CN218928527U - Mould core-pulling structure and tubular product injection mold - Google Patents
Mould core-pulling structure and tubular product injection mold Download PDFInfo
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- CN218928527U CN218928527U CN202223601460.9U CN202223601460U CN218928527U CN 218928527 U CN218928527 U CN 218928527U CN 202223601460 U CN202223601460 U CN 202223601460U CN 218928527 U CN218928527 U CN 218928527U
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Abstract
The utility model provides a mould core-pulling structure and a tubular product injection mould, relates to the technical field of moulds, and solves the technical problem that in the prior art, a product is easy to be pulled due to the fact that an in-pipe inverted buckle injection product is demoulded in a forced-demoulding mode. The die core-pulling structure and the tubular product injection die comprise a die core arranged in a die cavity, wherein the end part of the die core extends to the outer side of the die cavity; the mold core comprises a mold core body and a mold core insert, the mold core body is in transmission connection with the mold core insert, a core pulling mechanism is connected to the end part of the mold core body, which is located outside the mold cavity, the core pulling mechanism drives the mold core body to move, and the mold core body drives the mold core insert to move towards the center direction of the mold core body. The utility model is used for providing a mould core pulling structure capable of rapidly demoulding and guaranteeing demoulding quality and a tubular product injection mould.
Description
Technical Field
The utility model relates to the technical field of molds, in particular to a mold core-pulling structure and a tubular product injection mold.
Background
For the injection mold of the back-off injection product in the pipe, the current common demolding method adopts a forced demolding mode, the forced demolding mode is simpler, more convenient and lower in cost, but the material of the injection product is required to be a material with better toughness, and when the toughness of the material of the injection product is poor or the back-off is deeper, the forced demolding mode is adopted to easily cause the strain of the product or the size of the product to be difficult to control.
The applicant found that the prior art has at least the following technical problems: the in-pipe back-off injection molding product is subjected to demoulding in a forced demoulding mode, so that the product is easy to be damaged by pulling.
Disclosure of Invention
The utility model aims to provide a die core-pulling structure and a tubular product injection die, which are used for solving the technical problem that in the prior art, a product is easy to be pulled due to the fact that an in-tube back-off injection product is demoulded in a forced demoulding way 。 The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a mould core-pulling structure, which comprises a mould core arranged in a mould cavity, wherein the end part of the mould core extends to the outer side of the mould cavity;
the mold core comprises a mold core body and a mold core insert, wherein the mold core body is in transmission connection with the mold core insert, a core pulling mechanism is connected to the end part of the mold core body, which is positioned outside the mold cavity, the core pulling mechanism drives the mold core body to move, and the mold core body drives the mold core insert to move towards the center direction of the mold core body.
As a further improvement of the utility model, a sliding groove is arranged on the die core main body, a sliding block is arranged on the die core insert, the sliding block is matched with the sliding groove, and the die core main body and the die core insert are in transmission connection with the sliding groove through the sliding block.
As a further improvement of the utility model, the sliding groove is a dovetail groove.
As a further development of the utility model, a plurality of the core inserts are provided, the plurality of core inserts being distributed uniformly over the core body.
As a further improvement of the utility model, the mould core body is arranged on the first side of the first fixing seat, the mould core insert is arranged on the first side of the second fixing seat, and the mould core body passes through the second fixing seat to be in sliding connection with the mould core insert;
the core pulling mechanism is connected with the first fixing seat and drives the first fixing seat to move in a mode of approaching to or separating from the die cavity.
As a further improvement of the utility model, the transmission structure comprises a connecting bolt, a positioning hole is arranged on the first fixing seat, the length of the connecting bolt is longer than the depth of the positioning hole, and the connecting bolt passes through the positioning hole to be connected with the second fixing seat.
As a further improvement of the utility model, a spring is also sleeved on the connecting bolt, and the length of the spring is smaller than the difference value between the length of the connecting bolt and the depth of the positioning hole.
As a further improvement of the utility model, a positioning pin is also arranged between the first fixing seat and the second fixing seat.
As a further improvement of the utility model, the core pulling mechanism comprises a supporting seat and a driving structure, wherein the first fixing seat and the second fixing seat are arranged on the supporting seat in a sliding manner, the driving structure is connected with the first fixing seat, and the driving structure drives the first fixing seat and the second fixing seat to reciprocate on the supporting seat.
An injection mold for tubular products comprises the mold core-pulling structure.
The beneficial effects of the utility model are as follows: the mold core-pulling structure and the tubular product injection mold provided by the utility model have the advantages that the mold core comprises the mold core main body and the mold core insert, the core-pulling mechanism is connected with the mold core main body and is used for driving the mold core main body to move, the mold core main body is in transmission connection with the mold core insert, and the mold core main body moves to drive the mold core insert to move towards the center direction of the mold core main body, so that the mold core insert is separated from an injection product, the mold core insert is convenient to withdraw, and the problem of product strain caused by withdrawal can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a schematic view of a portion of the structure of the present utility model;
FIG. 3 is a schematic view of the structure of the mold core of the present utility model;
FIG. 4 is a schematic structural view of a first fixing base of the present utility model;
FIG. 5 is a cross-sectional view (one) of a first fixing base and a second fixing base according to an embodiment of the present utility model;
fig. 6 is a cross-sectional view (two) of a first fixing base and a second fixing base according to another embodiment of the present utility model.
1, a mold cavity; 2. a mold core; 3. a core pulling mechanism; 20. a spring; 21. a mold core body; 22. a core insert; 23. a first fixing seat; 24. the second fixing seat; 25. a sliding groove; 26. a sliding block; 27. a connecting bolt; 28. positioning holes; 29. a positioning pin; 31. a support base; 32. and a driving structure.
Detailed Description
The following description of the utility model and the differences between the utility model and the prior art will be understood with reference to the accompanying figures 1-6 and the text. The following describes the utility model in further detail, including preferred embodiments, by way of the accompanying drawings and by way of examples of some alternative embodiments of the utility model. It should be noted that: any technical feature and any technical solution in this embodiment are one or several of various optional technical features or optional technical solutions, and in order to describe brevity, all of the optional technical features and the optional technical solutions of the present utility model cannot be exhausted in this document, and it is inconvenient for an implementation of each technical feature to emphasize that it is one of various optional implementations, so those skilled in the art should know: any one of the technical means provided by the utility model can be replaced or any two or more of the technical means or technical features provided by the utility model can be mutually combined to obtain a new technical scheme. Any technical features and any technical solutions in the present embodiment do not limit the protection scope of the present utility model, and the protection scope of the present utility model should include any alternative technical solution that can be conceived by a person skilled in the art without performing creative efforts, and a new technical solution obtained by combining any two or more technical means or technical features provided by the present utility model with each other by a person skilled in the art.
In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., refer to an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
The utility model provides a mould core-pulling structure capable of rapidly demoulding and guaranteeing demoulding quality and a tubular product injection mould.
The technical scheme provided by the utility model is described in more detail below with reference to fig. 1 to 6.
The utility model provides a core pulling structure of a mold, which comprises a mold core arranged in a mold cavity, wherein the end part of the mold core extends to the outer side of the mold cavity;
the mold core comprises a mold core body and a mold core insert, wherein the mold core body is in transmission connection with the mold core insert, a core pulling mechanism is connected to the end part of the mold core body, which is positioned outside the mold cavity, the core pulling mechanism drives the mold core body to move, and the mold core body drives the mold core insert to move towards the center direction of the mold core body.
The core-pulling mechanism is connected with the core main body and is used for driving the core main body to move, the core main body is in transmission connection with the core insert, and the core main body moves to drive the core insert to move towards the center of the core main body, so that the core insert is separated from an injection molding product, the core insert is convenient to pull away, and the problem of product strain caused by pulling away can be avoided.
As a further improvement of the utility model, a sliding groove is arranged on the die core main body, a sliding block is arranged on the die core insert, the sliding block is matched with the sliding groove, and the die core main body and the die core insert are in transmission connection with the sliding groove through the sliding block.
As a further improvement of the utility model, the sliding groove is a dovetail groove.
In the further improvement, the die core main body and the die core insert are matched with each other through the sliding block to realize transmission connection, the sliding groove is a dovetail groove, when the die core main body is driven by the core pulling mechanism to move, the sliding groove on the die core main body slides along the sliding block on the die core insert, and the die core insert moves towards the center direction of the die core main body in the process of separating the die core main body, so that the die core insert is separated from an injection molding product.
As a further development of the utility model, a plurality of the core inserts are provided, the plurality of core inserts being distributed uniformly over the core body.
As a further improvement of the utility model, the mould core body is arranged on the first side of the first fixing seat, the mould core insert is arranged on the first side of the second fixing seat, and the mould core body passes through the second fixing seat to be in sliding connection with the mould core insert;
the core pulling mechanism is connected with the first fixing seat and drives the first fixing seat to move in a mode of approaching to or separating from the die cavity.
In this further improvement, through setting up first fixing base and second fixing base, mold core main part and mold core mold insert set up respectively on first fixing base and second fixing base, mold core main part passes second fixing base and mold core mold insert sliding connection, forms the mold core, and the mold core setting is in the die cavity, and core pulling mechanism is connected with first fixing base, drives first fixing base and removes, and first fixing base is connected with the transmission of second fixing base to realize core pulling mechanism can drive first fixing base and second fixing base simultaneously and remove.
As a further improvement of the utility model, the transmission structure comprises a connecting bolt, a positioning hole is arranged on the first fixing seat, the length of the connecting bolt is longer than the depth of the positioning hole, and the connecting bolt passes through the positioning hole to be connected with the second fixing seat.
In this further improvement, the transmission structure includes connecting bolt be provided with the locating hole on the first fixing base, connecting bolt's length is longer than the degree of depth of locating hole for after the first fixing base removes certain distance, the second fixing base just can follow first fixing base and remove. Thereby ensure that the mold core mold insert is removed with the injection molding product after the mold core mold insert is separated, and the mold release process is accomplished.
As a further improvement of the utility model, a spring is also sleeved on the connecting bolt, and the length of the spring is smaller than the difference value between the length of the connecting bolt and the depth of the positioning hole.
Specifically, the depth difference between the length of the connecting bolt and the depth of the positioning hole is 39mm, and the length of the spring is less than 39mm.
Through setting up the spring, can avoid first fixing base and second fixing base rigid transmission, improve the connection effect.
As a further improvement of the utility model, a positioning pin is also arranged between the first fixing seat and the second fixing seat. The locating pin can further ensure the transmission of the second fixing seat and the first fixing seat.
As a further improvement of the utility model, the core pulling mechanism comprises a supporting seat and a driving structure, wherein the first fixing seat and the second fixing seat are arranged on the supporting seat in a sliding manner, the driving structure is connected with the first fixing seat, and the driving structure drives the first fixing seat and the second fixing seat to reciprocate on the supporting seat.
In this further improvement, core pulling mechanism includes supporting seat and drive structure, and drive structure can adopt motor drive, and first fixing base and second fixing base slide and set up on the supporting seat, and drive structure is used for driving first fixing base and slides on the supporting seat, and the second fixing base slides on the supporting seat under the drive of first fixing base.
An injection mold for tubular products comprises the mold core-pulling structure.
Example 1:
the utility model provides a core-pulling structure of a mold, which comprises a mold core 2 arranged in a mold cavity 1, wherein the end part of the mold core 2 extends to the outer side of the mold cavity 1, a core-pulling mechanism 3 is connected to the end part of the mold core 2, and the core-pulling mechanism 3 is used for driving the mold core 2 to be pulled out from the mold cavity 1.
The mold core 2 comprises a mold core main body 21 and a mold core insert 22, wherein a sliding block 26 is arranged on the mold core insert 22, a sliding groove 25 is arranged on the mold core main body 21, the sliding groove 25 is a dovetail groove, the sliding block 26 is matched with the sliding groove 25, and the mold core main body 21 and the mold core insert 22 are in sliding connection with the sliding groove 25 through the sliding block 26.
Further, the core main body 21 is disposed on a first side of the first fixing seat 23, the core insert 22 is disposed on a first side of the second fixing seat 24, the core main body 21 passes through the second fixing seat 24 to be slidably connected with the core insert 22, the core pulling mechanism 3 is connected to the first fixing seat 23, and the core pulling mechanism 3 drives the first fixing seat 23 to move in a manner of approaching or separating from the mold cavity 1.
The core pulling mechanism 3 comprises a supporting seat 31 and a driving structure 32, the first fixing seat 23 and the second fixing seat 24 are slidably arranged on the supporting seat 31, the driving structure 32 is connected with the first fixing seat 23, and the driving structure 32 drives the first fixing seat 23 and the second fixing seat 24 to reciprocate on the supporting seat 31. It should be noted that, the first fixing seat 23 and the second fixing seat 24 are matched with each other through a guide rail and a sliding block to realize sliding, and a horizontal reciprocating mechanism in the prior art may also be used to realize reciprocating movement.
During demolding, the core pulling mechanism 3 drives the first fixing seat 23 to move towards the direction away from the mold cavity 1, and the first fixing seat 23 drives the mold core main body 21 to move, so that the mold core insert 22 is driven to move towards the center direction of the mold core main body 21, the mold core insert 22 is separated from an injection molding product, and the mold core insert 22 can be taken out after being separated from the injection molding product, so that the processing accuracy of the injection molding product can be ensured, and the product accuracy can be ensured while the damage of the product is avoided.
Further, a transmission structure is disposed between the second fixing base 24 and the first fixing base 23, the transmission structure includes a connecting bolt 27, a positioning hole 28 is disposed on the first fixing base 23, the length of the connecting bolt 27 is longer than the depth of the positioning hole 28, and the connecting bolt 27 passes through the positioning hole 28 to be connected with the second fixing base 24.
During demolding, the core pulling mechanism 3 drives the first fixing seat 23 to move in a direction away from the mold cavity 1, and when the first fixing seat 23 moves to the condition that the nuts of the connecting bolts 27 are in contact with the positioning holes 28, the first fixing seat 23 drives the second fixing seat 24 to move, so that the mold core 2 is pulled out from the mold cavity 1, and the demolding process is completed.
Through setting up transmission structure, second fixing base 24 can drive down and remove at first fixing base 23, sets up transmission structure into connecting bolt 27 be provided with locating hole 28 on the first fixing base 23, connecting bolt 27's length is longer than the degree of depth of locating hole 28 for after first fixing base 23 removes certain distance, second fixing base 24 just can follow first fixing base 23 and remove. Thereby ensuring that the mold core insert 22 moves with the second fixing base 24 after the mold core insert 22 is separated from the injection product, and completing the demolding process.
In order to further ensure the transmission of the second fixing base 24 and the first fixing base 23, a positioning pin 29 is provided between the first fixing base 23 and the second fixing base 24.
In order to avoid rigid transmission between the second fixing base 24 and the first fixing base 23, a spring 20 is further sleeved on the connecting bolt 27, and the length of the spring 20 is shorter than that of the connecting bolt 27.
Specifically, the difference between the length of the connecting bolt 27 and the depth of the positioning hole 28 is 39mm, and the length of the spring is less than 39mm.
An injection mold for tubular products comprises the mold core-pulling structure.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. The die core-pulling structure is characterized by comprising a die core arranged in a die cavity, wherein the end part of the die core extends to the outer side of the die cavity;
the mold core comprises a mold core body and a mold core insert, wherein the mold core body is in transmission connection with the mold core insert, a core pulling mechanism is connected to the end part of the mold core body, which is positioned outside the mold cavity, the core pulling mechanism drives the mold core body to move, and the mold core body drives the mold core insert to move towards the center direction of the mold core body.
2. The core-pulling structure according to claim 1, wherein a sliding groove is provided on the core body, a sliding block is provided on the core insert, the sliding block is matched with the sliding groove, and the core body and the core insert are in transmission connection with the sliding groove through the sliding block.
3. The mold core-pulling structure according to claim 2, wherein the sliding groove is a dovetail groove.
4. The mold core-pulling structure according to claim 1, wherein a plurality of the core inserts are provided, and a plurality of the core inserts are uniformly distributed on the core body.
5. The core-pulling structure according to any one of claims 1 to 4, wherein the core body is disposed on a first side of a first holder, the core insert is disposed on a first side of a second holder, and the core body is slidably connected to the core insert through the second holder;
the core pulling mechanism is connected with the first fixing seat and drives the first fixing seat to move in a mode of approaching to or separating from the die cavity.
6. The mold core pulling structure according to claim 5, wherein the transmission structure comprises a connecting bolt, a positioning hole is formed in the first fixing seat, the length of the connecting bolt is longer than the depth of the positioning hole, and the connecting bolt penetrates through the positioning hole to be connected with the second fixing seat.
7. The mold core pulling structure according to claim 6, wherein a spring is further sleeved on the connecting bolt, and the length of the spring is smaller than the difference between the length of the connecting bolt and the depth of the positioning hole.
8. The mold core pulling structure according to claim 6, wherein a positioning pin is further provided between the first fixing base and the second fixing base.
9. The core-pulling structure according to claim 5, wherein the core-pulling mechanism comprises a supporting seat and a driving structure, the first fixing seat and the second fixing seat are slidably arranged on the supporting seat, the driving structure is connected with the first fixing seat, and the driving structure drives the first fixing seat and the second fixing seat to reciprocate on the supporting seat.
10. Injection mould for tubular products, characterized in that it comprises a mould core-pulling structure according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223601460.9U CN218928527U (en) | 2022-12-30 | 2022-12-30 | Mould core-pulling structure and tubular product injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223601460.9U CN218928527U (en) | 2022-12-30 | 2022-12-30 | Mould core-pulling structure and tubular product injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN218928527U true CN218928527U (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223601460.9U Active CN218928527U (en) | 2022-12-30 | 2022-12-30 | Mould core-pulling structure and tubular product injection mold |
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| Country | Link |
|---|---|
| CN (1) | CN218928527U (en) |
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- 2022-12-30 CN CN202223601460.9U patent/CN218928527U/en active Active
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