Circular knife cooling die and die cutting device

Abstract

The embodiment of the invention provides a circular cutter cooling die and a die cutting device, the circular cutter cooling die comprises a die body, an annular cutter die is arranged on the peripheral surface of the die body, the annular cutter die comprises an inner hole part, a mounting hole is formed in the position, corresponding to the inner hole part, of the peripheral surface, and a probe is mounted in the mounting hole; a shaft hole communicated with the mounting hole is formed in the die body; the heat conduction ring is arranged in the shaft hole, an elastic layer is formed between the heat conduction ring and the inner wall of the shaft hole, and the elastic layer abuts against one end of the probe; and the refrigeration rod penetrates through the heat conduction ring. In the process that the annular cutting die cuts a material belt, a product with an inner hole can be directly formed, so that precision, yield and efficiency can be ensured, meanwhile, a heat conduction ring is arranged in a shaft hole and can provide elastic force capable of ejecting waste materials out for a probe, and a refrigeration rod penetrating through the heat conduction ring is arranged, so that the waste materials can be ejected out through the refrigeration rod. And the refrigeration rod can cool the mold body through the heat conduction ring, so that the risk of glue sticking is reduced, and the yield is further improved.

Description

Technical Field

[0001] This invention relates to the field of die-cutting technology, and in particular to a circular blade cooling mold and a die-cutting device. Background Technology

[0002] Die-cutting is a common processing method, and rotary die-cutting dies, as a crucial component, are used to shape products from strip material. In related technologies, products with internal holes require multiple sets of rotary die-cutting dies during the forming process. For example, one set of rotary die-cutting dies first shapes the product, and then another set cuts the internal hole onto the product. This method makes it difficult to ensure the relative position of the internal hole on the product, resulting in low precision and yield. Furthermore, the multiple-die-cutting method leads to low efficiency. Moreover, when rotary die-cutting adhesive strips and cutting internal holes onto products, adhesive residue can easily accumulate, further affecting yield. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a circular blade cooling mold and a die-cutting device, which can improve the accuracy, yield, and efficiency of die-cutting.

[0004] In a first aspect, embodiments of the present invention provide a circular blade cooling mold, comprising: a mold body, wherein the outer peripheral surface of the mold body is provided with an annular die for die-cutting a product on a strip, the annular die including an inner hole portion for die-cutting an inner hole on the product, and the outer peripheral surface having a mounting hole corresponding to the inner hole portion, the mounting hole having a probe installed thereon for ejecting waste material generated during the formation of the inner hole; the mold body including a first end and a second end opposite to each other, the first end being mounted on a frame, and the second end having a shaft hole communicating with the mounting hole; a heat-conducting ring disposed in the shaft hole, and an elastic layer being formed between the heat-conducting ring and the inner wall of the shaft hole, the elastic layer abutting against one end of the probe; and a cooling rod passing through the heat-conducting ring.

[0005] The circular blade cooling mold provided in the first aspect of the present invention has at least the following beneficial effects: By setting an annular die with an inner hole on the outer circumferential surface of the mold body, products with inner holes can be directly formed during the die-cutting process of the annular die, thereby ensuring accuracy, yield, and efficiency. At the same time, mounting holes are opened on the outer circumferential surface corresponding to the inner hole, and probes are installed in the mounting holes. The probes can eject the waste material generated during the formation of the inner hole, ensuring the reliability of the inner hole forming. Furthermore, a heat-conducting ring is set in the shaft hole, and an elastic layer is formed between the heat-conducting ring and the inner wall of the shaft hole. The elastic layer abuts against one end of the probe to provide the probe with an elastic force that can eject the waste material. Finally, a cooling rod is set through the heat-conducting ring, and the cooling rod can cool the mold body through the heat-conducting ring, reducing the risk of sticking and further improving the yield.

[0006] In one embodiment of this implementation, the elastic layer is formed by coating onto the outer ring surface of the heat-conducting ring.

[0007] In one embodiment of this implementation, the outer ring surface of the heat-conducting ring mates with the inner wall of the shaft hole and is provided with a receiving groove, and the elastic layer is disposed in the receiving groove.

[0008] In one embodiment of this implementation, the circular blade cooling mold includes a limiting block, which is installed at the second end and abuts against the elastic layer and the heat-conducting ring in the axial direction.

[0009] In one embodiment of this implementation, the limiting block forms a limiting protrusion that extends into the shaft hole and abuts against the elastic layer and the heat-conducting ring.

[0010] In one embodiment of this implementation, the limiting block has a mating protrusion on the side facing away from the heat-conducting ring, the mating protrusion being used to rotate with the frame.

[0011] In one embodiment of this implementation, the limiting block has an assembly hole communicating with the shaft hole, and the cooling rod is interference-fitted with the assembly hole.

[0012] In one embodiment of this implementation, one end of the cooling rod extends out of the shaft hole and is used to rotate with the frame.

[0013] In one embodiment of this implementation, the first end is provided with a gear for meshing with a power mechanism to rotate relative to the frame under the drive of the power mechanism.

[0014] Secondly, embodiments of the present invention provide a die-cutting apparatus, which includes a frame and a circular blade cooling mold as described in any embodiment of the first aspect, wherein the mold body of the circular blade cooling mold is mounted on the frame.

[0015] The die-cutting apparatus provided in the second aspect of the present invention has at least the following beneficial effects: By incorporating the circular blade cooling mold of the first aspect embodiment into the die-cutting device, the die-cutting device can directly form products with internal holes from the strip material, with high efficiency, precision and yield, and can retain the function of removing waste, making it less prone to sticking.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a circular knife cooling mold according to one embodiment of the present invention; Figure 2 yes Figure 1 A cross-sectional schematic diagram of a circular knife cooling mold; Figure 3 yes Figure 1 An enlarged schematic diagram of region I; Figure 4 yes Figure 1 A schematic diagram of the cross-section of the circular knife cooling mold as it passes through the probe; Figure 5 This is a cross-sectional schematic diagram of a circular knife cooling mold according to another embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of a circular knife cooling mold according to another embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of a circular knife cooling mold according to another embodiment of the present invention.

[0018] Figure label: Circular knife cooling mold 100; Mold body 10; outer peripheral surface 101; mounting hole 102; shaft hole 103; ring die 11; inner hole 111; probe 12; gear 13; rotating shaft 14; first end 110; second end 120; Heat-conducting ring 20; outer ring surface 201; receiving groove 202; elastic layer 21; Cooling rod 30; Limiting block 40; Assembly hole 401; Limiting protrusion 41; Mating protrusion 42; Heat transfer pad 50; heat transfer groove 501. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0021] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0023] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In the prior art, circular die-cutting molds used for forming inner holes usually need to be equipped with spring ejector pins to eject waste. However, the presence of spring ejector pins hinders the installation of heat dissipation structures, making it difficult to control the temperature of the circular die-cutting mold. If the temperature is too high, adhesive sticking is likely to occur.

[0025] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of the structure of a circular knife cooling mold 100 according to one embodiment of the present invention; Figure 2 yes Figure 1A cross-sectional schematic diagram of the circular knife cooling mold 100; Figure 3 yes Figure 1 An enlarged schematic diagram of region I; Figure 4 yes Figure 1 A schematic diagram of a circular blade cooling mold 100 in cross-section through a probe 12. This invention provides a circular blade cooling mold 100, which includes a mold body 10, a heat-conducting ring 20, and a cooling rod 30. The outer peripheral surface 101 of the mold body 10 is provided with an annular die 11 for die-cutting a product onto a strip. The annular die 11 includes an inner hole 111 for die-cutting an inner hole onto the product. A mounting hole 102 is provided on the outer peripheral surface 101 corresponding to the inner hole 111. A probe 12 is mounted in the mounting hole 102 and used to eject waste material generated during the formation of the inner hole. The mold body 10 includes a first end 110 and a second end 120 opposite to each other. The first end 110 is used for mounting on a frame, and the second end 120 has a shaft hole 103 communicating with the mounting hole 102. A heat-conducting ring 20 is disposed in the shaft hole 103, and an elastic layer 21 is formed between the ring 20 and the inner wall of the shaft hole 103. The elastic layer 21 abuts against one end of the probe 12. A cooling rod 30 passes through the heat-conducting ring 20.

[0026] Specifically, in this embodiment, the tape is an adhesive tape used to form battery adhesive with an inner hole. The annular die 11 is used to cut the tape into a battery adhesive with a matching shape. The inner hole portion 111 is a part of the annular die 11, and its contour matches the inner hole contour of the corresponding battery adhesive.

[0027] Specifically, the height of the probe 12 relative to the outer peripheral surface 101 is higher than the height of the inner hole portion 111 relative to the outer peripheral surface 101. During the cutting process of the annular die 11, the probe 12 squeezes the elastic layer 21 and retracts. After the inner hole portion 111 forms the inner hole, the elastic layer 21 recovers its elastic deformation, which can drive the probe 12 to reset, so that the probe 12 pushes out the waste material generated by the inner hole forming.

[0028] Specifically, to prevent the probe 12 from dislodging from the mounting hole 102, the bottom end of the probe 12 is provided with a flange (not shown), and the bottom of the mounting hole 102 is provided with a groove (not shown) that matches the flange.

[0029] Specifically, the cooling rod 30 can be a sealed copper tube with built-in refrigerant and a mesh core, achieving heat exchange through refrigerant phase change.

[0030] Understandably, the heat-conducting ring 20 can be selected as a metal ring with high heat transfer efficiency, such as a copper ring. The function of the heat-conducting ring 20 is twofold: firstly, to support the elastic layer 21, and secondly, to provide good heat transfer performance between the cooling rod 30 and the mold body 10, so that the heat on the mold body 10 can be carried away by the cooling rod 30 in a timely manner, ensuring that the annular die 11 on the mold body 10 has a low temperature, thereby reducing the risk of it sticking during the die-cutting process.

[0031] Specifically, the heat-conducting ring 20 can make heat-transfer contact with the cooling rod 30 through its inner ring surface, and the heat-conducting ring 20 can make heat-transfer contact with the mold body 10 through its outer ring surface 201 and end face. The elastic layer 21 can be made of materials such as rubber or silicone with good elastic deformation capabilities.

[0032] It is understandable that integrating the inner hole portion 111 of the forming inner hole onto the annular die 11 of the forming product can improve efficiency, precision and yield, but the increased cutting area also brings greater heat dissipation challenges, and the setting of the probe 12 also brings corresponding challenges to the setting of the heat dissipation structure.

[0033] The circular die cooling mold provided in this embodiment of the invention, by providing an annular die 11 with an inner hole portion 111 on the outer peripheral surface 101 of the die body 10, can directly form a product with an inner hole during the die cutting process of the annular die 11, thereby ensuring accuracy and yield. At the same time, a mounting hole 102 is opened on the outer peripheral surface 101 corresponding to the position of the inner hole portion 111, and a probe 12 is installed in the mounting hole 102. The probe 12 can eject the waste material generated during the formation of the inner hole, ensuring the reliability of the inner hole formation. Furthermore, a heat-conducting ring 20 is provided in the shaft hole 103, and an elastic layer 21 is formed between the heat-conducting ring 20 and the inner wall of the shaft hole 103. The elastic layer 21 abuts against one end of the probe 12 to provide the probe 12 with an elastic force that can eject the waste material. Finally, a cooling rod 30 is provided through the heat-conducting ring 20, and the cooling rod 30 can cool the die body 10 through the heat-conducting ring 20, reducing the risk of adhesion and further improving the yield.

[0034] In one embodiment of this implementation, please refer to Figure 2 The elastic layer 21 is coated and molded onto the outer ring surface 201 of the heat-conducting ring 20. This arrangement allows the elastic layer 21 to be supported and installed by the heat-conducting ring 20, and the molding method of the elastic layer 21 is relatively simple, which helps to reduce costs.

[0035] Specifically, after the elastic layer 21 is formed on the outer ring surface 201 of the heat-conducting ring 20, the heat-conducting ring 20 is inserted into the shaft hole 103, so that the elastic layer 21 and the shaft hole 103 are interference-fitted, thereby completing the installation.

[0036] It is understandable that the elastic layer 21 is interference-fitted with the shaft hole 103, which can achieve radial positioning of the heat-conducting ring 20 in the shaft hole 103, so as to facilitate the installation of the cooling rod 30.

[0037] In one embodiment of this implementation, please refer to Figure 5 , Figure 5 This is a cross-sectional schematic diagram of a circular blade cooling mold 100 according to another embodiment of the present invention. The outer ring surface 201 of the heat-conducting ring 20 mates with the inner wall of the shaft hole 103 and has a receiving groove 202, in which the elastic layer 21 is disposed. By mates the outer ring surface 201 of the heat-conducting ring 20 with the inner wall of the shaft hole 103, a large contact area can be ensured between the heat-conducting ring 20 and the mold body 10 to improve heat dissipation efficiency. At the same time, the receiving groove 202 for accommodating the elastic layer 21 is provided on the outer ring surface 201 of the heat-conducting ring 20, thereby realizing the installation of the elastic layer 21 to support the probe 12.

[0038] Specifically, the receiving groove 202 is opposite to the mounting hole 102 so that the elastic layer 21 can abut against the bottom end of the probe 12.

[0039] In one embodiment of this implementation, please refer to Figure 3 To fix the axial position of the heat-conducting ring 20 and the elastic layer 21 within the shaft hole 103, the circular blade cooling mold 100 includes a limiting block 40, which is mounted on the second end 120 and abuts against the elastic layer 21 and the heat-conducting ring 20 in the axial direction. This configuration allows the limiting block 40 to restrict the elastic layer 21 and the heat-conducting ring 20 from leaving the shaft hole 103.

[0040] Specifically, the limiting block 40 is constructed as a metal block to improve the heat transfer efficiency between the mold body 10 and the heat-conducting ring 20.

[0041] In one embodiment of this implementation, please refer to Figure 3 In order to facilitate the contact between the limiting block 40, the elastic layer 21, and the heat-conducting ring 20, the limiting block 40 forms a limiting protrusion 41, which extends into the shaft hole 103 and abuts against the elastic layer 21 and the heat-conducting ring 20.

[0042] It is understandable that the limiting protrusion 41 not only serves to connect with the elastic layer 21 and the heat-conducting ring 20, but also the outer surface of the limiting protrusion 41 fits against the inner wall of the shaft hole 103, thereby increasing the contact area between the limiting block 40 and the mold body 10, and further improving the heat transfer efficiency between the mold body 10 and the heat-conducting ring 20.

[0043] In one embodiment of this implementation, please refer to Figure 3 In order to enable the second end 120 to be installed on the frame, the limiting block 40 has a mating protrusion 42 on one side opposite to the heat-conducting ring 20. The mating protrusion 42 is used to rotate with the frame.

[0044] In one embodiment of this implementation, please refer to Figure 3 The limiting block 40 has an assembly hole 401 that communicates with the shaft hole 103, and the cooling rod 30 is interference-fitted with the assembly hole 401. With this configuration, the limiting block 40 can be directly connected to the cooling rod 30 to transfer the heat of the mold body 10 to the cooling rod 30, increasing the heat transfer path and improving the heat dissipation efficiency.

[0045] In one embodiment of this implementation, please refer to Figure 3 One end of the cooling rod 30 extends out of the shaft hole 103 and is used to rotate with the frame. This configuration allows for mounting of the cooling rod 30 and the second end 120 on the frame, resulting in a simple structure and helping to reduce costs.

[0046] In one embodiment of this implementation, please refer to Figure 3 In order to enable the rotation of the mold body 10 so that the annular die 11 can perform die cutting, the first end 110 is provided with a gear 13, which is used to mesh with the power mechanism to rotate relative to the frame under the drive of the power mechanism.

[0047] Specifically, the first end 110 is provided with a rotating shaft 14 that rotates with the frame, and the gear 13 is sleeved on the rotating shaft 14 and fixed to the end face of the first end 110 by screws.

[0048] In one embodiment of this implementation, please refer to Figure 6 , Figure 6 This is a cross-sectional schematic diagram of a circular blade cooling mold 100 according to another embodiment of the present invention. To further improve heat transfer efficiency, the circular blade cooling mold 100 includes a heat transfer pad 50, which is installed at the bottom of the shaft hole 103 and adheres to the inner wall and bottom wall of the shaft hole 103. The side of the heat transfer pad 50 facing away from the bottom wall abuts against the heat-conducting ring 20, the elastic layer 21, and the cooling rod 30. This arrangement allows the heat from the mold body 10 to be fully transferred to the cooling rod 30.

[0049] In one embodiment of this implementation, please refer to Figure 7 , Figure 7 This is a cross-sectional schematic diagram of the circular blade cooling mold 100 according to another embodiment of the present invention. To facilitate the mounting of the end of the cooling rod 30, the heat transfer pad 50 has a heat transfer groove 501, and the end of the cooling rod 30 is accommodated in the heat transfer groove 501. It is understood that the presence of the heat transfer groove 501 can increase the contact area between the cooling rod 30 and the heat transfer pad 50, thereby further improving heat transfer efficiency. Furthermore, the heat transfer groove 501 can provide mounting conditions for the end of the cooling rod 30, so as to prevent the cooling rod 30 from shaking (especially when the cooling rod 30 is mounted to a frame).

[0050] Please see Figure 1 This invention provides a die-cutting apparatus, which includes a frame (not shown) and a circular blade cooling mold 100 according to this invention. The mold body 10 of the circular blade cooling mold 100 is mounted on the frame. By incorporating the circular blade cooling mold 100 of this invention into the die-cutting apparatus, the apparatus can directly form products with internal holes from the material strip, achieving high efficiency, precision, and yield. Furthermore, it retains the function of removing waste and is less prone to adhesive residue buildup.

[0051] Specifically, the die-cutting device also includes a power mechanism (not shown), which is mounted on the frame and is capable of driving the gear 13 of the first end 110 of the die body 10 to rotate.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A circular knife cooling mold, characterized in that, include: The mold body has an annular die on its outer peripheral surface for die-cutting a product onto a strip. The annular die includes an inner hole for die-cutting an inner hole onto the product. A mounting hole is provided on the outer peripheral surface corresponding to the inner hole, and a probe is installed in the mounting hole to eject waste material generated during the formation of the inner hole. The mold body also includes a first end and a second end, the first end for mounting on a frame, and the second end for having a shaft hole communicating with the mounting hole. A heat-conducting ring is disposed in the shaft hole, and an elastic layer is formed between the ring ring and the inner wall of the shaft hole, the elastic layer abutting against one end of the probe; A cooling rod is inserted into the heat-conducting ring.

2. The circular blade cooling mold according to claim 1, characterized in that, The elastic layer is formed by coating on the outer ring surface of the heat-conducting ring.

3. The circular blade cooling mold according to claim 1, characterized in that, The outer ring surface of the heat-conducting ring mates with the inner wall of the shaft hole and has a receiving groove, and the elastic layer is disposed in the receiving groove.

4. The circular blade cooling mold according to claim 1, characterized in that, The circular blade cooling mold includes a limiting block, which is installed at the second end and abuts against the elastic layer and the heat-conducting ring in the axial direction.

5. The circular blade cooling mold according to claim 4, characterized in that, The limiting block forms a limiting protrusion, which extends into the shaft hole and abuts against the elastic layer and the heat-conducting ring.

6. The circular blade cooling mold according to claim 4, characterized in that, The limiting block has a mating protrusion on the side facing away from the heat-conducting ring, which is used to rotate with the frame.

7. The circular blade cooling mold according to claim 4, characterized in that, The limiting block has an assembly hole that communicates with the shaft hole, and the cooling rod is interference-fitted with the assembly hole.

8. The circular blade cooling mold according to claim 1, characterized in that, One end of the cooling rod extends out of the shaft hole and is used to rotate with the frame.

9. The circular blade cooling mold according to claim 1, characterized in that, The first end is provided with a gear for meshing with a power mechanism to rotate relative to the frame under the drive of the power mechanism.

10. A die-cutting apparatus, characterized in that, It includes a frame and a circular blade cooling mold according to any one of claims 1 to 9, wherein the mold body of the circular blade cooling mold is mounted on the frame.

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