CN218749028U - Supplementary demoulding mechanism of front mould and injection mold - Google Patents
Supplementary demoulding mechanism of front mould and injection mold Download PDFInfo
- Publication number
- CN218749028U CN218749028U CN202222684322.5U CN202222684322U CN218749028U CN 218749028 U CN218749028 U CN 218749028U CN 202222684322 U CN202222684322 U CN 202222684322U CN 218749028 U CN218749028 U CN 218749028U
- Authority
- CN
- China
- Prior art keywords
- insert
- mold
- oblique
- mould
- front mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of mold, concretely relates to demoulding mechanism is assisted to front mould, demoulding mechanism is assisted to front mould sets up between front mould and back mould, sets up the elastic component through the bottom at the oblique fore-set of front mould, sets up the side of the oblique fore-set of front mould into the inclined plane, makes the oblique fore-set of front mould and the first inclined plane sliding connection of inserting to set up movable positioning mechanism between the oblique fore-set of front mould and the first inserting for the relative first sliding distance of inserting of the oblique fore-set of front mould. When the mold is opened, the elastic force of the elastic piece is released to eject the front mold oblique ejection column in the oblique direction of the oblique surface, the elastic piece is higher than the first insert and the second insert, and at the moment, an oblique clearance is formed between the groove in the top of the front mold oblique ejection column and the inverted position, so that the inverted position of a product is avoided for demolding, the reject ratio in the demolding process is obviously reduced, and the processing efficiency of the injection mold is improved.
Description
Technical Field
The utility model relates to an injection mold technical field, concretely relates to supplementary demoulding mechanism of front mould and injection mold.
Background
The injection-molded product is often provided with an inverted part, and under the conditions that the inverted part of the product is small, the requirement on the shape and size precision of the product is low, and the shape of the product cannot be damaged by forced ejection, demolding is usually performed by adopting a forced ejection demolding mode. But the forced ejection demoulding has the phenomena of unstable strain, abnormal assembly and the like in the actual production, so that the reject ratio of products reaches more than 20 percent, and further the problems of high production cost and low production efficiency of the products are caused. Consequently, for solving this type of product that has the back-off position and draw easily, warp the problem that leads to the defective rate high at drawing of patterns in-process, the utility model discloses add the supplementary demoulding mechanism of front mould on current mould, make the product can avoid the back-off position of product drawing of patterns smoothly at the drawing of patterns in-process.
Disclosure of Invention
In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a supplementary demoulding mechanism of front mould and injection mold.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a front mould auxiliary demoulding mechanism is arranged between a front mould and a rear mould, a product middle plate is arranged between the front mould and the front mould auxiliary demoulding mechanism, a mould cavity for product injection moulding is formed among the front mould, the product middle plate and the front mould auxiliary demoulding mechanism, a first insert is arranged below the product middle plate, a front mould oblique ejection column is embedded in the front end of the first insert, a second insert is arranged in the front end of the front mould oblique ejection column, and the top of the second insert is communicated with the mould cavity;
the bottom of the front mold oblique ejection column is provided with a slotted hole, an elastic piece is arranged in the slotted hole, one end face, close to a first insert, of the front mold oblique ejection column is an inclined plane, the first insert is connected with the front mold oblique ejection column in a sliding mode along the direction of the inclined plane, a movable positioning mechanism is arranged between the front mold oblique ejection column and the first insert and used for limiting the sliding distance of the front mold oblique ejection column relative to the first insert, a groove is formed in the top, far away from one end of the inclined plane, of the front mold oblique ejection column, and the groove is communicated with the die cavity to form a back-off position of a product.
Furthermore, the front end of the first insert is provided with a sliding groove for the front mold oblique ejection column to penetrate through from top to bottom, and the front mold oblique ejection column is embedded in the sliding groove in a sliding manner.
Furthermore, the movable positioning mechanism comprises a positioning pin, the positioning pin horizontally penetrates through the front mold oblique jacking column, the left side wall and the rear side wall of the first insert block correspond to the positioning pin and are provided with limiting holes, and the positioning pin slides up and down in the limiting holes.
Further, the slope inclination of the inclined top column of the front mould is 3 degrees.
Further, a first partition plate is arranged on the left side of the first insert, and a second partition plate is arranged on the right side of the first insert.
Furthermore, the first partition plate and the second partition plate are arranged below the middle plate of the product, and the front ends of the first partition plate and the second partition plate are connected with the second insert.
Furthermore, a first fixing plate is arranged on the left side of the first partition plate, a second fixing plate is arranged on the right side of the second partition plate, and the second insert is arranged between the first fixing plate and the second fixing plate.
Furthermore, a first insert pin sleeve is arranged between the first insert block and the first partition plate, a first insert pin penetrates through the first insert pin sleeve, and the upper end of the first insert pin extends into the die cavity and is used for forming a round hole in the bottom of a product.
Furthermore, a second insert pin sleeve is arranged in the second insert block, a second insert pin penetrates through the second insert pin sleeve, and the upper end of the second insert pin extends into the die cavity and is used for forming a notch at the bottom of a product.
The utility model also provides an injection mold, including foretell mould auxiliary demoulding mechanism with the front mould.
The beneficial effects of the utility model reside in that: the utility model discloses a demoulding mechanism and injection mold are assisted to front mould sets up to the inclined plane through the side with the oblique fore-set post, makes the oblique fore-set post and the first inclined plane sliding connection of inserting along, during the die sinking, elasticity release at the elastic component is ejecting the oblique fore-set post along inclined plane incline direction to be higher than the first and insert with the second, form the inclination clearance between the recess at the oblique fore-set post top of front mould this moment and the back-off position, thereby avoid the back-off position of product to carry out the drawing of patterns. Moreover, the sliding distance of the front die inclined ejection column relative to the first insert can be limited through the arrangement of the movable positioning mechanism. The front-mold auxiliary demolding mechanism is ingenious in structural design, smooth demolding of the back-off position of the product can be avoided through the structure, the reject ratio of the demolding process is remarkably reduced, and the processing efficiency of the injection mold is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a bottom view of the present invention;
FIG. 3 isbase:Sub>A schematic view of the cross-sectional A-A structure of FIG. 2;
FIG. 4 is a schematic view of the partial split structure of the present invention;
FIG. 5 is a schematic cross-sectional structure of a first insert, a front die inclined top column and a second insert in a die closing state;
FIG. 6 is an enlarged view of a portion of FIG. 5 at B;
FIG. 7 is a schematic cross-sectional structure of a first insert, a front mold oblique top column and a second insert in an open mold state;
fig. 8 is a partial enlarged view of fig. 7 at B.
The reference signs are: 1. a product middle plate; 2. producing a product; 3. a first insert; 4. a front mold inclined top column; 5. a second insert; 6. an elastic member; 7. a back-off position; 8. positioning pins; 9. a limiting hole; 10. a first separator; 11. a second separator; 12. a first fixing plate; 13. a second fixing plate; 14. a first insert pin sleeve; 15. a second pin insertion sleeve.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1 to 8, which are not intended to limit the present invention.
Examples
As shown in fig. 1 to 8, in the front mold auxiliary demolding mechanism provided in this embodiment, the front mold auxiliary demolding mechanism is disposed between a front mold and a rear mold, a product middle plate 1 is disposed between the front mold and the front mold auxiliary demolding mechanism, a mold cavity for injection molding of a product 2 is formed among the front mold, the product middle plate 1 and the front mold auxiliary demolding mechanism, a first insert 3 is disposed below the product middle plate 1, a front mold oblique supporting column 4 is embedded in a front end of the first insert 3, a second insert 5 is disposed in a front end of the front mold oblique supporting column 4, and a top of the second insert 5 is communicated with the mold cavity;
the bottom of the front mold oblique ejection column 4 is provided with a slotted hole, an elastic part 6 is arranged in the slotted hole, one end face, close to the first insert 3, of the front mold oblique ejection column 4 is an inclined plane, the first insert 3 is in sliding connection with the front mold oblique ejection column 4 along the inclined plane direction, a movable positioning mechanism is arranged between the front mold oblique ejection column 4 and the first insert 3 and used for limiting the sliding distance of the front mold oblique ejection column 4 relative to the first insert 3, a groove is arranged at the top of one end, far away from the inclined plane, of the front mold oblique ejection column 4, and the groove is communicated with the die cavity to form an inverted buckling position 7 of the product 2.
The supplementary demoulding mechanism of front mould's structural design is ingenious, sets up to the inclined plane through the side with front mould oblique ejection post 4, makes front mould oblique ejection post 4 and the first 3 edge inclined plane sliding connection of inserting, during the die sinking, elasticity release at elastic component 6 is ejecting with front mould oblique ejection post 4 along inclined plane incline direction to be higher than the first 3 and the second of inserting 5 of inserting, form the inclination clearance between the recess at front mould oblique ejection post 4 top and the back-off position 7 this moment, thereby avoid the back-off position 7 of product 2 to carry out the drawing of patterns. Furthermore, the sliding distance of the front mould inclined top column 4 relative to the first insert 3 can be limited through the arrangement of the movable positioning mechanism. When the die is closed, the elastic piece 6 and the front die inclined ejection column 4 are pressed to the initial position under the action of the rear die.
In this embodiment, the elastic member 6 is a spring, and the lower end of the elastic member 6 abuts against the rear mold by installing the spring in the slot at the bottom of the front mold lifter 4. When the die is closed, the spring is compressed in the slot under the action of the rear die; when the die is opened, the compressed spring is released and ejects the front die inclined ejection column 4, so that the back-off position 7 of the product 2 is avoided for demoulding, and the reject ratio of the demoulding process is obviously reduced.
Furthermore, the front end of the first insert 3 is provided with a sliding groove for the front mold slanted ejecting column 4 to penetrate up and down, and the front mold slanted ejecting column 4 is slidably embedded in the sliding groove. The sliding between the front die inclined ejection column 4 and the first insert 3 is stabilized through the arrangement of the sliding grooves.
Further, the movable positioning mechanism comprises a positioning pin 8, the positioning pin 8 horizontally penetrates through the front mold oblique ejection column 4, the left side wall and the rear side wall of the first insert 3 correspond to the positioning pin 8 and are provided with a limiting hole 9, and the positioning pin 8 slides up and down in the limiting hole 9. Specifically, when the front mold slanted ejecting column 4 is ejected upwards under the elastic force of the elastic member 6, the positioning pin 8 slides upwards along with the front mold slanted ejecting column 4 to the upper end of the limiting hole 9, so that the maximum distance for the front mold slanted ejecting column 4 to be ejected upwards is limited; when the front mold inclined ejection column 4 returns downwards under the action of the rear mold and the elastic piece 6, the positioning pin 8 slides downwards to the lower end of the limiting hole 9, namely returns to the initial position.
Further, the slope of the inclined top column 4 of the front mould is 3 degrees. Set up to the inclined plane through the terminal surface with the oblique post-jacking of front mould 4, make elastic component 6 pop out the oblique post-jacking of front mould 4 along the inclined plane direction, form the inclination clearance between recess and the back-off position 7 at the oblique post-jacking of front mould 4 top this moment to the back-off position 7 of avoiding product 2 carries out the drawing of patterns.
Further, a first partition plate 10 is arranged on the left side of the first insert 3, and a second partition plate 11 is arranged on the right side of the first insert 3.
Further, the first partition board 10 and the second partition board 11 are both arranged below the middle board 1 of the product, and the front ends of the first partition board 10 and the second partition board 11 are both connected with the second insert 5.
Further, a first fixing plate 12 is disposed on the left side of the first partition plate 10, a second fixing plate 13 is disposed on the right side of the second partition plate 11, and the second insert 5 is disposed between the first fixing plate 12 and the second fixing plate 13.
Further, a first insert pin sleeve 14 is arranged between the first insert block 3 and the first partition plate 10, a first insert pin penetrates through the first insert pin sleeve 14, and the upper end of the first insert pin extends into the die cavity and is used for forming a round hole in the bottom of the product 2.
Further, a second insert pin sleeve 15 is arranged in the second insert block 5, a second insert pin penetrates through the second insert pin sleeve 15, and the upper end of the second insert pin extends into the die cavity and is used for forming a notch at the bottom of the product 2.
In this embodiment, the lower extreme of first inlay needle and second inlay the needle all is connected with the back mould, and during the compound die, the upper end of first inlay needle and second inlay the needle respectively stretches into the die cavity for round hole and the scarce groove of 2 bottoms of shaping product when moulding plastics.
The above-mentioned embodiment does the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, do not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of thinking.
Claims (10)
1. The utility model provides a supplementary demoulding mechanism of front mould which characterized in that: the front mould auxiliary demoulding mechanism is arranged between a front mould and a rear mould, a product middle plate (1) is arranged between the front mould and the front mould auxiliary demoulding mechanism, a mould cavity for injection moulding of a product (2) is formed among the front mould, the product middle plate (1) and the front mould auxiliary demoulding mechanism, a first insert (3) is arranged below the product middle plate (1), a front mould oblique jacking column (4) is embedded at the front end of the first insert (3), a second insert (5) is arranged at the front end of the front mould oblique jacking column (4), and the top of the second insert (5) is communicated with the mould cavity;
the structure is characterized in that a slotted hole is formed in the bottom of the front mold oblique ejection column (4), an elastic piece (6) is arranged in the slotted hole, one end face, close to a first insert (3), of the front mold oblique ejection column (4) is an inclined plane, the first insert (3) is in sliding connection with the front mold oblique ejection column (4) along the inclined plane direction, a movable positioning mechanism is arranged between the front mold oblique ejection column (4) and the first insert (3), the movable positioning mechanism is used for limiting the sliding distance of the front mold oblique ejection column (4) relative to the first insert (3), a groove is formed in the top, far away from one end of the inclined plane, of the front mold oblique ejection column (4), and the groove is communicated with a die cavity to form an inverted buckling position (7) of a product (2).
2. A front mold auxiliary mold releasing mechanism according to claim 1, characterized in that: the front end of the first insert (3) is provided with a sliding groove for the front mold oblique jacking column (4) to penetrate through from top to bottom, and the front mold oblique jacking column (4) is embedded in the sliding groove in a sliding manner.
3. A front mold auxiliary mold releasing mechanism according to claim 2, characterized in that: the movable positioning mechanism comprises a positioning pin (8), the positioning pin (8) horizontally penetrates through the front mold oblique jacking column (4), the left side wall and the rear side wall of the first insert (3) correspond to the positioning pin (8) and are provided with limiting holes (9), and the positioning pin (8) slides up and down in the limiting holes (9).
4. A front mold auxiliary ejector mechanism according to claim 1, characterized in that: the slope inclination of the front mould oblique top column (4) is 3 degrees.
5. A front mold auxiliary ejector mechanism according to claim 1, characterized in that: a first partition plate (10) is arranged on the left side of the first insert (3), and a second partition plate (11) is arranged on the right side of the first insert (3).
6. A front mold auxiliary ejector mechanism according to claim 5, characterized in that: the first partition plate (10) and the second partition plate (11) are arranged below the middle plate (1) of the product, and the front ends of the first partition plate (10) and the second partition plate (11) are connected with the second insert (5).
7. A front mold auxiliary ejector mechanism according to claim 6, characterized in that: the left side of the first partition plate (10) is provided with a first fixing plate (12), the right side of the second partition plate (11) is provided with a second fixing plate (13), and the second insert (5) is arranged between the first fixing plate (12) and the second fixing plate (13).
8. A front mold auxiliary ejector mechanism according to claim 6, characterized in that: a first insert pin sleeve (14) is arranged between the first insert block (3) and the first partition plate (10), a first insert pin penetrates through the first insert pin sleeve (14), and the upper end of the first insert pin extends into the die cavity and is used for forming a round hole in the bottom of the product (2).
9. A front mold auxiliary mold releasing mechanism according to claim 1, characterized in that: a second insert pin sleeve (15) is arranged in the second insert block (5), a second insert pin penetrates through the second insert pin sleeve (15), and the upper end of the second insert pin extends into the die cavity and is used for forming a notch at the bottom of the product (2).
10. An injection mold, its characterized in that: comprising a front mold auxiliary demolding mechanism for a mold according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222684322.5U CN218749028U (en) | 2022-10-12 | 2022-10-12 | Supplementary demoulding mechanism of front mould and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222684322.5U CN218749028U (en) | 2022-10-12 | 2022-10-12 | Supplementary demoulding mechanism of front mould and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218749028U true CN218749028U (en) | 2023-03-28 |
Family
ID=85698758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222684322.5U Active CN218749028U (en) | 2022-10-12 | 2022-10-12 | Supplementary demoulding mechanism of front mould and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218749028U (en) |
-
2022
- 2022-10-12 CN CN202222684322.5U patent/CN218749028U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218749028U (en) | Supplementary demoulding mechanism of front mould and injection mold | |
| CN218366270U (en) | Injection mold capable of realizing rapid demolding | |
| CN219095799U (en) | Injection mold with secondary ejection mechanism | |
| CN216992904U (en) | Fixed die inclined ejection mechanism of injection mold | |
| CN213860529U (en) | Side-inclined elastic block sliding demoulding mechanism | |
| CN212920279U (en) | Secondary ejection type die | |
| CN113752493A (en) | Cross inclined-ejection reverse-buckling-removing mechanism of injection mold | |
| CN212764532U (en) | Rear die with slide and shovel base | |
| CN212764601U (en) | Secondary ejection mechanism with single ejector plate combination | |
| CN220163104U (en) | Forming structure of plastic part with deep cavity | |
| CN219236048U (en) | Ejection structure of die product | |
| CN219405261U (en) | Female die core-pulling mechanism of multi-cavity material reducing head | |
| CN218928481U (en) | Injection mold of impeller | |
| CN213618145U (en) | High-precision mold with anti-sticking front mold ejection structure | |
| CN221249726U (en) | Sliding block ejection demolding structure | |
| CN214491429U (en) | Segmentation delay ejection structure | |
| CN216992905U (en) | Inner cavity reverse-buckling position demoulding mechanism of injection mould and injection mould thereof | |
| CN221339362U (en) | Strong push-off die | |
| CN217704431U (en) | Forced demoulding type injection molding structure | |
| CN218139701U (en) | Slide thimble device | |
| CN220499841U (en) | Electronic connector push pedal secondary strong demoulding tool structure | |
| CN219820360U (en) | Forming and ejecting structure for large-size arc-shaped plastic part | |
| CN217968197U (en) | Injection mold with ejection mechanism | |
| CN219028340U (en) | Mould with inclined hole core-pulling mechanism | |
| CN110370509B (en) | Automatic ejection and release die structure for precise annular part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |