CN212666594U - Injection mold provided with demolding mechanism - Google Patents
Injection mold provided with demolding mechanism Download PDFInfo
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- CN212666594U CN212666594U CN202020566200.4U CN202020566200U CN212666594U CN 212666594 U CN212666594 U CN 212666594U CN 202020566200 U CN202020566200 U CN 202020566200U CN 212666594 U CN212666594 U CN 212666594U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000002347 injection Methods 0.000 title claims abstract description 22
- 239000007924 injection Substances 0.000 title claims abstract description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 description 3
- 238000007723 die pressing method Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002026 carminative effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention relates to an injection mold with a demolding mechanism, which comprises a movable mold and a fixed mold, wherein the movable mold is connected with a movable mold base plate, an insert is fixed on one side of the movable mold base plate, which faces the movable mold, a mold cavity is formed between the movable mold and the fixed mold, one end of the insert is connected with the movable mold base plate, the other end of the insert extends to the mold cavity and is used for molding an injection molding product, the movable mold and the movable mold base plate are connected through a shutter, a drag hook mechanism is arranged between the movable mold and the fixed mold, the drag hook mechanism comprises a drag hook base arranged on the movable mold and a fixed mold drag hook arranged on the fixed mold, a first through hole is arranged on the drag hook base, the first end of the fixed mold drag hook is fixed on the fixed mold, the second end of the. The mold is provided with the demolding mechanism, so that the movable mold, the fixed mold and the movable mold base plate can be relatively separated under specific conditions, and the insert is further separated from the deep cavity structure of the injection molding product.
Description
Technical Field
The invention relates to an injection mold, in particular to an injection mold with a demolding mechanism.
Background
Have highly darker and the less deep cavity structure of size to injection moulding product, generally do the mold insert and reach product shaping and mould carminative effect, use the darker cavity structure of mold insert shaping structure, deep cavity structure injection moulding product blocks easily and dies in shaping mold insert and causes the drawing of patterns difficulty to be unfavorable for product stable production. And the manual demoulding is adopted, so that the production efficiency is extremely low, the effect is not obvious, and the appearance of the product is easily damaged.
Disclosure of Invention
The invention aims to provide an injection mold capable of facilitating demolding of a deeper cavity structure and an insert.
In order to achieve the purpose, the invention adopts the technical scheme that: an injection mold provided with a demolding mechanism comprises a movable mold and a fixed mold, wherein the movable mold is connected with a movable mold base plate, an insert is fixed on one side of the movable mold base plate, which faces the movable mold, a mold cavity is formed between the movable mold and the fixed mold, one end of the insert is connected with the movable mold base plate, the other end of the insert extends to the mold cavity and is used for molding an injection molding product, the movable mold and the movable mold base plate are connected through a shutter, a drag hook mechanism is arranged between the movable mold and the fixed mold, the drag hook mechanism comprises a drag hook base arranged on the movable mold and a fixed mold drag hook arranged on the fixed mold, a first through hole is arranged on the drag hook base, the first end of the fixed mold drag hook is fixed on the fixed mold, a second end of the fixed mold drag hook penetrates through the first through hole, a limiting part for separating the fixed mold, during the die sinking, the movable mould is kept away from the cover half, the cover half drag hook is followed first through-hole slides to spacing portion, the cover half passes through drag hook mechanism is held the movable mould, the unblock of shutter, movable mould backing plate and movable mould separation.
Furthermore, the insert is fixed on the movable die base plate through the movable die pressing plate, the movable die pressing plate is embedded on the movable die base plate, and the movable die pressing plate is connected with the movable die base plate in an assembling mode.
Further, the drag hook mechanism further comprises a movable mold drag hook arranged on the movable mold backing plate, a second through hole is formed in the drag hook base, the first end of the movable mold drag hook is fixed on the movable mold backing plate, the second end of the movable mold drag hook penetrates through the second through hole, and the first through hole and the second through hole are axially identical.
Further, the drag hook base includes base body and the bullet piece mechanism of setting in base body, bullet piece mechanism includes bullet piece and elastic component be provided with the cavity on the drag hook base, bullet piece passes through elastic component elasticity and sets up in the cavity, the elasticity direction of bullet piece with the die sinking direction is perpendicular, be provided with the third through-hole on the bullet piece, be provided with the fourth through-hole on the base body, the cover half drag hook passes third through-hole and fourth through-hole extend to the opposite side of drag hook base.
Further, one end of the elastic block is connected with the inner wall of the cavity through an elastic piece, and the other end of the elastic block extends to the second through hole and is abutted to the movable mold drag hook.
Further the elastic piece is a spring, and the elastic direction of the spring is perpendicular to the sliding direction of the draw hook.
The aperture of the third through hole and the fourth through hole is larger than or equal to the width of the limiting part.
The movable mould drag hook is characterized in that the movable mould drag hook side wall is provided with a sliding table, the sliding table protrudes out of the side wall of the movable mould drag hook, the sliding table is connected with the side wall of the movable mould drag hook through a slope, the sliding table protrudes out of the side wall, the width of the side wall is larger than or equal to that of the limiting part protrudes out of the width of the positioning drag hook.
Further the die sinking direction is the first direction, the cavity set up the direction with elastic block elastic direction is the second direction, the slip table with spacing portion is protruding respectively on the second direction the movable mould drag hook with the cover half drag hook, and the slip table is protruding on the second direction the width of movable mould drag hook is more than or equal to spacing portion protrusion the width of cover half drag hook.
Furthermore, the sliding table and the limiting part are arranged on one side of the corresponding draw hook facing the elastic part.
The beneficial effects produced by the invention comprise: the mold can realize the relative separation among the movable mold, the fixed mold and the movable mold base plate in the demolding process, and further separates the insert from the deep cavity structure of the injection molding product.
Drawings
FIG. 1 is a schematic view of the structure of an injection mold according to the present invention;
FIG. 2 is a cross-sectional view of an injection mold of the present invention;
FIG. 3 is a cross-sectional view of the retractor mechanism of the present invention;
FIG. 4 is a cross-sectional view of the drag hook mechanism of the present invention with the stationary mold drag hook removed;
FIG. 5 is a schematic view of the base of the retractor of the present invention;
FIG. 6 is a schematic view of the structure of the spring block and the retractor of the present invention;
FIG. 7 is a schematic view of a spacing pin according to the present invention;
FIG. 8 illustrates the connection between the injection-molded article and the insert according to the present invention;
in the figure, the device comprises a fixed die 1, a fixed die 2, a movable die 3, a movable die backing plate 4, a shutter 5, a draw hook base 501, a base body 502, an elastic block 503, a spring 6, a movable die draw hook 601, a first end 602, a second end 603, a sliding table 604, a slope surface 7, a fixed die draw hook 701, a first end 702, a second end 703, a limiting part 8, an insert 9, an injection molding product 901, a deep cavity structure 10, a movable die core 11, a first through hole 12, a second through hole 13, a third through hole 14, a fourth through hole 15, a bottom plate 16, an insert base 17, a cavity 18, a limiting pin 19 and a limiting cavity.
Detailed Description
The present invention is explained in further detail below with reference to the drawings and the specific embodiments, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
As shown in fig. 1, 2 and 8, the injection mold of the invention comprises a movable mold 2, a fixed mold 1 and a movable mold backing plate 3, wherein the movable mold 2 is connected with the movable mold backing plate 3 through a shutter 4, the movable mold backing plate 3 is fixed on a bottom plate 15, an insert 8 is arranged on the movable mold backing plate 3 through an insert base 16, the insert base 16 is assembled on the movable mold backing plate 3, one end of the insert 8 is integrally formed with the insert base 16, the other end of the insert passes through the movable mold 2 and extends to a mold cavity, the mold cavity is formed by the movable mold 2 and the fixed mold 1, one end of the insert 8, which is far away from the insert base 16, is used for forming a deep cavity structure 901 of an injection molding product 9, the insert 8 is embedded in the deep cavity structure 901 of.
As shown in fig. 3-6, in order to facilitate the mold release of the insert 8 from the deep cavity structure of the injection molded product, a mold release mechanism is disposed on the injection mold, the mold release mechanism includes the above-mentioned shutter 4 and a hook mechanism, the shutter 4 is specifically a wheel-type mold locking buckle, the hook mechanism includes a fixed mold hook 7, a movable mold hook 6 and a hook base 5, the hook base 5 includes a base body 501 and a spring block 502 mechanism, the base body 501 is fixed on the movable mold 2 by bolts, a cavity 17 is disposed in the base body 501, the spring block 502 mechanism is disposed in the cavity 17, the spring block 502 mechanism includes an elastic member, specifically a spring 503, and may also be another elastic member capable of realizing extension and contraction, the cavity 17 has a cylindrical structure, the spring block 502 is a cylindrical body provided with a third through hole 13, the cylindrical body may be a rectangular column or a cylinder, an outer wall of the cylindrical body is slidably connected with an inner wall of the cavity 17, the third through hole 13, the penetrating direction of the third through hole 13 is a first direction, the axial direction of the cavity 17 is a second direction, the first direction is perpendicular to the second direction, the elastic direction of the spring 503 is consistent with the second direction, the elastic block 502 slides along the cavity 17 in the second direction under the action of the spring 503, the base body 501 is provided with a second through hole 12 and a fourth through hole 14 which are parallel to each other in the axial direction, the movable mold drag hook 6 penetrates through the second through hole 12, the fixed mold drag hook 7 penetrates through the fourth through hole 14 and the third through hole 13 and extends to the other side of the drag hook base 5, and when the mold is not opened, the overlapping part of the fourth through hole 14 and the third through hole 13 forms the first through hole 11. The fixed die drag hook 7 and the movable die drag hook 6 are both rod bodies.
The length of the elastic block 502 in the second direction is smaller than the length of the cavity 17 in the second direction, the cavity 17 is communicated with the second through hole 12 and the fourth through hole 14, one end of the elastic block 502 is arranged on the inner wall of the cavity 17 through the spring 503, and the other end of the elastic block extends to the second through hole 12 and abuts against the movable mold drag hook 6.
The fixed die drag hook 7 comprises a first end 701 fixedly connected with the fixed die 1 and a second end 702 provided with a limiting part 703, the second end 702 penetrates through the first through hole 11 and extends to the other side of the drag hook base 5, the limiting part 703 protrudes out of the fixed die drag hook 7 in the second direction, and the width of the sliding table 603 protruding out of the movable die drag hook 6 in the second direction is larger than or equal to the width of the limiting part 703 protruding out of the fixed die drag hook 7. When the movable die base plate 3 is separated from the movable die 2, the sliding table 603 extrudes the elastic block 502 to move towards the contraction direction of the spring 503 along the cavity 17 through the slope 604, the overlapping area between the third through hole 13 and the fourth through hole 14 is increased, the limiting part 703 of the fixed die drag hook 7 penetrates through the overlapping through holes of the third through hole and the fourth through hole to be separated from the drag hook base 5, specifically, the widths of the third through hole 13 and the fourth through hole 14 are consistent and are both larger than the width of the limiting part 703, and when the third through hole 13 and the fourth through hole 14 are coaxial, the limiting part 703 of the fixed die drag hook 7 is separated from the drag hook. The limiting part 703 and the side wall of the fixed die drag hook 7 are in right angle transition. When the mold is not opened, the position-limiting portion 703 is not in contact with the base 5 of the retractor.
The first direction is the mold opening direction, in particular to the direction of pulling the movable mold base plate 3 by the injection molding machine during mold opening.
As shown in fig. 7, a limit pin 18 is arranged between the movable mold 2 and the movable mold base plate 3, a limit cavity 19 is formed in the movable mold 2, the limit pin 18 is connected with the movable mold base plate 3 through threads, then the movable mold 2 is connected in a sliding mode, the head of a bolt is arranged in the sliding cavity and limited in the sliding cavity, the axial direction of the limit pin 18 is consistent with the mold opening direction, and after the movable mold base plate 3 is separated from the movable mold 2, the limit pin 18 limits the separation distance between the movable mold base plate 3 and the movable mold 2 at the X distance.
The working process is as follows:
movable mould backing plate 3, the mould foot, it is dead mutually with the bolt lock between thimble board and the bottom plate 15, during the die sinking the injection molding machine pulls open bottom plate 15 and drives whole back mould (including movable mould 2 and movable mould backing plate 3) to keeping away from the orientation die sinking of cover half 1 simultaneously, 4 for the front bezel bolts of shutter lock die on movable mould 2 board, 4 for the rear bezel lock of shutter die on movable mould backing plate 3, and there is oblique back-off between 4 front bezels of shutter and the 4 rear bezels of shutter therefore there is great locking force, can guarantee that movable mould 2 board and movable mould backing plate 3 are tightly closed, and can walk to the die sinking direction along with movable mould backing plate 3, and can be smooth between movable mould 2 and the cover half 1 like this.
After the movable mold 2 is opened, the fixed mold drag hook 7 is stuck after being pulled to the limiting part 703, at this time, the movable mold 2 does not move continuously along with the movable mold backing plate 3, the shutter 4 is opened, the movable mold 2 and the movable mold backing plate 3 are separated, the movable mold backing plate 3 continuously moves along with the mold opening direction, and the mold action can enable the deep cavity structure insert 8 to be fully separated from the deep cavity structure of the injection product 9. The movable die drag hook 6 can move along with the movable die backing plate 3 in the die sinking direction, after the inclined plane on the sliding table 603 of the movable die drag hook 6 contacts the elastic block 502, the sliding table 603 can press the elastic block 502 to move in the direction of compressing the spring 503, the overlapping area of the third through hole 13 and the fourth through hole 14 is increased until the width of the overlapping area is larger than or equal to the width of the limiting part 703, and the fixed die drag hook 7 is separated from the drag hook base 5 along the overlapping area. The movable mould drag hook 6 is separated from the drag hook base 5 through the second through hole 12, the movable mould backing plate 3 and the movable mould 2
Under the action of the limit pin 18 and the limit cavity 19, the movable die 2 continues to move along with the movable die base plate 3.
The movable mold 2 is incompletely and fixedly connected with the movable mold base plate 3 through a limiting pin, the head of the limiting pin vertically keeps away from the movable mold 2 by a distance x, and the periphery of the movable mold 2 is respectively provided with the limiting pin. The distance x that the spacer pin head was kept away from the sky equals the bullet piece and retreats distance y, and when movable mould drag hook 6 and cover half drag hook 7 broke away from out drag hook base 5 completely, parts gradually between movable mould backing plate and the movable mould, and the movable mould backing plate continues to move toward the die sinking direction, and movable mould 2 can pass through the bolt fastening and together move toward the die sinking direction on movable mould 2 board, and the distance between movable mould 2 board and the movable mould backing plate 3 still keeps being x.
The spring 503 and the elastic block are fixedly connected and embedded in the cavity 17, and the other side of the spring 503 is fixedly connected to one end of the cavity 17.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting with respect to the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the content of the embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and any changes and modifications made are within the protective scope of the present invention.
Claims (9)
1. The utility model provides a be provided with demoulding mechanism's injection mold which characterized in that: the movable mold is connected with a movable mold base plate, an insert is fixed on one side of the movable mold base plate facing the movable mold, a mold cavity is formed between the movable mold and the fixed mold, one end of the insert is connected with the movable mold base plate, the other end of the insert extends to the mold cavity and is used for molding an injection molding product, the movable mold and the movable mold base plate are connected through a shutter, a drag hook mechanism is arranged between the movable mold and the fixed mold, the drag hook mechanism comprises a drag hook base arranged on the movable mold and a fixed mold drag hook arranged on the fixed mold, a first through hole is arranged on the drag hook base, the first end of the fixed mold drag hook is fixed on the fixed mold, the second end of the fixed mold drag hook penetrates through the first through hole, a limiting part used for separating the fixed mold drag hook from the first through hole is arranged on the second end, the fixed mold drag hook, the cover half drag hook is followed first through-hole slides to spacing portion, the cover half passes through drag hook mechanism is held the movable mould, the unblock of shutter, movable mould backing plate and movable mould separation.
2. The injection mold provided with the mold-releasing mechanism according to claim 1, characterized in that: the draw hook mechanism further comprises a movable die draw hook arranged on the movable die base plate, a second through hole is formed in the draw hook base, the first end of the movable die draw hook is fixed on the movable die base plate, the second end of the movable die draw hook penetrates through the second through hole, and the first through hole and the second through hole are axially identical.
3. The injection mold provided with the mold-releasing mechanism according to claim 2, characterized in that: the drag hook base includes base body and the bullet piece mechanism of setting in base body, bullet piece mechanism includes bullet piece and elastic component be provided with the cavity on the drag hook base, bullet piece passes through elastic component elasticity and sets up in the cavity, the elasticity direction of bullet piece with the die sinking direction is perpendicular, be provided with the third through-hole on the bullet piece, be provided with the fourth through-hole on the base body, the cover half drag hook passes third through-hole and fourth through-hole extend to the opposite side of drag hook base.
4. The injection mold provided with the mold-releasing mechanism according to claim 3, characterized in that: one end of the elastic block is connected with the inner wall of the cavity through an elastic piece, and the other end of the elastic block extends to the second through hole and is abutted to the movable mold drag hook.
5. The injection mold provided with the mold-releasing mechanism according to claim 3, characterized in that: the elastic piece is a spring, and the elastic direction of the spring is perpendicular to the die opening direction.
6. The injection mold provided with the mold-releasing mechanism according to claim 3, characterized in that: the aperture of the third through hole and the fourth through hole is larger than or equal to the width of the limiting part.
7. The injection mold provided with the mold-releasing mechanism according to claim 2, characterized in that: set up the slip table on the movable mould drag hook lateral wall, the slip table protrusion the movable mould drag hook sets up on the movable mould drag hook lateral wall, the slip table with the movable mould drag hook lateral wall is through domatic connection, the slip table protrusion the width of lateral wall is more than or equal to spacing portion protrusion the width of cover half drag hook.
8. The injection mold provided with the mold-releasing mechanism according to claim 3, characterized in that: set up the slip table on the movable mould drag hook lateral wall, the slip table protrusion the movable mould drag hook sets up on movable mould drag hook lateral wall, the die sinking direction is the first direction, the cavity set up the direction with elastic block elastic direction is the second direction, the slip table with spacing portion is protruding respectively on the second direction the movable mould drag hook with the cover half drag hook, and the slip table is protruding on the second direction the width of movable mould drag hook is greater than or equal to spacing portion protrusion the width of cover half drag hook.
9. The injection mold provided with the mold-releasing mechanism according to claim 7, characterized in that: the slip table with spacing portion all sets up in one side of corresponding drag hook towards the elastic component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020566200.4U CN212666594U (en) | 2020-04-16 | 2020-04-16 | Injection mold provided with demolding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020566200.4U CN212666594U (en) | 2020-04-16 | 2020-04-16 | Injection mold provided with demolding mechanism |
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| Publication Number | Publication Date |
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| CN212666594U true CN212666594U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020566200.4U Active CN212666594U (en) | 2020-04-16 | 2020-04-16 | Injection mold provided with demolding mechanism |
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| CN (1) | CN212666594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117124548A (en) * | 2023-10-16 | 2023-11-28 | 浙江赛豪实业有限公司 | A mold ejection mechanism |
-
2020
- 2020-04-16 CN CN202020566200.4U patent/CN212666594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117124548A (en) * | 2023-10-16 | 2023-11-28 | 浙江赛豪实业有限公司 | A mold ejection mechanism |
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