CN203994525U - The core-pulling mechanism of injection forming mold - Google Patents

The core-pulling mechanism of injection forming mold Download PDF

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Publication number
CN203994525U
CN203994525U CN201420322966.2U CN201420322966U CN203994525U CN 203994525 U CN203994525 U CN 203994525U CN 201420322966 U CN201420322966 U CN 201420322966U CN 203994525 U CN203994525 U CN 203994525U
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CN
China
Prior art keywords
core
plate
die cavity
cover
pulling
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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.)
Expired - Fee Related
Application number
CN201420322966.2U
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Chinese (zh)
Inventor
谢长江
黄鹤鸣
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.)
Wuxi Xinrun Automotive Safety System Co Ltd
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Wuxi Xinrun Automotive Safety System 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.)
Filing date
Publication date
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Priority to CN201420322966.2U priority Critical patent/CN203994525U/en
Application granted granted Critical
Publication of CN203994525U publication Critical patent/CN203994525U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to mould molding device field, relate to a kind of core-pulling mechanism of injection forming mold, comprise cover half fixed head, described cover half fixed head upper surface is fixed with solid plate, cover half fixed head lower surface two ends are fixed with layback plate, and be provided with sprue bush at solid plate end face, be provided with the second core in solid plate bottom surface and sprue bush corresponding section, the main running channel of sprue bush extends downward the porch of the second core, the second core bottom is pressed on die cavity, on described die cavity, be connected with some the first cores, each described the first core outboard end is all connected with connecting rod, described connecting rod outer end all connects the lever arm of loosing core by the first axle, the lever arm of loosing core is rotationally connected with on fixing wallboard by the second axle, described fixing wallboard is placed in cover half fixed head lower position.Use this core-pulling mechanism when injection moulding completes die sinking, do not increase external force, realize automatic core-pulling and the demoulding smoothly, can effectively enhance productivity.

Description

The core-pulling mechanism of injection forming mold
Technical field
The utility model belongs to mould molding device field, relates to a kind of core-pulling mechanism of injection forming mold.
Background technology
Flourish along with plastics industry, plastic product has almost related to the every field of production, life.The material plastic material easy, good and cheap by moulding, stable performance of many products that people use is substituted, and still, the feature of plastic shaping determines that it has limitation.For the goods of many radial holes of semicircle class, loose core and need to adopt outer power labyrinth just can complete, and production efficiency is lower.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of core-pulling mechanism of simple in structure, ingenious, rational injection forming mold is provided, use this core-pulling mechanism when injection moulding completes die sinking, do not increase external force, realize automatic core-pulling and the demoulding smoothly, can effectively enhance productivity.
The technical scheme providing according to the utility model: a kind of core-pulling mechanism of injection forming mold, be characterised in that: comprise cover half fixed head, described cover half fixed head upper surface is fixed with solid plate, cover half fixed head lower surface two ends are fixed with layback plate, and be provided with sprue bush at solid plate end face, be provided with the second core in solid plate bottom surface and sprue bush corresponding section, the main running channel of sprue bush extends downward the porch of the second core, the second core bottom is pressed on die cavity, on described die cavity, be connected with some the first cores, each described the first core outboard end is all connected with connecting rod, described connecting rod outer end all connects the lever arm of loosing core by the first axle, the lever arm of loosing core is rotationally connected with on fixing wallboard by the second axle, described fixing wallboard is placed in cover half fixed head lower position, layback plate inner surface, is formed with multiple steps from top to bottom, and the lever arm end of loosing core is posted by corresponding step, described layback plate below is provided with dynamic model backing plate, and dynamic model backing plate is supported on moving clamping plate by mould pin, and in middle position, moving clamping plate surface, folded being provided with ejects base plate, liftout plate successively from bottom to up, is provided with push rod and push back pin at liftout plate upper surface.
As further improvement of the utility model, the radius of gyration of some steps that described layback plate inner surface arranges increases from top to bottom successively; The longitudinal section of die cavity is semicircle shape, die cavity center is semicircle hollow form, the second core bottom semicircular projection stretches in the hollow structure of die cavity, and some the first cores that are connected on die cavity all run through die cavity setting, and each the first core inner end all stretches in die cavity hollow cavity.
As further improvement of the utility model, be fixed with respectively mould pin in moving clamping plate upper surface both sides, eject base plate, liftout plate is arranged between two mould pin.
Compared with prior art, advantage is the utility model: the utility model product structure advantages of simple, can effectively overcome in the course of the work Related product in prior art and loose core and need the problem that adopts outer power labyrinth just can complete; Use the utility model product when injection moulding completes die sinking, can realize the problem that does not increase external force, realizes automatic core-pulling and the smooth demoulding, effectively enhance productivity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the loose core structural representation of arm of lever.
Fig. 4 is the top view of Fig. 3.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, comprise and eject base plate 1, liftout plate 2, mould pin 3, connecting rod 4, the first core 5, fixing wallboard 6, the first axle 7, die cavity 8, cover half fixed head 9, sprue bush 10, solid plate 11, the second core 12, layback plate 13, the second axle 14, lever loose core arm 15, push rod 16, dynamic model backing plate 17, push back pin 18, moving clamping plate 19, guide pillar 20, step 21 etc.
As Fig. 1, shown in 2, the core-pulling mechanism of a kind of injection forming mold of the utility model, comprise cover half fixed head 9, described cover half fixed head 9 upper surfaces are fixed with solid plate 11, cover half fixed head 9 lower surface two ends are fixed with layback plate 13, and be provided with sprue bush 10 at solid plate 11 end faces, be provided with the second core 12 in solid plate 11 bottom surfaces and sprue bush 10 corresponding sections, the main running channel of sprue bush 10 extends downward the porch of the second core 12, the second core 12 bottoms are pressed on die cavity 8, on described die cavity 8, be connected with some the first cores 5, each described the first core 5 outboard end are all connected with connecting rod 4, described connecting rod 4 outer ends all connect the lever arm 15 of loosing core by the first axle 7, in the time of product design and development, pay special attention to guarantee that each lever is loosed core between arm 15, can mutually not interfere, the lever arm 15 of loosing core is rotationally connected with on fixing wallboard 6 by the second axle 14, described fixing wallboard 6 is placed in cover half fixed head 9 lower position, layback plate 13 inner surfaces, is formed with multiple steps 21 from top to bottom, and lever arm 15 ends of loosing core are posted by corresponding step 21, described layback plate 13 belows are provided with dynamic model backing plate 17, dynamic model backing plate 17 is supported on moving clamping plate 19 by mould pin 3, in the surperficial middle position of moving clamping plate 19, folded being provided with ejects base plate 1, liftout plate 2 successively from bottom to up, is provided with push rod 16 and push back pin 18 at liftout plate 2 upper surfaces.
The radius of gyration of some steps 21 that described layback plate 13 inner surfaces arrange increases from top to bottom successively; The longitudinal section of die cavity 8 is semicircle shape, die cavity 8 centers are semicircle hollow form, the second core 12 bottom semicircular projections stretch in the hollow structure of die cavity 8, be connected in some the first cores 5 on die cavity 8 and all run through die cavity 8 and arrange, and each the first core 5 inner ends all stretch in die cavity 8 hollow cavities.
Be fixed with respectively mould pin 3 in moving clamping plate 19 upper surface both sides, eject base plate 1, liftout plate 2 is arranged between two mould pin 3.
As shown in Figure 2, the arrangement mode of the first core 5, can be along die cavity 8 radially make multiple layouts with length direction.
In when work, connecting rod 4, the first core 5 and lever 15 3 the assemblies composition toggles of arm of loosing core, can realize snakelike activity; Being connected in the loose core specifications and models of arm 15 of some levers on die cavity 8 by connecting rod 4 and the first core 5 increases successively for length from top to bottom.
As shown in Figure 3,4, the loose core structural representation of arm 15 of lever, as can be seen from the figure link offers two through holes, is wherein positioned at the less through hole in end for connecting connecting rod 4, and a larger through hole rotates and is arranged at fixing wallboard 6 for arm 15 that lever is loosed core.
The course of work of the present utility model is as follows: after matched moulds and injection moulding complete, carry out die sinking operation, the about 5mm of the second core 12 moves up, until the second core 12 is thrown off, by the effect of layback plate 13, the lever arm 15 of loosing core is rotated, and drive the first core 5 moving linearlies to complete the operation of loosing core by the lever arm 15 of loosing core through connecting rod 4, continuing die sinking puts in place, now injection machine push rod 16 ejects base plate 1 liftout plate 2 and push rod 16, push back pin 18 advances, and then eject shaped article, then pickup successively, matched moulds, push back pin 18 is encountered cover half fixed head 9, drive ejects base plate 1, liftout plate 2, push rod 16 is return, the lever arm 15 of loosing core is encountered layback plate 13, now the lever arm 15 of loosing core counter-rotates, drive the first core 5 moving linearlies to complete lock pin operation through connecting rod 4, continue matched moulds, until the second core 12 puts in place, matched moulds completes.

Claims (3)

1. the core-pulling mechanism of an injection forming mold, it is characterized in that: comprise cover half fixed head (9), described cover half fixed head (9) upper surface is fixed with solid plate (11), cover half fixed head (9) lower surface two ends are fixed with layback plate (13), and be provided with sprue bush (10) at solid plate (11) end face, be provided with the second core (12) in solid plate (11) bottom surface and sprue bush (10) corresponding section, the main running channel of sprue bush (10) extends downward the porch of the second core (12), the second core (12) bottom is pressed on die cavity (8), on described die cavity (8), be connected with some the first cores (5), each described the first core (5) outboard end is all connected with connecting rod (4), described connecting rod (4) outer end all connects the lever arm (15) of loosing core by the first axle (7), the lever arm (15) of loosing core is rotationally connected with on fixing wallboard (6) by the second axle (14), described fixing wallboard (6) is placed in cover half fixed head (9) lower position, layback plate (13) inner surface, is formed with multiple steps (21) from top to bottom, and lever arm (15) end of loosing core is posted by corresponding step (21), described layback plate (13) below is provided with dynamic model backing plate (17), dynamic model backing plate (17) is supported on moving clamping plate (19) by mould pin (3), in the surperficial middle position of moving clamping plate (19), folded being provided with ejects base plate (1), liftout plate (2) successively from bottom to up, is provided with push rod (16) and push back pin (18) at liftout plate (2) upper surface.
2. the core-pulling mechanism of injection forming mold as claimed in claim 1, is characterized in that: the radius of gyration of some steps (21) that described layback plate (13) inner surface arranges increases from top to bottom successively; The longitudinal section of die cavity (8) is semicircle shape, die cavity (8) center is semicircle hollow form, the second core (12) bottom semicircular projection stretches in the hollow structure of die cavity (8), some the first cores (5) that are connected on die cavity (8) all run through die cavity (8) setting, and each the first core (5) inner end all stretches in die cavity (8) hollow cavity.
3. the core-pulling mechanism of injection forming mold as claimed in claim 1, is characterized in that: be fixed with respectively mould pin (3) in moving clamping plate (19) upper surface both sides, eject base plate (1), liftout plate (2) is arranged between two mould pin (3).
CN201420322966.2U 2014-06-17 2014-06-17 The core-pulling mechanism of injection forming mold Expired - Fee Related CN203994525U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420322966.2U CN203994525U (en) 2014-06-17 2014-06-17 The core-pulling mechanism of injection forming mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420322966.2U CN203994525U (en) 2014-06-17 2014-06-17 The core-pulling mechanism of injection forming mold

Publications (1)

Publication Number Publication Date
CN203994525U true CN203994525U (en) 2014-12-10

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104015313A (en) * 2014-06-17 2014-09-03 无锡忻润汽车安全系统有限公司 Core-pulling mechanism of injection molding mould
CN104924543A (en) * 2015-07-07 2015-09-23 贾玉平 Precision injection mold provided with multiple turning loose cores and based on two-time parting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104015313A (en) * 2014-06-17 2014-09-03 无锡忻润汽车安全系统有限公司 Core-pulling mechanism of injection molding mould
CN104924543A (en) * 2015-07-07 2015-09-23 贾玉平 Precision injection mold provided with multiple turning loose cores and based on two-time parting

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20160617

CF01 Termination of patent right due to non-payment of annual fee