CN218286603U - Mold opening sequence control mechanism of injection mold - Google Patents
Mold opening sequence control mechanism of injection mold Download PDFInfo
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- CN218286603U CN218286603U CN202222279973.6U CN202222279973U CN218286603U CN 218286603 U CN218286603 U CN 218286603U CN 202222279973 U CN202222279973 U CN 202222279973U CN 218286603 U CN218286603 U CN 218286603U
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- 239000007924 injection Substances 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 3
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- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
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Abstract
The utility model provides an injection mold die sinking sequence control mechanism, which belongs to the technical field of injection molds and comprises an upper template, a middle template, a lower template and a die opening and closing assembly, wherein the die opening and closing assembly comprises a movable pull rod fixed on the lower template, a die locking piece rotationally connected on the middle template and a die locking pin fixed on the upper template; the upper part of the locking module is provided with a locking hook part matched with the locking pin, and the locking hook part hooks the locking pin when the die is closed; the movable pull rod is in linkage fit with the mold locking piece, and the movable pull rod can move up and down to enable the mold locking piece to swing around the rotating pin, so that the lock hook part of the mold locking piece swings towards the direction close to the mold locking pin or away from the mold locking pin; when the mold is opened, the lower mold plate and the middle mold plate are opened for the first time, so that the movable pull rod moves downwards to drive the locking hook part of the locking module to be separated from the mold locking pin, and the upper mold plate and the middle mold plate can be opened for the second time. The utility model discloses simple structure, control is convenient, and the processing cost is low, can guarantee that the die sinking order is accurate.
Description
Technical Field
The utility model relates to an injection mold die sinking sequence control mechanism belongs to injection mold technical field.
Background
In an injection mold, according to the requirements of different injection molding parts, a mold cavity and a mold core need to be opened in a certain sequence, the mold generally has a plurality of sliding blocks or loose cores, the mold opening sequence of the mold is required to be strictly controlled, and otherwise, a product is damaged by collision.
Chinese patent publication No. CN201261250Y discloses a sequential mold opening and closing mechanism for an injection mold, which at least comprises an upper mold plate, a middle mold plate and a lower mold plate that can open and close the mold, and further comprises a positioning device disposed on the middle mold plate and two pull rods disposed on the upper mold plate and the lower mold plate, wherein a brake block that is locked with one of the pull rods when the other pull rod slides relative to the positioning device is disposed in the positioning device. The brake block is arranged between the upper pull rod and the lower pull rod in a left-right sliding manner, a positioning block and a positioning pin for limiting the stroke of the positioning block are further arranged in the positioning device, the front surface of the positioning block is attached to the back surface of the upper pull rod, and the back surface is provided with an elastic element. When the mold opening starts, the brake block clamps the upper pull rod to be fixed, and the lower template and the middle template are opened; after the upper die plate moves to the distance determined by the lower pull rod, the die opening force can push the brake block to move towards the direction of the lower pull rod, and the upper die plate and the middle die plate are opened to finish the die opening action; the mold closing is the reverse resetting of the mechanism. The mechanism can meet the requirement of opening the die of the die plate in sequence, but the structure is more complex, the number of parts is more, the matching requirement between the parts is higher, and the processing cost is high. Therefore, how to realize the sequential die opening of the dies by a simple structure is a problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome above-mentioned problem, and provide a simple structure, control convenience, the low injection mold die sinking sequence control mechanism of processing cost.
The technical scheme of the utility model is that:
the utility model provides an injection mold die sinking sequence control mechanism, includes cope match-plate pattern, middle template and the lower bolster of can opening, compound die, its characterized in that: the mould locking device comprises a lower template, a middle template, at least one mould opening and closing assembly and a mould locking pin, wherein the middle template is fixedly arranged on the upper template; the middle part of the mold locking piece is rotationally connected to the middle template through a rotating pin, the upper part of the mold locking piece is provided with a mold locking hook part matched with the mold locking pin, and the mold locking pin is hooked by the mold locking hook part during mold closing; the movable pull rod is in linkage fit with the mold locking piece, the movable pull rod can move up and down to enable the mold locking piece to swing around the rotating pin, the movable pull rod moves down to enable the lock hook part of the mold locking piece to swing towards the direction far away from the mold locking pin, and the movable pull rod moves up to enable the lock hook part to swing towards the direction close to the mold locking pin; when the mold is opened, the lower mold plate and the middle mold plate are opened for the first time, so that the movable pull rod moves downwards to drive the locking hook part of the locking module to be separated from the mold locking pin, and the upper mold plate and the middle mold plate can be opened for the second time.
When the mold is opened, the mold locking pin is hooked by the lock hook part of the mold locking part to lock the upper mold plate and the middle mold plate, so that the upper mold plate and the middle mold plate cannot be opened, the lower mold plate and the middle mold plate are opened for the first time, and after the lower mold plate reaches a certain stroke, the movable pull rod drives the lock hook part to be separated from the mold locking pin, so that the secondary mold opening of the upper mold plate and the middle mold plate can be carried out, and the sequential mold opening action of the whole injection mold is realized; when the die is closed, the upper die plate and the middle die plate are closed, then the lower die plate and the middle die plate are closed, the pull rod is moved to drive the die locking piece to reset, the die locking pin is hooked by the locking hook part again, and the die closing action is completed. The mold opening sequence is controlled by utilizing a mechanical principle, the structure is simple, the control is convenient, the requirement on the matching between parts is not high, the processing cost is low, the mold structure can be simplified, and the accuracy of the mold opening sequence is ensured.
Preferably, in the above-mentioned mold opening sequence control mechanism for an injection mold, the mold opening and closing assembly further comprises a tension spring, one end of the tension spring is connected to the middle mold plate, the other end of the tension spring is connected to the lock module, and the tension spring applies force to the lock module to enable the lock hook portion of the lock module to always swing towards the direction of the lock pin. Set up the extension spring and can prevent that the mode locking piece from breaking away from completely after the die sinking, produce the trouble when avoiding the compound die to reset, play the guard action.
Furthermore, in the above mechanism for controlling mold opening sequence of an injection mold, the lower part of the movable pull rod is fixed on the lower mold plate, the upper part of the movable pull rod is provided with a first protrusion protruding towards the mold locking part, the lower part of the mold locking part is provided with a second protrusion protruding towards the movable pull rod, when the mold is closed, the first protrusion on the upper part of the movable pull rod abuts against the back of the lock hook part on the upper part of the mold locking part, and the second protrusion on the lower part of the mold locking part abuts against the lower part of the movable pull rod; the moving pull rod moves downwards to enable the first protrusion to push the second protrusion and the lower portion of the locking module to swing towards the direction far away from the moving pull rod, so that the locking hook portion swings reversely to be separated from the locking module pin.
Further, in the above-mentioned mechanism for controlling the mold opening sequence of the injection mold, a pushing inclined plane is formed at the bottom of the first protrusion, a matching inclined plane is formed at the top of the second protrusion, and when the moving pull rod moves downward, the pushing inclined plane is attached to the matching inclined plane and pushes the lower part of the lock module to swing.
Further, in the above-mentioned mechanism for controlling a mold opening sequence of an injection mold, an opening of the mold locking part is directed away from the movable tie rod.
Further, in the above-mentioned mechanism for controlling the mold opening sequence of the injection mold, the tension spring is disposed on a side of the mold locking member away from the movable pull rod, and one end of the tension spring is connected to a position of the mold locking member between the rotating pin and the locking hook portion.
Furthermore, in the above-mentioned mechanism for controlling the mold opening sequence of the injection mold, the mold opening and closing assemblies have four sets, which are respectively disposed on two opposite sides of the injection mold, two sets are disposed on each side, and the two sets of mold opening and closing assemblies on the same side are symmetrically disposed. The mould stress is balanced when setting up like this and making the mould open and shut, and the mould process of opening and shutting is more steady to improve the reliability of mould and injection moulding product's quality.
The utility model has the advantages that: the mold opening sequence is controlled by utilizing a mechanical principle, the structure is simple, the control is convenient, the mold structure can be simplified, the mold opening sequence is accurate and is stable in the mold opening and closing process, so that the product collision damage is avoided, and the quality of an injection molding product and the reliability of a mold are improved; and the matching requirement between parts is not high, and the processing cost is low.
Drawings
Fig. 1 is a schematic structural diagram of a mold closing state according to an embodiment of the present invention.
Fig. 2 is a schematic structure diagram of a mold opening according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the secondary mold opening of the embodiment of the present invention.
Fig. 4 is an enlarged view of fig. 2 at P.
In the figure: A. a mold opening and closing assembly; 1. mounting a template; 2. an intermediate template; 21. a fixing pin; 3. a lower template; 4. moving the pull rod; 41. a first protrusion; 42. pushing the inclined plane; 5. a lock module; 51. a rotation pin; 52. a latch hook portion; 53. a second protrusion; 54. a mating bevel; 55. pulling the hook part; 6. a mold locking pin; 7. a tension spring.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and examples:
in the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the mold opening sequence control mechanism of the injection mold provided in this embodiment includes an upper mold plate 1 and an intermediate mold plate 2 that can be opened and closed, and an intermediate mold plate 2 and a lower mold plate 3 that can be opened and closed.
In order to realize the sequential die opening of the die, namely, firstly opening the die by the lower die plate 3 and the middle die plate 2 for the first time, and then opening the die by the upper die plate 1 and the middle die plate 2 for the second time, the mechanism is also provided with at least one group of die opening and closing assemblies A. The mold opening and closing assembly A comprises a movable pull rod 4 fixed on the outer side wall of the lower template 3, a mold locking part 5 rotatably connected on the outer side wall of the middle template 2, and a mold locking pin 6 fixed on the outer side wall of the upper template 1. The middle part of the locking module 5 is rotatably connected to the middle formwork 2 through a rotating pin 51, the upper part of the locking module 5 is provided with a locking hook part 52 matched with the locking pin 6, when the mould is closed, the locking hook part 52 hooks the locking pin 6, and the opening of the locking hook part 52 faces away from the moving pull rod 4, namely the back part of the locking hook part 52 faces towards the moving pull rod 4. As shown in fig. 2 and 3, the movable tie bar 4 is cooperatively engaged with the locking module 5, and the moving up and down of the movable tie bar 4 causes the locking module 5 to swing around the rotating pin 51, specifically: the moving link 4 moves down to swing the locking hook portion 52 of the locking module 5 away from the locking pin 6, and the moving link 4 moves up to swing the locking hook portion 52 toward the locking pin 6. When the mold is opened, the lower mold plate 3 and the middle mold plate 2 are opened for the first time, so that the movable pull rod 4 moves downwards to drive the locking hook part 52 of the locking module 5 to be separated from the locking pin 6, and the upper mold plate 1 and the middle mold plate 2 can be opened for the second time.
As shown in fig. 4, the linkage and matching between the movable pull rod 4 and the mold locking member 5 are specifically realized by the following structure: the lower part of the movable tie bar 4 is fixed on the lower template 3, the upper part is formed with a first protrusion 41 protruding towards the locking module 5, the bottom of the first protrusion 41 is formed with a pushing inclined surface 42, the lower part of the locking module 5 is formed with a second protrusion 53 protruding towards the movable tie bar 4, and the top of the second protrusion 53 is formed with a matching inclined surface 54. When the mold is closed, the first projection 41 on the upper part of the movable tie bar 4 abuts against the back of the latch hook 52 on the upper part of the mold clamp 5, and the second projection 53 on the lower part of the mold clamp 5 abuts against the lower part of the movable tie bar 4. The downward movement of the movable rod 4 causes the pushing inclined surface 42 of the first protrusion 41 to abut against the mating inclined surface 54 of the second protrusion 53 and pushes the second protrusion 53 to swing together with the lower portion of the lock module 5 in a direction away from the movable rod 4, thereby causing the latch hook portion 52 to swing in the opposite direction to disengage the lock module pin 6.
The mold opening and closing assembly A further comprises a tension spring 7, the tension spring 7 is arranged on one side, far away from the movable pull rod 4, of the mold locking component 5, one end of the tension spring 7 is connected to the middle mold plate 2, the other end of the tension spring 7 is connected to the position, between the rotating pin 51 and the locking hook portion 52, of the mold locking component 5, and the tension spring 7 applies force to the mold locking component 5 to enable the locking hook portion 52 to always have the tendency of swinging towards the mold locking pin 6. The specific connection structure of the tension spring 7 is as follows: the outer side wall of the middle template 2 is provided with a fixed pin 21, the lock module 5 is provided with a hook part 55, and the hooks at the two ends of the tension spring 7 respectively hook the fixed pin 21 and the hook part 55.
In order to make the mold opening and closing process more stable, the mold opening and closing assemblies A are provided with four groups which are respectively arranged on two opposite sides of the injection mold, two groups are arranged on each side, and the two groups of mold opening and closing assemblies A on the same side are symmetrically arranged.
As shown in fig. 1-4, the working process of the mold opening sequence control mechanism of the present invention is as follows:
when the mold opening is started, the mold locking pin 6 is hooked by the lock hook part 52 of the mold locking part 5, the upper mold plate 1 and the middle mold plate 2 are locked and cannot be opened, the lower mold plate 3 moves downwards to perform the mold opening with the middle mold plate 2 for one time under the action of mold opening force, the movable pull rod 4 moves downwards along with the lower mold plate 3, after the lower mold plate 3 is opened to the set position, the first protrusion 41 of the movable pull rod 4 pushes the second protrusion 53 of the mold locking part 5 to swing together with the mold locking part 5 around the rotating pin 51, the lock hook part 52 on the upper part of the mold locking part 5 swings in the direction far away from the mold locking pin 6 until the mold locking pin 6 is separated, at the moment, the upper mold plate 1 and the middle mold plate 2 can be opened to perform the secondary mold opening, and the sequential mold opening action of the whole injection mold is realized. In the mold opening process, the tension spring 7 always applies force to the mold locking piece 5 to enable the lock hook part 52 to have the tendency of swinging towards the direction of the mold locking pin 6, and the mold locking piece 5 is prevented from being completely separated. When the die assembly is started, the upper die plate 1 and the middle die plate 2 are firstly closed, then the lower die plate 3 moves upwards to be closed with the middle die plate 2, the movable pull rod 4 moves upwards along with the lower die plate 3 to drive the die locking piece 5 to reset, the die locking hook part 52 swings towards the direction close to the die locking pin 6 until the die locking hook part 52 hooks the die locking pin 6 again, and the die assembly action is completed.
Finally, it is understood that various other changes and modifications can be made by those skilled in the art based on the technical idea of the present invention, and all such changes and modifications should fall within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides an injection mold die sinking sequence control mechanism, includes cope match-plate pattern, middle template and the lower bolster of can opening, compound die, its characterized in that: the mould locking device comprises a lower template, a middle template, at least one mould opening and closing assembly and a mould locking pin, wherein the middle template is fixedly arranged on the upper template; the middle part of the mold locking piece is rotationally connected to the middle template through a rotating pin, the upper part of the mold locking piece is provided with a mold locking hook part matched with the mold locking pin, and the mold locking pin is hooked by the mold locking hook part during mold closing; the movable pull rod is in linkage fit with the mold locking piece, the movable pull rod can cause the mold locking piece to swing around the rotating pin when moving up and down, the movable pull rod moves down to cause the lock hook part of the mold locking piece to swing towards the direction far away from the mold locking pin, and the movable pull rod moves up to cause the lock hook part to swing towards the direction close to the mold locking pin; when the mold is opened, the lower mold plate and the middle mold plate are opened for the first time, so that the movable pull rod moves downwards to drive the locking hook part of the locking module to be separated from the mold locking pin, and the upper mold plate and the middle mold plate can be opened for the second time.
2. The injection mold opening sequence control mechanism of claim 1, wherein: the mold opening and closing assembly further comprises a tension spring, one end of the tension spring is connected to the middle mold plate, the other end of the tension spring is connected to the lock mold piece, and the tension spring applies force to the lock mold piece to enable the lock hook portion of the lock mold piece to have a tendency of swinging towards the direction of the lock mold pin.
3. The mechanism for controlling the mold opening sequence of an injection mold according to claim 1, wherein: the lower part of the movable pull rod is fixed on the lower template, a first bulge protruding towards the direction of the mold locking piece is formed at the upper part of the movable pull rod, a second bulge protruding towards the direction of the movable pull rod is formed at the lower part of the mold locking piece, when the mold is closed, the first bulge at the upper part of the movable pull rod is abutted against the back of the lock hook part at the upper part of the mold locking piece, and the second bulge at the lower part of the mold locking piece is abutted against the lower part of the movable pull rod; the moving pull rod moves downwards to enable the first protrusion to push the second protrusion and the lower portion of the locking module to swing towards the direction far away from the moving pull rod, so that the locking hook portion swings reversely to be separated from the locking module pin.
4. The injection mold opening sequence control mechanism of claim 3, wherein: the bottom of the first bulge forms a pushing inclined plane, the top of the second bulge forms a matching inclined plane, and when the movable pull rod moves downwards, the pushing inclined plane is attached to the matching inclined plane and pushes the lower portion of the lock module to swing.
5. The injection mold opening sequence control mechanism according to claim 1 or 3, characterized in that: the opening of the locking hook part of the locking mould piece faces to the direction far away from the movable pull rod.
6. The injection mold opening sequence control mechanism of claim 2, wherein: the tension spring is arranged on one side of the mold locking piece, which is far away from the movable pull rod, and one end of the tension spring is connected to the position, between the rotating pin and the lock hook part, of the lock module.
7. The injection mold opening sequence control mechanism of claim 1, wherein: the mold opening and closing assemblies are provided with four groups and are respectively arranged on two opposite sides of the injection mold, two groups are arranged on each side, and the two groups of mold opening and closing assemblies on the same side are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222279973.6U CN218286603U (en) | 2022-08-30 | 2022-08-30 | Mold opening sequence control mechanism of injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222279973.6U CN218286603U (en) | 2022-08-30 | 2022-08-30 | Mold opening sequence control mechanism of injection mold |
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| CN218286603U true CN218286603U (en) | 2023-01-13 |
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| CN202222279973.6U Active CN218286603U (en) | 2022-08-30 | 2022-08-30 | Mold opening sequence control mechanism of injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119368612A (en) * | 2024-12-31 | 2025-01-28 | 河南祥瑞汽车部件有限公司 | A stamping device and stamping method for automobile parts |
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2022
- 2022-08-30 CN CN202222279973.6U patent/CN218286603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119368612A (en) * | 2024-12-31 | 2025-01-28 | 河南祥瑞汽车部件有限公司 | A stamping device and stamping method for automobile parts |
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