CN104827634A - Thread-demoulding mechanism for internal threads with large internal diameter and mould thereof - Google Patents
Thread-demoulding mechanism for internal threads with large internal diameter and mould thereof Download PDFInfo
- Publication number
- CN104827634A CN104827634A CN201510207685.1A CN201510207685A CN104827634A CN 104827634 A CN104827634 A CN 104827634A CN 201510207685 A CN201510207685 A CN 201510207685A CN 104827634 A CN104827634 A CN 104827634A
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- China
- Prior art keywords
- thread
- head
- mould
- slide body
- ejector rod
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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
-
- 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
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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 provides a thread-demoulding mechanism for internal threads with a large internal diameter and a mould thereof. The thread-demoulding mechanism comprises a first thread head inclined ejector rod, a first thread head sliding block head, a central core-pulling locking block, a second thread head inclined ejector rod, a second thread head sliding block head, a first sliding block body, a second sliding block body, a first sliding block body spring, a second sliding block body spring, a central guide groove, a second inclined ejector base, and a first inclined ejector base. The provided technical scheme is suitable for disc-shaped plastic products with an internal thread having an internal diameter of 80 mm or more in the moulding process. In the conventional method, the rotation-type internal thread-demoulding mechanism is very complicated, the corresponding ejector pin, push plate, and push mechanism used in the demoulding process are difficult to produce; while in the provided technical scheme, a novel internal thread demoulding mode is provided, a slide block internal core-pulling mechanism is adopted, at the same time an inclined ejection technology is adopted, thus the complexity of the mould is largely reduced, the production cost of the mould is reduced, the manufacturing period of the mould is shortened, and the mould has the advantages of reasonable design, compact structure, stable work state, safety, reliability, and user-friendliness.
Description
Technical field
The present invention relates to injection mold mechanism design field, be specially a kind of large diameter internal thread Leave out thread mechanism and mould thereof.
Background technology
For time molded with minor diameter of internal thread d>80mm above plate-like class plastic products; as shown in Figure 1; during mould structure design; as adopted rotary type internal thread Leave out thread mould emptier, ejecting in conjunction with thimble or mechanism product; the processing and manufacturing difficulty of mould will be strengthened; mould manufacturing cost will sharply increase; in view of this; according to the internal thread stripping means that brand-new slide block internal core-pulling mechanism and lifter ejection combine; to greatly reduce the complexity of mould, reduce mould production cost and reduce die manufacturing cycle.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of large diameter internal thread Leave out thread mechanism and mould thereof, reasonable in design, compact conformation, and working stability is safe and reliable, easy-to-use; For solving above-mentioned existing technical problem, the present invention adopts following scheme: a kind of large diameter internal thread Leave out thread mechanism and mould thereof, comprises the first thread head angle ejector rod, latch segment, the second thread head angle ejector rod, the second thread head slider head, the first slide body, the second slide body, the first slide body spring, the second slide body spring, central gathering sill, the second tilted footstock, the first tilted footstock are loosed core in the first thread head slider head, central authorities.
As preferably, loose core latch segment, the head of the second thread head angle ejector rod, the second thread head slider head of the head of described first thread head angle ejector rod, the first thread head slider head, central authorities forms plastic product central, threaded position building core;
As preferably, described first thread head slider head is installed on the first slide body by screw; Second thread head slider head is installed on the second slide body by screw; First thread head slider head, the second thread head slider head connect respectively by oblique T-slot and central authorities latch segment of loosing core; Central authorities' latch segment interference of loosing core is installed on mold cavity mold insert;
As preferably, described first slide body, the second slide body are installed on central gathering sill by T-slot, can slide along T-slot; First slide body, the second slide body tail end are equipped with the first slide body spring, the second slide body spring respectively; Central authorities' gathering sill is installed on mould template by screw;
As preferably, described first thread head angle ejector rod lower end is installed on the first tilted footstock, the second thread head angle ejector rod lower end is installed on the second tilted footstock, and the second tilted footstock, the first tilted footstock are installed on die thimble push plate.
Beneficial effect: a kind of large diameter internal thread Leave out thread mechanism that the present invention adopts technique scheme to provide and mould thereof, for time molded with minor diameter of internal thread d>80mm above plate-like class plastic products, overcome the complexity adopting rotary type internal thread Leave out thread mechanism, and the relative manufacture difficulty of processing of the thimble combined with it and mould during mechanism ejection device; The internal thread stripping means that this programme adopts brand-new slide block internal core-pulling mechanism and lifter ejection to combine, will reduce the complexity of mould greatly, reduces mould production cost and reduces die manufacturing cycle; Mould structure design is reasonable, compact conformation, and working stability is safe and reliable, easy-to-use.
Accompanying drawing explanation
Fig. 1 is a kind of large diameter internal thread Leave out thread mechanism of the present invention and mould institute application product schematic diagram thereof;
Fig. 2 is a kind of large diameter internal thread Leave out thread mechanism of the present invention and mold layout schematic diagram;
Fig. 3 is a kind of large diameter internal thread of the present invention Leave out thread mechanism single die cavity thread core composition schematic diagram;
Fig. 4 is a kind of large diameter internal thread Leave out thread mechanism's slipper block loose core Leave out thread assembly of the present invention scheme of installation on mould;
Fig. 5 is a kind of large diameter internal thread Leave out thread mechanism's angle ejector rod Leave out thread assembly of the present invention scheme of installation on mould.
Detailed description of the invention
Fig. 2-5 is depicted as related description figure of the present invention;
A kind of large diameter internal thread Leave out thread mechanism and mould thereof, comprise the first thread head angle ejector rod 1, first thread head slider head 2, latch segment 3, second thread head angle ejector rod 4, second thread head slider head 5, first slide body 6, second slide body 7, first slide body spring 8, second slide body spring 9, central gathering sill 10, second tilted footstock 11, first tilted footstock 12 are loosed core in central authorities, as shown in Fig. 2, Fig. 4, Fig. 5.
The loose core head of latch segment 3, second thread head angle ejector rod 4, the second thread head slider head 5 of the head of described first thread head angle ejector rod 1, the first thread head slider head 2, central authorities forms plastic product central, threaded position building core;
Described first thread head slider head 2 is installed on the first slide body 6 by screw; Second thread head slider head 5 is installed on the second slide body 7 by screw; First thread head slider head 2, second thread head slider head 5 connects respectively by oblique T-slot and central authorities latch segment 3 of loosing core; Central authorities' latch segment 3 interference of loosing core is installed on mold cavity mold insert;
Described first slide body 6, second slide body 7 is installed on central gathering sill 10 by T-slot, can slide along T-slot; First slide body 6, second slide body 7 tail end is equipped with the first slide body spring 8, second slide body spring 9 respectively; Central authorities' gathering sill 10 is installed on mould template by screw;
Described first thread head angle ejector rod 1 lower end is installed on the first tilted footstock 12, the second thread head angle ejector rod 4 lower end is installed on the second tilted footstock 11, and the second tilted footstock 11, first tilted footstock 12 is installed on die thimble push plate.
Further, illustrate for ease of operation principle of the present invention, in Fig. 5, need the mould structure part pointed out to comprise counterdie seat board 13, thimble push plate 14, thimble cover plate 15, mould pin 16, core fixing plate 17, core mold insert 18, die cavity mold insert 19, impression bolster 20, upper clamping plate 21, ejecting limit block 22, release link 23.
During real work, as shown in Fig. 3, Fig. 4, Fig. 5, its motion operation principle is as follows:
1) after slide block screw thread position core_pulling demoulding mold cavity is opened, under the pulling of injection machine push rod, mould dynamic model part is progressively separated with cover half part, now, central authorities' latch segment 3 of loosing core will pull the first thread head slider head 2 by T-slot, both second thread head slider heads 5 are to central contraction, thus drive the first slide body 6, second slide body 7 is in the T-slot of central gathering sill 10 and respective promotion spring first slide body spring 8, under the promotion of the second slide body spring 9, also synchronous to central contraction, treat that central authorities loose core latch segment 3 and the first thread head slider head 2, second thread head slider head 5 is separated completely, first slide body 6, after both second slide bodies 7 are drawn close, both are respectively S/2 to the distance of central contraction, as shown in Figure 4, now, first thread head slider head 2, second thread head slider head 5 is separated with product at screw thread position respectively respectively completely, complete the core_pulling demoulding at slide block screw thread position,
2) demoulding at angle ejector rod head threads position and product eject from the above, under the pulling of injection machine push rod, mould dynamic model part continues to be separated with cover half part, after above-mentioned first step action completes, promotion thimble push plate 14 moves upward by injection machine push rod, thus product ejects along the gathering sill in core mold insert 18 by promotion the first thread head angle ejector rod 1, second thread head angle ejector rod 4, head from the first thread head angle ejector rod 1, second thread head angle ejector rod 4 comes off by product, thus completes the screw thread demoulding of whole product and eject; For prevent the first thread head angle ejector rod 1, second thread head angle ejector rod 4 when ejecting finally both head produce interfere, the ejection height that restriction ejection height H limits the first thread head angle ejector rod 1, second thread head angle ejector rod 4 is set by the ejecting limit block 22 be installed on thimble cover plate 15, with the reliability do not interfered when really both eject, as shown in Figure 5;
3) reset mould closes, under the promotion of injection machine push rod, mould dynamic model part will progressively close to cover half part, mould will close, now, the release link 23 being in the state of ejecting first encounters impression bolster 20, and under the withstanding of impression bolster 20, the first thread head angle ejector rod 1, second thread head angle ejector rod 4 is by antecedence reposition; Until central authorities loose core latch segment 3 lower end encounter the first thread head slider head 2, second thread head slider head 5 and insert both T-slot after, one will be produced left to both, the partial pressure of a horizontal direction dorsad to the right, thus, what overcome the first slide body spring 8, second slide body spring 9 suppresses resistance, first thread head slider head 2 and the first slide body 6, second thread head slider head 5 and the second slide body 7 are pushed back reset, subsequently, mould is completely closed, waits for that next injection cycle starts.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit, those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (5)
1. large diameter internal thread Leave out thread mechanism and a mould thereof, comprises the first thread head angle ejector rod (1), latch segment (3), the second thread head angle ejector rod (4), the second thread head slider head (5), the first slide body (6), the second slide body (7), the first slide body spring (8), the second slide body spring (9), central gathering sill (10), the second tilted footstock (11), the first tilted footstock (12) is loosed core in the first thread head slider head (2), central authorities.
2., according to claim 1 large diameter internal thread Leave out thread mechanism and mould thereof, loose core latch segment (3), the head of the second thread head angle ejector rod (4), the second thread head slider head (5) of the head of described first thread head angle ejector rod (1), the first thread head slider head (2), central authorities forms plastic product central, threaded position building core.
3., according to claim 1 large diameter internal thread Leave out thread mechanism and mould thereof, described first thread head slider head (2) is installed on the first slide body (6) by screw; Second thread head slider head (5) is installed on the second slide body (7) by screw; First thread head slider head (2), the second thread head slider head (5) connect respectively by oblique T-slot and central authorities latch segment (3) of loosing core; Central authorities' latch segment (3) interference of loosing core is installed on mold cavity mold insert.
4., according to claim 1 large diameter internal thread Leave out thread mechanism and mould thereof, described first slide body (6), the second slide body (7) are installed on central gathering sill (10) by T-slot, can slide along T-slot; First slide body (6), the second slide body (7) tail end are equipped with the first slide body spring (8), the second slide body spring (9) respectively; Central authorities' gathering sill (10) are installed on mould template by screw.
5. according to claim 1 large diameter internal thread Leave out thread mechanism and mould thereof, described first thread head angle ejector rod (1) lower end is installed on the first tilted footstock (12), the second thread head angle ejector rod (4) lower end is installed on the second tilted footstock (11), and the second tilted footstock (11), the first tilted footstock (12) are installed on die thimble push plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207685.1A CN104827634A (en) | 2015-04-29 | 2015-04-29 | Thread-demoulding mechanism for internal threads with large internal diameter and mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207685.1A CN104827634A (en) | 2015-04-29 | 2015-04-29 | Thread-demoulding mechanism for internal threads with large internal diameter and mould thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104827634A true CN104827634A (en) | 2015-08-12 |
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|---|---|---|---|
| CN201510207685.1A Pending CN104827634A (en) | 2015-04-29 | 2015-04-29 | Thread-demoulding mechanism for internal threads with large internal diameter and mould thereof |
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| CN (1) | CN104827634A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216176A (en) * | 2015-11-06 | 2016-01-06 | 勋龙精密模具(昆山)有限公司 | A kind of mould emptier for processing camera lens ridge |
| CN106003610A (en) * | 2016-07-14 | 2016-10-12 | 福州大学 | Ingenious demolding internal thread mold device and using method thereof |
| CN106738712A (en) * | 2016-12-24 | 2017-05-31 | 浙江工商职业技术学院 | Receipts formula internal thread demoulding mechanism mould in insert |
| CN107042615A (en) * | 2017-04-26 | 2017-08-15 | 泸州市胜科模具制造有限公司 | There is the path plastic parts oblique top slider mould of annular groove on hole wall |
| CN108819128A (en) * | 2018-06-01 | 2018-11-16 | 象山华鼎塑料制品有限公司 | A kind of plastics spring molding die |
| CN109016363A (en) * | 2018-06-09 | 2018-12-18 | 张强 | A kind of internal screw thread typing mechanism demoulding mechanism |
| CN109333938A (en) * | 2018-09-30 | 2019-02-15 | 嘉兴学院 | A kind of inner threaded core-pulling device |
| CN109645745A (en) * | 2019-01-30 | 2019-04-19 | 印象家居股份有限公司 | Combined sofa integral screw threads bindiny mechanism and its processing mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557760A (en) * | 1991-09-03 | 1993-03-09 | Copal Co Ltd | Injection mold having undercut part |
| CN201559287U (en) * | 2009-11-16 | 2010-08-25 | 大连华录模塑产业有限公司 | Internally threaded injection mold |
| CN203844145U (en) * | 2014-05-05 | 2014-09-24 | 昆山市大久电子有限公司 | Injection mold capable of automatically demolding internal threads |
-
2015
- 2015-04-29 CN CN201510207685.1A patent/CN104827634A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557760A (en) * | 1991-09-03 | 1993-03-09 | Copal Co Ltd | Injection mold having undercut part |
| CN201559287U (en) * | 2009-11-16 | 2010-08-25 | 大连华录模塑产业有限公司 | Internally threaded injection mold |
| CN203844145U (en) * | 2014-05-05 | 2014-09-24 | 昆山市大久电子有限公司 | Injection mold capable of automatically demolding internal threads |
Non-Patent Citations (1)
| Title |
|---|
| 温煌英: "内螺纹塑件注射模设计", 《模具制造》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216176A (en) * | 2015-11-06 | 2016-01-06 | 勋龙精密模具(昆山)有限公司 | A kind of mould emptier for processing camera lens ridge |
| CN105216176B (en) * | 2015-11-06 | 2017-05-17 | 勋龙智造精密应用材料（苏州）股份有限公司 | Demoulding mechanism for processing thread teeth of camera lens |
| CN106003610A (en) * | 2016-07-14 | 2016-10-12 | 福州大学 | Ingenious demolding internal thread mold device and using method thereof |
| CN106738712A (en) * | 2016-12-24 | 2017-05-31 | 浙江工商职业技术学院 | Receipts formula internal thread demoulding mechanism mould in insert |
| CN107042615A (en) * | 2017-04-26 | 2017-08-15 | 泸州市胜科模具制造有限公司 | There is the path plastic parts oblique top slider mould of annular groove on hole wall |
| CN108819128A (en) * | 2018-06-01 | 2018-11-16 | 象山华鼎塑料制品有限公司 | A kind of plastics spring molding die |
| CN109016363A (en) * | 2018-06-09 | 2018-12-18 | 张强 | A kind of internal screw thread typing mechanism demoulding mechanism |
| CN109333938A (en) * | 2018-09-30 | 2019-02-15 | 嘉兴学院 | A kind of inner threaded core-pulling device |
| CN109645745A (en) * | 2019-01-30 | 2019-04-19 | 印象家居股份有限公司 | Combined sofa integral screw threads bindiny mechanism and its processing mold |
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Application publication date: 20150812 |