CN220482455U - Injection molding rubber coating mould mouth of a river thimble back-off structure - Google Patents
Injection molding rubber coating mould mouth of a river thimble back-off structure Download PDFInfo
- Publication number
- CN220482455U CN220482455U CN202321082867.7U CN202321082867U CN220482455U CN 220482455 U CN220482455 U CN 220482455U CN 202321082867 U CN202321082867 U CN 202321082867U CN 220482455 U CN220482455 U CN 220482455U
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- China
- Prior art keywords
- ejector pin
- thimble
- injection molding
- piece
- pin piece
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 24
- 238000010073 coating (rubber) Methods 0.000 title claims description 7
- 238000005538 encapsulation Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 239000000243 solution Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a water gap thimble back-off structure of an injection molding encapsulation mold, which comprises the following components: the injection molding die comprises a first ejector pin piece, a second ejector pin piece and a third ejector pin piece, wherein the first ejector pin piece, the second ejector pin piece and the third ejector pin piece are sequentially arranged along a straight line on a moving die of the injection molding die, the first ejector pin piece and the third ejector pin piece are symmetrically arranged at two ends of a water gap stub bar, a first back-off part which is obliquely arranged is arranged at the top of the first ejector pin piece, the first back-off part is of a columnar structure, a second back-off part which is obliquely arranged is arranged at the top of the third ejector pin piece, a protruding part is arranged at the top of the second ejector pin piece, and the protruding part is of a round table structure. Compared with the prior art, the utility model improves the back-off structure of the side gate thimble of the die moving die, and is convenient for demoulding the gate stub bar.
Description
Technical Field
The utility model relates to the technical field of injection molding, in particular to a water gap thimble back-off structure of an injection molding encapsulation mold.
Background
The injection mold is a tool for producing plastic products, and during injection molding, a heated and melted material is injected into a mold cavity under high pressure, and a formed product is obtained after cooling and solidification.
The large shell rubber coating mould adopts a submarine gate, and because the structure of the gate position similar to a ox horn is submarine at the fixed mould side of the mould, a gate thimble (a pull rod) is required to be arranged in order to prevent a gate stub bar from being adhered at the fixed mould side of the mould when the mould is opened. When the mold is opened, the water gap stub bar is pulled out from the side of the fixed mold of the mold under the action of the water gap thimble, and then the product and the water gap stub bar are pushed out of the mold together by the side pushing mechanism of the movable mold.
In the existing mold, a plurality of nozzle ejector pins are adopted, the nozzle ejector pins have the same back-off shape and all adopt inverted truncated cone-shaped structures, and although the nozzle stub bar can be effectively pulled out from the side of the fixed mold of the mold, the nozzle stub bar is difficult to demould (separate from the movable mold)
Disclosure of Invention
The utility model aims at: the injection molding rubber coating mould mouth of a river thimble back-off structure is provided, the back-off structure of mould movable mould side mouth of a river thimble is improved, the drawing of patterns of mouth of a river stub bar of being convenient for.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: an injection molding rubber coating mould mouth of a river thimble back-off material structure includes: the injection molding die comprises a first ejector pin piece, a second ejector pin piece and a third ejector pin piece, wherein the first ejector pin piece, the second ejector pin piece and the third ejector pin piece are sequentially arranged along a straight line on a moving die of the injection molding die, the first ejector pin piece and the third ejector pin piece are symmetrically arranged at two ends of a water gap stub bar, a first back-off part which is obliquely arranged is arranged at the top of the first ejector pin piece, the first back-off part is of a columnar structure, a second back-off part which is obliquely arranged is arranged at the top of the third ejector pin piece, a protruding part is arranged at the top of the second ejector pin piece, and the protruding part is of a round table structure.
As a further description of the above technical solution:
the first back-off part is detachably arranged at the top of the first thimble piece.
As a further description of the above technical solution:
the bottom of the first back-off part is provided with a first threaded rod which is in threaded connection with the top of the first thimble piece.
As a further description of the above technical solution:
the second back-off part is detachably arranged at the top of the third thimble piece.
As a further description of the above technical solution:
the bottom of the second back-off part is provided with a second threaded rod.
As a further description of the above technical solution:
the first thimble piece and the third thimble piece are symmetrically arranged on two sides of the second thimble piece.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the utility model, the original three water gap ejector pins on the movable mould of the injection mould only retain the inverted structures at the two ends of the water gap stub bar, the top of the second ejector pin piece in the middle is of a truncated cone-shaped structure with the upper part narrow and the lower part wide, and simultaneously the top of the first ejector pin piece and the top of the third ejector pin piece adopt inverted parts which are obliquely arranged, so that the water gap stub bar can be effectively pulled out from the fixed mould side of the mould, and the demolding of the water gap stub bar is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the prior art nozzle spike and nozzle stub bar mating.
Fig. 2 is a schematic diagram of a gate ejector back-off structure of an injection molding encapsulation mold.
Fig. 3 is a schematic diagram II of a gate ejector pin back-off structure of an injection molding encapsulation mold.
Fig. 4 is a schematic structural view of a first ejector pin in an ejector pin back-off structure of a water gap of an injection molding encapsulation mold.
Legend description:
1. a first thimble member; 11. a first back-off portion; 111. a first threaded rod; 2. a second thimble member; 21. a boss; 3. a third thimble member; 31. a second back-off part; 4. an injection mold moving die; 5. and a water gap stub bar.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: an injection molding rubber coating mould mouth of a river thimble back-off material structure includes: the injection molding die comprises a first ejector pin 1, a second ejector pin 2 and a third ejector pin 3, wherein the first ejector pin 1, the second ejector pin 2 and the third ejector pin 3 which are sequentially arranged along a straight line are arranged on an injection molding die moving die 4, the first ejector pin 1 and the third ejector pin 3 which are symmetrically arranged are arranged at two ends of a water gap stub bar 5, a first back-off part 11 which is obliquely arranged is arranged at the top of the first ejector pin 1, the first back-off part 11 is of a columnar structure, a second back-off part 31 which is obliquely arranged is arranged at the top of the third ejector pin 3, a protruding part 21 is arranged at the top of the second ejector pin 2, and the protruding part 21 is of a round table-shaped structure.
The first back-off part 11 is detachably mounted at the top of the first thimble piece 1, a first threaded rod 111 is arranged at the bottom of the first back-off part 11, the first threaded rod 111 is in threaded connection with the top of the first thimble piece 1, the second back-off part 31 is detachably mounted at the top of the third thimble piece 3, and a second threaded rod is arranged at the bottom of the second back-off part 31. The first back-off part 11 can be detachably arranged, so that the first back-off part 11 with different inclination degrees and sizes can be flexibly replaced according to the pulling effect of the water gap stub bar from the fixed die side of the die and the subsequent separating effect with the movable die, and the demolding effect of the water gap stub bar is ensured. The third thimble member 3 is the same as
The first ejector pin piece 1 and the third ejector pin piece 3 are symmetrically arranged on two sides of the second ejector pin piece 2, and the first ejector pin piece 1, the second ejector pin piece 2 and the third ejector pin piece 3 are uniformly distributed, so that smooth stripping of a water gap stub bar is ensured.
Working principle: original three mouth of a river thimble on injection mold movable mould 4 only keeps the back-off structure at mouth of a river stub bar 5 both ends (only first thimble spare 1, the design of back-off is kept to third thimble spare 3 promptly), and second thimble spare 2 top in the centre is narrow down wide round platform column structure, and simultaneously first thimble spare 1 top, the back-off portion that 3 tops of third thimble spare adopt the slope to arrange, on the one hand can effectually pull out mouth of a river stub bar from mould cover half side, on the other hand is convenient for the drawing of patterns (namely mouth of a river stub bar and movable mould separation) of mouth of a river stub bar.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an injection molding rubber coating mould mouth of a river thimble back-off material structure which characterized in that includes: first thimble piece (1), second thimble piece (2) and third thimble piece (3), be provided with on injection mold movable mould (4) along sharp arranging in proper order first thimble piece (1) second thimble piece (2) with third thimble piece (3), mouth of a river stub bar (5) both ends are provided with symmetrical arrangement first thimble piece (1) third thimble piece (3), first thimble piece (1) top is provided with first back-off portion (11) that the slope was arranged, first back-off portion (11) are columnar structure, third thimble piece (3) top is provided with second back-off portion (31) that the slope was arranged, second thimble piece (2) top is provided with bellying (21), bellying (21) are round platform column structure.
2. The injection molding encapsulation mold nozzle ejector pin back-off structure according to claim 1, wherein the first back-off part (11) is detachably mounted on the top of the first ejector pin member (1).
3. The injection molding encapsulation mold nozzle thimble back-off structure according to claim 2, wherein a first threaded rod (111) is arranged at the bottom of the first back-off portion (11), and the first threaded rod (111) is in threaded connection with the top of the first thimble member (1).
4. The injection molding encapsulation mold nozzle ejector pin back-off structure according to claim 1, wherein the second back-off portion (31) is detachably mounted on the top of the third ejector pin (3).
5. The injection molding and encapsulating mold nozzle thimble back-off structure according to claim 4, wherein a second threaded rod is provided at the bottom of said second back-off portion (31).
6. The injection molding encapsulation mold nozzle ejector pin back-off structure according to claim 1, wherein the first ejector pin member (1) and the third ejector pin member (3) are symmetrically arranged at two sides of the second ejector pin member (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321082867.7U CN220482455U (en) | 2023-05-08 | 2023-05-08 | Injection molding rubber coating mould mouth of a river thimble back-off structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321082867.7U CN220482455U (en) | 2023-05-08 | 2023-05-08 | Injection molding rubber coating mould mouth of a river thimble back-off structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220482455U true CN220482455U (en) | 2024-02-13 |
Family
ID=89824800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321082867.7U Active CN220482455U (en) | 2023-05-08 | 2023-05-08 | Injection molding rubber coating mould mouth of a river thimble back-off structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220482455U (en) |
-
2023
- 2023-05-08 CN CN202321082867.7U patent/CN220482455U/en active Active
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