CN104859107B - A kind of rack slant-top core-pulling stripper apparatus of injection mold - Google Patents
A kind of rack slant-top core-pulling stripper apparatus of injection mold Download PDFInfo
- Publication number
- CN104859107B CN104859107B CN201510231012.XA CN201510231012A CN104859107B CN 104859107 B CN104859107 B CN 104859107B CN 201510231012 A CN201510231012 A CN 201510231012A CN 104859107 B CN104859107 B CN 104859107B
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- Prior art keywords
- oblique
- rack
- straight
- pin bushing
- guide pin
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- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000000875 corresponding Effects 0.000 claims description 8
- 238000004904 shortening Methods 0.000 abstract description 2
- 101700022029 GBLP Proteins 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000789 fastener Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised Effects 0.000 description 2
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 210000002435 Tendons Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C2045/4042—Ejector constructions; Ejector operating mechanisms driven by rack and pinion means
Abstract
The invention discloses a kind of rack slant-top core-pulling stripper apparatus of injection mold, including straight top spur rack (1), oblique top helical rack (2), guide pin bushing (3), extension bar (4), oblique Loose core block (5).The present invention is fixedly connected on above oblique top helical rack using oblique Loose core block, straight top spur rack and oblique top helical rack, which intersect, is engaged through guide pin bushing, oblique Loose core block is slidably disposed in the resettlement groove of core, and guide pin bushing is fixedly connected with core, and the bottom of straight top spur rack is fixedly connected through extension bar with top plate；During work, top plate is moved upwards through the straight top spur rack of extension bar driving, acted on by being engaged with straight top spur rack, oblique top helical rack drives oblique Loose core block oblique movement to the left from bottom to top, the oblique Loose core block technical scheme that laterally core pulling spins off from the structure of deep back-off on the inside of product to the left while upward pushing tow product departs from core, the characteristics of oblique top angle is big is adapted to using rack oblique top, make the injection mold provided with the deep back-off structure in inner side, reach the purpose for shortening ejection stroke, reducing mould body, reduction Making mold and operating cost.
Description
Technical field
The present invention relates to the core-pulling demolding device of injection mold, specifically refer to be embedded on the inside of product deeply for injection mold
A kind of rack slant-top core-pulling stripper apparatus for injection mold that pellet in back-off structure is extracted out.
Background technology
Back-off refers in injection-molded item, flange, fastener or convex tendon that core_pulling demoulding direction is intersected with the folding direction of mould
Structure；It is referred to as outside in face of extraneous one side when injection-molded item is applied, the another side relative with the outside is referred to as inner side；Step-by-step
Put, back-off and exceptionally two kinds of side back-off and inner reverse fastener；For outside back-off, prior art uses the transverse slider of transverse movement
Carry out core_pulling demoulding；For inner reverse fastener, prior art uses the slant-top core-pulling device being made up of angle ejector rod, oblique Loose core block, leads to
Cross oblique top oblique movement and carry out core_pulling demoulding, also known as angle ejector rod core pulling；The depth or length of back-off are more than three times of product wall thickness
Be referred to as deep back-off, for the deep back-off in inner side, because the angle that angle ejector rod core pulling adapts to oblique top is small, oblique top angle is less than or equal to
12 °, therefore ejection stroke is long so that mould body is big, and mould needs to use the injection machine of big specification when running, cause mould
The integrated cost of manufacture and operation occupies high；Therefore, prior art has that ejection stroke length, mould body be big, integrated cost is high
Problems and shortcomings.
The content of the invention
The problem of existing for above-mentioned prior art and deficiency, the present invention is using by directly pushing up spur rack, oblique top helical rack, leading
The device that set, extension bar, oblique Loose core block are constituted, straight top spur rack is the above rack provided with horizontal trapezoid teeth；Oblique top helical teeth
Bar is the rack provided with oblique trapezoidal teeth below；Guide pin bushing is provided with straight guide hole and oblique guide hole；Oblique Loose core block is fixedly connected on oblique top
Above helical rack, straight top spur rack is fixedly connected on above extension bar；Straight top spur rack and oblique top helical rack are each passed through
The straight guide hole and oblique guide hole of guide pin bushing and intersection engagement；With being contacted above guide pin bushing below oblique Loose core block；Using when, oblique Loose core block
In the resettlement groove for being slidably disposed in core setting, guide pin bushing is fixedly connected with core, and the bottom of oblique top helical rack is located at what core was set
In avoiding hollow groove, the bottom of straight top spur rack passes through core and dynamic model support plate, the lower end and top of extension bar with extension bar slide downward
Plate is fixedly connected；During work, top plate drives straight push rod, extension bar and straight top spur rack to move upwards, is nibbled by with straight top spur rack
The effect of conjunction, oblique top helical rack drives oblique Loose core block oblique movement to the left from bottom to top, and oblique Loose core block is synchronously upward with straight push rod
While pushing tow product departs from core, the transverse shifting skill that core pulling spins off from the structure of the deep back-off in the inner side of product to the left
There is provided a kind of rack slant-top core-pulling stripper apparatus of injection mold for art scheme, it is intended to which it is big to adapt to oblique top angle using rack oblique top
The characteristics of, make the injection mold provided with the deep back-off structure in inner side, reach shortening ejection stroke, reduce mould body, reduction mould
Manufacture and the purpose of operating cost.
The object of the present invention is achieved like this：A kind of rack slant-top core-pulling stripper apparatus of injection mold, including straight top
Spur rack, oblique top helical rack, guide pin bushing, extension bar, oblique Loose core block, wherein：Described straight top spur rack be cross section semicircular in shape,
Above it is provided with the shaft-like steel components of strip of horizontal trapezoid straight-tooth denture；
Described oblique top helical rack is cross section semicircular in shape, below provided with backsight in acclivitous oblique from left to right
The shaft-like steel components of strip of trapezoidal helical teeth denture；
Described guide pin bushing is that the preceding left part above the steel components of rectangular block shape, guide pin bushing is provided with what is be tilted to the right from top to bottom
The rear right part that through hole is referred to as above oblique guide hole, guide pin bushing is referred to as straight guide hole provided with through hole from top to bottom；The oblique guide hole is with directly leading
Hole is mutually cut in the internal chiasma of guide pin bushing, and the shape of cross section of the oblique guide hole and straight guide hole is straight with oblique top helical rack and straight top respectively
The shape of cross section correspondence of rack；
Described extension bar is the shaft-like steel components of cylinder；
Described oblique Loose core block is provided with corresponding with the inner shape of product above block steel components, oblique Loose core block
Type face, the right side of oblique Loose core block is provided with type face corresponding with the deep back-off in the inner side of product；
Oblique Loose core block is fixedly connected on above oblique top helical rack, and straight top spur rack is fixedly connected on above extension bar；
Straight top spur rack and oblique top helical rack are each passed through the straight guide hole and oblique guide hole of guide pin bushing and in guide pin bushing internal chiasma engagement；Tiltedly
With being contacted above guide pin bushing below Loose core block；
Using when, oblique Loose core block be slidably disposed in core setting resettlement groove in, guide pin bushing is fixedly connected with core, oblique top helical teeth
The bottom of bar is located in the avoiding hollow groove that core is set, and the bottom of straight top spur rack passes through core and dynamic model with extension bar slide downward
Support plate, the lower end of extension bar is fixedly connected with top plate.
Said structure statement direction face be divided into up, down, left, right, front, rear side, wherein, before be in face of present apparatus main view
The face of figure, behind be and the above relative face.
Operation principle and beneficial effect
During work, top plate drives straight push rod, extension bar and straight top spur rack to move upwards, and oblique top helical rack is by straight with straight top
The engagement of rack, oblique top helical rack drives oblique Loose core block oblique movement to the left from bottom to top, and oblique Loose core block is same with straight push rod
While walking upward pushing tow product disengaging core, transverse shifting core pulling from the structure of the deep back-off in the inner side of product to the left departs from
Out.
The present apparatus is simple in construction, reliable operation, and oblique top angle can reach 20 °, and the angle for adapting to oblique top is big, can significantly contract
Short ejection stroke, makes the injection mold provided with the deep back-off structure in inner side, reduces mould body, reduces Making mold and mould
The cost of operation；In addition, present apparatus highly versatile, it is easy to form standard normalized universal component, the meaning with pervasive popularization
Justice.
Above-mentioned, the present invention is using by directly pushing up the dress that spur rack, oblique top helical rack, guide pin bushing, extension bar, oblique Loose core block are constituted
Put, straight top spur rack is the above rack provided with horizontal trapezoid teeth；Oblique top helical rack is below provided with oblique trapezoidal teeth
Rack；Guide pin bushing is provided with straight guide hole and oblique guide hole；Oblique Loose core block is fixedly connected on above oblique top helical rack, and straight top spur rack is fixed
It is connected to above extension bar；Straight top spur rack and oblique top helical rack are each passed through the straight guide hole and oblique guide hole of guide pin bushing and intersected and nibble
Close；With being contacted above guide pin bushing below oblique Loose core block；Using when, oblique Loose core block be slidably disposed in core setting resettlement groove in,
Guide pin bushing is fixedly connected with core, and the bottom of oblique top helical rack is located in the avoiding hollow groove that core is set, the bottom of straight top spur rack with
Extension bar slide downward passes through core and dynamic model support plate, and the lower end of extension bar is fixedly connected with top plate；During work, top plate driving is straight
Push rod, extension bar and straight top spur rack are moved upwards, are acted on by being engaged with straight top spur rack, oblique top helical rack drives oblique core pulling
Block oblique movement to the left from bottom to top, oblique Loose core block with straight push rod it is synchronous pushing tow product departs from core upwards while, it is horizontal to the left
The technical scheme that core pulling spins off into the structure of the deep back-off in the mobile inner side from product, overcomes prior art and there is ejection
Stroke length, the problem of mould body is big, integrated cost is high with it is not enough, a kind of rack slant-top core-pulling of the injection mold provided takes off
Die device, the characteristics of oblique top angle is big is adapted to using rack oblique top, is made the injection mold provided with the deep back-off structure in inner side, is reached
Shorten ejection stroke, reduce the purpose of mould body, reduction Making mold and operating cost.
Brief description of the drawings
Fig. 1 is a kind of main structure diagram of the rack slant-top core-pulling stripper apparatus of injection mold of the present invention；
Fig. 2 is a kind of backsight knot of the oblique top helical rack 2 of the rack slant-top core-pulling stripper apparatus of injection mold of the present invention
Structure schematic diagram；
Fig. 3 is a kind of plan structure signal of the guide pin bushing 3 of the rack slant-top core-pulling stripper apparatus of injection mold of the present invention
Figure；
Fig. 4 is a kind of exploded isometric schematic diagram of the rack slant-top core-pulling stripper apparatus of injection mold of the present invention；
Fig. 5 is a kind of rack slant-top core-pulling stripper apparatus of injection mold of the present invention with applying mould annexation
Schematic diagram；
Fig. 6 is a kind of rack slant-top core-pulling stripper apparatus of injection mold of the present invention, is operated in slant-top core-pulling tense
Principle schematic.
Embodiment in below in conjunction with the accompanying drawings is described in further detail to the present invention, but should not be construed as to the present invention's
Any limitation.
In figure：Straight top spur rack 1, straight-tooth 11, oblique top helical rack 2, helical teeth 21, guide pin bushing 3, straight guide hole 31, oblique guide hole 32 plus
Stock 4, oblique Loose core block 5, core 01, dynamic model support plate 02, top plate 03, straight push rod 04, bottom plate 05, product 06, the deep back-off in inner side
061。
Embodiment
Refering to Fig. 1~Fig. 6, a kind of rack slant-top core-pulling stripper apparatus of injection mold of the invention, including straight top straight-tooth
Bar 1, oblique top helical rack 2, guide pin bushing 3, extension bar 4, oblique Loose core block 5, wherein：Described straight top spur rack 1 is that cross section is in semicircle
Shape, the shaft-like steel components of strip for being above provided with the denture of horizontal trapezoid straight-tooth 11；
Described oblique top helical rack 2 is cross section semicircular in shape, below provided with backsight in acclivitous oblique from left to right
To the shaft-like steel components of strip of the trapezoidal denture of helical teeth 21；
Described guide pin bushing 3 is the steel components of rectangular block shape, and the preceding left part above guide pin bushing 3 provided with being tilted to the right from top to bottom
Through hole be referred to as rear right part above oblique guide hole 32, guide pin bushing 3 and be referred to as straight guide hole 31 provided with through hole from top to bottom；The oblique guide hole
32 internal chiasma with straight guide hole 31 in guide pin bushing 3 is mutually cut, the shape of cross section of the oblique guide hole 32 and straight guide hole 31 respectively with tiltedly
The shape of cross section that helical rack 2 is pushed up with straight top spur rack 1 is corresponding；
Described extension bar 4 is the shaft-like steel components of cylinder；
Described oblique Loose core block 5 is provided with the inner shape with product 06 above block steel components, oblique Loose core block 5
Corresponding type face, the right side of oblique Loose core block 5 is provided with type face corresponding with the deep back-off 061 in the inner side of product 06；
Oblique Loose core block 5 is fixedly connected on above oblique top helical rack 2, and straight top spur rack 1 is fixedly connected on the upper of extension bar 4
Face；Straight top spur rack 1 and oblique top helical rack 2 are each passed through the straight guide hole 31 and oblique guide hole 32 of guide pin bushing 3 and inside guide pin bushing 3
Intersect engagement；With being contacted above guide pin bushing 3 below oblique Loose core block 5；
Using when, oblique Loose core block 5 be slidably disposed in core 01 setting resettlement groove in, guide pin bushing 3 is fixedly connected with core 01,
The bottom of oblique top helical rack 2 is located in the avoiding hollow groove that core 01 is set, the bottom of straight top spur rack 1 and the slide downward of extension bar 4
Through core 01 and dynamic model support plate 02, the lower end of extension bar 4 is fixedly connected with top plate 03.
Said structure statement direction face be divided into up, down, left, right, front, rear side, wherein, before be in face of present apparatus main view
The face of figure, behind be and the above relative face.
Operation principle and beneficial effect
During work, top plate 03 drives straight push rod 04, extension bar 4 and straight top spur rack 1 to move upwards, oblique top helical rack 2 by
With the engagement of straight top spur rack 1, oblique top helical rack 2 drives oblique Loose core block 5 oblique movement, oblique Loose core block to the left from bottom to top
While 5 disengaging core 01 of pushing tow product 06 upwards synchronous with straight push rod 04, transverse shifting falls deeply from the inner side of product 06 to the left
Core pulling spins off in the structure of button 061.
The present apparatus is simple in construction, reliable operation, and oblique top angle can reach 20 °, and the angle for adapting to oblique top is big, can significantly contract
Short ejection stroke, makes the injection mold provided with the deep structure of back-off 061 in inner side, reduce mould body, reduce Making mold and
The cost of mould operation；In addition, present apparatus highly versatile, it is easy to form standard normalized universal component, promoted with pervasive
Meaning.
Claims (1)
1. a kind of rack slant-top core-pulling stripper apparatus of injection mold, including straight top spur rack (1), oblique top helical rack (2), guide pin bushing
(3), extension bar (4), oblique Loose core block (5), it is characterised in that：Described straight top spur rack (1) is cross section semicircular in shape, above
The shaft-like steel components of strip provided with horizontal trapezoid straight-tooth (11) denture；
Described oblique top helical rack (2) is cross section semicircular in shape, below provided with backsight in acclivitous oblique from left to right
The shaft-like steel components of strip of trapezoidal helical teeth (21) denture；
Described guide pin bushing (3) is the steel components of rectangular block shape, and the preceding left part of guide pin bushing (3) above is provided with and is tilted to the right from top to bottom
Through hole be referred to as oblique guide hole (32), the rear right part of guide pin bushing (3) above is referred to as straight guide hole (31) provided with through hole from top to bottom；It is described
Oblique internal chiasma of the guide hole (32) with straight guide hole (31) in guide pin bushing (3) is mutually cut, the oblique guide hole (32) and the horizontal stroke of straight guide hole (31)
Shape of cross section of the cross sectional shape respectively with oblique top helical rack (2) and straight top spur rack (1) is corresponding；
Described extension bar (4) is the shaft-like steel components of cylinder；
Described oblique Loose core block (5) is provided with the inner side shape with product (06) above block steel components, oblique Loose core block (5)
The corresponding type face of shape, the right side of oblique Loose core block (5) is provided with type face corresponding with the deep back-off (061) in the inner side of product (06)；
Oblique Loose core block (5) is fixedly connected on above oblique top helical rack (2), is directly pushed up spur rack (1) and is fixedly connected on extension bar (4)
Above；Straight top spur rack (1) and oblique top helical rack (2) are each passed through the straight guide hole (31) of guide pin bushing (3) and oblique guide hole
(32) and in guide pin bushing (3) internal chiasma engagement；With being contacted above guide pin bushing (3) below oblique Loose core block (5)；
Using when, oblique Loose core block (5) is slidably disposed in the resettlement groove of core (01) setting, and guide pin bushing (3) and core (01) are fixed to be connected
Connect, the bottom of oblique top helical rack (2) is located in the avoiding hollow groove that core (01) is set, and directly pushes up bottom and the extension bar of spur rack (1)
(4) slide downward passes through core (01) and dynamic model support plate (02), and the lower end of extension bar (4) is fixedly connected with top plate (03).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231012.XA CN104859107B (en) | 2015-05-04 | 2015-05-04 | A kind of rack slant-top core-pulling stripper apparatus of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510231012.XA CN104859107B (en) | 2015-05-04 | 2015-05-04 | A kind of rack slant-top core-pulling stripper apparatus of injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859107A CN104859107A (en) | 2015-08-26 |
| CN104859107B true CN104859107B (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510231012.XA Active CN104859107B (en) | 2015-05-04 | 2015-05-04 | A kind of rack slant-top core-pulling stripper apparatus of injection mold |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553837A (en) * | 2017-09-27 | 2018-01-09 | 浙江凯华模具有限公司 | Injection mold straight top type angled-lift splits wide-angle small―gap suture side core-pulling mechanism |
| CN113618979A (en) * | 2021-08-02 | 2021-11-09 | 浙江凯华模具有限公司 | Convenient ejecting oblique top subassembly |
| CN113635524B (en) * | 2021-08-02 | 2022-10-25 | 浙江凯华模具有限公司 | Injection mold rack pushes up mechanism to one side |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201659652U (en) * | 2010-04-01 | 2010-12-01 | 嘉兴信元精密模具科技有限公司 | Obliquely jacking demoulding structure |
| CN201998365U (en) * | 2011-03-18 | 2011-10-05 | 中山市恒滨塑胶模具有限公司 | Mechanical long core-pulling mechanism |
| CN202162964U (en) * | 2011-07-20 | 2012-03-14 | 嘉兴信元精密模具科技有限公司 | Straight-ejection large inclination 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 |
| CN204585741U (en) * | 2015-05-04 | 2015-08-26 | 宁波双林模具有限公司 | A kind of tooth bar slant-top core-pulling stripper apparatus of injection mold |
-
2015
- 2015-05-04 CN CN201510231012.XA patent/CN104859107B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201659652U (en) * | 2010-04-01 | 2010-12-01 | 嘉兴信元精密模具科技有限公司 | Obliquely jacking demoulding structure |
| CN201998365U (en) * | 2011-03-18 | 2011-10-05 | 中山市恒滨塑胶模具有限公司 | Mechanical long core-pulling mechanism |
| CN202162964U (en) * | 2011-07-20 | 2012-03-14 | 嘉兴信元精密模具科技有限公司 | Straight-ejection large inclination 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 |
| CN204585741U (en) * | 2015-05-04 | 2015-08-26 | 宁波双林模具有限公司 | A kind of tooth bar slant-top core-pulling stripper apparatus of injection mold |
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| Publication number | Publication date |
|---|---|
| CN104859107A (en) | 2015-08-26 |
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