A pin assembly and mold

Abstract

The application provides a ejector assembly and a mold, the ejector assembly comprises a base, a first ejector module and a second ejector module; the base is provided with a through hole for the external ejector rod to pass through; the first ejector is used for contacting the injection product in the mold core of the mold; the second ejector is used for contacting the gate of the injection product; at this time, the external ejector rod contacts the second moving base when passing through the through hole and applies a moving force to the second moving base, the second ejector moves with the movement of the second moving base and ejects the gate of the injection product; when the second moving base enters the first moving groove, the first moving base and the second moving base move simultaneously under the driving of the external ejector rod, the first ejector ejects the product surface of the injection product, so that the second ejector and the first ejector cooperate to eject the injection product twice, the second ejector module is fully utilized, the ejection of the injection product at different stages is realized, and the ejection effect of the ejector assembly is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of ejector pin assemblies, and more particularly to an ejector pin assembly and a mold. Background Technology

[0002] With the development of technology, molds are an indispensable tool in industrial production, mainly used to manufacture various products. They achieve molding by changing the physical state of materials. As part of the mold, the ejector assembly is used to eject the injection-molded product. In the existing technology, the existing ejector assembly includes a base and a first ejector module. The first ejector module is movably connected to the base. The first ejector module ejects the injection-molded product during the movement. However, it only ejects once and cannot eject at different stages, resulting in poor ejection effect of the existing ejector assembly. Utility Model Content

[0003] The purpose of this utility model is to provide an ejector pin assembly and a mold. The base has a through hole for an external ejector rod to pass through. A first ejector pin module includes a first movable seat and a first ejector pin. The first movable seat moves relative to the base, and the first ejector pin is connected to and moves with the first movable seat. The first ejector pin is used to contact the injection-molded product in the mold core. The first movable seat has a first movable groove. A second ejector pin module includes a second movable seat and a second ejector pin. The second movable seat is movably connected to the first movable groove and is located between the base and the first movable seat. The second movable seat moves within the first movable groove and is elastically connected relative to the first movable seat. The second movable seat is arranged relative to the through hole and exposed within the through hole. The second ejector pin is connected to the second movable seat and... As the second movable seat moves, the second ejector pin contacts the gate of the injection molded product. At this time, the external ejector rod contacts the second movable seat when passing through the through hole and applies a moving force to the second movable seat. The second ejector pin moves with the second movable seat and ejects the injection molded product from the gate. When the second movable seat enters the first movable groove, the first and second movable seats move simultaneously under the drive of the external ejector rod. The first and second ejector pins move synchronously, and the first ejector pin ejects the surface of the injection molded product. This allows the second ejector pin and the first ejector pin to cooperate in ejecting the injection molded product a second time, making full use of the second ejector pin module to achieve ejection of the injection molded product at different stages, avoiding the limitation of only one ejection and improving the ejection effect of the ejector pin assembly.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pin assembly, comprising: The base has a through hole for an external ejector rod to pass through. The first ejector module includes a first movable seat and a first ejector pin; the first movable seat moves relative to the base, the first ejector pin is connected to the first movable seat and moves with the movement of the first movable seat, and the first ejector pin is used to contact the injection molded product in the mold core of the mold; the first movable seat is provided with a first moving groove. The second ejector module includes a second movable seat and a second ejector pin; the second movable seat is movably connected to the first movable groove and is located between the base and the first movable seat; the second movable seat moves within the first movable groove and is elastically connected relative to the first movable seat; the second movable seat is arranged relative to the through hole and exposed to the through hole; the second ejector pin is connected to the second movable seat and moves with the movement of the second movable seat, and the second ejector pin is used to contact the gate of the injection molded product; At this time, the external ejector rod contacts the second movable seat when passing through the through hole and applies a moving force to the second movable seat. The second ejector pin moves with the movement of the second movable seat and ejects from the gate of the injection molded product. When the second movable seat enters the first movable groove, the first movable seat and the second movable seat move simultaneously under the drive of the external ejector rod. The first ejector pin and the second ejector pin move synchronously, and the first ejector pin ejects from the surface of the injection molded product.

[0005] Optionally, the first movable groove is recessed in the side wall of the first movable seat facing the base; The base is provided with a second movable groove, which is located on the side of the through hole facing the first movable groove and connects the through hole and the first movable groove; the second movable groove and the first movable groove form a movable space, the second movable seat is located in the second movable groove and can move within the movable space to pass through the second movable groove and the first movable groove.

[0006] Optionally, an elastic element is provided in the first movable groove, which is located between the second movable seat and the first movable seat and elastically contacts the second movable seat and the first movable seat; the elastic element is compressed as the second movable seat moves; When the first movable seat and the second movable seat are aligned, the first movable seat and the second movable seat move synchronously under the action of the external ejector rod.

[0007] Optionally, there are multiple elastic elements, which are distributed at different positions of the first movable seat and arranged in an array.

[0008] Optionally, the first movable seat is provided with a through hole, and the second ejector pin is fixedly connected to the second movable seat and passes through the through hole; The second ejector pin has multiple pins, which are distributed and act on the gate of each injection molded product; the second ejector pin is staggered from the first ejector pin.

[0009] Optionally, the first movable seat includes a first connecting plate and a second connecting plate, which are stacked and connected to each other; The first ejector pin has a first end and a first ejector pin body. The first end is located between the first connecting plate and the second connecting plate and is positioned and connected. The first ejector pin body is connected to the first end and passes through the second connecting plate.

[0010] Optionally, the second movable seat includes a third connecting plate and a fourth connecting plate, which are stacked and connected to each other.

[0011] Optionally, the second ejector pin has a second end and a second ejector pin body. The second end is located between the third connecting plate and the fourth connecting plate and is positioned and connected. The second ejector pin body is connected to the second end and passes through the first movable seat.

[0012] Optionally, the length of the first ejector pin is less than the length of the second ejector pin.

[0013] To achieve the above objectives, this utility model provides the following technical solution: a mold, including the aforementioned ejector pin assembly.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an ejector pin assembly and a mold. The base has a through hole for an external ejector pin to pass through. A first ejector pin module includes a first movable seat and a first ejector pin. The first movable seat moves relative to the base, and the first ejector pin is connected to and moves with the first movable seat. The first ejector pin is used to contact the injection-molded product in the mold core. The first movable seat has a first movable groove. A second ejector pin module includes a second movable seat and a second ejector pin. The second movable seat is movably connected to the first movable groove and is located between the base and the first movable seat. The second movable seat moves within the first movable groove and is elastically connected relative to the first movable seat. The second movable seat is arranged relative to the through hole and exposed in the through hole. The second ejector pin is connected to the second movable seat and moves with the mold core. The second moving seat moves along with the second ejector pin, which contacts the gate of the injection molded product. At this time, the external ejector rod contacts the second moving seat when passing through the through hole and applies a moving force to the second moving seat. The second ejector pin moves along with the second moving seat and ejects the injection molded product from the gate. When the second moving seat enters the first moving groove, the first and second moving seats move simultaneously under the drive of the external ejector rod. The first and second ejector pins move synchronously, and the first ejector pin ejects the surface of the injection molded product. This allows the second ejector pin and the first ejector pin to cooperate in ejecting the injection molded product a second time, making full use of the second ejector pin module to achieve ejection of the injection molded product at different stages, avoiding the limitation of only one ejection and improving the ejection effect of the ejector pin assembly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0017] Figure 1 A schematic diagram of a pin assembly according to an embodiment of this application is shown.

[0018] Figure 2 A cross-sectional view of a pin assembly according to an embodiment of this application is shown.

[0019] Figure 3 A schematic diagram of a first ejector module of an ejector assembly according to an embodiment of this application is shown.

[0020] Figure 4A cross-sectional view of a first ejector module of an ejector assembly according to an embodiment of this application is shown.

[0021] Figure 5 A schematic diagram of a second ejector module of an ejector assembly according to an embodiment of this application is shown.

[0022] Figure 6 A cross-sectional view of a second ejector module of an ejector assembly according to an embodiment of this application is shown.

[0023] Attached Figure

[0024] 100. Ejector pin assembly; 10. Base plate; 10a. Through hole; 10b. Second moving groove; 20. First ejector pin module; 21. First movable seat; 21a. First movable groove; 21b. Through hole; 211. First connecting plate; 212. Second connecting plate; 22. First ejector pin; 221. First end; 222. First ejector pin body; 23. Elastic element; 30. Second ejector pin module; 31. Second movable seat; 311. Third connecting plate; 312. Fourth connecting plate; 32. Second ejector pin; 321. Second end; 322. Second ejector pin body. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] Please refer to the attached document. Figures 1-6 This application provides an ejector assembly 100, which is applied to a mold and is used to eject the injection molded product a second time.

[0027] Please refer to the attached document. Figures 1-6In this embodiment, the ejector assembly 100 includes a base 10, a first ejector module 20, and a second ejector module 32 30. The base 10 has a through hole 10a for an external ejector rod to pass through. The first ejector module 20 includes a first movable seat 21 and a first ejector 22. The first movable seat 21 moves relative to the base 10, and the first ejector 22 is connected to the first movable seat 21 and moves with the first movable seat 21. The first ejector 22 is used to contact the injection molded product in the mold core. The first movable seat 21 has a first movable groove 21a. The second ejector module 30 includes a second movable seat 31 and a second ejector 32. The second movable seat 31 is movably connected to the first movable groove 21a and is located between the base 10 and the first movable seat 21. The second movable seat 31 moves within the first movable groove 21a and is elastically connected relative to the first movable seat 21. The second movable seat 31 is arranged relative to the through hole 10a and exposed to the through hole 10a. Through hole 10a; the second ejector pin 32 is connected to the second movable seat 31 and moves with the movement of the second movable seat 31. The second ejector pin 32 is used to contact the gate of the injection molded product. At this time, the external ejector rod contacts the second movable seat 31 when it passes through the through hole 10a and applies a moving force to the second movable seat 31. The second ejector pin 32 moves with the movement of the second movable seat 31 and ejects the injection molded product from the gate. When the second movable seat 31 enters the first movable groove 21a, the first movable seat 21 and the second movable seat 31 move simultaneously under the drive of the external ejector rod. The first ejector pin 22 and the second ejector pin 32 move synchronously. The first ejector pin 22 ejects the product surface of the injection molded product so that the second ejector pin 32 and the first ejector pin 22 can cooperate to eject the injection molded product a second time. The second ejector pin 32 module 30 is fully utilized to realize the ejection of the injection molded product at different stages, avoiding only one ejection and improving the ejection effect of the ejector pin assembly 100.

[0028] Please refer to the attached document. Figures 1-6 In this embodiment of the application, the base 10 is provided with a through hole 10a, which is used for an external ejector rod to pass through; so that the external ejector rod can pass through the space of the through hole 10a to pass through the base 10.

[0029] The first ejector module 20 includes a first movable seat 21 and a first ejector pin 22. The first movable seat 21 is movable relative to the base 10 to adjust its position relative to the base 10. The first ejector pin 22 is connected to the first movable seat 21 and moves with the first movable seat 21. The first ejector pin 22 is used to contact the injection molded product in the mold core to achieve the first ejection of the injection molded product. The first movable seat 21 is provided with a first moving groove 21a.

[0030] The second ejector pin module 30 includes a second movable seat 31 and a second ejector pin 32. The second movable seat 31 is movably connected to the first movable groove 21a and is located between the base 10 and the first movable seat 21. The second movable seat 31 moves within the first movable groove 21a and is elastically connected relative to the first movable seat 21 to facilitate adjustment of the position of the second movable seat 31 relative to the first movable seat 21. The second movable seat 31 is arranged relative to and exposed to the through hole 10a. The second ejector pin 32 is connected to the second movable seat 31 and moves with the movement of the second movable seat 31. The second ejector pin 32 is used to contact the gate of the injection molded product to achieve a second ejection of the injection molded product.

[0031] At this time, the external ejector rod contacts the second movable seat 31 when it passes through the through hole 10a, and applies a moving force to the second movable seat 31. The second ejector pin 32 moves with the movement of the second movable seat 31 and ejects from the gate of the injection molded product. When the second movable seat 31 enters the first movable groove 21a, the first movable seat 21 and the second movable seat 31 move simultaneously under the drive of the external ejector rod. The first ejector pin 22 and the second ejector pin 32 move synchronously. The first ejector pin 22 ejects from the surface of the injection molded product, so that the second ejector pin 32 and the first ejector pin 22 can cooperate to eject the injection molded product a second time. The second ejector pin 32 module 30 is fully utilized to realize the ejection of the injection molded product at different stages, avoids only one ejection, and improves the ejection effect of the ejector pin assembly 100.

[0032] Please refer to the attached document. Figures 1-2 In this embodiment, the first movable groove 21a is recessed in the side wall of the first movable seat 21 facing the base; the first movable groove 21a is recessed from the bottom to the top of the first movable seat 21. The base is provided with a second movable groove 10b, which is located on the side of the through hole 10a facing the first movable groove. The second movable groove 10b is recessed from the top to the bottom of the base and connects the through hole 10a and the first movable groove; the second movable groove 10b and the first movable groove 21a form a movable space. The second movable seat 31 is located in the second movable groove 10b and can move within the movable space to pass through the second movable groove 10b and the first movable groove 21a, so that the second movable seat 31 can move relative to the second movable groove 10b and the first movable groove 21a.

[0033] Please refer to the attached document. Figures 1-2In this embodiment, an elastic element 23 is provided in the first moving groove 21a. The elastic element 23 is located between the second moving seat 31 and the first moving seat 21, and elastically contacts the second moving seat 31 and the first moving seat 21, so that the second moving seat 31 can move elastically relative to the first moving seat 21 through the elastic element 23. The elastic element 23 is compressed as the second moving seat 31 moves; when the first moving seat 21 and the second moving seat 31 are flush, the first moving seat 21 and the second moving seat 31 move synchronously under the drive of the external ejector rod, so that the first ejector pin 22 connected to the first moving seat 21 and the second ejector pin 32 connected to the second moving seat 31 cooperate to perform secondary ejection of the injection molded product, so as to realize the ejection of the injection molded product at different stages.

[0034] When the external ejector rod disengages from the second movable seat 31, the second movable seat 31 is reset under the action of the elastic member 23, so that the second movable seat 31 can move automatically relative to the second movable groove 10b.

[0035] Please refer to the attached document. Figures 1-2 In this embodiment of the application, there are multiple elastic elements 23, which are distributed at different positions of the first movable seat 21 and arranged in an array. By arranging multiple elastic elements 23, the elastic movement stability of the second movable seat 31 relative to the first movable seat 21 is increased, avoiding the second movable seat 31 from being tilted during the movement of the first movable seat 21, and ensuring the movement stability of the second movable seat 31 relative to the first movable seat 21.

[0036] Please refer to the attached document. Figures 1-2 In this embodiment of the application, the first movable seat 21 is provided with a through hole 21b, and the second ejector pin 32 is fixedly connected to the second movable seat 31 and passes through the through hole 21b; so that the second ejector pin 32 can pass through the space of the through hole 21b to pass through the first movable seat 21, thereby facilitating the extension of the second ejector pin 32 to the injection molded product through the first movable seat 21.

[0037] Multiple second ejector pins 32 are distributed and act on the gate of each injection molded product to facilitate ejection of each injection molded product from the gate. The second ejector pins 32 and the first ejector pin 22 are staggered to facilitate ejection of the injection molded product from different positions by the second ejector pins 32 and the first ejector pin 22, thus ensuring the ejection effect of the injection molded product.

[0038] Please refer to the attached document. Figures 3-4In this embodiment, the first movable seat 21 includes a first connecting plate 211 and a second connecting plate 212, which are stacked and connected to each other. The first ejector pin 22 has a first end 221 and a first ejector pin body 222. The first end 221 is located between the first connecting plate 211 and the second connecting plate 212 and is positioned and connected so that the first connecting plate 211 and the second connecting plate 212 cooperate to limit the range of motion of the first end 221, thus ensuring the positional accuracy of the first ejector pin 22 relative to the first movable seat 21. The first ejector pin body 222 is connected to the first end 221 and passes through the second connecting plate 212 so that the first ejector pin body 222 extends to the injection molded product, thus ensuring the ejection effect of the first ejector pin body 222 on the injection molded product.

[0039] Please refer to the attached document. Figures 5-6 In this embodiment of the application, the second movable seat 31 includes a third connecting plate 311 and a fourth connecting plate 312. The third connecting plate 311 and the fourth connecting plate 312 are stacked and connected to each other. The second ejector pin 32 is clamped between the third connecting plate 311 and the fourth connecting plate 312 to limit the range of motion of the second ejector pin 32 in the vertical direction.

[0040] Please refer to the attached document. Figures 5-6 In this embodiment, the second ejector pin 32 has a second end portion 321 and a second ejector pin body 322. The second end portion 321 is located between the third connecting plate 311 and the fourth connecting plate 312 and is positioned and connected to them so that the third connecting plate 311 and the fourth connecting plate 312 can cooperate to limit the range of motion of the second end portion 321, thus ensuring the positional accuracy of the second ejector pin 32 relative to the second movable seat 31. The second ejector pin body 322 is connected to the second end portion 321 and passes through the first movable seat 21 so that the second ejector pin body 322 can extend to the injection molded product, thus ensuring the ejection effect of the second ejector pin body 322 on the injection molded product.

[0041] Please refer to the attached document. Figures 3-6 In this embodiment, the length of the first ejector pin 22 is less than the length of the second ejector pin 32, so as to achieve different height positions of the first ejector pin 22 and the second ejector pin 32 in contact with the injection molded product, thus ensuring the secondary ejection effect of the first ejector pin 22 and the second ejector pin 32 on the injection molded product.

[0042] In the second application embodiment, a mold includes an ejector assembly 100, which is part of the mold and is used to manufacture various products by changing the physical state of the material to achieve molding processing.

[0043] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an ejector pin assembly 100 and a mold. A base 10 has a through hole 10a for an external ejector rod to pass through. A first ejector pin module 20 includes a first movable seat 21 and a first ejector pin 22. The first movable seat 21 moves relative to the base 10, and the first ejector pin 22 is connected to the first movable seat 21 and moves with the first movable seat 21. The first ejector pin 22 is used to contact the injection-molded product in the mold core. The first movable seat 21 has a first movable groove 21a. A second ejector pin module 30 includes a second movable seat 31 and a second ejector pin 32. The second movable seat 31 is movably connected to the first movable groove 21a and is located between the base 10 and the first movable seat 21. The second movable seat 31 moves within the first movable groove 21a and is elastically connected relative to the first movable seat 21. The second movable seat 31 is arranged relative to the through hole 10a and exposed in the through hole 10a. The second ejector pin 32... Connected to the second movable seat 31 and moving with the second movable seat 31, the second ejector pin 32 is used to contact the gate of the injection molded product. At this time, the external ejector rod contacts the second movable seat 31 when passing through the through hole 10a and applies a moving force to the second movable seat 31. The second ejector pin 32 moves with the second movable seat 31 and ejects the injection molded product from the gate. When the second movable seat 31 enters the first movable groove 21a, the first movable seat 21 and the second movable seat 31 move simultaneously under the drive of the external ejector rod. The first ejector pin 22 and the second ejector pin 32 move synchronously. The first ejector pin 22 ejects the product surface of the injection molded product so that the second ejector pin 32 and the first ejector pin 22 can cooperate to eject the injection molded product a second time. The second ejector pin 32 module 30 is fully utilized to realize the ejection of the injection molded product at different stages, avoiding only one ejection and improving the ejection effect of the ejector pin assembly 100.

[0044] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0045] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0046] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A ejector pin assembly, characterized in that, include: The base has a through hole for an external ejector rod to pass through. The first ejector module includes a first movable seat and a first ejector pin; the first movable seat moves relative to the base, the first ejector pin is connected to the first movable seat and moves with the movement of the first movable seat, and the first ejector pin is used to contact the injection molded product in the mold core of the mold; the first movable seat is provided with a first moving groove. The second ejector module includes a second movable seat and a second ejector pin; the second movable seat is movably connected to the first movable groove and is located between the base and the first movable seat; the second movable seat moves within the first movable groove and is elastically connected relative to the first movable seat; the second movable seat is arranged relative to the through hole and exposed to the through hole; the second ejector pin is connected to the second movable seat and moves with the movement of the second movable seat, and the second ejector pin is used to contact the gate of the injection molded product; At this time, the external ejector rod contacts the second movable seat when passing through the through hole and applies a moving force to the second movable seat. The second ejector pin moves with the movement of the second movable seat and ejects from the gate of the injection molded product. When the second movable seat enters the first movable groove, the first movable seat and the second movable seat move simultaneously under the drive of the external ejector rod, the first ejector pin and the second ejector pin move synchronously, and the first ejector pin ejects the product surface of the injection molded product.

2. The ejector pin assembly according to claim 1, characterized in that, The first movable groove is recessed in the side wall of the first movable seat facing the base; The base is provided with a second movable groove, which is located on the side of the through hole facing the first movable groove and connects the through hole and the first movable groove; the second movable groove and the first movable groove form a movable space, the second movable seat is located in the second movable groove and can move within the movable space to pass through the second movable groove and the first movable groove.

3. The ejector pin assembly according to claim 1, characterized in that, An elastic element is provided in the first movable groove. The elastic element is located between the second movable seat and the first movable seat and elastically contacts the second movable seat and the first movable seat; the elastic element is compressed as the second movable seat moves. When the first movable seat and the second movable seat are aligned, the first movable seat and the second movable seat move synchronously under the action of the external ejector rod.

4. The ejector pin assembly according to claim 3, characterized in that, The elastic element is multiple, and the multiple elastic elements are distributed at different positions of the first movable seat and arranged in an array.

5. The ejector pin assembly according to claim 1, characterized in that, The first movable seat is provided with a through hole, and the second ejector pin is fixedly connected to the second movable seat and passes through the through hole; The second ejector pin has multiple pins, which are distributed and act on the gate of each injection molded product; the second ejector pin is staggered from the first ejector pin.

6. The ejector pin assembly according to claim 1, characterized in that, The first movable seat includes a first connecting plate and a second connecting plate, which are stacked and connected to each other. The first ejector pin has a first end and a first ejector pin body. The first end is located between the first connecting plate and the second connecting plate and is positioned and connected. The first ejector pin body is connected to the first end and passes through the second connecting plate.

7. The ejector pin assembly according to claim 1, characterized in that, The second movable seat includes a third connecting plate and a fourth connecting plate, which are stacked and connected to each other.

8. The ejector pin assembly according to claim 7, characterized in that, The second ejector pin has a second end and a second ejector pin body. The second end is located between the third connecting plate and the fourth connecting plate and is positioned and connected. The second ejector pin body is connected to the second end and passes through the first movable seat.

9. The ejector pin assembly according to claim 1, characterized in that, The length of the first ejector pin is less than the length of the second ejector pin.

10. A mold, characterized in that, Includes the ejector pin assembly as described in any one of claims 1 to 9.

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