KR100657551B1 - Making Device of Adhesion-tape Add to Silicon Sheet - Google Patents

Abstract

The present invention relates to a silicone adhesive tape manufacturing apparatus for maintaining the overall material properties of the silicone adhesive tape used as a sealing member uniformly to increase the efficiency of the sealing and at the same time automated with a certain quality, according to this feature A typical configuration may include: a silicon sheet supply unit which releases and transfers one end of a silicon sheet including a fourth release paper wound on a first supply roll on one side of the main body, and peels the fourth release paper from the silicon sheet in the process; A double-sided tape supply unit which releases and transfers one end of the double-sided tape including the second release paper and the third release paper wound on the second supply roll provided on the other side of the main body, and removes the third release paper from the double-sided tape in the process; One side of the silicon sheet and the double-sided tape is aligned and bonded between the pressing rollers arranged in at least two or more pairs over a predetermined period, and the double-sided tape including the silicon sheet and the second release paper is stretched in the section. A pressing part formed to rotate the pair of pressing rollers at the same speed with each other so that there is no physical action; A winding unit for winding the silicone bonding tape including the second release paper formed through the pressing unit to prevent the transfer of tensile force to the pressing unit; And a controller controlling driving of the silicon sheet supply unit, the double-sided tape supply unit, the crimping unit, and the winding unit.

Description

Silicone Adhesive Tape Manufacturing Equipment {Making Device of Adhesion-tape Add to Silicon Sheet}

1 is an exploded perspective view illustrating an assembly relationship of a liquid crystal display device as an example to which a silicone adhesive tape of the present invention is applied.

FIG. 2 is a cross-sectional view for explaining the structure of the liquid crystal display device and the assembled state of these structures with reference to the II-II line shown in FIG.

FIG. 3 is a cross-sectional view showing a silicon adhesive tape of a part III shown in FIG.

Figure 4 is a perspective view for explaining the packaging state of the silicon sheet supplied.

5 is a view for explaining a conventional silicon adhesive tape manufacturing process.

6 is a configuration diagram for explaining the configuration of the silicon adhesive tape manufacturing apparatus according to an embodiment of the present invention and the installation relationship of these configurations.

The present invention relates to an apparatus for producing a silicone adhesive tape, which maintains the overall material properties of the silicone adhesive tape used as a sealing member uniformly to increase the efficiency of the sealing and at the same time allow automation to a certain quality.

In general, the sealing member is used to partition the two sides by partition means with respect to the outer periphery of the groove or the hole, so that there is no exchange of various fluids including air between these separated areas.

One of the application examples of the above-described sealing member mentioned in the present description is to keep the airtightness of the space partitioned by these members by closely contacting two members which face each other and face to face at a constant interval, It will be described with respect to the condition that the absence of 부합 satisfies the condition for free separation with respect to the other.

On the other hand, referring to the liquid crystal display device of Korean Utility Model Registration No. 275583 as a specific example, as shown in Fig. 1, a frame 10 having a certain shape made of synthetic resin material is placed, and the upper center of the frame 10 is located. The mounting groove 12 is formed in the site. The light guide plate 18 having the reflective paper 16 is mounted on the seating groove 12. In addition, the outer periphery of the light guide plate 18, that is, the outer edge of the seating groove 12 forms a step 14 having a predetermined width, and the liquid crystal panel 20 is mounted on the step 14 from above. As a result, the light guide plate 18 and the liquid crystal panel 20 are close to each other at a slight interval. At this time, it is required that the inflow of various particles from the outside is fundamentally blocked between the light guide plate 18 and the liquid crystal panel 20.

On the other hand, the sealing member 22 is provided on the frame 10 corresponding to the step 14 described above, that is, the bottom edge of the liquid crystal panel 20. The conventional technology of the sealing member 22 is a liquid silicone resin. It is formed by applying a predetermined width and thickness to form a border shape.

However, the sealing member 22 formed of the silicone resin is not constant in width and thickness, and takes a long time to harden as the sealing member 22 in the liquid phase, and the foreign matter on the surface of the liquid crystal panel 20. The non-contact area is generated, which causes a problem that the sealing efficiency is reduced. In addition, in the application of the liquid silicone resin, the site where the application and the end of the application of the silicone resin is generally overlapped with each other, and this portion is formed with a thick or insufficient thickness as compared to other sites, and is also sealed. This results in a decrease in efficiency.

For this reason, the sealing member 22 currently applied, as shown in FIGS. 2 and 3, cuts the silicon sheet 22d manufactured to a constant thickness to a constant width, and the stepped portion of the frame 10 is disposed on the bottom surface thereof. (14) A double-sided tape 22a, 22b, 22c to be adhered to the surface is affixed to prepare a silicone adhesive tape. The double-sided tapes 22a, 22b and 22c described above are composed of at least two layers. Among the layers of the double-sided tapes 22a, 22b, and 22c, the layer facing the step 14 of the frame 10 is made of a synthetic resin material and a common acrylic adhesive tape 22a having high adhesion efficiency, and a silicon sheet ( The layer facing 22d) is made of a silicone-based adhesive tape 22c having high adhesion efficiency to a silicon material. Further, a synthetic resin layer 22b such as polyester is formed between the acrylic adhesive tape 22a and the silicone adhesive tape 22c so as to be in close contact with each other. As described above, the double-sided tapes 22a, 22b, and 22c formed of a plurality of layers have a characteristic that the thickness is small and the deformation is small with respect to the tensile force, unlike the silicon sheet 22d.

The silicon adhesive tape thus prepared is attached to be connected to each other along the circumference of the stepped portion 14 of the frame 10 so as to seal the corresponding portion.

Here, the prior art according to the manufacturing of the above-described silicon adhesive tape will be described.

First, the silicone sheet 22d constituting the silicone adhesive tape has a constant thickness, width, and length, as shown in FIG. 4, and is provided in a state where one surface is covered by a fourth release paper 24d and wound around a roll. . At this time, the edge portion of the silicon sheet 22d is exposed to various foreign matters through the gap between the fourth release papers 24d and is subsequently cut and removed in the manufacturing process of the silicon adhesive tape.

In addition, the double-sided tapes 22a, 22b, and 22c bonded to the silicone sheet 22d each include a second release paper 24b for protecting the adhesive force between the surface of the acrylic adhesive tape 22a and the silicone adhesive tape 22c. It is provided in the state covered by the 3rd release paper 24c, and wound by the roll.

And the further structure provides the 1st release paper 24a which provides the base base for processing the above-mentioned silicon sheet 22d and double-sided tape 22a, 22b, 22c.

Thus, as shown in FIG. 5, the process of manufacturing the silicon adhesive tape from the state where the silicon sheet 22d, the double-sided tapes 22a, 22b, 22c, and the first release paper 24a are prepared, first, the operator releases the first release paper. The upper surface of the first release paper 24a is placed on a flat position such as a surface plate, and the second release paper 24b covering the acrylic adhesive tape 22a of the double-sided tapes 22a, 22b, 22c is peeled off thereon. To the adhesive surface of the acrylic adhesive tape (22a) as a whole. Afterwards, the worker peels off the third release paper 24c to expose the adhesive surface of the silicone adhesive tape 22c of the double-sided tapes 22a, 22b, and 22c, and cuts the film to a predetermined length with the fourth release paper 24d thereon. The silicon sheet 22d is sequentially placed on the set alignment position. Subsequently, the worker is hermetically bonded so that there is no bubble between the silicone adhesive tape 22c and the silicone sheet 22d. The silicon-bonded tape obtained through this process is kept in a wrapped state between the first release paper 24a and the fourth release paper 24d until it is transferred to a process of cutting into a predetermined shape, and then the fourth release paper ( 24d) is peeled off and processed into a silicon adhesive tape of a desired shape. In addition, the processed silicon adhesive tape is separated into a specific shape by a cutting process from the first release paper 24a by a worker in the process of being applied as a sealing member, and then bonded to the surface of the object such as the frame 10 described above. .

The manufacturing process of the silicone adhesive tape described above has a pre-modern problem, which is summarized as follows.

First, the process of aligning and adhering the double-sided tape peeled off the second release paper with respect to the first release paper, and again aligning the silicon sheet cut to a certain width and length peeled off the third release paper thereon so as to be in close contact therewith without bubbles therein. As the process and the series of peeling off the fourth release paper are performed by the worker, there is a problem in that the worker's careful surroundings and the hassle and many working hours are required, resulting in increased productivity and labor cost.

Second, a minute bubble may exist between the silicon sheet and the double-sided tape to be bonded, such a bubble has a problem that acts as a defect tolerance to reduce the sealing efficiency by reducing the degree of adhesion to the object surface as a sealing member.

Third, the silicone sheet is a material having flexibility and elasticity. When the non-uniform tensile force is applied in the process of closely contacting the silicone sheet with respect to the double-sided tape, the shape of the sealing member may be bent or deformed. Compared with the thinner form, it causes defects in the sealing, which causes a problem of degrading the quality of the manufactured product.

Fourth, when a time delay between adhering the double-sided tape and the silicon sheet is delayed, various foreign matters exist between them, and these foreign matters have a problem of lowering the sealing efficiency of the product and product defects.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, to automate a series of processes of bonding double-sided tape and silicon sheet, and to maintain a uniform sealing efficiency as a sealing member to prevent the formation of bubbles therebetween. In addition, the present invention provides a silicon adhesive tape manufacturing apparatus that can increase productivity and reduce labor costs by performing automation to significantly reduce annoyance and work time of workers.

In addition, another object of the present invention is to provide an apparatus for producing a silicon adhesive tape to prevent deformation of the silicon sheet in response to external physical forces.

Characteristic configuration of the silicone adhesive tape manufacturing apparatus according to the present invention for achieving the above object, unwind and transfer one end of the silicon sheet including the fourth release paper wound on the first feed roll on one side of the main body, in the process A silicon sheet supply portion for removing the fourth release paper from the sheet; A double-sided tape supply unit which releases and transfers one end of the double-sided tape including the second release paper and the third release paper wound on the second supply roll provided on the other side of the main body, and removes the third release paper from the double-sided tape in the process; One side of the silicon sheet and the double-sided tape is aligned and bonded between the pressing rollers arranged in at least two or more pairs over a predetermined period, and the double-sided tape including the silicon sheet and the second release paper is stretched in the section. A pressing part formed to rotate the pair of pressing rollers at the same speed with each other so that there is no physical action; A winding unit for winding the silicone bonding tape including the second release paper formed through the pressing unit to prevent the transfer of tensile force to the pressing unit; And a controller controlling driving of the silicon sheet supply unit, the double-sided tape supply unit, the crimping unit, and the winding unit.

Hereinafter, a silicon adhesive tape manufacturing apparatus and a method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 6 is a schematic view illustrating a configuration of a silicon adhesive tape manufacturing apparatus and an installation relationship between the components according to an embodiment of the present invention, and detailed description of the same parts as in the related art will be omitted.

As shown in FIG. 6, the apparatus for manufacturing a silicon adhesive tape according to the present invention includes a main body 32 having a predetermined size, and the main body 32 has a silicon sheet supply part 40 and a double-sided tape supply part 50. And a controller 80 for controlling the driving of the crimping unit 60, the winding unit 70, and each of these components.

Here, the above-mentioned silicon sheet supply part 40 is provided in one side of the main body 32, as shown in FIG. 6, The 1st supply in which the silicone sheet 22d containing the 4nd release paper 24d was wound up. The roll 42 is mounted. On the main body 32 adjacent to the first feed roll 42, the fourth release paper 24d and the silicon sheet 22d, which are unrolled from the first feed roll 42, advance to the same physical material as the fourth release paper 24d. A loosening roller 44 is provided to relax the back surface to be contacted by rotating by contact with a force and to be stored in a state wound on the first feed roll 42 to relieve resistance to bending. In addition, the fourth release paper 24d and the silicon sheet 22d that pass through the loosening roller 44 are passed therebetween by at least one or more feed rollers 46 arranged in succession. At this time, the supply roller 46 may be made of a configuration for transmitting the vibration to the silicon sheet 22d passed through the intermittent rotation is stopped under the control of the controller (80). In the process of passing through the feed roller 46, the above-described fourth release paper 24d is separated and guided and continuously peeled off from the surface of the silicon sheet 22d, and the fourth release paper 24d thus peeled off is the first recovery roller. It is directed to 34a and wound up. In addition, the silicon sheet 22d having passed through the silicon sheet supplying portion 40 has a resistance in a state in which the state compressed by the above-described supply roller 46 is restored to the shape while being wound on the first supply roll 42. In order to alleviate this remaining, the surface of the silicon sheet 22d is passed through the buffer section S so that the silicon sheet 22d is held at an angle.

On the other hand, the double-sided tape supply unit 50 described above uses the second release paper 24b and the third release paper 24c on the other side of the main body 32, that is, on the upper side or the lower side facing the traveling direction of the silicon sheet 22d. The 2nd feed roll 52 by which the double-sided tape 22a, 22b, 22c which were included is wound is attached by a conventional method. On the advancing direction of the double-sided tapes 22a, 22b, 22c successively connected to the second supply roll 52, the third release paper 24c covering the silicone adhesive tape 22c having the adhesive force to the silicon sheet 22d is peeled off and separated. And the 2nd collection roller 34b which winds this up is provided.

As described above, the double-sided tapes 22a, 22b, and 22c including the silicone sheet 22d from which the fourth release paper 24d is peeled off and the second release paper 24b from which the third release paper 24c is peeled off are pressed into the crimping portion 60. You are guided to.

The above-mentioned crimping portion 60 is at least two over a predetermined period with respect to the advancing direction of the double-sided tapes 22a, 22b, 22c including the silicon sheet 22d and the second release paper 24b, which are guided and conveyed to the alignment position. The pressing rollers 62 which consisted of the above pairs are arrange | positioned. As shown in FIG. 6, these pressing rollers 62 are crimped | bonded by the silicone sheet 22d which progresses aligned between them, and the one surface of the double-sided tapes 22a, 22b, 22c. At this time, the double-sided tapes 22a, 22b, and 22c including the silicon sheet 22d and the second release paper 24b in the sections formed by the pressing rollers 62 are maintained by the pressing force by the pressing rollers 62. As a result, the tensile force from the outside does not act, and the idle rollers 64 for preventing sagging of the double-sided tapes 22a, 22b, and 22c including the silicon sheet 22d and the second release paper 24b are disposed between these sections. It is arranged in plural numbers. As described above, in order to prevent the tensile force against the double-sided tapes 22a, 22b, and 22c including the silicon sheet 22d and the second release paper 24b, the silicon sheets to which the above-mentioned pressing rollers 62 are bonded to each other ( 22d) and the double-sided tapes 22a, 22b, 22c including the second release paper 24b can be made mechanically or electromagnetically controlled so as to be uniform, or the diameters of the pressing rollers 62 are the same size. And all of them can be rotated in conjunction with the same speed. Here, for convenience of the above-mentioned pressing rollers 62, the silicon sheet 22d and the double-sided tapes 22a, 22b, and 22c are introduced into the first pressing roller, and the silicon sheet 22d and the double-sided tape 22a are used. , 22b, 22c are adhered to the silicon sheet 22d and double-sided tapes 22a, 22b, 22c passing through them when the second compression roller is used as the second compression roller in the last position advancing to the winding part 70. It will be preferable that the first pressing roller is formed of the second pressing roller or more.

On the other hand, the above-mentioned winding part 70 is a double-sided tape including the silicon sheet 22d and the second release paper 24b in a state of being bonded to each other by passing through the crimping part 60 under the control of the controller 80 ( 22a, 22b, 22c), that is, the silicone bonding tape is wound with a constant torque, and at this time, the crimp for inducing the presser 60 to pass through the motor 72 for rotating the take-up roller 76 in the take-up part 70. The roller 62, that is, the tension detection sensor 74 is used to wind with a force equal to or less than the pressing force of the second pressing roller. From this, the controller 80 receives the signal of the tension sensor 74 to control the driving of the winding unit 70.

In addition to the above-described configuration, as described above, the controller (at the front end position of the crimping portion 60 in which the double-sided tapes 22a, 22b, 22c including the silicon sheet 22d and the second release paper 24b flow in) is formed. According to the control of 80) it can be made by further installing an air shower 100 to supply or suck air at a constant pressure to block the inflow of foreign matter.

According to the present invention, a series of processes for bonding the double-sided tape and the silicone sheet are continuously performed in a short time at a uniform force and speed, thereby significantly creating bubbles between the silicone sheet and the double-sided tape and the possibility of contamination by various foreign substances. This reduces the stabilization of the sealing efficiency as a sealing member, thereby significantly reducing the user's trouble and work time, thereby increasing productivity and reducing labor costs.

Although the present invention has been described in detail only with respect to specific embodiments, it will be apparent to those skilled in the art that the present invention may be modified or changed within the scope of the technical idea of the present invention, and such modifications or changes may be made by the present invention. It will belong to the claims.

Claims (7)

A silicon sheet supply unit which releases and transfers one end of the silicon sheet including the fourth release paper wound on the first supply roll on one side of the main body, and peels the fourth release paper from the silicon sheet in the process; A double-sided tape supply unit which releases one end of the double-sided tape including the second release paper and the third release paper wound on the second supply roll provided on the other side of the main body so as to be transported, and removes the third release paper from the double-sided tape in the process; One side of the silicon sheet and the double-sided tape is aligned and bonded between the pressing rollers arranged in at least two or more pairs over a predetermined period, and the double-sided tape including the silicon sheet and the second release paper is stretched in the section. A pressing part formed to rotate the pair of pressing rollers at the same speed with each other so that there is no physical action; A winding unit for winding the silicone bonding tape including the second release paper formed through the pressing unit to prevent the transfer of tensile force to the pressing unit; And And a controller for controlling the driving of the silicon sheet supplying unit, the double-sided tape supplying unit, the crimping unit, and the winding unit. The method of claim 1, And the silicon sheet supplying unit further comprises a relaxation roller configured to relax the inner side of the baking so as to alleviate the resistance of the silicon sheet unwound in the first supply roll. The method of claim 1, Between the silicon sheet supply portion and the pressing portion, the silicon sheet is made of a silicon adhesive tape characterized in that it is made of a buffer section to maintain the state in which the silicon sheet is struck at a predetermined angle, and selectively transmits vibration to maintain uniform resistance. Device. The method of claim 1, The pressing roller consisting of the plurality of pairs made of the same size mutually rotated at the same speed of the silicon adhesive tape manufacturing apparatus, characterized in that. The method of claim 1, Among the pressing rollers, the first roller is the one where the silicon sheet and the double-sided tape flows, and the second one is the last position where the silicon sheet and the double-sided tape are adhered to the winding part. And the pressing force for the silicon sheet and the double-sided tape passing therebetween is characterized in that the first pressing roller is made of at least a second pressing roller. The method of claim 5, The winding unit includes a tension detection sensor to wind the force of the second pressing roller less than the pressing force with respect to the silicon bonding tape, the controller receives a signal from the tension detection sensor to control the driving of the winding unit The silicone adhesive tape manufacturing apparatus. The method of claim 1, At the front end of the crimping portion where the double-sided tape including the silicon sheet and the second release paper is introduced, an air shower is further installed to supply or suck air at a predetermined pressure to block the inflow of foreign substances under the control of the controller. The silicone adhesive tape manufacturing apparatus, characterized in that.

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