CN201824531U - Delayed forced demolding mechanism for injection molds - Google Patents
Delayed forced demolding mechanism for injection molds Download PDFInfo
- Publication number
- CN201824531U CN201824531U CN2010205403491U CN201020540349U CN201824531U CN 201824531 U CN201824531 U CN 201824531U CN 2010205403491 U CN2010205403491 U CN 2010205403491U CN 201020540349 U CN201020540349 U CN 201020540349U CN 201824531 U CN201824531 U CN 201824531U
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- Prior art keywords
- pellet
- limited block
- pull bar
- delay
- core
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- Expired - Lifetime
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Abstract
The utility model provides a delayed forced demolding mechanism for injection molds, which comprises a core block (1), a core block draw bar (2), a limit block (21) and a delay chute (3). The technical scheme includes that when the delayed forced demolding mechanism is used for demolding, a product is ejected forwards together with a covered mold core of the core block out of a movable mold core by the aid of a product ejector rod, then the core block is drawn by the limit block to stop forward movement, the limit block is stopped by the delay chute (3), and elasticity of the reversely fastened product during continuous demolding of the product is utilized so that the mold core of the core block is forcedly extracted out of a covering at a reversely fastened position of the product. The delayed forced demolding mechanism overcomes the shortcomings of large labor consumption, high work intensity, low efficiency, high cost and hidden accident risks in the prior art, can realize automatic demolding of the injection molds for injection molded products with reversely fastened clamping claws, and achieves the purposes of reducing labor consumption, relieving work intensity, improving production efficiency, decreasing cost and eliminating hidden accident risks.
Description
Technical field
The utility model relates to the mould emptier of injection mold, specifically is meant the dynamic model part that is applied in injection mold, is used for core block is deviate from from the injection-molded item pressure time-delay forced demoulding mechanism of a kind of injection mold of purposes.
Background technology
The back-off claw position of some injection-molded item, all be coated on demoulding difficulty in the mold cores because of inside and outside, for example, the demoulding at the claw position of automobile wire casing goods, prior art adopts the method for the embedding core demoulding, promptly, participate in moulding by manually the embedding pellet being embedded in the dynamic mould core during injection moulding, the embedding pellet is ejected together together with goods during the demoulding, by manually the embedding pellet being extracted out from goods, so goes round and begins again again; Usually preparing a plurality of embedding pellets in the actual production uses for turnover.Embedding pellet method is produced must Attended mode, takies artificial many and working strength is big; The artificial embedding pellet of placing needs holding time, causes that production efficiency is low, integrated cost is high; Destructive accident can take place in the artificial embedding pellet such as not in place of placing, and manually places the embedding core if meet the injection machine involuntary maneuver, then industrial accident can take place; Therefore, prior art exist take artificial many, working strength is big, efficient is low, cost is high, the problems and shortcomings of the accident potential that hides.
Summary of the invention
At the problems and shortcomings that above-mentioned prior art exists, the utility model adopts the time-delay forced demoulding mechanism that is made of pellet, pellet pull bar, limited block, time-delay slideway is set in mould; During the demoulding; to be ejected the arrangement caulking groove of dynamic mould core by the core part of the pellet of goods back-off position coating together forward with goods by the goods push rod earlier; hold pellet by the limited block that is stopped by time-delay slideway limit again and stop reach; utilize the elastic characteristic at goods back-off position; continue in the process of the pushing tow goods demoulding at the goods push rod; make the core part of the pellet that is coated by goods back-off position from the coating at goods back-off position, force to extract out the technical scheme that breaks away from; a kind of time-delay forced demoulding mechanism of injection mold is provided; be intended to deviate from the arrangement caulking groove of dynamic mould core by time-delay earlier; force to extract out the core part of pellet again; make injection mold can realize automatic demoulding, reach the minimizing recruitment with back-off claw position injection-molded item; alleviate working strength; enhance productivity; reduce cost; eliminate the purpose of accident potential.
The purpose of this utility model is achieved in that a kind of time-delay forced demoulding mechanism of injection mold, comprise pellet, pellet pull bar, limited block, time-delay slideway, wherein: described pellet is used for the moulded products back-off slide core block position, steel for being arranged in the dynamic mould core; The top of pellet is a core part, is provided with and the identical outer profile of the inner profile at goods back-off position; The core part of pellet is following to be the slide bar portion of rectangle column; The bottom center of the slide bar portion of pellet is provided with the internal thread that is used to connect purposes;
Described pellet pull bar is cylindrical elongated rod shape steel components; The bottom of pellet pull bar is provided with the cap end of flange step, the top of pellet pull bar be provided be used to connect purposes, with the external screw thread of the screw-internal thread fit of described pellet slide bar portion bottom;
Described limited block is the cylindrical steel member that the center is provided with through hole; The outer cylinder diameter of limited block is greater than the circumscribed circle diameter of the slide bar portion of described pellet rectangle; The through hole internal diameter of limited block is slightly larger than the externally threaded external diameter of described pellet pull bar;
Described time-delay slideway is in moving platen, supplies bottom to the lower port in the guiding duct of described pellet pull bar slip to be circular inner bore of step along one section cross section locating; The internal diameter of time-delay slideway and the outer cylinder diameter of described limited block are slidingly matched; The length of time-delay slideway is greater than the height sum of the height and the limited block of described pellet core part.
Mutual alignment and annexation
In using mould, from top to bottom, pellet, limited block, pellet pull bar connect as one, wherein, the core part at pellet top is arranged in the arrangement caulking groove of dynamic mould core, the slide bar portion of pellet is arranged in the guiding duct that the dynamic mould core of described arrangement caulking groove below and moving platen slide up and down for the slide bar portion of pellet, limited block be positioned at pellet slide bar portion below, place described time-delay slideway;
The cap end of pellet pull bar bottom be positioned at top board below, the central through hole that the external screw thread at pellet pull bar top is upward through duct that top board passes through for the pellet pull bar, limited block is fixedlyed connected with the internal thread of pellet slide bar portion bottom, and pellet, limited block, pellet pull bar are connected as one; During the mould matched moulds, the pellet pull bar is concordant with the lower port of described time-delay slideway with the joint portion of limited block.
Operation principle
Be horizontal installation during mold work, the fore-and-aft direction of job description is above-mentioned above-below direction.
Injection moulding is finished, the mould die sinking, eject, top board drives the pushing tow goods demoulding forward of goods push rod (not shown), by the core part of the pellet of goods back-off position coating, ejected together the arrangement caulking groove of dynamic mould core forward with goods, also moved forward thereupon with the limited block that links to each other, the pellet pull bar of pellet;
When limited block slid onto the front end of time-delay slideway forward in the time-delay slideway, limited block was stopped reach by retaining, and the pellet that links to each other with limited block also stops reach; At this moment, owing to broken away from the arrangement caulking groove of dynamic mould core by the core part of the pellet of goods back-off position coating, utilize the elastic characteristic at goods back-off position, along with goods continue by the top reach, by the core part of the pellet of goods back-off position coating, from the coating at goods back-off position, force to extract out; During matched moulds, the release link pushing tow top board of mould resets, and top board affects pellet pull bar and the limited block, the pellet that are connected as a single entity to reset.
Above-mentioned, the utility model adopts the time-delay forced demoulding mechanism that is made of pellet, pellet pull bar, limited block, time-delay slideway is set in mould; During the demoulding; to be ejected the arrangement caulking groove of dynamic mould core by the core part of the pellet of goods back-off position coating together forward with goods by the goods push rod earlier; hold pellet by the limited block that is stopped by time-delay slideway limit again and stop reach; utilize the elastic characteristic at goods back-off position; continue in the process of the pushing tow goods demoulding at the goods push rod; make the core part of the pellet that is coated by goods back-off position from the coating at goods back-off position, force to extract out the technical scheme that breaks away from; having overcome the prior art existence takies artificial many; working strength is big; efficient is low; the cost height; the hide problems and shortcomings of accident potential; the time-delay forced demoulding mechanism of a kind of injection mold that is provided; deviate from the arrangement caulking groove of dynamic mould core by time-delay earlier; force to extract out the core part of pellet again; make injection mold can realize automatic demoulding, reached the minimizing recruitment with back-off claw position injection-molded item; alleviate working strength; enhance productivity; reduce cost; eliminate the purpose of accident potential.
Description of drawings
Fig. 1 is the time-delay forced demoulding mechanism of a kind of injection mold of the present utility model, the position in using mould and the schematic diagram of structure;
Fig. 2 be among Fig. 1 A portion draw enlarged drawing;
Fig. 3 is the schematic diagram of the formed in mould goods of application of the time-delay forced demoulding mechanism of a kind of injection mold of the present utility model;
Fig. 4 is the time-delay forced demoulding mechanism of a kind of injection mold of the present utility model, at the operation principle schematic diagram of die sinking tense;
Fig. 5 is the time-delay forced demoulding mechanism of a kind of injection mold of the present utility model, and the core part of pellet ejects the operation principle schematic diagram of dynamic mould core tense together with goods;
Fig. 6 is the time-delay forced demoulding mechanism of a kind of injection mold of the present utility model, and the core part of pellet forces to extract out the operation principle schematic diagram of tense from the coating at goods back-off position.
Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.
Among the figure: pellet 1, pellet pull bar 2, limited block 21, time-delay slideway 3, goods 01, goods back-off position 011, dynamic mould core 02, moving platen 03, top board 04, release link 041, base plate 05, mould pin 06, cover half die cavity 07, solid plate 08.
The specific embodiment
Consult Fig. 1～Fig. 6, the time-delay forced demoulding mechanism of a kind of injection mold of the present utility model, comprise pellet 1, pellet pull bar 2, limited block 21, time-delay slideway 3, wherein: described pellet 1 is used for moulded products back-off position slide core block 011, steel for being arranged in the dynamic mould core 02; The top of pellet is a core part, is provided with and the identical outer profile of the inner profile at goods back-off position 011; The core part of pellet is following to be the slide bar portion of rectangle column; The bottom center of the slide bar portion of pellet is provided with the internal thread that is used to connect purposes;
Described pellet pull bar 2 is cylindrical elongated rod shape steel components; The bottom of pellet pull bar is provided with the cap end of flange step, the top of pellet pull bar be provided be used to connect purposes, with the external screw thread of the screw-internal thread fit of described pellet 1 slide bar portion bottom;
Described limited block 21 is provided with the cylindrical steel member of through hole for the center; The outer cylinder diameter of limited block is greater than the circumscribed circle diameter of the slide bar portion of described pellet 1 rectangle; The through hole internal diameter of limited block is slightly larger than the externally threaded external diameter of described pellet pull bar 2;
Described time-delay slideway 3 is in moving platen 03, supplies bottom to the lower port in the guiding duct of described pellet pull bar 2 slips to be circular inner bore of step along one section cross section locating; The internal diameter of time-delay slideway and the outer cylinder diameter of described limited block 21 are slidingly matched; The length of time-delay slideway is greater than the height sum of the height and the limited block 21 of described pellet 1 core part.
Mutual alignment and annexation
In using mould, from top to bottom, pellet 1, limited block 21, pellet pull bar 2 connect as one, wherein, the core part at pellet 1 top is arranged in the arrangement caulking groove of dynamic mould core 02, the slide bar portion of pellet 1 is arranged in the guiding duct that the dynamic mould core 02 of described arrangement caulking groove below and moving platen 03 slide up and down for the slide bar portion of pellet 1, limited block 21 be positioned at pellet 1 slide bar portion below, place described time-delay slideway 3;
The cap end of pellet pull bar 2 bottoms be positioned at top board 04 below, the external screw thread at pellet pull bar 2 tops is upward through the duct that top board 04 passes through for pellet pull bar 2, the central through hole of limited block 21 is fixedlyed connected with the internal thread of pellet 1 slide bar portion bottom, and pellet 1, limited block 21, pellet pull bar 2 are connected as one; During the mould matched moulds, pellet pull bar 2 is concordant with the lower port of described time-delay slideway 3 with the joint portion of limited block 21.
Operation principle
Be horizontal installation during mold work, the fore-and-aft direction of job description is above-mentioned above-below direction.
Injection moulding is finished, the mould die sinking, eject, top board 04 drives pushing tow goods 01 demoulding forward of goods push rod (not shown), by the core part of the pellet 1 of goods back-off position 011 coating, ejected the arrangement caulking groove of dynamic mould core 02 for one forward with goods 01, with the limited block that links to each other 21, the also reach thereupon of pellet pull bar 2 of pellet 1;
When limited block 21 slid onto the front end of time-delay slideway 3 forward in time-delay slideway 3, limited block 21 was stopped reach by retaining, and the pellet 1 that links to each other with limited block 21 also stops reach; At this moment, owing to broken away from the arrangement caulking groove of dynamic mould core 02 by the core part of the pellet 1 of goods back-off position 011 coating, utilize the elastic characteristic at goods back-off position 011, along with goods 01 continue by the top reach, by the core part of the pellet 1 of goods back-off position 011 coating, from the coating at goods back-off position 011, force to extract out; During matched moulds, the release link 041 pushing tow top board 04 of mould resets, and top board 04 affects pellet pull bar 2 and the limited block 21, the pellet 1 that are connected as a single entity to reset.
Claims (1)
1. the time-delay forced demoulding mechanism of an injection mold, comprise pellet (1), pellet pull bar (2), limited block (21), time-delay slideway (3), it is characterized in that: described pellet (1) is used for moulded products back-off position slide core block (011), steel for being arranged in the dynamic mould core (02); The top of pellet is a core part, is provided with and the identical outer profile of the inner profile at goods back-off position (011); The core part of pellet is following to be the slide bar portion of rectangle column; The bottom center of the slide bar portion of pellet is provided with the internal thread that is used to connect purposes;
Described pellet pull bar (2) is cylindrical elongated rod shape steel components; The bottom of pellet pull bar is provided with the cap end of flange step, the top of pellet pull bar be provided be used to connect purposes, with the external screw thread of the screw-internal thread fit of described pellet (1) slide bar portion bottom;
Described limited block (21) is provided with the cylindrical steel member of through hole for the center; The outer cylinder diameter of limited block is greater than the circumscribed circle diameter of the slide bar portion of described pellet (1) rectangle; The through hole internal diameter of limited block is slightly larger than the externally threaded external diameter of described pellet pull bar (2);
Described time-delay slideway (3) is in moving platen (03), supplies bottom to the lower port in the guiding duct of described pellet pull bar (2) slip to be circular inner bore of step along one section cross section locating; The internal diameter of time-delay slideway and the outer cylinder diameter of described limited block (21) are slidingly matched; The length of time-delay slideway is greater than the height sum of the height and the limited block (21) of described pellet (1) core part;
Mutual alignment and annexation are, in using mould, from top to bottom, pellet (1), limited block (21), pellet pull bar (2) connect as one, wherein, the core part at pellet (1) top is arranged in the arrangement caulking groove of dynamic mould core (02), the slide bar portion of pellet (1) is arranged in the dynamic mould core (02) of described arrangement caulking groove below and the guiding duct that moving platen (03) supplies the slide bar portion of pellet (1) to slide up and down, limited block (21) be positioned at pellet (1) slide bar portion below, place described time-delay slideway (3); The cap end of pellet pull bar (2) bottom be positioned at top board (04) below, the external screw thread at pellet pull bar (2) top is upward through top board (04) fixedlys connected with the internal thread of pellet (1) slide bar portion bottom for the central through hole of the duct passed through of pellet pull bar (2), limited block (21), and pellet (1), limited block (21), pellet pull bar (2) are connected as one; During the mould matched moulds, pellet pull bar (2) is concordant with the lower port of described time-delay slideway (3) with the joint portion of limited block (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205403491U CN201824531U (en) | 2010-09-15 | 2010-09-15 | Delayed forced demolding mechanism for injection molds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205403491U CN201824531U (en) | 2010-09-15 | 2010-09-15 | Delayed forced demolding mechanism for injection molds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201824531U true CN201824531U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205403491U Expired - Lifetime CN201824531U (en) | 2010-09-15 | 2010-09-15 | Delayed forced demolding mechanism for injection molds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201824531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954722A (en) * | 2010-09-15 | 2011-01-26 | 宁海瑞元模塑有限公司 | Delay forced de-molding mechanism of injection mold |
-
2010
- 2010-09-15 CN CN2010205403491U patent/CN201824531U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954722A (en) * | 2010-09-15 | 2011-01-26 | 宁海瑞元模塑有限公司 | Delay forced de-molding mechanism of injection mold |
| CN101954722B (en) * | 2010-09-15 | 2013-05-08 | 宁海瑞元模塑有限公司 | Delay forced de-molding mechanism of injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO RUIYUAN MOULDING CO., LTD. Free format text: FORMER NAME: NINGHAI RUIYUAN MOULDING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 315600, No. 25, metalworking Road, Taoyuan street, Ninghai County, Zhejiang Province Patentee after: Ningbo Ruiyuan Mould & Plastics Co., Ltd. Address before: 315600 No. 2, Jinxing Road, Taoyuan street, Ninghai County, Zhejiang Province Patentee before: Ninghai Ruiyuan Molding Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20130508 |
|
| RGAV | Abandon patent right to avoid regrant |