CN103448217B - A kind of oblique core_pulling demoulding device of helical rack transmission - Google Patents
A kind of oblique core_pulling demoulding device of helical rack transmission Download PDFInfo
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- CN103448217B CN103448217B CN201310406355.6A CN201310406355A CN103448217B CN 103448217 B CN103448217 B CN 103448217B CN 201310406355 A CN201310406355 A CN 201310406355A CN 103448217 B CN103448217 B CN 103448217B
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- helical rack
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- rod
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000004804 winding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The invention discloses a kind of oblique core_pulling demoulding device of helical rack transmission, comprise block of tiltedly loosing core (1), push rod (2), front push rod (3), rear push-rod (31), guide pad of loosing core (4), push rod guide pad (5), be fixedly connected with block (6).The device that the present invention adopts above-mentioned parts to form, will loose core guide pad and push rod guide pad of front push rod and rear push-rod horizontally slips series winding; The upper helical rack of block of tiltedly loosing core slides be connected with a joggle with front A helical rack, rear A helical rack loosing core in guide pad, and the lower helical rack of push rod slides be connected with a joggle with front B helical rack, rear B helical rack in push rod guide pad; During work, front push rod and rear push-rod move right, motion extracted out by the downward oblique work of block of tiltedly loosing core, push rod ejects the technical scheme of motion vertically upward simultaneously, by helical rack transmission, what make injection mold tiltedly takes out the demoulding, reaches raising and tiltedly takes out stability and production efficiency, reduce the object of mould body, weight and cost.
Description
Technical field
The present invention relates to a kind of stripper apparatus of injection mold, specifically referring to the oblique core_pulling demoulding device for block of tiltedly loosing core tiltedly being taken out from the elongate tubular structure position of product a kind of helical rack transmission of the demoulding.
Background technology
The mode that the core_pulling demoulding device of prior art adopts oil cylinder to pull block of loosing core to detach product carries out the demoulding, but cylinder movement less stable, such as there is the situation that rollback is not in place sometimes, moreover the run duration of oil cylinder core-pulling mechanism is before after mould die sinking, product is deviate from respectively and before product deviates from rear mold matched moulds, add the molding cycle of product, and the volume and weight of mould is not only increased in the method that mold exterior adds oil cylinder, and add the manufacturing cost of mould, therefore, prior art existence and stability is poor, the formed product cycle is long, volume is large, Heavy Weight and the high problems and shortcomings of manufacturing cost.
Summary of the invention
For above-mentioned prior art Problems existing with not enough, the present invention adopts by block of tiltedly loosing core, push rod, front push rod, rear push-rod, to loose core guide pad, push rod guide pad, be fixedly connected with the device that block is formed, tiltedly loose core the cylinder bottom of block be provided with before and after symmetrical, acclivitous helical teeth row are called helical rack from left to right, the cylinder bottom of push rod is provided with front and back symmetry, helical teeth row downward-sloping are from left to right called lower helical rack, front push rod, rear push-rod is the semicolumn rod component being provided with helical rack, wherein, the left part of front push rod trailing flank is provided with acclivitous helical teeth row from left to right and is called front A helical rack, the right part of front push rod trailing flank is provided with helical teeth row downward-sloping from left to right and is called front B helical rack, rear push-rod is symmetrical identical with before and after front push rod, and the left part of rear push-rod leading flank is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of rear push-rod leading flank is provided with helical teeth row downward-sloping from left to right and is called rear B helical rack, guide pad of loosing core is provided with two left and right directions and the A push rod guide hole be parallel to each other, be provided with a through hole be tilted to the right from top to bottom between two A push rod guide holes and be called oblique guide hole, and A push rod guide hole communicates with oblique guide hole, push rod guide pad is provided with two B push rod guide holes corresponding with A push rod guide hole, the through hole being provided with an above-below direction between two B push rod guide holes is called straight guide hole, and B push rod guide hole communicates with straight guide hole, guide pad of loosing core is positioned at the left of push rod guide pad, and the trailing flank of front push rod is parallel with the leading flank of rear push-rod relatively through A push rod guide hole and B push rod guide hole, and will loose core guide pad and the slip of push rod guide pad are connected on front push rod and rear push-rod, the upper helical rack of block of tiltedly loosing core interts and slides be connected with a joggle with front A helical rack, rear A helical rack in oblique guide hole, and the lower helical rack of push rod interts and slides be connected with a joggle with front B helical rack, rear B helical rack in straight guide hole, be fixedly connected with block front push rod is fixedly connected with the right-hand member of rear push-rod, during application, guide pad of loosing core is fixedly connected with the support plate of mould with push rod guide pad, is fixedly connected with block and is connected with the drive unit of mould, loose core when ejecting, drive unit pulls front push rod and rear push-rod to move right through being fixedly connected with block, and by the helical teeth effect of engagement of sliding, block of tiltedly loosing core is done downward oblique extractions and moved, and push rod ejects motion vertically upward, during reset, drive unit push rod and rear push-rod before being fixedly connected with block promotion reset left, block of tiltedly loosing core is upward to reset, the technical scheme that push rod resets vertically downward, provides a kind of oblique core_pulling demoulding device of helical rack transmission, is intended to by helical rack transmission, what make injection mold be provided with elongate tubular structure position for product tiltedly takes out the demoulding, reach and improve stability, shortening formed product cycle, reduce mould body and weight, reduce the object of die manufacturing cost.
The object of the present invention is achieved like this: a kind of oblique core_pulling demoulding device of helical rack transmission, comprise block of tiltedly loosing core, push rod, front push rod, rear push-rod, guide pad of loosing core, push rod guide pad, be fixedly connected with block, wherein: described block of tiltedly loosing core is the steel components of up-small and down-big cylinder step rod, the top small stair cylinder of block of tiltedly loosing core is provided with the profile of coincideing with the elongate tubular structure of product, and the front and back sides of the bottom large step cylinder of block of tiltedly loosing core is arranged with acclivitous helical teeth row from left to right and is called helical rack;
Described push rod is the steel components of cylinder rod, and the front and back sides of the bottom cylinder of push rod is arranged with helical teeth row downward-sloping from left to right and is called lower helical rack;
Described front push rod or rear push-rod are the semicolumn rod component that a side is provided with helical rack, wherein, the left part of the trailing flank of described front push rod is provided with acclivitous helical teeth row from left to right and is called front A helical rack, and the right part of the trailing flank of front push rod is provided with helical teeth row downward-sloping from left to right and is called front B helical rack; The planform of described rear push-rod is symmetrical identical with before and after the planform of front push rod, the left part of the leading flank of rear push-rod is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of the leading flank of rear push-rod is provided with helical teeth row downward-sloping from left to right and is called rear B helical rack; Described helical teeth row refer to oblique teeth arranged in columns;
Described guide pad of loosing core is the steel components of rectangular block shape, guide pad Central Symmetry of loosing core is provided with left and right directions and two of horizontal parallel through holes are called A push rod guide hole, be provided with a through hole be tilted to the right from top to bottom between two described A push rod guide holes and be called oblique guide hole, the hole of described A push rod guide hole is inner to communicate with the hole of described oblique guide hole is inner crossing;
Described push rod guide pad is the steel components of rectangular block shape, push rod guide pad is provided with corresponding two the identical through holes of A push rod guide hole described with two of guide pad of loosing core and is called B push rod guide hole, the through hole being provided with an above-below direction between two described B push rod guide holes is called straight guide hole, and the hole of described B push rod guide hole is inner to communicate with the hole of described straight guide hole is inner crossing;
Described is fixedly connected with the steel components that block is rectangular block shape, is fixedly connected with block and is provided with corresponding two the identical through holes of A push rod guide hole described with two of guide pad of loosing core and is called connecting hole;
Guide pad of loosing core is positioned at the left of push rod guide pad, and the trailing flank of front push rod is parallel with the leading flank of rear push-rod is each passed through described A push rod guide hole and described B push rod guide hole relatively, and will loose core guide pad and push rod guide pad slide and be connected on front push rod and rear push-rod; The described upper helical rack of block of tiltedly loosing core interts and slides be connected with a joggle with described front A helical rack, rear A helical rack in the described oblique guide hole of guide pad of loosing core, and the described lower helical rack of push rod interts and slides be connected with a joggle with described front B helical rack, rear B helical rack in the described straight guide hole of push rod guide pad; Be fixedly connected with block by described connecting hole, front push rod to be fixedly connected with the right-hand member of rear push-rod.
The face, direction of structure representation is divided into up, down, left, right, front, rear side, wherein, before be face in the face of apparatus main body, after be and described before relative face.
Operation principle and beneficial effect
During application, guide pad of loosing core is fixedly connected with the support plate of mould with push rod guide pad, is fixedly connected with block and is connected with the drive unit of mould;
Loose core when ejecting, drive unit pulls front push rod and rear push-rod to move right through being fixedly connected with block, and by the helical teeth effect of engagement of sliding, block of tiltedly loosing core does oblique motion of loosing core downwards, meanwhile, push rod work vertically upward eject motion;
During reset, drive unit push rod and rear push-rod before being fixedly connected with block promotion reset left, and block of tiltedly loosing core is oblique upwards to be resetted, and push rod resets vertically downward.
This apparatus structure is simple, reliable operation, and what be applied to that product is provided with the injection mold of elongate tubular structure position tiltedly takes out the demoulding, improves stability, shortens the cycle of formed product, reduce body and the weight of mould, thus reduce die manufacturing cost.
Above-mentioned, the present invention adopts by block of tiltedly loosing core, push rod, front push rod, rear push-rod, guide pad of loosing core, push rod guide pad, is fixedly connected with the device that block forms, and block of tiltedly loosing core is provided with helical rack, and push rod is provided with lower helical rack, the left part of front push rod trailing flank is provided with front A helical rack, and the right part of front push rod trailing flank is provided with front B helical rack, the left part of rear push-rod leading flank is provided with rear A helical rack, and the right part of rear push-rod leading flank is provided with rear B helical rack, guide pad of loosing core is provided with A push rod guide hole and oblique guide hole, and push rod guide pad is provided with B push rod guide hole and straight guide hole, and front push rod and rear push-rod to horizontally slip series winding through will loose core guide pad and push rod guide pad of A push rod guide hole and B push rod guide hole, the upper helical rack of block of tiltedly loosing core slides be connected with a joggle with front A helical rack, rear A helical rack in oblique guide hole, and the lower helical rack of push rod slides be connected with a joggle with front B helical rack, rear B helical rack in straight guide hole, be fixedly connected with block front push rod is fixedly connected with the right-hand member of rear push-rod, during application, guide pad of loosing core is fixedly connected with the support plate of mould with push rod guide pad, is fixedly connected with block and is connected with the drive unit of mould, loose core when ejecting, front push rod and rear push-rod move right, and motion extracted out by the downward oblique work of block of tiltedly loosing core, and meanwhile, push rod ejects motion vertically upward, during reset, drive unit push rod and rear push-rod before being fixedly connected with block promotion reset left, block of tiltedly loosing core is upward to reset, the technical scheme that push rod resets vertically downward, overcome prior art existence and stability poor, the formed product cycle is long, volume is large, Heavy Weight and the high problems and shortcomings of manufacturing cost, the oblique core_pulling demoulding device of a kind of helical rack transmission provided, by helical rack transmission, what make injection mold be provided with elongate tubular structure position for product tiltedly takes out the demoulding, reach raising stability, shorten the formed product cycle, reduce mould body and weight, reduce the object of die manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the axle geodesic structure schematic diagram of the oblique core_pulling demoulding device of a kind of helical rack transmission of the present invention;
Fig. 2 is the front view structural representation of the oblique core_pulling demoulding device of a kind of helical rack transmission of the present invention;
Fig. 3 is the oblique core_pulling demoulding device of a kind of helical rack transmission of the present invention, and being operated in looses core ejects the principle schematic of tense.
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In figure: block 1 of tiltedly loosing core, push rod 2, front push rod 3, rear push-rod 31, guide pad 4 of loosing core, push rod guide pad 5, be fixedly connected with block 6, product 01, resilient key 02.
Detailed description of the invention
Consult Fig. 1 ~ Fig. 3, the oblique core_pulling demoulding device of a kind of helical rack transmission of the present invention, comprise block 1 of tiltedly loosing core, push rod 2, front push rod 3, rear push-rod 31, guide pad 4 of loosing core, push rod guide pad 5, be fixedly connected with block 6, wherein: described block 1 of tiltedly loosing core is the steel components of up-small and down-big cylinder step rod, the top small stair cylinder of block 1 of tiltedly loosing core is provided with the profile of coincideing with the elongate tubular structure of product 01, and the front and back sides of the bottom large step cylinder of block 1 of tiltedly loosing core is arranged with acclivitous helical teeth row from left to right and is called helical rack;
Described push rod 2 is the steel components of cylinder rod, and the front and back sides of the bottom cylinder of push rod 2 is arranged with helical teeth row downward-sloping from left to right and is called lower helical rack;
Described front push rod 3 or rear push-rod 31 are the semicolumn rod component that a side is provided with helical rack, wherein, the left part of the trailing flank of described front push rod 3 is provided with acclivitous helical teeth row from left to right and is called front A helical rack, and the right part of the trailing flank of front push rod 3 is provided with helical teeth row downward-sloping from left to right and is called front B helical rack; The planform of described rear push-rod 31 is symmetrical identical with before and after the planform of front push rod 3, the left part of the leading flank of rear push-rod 31 is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of the leading flank of rear push-rod 31 is provided with helical teeth row downward-sloping from left to right and is called rear B helical rack; Described helical teeth row refer to oblique teeth arranged in columns;
Described guide pad 4 of loosing core is the steel components of rectangular block shape, guide pad 4 Central Symmetry of loosing core is provided with left and right directions and two of horizontal parallel through holes are called A push rod guide hole, be provided with a through hole be tilted to the right from top to bottom between two described A push rod guide holes and be called oblique guide hole, the hole of described A push rod guide hole is inner to communicate with the hole of described oblique guide hole is inner crossing;
Described push rod guide pad 5 is the steel components of rectangular block shape, push rod guide pad 5 is provided with corresponding two the identical through holes of A push rod guide hole described with two of guide pad 4 of loosing core and is called B push rod guide hole, the through hole being provided with an above-below direction between two described B push rod guide holes is called straight guide hole, and the hole of described B push rod guide hole is inner to communicate with the hole of described straight guide hole is inner crossing;
Described is fixedly connected with the steel components that block 6 is rectangular block shape, is fixedly connected with block 6 and is provided with corresponding two the identical through holes of A push rod guide hole described with two of guide pad 4 of loosing core and is called connecting hole;
Guide pad 4 of loosing core is positioned at the left of push rod guide pad 5, the trailing flank of front push rod 3 is parallel with the leading flank of rear push-rod 31 is each passed through described A push rod guide hole and described B push rod guide hole relatively, and will loose core guide pad 4 and push rod guide pad 5 slide and be connected on front push rod 3 and rear push-rod 31; The described upper helical rack of block 1 of tiltedly loosing core interts and slides be connected with a joggle with described front A helical rack, rear A helical rack in the described oblique guide hole of guide pad 4 of loosing core, and the described lower helical rack of push rod 2 interts and slides be connected with a joggle with described front B helical rack, rear B helical rack in the described straight guide hole of push rod guide pad 5; Be fixedly connected with block 6 by described connecting hole, front push rod 3 to be fixedly connected with the right-hand member of rear push-rod 31.
The face, direction of structure representation is divided into up, down, left, right, front, rear side, wherein, before be face in the face of apparatus main body, after be and described before relative face.
Operation principle and beneficial effect
During application, guide pad 4 of loosing core is fixedly connected with the support plate of mould with push rod guide pad 5, is fixedly connected with block 6 and is connected with the drive unit of mould;
Loose core when ejecting, drive unit pulls front push rod 3 and rear push-rod 31 to move right through being fixedly connected with block 6, and by the helical teeth effect of engagement of sliding, block 1 of tiltedly loosing core does oblique motion of loosing core downwards, meanwhile, push rod 2 do vertically upward eject motion;
During reset, drive unit is through being fixedly connected with block 6 and promoting front push rod 3 and rear push-rod 31 resetting left, and tiltedly loosing core, block 1 is oblique upwards to be resetted, and push rod 2 resets vertically downward.
This apparatus structure is simple, reliable operation, and what be applied to that product is provided with the injection mold of elongate tubular structure position tiltedly takes out the demoulding, improves stability, shortens the cycle of formed product, reduce body and the weight of mould, thus reduce die manufacturing cost.
Claims (1)
1. the oblique core_pulling demoulding device of a helical rack transmission, comprise block of tiltedly loosing core (1), push rod (2), front push rod (3), rear push-rod (31), to loose core guide pad (4), push rod guide pad (5), be fixedly connected with block (6), it is characterized in that: described block of tiltedly loosing core (1) is the steel components of up-small and down-big cylinder step rod, the top small stair cylinder of block (1) of tiltedly loosing core is provided with the profile of coincideing with the elongate tubular structure of product (01), the front and back sides of bottom large step cylinder of block (1) of tiltedly loosing core is arranged with acclivitous helical teeth row from left to right and is called helical rack,
The steel components that described push rod (2) is cylinder rod, the front and back sides of the bottom cylinder of push rod (2) is arranged with helical teeth row downward-sloping from left to right and is called lower helical rack;
Described front push rod (3) or rear push-rod (31) are the semicolumn rod component that a side is provided with helical rack, wherein, the left part of the trailing flank of described front push rod (3) is provided with acclivitous helical teeth row from left to right and is called front A helical rack, and the right part of the trailing flank of front push rod (3) is provided with helical teeth row downward-sloping from left to right and is called front B helical rack; The planform of described rear push-rod (31) is symmetrical identical with before and after the planform of front push rod (3), the left part of the leading flank of rear push-rod (31) is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of the leading flank of rear push-rod (31) is provided with helical teeth row downward-sloping from left to right and is called rear B helical rack; Described helical teeth row refer to oblique teeth arranged in columns;
The steel components that described guide pad of loosing core (4) is rectangular block shape, guide pad (4) Central Symmetry of loosing core is provided with left and right directions and two of horizontal parallel through holes are called A push rod guide hole, be provided with a through hole be tilted to the right from top to bottom between two described A push rod guide holes and be called oblique guide hole, the hole of described A push rod guide hole is inner to communicate with the hole of described oblique guide hole is inner crossing;
The steel components that described push rod guide pad (5) is rectangular block shape, push rod guide pad (5) is provided with corresponding two the identical through holes of A push rod guide hole described with two of guide pad of loosing core (4) and is called B push rod guide hole, the through hole being provided with an above-below direction between two described B push rod guide holes is called straight guide hole, and the hole of described B push rod guide hole is inner to communicate with the hole of described straight guide hole is inner crossing;
Described is fixedly connected with the steel components that block (6) is rectangular block shape, is fixedly connected with block (6) and is provided with corresponding two the identical through holes of A push rod guide hole described with two of guide pad of loosing core (4) and is called connecting hole;
Guide pad (4) of loosing core is positioned at the left of push rod guide pad (5), the trailing flank of front push rod (3) is parallel with the leading flank of rear push-rod (31) is each passed through described A push rod guide hole and described B push rod guide hole relatively, and will loose core guide pad (4) and push rod guide pad (5) slide and be connected on front push rod (3) and rear push-rod (31); The described upper helical rack of block (1) of tiltedly loosing core interts and slides be connected with a joggle with described front A helical rack, rear A helical rack in the described oblique guide hole of guide pad of loosing core (4), and the described lower helical rack of push rod (2) interts in the described straight guide hole of push rod guide pad (5) and described front B helical rack, rear B helical rack slide and be connected with a joggle; Be fixedly connected with block (6) by described connecting hole, the right-hand member of front push rod (3) with rear push-rod (31) to be fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406355.6A CN103448217B (en) | 2013-08-30 | 2013-08-30 | A kind of oblique core_pulling demoulding device of helical rack transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406355.6A CN103448217B (en) | 2013-08-30 | 2013-08-30 | A kind of oblique core_pulling demoulding device of helical rack transmission |
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| Publication Number | Publication Date |
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| CN103448217A CN103448217A (en) | 2013-12-18 |
| CN103448217B true CN103448217B (en) | 2015-09-02 |
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| CN201310406355.6A Expired - Fee Related CN103448217B (en) | 2013-08-30 | 2013-08-30 | A kind of oblique core_pulling demoulding device of helical rack transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2542024B1 (en) * | 2014-01-28 | 2016-05-12 | Comercial de Útiles y Moldes, S.A. | Parts demoulding device |
| CN107283910B (en) * | 2017-07-21 | 2023-05-26 | 中铁隆昌铁路器材有限公司 | Automatic demolding device and demolding method for composite brake shoe |
| CN108670781A (en) * | 2018-04-28 | 2018-10-19 | 芜湖凯德机械制造有限公司 | A kind of micro fatigue crack device |
| CN108748904B (en) * | 2018-07-24 | 2023-09-26 | 宁波瑞元模塑有限公司 | Anti-pulling anti-collision device for opening oil filling small door |
| CN111264573A (en) * | 2020-03-25 | 2020-06-12 | 湖北卧龙神厨食品股份有限公司 | Branding machine |
| CN113689803A (en) * | 2020-05-19 | 2021-11-23 | 四川精创通信网络维护有限公司 | Electronic safety sign with lock catch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359521A (en) * | 1986-08-29 | 1988-03-15 | Matsushita Electric Ind Co Ltd | Integral-molding tool of intermeshed gears and method thereof |
| DE19616008C1 (en) * | 1996-04-23 | 1997-06-19 | Siegfried Hofmann Gmbh Werkzeu | Gearing for linear lift movement of tool part, especially for ejection or replacement of ejector of injection moulding tool |
| US6238202B1 (en) * | 1999-02-26 | 2001-05-29 | Unique Mould Makers Limited | Apparatus for ejecting threaded injection molded parts |
| CN201371556Y (en) * | 2009-02-23 | 2009-12-30 | 福星塑胶模具(深圳)有限公司 | Injection mold slide core-pulling mechanism |
| CN203438501U (en) * | 2013-08-30 | 2014-02-19 | 宁波双林模具有限公司 | Inclined core-pulling demoulding device adopting inclined rack transmission |
-
2013
- 2013-08-30 CN CN201310406355.6A patent/CN103448217B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359521A (en) * | 1986-08-29 | 1988-03-15 | Matsushita Electric Ind Co Ltd | Integral-molding tool of intermeshed gears and method thereof |
| DE19616008C1 (en) * | 1996-04-23 | 1997-06-19 | Siegfried Hofmann Gmbh Werkzeu | Gearing for linear lift movement of tool part, especially for ejection or replacement of ejector of injection moulding tool |
| US6238202B1 (en) * | 1999-02-26 | 2001-05-29 | Unique Mould Makers Limited | Apparatus for ejecting threaded injection molded parts |
| CN201371556Y (en) * | 2009-02-23 | 2009-12-30 | 福星塑胶模具(深圳)有限公司 | Injection mold slide core-pulling mechanism |
| CN203438501U (en) * | 2013-08-30 | 2014-02-19 | 宁波双林模具有限公司 | Inclined core-pulling demoulding device adopting inclined rack transmission |
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| CN103448217A (en) | 2013-12-18 |
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