Ejector pin structure of mold

Abstract

The utility model relates to the relevant technical field of ejector pins, in particular to an ejector pin structure of a mold, which comprises an ejector pin, an ejection mechanism is arranged on the surface of one side of the ejector pin, and an adjusting mechanism is arranged on the surface of one side of the ejector pin. When the stamping device conducts stamping forming on the die, the stamping device can eject the die out of the stamping device through the ejector pin, at the moment, the ejector shell makes contact with the die firstly, at the moment, the die extrudes the ejector shell into the mounting groove, and along with separation of the die and the stamping device, the spring can eject the ejector shell out to thoroughly separate the die from the stamping device; and meanwhile, the first limiting block can prevent the top shell from being popped out, when the ejector pin needs to be adjusted according to different stamping dies and is adjusted to the proper length, the ejector pin is rotated, the ejector pin drives the connecting column, then the second limiting block is rotated into the limiting groove to complete fixation, and operation can be conducted at the moment.

Description

Technical Field

[0001] The utility model relates to the technical field of ejector pins, in particular to an ejector pin structure for a mold. Background Art

[0002] An ejector pin is a kind of plastic mold fitting. The ejector pin in the ejector sleeve is the ejector pin in the ejector sleeve assembly. An ejector pin is a metal rod used to eject a plastic product, which continuously ejects the product in a high-speed rotating mold and is used for wear or machining out-of-tolerance in cooperation with the telescopic movement of the ejector sleeve. In order to better use the ejector pin, therefore, an ejector pin structure for a mold is particularly needed.

[0003] However, for existing ejector pins, most of them may have problems such as ejecting the product white or unable to eject, and different ejector pin lengths also have different effects during use. However, frequently replacing ejector pins with different lengths affects work efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an ejector pin structure for a mold to solve the problems in the above background art that for existing ejector pins, most of them may have problems such as ejecting the product white or unable to eject, and different ejector pin lengths also have different effects during use. However, frequently replacing ejector pins with different lengths affects work efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An ejector pin structure for a mold, including an ejector pin, wherein a pop-up mechanism is arranged on one side surface of the ejector pin, and an adjustment mechanism is arranged on one side surface of the ejector pin;

[0006] The pop-up mechanism includes an installation groove, a first sliding groove, a spring, a top shell, and a first limiting block. An installation groove is opened on one end surface of the ejector pin, a first sliding groove is opened on one side surface of the ejector pin, a spring is fixedly connected to the inner side surface of the installation groove, one end surface of the spring is fixedly connected to the top shell, and a first limiting block is fixedly connected to one side surface of the top shell.

[0007] Preferably, the inner wall size of the installation groove matches the outer wall size of the top shell, and the first sliding groove is symmetrically opened with respect to the central axis of the ejector pin.

[0008] Preferably, the inner wall size of the first sliding groove matches the outer wall size of the first limiting block, and the first limiting block is symmetrically installed with respect to the central axis of the top shell.

[0009] Preferably, one end surface of the spring is fixedly connected to the installation groove, and the other end surface of the spring is fixedly connected to the top shell.

[0010] Preferably, the adjusting mechanism includes a connecting column, a second limiting block, a housing, a second sliding groove and a limiting groove. A connecting column is fixedly connected to one side surface of the thimble. A second limiting block is fixedly connected to one side surface of the connecting column. A housing is fixedly connected to the outer side surface of the connecting column. A second sliding groove is formed in one side surface of the housing. A limiting groove is formed in one side surface of the second sliding groove.

[0011] Preferably, the limiting grooves are symmetrically formed with respect to the central axis of the housing, and the second sliding grooves are symmetrically formed with respect to the central axis of the housing.

[0012] Preferably, the second limiting blocks are symmetrically installed with respect to the central axis of the connecting column, and the outer wall dimension of the second limiting block matches the inner wall dimension of the second sliding groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the thimble structure of the mold, through the arrangement of the installation groove, the first sliding groove, the spring, the top shell and the first limiting block, during use, the thimble is installed in the stamping device. When the stamping device stamps the mold into shape, at this time, the stamping device will eject the mold from the stamping device through the thimble. At this time, the top shell will first contact the mold, and the mold will squeeze the top shell into the installation groove. As the mold is separated from the stamping device, the spring will eject the top shell to completely separate the mold from the stamping device. At the same time, the first limiting block can prevent the top shell from being ejected. When it is necessary to adjust the thimble according to different stamping molds, pull the thimble, and the thimble drives the connecting column. At this time, the second limiting block will slide in the second sliding groove. When adjusted to the appropriate length, rotate the thimble, and the thimble drives the connecting column, so that the second limiting block turns into the limiting groove to complete the fixation. At this time, it can be operated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the ejection mechanism structure of the present utility model;

[0016] Figure 3 is a schematic diagram of the adjusting mechanism structure of the present utility model;

[0017] Figure 4 is a schematic diagram of the overall sectional structure of the present utility model.

[0018] In the figure: 1. Thimble; 2. Ejection mechanism; 201. Installation groove; 202. First sliding groove; 203. Spring; 204. Top shell; 205. First limiting block; 3. Adjusting mechanism; 301. Connecting column; 302. Second limiting block; 303. Housing; 304. Second sliding groove; 305. Limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution: a thimble structure of a mold, including a thimble 1, a pop-up mechanism 2 is arranged on one side surface of the thimble 1, and an adjusting mechanism 3 is arranged on one side surface of the thimble 1;

[0021] The pop-up mechanism 2 includes an installation groove 201, a first chute 202, a spring 203, a top shell 204, and a first limiting block 205. An installation groove 201 is opened on one end surface of the thimble 1, and a first chute 202 is opened on one side surface of the thimble 1. The inner side surface of the installation groove 201 is fixedly connected with a spring 203, one end surface of the spring 203 is fixedly connected with a top shell 204, and one side surface of the top shell 204 is fixedly connected with a first limiting block 205. Through the settings of the installation groove 201, the first chute 202, the spring 203, the top shell 204, and the first limiting block 205, during use, the spring 203 is placed in the installation groove 201 and fixed by the top shell 204. During use, the thimble 1 is installed in the stamping device. When the stamping device stamps the mold into shape, at this time, the stamping device will eject the mold from the stamping device through the thimble 1. At this time, the top shell 204 will first contact the mold, and at this time, the mold will squeeze the top shell 204 into the installation groove 201. As the mold is separated from the stamping device, the spring 203 will eject the top shell 204 to completely separate the mold from the stamping device. At the same time, the first limiting block 205 can prevent the top shell 204 from being ejected.

[0022] Furthermore, the inner wall size of the installation groove 201 matches the outer wall size of the top shell 204, and the first chute 202 is symmetrically opened with respect to the central axis of the thimble 1. Through the setting of the installation groove 201, during use, the installation groove 201 provides space for the installation of the spring 203 and the top shell 204, and at the same time does not affect the normal use of the thimble 1.

[0023] Furthermore, the inner wall size of the first chute 202 matches the outer wall size of the first limiting block 205, and the first limiting block 205 is symmetrically installed with respect to the central axis of the top shell 204. Through the setting of the first limiting block 205, during use, the first limiting block 205 can limit the movement range of the top shell 204, and at the same time can prevent the top shell 204 from being ejected during the reset process.

[0024] Further, one end surface of the spring 203 is fixedly connected to the mounting groove 201, and the other end surface of the spring 203 is fixedly connected to the top shell 204. Through the arrangement of the spring 203, during use, the spring 203 can enable the top shell 204 to quickly reset after being squeezed, effectively improving the work efficiency.

[0025] Further, the adjusting mechanism 3 includes a connecting column 301, a second limiting block 302, a housing 303, a second sliding groove 304, and a limiting groove 305. One side surface of the ejector pin 1 is fixedly connected to the connecting column 301. One side surface of the connecting column 301 is fixedly connected to the second limiting block 302. The outer side surface of the connecting column 301 is fixedly connected to the housing 303. A second sliding groove 304 is formed on one side surface of the housing 303. A limiting groove 305 is formed on one side surface of the second sliding groove 304. Through the arrangement of the connecting column 301, the second limiting block 302, the housing 303, the second sliding groove 304, and the limiting groove 305, during use, when it is necessary to adjust the ejector pin 1 according to different stamping dies, pull the ejector pin 1, and the ejector pin 1 drives the connecting column 301. At this time, the second limiting block 302 will slide in the second sliding groove 304. When adjusted to an appropriate length, rotate the ejector pin 1, and the ejector pin 1 drives the connecting column 301, thereby causing the second limiting block 302 to turn into the limiting groove 305 to complete the fixation. At this time, it can operate.

[0026] Further, the limiting grooves 305 are symmetrically formed with respect to the central axis of the housing 303, and the second sliding grooves 304 are symmetrically formed with respect to the central axis of the housing 303. Through the arrangement of the limiting grooves 305, during use, rotate the connecting column 301 to cause the second limiting block 302 to turn into the limiting groove 305 to complete the fixation.

[0027] Further, the second limiting blocks 302 are symmetrically installed with respect to the central axis of the connecting column 301, and the outer wall size of the second limiting block 302 matches the inner wall size of the second sliding groove 304. Through the arrangement of the second sliding groove 304, during use, the second sliding groove 304 limits the movement space of the second limiting block 302.

[0028] Working principle: When in use, the ejector pin 1 is installed in the stamping device. When the stamping device stamps the mold into shape, at this time, the stamping device will eject the mold from the stamping device through the ejector pin 1. At this time, the top shell 204 will first contact the mold, and the mold will squeeze the top shell 204 into the installation groove 201. As the mold separates from the stamping device, the spring 203 will eject the top shell 204 to completely separate the mold from the stamping device. At the same time, the first limiting block 205 can prevent the top shell 204 from being ejected. When it is necessary to adjust the ejector pin 1 according to different stamping molds, pull the ejector pin 1, and the ejector pin 1 drives the connecting column 301. At this time, the second limiting block 302 will slide in the second chute 304. When adjusted to the appropriate length, rotate the ejector pin 1, and the ejector pin 1 drives the connecting column 301 so that the second limiting block 302 turns into the limiting groove 305 to complete the fixation. At this time, it can be operated.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold ejector pin structure, comprising an ejector pin (1), characterized in that: A pop-up mechanism (2) is provided on one side surface of the ejector pin (1), and an adjustment mechanism (3) is provided on one side surface of the ejector pin (1); The ejection mechanism (2) comprises a mounting groove (201), a first sliding groove (202), a spring (203), a top shell (204), and a first limiting block (205); one end surface of the ejector pin (1) is provided with a mounting groove (201); one side surface of the ejector pin (1) is provided with a first sliding groove (202); the inner side surface of the mounting groove (201) is fixedly connected to a spring (203); one end surface of the spring (203) is fixedly connected to the top shell (204); and one side surface of the top shell (204) is fixedly connected to the first limiting block (205).

2. The ejector pin structure of a mold according to claim 1, characterized in that: The inner wall size of the installation groove (201) matches the outer wall size of the top shell (204), and the first sliding groove (202) is symmetrically opened with respect to the central axis of the ejector pin (1).

3. The ejector pin structure of a mold according to claim 1, characterized in that: The inner wall size of the first sliding groove (202) matches the outer wall size of the first limiting block (205), and the first limiting block (205) is installed symmetrically with respect to the central axis of the top shell (204).

4. The ejector pin structure of a mold according to claim 1, characterized in that: One end surface of the spring (203) is fixedly connected to a mounting groove (201), and the other end surface of the spring (203) is fixedly connected to a top shell (204).

5. The ejector pin structure of a mold according to claim 1, characterized in that: The adjusting mechanism (3) comprises a connecting column (301), a second limiting block (302), a shell (303), a second slide groove (304) and a limiting groove (305); a side surface of the ejector pin (1) is fixedly connected to the connecting column (301); a side surface of the connecting column (301) is fixedly connected to the second limiting block (302); an outer surface of the connecting column (301) is fixedly connected to the shell (303); a side surface of the shell (303) is provided with a second slide groove (304); and a side surface of the second slide groove (304) is provided with a limiting groove (305).

6. The ejector pin structure of a mold according to claim 5, characterized in that: The limiting groove (305) is opened symmetrically with respect to the central axis of the outer shell (303), and the second sliding groove (304) is opened symmetrically with respect to the central axis of the outer shell (303).

7. The ejector pin structure of a mold according to claim 5, characterized in that: The second limiting block (302) is installed symmetrically with respect to the central axis of the connecting column (301), and the outer wall size of the second limiting block (302) matches the inner wall size of the second sliding groove (304).

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