A punching die assembly for small product wide specification coil material and its manufacturing method

Abstract

The present invention relates to a punching die assembly for small product wide specification coils, comprising: a punching die, which comprises a punching die body and: a pair of positioning hole punching cutters, a product punching cutter, a pair of product trimming cutters and a pair of guide pillars arranged on the punching die body; a second punching die, which comprises a second punching die body and: a pair of punching cutters, a pair of top waste pillars, a pair of strip trimming cutters, and a pair of guide pillars arranged on the second punching die body, which are used to penetrate the positioning holes for positioning when punching the strip; the positioning hole punching cutter is arranged close to the product trimming cutter, which is used to reduce the width of the auxiliary materials for product production. Compared with the prior art, the present invention can use a blue release film and process protection film of a narrow strip, saving raw materials and reducing costs.

Description

Technical Field

[0001] The invention relates to the technical field of die cutting, and in particular to a die cutting die assembly for small product wide specification coil material and a manufacturing method thereof. Background Art

[0002] Figure 1 It is a combination product of Mylar and double-sided tape. It is a small product with wide specifications. There is a large amount of blank area between the edge of the product and the edge of the product. The existing product punching tool and processing method are to punch out the product shape in sequence according to the product spacing. First, punch out the positioning hole, and then stick the process protective film on the Mylar after the waste is discharged. After the blue release film and process protective film inside the trimming line punched out by the first punching knife line are removed, the shipping material tape is stuck to the exposed adhesive surface of the product for the second punching. By moving the product positioning hole closer, the width of the product auxiliary material can be reduced. However, the new problem is that after the product positioning hole is moved closer, the newly attached auxiliary material tape will cover the position of the positioning hole, making it impossible to accurately position it, which brings difficulties to the precise punching of the product. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that a large number of blank areas exist in the current small product wide specification coil material strip, resulting in serious material waste in the production process, and to provide a punching die assembly for small product wide specification coil material and a manufacturing method thereof.

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

[0005] A punching die assembly for small-sized product with wide specification coils, comprising:

[0006] A punching die, comprising a punching die body and:

[0007] A pair of positioning hole punching tools are used to punch a pair of positioning holes on both sides of the material strip in the width direction;

[0008] A product punching tool, used for punching out the product shape;

[0009] A pair of product trimming tools for punching trimming lines on the upper and lower sides of the product; and

[0010] A pair of guide pins, used to pass through the positioning holes for positioning when punching the strip;

[0011] The double punch cutting die comprises a double punch cutting die body and a device arranged on the double punch cutting die body:

[0012] A pair of punching and cutting tools, used for punching holes with a diameter larger than the positioning holes at the positions of the positioning holes of the material strip;

[0013] A pair of waste removal columns are used to remove waste material at the punching position to expose the covered positioning holes;

[0014] A pair of strip trimming tools for punching and trimming the edges of the outgoing strip; and

[0015] A pair of guide pins, used to pass through the positioning holes for positioning when punching the strip;

[0016] The positioning hole punching tool is arranged close to the product trimming tool to reduce the width of the auxiliary material for product manufacturing.

[0017] As a preferred technical solution, the distance between the positioning hole punching tool and the product is 2-3 times the width of the product.

[0018] As a preferred technical solution, the diameter of the punching tool is 1-2 mm larger than the diameter of the positioning hole punching tool.

[0019] As a preferred technical solution, the diameter of the top waste column is 0.5-1 mm smaller than the diameter of the positioning hole punching tool.

[0020] As a preferred technical solution, the shape of the product punching tool is the same as the shape of the product.

[0021] As a preferred technical solution, the guide column and the positioning hole punching tool are flush with each other in the width direction of the material strip.

[0022] As a preferred technical solution, the punching and cutting tool is flush with the waste ejector column in the width direction of the material strip.

[0023] A method for manufacturing a small product with a wide specification coil is produced by performing two punching operations using the punching die assembly described above. The raw material strip of the product is composed of four layers of strips, Mylar, double-sided adhesive, blue release film and process protection film A, which are arranged in sequence from top to bottom. The product is specifically manufactured by the following method:

[0024] (1) The raw material strip is punched and cut in sequence according to the product spacing through a punch die;

[0025] The positioning hole punching tool has a punching depth that penetrates the entire raw material strip and punches a pair of positioning holes in the raw material strip;

[0026] The punching depth of the product punching tool is to penetrate the blue release film and punch out the product shape from the raw material strip;

[0027] The trimming tool punches out a cutting depth that penetrates the double-sided adhesive tape and punches out trimming lines on the upper and lower sides of the product on the raw material strip;

[0028] During cyclic punching, the guide pin is inserted into the positioning hole for positioning;

[0029] (2) After the punching die is used to punch, the waste Mylar and double-sided adhesive layer on the periphery of the product is discharged, and after the waste is discharged, the process protection film B is attached to the Mylar layer of the product, and the blue release film and process protection film A inside the trimming line punched out by the trimming tool are discharged, and a layer of shipping tape is attached to the surface of the double-sided adhesive layer;

[0030] (3) The product strip of step (2) is punched by two punch cutter dies, the punching tool punches a hole with a diameter larger than the positioning hole at the product spacing position before the guide column, and discharges the waste material at the position of the delivery strip hole at the previous product spacing position through the top waste column, exposing the lower positioning hole. During the cyclic punching, the guide column passes through the corresponding positioning hole for positioning, and the strip trimming tool punches and trims the delivery strip, and a small product width specification coil is obtained after the waste is discharged.

[0031] The four layers of raw material tape, namely Mylar, double-sided tape, blue release film and process protective film, are bonded by a bonding machine; the positioning hole punching tool is arranged close to the product trimming tool, and the blue release film, process protective film A and process protective film B adopt narrow material tapes that save material.

[0032] Compared with the prior art, the present invention moves the positioning hole toward the product by redesigning and improving the structure of the punching and cutting die, thereby reducing the width of the auxiliary materials in the product production process. At the same time, the setting of the double punch tool structure solves the problem that the positioning hole is blocked by the shipping material belt and cannot be accurately positioned due to the positioning hole of the product being moved closer, which affects the product processing accuracy. A hole slightly larger than the guide column is made at the position of the previous product spacing of the guide column of the double punch tool, and a top waste column smaller than the positioning hole is made at the position of the upper plate. During the cyclic punching, the position of the shipping material belt hole at the previous product spacing is first punched and then removed, exposing the bottom positioning hole, and then the material belt is positioned and punched by the guide column. The present invention greatly saves the consumption of auxiliary materials for product production. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of a wide-specification coil of small products;

[0034] Figure 2 It is a structural diagram of a single product;

[0035] Figure 3 This is a schematic diagram of the processing structure of small product wide specification coils;

[0036] Figure 4 The present invention is a schematic diagram of an existing punch die;

[0037] Figure 5 The present invention is a schematic diagram of an existing two-punch die;

[0038] Figure 6 This is a schematic diagram of punching with a punch die;

[0039] Figure 7 This is a schematic diagram of two-punch die punching;

[0040] Figure 8 A schematic diagram of a punching die of the present invention;

[0041] Fig. 9 , 10 for Figure 8 A schematic diagram of the main view and side view directions;

[0042] Fig.11 A schematic diagram of a punching die of the present invention;

[0043] Fig.12 , 13 for Fig.11 A schematic diagram of the main view and side view directions. DETAILED DESCRIPTION

[0044] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Figure 2 It is a combination product of Mylar and double-sided adhesive, which is a small product with wide specifications in roll form, such as Figure 1 As shown, there is a large amount of blank space between the edge of the product coil and the edge of the product. The existing product punching tool and processing method are as follows Figure 4 The punch die shown and Figure 5 The two-punch die cutting shown is made by two-step cutting. Figure 3 This is a schematic diagram of the processing structure of a small product with a wide specification coil. In the figure, a represents the product. The product shape is punched out in sequence according to the product spacing. The positioning holes are punched out first, and the process protective film is attached to the Mylar after the waste is discharged. After the blue release film and the process protective film inside the trimming line punched out by the first punching knife line are removed, the shipping material strip is attached to the exposed adhesive surface of the product and the second punching is performed. This kind of small product wide specification coil material strip has a large number of blank areas, which leads to serious material waste in the production process.

[0046] To solve this problem, the present invention provides a punching die assembly for small product wide specification coils, comprising:

[0047] Reference Figure 8-10 , a punching die, which includes a punching die body and a punching die body:

[0048] A pair of positioning hole punching tools 1, used to punch a pair of positioning holes on both sides of the material strip in the width direction;

[0049] A product punching tool 4, used for punching out the product shape;

[0050] A pair of product trimming cutters 3, used for punching out trimming lines on the upper and lower sides of the product; and

[0051] A pair of guide pins 2, used to pass through the positioning holes for positioning when punching the strip;

[0052] Reference Figure 11-13 , a two-punch die, which includes a two-punch die body and a two-punch die body:

[0053] A pair of punching and cutting tools 7, used for punching holes with a diameter larger than the positioning holes at the positions of the positioning holes of the material strip;

[0054] A pair of waste removal columns 6, used to remove waste material at the punching position to expose the covered positioning holes;

[0055] A pair of strip trimming cutters 5, used for punching and trimming the strip for delivery; and

[0056] A pair of guide pins 2, used to pass through the positioning holes for positioning when punching the strip;

[0057] The positioning hole punching tool 1 is arranged close to the product trimming tool 3 to reduce the width of the auxiliary material for product production. The shape of the product punching tool 4 is the same as the shape of the product. The guide column 2 is flush with the positioning hole punching tool 1 in the material strip width direction, and the punching punching tool 7 is flush with the top waste column 6 in the material strip width direction. Among them, the distance between the positioning hole punching tool 1 and the product is 2-3 times the width of the product, the diameter of the punching punching tool 7 is 2mm larger than the diameter of the positioning hole punching tool 1, and the diameter of the top waste column 6 is 1mm smaller than the diameter of the positioning hole punching tool 1.

[0058] During the specific production, the raw material strip of the product is composed of four layers of strips, Mylar, double-sided adhesive, blue release film and process protection film A, which are arranged in sequence from top to bottom. The product is made by the following method:

[0059] (1) Figure 6 , the raw material strip passes through a punch die and is punched and cut in sequence according to the product spacing;

[0060] The positioning hole punching tool 1 has a punching depth of penetrating the entire raw material strip and punching out a pair of positioning holes in the raw material strip;

[0061] The punching depth of the product punching tool 4 is to penetrate the blue release film and punch out the product shape from the raw material strip;

[0062] The trimming tool punches through the double-sided adhesive tape to cut trimming lines on the upper and lower sides of the product on the raw material strip.

[0063] During cyclic punching, the guide pin 2 is inserted into the positioning hole for positioning;

[0064] (2) After being punched by a punching die, the waste Mylar and double-sided adhesive layer on the periphery of the product is discharged. After the waste is discharged, the process protection film B is attached to the Mylar layer of the product, and the blue release film and process protection film A inside the trimming line punched by the trimming tool are discharged, and a layer of shipping tape is attached to the surface of the double-sided adhesive layer;

[0065] (3) The product strip of step (2) is punched by two punching cutter dies, and the punching and cutting tool 7 punches a punch hole with a diameter larger than the positioning hole at the position of the previous product spacing of the guide pillar 2, and discharges the waste material at the position of the delivery strip hole at the previous product spacing position through the top waste pillar 6, exposing the positioning hole at the bottom. During the cyclic punching, the guide pillar 2 is inserted into the corresponding positioning hole for positioning, and the strip trimming tool 5 punches and trims the delivery strip, such as Figure 7 After the waste is discharged, small product wide specification coils are obtained.

[0066] Among them, the four layers of raw material tape, including Mylar, double-sided tape, blue release film and process protective film, are bonded by a bonding machine; the positioning hole punching tool 1 is set close to the product trimming tool 3, and the blue release film, process protective film A and process protective film B use narrow tapes that save material.

[0067] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. 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 work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A punching die assembly for small product wide specification coils, characterized in that: include: A punching die, comprising a punching die body and: A pair of positioning hole punching tools are used to punch a pair of positioning holes on both sides of the material strip in the width direction; A product punching tool, used for punching out the product shape; A pair of product trimming tools for punching trimming lines on the upper and lower sides of the product; and A pair of guide pins, used to pass through the positioning holes for positioning when punching the strip; The double punch cutter die comprises a double punch cutter die body and: A pair of punching and cutting tools, used for punching holes with a diameter larger than the positioning holes at the positions of the positioning holes of the material strip; A pair of waste removal columns are used to remove waste material at the punching position to expose the covered positioning holes; A pair of strip trimming tools, used for punching and trimming the outgoing strip; The positioning hole punching tool is arranged close to the product trimming tool to reduce the width of the auxiliary material for product manufacturing; The distance between the positioning hole punching tool and the product is 2-3 times the width of the product; The diameter of the punching tool is 1-2 mm larger than the diameter of the positioning hole punching tool; The diameter of the top waste column is 0.5-1 mm smaller than the diameter of the positioning hole punching tool.

2. The punching die assembly for small product wide specification coil material according to claim 1 is characterized in that: The shape of the product punching tool is the same as the shape of the product.

3. The punching die assembly for small product wide specification coil material according to claim 1, characterized in that: The guide column is flush with the positioning hole punching tool in the width direction of the material strip.

4. The punching die assembly for small product wide specification coil material according to claim 1, characterized in that: The punching and cutting tool is flush with the waste ejector column in the width direction of the material strip.

5. A method for producing a small product with a wide specification coil, characterized in that: It is made by punching twice using the punching die assembly as claimed in claim 1.

6. The method for making a small product wide specification coil according to claim 5, characterized in that: The raw material strip of the product is composed of four layers of strips, Mylar, double-sided adhesive, blue release film and process protection film A, which are arranged in sequence from top to bottom. The product is specifically made by the following method: (1) The raw material strip passes through a punch die and is punched out in sequence according to the product spacing; The positioning hole punching tool has a punching depth that penetrates the entire raw material strip and punches a pair of positioning holes in the raw material strip; The punching depth of the product punching tool is to penetrate the blue release film and punch out the product shape from the raw material strip; The trimming tool punches out a cutting depth that penetrates the double-sided adhesive tape and punches out trimming lines on the upper and lower sides of the product on the raw material strip; During cyclic punching, the guide pin passes through the positioning hole for positioning; (2) After the punching die is used to punch, the waste Mylar and double-sided adhesive layer on the periphery of the product is discharged, and after the waste is discharged, the process protection film B is attached to the Mylar layer of the product, and the blue release film and process protection film A inside the trimming line punched out by the trimming tool are discharged, and a layer of shipping tape is attached to the surface of the double-sided adhesive layer; (3) The product strip of step (2) is punched by two punch cutter dies. The punching tool punches a hole with a diameter larger than the positioning hole at the product spacing position before the guide pin, and discharges the waste material at the position of the delivery strip hole at the previous product spacing position through the top waste pin, exposing the positioning hole at the bottom. During the cyclic punching, the guide pin passes through the corresponding positioning hole for positioning, and the strip trimming tool punches and trims the delivery strip. After the waste is discharged, a small product width specification coil is obtained.

7. The method for making a small product wide specification coil according to claim 6, characterized in that: The four layers of the raw material tape, namely, the Mylar tape, the double-sided tape, the blue release film and the process protection film, are laminated by a laminating machine; The positioning hole punching tool is arranged close to the product trimming tool, and the blue release film, process protection film A and process protection film B adopt narrow material strips that save materials.

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