Drawing die cooling device and drawing die

Abstract

The utility model relates to the technical field of drawing dies, and discloses a drawing die cooling device and a drawing die, the drawing die cooling device comprises: a female die, one end of which in the height direction is provided with a mounting groove; the insert core is embedded in the mounting groove; the female die is provided with a cooling flow path, the cooling flow path is arranged around the insert core in the circumferential direction, a cooling medium is suitable for flowing in the cooling flow path, and the cooling medium is suitable for cooling the insert core. According to the drawing die cooling device provided by the utility model, the cooling flow path is arranged on the female die, and the cooling medium is introduced into the cooling flow path, so that the heat of the insert core is taken away in time through the cooling medium, the insert core and the drawing die are cooled and radiated in time, the temperature of the die is prevented from rising, and the service life of the die is prolonged. On one hand, the influence on the size of a die part is avoided, the stability of the stretching size of a product is guaranteed, on the other hand, zinc powder on the surface of a galvanized material of the product is prevented from falling off, and obvious drawing marks and lines are effectively prevented from being generated on the surface of the product.

Description

Technical Field

[0001] This utility model relates to the field of stretching die technology, specifically to a stretching die cooling device and a stretching die. Background Technology

[0002] In existing stretching dies, during the stretching process of products such as housings, a large amount of heat is generated due to the deformation and thinning of the product material, which cannot be dissipated in time and tends to concentrate on the corresponding die, causing the die temperature to rise rapidly. This increased die temperature has two main consequences: First, due to the thermal expansion and contraction of the die material, the dimensions of the die parts will be affected. For example, if the die cavity size increases, the product size will change accordingly, potentially leading to dimensional instability. Second, excessively high die cavity temperatures can cause zinc powder on the galvanized material surface of the product to detach, adhering to the inner surface of the die and hardening, resulting in scratches and roughening of the product. Utility Model Content

[0003] In view of this, the present invention provides a stretching die cooling device and a stretching die to solve the problem that the existing lithium stretching die cooling devices cannot dissipate a large amount of heat generated during the stretching process, resulting in a rapid increase in the temperature of the die.

[0004] In a first aspect, this utility model provides a cooling device for a stretching die, comprising:

[0005] A mounting groove is formed at one end of the die along its height direction;

[0006] Insert, embedded in the mounting slot;

[0007] The die is provided with a cooling flow path, which is arranged around the insert in the circumference. The cooling flow path is suitable for the flow of cooling medium, which is suitable for cooling the insert.

[0008] Beneficial effects: The stretching die cooling device provided by this utility model sets a cooling flow path on the die cavity and introduces a cooling medium into the cooling flow path to remove the heat of the insert in time, thereby achieving timely cooling and heat dissipation of the insert and stretching die, avoiding the temperature rise of the die. On the one hand, it avoids the impact on the dimensions of the die parts and ensures the stability of the product stretching dimensions. On the other hand, it prevents zinc powder from falling off the surface of the galvanized material of the product, thus preventing zinc powder from adhering to the inner surface of the die cavity and forming spur-like objects that would cause product scratches and roughening. It effectively prevents obvious scratches and textures from appearing on the product surface, ensuring the product appearance qualification rate. Furthermore, it achieves internal heat dissipation of multi-station stretching dies, with a more ideal heat dissipation and cooling effect.

[0009] In one alternative embodiment, a cooling groove is formed on the side of the die near the insert; the outer peripheral wall of the insert and the inner wall of the cooling groove together form a cooling flow path.

[0010] Beneficial effects: By opening a cooling groove on the side of the die close to the insert, and after assembly, the outer peripheral wall of the insert and the inner wall of the cooling groove together form a cooling flow path, which can not only ensure timely cooling of the insert, but also reduce the processing difficulty and processing cost of the cooling flow path.

[0011] In one alternative embodiment, the die cavity is further provided with a first flow channel and a second flow channel, the first flow channel being adapted to connect the inlet of the cooling flow path to the outlet of an external cold source, and the second flow channel being adapted to connect the outlet of the cooling flow path to the inlet of an external cold source.

[0012] Beneficial effects: This creates a circulating cooling loop between the cooling flow path and the external cold source, thereby achieving continuous circulating cooling of the insert and the stretching die, which helps to enhance the cooling and heat dissipation effect and ensures that the temperature of the stretching die is always within the set range.

[0013] In one alternative embodiment, the stretching die cooling device further includes a kit that is detachably connected to the die cavity;

[0014] The kit has a third flow channel opposite to the first flow channel, which is suitable for connecting the first flow channel to the output end of an external cold source;

[0015] The kit has a fourth flow channel opposite to the second flow channel, which is suitable for connecting the second flow channel to the input of an external cold source.

[0016] Beneficial effects: By creating a third and fourth flow channel on the kit, the third flow channel is connected to the first flow channel, and the fourth flow channel is connected to the second flow channel. Furthermore, by disassembling and connecting the kit to the die, it not only reduces the processing difficulty of the flow channels but also facilitates disassembly, maintenance, and cleaning.

[0017] In one alternative embodiment, the kit is provided with a stepped hole, and the end of the die away from the mounting groove along the height direction forms a stepped portion; the stepped portion is embedded in the stepped hole.

[0018] Beneficial effect: This avoids radial misalignment between the kit and the die, ensuring coaxiality between the kit and the die.

[0019] In one optional embodiment, the die cavity is further provided with a first positioning hole, and the kit is further provided with a second positioning hole opposite to the first positioning hole. The second positioning hole is adapted to be aligned with the first positioning hole to position the kit and the die cavity.

[0020] Beneficial effect: This ensures the alignment between the third flow channel and the first flow channel, as well as the alignment between the fourth flow channel and the second flow channel.

[0021] In one alternative embodiment, the stretching die cooling device further includes a first connector and a second connector, which are disposed on the outer peripheral wall of the kit; one end of the first connector is connected to the third flow channel, and the other end is adapted to be connected to the output end of an external cold source; one end of the second connector is connected to the fourth flow channel, and the other end is adapted to be connected to the input end of an external cold source.

[0022] Beneficial effects: It can form a circulating cooling loop between the cooling flow path and the external cold source, thereby achieving continuous circulating cooling of the insert and stretching die, and it is also easy to disassemble and maintain.

[0023] In one alternative embodiment, a first mounting hole and a second mounting hole are formed on the outer peripheral wall of the kit; the first mounting hole communicates with a third flow channel and is adapted to be threadedly connected to a first connector; the second mounting hole communicates with a fourth flow channel and is adapted to be threadedly connected to a second connector.

[0024] Beneficial effects: This enables the disassembly and reassembly of the first and second connectors with the kit, facilitating disassembly, maintenance, and replacement.

[0025] In one alternative embodiment, the stretching die cooling device further includes a cooler connected to an external cold source, the cooler being adapted to cool the cooling medium.

[0026] Beneficial effects: By connecting the cooler to an external cold source, the cooler can cool the cooling medium, thereby increasing the temperature difference between the cooling medium and the stretching die. This enhances the cooling and heat dissipation effect and ensures that the temperature of the stretching die remains within the set range.

[0027] Secondly, this utility model also provides a stretching die, including: a battery body, and a stretching die cooling device as described above.

[0028] Beneficial effects: The drawing die of the second aspect includes the cooling device of the drawing die of the first aspect, therefore, the drawing die of the second aspect includes all the beneficial effects of the cooling device of the drawing die of the first aspect. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram illustrating the working principle of a stretching die cooling device according to an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram illustrating the cooling medium circulation principle of a stretching die cooling device according to an embodiment of the present invention.

[0032] Figure 3 for Figure 1 Sectional view of section AA;

[0033] Figure 4 This is a cross-sectional view of the concave die of a stretching die cooling device according to an embodiment of the present utility model;

[0034] Figure 5 for Figure 1 Sectional view of section BB;

[0035] Figure 6 for Figure 5 A cross-sectional view of the middle kit.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Die cavity; 101. Mounting groove; 102. Cooling groove; 103. First positioning hole; 11. Cooling flow path; 12. First flow channel; 13. Second flow channel; 14. Stepped section;

[0038] 20. Enter the child;

[0039] 30. External cold source;

[0040] 40. Kit; 401. Stepped hole; 402. Second positioning hole; 403. First mounting hole; 404. Second mounting hole; 41. Third flow channel; 42. Fourth flow channel;

[0041] 51. First connector; 52. Second connector;

[0042] 60. Refrigerator. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] The following is combined Figures 1 to 6The following describes embodiments of the present invention.

[0045] According to an embodiment of the present invention, a cooling device for a stretching die is provided, comprising:

[0046] Die 10, please refer to Figure 4 As shown, an installation groove 101 is formed at one end in the height direction;

[0047] Please combine the 20th entry with the 2nd entry. Figure 3 As shown, the insert 20 is embedded in the mounting slot 101;

[0048] The die 10 is provided with a cooling flow path 11, please combine it with the mold. Figure 2 As shown, the cooling flow path 11 is arranged circumferentially around the insert 20, and the cooling flow path 11 is suitable for the flow of cooling medium, which is suitable for cooling the insert 20.

[0049] The stretching die cooling device provided by this utility model sets a cooling flow path 11 on the die cavity 10 and introduces a cooling medium into the cooling flow path 11 to remove the heat of the insert 20 in time, thereby achieving timely cooling and heat dissipation of the insert 20 and the stretching die, avoiding the temperature rise of the die. On the one hand, it avoids affecting the size of the die parts and ensures the stability of the product stretching dimensions. On the other hand, it avoids the zinc powder on the surface of the galvanized material of the product from falling off, thereby avoiding the zinc powder adhering to the inner surface of the die cavity to form spur-like objects, causing product scratches and roughness. It effectively prevents obvious scratches and textures from appearing on the product surface, ensuring the product appearance qualification rate. Furthermore, it achieves internal heat dissipation of multi-station stretching dies, with a more ideal heat dissipation and cooling effect.

[0050] Furthermore, the cooling medium can be cooling water.

[0051] In some embodiments, see Figure 4 As shown, a cooling groove 102 is formed on the side of the die 10 near the insert 20; please refer to the diagram. Figure 3 As shown, the outer peripheral wall of the insert 20 and the inner wall of the cooling tank 102 together form a cooling flow path 11.

[0052] It should be noted that during the assembly process, the die 10 can be preheated so that the inner diameter of the die 10 increases due to thermal expansion and contraction. At this time, the insert 20 is assembled into the mounting groove 101. After the die 10 cools down, the inner diameter of the die 10 shrinks, thereby achieving a tight fit between the die 10 and the insert 20, and thus ensuring the sealing of the cooling flow path 11.

[0053] In this embodiment, a cooling groove 102 is formed on the side of the die 10 near the insert 20, and after assembly, the outer peripheral wall of the insert 20 and the inner wall of the cooling groove 102 are combined to form a cooling flow path 11. This can ensure timely cooling of the insert 20 and reduce the processing difficulty and cost of the cooling flow path 11.

[0054] In some embodiments, see Figure 5 As shown, the die 10 is also provided with a first flow channel 12 and a second flow channel 13. The first flow channel 12 is adapted to connect the input port of the cooling flow path 11 to the output end of the external cold source 30, and the second flow channel 13 is adapted to connect the output port of the cooling flow path 11 to the input end of the external cold source 30, so that a circulating cooling loop is formed between the cooling flow path 11 and the external cold source 30, thereby realizing continuous circulating cooling of the insert 20 and the stretching die, which is beneficial to enhance the cooling and heat dissipation effect and ensure that the temperature of the stretching die is always within the set range.

[0055] In some embodiments, see Figure 5 As shown, the stretching die cooling device also includes a kit 40, which can be detachably connected to the die 10 by bolts and / or screws;

[0056] The kit 40 has a third flow channel 41 opposite to the first flow channel 12, and the third flow channel 41 is adapted to connect the first flow channel 12 to the output end of the external cold source 30.

[0057] The kit 40 has a fourth flow channel 42 opposite to the second flow channel 13, and the fourth flow channel 42 is adapted to connect the second flow channel 13 to the input terminal of the external cold source 30.

[0058] In this embodiment, by forming a third flow channel 41 and a fourth flow channel 42 on the kit 40, the third flow channel 41 is connected to the first flow channel 12 and the fourth flow channel 42 is connected to the second flow channel 13. By disassembling and connecting the kit 40 to the die 10, it is not only beneficial to reduce the processing difficulty of the flow channels, but also to facilitate disassembly, maintenance and cleaning.

[0059] In some embodiments, see Figure 6 As shown, kit 40 has stepped holes 401; please assemble it accordingly. Figure 4 As shown, a stepped portion 14 is formed at one end of the die 10 away from the mounting groove 101 along the height direction; the stepped portion 14 is embedded in the stepped hole 401, thereby avoiding radial offset between the kit 40 and the die 10 and ensuring the coaxiality between the kit 40 and the die 10.

[0060] In some embodiments, see Figure 3As shown, the die 10 is also provided with a first positioning hole 103, and the kit 40 is also provided with a second positioning hole 402 opposite to the first positioning hole 103. The second positioning hole 402 is adapted to be aligned with the first positioning hole 103 to position the kit 40 and the die 10, thereby ensuring the alignment between the third flow channel 41 and the first flow channel 12 and the alignment between the fourth flow channel 42 and the second flow channel 13.

[0061] In some embodiments, please combine Figure 1 and Figure 5 As shown, the stretching die cooling device also includes a first connector 51 and a second connector 52, which are disposed on the outer peripheral wall of the kit 40. One end of the first connector 51 is connected to the third flow channel 41, and the other end is adapted to be connected to the output end of the external cold source 30. One end of the second connector 52 is connected to the fourth flow channel 42, and the other end is adapted to be connected to the input end of the external cold source 30. This enables the cooling flow path 11 to form a circulating cooling loop with the external cold source 30, thereby achieving continuous circulating cooling of the insert 20 and the stretching die, and also facilitates disassembly and maintenance.

[0062] In some embodiments, see Figure 6 As shown, a first mounting hole 403 and a second mounting hole 404 are formed on the outer peripheral wall of the kit 40; the first mounting hole 403 is connected to the third flow channel 41 and is adapted to be threadedly connected to the first connector 51; the second mounting hole 404 is connected to the fourth flow channel 42 and is adapted to be threadedly connected to the second connector 52, thereby realizing the disassembly and connection between the first connector 51 and the second connector 52 and the kit 40, which facilitates disassembly, maintenance and replacement.

[0063] In some embodiments, please combine Figure 1 and Figure 2 As shown, the stretching die cooling device also includes a cooler 60, which is connected to an external cold source 30. The cooler 60 is adapted to cool the cooling medium.

[0064] In this embodiment, by connecting the cooler 60 to the external cold source 30, the cooler 60 cools the cooling medium, thereby increasing the temperature difference between the cooling medium and the stretching die, which helps to enhance the cooling and heat dissipation effect and ensures that the temperature of the stretching die is always within the set range.

[0065] According to an embodiment of the present invention, another aspect provides a stretching die, comprising: a battery body, and a stretching die cooling device as described above.

[0066] The stretching die in this solution includes the aforementioned stretching die cooling device; therefore, the stretching die in this solution includes all the beneficial effects of the aforementioned stretching die cooling device.

[0067] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A cooling device for a stretching die, characterized in that, include: A cavity die (10) has an installation groove (101) formed at one end in the height direction; Insert (20) is embedded in the mounting groove (101); The die (10) is provided with a cooling flow path (11), which is arranged circumferentially around the insert (20). The cooling flow path (11) is suitable for the flow of a cooling medium, which is suitable for cooling the insert (20).

2. The stretching die cooling device according to claim 1, characterized in that, A cooling groove (102) is formed on the side of the die (10) near the insert (20); the outer peripheral wall of the insert (20) and the inner wall of the cooling groove (102) together form the cooling flow path (11).

3. The stretching die cooling device according to claim 1, characterized in that, The die (10) is also provided with a first flow channel (12) and a second flow channel (13). The first flow channel (12) is adapted to connect the input port of the cooling flow path (11) to the output end of the external cold source (30). The second flow channel (13) is adapted to connect the output port of the cooling flow path (11) to the input end of the external cold source (30).

4. The stretching die cooling device according to claim 3, characterized in that, The stretching die cooling device also includes a kit (40), which is detachably connected to the die cavity (10); The kit (40) has a third flow channel (41) opposite to the first flow channel (12), and the third flow channel (41) is adapted to connect the first flow channel (12) to the output end of the external cold source (30); The kit (40) has a fourth flow channel (42) opposite to the second flow channel (13), and the fourth flow channel (42) is adapted to connect the second flow channel (13) to the input end of the external cold source (30).

5. The stretching die cooling device according to claim 4, characterized in that, The kit (40) is provided with a stepped hole (401), and the end of the die (10) away from the mounting groove (101) in the height direction forms a step portion (14); the step portion (14) is embedded in the stepped hole (401).

6. The stretching die cooling device according to claim 4, characterized in that, The die (10) is provided with a first positioning hole (103), and the kit (40) is provided with a second positioning hole (402) opposite to the first positioning hole (103). The second positioning hole (402) is adapted to be aligned with the first positioning hole (103) to position the kit (40) and the die (10).

7. The stretching die cooling device according to claim 4, characterized in that, The stretching die cooling device further includes a first connector (51) and a second connector (52), which are disposed on the outer peripheral wall of the kit (40); one end of the first connector (51) is connected to the third flow channel (41), and the other end is adapted to be connected to the output end of the external cold source (30); one end of the second connector (52) is connected to the fourth flow channel (42), and the other end is adapted to be connected to the input end of the external cold source (30).

8. The stretching die cooling device according to claim 7, characterized in that, The outer peripheral wall of the kit (40) is provided with a first mounting hole (403) and a second mounting hole (404); the first mounting hole (403) is connected to the third flow channel (41) and is adapted to be threadedly connected to the first connector (51); the second mounting hole (404) is connected to the fourth flow channel (42) and is adapted to be threadedly connected to the second connector (52).

9. The stretching die cooling device according to any one of claims 3-8, characterized in that, The stretching die cooling device further includes a cooler (60), which is connected to the external cold source (30) and is adapted to cool the cooling medium.

10. A stretching die, characterized in that, include: The battery body, and the stretching die cooling device as described in any one of claims 1 to 9 above.

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