CN117021641A

CN117021641A - System and method for controlling laminating precision of belt ply of forming machine

Info

Publication number: CN117021641A
Application number: CN202311007585.5A
Authority: CN
Inventors: 柳鹏磊
Original assignee: Qingdao Fujie Technology Co ltd
Current assignee: Qingdao Fujie Technology Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2023-11-10

Abstract

The application provides a system and a method for controlling attaching precision of a belt ply of a forming machine, wherein the system comprises a first subsystem, a second subsystem and a third subsystem; wherein: and by arranging corresponding detection equipment and control units in each system, signal transmission is carried out among the systems, so that the functions of deviation correction and detection are realized, and the attaching precision of the belt layer on the belt layer drum can be well judged.

Description

System and method for controlling laminating precision of belt ply of forming machine

Technical Field

The application belongs to the technical field of tire processing devices, and particularly relates to a system and a method for controlling attaching precision of a belt layer of a forming machine.

Technical Field

In the process of manufacturing the tire, the position and the attaching effect of the belt layer are very important, and once the position of the belt layer is uneven or the length is out of tolerance, or the material is attached poorly to the main drum or the belt drum, the quality of the tire can be directly affected. In order to ensure good laminating effect, manual intervention and parameter adjustment are often required, so that on one hand, the labor cost is increased, and on the other hand, the problem of unstable quality is easily caused due to the influence of human subjective factors.

The current forming machine belt layer usually uses an automatic deviation correcting system, and the automatic deviation correcting system consists of a sensor, a deviation correcting motor and a program controller. The program controller calculates the reference position (comprising the center and the edge) of the belt layer according to the tire formula, the sensor detects the actual position (comprising the center and the edge) of the current material, and when the actual position is different from the reference position, the program controller controls the deviation correcting motor to drive the belt layer to move to the reference position in a mode of driving the frame. The defects are that: 1. the correction system corrects the deviation according to the reference position, whether the actual position after the deviation correction reaches the accurate reference position or not, the difference between the actual position and the reference position is generated, and the correction system does not output data; 2. because the position of the sensor of the deviation correcting system is located between the two conveying belts, the material position measured by the deviation correcting system is not the final actual position of the material. 3. After the correction of the belt layer is completed, the actual shape and length of the belt layer are not detected by the detection device, and whether the actual position and the set position are different or not cannot be known. 4. The belt layer fixed length cutting signal is triggered by a fixed length switch on the equipment, and the belt layer deviation correcting system cannot directly output a signal to control the fixed length cutting 5.

Chinese patent publication No. CN104297263a discloses a belt lap detection analysis system. The defects are that: 1. detecting lap joint data and joint quality, but not detecting belt edges and belt center positions; 2. feedback control deviation correction according to the detection data is not disclosed; 3. the feedback belt ply fixed length cutting correction according to the detection data is not disclosed.

Disclosure of Invention

Aiming at the defects in the prior art, the application provides a system and a method for controlling attaching precision of a belt layer of a forming machine.

The system for controlling the attaching precision of the belt ply of the forming machine provided by the first aspect of the application comprises a first subsystem, a second subsystem and a third subsystem; wherein:

the first subsystem comprises a first conveying device for conveying the belt layers and a deviation correcting motor, wherein: the first conveying device is provided with a first frame and a first conveying belt arranged in the first frame; the first frame is a movable structure; the first end of the deviation correcting motor is fixedly arranged on the integral frame, the second end of the deviation correcting motor is a movable rod connected with the first frame, and the first frame can be pushed to move so as to drive the first conveyor belt to move;

The second subsystem includes a second conveyor for conveying the belt, the second conveyor having a second frame and a second conveyor belt mounted within the second frame; the belt layer can be conveyed from a first conveyor belt to a second conveyor belt; the conveying speeds of the first conveying belt and the second conveying belt are approximately equal, and a gap is formed between the first conveying belt and the second conveying belt;

the first subsystem further comprises a deviation rectifying light source, a deviation rectifying sensor and a first control unit electrically connected with the deviation rectifying sensor and the deviation rectifying motor; the deviation correcting light source and the deviation correcting sensor are respectively arranged above and below the gap;

the deviation correcting sensor is configured to receive light emitted by the deviation correcting light source and feed the light back to the first control unit;

the first control unit is configured to receive signals of the deviation correcting sensor and acquire real-time parameters of the belt layer; and comparing with a first set parameter in the first subsystem; when the belt layer and the belt layer are inconsistent, controlling a deviation rectifying motor to rectify the belt layer in real time;

the second subsystem further comprises a second detection sensor, a length encoder and a second control unit electrically connected with the second detection sensor and the length encoder; wherein: the second detection sensor is positioned above the second conveying belt; the measuring wheel of the length encoder contacts the surface of the second conveyor belt;

The second detection sensor is configured to emit light onto the second conveyor belt and receive reflected light, and transmit a signal to the second control unit;

the length encoder is configured to transmit a first encoder signal generated when the measuring wheel rotates to the second control unit;

the second control unit is configured to receive and store the signal from the second detection sensor and the first encoder signal from the length encoder; calculating parameters of the belt layer after deviation correction, and comparing the parameters with second set parameters in a second subsystem to judge whether the deviation correction is successful or not;

the third subsystem comprises a belt drum, wherein the belt drum is provided with a main shaft capable of rotating and a drum surface capable of rotating along with the main shaft and attaching the belt; the drum surface is adjacent to the second conveyor belt, so that the belt layer is wound on the drum from the tail end of the second conveyor belt, and is attached to the drum surface end to end;

the third subsystem further comprises a position encoder, a third detection sensor and a third control unit electrically connected with the position encoder and the third detection sensor; the position encoder is arranged on the belt drum and can rotate along with the belt drum; the third detection sensor is arranged at intervals with the drumhead;

the position encoder is configured to synchronously output a second encoder signal as the belt drum rotates;

Before the belt layer is wound on the drum, the belt layer drum is controlled to be calibrated to a zero position; the third control unit is configured to match the second encoder signal of the position encoder with the zero position of the belt drum, and store the difference between the angle of the third detection sensor and the zero position of the belt drum in the third subsystem;

the third detection sensor is configured to emit light onto the drumhead and receive reflected light, and transmit a signal to a third control unit;

further, the third control unit is configured to receive and store a signal from a third detection sensor and a second encoder signal from a position encoder; after the belt layer is completely wound, the signals are processed to obtain parameters of the belt layer on the drum surface, the parameters on the drum surface are compared with third set parameters in a third subsystem, and the laminating effect of the belt layer on the drum surface is judged.

In one embodiment, the real-time parameters of the belt include real-time width and real-time position.

In one embodiment, the correction sensor selects a linear array CCD sensor; the second detection sensor selects a laser camera; the third detection sensor selects a laser camera. The detection direction of the second detection sensor is perpendicular to the conveying direction of the belt layer; the detection direction of the third detection sensor is perpendicular to the drumhead.

In one embodiment, the deviation correcting light source, the deviation correcting sensor, the second detecting sensor, the length encoder and the third detecting sensor can be all installed on the integral frame.

In an embodiment, when the second control unit determines that the correction is unsuccessful, the second control unit is configured to feed back the result of the difference position to the first control unit; the first control unit is configured to automatically modify the first setting parameter based on the feedback.

In one embodiment, determining the bonding effect includes: (1) Detecting the axial position of any angle, and (2) detecting the circumferential splicing of the head and the tail; when the axial position of any angle deviates, the third control unit is configured to convert a deviation signal of the corresponding angle on the drum into a deviation signal of the corresponding length of the belt layer, and transmit the deviation signal to the first control unit and the second control unit so as to respectively correct the first setting parameter and the second setting parameter; (2) When the end-to-end circumferential splicing is deviated, the third control unit is configured to feed back the length information of the end-to-end splicing to the control unit of the forming machine; the molding machine control unit is configured to judge whether the length signal is the same as a preset length; when the belt layers are different, the control unit of the forming machine corrects the cutting setting length parameters of the next belt layer.

In an embodiment, more specifically, the second control unit is configured to receive and store the signal from the second detection sensor and the first encoder signal from the length encoder; calculating parameters of the belt layer after deviation correction, including the width and the position after deviation correction, and comparing the parameters with second set parameters in a second subsystem to judge whether the deviation correction is successful or not; further, the corrected parameters further include a length and an angle, and the second control unit is configured to feed back the length signal and the angle signal to the molding machine control unit; wherein, the molding machine control unit is configured to judge whether the length signal is the same as the preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer; the molding machine control unit is further configured to determine whether the angle signal is the same as a preset angle; when the two types of control signals are different, the control unit of the forming machine gives a warning to inform the staff of adjustment.

In an embodiment, the length encoder is further configured to transmit a first encoder signal generated when the measuring wheel rotates to the first control unit; the first control unit is configured to receive and store real-time parameters of the belt from the correction sensor and a first encoder signal from the length encoder during the belt end-to-end pass through the correction sensor; after the belt layer completely passes through, calculating the length of the belt layer, and transmitting a length signal to a forming machine control unit; the molding machine control unit is configured to judge whether the length signal is the same as a preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer.

In one embodiment, when the molding machine control unit receives the length signals of the first control unit and the second control unit simultaneously, the length signal from the second control unit is first selected.

In an embodiment, the first control unit is further configured to receive a signal from the deviation correcting sensor during the belt head passing the deviation correcting sensor, and output a signal to the molding machine control unit when the belt width reaches the first set width; the forming machine control unit is configured to control the servo motor to drive the first conveying belt to rotate to a required length, and then control the cutting device to cut the belt.

In an embodiment, the building machine control unit is configured to control the alignment of the belt drum to a null position before the belt is wound on the drum, and then to send a signal to the third control unit to control the matching of the position encoder with the belt drum.

The method for controlling fitting precision of the belt layer of the forming machine provided by the second aspect of the application adopts the system described in any embodiment, and the method comprises the following steps:

the belt layer is sequentially conveyed from the first conveying belt to the second conveying belt through a gap, and then is put on a drum;

the deviation correcting sensor receives light emitted by the deviation correcting light source and feeds the light back to the first control unit;

The first control unit receives signals of the deviation correcting sensor and acquires real-time parameters of the belt layer; and comparing with a first set parameter in the first subsystem; when the belt layer and the belt layer are inconsistent, controlling a deviation rectifying motor to rectify the belt layer in real time;

the second detection sensor emits light to the second conveyor belt and receives reflected light, and transmits a signal to the second control unit;

the length encoder transmits a first encoder signal generated when the measuring wheel rotates to the second control unit;

the second control unit receives and stores the signal from the second detection sensor and the first encoder signal from the length encoder; calculating parameters of the belt layer after deviation correction, and comparing the parameters with second set parameters in a second subsystem to judge whether the deviation correction is successful or not;

calibrating the belt drum to a null position before the belt is wound on the drum; the third control unit matches a second encoder signal of the position encoder with a zero position of the belt drum, and stores an angle of a third detection sensor and a zero position difference value of the belt drum in a third subsystem;

the third detection sensor emits light to the drum surface and receives reflected light, and transmits a signal to the third control unit;

The position encoder synchronously outputs a second encoder signal when rotating along with the belt layer drum;

the third control unit receives and stores the signal from the third detection sensor and the second encoder signal from the position encoder; after the belt layer is completely wound, the signals are processed to obtain parameters of the belt layer on the drum surface, the parameters on the drum surface are compared with third set parameters in a third subsystem, and the laminating effect of the belt layer on the drum surface is judged.

In an embodiment, the second detection sensor and the third detection sensor each select a laser camera; the second detection sensor vertically emits laser to the second conveyor belt and receives reflected light, and transmits signals to the second control unit; the third detection sensor vertically emits laser light to the drum surface and receives reflected light, and transmits a signal to the third control unit.

In an embodiment, when the second control unit judges that the deviation correction is unsuccessful, the second control unit feeds back the result of the difference position to the first control unit; the first control unit automatically corrects the first setting parameter according to the feedback.

In one embodiment, determining the bonding effect includes: (1) Detecting the axial position of any angle, and (2) detecting the circumferential splicing of the head and the tail; when the axial position of any angle deviates, the third control unit converts a deviation signal of the corresponding angle on the drum into a deviation signal of the corresponding length of the belt layer, and transmits the deviation signal to the first control unit and the second control unit to respectively correct the first setting parameter and the second setting parameter; (2) When the head-tail circumferential splicing is deviated, the third control unit feeds back the length information of the head-tail splicing to the control unit of the forming machine; the control unit of the forming machine judges whether the length signal is the same as the preset length; when the belt layers are different, the control unit of the forming machine corrects the cutting setting length parameters of the next belt layer.

In an embodiment, more specifically, the second control unit receives and stores the signal from the second detection sensor and the first encoder signal from the length encoder; calculating parameters of the belt layer after deviation correction, including the width and the position after deviation correction, and comparing the parameters with second set parameters in a second subsystem to judge whether the deviation correction is successful or not; further, the corrected parameters further comprise length and angle, and the second control unit feeds back the length signal and the angle signal to the control unit of the forming machine; the control unit of the forming machine judges whether the length signal is the same as the preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer; the forming machine control unit also judges whether the angle signal is the same as a preset angle; when the two types of control signals are different, the control unit of the forming machine gives a warning to inform the staff of adjustment.

In an embodiment, the length encoder further transmits a first encoder signal generated when the measuring wheel rotates to the first control unit; the method comprises the steps that in the process that the belt layer passes through a deviation correcting sensor from the beginning to the end, a first control unit receives and stores real-time parameters of the belt layer from the deviation correcting sensor and a first encoder signal from a length encoder; after the belt layer completely passes through, calculating the length of the belt layer, and transmitting a length signal to a forming machine control unit; the control unit of the forming machine judges whether the length signal is the same as the preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer.

In one embodiment, the first control unit receives the signal of the deviation correcting sensor during the process that the belt head passes through the deviation correcting sensor, and outputs the signal to the forming machine control unit when the belt width reaches the first set width; the control unit of the forming machine controls the servo motor to drive the first conveyer belt to rotate to the required length, and then controls the cutting device to cut the belt ply according to the cutting set length parameter.

In one embodiment, more specifically, the former control unit controls the belt drum to be calibrated to a null position before the belt is wound on the drum, and then sends a signal to the third control unit; the third control unit matches the second encoder signal of the position encoder with the zero position of the belt drum, and stores the difference between the angle of the third detection sensor and the zero position of the belt drum in the third subsystem.

Compared with the prior art, the application has the beneficial effects that:

according to the system for controlling the laminating precision of the belt layer of the forming machine, provided by at least one embodiment of the application, the deviation rectifying positions of the belt layer are automatically adjusted through deviation rectifying and detecting of three positions, the set width of a 1/2 width signal is output as a fixed length cutting signal, the actual length and laminating effect of the belt layer can be detected, and the length of the belt layer can be corrected in a feedback manner.

According to the method for controlling the laminating precision of the belt layer of the forming machine, provided by at least one embodiment of the application, the automatic compensation of the belt layer position and the automatic compensation of the belt layer length can be controlled through the comparison between the detection result and the set parameters and the intelligent data transmission and program control between subsystems, so that the aim of fully automatically controlling the laminating precision is fulfilled.

Drawings

FIG. 1 is a hardware schematic of a system of one embodiment;

FIG. 2 is a control flow diagram of one embodiment;

FIG. 3 is a belt schematic of an embodiment;

numbering in the figures: 1 a first subsystem, a first conveying device 101, a first frame 1011, a first conveying belt 1012, a 102 deviation rectifying motor, a 103 deviation rectifying light source, a 104 deviation rectifying sensor and a 105 first control unit; 2 a second subsystem, 201 a second conveyor, 2011 a second frame, 2012 a second conveyor belt, 202 a second detection sensor, 203 a length encoder, 204 a second control unit; 3 third subsystem, 301 belt drum, 3011 spindle, 3012 drumhead, 3013 support, 302 position encoder, 303 third detection sensor, 304 third control unit; 4 a belt layer; 5 gaps; 6 a molding machine control unit.

Detailed Description

The following detailed description of the present application is provided in connection with specific embodiments, however, it should be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "bottom", "inner", etc. are based on the directions or positional relationships shown in fig. 1, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The first embodiment of the present application provides a system for controlling the fitting precision of a belt layer of a forming machine (hereinafter may be simply referred to as a system), which comprises a first subsystem 1, a second subsystem 2 and a third subsystem 3; wherein:

the first subsystem 1 comprises a first conveyor 101 for conveying the belt 4, having a first frame 1011 and a first conveyor belt 1012 mounted in the first frame.

The first frame 1011 is a movable structure and may be hinged to a unitary frame (not shown), for example. The first conveyor belt 1012 is driven by a servo motor (not shown) to control the conveying length of the belt layer 4. A deviation rectifying motor 102 is arranged below the first conveying device 101, and a linear motor can be selected. The first end of the deviation rectifying motor 102 may be fixedly disposed on the integral frame, and the second end of the deviation rectifying motor 102 is a movable rod connected to the first frame 1011 to push the first frame 1011 to move, so that the first conveyor belt 1012 moves along with the first frame 1011 to displace, so as to rectify the position of the belt layer 4 on the first conveyor belt 102. The technical solution of the present paragraph concerning the deviation rectifying motor 102 driving the components of the first conveyor device 101 for rectifying the belt 4 can be implemented by using the prior art, which is well known to those skilled in the art.

The second subsystem 2 comprises a second conveyor 201 for conveying the belt 4, having a second frame 2011 and a second conveyor 2012 mounted inside the second frame. The first frame and the second frame may also be part of a unitary frame.

The belt 4 is transferred from the first conveyor belt 1012 to the second conveyor belt 202; the first conveyor belt 1012 and the second conveyor belt 202 have the same conveying speed, and a gap 5 is formed therebetween.

The first subsystem 1 further comprises a deviation correcting light source 103, a deviation correcting sensor 104, and a first control unit 105 electrically connected to the deviation correcting sensor 104 and the deviation correcting motor 102. The deviation correcting light source 103 and the deviation correcting sensor 104 are respectively arranged above and below the gap 5, for example, are arranged on the integral frame; generally, for ease of installation, the correction light source 103 is located below the gap 5 and the correction sensor 104 is located above the gap 5, as shown in fig. 1. The deviation correcting sensor 104 can be a linear array CCD sensor, and the formed product can be purchased.

The deviation correcting sensor 104 is configured to receive the light emitted by the deviation correcting light source 103 and feed back to the first control unit 105 to obtain real-time parameters of the belt layer 4, including real-time width and real-time position.

The first control unit 105 is configured to receive the signal of the deviation correcting sensor 104, and acquire real-time parameters of the belt layer 4; and comparing with a first set parameter in the first subsystem 1; when the belt layer and the belt layer are inconsistent, the deviation rectifying motor 102 is controlled to rectify the belt layer 4 in real time, and the real-time position of the belt layer 4 is changed.

More specifically, the first control unit 105 is configured to receive a signal from the deviation correcting sensor 104 and make a judgment: when the belt 4 does not reach the gap 5, the first control unit 105 determines that there is no belt 4 at this time; when the belt layer 4 reaches the gap 5, the deviation correcting sensor 104 transmits the received light signal in the change to the first control unit 105 to acquire real-time parameters of the belt layer 4; when the deviation correcting sensor 104 detects the position deviation of the belt layer 4, the first control unit 105 controls the deviation correcting motor 102 to move so as to correct the belt layer 4 in real time.

The second subsystem 2 further comprises a second detection sensor 202, a length encoder 203, and a second control unit 204 electrically connecting the two, wherein:

the second detection sensor 202 is located above the second conveyor belt 2012, for example, mounted on a unitary frame; a conventional laser camera may be selected, incorporating a CCD chip. The detection direction of the second detection sensor 202 is perpendicular to the conveying direction of the belt layer 4 to ensure that the measurement position is optimal.

The length encoder 203 may be mounted on the second frame 2011 or on a unitary frame, with the measuring wheel of the length encoder 203 contacting the surface of the second conveyor belt 2012.

The second detection sensor 202 is configured to vertically emit laser light onto the second conveyor 2012 and receive the reflected light, and transmit a reflected light signal to the second control unit 204, so as to obtain corrected parameters of the belt layer 4 on the second conveyor 2012, including the corrected width and position.

The length encoder 203 is configured to transmit a first encoder signal generated when the measuring wheel rotates to the second control unit 204.

The second control unit 204 is configured to receive and store the signal from the second detection sensor 202 and the signal from the length encoder 203; the parameters of the belt layer 4 after deviation correction are calculated through an internal operation program, including the width and the position after deviation correction, and compared with the second set parameters (including the set width and the position information) in the second subsystem 2 to determine whether the deviation correction is successful. When the correction is unsuccessful, the second control unit 204 feeds back the result of the difference position to the first control unit 105; the first control unit 105 is further configured to automatically modify the first setting parameter based on the feedback to automatically compensate for the next belt deviation correction. The second setting parameter may be the same as the first setting parameter; but may also be different in case there is e.g. a mechanical error or the like.

In the upper section, the calculated belt deviation correcting parameters may also include length and angle (sharp angle of diamond belt); the second control unit 204 is configured to feed back the length signal and the angle signal to the molding machine control unit 6. The molding machine control unit 6 is configured to determine whether the length signal is the same as a preset length; when the belt layers are different, the former control unit 6 corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer, so that the good lamination in the length direction is ensured. The forming machine control unit is further configured to judge whether the angle signal is the same as a preset angle; when the two types of the control units are different, the control unit of the forming machine gives a warning to inform relevant staff to adjust.

In one embodiment, the length encoder 203 may also transmit a first encoder signal generated when the measuring wheel rotates to the first control unit 105. During the head-to-tail passage of the belt 4 through the correction sensor 104 (or gap 5), the first control unit 105 is configured to receive and store real-time parameters of the belt 4 from the correction sensor 104 and a first encoder signal from the length encoder 203; after the belt 4 has passed completely, the length of the belt 4 is obtained by an internal program operation and the length signal is transmitted to the molding machine control unit 6. The molding machine control unit 6 is configured to determine whether the length signal is the same as a preset length; when the belt layers are different, the former control unit 6 corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer, so that the good lamination in the length direction is ensured. The method of calculating the length of the belt layer 4 by the first control unit 105 in combination with the real-time parameter of the deviation correcting sensor 104 and the first encoder signal of the length encoder 203 may be a calculation method in the prior art, and those skilled in the art are familiar with the calculation method.

When the forming machine control unit 6 receives the length signals of the first control unit 105 and the second control unit 204 at the same time, the selection can be performed according to actual situations. The signal from the second control unit 204 is typically selected, and when there is no second control unit signal, the signal from the first control unit 105 may be selected.

In one embodiment, the first control unit 105 is further configured to: receiving signals of the deviation correcting sensor 104 in the process that the head of the belt layer 4 passes through the deviation correcting sensor 104; when the width of the belt layer 4 reaches a first set width (for example, 1/2 or 1/3 of the average width of the belt layer, etc., as shown in fig. 3), a signal is output to the molding machine control unit 6. The molding machine control unit 6 is configured to control the servo motor to rotate the first conveyor 1012 to a desired length, and then control a cutting device (not shown) to cut the belt layer 4 according to a cutting set length parameter stored in the molding machine control unit 6. The mode of replacing a trigger switch in the prior art is adopted by the embodiment, so that the control is more accurate; meanwhile, compared with the mode of triggering the head of the belt layer 4 in the prior art, the mode of selecting the first set width of the belt layer 4 has the characteristic of easy deformation of the head, and the reliability of the embodiment is higher.

As shown in fig. 1, the third subsystem 3 comprises a belt drum 301 having a rotatable main shaft 3011, a drum head 3012 capable of fitting the belt 4, and a support 3013 connected between the main shaft and the drum head and rotatable with the main shaft. The drumhead 3012 is adjacent to the second conveyor 2012 such that the belt 4 is trained over the end of the second conveyor 2012, abutting end to end on the drumhead 3012.

The third subsystem 3 further comprises a position encoder 302, a third detection sensor 303 and a third control unit 304 electrically connecting both.

The position encoder 302 is mounted on the belt drum support 3013 and is capable of synchronously outputting a second encoder signal as it rotates with the belt drum 301.

The third detection sensor 303 may be mounted on a unitary frame, for example, above the drumhead 3012, as shown in FIG. 1; a conventional laser camera may be selected, incorporating a CCD chip. The detection direction of the third detection sensor 303 is perpendicular to the drumhead 3012 to ensure that the measurement position is optimal.

Before the belt 4 is wound on the drum, the forming machine control unit 6 is configured to control the belt drum 301 to calibrate to a null position, send a signal to the third control unit 204, control the matching of the signal of the position encoder 302 with the null position of the belt drum 301, and store the difference between the angle of the third detection sensor 303 and the null position of the belt drum 301 in the third subsystem 3; so that parameters of any angle of the belt 4 on the belt drum 301 (including axial position on the drum) can be obtained by internal calculation.

The third detection sensor 303 is configured to vertically emit laser light onto the drumhead 3012 and receive reflected light, and transmit a reflected light signal to the third control unit 304, thereby acquiring parameters (including edge position, center position, and height of any angle of the belt layer) of the belt layer 4 on the drumhead 3012.

The third control unit 304 is configured to receive and store the signal from the third detection sensor 303 and the signal from the position encoder 302; after the belt layer 4 is completely wound, the signals are processed through an internal operation program to obtain parameters of the belt layer 4 on the drum surface, the parameters on the drum surface are compared with third set parameters in a third subsystem, and the attaching effect of the belt layer 4 on the drum surface is judged.

Judging the laminating effect comprises (1) detecting the axial position of any angle, including head-to-tail axial splicing, and (2) detecting head-to-tail circumferential splicing. For example, with respect to (1), it is possible to detect the edge position and the center position of the belt layer, and determine whether the belt layer 4 is distorted on the drum surface; the distortion may also occur at the joint, so that problems occur with the end-to-end axial splice, which would overlap if the axes were too dense; if the axial direction is too sparse, gaps can occur between the head and the tail. For the step (2), whether a problem occurs in the end-to-end circumferential splicing or not can be detected, and if the length of the belt layer is too long, the end-to-end overlapping can occur; if the belt length is too short, gaps may occur from end to end. The axial direction and the circumferential direction here are the axial direction and the circumferential direction of the reference belt drum, respectively.

(1) When a deviation occurs in the axial position of any angle, the third control unit 304 is configured to convert the deviation signal of the corresponding angle on the drum into a deviation signal of the corresponding length of the belt layer, and transmit it to the first control unit 105 and the second control unit 204; and correcting the first setting parameter and the second setting parameter respectively to correct and detect the next belt layer.

(2) When the end-to-end circumferential splice is biased, the third control unit 304 is configured to feed back the length information of the end-to-end splice to the forming machine control unit. The molding machine control unit 6 is configured to determine whether the length signal is the same as a preset length; when the belt layers are different, the molding machine control unit 6 corrects the cutting setting length parameters of the next belt layer, and ensures good lamination in the length direction.

For example, in the third subsystem 3, it is desirable that the belt layers are attached end to end on the drum head, and that the respective portions are not distorted or overlapped. For example, when the third detection sensor 303 detects that the belt layer 4 on the drumhead 3012 is distorted, the third control unit 304 can acquire angle information at the distorted position on the drum, and further convert the angle information into a distorted position of the belt layer in the longitudinal direction. Thereby notifying the first control unit 105 and the second control unit 204 to correct the first setting parameter and the second setting parameter, respectively. For example, when it is detected that the belt layers are not well fitted in the axial direction, the belt layers overlap end to end due to too close axial direction; or gaps occur at the head and tail due to axial oversphobicity, in a manner substantially similar to that described above for the situation in which the belt layer 4 is distorted. For another example, when it is detected that the belt layer is not well attached in the circumferential direction, the head-to-tail overlap is caused due to the excessively long length, or the head-to-tail gap is caused due to the excessively short length; this indicates that there is a belt length problem, and the third control unit 304 transmits this signal to the molding machine control unit 6, which modifies the cut setting length parameter, thereby updating the cut length of the belt.

In one embodiment, the sweep frequency of the deskew sensor 104 may be configured to be 500-10000HZ and the response period of the first control unit 105 to be 0.1-2 ms. The pulse number of the length encoder 203 is 2000/turn, the scanning frequency of the second detection sensor 202 is 500-10000HZ, and the response period of the second control unit 204 is 0.1-2 ms. The scanning frequency of the third detection sensor 303 is 500-10000HZ, and the response period of the third control unit 304 is 0.1-2 ms.

The first control unit 105, the second control unit 204 and the third control unit 304 may be independent control units, for example, control elements such as a CPU, a PLC and the like are adopted, and the corresponding functions are realized through programming. The control unit may be integrated, for example, three integrated, or integrated in the molding machine control unit 6, and the corresponding functions may be implemented by using a CPU, a host, and the like, as the conditions allow.

The second embodiment of the application provides a method for controlling the attaching precision of the belt ply of a forming machine, which adopts the system for controlling the attaching precision of the belt ply of the forming machine in any embodiment; the method comprises the following steps:

the belt 4 is sequentially conveyed from the first conveyor belt 1012 to the second conveyor belt 2012 through the gap 5, and then is wound up;

The deviation correcting sensor 104 receives the light emitted by the deviation correcting light source 103 and feeds back the light to the first control unit 105;

the first control unit 105 receives the signal of the deviation correcting sensor 104, and acquires real-time parameters of the belt layer 4, including real-time width and real-time position; and comparing with a first set parameter in the first subsystem 1; when the belt layer and the belt layer are inconsistent, the deviation rectifying motor 102 is controlled to rectify the deviation of the belt layer 4 in real time;

the second detection sensor 202 emits laser light vertically onto the second conveyor 2012 and receives the reflected light, and transmits a signal to the second control unit 204;

the length encoder 203 transmits a first encoder signal generated when the measuring wheel rotates to the second control unit 204;

the second control unit 204 receives and stores the signal from the second detection sensor 202 and the signal from the length encoder 203; calculating parameters of the belt layer 4 after deviation correction, including the width and the position after deviation correction, and comparing the parameters with second set parameters in the second subsystem 2 to determine whether the deviation correction is successful; when the correction is unsuccessful, the second control unit 204 feeds back the result of the difference position to the first control unit 105; the first control unit 105 automatically corrects the first setting parameter according to the feedback to automatically compensate when correcting the deviation of the next belt layer;

Before the belt 4 is wound on the drum, the belt drum 301 is calibrated to a null position; the third control unit 204 matches the signal of the position encoder 302 with the zero position of the belt drum 301, and the difference between the angle of the third detection sensor 303 and the zero position of the belt drum 301 is stored in the third control unit 204;

the third detection sensor 303 vertically emits laser light onto the drumhead 3012 and receives the reflected light, and transmits a signal to the third control unit 304;

the position encoder 302 synchronously outputs a second encoder signal when rotating with the belt layer drum 301;

the third control unit 304 receives and stores the signal from the third detection sensor 303 and the signal from the position encoder 302; after the belt layer 4 is completely wound, the signals are processed to obtain parameters of the belt layer 4 on the drum surface, the parameters on the drum surface are compared with third set parameters in a third subsystem, and the attaching effect of the belt layer 4 on the drum surface is judged.

In one embodiment, the determining the fitting effect includes (1) detecting an axial position of any angle, including an end-to-end axial splice, and (2) detecting an end-to-end circumferential splice; wherein,

(1) When the axial position of any angle deviates, the third control unit 304 converts the deviation signal of the corresponding angle on the drum into the deviation signal of the corresponding length of the belt layer, and transmits the deviation signal to the first control unit 105 and the second control unit 204, and corrects the first setting parameter and the second setting parameter respectively;

(2) When the end-to-end circumferential splicing is deviated, the third control unit 304 feeds back the length information of the end-to-end splicing to the control unit of the forming machine; the forming machine control unit 6 judges whether the length signal is the same as the preset length; when it is different, the molding machine control unit 6 corrects the cutting setting length parameter of the next belt layer.

In one embodiment, the second control unit 204 receives and stores the signal from the second detection sensor 202 and the signal from the length encoder 203; the calculated parameters after belt deviation correction can also comprise length and angle; the second control unit 204 feeds back the length signal and the angle signal to the molding machine control unit 6; wherein, the control unit 6 of the forming machine judges whether the length signal is the same as the preset length; when it is different, the former control unit 6 corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer; the forming machine control unit 6 judges whether the angle signal is the same as a preset angle; when it is different, the molding machine control unit 6 gives a warning to notify the worker of the adjustment.

In one embodiment, the length encoder 203 may also transmit a first encoder signal generated when the measuring wheel rotates to the first control unit 105; during the head-to-tail passage of the belt 4 through the correction sensor 104 (or gap 5), the first control unit 105 receives and stores the real-time parameters of the belt 4 from the correction sensor 104 and the first encoder signal from the length encoder 203; after the belt 4 has passed completely, the first control unit 105 calculates the length of the belt 4 and transmits the length signal to the molding machine control unit 6; the forming machine control unit 6 judges whether the length signal is the same as the preset length; when it is different, the former control unit 6 corrects the speed parameter of the drum on the current belt layer, and corrects the cut setting length parameter of the next belt layer.

In one embodiment, when the molding machine control unit 6 receives the length signals of the first control unit 105 and the second control unit 204 simultaneously, the length signal from the second control unit 204 is selected for use.

In one embodiment, the first control unit 105 receives the signal of the deviation correcting sensor 104 during the process that the head of the belt layer 4 passes the deviation correcting sensor 104, and outputs the signal to the molding machine control unit 6 when the width of the belt layer 4 reaches the first set width; the forming machine control unit 6 controls the servo motor to drive the first conveyor belt 1012 to rotate to a required length, and then controls the cutting device to cut the belt 4.

In one embodiment, the machine control unit 6 controls the belt drum 301 to be calibrated to a null position before the belt 4 is wound up, and then sends a signal to the third control unit 204; the third control unit 204 controls matching of the signal of the position encoder 302 with the zero position of the belt drum 301, and the difference between the angle of the third detection sensor 303 and the zero position of the belt drum 301 is stored in the third control unit 204.

The order of the steps in the present embodiment is merely a description order, and in actual operation, the order may be adjusted according to actual requirements, so the description order does not constitute an absolute limitation of the present application.

The above embodiments are merely illustrative of the preferred embodiments of the present application and are not intended to limit the scope of the present application, and various modifications and improvements made by those skilled in the art to the technical solution of the present application should fall within the protection scope defined by the claims of the present application without departing from the spirit of the design of the present application.

Claims

1. The system for controlling the attaching precision of the belt ply of the forming machine is characterized by comprising a first subsystem, a second subsystem and a third subsystem; wherein:

2. The system for controlling fitting accuracy of belt layers of molding machine according to claim 1, wherein when the second control unit judges that the deviation correction is unsuccessful, the second control unit is configured to feed back the result of the difference position to the first control unit; the first control unit is configured to automatically modify the first setting parameter based on the feedback.

3. The system for controlling the fitting accuracy of a belt layer of a molding machine according to claim 1, wherein the judging of the fitting effect includes: (1) Detecting the axial position of any angle, and (2) detecting the circumferential splicing of the head and the tail; when the axial position of any angle deviates, the third control unit is configured to convert a deviation signal of the corresponding angle on the drum into a deviation signal of the corresponding length of the belt layer, and transmit the deviation signal to the first control unit and the second control unit so as to respectively correct the first setting parameter and the second setting parameter; (2) When the end-to-end circumferential splicing is deviated, the third control unit is configured to feed back the length information of the end-to-end splicing to the control unit of the forming machine; the molding machine control unit is configured to judge whether the length signal is the same as a preset length; when the belt layers are different, the control unit of the forming machine corrects the cutting setting length parameters of the next belt layer.

4. A system for controlling fit accuracy of a belt of a forming machine according to any one of claims 1-3, characterized in that more specifically, the second control unit is configured to receive and store a signal from a second detection sensor and a first encoder signal from a length encoder; calculating parameters of the belt layer after deviation correction, including the width and the position after deviation correction, and comparing the parameters with second set parameters in a second subsystem to judge whether the deviation correction is successful or not; further, the corrected parameters further include a length and an angle, and the second control unit is configured to feed back the length signal and the angle signal to the molding machine control unit; wherein, the molding machine control unit is configured to judge whether the length signal is the same as the preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer; the molding machine control unit is further configured to determine whether the angle signal is the same as a preset angle; when the two types of control signals are different, the control unit of the forming machine gives a warning to inform the staff of adjustment.

5. A system for controlling fit accuracy of a belt layer of a molding machine according to any one of claims 1-3, wherein the length encoder is further configured to transmit a first encoder signal generated when the measuring wheel rotates to the first control unit; the first control unit is configured to receive and store real-time parameters of the belt from the correction sensor and a first encoder signal from the length encoder during the belt end-to-end pass through the correction sensor; after the belt layer completely passes through, calculating the length of the belt layer, and transmitting a length signal to a forming machine control unit; the molding machine control unit is configured to judge whether the length signal is the same as a preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer.

6. A system for controlling the fit accuracy of a belt layer of a forming machine according to any one of claims 1 to 3, wherein the first control unit is further configured to receive a signal from the deviation correcting sensor during passage of the belt layer head portion through the deviation correcting sensor, and to output a signal to the forming machine control unit when the belt layer width reaches a first set width; the forming machine control unit is configured to control the servo motor to drive the first conveying belt to rotate to a required length, and then control the cutting device to cut the belt.

7. A system for controlling the fit accuracy of a belt layer of a forming machine according to any one of claims 1-3, characterized in that the real-time parameters of the belt layer include real-time width and real-time position; the deviation correcting sensor selects a linear array CCD sensor; the second detection sensor selects a laser camera; a third detection sensor selects a laser camera; the detection direction of the second detection sensor is perpendicular to the conveying direction of the belt layer; the detection direction of the third detection sensor is vertical to the drum surface; the deviation correcting light source, the deviation correcting sensor, the second detecting sensor, the length encoder and the third detecting sensor are all arranged on the integral frame.

8. A method for controlling attaching precision of a belt layer of a forming machine, characterized in that the system for controlling attaching precision of a belt layer of a forming machine according to any one of claims 1 to 7 is adopted; the method comprises the following steps:

The belt layers are sequentially conveyed from the first conveying belt to the second conveying belt through gaps, and then the belt layers are put on drums;

9. The method for controlling fitting accuracy of belt layer of molding machine according to claim 8, wherein,

when the second control unit judges that the deviation correction is unsuccessful, the second control unit feeds back the result of the difference position to the first control unit; the first control unit automatically corrects the first setting parameter according to the feedback;

more specifically, the second control unit receives and stores the signal from the second detection sensor and the first encoder signal from the length encoder; calculating parameters of the belt layer after deviation correction, including the width and the position after deviation correction, and comparing the parameters with second set parameters in a second subsystem to judge whether the deviation correction is successful or not; further, the corrected parameters further comprise length and angle, and the second control unit feeds back the length signal and the angle signal to the control unit of the forming machine; the control unit of the forming machine judges whether the length signal is the same as the preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer; the forming machine control unit also judges whether the angle signal is the same as a preset angle; when the two types of control signals are different, the control unit of the forming machine gives a warning to inform the staff of adjustment.

Judging the laminating effect comprises the following steps: (1) Detecting the axial position of any angle, and (2) detecting the circumferential splicing of the head and the tail; when the axial position of any angle deviates, the third control unit converts a deviation signal of the corresponding angle on the drum into a deviation signal of the corresponding length of the belt layer, and transmits the deviation signal to the first control unit and the second control unit to respectively correct the first setting parameter and the second setting parameter; (2) When the head-tail circumferential splicing is deviated, the third control unit feeds back the length information of the head-tail splicing to the control unit of the forming machine; the control unit of the forming machine judges whether the length signal is the same as the preset length; when the belt layers are different, the control unit of the forming machine corrects the cutting setting length parameters of the next belt layer.

10. Method for controlling the fitting accuracy of a belt layer of a molding machine according to claim 8 or 9, characterized in that,

the second detection sensor and the third detection sensor both select a laser camera; the second detection sensor vertically emits laser to the second conveyor belt and receives reflected light, and transmits signals to the second control unit; the third detection sensor vertically emits laser to the drum surface and receives reflected light, and transmits a signal to the third control unit;

The length encoder also transmits a first encoder signal generated when the measuring wheel rotates to the first control unit; the method comprises the steps that in the process that the belt layer passes through a deviation correcting sensor from the beginning to the end, a first control unit receives and stores real-time parameters of the belt layer from the deviation correcting sensor and a first encoder signal from a length encoder; after the belt layer completely passes through, calculating the length of the belt layer, and transmitting a length signal to a forming machine control unit; the control unit of the forming machine judges whether the length signal is the same as the preset length; when the belt layers are different, the forming machine control unit corrects the speed parameter of the drum on the current belt layer and corrects the cutting setting length parameter of the next belt layer;

in the process that the belt head passes through the deviation correcting sensor, the first control unit receives the signal of the deviation correcting sensor, and when the belt width reaches a first set width, the first control unit outputs the signal to the control unit of the forming machine; the forming machine control unit controls the servo motor to drive the first conveying belt to rotate to a required length, and then controls the cutting device to cut the belt ply;

more specifically, before the belt is wound on the drum, the former control unit controls the belt drum to be calibrated to a null position and then sends a signal to the third control unit; the third control unit matches the second encoder signal of the position encoder with the zero position of the belt drum, and stores the difference between the angle of the third detection sensor and the zero position of the belt drum in the third subsystem.