CN104859107A - Rack inclined ejection core pulling demolding device of injection mold - Google Patents
Rack inclined ejection core pulling demolding device of injection mold Download PDFInfo
- Publication number
- CN104859107A CN104859107A CN201510231012.XA CN201510231012A CN104859107A CN 104859107 A CN104859107 A CN 104859107A CN 201510231012 A CN201510231012 A CN 201510231012A CN 104859107 A CN104859107 A CN 104859107A
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- Prior art keywords
- straight
- rack
- core
- oblique
- ejection
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a rack inclined ejection core pulling demolding device of an injection mold; and the device comprises a straight ejection straight rack (1), an inclined ejection inclined rack (2), a guide sleeve (3), a lengthened rod (4) and an inclined core pulling block (5). The inclined core pulling block is fixedly connected to the upper surface of the inclined ejection inclined rack; the straight ejection straight rack and the inclined ejection inclined rack are across engaged to penetrate through the guide sleeve; the inclined core pulling block is positioned in a placing tank of a molding core; the guide sleeve is fixedly connected with the molding core; the lower part of the straight ejection straight rack is fixedly connected with a top plate by the lengthened rod; in working, the top plate drives the straight ejection straight rack to upwards move by the lengthened rod; under the effect of being engaged with the straight ejection straight rack, the inclined ejection inclined rack drives the inclined core pulling block to aslant move to lower, upper and left sides; when the inclined core pulling block upwards ejects a product to leave from the molding core, the inclined core pulling block is transversely deviated from a structure deeply buckled at the inner side of the product to the left side in a core pulling manner; and because of the characteristic of the rack inclined ejection adapting to a large inclined ejection angle, the injection mold provided with the inner side deep buckling structure achieves the purposes of shortening the ejection travel, reducing the mold shape and reducing the mold manufacturing and operation costs.
Description
Technical field
The present invention relates to the core_pulling demoulding device of injection mold, specifically refer to the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold extracted out by the pellet be embedded in inside goods in dark back-off structure for injection mold.
Background technology
Back-off refers in injection-molded item, flange, fastener or convex rib structure that core_pulling demoulding direction is crossing with the folding direction of mould; In the face of extraneous one side is called outside during injection-molded item application, the another side relative with described outside is called inner side; Opsition dependent, back-off divides again outside back-off and inner reverse fastener two kinds; For outside back-off, prior art adopts the transverse slider of transverse movement to carry out core_pulling demoulding; For inner reverse fastener, prior art adopts to loose core the slant-top core-pulling device that block forms by angle ejector rod, tiltedly, carries out core_pulling demoulding, loose core also known as angle ejector rod by oblique top oblique movement; What the degree of depth of back-off or length were greater than three times of product wall thickness is called dark back-off, for the dark back-off in inner side, because angle ejector rod is loosed core, to adapt to the angle of oblique top little, oblique top angle is less than or equal to 12 °, therefore ejection stroke is long, make mould body large, need the injection machine using large gauge when mould runs, cause the manufacture of mould and the integrated cost of operation to occupy high; Therefore, there are the problems and shortcomings that ejection stroke is long, mould body is large, integrated cost is high in prior art.
Summary of the invention
For above-mentioned prior art Problems existing with not enough, the present invention adopts by directly pushing up spur rack, oblique top helical rack, guide pin bushing, extension bar, tiltedly loosing core the device that block forms, and straight top spur rack is provided with the tooth bar of horizontal trapezoid teeth before being, oblique top helical rack is provided with the tooth bar of oblique trapezoidal teeth after being, guide pin bushing is provided with straight guide hole and oblique guide hole, block of tiltedly loosing core 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 of guide pin bushing and oblique guide hole and the engagement that intersects, tiltedly loose core below block with the contacting above of guide pin bushing, during application, block of tiltedly loosing core slides and is arranged in the resettlement groove of core setting, and guide pin bushing is fixedly connected with core, and the bottom of oblique top helical rack is arranged in the avoiding hollow groove of core setting, the bottom of straight top spur rack and extension bar slide downward are through core and dynamic model support plate, and the lower end of extension bar is fixedly connected with top board, during work, top board drives straight push rod, extension bar and straight top spur rack move upward, be subject to and the straight effect of pushing up spur rack and engaging, oblique top helical rack drives block oblique movement left from bottom to top of tiltedly loosing core, while block of tiltedly loosing core departs from core with the synchronous upwards pushing tow goods of straight push rod, transverse shifting is loosed core the technical scheme spun off from the structure of the dark back-off in the inner side of goods left, a kind of tooth bar slant-top core-pulling stripper apparatus of injection mold is provided, be intended to utilize tooth bar oblique top to adapt to the large feature of oblique top angle, make the injection mold being provided with the dark back-off structure in inner side, reach shortening ejection stroke, reduce mould body, reduce the object of Making mold and operating cost.
The object of the present invention is achieved like this: a kind of tooth bar slant-top core-pulling stripper apparatus of injection mold, comprise and directly push up spur rack, oblique top helical rack, guide pin bushing, extension bar, tiltedly to loose core block, wherein: described straight top spur rack is cross section semicircular in shape, the rectangular shaft-like steel components being provided with horizontal trapezoid straight-tooth denture above;
Described oblique top helical rack is cross section semicircular in shape, is provided with the rectangular shaft-like steel components that backsight is acclivitous oblique trapezoidal helical teeth denture from left to right below;
Described guide pin bushing is the steel components of rectangular block shape, and the front left part above guide pin bushing is provided with the through hole be tilted to the right from top to bottom and is called oblique guide hole, the rear right part above guide pin bushing be provided with from top to bottom to through hole be called straight guide hole; Described oblique guide hole cuts mutually with the internal chiasma of straight guide hole at guide pin bushing, and described oblique guide hole is corresponding with the shape of cross section directly pushing up spur rack with oblique top helical rack respectively with the shape of cross section of straight guide hole;
Described extension bar is the shaft-like steel components of cylinder;
Described block of tiltedly loosing core is block steel components, and be provided with the profile corresponding with the inner shape of goods above block of tiltedly loosing core, the right side of block of tiltedly loosing core is provided with the profile corresponding with the dark back-off in the inner side of goods;
Block of tiltedly loosing core 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 described straight guide hole of guide pin bushing and oblique guide hole and engage in guide pin bushing internal chiasma; Tiltedly loose core below block with the contacting above of guide pin bushing;
During application, block of tiltedly loosing core slides and is arranged in the resettlement groove of core setting, and guide pin bushing is fixedly connected with core, and the bottom of oblique top helical rack is arranged in the avoiding hollow groove of core setting, the bottom of straight top spur rack and extension bar slide downward are through core and dynamic model support plate, and the lower end of extension bar is fixedly connected with top board.
The face, direction of said structure statement is divided into up, down, left, right, front, rear side, wherein, before be face in the face of this device front view, after be and described before relative face.
Operation principle and beneficial effect
During work, top board drives straight push rod, extension bar and straight top spur rack to move upward, oblique top helical rack is subject to and the engagement of directly pushing up spur rack, oblique top helical rack drives block oblique movement left from bottom to top of tiltedly loosing core, while block of tiltedly loosing core departs from core with the synchronous upwards pushing tow goods of straight push rod, transverse shifting is loosed core and is spun off from the structure of the dark back-off in the inner side of goods left.
This apparatus structure is simple, reliable operation, and oblique top angle can reach 20 °, the angle adapting to oblique top is large, significantly can shorten ejection stroke, the cost of make the injection mold being provided with the dark back-off structure in inner side, reduce mould body, reduce Making mold and mould operation; In addition, this device highly versatile, is easy to form standard normalized universal component, has the meaning of pervasive popularization.
Above-mentioned, the present invention adopts by directly pushing up spur rack, oblique top helical rack, guide pin bushing, extension bar, tiltedly loosing core the device that block forms, and straight top spur rack is provided with the tooth bar of horizontal trapezoid teeth before being, oblique top helical rack is provided with the tooth bar of oblique trapezoidal teeth after being, guide pin bushing is provided with straight guide hole and oblique guide hole, block of tiltedly loosing core 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 of guide pin bushing and oblique guide hole and the engagement that intersects, tiltedly loose core below block with the contacting above of guide pin bushing, during application, block of tiltedly loosing core slides and is arranged in the resettlement groove of core setting, and guide pin bushing is fixedly connected with core, and the bottom of oblique top helical rack is arranged in the avoiding hollow groove of core setting, the bottom of straight top spur rack and extension bar slide downward are through core and dynamic model support plate, and the lower end of extension bar is fixedly connected with top board, during work, top board drives straight push rod, extension bar and straight top spur rack move upward, be subject to and the straight effect of pushing up spur rack and engaging, oblique top helical rack drives block oblique movement left from bottom to top of tiltedly loosing core, while block of tiltedly loosing core departs from core with the synchronous upwards pushing tow goods of straight push rod, transverse shifting is loosed core the technical scheme spun off from the structure of the dark back-off in the inner side of goods left, overcoming prior art, to there is ejection stroke long, mould body is large, the problems and shortcomings that integrated cost is high, the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold provided, tooth bar oblique top is utilized to adapt to the large feature of oblique top angle, make the injection mold being provided with the dark back-off structure in inner side, reach shortening ejection stroke, reduce mould body, reduce the object of Making mold and operating cost.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention;
Fig. 2 is the backsight structural representation of the oblique top helical rack 2 of the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention;
Fig. 3 is the plan structure schematic diagram of the guide pin bushing 3 of the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention;
Fig. 4 is that the axle of the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention surveys decomposing schematic representation;
Fig. 5 is the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention and the schematic diagram of application mould annexation;
Fig. 6 is the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention, is operated in the principle schematic of slant-top core-pulling 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: straight top spur rack 1, straight-tooth 11, oblique top helical rack 2, helical teeth 21, guide pin bushing 3, straight guide hole 31, tiltedly guide hole 32, extension bar 4, tiltedly to loose core block 5, core 01, dynamic model support plate 02, top board 03, straight push rod 04, base plate 05, goods 06, the dark back-off 061 in inner side.
Detailed description of the invention
Consult Fig. 1 ~ Fig. 6, the tooth bar slant-top core-pulling stripper apparatus of a kind of injection mold of the present invention, comprise straight top spur rack 1, oblique top helical rack 2, guide pin bushing 3, extension bar 4, tiltedly to loose core block 5, wherein: described straight top spur rack 1 is cross section semicircular in shape, the rectangular shaft-like steel components being provided with horizontal trapezoid straight-tooth 11 denture above;
Described oblique top helical rack 2 is cross section semicircular in shape, is provided with the rectangular shaft-like steel components that backsight is acclivitous oblique trapezoidal helical teeth 21 denture from left to right below;
Described guide pin bushing 3 is the steel components of rectangular block shape, and the front left part above guide pin bushing 3 is provided with the through hole be tilted to the right from top to bottom and is called oblique guide hole 32, the rear right part above guide pin bushing 3 be provided with from top to bottom to through hole be called straight guide hole 31; Described oblique guide hole 32 cuts in the internal chiasma of guide pin bushing 3 mutually with straight guide hole 31, and described oblique guide hole 32 is corresponding with the shape of cross section directly pushing up spur rack 1 with oblique top helical rack 2 respectively with the shape of cross section of straight guide hole 31;
Described extension bar 4 is the shaft-like steel components of cylinder;
Described block 5 of tiltedly loosing core is block steel components, and be provided with the profile corresponding with the inner shape of goods 06 above block 5 of tiltedly loosing core, the right side of block 5 of tiltedly loosing core is provided with the profile corresponding with the dark back-off in the inner side of goods 06 061;
Block 5 of tiltedly loosing core is fixedly connected on above oblique top helical rack 2, and straight top spur rack 1 is fixedly connected on above extension bar 4; Straight top spur rack 1 and oblique top helical rack 2 are each passed through the described straight guide hole 31 of guide pin bushing 3 and oblique guide hole 32 and engage in guide pin bushing 3 internal chiasma; Tiltedly loose core below block 5 with the contacting above of guide pin bushing 3;
During application, block 5 of tiltedly loosing core slides and is arranged in the resettlement groove of core 01 setting, guide pin bushing 3 is fixedly connected with core 01, the bottom of oblique top helical rack 2 is arranged in the avoiding hollow groove of core 01 setting, the bottom of straight top spur rack 1 and extension bar 4 slide downward are through core 01 and dynamic model support plate 02, and the lower end of extension bar 4 is fixedly connected with top board 03.
The face, direction of said structure statement is divided into up, down, left, right, front, rear side, wherein, before be face in the face of this device front view, after be and described before relative face.
Operation principle and beneficial effect
During work, top board 03 drives straight push rod 04, extension bar 4 and straight top spur rack 1 to move upward, oblique top helical rack 2 is subject to and the engagement of directly pushing up spur rack 1, oblique top helical rack 2 drives block 5 oblique movement left from bottom to top of tiltedly loosing core, block 5 of tiltedly loosing core is synchronous while upwards pushing tow goods 06 depart from core 01 with straight push rod 04, and transverse shifting is loosed core and spun off from the structure of the dark back-off 061 in the inner side of goods 06 left.
This apparatus structure is simple, reliable operation, and oblique top angle can reach 20 °, the angle adapting to oblique top is large, significantly can shorten ejection stroke, the cost of make the injection mold being provided with dark back-off 061 structure in inner side, reduce mould body, reduce Making mold and mould operation; In addition, this device highly versatile, is easy to form standard normalized universal component, has the meaning of pervasive popularization.
Claims (1)
1. the tooth bar slant-top core-pulling stripper apparatus of an injection mold, comprise and directly push up spur rack (1), oblique top helical rack (2), guide pin bushing (3), extension bar (4), tiltedly to loose core block (5), it is characterized in that: described straight top spur rack (1) is cross section semicircular in shape, is provided with the rectangular shaft-like steel components of horizontal trapezoid straight-tooth (11) denture above;
Described oblique top helical rack (2) is cross section semicircular in shape, is provided with the rectangular shaft-like steel components that backsight is acclivitous oblique trapezoidal helical teeth (21) denture from left to right below;
The steel components that described guide pin bushing (3) is rectangular block shape, front left part above guide pin bushing (3) is provided with the through hole be tilted to the right from top to bottom and is called oblique guide hole (32), the rear right part above guide pin bushing (3) be provided with from top to bottom to through hole be called straight guide hole (31); Described oblique guide hole (32) is cut mutually with the internal chiasma of straight guide hole (31) at guide pin bushing (3), and the shape of cross section of described oblique guide hole (32) and straight guide hole (31) is respectively with oblique top helical rack (2) with directly to push up the shape of cross section of spur rack (1) corresponding;
Described extension bar (4) is the shaft-like steel components of cylinder;
Described block of tiltedly loosing core (5) is block steel components, what tiltedly loose core block (5) is above provided with the profile corresponding with the inner shape of goods (06), and the right side of block (5) of tiltedly loosing core is provided with the profile corresponding with the dark back-off in the inner side (061) of goods (06);
Block (5) of tiltedly loosing core is fixedly connected on above oblique top helical rack (2), directly pushes up spur rack (1) and is fixedly connected on above extension bar (4); Straight top spur rack (1) and oblique top helical rack (2) are each passed through the described straight guide hole (31) of guide pin bushing (3) and oblique guide hole (32) and engage in guide pin bushing (3) internal chiasma; Tiltedly loose core below block (5) with the contacting above of guide pin bushing (3);
During application, block (5) of tiltedly loosing core slip is arranged in the resettlement groove that core (01) is arranged, guide pin bushing (3) is fixedly connected with core (01), the bottom of oblique top helical rack (2) is arranged in the avoiding hollow groove that core (01) is arranged, the bottom on straight top spur rack (1) and extension bar (4) slide downward are through core (01) and dynamic model support plate (02), and the lower end of extension bar (4) is fixedly connected with top board (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 |
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| 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 |
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| CN104859107A true CN104859107A (en) | 2015-08-26 |
| CN104859107B CN104859107B (en) | 2017-09-19 |
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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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Cited By (8)
| 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 |
| CN108145924A (en) * | 2018-01-22 | 2018-06-12 | 常州华威模具有限公司 | It is a kind of to eject the structure for realizing that product tilts demoulding by conventional |
| CN109049548A (en) * | 2018-08-02 | 2018-12-21 | 阳江市睿精模塑有限公司 | A kind of releasing process structure of straight pushing belt oblique top |
| CN110561701A (en) * | 2019-09-09 | 2019-12-13 | 华域视觉科技(上海)有限公司 | cross core pulling structure and injection mold |
| CN110696237A (en) * | 2019-10-29 | 2020-01-17 | 昆山咏联电子塑胶有限公司 | Pitched roof mold |
| CN113618979A (en) * | 2021-08-02 | 2021-11-09 | 浙江凯华模具有限公司 | Convenient ejecting oblique top subassembly |
| CN113635524A (en) * | 2021-08-02 | 2021-11-12 | 浙江凯华模具有限公司 | Injection mold rack pushes up mechanism to one side |
| CN115008698A (en) * | 2022-06-22 | 2022-09-06 | 深圳兴精科塑胶模具有限公司 | Super-large acceleration and deceleration angle pitched roof mechanism and method |
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| 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 |
| CN108145924A (en) * | 2018-01-22 | 2018-06-12 | 常州华威模具有限公司 | It is a kind of to eject the structure for realizing that product tilts demoulding by conventional |
| CN109049548A (en) * | 2018-08-02 | 2018-12-21 | 阳江市睿精模塑有限公司 | A kind of releasing process structure of straight pushing belt oblique top |
| CN110561701A (en) * | 2019-09-09 | 2019-12-13 | 华域视觉科技(上海)有限公司 | cross core pulling structure and injection mold |
| CN110696237A (en) * | 2019-10-29 | 2020-01-17 | 昆山咏联电子塑胶有限公司 | Pitched roof mold |
| CN113618979A (en) * | 2021-08-02 | 2021-11-09 | 浙江凯华模具有限公司 | Convenient ejecting oblique top subassembly |
| CN113635524A (en) * | 2021-08-02 | 2021-11-12 | 浙江凯华模具有限公司 | Injection mold rack pushes up mechanism to one side |
| 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 |
| WO2023010720A1 (en) * | 2021-08-02 | 2023-02-09 | 浙江凯华模具有限公司 | Rack angle lifter mechanism for injection mold |
| CN115008698A (en) * | 2022-06-22 | 2022-09-06 | 深圳兴精科塑胶模具有限公司 | Super-large acceleration and deceleration angle pitched roof mechanism and method |
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| CN104859107B (en) | 2017-09-19 |
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