CN214820520U - Injection molding back-off shedder - Google Patents
Injection molding back-off shedder Download PDFInfo
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- CN214820520U CN214820520U CN202120311436.8U CN202120311436U CN214820520U CN 214820520 U CN214820520 U CN 214820520U CN 202120311436 U CN202120311436 U CN 202120311436U CN 214820520 U CN214820520 U CN 214820520U
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Abstract
The utility model discloses an injection molding piece back-off demoulding device, which comprises a back-off core, an ejector block, a fixed plate, an ejector plate and a connecting block, wherein the fixed plate is provided with an ejector hole, and a push rod of an injection molding machine passes through the ejector hole to push the ejector plate to move towards a female die; the ejector pin plate is provided with a yielding hole, a cushion block fastened in the fixed plate is arranged in the yielding hole, and one surface of the cushion block, which is opposite to the fixed plate, is an inclined surface; the jacking block is obliquely arranged in the abdicating hole and is attached to the inclined surface; the connecting end of the inverted core is fixed in the top block; an inclined guide pillar is arranged in the cushion block, and a guide sleeve matched with the guide pillar is arranged in the top block; the side of the ejector block is provided with a square connecting block by a pin shaft, and a square guide groove matched with the square connecting block is arranged in the ejector plate. The utility model discloses a cooperation of cushion and kicking block becomes the ejecting direction of slope with the ejecting direction change of the level of thimble board, will push up to one side and install in the kicking block of slope, just can realize the slope drawing of patterns of back-off smoothly.
Description
Technical Field
The utility model belongs to the technical field of injection mold, especially injection molding back-off shedder.
Background
The injection molding of outward appearance class is higher to the surface requirement of outward appearance, requires that the master model can the demolding when the mould is opened, if the inside of injection molding has the back-off, then these back-offs just need to be left in the male mold. In the injection mold design industry, a pitched roof demolding mechanism is generally adopted for the back-off which is left in the male mold to complete the demolding of the back-off.
The ejector rod of the injection molding machine is horizontally arranged, so that the direction of ejecting the ejector plate by the ejector rod is also horizontal, and if the whole demolding direction of the injection molding part is inclined, the traditional inclined ejection demolding mechanism cannot complete inverted demolding on the basis of inclined demolding.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the inverted buckle demoulding device can realize inclined demoulding on inverted buckles.
In order to achieve the above purpose, the utility model provides a technical scheme as follows:
a back-off demoulding device for injection molding parts comprises a back-off mould core, an ejector block, a fixing plate, an ejector plate and a connecting block, wherein an ejector hole is formed in the fixing plate, and a push rod of an injection molding machine penetrates through the ejector hole to push the ejector plate to move towards a female mould; the ejector pin plate is provided with a yielding hole, a cushion block fastened in the fixed plate is arranged in the yielding hole, and one surface of the cushion block, which is opposite to the fixed plate, is an inclined surface; the jacking block is obliquely arranged in the abdicating hole and is attached to the inclined surface; the connecting end of the inverted core is fixed in the top block; an inclined guide pillar is arranged in the bottom plate, and a guide sleeve matched with the guide pillar is arranged in the cushion block; the side of the ejector block is provided with a square connecting block by a pin shaft, and a square guide groove matched with the square connecting block is arranged in the ejector plate.
In this technical scheme, the ejector plate is released to the master model to the push rod of injection molding machine, and kicking block and back-off core move to the direction of keeping away from the back-off under the pulling of square connecting block and guide pillar, have realized the drawing of patterns of back-off.
Compared with the prior art, the utility model discloses following beneficial effect has: through the cooperation of the cushion block and the ejector block, the horizontal ejection direction of the ejector pin plate is changed into the inclined ejection direction, the inclined ejector is installed on the inclined ejector block, and the inclined demolding of the reverse buckle can be smoothly realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
FIG. 1 is a cross-sectional view of an injection molded part;
FIG. 2 is a view showing a mold clamping state of the injection mold;
FIG. 3 is a view showing an open state of the injection mold;
FIG. 4 is a schematic view of a back-off stripper arrangement for a male mold.
The reference numerals in the figures are:
21-male template, 22-male mold core, 23-male mold lining plate, 24-ejector plate, 25-fixing plate, 251-top hole, 241-abdicating hole, 26-top block, 27-inverted core, 29-guide column, 40-cushion block, 50-guide sleeve, 60-square connecting block and 70-square guide groove.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Examples
Please refer to fig. 1, in which a reverse buckle a is disposed and limited by an inclined stud B, the overall demolding direction of the product is inclined.
The injection mould shown in figures 2 and 3 is used to form the article of figure 1 and comprises a female mould 10 and a male mould 20, the female mould being opened and the article 30 being left in the male mould. Referring to fig. 4, the male mold comprises a male mold plate 21, a male mold core 22, a male mold liner plate 23, an ejector plate 24 and a fixing plate 25, wherein an ejector hole 251 is formed in the fixing plate 25, and a push rod of the injection molding machine penetrates through the ejector hole 251 to push the ejector plate 24 to move towards the female mold. The ejector plate 24 is provided with a yielding hole 241, a cushion block 40 fastened in the fixing plate 25 is arranged in the yielding hole 241, and one surface of the cushion block, which is opposite to the fixing plate 25, is an inclined surface; the top block is obliquely arranged in the abdicating hole 241, and the top block 26 is attached to the inclined surface; the connecting end of the back-off core 27 is fixed in the top block and the forming end is inserted into the core insert. The cushion block 40 is provided with an inclined guide post 29, and the top block 26 is provided with a guide sleeve 50 matched with the guide post. Preferably, the ejector block comprises an upper ejector block and a lower ejector block, and the guide sleeve is arranged between the upper ejector block and the lower ejector block. The lateral surface of the ejector block is provided with a square connecting block 60 by a pin shaft, and a square guide groove 70 matched with the square connecting block is arranged in the ejector plate 24. After the mold is opened, the ejector plate 24 is pushed out to the female mold by a push rod of the injection molding machine, the ejector block moves obliquely towards the female mold under the pulling of the square connecting block and the guide pillar, and the ejector block drives the mold core reverse buckle to move obliquely towards the direction far away from the reverse buckle, so that the reverse buckle demolding is realized.
Compared with the prior art, the utility model discloses following beneficial effect has: through the cooperation of cushion and kicking block, become the ejecting direction of slope with the horizontal ejecting direction of thimble board, install the back-off core in the kicking block of slope, just can realize the slope drawing of patterns of back-off smoothly.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. An injection molding piece back-off demoulding device is characterized by comprising a back-off mold core, an ejector block, a fixing plate, an ejector plate and a connecting block, wherein an ejector hole is formed in the fixing plate, and a push rod of an injection molding machine penetrates through the ejector hole to push the ejector plate to move towards a female mold; the ejector pin plate is provided with a yielding hole, a cushion block fastened in the fixed plate is arranged in the yielding hole, and one surface of the cushion block, which is opposite to the fixed plate, is an inclined surface; the jacking block is obliquely arranged in the abdicating hole and is attached to the inclined surface; the connecting end of the inverted core is fixed in the top block; an inclined guide pillar is arranged in the cushion block, and a guide sleeve matched with the guide pillar is arranged in the ejector block; the side of the ejector block is provided with a square connecting block by a pin shaft, and a square guide groove matched with the square connecting block is arranged in the ejector plate.
2. The injection molding piece back-off mold release device of claim 1, wherein the top block comprises an upper top block and a lower top block, and the guide sleeve is arranged between the upper top block and the lower top block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311436.8U CN214820520U (en) | 2021-02-03 | 2021-02-03 | Injection molding back-off shedder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311436.8U CN214820520U (en) | 2021-02-03 | 2021-02-03 | Injection molding back-off shedder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214820520U true CN214820520U (en) | 2021-11-23 |
Family
ID=78880908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120311436.8U Active CN214820520U (en) | 2021-02-03 | 2021-02-03 | Injection molding back-off shedder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214820520U (en) |
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2021
- 2021-02-03 CN CN202120311436.8U patent/CN214820520U/en active Active
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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: No. 12, Xinde Road, Zhangpu Town, Kunshan City, Suzhou City, Jiangsu Province, 215000 Patentee after: Kunshan Lingsheng New Technology Co., Ltd. Address before: 215000 No.188 hengguanjing Road, Zhangpu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Kunshan baodeqiang Mould Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address |