JPH048000B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention applies pressure bonding in an overlapping state such as overlapping a plurality of sheets of envelope paper, postcard paper, etc., or folding one sheet of paper over each other. This invention relates to a crimp seal device.

[Prior art] In the manufacturing process of multiple folding (bifold, trifold, etc.) envelopes, postcards, etc., their forms (paper)
A crimp seal device is used to crimp the

FIG. 6 is a partially cutaway front view of the conventional crimp seal device 1. As shown in FIG. This crimp seal device 1 is
The lower pressure roller side plates 3 are fixed to both sides of the pedestal 2, the lower pressure rollers 4 are supported on both lower pressure roller side plates 3, and the upper pressure rollers 4 are attached to the upper end surface of each lower pressure roller side plate 3 by bolts 6 via spacers 5. A roller bearing stand 7 is fixed, and an upper pressure roller 8 is supported on both upper pressure roller bearing stands 7. The crimp seal device 1 is
The rotational force of a drive motor (not shown) is transmitted to the lower pressure roller 4 via the chain 9 and the sprocket 10, and the rotational force transmitted to the lower pressure roller 4 is transmitted to the gears 11, 1.
2 to the upper pressure bonding roller 8. As a result, when a plurality of foams (having adhesive properties such as heat-resistant pressure-sensitive adhesive applied in advance) are supplied in an overlapping state into the gap between the two pressing rollers 4 and 8 which are in a rotating state, they are When the foam passes through both pressure rollers 4 and 8, it is pinched and bonded, thereby being bonded.

By the way, in the conventional pressure sealing device 1, an optimum gap a is set between the pressure rollers 4 and 8 according to the paper thickness of the forms, the number of stacked sheets, etc., so that the forms can be properly crimped. These foams can be pressurized with optimal pressure.

[Problems to be Solved by the Invention] However, in the conventional pressure sealing device 1 described above, when the paper thickness of the form, the number of stacked sheets, etc. are changed, the bolt 6 is removed and the spacer 5 is replaced. It is necessary to replace the spacer 5 and install a new spacer 5 having a thickness b in order to form the changed optimum gap a.

That is, in order to be able to adjust the pressing 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 5 having different thicknesses. In addition, replacing the spacer 5 requires the use of tools and the removal of the pressure roller, which takes time. Therefore, it is very difficult to quickly and easily adjust the crimping force in, for example, an office where the crimping seal device 1 is installed.

For this reason, in conventional offices, etc., there is no need to adjust the crimping force of the crimping seal device 1, and multiple crimping seals are installed specifically for each type of foam, which can accommodate changes in the paper thickness of the foam, the number of stacked sheets, etc. We will prepare device 1.

An object of the present invention is to quickly and easily adjust the pressure bonding force.

[Means for Solving the Problems] The present invention provides a crimping sealing device that supplies and presses a foam in an overlapping state between a pair of crimping rollers supported on a pedestal, and crimps the foam. A gap adjusting wedge is provided between the pressure roller support portion and the pedestal, and a wedge driving means for moving the wedge is provided.

[Function] According to the present invention, when the paper thickness of the form, the number of stacked sheets, etc. are changed, the wedge is moved by an appropriate amount using the wedge driving means, so that the gap between the pressure rollers can be adjusted to the optimum pressure force. It can be adjusted to the optimum gap needed to obtain the required clearance. Thereby, the pressure bonding force can be adjusted quickly and easily.

[Example] Fig. 1 is a partially cutaway front view of the first embodiment of the present invention, Fig. 2 is a side view of Fig. 1, and Fig. 3 is a schematic diagram showing the relationship between the sensor cam and the origin sensor. It is.

The pressure seal device 20 has upper pressure roller side plates 22 fixed to both sides of a pedestal 21, and a first,
The second and third upper pressure rollers 24 (24A to 24
C) is supported.

The pressure sealing device 20 also has a lower pressure roller base 26 attached to the pedestal 21 via a gap adjustment wedge 25.
A lower pressure roller bearing stand 27 is fixed to each of three positions on both sides of the lower pressure roller base 26, and a bearing 2 is attached to each lower pressure roller bearing stand 27, respectively.
8 to the first, second, and third lower pressure rollers 29
(29A-29C) are supported.

Note that the lower pressure bonding roller base 26 is provided with a pedestal 21.
Spring receiving part 3 of spring receiving bolt 30 planted in
1 is stored, and a spring 32 is interposed between the spring receiving portion 31 of the bolt 30 and the lower pressure roller base 26.
A gap adjustment wedge 25 is held between the lower pressure roller base 26 and the pedestal 21 under pressure. Wedge 2
The hole provided in 5 and through which the bolt 30 passes is a long hole portion 33 that is long in the direction of movement of the wedge 25.

Further, the lower pressure bonding roller base 26 is guided by a pedestal 21 on both sides in the roller axis direction, and guided by a screw shaft housing 34 and a guide plate 35 fixed to the pedestal 21 on both sides in the direction perpendicular to the roller axis. Ru. Further, the bearings 28 mounted on both sides of the lower pressure roller 29 are inserted into the bearing stand 27 as described above, and are guided by the vertical wall surface of the window 36 provided in the upper pressure roller side plate 22. It's summery.

The feed screw shaft 3 is connected to the screw shaft housing 34 fixed to the frame 21 as described above through a bearing 37.
8 is supported, and the feed screw shaft 38 is screwed into a nut 39 fixed to the end face of the gap adjusting wedge 25. On the other hand, a rotation angle control motor (stepping motor, pulse motor, servo motor, etc.) 41 is attached to the pedestal 21 via a mounting plate 40.
The rotation of the motor 41 is transmitted to the feed screw shaft 3 via a toothed pulley 42, a toothed belt 43, and a toothed pulley 44.
It is now possible to convey this to 8 people. That is, the feed screw shaft 38 is rotated by the operation of the rotation angle control motor 41.
When driven, the gap adjustment wedge 25 moves to the frame 21.
and the lower pressure roller base 26, and moves up and down the set level of the lower pressure roller base 26 with respect to the pedestal 21, thereby adjusting the gap between the upper pressure roller 24 and the lower pressure roller 29.

Note that the gap adjustment wedge 25 is equipped with a sensor dog 45.
An origin sensor 47 and a rising end sensor 48 are provided on the pedestal 21 via a mounting plate 46. Further, the rotation angle control motor 41 is provided with a sensor cam 49, and the pedestal 21 is provided with an origin sensor 50. 49A is a sensor cam slit.

Further, the crimp sealing device 20 has a control device 51 and a form type setting device 52. Control device 5
1 is the input/output section 53, CPU 54, RAM 55,
It starts from ROM56.

Here, the crimping sealing device 20 has a state in which the origin sensor 47 is turned on by the sensor dog 45 provided on the gap adjustment wedge 25 described above, and the origin sensor 50 is turned on by the sensor cam 49 provided in the rotation angle control motor 41, and the lower crimping roller 29 As the descending origin of
The state in which the rising end sensor 48 is turned on by the sensor dog 45 is defined as the rising end of the lower pressure bonding roller 29.
In addition, in the pressure sealing device 20, the gap between the upper pressure roller 24 and the lower pressure roller 29 when the lower pressure roller 29 is at the lowering origin is actually measured, and is stored in the ROM 56 of the control device 51 as the maximum gap c. .

The ROM 56 of the control device 51 stores in advance the optimum gap a necessary to obtain the optimum pressure bonding force for each type of foam, depending on the thickness of the foam, the number of stacked sheets, etc. As a result, when the type of foam to be crimped this time is set in the foam type setting device 52, the control device 51 determines the position of the lower crimping roller 29 based on the optimum gap a for the foam and the maximum gap c described above. The current ascending control amount d from the descending origin is calculated by d = c - a, the rotation amount of the rotation angle control motor 41 that matches this ascending control amount d is digitally set, and the motor 41 is controlled with this rotation amount.
to drive and control. As a result, the motor 41 moves the gap adjustment wedge 25 by an appropriate amount via the feed screw shaft 38, adjusts the gap between both the pressure rollers 24 and 29, and places the form to be crimped this time between the pressure rollers 24 and 29. Create the optimal gap necessary for proper crimping.

The pressure sealing device 20 transmits the rotational force of a drive motor (not shown) to a chain 57 and each lower pressure roller 2.
The rotational force is transmitted to each lower pressure roller 29 via a sprocket 58 provided at 9, and the rotational force transmitted to each lower pressure roller 29 is transmitted to the opposing upper pressure roller 24 via gears 59 and 60.

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

When a plurality of adhesive forms, such as heat-resistant pressure-sensitive adhesive applied in advance, are supplied in a stacked state into the gap between the two press rollers 24 and 29 in a rotating state, these forms are bonded together by both press rollers 24 and 29. roller 2
4, 29, it is pinched and bonded, and bonded.

At this time, in the crimp seal device 20,
When the type of foam to be crimped this time is set in advance in the foam type setter 52, the control device 51 uses the aforementioned control operation to set the optimum gap between the two crimping rollers 24 and 25 necessary to properly crimp the foam. The rotation angle control motor 41 is driven and controlled to form a gap between the two. As a result, the gap adjustment wedge 25 is moved by an appropriate amount via the feed screw shaft 38, and both pressure rollers 2
The gap 4,29 is automatically digitally set to the optimum gap described above.

That is, according to the first embodiment, when the paper thickness of the form, the number of stacked sheets, etc. are changed, the wedge 25 is moved by an appropriate amount using the rotation angle control motor 41 as the wedge driving means, so that both sides can be changed. The gap between the pressure rollers 24 and 29 can be automatically adjusted to the optimum gap necessary to obtain the optimum pressure force. This results in
Pressure force can be adjusted quickly and easily.

FIG. 4 is a sectional view showing the main parts of the second embodiment of the present invention, and FIG. 5 is a schematic diagram showing the relationship between the sensor cam, the origin sensor, and the sensor dog and each sensor.

The crimp sealing device 70 of the second embodiment differs from the crimp sealing device 20 described above only in that the gap adjusting wedge 25 is driven by a manual handle 71. That is, the manual handle 71 is fixed to the feed screw shaft 38 in the crimp sealing device 20, and by driving the feed screw shaft 38 by rotating the handle 71, the wedge 25 is moved. The upper pressure roller 2 is moved up and down by moving the pressure roller base 26 up and down.
4 and the lower pressure roller 29 can be adjusted to the optimum gap a.

Here, the sensor dog 7 is attached to the gap adjustment wedge 25.
2 are provided on the pedestal 21 via a mounting plate 73, an origin sensor 74, an A sensor 75, a B sensor 76,
A C sensor 77 is provided. Further, a sensor cam 78 is provided on the manual handle 71, and a sensor cam 78 is provided on the manual handle 71.
1 is provided with an origin sensor 79. 78A
is the sensor cam slit.

Therefore, in the crimp seal device 70, when setting the gap to A, the wedge 25 is moved using the manual handle 71, the sensor dog 72 turns on the A sensor 75, and the sensor cam 78 turns on the origin sensor 7.
9, a lamp (not shown) corresponding to the gap A is lit and the gap setting is completed. Gap B,
The same applies to C.

That is, even in this second embodiment, when the paper thickness of the form, the number of stacked sheets, etc. are changed,
By moving the wedge 25 by an appropriate amount using a manual handle 71 serving as a wedge driving means, the gap between the pressure rollers 24 and 29 can be manually adjusted to the optimum gap necessary to obtain the optimum pressure force. Thereby, the pressure bonding force can be adjusted quickly and easily.

In the practice of the present invention, each of the gap a1 of the first pressure roller pair, the gap a2 of the second pressure roller pair, and the gap a3 of the third pressure roller pair is defined as a1>
It may be set so that a2>a3.

Further, the present invention is widely applicable to both devices including a single pair of pressure rollers and devices including a plurality of pairs of pressure rollers. In an apparatus including a plurality of pressure roller pairs, the gap between each pressure roller pair may be individually adjustable.

Furthermore, of the upper and lower pressure rollers, the upper pressure roller side may be moved up and down by a wedge, or both the upper and lower pressure rollers may be moved up and down by wedges.

Further, in carrying out the present invention, the wedge driving means includes a stroke control cylinder device that is supported by a frame and moves the wedge, and a control device that drives and controls the stroke control cylinder device based on the amount of gap that should be provided between the pressure rollers. It may consist of.

[Effects of the Invention] As described above, according to the present invention, the pressure bonding force can be adjusted quickly and easily.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of the first embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a schematic diagram showing the relationship between the sensor cam and the origin sensor, and FIG.
The figure is a sectional view showing the main parts of the second embodiment of the present invention, FIG. 5 is a schematic diagram showing the relationship between the sensor cam and the origin sensor, and the sensor dog and each sensor, and FIG. 6 is a front view showing the conventional example. . 20... Crimp seal device, 21... Frame, 24... Upper crimping roller, 25... Gap adjustment wedge, 29... Lower crimping roller, 38... Feed screw shaft, 41... Rotation angle control motor, 51... Control device, 70... Crimp seal Device, 71...manual handle.

Claims (1)

[Scope of Claims] 1. In a crimping sealing device that supplies and presses a foam in an overlapping state between a pair of crimping rollers supported by a pedestal and crimps the foam, at least one crimping roller support part and the pedestal are connected to each other. 1. A crimp sealing device, characterized in that a gap adjusting wedge is provided between the two, and a wedge driving means for moving the wedge is provided. 2. In claim 1, the wedge driving means has a gap to be provided between a feed screw shaft supported by a frame and screwed onto the wedge, a rotation angle control motor for driving the feed screw shaft, and a pressure roller. A crimp seal device comprising a control device that drives and controls a rotation angle control motor based on the amount of rotation. 3. In claim 1, the wedge driving means includes a stroke control cylinder device that is supported by a pedestal and moves the wedge, and a control that drives and controls the stroke control cylinder device based on the amount of gap to be provided between the pressure roller. A crimp sealing device consisting of a device.