An extreme material saving die cutting process

Abstract

The application discloses a kind of limit material-saving die cutting processing technology.The process uses five sequentially arranged processing stations, each of the processing stations has two upper and lower composite rollers, and the second processing station and the third processing station are also provided with a material passing roller, wherein a slitting die is provided on the material passing roller of the second processing station, a material walking die is provided on the upper composite roller of the third processing station, and a finished product die is provided on the upper composite roller of the third processing station.In the present application, an online composite process is provided, and an online slitting is performed using a circular knife.The process achieves a die cutting material walking allowance of only 0.5mm, further reduces the material usage of die cutting material walking, improves material utilization, and reduces costs.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of die cutting processing, in particular to a limit material-saving die cutting processing technology. BACKGROUND

[0002] With the continuous development and breakthrough of 5G technology, 5G construction is accelerating, the demand for intelligent terminal devices supporting 5G technology is rising, and the intelligent terminal precision die cutting industry is also booming. In order to obtain more shares, die cutting manufacturers compete fiercely, which promotes the rapid progress of die cutting technology.

[0003] However, with the market competition entering a white-hot stage, even in die cutting processing, the material allowance of die cutting can be controlled to 1.5mm-2mm from the original 5mm, but it is generally believed that there are still problems of large die cutting material allowance, low material utilization rate, and high cost price. Therefore, how to further save materials, improve material utilization, reduce costs, and solve the limit material-saving process has become a difficult problem in this field. SUMMARY

[0004] To solve the above problems, the present application provides a limit material-saving die cutting processing technology, which realizes a process with a die cutting material allowance of only 0.5mm by setting an online composite process and using a round knife for online slitting, further reduces the amount of die cutting material, improves the material utilization rate, and reduces the cost.

[0005] According to one aspect of the present application, a limit material-saving die cutting processing technology is provided, which uses five processing stations arranged in sequence, each of which has two composite rollers arranged above and below, and a material passing roller is arranged on the second and third processing stations. A slitting die is arranged on the material passing roller of the second processing station, a material cutting die is arranged on the upper composite roller of the third processing station, and a finished product die is arranged on the upper composite roller of the third processing station.

[0006] The process includes the following steps:

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

[0008] S2: Make a bottom supporting film pass between the two composite rollers of the second to fifth processing stations in sequence, and composite the cover film on the second processing station.

[0009] S3: passing the first composite film composed of one layer of foam, one layer of double-sided adhesive and one layer of face paper through the material passing roller on the second processing station, and using the slitting die to die-cut and slit the first composite film, wherein the width of the first composite film slitting is 1mm larger than the total width W of the two products;

[0010] S4: passing the first composite film through the material passing roller on the third processing station, and passing through the material passing die and being clamped;

[0011] S5: passing the first composite film through the two composite rollers of the third to fifth processing stations in sequence, and being compounded with the cover film and the bottom supporting film into a second composite film;

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

[0013] In some embodiments, a plurality of material feeding rolls are arranged around each of the processing stations. This is beneficial in that each material feeding roll is used to feed each film layer.

[0014] In some embodiments, a plurality of waste collecting rolls are arranged around each of the processing stations. This is beneficial in that each waste collecting roll is used to collect the waste generated in each step.

[0015] In some embodiments, in steps S2 and S3, the waste generated is collected by the same waste collecting roll. This is beneficial in that the use of one waste collecting roll is described.

[0016] In some embodiments, in step S6, the waste generated is collected by another waste collecting roll. This is beneficial in that the use of another waste collecting roll is further described.

[0017] In some embodiments, in step S4, the first composite film passes through a groove on the material passing die, and the width of the groove is consistent with the width of the first composite film slitting. This is beneficial in that the first composite film is accurately clamped in the groove when passing through the groove, ensuring its stable position in the Y direction and preventing deviation.

[0018] In some embodiments, a large core collecting roll is arranged around the fifth processing station. This is beneficial in that the large core collecting roll can be used to collect the finished product after processing.

[0019] In some embodiments, the method further comprises the following step: S7: using the large core collecting roll to collect the finished product. This is beneficial in that the final collecting step is described. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 2 A device schematic diagram of an extreme material-saving die-cutting process according to an embodiment of the present application; Figure 1

[0022] Figure 3 A schematic diagram of die-cutting on a slitting die of an extreme material-saving die-cutting process according to an embodiment of the present application; Figure 2

[0023] Figure 4 A schematic diagram of die-cutting on a finished product die of an extreme material-saving die-cutting process according to an embodiment of the present application. Figure 2 In the figure: cover film 1, foam 2, double-sided adhesive tape 3, bottom support film 4, face paper 5, first composite film 6, second composite film 7, finished product 8, processing station 10, composite roller 11, material passing roller 12, material feeding roll 13, waste roll 14, large roll core material roll 15.

[0024] DETAILED DESCRIPTION

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] As shown in the figure, (a) is a schematic diagram of the layers of the product, and (b) is a schematic diagram of the arrangement of two products. Taking a product composed of foam 2 and double-sided adhesive tape 3 from bottom to top as an example, a cover film 1 is needed to be added to the bottom of the product during processing. Figure 1 In the die-cutting process of the prior art, two products are generally arranged side by side head to head on the material belt for processing. Let the total width of the two products be the width of the foam 2 and the double-sided adhesive tape 3 and the gap W between them when the two products are arranged.

[0027] Taking W as 78.313 mm as an example, the general die-cutting process will be a material with a width of 82 mm when cutting, i.e. a material with a single side material feeding allowance of about 2 mm.

[0028] As shown in the figure, five processing stations 10 are needed in the processing process of the present application, and each processing station 10 has two composite rollers 11 arranged above and below. At the same time, material passing rollers 12 are also arranged on the second processing station 10 and the third processing station 10, and the material passing rollers 12 are located above the composite rollers 11. The rotation directions of the composite rollers 11 and the material passing rollers 12 are shown in the figure.

[0029] Figures 2-4

[0030] ​​​​​A die (referred to as A die) is arranged on the passing roller 12 of the second processing station 10, a walking die (referred to as B die) is arranged on the composite roller 11 above the third processing station 10, and a finished product 8 die (referred to as C die) is arranged on the composite roller 11 above the third processing station 10, which are respectively represented by the letters A, B and C in the drawings.

[0031] A plurality of material feeding rolls 13 are arranged around each processing station 10 as needed for feeding each film layer.

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

[0033] Preferably, a large roll core collecting roll 15 is arranged around the fifth processing station 10 for collecting the finished product 8 after processing.

[0034] The processing technology in the present application includes a plurality of main steps for processing the above-mentioned products, which are described as follows.

[0035] S1: A cover film 1 is fed by a material feeding roll 13 and passes between the two composite rollers 11 of the first to fifth processing stations 10 in sequence.

[0036] S2: A bottom film 4 is fed by a material feeding roll 13 and passes between the two composite rollers 11 of the second to fifth processing stations 10 in sequence, and is compounded 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 collecting roll 14.

[0038] S3: A first composite film 6 composed of a layer of foam 2, a layer of double-sided adhesive tape 3 and a layer of face paper 5 is fed by a material feeding roll 13, passes through the passing roller 12 of the second processing station 10, and is die-cut by using the die-cutting device of the die-cutting die of the passing roller 12, as shown in Figure 3 The die-cutting of the first composite film 6 is shown in Fig. 2.

[0039] The width of the first composite film 6 after die-cutting is 1 mm larger than the total width W of the two products, i.e. in this embodiment, the width of the first composite film 6 after die-cutting is 79.313 mm.

[0040] In addition, the waste generated in this die-cutting and the waste generated in step S2 are collected by the same waste collecting roll 14.

[0041] S4: again make the first composite film 6 through the third processing station 10 on the material roller 12, at this time the first composite film 6 will pass through the material die and be clamped.

[0042] Wherein, the material die has a groove, the width of the groove is consistent with the width of the first composite film 6, that is, in this embodiment, it is 79.313mm, then the first composite film 6 will be accurately clamped in the groove when passing through the groove, ensuring the stability of its Y direction position, ensuring that it will not be offset.

[0043] S5: again make the first composite film 6 pass through the two composite rollers 11 of the third to fifth processing stations 10 in turn, so as to be compounded with the cover film 1 and the bottom film 4, thereby forming a second composite film 7 composed of the bottom film 4, the cover film 1, the foam 2, the double-sided adhesive 3 layer 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 die on the upper composite roller 11 of the third processing station 10 is used to cooperate with the corresponding die cutting equipment to carry out die cutting processing, as shown in Figure 4 The second composite film 7 is processed into a finished product 8.

[0045] And in this die cutting process, the waste of the bottom film 4, the face paper 5 and the like is collected by another waste collection roll 14.

[0046] S7: finally, after the finished product 8 is processed, the finished product 8 is collected by using the large roll core collection roll 15 around the fifth processing station 10.

[0047] The limit material-saving die cutting process mainly has the following beneficial effects:

[0048] 1. By setting the material die, the Y direction material walking accuracy is controlled, and it is ensured that the material will not be offset to cause product defects and the like;

[0049] 2. On the basis of the prior art, the material amount of die cutting is further reduced, so that the material walking allowance is only 0.5mm;

[0050] 3. The utilization rate of the material is improved, and the cost of die cutting is reduced, which has strong practicality and market competitiveness.

[0051] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A process for extreme material saving die cutting, characterized by: The process uses five processing stations (10) arranged in sequence, each of the processing stations (10) has two composite rollers (11) arranged in upper and lower positions, and a material passing roller (12) is arranged on the second and third processing stations (10), wherein a slitting die is arranged on the material passing roller (12) of the second processing station (10), a material walking die is arranged on the upper composite roller (11) of the third processing station (10), and a finished product die is arranged on the upper composite roller (11) of the third processing station (10); The process includes the following steps S1: A layer of cover film (1) is sequentially passed between the two composite rollers (11) of the first to fifth processing stations (10); S2: A bottom supporting film (4) is sequentially passed between the two composite rollers (11) of the second to fifth processing stations (10), and is compounded with the cover film (1) on the second processing station (10); S3: A layer of foam (2), a layer of double-sided adhesive (3), and a layer of face paper (5) compounded into a first composite film (6) pass through the material passing roller (12) on the second processing station (10), and the first composite film (6) is die cut and slitted using the slitting die, wherein the width of the slitting of the first composite film (6) is 1mm larger than the total width W of the two products; S4: The first composite film (6) passes through the material passing roller (12) on the third processing station (10), passes through the material walking die and is clamped; S5: The first composite film (6) is sequentially passed between the two composite rollers (11) of the third to fifth processing stations (10), and is compounded with the cover film (1) and the bottom supporting film (4) into a second composite film (7); S6: The second composite film (7) is processed using the finished product die to form a finished product (8).

2. A process for extreme material saving die cutting as claimed in claim 1 wherein: A plurality of material feeding rolls (13) are arranged around each of the processing stations (10).

3. A process for extreme material saving die cutting as claimed in claim 1 wherein: A plurality of waste collecting rolls (14) are arranged around each of the processing stations (10).

4. A process for extreme material saving die cutting as claimed in claim 3 wherein: In steps S2 and S3, the generated waste is collected by the same waste collecting roll (14).

5. A process for extreme material saving die cutting as claimed in claim 4 wherein: In step S6, the generated waste is collected by another waste collecting roll (14).

6. A process for extreme material saving die cutting as claimed in claim 1 wherein: In step S4, the first composite film (6) passes through a groove on the material walking die, and the width of the groove is consistent with the width of the slitting of the first composite film (6).

7. A process for extreme material saving die cutting as claimed in claim 1 wherein: A large core material collecting roll (15) is arranged around the fifth processing station (10).

8. A process for extreme material saving die cutting as claimed in claim 7 wherein: Further comprising the following steps S7: The finished product is wound using the large core material collecting roll (15).

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