CN102689420A - In-mold gate automatic resection mechanism - Google Patents

In-mold gate automatic resection mechanism Download PDF

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Publication number
CN102689420A
CN102689420A CN2011100697549A CN201110069754A CN102689420A CN 102689420 A CN102689420 A CN 102689420A CN 2011100697549 A CN2011100697549 A CN 2011100697549A CN 201110069754 A CN201110069754 A CN 201110069754A CN 102689420 A CN102689420 A CN 102689420A
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China
Prior art keywords
mould
executive component
actuated element
gate
thimble
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Granted
Application number
CN2011100697549A
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Chinese (zh)
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CN102689420B (en
Inventor
曾桂桥
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Mitac Precision Technology Kunshan Ltd
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Mitac Precision Technology Kunshan Ltd
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Priority to CN201110069754.9A priority Critical patent/CN102689420B/en
Publication of CN102689420A publication Critical patent/CN102689420A/en
Application granted granted Critical
Publication of CN102689420B publication Critical patent/CN102689420B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention provides an in-mold gate automatic resection mechanism, which is applied in a plastic mold. When plastic filling is over and pressure retaining and cooling are conducted, a drive element starts to act and makes an execution element rotate through power transmission of a transmission assembly. A concave knife edge at the upper end of the execution element can resect a gate integrally so as to separate a flow channel from a plastic product completely. Compared with the prior art, the in-mold gate automatic resection mechanism of the invention can automatically resect the gate inside the mold in the product cooling phase so as to separate the gate from the product completely, thus omitting the process of gate treatment after mold opening, shortening the product production cycle, and reducing the production cost.

Description

The mould ingate excises mechanism automatically
[technical field]
The present invention relates to a kind of mold mechanism, particularly a kind of mould ingate of plastic mould excises mechanism automatically.
[background technology]
Cast gate is the melten gel passage that connects runner and die cavity in the running gate system of ejection shaping die.Side gate and tab gate are cast gate design the most commonly used in the plastic mould; That the advantage of this type of cast gate design is that easy to process, pressure decreases is little, be convenient to revise; Its shortcoming is to be to link together with runner after the product depanning; Need artificial excision cast gate or excise cast gate with special tool, thereby need drop into certain manpower and materials for this reason, the whole production cycle also has certain prolongation; In the process of excision cast gate, also can produce certain faulty materials and defective products in addition, finally cause the rising of production cost.
Under the increasingly high production model of automated production degree now, be necessary to develop the mechanism of the inner automatic desprucing of a kind of plastic mould that shortens the production cycle, reduces production costs in fact.
[summary of the invention]
In view of this, the object of the present invention is to provide a kind of mould ingate that shortens the production cycle, reduces production costs to excise mechanism automatically.
In order to achieve the above object, the present invention provides a kind of mould ingate to excise mechanism automatically, is applied in the mould, and this mould comprises a caster, a male model plate and a liftout plate, it is characterized in that, this mould ingate excises mechanism automatically and comprises:
Certain hyte part; It comprises a location board and a thimble, and this location board is fixedly arranged in this male model plate, and is provided with a manhole in the mould open/close direction; This thimble can be arranged at the below of this mould gate up and downly; Its lower end is fixedly arranged on this liftout plate, and its main body runs through this male model plate, this location board and this male model benevolence, and can be up and down in the manhole of this board;
One executive component; This executive component is a rotary cutter; But its main body be columnar structured and left rotation and right rotation be sheathed on this thimble, its upper end glue-feeder when being provided with a spill edge of a knife as formed product, but its left rotation and right rotation ground, lower end inserts the manhole of this board and the gap of this thimble; Also be provided with a polygon force structure on the main body of this executive component, but this force structure left rotation and right rotation be snapped on this location board;
One driving element, the outside that it is fixedly arranged on this male model plate is used to this executive component driving force is provided;
One transmission component; It comprises one first actuated element and one second actuated element; One end of this first actuated element is connected on this driving element; Its other end and this second actuated element is hinged or engagement, this second actuated element engage sleeves is located on the polygon force structure of this executive component, and the driving force of this driving element converts the torsion that makes the rotation of this executive component into through this transmission component.
Preferably, this driving element is a cylinder, and the piston rod of this cylinder provides the driving force of front-rear reciprocation movement, and this driving force converts the torsion that makes this executive component left rotation and right rotation into through this transmission component.
Preferably; This first actuated element is a connecting rod; Second actuated element is a fork, and an end engage sleeves of this fork is located on the polygon force structure of this executive component, and its other end is provided with a guide runner; One end of this connecting rod is fixed on the piston of this cylinder, and its other end is articulated on the guide runner of this fork movably.
Preferably; This first actuated element is a gear, and this second actuated element is a tooth bar, and this gear matched is sheathed on the polygon force structure of this executive component; This tooth bar one end is fixed on the piston of this cylinder, and this gear of the tooth of its side engagement carries out power transmission.
Mould ingate of the present invention excises mechanism automatically; Be applied to a plastic mould; When plastic cement sand off and pressurize cooling, driving element begins to move and the transmission of power through this transmission component, makes this executive component rotation; The spill edge of a knife of its upper end makes runner separate fully with plastic cement products the complete cut-out of cast gate; After cooling forming finished, the mould die sinking also ejected product; Liftout plate resets then, the mould matched moulds, and this driving element resets and the mating reaction through this transmission component simultaneously, and this executive component reverse rotation is resetted, and mould gets into next molding cycle.
Compared to prior art, mould ingate of the present invention excises mechanism automatically, just can be at the mould inside automatic break gate at the product cooling stage; Make it to separate fully with product; Save cast gate and after die sinking, carried out treatment procedures, shortened the production cycle of product, reduced production cost.
[description of drawings]
Fig. 1 excises the sketch map of mechanism in an embodiment automatically for mould ingate of the present invention.
Fig. 2 is the internal structure sketch map of Fig. 1.
Fig. 3 is the partial enlarged drawing among Fig. 2.
Fig. 4 excises the structural representation of the executive component of mechanism automatically for mould ingate of the present invention.
Fig. 5 excises the structural representation of mechanism in another embodiment automatically for mould ingate of the present invention.
[specific embodiment]
The below combines the accompanying drawing specific embodiments of the invention to describe in further detail.
Embodiment 1
Please refer to Fig. 1 to Fig. 4; Mould ingate of the present invention excises mechanism automatically and is applied in the plastic mould; Be used to produce a product 10; This plastic mould comprises a caster 001, a male model plate 002 and a liftout plate 005, plastic cement filling moulding one plastic cement products 10 and runner 11 behind this mould matched moulds, and the glue-feeder of this runner 11 designs for side gate.This mould ingate excises mechanism automatically and comprises a location board 20, a thimble 30, a rotary cutter 40, a fork 50, a connecting rod 60 and a cylinder 70.
This location board 20 is fixedly arranged in this male model plate 002; And be provided with a manhole in this mould open/close direction; This thimble 30 is movably set in the below of this mould gate; Its lower end is fixedly arranged on this liftout plate 003, and its main body runs through this male model plate 002 and this location board 20, and can be up and down in this locatees the manhole of board 20.
But the main body of this rotary cutter 40 be columnar structured and left rotation and right rotation be sheathed on this thimble 30; Glue-feeder when its upper end is provided with a spill edge of a knife 41 as these product 10 moulding; But its left rotation and right rotation ground, lower end inserts the manhole of this location board 20 and the gap of this thimble 30; Also be provided with a hexagon force structure 42 on the main body of this rotary cutter 40; But be snapped on this location board 20 to these hexagon force structure 42 left rotation and right rotation; This hexagon force structure is added twisting force drive rotary cutter 40 and is rotated, thereby this spill edge of a knife 41 of these rotary cutter 40 upper ends makes this runner 11 separate fully with this plastic cement products 10 the complete cut-out of cast gate;
One end of this fork 50 is provided with a hexagon through hole, the hexagon force structure 42 of the size of this hexagon through hole and this rotary cutter 40 big or small suitable, and these fork 50 nationalitys are sheathed on this rotary cutter 40 by this hexagon through hole; The other end of this fork 50 begins to have a strip through hole guide runner.One end of this connecting rod 60 is welded on the piston of this cylinder 70 the two is become one, and its other end is articulated on the strip through hole guide runner of this fork 50 through a pin.This cylinder 70 is fixedly arranged on the outside of this male model plate 002, and the piston of this cylinder 70 provides the driving force of front-rear reciprocation movement, and this driving force converts the torsion that makes these rotary cutter 40 left rotation and right rotation into through this connecting rod 60 and this fork 50.
The course of work: when plastic cement sand off and pressurize cooling; The piston forward of this cylinder 70 is released; Promote these fork 50 counter-clockwise swings through this connecting rod 60; Thereby making this rotary cutter 40 is that rotating shaft is rotated counterclockwise with this thimble 30, and the spill edge of a knife 42 of its upper end makes this runner 11 separate fully with this plastic cement products 10 the complete cut-out of cast gate; After cooling forming finishes, this mould die sinking, this liftout plate moves upward, and the ejecting mechanism of mould ejects this product 10, and this thimble 30 ejects this runner 11 simultaneously; This liftout plate 003 resets then, the mould matched moulds, and the piston of this cylinder 70 resets and the mating reaction through this connecting rod 60 and this fork 50 backward simultaneously, this rotary cutter 40 is turned clockwise reset, and mould gets into next molding cycle.
Embodiment 2
Please refer to Fig. 5; In the present embodiment; This fork 50 among the embodiment 1 is replaced to a gear 80; These gear 80 centers offer a hexagon through hole, the hexagon force structure 42 of the size of this hexagon through hole and this rotary cutter 40 big or small suitable, and these gear 80 nationalitys are sheathed on this rotary cutter 40 by this hexagon through hole; This connecting rod 60 among the embodiment 1 is replaced to a tooth bar 90, and an end of this tooth bar 90 is riveted on the piston of this cylinder 70, and tooth and this gear 80 on its other end side are meshing with each other.
The course of work: when plastic cement sand off and pressurize cooling; The piston forward of this cylinder 70 is released, and promotes this tooth bar 90 and travels forward, because the engagement of this tooth bar 90 and this gear 80; This gear 80 is rotated counterclockwise; Thereby making this rotary cutter 40 is that rotating shaft is rotated counterclockwise with this thimble 30, and the spill edge of a knife 42 of its upper end makes this runner 11 separate fully with this plastic cement products 10 the complete cut-out of cast gate; After cooling forming finishes, this mould die sinking, this liftout plate 003 moves upward, and the ejecting mechanism of mould ejects this product 10, and this thimble 30 ejects this runner 11 simultaneously; This liftout plate resets then, the mould matched moulds, and the piston of this cylinder 70 resets and the mating reaction through this connecting rod 60 and this fork 50 backward simultaneously, this rotary cutter 40 is turned clockwise reset, and mould gets into next molding cycle.
Compared to prior art, mould ingate of the present invention excises mechanism automatically, just can be at the mould inside automatic break gate at the product cooling stage; Make it to separate fully with product; Save cast gate and after die sinking, carried out treatment procedures, shortened the production cycle of product, reduced production cost.

Claims (4)

1. a mould ingate excises mechanism automatically, is applied in the mould, and this mould comprises a caster, a male model plate and a liftout plate, it is characterized in that, this mould ingate excises mechanism automatically and comprises:
Certain hyte part; It comprises a location board and a thimble, and this location board is fixedly arranged in this male model plate, and is provided with a manhole in the mould open/close direction; This thimble can be arranged at the below of this mould gate up and downly; Its lower end is fixedly arranged on this liftout plate, and its main body runs through this male model plate, this location board and this male model benevolence, and can be up and down in the manhole of this board;
One executive component; This executive component is a rotary cutter; But its main body be columnar structured and left rotation and right rotation be sheathed on this thimble, its upper end glue-feeder when being provided with a spill edge of a knife as formed product, but its left rotation and right rotation ground, lower end inserts the manhole of this board and the gap of this thimble; Also be provided with a polygon force structure on this executive component main body, but this force structure left rotation and right rotation be snapped on this location board;
One driving element, the outside that it is fixedly arranged on this male model plate is used to this executive component driving force is provided;
One transmission component; It comprises one first actuated element and one second actuated element; One end of this first actuated element is connected on this driving element; Its other end and this second actuated element is hinged or engagement, this second actuated element engage sleeves is located on the polygon force structure of this executive component, and the driving force of this driving element converts the torsion that makes the rotation of this executive component into through this transmission component.
2. mould ingate according to claim 1 excises mechanism automatically; It is characterized in that; This driving element is a cylinder, and the piston rod of this cylinder provides the driving force of front-rear reciprocation movement, and this driving force converts the torsion that makes this executive component left rotation and right rotation into through this transmission component.
3. mould ingate according to claim 1 and 2 excises mechanism automatically; It is characterized in that this first actuated element is a connecting rod, this second actuated element is a fork; One end engage sleeves of this fork is located on the polygon force structure of this executive component; Its other end is provided with a guide runner, and an end of this connecting rod is fixed on the piston of this cylinder, and its other end is articulated on the guide runner of this fork movably.
4. mould ingate according to claim 1 and 2 excises mechanism automatically; It is characterized in that; This first actuated element is a gear, and this second actuated element is a tooth bar, and this gear matched is sheathed on the polygon force structure of this executive component; This tooth bar one end is fixed on the piston of this cylinder, and this gear of the tooth of its side engagement carries out power transmission.
CN201110069754.9A 2011-03-23 2011-03-23 Mould ingate excises mechanism automatically Expired - Fee Related CN102689420B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN102689420B CN102689420B (en) 2016-07-06

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568204A (en) * 2012-07-26 2014-02-12 特新光电科技股份有限公司 Lever type mold ejection mechanism of ejection molding machine
CN103692623A (en) * 2013-12-19 2014-04-02 重庆前卫宏华科技有限责任公司 Full-automatic rotary water gap cutting machine
CN103801742A (en) * 2014-03-18 2014-05-21 苏州工业职业技术学院 Automatic gate milling machine
CN104162961A (en) * 2014-07-03 2014-11-26 联塑市政管道(河北)有限公司 A rotary type automatic degating device
CN105904680A (en) * 2016-06-07 2016-08-31 广东联塑科技实业有限公司 Die for automatically cutting drainage opening
CN107030255A (en) * 2017-06-12 2017-08-11 浙江坤博机械制造有限公司 Wax apparatus mould is pressed in a kind of hot investment casting
CN107932846A (en) * 2017-12-26 2018-04-20 张家港中天精密模塑有限公司 A kind of injection molding impeller removes gate mechanism
CN114030143A (en) * 2021-11-17 2022-02-11 徐州云泰精密技术有限公司 Collecting ring water gap punching device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824358A (en) * 1987-07-17 1989-04-25 Shinkoh Sellbic Co., Ltd. Resin molding die
JPH01310926A (en) * 1988-06-09 1989-12-15 Shinko Serubitsuku:Kk Mold for molding resin
JPH0338316A (en) * 1989-07-04 1991-02-19 Shinko Serubitsuku:Kk Resin injection molding die
CN201271991Y (en) * 2008-10-06 2009-07-15 中国华录·松下电子信息有限公司 Gate automatic cutting side gate mould apparatus
CN201544422U (en) * 2010-03-11 2010-08-11 镒生电线塑料(昆山)有限公司 Injection molding stub bar disconnecting device
CN202071302U (en) * 2011-03-23 2011-12-14 汉达精密电子(昆山)有限公司 Automatic cutoff mechanism for gate in mould

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824358A (en) * 1987-07-17 1989-04-25 Shinkoh Sellbic Co., Ltd. Resin molding die
JPH01310926A (en) * 1988-06-09 1989-12-15 Shinko Serubitsuku:Kk Mold for molding resin
JPH0338316A (en) * 1989-07-04 1991-02-19 Shinko Serubitsuku:Kk Resin injection molding die
CN201271991Y (en) * 2008-10-06 2009-07-15 中国华录·松下电子信息有限公司 Gate automatic cutting side gate mould apparatus
CN201544422U (en) * 2010-03-11 2010-08-11 镒生电线塑料(昆山)有限公司 Injection molding stub bar disconnecting device
CN202071302U (en) * 2011-03-23 2011-12-14 汉达精密电子(昆山)有限公司 Automatic cutoff mechanism for gate in mould

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568204A (en) * 2012-07-26 2014-02-12 特新光电科技股份有限公司 Lever type mold ejection mechanism of ejection molding machine
CN103692623A (en) * 2013-12-19 2014-04-02 重庆前卫宏华科技有限责任公司 Full-automatic rotary water gap cutting machine
CN103801742A (en) * 2014-03-18 2014-05-21 苏州工业职业技术学院 Automatic gate milling machine
CN104162961A (en) * 2014-07-03 2014-11-26 联塑市政管道(河北)有限公司 A rotary type automatic degating device
CN105904680A (en) * 2016-06-07 2016-08-31 广东联塑科技实业有限公司 Die for automatically cutting drainage opening
CN107030255A (en) * 2017-06-12 2017-08-11 浙江坤博机械制造有限公司 Wax apparatus mould is pressed in a kind of hot investment casting
CN107932846A (en) * 2017-12-26 2018-04-20 张家港中天精密模塑有限公司 A kind of injection molding impeller removes gate mechanism
CN114030143A (en) * 2021-11-17 2022-02-11 徐州云泰精密技术有限公司 Collecting ring water gap punching device
CN114030143B (en) * 2021-11-17 2022-07-22 徐州云泰精密技术有限公司 Collecting ring water gap punching device

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