Processing method of double-faced adhesive tape product with narrow adhesive tape

Abstract

The invention relates to the technical field of die cutting, in particular to a processing method of a double-faced adhesive tape product with a narrow adhesive tape. In the advancing direction of a material belt, a first feeding assembly sends out a handle release film, a second feeding assembly sends out a double-faced adhesive tape and an auxiliary material protection film, a first material collecting assembly collects and rows raw paper in the double-faced adhesive tape, a third feeding assembly sends out a first auxiliary material release film, and a first die cutting assembly is used for carrying out first-time die cutting treatment; a second material receiving assembly receives the first auxiliary release film and receives and discharges waste glue generated by the first die cutting treatment, a fourth feeding assembly sends out a second auxiliary release film, and a second die cutting assembly is used for carrying out second die cutting treatment on the second auxiliary release film; a third material receiving assembly receives a second auxiliary material release film, a fifth feeding mechanism sends out a first box sealing adhesive tape, and a fourth material receiving assembly receives and discharges the first box sealing adhesive tape and waste adhesive generated by secondary die cutting treatment; and a sixth feeding assembly sends out a third auxiliary material release film, the third auxiliary material release film is subjected to third-time die cutting treatment through a third die cutting assembly, and the machining process is completed through post-treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of die-cutting, and particularly to a processing method for a double-sided adhesive product with a narrow adhesive strip. Background Art

[0002] Double-sided adhesive tape is a roll-shaped adhesive tape made by using paper, cloth, or plastic film as the base material and evenly coating an elastomeric pressure-sensitive adhesive or a resin-based pressure-sensitive adhesive on the above base material. It consists of three parts: the base material, the adhesive, and the release paper (film). The tape can stick things because it is coated with an adhesive on its surface. The earliest adhesives came from animals and plants. In the 19th century, rubber was the main component of the adhesive; while nowadays, various polymers are widely used. The adhesive can stick things because bonds are formed between its own molecules and the molecules of the item to be connected, and this kind of bond can firmly bond the molecules together. There are also many types of double-sided adhesive tapes: grid double-sided adhesive tape, reinforced double-sided adhesive tape, Rubber double-sided adhesive tape, high-temperature double-sided adhesive tape, non-woven double-sided adhesive tape, residue-free double-sided adhesive tape, cotton paper double-sided adhesive tape, double-sided glass cloth tape, PET double-sided adhesive tape, foam double-sided adhesive tape, etc., which are applied in the production processes of various industries.

[0003] With the technological innovation, the functions of electronic products are continuously increasing, the requirements for components are also getting higher, the size of the double-sided adhesive products used for auxiliary adhesion is becoming smaller and smaller, and the processing requirements for the die-cutting machine are also increasing. Figures 1 to 7 The following is a processing method for a certain existing double-sided adhesive product: Figure 1 The shaded area in is the double-sided adhesive area, with a width of only 0.5 MM; Figure 4 The double-shaded position in is the final reserved area of the double-sided adhesive, and the single-shaded position is to be discharged as waste. Since the area of the waste area is almost 4 times larger than the reserved area, it is very easy to drop the double-sided adhesive tape in the reserved area during the material collection process, resulting in the shortage and scrapping of the final finished product.

[0004] Therefore, it is crucial to provide a processing method that reduces the shortage and scrapping of finished products. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a processing method for a double-sided adhesive product with a narrow adhesive strip.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The present invention provides a processing method for a double-sided adhesive product with a narrow adhesive strip, including the following steps:

[0008] (S1) Along the advancing direction of the material tape, use the first feeding component to send out the handle release film, use the second feeding component to send out the double-sided tape and the auxiliary protective film, use the first collecting component to collect and discharge the base paper in the double-sided tape, use the third feeding component to send out the first auxiliary release film, obtain the first composite structure layer, and use the first die-cutting component to perform the first die-cutting process on the first composite structure layer;

[0009] (S2) After step (S1) is completed, use the second collecting component to collect the first auxiliary release film and collect and discharge the waste glue generated by the first die-cutting process, use the fourth feeding component to send out the second auxiliary release film, obtain the second composite structure layer, and use the second die-cutting component to perform the second die-cutting process on the second composite structure layer;

[0010] (S3) After step (S2) is completed, use the third collecting component to collect the second auxiliary release film, use the fifth feeding mechanism to send out the first sealing tape, use the fourth collecting component to collect and discharge the first sealing tape and the waste glue generated by the second die-cutting process, use the sixth feeding component to send out the third auxiliary release film, obtain the third composite structure layer, and use the third die-cutting component to perform the third die-cutting process on the third composite structure layer, and the post-treatment completes the processing of the double-sided tape product with narrow adhesive strips.

[0011] In an embodiment of the present invention, in step (S1), a plurality of knife lines having a first shape are arranged in a matrix on the first upper module body of the first die-cutting component.

[0012] In an embodiment of the present invention, in step (S1), the first composite structure layer is, from top to bottom, the first auxiliary release film, the double-sided tape, the handle release film, and the auxiliary protective film.

[0013] In an embodiment of the present invention, in step (S2), a plurality of knife lines having a second shape are arranged in a matrix on the second upper module body of the second die-cutting component.

[0014] In an embodiment of the present invention, in step (S2), the second composite structure layer is, from top to bottom, the second auxiliary release film, the double-sided tape, the handle release film, and the auxiliary protective film.

[0015] In an embodiment of the present invention, in step (S3), a plurality of knife lines having a third shape and a fourth shape are arranged in parallel on the third upper module body of the third die-cutting component.

[0016] In an embodiment of the present invention, in step (S3), the third composite structure layer is, from top to bottom, the third auxiliary release film, the double-sided tape, the handle release film, and the auxiliary protective film.

[0017] In an embodiment of the present invention, in step (S3), the post-treatment specifically includes the following steps:

[0018] After the third die-cutting unit finishes die-cutting, the seventh feeding component feeds out the second sealing tape, the eighth feeding component feeds out the tape film, and finally the finished product is wound by the winding component.

[0019] In an embodiment of the present invention, after the third die-cutting unit finishes die-cutting, the fifth material collecting component is used to collect and discharge the waste glue generated by the third die-cutting process;

[0020] After the seventh feeding component feeds out the second sealing tape, the sixth material collecting component is used to collect and discharge the second sealing tape and the third auxiliary release film.

[0021] In an embodiment of the present invention, while the eighth feeding component feeds out the tape film, the auxiliary protective film and the waste materials generated by the third die-cutting process are collected and discharged.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The products obtained by the existing processing technology are prone to the phenomenon of lack of glue, and the defective rate is generally more than 10%. Moreover, due to the small glue-containing area, the lack-of-glue products are not easy to be found during inspection and are likely to enter the market. However, the defective rate of the processing method of the present invention can be controlled within 3%. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the double-sided tape in the product obtained by using the processing method of the prior art double-sided tape product;

[0025] Figure 2 It is a schematic flow chart (I) of the processing method of the prior art double-sided tape product;

[0026] Figure 3 It is a schematic flow chart (II) of the processing method of the prior art double-sided tape product;

[0027] Figure 4 It is a schematic diagram of the upper die set body used in the first punching process of the processing method of the prior art double-sided tape product;

[0028] Figure 5 It is a schematic diagram of the upper die set body used in the second punching process of the processing method of the prior art double-sided tape product;

[0029] Figure 6 It is a schematic diagram of the upper die set body used in the third punching process of the processing method of the prior art double-sided tape product;

[0030] Figure 7 It is a schematic diagram of the product obtained after the third punching in the processing method of the prior art double-sided tape product;

[0031] Figure 8 It is a schematic flow chart of the processing method of Embodiment 1;

[0032] Figure 9 Schematic diagram after the first die-cutting process in the processing method of Example 1;

[0033] Figure 10 Schematic diagram of the first upper die set body in the first die-cutting assembly in the processing method of Example 1;

[0034] Figure 11 Schematic diagram after the second die-cutting process in the processing method of Example 1;

[0035] Figure 12 Schematic diagram of the second upper die set body in the second die-cutting assembly in the processing method of Example 1;

[0036] Figure 13 Schematic diagram after the third die-cutting process in the processing method of Example 1;

[0037] Figure 14 Schematic diagram of the third upper die set body in the third die-cutting assembly in the processing method of Example 1;

[0038] Reference numerals in the figure: 1. First feeding assembly; 2. Second feeding assembly; 3. First material collecting assembly; 4. Third feeding assembly; 5. First die-cutting assembly; 6. Second material collecting assembly; 7. Fourth feeding assembly; 8. Second die-cutting assembly; 9. Third material collecting assembly; 10. Fifth feeding assembly; 11. Fourth material collecting assembly; 12. Sixth feeding assembly; 13. Third die-cutting assembly; 14. Fifth material collecting assembly; 15. Seventh feeding assembly; 16. Sixth material collecting assembly; 17. Eighth feeding assembly; 18. Rewinding assembly; A. Area to be discharged as waste; B. Double-sided tape retention area. Specific embodiments

[0039] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] In the following embodiments, unless otherwise specified, the means and methods used are conventional means and methods in the art.

[0041] Example 1

[0042] This example provides a processing method for a double-sided tape product with a narrow adhesive strip, as Figure 8 shown, including the following steps:

[0043] (S1) Along the advancing direction of the material tape, the first feeding component 1 is used to send out the handle release film, the second feeding component 2 is used to send out the double-sided adhesive and the auxiliary protective film, the first winding component 3 is used to wind and discharge the base paper in the double-sided adhesive, and the third feeding component 4 is used to send out the first auxiliary release film to obtain the first composite structure layer, and the first die-cutting component 5 is used to perform the first die-cutting process on the first composite structure layer( Figure 9 );

[0044] Among them, the first feeding component 1 includes a first feeding roller and a first feeding roller driving motor, and the first feeding roller driving motor controls the first feeding roller to send out the handle release film; the second feeding component 2 includes a second feeding roller and a second feeding roller driving motor, and the second feeding roller driving motor controls the second feeding roller to send out the double-sided adhesive and the auxiliary protective film; the first winding component 3 includes a first winding roller and a first winding roller driving motor, and the first winding roller driving motor controls the first winding roller to wind and discharge the base paper in the double-sided adhesive; the third feeding component 4 includes a third feeding roller and a third feeding roller driving motor, and the third feeding roller driving motor controls the third feeding roller to send out the first auxiliary release film; a plurality of knife lines with a first shape (a rectangle, and symmetric isosceles trapezoidal notches are provided at the upper and lower ends of the rectangle) arranged in a matrix are provided on the first upper module body of the first die-cutting component 5( Figure 10 );The first composite structure layer is, from top to bottom, the first auxiliary release film, the double-sided adhesive, the handle release film, and the auxiliary protective film.

[0045] (S2) After step (S1) is completed, the second winding component 6 is used to wind the first auxiliary release film and wind and discharge the waste glue generated by the first die-cutting process, the fourth feeding component 7 is used to send out the second auxiliary release film to obtain the second composite structure layer, and the second die-cutting component 8 is used to perform the second die-cutting process on the second composite structure layer( Figure 11 );

[0046] Among them, the second winding component 6 includes a second winding roller and a second winding roller driving motor, and the second winding roller driving motor controls the second winding roller to wind and discharge the first auxiliary release film and the waste glue generated by the first die-cutting process; the fourth feeding component 7 includes a fourth feeding roller and a fourth feeding roller driving motor, and the fourth feeding roller driving motor controls the fourth feeding roller to send out the second auxiliary release film; a plurality of knife lines with a second shape (including a middle section and edge sections provided at both ends of the middle section, the middle section and the edge sections are connected by a U-shaped notch, along the length direction of the U-shaped groove, the height of the middle section is lower than that of the edge section, and the width of the U-shaped notch is 1 / 6 - 1 / 5 of the length of the middle section) arranged in a matrix are provided on the second upper module body of the second die-cutting component 8( Figure 12 );The second composite structure layer is, from top to bottom, the second auxiliary release film, the double-sided adhesive, the handle release film, and the auxiliary protective film.

[0047] (S3) After step (S2) ends, the third material receiving component 9 receives the second auxiliary release film, the fifth feeding mechanism sends out the first sealing tape, the fourth material receiving component 11 receives and discharges the first sealing tape and the waste glue generated by the second die-cutting process, the sixth feeding component 12 sends out the third auxiliary release film to obtain the third composite structure layer, and the third die-cutting component 13 performs the third die-cutting process on the third composite structure layer ( Figure 13 , area A that needs to be discharged as waste, double-sided tape retention area B), the fifth material receiving component 14 receives and discharges the waste glue generated by the third die-cutting process, the seventh feeding component 15 sends out the second sealing tape, the sixth material receiving component 16 receives and discharges the second sealing tape and the third auxiliary release film, the eighth feeding component 17 sends out the tape film, receives and discharges the auxiliary protective film and the waste generated by the third die-cutting process; finally, the winding component 18 winds the finished product to complete the processing of the double-sided tape product with narrow adhesive strips;

[0048] Among them, the third material receiving component 9 includes a third material receiving roller and a third material receiving roller driving motor, and the third material receiving roller driving motor controls the third material receiving roller to receive and discharge the second auxiliary release film; the fifth feeding component 10 includes a fifth feeding roller and a fifth feeding roller driving motor, and the fifth feeding roller driving motor controls the fifth feeding roller to send out the first sealing tape; the fourth material receiving component 11 includes a fourth material receiving roller and a fourth material receiving roller driving motor, and the fourth material receiving roller driving motor controls the fourth material receiving roller to receive and discharge the first sealing tape and the waste glue generated by the second die-cutting process; the sixth feeding component 12 includes a sixth feeding roller and a sixth feeding roller driving motor, and the sixth feeding roller driving motor controls the sixth feeding roller to send out the third auxiliary release film; on the third upper die set body of the third die-cutting component 13, there are a number of knife lines arranged in parallel with a third shape (rectangular, with rounded corners at the four end corners of the rectangle) and a fourth shape (rectangular, with one end corner of the rectangle extending along its side to form a handle-shaped protrusion) ( Figure 14 ); the third composite structure layer from top to bottom is successively the third auxiliary release film, double-sided tape, handle release film, and auxiliary protective film; the fifth material receiving component 14 includes a fifth material receiving roller and a fifth material receiving roller driving motor, and the fifth material receiving roller driving motor controls the fifth material receiving roller to receive and discharge the waste glue generated by the third die-cutting process; the seventh feeding component 15 includes a seventh feeding roller and a seventh feeding roller driving motor, and the seventh feeding roller driving motor controls the seventh feeding roller to send out the second sealing tape; the sixth material receiving component 16 includes a sixth material receiving roller and a sixth material receiving roller driving motor, and the sixth material receiving roller driving motor controls the sixth material receiving roller to receive and discharge the second sealing tape and the third auxiliary release film; the eighth feeding component 17 includes an eighth feeding roller and an eighth feeding roller driving motor, and the eighth feeding roller driving motor controls the eighth feeding roller to send out the tape film and receive and discharge the auxiliary protective film and the waste generated by the third die-cutting process; the winding component 18 includes a winding roller and a winding roller driving motor, and the winding roller driving motor controls the winding roller to wind the product.

[0049] The defective rate obtained by the processing method of this embodiment is less than 3%.

[0050] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention according to the interpretation of the present invention should be within the protection scope of the present invention.

Claims

1. A processing method for a double-sided adhesive product with narrow adhesive strips, characterized in that, It includes the following steps: (S1) Along the advancing direction of the material tape, use the first feeding component to send out the handle release film, use the second feeding component to send out the double-sided tape and the auxiliary protective film, use the first winding component to wind and discharge the base paper in the double-sided tape, use the third feeding component to send out the first auxiliary release film, obtain the first composite structure layer, and use the first die-cutting component to perform the first die-cutting process on the first composite structure layer; (S2) After step (S1) is completed, use the second winding component to wind the first auxiliary release film and wind and discharge the waste glue generated by the first die-cutting process, use the fourth feeding component to send out the second auxiliary release film, obtain the second composite structure layer, and use the second die-cutting component to perform the second die-cutting process on the second composite structure layer; (S3) After step (S2) is completed, use the third winding component to wind the second auxiliary release film, use the fifth feeding mechanism to send out the first sealing tape, use the fourth winding component to wind and discharge the first sealing tape and the waste glue generated by the second die-cutting process, use the sixth feeding component to send out the third auxiliary release film, obtain the third composite structure layer, and use the third die-cutting component to perform the third die-cutting process on the third composite structure layer, and the post-treatment completes the processing of the double-sided tape product with narrow adhesive strips.

2. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S1), a plurality of knife lines with a first shape arranged in a matrix are provided on the first upper die set body of the first die-cutting component.

3. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S1), the first composite structure layer from top to bottom is successively the first auxiliary release film, the double-sided tape, the handle release film, and the auxiliary protective film.

4. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S2), a plurality of knife lines with a second shape arranged in a matrix are provided on the second upper die set body of the second die-cutting component.

5. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S2), the second composite structure layer from top to bottom is successively the second auxiliary release film, the double-sided tape, the handle release film, and the auxiliary protective film.

6. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S3), a plurality of knife lines with a third shape and a fourth shape arranged in parallel are provided on the third upper die set body of the third die-cutting component.

7. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S3), the third composite structure layer from top to bottom is successively the third auxiliary release film, the double-sided tape, the handle release film, and the auxiliary protective film.

8. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 1, characterized in that, In step (S3), the post-treatment specifically includes the following steps: After the third die-cutting unit finishes die-cutting, the seventh feeding component sends out the second sealing tape, the eighth feeding component sends out the material tape film, and finally the finished product is wound by the winding component.

9. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 8, characterized in that, After the third die-cutting unit finishes die-cutting, use the fifth winding component to wind and discharge the waste glue generated by the third die-cutting process; After the seventh feeding component sends out the second sealing tape, use the sixth winding component to wind and discharge the second sealing tape and the third auxiliary release film.

10. The processing method for a double-sided adhesive product with narrow adhesive strips according to claim 8, characterized in that, While the eighth feeding component sends out the material tape film, it winds and discharges the auxiliary protective film and the waste material generated by the third die-cutting process.

Images