Die-casting die with core-pulling retaining device
By setting a core-pulling retaining device on the core-pulling slider of the die-casting mold and using retaining pins to support the forming position of the high-thread column, the problems of sticking and stretching deformation during core pulling are solved, and high-quality demolding and forming are achieved.
Patent Information
- Application Number
- CN202423235400.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Conventional core-pulling devices are prone to sticking to the mold or stretching deformation when pulling out the high-threaded column of the water-cooled machine ring of a new energy motor, making it difficult to guarantee the quality of the workpiece and demolding.
Design a die-casting mold with a core-pulling and retaining device. By setting the core-pulling and retaining device on the core-pulling slider, the retainer supports the high threaded column forming position, prevents stretching deformation, and ensures smooth demolding.
It effectively prevents the high-thread column forming position from being stretched and deformed during core pulling, thus improving the die-casting quality and demolding effect of the workpiece.
Smart Images
Figure CN223862828U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of die casting mold technology, and in particular to a die casting mold with a core pulling and retaining device. Background Technology
[0002] The outer surface of the water-cooled motor ring of the new energy motor is provided with longitudinally and transversely distributed reinforcing ribs and multiple high-threaded columns protruding from the outer surface. Due to the long high-threaded columns and the small contact area with the water-cooled motor ring, the clamping force at this position is relatively large. However, due to the structural limitations of conventional core-pulling devices, the high-threaded column part of the workpiece will stick to the mold or be stretched and deformed when pulled out, which not only fails to guarantee the quality of the workpiece, but also makes it difficult to demold.
[0003] Therefore, by developing a die-casting mold with a core-pulling and retaining device, the high-threaded column forming position can be supported and retained by the core-pulling and retaining device to prevent the high-threaded column forming position from being pulled and deformed during core pulling, thus improving demolding and ensuring the die-casting quality of the workpiece. Utility Model Content
[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0005] A die-casting mold with a core-pulling and retaining device includes a moving mold assembly and a fixed mold assembly. The fixed mold assembly includes a fixed template, within which a fixed mold insert is disposed, and a fixed mold insert is disposed at the center of the fixed mold insert. The moving mold assembly includes a moving template, within which a moving mold insert is disposed, and a moving mold insert is disposed at the center of the moving mold insert. The end face of the moving mold insert is connected to the end face of the fixed mold insert.
[0006] The moving mold assembly is provided with multiple core-pulling devices around its outer perimeter. Each core-pulling device includes a core-pulling slider with a workpiece profile. The multiple core-pulling sliders are arranged in a circumferential array around the outer perimeter between the fixed mold insert and the moving mold insert. The multiple core-pulling sliders form a mold cavity with the fixed mold insert and the moving mold insert. The multiple core-pulling sliders are slidably connected with the fixed mold insert and the moving mold insert.
[0007] One of the core-pulling sliders is provided with multiple high-threaded column forming positions that communicate with the mold surface, and forming pins are provided at the high-threaded column forming positions. The core-pulling device connected to the core-pulling slider with the high-threaded column forming positions is provided with a core-pulling holding device. The core-pulling holding device is used to prevent the high-threaded column forming positions of the workpiece from sticking to the mold or being stretched and deformed during core pulling.
[0008] Preferably, the core-pulling device further includes a slide block and a core-pulling assembly. The slide block is slidably connected to the moving template. One end of the slide block is connected to the core-pulling slider, and the other end is connected to the core-pulling assembly. The core-pulling holding device is located between the slide block and the core-pulling assembly, and the core-pulling holding device is fixedly connected to the moving template.
[0009] The working end of the core-pulling and holding device extends through the slide block and the core-pulling slider to the outside of the high-thread column forming position.
[0010] Preferably, the core-pulling and retaining device includes a connecting side plate, a retaining plate, and a plurality of retaining pins;
[0011] The connecting side plates are arranged opposite each other on both sides of the slide block. The retaining plate is located at the end of the slide block away from the core-pulling slider. One end of the connecting side plate is fixedly connected to the moving template, and the other end is connected to the retaining plate and the core-pulling assembly. An movable gap for the slide block to move is provided between the slide block and the retaining plate. One end of a plurality of retaining pins is fixedly connected to the retaining plate, and the other end extends through the slide block and the core-pulling slider to the outside of the high thread column forming position.
[0012] Preferably, the slide block is provided with a plurality of guide posts at one end near the retaining plate, and one end of the plurality of guide posts is slidably connected to the guide holes of the retaining plate.
[0013] Preferably, the plurality of retaining pins are distributed around the outer perimeter of the high-threaded column forming position.
[0014] Preferably, the core-pulling assembly includes a core-pulling bracket, a pull rod, and a core-pulling driver;
[0015] The two ends of the core-pulling bracket are connected to the connecting side plates, and the middle part is connected to the core-pulling driver. One end of the pull rod is connected to the slide, and the other end passes through the retaining plate and is connected to the driving end of the core-pulling driver through the connecting sleeve.
[0016] Preferably, the core-pulling assembly further includes a displacement sensor, the monitoring end of which is connected to the connecting sleeve, and the displacement sensor is electrically connected to the core-pulling driver.
[0017] Preferably, the core-pulling actuator is a hydraulic cylinder.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] This utility model provides a core-pulling holding device on the core-pulling device connected to the core-pulling slider with a high threaded column forming position. During core pulling, the core-pulling holding device supports and holds the high threaded column forming position, thereby forming a reaction force to prevent the high threaded column forming position from being stretched and deformed during core pulling. This allows for better demolding while ensuring the die-casting quality of the workpiece. Attached Figure Description
[0020] Figure 1 This is an exploded view of the present invention;
[0021] Figure 2 This is a top view of the present invention;
[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section;
[0023] Figure 4 This is a cross-sectional structural diagram of the core-pulling device with a core-pulling and holding device in this utility model;
[0024] The components include: moving mold assembly 1, fixed mold assembly 2, core pulling device 3, core pulling retaining device 4, guide pillar 5, connecting sleeve 6, displacement sensor 7, moving template 11, moving mold insert 12, moving mold insert 13, fixed template 21, fixed mold insert 22, fixed mold insert 23, core pulling slider 31, slide block 32, core pulling assembly 33, connecting side plate 41, retaining plate 42, retaining pin 43, profile 311, high threaded column forming position 312, forming pin 313, core pulling bracket 331, pull rod 332, core pulling driver 333, mold cavity 10, moving clearance 20, workpiece 100, and high threaded column 101. Detailed Implementation
[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:
[0029] like Figure 1-4 As shown, a die-casting mold with a core-pulling and retaining device 4 includes a moving mold assembly 1 and a fixed mold assembly 2. The fixed mold assembly 2 includes a fixed template 21, a fixed mold insert 22 is disposed within the fixed template 21, and a fixed mold insert 23 is disposed in the middle of the fixed mold insert 22. The moving mold assembly 1 includes a moving template 11, a moving mold insert 12 is disposed within the moving template 11, and a moving mold insert 13 is disposed in the middle of the moving mold insert 12. The end face of the moving mold insert 13 is connected to the end face of the fixed mold insert 23.
[0030] The moving mold assembly 1 is provided with a plurality of core-pulling devices 3 around its outer periphery. Each core-pulling device 3 includes a core-pulling slider 31 having a workpiece 100 profile 311. The plurality of core-pulling sliders 31 are arranged in a circumferential array around the outer periphery between the fixed mold insert 23 and the moving mold insert 13. The plurality of core-pulling sliders 31 form a mold cavity 10 with the fixed mold insert 23 and the moving mold insert 13. The plurality of core-pulling sliders 31 are slidably connected to the fixed mold insert 23 and the moving mold insert 13.
[0031] One of the core-pulling sliders 31 is provided with a plurality of high threaded column forming positions 312 communicating with the molded surface 311, and forming pins 313 are provided on the high threaded column forming positions 312. The core-pulling device 3 connected to the core-pulling slider 31 with the high threaded column forming positions 312 is provided with a core-pulling holding device 4. The core-pulling holding device 4 is used to prevent the high threaded column forming positions 312 of the workpiece 100 from sticking to the mold or being stretched and deformed during core pulling.
[0032] In this embodiment, the high threaded column forming position 312 of the core-pulling slider 31 corresponds to the high threaded column forming position 312 on the workpiece 100. By setting a core-pulling holding device 4 on the core-pulling device 3 located at the high threaded column forming position 312 of the workpiece 100, the core-pulling holding device 4 supports the position outside the high threaded column 101 during core pulling, thereby forming a reaction force to prevent the high threaded column forming position 312 from being stretched and deformed during core pulling, thus improving demolding while ensuring the die-casting quality of the workpiece 100.
[0033] In this embodiment, the mold adopts a four-sided core-pulling structure design, which ensures the die-casting quality of the workpiece 100 while providing better demolding.
[0034] Furthermore, such as Figure 1 , 3As shown in Figure 4, the core-pulling device 3 further includes a slide block 32 and a core-pulling assembly 33. The slide block 32 is slidably connected to the moving template 11. One end of the slide block 32 is connected to the core-pulling slider 31, and the other end is connected to the core-pulling assembly 33. The core-pulling holding device 4 is located between the slide block 32 and the core-pulling assembly 33, and the core-pulling holding device 4 is fixedly connected to the moving template 11.
[0035] The working end of the core-pulling and holding device 4 extends through the slide block 32 and the core-pulling slider 31 to the outside of the high thread column forming position 312.
[0036] In this embodiment, during core pulling, the core pulling assembly 33 is activated, pulling the slide block 32 to move the core pulling slider 31, causing the profile 311 of the core pulling slider 31 to separate from the workpiece 100. At the same time, the working end of the core pulling holding device 4 supports and holds the external position of the threaded column of the workpiece 100, forming a reaction force relative to the core pulling to prevent the high threaded column forming position 312 from being deformed during core pulling, thereby ensuring the die casting quality of the workpiece 100.
[0037] Furthermore, such as Figure 1 , 3 As shown in Figure 4, the core-pulling and holding device 4 includes a connecting side plate 41, a holding plate 42, and a plurality of holding pins 43;
[0038] The connecting side plates 41 are disposed opposite to each other on both sides of the slide block 32. The retaining plate 42 is located at the end of the slide block 32 away from the core-pulling slider 31. One end of the connecting side plate 41 is fixedly connected to the moving template 11, and the other end is connected to the retaining plate 42 and the core-pulling assembly 33. An movable gap 20 is provided between the slide block 32 and the retaining plate 42 for the slide block 32 to move. One end of a plurality of retaining pins 43 is fixedly connected to the retaining plate 42, and the other end extends through the slide block 32 and the core-pulling slider 31 to the outside of the high thread column forming position 312.
[0039] In this embodiment, during core pulling, the slide block 32 drives the core pulling slider 31 to move closer to the retaining plate 42. At the same time, multiple retaining pins 43 do not move with the slide block 32 under the action of the retaining plate 42, and the ends of the multiple retaining pins 43 form multiple support and retaining points acting on the outer position of the threaded column of the workpiece 100, thereby forming a reaction force relative to core pulling to prevent the high threaded column forming position 312 from being stretched and deformed during core pulling.
[0040] Furthermore, such as Figure 1 , 3 As shown in Figure 4, in order to improve the smoothness of the movement of the slide block 32 during core pulling, a plurality of guide posts 5 are provided at one end of the slide block 32 near the retaining plate 42, and one end of the plurality of guide posts 5 is slidably connected to the guide hole of the retaining plate 42.
[0041] Furthermore, such as Figure 1 ,3 As shown in Figure 4, in order to improve the support and retention effect of the high threaded column forming position 312 of the workpiece 100 during core pulling, a plurality of retaining pins 43 are distributed around the outer periphery of the high threaded column forming position 312.
[0042] Furthermore, such as Figure 1 , 3 As shown in Figure 4, in order to realize the core pulling drive of the core pulling slider 31, the core pulling assembly 33 includes a core pulling bracket 331, a pull rod 332 and a core pulling driver 333.
[0043] The two ends of the core-pulling bracket 331 are connected to the connecting side plate 41, and the middle part is connected to the core-pulling driver 333. One end of the pull rod 332 is connected to the slide 32, and the other end passes through the retaining plate 42 and is connected to the driving end of the core-pulling driver 333 through the connecting sleeve 6.
[0044] Furthermore, such as Figure 1 , 3 As shown in Figure 4, in order to ensure that the core-pulling slider 31 is in place during die casting and core pulling, and to achieve precise control of core pulling, the core-pulling assembly 33 also includes a displacement sensor 7. The monitoring end of the displacement sensor 7 is connected to the connecting sleeve 6, and the displacement sensor 7 is electrically connected to the core-pulling driver 333.
[0045] Furthermore, the core-pulling actuator 333 is a hydraulic cylinder.
[0046] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.
Claims
1. A die-casting mold with a core-pulling and retaining device, comprising a moving mold assembly and a fixed mold assembly, characterized in that, The fixed mold assembly includes a fixed template, a fixed mold insert is provided inside the fixed template, and a fixed mold insert is provided in the middle of the fixed mold insert. The moving mold assembly includes a moving template, a moving mold insert is provided inside the moving template, and a moving mold insert is provided in the middle of the moving mold insert. The end face of the moving mold insert is connected to the end face of the fixed mold insert. The moving mold assembly is provided with multiple core-pulling devices around its outer perimeter. Each core-pulling device includes a core-pulling slider with a workpiece profile. The multiple core-pulling sliders are arranged in a circumferential array around the outer perimeter between the fixed mold insert and the moving mold insert. The multiple core-pulling sliders form a mold cavity with the fixed mold insert and the moving mold insert. The multiple core-pulling sliders are slidably connected with the fixed mold insert and the moving mold insert. One of the core-pulling sliders is provided with multiple high-threaded column forming positions that communicate with the mold surface, and forming pins are provided at the high-threaded column forming positions. The core-pulling device connected to the core-pulling slider with the high-threaded column forming positions is provided with a core-pulling holding device. The core-pulling holding device is used to prevent the high-threaded column forming positions of the workpiece from sticking to the mold or being stretched and deformed during core pulling.
2. A die-casting mold with a core-pulling and retaining device according to claim 1, characterized in that, The core-pulling device further includes a slide block and a core-pulling assembly. The slide block is slidably connected to the moving template. One end of the slide block is connected to the core-pulling slider, and the other end is connected to the core-pulling assembly. The core-pulling holding device is located between the slide block and the core-pulling assembly, and the core-pulling holding device is fixedly connected to the moving template. The working end of the core-pulling and holding device extends through the slide block and the core-pulling slider to the outside of the high-thread column forming position.
3. A die-casting mold with a core-pulling and retaining device according to claim 2, characterized in that, The core-pulling and retaining device includes a connecting side plate, a retaining plate, and multiple retaining pins; The connecting side plates are arranged opposite each other on both sides of the slide block. The retaining plate is located at the end of the slide block away from the core-pulling slider. One end of the connecting side plate is fixedly connected to the moving template, and the other end is connected to the retaining plate and the core-pulling assembly. An movable gap for the slide block to move is provided between the slide block and the retaining plate. One end of a plurality of retaining pins is fixedly connected to the retaining plate, and the other end extends through the slide block and the core-pulling slider to the outside of the high thread column forming position.
4. A die-casting mold with a core-pulling and retaining device according to claim 3, characterized in that, The slide block is provided with a plurality of guide posts at one end near the retaining plate, and one end of the plurality of guide posts is slidably connected to the guide holes of the retaining plate.
5. A die-casting mold with a core-pulling and retaining device according to claim 3, characterized in that, Multiple retaining pins are distributed around the outer perimeter of the high-threaded column forming position.
6. A die-casting mold with a core-pulling and retaining device according to claim 2 or 3, characterized in that, The core-pulling assembly includes a core-pulling bracket, a pull rod, and a core-pulling driver; The two ends of the core-pulling bracket are connected to the connecting side plates, and the middle part is connected to the core-pulling driver. One end of the pull rod is connected to the slide, and the other end passes through the retaining plate and is connected to the driving end of the core-pulling driver through the connecting sleeve.
7. A die-casting mold with a core-pulling and retaining device according to claim 6, characterized in that, The core-pulling assembly also includes a displacement sensor, the monitoring end of which is connected to the connecting sleeve, and the displacement sensor is electrically connected to the core-pulling driver.
8. A die-casting mold with a core-pulling and retaining device according to claim 6, characterized in that, The core-pulling actuator is a hydraulic cylinder.