CN215619750U - Injection mold thimble mechanism and injection mold applying same - Google Patents
Injection mold thimble mechanism and injection mold applying same Download PDFInfo
- Publication number
- CN215619750U CN215619750U CN202121980406.2U CN202121980406U CN215619750U CN 215619750 U CN215619750 U CN 215619750U CN 202121980406 U CN202121980406 U CN 202121980406U CN 215619750 U CN215619750 U CN 215619750U
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- injection mold
- thimble
- ejector pin
- block
- ball
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- 238000002347 injection Methods 0.000 title claims abstract description 34
- 239000007924 injection Substances 0.000 title claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of injection molds, and discloses an injection mold thimble mechanism and an injection mold applying the same, which comprise a base, a lower mold and a mold cavity, wherein the lower mold is positioned above the base, the mold cavity is positioned in the lower mold, a push block is arranged in the base, an installation block is arranged at the bottom of the lower mold, a thimble is arranged at the top of the push block, a limit structure is arranged between the thimble and the installation block, the limit structure comprises a ball guide rail, a ball groove and balls, and a plane support structure is arranged below the push block. Thereby effectively prolonging the service life of the thimble.
Description
Technical Field
The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold thimble mechanism and an injection mold using the same.
Background
When a product needing injection molding is produced, an injection mold is needed, injection molding liquid is introduced into the injection mold, the injection mold is opened after the injection molding liquid is cooled, and the molded injection product is ejected out through an ejector pin in the injection mold.
In the prior art, the ejector pin of the injection mold is easy to wear due to friction with the inner wall of the mold for a long time, so that the service life of the ejector pin is shortened, and meanwhile, the ejector pin is not high in stability when moving upwards, so that the ejector pin deviates.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ejector pin mechanism of an injection mold and the injection mold using the same, and aims to solve the problems that an existing ejector pin is easy to wear and low in stability.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an injection mold thimble mechanism, includes base, bed die and die cavity, the bed die is located the top of base, the die cavity is located the inside of bed die, the inside of base is provided with the ejector pad, the installation piece is installed to the bottom of bed die, the thimble is installed at the top of ejector pad, be provided with limit structure between thimble and the installation piece, limit structure includes ball guide, ball groove and ball.
Preferably, a plane supporting structure is arranged below the pushing block, and the plane supporting structure comprises a sliding groove and a flat block.
Preferably, the ball groove is located inside the mounting block, the ball is located inside the ball groove, and the ball guide is fixed to the outer surface of the thimble.
Preferably, the ejector pin is in clearance fit with the mounting block, and the ball is in rolling connection with the ball guide rail.
Preferably, a spring is connected between the push block and the mounting block and is positioned on one side of the thimble.
Preferably, the sliding groove is located on the inner wall of the base, and the flat block is located between the pushing block and the base.
Preferably, the sliding blocks are installed on two sides of the flat block, the connecting rod is installed at the bottom of the flat block, and the flat block is connected with the sliding groove in a sliding mode through the sliding blocks.
The injection mold with the ejector pin mechanism comprises the injection mold and an upper mold, wherein the upper mold is located above a lower mold, and the upper mold is matched with a mold cavity.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the ejector pin, the limiting structure is arranged, and the ejector pin can smoothly slide up and down in the mounting block through the movement of the balls in the limiting structure on the ball guide rail on the surface of the ejector pin, so that compared with the mode that the ejector pin directly slides in contact with the interior of a mold, the mode can effectively reduce the friction between the ejector pin and the mold, and the service life of the ejector pin is effectively prolonged.
(2) The push block is pushed upwards by the flat block in the plane supporting structure, and meanwhile, the flat block stably slides in the sliding groove, so that the flat block can be ensured to be in close contact with the bottom of the push block, and the push block can be ensured to stably and vertically move.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural view of the thimble according to the present invention;
in the figure: 1. a base; 2. a lower die; 3. a mold cavity; 4. a thimble; 5. a ball guide; 6. a spring; 7. a push block; 8. a chute; 9. flattening; 10. a connecting rod; 11. a ball groove; 12. a ball bearing; 13. an upper die; 14. a limiting structure; 15. a planar support structure; 16. a slider; 17. and (7) installing the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides an injection mold thimble mechanism, which comprises a base 1, bed die 2 and die cavity 3, bed die 2 is located the top of base 1, die cavity 3 is located the inside of bed die 2, the inside of base 1 is provided with ejector pad 7, ejector pad 7 can promote thimble 4 and stably move towards in the die cavity 3, installation piece 17 is installed to the bottom of bed die 2, thimble 4 is installed at ejector pad 7's top, be provided with limit structure 14 between thimble 4 and the installation piece 17, limit structure 14 can guarantee that thimble 4 can stably move, limit structure 14 includes ball guide 5, ball groove 11 and ball 12.
Further, a plane supporting structure 15 is arranged below the pushing block 7, the plane supporting structure 15 can increase the stability of the vertical movement of the pushing block 7, and the plane supporting structure 15 comprises a sliding groove 8 and a flat block 9.
Furthermore, the ball groove 11 is located inside the mounting block 17, the ball 12 is located inside the ball groove 11, and the ball guide 5 is fixed on the outer surface of the thimble 4, so that the friction force applied to the thimble 4 can be effectively reduced through the ball 12, and the service life of the thimble 4 can be prolonged.
Specifically, the ejector pin 4 is in clearance fit with the mounting block 17, and the ball 12 is in rolling connection with the ball guide rail 5, so that the ejector pin 4 can be ensured to move smoothly in the mounting block 17.
It is worth to say that, a spring 6 is connected between the pushing block 7 and the mounting block 17, the spring 6 is located on one side of the thimble 4, and the pushing block 7 can be tightly attached to the flat block 9 through the spring 6, so that the pushing block 7 can be stably and vertically moved.
Further, the spout 8 is located the inner wall of base 1, and flat block 9 is located between ejector pad 7 and the base 1, and the spout 8 can guarantee that flat block 9 can stably move in base 1.
Furthermore, the sliders 16 are mounted on two sides of the flat block 9, the connecting rod 10 is mounted at the bottom of the flat block 9, and the flat block 9 is connected with the sliding groove 8 in a sliding mode through the sliders 16, so that the flat block 9 can stably lift the push block 7.
The injection mold with the ejector pin mechanism comprises the injection mold and an upper mold, wherein the upper mold is located above a lower mold and matched with a mold cavity.
The working principle and the using process of the utility model are as follows: when the ejector pin pushing device is used, injection molding liquid is injected into the mold cavity 3, after the injection molding liquid is cooled, the flat block 9 is pushed by the connecting rod 10 to move towards the push block 7, the push block 7 pushes the ejector pin 4 to move upwards, the ball guide rail 5 on the surface of the ejector pin 4 slides on the surface of the ball 12, and therefore an injection molded product is pushed out, the service life of the ejector pin 4 can be effectively prolonged, friction between the ejector pin 4 and the inner part of the lower mold 2 is reduced, after the product is pushed out, the spring 6 pushes the push block 7 to return to the original position, the ejector pin 4 returns to the original position, and when the push block 7 is in contact with the flat block 9, the push block 7 can be effectively guaranteed to move vertically, and therefore the ejector pin 4 can horizontally push the product out.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an injection mold thimble mechanism, includes base (1), bed die (2) and die cavity (3), bed die (2) are located the top of base (1), die cavity (3) are located the inside of bed die (2), its characterized in that: the inside of base (1) is provided with ejector pad (7), installation piece (17) are installed to the bottom of bed die (2), thimble (4) are installed at the top of ejector pad (7), be provided with limit structure (14) between thimble (4) and installation piece (17), limit structure (14) include ball guide (5), ball groove (11) and ball (12).
2. The ejector pin mechanism of the injection mold according to claim 1, wherein: a plane supporting structure (15) is arranged below the push block (7), and the plane supporting structure (15) comprises a sliding groove (8) and a flat block (9).
3. The ejector pin mechanism of the injection mold according to claim 1, wherein: the ball groove (11) is located inside the mounting block (17), the balls (12) are located inside the ball groove (11), and the ball guide rail (5) is fixed on the outer surface of the thimble (4).
4. The ejector pin mechanism of the injection mold according to claim 1, wherein: the thimble (4) is in clearance fit with the mounting block (17), and the ball (12) is in rolling connection with the ball guide rail (5).
5. The ejector pin mechanism of the injection mold according to claim 1, wherein: a spring (6) is connected between the push block (7) and the mounting block (17), and the spring (6) is located on one side of the ejector pin (4).
6. The ejector pin mechanism of the injection mold according to claim 2, wherein: the sliding groove (8) is located on the inner wall of the base (1), and the flat block (9) is located between the push block (7) and the base (1).
7. The ejector pin mechanism of the injection mold according to claim 2, wherein: slider (16) are all installed to the both sides of flat piece (9), connecting rod (10) are installed to the bottom of flat piece (9), flat piece (9) are through slider (16) and spout (8) sliding connection.
8. The utility model provides an use injection mold of thimble mechanism which characterized in that: comprising an ejector pin mechanism of an injection mold according to any one of claims 1 to 7, and further comprising an upper mold (13), wherein the upper mold (13) is positioned above the lower mold (2), and the upper mold (13) is matched with the mold cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121980406.2U CN215619750U (en) | 2021-08-23 | 2021-08-23 | Injection mold thimble mechanism and injection mold applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121980406.2U CN215619750U (en) | 2021-08-23 | 2021-08-23 | Injection mold thimble mechanism and injection mold applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215619750U true CN215619750U (en) | 2022-01-25 |
Family
ID=79900519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121980406.2U Active CN215619750U (en) | 2021-08-23 | 2021-08-23 | Injection mold thimble mechanism and injection mold applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215619750U (en) |
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2021
- 2021-08-23 CN CN202121980406.2U patent/CN215619750U/en active Active
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