CN217597734U - Inner core-pulling mechanism of injection mold - Google Patents
Inner core-pulling mechanism of injection mold Download PDFInfo
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- CN217597734U CN217597734U CN202220646158.6U CN202220646158U CN217597734U CN 217597734 U CN217597734 U CN 217597734U CN 202220646158 U CN202220646158 U CN 202220646158U CN 217597734 U CN217597734 U CN 217597734U
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Abstract
The utility model relates to an injection mold's interior mechanism of loosing core, including movable mould, slider, the system has the shifting chute in the movable mould, be equipped with the stopper in the shifting chute and loose the core piece, the stopper with the slider is located respectively the both sides of loosing the core piece, it has the mounting groove to loose the core the system in the piece, be equipped with spring and installation screw in the mounting groove, the spring housing is established the pole portion of installation screw, the both ends of spring respectively with the cap head of installation screw and the tank bottom of mounting groove contacts, the pole portion of installation screw passes the core piece the stopper and with the movable mould is fixed. Compared with the prior art, the utility model discloses being provided with two sets of core pulling blocks, satisfying two back-offs demand of loosing core on the product, the simple structure of loosing core, convenient and fast, it is small, simplified the operation process, reduce mould manufacturing cost improves the production efficiency of moulding plastics.
Description
Technical Field
The utility model relates to an injection mold's interior mechanism of loosing core belongs to injection mold technical field.
Background
The condition that a plurality of inverted buckles need to loose core is often encountered during the injection molding production of products. The core pulling mechanism in the prior art is complex in structure, large in size and complex in operation process, so that the production cost of the mold is high, the injection molding production efficiency is low, a plurality of cores can not be pulled simultaneously, and the core pulling requirements of multiple reverse buckles can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the shortcoming of prior art, provide a simple structure's injection mold's mechanism of loosing core in.
For realizing the purpose the utility model adopts the technical proposal that:
injection mold's interior mechanism of loosing core, including movable mould, slider, the system has the shifting chute in the movable mould, be equipped with the stopper in the shifting chute and loose core the piece, the stopper with the slider is located respectively the both sides of loosing core the piece, it has the mounting groove to loose core the system in the piece, be equipped with spring and installation screw in the mounting groove, the spring housing is established the pole portion of installation screw, the both ends of spring respectively with the cap head of installation screw and the tank bottom of mounting groove contacts, the pole portion of installation screw passes the piece of loosing core the stopper and with the movable mould is fixed.
As a further optimization of the above technical solution: when the die is assembled, the limiting block and the sliding block are tightly attached to the core-pulling block, the spring is in a compressed state, and the core-pulling block, the movable die and the sliding block jointly form part of a die cavity.
As a further optimization of the above technical solution: the limiting block comprises a rotary positioning block and a positioning pin, the rotary positioning block is provided with a positioning hole, the positioning pin penetrates through the positioning hole and is fixed with the movable die, the rotary positioning block can rotate relative to the movable die, two ends of one side, close to the core-pulling block, of the rotary positioning block are respectively provided with a lug and a notch, a rotary hole is further formed in the rotary positioning block, and a rod part of the mounting screw is located in the rotary hole and can move in the rotary hole.
As a further optimization of the above technical solution: still be provided with the transmission piece in the shifting chute, one side of slider 2 is equipped with the fixture block, during the compound die the fixture block card is gone into in the shifting chute and the extrusion the transmission piece, the transmission piece with the breach contacts and drives rotatory locating piece is rotatory, the lug drives the core piece is toward being close to the direction of slider removes until the core piece with the slider is hugged closely.
As a further optimization of the above technical solution: and the core-pulling block is provided with a forming groove for reversely buckling and forming the product.
As a further optimization of the above technical solution: the core-pulling block, the spring, the mounting screw and the limiting block are provided with two groups.
Compared with the prior art, the utility model is provided with two groups of core-pulling blocks, thereby meeting the requirements of two inverted buckles on the product for core-pulling, having simple core-pulling structure, convenience and rapidness and small volume, simplifying the operation process, reducing the production cost of the mould and improving the injection molding production efficiency; the transmission block is extruded through the sliding block during die assembly, the transmission block extrudes the rotatable rotary positioning block to realize positioning of the core pulling block, and the core pulling block is prevented from moving backwards to cause injection molding failure during injection molding.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic sectional structure diagram of the mold closing state of the middle part structure of the present invention.
Fig. 3 is a schematic cross-sectional view of the mold opening state of the middle part structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description. As shown in fig. 1-3, the inner core-pulling mechanism of the injection mold comprises a movable mold 1 and a slide block 2. The movable mould 1 system has the shifting chute 11 in, is equipped with stopper and the piece 3 of loosing core in the shifting chute 11, and stopper and slider 2 are located the both sides of the piece 3 of loosing core respectively. The core-pulling block 3 is internally provided with a mounting groove 31, a spring 4 and a mounting screw 6 are arranged in the mounting groove 31, the rod part of the mounting screw 6 is sleeved with the spring 4, and two ends of the spring 4 are respectively contacted with the cap head of the mounting screw 6 and the groove bottom of the mounting groove 31. The rod part of the mounting screw 6 penetrates through the core-pulling block 3 and the limiting block and is fixed with the movable die 1. When the die is closed, the limiting block and the sliding block 2 are tightly attached to the core-pulling block 3, the spring 4 is in a compressed state, and the core-pulling block 3, the movable die 1 and the sliding block 2 jointly form a part of a die cavity.
In the above technical scheme: the limiting block comprises a rotary positioning block 5 and a positioning pin 8, a positioning hole is formed in the rotary positioning block 5, the positioning pin 8 penetrates through the positioning hole and is fixed with the movable die 1, and the rotary positioning block 5 can rotate relative to the movable die 1. The two ends of the rotary positioning block 5 close to one side of the core-pulling block 3 are respectively provided with a lug 53 and a notch 51. The rotary positioning block 5 is also provided with a rotary hole 52, and the rod part of the mounting screw 6 is positioned in the rotary hole 52 and can move in the rotary hole 52.
In the above technical scheme: the moving groove 11 is also provided with a transmission block 7, and one side of the sliding block 2 is provided with a clamping block 21. When the die is assembled, the clamping block 21 is clamped into the moving groove 11 and extrudes the transmission block 7, the transmission block 7 is in contact with the notch 51 and drives the rotary positioning block 5 to rotate, the lug 53 drives the core-pulling block 3 to move towards the direction close to the sliding block 2 until the core-pulling block 3 is attached to the sliding block 2, and the spring 4 is compressed. The rotary positioning block 5 is positioned by the transmission block 7 and cannot rotate, so that the core pulling block 3 is positioned, and the problem of injection failure caused by backward movement of the core pulling block 3 during injection is prevented.
In the above technical scheme: the core-pulling block 3 is provided with a forming groove 32 which enables the product to be molded in an inverted manner.
In the above technical scheme: the rod part of the mounting screw 6 is also sleeved with a gasket 9, and two ends of the spring 4 are respectively contacted with the gasket 9 and the groove bottom of the mounting groove 31. The washer 9 increases the contact area of the mounting screw 6 and the spring 4, so that the spring 4 works more stably.
In the above technical scheme: the core pulling block 3, the spring 4, the mounting screw 6 and the limiting block are provided with two sets, the requirement of two reverse buckles on a product for core pulling is met, the core pulling structure is simple, convenient and fast, the size is small, the operation process is simplified, the production cost of a mold is reduced, and the injection molding production efficiency is improved. The transmission block 7 is located between the two core blocks 3. In the process of die assembly, the two rotary positioning blocks 5 are close to each other; in the mold opening process, the two rotary positioning blocks 5 are far away from each other.
The utility model discloses an operating process as follows, the back of finishing of moulding plastics, the separation of movable mould cover, slider 2 toward the direction of keeping away from core-pulling piece 3 removes, and slider 2 breaks away from the product. At this time, the latch 21 no longer presses the transmission block 7, and the rotation positioning block 5 is in a rotatable state. The elasticity of the spring 4 is released, the core-pulling block 3 moves towards the direction far away from the slide block 2, and the product gradually breaks away from the forming groove 32 to complete core pulling. In the process, the core-pulling block 3 drives the rotary positioning block 5 to rotate, and the notch 51 drives the transmission block 7 to move towards the direction close to the sliding block 2. The rod of the mounting screw 6 is matched with the rotating hole 52 to limit the rotating process of the rotating positioning block 5, and when the rod of the mounting screw 6 is contacted with the hole wall of the rotating hole 52, the rotating positioning block 5 stops rotating.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, all technical personnel in this technical field rely on the utility model discloses a conceive technical scheme that can obtain through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into the utility model discloses a within the scope of protection.
Claims (5)
1. The inner core-pulling mechanism of the injection mold comprises a movable mold (1) and a sliding block (2), and is characterized in that a moving groove (11) is formed in the movable mold (1), a limiting block and a core-pulling block (3) are arranged in the moving groove (11), the limiting block and the sliding block (2) are respectively located on two sides of the core-pulling block (3), an installation groove (31) is formed in the core-pulling block (3), a spring (4) and an installation screw (6) are arranged in the installation groove (31), the spring (4) is sleeved on a rod portion of the installation screw (6), two ends of the spring (4) are respectively contacted with a cap head of the installation screw (6) and a groove bottom of the installation groove (31), and the rod portion of the installation screw (6) penetrates through the core-pulling block (3) and the limiting block and is fixed with the movable mold (1);
when the die is assembled, the limiting block and the sliding block (2) are tightly attached to the core-pulling block (3), the spring (4) is in a compressed state, and the core-pulling block (3), the movable die (1) and the sliding block (2) jointly form a part of a die cavity.
2. The inner core pulling mechanism of the injection mold according to claim 1, wherein the limiting block comprises a rotary positioning block (5) and a positioning pin (8), the rotary positioning block (5) is provided with a positioning hole, the positioning pin (8) penetrates through the positioning hole and is fixed with the movable mold (1), the rotary positioning block (5) can rotate relative to the movable mold (1), two ends of one side of the rotary positioning block (5) close to the core pulling block (3) are respectively provided with a lug boss (53) and a notch (51), the rotary positioning block (5) is further provided with a rotary hole (52), and a rod part of the mounting screw (6) is positioned in the rotary hole (52) and can move in the rotary hole (52).
3. The inner core pulling mechanism of the injection mold according to claim 2, characterized in that a transmission block (7) is further arranged in the moving groove (11), a clamping block (21) is arranged on one side of the sliding block (2), the clamping block (21) is clamped in the moving groove (11) and extrudes the transmission block (7) during mold closing, the transmission block (7) is in contact with the notch (51) and drives the rotary positioning block (5) to rotate, and the protrusion (53) drives the core pulling block (3) to move towards the direction close to the sliding block (2) until the core pulling block (3) is tightly attached to the sliding block (2).
4. An internal core-pulling mechanism of an injection mold according to claim 1, characterized in that the core-pulling block (3) is formed with a forming groove (32) for back-forming the product.
5. The inner core-pulling mechanism of the injection mold according to any one of claims 1-4, characterized in that the core-pulling block (3), the spring (4), the mounting screw (6) and the limiting block are provided with two sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646158.6U CN217597734U (en) | 2022-03-23 | 2022-03-23 | Inner core-pulling mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646158.6U CN217597734U (en) | 2022-03-23 | 2022-03-23 | Inner core-pulling mechanism of injection mold |
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| Publication Number | Publication Date |
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| CN217597734U true CN217597734U (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220646158.6U Active CN217597734U (en) | 2022-03-23 | 2022-03-23 | Inner core-pulling mechanism of injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851492A (en) * | 2022-03-23 | 2022-08-05 | 浙江台州美多模具有限公司 | Inner core-pulling mechanism of injection mold |
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- 2022-03-23 CN CN202220646158.6U patent/CN217597734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851492A (en) * | 2022-03-23 | 2022-08-05 | 浙江台州美多模具有限公司 | Inner core-pulling mechanism of injection mold |
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