CN107309352A - A kind of anti abrasive die ejector pin - Google Patents
A kind of anti abrasive die ejector pin Download PDFInfo
- Publication number
- CN107309352A CN107309352A CN201710560894.3A CN201710560894A CN107309352A CN 107309352 A CN107309352 A CN 107309352A CN 201710560894 A CN201710560894 A CN 201710560894A CN 107309352 A CN107309352 A CN 107309352A
- Authority
- CN
- China
- Prior art keywords
- tip bar
- ejector pin
- die ejector
- groove
- penetrating
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of anti abrasive die ejector pin, including：Penetrate tip bar and penetrate tip bar base, the tip bar floor installation of penetrating penetrates tip bar bottom described；The tip bar top of penetrating is provided with round boss, and the round boss is provided with a circle bevel edge；The tip bar side wall of penetrating uniformly is provided with some fixing devices in the groove, is provided between the fixing device and the groove inner wall in spring, the fixing device and is provided with pulley, the pulley exposes the groove surfaces provided with some grooves.By the above-mentioned means, a kind of anti abrasive die ejector pin of the present invention, the die ejector pin can reduce the friction with the inwall of pilot hole, the abrasion of the inwall of pilot hole is reduced, so as to increase the service life of thimble.
Description
Technical field
The present invention relates to mould applications, and in particular to a kind of anti abrasive die ejector pin.
Background technology
Die ejector pin is the product for being molded in ejection die, and traditional mould die ejector pin is by cylindrical thimble
Bar, is constituted, the cylindrical thimble countersunk head is located at cylindrical, top shank with the cylindrical thimble countersunk head of cylindrical, top shank one
One end, and cylindrical thimble is the equal cylinder of an external diameter, the die ejector pin of this structure installs mould top in a mold
In needle guide hole, when needing ejection moulded products, the thimble rod of mould die ejector pin stretches out out of pilot hole, fills moulded products
Ejection, therefore there is following defect in the die ejector pin of this structure, whole thimble rod is in contact with being oriented to internal surface of hole, in thimble
When bar is moved back and forth, rubbed with being oriented to internal surface of hole, so as to cause thimble rod outer surface mill flower, become thimble outer surface
It is coarse, and make thimble rod surface wear, the service life of mould die ejector pin is substantially reduced, and because thimble rod is with being oriented to
The contact area of internal surface of hole is big, it is necessary to could be ejected the product of shaping with larger thrust, inconvenient for use.
The content of the invention
The present invention solves the technical problem of a kind of anti abrasive die ejector pin is provided, it can prevent thimble from wearing and tearing.
In order to solve the above technical problems, one aspect of the present invention is：A kind of anti abrasive die ejector pin, bag
Include：Penetrate tip bar and penetrate tip bar base, the tip bar floor installation of penetrating penetrates tip bar bottom described；
The tip bar top of penetrating is provided with round boss, and the round boss is provided with a circle bevel edge；
The tip bar side wall of penetrating uniformly is provided with some fixing devices, the fixation provided with some grooves in the groove
It is provided between device and the groove inner wall in spring, the fixing device and pulley is installed, the pulley exposes described recessed
Rooved face.
In a preferred embodiment of the present invention, the quantity of the groove has four.
In a preferred embodiment of the present invention, the pulley exposes the length of the groove surfaces more than or equal to the circle
Shape boss radius and the semidiameter for penetrating tip bar radius.
The beneficial effects of the invention are as follows：A kind of anti abrasive die ejector pin of the present invention, the die ejector pin can be reduced and led
To the friction of the inwall in hole, the abrasion of the inwall of pilot hole is reduced, so as to increase the service life of thimble.
Brief description of the drawings
Fig. 1 is a kind of structural representation of anti abrasive die ejector pin of the present invention.
The mark of each part is as follows in accompanying drawing：1st, tip bar is penetrated；2nd, tip bar base is penetrated；3rd, round boss；4th, bevel edge；5th, it is recessed
Groove；6th, fixing device；7th, pulley；8th, spring.
Embodiment
Referring to Fig. 1, the embodiment of the present invention includes：A kind of anti abrasive die ejector pin, including：Penetrate tip bar 1 and penetrate tip bar
Base 2, the tip bar base 2 of penetrating penetrates the bottom of tip bar 1 installed in described.
The top of tip bar 1 of penetrating is provided with round boss 3, the round boss 3 provided with a circle bevel edge 4, it is described fall
The arm of angle 4 penetrates more smooth when tip bar 1 enters in pilot hole described in causing.
The side wall of tip bar 1 of penetrating is provided with some grooves 5, and the groove 5 is used to install the fixing device 6, this implementation
In example, the quantity of the groove 5 has four.
Some fixing devices 6 are uniformly installed, the fixing device 6 is used to install the pulley 7 in the groove 5.
Spring 8 is installed, the spring 8 causes the pulley 7 to begin between the fixing device 6 and the inwall of the groove 5
Pilot hole inwall can be close to eventually.
Pulley 7 is installed, the pulley 7 reduces the contact area with the inwall of pilot hole in the fixing device 6, so that
Reduce friction.
The pulley 7 exposes the surface of groove 5, and the length that the pulley 7 exposes the surface of groove 5 is more than or equal to institute
State the radius of round boss 3 and the semidiameter for penetrating the radius of tip bar 1 so that the pulley 7 is close to pilot hole inwall all the time, keeps away
Exempt from the flank wear of the round boss.
Compared with prior art, a kind of anti abrasive die ejector pin of the present invention, the die ejector pin can be reduced and pilot hole
Inwall friction, reduce pilot hole inwall abrasion, so as to increase the service life of thimble.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of anti abrasive die ejector pin, it is characterised in that including：Penetrate tip bar and penetrate tip bar base, it is described to penetrate tip bar base
Tip bar bottom is penetrated installed in described；
The tip bar top of penetrating is provided with round boss, and the round boss is provided with a circle bevel edge；
The tip bar side wall of penetrating uniformly is provided with some fixing devices, the fixation provided with some grooves in the groove
It is provided between device and the groove inner wall in spring, the fixing device and pulley is installed, the pulley exposes described recessed
Rooved face.
2. a kind of anti abrasive die ejector pin according to claim 1, it is characterised in that：The quantity of the groove has four
Bar.
3. a kind of anti abrasive die ejector pin according to claim 1, it is characterised in that：The pulley exposes the groove
The length on surface is more than or equal to the round boss radius and the semidiameter for penetrating tip bar radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710560894.3A CN107309352A (en) | 2017-07-11 | 2017-07-11 | A kind of anti abrasive die ejector pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710560894.3A CN107309352A (en) | 2017-07-11 | 2017-07-11 | A kind of anti abrasive die ejector pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107309352A true CN107309352A (en) | 2017-11-03 |
Family
ID=60177752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710560894.3A Pending CN107309352A (en) | 2017-07-11 | 2017-07-11 | A kind of anti abrasive die ejector pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107309352A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042555A (en) * | 2002-07-15 | 2004-02-12 | Punch Industry Co Ltd | Resin molding pin and its production method |
| CN103465412A (en) * | 2013-09-17 | 2013-12-25 | 苏州益群模具有限公司 | Shoulder ejector pin |
| CN103465413A (en) * | 2013-09-17 | 2013-12-25 | 苏州益群模具有限公司 | Single-section eject pin |
| KR101472214B1 (en) * | 2013-07-26 | 2014-12-11 | 주식회사 니프코코리아 | The load rod of injection molding machine |
| CN204052689U (en) * | 2014-07-31 | 2014-12-31 | 常州苏丞不锈钢有限公司 | Stamping die metal thimble |
| CN204160713U (en) * | 2014-08-30 | 2015-02-18 | 马雷 | A kind of die ejector pin |
| CN104400939A (en) * | 2014-10-31 | 2015-03-11 | 苏州广型模具有限公司 | Mold ejector pin |
| CN104668349A (en) * | 2013-11-28 | 2015-06-03 | 刘肖 | Bending die for reducing wearing of propping device and bent concave die |
| CN205394930U (en) * | 2016-02-25 | 2016-07-27 | 昆山铭广精密模具有限公司 | Thimble of high precision |
| CN206154574U (en) * | 2016-09-30 | 2017-05-10 | 东莞港星金属制品有限公司 | Mould with oblique novel mechanism |
-
2017
- 2017-07-11 CN CN201710560894.3A patent/CN107309352A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004042555A (en) * | 2002-07-15 | 2004-02-12 | Punch Industry Co Ltd | Resin molding pin and its production method |
| KR101472214B1 (en) * | 2013-07-26 | 2014-12-11 | 주식회사 니프코코리아 | The load rod of injection molding machine |
| CN103465412A (en) * | 2013-09-17 | 2013-12-25 | 苏州益群模具有限公司 | Shoulder ejector pin |
| CN103465413A (en) * | 2013-09-17 | 2013-12-25 | 苏州益群模具有限公司 | Single-section eject pin |
| CN104668349A (en) * | 2013-11-28 | 2015-06-03 | 刘肖 | Bending die for reducing wearing of propping device and bent concave die |
| CN204052689U (en) * | 2014-07-31 | 2014-12-31 | 常州苏丞不锈钢有限公司 | Stamping die metal thimble |
| CN204160713U (en) * | 2014-08-30 | 2015-02-18 | 马雷 | A kind of die ejector pin |
| CN104400939A (en) * | 2014-10-31 | 2015-03-11 | 苏州广型模具有限公司 | Mold ejector pin |
| CN205394930U (en) * | 2016-02-25 | 2016-07-27 | 昆山铭广精密模具有限公司 | Thimble of high precision |
| CN206154574U (en) * | 2016-09-30 | 2017-05-10 | 东莞港星金属制品有限公司 | Mould with oblique novel mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |