Extreme material-saving die cutting processing technology

Abstract

The invention discloses an ultimate material-saving die cutting machining process. According to the technology, five machining stations which are arranged in sequence are used, each machining station is provided with two composite rollers which are arranged up and down, the second machining station and the third machining station are further provided with material passing rollers, the material passing roller of the second machining station is provided with a slitting die, and the slitting die is provided with a slitting die. And a feeding die is arranged on the composite roller located above the third machining station, and a finished product die is arranged on the composite roller located above the third machining station. According to the ultimate material-saving die cutting machining technology, an online compounding technology is arranged, a circular knife is used for online slitting, the technology that the die cutting feeding allowance is only 0.5 mm is achieved, the material consumption of die cutting feeding is further reduced, the material utilization rate is increased, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of die cutting, and in particular to an extreme material-saving die cutting process. Background Art

[0002] With the continuous development and breakthroughs of 5G technology, 5G construction is accelerating, and the demand for smart terminal devices that support 5G technology is constantly rising. Smart terminal devices have also ushered in a wave of replacement. Therefore, the smart terminal precision die-cutting parts industry has become more prosperous. Various die-cutting manufacturers are competing fiercely with each other to obtain more market share, which has prompted die-cutting technology to make great progress.

[0003] However, as market competition becomes fierce, even though the material margin of die-cutting has been controlled from 5mm to 1.5mm~2mm, it is generally believed that there are still problems such as large die-cutting margin, low material utilization rate and high cost price. Therefore, how to further save materials, improve material utilization rate, reduce costs and solve the extreme material saving process has become a difficult problem in this field. Summary of the invention

[0004] To solve the above problems, the present invention provides an extreme material-saving die-cutting processing technology, which realizes a process with a die-cutting margin of only 0.5mm by setting up an online composite process and using a circular knife for online slitting, thereby further reducing the material consumption of die-cutting, improving material utilization, and reducing costs.

[0005] According to one aspect of the present invention, there is provided an extreme material-saving die-cutting process, which uses five processing stations arranged in sequence, each of which has two composite rollers arranged up and down, and a feeding roller is also arranged on the second processing station and the third processing station, wherein a striping die is arranged on the feeding roller of the second processing station, a feeding die is arranged on the composite roller located above the third processing station, and a finished product die is arranged on the composite roller located above the third processing station;

[0006] The process includes the following steps:

[0007] S1: passing a layer of cover film between two composite rollers of the first to fifth processing stations in sequence;

[0008] S2: A base film is passed through two composite rollers of the second to fifth processing stations in sequence, and is composited with the cover film at the second processing station.

[0009] S3: passing a first composite film composed of a layer of foam, a layer of double-sided tape and a layer of paper through a feeding roller on the second processing station, and using the stripping die to die-cut the first composite film into strips, wherein the width of the first composite film strips is 1 mm greater than the total width W of the two products;

[0010] S4: allowing the first composite film to pass through the feeding roller on the third processing station and pass through the feeding die;

[0011] S5: allowing the composite film to pass through two composite rollers of the third to fifth processing stations in sequence, and composite with the cover film and the bottom film to form a second composite film;

[0012] S6: Using the finished product mold to process the second composite film to form a finished product.

[0013] In some embodiments, a plurality of unwinding reels are arranged around each processing station, which is advantageous in that each unwinding reel is used to unwind each film layer.

[0014] In some embodiments, a plurality of waste collection rolls are arranged around each processing station, which is advantageous in that each waste collection roll is used to collect waste generated in each step.

[0015] In some embodiments, in steps S2 and S3, the waste materials generated are collected by the same waste collection roll. The benefit of this is that it describes the use of a waste collection roll.

[0016] In some embodiments, in step S6, the generated waste is collected by another waste collection roll. The benefit of this is that the use of another waste collection roll is further described.

[0017] In some embodiments, in step S4, the first composite film passes through a groove on the feeding die, and the width of the groove is consistent with the width of the first composite film strips. The advantage is that the first composite film will be accurately stuck in the groove film when passing through the groove, ensuring that its position in the Y direction is stable and will not deviate.

[0018] In some embodiments, a large core take-up reel is arranged around the fifth processing station. The advantage is that the large core take-up reel can be used to reel up the processed finished product.

[0019] In some embodiments, the method further comprises the following steps: S7: using the large core reel to reel up the finished product. The benefit of this is that the final reeling step is described. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A product diagram of an extreme material-saving die-cutting process according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of equipment for an extreme material-saving die-cutting process is shown;

[0022] Figure 3 for Figure 2 A schematic diagram of die cutting on a striping die in an extreme material saving die cutting process is shown;

[0023] Figure 4 for Figure 2 Schematic diagram of die cutting on a finished mold using the extreme material saving die cutting process shown.

[0024] In the figure: cover film 1, foam 2, double-sided tape 3, bottom film 4, face paper 5, first composite film 6, second composite film 7, finished product 8, processing station 10, composite roller 11, feed roller 12, unwinding roll 13, waste roll 14, large core rewinding roll 15. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1 As shown, (a) is a schematic diagram of the layering of the product, and (b) is a schematic diagram of the arrangement of the two products. Take a product composed of foam 2 and double-sided adhesive 3 from bottom to top as an example. During processing, a layer of cover film 1 needs to be added to the bottom of the product.

[0027] In the die-cutting process of the prior art, two products are generally arranged side by side on a material strip head to head for processing. Assume that the total width of the two products is the gap W between the foam 2 and the double-sided adhesive tape 3 when the two products are arranged.

[0028] Taking W as 78.313mm as an example, the general die-cutting process will use a material 82mm wide when cutting, that is, the single-side feeding allowance is about 2mm.

[0029] like Figure 2-4 As shown, the processing technology of the present invention requires the use of five processing stations 10 arranged in sequence, and each processing station 10 has two composite rollers 11 arranged up and down. At the same time, the second processing station 10 and the third processing station 10 are also provided with a feed roller 12, which is located above each composite roller 11, and the rotation direction of each composite roller 11 and the feed roller 12 is shown in the figure.

[0030] A striping mold (called A mold) is arranged on the feeding roller 12 of the second processing station 10, a feeding mold (called B mold) is arranged on the upper composite roller 11 of the third processing station 10, and a finished product 8 mold (called C mold) is arranged on the upper composite roller 11 of the third processing station 10, which are represented by letters A, B, and C respectively in the accompanying drawings.

[0031] A plurality of unwinding reels 13 are arranged around each processing station 10 as required, for unwinding each film layer.

[0032] In addition, a plurality of waste collection rolls 14 are provided around each processing station 10 as required, for collecting the waste generated in each step.

[0033] Preferably, a large-core take-up reel 15 is provided around the fifth processing station 10 for winding up the finished product 8 after processing.

[0034] In the processing technology of the present invention, the processing of the above-mentioned product includes a plurality of main steps, which are described as follows.

[0035] S1: The cover film 1 is unloaded through a layer of unloading roll 13 and passed through between two composite rollers 11 of the first to fifth processing stations 10 in sequence.

[0036] S2: A base film 4 is unloaded through a layer of unloading roll 13, so that it passes through two composite rollers 11 of the second to fifth processing stations 10 in sequence, and is composited with the cover film 1 at the second processing station 10.

[0037] The waste generated by the compounding of the bottom film 4 is collected by a waste collection roll 14 .

[0038] S3: A first composite film 6 composed of a layer of foam 2, a layer of double-sided adhesive 3 and a layer of paper 5 is discharged through a discharge roll 13, passed through a feed roller 12 on a second processing station 10, and a striping die on the feed roller 12 is used in conjunction with a corresponding die-cutting device for die-cutting processing, such as Figure 3 As shown, this die-cutting process performs die-cutting on the first composite film 6 into strips.

[0039] The width of the first composite film 6 is 1 mm greater than the total width W of the two products, that is, in this embodiment, the width of the first composite film 6 is 79.313 mm.

[0040] In addition, the waste generated in this die-cutting process is collected by the same waste collection roll 14 as the waste generated in step S2 .

[0041] S4: The first composite film 6 is then passed through the feeding roller 12 on the third processing station 10. At this time, the first composite film 6 passes through the feeding die and is stuck.

[0042] Among them, there is a groove on the feeding mold, and the width of the groove is consistent with the width of the first composite film 6, that is, it is 79.313mm in this embodiment. When the first composite film 6 passes through the groove, it will be accurately stuck in the groove film, ensuring its Y-axis position stability and ensuring that it will not deviate.

[0043] S5: The first composite film 6 is passed through the two composite rollers 11 of the third to fifth processing stations 10 in turn, so as to be composited with the cover film 1 and the base film 4, thereby forming a second composite film 7 composed of the base film 4, the cover film 1, the foam 2, the double-sided tape 3 layers, and the face paper 5.

[0044] S6: When the second composite film 7 passes through the two composite rollers 11 of the third processing station 10, the finished product 8 mold on the upper composite roller 11 of the third processing station 10 is used in conjunction with the corresponding die-cutting equipment for die-cutting processing, such as Figure 4 As shown, the second die-cutting processes the second composite film 7 into a finished product 8.

[0045] During this die-cutting process, waste materials such as the base film 4 , the face paper 5 , etc. are collected by another waste collection roll 14 .

[0046] S7: Finally, after the finished product 8 is processed, the finished product 8 is wound up using the large-core winding reel 15 around the fifth processing station 10 .

[0047] The extreme material saving die cutting process of the present invention mainly has the following beneficial effects:

[0048] 1. The feeding mold is set to control the feeding accuracy of the material in the Y direction, ensuring that the material will not deviate and cause problems such as product defects;

[0049] 2. Based on the existing technology, the material consumption of die cutting is further reduced, so that the material margin is only 0.5mm;

[0050] 3. It improves the utilization rate of materials and reduces the cost of die-cutting processing, and has strong practicality and market competitiveness.

[0051] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An extreme material-saving die-cutting process, characterized in that: The process uses five processing stations (10) arranged in sequence, each of the processing stations (10) having two composite rollers (11) arranged one above the other, and a feeding roller (12) is also arranged on the second processing station (10) and the third processing station (10), wherein a striping die is arranged on the feeding roller (12) of the second processing station (10), a feeding die is arranged on the composite roller (11) located above the third processing station (10), and a finished product die is arranged on the composite roller (11) located above the third processing station (10); The process includes the following steps S1: allowing a layer of cover film (1) to pass between two composite rollers (11) of the first to fifth processing stations (10) in sequence; S2: allowing a base film (4) to pass through two laminating rollers (11) of the second to fifth processing stations (10) in sequence, and to be laminated with the cover film (1) at the second processing station (10); S3: a first composite film (6) formed by a layer of foam (2), a layer of double-sided adhesive (3) and a layer of paper tissue (5) is passed through a feeding roller (12) on the second processing station (10), and the first composite film (6) is die-cut into strips using the stripping die, wherein the width of the strips of the first composite film (6) is 1 mm greater than the total width W of the two products; S4: allowing the first composite film (6) to pass through the feeding roller (12) on the third processing station (10) and pass through the feeding die; S5: allowing the composite film (6) to pass through two composite rollers (11) of the third to fifth processing stations (10) in sequence, and to be composited with the cover film (1) and the base film (4) to form a second composite film (7); S6: Using the finished product mold to process the second composite film (7) to form a finished product (8).

2. The extreme material saving die cutting process according to claim 1, characterized in that: A plurality of unwinding reels (13) are arranged around each of the processing stations (10).

3. The extreme material saving die cutting process according to claim 1, characterized in that: A plurality of waste collection rolls (14) are arranged around each of the processing stations (10).

4. The extreme material saving die cutting process according to claim 3, characterized in that: In steps S2 and S3, the generated waste materials are collected by the same waste collection roll (14).

5. The extreme material saving die cutting process according to claim 4, characterized in that: In step S6, the generated waste is collected by another waste collection roll (14).

6. The extreme material saving die cutting process according to claim 1, characterized in that: In step S4, the first composite film (6) passes through a groove on the feeding die, and the width of the groove is consistent with the width of the strips of the first composite film (6).

7. The extreme material saving die cutting process according to claim 1, characterized in that: A large core take-up roll (15) is arranged around the fifth processing station (10).

8. The extreme material saving die cutting process according to claim 7, characterized in that: The following steps are also included S7: Use the large core take-up roll (15) to reel up the finished product.

Images