CN218660279U - Core-pulling anti-retreating mechanism and injection mold - Google Patents
Core-pulling anti-retreating mechanism and injection mold Download PDFInfo
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- CN218660279U CN218660279U CN202222212930.6U CN202222212930U CN218660279U CN 218660279 U CN218660279 U CN 218660279U CN 202222212930 U CN202222212930 U CN 202222212930U CN 218660279 U CN218660279 U CN 218660279U
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- oil cylinder
- core
- connecting seat
- cylinder connecting
- shovel base
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 230000006698 induction Effects 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 13
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 9
- 230000001939 inductive effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model provides a core-pulling anti-return mechanism and an injection mold, wherein the core-pulling anti-return mechanism comprises an oil cylinder; the oil cylinder connecting seat is connected with the oil cylinder and provided with two inclined sliding chutes which are arranged in a V shape; the shovel base is internally provided with a moving channel and is provided with a movable mold core; the two buckling bases are arranged on the moving channel and respectively correspond to the two inclined sliding chutes; the buckling base is provided with a limiting part, and the limiting parts are respectively arranged in parallel with the corresponding inclined sliding grooves; when the oil cylinder drives the oil cylinder connecting seat to move forwards until the limiting part is abutted against the wall surface of the inclined sliding groove, the oil cylinder connecting seat is abutted against the shovel base, and the oil cylinder drives the shovel base to move forwards through the oil cylinder connecting seat. The utility model discloses an oblique spout carries out the atress distribution with the oblique sliding fit who detains the base effort of moulding plastics for the power of moulding plastics reduces the effective effort of shovel base and hydro-cylinder connecting seat, and the effort that the hydro-cylinder received reduces, prevents effectively that the core from retreating, has improved the quality of product greatly.
Description
Technical Field
The utility model relates to an injection mold's technical field, in particular to loose core prevents moving back mechanism and injection mold.
Background
When an injection mold is used for processing a product with a through hole, a groove or a boss, the product cannot be directly removed from the mold in the demolding process, and a core for forming the through hole, the groove or the boss must be firstly extracted from a mold body, namely the core is pulled. This requires a mechanism that can extract and reset the core, i.e., a core back anti-back mechanism.
The oil cylinder is usually adopted to drive when the mold core is fixed. In the production process, the core is pushed to move forwards in place relative to the die body by the oil cylinder; then carrying out injection molding processing; and after the injection molding is finished, the oil cylinder pulls the mold core to retreat relative to the mold body, so that the mold core is realized. However, in the injection molding process, the core will move back along the core-pulling direction due to the injection molding pressure, so that the product will have defects such as flash, burr and glue overflow. Therefore, a core-pulling anti-back mechanism is needed to prevent the core, i.e. the inner tap, from backing back in the injection molding process so as to improve the product defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a loose core is prevented moving back mechanism and injection mold aims at effectively solving the problem that the in-process core of moulding plastics rolled back.
In order to achieve the above purpose, the technical scheme of the utility model has:
the utility model provides a core-pulling anti-return mechanism, which comprises an oil cylinder; the oil cylinder connecting seat is connected with the oil cylinder and provided with two inclined sliding chutes which are arranged in a V shape; the shovel base is internally provided with a moving channel, and a movable mold core is arranged on the shovel base; the two buckling bases are movably arranged on the moving channel and respectively correspond to the two inclined sliding chutes; the buckling base is provided with a limiting part, and the limiting parts are respectively arranged in parallel with the corresponding inclined sliding grooves; when the oil cylinder drives the oil cylinder connecting seat to move forwards until the limiting part is abutted against the wall surface of the inclined chute, the oil cylinder connecting seat is abutted against the shovel base, and the oil cylinder drives the shovel base to move forwards through the oil cylinder connecting seat.
Compared with the prior art, the utility model provides a pair of loose core prevents moving back mechanism, at the in-process of moulding plastics, carries out the atress distribution with the slant sliding fit who detains the base through oblique spout for the power of moulding plastics reduces the effective effort of shovel base and hydro-cylinder connecting seat, and the effort that the hydro-cylinder received reduces, thereby makes shovel base and hydro-cylinder connecting seat be difficult for shifting backward, prevents effectively that the core from retreating, has improved the quality of product greatly.
In a preferred embodiment, the two sides of the oil cylinder connecting seat and the shovel base are symmetrically provided with guide sliding strips, and the length direction of each guide sliding strip is parallel to the moving direction of the oil cylinder connecting seat and the moving direction of the shovel base.
In a preferred embodiment, the sliding guide strip is provided with a clamping portion, and the clamping portion is in matched abutting contact with the buckle base.
In a preferred embodiment, the oil cylinder connecting seat is connected with the oil cylinder through a transition block, and the oil cylinder connecting seat is connected with the transition block in a clamping manner.
In a preferred embodiment, the section of the transition block is in a T shape, and the oil cylinder connecting seat is provided with a T-shaped groove for mounting the transition block.
In a preferred embodiment, the shovel base is provided with a convex sliding part, and the sliding part is obliquely arranged along the vertical direction; the core is provided with a sliding groove corresponding to the sliding part.
In a preferred embodiment, the bottom of the oil cylinder connecting seat is provided with a wear-resisting plate.
In a preferred embodiment, the core back anti-receding mechanism further includes: the induction seat is connected with the shovel base; the two induction switches are arranged on two sides of the induction seat.
In a preferred embodiment, the inductive switch comprises a travel limit switch.
The utility model also provides an injection mold, be in including cover half and setting mould benevolence on the cover half still includes as above arbitrary the mechanism is prevented moving back in loosing core, it sets up to prevent moving back in loosing core on the cover half, the core is worn to locate the cover half with mould benevolence.
For a better understanding and practice, the present invention is described in detail in the following figures in conjunction with the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a schematic structural view of the injection mold of the present invention;
FIG. 2 is a schematic structural view of the core-pulling anti-receding mechanism of the present invention;
FIG. 3 is an exploded view of the core-pulling anti-receding mechanism of the present invention (with parts omitted);
fig. 4 is a schematic sectional view of the core-pulling anti-receding mechanism of the present invention in a mold-closing state (parts are omitted).
Description of the reference numerals:
100-core-pulling anti-withdrawal mechanism, 110-oil cylinder, 120-oil cylinder connecting seat, 121-inclined sliding groove, 130-shovel base, 131-sliding part, 132-moving channel, 140-buckle base, 151-limiting part, 160-mold core, 170-guide sliding strip, 171-clamping part, 180-transition block, 191-wear plate, 192-induction seat, 193-induction switch, 200-fixed mold, 210-mold core.
Detailed Description
In order to better illustrate the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings.
It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Specifically, referring to fig. 1 to 4, the present invention provides a core-pulling anti-receding mechanism 100, which includes an oil cylinder 110; the oil cylinder connecting seat 120 is connected with the oil cylinder 110, the oil cylinder connecting seat 120 is provided with two inclined sliding grooves 121, and the two inclined sliding grooves 121 are arranged in a V shape; the shovel base 130 is internally provided with a moving channel 132, and the shovel base 130 is provided with a movable mold core 160; two buckling bases 140 movably disposed on the moving channel 132 and respectively corresponding to the two inclined sliding grooves 121; the buckle base 140 is provided with a limiting part 151, and the limiting parts 151 are respectively arranged in parallel with the corresponding inclined sliding grooves 121; when the oil cylinder 110 drives the oil cylinder connecting seat 120 to move forward until the limiting part 151 abuts against the wall surface of the inclined sliding groove 121, the oil cylinder connecting seat 120 abuts against the shovel base 130, and the oil cylinder 110 drives the shovel base 130 to move forward through the oil cylinder connecting seat 120.
Compared with the prior art, the core-pulling anti-retreat mechanism 100 provided by the utility model distributes the stress of the injection molding acting force through the oblique sliding fit of the oblique sliding groove 121 and the buckle base 140 in the injection molding process, so that the effective acting force of the injection molding force F on the shovel base 130 and the oil cylinder connecting seat 120 is reduced (namely 2F 1 is less than F); the acting force applied to the oil cylinder 110 is reduced, so that the shovel base 130 and the oil cylinder connecting base 120 are not easy to move backwards, the mold core 160 is effectively prevented from retreating, and the product quality is greatly improved.
In this embodiment, the two sides of the oil cylinder connecting seat 120 and the shovel base 130 are symmetrically provided with the guiding sliding strips 170, the length direction of the guiding sliding strips 170 is parallel to the moving direction of the oil cylinder connecting seat 120 and the shovel base 130, and the oil cylinder connecting seat 120 and the shovel base 130 are limited and guided by the guiding sliding strips 170, so that the oil cylinder connecting seat 120 and the shovel base 130 can move along the guiding sliding strips 170, and the matching movement of the oil cylinder connecting seat 120 and the shovel base 130 is more stable.
In this embodiment, the slide guiding bar 170 is provided with a positioning portion 171, and the positioning portion 171 is in fit and abutting contact with the buckle base 140 to limit the buckle base 140 and the shovel base 130.
In this embodiment, the cylinder connecting seat 120 is connected to the cylinder 110 through a transition block 180, and the cylinder connecting seat 120 is connected to the transition block 180 in a snap-fit manner, so as to reduce the assembly difficulty.
In this embodiment, the cross-section of the transition block 180 is "T" shaped, and the cylinder connection seat 120 is provided with a T-shaped groove for installing the transition block 180. Through T-shaped clamping, the oil cylinder 110 connecting seat and the transition block are connected stably.
In this embodiment, the shovel base 130 is provided with a convex sliding portion 131, and the sliding portion 131 is arranged obliquely in the vertical direction; the core 160 is provided with a slide groove provided corresponding to the slide portion 131 so that the core 160 can move up and down.
In this embodiment, the bottom of the cylinder connecting seat 120 is provided with a wear plate 191 to prevent the cylinder connecting seat 120 from rubbing against the injection mold to cause wear when moving, and the service life of the cylinder connecting seat 120 and the mold is seriously affected.
In this embodiment, the core-pulling anti-receding mechanism 100 further includes: an induction seat 192 connected to the shovel base 130; two of the inductive switches 193 are disposed at both sides of the inductive seat 192. The induction seat 192 moves along with the shovel base 130, and the induction switch 193 generates an induction signal through the induction seat 192 to feed back the position of the shovel base 130, so as to judge whether the shovel base 130 moves in place after the injection mold is opened and closed.
In this embodiment, the inductive switch 193 includes a limit of travel switch. The travel limit switch is installed at a prearranged position, when the induction seat 192 moves along with the shovel base 130 to impact the travel limit switch, the travel limit switch sends out an induction signal to feed back the position of the shovel base 130 at the moment, and the induction seat 192 and the shovel base 130 are limited and protected.
It should be noted that when the core 160 moves to the core pulling position along with the shovel base 130, the sensing seat 192 just strikes against the travel limit switch, and when the injection molding is completed and the buckle base 140 is clamped with the slide guide bar 170, the sensing seat 192 just strikes against another travel limit switch.
The utility model also provides an injection mold, be in including cover half 200 and setting mould benevolence 210 on the cover half 200 still includes as above arbitrary the core pulling prevent moving back mechanism 100, the core pulling prevent moving back mechanism 100 and set up on the cover half 200, core 160 wears to locate the cover half 200 with mould benevolence 210, two inductive switch 193 sets up on the cover half 200.
The utility model discloses a working process:
when the injection mold is opened, the oil cylinder 110 is in a contracted state, and the oil cylinder connecting seat 120 is separated from the shovel base 130.
When the injection mold is closed, the oil cylinder 110 drives the oil cylinder connecting seat 120 to move forwards until the inclined sliding groove 121 abuts against the limiting portion 151 of the buckle base 140, the oil cylinder connecting seat 120 abuts against the shovel base 130, the shovel base 130 and the buckle base 140 are driven to move forwards, the core 160 is moved to the core-pulling position, when the core 160 moves to the core-pulling position along with the shovel base 130, the induction seat 192 just strikes a stroke limit switch, the core 160 is shown to move in place, and the injection molding work of a product can be carried out.
When the injection mold performs injection molding, the effective acting force acting on the shovel base 130 and the oil cylinder connecting base 120 is reduced through the oblique sliding fit of the oblique sliding groove 121 and the buckle base 140, so that the shovel base 130 and the oil cylinder connecting base 120 are not easy to shift backwards, and the quality of a product is ensured.
After the injection molding of the injection mold is completed, the oil cylinder 110 drives the inclined sliding groove 121 to move backwards, at the moment, the two buckling bases 140 move close to each other, the limiting part 151 and the wall surface of the inclined sliding groove 121 are in a butting state, and the buckling bases 140 are always positioned in the inclined sliding groove 121; injection molding force drives shovel base 130 to move backward, and at shovel base 130 in-process that moves backward, two detain base 140 and move dorsad, spacing portion 151 and oblique spout 121 wall no longer butt, until detaining base 140 and corresponding screens portion 171 butt, response seat 192 just strikes another travel switch, shovel base 130 stops moving.
In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (10)
1. The utility model provides a mechanism is prevented moving back by loosing core which characterized in that includes:
an oil cylinder;
the oil cylinder connecting seat is connected with the oil cylinder and provided with two inclined sliding grooves which are arranged in a V shape;
the shovel base is internally provided with a moving channel, and a movable mold core is arranged on the shovel base;
the two buckling bases are movably arranged on the moving channel and respectively correspond to the two inclined sliding chutes; the buckling base is provided with a limiting part, and the limiting parts are respectively arranged in parallel with the corresponding inclined sliding grooves; when the oil cylinder drives the oil cylinder connecting seat to move forwards until the limiting part is abutted against the wall surface of the inclined sliding groove, the oil cylinder connecting seat is abutted against the shovel base, and the oil cylinder drives the shovel base to move forwards through the oil cylinder connecting seat.
2. The core-pulling anti-withdrawal mechanism according to claim 1, characterized in that:
the oil cylinder connecting seat and the two sides of the shovel base are symmetrically provided with guide sliding strips, and the length direction of the guide sliding strips is parallel to the moving direction of the oil cylinder connecting seat and the shovel base.
3. The core-pulling anti-withdrawal mechanism according to claim 2, characterized in that:
the guide sliding strip is provided with a clamping part, and the clamping part is matched and abutted with the buckle base.
4. The core-pulling anti-withdrawal mechanism according to claim 1, characterized in that:
the oil cylinder connecting seat is connected with the oil cylinder through a transition block, and the oil cylinder connecting seat is connected with the transition block in a clamping mode.
5. The core-pulling anti-withdrawal mechanism according to claim 4, characterized in that:
the section of the transition block is in a T shape, and the oil cylinder connecting seat is provided with a T-shaped groove for mounting the transition block.
6. The core-pulling anti-withdrawal mechanism according to claim 1, characterized in that:
the shovel base is provided with a convex sliding part which is obliquely arranged along the vertical direction;
the core is provided with a sliding groove corresponding to the sliding part.
7. The core-pulling anti-withdrawal mechanism according to claim 1, characterized in that:
and the bottom of the oil cylinder connecting seat is provided with a wear-resisting plate.
8. The core-pulling anti-withdrawal mechanism according to claim 1, further comprising:
the induction seat is connected with the shovel base;
and the two inductive switches are arranged on two sides of the inductive seat.
9. The core-pulling anti-withdrawal mechanism according to claim 8, characterized in that:
the inductive switch comprises a travel limit switch.
10. An injection mold comprises a fixed mold and a mold core arranged on the fixed mold, and is characterized by further comprising the core-pulling anti-back mechanism as claimed in any one of claims 1 to 9, wherein the core-pulling anti-back mechanism is arranged on the fixed mold, and the mold core is arranged in the fixed mold and the mold core in a penetrating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222212930.6U CN218660279U (en) | 2022-08-22 | 2022-08-22 | Core-pulling anti-retreating mechanism and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222212930.6U CN218660279U (en) | 2022-08-22 | 2022-08-22 | Core-pulling anti-retreating mechanism and injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN218660279U true CN218660279U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222212930.6U Active CN218660279U (en) | 2022-08-22 | 2022-08-22 | Core-pulling anti-retreating mechanism and injection mold |
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| CN (1) | CN218660279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121535925A (en) * | 2026-01-20 | 2026-02-17 | 浙江工贸职业技术学院(浙江工贸技师学院) | A type of automotive wiring harness mold |
-
2022
- 2022-08-22 CN CN202222212930.6U patent/CN218660279U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121535925A (en) * | 2026-01-20 | 2026-02-17 | 浙江工贸职业技术学院(浙江工贸技师学院) | A type of automotive wiring harness mold |
| CN121535925B (en) * | 2026-01-20 | 2026-07-17 | 浙江工贸职业技术学院(浙江工贸技师学院) | A type of automotive wiring harness mold |
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