CN203994822U - A kind of low degree of eccentricity propellant spiral shell molding die - Google Patents

A kind of low degree of eccentricity propellant spiral shell molding die Download PDF

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Publication number
CN203994822U
CN203994822U CN201420472075.5U CN201420472075U CN203994822U CN 203994822 U CN203994822 U CN 203994822U CN 201420472075 U CN201420472075 U CN 201420472075U CN 203994822 U CN203994822 U CN 203994822U
Authority
CN
China
Prior art keywords
eccentricity
copper sheathing
mould pin
propellant
spiral shell
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
Application number
CN201420472075.5U
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Chinese (zh)
Inventor
左英英
李万辉
屈满意
张恒志
张斌
许肖
乔锦慧
王耀斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANXI BEIFANG XING'AN CHEMICAL INDUSTRY Co Ltd
Original Assignee
SHANXI BEIFANG XING'AN CHEMICAL INDUSTRY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANXI BEIFANG XING'AN CHEMICAL INDUSTRY Co Ltd filed Critical SHANXI BEIFANG XING'AN CHEMICAL INDUSTRY Co Ltd
Priority to CN201420472075.5U priority Critical patent/CN203994822U/en
Application granted granted Critical
Publication of CN203994822U publication Critical patent/CN203994822U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of low degree of eccentricity propellant spiral shell molding die, belongs to Design of Dies field.Mould of the present utility model, comprises precentrum, posterior pyramids, punch block, moulding steel bushing, copper sheathing, mould pin.The upper end of mould pin is arranged on the moulding steel bushing of copper sheathing upper end by punch block, the lower end of mould pin extends in the tapping channel of copper sheathing always.Mould pin and copper sheathing axiality are not more than 0.1mm.Mould of the present utility model passes through to shorten mould pin length, thereby has reduced eccentric moment, and the product degree of eccentricity is reduced to 0.05mm, has met the needs of the product degree of eccentricity, has significantly reduced production cost.

Description

A kind of low degree of eccentricity propellant spiral shell molding die
Technical field
The utility model relates to a kind of low degree of eccentricity propellant spiral shell molding die, belongs to Design of Dies field.
Background technology
Along with the progress of technology, propellant size has been proposed to stricter requirement.Existing spiral shell molding die structure as shown in Figure 1, conventional art thinks that mould pin length is longer, its spiral shell presses guide effect better, therefore conventionally the upper end of mould pin is arranged between precentrum and posterior pyramids by punch block, and the lower end of mould pin extends in the tapping channel of copper sheathing always.But in actual use, find that the mould pin of longer stroke can be subject to larger eccentric moment, produce the molded propellant degree of eccentricity of spiral shell higher, be difficult to meet the requirement of propellant to size.
Utility model content
The purpose of this utility model is higher in order to solve the propellant degree of eccentricity of traditional spiral shell molding die pressure stretch, is difficult to meet the requirement of propellant to size, and a kind of low degree of eccentricity propellant spiral shell molding die is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of low degree of eccentricity propellant spiral shell molding die of the present utility model, comprises precentrum, posterior pyramids, punch block, moulding steel bushing, copper sheathing, mould pin.The upper end of mould pin is arranged on the moulding steel bushing of copper sheathing upper end by punch block, the lower end of mould pin extends in the tapping channel of copper sheathing always.Mould pin and copper sheathing axiality are not more than 0.1mm.
Beneficial effect
Mould of the present utility model passes through to shorten mould pin length, thereby has reduced eccentric moment, and the product degree of eccentricity is reduced to 0.05mm, has met the needs of the product degree of eccentricity, has significantly reduced production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional spiral shell molding die;
Fig. 2 is the structural representation of the utility model spiral shell molding die;
Wherein, 1-precentrum; The punch block of 2-traditional structure; 3-posterior pyramids; 4-moulding steel bushing; 5-copper sheathing; The mould pin of 6-traditional structure; 12-punch block; 16-mould pin.
The specific embodiment
Below in conjunction with drawings and Examples, content of the present utility model is described further.
Embodiment
A kind of low degree of eccentricity propellant spiral shell molding die of the present utility model, as shown in Figure 2, comprises precentrum 1, posterior pyramids 3, punch block 12, moulding steel bushing 4, copper sheathing 5, mould pin 16; The upper end of mould pin 16 is arranged on the moulding steel bushing 4 of copper sheathing 5 upper ends by punch block 12, the lower end of mould pin 16 extends in the tapping channel of copper sheathing 5 always.Mould pin and copper sheathing axiality are not more than 0.1mm.
Adopt two cobalt-1 propellant test specimen of 200 moulding of mould test of the present utility model, the maximum 0.05mm of the degree of eccentricity, average 0.03mm (adopting two cobalt-1 propellant test specimen degree of eccentricity average out to 0.4mm of traditional spiral shell compression mould moulding).

Claims (2)

1. a low degree of eccentricity propellant spiral shell molding die, comprises precentrum, posterior pyramids, punch block, moulding steel bushing, copper sheathing, mould pin; It is characterized in that: the upper end of mould pin is arranged on the moulding steel bushing of copper sheathing upper end by punch block, the lower end of mould pin extends in the tapping channel of copper sheathing always.
2. a kind of low degree of eccentricity propellant spiral shell molding die as claimed in claim 1, is characterized in that: mould pin and copper sheathing axiality are not more than 0.1mm.
CN201420472075.5U 2014-08-21 2014-08-21 A kind of low degree of eccentricity propellant spiral shell molding die Expired - Fee Related CN203994822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420472075.5U CN203994822U (en) 2014-08-21 2014-08-21 A kind of low degree of eccentricity propellant spiral shell molding die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420472075.5U CN203994822U (en) 2014-08-21 2014-08-21 A kind of low degree of eccentricity propellant spiral shell molding die

Publications (1)

Publication Number Publication Date
CN203994822U true CN203994822U (en) 2014-12-10

Family

ID=52034880

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420472075.5U Expired - Fee Related CN203994822U (en) 2014-08-21 2014-08-21 A kind of low degree of eccentricity propellant spiral shell molding die

Country Status (1)

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CN (1) CN203994822U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107351442A (en) * 2016-06-08 2017-11-17 王振宇 A kind of novel extrusion mould
CN109081762A (en) * 2017-12-13 2018-12-25 北京航空航天大学 A kind of three-stage spiral shell pressing molding device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107351442A (en) * 2016-06-08 2017-11-17 王振宇 A kind of novel extrusion mould
CN107351442B (en) * 2016-06-08 2019-01-08 深圳市中拓模塑科技有限公司 A kind of novel extrusion mould
CN109081762A (en) * 2017-12-13 2018-12-25 北京航空航天大学 A kind of three-stage spiral shell pressing molding device
CN109081762B (en) * 2017-12-13 2020-07-14 北京航空航天大学 Three-section type screw press forming device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20160821

CF01 Termination of patent right due to non-payment of annual fee