CN220864679U - Oblique ejection core-pulling mechanism of injection mold - Google Patents
Oblique ejection core-pulling mechanism of injection mold Download PDFInfo
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- CN220864679U CN220864679U CN202322681864.1U CN202322681864U CN220864679U CN 220864679 U CN220864679 U CN 220864679U CN 202322681864 U CN202322681864 U CN 202322681864U CN 220864679 U CN220864679 U CN 220864679U
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- 238000002347 injection Methods 0.000 title claims abstract description 15
- 239000007924 injection Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 27
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000005457 optimization Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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Abstract
The utility model relates to an oblique ejection core pulling mechanism of an injection mold, which comprises a movable mold, wherein the movable mold comprises a sliding block, the movable mold further comprises an oblique sliding block ejection, a movable cavity is formed in the sliding block, the oblique sliding block ejection is obliquely arranged in the movable cavity and can move in the movable cavity, one end of the oblique sliding block ejection is exposed out of the movable cavity and is provided with a forming block, a limiting groove is formed in the oblique sliding block ejection, a limiting rod is arranged in the sliding block, the bottom of the limiting rod is positioned in the limiting groove, and in the process of moving core pulling of the sliding block, the limiting rod moves in the limiting groove to enable the forming block to move core pulling along a direction different from the moving direction of the sliding block. Compared with the prior art, the utility model realizes that the core pulling direction of the oblique ejection of the sliding block is different from the core pulling direction of the sliding block through the cooperation of the limiting rod and the limiting groove, completes the core pulling process of the back-off at the forming block, realizes the core pulling of the back-off with different mold stripping directions at two positions, avoids the back-off from sticking the sliding block, avoids the product from being stretched during mold opening, ensures the integrity and the attractiveness of the product after the core pulling, and ensures the yield.
Description
Technical Field
The utility model relates to an oblique ejection core-pulling mechanism of an injection mold, and belongs to the technical field of injection molds.
Background
In the prior art, a plurality of injection molding products are provided with inverted buckles, and the sliding block mechanism is mainly used for forming a product inverted buckle structure inconsistent with the main demolding direction of the mold. However, when the product is provided with the back-off which is different from the demolding direction of the sliding block and the main demolding direction of the mold, the conventional sliding block structure cannot realize molding demolding. If the problem that the product is reversely buckled and stuck to the sliding block easily exists during forced die opening, the product and the sliding block cannot be separated, and core pulling fails; and may cause the product to be stretched upon mold opening, resulting in product damage.
Disclosure of utility model
The utility model aims at overcoming the defects of the prior art and provides an oblique ejection core pulling mechanism of an injection mold for realizing the core pulling of two inverted buckles with different mold stripping directions.
The technical scheme adopted for realizing the purpose is as follows:
The utility model provides an injection mold's oblique top mechanism of loosing core, includes the movable mould, the movable mould still includes the slider oblique top, the system has the movable chamber in the slider, the oblique top slope of slider sets up the movable intracavity can be in the movable intracavity removes, the one end of slider oblique top exposes the movable chamber and be equipped with the shaping piece, the system has the spacing groove on the slider oblique top, install the gag lever post in the slider, the bottom of gag lever post is located in the spacing groove, the slider removes the in-process of loosing core, the gag lever post is in the spacing groove removes the messenger the shaping piece is followed be different from the direction that the slider removed removes and is loosed core.
As a further optimization of the above technical solution: the sliding block is internally provided with a moving cavity, the bottom of the sliding block inclined top is provided with a block groove, a block is fixed on the moving die, the end part of the block penetrates through the moving cavity and is positioned in the block groove, and the sliding block inclined top can move relative to the block.
As a further optimization of the above technical solution: the sliding block is provided with a spring pressing block, the spring pressing block is positioned at the end part of the movable cavity, a spring is arranged in the movable cavity, two ends of the spring are respectively contacted with the sliding block inclined top and the spring pressing block, and when the die is closed, the spring is in a compressed state.
As a further optimization of the above technical solution: the end system of slider oblique top has the spring groove, the one end of spring is located the spring inslot and with the tank bottom in spring groove contacts, still be equipped with the spring guide bar in the activity intracavity, the one end of spring guide bar passes the spring groove and install on the slider is pushed up to one side, the last briquetting through-hole that has of spring briquetting, the spring guide bar other end runs through the briquetting through-hole can be in the briquetting through-hole is internal to be removed, the spring cover is established on the spring guide bar.
As a further optimization of the above technical solution: and a sliding block limiting block is further fixed on the movable die, and when the sliding block is contacted with the sliding block limiting block, the sliding block stops moving.
As a further optimization of the above technical solution: the fixed die comprises a sliding block, and is characterized by further comprising a fixed die, wherein the fixed die comprises an inclined guide post, the inclined guide post obliquely penetrates through the sliding block, after injection molding is completed, the fixed die is separated from the movable die, and the inclined guide post drives the sliding block to move and loose core.
As a further optimization of the above technical solution: the fixed die is also fixedly provided with an inclined guide post pressing block, the inclined guide post is provided with a pressing block groove, and the end part of the inclined guide post pressing block is positioned in the pressing block groove and is contacted with the inclined guide post.
Compared with the prior art, the utility model realizes that the core pulling direction of the oblique ejection of the sliding block is different from the core pulling direction of the sliding block through the cooperation of the limiting rod and the limiting groove, completes the core pulling process of the back-off at the forming block, realizes the core pulling of the back-off with different mold stripping directions at two positions, avoids the back-off from sticking the sliding block, avoids the product from being stretched during mold opening, ensures the integrity and the beautiful appearance of the product after the core pulling, and ensures the yield; the spring force of the spring prevents the inclined top of the sliding block from moving and pulling the core along the core pulling direction of the sliding block, so that the inclined top of the sliding block moves strictly according to the core pulling direction of the sliding block, the success rate of core pulling is ensured, and the yield of products is ensured; the stop block contacts with the groove wall of the stop block groove to limit the inclined top of the sliding block in the resetting process; the stop block contacts with the groove wall of the movable cavity to limit the sliding block in the resetting and core pulling processes; the utility model has stable and simple structure, is easy to realize automatic production of the die, improves the die efficiency and reduces the production cost.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic sectional view of a mold clamping state in the present utility model.
FIG. 3 is a schematic cross-sectional view of the slide block in the utility model in a core pulling state.
FIG. 4 is a schematic cross-sectional view of a slider of the present utility model for completing core pulling.
Fig. 5 is a schematic perspective view of a part of the structure of the present utility model.
Detailed Description
The utility model is further described below with reference to the drawings and the detailed description. As shown in fig. 1-5, the oblique ejection core-pulling mechanism of the injection mold comprises a movable mold and a fixed mold, wherein the movable mold comprises a sliding block 1, a sliding block oblique ejector 2, a limiting rod 3, a spring 4, a spring guide rod 5 and a spring pressing block 6; the fixed die comprises an inclined guide post 9. The oblique guide post 9 is obliquely penetrated in the sliding block 1. The sliding block 1 is internally provided with a movable cavity 11, and the spring pressing block 6 is arranged on the sliding block 1 and positioned at the end part of the movable cavity 11. The slide block inclined top 2 is obliquely arranged in the movable cavity 11 and can move in the movable cavity 11. One end of the sliding block inclined roof 2 is exposed out of the movable cavity 11 and is provided with a forming block 24, and the other end of the sliding block inclined roof 2 is provided with a spring groove 21. The spring guide rod 5 is positioned in the movable cavity 11, and the spring 4 is sleeved on the spring guide rod 5. One end of the spring guide rod 5 passes through the spring groove 21 and is arranged on the inclined top 2 of the sliding block, a pressing block through hole 61 is formed on the spring pressing block 6, and the other end of the spring guide rod 5 passes through the pressing block through hole 61 and can move in the pressing block through hole 61. Both ends of the spring 4 are respectively contacted with the bottom of the spring groove 21 and the spring pressing block 6. The slide block inclined roof 2 is provided with a limit groove 22, the limit groove 22 inclines relative to the slide block 1, and the inclination degree of the limit groove 22 is the same as that of the slide block inclined roof 2. The slider 1 is internally provided with the limiting rod 3, the bottom of the limiting rod 3 is positioned in the limiting groove 22, and the limiting rod 3 can move in the limiting groove 22 to enable the forming block 24 to move and loose core along a direction different from the moving direction of the slider 1.
The technical scheme is as follows: the sliding block 1 is internally provided with a moving cavity 12, the bottom of the sliding block inclined roof 2 is provided with a stop block groove 23, a stop block 7 is fixed on the moving die, the end part of the stop block 7 passes through the moving cavity 12 and is positioned in the stop block groove 23, and the sliding block 1 and the sliding block inclined roof 2 can move relative to the stop block 7.
The technical scheme is as follows: and a sliding block limiting block 8 is also fixed on the movable mould.
The technical scheme is as follows: the fixed die is also fixed with an inclined guide post pressing block 92, the inclined guide post 9 is provided with a pressing block groove 91, and the end part of the inclined guide post pressing block 92 is positioned in the pressing block groove 91 and is contacted with the inclined guide post 9. The inclined guide post pressing block 92 presses the inclined guide post 9 to strengthen and position the inclined guide post 9, and prevents the inclined guide post 9 from shaking or falling out of the fixed die.
The working process of the utility model is as follows: when the die is in a die-closing state, the spring 4 is in a compressed state, as shown in fig. 2;
After injection molding is finished, the moving die and the fixed die are separated, the fixed die drives the inclined guide post 9 to move upwards, the inclined guide post 9 drives the sliding block 1 to move along the X direction for core pulling, the sliding block 1 drives the limiting rod 3 and the spring pressing block 6 to synchronously move, and the elasticity of the spring 4 is gradually released to enable the sliding block inclined top 2 not to move along the X direction; because the limiting rod 3 moves in the inclined limiting groove 22, the limiting rod 3 drives the forming block 24 at the end part of the sliding block inclined top 2 to generate Y-direction displacement, so that the forming block 24 starts to loose core;
When the limiting rod 3 moves to be in contact with the groove wall of the limiting groove 22, the sliding block inclined roof 2 completes core pulling, as shown in fig. 3, at the moment, the sliding block 1 drives the sliding block inclined roof 2 to synchronously move along the X direction through the limiting rod 3, and the demolding core pulling of the sliding block 1 and the sliding block inclined roof 2 is completed; as shown in fig. 4, when the slide block 1 moves to the contact of the stop block 7 and the groove wall of the moving cavity 12, or/and when the slide block 1 moves to the contact of the side surface of the slide block 1 and the slide block limiting block 8, the slide block 1 stops moving, and the slide block 1 finishes core pulling;
The die starts to be closed again, the fixed die drives the inclined guide post 9 to move downwards, the inclined guide post 9 enables the sliding block 1 to move along the-X direction to start to reset, the sliding block 1 drives the sliding block inclined roof 2 to move synchronously until the sliding block inclined roof 2 moves to the groove wall of the stop block groove 23 to be contacted with the stop block 7, and at the moment, the sliding block inclined roof 2 stops moving along the-X direction; the sliding block 1 continuously moves along the-X direction for resetting, the sliding block 1 drives the limiting rod 3 to move along the inclined limiting groove 22, so that the forming block 24 generates displacement along the-Y direction, and the forming block 24 is reset; when the slide block 1 moves to the position that the groove wall of the moving cavity 12 is contacted with the stop block 7, the slide block 1 stops moving, and at the moment, the slide block 1 and the slide block inclined top 2 are reset completely, as shown in fig. 2.
According to the utility model, the core pulling direction of the slide block inclined roof 2 is different from the core pulling direction of the slide block 1 through the cooperation of the limiting rod 3 and the limiting groove 22, so that the core pulling process of the back-off at the forming block 24 is completed, the core pulling of the back-off at two positions with different mold stripping directions is realized, the back-off is prevented from sticking the slide block, the product is prevented from being stretched during mold opening, the product after core pulling is complete and attractive, and the yield is ensured; the elastic force of the spring 4 prevents the sliding block inclined roof 2 from moving and pulling the core along the core pulling direction of the sliding block 1 along with the sliding block 1, so that the sliding block inclined roof 2 moves strictly according to the core pulling direction, the success rate of core pulling is ensured, and the product yield is ensured; the stop 7 contacts with the wall of the stop groove 23 to limit the sliding block inclined roof 2 in the resetting process; the stop block 7 contacts with the groove wall of the movable cavity 12 to limit the sliding block 1 in the resetting and core pulling processes; the utility model has stable and simple structure, is easy to realize automatic production of the die, improves the die efficiency and reduces the production cost.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical schemes which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the technical personnel in the field according to the conception of the utility model are within the protection scope of the utility model.
Claims (7)
1. The utility model provides an injection mold's oblique top mechanism of loosing core, includes the movable mould, the movable mould includes slider (1), its characterized in that the movable mould still includes slider oblique top (2), system has movable chamber (11) in slider (1), slider oblique top (2) slope sets up in movable chamber (11) and can be in move in movable chamber (11), the one end of slider oblique top (2) exposes movable chamber (11) and be equipped with shaping piece (24), system has spacing groove (22) on slider oblique top (2), install gag lever post (3) in slider (1), the bottom of gag lever post (3) is located in spacing groove (22), slider (1) remove the in-process of loosing core, gag lever post (3) are in spacing groove (22) are removed makes shaping piece (24) are different from the direction that slider (1) removed and are loosed core.
2. The oblique ejection core pulling mechanism of an injection mold according to claim 1, characterized in that a moving cavity (12) is formed in the sliding block (1), a block groove (23) is formed in the bottom of the sliding block oblique ejection (2), a block (7) is fixed on the moving mold, the end portion of the block (7) penetrates through the moving cavity (12) and is located in the block groove (23), and the sliding block (1) and the sliding block oblique ejection (2) can move relative to the block (7).
3. The oblique ejection core pulling mechanism of the injection mold according to claim 1, characterized in that a spring pressing block (6) is arranged on the sliding block (1), the spring pressing block (6) is located at the end part of the movable cavity (11), a spring (4) is arranged in the movable cavity (11), two ends of the spring (4) are respectively contacted with the sliding block oblique ejection (2) and the spring pressing block (6), and the spring (4) is in a compressed state when the mold is closed.
4. The oblique ejection core pulling mechanism of the injection mold according to claim 3, characterized in that a spring groove (21) is formed in the end portion of the slider oblique ejection (2), one end of the spring (4) is located in the spring groove (21) and is in contact with the groove bottom of the spring groove (21), a spring guide rod (5) is further arranged in the movable cavity (11), one end of the spring guide rod (5) penetrates through the spring groove (21) and is mounted on the slider oblique ejection (2), a pressing block through hole (61) is formed in the spring pressing block (6), the other end of the spring guide rod (5) penetrates through the pressing block through hole (61) and can move in the pressing block through hole (61), and the spring (4) is sleeved on the spring guide rod (5).
5. The oblique ejection core pulling mechanism of the injection mold according to claim 1, characterized in that a slide block limiting block (8) is further fixed on the movable mold, and when the slide block (1) is in contact with the slide block limiting block (8), the slide block (1) stops moving.
6. The oblique ejection core pulling mechanism of the injection mold according to claim 1, further comprising a fixed mold, wherein the fixed mold comprises an oblique guide pillar (9), the oblique guide pillar (9) is obliquely penetrated in the sliding block (1), after injection molding is finished, the fixed mold is separated from the movable mold, and the oblique guide pillar (9) drives the sliding block (1) to move and pull the core.
7. The oblique ejection core pulling mechanism of the injection mold according to claim 6, characterized in that an oblique guide pillar press block (92) is further fixed on the fixed mold, a press block groove (91) is formed in the oblique guide pillar (9), and the end part of the oblique guide pillar press block (92) is located in the press block groove (91) and is in contact with the oblique guide pillar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322681864.1U CN220864679U (en) | 2023-10-06 | 2023-10-06 | Oblique ejection core-pulling mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322681864.1U CN220864679U (en) | 2023-10-06 | 2023-10-06 | Oblique ejection core-pulling mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220864679U true CN220864679U (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322681864.1U Active CN220864679U (en) | 2023-10-06 | 2023-10-06 | Oblique ejection core-pulling mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220864679U (en) |
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2023
- 2023-10-06 CN CN202322681864.1U patent/CN220864679U/en active Active
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