CN215703730U - Core-pulling and demolding mechanism for injection mold - Google Patents
Core-pulling and demolding mechanism for injection mold Download PDFInfo
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- CN215703730U CN215703730U CN202122425364.2U CN202122425364U CN215703730U CN 215703730 U CN215703730 U CN 215703730U CN 202122425364 U CN202122425364 U CN 202122425364U CN 215703730 U CN215703730 U CN 215703730U
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- core
- arc
- return bend
- injection mold
- driving block
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 230000008602 contraction Effects 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000008093 supporting effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000002310 elbow joint Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of demoulding mechanisms, and discloses a core-pulling demoulding mechanism for an injection mould, which comprises a driving block, wherein the lower surface of the driving block is provided with an installation base, the upper surface of the installation base is respectively and fixedly connected with two installation slide rails, the lower surface of the driving block is respectively provided with two installation slide grooves in sliding connection with the installation slide rails, the rear side surface of the driving block is fixedly connected with a joint core, the rear side of the joint core is provided with a bent pipe core, a contraction cavity is arranged in the driving block, and the rear side surface of the joint core is provided with an arc-shaped extension hole. This injection mold is with demoulding mechanism of loosing core through with the return bend core finally contract to the shrink cavity in, avoided appearing the condition that the product inner wall damaged like this in the drawing of core drawing the drawing of patterns in-process to circular arc return bend product for circular arc return bend product drawing of patterns efficiency is higher and after the drawing of patterns more accurate, simple structure simultaneously, convenient operation, productivity ratio is high, reduction in manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of demolding mechanisms, in particular to a core-pulling demolding mechanism for an injection mold.
Background
The plastics return bend is as the working of plastics commonly used, and it produces through the mode of moulding plastics usually, and the return bend is moulding plastics in-process loose core structure and is comparatively important to the influence of product, and the in-process of moulding plastics of circular arc return bend generally will use: the elbow joint comprises an elbow core for forming an arc cylindrical inner cavity of an elbow main body and a joint core for forming a cylindrical inner cavity of the elbow joint; during demolding, two core pulling operations are required, for example, in the prior patent publications: CN205951187U, which discloses a core-pulling and demolding mechanism for arc elbow, the scheme is that a sliding block is moved along a sliding rail to be away from a product, the sliding block drives a joint core to move along the sliding rail, so that the joint core is extracted from the product, after the joint core is completely extracted, the sliding block stops moving, and then a rotating shaft is driven to rotate in the circumferential direction, the rotating shaft drives a supporting plate to rotate through a connecting rod, the supporting plate further drives the elbow core to rotate through the sliding rail, so that the elbow core is extracted from the product, and after the elbow core is completely extracted, the rotating shaft stops rotating;
however, the following problems may occur during the operation of the solution: according to the scheme, the joint core is firstly drawn out through a horizontal displacement mode, the joint core and the elbow core are well known to be tightly attached to the inner wall of a product after injection molding is completed, if the horizontal displacement is firstly drawn out, the elbow core can be caused to extrude the inner wall of the arc end of the arc elbow, dents can be formed on the inner wall of the arc elbow, and even the arc end of the arc elbow is broken.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a core-pulling and demolding mechanism for an injection mold, which solves the problem that a joint core can extrude the inner wall of the joint end of an arc bent pipe, and the arc bent pipe can be broken.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a core-pulling demoulding mechanism for an injection mould comprises a driving block, wherein the lower surface of the driving block is provided with an installation base, the upper surface of the installation base is fixedly connected with two installation slide rails respectively, and the lower surface of the driving block is provided with two installation slide grooves in sliding connection with the installation slide rails respectively;
the rear side surface of the driving block is fixedly connected with a joint core, the rear side of the joint core is provided with a bent pipe core, a contraction cavity is formed in the driving block, the rear side surface of the joint core is provided with an arc-shaped extension hole, the front end of the bent pipe core is communicated with the contraction cavity and is matched with the bent pipe core, the front end of the bent pipe core extends into the contraction cavity through the arc-shaped extension hole, and the bent pipe core is connected with the arc-shaped extension hole in a sliding mode.
Preferably, a sealing rubber ring is arranged between the elbow pipe core and the inner wall of the arc-shaped extension hole.
Preferably, the inner wall of the bottom of the contraction chamber is fixedly connected with a driving motor, and an output shaft of the driving motor is fixedly connected with a driving gear.
Preferably, the inner wall of one end of the elbow pipe core, which is positioned in the contraction cavity, is provided with teeth which are meshed and connected with the driving gear.
Preferably, an arc-shaped sliding groove which is in the same vertical position with the bent pipe core is formed in the inner wall of the bottom of the contraction cavity, and the lower surface of one end, located in the contraction cavity, of the bent pipe core is fixedly connected with a connecting block.
Preferably, the lower surface of the connecting block is provided with a supporting pulley which is slidably connected with the arc-shaped sliding groove.
(III) advantageous effects
Compared with the prior art, the utility model provides a core-pulling and demolding mechanism for an injection mold, which has the following beneficial effects:
1. this injection mold is with demoulding mechanism of loosing core through with the return bend core finally contract to the shrink cavity in, avoided appearing the condition that the product inner wall damaged like this in the drawing of core drawing the drawing of patterns in-process to circular arc return bend product for circular arc return bend product drawing of patterns efficiency is higher and after the drawing of patterns more accurate, simple structure simultaneously, convenient operation, productivity ratio is high, reduction in manufacturing cost.
2. This injection mold is with demoulding mechanism of loosing core through being provided with the supporting pulley, and the supporting pulley forms the supporting effect to the return bend core like this, has avoided the return bend core the condition of shake to appear at the in-process of shrink like this, has avoided tooth and driving gear to appear the deviation, stability and smoothness nature when further having ensured the return bend core shrink.
3. This injection mold is with demoulding mechanism of loosing core through being provided with the sealing rubber circle, has increased the leakproofness between return bend core and the arc extension hole like this, therefore return bend core and joint core injection moulding raw materials in the in-process that uses can not enter into the arc extension downthehole, has further ensured the quality after the circular arc return bend is moulded plastics and is accomplished.
Drawings
FIG. 1 is a schematic structural view of a core-pulling and demolding mechanism for an injection mold according to the present invention;
FIG. 2 is a schematic top plan view of a driving block according to the present invention;
FIG. 3 is a schematic diagram of a front plan view of a driving block according to the present invention;
fig. 4 is a schematic top plan view of the collapsed state of the elbow core of the present invention.
In the figure: the device comprises a driving block 1, a mounting base 2, a mounting slide rail 3, a mounting slide groove 4, a bent pipe core 5, a joint core 6, an arc-shaped extending hole 7, a sealing rubber ring 8, a contraction cavity 9, a driving motor 10, a driving gear 11, a tooth 12, an arc-shaped slide groove 13, a connecting block 14 and a supporting pulley 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a core-pulling demoulding mechanism for an injection mould comprises a driving block 1, wherein an installation base 2 is arranged on the lower surface of the driving block 1, two installation slide rails 3 are fixedly connected to the upper surface of the installation base 2 respectively, two installation slide grooves 4 which are connected with the installation slide rails 3 in a sliding manner are formed in the lower surface of the driving block 1 respectively, and a driving assembly is arranged between the driving block 1 and the installation base 2, so that the driving block 1 can be driven to horizontally slide on the installation slide rails 3 through the installation slide grooves 4 by the driving assembly;
further, a joint core 6 is fixedly connected to the rear side surface of the driving block 1, a bent pipe core 5 is arranged on the rear side of the joint core 6, a contraction cavity 9 is formed in the driving block 1, an arc-shaped extension hole 7 is formed in the rear side surface of the joint core 6, the front end of the bent pipe core 5 is communicated with the contraction cavity 9 and is matched with the bent pipe core 5, the front end of the bent pipe core 5 extends into the contraction cavity 9 through the arc-shaped extension hole 7, and meanwhile, the bent pipe core 5 is in sliding connection with the arc-shaped extension hole 7, so that the bent pipe core 5 can be gradually contracted into the contraction cavity 9 through the arc-shaped extension hole 7;
in the embodiment, a sealing rubber ring 8 is further arranged between the pipe bending core 5 and the inner wall of the arc-shaped extension hole 7, so that the sealing performance between the pipe bending core 5 and the arc-shaped extension hole 7 is improved, and therefore, injection molding raw materials cannot enter the arc-shaped extension hole 7 in the use process of the pipe bending core 5 and the joint core 6, and the quality of the arc-shaped bent pipe after injection molding is further guaranteed;
further, a driving motor 10 is fixedly connected to the inner wall of the bottom of the contraction cavity 9, a driving gear 11 is fixedly connected to an output shaft of the driving motor 10, and a tooth 12 meshed with the driving gear 11 is formed on the inner wall of one end, located in the contraction cavity 9, of the elbow core 5, so that the driving gear 11 is started to synchronously rotate the driving motor 10, and the elbow core 5 is displaced in an arc direction under the meshing transmission of the driving gear 11, so that the elbow core 5 can gradually retract into the contraction cavity 9 or extend out of the contraction cavity 9, and thus when an arc elbow product is opened, the driving motor 10 is started first to retract the elbow core 5 into the contraction cavity 9, so that the elbow core 5 is separated from the inner wall of the arc elbow product, and then the elbow driving block 1 is driven by the elbow driving assembly to displace in a horizontal direction, so that the joint core 6 and the arc elbow product are completely separated, the mode avoids the damage of the inner wall of the product in the core-pulling and demoulding process of the arc bent pipe product, so that the demoulding efficiency of the arc bent pipe product is higher, the demoulding is more accurate, the structure is simple, the operation is convenient, the production rate is high, and the manufacturing cost is reduced;
further offer the arc spout 13 that is in same vertical position with return bend core 5 on the bottom inner wall of shrink cavity 9 in this embodiment, return bend core 5 is located shrink cavity 9 in one end lower surface fixedly connected with a plurality of connecting block 14 simultaneously, connecting block 14 carries out here too much repeated description according to actual conditions, connecting block 14's lower surface is provided with the supporting pulley 15 with arc spout 13 sliding connection, consequently, make supporting pulley 15 form the supporting effect to return bend core 5 through this kind of mode, the condition of return bend core 5 shake appears in the in-process of shrink has been avoided like this, tooth 12 and driving gear 11 have been avoided the deviation to appear, stability and smoothness when further having ensured return bend core 5 to shrink.
The working principle is as follows:
this core pulling demoulding mechanism for injection mold is when using, when circular arc return bend product die sinking, start driving motor 10 at first for driving gear 11 rotates in step, return bend core 5 carries out the arc direction displacement under driving gear 11 meshing transmission like this, return bend core 5 contracts like this and advances to contract in the cavity 9, make take out between return bend core 5 and the circular arc return bend product inner wall and separate, rethread drive assembly drives drive block 1 and carries out the horizontal direction displacement, make joint core 6 take out completely with circular arc return bend product and separate.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an injection mold is with drawing core demoulding mechanism, includes drive block (1), its characterized in that: the lower surface of the driving block (1) is provided with an installation base (2), the upper surface of the installation base (2) is fixedly connected with two installation sliding rails (3) respectively, and the lower surface of the driving block (1) is provided with two installation sliding grooves (4) which are connected with the installation sliding rails (3) in a sliding manner respectively;
the rear side surface fixedly connected with of driving block (1) connects core (6), the rear side that connects core (6) is provided with return bend core (5), set up contraction cavity (9) in driving block (1), the rear side surface of connecting core (6) has been seted up the front end and has been communicated with each other with contraction cavity (9) and extend hole (7) with the identical arc of return bend core (5), the front end of return bend core (5) extends hole (7) through the arc and extends into contraction cavity (9), return bend core (5) extend hole (7) sliding connection with the arc.
2. The core-pulling and demolding mechanism for the injection mold according to claim 1, characterized in that: and a sealing rubber ring (8) is arranged between the bent pipe core (5) and the inner wall of the arc-shaped extension hole (7).
3. The core-pulling and demolding mechanism for the injection mold according to claim 1, characterized in that: the inner wall of the bottom of the contraction cavity (9) is fixedly connected with a driving motor (10), and an output shaft of the driving motor (10) is fixedly connected with a driving gear (11).
4. The core-pulling and demolding mechanism for the injection mold according to claim 3, characterized in that: and the inner wall of one end of the elbow pipe core (5) positioned in the contraction cavity (9) is provided with teeth (12) which are meshed and connected with the driving gear (11).
5. The core-pulling and demolding mechanism for the injection mold according to claim 3, characterized in that: an arc-shaped sliding groove (13) which is in the same vertical position with the bent pipe core (5) is formed in the inner wall of the bottom of the contraction cavity (9), and the lower surface of one end, located in the contraction cavity (9), of the bent pipe core (5) is fixedly connected with a connecting block (14).
6. The core-pulling and demolding mechanism for the injection mold according to claim 5, characterized in that: the lower surface of the connecting block (14) is provided with a supporting pulley (15) which is connected with the arc-shaped sliding groove (13) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122425364.2U CN215703730U (en) | 2021-09-30 | 2021-09-30 | Core-pulling and demolding mechanism for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122425364.2U CN215703730U (en) | 2021-09-30 | 2021-09-30 | Core-pulling and demolding mechanism for injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215703730U true CN215703730U (en) | 2022-02-01 |
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ID=80027448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122425364.2U Expired - Fee Related CN215703730U (en) | 2021-09-30 | 2021-09-30 | Core-pulling and demolding mechanism for injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215703730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037842A (en) * | 2023-03-30 | 2023-05-02 | 北京德信友和科技有限公司 | Mechanical clamping jaw for operating tool in mechanical equipment |
-
2021
- 2021-09-30 CN CN202122425364.2U patent/CN215703730U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116037842A (en) * | 2023-03-30 | 2023-05-02 | 北京德信友和科技有限公司 | Mechanical clamping jaw for operating tool in mechanical equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |