Core-pulling ejection composite mechanism and mold

Abstract

The utility model provides a core-pulling ejection composite mechanism and a mold, and belongs to the technical field of molds, and the core-pulling ejection composite mechanism comprises an ejection assembly and a sliding block assembly. The ejection assembly comprises ejection parts which are connected with each other, and the ejection assembly is used for ejecting the mold in the first direction; a core pulling structure is arranged on the sliding block assembly, and an ejection hole penetrating through the sliding block assembly is formed in the sliding block assembly; the ejection part abuts against at least one inner wall of the ejection hole, and when the ejection part moves in the first direction, the sliding block assembly is driven to move in the second direction; wherein the first direction and the second direction intersect with each other. According to the core-pulling ejection composite mechanism provided by the embodiment of the invention, linkage control of ejection and core pulling can be realized, so that the structure is simplified, and the production efficiency is improved. In addition, due to the fact that linkage control over ejection and core pulling is achieved, composite demolding can be achieved, the mold is suitable for demolding of a large-angle buckle structure product, and the application scene is expanded.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a core-pulling and ejection composite mechanism and a mold. Background Art

[0002] A mold is a tool used in industrial production to form objects. It has a specific shape and structure. Under pressure, temperature, or other conditions, raw materials flow and fill the mold cavity. After cooling, solidification, or chemical reactions, the desired product shape and size are achieved. The mold's core pulling mechanism is a component that creates holes, grooves, and other structures in the product. The mold's ejector mechanism, on the other hand, is the device used in injection molds to eject the finished product from the mold cavity.

[0003] In the related art, the core pulling mechanism and ejection mechanism of the mold are usually controlled independently, that is, the core pulling mechanism and the ejection mechanism are driven by different driving mechanisms respectively, which makes the structure of the mold more complicated and affects the production efficiency. Utility Model Content

[0004] The embodiment of the present application provides a core-pulling and ejection composite mechanism and a mold, which can realize the linkage control of ejection and core pulling, simplify the structure and improve efficiency.

[0005] In order to achieve the above-mentioned object, according to the first aspect of the present application, a core-pulling and ejection composite mechanism is provided, comprising:

[0006] An ejection assembly, the ejection assembly comprising ejection parts connected to each other, and the ejection assembly is used to lift the mold along a first direction;

[0007] A slider assembly is provided with a core-pulling structure, and an ejection hole penetrating the slider assembly is provided on the slider assembly;

[0008] The ejection portion abuts against at least one inner wall of the ejection hole, and when the ejection portion moves in the first direction, the slider assembly is driven to move in the second direction;

[0009] The first direction and the second direction intersect with each other.

[0010] Optionally, the ejection assembly further comprises a main body, and the ejection portion and the main body are connected to each other;

[0011] The extending direction of the ejection portion and the extending direction of the main body portion are arranged at an angle.

[0012] Optionally, the ejection portion includes a first abutting surface facing away from the bending direction of the ejection portion, and the ejection hole correspondingly includes a second abutting surface abutting against the first abutting surface.

[0013] Optionally, the ejection portion includes a first wear-resistant part provided on a side away from the bending direction of the ejection portion, and the first wear-resistant part has a first abutting surface.

[0014] Optionally, the core-pulling and ejection composite mechanism further includes a guide block;

[0015] The guide block is sleeved on the main body to limit the ejection direction of the ejection assembly.

[0016] Optionally, the guide block includes a first guide block and a second guide block that are spaced apart.

[0017] Optionally, the core-pulling and ejection composite mechanism further includes an inserting pin;

[0018] The slider assembly is provided with a pin insertion hole, the pin is inserted into the pin insertion hole, and the pin extends along the second direction.

[0019] Optionally, the core-pulling and ejection composite mechanism further includes an elastic member, which is disposed in the pin insertion hole and is arranged in a one-to-one correspondence with the pin, so that the pin is elastically connected to the pin insertion hole.

[0020] According to the second aspect of the present application, a mold is also provided, comprising the core-pulling and ejection composite mechanism as described above.

[0021] Optionally, the mold further comprises a base;

[0022] A slide groove is provided on the base, and the slide groove extends along the second direction;

[0023] The slider assembly is arranged in the slide groove, and the main body of the ejection assembly passes through the base.

[0024] Optionally, a limit member is provided in the slide groove, and the limit member is configured to limit the sliding distance of the slider assembly in the slide groove.

[0025] Optionally, the mold further includes a pressing block connected to the base to press the slider assembly into the slide groove.

[0026] Optionally, the slider assembly has step structures at opposite ends in the third direction, and the height of the step structures along the first direction matches the depth of the slide groove along the first direction;

[0027] The pressing block includes a first pressing block and a second pressing block, the first pressing block and the second pressing block are respectively arranged on opposite sides of the chute in the third direction, and the first pressing block and the second pressing block are configured to press the step structure into the chute;

[0028] The third direction is perpendicular to the first direction and the second direction.

[0029] Optionally, a bottom needle plate is also included;

[0030] One end of the ejection assembly away from the ejection portion is connected to the bottom needle plate;

[0031] When the bottom needle plate moves along the first direction, it is suitable for driving the ejection assembly to move along the first direction.

[0032] Optionally, the base is provided with a pin insertion slot corresponding to the pin insertion;

[0033] When the slider assembly moves along the second direction, one end of the pin is driven to enter the pin slot or to escape from the pin slot.

[0034] Optionally, the first guide block and the second guide block are connected to the base, and the first guide block and the second guide block are respectively arranged on two opposite sides of the base in the first direction.

[0035] The core-pulling ejection composite mechanism provided in an embodiment of the present application includes an ejection assembly and a slider assembly. The ejection assembly includes an interconnected ejection portion, a slider assembly provided with a core-pulling structure, and an ejection hole extending through the slider assembly. The ejection portion abuts at least one inner wall of the ejection hole. When the ejection portion moves in a first direction, it drives the slider assembly to move in a second direction. The first and second directions intersect. On the one hand, the ejection assembly can eject through the ejection hole in the slider assembly in the first direction, completing the ejection operation during the mold opening process. On the other hand, when the ejection assembly ejects, it can also cooperate with the ejection hole in the slider assembly to drive the slider assembly in the second direction, thereby also moving the core-pulling structure in the second direction, completing the core-pulling operation during the mold opening process. Therefore, the core-pulling ejection composite mechanism provided in an embodiment of the present application can achieve linked control of ejection and core-pulling, thereby simplifying the structure and improving production efficiency. Furthermore, because the linked control of ejection and core-pulling enables combined demolding, it is suitable for demolding products with large-angle snap-fit ​​structures, expanding its application scenarios.

[0036] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0038] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0039] Figure 1 Schematic diagram of the exploded structure of the core-pulling and ejection composite mechanism provided in an embodiment of the present application;

[0040] Figure 2 Schematic diagram of the assembly structure of the core-pulling and ejection composite mechanism provided in an embodiment of the present application;

[0041] Figure 3 Schematic diagram of the structure of the ejection assembly provided in the embodiment of the present application;

[0042] Figure 4 Schematic diagram of the structure of the slider assembly provided in the embodiment of the present application;

[0043] Figure 5 is a cross-sectional view of a core-pulling and ejection composite mechanism provided in an embodiment of the present application;

[0044] Figure 6 is a cross-sectional view of a slider assembly provided in an embodiment of the present application;

[0045] Figure 7 Schematic diagram of the three-dimensional structure of the mold provided in the embodiment of the present application;

[0046] Figure 8 yes Figure 7 A magnified schematic diagram of point A in the middle;

[0047] Figure 9 is a cross-sectional view of a mold provided in an embodiment of the present application;

[0048] Figure 10 It is a cross-sectional view of the assembly structure of the base and slider assembly provided in an embodiment of the present application.

[0049] Description of reference numerals:

[0050] 100. Core-pulling and ejection composite mechanism; 1. Ejector assembly; 11. Ejector portion; 111. First abutment surface; 1111. First wear-resistant member; 12. Main body; 2. Slider assembly; 21. Core-pulling structure; 22. Ejection hole; 221. Second abutment surface; 23. Insert pin; 24. Elastic member; 26. Insert pin insertion hole; 3. Guide block; 31. First guide block; 32. Second guide block;

[0051] 210, base; 211, slide; 2111, limiter; 220, bottom needle plate; 230, surface needle plate; 240, pressing block; 241, first pressing block; 242, second pressing block; 250, needle slot. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0053] See also Figure 1-Figure 2 The core-pulling ejection composite mechanism 100 provided in an embodiment of the present application includes an interconnected ejection portion 11, a core-pulling structure 21 provided on a slider assembly 2, and an ejection hole 22 extending through the slider assembly 2. The ejection portion 11 abuts against at least one inner wall of the ejection hole 22. When the ejection portion 11 moves in a first direction, it can drive the slider assembly 2 to move in a second direction. The first direction and the second direction intersect with each other. On the one hand, the ejection assembly 1 can be ejected in the first direction through the ejection hole 22 on the slider assembly 2, completing the ejection action during the mold opening process. On the other hand, when the ejection assembly 1 is ejected, it can also cooperate with the ejection hole 22 on the slider assembly 2 to drive the slider assembly 2 to move in the second direction, thereby causing the core-pulling structure 21 to also move in the second direction, completing the core-pulling action during the mold opening process. Therefore, the core-pulling ejection composite mechanism 100 provided in an embodiment of the present application can achieve coordinated control of ejection and core pulling, thereby simplifying the structure and improving production efficiency. In addition, due to the realization of the linkage control of ejection and core pulling, composite demoulding can be achieved, which is suitable for the demoulding of large-angle snap-on structure products, expanding the application scenarios.

[0054] In some embodiments, see Figure 1-Figure 3 The ejector assembly 1 further includes a main body 12. The ejector portion 11 and the main body 12 are connected to each other, and the extension direction of the ejector portion 11 is arranged at an angle to the extension direction of the main body 12. By making the ejector assembly 1 include the ejector portion 11 and the main body 12, and by making the ejector portion 11 and the main body 12 extend at an angle, when the ejector assembly 1 moves in the first direction, the inclined ejector portion 11 can cooperate with the ejection hole 22 in the sliding assembly, driving the sliding assembly to move in the second direction. This structure is simple, and the driving process is relatively stable.

[0055] In some embodiments, see Figure 3-Figure 5 The ejection portion 11 includes a first abutting surface 111 facing away from the bending direction of the ejection portion 11, and the ejection hole 22 has a corresponding second abutting surface 221 that abuts the first abutting surface 111. That is, through the cooperation between the first inclined abutting surface 111 and the second abutting surface 221, when the ejection portion 11 moves in the first direction, the direct abutment between the first abutting surface 111 and the second abutting surface 221 pushes the slider assembly 2 to move in the second direction.

[0056] In some embodiments, see Figure 3The ejection portion 11 includes a first wear-resistant member 1111 on a side facing away from the bending direction of the ejection portion 11. The first wear-resistant member 1111 has a first abutting surface 111. When the ejection portion 11 is ejected and moved in the first direction, and the sliding assembly is driven to move in the second direction, the first abutting surface 111 and the second abutting surface 221 interact with each other. In order to reduce the wear and damage of the ejection portion 11, the first wear-resistant member 1111 is provided on the side where the interaction is more severe, and the first abutting surface 111 on the first wear-resistant member 1111 abuts against the second abutting surface 221 in the ejection hole 22.

[0057] In some embodiments, see Figure 1 、 Figure 2 and Figure 5 The core-pulling ejection mechanism 100 further includes a guide block 3. The guide block 3 is mounted on the main body 12 to define the ejection direction of the ejection assembly 1. The guide block 3, mounted on the main body 12, limits the ejection direction of the ejection assembly 1, reduces deviation during the ejection process, and improves ejection stability.

[0058] In some embodiments, see Figure 1 、 Figure 2 and Figure 5 The guide block 3 includes a first guide block 31 and a second guide block 32 arranged at intervals. The first guide block 31 and the second guide block 32 arranged at intervals can define different positions of the main body 12 in the ejection assembly 1, thereby further improving the stability of the ejection assembly 1 during the ejection process.

[0059] In some embodiments, see Figure 6 The core-pulling and ejecting composite mechanism 100 further includes an inserting pin 23. The slider assembly 2 is provided with an inserting pin insertion hole 26, the inserting pin 23 is inserted into the inserting pin insertion hole 26, and the inserting pin 23 extends along the second direction.

[0060] The insert pin 23 performs multiple functions within the mold, including protecting the mold and stabilizing the mold structure. By providing a insert pin insertion hole 26 in the slider assembly 2 and inserting the insert pin 23 into the insertion hole 26, the insert pin 23 can be positioned on the slider assembly 2. The insert pin 23 also extends in the second direction, allowing the slider assembly 2 to move in the second direction, allowing the insert pin 23 to engage or disengage with other components in the mold. Engagement improves stability, while disengagement allows mold opening without requiring a separate control component for the insert pin 23.

[0061] In some embodiments, the core-pulling ejection composite mechanism 100 further includes an elastic member, which is disposed in the pin insertion hole 26 and is disposed in a one-to-one correspondence with the pin 23, so that the pin 23 is elastically connected to the pin insertion hole 26. By providing the elastic member, the coordination between the pin 23 and other components can be further improved. For example, in the initial state, one end of the pin 23 is fixed in the slider assembly 2 by the elastic member, and the other end protrudes from the slider assembly 2. When the end of the pin 23 protruding from the slider assembly 2 abuts against other components in the mold, the protruding portion of the pin 23 can be compressed, thereby driving the elastic member to be compressed. Under the action of the restoring force of the elastic member, the pin 23 can further improve the fixing effect.

[0062] For example, the elastic member may be a spring, the pin insertion hole 26 may be a “T”-shaped hole, and the spring may be sleeved on the pin 23 to achieve an elastic connection between the pin 23 and the pin insertion hole 26 .

[0063] According to a second aspect of the embodiment of the present application, a mold is further provided, comprising the core-pulling and ejection composite mechanism 100 as described above. The mold has all the beneficial effects of the core-pulling and ejection composite mechanism 100 as described above, which will not be described in detail in this application.

[0064] In some embodiments, see Figure 7 and Figure 8 The mold further includes a base 210 , on which a slide groove 211 is provided, extending along the second direction. The slider assembly 2 is disposed in the slide groove 211 , and the main body 12 of the ejector assembly 1 passes through the base 210 .

[0065] By placing the slider assembly 2 in the slide groove 211 on the base 210, the slider assembly 2 can slide along the slide groove 211, and the core-pulling structure 21 in the slider assembly 2 can cooperate with other structures on the base 210. The main body 12 of the ejector assembly 1 passes through the base 210, which can improve the stability of the ejector assembly 1 during the ejection process.

[0066] In some embodiments, see Figure 8 and Figure 9 A limiting member 2111 is provided in the slide groove 211 , and the limiting member 2111 is configured to limit the sliding distance of the slider assembly 2 in the slide groove 211 .

[0067] A limiter 2111 is disposed within the chute 211 and is located in the direction in which the slider assembly 2 slides. When the slider assembly 2 slides a certain distance within the chute 211, one end of the slider assembly 2 abuts the limiter 2111, preventing the slider assembly 2 from sliding further in that direction, thereby limiting the sliding range of the slider assembly 2 within the chute 211. The limiter 2111 can limit the sliding distance of the slider assembly 2 to an appropriate range, enabling better mold opening and closing operations while preventing the slider assembly 2 from falling out of the chute 211.

[0068] In some embodiments, see Figure 8 The mold further includes a pressing block 240 , which is connected to the base 210 to press the slider assembly 2 into the slide groove 211 .

[0069] The slider assembly 2 is slidably connected to the slide groove 211. In order to restrict the slider assembly 2 in the slide groove 211 and not affect the sliding of the slider assembly 2 in the slide groove 211, the embodiment of the present application presses the slider assembly 2 in the slide groove 211 through the pressing block 240.

[0070] In some embodiments, see Figure 8 The slider assembly 2 has a stepped structure at opposite ends in the third direction, and the height of the stepped structure in the first direction matches the depth of the chute 211 in the first direction. The pressing block 240 includes a first pressing block 241 and a second pressing block 242, which are respectively disposed on opposite sides of the chute 211 in the third direction. The first pressing block 241 and the second pressing block 242 are configured to press the stepped structure into the chute 211. The third direction is perpendicular to the first and second directions.

[0071] See also Figure 8 The slider assembly 2 has step structures at both opposing ends in the third direction, and the height of the step structures along the first direction matches the depth of the chute 211 along the first direction, so that when the slider assembly 2 is disposed in the chute 211, the upper surface of the step structures is flush with the upper surface of the chute 211. The first pressing block 241 and the second pressing block 242 are correspondingly disposed on opposing sides of the chute 211 in the third direction. At least a portion of the first pressing block 241 and the second pressing block 242 are pressed against the step structures at the opposing ends of the slider assembly 2 in the third direction, thereby preventing the slider assembly 2 from falling out of the chute 211 and improving stability.

[0072] In some embodiments, the mold further includes a bottom needle plate 220, and an end of the ejection assembly 1 away from the ejection portion 11 is connected to the bottom needle plate 220. When the bottom needle plate 220 moves along the first direction, it is suitable for driving the ejection assembly 1 to move along the first direction.

[0073] The bottom needle plate 220 is the basic bottom plate for installing the ejection assembly 1 in the mold, which can ensure the stability of the ejection assembly 1 during the ejection process. The bottom needle plate 220 also supports the overall structure of the mold, allowing the mold to withstand various pressures during the processing process and ensure the stable operation of the mold.

[0074] In some embodiments, the mold further includes a face pin plate 230, which is connected to the side of the bottom pin plate 220 near the base 210. During the demolding process, the face pin plate 230 can ensure that the molded product is smoothly and damage-free released from the mold, reducing damage to the mold cavity.

[0075] In some embodiments, see Figure 10 The base 210 is provided with a pin insertion slot 250 corresponding to the pin insertion pin 23. When the slider assembly 2 moves in the second direction, one end of the pin insertion pin 23 is driven into or out of the pin insertion slot 250. The engagement of the pin insertion pin 23 with the pin insertion slot 250 enables the mold to be fixed and separated, improving stability during the mold opening and closing processes.

[0076] In some embodiments, see Figure 9 The first guide block 31 and the second guide block 32 are connected to the base 210, and are respectively disposed on opposite sides of the base 210 in the first direction. The first guide block 31 and the second guide block 32 are respectively disposed on opposite sides of the base 210 in the first direction, thereby ensuring the stability of the ejector assembly 1 during the ejection process and improving the stability of the connection between the ejector assembly 1 and the base 210.

[0077] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0078] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0079] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0080] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A core-pulling and ejection composite mechanism, characterized in that: include: An ejector assembly, the ejector assembly comprising interconnected ejector body portions, the ejector assembly being used to lift the mold along a first direction; A slider assembly, wherein the slider assembly is provided with a core-pulling structure, and the slider assembly is provided with an ejection hole penetrating the slider assembly, and the core-pulling structure is used to move the product along the second direction; The ejection portion abuts against at least one inner wall of the ejection hole, and when the ejection portion moves along the first direction, it drives the slider assembly to move along the second direction; The first direction and the second direction intersect with each other.

2. The core-pulling and ejection composite mechanism according to claim 1, characterized in that: The ejection assembly further includes a main body, wherein the ejection portion and the main body are connected to each other; Furthermore, an extending direction of the ejection portion and an extending direction of the main body portion are arranged at an angle.

3. The core-pulling and ejection composite mechanism according to claim 2, characterized in that: The ejection portion includes a first abutting surface facing away from the bending direction of the ejection portion, and the ejection hole correspondingly includes a second abutting surface abutting against the first abutting surface.

4. The core-pulling and ejection composite mechanism according to claim 3, characterized in that: The ejection portion includes a first wear-resistant part provided on a side away from the bending direction of the ejection portion, and the first wear-resistant part has the first abutting surface.

5. The core-pulling and ejection composite mechanism according to claim 1, characterized in that: Also included are guide blocks; The guide block is sleeved on the main body to limit the ejection direction of the ejection assembly.

6. The core-pulling and ejection composite mechanism according to claim 5, characterized in that: The guide block includes a first guide block and a second guide block that are spaced apart.

7. The core-pulling and ejection composite mechanism according to claim 3, characterized in that: Also includes setting pins; The slider assembly is provided with a pin insertion hole, the pin is inserted into the pin insertion hole, and the pin extends along the second direction.

8. The core-pulling and ejection composite mechanism according to claim 7, characterized in that: It also includes an elastic member, which is arranged in the pin insertion hole and is arranged in a one-to-one correspondence with the pins, so that the pins are elastically connected to the pin insertion hole.

9. A mold, characterized in that: It comprises the core-pulling and ejection composite mechanism according to any one of claims 1 to 8.

10. The mold according to claim 9, characterized in that Also includes a base; The base is provided with a slide groove, and the slide groove extends along the second direction; The slider assembly is arranged in the slide groove, and the main body of the ejection assembly passes through the base.

11. The mold according to claim 10, characterized in that A limiting member is provided in the slide groove, and the limiting member is configured to limit the sliding distance of the slider assembly in the slide groove.

12. The mold according to claim 10, characterized in that It also includes a pressing block connected to the base to press the slider assembly into the sliding groove.

13. The mold according to claim 12, characterized in that The slider assembly has step structures at opposite ends in the third direction, and the height of the step structures along the first direction matches the depth of the slide groove along the first direction; The pressing block includes a first pressing block and a second pressing block, wherein the first pressing block and the second pressing block are respectively arranged on opposite sides of the chute in the third direction, and the first pressing block and the second pressing block are configured to press the step structure into the chute; The third direction is perpendicular to the first direction and the second direction.

14. The mold according to claim 10, characterized in that Also includes bottom needle plate; One end of the ejection assembly away from the ejection portion is connected to the bottom needle plate; When the bottom needle plate moves along the first direction, it is suitable for driving the ejection assembly to move along the first direction.

15. The mold according to claim 10, characterized in that The base is provided with a pin insertion slot corresponding to the pin insertion; When the slider assembly moves along the second direction, it drives one end of the pin to enter the pin slot or escape from the pin slot.

16. The mold according to claim 10, characterized in that The first guide block and the second guide block are connected to the base, and the first guide block and the second guide block are respectively arranged on two opposite sides of the base in the first direction.

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