Anti-arching foam die cutting part pasting method

Abstract

The invention relates to an anti-arching foam die cutting part pasting method which comprises the following steps: A1, pasting a release film on a protective film to form a primary material belt; a2, the first-stage material belt is conveyed to the position of a first-stage punching and cutting machine, the first-stage punching and cutting machine is used for punching and cutting the release film, first-stage punching waste is discharged, and a second-stage material belt is formed; a3, the second-stage material belt is conveyed to the position of a first laminating machine, a first double-faced adhesive tape is laminated on the second-stage material belt, and a third-stage material belt is obtained; a4, the third-stage material belt continues to be conveyed to the position of a second laminating machine, first double-faced adhesive tape collagen paper on the first double-faced adhesive tape is removed, and a fourth-stage material belt is obtained; and A5, the fourth-stage material belt is rolled to the position of a secondary punching die cutting machine, foam is attached to the fourth-stage material belt, a fifth-stage material belt is obtained, the fifth-stage material belt is punched, secondary punching waste is discharged, and a foam die cutting piece product is formed. Compared with the prior art, the foam die cutting device has the advantages of being smooth in foam fitting, high in foam die cutting piece machining efficiency, high in percent of pass and the like.

Description

Technical Field

[0001] The present invention relates to the field of processing of foam die-cut parts, and in particular to a method for pasting foam die-cut parts to prevent arching. Background Art

[0002] Foam has advantages such as good buffering, shock resistance, heat insulation, moisture resistance, and chemical corrosion resistance, and is a very common packaging lining material. Among the die-cut parts we process, EVA foam processing is often encountered. Generally, the thickness is 1-2 mm, and in the thickest case, it may reach 5 mm. For the processing of this kind of foam, problems will definitely be encountered during the production operation. For example, after the foam die-cut parts processed by the flat knife process are laminated and wound up or the material tape is bent, the foam die-cut parts will wrinkle and arch, resulting in problems such as bevel edges, steps, and out-of-tolerance gap dimensions of the foam die-cut parts, making the flat knife die-cutting process difficult. Therefore, there is an urgent need for a method for pasting foam die-cut parts to avoid the arching condition. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a method for pasting foam die-cut parts to prevent arching. The roll material does not pass through the laminating machine for lamination, and the lamination step is directly completed through the pressing plate at the feeding port of the die-cutting machine. The foam is laminated flatly and directly enters the die-cutting machine for punching. The processing efficiency of the foam die-cut parts is high.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A method for pasting foam die-cut parts to prevent arching includes the following steps:

[0006] A1. Laminating a release film on a protective film to form a primary material tape;

[0007] A2. Conveying the primary material tape to the position of a first die-cutting machine, performing first die-cutting on the release film, and discharging the first die-cut waste to form a secondary material tape;

[0008] A3. Conveying the secondary material tape to the position of a first laminating machine, laminating a first double-sided adhesive tape on the secondary material tape to obtain a tertiary material tape;

[0009] A4. Continuing to convey the tertiary material tape to the position of a second laminating machine, removing the primary paper of the first double-sided adhesive tape on the first double-sided adhesive tape to obtain a quaternary material tape;

[0010] A5. Winding the quaternary material tape to the position of a second die-cutting machine, laminating foam on the quaternary material tape to obtain a quinary material tape, and punching the quinary material tape to discharge the second die-cut waste to form a foam die-cut part product, and the processing is completed.

[0011] Further, in step A2, the first punching waste is the waste of the cut edge of the die-cut release film.

[0012] Further, in step A3, the first feeding roller unwinds the first double-sided adhesive tape, and the first double-sided adhesive tape is pressed on the secondary tape by the first laminating machine to form a tertiary tape.

[0013] Further, in step A3, the first double-sided adhesive tape includes a first double-sided adhesive and a first double-sided adhesive base paper.

[0014] Furthermore, in step A4, the tertiary tape is conveyed to the position of the second laminating machine, where the first double-sided adhesive remains on the tertiary tape to form a quaternary tape, and the first double-sided adhesive base paper is discharged by winding through the first take-up roller.

[0015] Further, in step A5, a cover film is also adhered above the foam through a second double-sided adhesive.

[0016] Further, in step A5, the second feeding roller unwinds the foam.

[0017] Further, in step A5, the foam is adhered to the quaternary tape by the pressing plate of the second punching die-cutting machine.

[0018] Further, in step A5, the pressing plate is located at the feeding port of the second punching die-cutting machine. When the quaternary tape is conveyed to the second punching die-cutting machine, it first passes through the position of the pressing plate and then through the punching position.

[0019] Further, in step A5, the quaternary tape does not move forward continuously when entering the second punching die-cutting machine, but has a short stop during the forward movement. When the quaternary tape is stationary, the pressing plate performs the adhesion of the foam. After the adhesion is completed, the quaternary tape advances to the position of the knife line of the second punching die-cutting machine, and the quaternary tape is stationary for second punching die-cutting.

[0020] Further, in step A5, the second punching waste includes the waste of the release film and the border of the foam.

[0021] Further, in step A5, the foam die-cut part product from bottom to top is a protective film, a release film, a first double-sided adhesive, and a foam.

[0022] Furthermore, in step A5, the foam die-cut part product from bottom to top is a protective film, a release film, a first double-sided adhesive, a foam, a second double-sided adhesive, and a cover film.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The flat knife process for foam bonding does not go through a laminator for bonding. Instead, the bonding step is completed directly by the pressure plate at the feeding port of the die cutter. After the foam is bonded, it does not bend and directly enters the die cutter for punching. The foam is bonded smoothly, which can avoid arching. The manufacturing process of the foam die-cut parts is stable, improving the efficiency and product qualification rate. Brief Description of the Drawings

[0025] Figure 1 Schematic diagram of the method for pasting materials on the anti-arching foam die-cut parts shown in Embodiment 1;

[0026] Figure 2 Schematic diagram of the structure of the first double-sided adhesive tape shown in Embodiment 1;

[0027] Figure 3 Hierarchical diagram of the foam die-cut parts shown in Embodiment 1;

[0028] Figure 4 Schematic diagram of the method for pasting materials on the foam die-cut parts shown in Comparative Example 1.

[0029] Explanation of the marks in the figure:

[0030] 1 - First laminator, 2 - Second laminator, 3 - First unwinding roller, 4 - First rewinding roller, 5 - Second unwinding roller, 6 - Two-station die cutter, 61 - Pressure plate, 7 - Protective film, 8 - Release film, 9 - First double-sided adhesive tape, 91 - First double-sided adhesive, 92 - First double-sided adhesive base paper, 10 - Foam, 11 - Second double-sided adhesive, 12 - Cover film, 13 - Third laminator. Detailed Description of the Embodiments

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and the detailed implementation manners and specific operation processes are given. However, the protection scope of the present invention is not limited to the following embodiments. In the following embodiments or implementation manners, if there is no special description of the functional components or structures, it indicates that they are all conventional components or conventional structures adopted in the art to achieve the corresponding functions.

[0032] Embodiment 1

[0033] A method for pasting materials on anti-arching foam die-cut parts, as Figure 1 shown, includes the following steps:

[0034] A1. Bond the release film 8 on the protective film 7 to form a primary material tape;

[0035] A2. Transport the primary material tape to the position of a single-station die cutter, perform a single-station die cutting on the release film 8, and discharge the single-station waste to form a secondary material tape;

[0036] A3. Convey the secondary material tape to the position of the first laminator 1, and laminate the first double-sided adhesive tape 9 on the secondary material tape to obtain a tertiary material tape;

[0037] A4. Continue to convey the tertiary material tape to the position of the second laminator 2, remove the first double-sided adhesive backing paper 92 on the first double-sided adhesive tape 9 to obtain a quaternary material tape;

[0038] A5. Wind the quaternary material tape to the position of the second die-cutting machine 6, laminate the foam 10 on the quaternary material tape to obtain a quinary material tape, and die-cut the quinary material tape to discharge the secondary waste materials, forming a foam die-cut part product, and the processing is completed.

[0039] In this embodiment, in step A2, the first punching waste is the waste of the cut edge of the release film 8.

[0040] In this embodiment, in step A3, the first unwinding roller 3 unwinds the first double-sided adhesive tape 9, and the first double-sided adhesive tape 9 is pressed by the first laminator 1 on the secondary material tape to form a tertiary material tape.

[0041] In this embodiment, in step A3, the first double-sided adhesive tape 9 includes a first double-sided adhesive 91 and a first double-sided adhesive backing paper 92, as Figure 2 shown.

[0042] In this embodiment, in step A4, the tertiary material tape is conveyed to the position of the second laminator 2, wherein the first double-sided adhesive 91 remains on the tertiary material tape to form a quaternary material tape, and the first double-sided adhesive backing paper 92 is wound and discharged by the first winding roller 4.

[0043] In this embodiment, in step A5, a cover film 12 is also laminated above the foam 10 through a second double-sided adhesive 11.

[0044] In this embodiment, in step A5, the second unwinding roller 5 unwinds the foam 10.

[0045] In this embodiment, in step A5, the foam 10 is laminated on the quaternary material tape by the pressing plate 61 of the second die-cutting machine 6.

[0046] In this embodiment, in step A5, the pressing plate 61 is located at the feeding port of the second die-cutting machine 6. When the quaternary material tape is conveyed to the second die-cutting machine 6, it first passes through the position of the pressing plate 61 and then passes through the die-cutting position.

[0047] In this embodiment, in step A5, the fourth-level material tape does not move forward continuously when entering the second die-cutting machine 6, but has a short stop during the forward movement. When the fourth-level material tape is stationary, the pressure plate 61 performs the lamination of the foam 10. After the lamination is completed, the fourth-level material tape advances to the position of the knife line of the second die-cutting machine 6, and the fourth-level material tape is stationary for die-cutting.

[0048] In this embodiment, in step A5, the second-stage waste includes the border waste of the release film 8, the first double-sided tape 91, the foam 10, the second double-sided tape 12, and the cover film 13.

[0049] In this embodiment, in step A5, the foam die-cut part product from bottom to top is the protective film 7, the release film 8, the first double-sided tape 91, the foam 10, the second double-sided tape 12, and the cover film 13, as Figure 3 shown.

[0050] In this embodiment, the fourth-level material tape directly completes the lamination step through the pressure plate 61 at the feeding port of the second die-cutting machine 6. After the foam 10 is laminated, it does not bend and directly enters the second die-cutting machine 6 for punching. The foam 10 is laminated flat, which can avoid the arching condition. The production process of the foam die-cut part is stable, improving the efficiency and product qualification rate.

[0051] Comparative Example 1

[0052] A method for pasting a foam die-cut part to prevent arching, as Figure 4 shown, includes the following steps:

[0053] B1. Laminate the release film 8 on the protective film 7 to form a first-level material tape;

[0054] B2. Transport the first-level material tape to the position of the first die-cutting machine, perform the first die-cutting machine to punch the release film 8, and discharge the first-stage waste to form a second-level material tape;

[0055] B3. Transport the second-level material tape to the position of the first laminating machine 1, and laminate the first double-sided tape 9 on the second-level material tape to obtain a third-level material tape;

[0056] B4. Continue to transport the third-level material tape to the position of the second laminating machine 2, remove the first double-sided tape base paper 92 on the first double-sided tape 9 to obtain a fourth-level material tape;

[0057] B5. Transport the fourth-level material tape to the position of the third laminating machine 13, laminate the foam 10 on the fourth-level material tape to obtain a fifth-level material tape, wind it up to the position of the second die-cutting machine 6, and punch the fifth-level material tape to discharge the second-stage waste to form a foam die-cut part product, and the processing is completed.

[0058] In this comparative example, in step A2, the first punching waste is the edge waste of the die-cut release film 8.

[0059] In this comparative example, in step A3, the first feeding roller 3 unwinds the first double-sided adhesive tape 9, and the first double-sided adhesive tape 9 is pressed by the first laminating machine 1 onto the secondary tape to form a tertiary tape.

[0060] In this comparative example, in step A3, the first double-sided adhesive tape 9 includes a first double-sided adhesive 91 and a first double-sided adhesive base paper 92, as Figure 2 shown.

[0061] In this comparative example, in step A4, the tertiary tape is conveyed to the position of the second laminating machine 2, where the first double-sided adhesive 91 remains on the tertiary tape to form a quaternary tape, and the first double-sided adhesive base paper 92 is discharged by being wound up by the first take-up roller 4.

[0062] In this comparative example, in step A5, a cover film 12 is also adhered above the foam 10 through a second double-sided adhesive 11.

[0063] In this comparative example, in step A5, the second feeding roller 5 unwinds the foam 10.

[0064] In this comparative example, in step A5, the second punching waste includes the edge wastes of the release film 8, the first double-sided adhesive 91, the foam 10, the second double-sided adhesive 12, and the cover film 13.

[0065] In this comparative example, in step A5, the foam die-cut part product, from bottom to top, is a protective film 7, a release film 8, a first double-sided adhesive 91, a foam 10, a second double-sided adhesive 12, and a cover film 13, as Figure 3 shown.

[0066] In this comparative example, the quaternary tape passes through the third laminating machine 13 for laminating the foam 10. After lamination, the quinary tape is obtained. During the winding process of the quinary tape or when it is conveyed to the second punching die-cutting machine 6, it is prone to bending, wrinkling, and arching, resulting in problems such as bevel edges, steps, and out-of-tolerance gap dimensions of the foam 10, making the processing of the foam die-cut part difficult, greatly reducing the processing efficiency, and at the same time increasing the number of defective parts, causing waste of raw materials.

[0067] The above description of the embodiments is provided 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 efforts. Therefore, the present invention is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention according to the disclosure of the present invention.

Claims

1. A method for pasting a foam die-cut part to prevent arching, characterized in that, It includes the following steps: A1. Bond the release film (8) onto the protective film (7) to form a primary strip; A2. Transport the primary strip to the position of a first die-cutting machine, perform first die-cutting on the release film (8), and discharge the first die-cut waste to form a secondary strip; A3. Transport the secondary strip to the position of the first laminating machine (1), and laminate the first double-sided adhesive tape (9) onto the secondary strip to obtain a tertiary strip; A4. Continue to transport the tertiary strip to the position of the second laminating machine (2), remove the first double-sided adhesive backing paper (92) on the first double-sided adhesive tape (9) to obtain a quaternary strip; A5. Wind the quaternary strip to the position of the second die-cutting machine (6), laminate the foam (10) onto the quaternary strip to obtain a quinary strip, and perform die-cutting on the quinary strip to discharge the second die-cut waste, forming a die-cut foam part product, and the processing is completed.

2. A method for pasting a foamed material die-cut part to prevent arching according to claim 1, characterized in that In step A2, the first die-cut waste is the waste of the edges of the release film (8) that are die-cut.

3. A method for pasting a foam die-cut part to prevent arching according to claim 1, characterized in that, In step A3, the first unwind roller (3) unwinds the first double-sided adhesive tape (9), and the first double-sided adhesive tape (9) is pressed by the first laminating machine (1) onto the secondary strip to form a tertiary strip.

4. A method for pasting a foamed material die-cut part to prevent arching according to claim 1, characterized in that In step A3, the first double-sided adhesive tape (9) includes a first double-sided adhesive (91) and a first double-sided adhesive backing paper (92).

5. A method for pasting a foamed material die-cut part that prevents arching according to claim 4, characterized in that In step A4, the tertiary strip is transported to the position of the second laminating machine (2), where the first double-sided adhesive (91) remains on the tertiary strip to form a quaternary strip, and the first double-sided adhesive backing paper (92) is wound and discharged by the first rewinding roller (4).

6. A method for pasting a foamed material die-cut part for preventing arching according to claim 1, characterized in that, In step A5, a cover film (12) is also laminated above the foam (10) through a second double-sided adhesive (11).

7. A method for pasting a foamed material die-cut part to prevent arching according to claim 1, characterized in that, In step A5, the second unwind roller (5) unwinds the foam (10).

8. A method for pasting a foamed material die-cut part for preventing arching according to claim 1, characterized in that, In step A5, the foam (10) is laminated onto the quaternary strip through the pressing plate (601) on the second die-cutting machine (6).

9. A method for pasting a foamed material die-cut part to prevent arching according to claim 8, characterized in that, In step A5, the pressing plate (61) is located at the inlet of the second die-cutting machine (6).

10. A method for pasting a foamed material die-cut part to prevent arching according to claim 1, characterized in that, In step A5, the second die-cut waste includes the waste of the edges of the release film (8) and the foam (10).

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