Quick release insert structure

Abstract

The utility model relates to the technical field of molds, in particular to a quick release insert structure which comprises a mold core, at least one accommodating position is arranged on the mold core, an insert is placed in the accommodating position, at least one through hole penetrating to the lower end face of the insert is formed in the upper end of the insert, a fastener is arranged in the through hole, and the insert is inserted into the fastener. The fastener is fixed with the inner wall of the accommodating position; wherein a protection insert is further arranged in the through hole and located at the top of the fastener, the protection insert is small in occupied space, not prone to deformation and convenient to seal glue, the structural form of a traditional plastic mold insert is broken through, a mold is easy to machine and manufacture, cost is low, and the mold is convenient to assemble and disassemble. And secondly, the insert can be replaced after the protective insert is detached from an injection machine table, so that the replacement time is greatly shortened, the working efficiency is improved, the traditional insert replacement mode is broken through, the insert can be directly replaced on the PL surface of the mold, and the operation convenience and the replacement efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a quick-release insert structure. Background Art

[0002] Injection mold inserts refer to additional components used in injection molds to enhance the wear resistance, corrosion resistance or surface hardness of mold components. These inserts are usually made of wear-resistant materials such as cemented carbide, or surface treatments such as hard chrome plating, which can increase the service life and production efficiency of the mold. In the injection molding process, the design and selection of inserts play an important role in the performance and stability of the mold.

[0003] In the existing mold structure, the insert is fixed in the mold core, and the mold core is fixed to the movable mold. For example, China Patent Publication No. "CN206297091 U" discloses an injection mold and a mold with an insert, which relates to the technical field of molds, including: a cover plate, an A plate, a B plate, a front mold core, a rear mold core, a mold foot, a ejector fixing plate, a push plate, and a bottom plate; the protruding part of the mold cavity is provided with an insert structure, and the insert structure includes an upper insert and a lower insert, and the upper insert passes through the front mold core.

[0004] However, the current plastic insert structure has defects. That is, when replacing traditional plastic mold inserts, it is necessary to remove the mold from the injection molding machine, then disassemble the bottom plate, the ejector plate, and then remove the mold core to replace the insert. When the inserts are interchangeable, the replacement time is long, the workload is large, and it is easy to make mistakes, resulting in inconvenience in replacing the inserts. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art that when replacing an insert, the mold needs to be removed from the injection molding machine, and then the bottom plate and the ejector plate are disassembled, and then the mold core is removed to replace the insert, and the replacement time is long and the workload is large when the insert is interchangeable, and a quick-release insert structure is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A quick-release insert structure is designed, comprising a mold core, at least one accommodating position is arranged on the mold core, an insert is placed in the accommodating position, the upper end of the insert has at least one through hole penetrating to the lower end surface thereof, a fastener is arranged in the through hole, and the fastener is fixed to the inner wall of the accommodating position;

[0008] Wherein, a protective insert is also arranged in the through hole, and the protective insert is located on the top of the fastener.

[0009] Furthermore, the through hole is a step hole, the fastener is a bolt, and the bottom of the bolt is threadedly connected to the inner bottom surface of the accommodating position.

[0010] Furthermore, the bolt is a hexagon socket bolt.

[0011] Furthermore, the protection insert includes a limiting portion and a central portion, the limiting portion and the center of the central portion are colinear, and the central portion is inserted into the through hole.

[0012] Furthermore, a limiting groove is provided at the top of the through hole, and the limiting portion is placed in the limiting groove.

[0013] Furthermore, a positioning notch is provided on the end surface of the limiting groove, and the positioning notch extends along the axial direction of the through hole. A limiting edge is also provided at the bottom of the limiting portion, and the limiting edge is inserted into the positioning notch.

[0014] Furthermore, the positioning notch and the limiting edge are both configured as arc-shaped structures, and a notch is formed on the top of the limiting portion.

[0015] The utility model proposes a quick-release insert structure, which has the beneficial effect that: when the insert needs to be replaced, the utility model only needs to open the PL surface of the mold on the injection molding machine to remove the fastener, and then remove the screw to remove the insert from the mold core, and then install the new insert in the same way to achieve fast replacement of the insert on the machine, thereby saving the time of disassembling the mold. In addition, the insert mechanism has a simple structure and is easy to operate, which reduces the production cost of the mold.

[0016] The protective insert of the utility model occupies a small space, is not easy to deform and is convenient for sealing, breaking through the traditional plastic mold insert structure, and the mold processing and manufacturing are simple and low-cost. Secondly, the insert can be replaced after the protective insert is removed on the injection molding machine, which greatly shortens the replacement time and improves work efficiency. It breaks the traditional way of replacing inserts and can directly replace the inserts on the PL surface of the mold, improving the convenience of operation and replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of area A;

[0019] Figure 3 This is a schematic diagram of the insert structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the through hole structure of the utility model.

[0021] In the figure: 1, mold core; 11, receiving position; 2, insert; 21, through hole; 211, limiting groove; 212, positioning notch; 22, fastener; 23, protective insert; 231, limiting part; 232, center part; 233, limiting edge; 234, straight edge. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 An embodiment of the utility model discloses a quick-release insert structure, which specifically includes a mold core 1, on which at least one accommodating position 11 is provided, in which an insert 2 is placed, and the upper end of the insert 2 has at least one through hole 21 penetrating to the lower end surface thereof, in which a fastener 22 is provided, and the fastener 22 is fixed to the inner wall of the accommodating position;

[0024] A protective insert 23 is further provided in the through hole 21 , and the protective insert 23 is located on the top of the fastener 22 .

[0025] In some embodiments, the through hole 21 in this embodiment is a step hole, the fastener 22 is a bolt, the head end of the bolt abuts against the upper end of the step hole for limiting, and the bottom of the bolt is threadedly connected to the inner bottom surface of the accommodating position 11.

[0026] That is, in this embodiment, when the insert 2 needs to be disassembled and installed, the bolt is placed in the step hole, and the bolt is threadedly connected and fixed to the receiving position 11, so that the entire insert 2 can be fixed in the receiving position 11. Of course, when the above-mentioned insert 2 needs to be disassembled, the insert 21 can be removed by simply removing the above-mentioned bolt. It should be further noted that the bolt in this embodiment is a hexagon socket bolt.

[0027] On the basis of the above-mentioned embodiment, the protective insert 23 in the utility model includes a limiting portion 231 and a center portion 232. The limiting portion 231 and the center portion 232 are colinear, and the center portion 232 is inserted into the through hole 21. The limiting portion 231 is used to fix the position of the protective insert 23 when the entire protective insert 23 is inserted into the step hole. It should be further explained that, in this embodiment, when the protective insert 23 is installed, the bottom of the center portion 232 is in contact with the top of the above-mentioned bolt.

[0028] Furthermore, in this embodiment, a limiting groove 211 is further provided at the top of the through hole 21 , and the limiting portion 231 is placed in the limiting groove 211 .

[0029] In some embodiments, in the utility model, a positioning notch 212 is provided on the end face of the limiting groove 211, and the positioning notch 212 extends along the axial direction of the through hole 21. A limiting edge 233 is also provided at the bottom of the limiting portion 231, and the limiting edge 233 is inserted into the positioning notch 212. The positioning notch 212 and the limiting edge 233 are designed to be used for positioning during installation, so as to ensure that the protective insert 23 can be in the required position during installation.

[0030] In more detail, the positioning groove 212 and the limiting edge 233 in the embodiment of the utility model are both arranged as arc structures, a straight-edge 234 is provided on the top of the limiting portion 231, and two notches are also provided on the top of the mold core 1. The two notches are located on both sides of the step hole and are one hundred and eighty degrees apart. By adapting the above-mentioned two notches to the straight-edge 234, the positioning accuracy of the protective insert 23 is improved, and the straight-edge 234 is sealed and fixed to the two notches with glue. When disassembling, the protective insert 23 can be taken out after removing the glue, which is more convenient.

[0031] In summary, when the insert 2 needs to be replaced, the utility model only needs to open the PL surface of the mold on the injection molding machine to remove the fastener 22, and then remove the screw 3 to remove the insert 23 from the mold core 2, and then install the new insert 23 in the same way to achieve fast replacement of the insert on the machine, thereby saving the time of disassembling the mold. In addition, the insert mechanism has a simple structure and is easy to operate, which reduces the production cost of the mold.

[0032] The protective insert 23 of the utility model occupies a small space, is not easy to deform and is easy to seal, breaking through the traditional plastic mold insert structure, the mold processing is simple and the cost is low. Secondly, the insert 2 can be replaced after the protective insert 23 is removed on the injection machine, which greatly shortens the replacement time and improves work efficiency. It breaks the traditional way of replacing inserts and can directly replace the inserts on the PL surface of the mold, improving the convenience of operation and replacement efficiency.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick-release insert structure, comprising a mold core (1), characterized in that: At least one accommodating position (11) is provided on the mold core (1), an insert (2) is placed in the accommodating position (11), the upper end of the insert (2) has at least one through hole (21) penetrating to the lower end surface thereof, a fastener (22) is provided in the through hole (21), and the fastener (22) is fixed to the inner wall of the accommodating position; A protective insert (23) is also provided in the through hole (21), and the protective insert (23) is located on the top of the fastener (22).

2. A quick-release insert structure according to claim 1, characterized in that: The through hole (21) is a stepped hole, the fastener (22) is a bolt, and the bottom of the bolt is threadedly connected to the inner bottom surface of the accommodating position (11).

3. A quick-release insert structure according to claim 2, characterized in that: The bolt is a hexagon socket bolt.

4. A quick-release insert structure according to claim 2, characterized in that: The protective insert (23) comprises a limiting portion (231) and a central portion (232), wherein the limiting portion (231) and the central portion (232) are colinear, and the central portion (232) is inserted into the through hole (21).

5. A quick-release insert structure according to claim 4, characterized in that: A limiting groove (211) is also provided at the top of the through hole (21), and the limiting portion (231) is placed in the limiting groove (211).

6. A quick-release insert structure according to claim 5, characterized in that: A positioning notch (212) is provided on the end surface of the limiting groove (211), and the positioning notch (212) extends along the axial direction of the through hole (21). A limiting edge (233) is also provided at the bottom of the limiting portion (231), and the limiting edge (233) is inserted into the positioning notch (212).

7. A quick-release insert structure according to claim 6, characterized in that: The positioning notch (212) and the limiting edge (233) are both configured as arc-shaped structures, and a notch (234) is formed on the top of the limiting portion (231).

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