CN224044456U - Injection mold fixed mold side spring block demolding mechanism - Google Patents
Injection mold fixed mold side spring block demolding mechanismInfo
- Publication number
- CN224044456U CN224044456U CN202520066059.4U CN202520066059U CN224044456U CN 224044456 U CN224044456 U CN 224044456U CN 202520066059 U CN202520066059 U CN 202520066059U CN 224044456 U CN224044456 U CN 224044456U
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- plate
- inclined guide
- fixed
- mold
- block
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Abstract
注塑模具定模侧弹块脱模机构，包括上复板和下复板，上复板下设置定模板，定模板下设置定模镶块，下复板中开设穿孔，下复板上设置模脚，模脚之间的下复板上设置上顶针板、下顶针板和顶针，注塑机顶杆穿过穿孔与下顶针板相接触，模脚上设置动模板，动模板上设置动模镶块和侧抽芯滑块，定模镶块、动模镶块和侧抽芯滑块之间有塑料件，塑料件下部有下凹槽，下凹槽与动模镶块相配合，塑料件右侧边外壁有侧凹槽，侧凹槽上部设置凸角，所述定模板下设置弹块，弹块一侧与侧凹槽相配合，弹块经限位滑动结构与定模板滑动配合，弹块中开设第一斜导孔，动模板上设置固定柱，固定柱上设置斜导杆，斜导杆与第一斜导孔相配合。
The injection mold fixed mold side spring block demolding mechanism includes an upper cover plate and a lower cover plate. A fixed mold plate is set under the upper cover plate, and a fixed mold insert is set under the fixed mold plate. A through hole is opened in the lower cover plate. A mold foot is set on the lower cover plate. An upper ejector plate, a lower ejector plate, and an ejector pin are set on the lower cover plate between the mold feet. An injection molding machine ejector rod passes through the through hole and contacts the lower ejector plate. A movable mold plate is set on the mold foot. A movable mold insert and a side core-pulling slider are set on the movable mold plate. A plastic part is between the fixed mold insert, the movable mold insert, and the side core-pulling slider. The lower part of the plastic part has a lower groove, which cooperates with the movable mold insert. The outer wall of the right side of the plastic part has a side groove, and a protruding corner is set on the upper part of the side groove. A spring block is set under the fixed mold plate. One side of the spring block cooperates with the side groove. The spring block slides with the fixed mold plate through a limiting sliding structure. A first oblique guide hole is opened in the spring block. A fixed post is set on the movable mold plate. An oblique guide rod is set on the fixed post, and the oblique guide rod cooperates with the first oblique guide hole.
Description
Technical Field
The utility model relates to an injection mold, in particular to a side spring block demoulding mechanism of a fixed mold of the injection mold.
Background
When plastic parts are produced by adopting an injection mold, such as a body framework on a left/right front door of an automobile, because the structure is complex, core pulling needs to be carried out in four directions, namely, up, down, left and right, the existing mode is to design one side of the plastic parts close to the center of the mold into a relatively straight structure, so that when the mold is opened, a part on the side of the movable mold can drive the plastic parts to directly move downwards, the plastic parts are enabled to downwards deviate from the fixed mold plate, and the plastic parts can be ejected out smoothly. With the increase of customer demands, in order to increase the stereoscopic impression of the plastic part and make the appearance more beautiful, a side groove is required to be designed on one side of the plastic part, which is close to the center of the mold, and a convex angle structure is required to be designed on the side groove, and the side groove and the convex angle lead to the incapability of ejecting and demolding when the plastic part is opened, so that an inner core-pulling structure of which the side groove and the convex angle are firstly released is required to be designed in the mold, the existing mode is to generally arrange an inner core-pulling sliding block on a movable mold plate, arrange an inclined ejector structure on an upper ejector plate and a lower ejector plate, drive the inner core-pulling sliding block by an inclined ejector rod of the inclined ejector structure through the movable mold plate, and drive the inner core-pulling sliding block to be pushed upwards along with the plastic part by the inclined ejector rod of the inclined ejector structure to move inwards so as to release the side groove and the convex angle of the plastic part after the mold is opened. However, for some injection molds (the inside of the movable mold plate is generally covered with straight ejector rod perforations, inclined ejector rod perforations, etc. of various cooling waterways and other ejection structures), the inclined ejector rod perforations are not arranged in enough space on one side of the movable mold plate, so that the plastic part cannot be demolded smoothly.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides the injection mold fixed mold side elastic block demoulding mechanism which has a core pulling structure, occupies less space of a movable template, is beneficial to arranging more cooling waterways and other structures in the movable template, and ensures that plastic parts can be smoothly demoulded.
The utility model relates to a side ejector demolding mechanism of an injection mold, which comprises an upper compound plate and a lower compound plate, wherein the upper compound plate is provided with a fixed template below, the fixed template is provided with a fixed die insert, the lower part of the fixed template is matched with the movable template, the right side outer wall of the plastic is provided with a side groove, the upper part of the side groove is provided with a convex corner, the lower part of the fixed template is provided with an ejector block, one side of the ejector block is matched with the side groove, the ejector block is in sliding fit with the fixed template through a limiting sliding structure, the ejector block is provided with a first inclined column, the movable template is provided with a movable template, a movable die insert and a side core-pulling sliding block are arranged between the movable template, a plastic part formed by injection molding is arranged in the cavity, the lower part of the plastic part is provided with a lower groove, the lower part of the plastic part is matched with the movable die insert, the right side wall of the plastic part is provided with the side groove, the upper part of the side groove is provided with a convex corner, the fixed template is provided with the ejector block, one side of the ejector block is matched with the side groove, the ejector block is in sliding fit with the fixed template through the limiting sliding structure, the inclined column is arranged in the ejector block, and a first inclined column is arranged on the movable template, and a first inclined column is matched with a guide rod.
Further, the number of the first inclined guide holes is two, and the number of the corresponding fixed columns and the corresponding inclined guide rods is two.
Further, the cross section of the first inclined guide hole is rectangular, and the cross sections of the corresponding fixed column and the inclined guide rod are rectangular.
Further, a wear-resisting pad is arranged below the inclined guide rod.
Further, the limiting sliding structure comprises a limiting block arranged below the fixed die plate, and side sliding blocks which are protruding are arranged on two sides of the elastic block and are in sliding fit with the limiting block.
Further, an inclined guide bar is arranged below the fixed die plate, an inclined guide groove is formed in the top of the elastic block, and the inclined guide bar is matched with the inclined guide groove.
Further, an inclined guide post is arranged below the fixed die plate, a second inclined guide hole is formed in the side core-pulling sliding block, and the inclined guide post is matched with the second inclined guide hole.
The side elastic block demoulding mechanism of the injection mould has the beneficial effects that as the two sides of the plastic part are subjected to side core pulling, and one side is close to the center of the mould, and the movable mould plate is not provided with an inclined ejection structure in enough space, by arranging the elastic block below the fixed mould plate, the inclined guide rod on the fixed column is matched with the first inclined guide hole of the elastic block, and the limiting block is matched with the side sliding block of the elastic block, the elastic block can move inwards to extract the side groove and the convex angle of the plastic part while the mould gradually evolves, the core pulling structure occupies less space of the movable mould plate, is beneficial to arranging more structures such as cooling waterways and the like in the movable mould plate, and ensures that the plastic part can be demoulded smoothly.
Drawings
FIG. 1 is a schematic structural view of a side spring block demoulding mechanism of a fixed mould of an injection mould;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;
FIG. 3 is a schematic perspective view showing the fit of side sliding blocks on two sides of the spring block and the limiting block;
FIG. 4 is an enlarged schematic view of a portion at B of FIG. 3;
FIG. 5 is an enlarged schematic view of a portion of FIG. 3 at C;
Fig. 6 is a schematic perspective view of a plastic part with side grooves and lobes.
In the drawing, 1, an upper compound plate, 2, a lower compound plate, 3, a fixed die plate, 4, a fixed die insert, 6, a perforation, 7, a die leg, 8, an upper ejector plate, 9, a lower ejector plate, 10, an ejector pin, 11, an ejector pin of an injection molding machine, 12, a movable die plate, 13, a movable die insert, 14, a side core pulling slide block, 15, a plastic piece, 16, a lower groove, 17, a side groove, 18, a convex angle, 19, a spring block, 20, a first inclined guide hole, 21, a fixed column, 22, an inclined guide rod, 23, a wear pad, 24, a limiting block, 25, a side sliding block, 26, an inclined guide bar, 27, an inclined guide groove, 28, an inclined guide column, 29 and a second inclined guide hole.
Detailed Description
The utility model relates to a side ejector block demoulding mechanism of an injection mould, which comprises an upper compound plate 1 and a lower compound plate 2, as shown in fig. 1-6, wherein a fixed die plate 3 is arranged below the upper compound plate 1, a fixed die insert 4 is arranged below the fixed die plate 3, a through hole 6 is formed in the lower compound plate 2, a die leg 7 is arranged on the lower compound plate 2, an upper ejector plate 8, a lower ejector plate 9 and an ejector pin 10 are arranged on the lower compound plate 2 between the die legs 7, an ejector rod 11 of the injection mould passes through the through hole 6 to be in contact with the lower ejector plate 9, a movable die plate 12 is arranged on the die leg 7, a movable die insert 13 and a side core-pulling slide block 14 are arranged on the movable die plate 12, a die cavity is formed among the fixed die insert 4, the movable die insert 13 and the side core-pulling slide block 14, a plastic part 15 formed by injection moulding is arranged in the die cavity, a lower groove 16 is arranged at the lower part of the plastic part 15, the lower groove is matched with the movable die insert 13, a side groove 17 is formed on the outer wall of the right side of the plastic part 15, a convex corner 18 is arranged at the upper part of the side groove 17, an ejector plate 3 is arranged below the fixed die plate 3, a side block 19 is arranged on the fixed die 19, one side 19 is matched with a guide rod 19 and a guide hole 20 is arranged in a guide hole 20 which is formed in a guide hole 20 and is arranged in a guide hole 20, which is matched with the inclined structure.
Further, the number of the first inclined guide holes 20 is two, and the number of the corresponding fixed columns 21 and inclined guide rods 22 is two. The two groups of first inclined guide holes 20 are matched with the two inclined guide rods 22, so that the action is more stable and reliable.
Further, the cross section of the first inclined guide hole 20 is rectangular, and the cross sections of the corresponding fixed column 21 and inclined guide rod 22 are rectangular. By adopting a rectangular structure, on one hand, the wear-resisting pad 23 can be arranged on the lower side of the inclined guide rod 22, and on the other hand, the fixed column 21 is designed into a lower vertical structure and an upper inclined structure.
Further, a wear pad 23 is arranged under the inclined guide rod 22. Because the lower part of the inclined guide rod 22 is mainly matched with the inner wall of the first inclined guide hole 20 during mold opening and core pulling, the lower part of the inclined guide rod 22 is provided with the wear-resisting pad 23, so that the service life of the inclined guide rod is prolonged.
Further, the limiting sliding structure comprises a limiting block 24 arranged below the fixed die plate 3, protruding side sliding blocks 25 arranged on two sides of the elastic block 19, and the side sliding blocks 25 are in sliding fit with the limiting block 24. The limiting block 24 and the side sliding block 25 can enable the elastic block 19 to slide on one side of the fixed die plate 3 only, and have a limiting effect on the elastic block 19 and a guiding effect on the sliding of the elastic block 19.
Further, an inclined guide bar 26 is arranged under the fixed die plate 3, an inclined guide groove 27 is arranged at the top of the elastic block 19, and the inclined guide bar 26 is matched with the inclined guide groove 27. The oblique guide strips 26 and the oblique guide grooves 27 are provided to further guide the sliding of the spring block 19.
Further, an inclined guide post 28 is arranged under the fixed die plate 3, a second inclined guide hole 29 is formed in the side core-pulling slide block 14, and the inclined guide post 28 is matched with the second inclined guide hole 29.
The injection mold fixed mold side elastic block demoulding mechanism has the beneficial effects that: after the plastic part 15 is injection molded, the lower compound plate 2 drives the die feet 7, the upper ejector plate 8, the lower ejector plate 9, the ejector pins 10, the movable die plate 12, the movable die insert 13, the side core-pulling slide block 14, the fixed column 21 and the plastic part 15 to move downwards together, the upper compound plate 1, the fixed die plate 3 and the fixed die insert 4 keep still, the dies gradually evolve from the fixed die plate 3 and the movable die plate 12, at the moment, the inclined guide rod 22 on the fixed column 21 is matched with the first inclined guide hole 20 of the elastic block 19 below the fixed die plate 3, under the guiding action of the first inclined guide hole 20, the elastic block 19 can move along the inclined direction of the inclined guide rod 22, and simultaneously the elastic block 19 moves along the inclined direction of the limiting block 24 and the side sliding block 25, and moving along the inclined directions of the inclined guide bars 26 and the inclined guide grooves 27 (the inclined directions and angles of the inclined guide bars 26 and the inclined guide grooves 27 are consistent with the inclined directions and angles of the limiting block 24 and the side sliding blocks 25), so that the ejector block 19 can be separated from the side concave groove 17 and the convex angle 18 on the right side of the plastic part 15 until the inclined guide bar 22 is separated from the first inclined guide hole 20, simultaneously, the inclined guide pillar 28 is matched with the second inclined guide hole 29 of the side core-pulling slide block 14, the side core-pulling slide block 14 is outwards pulled out of the left outer wall of the plastic part 15 under the guiding action of the inclined guide pillar 28, after core pulling is completed on two sides of the plastic part 15, the mold is completely opened, finally, the ejector rods 11 of the injection molding machine penetrate through the perforation 6 to push the upper ejector pins 8 and the lower ejector pins 8 and 9, the ejector pins 10 are driven by the upper ejector pins 8 and the lower ejector pins 9, and the ejector pins 10 penetrate through the movable mold plate 12 and the movable mold insert 13, and the plastic part 15 on two sides are ejected upwards to be demolded. According to the injection mold fixed mold side elastic block demolding mechanism, since side core pulling is carried out on two sides of a plastic part 15, one side is close to the center of the mold, and an inclined top structure is not arranged in a movable mold plate 12 in enough space, therefore, by arranging an elastic block 19 below a fixed mold plate 3, an inclined guide rod 22 on a fixed column 21 is utilized to be matched with a first inclined guide hole 20 of the elastic block 19, a limiting block 24 is utilized to be matched with a side sliding block 25 of the elastic block 19, when the mold gradually evolves, the elastic block 19 can move inwards to draw out a side groove 17 and a convex angle 18 of the plastic part 15, the core pulling structure occupies less space of the movable mold plate 12, more cooling waterways and other structures are arranged in the movable mold plate 12, and smooth demolding of the plastic part 15 is ensured.
Claims (7)
1. The injection mold fixed die side elastic block demoulding mechanism comprises an upper compound plate (1) and a lower compound plate (2), wherein a fixed die plate (3) is arranged below the upper compound plate (1), a fixed die insert (4) is arranged below the fixed die plate (3), a perforation (6) is formed in the lower compound plate (2), a die foot (7) is arranged on the lower compound plate (2), an upper ejector plate (8), a lower ejector plate (9) and an ejector pin (10) are arranged on the lower compound plate (2) between the die feet (7), an ejector pin (11) of the injection molding machine passes through the perforation (6) to be in contact with the lower ejector plate (9), a movable die plate (12) is arranged on the die foot (7), a movable die insert (13) and a side core pulling slide block (14) are arranged on the movable die plate (12), a die cavity is formed among the fixed die insert (4), the movable die insert (13) and the side core pulling slide block (14), a plastic part (15) for injection molding is arranged in the die cavity, a lower groove (16) is arranged at the lower part of the plastic part (15), the lower groove (13) is matched with the movable die insert (13), a concave groove (17) is arranged at the side of the movable die insert (13), a concave groove (17) is matched with the side groove (17), the elastic block (19) is in sliding fit with the fixed template (3) through a limiting sliding structure, a first inclined guide hole (20) is formed in the elastic block (19), a fixed column (21) is arranged on the movable template (12), an inclined guide rod (22) is arranged on the fixed column (21), and the inclined guide rod (22) is matched with the first inclined guide hole (20).
2. The ejection block demoulding mechanism of the injection mould fixed mould side as claimed in claim 1, wherein the number of the first inclined guide holes (20) is two, and the number of the corresponding fixed columns (21) and the inclined guide rods (22) is two.
3. The ejection block demolding mechanism of the injection mold fixed mold side of claim 1, wherein the first inclined guide hole (20) has a rectangular cross section, and the corresponding fixed column (21) and inclined guide rod (22) have rectangular cross sections.
4. The demoulding mechanism for the side elastic block of the fixed mould of the injection mould according to claim 1, wherein a wear-resistant pad (23) is arranged below the inclined guide rod (22).
5. The injection mold cover half side bullet piece demoulding mechanism of claim 1, wherein the limiting sliding structure comprises a limiting block (24) arranged below the cover half plate (3), protruding side sliding blocks (25) arranged on two sides of the bullet piece (19), wherein the side sliding blocks (25) are in sliding fit with the limiting block (24).
6. The ejection block demoulding mechanism of the injection mould fixed mould side of claim 1, wherein an inclined guide bar (26) is arranged below the fixed mould plate (3), an inclined guide groove (27) is arranged at the top of the ejection block (19), and the inclined guide bar (26) is matched with the inclined guide groove (27).
7. The injection mold fixed mold side spring block demolding mechanism according to claim 1, wherein the inclined guide pillar (28) is arranged below the fixed mold plate (3), the second inclined guide hole (29) is formed in the side core-pulling slide block (14), and the inclined guide pillar (28) is matched with the second inclined guide hole (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520066059.4U CN224044456U (en) | 2025-01-13 | 2025-01-13 | Injection mold fixed mold side spring block demolding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520066059.4U CN224044456U (en) | 2025-01-13 | 2025-01-13 | Injection mold fixed mold side spring block demolding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224044456U true CN224044456U (en) | 2026-03-27 |
Family
ID=99205847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520066059.4U Active CN224044456U (en) | 2025-01-13 | 2025-01-13 | Injection mold fixed mold side spring block demolding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224044456U (en) |
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2025
- 2025-01-13 CN CN202520066059.4U patent/CN224044456U/en active Active
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