CN214026931U - Elastic injection molding part demoulding device with back-off structure - Google Patents
Elastic injection molding part demoulding device with back-off structure Download PDFInfo
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- CN214026931U CN214026931U CN202022835610.7U CN202022835610U CN214026931U CN 214026931 U CN214026931 U CN 214026931U CN 202022835610 U CN202022835610 U CN 202022835610U CN 214026931 U CN214026931 U CN 214026931U
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Abstract
The utility model discloses an elastic injection molding part demoulding device with an inverted buckle structure, which comprises a shovel machine component and a sliding block, wherein the shovel machine component and the sliding block are arranged in a panel and a B plate, the shovel machine component comprises a moving block and a shovel machine which is inserted in the moving block in a sliding manner, the sliding block is arranged below the B plate, the top of the shovel machine is fixedly arranged in the panel, a front mold insert is vertically arranged between the moving block and the sliding block, one side of the front mold insert is concave inwards, and an injection molding cavity with an inverted buckle part is formed between the front mold insert and the tail end of the moving block; and one side of the bottom of the sliding block is abutted with a thimble, the other end of the thimble penetrates through the front mold insert and is abutted with the side wall of the inverted part, and the sliding block moves upwards and drives the thimble to move forwards so as to eject the inverted part out of the front mold insert. The utility model discloses set up slider and thimble assembly and come the drawing of patterns that warp to the injection moulding product in the narrow and small space, improved drawing of patterns efficiency.
Description
Technical Field
The utility model relates to an injection mold drawing of patterns equipment technical field specifically relates to an elasticity injection molding shedder with back-off structure.
Background
After the injection mold performs injection molding on a plastic product, the problem that the slider direction is difficult to directly demold and back-off exists in a slider core pulling molding area of the plastic product, and the back-off structure is often clamped with the slider together. If the plastic product has a plurality of inside back-off grooves, the demolding mode that the conventional outward movement is used for core pulling is not suitable for forced demolding, otherwise, the groove edges of the back-off grooves are easily damaged by pulling, or the core pulling of the mold is abraded, so that the shape of the product subjected to next injection molding is subjected to error.
In the process of processing the mold, the structures of a plurality of injection products are smaller, and the structures of the injection mold are also smaller, so that the demolding space is smaller, and demolding facing to the inverted buckle structure is difficult to realize.
Therefore, if core-pulling and demolding are performed on a small injection molding product with an inverted buckle structure quickly and nondestructively, the problem to be solved is urgent at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide an elasticity injection molding shedder with back-off structure.
The purpose of the utility model is realized through the following technical scheme:
the elastic injection molding part demolding device with the back-off structure comprises a shovel machine assembly and a sliding block, wherein the shovel machine assembly and the sliding block are arranged in a panel and a B plate, the shovel machine assembly comprises a moving block and a shovel machine which is inserted into the moving block in a sliding mode, the sliding block is arranged below the B plate, the top of the shovel machine is fixedly arranged in the panel, a front mold insert is vertically arranged between the moving block and the sliding block, one side of the front mold insert is concave inwards, and an injection molding cavity with a back-off part is formed between one side of the front mold insert and the tail end of the moving block; the front mould insert is arranged on the front mould insert, the other end of the ejector pin penetrates through the front mould insert and abuts against the side wall of the reversing part, a first moving space is formed between the top of the slider and the panel, the panel is moved upwards after injection molding is completed, the shovel machine synchronously moves upwards and drives the moving block to move forwards, the slider moves to the bottom of the first moving space and then moves upwards along with the panel, and the ejector pin is driven to move forwards to eject the reversing part out of the front mould insert.
Preferably, the slider comprises a rod-shaped upper portion and an umbrella-shaped lower portion, the diameter of the upper portion is consistent, and the diameter of the lower portion is gradually enlarged from top to bottom.
Preferably, the bottom of the panel is fixedly provided with a connecting block, the top of the sliding block is T-shaped, the head of the sliding block is arranged in the connecting block, and the diameter of the head is matched with the inner diameter of the connecting block; the rod part of the first moving space extends out of the bottom of the connecting block, the diameter of the rod part is smaller than that of the upper part, and when the bottom of the connecting block is abutted to the upper part, a gap between the bottom of the top head and the bottom of the connecting block is the first moving space.
Preferably, the board B is provided with a containing cavity matched with the lower part, the lower part is arranged in the containing cavity, a gap is formed between the inner wall of the containing cavity and the outer wall of the lower part, and the gap forms a second moving space capable of enabling the sliding block to move.
Preferably, an ejector block with a diameter larger than that of the ejector pin is arranged between the ejector pin and the lower portion, a pipe groove is formed in the plate B, the ejector block is arranged in the pipe groove in a sliding mode, and the side face, abutted against the lower portion, of the ejector block is an inclined face matched with the side wall of the lower portion.
Preferably, one side of the top block is provided with a groove, a limiting block is fixedly arranged on the inner wall of the pipe groove opposite to the groove, the groove moves relative to the limiting block, and the moving distance of the top block is not less than the depth of the inverted buckle part embedded into the front mold insert.
Preferably, the shovel machine is vertically and fixedly arranged at the bottom of the panel, the bottom of the shovel machine is provided with a bending part, the bending part inclines towards the front side of the shovel machine from top to bottom, and the bending part is slidably inserted into the moving block.
The beneficial effects of the utility model are mainly embodied in that:
set up movable block and front mould mold insert and carry out the product and mould plastics, set up slider and thimble assembly simultaneously and come to carry out the deformation drawing of patterns to the product after moulding plastics, realize in narrow and small space that the front mould mold insert follows the removal of upper and lower mould and carry out the drawing of patterns, effectively retrencied the mould structure, practiced thrift the inner space of mould and improved drawing of patterns efficiency.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the structure of the embodiment of the utility model is schematically shown;
FIG. 2: an enlarged view of portion a in fig. 1;
FIG. 3: an enlarged view of portion B in fig. 1.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.
As shown in fig. 1 to 3, the utility model discloses an elasticity injection molding shedder with back-off structure, including shovel quick-witted subassembly and the slider 7 that sets up in panel 1 and B board 2, its characterized in that: the shovel machine assembly comprises a moving block 3 and a shovel machine 4 which is slidably inserted into the moving block 3, the sliding block 7 is arranged below the B plate 2, the top of the shovel machine 4 is fixedly arranged in the panel 1, a front mold insert 5 is vertically arranged between the moving block 3 and the sliding block 7, one side of the front mold insert 5 is concave inwards, and an injection mold cavity 100 with a back-off part 6 is formed between the front mold insert 5 and the tail end of the moving block 3; a thimble 8 is abutted to one side of the bottom of the slide block 7, the other end of the thimble 8 penetrates through the front mold insert 5 and is abutted to the side wall of the reverse buckling part 6, a first moving space 200 is arranged between the top of the slide block 7 and the panel 1, the panel 1 is moved upwards after injection molding is completed, the shovel machine 4 synchronously moves upwards and drives the moving block 3 to move forwards, the slide block 7 moves upwards along with the panel 1 after moving to the bottom of the first moving space 200, and the thimble 8 is driven to move forwards so as to eject the reverse buckling part 6 out of the front mold insert 5.
Specifically, as shown in fig. 1, the slider 7 includes a rod-shaped upper portion 701 and an umbrella-shaped lower portion 702, the diameter of the upper portion 701 is kept consistent, and the diameter of the lower portion 702 is gradually enlarged from top to bottom. The B plate 2 has a through hole therein corresponding to the diameter of the upper part 701, and the lower part 702 is located outside the through hole.
As further shown in fig. 1 and 3, a connecting block 9 is fixedly arranged at the bottom of the panel 1, the top 703 of the sliding block 7 is T-shaped, the head of the sliding block is arranged in the connecting block 9, and the diameter of the head is matched with the inner diameter of the connecting block 9; the rod part of the first moving space 200 extends from the bottom of the connecting block 9, the diameter of the rod part is smaller than that of the upper part 701, and when the bottom of the connecting block 9 is abutted to the upper part 701, the gap between the bottom of the head part of the top part 703 and the bottom of the connecting block 9 is the first moving space 200. The structure is arranged so that the slide block 7 does not move upwards synchronously with the shovel machine 1, and the slide block 7 needs to wait until the stroke of the first moving space 200 is finished to move upwards along with the panel 1.
As shown in fig. 2, the B plate 2 has a receiving cavity 201 therein, which is matched with the lower portion 702, the lower portion 702 is disposed in the receiving cavity 201, and a gap is formed between an inner wall of the receiving cavity 201 and an outer wall of the lower portion 702, and the gap forms a second moving space 300 that can move the slider 7. After the slider 7 has moved through the second moving space 300, the outer wall thereof is tightly attached to the inner wall of the accommodating cavity 201.
Further, a top block 10 with a diameter larger than that of the thimble 8 is arranged between the thimble 8 and the lower portion 702, a pipe groove 202 is arranged in the B plate 2, the top block 10 is slidably arranged in the pipe groove 202, and the side surface of the top block 10 abutted against the lower portion 702 is an inclined surface matched with the side wall of the lower portion 702. The top block 10 and the lower portion 702 are always in contact with each other, and when the lower portion 702 moves upward in the second movement space 300, since the contact surface between the top block 10 and the lower portion 702 is an inclined surface, the upper portion 702 moves upward to push the top block 10 forward and move it forward in the tube groove 202, and the ejector pin 8 is pushed by the top block 10 to move forward synchronously, so that the inverted portion 6 is ejected from the front mold insert 5.
In order to avoid excessive forward movement of the thimble 8, the reverse buckling part 6 is broken, a groove 1001 is formed in one side of the ejector block 10, a limiting block 11 is fixedly arranged on an inner wall of the pipe groove 202 opposite to the groove 1001, the groove 1001 moves relative to the limiting block 11, and the moving distance of the ejector block 10 is not less than the depth of the reverse buckling part 6 embedded in the front mold insert 5, so that the thimble 8 can eject the reverse buckling part 6.
As shown in fig. 2, the shovel 4 is vertically fixed at the bottom of the panel 1, and the shovel 4 moves up along with the panel 1. In order to enable the moving block 3 to move forward along with the upward movement of the shovel machine 4, the bottom of the shovel machine 4 is provided with a bent portion 401, the bent portion 401 inclines towards the front side of the shovel machine 4 from top to bottom, the bent portion 401 is inserted into the moving block 3 in a sliding mode, an insertion hole matched with the bent portion 401 is formed in the moving block 3, and after the shovel machine 4 moves upward, the bent portion 401 which inclines forward drives the moving block 3 to move forward.
The utility model discloses a theory of operation does:
firstly, after the upper and lower die closing dies complete injection molding, moving the panel 1 upwards, simultaneously moving the shovel machine 4 and the connecting block 9 upwards synchronously along with the panel 1, driving the moving block 3 to move forwards, and moving the sliding block 7 in the first moving space 200;
secondly, when the slide block 7 moves to the bottom of the first moving space 200, the connecting block 9 abuts against the head of the top 703 of the slide block 7, and at this time, the slide block 7 moves upwards along with the panel 1;
then, the lower part 702 of the slide block 7 moves upwards in the second moving space 300, and drives the top block 10 to move forwards, so as to push the thimble 8 to move forwards synchronously, and the thimble 8 pushes the reversing part 6 to move forwards;
and finally, the ejector pin 8 ejects the back-off part 6 out of the front mold insert 5, and the upper mold and the lower mold are separated to finish demolding.
The beneficial effects of the utility model are mainly embodied in that:
the moving block 3 and the front mold insert 5 are arranged to perform product injection molding, the sliding block 7 and the ejector pin 8 are arranged to perform deformation demolding on the injection molded product, the front mold insert 5 is demolded along with the movement of the upper mold and the lower mold in a narrow space, the mold structure is effectively simplified, the inner space of the mold is saved, and the demolding efficiency is improved.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. Elasticity injection molding shedder with back-off structure, including last lower mould, panel (1) and B board (2) have between last lower mould, be equipped with shovel machine subassembly and slider (7), its characterized in that in panel (1) and B board (2): the shovel machine assembly comprises a moving block (3) and a shovel machine (4) which is inserted into the moving block (3) in a sliding mode, the sliding block (7) is arranged below the B plate (2), the top of the shovel machine (4) is fixedly arranged in the panel (1), a front mold insert (5) is vertically arranged between the moving block (3) and the sliding block (7), one side of the front mold insert (5) is concave inwards, and an injection molding cavity (100) with a back-off part (6) is formed between the front mold insert and the tail end of the moving block (3); an ejector pin (8) is abutted to one side of the bottom of the sliding block (7), the other end of the ejector pin (8) penetrates through the front mold insert (5) and is abutted to the side wall of the inverted portion (6), a first moving space (200) is formed between the top of the sliding block (7) and the panel (1), the panel (1) is moved upwards after injection molding is completed, the shovel machine (4) synchronously moves upwards and drives the moving block (3) to move forwards, the sliding block (7) moves to the bottom heel of the first moving space (200) along with the panel (1) and drives the ejector pin (8) to move forwards so as to eject the inverted portion (6) out of the front mold insert (5).
2. The apparatus for releasing an elastic injection-molded part from a mold having an inverted buckle structure according to claim 1, wherein: the sliding block (7) comprises a rod-shaped upper part (701) and an umbrella-shaped lower part (702), the diameter of the upper part (701) is kept consistent, and the diameter of the lower part (702) is gradually enlarged from top to bottom.
3. The apparatus for releasing an elastic injection-molded part having an inverted buckle structure according to claim 2, wherein: a connecting block (9) is fixedly arranged at the bottom of the panel (1), the top (703) of the sliding block (7) is T-shaped, the head of the sliding block is arranged in the connecting block (9), and the diameter of the head is matched with the inner diameter of the connecting block (9); the rod part of the first moving space (200) extends out of the bottom of the connecting block (9), the diameter of the rod part is smaller than that of the upper part (701), and when the bottom of the connecting block (9) is abutted against the upper part (701), a gap between the bottom of the head part of the top part (703) and the bottom of the connecting block (9) is formed.
4. The apparatus for releasing an elastic injection-molded part having an inverted buckle structure according to claim 2, wherein: the B board (2) is internally provided with an accommodating cavity (201) matched with the lower part (702), the lower part (702) is arranged in the accommodating cavity (201), a gap is formed between the inner wall of the accommodating cavity (201) and the outer wall of the lower part (702), and the gap forms a second moving space (300) which can enable the sliding block (7) to move.
5. The apparatus for releasing an elastic injection-molded part having an inverted buckle structure according to claim 2, wherein: a top block (10) with the diameter larger than that of the thimble (8) is arranged between the thimble (8) and the lower part (702), a pipe groove (202) is arranged in the B plate (2), the top block (10) is arranged in the pipe groove (202) in a sliding manner, and the side surfaces of the top block (10) and the lower part (702) in butt joint are inclined surfaces matched with the side walls of the lower part (702).
6. The apparatus for releasing an elastic injection-molded part having an inverted buckle structure according to claim 5, wherein: one side of the top block (10) is provided with a groove (1001), a limiting block (11) is fixedly arranged on the inner wall, opposite to the groove (1001), in the pipe groove (202), the groove (1001) moves relative to the limiting block (11), and the moving distance of the top block (10) is not less than the depth of the inverted buckle part (6) embedded in the front mold insert (5).
7. The apparatus for releasing an elastic injection-molded part from a mold having an inverted buckle structure according to claim 1, wherein: the shovel machine (4) is vertically and fixedly arranged at the bottom of the panel (1), a bending part (401) is arranged at the bottom of the shovel machine, the bending part (401) inclines towards the front side of the shovel machine (4) from top to bottom, and the bending part (401) is slidably inserted into the moving block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022835610.7U CN214026931U (en) | 2020-12-01 | 2020-12-01 | Elastic injection molding part demoulding device with back-off structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022835610.7U CN214026931U (en) | 2020-12-01 | 2020-12-01 | Elastic injection molding part demoulding device with back-off structure |
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| CN214026931U true CN214026931U (en) | 2021-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619600A (en) * | 2022-02-25 | 2022-06-14 | 株洲时代瑞唯减振装备有限公司 | External demoulding platform for metal rubber product |
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2020
- 2020-12-01 CN CN202022835610.7U patent/CN214026931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619600A (en) * | 2022-02-25 | 2022-06-14 | 株洲时代瑞唯减振装备有限公司 | External demoulding platform for metal rubber product |
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