JPH09150471A - Tack form-producing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a tack form by simple work bonding release paper to only a part of a form and to easily correspond to even to a form different in size. SOLUTION: A self-adhesive 22 is applied to a continuous running form 21 at every part and continuous release paper 23 is sent out at a speed slower than the running speed of the form 21 in matching relation to the passing period of the coated part of the self-adhesive 22 on the form by a release paper feed means 131 and fragile parts 231 are provided to the release paper 23 by a fragile part forming means 132. The leading end part of the release paper 23 is pressed to the coated part of the self-adhesive 22 by a release paper pressing means 134 while the rear side from the forming region of the foremost fragile part 231 of the release paper 23 is grasped by the release paper grasping means 133. At this time, the continuous release paper 23 is cut off at the foremost fragile part 231 by the difference between the running speed of the continuous form 21 and the sending-out speed of the release paper 23. The pressing of the release paper 23 is controlled only during a period when the coated part of the self-adhesive 22 passes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tack foam manufacturing apparatus, and more particularly to an apparatus for preparing tack foam by forming a tack seal at a specific position of each foam of a continuous foam.

[0002]

2. Description of the Related Art Some forms used as output forms for computers have various forms depending on the intended use. Among them, for example, as shown in FIG. 2 and FIG. 3, there are tack forms (FIG. 2 is a plan view, FIG.
Is a sectional view taken along the line AA of FIG. 2). The tack form 20 shown in the figure is a continuous form 21 having marginal punch holes 212 on both side edges.
1. The adhesive 22 is applied to a part of the back surface of No. 1 and the release paper 23 is attached thereon, while the adhesive 22 of the continuous foam 21
The tack seal 25 is formed by making a notch 24 from the surface side in the application portion. In this tack form 20, the tack seal 25 is provided in each form 21.
It is formed only in a part of 1.

As an apparatus for applying the adhesive 22 to only a part of the foam 211 and attaching the release paper 23 thereon as described above, for example, there is one shown in FIG. The tack foam manufacturing apparatus 30 shown in the figure has a spraying means 31 equipped with a mechanism for spraying the adhesive 22 and a release paper 23 cut in a predetermined size one by one to be sucked one by one on the circumferential surface. And a release paper sticking roller 32 that holds the release paper sticking roller 32 on the continuous foam 21 by the spraying means 31 to apply the adhesive 22 onto the continuous foam 21 at the time of use. By pressing the release paper 23 on the circumferential surface, the release paper sticking roller 32 sticks the release paper 23 onto the continuous form 21 one by one.

[0004]

According to the tack form manufacturing apparatus 30 described above, in the step of attaching the release paper 23, the release paper 23 previously separated is attached to the release paper attaching roller 32.
Since it is necessary to suck one sheet at a predetermined position of,
There is a problem in that the operation is complicated, and when the size of the form 211 is different, the release paper sticking roller 32 needs to be replaced accordingly.

The present invention has been made to solve the above problems, and an object of the present invention is to simplify the work of sticking release paper only on a part of the foam in the release paper sticking step. An object of the present invention is to provide a tack foam manufacturing apparatus that can be used and can easily cope with foams of different sizes.

[0006]

A tack foam manufacturing apparatus according to the present invention made to solve the above problems is an apparatus for manufacturing a tack foam by forming a tack seal on a continuous foam, which is continuous. Adhesive applying unit for applying an adhesive to each part of each continuous foam running to, and a release paper applying unit for applying release paper to the adhesive applying part on the continuous foam, The paper sticking unit has a release paper feeding means for feeding continuous release paper at a speed slower than the running speed of the continuous foam in accordance with the passage time of the adhesive coated portion on the continuous foam, and the continuous release paper is fragile. A fragile portion forming means for providing a portion, a release paper gripping means for gripping the rear side of the earliest fragile portion forming site, and a release paper on the adhesive coated portion only during the passage of the adhesive coated portion. A release paper pressing means for pressing the release paper, and while the release paper pressing means performs an operation of pressing the release paper on the adhesive-coated portion of the continuous form, the running speed of the continuous form and the delivery of the release paper. It is characterized in that the continuous release paper is cut off at the fragile portion due to the difference in speed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A continuous foam is continuously run, and in a pressure-sensitive adhesive application unit, a pressure-sensitive adhesive is applied to each part of each of the continuous foams and is sent to a release paper sticking unit. In the release paper sticking unit, the continuous release paper is fed at a speed slower than the running speed of the continuous foam by the release paper feeding means in accordance with the passage time of the adhesive coated portion on the continuous foam, and by the weak portion forming means. The continuous release paper is provided with a fragile portion. The front end of the release paper fed out is pressed onto the adhesive-applied portion of the continuous foam by the release paper pressing means, while the back side of the earliest fragile portion forming portion of the release paper is gripped by the release paper gripping means. deep. At this time, since the running speed of the continuous foam is faster than the delivery speed of the release paper, the leading edge of the release paper is pulled in the advancing direction of the continuous foam together with the adhesive-coated part, which causes the continuous release paper to be the first brittle. Separated in the department. The pressing of the release paper is controlled so that it is performed only during the passage of the adhesive-coated portion on the continuous foam. It should be noted that the scope of the present invention also includes a mode of performing intermittent operation in which the release paper is repeatedly fed and stopped in accordance with the passage time of the adhesive-coated portion on the continuous foam.

[0008]

In the device of the present invention, the continuous release paper is cut off at the fragile portion during the application of the release paper onto the continuous foam. Since it is not necessary to separate the release paper, the handling of the release paper is not complicated, and the sticking work can be performed easily. Further, when the sizes of the foams are different, the speed of feeding the release paper may be controlled accordingly, and therefore it is possible to easily cope with the foams of different sizes without exchanging the parts for attaching the release paper. be able to.

[0009]

The present invention will be described below with reference to examples. FIG.
FIG. 1 is a schematic diagram showing an embodiment of a tack foam manufacturing apparatus of the present invention. Tack form manufacturing apparatus 10 shown in FIG.
Is a form 2 of a continuous form 21 that runs continuously.
It has a pressure sensitive adhesive application unit 12 that applies a pressure sensitive adhesive 22 to each part of 11, and a release paper affixing unit 13 that affixes a release paper 23 to the pressure sensitive adhesive 22 application portion on the continuous foam 21. In addition, in this embodiment, in FIG.
The case where the tack foam 20 shown in FIG.

The continuous foam 21 is designed to continuously run in the apparatus 10 by the continuous foam running means. The continuous foam running means is the inverter motor 11
1 and pin belts 112a and 112b having pins that engage with the marginal punch holes of the continuous foam 21. The inverter motor 111 uses a belt to press the impression cylinder 1
23, the impression cylinder 123 is further connected to the pin belt 112.
It is connected to each of a and 112b, and the continuous foam 21 is continuously run by continuously rotating the inverter motor 111.

A rotary encoder 141 is connected to the inverter motor 111. The inverter motor 111, the impression cylinder 123, and the rotary encoder 141
Are all connected by a toothed belt and rotate synchronously. The rotary encoder 141 has a fixed number of pulses for the traveling distance of the continuous foam 21 (for example, 36 pulses for every 1 inch of the continuous foam 21 travels). )
Is generated and sent to a control unit (not shown). The control unit detects the traveling speed and the traveling distance of the continuous foam 21 based on this pulse signal.

An adhesive 22 is applied to the continuous foam 21 in the adhesive application unit 12. The adhesive application unit 12 includes an adhesive tank 12 that supplies an adhesive 22.
1, a plate cylinder 122 in which a plate 122a for transferring the adhesive 22 is provided on the circumferential surface of a cylindrical body, and the plate 122 described above.
It has the impression cylinder 123 which presses down the continuous foam 21 on a, and when the continuous foam 21 passes between the plate 122a and the impression cylinder 123, the adhesive 22 is applied onto the continuous foam 21.

As the plate cylinder 122, one having a circumference equal to the size (length; usually 8.5 to 12 inches) of each foam 211 of the continuous foam 21 is used, and depending on the size of the foam 211. It is exchangeable. The plate 122a has the same shape as the portion of the foam 211 intended to be coated with the adhesive 22. According to this plate cylinder 122, it is easy to keep the position and shape of the adhesive 211 applied to each foam 211 constant. Instead of the plate cylinder 122, a spraying device similar to the conventional example shown in FIG. 4 may be used.

A release paper 23 is attached to a portion of each foam 211 coated with the adhesive 22 in the release paper attaching unit 13. The release paper sticking unit 13 has a release paper feeding means, a weak portion forming means, a release paper gripping means, and a release paper pressing means.

As the release paper feeding means, a feed roller 13 is used.
1 is used, whereby the release paper 23 is fed from the unwinding roll 135. The feed roller 131 is
A stepping motor (not shown) rotates the stepping motor so that the release paper 23 is intermittently supplied in response to a signal from the controller in accordance with the passage time of the portion of the continuous foam 21 coated with the adhesive 22. Feeding roller 1
31 is rotated. The control unit uses the rotary encoder 14
Based on the running distance (or running speed) of the continuous foam 21 detected from the pulse signal from 1, the timing at which the adhesive 22-applied portion of the continuous foam 21 reaches the release paper sticking unit 13 and the time required for the passage are calculated. The stepping motor is rotated according to the timing and the passing time to control the feeding and stopping of the release paper 23 for a predetermined length.

A cutter 132 is used as the fragile portion forming means. Before the release paper 23 is sent to the portion of the continuous foam 21 to which the adhesive 22 is applied, the release paper 23 is vulnerable as a fragile portion 231 by the cutter 132. Perforations are inserted in the width direction. Since the release paper 23 is sent out by the feed roller 131 by a predetermined length, the release paper 23 has perforations for each predetermined length.

A pressing roller 1 is used as the release paper gripping means.
33 is used. When the tip of the release paper 23 reaches the portion where the adhesive 22 of the continuous foam 21 is applied, the pressing roller 133 can grip the release paper 23 behind the earliest fragile portion 231 forming portion ( In FIG. 1, it is provided slightly above the site where the weakest part 231 is formed first. The pressing roller 133 is controlled so as to rotate and stop in synchronization with the feed roller 131, and while the release paper 23 is being fed out, the release roller 23 is released together with the feed roller 131.
Is rotated in the feeding direction, and while the release paper 23 is stopped, the rotation is stopped and the release paper 23 is pressed, whereby the rear side of the earliest fragile portion 231 formation site is grasped,
The first fragile portion 231 forming portion is set in a free state. In addition,
The release paper gripping means 133 is installed at the first fragile portion 23.
Since it must be on the rear side of the first forming portion and on the front end side of at least the second weak portion forming portion, it is adjusted according to the length (per sheet) of the release paper 23.

A swinging roller 13 is used as the release paper pressing means.
No. 4 is used, and this swinging roller 134 presses the release paper 23 on the adhesive 22 coated portion while the adhesive 22 coated portion of the continuous foam 21 passes. The rocking roller 134 is supported so as to be able to reciprocate in the circumferential direction around the fulcrum 134a, and while the oscillating roller 134 receives a signal from the control unit, while the adhesive 22-applied portion of the continuous foam 21 passes through, Release paper 2 that overlaps the part where the adhesive 22 is applied
3 is pressed onto the pressure sensitive adhesive 3, and after passing through the portion coated with the adhesive 22, the continuous foam 21 is separated. As in the case of the feed roller 131, the control unit calculates the timing at which the adhesive 22 coated portion of the continuous foam 21 reaches the swing roller 134 and the time required for passing the same, and adjusts the timing and the passing time in accordance with the timing. It controls the pressing and releasing of the rocking roller 134.

While the operation of pressing the release paper 23 onto the portion coated with the adhesive 22 is being performed, the feed roller 1
31 is stopped, and the delivery of the release paper 23 is also stopped. At this time, as described above, in the release paper 23, the rear side of the earliest fragile portion 231 formation site is gripped by the pressing roller 133, while the tip end of the release paper 23 is pressed onto the adhesive 22 applied portion and attached. Therefore, the continuous foam 21 is pulled in the traveling direction. As a result, the release paper 23 is separated from the first fragile portion (perforation) 231.

After the release paper 23 is attached to the portion of the continuous foam 21 to which the adhesive 22 is applied as described above, that portion is a cutter plate (provided in the device 10 or a device different from the device 10). (Not shown), the cutter plate makes a notch 24 from the surface side of the continuous foam 21 (the surface opposite to the surface on which the release paper 23 is attached), and the tack seal 2
5 is formed, and the tack foam 20 as shown in FIGS. 2 and 3 is obtained.

In this embodiment, the case where the release paper is delivered intermittently has been illustrated, but the release paper may be delivered continuously. However, in this case, the delivery speed of the release paper (that is, the rotation speed of the feed roller and the pressing roller) is calculated by the formula: [release paper delivery speed] = [continuous foam running speed] ×
It must be set by [Release paper length] / [Form length]. When operating the device,
If you set it so that the tip of the release paper comes to the adhesive application part of the continuous foam first, the release paper feed speed calculated as above will be kept constant, and the rest will be automatically released. Paper is fed into place on each form. The supplied release paper is sandwiched between the adhesive application part of the foam and the rocking roller, and is pulled in the moving direction of the continuous foam due to the difference between the delivery speed of the release paper and the running speed of the continuous foam. Separated from the parts and affixed to the foam.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment of a tack foam manufacturing apparatus of the present invention.

FIG. 2 is a plan view showing an example of a tack form.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a schematic view showing an example of a conventional tack foam manufacturing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Tack foam manufacturing apparatus 12 ... Adhesive application unit 121 ... Adhesive tank 122 ... Plate cylinder 122a ... Plate 123 ... Impression cylinder 13 ... Release paper sticking unit 131 ... Release paper feed means (feed roller) 132 ... Vulnerable part formation means (Cutter) 133 ... Release paper gripping means (pressing roller) 134 ... Release paper pressing means (swing roller) 134a ... Support point 135 ... Unwinding roll 141 ... Rotary encoder 20 ... Tack form 21 ... Continuous form 211 ... Form 212 ... Marginal Punch hole 22 ... Adhesive 23 ... Release paper 231 ... Fragile part (perforation) 24 ... Notch 25 ... Tack seal

Claims (1)

[Claims] 1. An apparatus for producing a tack foam by forming a tack seal on a continuous foam, comprising: a pressure-sensitive adhesive application unit for applying a pressure-sensitive adhesive to a part of each foam of the continuously running continuous foam; And a release paper sticking unit for sticking a release paper to the pressure-sensitive adhesive application portion on the continuous foam, wherein the release paper sticking unit is a continuous release paper according to the passage time of the pressure-sensitive adhesive application portion on the continuous foam. Release paper feeding means for sending out at a speed lower than the running speed of the continuous foam, fragile portion forming means for providing a fragile portion to the continuous release paper, and release paper for gripping the rear side from the earliest fragile portion forming site. It has a gripping means and a release paper pressing means for pressing the release paper onto the pressure sensitive adhesive coated portion only while the pressure sensitive adhesive applied portion passes, and the release paper pressing means has a pressure sensitive adhesive on the continuous foam. The feature is that the continuous release paper is cut off at the fragile portion due to the difference between the running speed of the continuous foam and the delivery speed of the release paper while the operation of pressing the release paper onto the agent application portion is performed. Tuck foam manufacturing equipment.