Die cooling structure and die
By setting up a cooling die core and a liquid supply module in the mold, the problem of difficult time cooling of the mold cooling structure is solved, efficient heat dissipation of the workpiece is achieved, and processing accuracy is improved.
Patent Information
- Application Number
- CN202422142814.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing mold cooling structure is difficult to cool the products inside the mold in time, resulting in a decrease in product accuracy and it is difficult to meet the molding needs of high-precision plastic products.
The cooling mold core and the liquid supply module are adopted. The cooling mold core is equipped with a cooling chamber. The liquid supply module is connected to the liquid inlet channel and the liquid outlet channel. The coolant enters the cooling chamber through the liquid inlet channel and is discharged from the liquid outlet channel, and is directly in contact with the workpiece for heat dissipation.
It realizes timely heat dissipation of workpieces, improves processing accuracy, especially the forming quality of high-precision products such as gears.
Smart Images
Figure CN223045049U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, and particularly relates to a mold cooling structure and a mold. Background Art
[0002] A gear mold is a precision mold with very high cooling requirements. During the molding process, in addition to successfully producing the product from the injection molding machine, the product also needs to meet dimensional requirements. Especially under high-speed meshing with a worm wheel and a worm (noise below 40 decibels at 100 revolutions per minute), the roundness and coaxiality of the gear are particularly important (required to be 0.01). During the molding process, the requirement for the mold waterway is to be able to cool evenly.
[0003] For example, a cooling mold disclosed in a patent document with the publication number CN218857441U includes a mold body, a core hole, and a cooling channel; the core hole and the cooling channel are both arranged inside the mold body, and the core hole is used to accommodate a core rod. The cooling channel includes a water inlet section, a surrounding section, and a water outlet section that are connected in sequence. The surrounding section is arranged outside the core hole. The water inlet section is used to introduce cooling liquid, and the water outlet section is used to discharge the cooling liquid, so that the cooling liquid flows in the surrounding section, thereby uniformly conducting heat to the outer wall of the core rod in the core hole, and thus cooling the core rod on the circumferential side of the core rod.
[0004] Although the existing cooling structure can cool the mold core of the mold, it is difficult to cool the product inside the mold core in a timely manner, and it is easy to cause local temperature differences in the product, resulting in a reduction in the accuracy of the product, and it is difficult to meet the molding requirements of high-precision plastic products such as gears. Content of the Utility Model
[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a mold cooling structure and a mold to solve the technical problem that it is difficult for the existing mold cooling structure to cool the product in a timely manner.
[0006] To achieve the above technical purpose, the utility model has taken the following technical solutions:
[0007] In the first aspect, the utility model provides a mold cooling structure, including:
[0008] A cooling mold core, which is used to be arranged inside an insert and connected to an injection cavity, and a cooling cavity is arranged inside the cooling mold core; and
[0009] A liquid supply module, which is connected to the cooling mold core, is provided with a liquid inlet channel and a liquid outlet channel, both the liquid inlet channel and the liquid outlet channel are communicated with the cooling cavity, the liquid inlet channel is used for supplying cooling liquid into the cooling cavity, and the liquid outlet channel is used for discharging the cooling liquid in the cooling cavity.
[0010] In some embodiments, the liquid supply module includes a coolant pipe and a spacer. The spacer is connected to the cooling die core. The spacer is disposed inside the coolant pipe and divides the interior of the coolant pipe to form the liquid inlet channel and the liquid outlet channel.
[0011] In some embodiments, the mold cooling structure further includes a coolant distribution seat. The lower end of the coolant pipe is fixed to the coolant distribution seat. The coolant distribution seat is provided with a coolant flow channel, and the coolant flow channel communicates with the liquid inlet channel and the liquid outlet channel.
[0012] In some embodiments, the coolant distribution seat is provided with a mounting groove, and the lower end of the coolant pipe is provided with a mounting protrusion, and the mounting protrusion is installed in the mounting groove.
[0013] In some embodiments, the coolant distribution seat is further provided with a connection channel, and both ends of the connection channel communicate with the interior of the coolant flow channel and the coolant pipe respectively.
[0014] In some embodiments, the mold cooling structure further includes a barrier member. The barrier member is installed in the connection channel and blocks the coolant flow channel. The barrier member divides the connection channel to form an inlet connection channel and an outlet connection channel. The inlet connection channel communicates with the liquid inlet channel, and the outlet connection channel communicates with the liquid outlet channel.
[0015] In some embodiments, the mold cooling structure further includes a cavity spacer. The cavity spacer is disposed in the cooling cavity and divides the cooling cavity to form an inlet cavity and an outlet cavity. The inlet cavity and the outlet cavity communicate with the liquid inlet channel and the liquid outlet channel respectively.
[0016] In some embodiments, the cooling die core is provided with an extension section for extending into the injection cavity.
[0017] In a second aspect, the present invention further provides a mold, including a mold body, an insert, and a mold cooling structure. The insert is installed on the mold body, and the cooling die core is located inside the insert.
[0018] In some embodiments, the mold further includes a plurality of ejector pins. Each ejector pin surrounds the periphery of the cooling die core and penetrates through the insert for supporting a workpiece.
[0019] Compared with the prior art, the beneficial effects of the mold cooling structure and the mold provided by the present utility model include: The mold cooling structure is provided with a cooling die core and a liquid supply module. A cooling cavity is arranged inside the cooling die core. The liquid supply module is connected to the cooling die core. The liquid supply module is provided with an inlet channel and an outlet channel. Both the inlet channel and the outlet channel are communicated with the cooling cavity. When this cooling structure is arranged in the mold, the cooling die core is installed on the inner side of the die core. The coolant enters the cooling cavity through the inlet channel, takes away the heat of the cooling die core, and then exits through the outlet channel. Since the cooling die core is connected to the injection cavity, the cooling die core can be in direct contact with the workpiece, thereby directly dissipating heat from the workpiece, achieving timely heat dissipation of the workpiece, and thus improving the processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic structural diagram of the mold cooling structure provided by an embodiment of the present utility model;
[0021] Figure 2 is a schematic structural diagram of the mold provided by an embodiment of the present utility model;
[0022] Figure 3 is a front view of the mold cooling structure provided by an embodiment of the present utility model;
[0023] Figure 4 is Figure 3 a cross-sectional view taken along line A-A in
[0024] Figure 5 is Figure 4 a partial enlarged view at A in
[0025] DESCRIPTION OF THE REFERENCE NUMERALS:
[0026] 10 - cooling die core, 11 - cooling cavity, 12 - extension section
[0027] 20 - liquid supply module, 21 - inlet channel, 22 - outlet channel
[0028] 23 - coolant pipe, 24 - spacer, 25 - mounting projection
[0029] 30 - cavity spacer, 40 - coolant distribution seat, 41 - coolant flow channel
[0030] 42 - mounting groove, 43 - connection channel, 50 - barrier
[0031] 60 - mold body, 61 - injection cavity, 70 - insert
[0032] 80 - ejector pin, 111 - inlet chamber, 112 - outlet chamber
[0033] 431 - inlet connection channel, 432 - outlet connection channel. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0034] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0035] In order to solve the technical problem that it is difficult to provide cooling for parts in a timely manner during the mold processing process, the present utility model provides a mold cooling structure and a mold. By setting this cooling structure, the mold can cool the workpiece in a timely manner during the injection molding process, thereby improving the processing quality of the parts.
[0036] The mold cooling structure of an embodiment of the present utility model, as Figure 1 and 4 shown in -5, includes a cooling mold core 10 and a liquid supply module 20. The cooling mold core 10 is used to be arranged inside the insert 70 and connected to the injection cavity 61. A cooling cavity 11 is arranged inside the cooling mold core 10; the liquid supply module 20 is connected to the cooling mold core 10 and is provided with a liquid inlet channel 21 and a liquid outlet channel 22. Both the liquid inlet channel 21 and the liquid outlet channel 22 are communicated with the cooling cavity 11. The liquid inlet channel 21 is used for supplying cooling liquid into the cooling cavity 11, and the liquid outlet channel 22 is used for allowing the cooling liquid in the cooling cavity 11 to flow out.
[0037] Specifically, the mold cooling structure is provided with a cooling mold core 10 and a liquid supply module 20. A cooling cavity 11 is arranged inside the cooling mold core 10. The liquid supply module 20 is connected to the cooling mold core 10. The liquid supply module 20 is provided with a liquid inlet channel 21 and a liquid outlet channel 22. Both the liquid inlet channel 21 and the liquid outlet channel 22 are communicated with the cooling cavity 11. When this cooling structure is arranged in the mold, the cooling mold core 10 is installed inside the mold core. After the cooling liquid enters the cooling cavity 11 through the liquid inlet channel 21 and takes away the heat of the cooling mold core 10, it flows out through the liquid outlet channel 22. Since the cooling mold core 10 is connected to the injection cavity 61, the cooling mold core 10 can be in direct contact with the workpiece, thereby directly dissipating heat from the workpiece, realizing timely heat dissipation of the workpiece, and thus improving the processing accuracy of the workpiece.
[0038] In this embodiment, the insert 70 is the bottom peripheral structure of the injection cavity 61.
[0039] It can be understood that the cooling mold core 10 can be in the shape of a cylinder, a sphere, a square, etc. with an internal cavity structure. Its shape can be adaptively set according to the shape of the part to be processed so as to keep the temperature of each part of the part uniform.
[0040] In one of the embodiments, as Figure 4-5As shown, the mold cooling structure further includes a cavity spacer 30. The cavity spacer 30 is disposed in the cooling cavity 11 and divides the cooling cavity 11 into a liquid inlet cavity 111 and a liquid outlet cavity 112. The liquid inlet cavity 111 and the liquid outlet cavity 112 are respectively communicated with the liquid inlet channel 21 and the liquid outlet channel 22. Specifically, by dividing the cooling cavity 11 into the liquid inlet cavity 111 and the liquid outlet cavity 112, the cavity spacer 30 enables the coolant to first enter the liquid inlet cavity 111 through the liquid inlet channel 21, then enter the liquid outlet cavity 112 after turning back at the end of the cooling mold, and then flow out through the liquid outlet channel 22, thereby ensuring that the newly entered coolant can be closer to the workpiece and strengthening the cooling of the workpiece.
[0041] In one embodiment, as Figure 1 and 4 shown in FIG. -5, the cooling die core 10 is provided with an extension section 12. The extension section 12 is used to extend into the injection cavity 61. Specifically, by extending into the injection cavity 61, the extension section 12 enables the cooling die core 10 to form an annular structure with the diameter of the insert 70, thereby being able to adapt to the processing of annular workpieces and enabling the cooling die core 10 to directly contact the inner side of the workpiece, effectively ensuring the heat dissipation efficiency of the workpiece.
[0042] In this embodiment, taking the injection molding of a gear as an example, the injection cavity 61 forms the body structure of the gear, and an annular cavity is formed between the extension section 12 and the cooling die core 10 to form the bushing structure of the gear. When injecting the gear, the extension section 12 is located inside the gear and directly contacts the gear, realizing efficient heat dissipation of the gear, thereby ensuring the processing efficiency of the gear.
[0043] It can be understood that the liquid supply module 20 can be two liquid inlet pipes and liquid outlet pipes connected to the cooling die core 10 and communicating with the cooling cavity 11, or can be the liquid inlet channel 21 and the liquid outlet channel 22 provided on the mold.
[0044] In one embodiment, as Figure 4-5 shown, the liquid supply module 20 includes a coolant pipe 23 and a spacer 24. The spacer 24 is connected to the cooling die core 10. The spacer 24 is disposed inside the coolant pipe 23 and divides the interior of the coolant pipe 23 into a liquid inlet channel 21 and a liquid outlet channel 22. Specifically, by providing the coolant pipe 23 and the spacer 24 structure disposed in the coolant pipe 23, the liquid supply module 20 structure with the liquid inlet channel 21 and the liquid outlet channel 22 can be formed, thereby effectively simplifying the structure of the liquid supply module 20 and facilitating the installation of the liquid supply module 20 on the mold.
[0045] In one embodiment, as Figure 1-5As shown, the mold cooling structure further includes a coolant distribution seat 40. The lower end of the coolant pipe 23 is fixed to the coolant distribution seat 40. The coolant distribution seat 40 is provided with a coolant flow channel 41, and the coolant flow channel 41 communicates with the liquid inlet channel 21 and the liquid outlet channel 22. Specifically, while fixing the coolant pipe 23, the coolant distribution seat 40 can also supply the introduced coolant into the liquid inlet channel 21 through the provided coolant flow channel 41 and discharge the coolant flowing out of the liquid outlet channel 22, thus simplifying the coolant supply structure.
[0046] In this embodiment, the coolant distribution seat 40 can also serve as the mold base.
[0047] In one embodiment, for the convenience of the installation and fixation of the coolant pipe 23, as Figure 1 and 4 shown in FIG. -5, the coolant distribution seat 40 is provided with a mounting groove 42, and the lower end of the coolant pipe 23 is provided with a mounting protrusion 25. The mounting protrusion 25 is installed in the mounting groove 42. Specifically, the coolant pipe 23 is stabilized through the cooperation between the mounting protrusion 25 and the mounting groove 42.
[0048] In this embodiment, the mounting protrusion 25 is fixed to the mounting groove 42 by bolts.
[0049] It can be understood that the coolant flow channel 41 can be a plurality of flow channel structures respectively connected to the liquid inlet channel 21 and the liquid outlet channel 22.
[0050] In one embodiment, as Figure 4-5 shown, the coolant distribution seat 40 is further provided with a connection channel 43. The two ends of the connection channel 43 are respectively communicated with the interior of the coolant flow channel 41 and the coolant pipe 23. Specifically, during the flow of the coolant in the coolant flow channel 41, the coolant will enter the connection channel 43, then flow through the connection channel 43 towards the liquid inlet channel 21 and the liquid outlet channel 22, then enter the liquid inlet channel 21, and flow out from the liquid outlet channel 22.
[0051] In one embodiment, as Figure 4-5 shown, the mold cooling structure further includes a barrier member 50. The barrier member 50 is installed in the connection channel 43 and blocks the coolant flow channel 41. The barrier member 50 divides the connection channel 43 into a liquid inlet connection channel 431 and a liquid outlet connection channel 432. The liquid inlet connection channel 431 communicates with the liquid inlet channel 21, and the liquid outlet connection channel 432 communicates with the liquid outlet channel 22. Specifically, during the flow of the coolant in the coolant flow channel 41, due to the blocking of the coolant in the coolant flow channel 41 by the barrier member 50, the coolant will enter the liquid inlet connection channel 431, then enter the liquid inlet channel 21 from the liquid inlet connection channel 431. After flowing out from the liquid outlet channel 22, it enters the liquid outlet connection channel 432, and finally flows out from the liquid outlet connection channel 432.
[0052] In a second aspect, the present utility model further provides a mold, as Figure 2-5 shown, which includes a mold body 60, an insert 70, and a mold cooling structure. The insert 70 is installed in the mold body 60, and the cooling core 10 is located inside the insert 70. Specifically, by providing the cooling core 10 in the mold, when injecting a workpiece, the coolant enters the cooling cavity 11 through the liquid inlet channel 21, takes away the heat of the cooling core 10, and then exits through the liquid outlet channel 22. Since the cooling core 10 is connected to the injection cavity 61, the cooling core 10 can be in direct contact with the workpiece, thereby directly dissipating heat from the workpiece, achieving timely heat dissipation of the workpiece, and thus improving the processing accuracy of the workpiece.
[0053] It can be understood that the number of mold cooling structures can be adaptively set according to the number of workpieces to be processed by the mold.
[0054] In this embodiment, the number of mold cooling structures is 4.
[0055] In this embodiment, the cooling core 10 extends to the injection cavity 61 through the extension section 12.
[0056] In one embodiment, as Figure 2 and 4 shown, the mold further includes a plurality of ejector pins 80. Each ejector pin 80 surrounds the circumference of the cooling core 10 and penetrates the insert 70 for supporting the workpiece. Specifically, by arranging the ejector pins 80 on the circumference of the cooling core 10, the heat can be diffused to the cooling core 10 and absorbed by the cooling core 10 to cool the ejector pins 80.
[0057] To better understand the present utility model, the following Figures 1 to 5 is a detailed description of the technical solution of the present utility model: When injecting a workpiece, the coolant enters through the coolant flow channel 41 at the base, then enters the liquid inlet connection channel 431 through the blockage of the barrier 50, then enters the liquid inlet channel 21 from the liquid inlet connection channel 431, then enters the liquid inlet cavity 111, and enters the liquid outlet cavity 112 through the separation of the cavity spacer 30. The coolant in the liquid inlet cavity 111 and the liquid outlet cavity 112 can absorb heat from the cooling core 10, and further can cool the workpiece from the inside of the workpiece to ensure the processing quality of the workpiece. The coolant enters the liquid outlet channel 22 after entering the liquid outlet cavity 112, then enters the liquid outlet connection channel 432, and finally exits through the coolant flow channel 41.
[0058] The above specific embodiments of the present utility model do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.
Claims
1. A mold cooling structure, characterized in that: include: A cooling mold core, the cooling mold core is used to be arranged on the inner side of the insert and connected to the injection cavity, and a cooling cavity is arranged inside the cooling mold core; as well as A liquid supply module is connected to the cooling mold core and is provided with a liquid inlet channel and a liquid outlet channel. Both the liquid inlet channel and the liquid outlet channel are connected to the cooling cavity. The liquid inlet channel is used to supply coolant to enter the cooling cavity, and the liquid outlet channel is used to supply coolant in the cooling cavity to pass out.
2. The mold cooling structure according to claim 1, characterized in that: The liquid supply module includes a cooling liquid pipe and a spacer, wherein the spacer is connected to the cooling mold core, and the spacer is arranged inside the cooling liquid pipe and separates the inside of the cooling liquid pipe to form the liquid inlet channel and the liquid outlet channel.
3. The mold cooling structure according to claim 2, characterized in that: The mold cooling structure also includes a coolant distribution seat, the lower end of the coolant pipe is fixed to the coolant distribution seat, and the coolant distribution seat is provided with a coolant flow channel, which is connected to the liquid inlet channel and the liquid outlet channel.
4. The mold cooling structure according to claim 3, characterized in that: The coolant distribution seat is provided with a mounting groove, and the lower end of the coolant pipe is provided with a mounting protrusion, and the mounting protrusion is installed in the mounting groove.
5. The mold cooling structure according to claim 3, characterized in that: The coolant distribution seat is also provided with a connecting channel, and two ends of the connecting channel are respectively communicated with the coolant flow channel and the interior of the coolant pipe.
6. The mold cooling structure according to claim 5, characterized in that: The mold cooling structure also includes a blocking member, which is installed in the connecting channel and blocks the coolant flow channel. The blocking member divides the connecting channel into a liquid inlet connecting channel and a liquid outlet connecting channel. The liquid inlet connecting channel is connected to the liquid inlet channel, and the liquid outlet connecting channel is connected to the liquid outlet channel.
7. The mold cooling structure according to any one of claims 1 to 6, characterized in that: The mold cooling structure also includes a cavity spacer, which is arranged in the cooling cavity and divides the cooling cavity into a liquid inlet cavity and a liquid outlet cavity, and the liquid inlet cavity and the liquid outlet cavity are respectively connected to the liquid inlet channel and the liquid outlet channel.
8. The mold cooling structure according to any one of claims 1 to 6, characterized in that: The cooling mold core is provided with an extension section, and the extension section is used to extend to the injection cavity.
9. A mold, characterized in that: It comprises a mold body, an insert and the mold cooling structure according to any one of claims 1 to 8, wherein the insert is mounted on the mold body, and the cooling core is located on the inner side of the insert.
10. The mold according to claim 9, characterized in that: The mold further comprises a plurality of ejector pins, each of which is surrounded by the peripheral side of the cooling mold core and penetrates the insert to support the workpiece.