JPH0262293A - Sealing apparatus - Google Patents

Abstract

PURPOSE:To enable quick and easy adjustment of a roller holding force by a small motive power by interposing rolling members between a gap adjusting wedge and a roller supporting element and between the gap adjusting wedge and a frame, respectively, and by moving the gap adjusting wedge. CONSTITUTION:When the paper thickness of a form, the number of superposed sheets thereof or the like is altered, a wedge 15 is moved in a proper amount by a rotational angle control motor 31 as a wedge driving means, and thereby a gap between two pressure contact rollers 14 and 19 can be adjusted automatically to be an optimum gap necessary for obtaining an optimum pressure contact force. Thereby the adjustment of the pressure contact force is conducted quickly and easily. On the occasion, cylindrical rolls 200 are interposed between the wedge 15 and a frame 11 and between the wedge 15 and a lower pressure contact roller base 16, respectively. Accordingly, the wedge 15 moves between the frame 11 and the roller base 16 through a rolling contact area. By this constitution, the adjustment of a holding pressure by the roller couple can be attained by a small motive power.

Description

[Detailed Description of the Invention] [Industrial Application Field J] The present invention is applicable to applications such as overlapping objects to be sealed such as multiple sheets of envelope paper, postcard paper, etc., or folding one object to be sealed. The present invention relates to a sealing device that joins under overlapping conditions.

[Conventional technology]

2. Description of the Related Art In the manufacturing process of multi-fold (bi-fold, tri-fold, etc.) envelopes, postcards, etc., a sealing device is used to join these forms (sheets) together.

Conventional sealing devices forcibly drive both rollers that are supported by a pedestal and constitute a roller pair, and the objects to be sealed are fed between these rollers in an overlapping state and pressed together to join the objects. become).

The conventional sealing device described above sets the optimum gap g between the rollers depending on the paper thickness of the form, the number of sheets to be joined, etc. With clamping force.

These forms can be pressurized.

[Problems to be Solved by the Invention] However, in the conventional sealing device described above, when the number of stacked sheets per paper thickness of the form is changed, the relationship between the roller support part on the pedestal side and the roller bearing is changed. It is necessary to replace the spacer interposed between the rollers and install a new spacer with a thickness necessary to form the optimum gap g between the rollers.

That is, in order to be able to adjust the clamping force in response to changes in the paper thickness of the form, the number of stacked sheets, etc., it is necessary to prepare several types of spacers with different thicknesses. In addition, it takes two hours to replace the spacer because it requires the use of tools and the removal of the rollers. Therefore, it is very difficult to quickly and easily adjust the clamping force in, for example, an office where the sealing device is installed.

For this reason, in conventional offices, etc., instead of adjusting the squeezing force of the sealing device, multiple sealing devices are used specifically for each type of foam, which can accommodate changes in paper thickness of 2 ohms, number of stacked sheets, etc. Either preparations are being made, or changes and adjustments are being made, although the above-mentioned drawbacks still exist.

Therefore, one of the present applicants proposed a patent application filed in 1982-175 with the aim of quickly and easily adjusting the a-ra clamping force.
proposed a crimp seal device described in No. 999. This crimping seal device is designed to provide a crimping seal in which a foam is supplied in an overlapping state between a pair of crimping rollers supported on a pedestal, and the foam is crimped. A gap adjusting wedge is provided between the device and the pedestal, and a wedge driving means for moving the wedge is provided.

The present invention further improves the invention disclosed in Japanese Patent Application No. 82-175999, and aims to quickly and easily adjust the roller clamping force using a small amount of power.

[Means for Solving the Problems] The present invention forcibly drives both rollers that are supported by a pedestal and constitutes a roller pair, and supplies the object to be sealed in an overlapping state between the two rollers and pinches the object. In a sealing device for joining objects to be sealed, a gap adjustment wedge for adjusting the gap between both rollers is disposed between at least one roller support and the pedestal, and the gap between the gap adjustment wedge and the roller support and the gap are A rolling member is interposed between each of the adjusting wedges and the frame, and wedge driving means for moving the gap adjusting wedges is provided.

[Function] According to the invention, when the paper thickness of the form, the number of stacked sheets, etc. are changed, by moving the wedge by an appropriate amount using the wedge driving means, the gap between the two rollers can be adjusted to obtain the optimum clamping force. It can be adjusted to the optimum gap required. Thereby, the clamping force can be adjusted quickly and easily.

At this time, in the uninvention, a rolling member is mounted between the wedge and the roller support portion and between the wedge and the frame. Therefore, the wedge moves between the roller support part and the pedestal via the rolling contact area, and the above-mentioned clamping force yJ adjustment by the roller pair can be achieved with a small power.

[Example] Fig. 1 is a partially cutaway front view of a crimp seal device according to an embodiment of the present invention, Fig. 2 is a side sectional view of Fig. 1, and Fig.
The figure is a schematic diagram showing a drive system for a pair of rollers.

The pressure sealing device 10 has upper pressure roller side plates 12 fixed to both sides of a pedestal 11, and first and second roller side plates 12 are fixed to each side of a pedestal 11 at three positions along the flow direction of the material to be sealed on the circumferential upper pressure roller side plates 12 via bearings 13, respectively. Second. Third upper pressure roller 14 (14A~
14C).

The crimping sealing device 10 also supports a lower crimping roller base 16 on a pedestal 11 via a gap adjustment wedge 15, and crimps the lower crimping roller base 16 at each of three positions along the flow direction of the object to be sealed on both sides of the lower crimping roller base 16. The roller bearing stand 17 is fixed, and a bearing 18 is attached to each lower pressure roller bearing stand 17.
via the first, second . Third lower pressure roller 19 (19A
~19c) is supported.

That is, the pressure sealing device 10 has upper pressure rollers 14A to 14C and a lower pressure roller 19A at each of three positions along the flow direction of the object to be sealed on the pedestal 11.
~19C constitutes a pair and constitutes the first to third
Three pairs of rollers 100 (100A to 100C) are provided.

Here, the pressure sealing device 10 has a cylindrical roller 200 (
A rolling member) is inserted. 201 is a cage for holding the weight.

As will be described in detail below, the pressure sealing device 10 sets the gap between the upper and lower rollers 14 and 19 in each roller pair 100 to the optimum gap g necessary to obtain the optimum pressure force to the foam as the object to be sealed. , upper and lower hundred rollers 14.
19 is forcibly driven, and the foam is supplied in an overlapping state between the two rollers 14 and 19, and the foam is pressed and bonded.

Hereinafter, first, the upper and lower rollers 14 in each roller pair 100
．． The gap adjustment mechanism No. 19 will be explained.

That is, as shown in FIGS. 1 and 2, the crimp sealing device MIO stores the spring receiver part 21 of the spring retainer pole 20 embedded in the frame 11 in the lower crimp roller base 16, and A spring 22 interposed between the spring receiving portion 21 and the lower pressure roller base 16 holds the gap adjustment wedge 15 mounted between the lower pressure roller base 16 and the frame 11 under pressure. The hole provided in the wedge 15 and through which the bolt 20 passes is a long hole portion 23 that is long in the direction of movement of the wedge 15.

The lower pressure bonding roller base 16 has both sides in the roller axis direction guided by the pedestal 11, and screw shafts 24 each fixed to the pedestal 11 on both sides in the direction perpendicular to the roller axis.
．． It is guided by each of the guide plates 25. Further, the bearings 18 mounted on both sides of the lower pressure roller 19 are mounted on the bearing stand 17 as described above, and are guided by the vertical wall surface of the window 26 provided on the side plate 12 of the upper pressure roller. ing.

A feed screw shaft 28 is supported via a bearing 27 in the screw shaft housing 24 which is fixed to the pedestal 11 as described above.
The feed screw shaft 28 is screwed into a nut 29 fixed to the end face of the gap adjusting wedge 15. On the other hand, a rotation angle control motor (stepping motor, pulse motor, servo motor, etc.) 31 is attached to the pedestal 11 via a mounting plate 30. The rotation of the motor 31 is controlled by a toothed pulley 32, a toothed belt 33, and a toothed pulley 34. It is configured to be transmitted to the feed screw @28 via. That is, when the feed screw shaft 28 is driven by the operation of the rotation angle control motor 31, one gap adjustment is performed. Move the setting level of the pressure roller base 16 up and down,
As a result, the upper pressure roller 14 in each roller pair 100
The gap between the roller and the lower pressure roller 19 can be adjusted.

Note that 1. Gap adjustment <A sensor dog 35 is provided on the rust 15, and an origin sensor 37 is provided on the pedestal 11 via a mounting plate 36.
A rising end sensor 38 is provided. Further, the rotation angle control motor 31 is provided with a sensor cam 39 having three / ), and the pedestal 11 is provided with an origin sensor 40 .

Further, the crimp sealing device 10 has a meter control device 41 and a form type setting device 42. The control device 41 is the input/output section 4
3. It consists of a CPU 44, a RAM 45, and a ROM 46.

Here, the crimping sealing device 10 is operated by the lower crimping roller when the origin sensor 37 is turned on by the sensor dog 35 provided on the above-mentioned gap adjustment wedge 15 and the origin sensor 40 is turned on by the sensor cam 39 provided on the one-rotation angle control motor 31. 19
(2) A state in which the rising end sensor 38 is turned on by the sensor dog 35 is the rising end of the upper and lower pressing rollers 19.

In addition, in the pressure sealing device 10, the lower pressure roller 1
The gap between the pressure roller 14 and the lower pressure roller 19 when the pressure roller 9 is at the descending origin is actually measured, and is stored in the ROM 46 of the control device M41 as the maximum gap C.

L KA L Te, control equipment! ! The 41 ROMs 46 correspond to the paper thickness, number of stacked sheets, etc. of each form. The optimum gap g required to obtain the optimum pressure bonding force is stored in advance. As a result, when the type of foam to be crimped this time is set in the foam type setting device 42, the control device 41 determines the width of the lower crimping roller 19 based on the optimum gap g for the foam and the maximum gap C described above. The current ascending control amount d from the descending origin is calculated as d=c−g.

The amount of rotation of the rotation angle control motor 31 that matches this increase control amount d is set digitally, and the amount of rotation of the motor 31 is set with this amount of rotation.
to drive and control. As a result, the motor 31 moves the gap adjusting wedge 15 by an appropriate amount via the feed screw shaft 28, and adjusts the amount of gap between the re-crimping rollers 14.19 in each roller pair lOO. This time, create the optimal gap necessary to properly crimp the crimped form.

Next, in each roller pair 100, the lower roller 14.
The forced drive mechanism No. 19 will be explained.

As shown in FIG. 3, the crimp seal device 10 is
A drive pulley 48 provided on the drive motor 47 and a driven pulley 49 (49A to 49C) provided to each lower pressure roller 19 (19A to 19G) constituting each roller pair 100 (100A to 100C). , an endless chain 50 is wound around. 51 and 52 are idle pulleys. As a result, the crimp seal device 5110
The rotational force of the drive motor 47 is transmitted to each lower pressure bonding roller 19,
The rotational force transmitted to each lower pressure roller 19 is transferred to a gear 53 provided on the lower pressure roller 19 of each roller pair 100. The information is then transmitted to the opposing upper pressure roller 14 through a gear 54 provided on the upper pressure roller 14 . In addition, the third
In the figure, 300 is a form.

Next, the operation of the above embodiment will be explained.

According to the above embodiment, when the paper thickness 1 of the form 1 and the number of stacked sheets are changed 2, the re-pressing roller 1419 is moved by moving the wedge 15 by an appropriate amount using the rotation angle control motor 31 as a wedge driving means. Automatically adjust the gap to the optimum gap necessary to obtain the optimum crimp force! can. Thereby, the y4 adjustment of the pressing force can be performed quickly and easily.

At this time, in the above embodiment, <the rust 15 and the frame 11
A cylindrical roller 200 is interposed between the wedge 15 and the lower pressure roller base 16. Therefore, the rust 15 is transmitted to the frame 1 through the rolling contact area.
1 and the roller base 16, and the above-mentioned adjustment of the clamping force by the pair of rollers can be achieved with a small amount of power.

Note that in implementing the present invention, the rolling member may be a ball.

Further, in the practice of the present invention, the drive means for the gap adjusting wedge may be a manual handle connected to the feed screw shaft 28 as in Japanese Patent Application No. 82-17599!11.

Note that the object to be sealed to which the present invention is applied can be applied to objects having any bonding characteristics, such as those having adhesive properties due to heat or those having adhesive properties only due to pressure.

[Effects of the Invention] As described above, according to the present invention, the roller clamping force can be adjusted by
It can be done quickly and easily with a small amount of power.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a crimp seal device according to an embodiment of the present invention, FIG. 2 is a side sectional view of FIG. 1, and FIG.
The figure is a schematic diagram showing a drive system for a pair of rollers. DESCRIPTION OF SYMBOLS 10... Pressure sealing device, 11... Frame, 14... Upper pressure roller 15... Gap adjustment wedge, 19... Lower pressure roller, 28... Feed screw. 31... Rotation angle control motor 200... Cylindrical roller (rolling member). Agent Patent Attorney Osamu Shiokawa Figure 1 Figure 2

Claims (1)

[Claims] (1) In a sealing device that forcibly drives both rollers that are supported by a pedestal and constitute a roller pair, and supplies an object to be sealed between the two rollers in an overlapping state and presses it to join the object to be sealed, A gap adjustment wedge for adjusting the gap between both rollers is provided between at least one of the roller supports and the pedestal, and a gap adjustment wedge is provided between the gap adjustment wedge and the roller support and between the gap adjustment wedge and the pedestal. A sealing device characterized in that a rolling member is interposed and a wedge driving means for moving a gap adjusting wedge is provided.