CN215039896U - Lever type core pulling structure of injection mold - Google Patents
Lever type core pulling structure of injection mold Download PDFInfo
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- CN215039896U CN215039896U CN202122437481.0U CN202122437481U CN215039896U CN 215039896 U CN215039896 U CN 215039896U CN 202122437481 U CN202122437481 U CN 202122437481U CN 215039896 U CN215039896 U CN 215039896U
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Abstract
The utility model discloses an injection mold lever structure of loosing core, include: the device comprises a rear template, a fixed seat arranged on the rear template, and an ejector rod, a core pulling rod and a lever which are arranged on the fixed seat, wherein the ejector rod and the core pulling rod are arranged in parallel up and down; the utility model discloses a lever structure of loosing core replaces traditional hydro-cylinder core-pulling formula structure, through mutual mechanical action between each component structure, carries out stability restriction to the structure of loosing core fixed, has avoided because the product quality problem that the instability that traditional hydro-cylinder was loosed core caused, in addition, has realized the synchronous drawing of core drawing of patterns process at the die sinking in-process, has saved product drawing of patterns time, has improved production efficiency.
Description
Technical Field
The utility model relates to an injection mold designs the field, especially relates to an injection mold lever structure of loosing core.
Background
In the prior art, the core pulling mechanism of the injection mold usually adopts a mode that an oil cylinder drives a core pulling block to realize demolding, the injection molding machine is high in input cost, in addition, when the mold is closed and the injection molding is carried out, the locking force of the oil cylinder is poor, the stability is poor, if the injection molding pressure is too large, the core pulling block is easy to eject and shift, and the quality problems of multiple glue, flash and the like of a product are caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide an injection mold lever type core-pulling structure.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides an injection mold lever structure of loosing core, includes: the rear template, install in the fixing base on the rear template, and install ejector pin, the core rod of taking out and lever on the fixing base, ejector pin and core rod of taking out parallel arrangement from top to bottom, the lever is arc structure, the lever passes through the pivot to be installed in the fixing base, the upper end and the lower extreme of lever butt ejector pin and the rear end of taking out the core rod respectively, it has reset spring to overlap on the core rod of taking out.
The core pulling device comprises a fixed seat, a core pulling rod, a spring limiting groove, a reset spring sleeve and a spring limiting groove, wherein a top rod groove, a core pulling rod groove and a lever groove are formed in the fixed seat, the lever groove is transversely communicated with the top rod groove and the core pulling rod groove respectively, the rear half part of the core pulling rod groove is provided with the spring limiting groove, and the reset spring sleeve is arranged at the rear half part of the core pulling rod and is located in the spring limiting groove.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts the lever type core pulling structure to replace the traditional oil cylinder core pulling structure, and the core pulling structure is fixed by the stability limitation through the mutual mechanical action among all the components, thereby avoiding the product quality problem caused by the instability of the traditional oil cylinder core pulling; in addition, a synchronous core-pulling demoulding procedure is realized in the mould opening process, so that the demoulding time of the product is saved, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial three-dimensional structure of the present invention;
fig. 3 is a schematic structural view of the fixing base of the present invention.
In the figure: 1-rear template; 2-a fixed seat; 21-a jack rod groove; 22-core rod groove; 23-a lever slot; 24-a spring limit groove; 3-a top rod; 4-core pulling rod; 5-a lever; 6-axle pin; 7-a return spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 3, the utility model provides an injection mold lever structure of loosing core, include: the drawing die comprises a rear die plate 1, a fixed seat 2 installed on the rear die plate 1, a push rod 3, a drawing core rod 4 and a lever 5, wherein the push rod 3 and the drawing core rod 4 are arranged in parallel up and down, the lever 5 is of an arc-shaped structure, the lever 5 is installed in the fixed seat 2 through a shaft pin 6, the upper end and the lower end of the lever 5 are respectively abutted to the push rod 3 and the rear end of the drawing core rod 4, and a reset spring 7 is sleeved on the drawing core rod 4.
More specifically, set up ejector pin groove 21, core-pulling rod groove 22 and lever groove 23 on the fixing base 2, lever groove 23 respectively with ejector pin groove 21 and core-pulling rod groove 22 transversely link up, spring spacing groove 24 is seted up to the latter half of core-pulling rod groove 22, reset spring 7 cover in the latter half of core-pulling rod 4, and be located in spring spacing groove 24.
The utility model discloses a concrete working process does:
in the process of closing the front template and the rear template 1, the front template wall pushes the front end of the ejector rod 3 into the fixed seat 2, the rear end of the ejector rod 3 pushes the upper end of the lever 5 backwards, so that the lever 5 rotates by taking the shaft pin 6 as a rotating shaft, the lower end of the lever 5 moves forwards, the lower end of the lever 5 pushes the core pulling rod 4 to move forwards, and the front end of the core pulling rod 4 extends out of the fixed seat 2; in the process, the front end of the return spring 7 is propped against the front inner wall of the spring limiting groove 24, and the rear end of the core pulling rod 4 compresses the return spring 7 forwards.
And after the injection molding is finished, in the process of opening the front template and the rear template 1, the wall of the front template loses the jacking force on the ejector rod 3, and the core pulling rod 4 is ejected backwards under the elastic action of the return spring 7, so that the front end of the core pulling rod 4 is pulled out of the core pulling structure of the product.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. The utility model provides an injection mold lever structure of loosing core which characterized in that includes: the drawing die comprises a rear die plate (1), a fixed seat (2) installed on the rear die plate (1), and a push rod (3), a drawing core rod (4) and a lever (5) which are installed on the fixed seat (2), wherein the push rod (3) and the drawing core rod (4) are arranged in parallel from top to bottom, the lever (5) is of an arc-shaped structure, the lever (5) is installed in the fixed seat (2) through a shaft pin (6), the upper end and the lower end of the lever (5) are respectively abutted to the rear ends of the push rod (3) and the drawing core rod (4), and a reset spring (7) is sleeved on the drawing core rod (4).
2. An injection mold lever type core pulling structure as claimed in claim 1, wherein the fixing seat (2) is provided with a ejector rod groove (21), a core pulling rod groove (22) and a lever groove (23), the lever groove (23) is transversely communicated with the ejector rod groove (21) and the core pulling rod groove (22), the rear half part of the core pulling rod groove (22) is provided with a spring limiting groove (24), and the reset spring (7) is sleeved on the rear half part of the core pulling rod (4) and is located in the spring limiting groove (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122437481.0U CN215039896U (en) | 2021-10-11 | 2021-10-11 | Lever type core pulling structure of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122437481.0U CN215039896U (en) | 2021-10-11 | 2021-10-11 | Lever type core pulling structure of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215039896U true CN215039896U (en) | 2021-12-07 |
Family
ID=79218291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122437481.0U Active CN215039896U (en) | 2021-10-11 | 2021-10-11 | Lever type core pulling structure of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215039896U (en) |
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2021
- 2021-10-11 CN CN202122437481.0U patent/CN215039896U/en active Active
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