Extrusion die for heat-dissipating aluminum foil

Abstract

This utility model discloses a heat-dissipating aluminum foil extrusion die in the field of extrusion molding die technology, including an upper die component and a lower die component. The upper die component has an upper extrusion part and an upper cutting part, the upper cutting part extending along a closed-loop path. The lower die component has a lower extrusion part and a lower cutting part, the lower cutting part and the upper cutting part being aligned with each other in the vertical direction. One of the upper cutting part and the lower cutting part is provided with a rigid cutting edge, and the other is provided with an elastic element that matches the position of the rigid cutting edge. In the heat-dissipating aluminum foil extrusion die of this utility model, the rigid cutting edge and the elastic element abut against each other during cutting, realizing the punching and cutting of the aluminum foil. The rigid cutting edge and the elastic element can realize the cooperative punching of hard and soft edges. The elastic element can play a buffering role to assist punching, avoiding direct impact from the rigid cutting edge, reducing die wear, and significantly improving die life; it helps to maintain the sharpness of the rigid cutting edge, improving cutting quality; it has low maintenance costs, reduces vibration and noise, and improves the working environment.

Description

Technical Field

[0001] This utility model relates to the field of extrusion molding die technology, and in particular to a heat dissipation aluminum foil extrusion die. Background Technology

[0002] In the field of metal stamping, especially in the processing of high-precision thin sheet metal parts such as heat dissipation aluminum plates, the design of stamping dies directly affects the cutting quality, dimensional accuracy, and production efficiency of the product. Traditional stamping dies typically employ a cutting method with both upper and lower dies having rigid structures. However, when cutting soft materials such as aluminum plates, problems such as burrs, uneven cross-sections, or material deformation are prone to occur. In addition, rigid stamping can lead to rapid wear of the die cutting edge, especially when stamping aluminum foil with thin material thickness. High-speed continuous stamping conditions can significantly reduce the die life. Utility Model Content

[0003] The purpose of this utility model is to provide a heat dissipation aluminum foil extrusion mold to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] A heat-dissipating aluminum foil extrusion die includes: an upper die component and a lower die component;

[0006] The upper die component has an upper extrusion part and an upper cutting part. The upper cutting part extends along a closed-loop path, and the upper extrusion part is arranged downwards. The upper extrusion part is located within the area enclosed by the upper cutting part.

[0007] The lower die component is located below the upper die component. The lower die component has a lower extrusion part and a lower cutting part. The lower cutting part and the upper cutting part are aligned with each other in the vertical direction. The lower extrusion part is arranged facing upward and is located within the area enclosed by the lower cutting part.

[0008] One of the upper cutting section and the lower cutting section is provided with a rigid cutting edge, and the other is provided with an elastic element that matches the position of the rigid cutting edge.

[0009] The heat-dissipating aluminum foil extrusion die provided by this utility model has at least the following beneficial effects: During the extrusion forming of heat-dissipating aluminum foil, the upper die component and the lower die component abut against each other in the vertical direction to close the die, and the aluminum foil is pressed and shaped by the upper extrusion part and the lower extrusion part to form a heat-dissipating structure of aluminum foil. At the same time, the upper cutting part and the lower cutting part extending along the closed loop path abut against each other to cut off the edge of the aluminum foil and form a single heat-dissipating aluminum foil unit. During the cutting process, the rigid cutting edge and the elastic element abut against each other to achieve punching and cutting of the aluminum foil. The rigid cutting edge and the elastic element can achieve the cooperation of hard edge and soft edge punching. The elastic element can play a buffering role to assist punching and avoid direct impact from the rigid cutting edge. Compared with the traditional rigid cutting punching, it greatly reduces the wear of the die and significantly improves the die life; it helps to maintain the sharpness of the rigid cutting edge, improves the cutting quality, and avoids tearing or burrs; and the maintenance cost of the elastic element is low; it reduces vibration and noise and improves the working environment.

[0010] As a further improvement to the above technical solution, the upper cutting part is provided with a mounting groove extending along the closed-loop path, and a rigid blade is detachably embedded in the mounting groove, the rigid blade forming the rigid cutting edge.

[0011] As a further improvement to the above technical solution, the lower cutting portion is provided with a slot extending along the closed-loop path, and the elastic element is embedded in the slot.

[0012] As a further improvement to the above technical solution, the elastic element is insulating paper.

[0013] As a further improvement to the above technical solution, the upper extrusion part includes multiple upper protrusions and upper grooves, and the lower extrusion part includes multiple lower protrusions and lower grooves. The upper protrusions and lower grooves are aligned vertically and vertically in a one-to-one correspondence, and the lower protrusions and upper grooves are aligned vertically and vertically in a one-to-one correspondence.

[0014] As a further improvement to the above technical solution, the upper convex strip and the upper groove both extend along the first direction, and the lower convex strip and the lower groove both extend along the second direction, wherein the first direction, the second direction, and the up-down direction are perpendicular to each other.

[0015] As a further improvement to the above technical solution, the upper mold component includes an upper mold base, the lower mold component includes a lower mold base, one of the upper mold base and the lower mold base is provided with a guide post extending vertically, and the other is provided with a guide hole corresponding to the guide post.

[0016] As a further improvement to the above technical solution, the upper mold component further includes an upper mold core plate disposed on the lower side of the upper mold base, and the upper extrusion part and the upper cutting part are both disposed on the lower side of the upper mold core plate; the lower mold component further includes a lower mold core plate disposed on the upper side of the lower mold base, and the lower extrusion part and the lower cutting part are both disposed on the upper side of the lower mold core plate.

[0017] As a further improvement to the above technical solution, both the upper mold core plate and the lower mold core plate include a plate body and protrusions. The upper groove or lower groove is provided on the plate body. The plate body is also provided with multiple positioning grooves. The protrusions are embedded in the positioning grooves one by one to form the upper protrusion or lower protrusion.

[0018] As a further improvement to the above technical solution, the positioning groove extends through the plate body vertically, and both the upper mold base and the lower mold base are provided with air guide holes that connect to the positioning groove. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the heat dissipation aluminum foil extrusion mold provided by this utility model;

[0021] Figure 2 This is another perspective view of an embodiment of the heat dissipation aluminum foil extrusion mold provided by this utility model;

[0022] Figure 3 This is a side sectional view of an embodiment of the heat dissipation aluminum foil extrusion die provided by this utility model;

[0023] Figure 4 yes Figure 3 A magnified view of a portion of region A in the middle;

[0024] Figure 5 yes Figure 3 A magnified view of a portion of region B in the middle.

[0025] In the diagram: 10-Upper mold component, 20-Lower mold component, 100-Upper mold base, 110-Guide hole, 200-Upper mold core plate, 210-Upper extrusion part, 211-Upper protrusion, 212-Upper groove, 220-Upper cutting part, 221-Rigid cutting edge, 222-Rigid blade, 2221-Main blade body, 2222-Secondary blade body, 300-Lower mold base, 310-Guide post, 320-Ventilation channel, 321-Ventilation hole, 322-Ventilation groove, 400-Lower mold core plate, 410-Lower extrusion part, 411-Lower protrusion, 412-Lower groove, 420-Lower cutting part, 421-Elastic element, 422-Slot, 510-Plate body, 520-Protrusion, 530-Ventilation hole. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0028] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figures 1 to 5 The heat dissipation aluminum foil extrusion die of this utility model is illustrated in the following embodiments:

[0031] A heat dissipation aluminum foil extrusion die includes an upper die component 10 and a lower die component 20, wherein the upper die component 10 and the lower die component 20 are arranged vertically, and the lower die component 20 is located below the upper die component 10.

[0032] The upper mold component 10 has an upper extrusion section 210 and an upper cutting section 220. The upper cutting section 220 extends along a closed-loop path and encloses an upper forming extrusion area. The upper extrusion section 210 is disposed downward and within the forming extrusion area enclosed by the upper cutting section 220.

[0033] The lower die component 20 has a lower extrusion portion 410 and a lower cutting portion 420. The lower cutting portion 420 also extends along a closed-loop path, and is aligned vertically with the upper cutting portion 220. The projections of the lower cutting portion 420 and the upper cutting portion 220 in the vertical direction coincide, and the lower cutting portion 420 encloses a lower forming extrusion area corresponding to the upper forming extrusion area. The lower extrusion portion 410 is disposed facing upwards within the lower forming extrusion area enclosed by the lower cutting portion 420.

[0034] One of the upper cutting portion 220 and the lower cutting portion 420 is provided with a rigid cutting edge 221, and the other is provided with an elastic element 421 that matches the position of the rigid cutting edge 221. In this embodiment, the lower mold component 20 is fixedly disposed below the upper mold component 10, and the upper mold component 10 is moved up and down by a mold closing drive unit. The rigid cutting edge 221 is disposed in the upper cutting portion 220, and the elastic element 421 is disposed in the lower cutting portion 420.

[0035] In practical use, the upper die component 10 and the lower die component 20 abut against each other in the vertical direction to close the die. The upper extrusion part 210 and the lower extrusion part 410 press the aluminum foil into shape, forming a heat dissipation structure for the aluminum foil. At the same time, the upper cutting part 220 and the lower cutting part 420, which extend along the closed-loop path, abut against each other to cut the edge of the aluminum foil, forming a single heat dissipation aluminum foil unit. During the cutting process, the rigid cutting edge 221 and the elastic element 421 abut against each other to achieve punching and cutting of the aluminum foil. The rigid cutting edge 221 and the elastic element 421 can achieve punching with the hard edge and the soft edge. The elastic element 421 can play a buffering role to assist punching, avoiding direct impact from the rigid cutting edge 221. Compared with traditional rigid cutting, this greatly reduces die wear and significantly improves die life; it helps to maintain the sharpness of the rigid cutting edge 221, improves cutting quality, and avoids tearing or burrs; and the maintenance cost of the elastic element 421 is low; it reduces vibration and noise and improves the working environment.

[0036] In this embodiment, the upper cutting portion 220 is provided with a mounting groove extending along the closed-loop path, and a rigid blade 222 is fixedly embedded in the mounting groove, forming the rigid cutting edge 221. By forming the rigid cutting edge 221 with the rigid blade 222 embedded in the mounting groove, mold maintenance can be easily achieved by disassembling and replacing the rigid blade 222.

[0037] Referring to the accompanying drawings, the rigid blade 222 includes a main blade body 2221 and a secondary blade body 2222. The main blade body 2221 has a main cutting edge, and the secondary blade body 2222 has a pressure strip. The main cutting edge and the pressure strip are spaced apart from each other and both extend along the closed-loop path, forming a closed-loop extended rigid cutting edge 221. The cross-section of the main cutting edge is acute-angled. Both the main blade body 2221 and the secondary blade body 2222 are embedded in the mounting groove. The bottom of the mounting groove has mounting screw holes, and the rigid blade 222 is locked and fixed in the mounting groove by mounting screws passing through the main blade body 2221 and the secondary blade body 2222. In actual use, the distance between the pressure strip and the main cutting edge can be changed by replacing the secondary blade body 2222, thereby adjusting the width of the rigid cutting edge 221.

[0038] In this embodiment, the lower cutting portion 420 is provided with a slot 422 extending along the closed-loop path, and the elastic member 421 is a long strip extending along the closed-loop shape, and the elastic member 421 is embedded in the slot 422.

[0039] In this embodiment, the elastic element 421 is an insulating paper product, specifically made of polyimide film, aramid paper, silicone / polyurethane, etc. In other embodiments, the elastic element 421 may also be made of non-insulating materials or other elastic materials as needed.

[0040] In this embodiment, the upper mold component 10 includes an upper mold base 100 and an upper mold core plate 200, and the lower mold component 20 includes a lower mold base 300 and a lower mold core plate 400. The upper mold core plate 200 and the lower mold core plate 400 are disposed between the upper mold base 100 and the lower mold base 300: the upper mold core plate 200 is disposed on the lower side of the upper mold base 100, and the lower mold core plate 400 is disposed on the upper side of the lower mold base 300. The upper extrusion part 210 and the upper cutting part 220 are both disposed on the lower side of the upper mold core plate 200, and the lower extrusion part 410 and the lower cutting part 420 are both disposed on the upper side of the lower mold core plate 400.

[0041] One of the upper mold base 100 and the lower mold base 300 is provided with a vertically extending guide post 310, and the other is provided with a guide hole 110 corresponding to the guide post 310. In this embodiment, the closed-loop path is approximately rectangular, and the upper cutting portion 220 and the lower cutting portion 420 respectively form an approximately rectangular upper forming extrusion area and a lower forming extrusion area. The upper cutting portion 220 and the lower cutting portion 420 can cut the aluminum foil sheet into approximately rectangular heat dissipation aluminum foil units.

[0042] Referring to the accompanying drawings, in this embodiment, the upper mold base 100, upper mold core plate 200, lower mold base 300, and lower mold core plate 400 are all rectangular plates. On a projection plane perpendicular to the vertical direction, the upper mold core plate 200 and lower mold core plate 400 have the same external dimensions, and the upper mold base 100 and lower mold base 300 have the same external dimensions.

[0043] The lower mold base 300 has guide posts 310 extending vertically at each of its four corners, and the upper mold base 100 has guide sleeves fixedly installed at each of its four corners. Each guide sleeve has a guide hole 110 that extends vertically through the upper mold base 100. During mold closing, the guide posts 310 can be inserted into the guide holes 110, which provide guidance and positioning, thereby improving the mold closing accuracy of the upper mold core plate 200 and the lower mold core plate 400.

[0044] The upper extrusion part 210 includes a plurality of upper protrusions 211 and upper grooves 212, and the lower extrusion part 410 includes a plurality of lower protrusions 411 and lower grooves 412. The upper protrusions 211 and the lower grooves 412 are aligned vertically and vertically in a one-to-one correspondence.

[0045] The upper protrusion 211 and the upper groove 212 both extend along the first direction, and the lower protrusion 411 and the lower groove 412 both extend along the second direction. The first direction, the second direction, and the up and down direction are all perpendicular to each other.

[0046] In this embodiment, the first direction is the left-right direction, and the second direction is the front-back direction. The upper protrusion 211 and the lower protrusion 411, as well as the upper groove 212 and the lower groove 412, are arranged in a longitudinal and transverse pattern. When the mold is closed, the relatively aligned upper protrusion 211 and the lower groove 412 abut against each other, and the lower protrusion 411 and the upper groove 212 abut against each other, thereby extruding a longitudinal and transverse strip-shaped concave and convex structure on the heat dissipation aluminum foil. The strip-shaped groove array formed by extrusion can significantly increase the contact area between the aluminum plate and the air and improve the heat dissipation efficiency. At the same time, the concave and convex structure can improve the rigidity and strength of the heat dissipation aluminum foil and prevent the aluminum foil from being easily deformed after stamping.

[0047] In other embodiments, the angle between the first direction and the second direction can be other angles to optimize the airflow path and reduce heat retention in the formed concave-convex structure. In other embodiments, the first direction can also be inclined to the left-right direction.

[0048] In this embodiment, both the upper mold core plate 200 and the lower mold core plate 400 include: a plate body 510 and a protrusion 520. The upper groove 212 or the lower groove 412 is provided on the plate body 510. The plate body 510 is also provided with a plurality of positioning grooves. The protrusions 520 are embedded in the positioning grooves one by one to form the upper protrusion 211 or the lower protrusion 411 on the end face of the plate body 510.

[0049] Referring to the accompanying drawings, the two plates 510 of the upper mold core plate 200 and the lower mold core plate 400 are arranged vertically facing each other. The lower end face of the plate 510 of the upper mold core plate 200 is provided with the upper groove 212, and the upper end face of the plate 510 of the lower mold core plate 400 is provided with the lower groove 412. A plurality of protrusions 520 are embedded in the lower end face of the plate 510 of the upper mold core plate 200, so that the lower end of the upper mold core plate 200 forms a plurality of upper protrusions 211. A plurality of protrusions 520 are embedded in the upper end face of the plate 510 of the lower mold core plate 400, so that the upper end face of the plate 510 of the lower mold core plate 400 forms a plurality of lower protrusions 411.

[0050] As shown in the figure, the positioning groove extends vertically through the plate 510. Both the upper mold base 100 and the lower mold base 300 are provided with air guide holes 530 that connect to the positioning groove. The air guide holes 530 allow air to be discharged from the positioning groove, so that the protrusion 520 can be fully installed and embedded in the positioning groove. This avoids the situation where the protrusion 520 and the positioning groove form a closed cavity during installation, trapping air and causing the protrusion 520 to not be installed properly.

[0051] Furthermore, the lower mold component 20 is provided with a ventilation channel 320, which includes a ventilation hole 321 and a ventilation groove 322 that are interconnected. The ventilation hole 321 passes vertically through the lower mold base 300 and the lower mold core plate 400, and the ventilation groove 322 is located on the bottom surface of the lower mold base 300. The lower mold base 300 is fixedly mounted on the substrate to close the lower end of the ventilation groove 322. When the extrusion molding is completed and the mold is opened, high-pressure air is introduced into the ventilation channel 320. The air is sequentially transported along the ventilation groove 322 and the ventilation hole 321 to the space between the lower mold core plate 400 and the heat dissipation aluminum foil product, realizing air blowing demolding of the molded product to reduce the demolding defect rate.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present 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.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention. All such changes, modifications, equivalent alterations or substitutions are included within the scope defined by the claims of this application, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat-dissipating aluminum foil extrusion die, characterized in that: include: The upper die component has an upper extrusion section and an upper cutting section. The upper cutting section extends along a closed-loop path, and the upper extrusion section is disposed downwards within the area enclosed by the upper cutting section. The lower die component is located below the upper die component and has a lower extrusion part and a lower cutting part. The lower cutting part and the upper cutting part are aligned with each other in the vertical direction. The lower extrusion part is arranged facing upward and is located within the area enclosed by the lower cutting part. One of the upper cutting section and the lower cutting section is provided with a rigid cutting edge, and the other is provided with an elastic element that matches the position of the rigid cutting edge.

2. The heat-dissipating aluminum foil extrusion die according to claim 1, characterized in that: The upper cutting portion is provided with a mounting groove extending along the closed-loop path, and a rigid blade is detachably embedded in the mounting groove, the rigid blade forming the rigid cutting edge.

3. The heat-dissipating aluminum foil extrusion die according to claim 2, characterized in that: The lower cutting portion is provided with a slot extending along the closed-loop path, and the elastic element is embedded in the slot.

4. The heat-dissipating aluminum foil extrusion die according to claim 1, characterized in that: The elastic element is insulating paper.

5. The heat-dissipating aluminum foil extrusion die according to claim 1, characterized in that: The upper extrusion part includes multiple upper protrusions and upper grooves, and the lower extrusion part includes multiple lower protrusions and lower grooves. The upper protrusions and lower grooves are aligned vertically and vertically in a one-to-one correspondence, and the lower protrusions and upper grooves are aligned vertically and vertically in a one-to-one correspondence.

6. The heat-dissipating aluminum foil extrusion die according to claim 5, characterized in that: The upper convex strip and the upper groove both extend along the first direction, and the lower convex strip and the lower groove both extend along the second direction. The first direction, the second direction, and the up-down direction are all perpendicular to each other.

7. The heat-dissipating aluminum foil extrusion die according to claim 5, characterized in that: The upper mold component includes an upper mold base, and the lower mold component includes a lower mold base. One of the upper mold base and the lower mold base is provided with a guide post extending vertically, and the other is provided with a guide hole corresponding to the guide post.

8. The heat-dissipating aluminum foil extrusion die according to claim 7, characterized in that: The upper mold component further includes an upper mold core plate disposed on the lower side of the upper mold base, and the upper extrusion part and the upper cutting part are both disposed on the lower side of the upper mold core plate; the lower mold component further includes a lower mold core plate disposed on the upper side of the lower mold base, and the lower extrusion part and the lower cutting part are both disposed on the upper side of the lower mold core plate.

9. The heat-dissipating aluminum foil extrusion die according to claim 8, characterized in that: Both the upper mold core plate and the lower mold core plate include a plate body and protrusions. The upper groove or lower groove is provided on the plate body. The plate body is also provided with multiple positioning grooves. The protrusions are embedded in the positioning grooves one by one to form the upper protrusion or lower protrusion.

10. The heat-dissipating aluminum foil extrusion die according to claim 9, characterized in that: The positioning groove extends vertically through the plate body, and both the upper mold base and the lower mold base are provided with air guide holes that connect to the positioning groove.

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