JPH03205263A - Automatic sticking device for double coated adhesive tape - Google Patents

Abstract

PURPOSE:To surely attach an adhesive layer over the whole surface even if an attached surface is curved, by pressing an adhesive layer by a pressing surface formed from a low adhesive material, after an attachment objective article on which only a cut adhesive layer is attached is transported. CONSTITUTION:In an attaching device 1, a double coated adhesive tape 8 which is pulled out from a holding roll 6 in the state where only an adhesive layer 8b is cut to a prescribed length advances to a contact position with a pressing pad 10, and the double coated tape 8 is pressed on a sticking objective article 13. When the pressing pad 10 rises, only the cut adhesive layer 8b is attached. Then, a jig 14 and the sticking objective article 13 are shifted, and stopped at a prescribed position, and the adhesive layer 8b is pressed by a pressing member 19. Then, the pressing surface is formed from a low adhesive material into the curved surface corresponding to the attached surface of the sticking objective article 13, and the adhesive layer 8b is pressed over the whole surface with sufficient force by the pressing by a pressing part with elasticity, and the sticking objective article 13 can be surely attached.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an automatic application device for double-sided tape.

[Prior Art] As an apparatus for attaching only the adhesive layer of a double-sided tape, in which an adhesive layer is removably attached to one side of release paper, to an object to be attached,
The present applicant has proposed ``Automatic cutting and pasting device for double-sided tape'' in Japanese Patent Application No. 63-174434. This pasting device is
The release paper is advanced through a predetermined path from a holding roll that holds a roll of double-sided tape, and in the middle of this path, only the adhesive layer of the double-sided tape is cut to a predetermined length, and the adhesive layer is removed. Cut grooves are made at predetermined intervals on the chisel, and then the release paper side is pressed against the object to be pasted with a pressure pad, and when the release paper is pulled up, only the cut adhesive layer sticks to the object to be pasted. It was possible. Then, only the remaining release paper was wound up with a take-up roll.

[Issue to be solved] According to the conventional device described above, the adhesive layer can be reliably attached when the surface to be attached to the object to be attached is flat, but it is difficult to attach the adhesive layer to a curved surface. there were.

Even if the pressing surface of the pressing pad is a curved surface that faces the surface to which it is applied, there is a risk that the corners of the adhesive layer will peel off when the release paper is pulled up. It has been difficult to prevent the corners of the adhesive layer from turning up due to the adhesive strength between the release paper and the adhesive layer and the fact that the release paper is partially bent due to the curved surface to which it is applied.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic double-sided tape application device that can reliably apply an adhesive layer to the entire surface of an object, even if the surface to which it is applied is a curved surface.

[Means for Solving the Problems] The automatic double-sided tape applying device according to the present invention is characterized in that an adhesive layer is removably adhered to one side of a release paper, and only the adhesive layer is cut in advance to a predetermined length. A pasting device that affixes only the cut adhesive layer to the target object by pressing the double-sided tape on the target object from the release paper side, and a pasting device that affixes only the cut adhesive layer to the target object by pressing the double-sided tape from the release paper side to the target object. It is equipped with a conveying device that conveys the adhesive to the target position, and a pressing device that presses the adhesive layer with sufficient pressure over the entire surface after the object to be pasted is conveyed, and whose pressing surface is made of a low-adhesive material. It's there.

[Function] According to the present invention, even if the corners of the adhesive layer are peeled off from the object to be applied, as in the conventional case, the adhesive layer is reliably adhered over the entire surface by being pressed by the pressing device. Since the pressing surface of this pressing device is formed of a low-adhesive material, there is no fear that the adhesive layer will adhere to the pressing surface.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the double-sided tape automatic pasting device according to the present invention includes a pasting device 1, a conveying device 2, a pressing device 3,
It is composed of a base 4 that supports them.

The pasting device 1 is similar to the device disclosed in Japanese Patent Application No. 174434/1988 entitled ``Automatic cutting and pasting device for double-sided tape''. That is, a holding roll 6 and a winding roll 7 are rotatably provided on a substrate 5 that stands on a base 4. The double-sided tape 8 is wound into a roll and held on the outer periphery of the holding roll 6.

The double-sided tape 8 pulled out from the outer periphery of the holding roll 6 is
It is guided by guide rollers 9a, 9b, 9c, 9d, and 9e, passes through a predetermined path, and is wound onto a winding roll 7. The take-up roll 7 is rotated with a constant torque, and when the take-up roll 7 is rotated, the double-sided tape 8 is sequentially pulled out from the outer periphery of the holding roll.

As shown in FIG. 3, the double-sided tape 8 has an adhesive layer 8b removably adhered to one side of a release paper 8a, and cut grooves are cut into only the adhesive layer 8b at predetermined intervals using a cutting means (not shown). 8C is carved, and the adhesive layer 8b is cut into a predetermined length. After being cut, the double-sided tape 8 moves along a predetermined path, and in the middle of the path, the release paper 8a is applied to the pressure pad 10.
The sides are touching. In this embodiment, the pressure pad 10
is located between the rollers 9C and 9d, and can be moved forward and backward relative to the double-sided tape 8 in contact with it by a driving means (not shown).

Next, the conveyance device 2 will be explained. Side plate 11 on base 4
a and llb are standing upright, and a belt 12 is located between them. The belt 12 is wound around two pulleys (not shown) and driven to rotate. A jig 14 on which a cylindrical pasting object 13 is installed is attached to the belt 12, and the jig 14 moves integrally with the belt 12.

The transport device 2 is provided with positioning means 15 and 16 at two locations. The first positioning means 15 is for stopping the jig 14 so that the object to be pasted 13 is held at a position facing the pressing pad of the pasting device 1 described above. A first stopper 15a for positioning the belt 12 of the jig 14 in the traveling direction, a cylinder 15b for moving this stopper back and forth, and a first stopper 15a for positioning the belt 12 of the jig 14 in the traveling direction.
It consists of a second stopper 15c for positioning in the width direction and a cylinder 15d for moving this stopper back and forth.

The second positioning means 16 uses a jig 14 to hold the pasting target 13 at a position facing the pressing device 3, which will be described later.
This is to stop the

Similarly to the first positioning means 15, a first stopper 1 for positioning the jig 14 in the belt 12 traveling direction is provided.
6a and a cylinder 16b, and a second stopper 16c and cylinder 16d for positioning the jig 14 in the width direction of the belt 12.

Next, the pressing device 3 will be explained. A mounting plate 17 is fixed onto the base 4 on the downstream side of the pasting device 1. A cylinder 18 is attached to the mounting plate 17, and the cylinder shaft 18a passes through the mounting plate 17 and projects downward, and a pressing member 1'9 is fixed to the tip thereof. As shown in FIG. 2, the pressing member 19 includes a main body 19a made of plastic or the like, and a pressing part 19b made of an elastic member such as rubber.
A material with low pressure adhesion such as a Teflon sheet is fixed to the pressing portion 19b to form a pressing surface 19c. The pressing surface 19c is formed so as to be in contact with the surface to be pasted of the object 13 to be pasted.

A double-sided tape pasting operation using the double-sided tape automatic pasting apparatus configured as above will be explained below.

First, the belt 12 of the conveying device 2 is driven to move the jig 14 and the object to be pasted 13 attached to the jig. Then, the jig 14 is stopped at a predetermined position by the first positioning means 15.

On the other hand, in the sticking device 1, the double-sided tape 8 pulled out from the holding roll 6 is cut into a predetermined length by a cutting means (not shown) with only the adhesive layer 8b being cut into a predetermined length (as shown in the third figure), and the pressure pad 1o Proceed to the position where it comes into contact with. Then, the pressure pad 10 is lowered, and the double-sided tape 8 is pressed against the target object 13 held in a predetermined position. At this time, as shown in the fourth figure, the release paper 8 of the double-sided tape 8
Pressed from the a side via the pressure pad 10, the adhesive layer 8b
is in contact with the pasting object 13. Then, when the pressure pad 10 is lifted, as shown in FIG. 5, the release paper 8a is lifted together with the pressure pad 10 due to tension, and only the cut adhesive layer 8a is stuck to the object 13 to be pasted. At this time, it is difficult to reliably adhere the entire surface of the adhesive layer 8a, and as shown in FIG. 6, parts of the adhesive layer 8a, such as corners, often come off.

Next, the stoppers 15a, 15 of the first positioning means 15
b is released, the jig 14 and the object to be pasted 13 are moved again, and the second positioning means 16 stops the jig 14 at a predetermined position.

Then, the cylinder 18 is actuated, and the pressure member 19 presses the adhesive layer 8b stuck to the object 13 to be pasted. The pressing surface 19c is formed into a curved surface that is in contact with the surface to be pasted of the pasting object 13, and the pressing part 19b presses with elasticity, so that the adhesive layer 8b is pressed with sufficient pressure over the entire surface, and the pasting object 13 is pressed with sufficient pressure. Be sure to adhere to the

Thereafter, the cylinder 18 moves the pressing member 19 upward away from the object 13 to be pasted. Since the pressing surface 19c is made of a material with low adhesiveness, there is no possibility that the adhesive layer 8b will stick to it. Therefore, the adhesive layer 8b is reliably adhered to the object to be pasted over the entire surface.

Through the above steps, the automatic application of double-sided tape is completed. In addition, in order to perform the series of operations smoothly, the advancing speed of the double-sided tape 8, the pressing pad 10, and the pressing member 1 are adjusted.
9. The timing of the operation of the positioning members 15 and 16 is set as appropriate.

Further, the detailed configuration is not limited to this embodiment. For example, an elastic belt-like member is provided as a pressing device, the object to be pasted is pressed against this belt, and the adhesive layer is applied to the object to be pasted by the tension of the belt. It can also be configured to press against an object.

The pressing surface of the pressing pad 1o is not limited to the shape that faces the object to be pasted 13, but may be a flat surface.

The present invention has the greatest effect when the surface to be pasted of the object to be pasted is a curved surface, but even when the surface to be pasted is flat, the adhesive layer can be more reliably pasted and is effective. It is.

[Effects] As described above, according to the present invention, the adhesive layer of the double-sided tape can be reliably attached to the object over the entire surface,
Furthermore, since the structure is simple, it can be easily added to existing double-sided tape automatic cutting and pasting devices.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a partially enlarged view showing a pressing member, and FIG. 3 is an enlarged view of a double-sided tape.
4 and 5 are cross-sectional views illustrating the process of applying the double-sided tape to an object, and FIG. 6 is an enlarged cross-sectional view taken along the line A--A in FIG. l... pasting device, 2... conveyance device, 3...
Pressing device, 8... Double-sided tape, 8a... Release paper, 8b... Adhesive layer, 1 3 Pasting object, 1 9 C Pressing surface. that's all

Claims (3)

[Claims] (1) A double-sided tape with an adhesive layer releasably attached to one side of release paper and only the adhesive layer cut into a predetermined length is pressed onto the object from the release paper side. a pasting device for pasting only the cut adhesive layer on the object to be pasted; a conveying device for conveying the object to be pasted to a predetermined position after the adhesive layer has been pasted; An automatic double-sided tape characterized in that it is equipped with a pressing device that presses the adhesive layer with sufficient pressure over the entire surface after the object is conveyed, and the pressing surface is made of a low-adhesive material. Pasting device. (2) The double-sided tape automatic pasting device according to claim 1, wherein the object to be pasted has a curved surface on which the adhesive layer is pasted. (3) The double-sided tape automatic pasting device according to claim 2, wherein the pressing surface is formed into a curved surface that is in contact with the curved surface of the pasting object.