CN212045809U - Secondary ejection mechanism of injection mold - Google Patents
Secondary ejection mechanism of injection mold Download PDFInfo
- Publication number
- CN212045809U CN212045809U CN201922496254.8U CN201922496254U CN212045809U CN 212045809 U CN212045809 U CN 212045809U CN 201922496254 U CN201922496254 U CN 201922496254U CN 212045809 U CN212045809 U CN 212045809U
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- straight
- straight ejector
- block
- semicircular groove
- kicking block
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Abstract
The utility model relates to an injection mold's secondary ejection mechanism, including the thimble board, the thimble board is connected with first straight kicking block through straight ejector pin, the side below of first straight kicking block is equipped with the straight kicking block of second, the head system of the straight kicking block of second has the fashioned shaping portion of messenger's product back-off, the straight kicking block lower part of second with straight ejector pin is hugged closely and the level system has the through-hole, it is equipped with the loose pin to slide in the through-hole, the both ends of loose pin all are the hemisphere, the system has first semicircle groove on the corresponding side of straight ejector pin, the straight kicking block of second is kept away from one side of straight ejector pin still is equipped with the stopper, the stopper is fixed on the movable mould and is hugged closely the straight kicking block of second, the system has the second semicircle groove on. The utility model discloses simple structure realizes that the secondary is ejecting through setting up the straight kicking block of second to make the stable drawing of patterns of product back-off, improve production efficiency.
Description
Technical Field
The utility model relates to an injection mold's secondary ejection mechanism belongs to injection mold technical field.
Background
In the working process of the injection mold, the condition that the product is inverted often occurs, the inverted buckle increases the difficulty of demolding, the inverted buckle is easy to damage due to direct ejection, demolding failure is caused, and the yield of the product is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming of prior art, provide an injection mold's secondary ejection mechanism.
For realizing the purpose the utility model adopts the technical proposal that:
the secondary ejection mechanism of the injection mold comprises an ejector plate, wherein the ejector plate is connected with a first straight ejector block through a straight ejector rod, a second straight ejector block is arranged below the side of the first straight ejector block, a forming part for forming product back-off is formed at the head part of the second straight ejector block, a through hole is tightly attached to the lower part of the second straight ejector block and the straight ejector rod and horizontally formed in the lower part of the second straight ejector block, a movable pin is arranged in the through hole in a sliding manner, the two ends of the movable pin are hemispherical, a first semicircular groove is formed in the corresponding side surface of the straight ejector rod, a limiting block is further arranged on one side, away from the straight ejector rod, of the second straight ejector block, the limiting block is fixed on a movable mold and tightly attached to the second straight ejector block, a second semicircular groove is formed in one side surface of the limiting block, the first semicircular groove and the second semicircular groove are oppositely arranged, and the first semicircular groove is positioned below, when the die is closed, one end of the movable pin is positioned in the first semicircular groove, and the other end of the movable pin is abutted to the limiting block.
As a further optimization of the above technical solution: and when the die is closed, the horizontal plane where the highest point of the through hole is just coplanar with the horizontal plane where the lowest point of the second semicircular groove is.
Compared with the prior art, the utility model discloses simple structure realizes that the secondary is ejecting through setting up the straight kicking block of second to make the stable drawing of patterns of product back-off, improve production efficiency.
Drawings
Fig. 1 is a schematic sectional structure diagram of the mold closing state 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, the secondary ejection mechanism of the injection mold comprises an ejector plate 5, wherein the ejector plate 5 is connected with a first straight ejector block 1 through a straight ejector rod 4, a second straight ejector block 2 is arranged below the side of the first straight ejector block 1, a forming part 21 for forming the product in a back-off manner is formed at the head of the second straight ejector block 2, a through hole 22 is formed at the lower part of the second straight ejector block 2 and the straight ejector rod 4 in a clinging manner and horizontally formed, a movable pin 3 is arranged in the through hole 22 in a sliding manner, both ends of the movable pin 3 are hemispherical, a first semicircular groove is formed on the corresponding side surface of the straight ejector rod 4, a limit block 6 is further arranged on one side of the second straight ejector block 2 far away from the straight ejector rod 4, the limit block 6 is fixed on a movable mold and clings to the second straight ejector block 2, a second semicircular groove 61 is formed on one side surface of the limit block 6, the first semicircular groove and the second semicircular groove, and the first semicircular groove is positioned below the second semicircular groove 61, one end of the movable pin 3 is positioned in the first semicircular groove when the die is closed, and the other end of the movable pin is abutted against the limiting block 6.
In the above technical scheme: when the die is closed, the horizontal plane of the highest point of the through hole 22 is just coplanar with the horizontal plane of the lowest point of the second semicircular groove 61. The distance enables the reverse buckle on the second straight ejection block 2 to be completely separated from the movable die insert during primary ejection, and stable ejection can be guaranteed during secondary ejection.
In the above technical scheme: the contact surface between the first straight ejecting block 1 and the second straight ejecting block 2 is made into a step shape, so that the first straight ejecting block 1 and the second straight ejecting block 2 can be better positioned during mold closing, and the first straight ejecting block 1 and the second straight ejecting block 2 are prevented from not resetting in place during mold closing to cause failure in injection molding.
The utility model discloses an operating process is as follows, and the one end of activity round pin 3 is located first half slot during the compound die, and the other end is inconsistent with the left surface of stopper 6, and activity round pin 3 is located the below of second half slot 61 to the horizontal plane at 3 peaks of activity round pin place just with the horizontal plane coplane at 61 lowest points of second half slot, begin to mould plastics. After the injection molding is finished, the product wraps the forming part 21 of the second straight ejecting block 2. The movable mould starts to be separated, the ejector plate 5 drives the first straight ejector block 1 to perform ejection motion through the straight ejector rod 4, and the movable pin 3 is connected between the second straight ejector block 2 and the straight ejector rod 4, so that the second straight ejector block 2 also performs ejection motion along with the straight ejector rod 4, and a product is gradually separated from the movable mould insert in the process. Until one end of the movable pin 3 is separated from the first semicircular groove, the other end of the movable pin slides into the second semicircular groove 61, at the moment, the second straight ejector block 2 is disconnected from the straight ejector rod 4, the first straight ejector block 1 continues to perform ejection movement, the second straight ejector block 2 stops moving, accordingly, the back-off gradually separates from the forming part 21, and finally, the product is taken away to complete an injection molding cycle.
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 should fall into the protection scope of the utility model, the technical scheme that the design of this technical field technical personnel according to the utility model can be obtained through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into.
Claims (2)
1. A secondary ejection mechanism of an injection mold comprises an ejector plate (5), wherein the ejector plate (5) is connected with a first straight ejector block (1) through a straight ejector rod (4), the secondary ejection mechanism is characterized in that a second straight ejector block (2) is arranged below the side of the first straight ejector block (1), a forming part (21) for forming product back-off is formed in the head part of the second straight ejector block (2), a through hole (22) is formed in the lower part of the second straight ejector block (2) and the straight ejector rod (4) in a clinging and horizontal mode, a movable pin (3) is arranged in the through hole (22) in a sliding mode, the two ends of the movable pin (3) are hemispherical, a first semicircular groove is formed in the corresponding side surface of the straight ejector rod (4), a limiting block (6) is further arranged on one side, far away from the straight ejector rod (4), of the second straight ejector block (2), the limiting block (6) is fixed on a movable mold and clings to the second straight ejector, a second semicircular groove (61) is formed in one side face of the limiting block (6), the first semicircular groove and the second semicircular groove (61) are arranged oppositely, the first semicircular groove is located below the second semicircular groove (61), one end of the movable pin (3) is located in the first semicircular groove during die assembly, and the other end of the movable pin is abutted to the limiting block (6).
2. The secondary ejection mechanism of an injection mold according to claim 1, wherein the horizontal plane of the highest point of the through hole (22) is just coplanar with the horizontal plane of the lowest point of the second half-slot (61) when closing the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922496254.8U CN212045809U (en) | 2019-12-31 | 2019-12-31 | Secondary ejection mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922496254.8U CN212045809U (en) | 2019-12-31 | 2019-12-31 | Secondary ejection mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212045809U true CN212045809U (en) | 2020-12-01 |
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ID=73535487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922496254.8U Active CN212045809U (en) | 2019-12-31 | 2019-12-31 | Secondary ejection mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212045809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111113823A (en) * | 2019-12-31 | 2020-05-08 | 台州市黄岩西诺模具有限公司 | Secondary ejection mechanism of injection mold |
-
2019
- 2019-12-31 CN CN201922496254.8U patent/CN212045809U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111113823A (en) * | 2019-12-31 | 2020-05-08 | 台州市黄岩西诺模具有限公司 | Secondary ejection mechanism of injection mold |
| CN111113823B (en) * | 2019-12-31 | 2021-12-10 | 台州市黄岩西诺模具有限公司 | Secondary ejection mechanism of injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 318020 No. 369 Xinjiang Road, Xinqian Street, Huangyan, Taizhou City, Zhejiang Province Patentee after: Zhejiang Xinuo Mold Co.,Ltd. Address before: 318020 no.369, Xinjiang road, Xinqian street, Huangyan District, Taizhou City, Zhejiang Province Patentee before: Taizhou Huangyan Sino Mould Co.,Ltd. |
|
| CP03 | Change of name, title or address |