CN219445995U - Injection mold ejection structure - Google Patents
Injection mold ejection structure Download PDFInfo
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- CN219445995U CN219445995U CN202320584411.4U CN202320584411U CN219445995U CN 219445995 U CN219445995 U CN 219445995U CN 202320584411 U CN202320584411 U CN 202320584411U CN 219445995 U CN219445995 U CN 219445995U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to an injection mold ejection structure, which comprises a lower die holder, wherein a die groove is formed in the lower die holder, a bottom die plate is slidably arranged in the die groove, an ejection cavity is formed in the lower die holder in cooperation with the bottom die plate, a plurality of fixing columns are uniformly arranged in the ejection cavity, lifting grooves are formed in the top ends of the fixing columns, pistons are arranged in the lifting grooves, telescopic columns are arranged between the tops of the pistons and a bottom plate, an air supply device is arranged in cooperation with the bottom ends of the side walls of the fixing columns, a reset auxiliary spring is arranged between the bottom die plate and the inner bottom wall of the ejection cavity, a limiting convex edge is arranged at the top end of the ejection cavity, and a connecting convex edge is arranged at the bottom end of the bottom die plate in cooperation, and a sealing gasket is arranged at a position, close to the limiting convex edge.
Description
Technical Field
The utility model relates to the technical field of mold ejection, in particular to an injection mold ejection structure.
Background
In the production and processing process of the injection molding piece, the injection molding raw material is required to be extruded into an injection cavity of an injection mold, cooling and shaping are realized, and then the injection molding piece is required to be taken out from the injection cavity.
But injection mold's injection molding chamber is concave structure mostly, and when taking out, the convenience is relatively poor, influences injection mold's machining efficiency, consequently needs to set up the ejecting structure after being used for the injection molding of injection molding work piece on injection mold.
However, the existing ejection mechanism for an injection mold mainly adopts a spring as a driving member, for example, in chinese patent document with publication number CN215283194U, an ejection structure for an injection mold is provided, that is, the elastic force of the spring is used as the power for ejecting an injection molding workpiece, but in this way, as the extrusion frequency increases, the spring is aged, so that the extrusion force of the injection molding workpiece is insufficient, and the spring is used as the ejection power, so that the controllability is poor, the ejection of the injection molding workpiece cannot be accurately controlled, and the stability is poor.
Disclosure of Invention
The utility model aims to provide an ejection structure of an injection mold, which aims to solve the problems of poor controllability and poor stability caused by the fact that a spring is adopted as power when the ejection of a workpiece in the injection mold is realized in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an injection mold ejection structure, includes the die holder, the die cavity has been seted up on the die holder, slidable mounting has the die block board in the die cavity, ejecting chamber has been seted up to the cooperation die block board on the die holder, ejecting intracavity evenly is provided with a plurality of fixed columns, the lift groove has been seted up on the top of fixed column, be provided with the piston in the lift groove, be provided with the telescopic column between the top of piston and the bottom plate, the lateral wall bottom cooperation piston of fixed column is provided with air feeder, be provided with reset auxiliary spring between the inside diapire in die block board and ejecting chamber, the top in ejecting chamber is provided with spacing protruding edge, the bottom cooperation of die block board is provided with the connection protruding edge, the position that the connection protruding edge is close to spacing protruding edge is provided with sealed the pad.
As a further scheme of the utility model: the bottom of connecting protruding edge is provided with spacing post, spacing spout has been seted up to the cooperation on the die holder, spacing post slides and is located spacing spout, can improve the mobility stability of die block board in the die cavity through the cooperation of spacing post and spacing spout.
As still further aspects of the utility model: the limit sliding groove is internally matched with the limit column, the linear bearing is sleeved on the corresponding limit column, and the friction force of the limit column in the limit sliding groove can be reduced through the linear bearing.
As still further aspects of the utility model: the air supply device comprises an air pump, an output end of the air pump is provided with an air pipe, a shunt structure is arranged at the tail end of the air pipe, and driving of the piston during lifting movement in the lifting groove is achieved through cooperation of the air pump and the air pipe.
As still further aspects of the utility model: the shunt structure comprises a shunt tube connected with the gas pipe, the tail ends of the shunt tubes are respectively connected with the corresponding lifting grooves and correspondingly positioned below the piston, and the gas pipe is connected with the corresponding lifting grooves through the shunt tube.
As still further aspects of the utility model: the top of fixed column is provided with the baffle, the telescopic hole has been seted up to the flexible post of cooperation on the baffle, can improve the removal stability of flexible post in the lift inslot through the setting of baffle and telescopic hole.
As still further aspects of the utility model: the air inlet is formed in the top end of the side wall of the fixed column in a matched mode with the piston, the air inlet pipe is formed in the inner wall of the ejection cavity in a matched mode, and air inlet and air outlet in the ejection cavity are facilitated.
Compared with the prior art, the utility model has the advantages that:
1. the utility model comprises a lower die holder, wherein a die cavity is formed in the lower die holder, a bottom die plate for ejecting an injection molding workpiece is arranged in the lower die holder in a matched mode, meanwhile, an ejection cavity is formed in the lower die holder in a matched mode, a fixing column, a telescopic column, a piston and an air supply device are arranged in the ejection cavity, wherein the air supply device comprises an air pump, an air pipe and a shunt pipe which are matched with each other, and thus, the lifting of the piston in the lifting groove can be controlled by controlling the air suction of the air pump, and the lifting of the bottom die plate in the die cavity is controlled by the matching of the piston and the telescopic column, so that the ejection of the injection molding workpiece in the die cavity is realized.
2. Meanwhile, the reset auxiliary spring is arranged between the bottom die plate and the inner bottom wall of the ejection cavity, when the bottom die plate ascends in the die cavity, the reset auxiliary spring can be stretched to generate elastic force, and when the bottom die plate descends, the elastic force of the spring can assist in pulling the bottom die plate downwards, so that the reset power of the bottom die plate is ensured, and the stability of the bottom die plate in the die cavity is improved.
3. According to the utility model, the top end of the ejection cavity is provided with the limiting convex edge, the bottom end of the bottom template is provided with the connecting convex edge in a matched manner, the position, close to the limiting convex edge, of the connecting convex edge is provided with the sealing gasket, the bottom template can be more accurate in resetting in the die cavity through the matching of the limiting convex edge and the connecting convex edge, and meanwhile, the sealing performance of the bottom template in resetting in the die cavity can be ensured through the matching of the bottom template and the sealing gasket.
Drawings
FIG. 1 is a schematic diagram of the whole structure of an ejection structure of an injection mold according to the present utility model;
FIG. 2 is a schematic diagram of the whole structure of an ejection structure of an injection mold according to the present utility model;
FIG. 3 is a cross-sectional view of the overall structure of the present utility model;
FIG. 4 is a schematic view of the connection structure between the air pump, air pipe, shunt pipe, fixing column, telescopic column and bottom template according to the present utility model;
fig. 5 is a cross-sectional view showing a connection structure between a fixed column and a telescopic column in the present utility model.
In the figure: 1. a lower die holder; 2. a die cavity; 3. a bottom template; 4. an ejection cavity; 5. fixing the column; 6. a lifting groove; 7. a piston; 8. a telescopic column; 9. a return auxiliary spring; 10. limiting convex edges; 11. connecting the convex edges; 12. a sealing gasket; 13. a limit column; 14. limiting sliding grooves; 15. a linear bearing; 16. an air pump; 17. a gas pipe; 18. a shunt; 19. a baffle; 20. a telescopic hole; 21. an air inlet; 22. and an air inlet pipe.
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.
Example 1:
referring to fig. 1 to 5, in an embodiment of the present utility model:
the utility model provides an injection mold ejection structure, including die holder 1, die cavity 2 has been seted up on the die holder 1, sliding fit has die block 3 in the die cavity 2, ejection chamber 4 has been seted up to cooperation die block 3 on the die holder 1, evenly be provided with a plurality of fixed columns 5 in the ejection chamber 4, lifting groove 6 has been seted up on the top of fixed column 5, be provided with piston 7 in the lifting groove 6, be provided with telescopic column 8 between piston 7's the top and the bottom plate, the lateral wall bottom cooperation piston 7 of fixed column 5 is provided with air feeder, be provided with reset auxiliary spring 9 between the inside diapire of die block 3 and ejection chamber 4, the top of ejection chamber 4 is provided with spacing protruding edge 10, the bottom cooperation of die block 3 is provided with and connects protruding edge 11, the position that the connection protruding edge 11 is close to spacing protruding edge 10 is provided with sealed pad 12.
As a further scheme of the utility model: the bottom of connecting protruding edge 11 is provided with spacing post 13, spacing spout 14 has been seted up to the cooperation on die holder 1, spacing post 13 slides and is located spacing spout 14, spacing spout 14 internal fit spacing post 13 is provided with linear bearing 15, linear bearing 15 cover is established on corresponding spacing post 13, when die block board 3 reciprocates in die slot 2, can drive spacing post 13 and remove in spacing spout 14, can restrict the direction of movement of spacing post 13 through spacing spout 14, improve the mobility stability of spacing post 13, thereby the mobility stability of die block board 3 in die slot 2 has been improved, and make die block board 3 return to the normal position in die slot 2, connecting protruding edge 11 can coincide with spacing protruding edge 10, improve the leakproofness between die block board 3 and the die slot 2, simultaneously, friction force when the die block board 13 moves in spacing spout 14 can be reduced through the setting up of linear bearing 15, the smoothness when the die block board 13 moves in spacing spout 14 has been guaranteed the smoothness when die block board 3 is ejecting.
As still further aspects of the utility model: the air supply device comprises an air pump 16, wherein the air pump 16 is a bidirectional air pump, the output end of the air pump 16 is provided with an air pipe 17, the tail end of the air pipe 17 is provided with a split-flow structure, the split-flow structure comprises split pipes 18 connected with the air pipe 17, the tail ends of the split pipes 18 are respectively connected with corresponding lifting grooves 6 and correspondingly positioned below the pistons 7, when the workpiece in the die grooves 2 is ejected, the air pump 16 is started, external air is conveyed to the split pipes 18 through the air pump 16 through the air pipe 17, and is respectively conveyed into the corresponding lifting grooves 6 through the split pipes 18, and the pistons 7 positioned in the lifting grooves 6 are extruded, so that the pistons 7 extrude the telescopic columns 8 at the top ends, the telescopic columns 8 ascend upwards to extrude the die plates 3, and the workpiece in the die grooves 2 is smoothly ejected outwards through the ascending of the die plates 3, and the demolding operation after the workpiece injection molding is finished is facilitated.
In the embodiment of the utility model, the following steps are included: the top of fixed column 5 is provided with baffle 19, and flexible hole 20 has been seted up to cooperation telescopic column 8 on the baffle 19, can make flexible column 8 and piston 7 stable removal in lift groove 6 through the cooperation of baffle 19 and flexible hole 20 to improve the stability of pushing of flexible column 8 to die block board 3, guarantee the stability of moving of die block board 3 in die cavity 2, and then realize the stable ejecting of the machined part that is located die cavity 2.
In the embodiment of the utility model, the following steps are included: the air inlet 21 is formed in the top end of the side wall of the fixed column 5, the air inlet pipe 22 is formed in the inner wall of the ejection cavity 4, the piston 7 can be guaranteed to flow in the lifting groove 6 and the ejection cavity 4 when the lifting groove 6 and the bottom template 3 move in the die groove 2, the moving stability of the piston 7 and the bottom template 3 is guaranteed, when the bottom template 3 moves upwards in the die groove 2, air flow in the lifting groove 6 is discharged into the ejection cavity 4 through the air inlet 21, meanwhile, under the pumping force of the upward movement of the bottom template 3, air pressure in the ejection cavity 4 is smaller than external air pressure, external air flow can enter the ejection cavity 4 through the air inlet pipe 22 under the action of pressure, accordingly, smooth upward ejection of the bottom template 3 is further guaranteed, when the bottom template 3 descends, the piston 7 descends in the lifting groove 6 under the pumping force of the air pump 16, a part of air in the ejection cavity 4 enters the lifting groove 6 through the air inlet 21, smooth descending of the piston 7 is guaranteed, and the other part of the air is discharged into the ejection cavity 4 through the air inlet pipe 22, and smooth downward movement of the bottom template 3 is guaranteed.
Example 2:
referring to fig. 1 to 5, the present utility model relates to an ejection structure of an injection mold, in which a lower mold base 1 is used in cooperation with an external corresponding upper mold base, and ejection operations of injection molding workpieces are performed after the upper mold base is separated from the lower mold base 1, or may be performed synchronously, and separated portions of the upper mold base and the lower mold base 1 are known in the prior art, and are not described in detail herein, but only a top portion of the workpieces after injection molding is performed;
after the injection molding of the workpiece in the die is completed, the air pump 16 is started, external air is conveyed to the position of the shunt tube 18 through the air pump 16, and is respectively conveyed to the corresponding lifting groove 6 through the shunt tube 18, and the piston 7 positioned in the lifting groove 6 is extruded, so that the piston 7 extrudes the telescopic column 8 at the top end, the telescopic column 8 ascends to extrude the bottom template 3 upwards, the bottom template 3 ascends in the die groove 2, the injection molding workpiece positioned in the die groove 2 is smoothly ejected outwards, and the demolding operation after the injection molding of the workpiece is completed is facilitated;
in this process, the air inlet 21 and the air inlet pipe 22 can ensure that the air quantity in the ejection cavity 4 can change along with the rising of the top template, and the air quantity above the lifting groove 6 can change along with the rising of the piston 7 in the lifting groove 6, so that the space of the lifting groove 6 on the upper part of the piston 7 and the ejection groove are always in a normal pressure state, the smooth movement of the piston 7 in the lifting groove 6 and the smooth movement of the bottom template 3 in the die groove 2 are ensured, and the smooth ejection of an injection molding workpiece is realized.
Example 3:
referring to fig. 1 to 5, on the basis of embodiment 2, after the injection molding workpiece is smoothly ejected and removed, the air pump 16 is controlled to reversely pump air, the air in the lifting groove 6 below the piston 7 is pumped out, so that the air pressure in the space below the piston 7 is reduced, the piston 7 is extruded by the air above the piston 7 to descend in the lifting groove 6, the descending of the piston 7 drives the descending of the telescopic column 8, and the descending of the telescopic column 8 drives the descending of the bottom template 3 in the die groove 2, so that the bottom template 3 returns to the original position in the die groove 2 for the next injection molding processing;
in the process, along with the descending of the bottom template 3, air in the ejection cavity 4 is extruded, one part of air enters the part of the lifting groove 6 above the piston 7 through the air inlet 21, smooth movement of the piston 7 is ensured, and the other part of air is discharged outwards through the air inlet pipe 22, so that smooth descending of the bottom template 3 in the die groove 2 is ensured;
meanwhile, a reset auxiliary spring 9 is arranged between the bottom die plate 3 and the inner bottom wall of the ejection cavity 4, when the bottom die plate 3 ascends in the die cavity 2, the reset auxiliary spring 9 can be stretched to generate elastic force, and when the bottom die plate 3 descends, the elastic force of the spring can assist in pulling the bottom die plate 3 downwards, so that the reset power of the bottom die plate 3 is ensured, and the stability of the bottom die plate 3 in the die cavity 2 during reset is improved.
Example 4:
referring to fig. 1 to 5, on the basis of embodiment 3, the top end of the ejection cavity 4 is provided with a limiting flange 10, the bottom end of the bottom die plate 3 is provided with a connecting flange 11 in a matched manner, the position of the connecting flange 11 close to the limiting flange 10 is provided with a sealing gasket 12, the bottom die plate 3 can be more accurate when being reset in the die cavity 2 through the matching of the limiting flange 10 and the connecting flange 11, and meanwhile, the sealing performance of the bottom die plate 3 when being reset in the die cavity 2 can be ensured through the matching of the sealing gasket 12, meanwhile, the utility model is provided with a limiting post 13, a limiting chute 14 and a linear bearing 15 which are matched with each other between the connecting flange 11 and the lower die holder 1, and the stability of the bottom die plate 3 when moving in the die cavity 2 can be improved through the matching of the limiting post 13 and the limiting chute 14, and the accuracy of the bottom die plate 3 when being reset in the die cavity 2 and the stability of an injection molded workpiece when being ejected in the die cavity 2 are further improved.
In all the above mentioned embodiments, the welding, the matching connection of the bolt and the nut, the bolt or the screw connection or other known connection modes can be selected according to the actual situation, and are not described in detail herein, the above description refers to the write-in fixed connection, and the welding is preferentially considered, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art should be covered by the protection scope of the present utility model if the technical scheme and the inventive concept thereof are equivalent or changed within the scope of the present utility model.
Claims (7)
1. The utility model provides an injection mold ejection structure, includes die holder (1), set up die cavity (2), its characterized in that on die holder (1): the die comprises a die cavity (2), a bottom die plate (3) is mounted in the die cavity (2), an ejection cavity (4) is formed in the lower die holder (1) in a matched mode, a plurality of fixing columns (5) are uniformly arranged in the ejection cavity (4), lifting grooves (6) are formed in the top ends of the fixing columns (5), pistons (7) are arranged in the lifting grooves (6), telescopic columns (8) are arranged between the tops of the pistons (7) and a bottom plate, a gas supply device is arranged on the bottom wall of the fixing columns (5) in a matched mode, a reset auxiliary spring (9) is arranged between the bottom die plate (3) and the inner bottom wall of the ejection cavity (4), limiting convex edges (10) are arranged on the top ends of the ejection cavity (4), connecting convex edges (11) are arranged on the bottom ends of the bottom die plate (3) in a matched mode, and sealing gaskets (12) are arranged on the positions, close to the limiting convex edges (10), of the connecting convex edges (11).
2. The injection mold ejection structure of claim 1, wherein: the bottom of the connecting convex edge (11) is provided with a limiting column (13), a limiting chute (14) is matched with the lower die holder (1), and the limiting column (13) is slidably positioned in the limiting chute (14).
3. The injection mold ejection structure of claim 2, wherein: the limiting chute (14) is internally matched with the limiting column (13) and is provided with a linear bearing (15), and the linear bearing (15) is sleeved on the corresponding limiting column (13).
4. The injection mold ejection structure of claim 1, wherein: the air supply device comprises an air pump (16), an air pipe (17) is arranged at the output end of the air pump (16), and a shunt structure is arranged at the tail end of the air pipe (17).
5. The injection mold ejection structure of claim 4, wherein: the shunt structure comprises a shunt tube (18) connected with the gas pipe (17), and the tail ends of the shunt tubes (18) are respectively connected with the corresponding lifting grooves (6) and are correspondingly positioned below the piston (7).
6. The injection mold ejection structure of claim 1, wherein: the top of fixed column (5) is provided with baffle (19), telescopic hole (20) have been seted up to cooperation telescopic column (8) on baffle (19).
7. The injection mold ejection structure of claim 6, wherein: an air inlet (21) is formed in the top end of the side wall of the fixed column (5) in cooperation with the piston (7), and an air inlet pipe (22) is formed in the inner wall of the ejection cavity (4) in cooperation with the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320584411.4U CN219445995U (en) | 2023-03-23 | 2023-03-23 | Injection mold ejection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320584411.4U CN219445995U (en) | 2023-03-23 | 2023-03-23 | Injection mold ejection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219445995U true CN219445995U (en) | 2023-08-01 |
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ID=87382362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320584411.4U Active CN219445995U (en) | 2023-03-23 | 2023-03-23 | Injection mold ejection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219445995U (en) |
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2023
- 2023-03-23 CN CN202320584411.4U patent/CN219445995U/en active Active
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