KR200327398Y1 - Industrial ink-jet printer - Google Patents

Abstract

The present invention relates to an industrial inkjet printer, and the conventional industrial inkjet printer has a problem in that the timing belt is loosened or the support structure is weak when the printer head is moved, and the support structure is weak, and the structure of the transfer unit for adjusting the height of the printing object is complicated. There was an issue rising. In consideration of the above problems, the present invention improves the rigidity of the path through which the print head is transferred using the L guide, and forms an insertion structure in the timing belt and the timing belt pulley, and uses the two X-type supports as the structure of the transfer part. It is configured to be able to freely adjust the height of the print object. With this configuration, the present invention has an effect of more stably supporting the path in which the print head moves by using the LM guide to secure the stability of the print operation, and the driving of the timing belt and the timing belt for moving the print head. The part that abuts the supporting pulley is composed of a groove and a protrusion structure inserted into the groove, thereby preventing the timing belt from peeling off and driving the belt more effectively, thereby improving the stability of the driving. By simplifying the structure to adjust the height of the more effective to lower the price of the industrial inkjet printer.

Description

Industrial Inkjet Printers {INDUSTRIAL INK-JET PRINTER}

The present invention relates to an industrial inkjet printer, and more particularly to an industrial inkjet printer that can easily adjust the height of the printing object, the cost can be reduced simply to the height adjustment structure.

Conventionally, a printer capable of printing on a printing object such as a metal plate or a wooden plate of various thicknesses adjusts the height of the print head, or fixes the height of the top and bottom of the printer head and adjusts the height of the printing object loading part on which the printing object is mounted. It is possible to print a desired pattern on the printing object having a variety of thickness.

However, the configuration for adjusting the height of the conventional printing object loading portion has a problem that the configuration is complicated, the cost increases accordingly.

Such an example is described in Korean Utility Model Publication No. 20-0300294, with reference to this will be described in detail a conventional industrial inkjet printer.

1 is a configuration diagram of a transfer driving means 500 of a conventional industrial inkjet printer, and as shown therein, a top plate 510 and a bottom plate 520 of a flat material having a predetermined interval up and down, and a plurality of X-shaped links ( 531 is coupled to the link coupling body 530 disposed in parallel between the top plate 510 and the bottom plate 520 and a plurality of support bars 540 installed between each free end of the link coupling body 530. 550 and the link assembly 530 is contracted and expanded according to the thickness of the printing object fixed to the upper surface of the upper plate 510 to automatically or manually adjust the distance between the upper plate 510 and the bottom plate 520. Is installed on one side of the automatic lifting control means 800 and the bottom plate 520 includes a height sensor 560 for detecting the distance between the top plate 510 and the bottom plate 520.

Here, the upper and lower support bars 540 positioned at the center of the link assembly 530 are fixed to the lower surface of the upper plate 510 and the upper surface of the bottom plate 520, respectively.

On one side of the upper surface of the upper plate 510, the scales are formed crosswise, i.e., horizontally and vertically, so that the print objects can be accurately positioned at the print position, and numbers are displayed at predetermined intervals to determine where to start printing the print objects. Make a decision.

In addition, the upper surface of the upper plate 510 is provided with a non-slip member for printing object made of a rubber magnet or an anti-slip pad to prevent and fix the sliding movement of the printing object.

The automatic lifting control means 800, the support bar 810 is installed to connect the intersection of the link 531, and through the threaded portion formed inside the central portion of the support bar 810, each support bar Fastening holes 820 formed to have threads in opposite directions at 810 and through holes 820 of each of the supporting parts 810 are installed through, and threads corresponding to the fastening holes 820 are formed, respectively. The rotating shaft 830 and the drive shaft extending in the same line as the rotating shaft 830, the through-installed drive shaft, and comprises a drive motor 840 for forward and reverse driving according to the signal of the controller.

However, the transfer driving means of the conventional industrial inkjet printer as described above uses a plurality of X-type links and supporting means for supporting the same, and its configuration is complicated and causes a cost increase.

The present invention in view of the above problems is to provide an industrial inkjet printer that can lower the cost by simplifying the structure of the transport drive means.

In addition, another object of the present invention is to simplify the frame structure of the conventional industrial inkjet printer, and to provide an industrial inkjet printer having a frame structure that is easy to transfer the print head.

The present invention for achieving the above object is a print head unit for transferring the print head to perform printing on the print object; In the industrial inkjet printer consisting of a conveying portion for adjusting the height according to the thickness of the object to be printed, The print head portion, a bracket installed on the inner edge of the printer case, a timing pulley attached to the bracket and supporting the timing belt, It consists of a printer head moving in accordance with the drive of the timing belt, an EL guide for supporting the movement of the print head, and a drive motor for driving the timing belt, the transfer unit is a top plate on which a printing object is placed, and the top plate A portion is joined to the bottom surface, the K-shaped guide frame for supporting the top plate, a moving shaft coupled to one side of the K-shaped guide frame, the movable shaft is movable in the longitudinal direction of the guide frame, and the width axis of the K-shaped guide frame The tooth is inserted into a hole through a central portion of the shaft and rotated. A rotating shaft for moving the shaft along two longitudinal axes of the K-shaped guide frame, two X-shaped supports coupled to both ends of the moving shaft to be rotatable, and rotatably coupled to an edge of the K-shaped guide frame, and the two X A central support that interconnects the central portions of the shaped supports, and a lower portion of the two X shaped supports that are coupled to one side of the X shaped support to be rotatable and movable, and that the other side is rotatable and fixed to be impossible to move. It is characterized by its configuration as a support.

1 is a configuration diagram of a conventional industrial inkjet printer transfer unit.

2 is a plan view of an industrial inkjet printer according to the present invention.

3 is a front view of FIG. 2;

Figure 4 is a perspective view of the transfer portion according to the present invention.

Figure 5 is a detailed configuration of the K-shaped guide frame and the moving shaft of the transfer unit applied to the present invention.

Figure 6 is a block diagram of a linear bearing applied to the present invention.

Figure 7 is a detailed configuration showing the combination of the lower support and X-type support applied to the present invention.

8A to 8C are exemplary views and cross-sectional views of a timing pulley and a timing belt respectively applied to the present invention.

9a to 9b is a front and side view of the shaft fixing bracket applied to the present invention.

10 is a detailed plan view of the LM guide unit applied to the present invention.

* Description of the symbols for the main parts of the drawings *

100 case 200 print head

210: bracket 220: timing pulley

230: timing belt 240: print head

250: LM guide 260: elastic support

270: guide support 280: motor

290: rotating connecting shaft 291: shaft fixing bracket

300: transfer unit 310: the upper plate

320: K-shaped guide frame 330: moving axis

340: rotation axis 350: X type support

360: center support 370: lower support

When described in detail with reference to the accompanying drawings an embodiment of the present invention is configured as follows.

Figure 2 is a plan view of the industrial inkjet printer according to the present invention, Figure 3 is a front view, Figure 4 is a projection perspective view of the transfer portion, as shown in the print head moving in the upper part of the LM guide inside the case 100 as shown therein A print head unit 200 which performs printing on the printing object by using; Located below the print head 200, it is composed of a transfer unit 300 for adjusting the height of the print object.

The print head unit 200 is supported by the bracket 210 installed at the inner edge of the case 100 and the bracket 210 to maintain the tension of the timing belt 230, and the timing belt 230 is driven. A timing pulley 220 that rotates so as to be rotated, a printer head 240 connected to the timing belt 230 and moving according to the driving of the timing belt 230, and a path through which the printer head 240 is moved. LM GUIDE (250) for supporting the LM guide, an elastic support 260 for supporting the LM guide 250 to have a slight elasticity, and the elastic support 260 is coupled, the LM guide 250 A guide support portion 270 protruding from the case 100 to further reinforce the support of the support), and a driving motor 280 to drive the timing belt 230; It consists of a rotation connecting shaft 290 for connecting the two timing pulleys 220 in a position adjacent to the drive motor 280, and a shaft fixing bracket 291 for fixing the rotation connecting shaft 290.

The transfer part 300 is a top plate 310 on which a printing object is placed, a portion is bonded to the bottom surface of the top plate 310, ㅁ type guide frame 320 for supporting the top plate 310, and the ㅁ type guide frame ( It is coupled to one side of the 320, the movable shaft 330 which is movable in the longitudinal direction of the guide frame, and inserted into a punch through the central portion of the width axis and the moving shaft 330 of the ㅁ -shaped guide frame 320 A rotation shaft 340 for moving the moving shaft 330 along two axes in the longitudinal direction of the K-shaped guide frame 320 by rotation; Two X-shaped supports 350 which are coupled to both ends of the movable shaft 330 so as to be rotatable, and which are rotatably coupled to a corner of the K-shaped guide frame 320; A central support 360 connecting the central portions of the two X-shaped supports 350; The lower side of the two X-shaped support 350 is coupled to one side of the X-shaped support 350 so as to rotate and move, the other side is rotatable, consisting of a lower support 370 fixedly coupled to be impossible to move do.

Hereinafter, the configuration, operation and effects of the present invention configured as described above will be described in more detail.

First, FIG. 5 is a detailed configuration diagram of the K-shaped guide frame 320 and the moving shaft 330 of the transfer unit 300, as shown in the K-shaped guide frame 320 is perforated in which the rotary shaft 340 is inserted It has in the center, the two fixed frames (321, 324) in contact with the upper plate 310, and is connected in the longitudinal direction perpendicular to both ends of the fixed frame (321, 324), spaced apart from the upper plate 310 by a predetermined distance And two moving guide parts 322 and 323 which provide a space for the moving shaft 330 to move.

As described above, the movement guide parts 322 and 323 support the fixed frames 321 and 324 supporting the upper plate 310, and the moving shaft 330 is along the guide part 322 to the fixed frame 321. To move in the horizontal direction.

The moving shaft 330 has perforations at positions opposite to the perforations of the fixed frames 321 and 324. At this time, the female screw is formed in the perforations in the moving shaft 330.

This is a configuration to change the position of the moving shaft 330 according to the rotation of the rotating shaft 340 having a thread.

In addition, the moving shaft 330 has a linear bearing is installed inside the sphere coupled to the guide portion 322 to help the smooth movement of the moving shaft 330.

Its configuration is shown in FIG. The linear bearing 332 is embedded in a portion where the movable shaft 330 and the guide portion 322, 323 contact each other so that the movable shaft 330 can easily move along the guide portions 322 and 323. This rotation makes the movement smooth.

In addition, both sides of the moving shaft 330 is provided with a rotary connection portion 331 is coupled to one side of the above-mentioned X-shaped support 350 so that the coupling portion with the X-shaped support 350 can rotate.

In addition, both sides of the fixing frame 324 is provided with a rotation connection portion 325 coupled to the other side of the X-shaped support 350 to be rotatable.

In each of the four rotary connectors 331 and 325 shown in the figure, the upper left side of the X-shaped support 350 is coupled to the rotary connector 331, and the upper right side is coupled to the rotary connector 325.

7 is a detailed configuration diagram showing the combination of the lower support 370 and the X-shaped support 350, as shown in the side of one side end of the lower support 370 is the X-shaped support 350 The rotatable connecting portion 371 is rotatably connected, and the X-shaped support 350 is rotatable in the same manner as the rotatable connecting portion 324 provided by the fixing frame 321, and X cannot be moved left and right. The mold support 350 may be fixed.

In addition, the lower support 370 has a leg 372 at the bottom, and when installed, the lower support 370 itself is spaced apart from the ground by a predetermined distance, and moves along the spaced lower support 370. It has a moving ring portion 373.

The moving ring portion 373 is provided with a linear bearing inside the same as the moving shaft 330, the outer side is provided with a rotary connecting portion 374, the lower left structure of the X-shaped support 350 Connect.

In such a configuration, the right part of the X-shaped support 350 is fixed in a rotatable state, and the left part is coupled in a rotatable and movable left and right structure.

In such a state, the user loads a print object on the upper plate 310 and rotates the rotary shaft 340 to appropriately set the distance between the print object and the print head unit 200.

That is, when the rotating shaft 340 is rotated, the moving shaft 330 is moved by the action of the female screw formed in the drilling of the screw thread and the moving shaft 330.

In this way, the horizontal movement movement of the moving shaft 330 is converted into vertical movement by the X-shaped support 350 fixed to one side, it is possible to move the print object located on the upper plate 310 to a suitable height. Will be.

As described above, the configuration of the transfer unit 300 applied in the present invention has a simple configuration as compared with the prior art, which can lower the price of the industrial inkjet printer, thereby securing the competitiveness of the product.

In addition, it is easy to install, maintain and repair, thereby reducing management costs.

The above configuration is an embodiment, and may be configured in a structure in which both sides of the X-shaped support 350 move.

The print head unit 200 automatically operates by selecting or detecting a user when a print object is loaded at an appropriate position by a user operation as described above.

First, when the motor 280 operates to drive the timing belt 230, the print head 240 moves, and prints on the print object.

The print head 240 may print while moving in a direction perpendicular to the moving direction of the timing belt 320 in the configuration of the nozzle.

In addition, the configuration of the timing belt 230 and the pulley 220 is shown in detail in Figures 8a to 8c. FIG. 8A has a continuous protrusion at a portion of the timing belt 230 that is in contact with the pulley 220, and the pulley 220 has a groove corresponding to the protrusion.

8B shows that the protrusions of the timing belt 230 are not continuous but are serrated, and FIG. 8C is a cross-sectional view taken along the line AA ′ of FIGS. 8A and 8B, and is suitable for the pulley 220. Grooves are formed to prevent the timing belt 230 from loosening and to facilitate driving.

9A and 9B are a plan view and a side view of the shaft fixing bracket 291 for fixing the rotation connecting shaft 290 connecting one side of the timing pulley 220, as shown in the shaft fixing bracket ( The groove 292 in which the screw is fixed is formed in an elliptical shape in 291, so that the fine adjustment of the position is possible, and it is comprised so that the tension of the timing belt 230 may be adjusted.

In addition, a circular bearing is formed in the coupler 293 to which the rotary connecting shaft 290 is coupled, so that the rotary connecting shaft 290 can be easily rotated.

Both ends of the rotation connecting shaft 290 are connected to the timing pulley 220, which serves to fix / support the separation distance between the timing belts 230.

In addition, the configuration for supporting the moving printer head 240 uses the LM guide 250 excellent in its rigidity. This increases the rigidity compared to the conventional bar frame can secure a more stable printer structure.

The SM guide 250 is coupled to the lower elastic support 260, the elastic support 260 is coupled to the case 100 is fixed to the guide support 270 having a protruding structure.

This coupling reinforces its support when the printer head 240 is moved, and gives the printer head 240 proper elasticity so that a smooth print can be made.

The SM guide 250 may be coupled to the elastic support 260, and may be used by directly connecting the elastic support 260 to the case 100.

FIG. 10 is a detailed coupling structure diagram of the LM guide 250 and the printer head 240. The LM guide block is located above the LM guide 250 and is movable on the LM guide 250 as shown in FIG. 251; The upper portion of the LM guide block 251 is provided with a larger area, and the printer head 240 is coupled to the surface, the coupling portion 252 is coupled to the timing belt 230 at both ends.

The LM guide block 251 is moved along the LM guide 250, the coupling portion 252 is coupled to the upper portion. The timing belt 230 is connected to both ends of the coupling part 252 in the moving direction, and when the motor 280 drives to drive the timing belt 230, the coupling part 252 and the lower part of the LM guide. Block 251 moves together.

At this time, the printer head 240 is coupled to the side of the coupling unit 252 so that the printer head 240 can be transferred in the longitudinal direction.

As described above, the industrial inkjet printer of the present invention has an effect of securing the stability of the print operation by more stably supporting a path in which the print head moves using the L guide.

In addition, the timing belt for moving the printer head and the portion contacting the pulley for supporting the drive of the timing belt have a groove and a protrusion structure inserted into the groove to prevent the timing belt from being peeled off, and thus the driving of the belt is more effective. It can be made, there is an effect that the driving stability is improved.

In addition, by simplifying the structure for adjusting the height of the printed object, there is an effect that can lower the price of the industrial inkjet printer.

Claims (5)

A print head unit which transfers the print head to perform printing on a print object; In the industrial inkjet printer consisting of a transfer unit for adjusting the height according to the thickness of the printing object, The print head unit includes a bracket installed at an inner edge of the printer case, a timing pulley attached to the bracket to support the timing belt, a printer head moving in accordance with the driving of the timing belt, and an LS supporting the movement of the printer head. A guide and a drive motor for driving the timing belt, The transfer part is joined to one side of the top plate on which the printing object is placed, a bottom surface of the top plate, the ㅁ type guide frame for supporting the top plate, and the ㅁ type guide frame, which is movable in the longitudinal direction of the guide frame. A rotation axis inserted into a perforation penetrating through a moving axis, a width direction axis of the K-shaped guide frame and a center portion of the moving shaft, and a rotation axis for moving the moving axis along two longitudinal axes of the K-shaped guide frame by rotation; Two X-shaped supports coupled to each other so as to be rotatably coupled to the corner sides of the K-shaped guide frame, a central support interconnecting the central portions of the two X-shaped supports, and the X on the lower side of the two X-shaped supports. Combine one side of the type support to rotate and move, the other side is rotatable, the movement is impossible Industrial inkjet printer, characterized in that consisting of a lower support to be fixed to combine. The industrial inkjet printer of claim 1, wherein the LM guide is directly fixed to the printer case, or fixed to an elastic guide and an L guide support fixed to the case. The industrial inkjet printer according to claim 1, wherein a groove is formed in the timing pulley, and a timing belt which is in contact with the timing pulley has a protrusion inserted into the groove. The industrial inkjet printer of claim 1, wherein the rotating shaft includes a screw thread, and a female thread is formed in the perforation of the moving shaft to which the rotating shaft is inserted. The industrial inkjet printer of claim 1, wherein the moving shaft and the ㅁ -type guide frame are movably connected to each other, and the X-support and the lower support are connected to each other so that a linear bearing is installed.