CN219486459U - Secondary ejection mechanism and injection mold - Google Patents
Secondary ejection mechanism and injection mold Download PDFInfo
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- CN219486459U CN219486459U CN202320788758.0U CN202320788758U CN219486459U CN 219486459 U CN219486459 U CN 219486459U CN 202320788758 U CN202320788758 U CN 202320788758U CN 219486459 U CN219486459 U CN 219486459U
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Abstract
The utility model provides a secondary ejection mechanism, which relates to the technical field of injection molds and comprises a fixed block and a swinging piece which are respectively arranged on a first group of ejector plates and a second group of ejector plates, and a triggering piece for driving the swinging piece to swing; the first group of ejector plates and the second group of ejector plates are locked or unlocked in a clamping mode through clamping parts on the swinging piece and the fixed blocks, and when the swinging piece is in a locking state, the second group of ejector plates are pushed to move towards a direction close to the movable mould plate, so that the clamping parts are abutted against the fixed blocks to link the first group of ejector plates to synchronously move, and one ejection action is realized; when the inclined plane on the swinging piece is abutted against the trigger piece and compresses the elastic piece arranged on the second group of ejector plates to swing and unlock in the direction away from the fixed block, the second group of ejector plates independently move so as to realize the secondary ejection action. The die is simple in structure, convenient to process and assemble, and accordingly die cost is reduced. An injection mold is also provided.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a secondary ejection mechanism and an injection mold.
Background
In general, for products with larger ejection stroke, the acting force exerted on the products by the ejector pins during ejection can be reduced by utilizing secondary ejection, and defects on the products caused during ejection are avoided. The existing secondary ejection mechanisms are divided into three types, wherein the first type is a single ejector plate combined secondary ejection mechanism, the second type is a pneumatic/hydraulic type secondary ejection mechanism, and the two types of secondary ejection mechanisms have certain defects, the overall stability of the two types of secondary ejection mechanisms is poor, and the cost of the two types of secondary ejection mechanisms is high. Therefore, the third type of double ejector plate combined secondary ejection mechanism is more commonly used. However, the double ejector mechanism combined by the double ejector plates in the prior art has a complex integral structure and higher processing and production cost.
Disclosure of Invention
The utility model discloses a secondary ejection mechanism, and aims to solve the problems that the existing secondary ejection mechanism is complex in overall structure and high in processing production cost.
The utility model adopts the following scheme:
the secondary ejection mechanism comprises a fixed block and a swinging piece which are respectively arranged on a first group of ejector plates and a second group of ejector plates, and a triggering piece for driving the swinging piece to swing; the first group of ejector plates and the second group of ejector plates are locked or unlocked in a clamping mode with the fixed block through the clamping part on the swinging piece, and when the swinging piece is in a locking state, the second group of ejector plates are pushed to move towards a direction close to the movable template, so that the clamping part is abutted against the fixed block to link the first group of ejector plates to synchronously move, and one ejection action is realized; when the inclined plane on the swinging piece is abutted against the trigger piece and compresses the elastic piece arranged on the second group of ejector plates to swing and unlock in the direction away from the fixed block, the second group of ejector plates independently move so as to realize secondary ejection.
As a further improvement, the device also comprises a mounting seat assembled on the second group of ejector pins, wherein a mounting hole is formed in the mounting seat, the swinging piece is provided with a mounting hole corresponding to the mounting hole, one end of the elastic piece is configured in the mounting hole, and the other end of the elastic piece is propped against the mounting hole.
As a further improvement, the trigger is disposed on the movable die plate.
As a further improvement, the trigger piece is cylindrical and is fixed with the movable mould plate through a fastener.
As a further improvement, one end of the swinging piece is hinged with the second group of ejector pin plates, and the other end of the swinging piece forms an inclined plane which is inclined downwards from top to bottom.
The injection mold comprises a movable mold and a fixed mold, wherein the movable mold is provided with a first group of ejector plates, a second group of ejector plates and the secondary ejection mechanism.
As a further improvement, the first group of ejector plates is configured above the second group of ejector plates, the first group of ejector plates comprises a first panel and a first bottom plate, and the second group of ejector plates comprises a second panel and a second bottom plate.
The novel ejector pin plate is characterized by further comprising a reset rod, wherein the reset rod penetrates through the first group of ejector pin plates and the second group of ejector pin plates, and a reset spring is sleeved between the first bottom plate and the second bottom plate.
By adopting the technical scheme, the utility model can obtain the following technical effects:
when the ejector plate is ejected once, the clamping part on the swinging piece is clamped and locked with the fixed block, so that the first group of ejector plates and the second group of ejector plates synchronously move, and the ejector action is completed once when the first group of ejector plates are abutted against the movable mould plate. At this time, the inclined plane on the swinging member is propped against the trigger member, and the second group ejector pin plate is pushed continuously, so that the swinging member compresses the elastic member to move towards the direction far away from the fixed block, the corresponding swinging member and the fixed block are unlocked, and the second group ejector pin plate moves independently, thereby completing the secondary ejection action. It is easy to understand that only need set up swinging member, elastic component, fixed block and trigger piece alright realize the secondary ejecting in this application, simple structure, convenient processing and assembly to reduce the mould cost.
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 examples 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 diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of the swing member of FIG. 1 with the swing member fixed block unlocked;
FIG. 3 is an enlarged view of A in FIG. 2;
fig. 4 is a cross-sectional view of one embodiment of the present utility model.
Icon:
1-a first set of ejector pins plates; 11-a first panel; 12-a first bottom plate;
2-a second set of ejector pins plates; 21-a second panel; 22-a second floor;
3-fixing blocks;
4-swinging members; 41-a clamping part; 42-inclined plane;
5-triggering piece;
6-moving the template;
7-an elastic member;
8-mounting seats;
9-reset lever.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 4, the present embodiment provides a secondary ejection mechanism, which includes a fixed block 3 and a swinging member 4 respectively disposed on a first set of ejector plates 1 and a second set of ejector plates 2, and a trigger member 5 for driving the swinging member 4 to swing. Wherein the fixed block 3 is embedded on the first group of ejector plate 1. The swinging member 4 has one end hinged to the second group of ejector pins 2 and the other end formed with a slope 42 inclined downward from above. The trigger 5 is preferably cylindrical and is disposed on the movable die plate 6, and is fixed to the movable die plate 6 by a fastener (e.g., a screw). The first group of ejector plates 1 and the second group of ejector plates 2 are locked or unlocked in a clamping way with the fixed block 3 through the clamping part 41 on the swinging piece 4, and when the swinging piece 4 is in a locking state, the second group of ejector plates 2 are pushed to move towards the direction close to the movable mould plate 6 so that the clamping part 41 is abutted against the fixed block 3 to link the first group of ejector plates 1 to synchronously move, thus realizing one ejection action; when the inclined surface 42 on the swinging member 4 abuts against the triggering member 5 and compresses the elastic member 7 arranged on the second group of ejector plates 2 to swing and unlock in a direction away from the fixed block 3, the second group of ejector plates 2 moves alone to realize a secondary ejection action.
Specifically, the second group of ejector pins 2 is provided with a mounting seat 8, the mounting seat 8 is provided with a mounting hole, the swinging member 4 is provided with a mounting hole corresponding to the mounting hole, one end of the elastic member 7 (for example, a spring) is configured in the mounting hole, and the other end of the elastic member is propped against the mounting hole. Preferably, two sides of the movable mould plate are provided with secondary ejection mechanisms so as to ensure balanced stress in the ejection process.
During one ejection, the engagement portion 41 on the swinging member 4 is engaged with and locked with the fixed block 3, so that the first group of ejector plates 1 and the second group of ejector plates 2 move synchronously, and one ejection operation is completed when the first group of ejector plates 1 abuts against the movable mold plate 6. At this time, the inclined surface 42 on the swinging member 4 abuts against the trigger member 5, and the second group of ejector plates 2 is pushed continuously, so that the swinging member 4 compresses the elastic member 7 to move in a direction away from the fixed block 3, and the corresponding swinging member 4 and the fixed block 3 are unlocked, and the second group of ejector plates 2 moves independently, thereby completing the secondary ejection action. In this embodiment, only need set up swinging member 4, elastic component 7, fixed block 3 and trigger piece 5 alright realize the secondary ejecting, simple structure, convenient processing and assembly to reduce the mould cost.
An injection mold is further provided, which includes a movable mold and a fixed mold, wherein the movable mold is configured with a first set of ejector pins plates 1, a second set of ejector pins plates 2, and a secondary ejection mechanism as described in any of the above embodiments. The first set of ejector pins plates 1 is arranged above the second set of ejector pins 2, the first set of ejector pins 1 comprising a first panel 11 and a first bottom plate 12, the second set of ejector pins 2 comprising a second panel 21 and a second bottom plate 22. Preferably, the device further comprises a reset rod 9, wherein the reset rod 9 penetrates through the first group of ejector plates 1 and the second group of ejector plates 2, and a reset spring is sleeved between the first bottom plate 12 and the second bottom plate 21 by the reset rod 9.
It should be noted that, the reset lever 9 is fixed on the second bottom plate 22, and when the swinging member 4 is unlocked from the fixed block 3, the reset spring on the reset lever 9 abuts against the first group of ejector pins 1, so that the first group of ejector pins 1 abuts against the movable mold plate 6. When the ejection mechanism is reset, the pushing force applied to the second group of ejector plates 2 is removed, the second group of ejector plates 2 is reset under the action of the reset spring, so that the second group of ejector plates 2 moves downwards, at the moment, the inclined surface 42 on the swinging piece 4 is separated from the triggering piece 5 and moves towards the direction close to the fixed block 3 under the action of the elastic piece 7, so that the swinging piece 4 is locked with the fixed block 3 in a clamping way, and the first group of ejector plates 1 is driven to reset. For example, positioning grooves are formed in cushion blocks on two sides, during resetting, the first group of ejector plates 1 are abutted with the positioning grooves, and the second group of ejector plates are abutted on the movable die seat plate. Not limited thereto, and is not particularly limited.
The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model.
Claims (8)
1. The secondary ejection mechanism is characterized by comprising a fixed block and a swinging piece which are respectively arranged on the first group of ejector plates and the second group of ejector plates, and a triggering piece for driving the swinging piece to swing;
the first group of ejector plates and the second group of ejector plates are locked or unlocked in a clamping mode with the fixed block through the clamping part on the swinging piece, and when the swinging piece is in a locking state, the second group of ejector plates are pushed to move towards a direction close to the movable template, so that the clamping part is abutted against the fixed block to link the first group of ejector plates to synchronously move, and one ejection action is realized; when the inclined plane on the swinging piece is abutted against the trigger piece and compresses the elastic piece arranged on the second group of ejector plates to swing and unlock in the direction away from the fixed block, the second group of ejector plates independently move so as to realize secondary ejection.
2. The secondary ejection mechanism of claim 1, further comprising a mounting seat assembled on the second set of ejector pins, wherein a mounting hole is formed in the mounting seat, the swinging member is provided with a mounting hole corresponding to the mounting hole, one end of the elastic member is configured in the mounting hole, and the other end of the elastic member abuts against the mounting hole.
3. The secondary ejection mechanism of claim 1, wherein the trigger is disposed on the moving platen.
4. The secondary ejection mechanism of claim 1, wherein the trigger is cylindrical and is secured to the moving platen by a fastener.
5. The secondary ejection mechanism of claim 1, wherein the swing member has one end hinged to the second set of ejector pins and another end formed with a slope inclined downward from above.
6. An injection mold comprising a movable mold and a fixed mold, wherein the movable mold is provided with a first set of ejector pins, a second set of ejector pins, and the secondary ejection mechanism of any one of claims 1-5.
7. The injection mold of claim 6 wherein the first set of ejector plates is disposed above the second set of ejector plates, the first set of ejector plates comprising a first face plate and a first bottom plate, the second set of ejector plates comprising a second face plate and a second bottom plate.
8. The injection mold of claim 7, further comprising a return bar extending through the first and second sets of ejector plates, and wherein the return bar is sleeved with a return spring between the first and second bottom plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788758.0U CN219486459U (en) | 2023-04-11 | 2023-04-11 | Secondary ejection mechanism and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788758.0U CN219486459U (en) | 2023-04-11 | 2023-04-11 | Secondary ejection mechanism and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219486459U true CN219486459U (en) | 2023-08-08 |
Family
ID=87479795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320788758.0U Active CN219486459U (en) | 2023-04-11 | 2023-04-11 | Secondary ejection mechanism and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219486459U (en) |
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2023
- 2023-04-11 CN CN202320788758.0U patent/CN219486459U/en active Active
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