CN102921920B - Injection molding mold for chain wheel of chain saw - Google Patents
Injection molding mold for chain wheel of chain saw Download PDFInfo
- Publication number
- CN102921920B CN102921920B CN201210479722.0A CN201210479722A CN102921920B CN 102921920 B CN102921920 B CN 102921920B CN 201210479722 A CN201210479722 A CN 201210479722A CN 102921920 B CN102921920 B CN 102921920B
- Authority
- CN
- China
- Prior art keywords
- air guide
- chain
- stator blade
- injection molding
- chain wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection molding mold for a chain wheel of a chain saw. The injection molding mold comprises an upper mold and a lower mold, wherein cavities are formed in the upper mold and the lower mold, and are connected with an injection runner and a pouring gate; air guide pieces with chutes are arranged at the peripheries of the cavities and are T-shaped; the end parts of the air guide pieces are arc-shaped; air guide passages are formed in the air guide pieces; the air guide pieces slide on the upper mold through the matching of the chutes and locking devices; and grooves matched with slip sheets are formed in the lower mold. The injection molding mold has the advantages that mass production in enterprises is realized, so as to improve production efficiency; the technical requirements on operators are low; enterprises' production costs can be reduced; internal gas can be discharged in a guiding manner; and the precision of formed components is high.
Description
Technical field
The present invention relates to a kind of injecting molding die, particularly a kind of injecting molding die for the manufacture of chain wheel for chain saw.
Background technology
Chain wheel for chain saw is an important spare part in chain saw, and its function is to drive saw chain running, thus cutting timber.Sprocket wheel is generally welded by sprocket gear and wheel hub equipment.Traditional sprocket gear manufacturing technology is to make by the method for machining: stamping strip-heat treatment.Traditional machining process, production efficiency is low, can not produce in enormous quantities; Can have a strong impact on the benefit of enterprise.Existing manufacturer, is generally adopting mould to produce, but general mould, because hot liquid injects, cavity pressure increases severely, and makes forming parts discontinuity, produces flaw, causes the quality extreme difference of parts.
Summary of the invention
The object of this invention is to provide a kind of chain wheel for chain saw injecting molding die, it is simple in structure, can guide internal gas, and the dimensional accuracy of the parts of moulding is high.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: chain wheel for chain saw injecting molding die comprises the upper die and lower die that are provided with die cavity, described die cavity is connected with injection runner and cast gate, the surrounding of described die cavity is provided with the stator blade with chute, described stator blade is T-shape, and its end is arc; On described stator blade, have air guide channel; Described stator blade slides by being engaged on patrix of chute and locking device; Described counterdie is provided with the groove coordinating with slide plate.
Hot liquid injects die cavity, causes the gas expansion in die cavity, and die cavity internal pressure increases, and makes forming parts discontinuity, produces flaw; Therefore, the present invention is provided with air guide channel, and guiding internal gas is discharged, thereby improves the quality of parts.
As preferably, described patrix and counterdie are provided with fixing hole, and described fixing hole is connected with the fixing patrix of steady pin and counterdie.
As preferably, described locking device is bolt or screw.
As preferably, described groove is provided with the shrinkage pool coordinating with the nut of bolt or screw.
As preferably, also comprise the die lifter that coordinates die cavity molding.
In sum, the present invention has following beneficial effect:
Use chain wheel for chain saw injecting molding die to produce chain wheel for chain saw, enterprise can produce in enormous quantities, has improved production efficiency; Technical requirement to operative employee is low; Can reduce the production cost of enterprise; Guiding internal gas is discharged, and the parts precision of moulding is also high.
Brief description of the drawings
Fig. 1 is the structural representation of counterdie in the present invention;
Fig. 2 is the structural representation of patrix in the present invention;
Fig. 3 is the structural representation of steady pin in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As Figure 1-3, chain wheel for chain saw injecting molding die, comprises patrix 3 and counterdie 2, and patrix 3 all has 7, two moulds of fixing hole with counterdie 2 and combines, and inserts fixing hole 7 be connected and fixed by steady pin 8.In order to guide die cavity internal gas to discharge, around die cavity 1, be provided with 7 stator blades 6, stator blade 6 is T-shape, its end is arc; On stator blade 6, have air guide channel 63; Stator blade 6 slides by the chute 61 on stator blade 6 and being engaged on patrix 3 of locking device 62, and locking device 62 is bolts.Counterdie 2 is provided with the groove 21 coordinating with stator blade 6, also has the shrinkage pool 211 coordinating with bolt upper cap nut on groove 21.Liquid is expelled to die cavity 1, inside moulding by the nozzle of injector through cast gate 5 and injection canal 4.Finally by die lifter 9, parts are tripped out.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art are reading after this description and can make to the present embodiment the amendment that there is no creative contribution as required, but as long as within the scope of claim of the present invention, are all subject to the protection of Patent Law.
Claims (3)
1. a chain wheel for chain saw injecting molding die, comprise the patrix (3) and the counterdie (2) that are provided with die cavity (1), described die cavity (1) is connected with injection runner (4) and cast gate (5), it is characterized in that: the surrounding of described die cavity (1) is provided with the stator blade (6) with chute (61), described stator blade (6) is T-shape, and its end is arc; On described stator blade (6), have air guide channel (63); Described stator blade (6) above slides by chute (61) and the patrix (3) that is engaged in of locking device (62); Described counterdie (2) is provided with the groove (21) coordinating with stator blade (6);
Described patrix (3) is provided with fixing hole (7) with counterdie (2), and described fixing hole (7) is connected with the fixing patrix (3) of steady pin (8) and counterdie (2);
Described locking device (62) is bolt or screw.
2. a kind of chain wheel for chain saw injecting molding die according to claim 1, is characterized in that: described groove (21) is provided with the shrinkage pool (211) coordinating with the nut of bolt or screw.
3. a kind of chain wheel for chain saw injecting molding die according to claim 1 and 2, is characterized in that: also comprise the die lifter (9) that coordinates die cavity (1) molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479722.0A CN102921920B (en) | 2012-11-23 | 2012-11-23 | Injection molding mold for chain wheel of chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479722.0A CN102921920B (en) | 2012-11-23 | 2012-11-23 | Injection molding mold for chain wheel of chain saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102921920A CN102921920A (en) | 2013-02-13 |
| CN102921920B true CN102921920B (en) | 2014-08-06 |
Family
ID=47636925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210479722.0A Expired - Fee Related CN102921920B (en) | 2012-11-23 | 2012-11-23 | Injection molding mold for chain wheel of chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102921920B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0561478A1 (en) * | 1992-03-20 | 1993-09-22 | MCC Nederland B.V. | Divisible sprocket wheel |
| US6238194B1 (en) * | 1997-12-03 | 2001-05-29 | Bridgestone Sports Co., Ltd. | Golf ball injection molds |
| CN1974115A (en) * | 2006-12-05 | 2007-06-06 | 杨高明 | Manufacturing process of chain wheel for chain saw |
| CN101422953A (en) * | 2007-10-31 | 2009-05-06 | 鸿富锦精密工业（深圳）有限公司 | Injecting molding die |
| CN201432080Y (en) * | 2009-07-13 | 2010-03-31 | 齐齐哈尔轨道交通装备有限责任公司 | Casting device |
| CN201566100U (en) * | 2009-07-30 | 2010-09-01 | 脇山高志 | Exhaust push rod for ejection to shape |
| CN102390705A (en) * | 2011-06-12 | 2012-03-28 | 江苏维达机械有限公司 | Exhaust push rod |
| CN202293224U (en) * | 2011-09-26 | 2012-07-04 | 芜湖众力部件有限公司 | Injection mould with air exhausting function |
| CN202861367U (en) * | 2012-11-23 | 2013-04-10 | 安吉德康精密铸件有限公司 | Chain saw chain wheel injection molding die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0459215A (en) * | 1990-06-27 | 1992-02-26 | Fujitsu Ltd | Molding tool |
-
2012
- 2012-11-23 CN CN201210479722.0A patent/CN102921920B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0561478A1 (en) * | 1992-03-20 | 1993-09-22 | MCC Nederland B.V. | Divisible sprocket wheel |
| US6238194B1 (en) * | 1997-12-03 | 2001-05-29 | Bridgestone Sports Co., Ltd. | Golf ball injection molds |
| CN1974115A (en) * | 2006-12-05 | 2007-06-06 | 杨高明 | Manufacturing process of chain wheel for chain saw |
| CN101422953A (en) * | 2007-10-31 | 2009-05-06 | 鸿富锦精密工业（深圳）有限公司 | Injecting molding die |
| CN201432080Y (en) * | 2009-07-13 | 2010-03-31 | 齐齐哈尔轨道交通装备有限责任公司 | Casting device |
| CN201566100U (en) * | 2009-07-30 | 2010-09-01 | 脇山高志 | Exhaust push rod for ejection to shape |
| CN102390705A (en) * | 2011-06-12 | 2012-03-28 | 江苏维达机械有限公司 | Exhaust push rod |
| CN202293224U (en) * | 2011-09-26 | 2012-07-04 | 芜湖众力部件有限公司 | Injection mould with air exhausting function |
| CN202861367U (en) * | 2012-11-23 | 2013-04-10 | 安吉德康精密铸件有限公司 | Chain saw chain wheel injection molding die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102921920A (en) | 2013-02-13 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20181123 |