Switch panel injection mold with cooling function

Abstract

The utility model relates to the technical field of injection molds, in particular to a switch panel injection mold with a cooling function, which comprises an upper mold core and a lower mold core, a mold cavity is formed between the upper mold core and the lower mold core after the upper mold core and the lower mold core are closed, and the size and the shape of the mold cavity are consistent with those of an injection product. A sprue bush penetrating through the upper die plate is arranged in the middle of the upper die plate and communicated with a runner piece, the runner piece comprises a main runner located in the center of the sprue bush and communicated with the sprue bush up and down, the lower portion of the main runner is communicated with a horizontal runner located in the die cavity, and the middle of the horizontal runner is communicated with the lower end of the main runner. First beryllium copper inserts are arranged above and below the middle position of the horizontal runner, the two first beryllium copper inserts are embedded into the upper mold core and the lower mold core correspondingly, and the first beryllium copper insert located on the upper mold core is arranged on the outer side of the sprue bush in a sleeving mode. The risk that the middle of the horizontal flow channel is fused is reduced, and the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a switch panel with a cooling function. Background Art

[0002] An injection mold is a tool for producing plastic products and also a tool for endowing plastic products with a complete structure and precise dimensions; the injection mold process is to inject the heat-melted material into the mold cavity under high pressure, and after cooling and solidifying, a formed product is obtained.

[0003] For example, on June 28, 2024, a patent with the publication number CN118254355A and the name of an injection mold cooling structure and an injection mold was published, including a cooling tank. A liquid storage tank is fixedly installed on the top of the cooling tank. A water pump is fixedly installed at the left end of the top of the liquid storage tank. The input end of the water pump is connected to the inside of the liquid storage tank. A cooling coil is fixedly connected to the output end of the water pump and on the left side of the cooling tank. On both the left and right sides inside the liquid storage tank, multiple groups of cooling plates are fixedly connected. The cooling coil can fully contact the inside of the injection mold while ensuring its own compact structure, so as to quickly complete heat exchange and quickly cool and form the injection material; however, the applicant found that it is relatively difficult for the traditional cooling water channels to achieve uniform cooling of parts, resulting in poor cooling effect. Summary of the Invention

[0004] In view of this, the purpose of the present utility model is to provide an injection mold for a switch panel with a cooling function to solve the problem of poor cooling effect.

[0005] Based on the above purpose, the present utility model provides an injection mold for a switch panel with a cooling function, including an upper template and a lower template located at the lower end of the upper template. An upper mold cavity is opened on the lower end surface of the upper template, and an upper mold core is accommodated in the upper mold cavity. A lower mold cavity is opened on the upper end surface of the lower template, and a lower mold core that cooperates with the upper mold core is accommodated in the lower mold cavity. A mold cavity is formed between the upper mold core and the lower mold core after mold closing. A sprue bushing passing through it is arranged at the middle position of the upper template, and the sprue bushing is communicated with a runner member. The runner member includes a main runner located at the central position of the sprue bushing and communicating with the sprue bushing up and down. The lower part of the main runner is communicated with a horizontal runner located in the mold cavity. The middle part of the horizontal runner is communicated with the lower end of the main runner. First beryllium copper inserts are arranged above and below the middle position of the horizontal runner. The two first beryllium copper inserts are respectively embedded on the upper mold core and the lower mold core. The first beryllium copper insert on the upper mold core is sleeved outside the sprue bushing.

[0006] Optionally, at least one set of flow splitters is connected to both sides of the horizontal flow channel. Each flow splitter includes two auxiliary flow channels symmetrically arranged about the axis of the horizontal flow channel. Nozzles are connected to the ends of the auxiliary flow channels. A second beryllium copper insert embedded in the lower die core is provided at the connection between the horizontal flow channel and the flow splitter.

[0007] Optionally, side beryllium copper inserts are provided on both sides of the second beryllium copper insert. The two side beryllium copper inserts are symmetrically arranged about the axis of the horizontal flow channel. The outside of the nozzle is wrapped by the side beryllium copper inserts.

[0008] Optionally, the horizontal flow channel includes a flat and wide pipe and two side pipes respectively located at both ends of the flat and wide pipe. The middle of the middle flat and wide pipe is connected to the main flow channel. Both ends of the middle flat and wide pipe are respectively connected to the two side pipes. The height of the flat and wide pipe is lower than that of the side pipes, and the width of the flat and wide pipe is greater than that of the side pipes.

[0009] Optionally, a lower slot is provided on one side of the side beryllium copper insert and is opened on the lower end face of the lower die core. A water flow component is accommodated in the lower slot. The water inlet and outlet of the water flow component are both located at the opening of the lower slot. A first water pipe is provided below the lower slot. The water inlet and outlet of the water flow component are both connected to the first water pipe.

[0010] Optionally, the lower slot includes a lower shallow slot, and a lower deep slot is opened in the middle of the lower shallow slot. The depth of the lower deep slot is greater than that of the lower shallow slot. The water inlet and outlet of the water flow component are both located in the lower shallow slot.

[0011] Optionally, the water flow component is a water flow box arranged in cooperation with the lower slot. A partition connected to the inner side wall of the water flow box is provided in the middle of the water flow box. The upper end of the partition is not connected to the top of the inner side wall of the water flow box.

[0012] Optionally, the water flow component is a flow water pipe.

[0013] Advantages of the present utility model: The present utility model provides an injection mold for a switch panel with a cooling function. During injection molding, the molten plastic enters the runner part through the sprue bushing, arrives at the horizontal runner from the main runner in the runner part, then flows towards both ends of the horizontal runner in the middle of the horizontal runner, and finally the molten plastic enters the mold cavity. Then the molten plastic cools to form the corresponding injection molded product. When the molten plastic enters the main runner, the first beryllium copper insert embedded on the upper mold core preliminarily cools the molten plastic in the main runner, reducing the influence of the molten plastic on the runner part. When the molten plastic arrives at the horizontal runner from the main runner, the first beryllium copper insert embedded on the lower mold core cools the middle part of the horizontal runner, reducing the risk of melting in the middle part of the horizontal runner, improving the cooling effect, enhancing the cooling efficiency, and further ensuring the quality and efficiency of the injection molded product. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is the structural schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 the left view structural schematic diagram of

[0017] Figure 3 is Figure 2 the sectional view structural schematic diagram of A - A in

[0018] Figure 4 is the upward view structural schematic diagram of the upper mold core of the present utility model;

[0019] Figure 5 is the downward view structural schematic diagram of the lower mold core of the present utility model;

[0020] Figure 6 is the upward view structural schematic diagram of the lower mold core of the present utility model;

[0021] Figure 7 is the three - dimensional view structural schematic diagram of the lower mold core of the present utility model;

[0022] Figure 8 is the structural schematic diagram of the water flow - through part and the first water pipe of the present utility model being connected;

[0023] Figure 9 is the structural schematic diagram of the runner part, the second beryllium copper insert and the side beryllium copper insert of the present utility model being matched;

[0024] Figure 10 For Figure 9 Schematic diagram of the B-B cross-sectional structure in

[0025] In the figure: 1. Upper template; 2. Upper die slot; 3. Upper die core; 4. Lower template; 5. Lower die slot; 6. Lower die core; 7. Sprue bushing; 8. Runner part; 9. Main runner; 10. Horizontal runner; 11. Sub-runner; 12. Nozzle; 13. First beryllium copper insert; 14. Second beryllium copper insert; 15. Side beryllium copper insert; 16. Lower slot; 161. Lower shallow slot; 162. Lower deep slot; 17. First water pipe; 18. Water flow part. Specific embodiments

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0027] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0028] Such as Figures 1 to 10As shown in the figure, an injection mold for a switch panel with a cooling function includes an upper template 1 and a lower template 4 located at the lower end of the upper template 1. An upper mold cavity 2 is provided on the lower end surface of the upper template 1, and an upper mold core 3 is accommodated in the upper mold cavity 2. A lower mold cavity 5 is provided on the upper end surface of the lower template 4, and a lower mold core 6 that cooperates with the upper mold core 3 is accommodated in the lower mold cavity 5. The upper mold core 3 and the lower mold core 6 correspond to each other. After the upper mold core 3 and the lower mold core 6 are closed, a mold cavity is formed between them. The size and shape of the mold cavity are the same as those of the injection product. During injection molding, the injection product is specifically formed in the mold cavity between the upper mold core 3 and the lower mold core 6. A sprue bushing 7 passing through the upper template 1 is provided at the middle position of the upper template 1. The sprue bushing 7 is connected to a runner part 8. The runner part 8 includes a main runner 9 located at the central position of the sprue bushing 7 and communicating with the sprue bushing 7 up and down. The lower part of the main runner 9 is connected to a horizontal runner 10 located in the mold cavity. The middle part of the horizontal runner 10 is connected to the lower end of the main runner 9. First beryllium copper inserts 13 are provided above and below the middle position of the horizontal runner 10. The two first beryllium copper inserts 13 are respectively embedded on the upper mold core 3 and the lower mold core 6. The first beryllium copper insert 13 on the upper mold core 3 is sleeved outside the sprue bushing 7.

[0029] During injection molding, the molten plastic enters the runner part 8 through the sprue bushing 7, comes to the horizontal runner 10 through the main runner 9 in the runner part 8, then flows in both ends directions of the horizontal runner 10 from the middle of the horizontal runner 10, and finally the molten plastic enters the mold cavity. Then the molten plastic cools to form the corresponding injection product. When the molten plastic enters the main runner 9, the first beryllium copper insert 13 embedded on the upper mold core 3 preliminarily cools the molten plastic in the main runner 9, reducing the influence of the molten plastic on the runner part 8. When the molten plastic comes from the main runner 9 to the horizontal runner 10, the first beryllium copper insert 13 embedded on the lower mold core 6 cools the middle part of the horizontal runner 10, reducing the risk of fusing in the middle part of the horizontal runner 10 and improving the cooling effect.

[0030] At least one set of shunt parts is connected to both sides of the horizontal runner 10. The shunt part includes two auxiliary runners 11 symmetrically arranged about the axis of the horizontal runner 10. The end of the auxiliary runner 11 is connected to a nozzle 12. A second beryllium copper insert 14 embedded on the lower mold core 6 is provided at the connection between the horizontal runner 10 and the shunt part.

[0031] During injection molding, the molten plastic enters the runner part 8 through the sprue bushing 7, arrives at the main runner 9 in the runner part 8, and then comes to the horizontal runner 10. Then it flows towards both ends of the horizontal runner 10 in the middle of the horizontal runner 10. Finally, the molten plastic enters the multiple nozzles 12, and the molten plastic is respectively injected into the mold cavity by the multiple nozzles 12. Then the molten plastic cools to form the corresponding injection molded product. The simultaneous injection through the multiple nozzles 12 can make the feeding of the molten plastic more uniform. By reasonably setting the positions of the main runner 9, the horizontal runner 10, the auxiliary runner 11 and the nozzles 12, the molten plastic in the mold cavity can be made uniform, and an injection molded product with uniform texture can be obtained. The position distributions of the multiple nozzles 12 do not interfere with each other and ensure the overall injection balance. When the molten plastic reaches both sides of the horizontal runner 10, the second beryllium copper insert 14 cools it.

[0032] Both sides of the second beryllium copper insert 14 are provided with side beryllium copper inserts 15. The two side beryllium copper inserts 15 are symmetrically arranged about the axis of the horizontal runner 10. The outside of the nozzle 12 is wrapped by the side beryllium copper insert 15. The setting of the side beryllium copper insert 15 further reduces the temperature of the molten plastic entering the mold cavity and improves the cooling effect.

[0033] The horizontal runner 10 includes a flat and wide pipe and two side pipes respectively located at both ends of the flat and wide pipe. The middle of the middle flat and wide pipe is communicated with the main runner 9. Both ends of the middle flat and wide pipe are respectively communicated with the two side pipes. The height of the flat and wide pipe is lower than that of the side pipes, and the width of the flat and wide pipe is greater than that of the side pipes. The setting of the flat and wide pipe increases its contact area with the two first beryllium copper inserts 13, improves the cooling effect, and thus improves the service life of the runner part 8.

[0034] One side of the side beryllium copper insert 15 is provided with a lower slot 16 opened on the lower end face of the lower mold core 6. A water flow member 18 is accommodated in the lower slot 16. The water inlet and outlet of the water flow member 18 are both located at the opening of the lower slot 16. A first water pipe 17 is arranged below the lower slot 16. The water inlet and outlet of the water flow member 18 are both communicated with the first water pipe 17. In order to facilitate further cooling of the molten plastic about to enter the nozzle 12, the water in the first water pipe 17 enters the water flow member 18 and then is discharged into the first water pipe 17 for further cooling treatment.

[0035] The lower slot 16 includes a lower shallow slot 161, and a lower deep slot 162 is formed in the middle of the lower shallow slot 161. The depth of the lower deep slot 162 is greater than that of the lower deep slot 162. The water inlet and the water outlet of the water flow member 18 are both located in the lower shallow slot 161. On the basis of ensuring that the molten plastic has a certain temperature, it is cooled. The lower deep slot 162 is located on one side of the end of the horizontal flow channel 10, and the lower shallow slot 161 is located in the direction of the horizontal flow channel 10.

[0036] The water flow member 18 is a water flow box arranged in cooperation with the lower slot 16. A partition connected to the inner side wall of the water flow box is arranged in the middle of the water flow box, and the upper end of the partition is not connected to the top of the inner side wall of the water flow box.

[0037] In addition, the water flow member 18 can also be replaced by a flow water pipe.

[0038] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0039] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An injection mold for a switch panel with a cooling function, comprising an upper template (1) and a lower template (4) located at the lower end of the upper template (1). An upper mold cavity (2) is formed on the lower end face of the upper template (1), and an upper mold core (3) is accommodated in the upper mold cavity (2). A lower mold cavity (5) is formed on the upper end face of the lower template (4), and a lower mold core (6) that cooperates with the upper mold core (3) is accommodated in the lower mold cavity (5). A mold cavity is formed between the upper mold core (3) and the lower mold core (6) after mold clamping. A sprue bushing (7) that penetrates the upper template (1) is arranged at the middle position of the upper template (1), and it is characterized in that, The sprue bushing (7) is connected to a runner component (8). The runner component (8) includes a main runner (9) located at the central position of the sprue bushing (7) and communicating with the sprue bushing (7) vertically. The lower part of the main runner (9) is connected to a horizontal runner (10) located in the mold cavity. The middle part of the horizontal runner (10) is connected to the lower end of the main runner (9). Above and below the middle position of the horizontal runner (10), first beryllium copper inserts (13) are provided. The two first beryllium copper inserts (13) are respectively embedded on the upper mold core (3) and the lower mold core (6). The first beryllium copper insert (13) on the upper mold core (3) is sleeved outside the sprue bushing (7).

2. The injection mold for a switch panel with a cooling function according to claim 1, characterized in that, At least one set of shunt components is connected to both sides of the horizontal runner (10). The shunt component includes two auxiliary runners (11) symmetrically arranged about the axis of the horizontal runner (10). The end of the auxiliary runner (11) is connected to a nozzle (12). A second beryllium copper insert (14) embedded on the lower mold core (6) is provided at the connection between the horizontal runner (10) and the shunt component.

3. The injection mold for a switch panel with a cooling function according to claim 2, characterized in that, Side beryllium copper inserts (15) are provided on both sides of the second beryllium copper insert (14). The two side beryllium copper inserts (15) are symmetrically arranged about the axis of the horizontal runner (10). The outside of the nozzle (12) is wrapped by the side beryllium copper inserts (15).

4. A injection mold for a switch panel with a cooling function according to any one of claims 1-3, characterized in that, The horizontal runner (10) includes a flat and wide pipe and two side pipes respectively located at both ends of the flat and wide pipe. The middle part of the middle flat and wide pipe is connected to the main runner (9). The two ends of the middle flat and wide pipe are respectively connected to the two side pipes. The height of the flat and wide pipe is lower than that of the side pipes, and the width of the flat and wide pipe is greater than that of the side pipes.

5. The injection mold for a switch panel with a cooling function according to claim 3, characterized in that, On one side of the side beryllium copper insert (15), a lower slot (16) opened on the lower end surface of the lower mold core (6) is provided. A water flow component (18) is accommodated in the lower slot (16). The water inlet and the water outlet of the water flow component (18) are both located at the opening of the lower slot (16). A first water pipe (17) is provided below the lower slot (16). The water inlet and the water outlet of the water flow component (18) are both connected to the first water pipe (17).

6. The injection mold for a switch panel with a cooling function according to claim 5, characterized in that, The lower slot (16) includes a lower shallow slot (161). A lower deep slot (162) is opened in the middle of the lower shallow slot (161). The depth of the lower deep slot (162) is greater than that of the lower deep slot (162). The water inlet and the water outlet of the water flow component (18) are both located in the lower shallow slot (161).

7. The injection mold for a switch panel with a cooling function according to claim 6, characterized in that, The water flow component (18) is a water flow box matched with the lower slot (16). A partition connected to the inner side wall of the water flow box is provided in the middle of the water flow box. The upper end of the partition is not connected to the top of the inner side wall of the water flow box.

8. A injection mold for switch panel with cooling function according to claim 6, characterized in that, The water flow component (18) is a flow water pipe.

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