A waste aperture process for die cutting with a rotary knife

Abstract

The application discloses a waste hole process for roll cutter die cutting, which does not need to set a waste hole waste protection film, saves materials and reduces the processing cost of products. The waste hole process is characterized in that: a die cushion protection film is pre-cut by a cutting knife to divide an area with concentrated waste holes, so that the die cushion protection film becomes three materials in the width direction; then product materials are compounded on the upper surface of the die cushion protection film which has been divided into three in the width direction; then the product materials are punched downward by a die roll group to form waste holes corresponding to the set holes; finally, the die cushion protection film material belt corresponding to the waste hole position is driven to carry out waste removal operation of the waste hole, and the product materials after waste removal and the other two die cushion protection films enter a rear position for subsequent die cutting processing.

Description

Technical Field

[0001] This invention relates to the technical field of waste removal from roller cutter punching, specifically a waste removal hole process for roller cutter punching. Background Technology

[0002] In the die-cutting industry, the waste holes formed by the roller cutter cutting the material strip are described in the waste removal process. Figure 1 The waste discharge process requires the transfer and discharge of product materials and the waste material formed by the die-cutting pad protective film through the waste discharge protective film at the bottom. In actual use, the waste discharge protective film covers the entire surface of the product materials and the die-cutting pad protective film, which requires a large amount of waste discharge protective film, increasing the cost of the waste discharge holes. Research has found that when the waste holes are concentrated in a horizontally defined area, this waste discharge is too wasteful because the surrounding waste discharge protective films do not need to participate in waste discharge. Therefore, there is an urgent need to develop a waste discharge hole process that reduces costs. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a waste discharge hole process for roller cutter punching, which eliminates the need for a waste discharge hole protective film, saving materials and reducing product processing costs.

[0004] A waste removal hole process for roller die cutting is characterized in that: the area with concentrated waste holes is pre-cut out of the die-cutting pad protective film by a slitting blade, so that the die-cutting pad protective film is divided into three strips in the width direction. Then, the product material is laminated onto the upper surface of the die-cutting pad protective film that has been divided into three strips in the width direction. Then, the die-cutting roller group punches the corresponding set holes of the product material downward to form waste holes. Finally, the die-cutting pad protective film strip corresponding to the waste hole position drives the waste hole to perform waste removal operation. The product material that has completed waste removal, together with the other two die-cutting pad protective films, enters the subsequent station for subsequent die-cutting processing.

[0005] Its further features are:

[0006] When the cutting blade cuts, it uses one side of the area corresponding to the waste hole as the reference side, and the other side extends outward by 1 to 5 mm from the end edge of the area corresponding to the waste hole.

[0007] Preferably, the other side extends outward by 2mm from the end edge of the corresponding area of ​​the waste hole to ensure reliable subsequent die-cutting;

[0008] When the cutting blade is cutting, the blade completely penetrates the thickness of the protective film of the die pad, thus completing a fully reliable cut;

[0009] When the cutting blade completes the cutting, there is no support mechanism at the bottom of the blade die pad protective film, ensuring that no extra material is wasted during cutting;

[0010] The cutting blade cuts the suspended die pad protective film, and the bottom position of the cutting blade is empty;

[0011] The depth of the downward punching hole of the die roller group penetrates the thickness of the product material but does not penetrate the thickness of the die pad protective film. This ensures that the die pad protective film strip at the corresponding position is an integral strip structure during subsequent waste discharge, which facilitates reliable subsequent winding.

[0012] Before the waste discharge hole process, the die-cutting pad protective film is pre-cut into three strips. The three die-cutting pad protective film strips and the product material are connected to their corresponding take-up rollers from back to front to ensure that each die-cutting pad protective film strip and the product material are laid flat during transport.

[0013] After adopting the above technical solution, the die-cutting pad protective film is pre-cut out of the area with concentrated waste holes by a cutting blade, so that the die-cutting pad protective film becomes three strips in the width direction. Waste removal is carried out by cutting out the die-cutting pad protective film strips corresponding to the waste holes. It does not require the setting of waste hole waste removal protective film, saving materials and reducing the processing cost of the product. Attached Figure Description

[0014] Figure 1 A schematic diagram of the existing die-cutting waste removal process;

[0015] Figure 2 This is a schematic diagram of the die-cut products to which this invention applies;

[0016] Figure 3 This is a schematic diagram of the process of the present invention;

[0017] The names corresponding to the serial numbers in the diagram are as follows:

[0018] Square hole 1 and round hole 2 in the middle;

[0019] 10 pieces of die-cutting pad protective film, 20 pieces of product material, 30 pieces of cutting blade, and 40 pieces of die-cutting roller assembly. Detailed Implementation

[0020] Processing such as Figure 2 When the product is shown, the holes indicated by the guide lines are the hollow positions of the product, that is, the waste holes that will be generated after punching. The square hole 1 in the middle is used for assembly clearance, and the round holes 2 at both ends are used for product assembly positioning. In actual processing, nine sets of products are formed by punching in the length direction at one time.

[0021] In specific implementation, a waste discharge hole process for roller cutter punching is described below. Figure 3Before the waste discharge hole process, the die-cutting pad protective film 10 is pre-cut into three strips. The three die-cutting pad protective film strips and the product material 20 are connected to their corresponding take-up rollers from back to front to ensure that each die-cutting pad protective film strip and the product material 20 are laid flat during conveying. In specific implementation, the die-cutting pad protective film 10 is pre-cut by the cutting blade 30 to cut out the area with concentrated waste holes, so that the die-cutting pad protective film 10 becomes three strips in the width direction, namely the die-cutting pad protective film corresponding to the middle waste hole and the die-cutting pad protective film strips corresponding to the two sides.

[0022] Next, the product material 20 is laminated onto the upper surface of the die-cutting pad protective film 10, which has been divided into three strips in the width direction. Then, the die-cutting roller group 40 punches the corresponding middle square hole and two round holes of the product material downward to form waste holes. Finally, the die-cutting pad protective film strip corresponding to the waste hole position drives the waste hole to perform waste discharge operation. The product material that has completed waste discharge, together with the other two die-cutting pad protective films, enters the rear station for subsequent die-cutting processing.

[0023] In specific implementation: When the cutting blade 30 is cutting, it takes the right side of the middle square hole 1 in the waste hole as the reference edge, and the other side extends outward by 2mm from the left end edge of the round hole 2 in the waste hole to ensure that subsequent die cutting is reliable.

[0024] In practice, when the cutting blade 30 is cutting, the blade completely penetrates the thickness of the protective film 10 of the die pad, thus completing a fully reliable cutting.

[0025] The cutting blade 30 cuts the suspended die-cutting pad protective film 10, with a gap set at the bottom position corresponding to the cutting blade; when the cutting blade 30 completes the cutting, there is no support mechanism at the bottom of the cutting blade 30 corresponding to the die-cutting pad protective film, ensuring that no extra material is wasted during cutting.

[0026] In practice, the depth of the downward punching hole of the die roller group 40 penetrates the thickness of the product material 20 but does not penetrate the thickness of the die pad protective film 10. This ensures that the die pad protective film strip at the corresponding position is an integral strip structure during subsequent waste discharge, which facilitates reliable subsequent winding.

[0027] Its working principle is as follows: The die-cutting pad protective film is pre-cut by a cutting blade to cut out the area with concentrated waste holes, so that the die-cutting pad protective film becomes three strips in the width direction. The waste removal operation is carried out by cutting out the die-cutting pad protective film strips corresponding to the waste holes. It does not require the setting of waste hole waste removal protective film, saving materials and reducing the processing cost of the product.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A process for creating waste discharge holes in roller cutter punching, characterized in that: The die-cutting pad protective film is pre-cut with a cutting blade to cut out the area with concentrated waste holes, so that the die-cutting pad protective film is divided into three strips in the width direction. Then, the product material is laminated on the upper surface of the die-cutting pad protective film that has been divided into three strips in the width direction. Then, the die-cutting roller group punches the corresponding set holes of the product material downward to form waste holes. Finally, the die-cutting pad protective film strip corresponding to the waste hole position drives the waste hole to perform waste discharge operation. The product material that has completed waste discharge, together with the other two die-cutting pad protective films, enters the rear station for subsequent die-cutting processing. When the cutting blade is cutting, the blade completely penetrates the thickness of the protective film of the die pad, thus completing a fully reliable cut; When the cutting blade completes the cutting, there is no support mechanism at the bottom of the blade die pad protective film, ensuring that no extra material is wasted during cutting; The cutting blade cuts the suspended die pad protective film, and the bottom position of the cutting blade is empty; The depth of the downward punching hole of the die roller group penetrates the thickness of the product material but does not penetrate the thickness of the die pad protective film. This ensures that the die pad protective film strip at the corresponding position is an integral strip structure during subsequent waste discharge, which facilitates reliable subsequent winding. Before the waste discharge hole process, the die-cutting pad protective film is pre-cut into three strips. The three die-cutting pad protective film strips and the product material are connected to their corresponding take-up rollers from back to front to ensure that each die-cutting pad protective film strip and the product material are laid flat during transport.

2. The waste discharge hole process for roller cutter punching according to claim 1, characterized in that: When the cutting blade cuts, it uses one side of the area corresponding to the waste hole as the reference edge, and the other side extends outward by 1 to 5 mm from the end edge of the area corresponding to the waste hole.

3. The waste discharge hole process for roller cutter punching according to claim 2, characterized in that: On the other side, extend outwards by 2mm from the end edge of the corresponding area of ​​the waste hole.

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