CN103660187A - Mold ejection mechanism for product and flow passage separation - Google Patents

Mold ejection mechanism for product and flow passage separation Download PDF

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Publication number
CN103660187A
CN103660187A CN201310602991.6A CN201310602991A CN103660187A CN 103660187 A CN103660187 A CN 103660187A CN 201310602991 A CN201310602991 A CN 201310602991A CN 103660187 A CN103660187 A CN 103660187A
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CN
China
Prior art keywords
runner
thimble
fixing plate
slide block
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310602991.6A
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Chinese (zh)
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CN103660187B (en
Inventor
张劲松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO TIANLONG ELECTRONICS CO Ltd
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NINGBO TIANLONG ELECTRONICS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by NINGBO TIANLONG ELECTRONICS CO Ltd filed Critical NINGBO TIANLONG ELECTRONICS CO Ltd
Priority to CN201310602991.6A priority Critical patent/CN103660187B/en
Publication of CN103660187A publication Critical patent/CN103660187A/en
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Publication of CN103660187B publication Critical patent/CN103660187B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts

Abstract

A mold ejection mechanism for product and flow passage separation comprises a fixed mold fixing plate, a movable mold fixing plate, a fixed mold insert and a movable mold insert, wherein the movable mold fixing plate moves longitudinally in a reciprocating manner to fulfill mold opening or mold closing; a feed liquid inlet, a feed liquid flow passage and an inclined guide post are arranged on the fixed mold fixing plate; the feed liquid inlet and the feed liquid flow passage are matched with the jet of an injection molding machine; the inclined guide post is matched with a slide block; the slide block is arranged on a support on the movable mold fixing plate; an ejector pin backing board and an ejector pin fixing plate, which move longitudinally, are arranged on the movable mold fixing plate; the ejector pin backing board is connected onto the ejector pin fixing plate; an ejector pin is used for ejecting a product out of the slide block; a flow passage positioning column and a flow passage ejector pin are also fixed on the ejector pin fixing plate, and both penetrate the movable mold insert; the flow passage ejector pin is used for pushing the flow passage; the flow passage surrounds the flow passage positioning column in a circumferential manner, and is connected with the cavity of the product through a submarine gate.

Description

The mold ejection mechanism that product is separated with runner
Technical field
The present invention relates to the production mould of plastic product.
Background technology
Existing mold runner 12` and product 7` are all in slide block 5` moulding, and as shown in Fig. 1 a, Fig. 1 b, Fig. 2 a, Fig. 2 b, Fig. 3 a, Fig. 3 b, the implication of number in the figure is as follows: thimble backing plate 1`, thimble fixed head 2`, dynamic model die 3`, thimble 4`, slide block 5`, Angle Pin 6`, product 7`, cover half die 8`, slider locking piece 9`, slide block pressing plate 10`, runner thimble 11`, runner 12`, sprue bush 13`
Owing to being side gate, when ejecting, runner 12` and product 7` link together, can not be automatically separated, need secondary operations.
State when Fig. 2 a, Fig. 2 b have shown existing mold matched moulds, state when Fig. 3 a, Fig. 3 b have shown existing mold die sinking.
Die sinking process is as follows: during mould die sinking, dynamic model die 3` and cover half die 8` separate, slide block 5` is under the driving of Angle Pin 6` simultaneously, slide block 5` along continuous straight runs, in the groove limiting at slide block pressing plate 10`, move, when Angle Pin 6` departs from slide block 5`, slide block 5` also carries out separated with product 7`, after mould die sinking has been moved, under the effect of injection machine push rod, thimble backing plate 1` and thimble fixed head 2`, start up motion, drive the thimble 4` that is fixed on thimble backing plate 1` and thimble fixed head 2` up to move simultaneously, product 7` is ejected in mould, after product 7` ejects, with deadweight, fall, at this moment matched moulds again, complete injection moulding process one time.
Current this structure, product 7` and runner 12` link together.Need follow-up operation just can separate product and runner.
Summary of the invention
The present invention will overcome the above-mentioned shortcoming of prior art, provide a kind of be applicable in slide block molding runners, can in product ejection process, realize the product mold ejection mechanism separated with runner.
The mold ejection mechanism that product of the present invention is separated with runner, comprise cover half fixed head, dynamic mould fixing plate, cover half die 8, dynamic model die 3, described dynamic mould fixing plate longitudinally moves back and forth, complete die sinking or matched moulds, the Angle Pin 6 that be provided with the feed liquid entrance that coordinates with the spout of injection machine and material liquid flowing channel on described cover half fixed head, coordinates with slide block; Support on described dynamic mould fixing plate is provided with slide block 5, described slide block 5 comprises two slip slit bamboo or chopped woods that can be involutory, on the involutory surface of described slip slit bamboo or chopped wood, have the die cavity of product and runner, described slip slit bamboo or chopped wood is provided with the guide groove coordinating with described Angle Pin 6, in the groove that described slip slit bamboo or chopped wood along continuous straight runs limits at slide block pressing plate 10, moves; Described dynamic mould fixing plate is provided with thimble backing plate 1 and the thimble fixed head 2 of lengthwise movement, and thimble backing plate 1 is connected on thimble fixed head 2; Described thimble 4 is by product ejection slider 5, and ejecting direction is that longitudinally automatic mold fixed head points to cover half fixed head;
It is characterized in that: on described thimble fixed head 2, be also fixed with runner locating dowel 11 and runner thimble 14, described runner locating dowel 11 and runner thimble 14 be all through described dynamic model die 8 runner 12 described in described runner thimble 14 pushing tows; Runner 12 is circle-shaped and is enclosed in described runner locating dowel 11 around, and runner 12 connects the die cavity of product 7 by tunnel gate.
Further, described runner thimble 14 is arranged on runner locating dowel 11 sides.
Die sinking process is as follows: during mould die sinking, dynamic model die 3 separates with cover half die 8, and slide block 5 is under the driving of Angle Pin 6 simultaneously, and slide block 5 along continuous straight runs, move in the groove limiting at slide block pressing plate 10.
Runner 12 is at E place, because being garden week shape, the runner at this place is enclosed in runner locating dowel 11 around, when slide block 5 moves along die sinking direction C, runner 12 can not move along with the motion of slide block 5, runner 12 can only be fixed in runner locating dowel 11, but the tunnel gate at D place, along with slide block 5 moves along die sinking direction C, to realize automatic shearing separated with product 7.As shown in following Fig. 7.Along with the continuation of mould die sinking action, slide block 5 continues to move along die sinking direction C, until Angle Pin 6 is separated from slide block 5.
After die sinking has been moved.Under the effect of injection machine push rod, thimble backing plate 1 and thimble fixed head 2, start up motion, drive the thimble 4 that is fixed on thimble backing plate 1 and thimble fixed head 2 up to move simultaneously, product 7 is ejected in mould, after product 7 ejects, with deadweight, fall, meanwhile, be fixed on thimble backing plate 1 and thimble fixed head 2 runner thimble 14 also along with up motion, the runner 12 being fixed on runner fixed leg 11 is ejected.Product 7 now has been separated with runner 12, after runner 12 ejects, also with deadweight, falls, and has so just realized product and the full-automatic separated of runner and full-automatic ejection process.Then mould matched moulds.Carry out injection moulding process next time.
After mould die sinking, slide block 5 slide into die sinking apart from time state, now, runner 12 is fixed in runner locating dowel 11, meanwhile, and due to the location fixation of 11 pairs of runners 12 of runner locating dowel, at tunnel gate and product 7, carry out when separated, runner 12 can be with the motion campaign of slide block 5.The effect place of runner locating dowel 11 that Here it is.
By this novel runner locating dowel fixed structure, well solved the runner orientation problem of slide block tunnel gate, the problem of having avoided runner to move with slide block movement has realized the automatically separated of product and runner simultaneously.Having realized the pattern that full-automatic injection moulding is produced, is a kind of mould structure being worthy to be popularized.
Advantage of the present invention is: in product ejection process, automatically realize the separated of product and runner, without artificial secondary operations, directly reduced production cost, promoted efficiency.
Accompanying drawing explanation
Fig. 1 a is the structural representation of existing mold, and in figure, A is slide block parting line, and B is slide block die sinking direction
Fig. 1 b is that the A-A of Fig. 1 a is to cutaway view
Fig. 2 a is the structural representation of the matched moulds state of existing mold
Fig. 2 b is that the A-A of Fig. 2 a is to cutaway view
Fig. 3 a is the structural representation of the die opening state of existing mold
Fig. 3 b is that the A-A of Fig. 3 a is to cutaway view
Fig. 4 a is the structural representation of matched moulds state of the present invention
Fig. 4 b is that the A-A of Fig. 4 a is to cutaway view
Fig. 5 is the partial view of the section B-B in Fig. 4 b, and wherein B is slide block die joint position, and C is slide block die sinking direction, D is the position of runner tunnel gate, and the runner at E place is garden week shape and is enclosed in runner locating dowel 11 around, 7 is product, the 12nd, and runner, 5 is slide block.
Fig. 6 a is the structural representation of die opening state of the present invention
Fig. 6 b is that the A-A of Fig. 5 a is to cutaway view
Fig. 7 is the state of runner of the present invention 12 while automatically separating with product 7.
Fig. 8 be the present invention at runner thimble 14 in ejection process, schematic diagram when runner thimble 14 has just started to eject runner 12 from runner fixed leg 11
Fig. 9 is the runner locating dowel 11 of dynamic model side of the present invention and the structural representation of the 3D of runner thimble 14, and 3 is dynamic model die
After Figure 10 is mould die sinking, slide block 5 slide into die sinking apart from time structural representation
The specific embodiment
With reference to accompanying drawing 4a-Figure 10: the implication of number in the figure is as follows: thimble backing plate 1, thimble fixed head 2, dynamic model die 3, thimble 4, slide block 5, Angle Pin 6, product 7, cover half die 8, slider locking piece 9, slide block pressing plate 10, runner fixed leg 11, runner 12, sprue bush 13, runner thimble 14
The mold ejection mechanism that product of the present invention is separated with runner, comprise cover half fixed head, dynamic mould fixing plate, cover half die 8, dynamic model die 3, described dynamic mould fixing plate longitudinally moves back and forth, complete die sinking or matched moulds, the Angle Pin 6 that be provided with the feed liquid entrance that coordinates with the spout of injection machine and material liquid flowing channel on described cover half fixed head, coordinates with slide block; Support on described dynamic mould fixing plate is provided with slide block 5, described slide block 5 comprises two slip slit bamboo or chopped woods that can be involutory, on the involutory surface of described slip slit bamboo or chopped wood, have the die cavity of product and runner, described slip slit bamboo or chopped wood is provided with the guide groove coordinating with described Angle Pin 6, in the groove that described slip slit bamboo or chopped wood along continuous straight runs limits at slide block pressing plate 10, moves; Described dynamic mould fixing plate is provided with thimble backing plate 1 and the thimble fixed head 2 of lengthwise movement, and thimble backing plate 1 is connected on thimble fixed head 2; Described thimble 4 is by product ejection slider 5, and ejecting direction is that longitudinally automatic mold fixed head points to cover half fixed head;
On described thimble fixed head 2, be also fixed with runner locating dowel 11 and runner thimble 14, described runner locating dowel 11 and runner thimble 14 be all through described dynamic model die 8, the runner 12 described in described runner thimble 14 pushing tows; Runner 12 is circle-shaped and is enclosed in described runner locating dowel 11 around, and runner 12 connects the die cavity of product 7 by tunnel gate.
Described runner thimble 14 is arranged on runner locating dowel 11 sides.
As shown in Figure 6, die sinking process is as follows: during mould die sinking, dynamic model die 3 separates with cover half die 8, slide block 5 is under the driving of Angle Pin 6 simultaneously, slide block 5 along continuous straight runs, in the groove limiting at slide block pressing plate 10, move, as shown in Figure 5, runner 12 is at E place, because being garden week shape, the runner at this place is enclosed in runner locating dowel 11 around, when slide block 5 moves along die sinking direction C, runner 12 can not move along with the motion of slide block 5, runner 12 can only be fixed in runner locating dowel 11, but the tunnel gate at D place, along with slide block 5 moves along die sinking direction C, to realize automatic shearing separated with product 7.As shown in following Fig. 7.Along with the continuation of mould die sinking action, slide block 5 continues to move along die sinking direction C, until Angle Pin 6 is separated from slide block 5.
After die sinking has been moved.Under the effect of injection machine push rod, thimble backing plate 1 and thimble fixed head 2, start up motion, drive the thimble 4 that is fixed on thimble backing plate 1 and thimble fixed head 2 up to move simultaneously, product 7 is ejected in mould, after product 7 ejects, with deadweight, fall, meanwhile, be fixed on thimble backing plate 1 and thimble fixed head 2 runner thimble 14 also along with up motion, the runner 12 being fixed on runner fixed leg 11 is ejected.Product 7 now has been separated with runner 12, after runner 12 ejects, also with deadweight, falls, and has so just realized product and the full-automatic separated of runner and full-automatic ejection process.Then mould matched moulds.Carry out injection moulding process next time.
After Figure 10 is mould die sinking, slide block 5 slide into die sinking apart from time state, now, runner 12 is fixed in runner locating dowel 11, simultaneously, due to the location fixation of 11 pairs of runners 12 of runner locating dowel, at tunnel gate and product 7, carry out when separated, runner 12 can be with the motion campaign of slide block 5.The effect place of runner locating dowel 11 that Here it is.
By this novel runner locating dowel fixed structure, well solved the runner orientation problem of slide block tunnel gate, the problem of having avoided runner to move with slide block movement has realized the automatically separated of product and runner simultaneously.Having realized the pattern that full-automatic injection moulding is produced, is a kind of mould structure being worthy to be popularized.
Content described in this description embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also and in those skilled in the art, according to the present invention, conceive the equivalent technologies means that can expect.

Claims (2)

1. the product mold ejection mechanism separated with runner, comprise cover half fixed head, dynamic mould fixing plate, cover half die (8), dynamic model die (3), described dynamic mould fixing plate longitudinally moves back and forth, complete die sinking or matched moulds, the Angle Pin (6) that be provided with the feed liquid entrance that coordinates with the spout of injection machine and material liquid flowing channel on described cover half fixed head, coordinates with slide block; Support on described dynamic mould fixing plate is provided with slide block (5), described slide block (5) comprises two slip slit bamboo or chopped woods that can be involutory, on the involutory surface of described slip slit bamboo or chopped wood, have the die cavity of product and runner, described slip slit bamboo or chopped wood is provided with the guide groove coordinating with described Angle Pin (6), motion in the groove that described slip slit bamboo or chopped wood along continuous straight runs limits at slide block pressing plate (10); Described dynamic mould fixing plate is provided with thimble backing plate (1) and the thimble fixed head (2) of lengthwise movement, and thimble backing plate (1) is connected on thimble fixed head (2); Described thimble (4) is by product ejection slider (5), and ejecting direction is that longitudinally automatic mold fixed head points to cover half fixed head;
It is characterized in that: on described thimble fixed head (2), be also fixed with runner locating dowel (11) and runner thimble (14), described runner locating dowel (11) and runner thimble (14) be all through described dynamic model die (8), the runner (12) described in described runner thimble (14) pushing tow; Runner (12) is circle-shaped and is enclosed in described runner locating dowel (11) around, and runner (12) connects the die cavity of product (7) by tunnel gate.
2. mold ejection mechanism as claimed in claim 1, is characterized in that: described runner thimble (14) is arranged on runner locating dowel (11) side.
CN201310602991.6A 2013-11-22 2013-11-22 The mold ejection mechanism that product is separated with runner Active CN103660187B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007050553A (en) * 2005-08-15 2007-03-01 Citizen Electronics Co Ltd Gate system in injection mold
CN201158123Y (en) * 2007-12-03 2008-12-03 比亚迪股份有限公司 Injection mold
CN102133789A (en) * 2011-02-25 2011-07-27 慈溪天龙电子有限公司 Double-mould-opening and double-core-pulling mechanism
CN103144259A (en) * 2013-03-01 2013-06-12 宁波天龙电子股份有限公司 Mould ejecting mechanism capable of sequentially ejecting product and flow channel
CN203210633U (en) * 2013-04-27 2013-09-25 嘉善富亿德塑胶有限公司 Intramode automatic shearing device of side gate
CN203888146U (en) * 2013-11-22 2014-10-22 宁波天龙电子股份有限公司 Mould ejection mechanism for separating product from runner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007050553A (en) * 2005-08-15 2007-03-01 Citizen Electronics Co Ltd Gate system in injection mold
CN201158123Y (en) * 2007-12-03 2008-12-03 比亚迪股份有限公司 Injection mold
CN102133789A (en) * 2011-02-25 2011-07-27 慈溪天龙电子有限公司 Double-mould-opening and double-core-pulling mechanism
CN103144259A (en) * 2013-03-01 2013-06-12 宁波天龙电子股份有限公司 Mould ejecting mechanism capable of sequentially ejecting product and flow channel
CN203210633U (en) * 2013-04-27 2013-09-25 嘉善富亿德塑胶有限公司 Intramode automatic shearing device of side gate
CN203888146U (en) * 2013-11-22 2014-10-22 宁波天龙电子股份有限公司 Mould ejection mechanism for separating product from runner

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