CN101947838A - Stripping device with break-proof angle pin - Google Patents
Stripping device with break-proof angle pin Download PDFInfo
- Publication number
- CN101947838A CN101947838A CN2010102766835A CN201010276683A CN101947838A CN 101947838 A CN101947838 A CN 101947838A CN 2010102766835 A CN2010102766835 A CN 2010102766835A CN 201010276683 A CN201010276683 A CN 201010276683A CN 101947838 A CN101947838 A CN 101947838A
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- Prior art keywords
- taper pin
- angle pin
- hole
- rolling
- pin
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Abstract
The invention relates to a stripping device with a break-proof angle pin, which comprises a moving die cavity arranged on a moving die and provided with an angle pin through hole. The stripping device with the break-proof angle pin is characterized in that a block-type angle pin is mounted in the angle pin through hole; a block-type locating surface at the upper end of the angle pin is matched with the upper end face of the angle pin through hole highly precisely; two side faces in the middle of the angle pin are provided with rolling channels; a rolling member set which achieves rolling friction with two side faces corresponding to the angle pin through hole is arranged in the rolling channels; the lower end of the angle pin is provided with a transverse chute which is connected with the upper end of a longitudinal pushing rod; a flange at the lower end of the longitudinal pushing rod is mounted on a longitudinal pushing rod fixing plate with a staircase round hole; the longitudinal pushing rod fixing plate is fixed with a push plate by a bolt; and the angle pin aslant slides in the angle pin through hole under the action of the push plate and the longitudinal pushing rod and carries out transverse core-loosing stripping while pushing out a finished product. According to the invention, the blockage and the break of the angle pin can be effectively prevented, and the service life of the angle pin is prolonged so that the stripping device works more reliably.
Description
Technical field
The present invention relates to a kind of anti-breaking taper pin stripper apparatus that has, be applicable in the plastic product mould, be applied to especially in the injection mold that the moulding product have barb, groove or bulge-structure.
Background technology
In the plastic product mould,, all adopt plane formula slip taper pin mode to realize that the demoulding ejects for the overhead kick and the inner groovy on product dynamic model surface.Taper pin is taked the square pattern in the known technology, moves up and down with the ejector retainner plate push-and-pull, and taper pin is done to slide mutually with the planar slide friction mode in die taper pin through hole.Because high accuracy cooperates between taper pin and die taper pin through hole, when taper pin moves up and down in the planar friction mode, stressed working face A1, A2 face are easy to wear, still be difficult for killing behind the expanded by heating blocking, the working face and B1, B2 face do not stress contacts with whole of die taper pin through hole, Gao Jing Du Tight close fit all the time, easily causes the scratch projection behind the expanded by heating in mutual sliding process, cause to kill and block, taper pin is often broken.Therefore, are research purposes of the present invention at the problems referred to above.
Summary of the invention
The object of the present invention is to provide a kind of taper pin of avoiding effectively to be broken, and prolong the stripper apparatus with anti-breaking taper pin in taper pin life-span.
The invention is characterized in: a kind of stripper apparatus with anti-breaking taper pin, comprise the dynamic model die that is placed on the dynamic model and has the taper pin through hole, it is characterized in that: the taper pin that the square pattern is installed in the described taper pin through hole, the locating surface of taper pin upper end square pattern cooperates with taper pin through hole upper surface high accuracy, two sides, taper pin middle part are provided with the rolling conduit, be mounted with corresponding two sides in the described rolling conduit and realize the rolling member group of rolling friction with the taper pin through hole, the taper pin lower end is provided with horizontal concrete chute, described horizontal concrete chute is connected with the upper end of vertical push rod, the flange of described vertical push rod lower end is installed on the vertical ejector pin retaining plate with ladder circular hole, described vertical ejector pin retaining plate is fixed by bolt and push pedal, described taper pin is in oblique slip in the taper pin through hole under the effect of push pedal and vertical push rod, and also does the demoulding of laterally loosing core when ejecting manufactured goods.
Advantage of the present invention: the present invention can prevent effectively that stuck fracture from appearring in taper pin, and prolongs the service life of taper pin, makes that this stripper apparatus work is more reliable.
Description of drawings
Mould and inclined pin structure group structural representation when Fig. 1 is embodiment of the invention matched moulds.
Fig. 2 (a) is an embodiment of the invention roller taper pin monomer structure front view.
Fig. 2 (b) contains the roller taper pin monomer structure right side view of M-M part sectioned view for the embodiment of the invention.
Fig. 2 (c) is that the E of Fig. 2 (b) is to partial enlarged view.
Fig. 2 (d) is that the N-N of Fig. 2 (a) is to the side top plan view.
Fig. 2 (e) is that the D of Fig. 2 (d) is to partial enlarged view.
Fig. 3 is the stereogram of flexure strip 12.
Fig. 4 ejects the schematic diagram one (die sinking ejects starting point) of process for the embodiment of the invention demoulding.
Fig. 5 ejects the schematic diagram two (die sinking ejects terminal point) of process for the embodiment of the invention demoulding.
Fig. 6 is the schematic diagram (taper pin retracts terminal point) of embodiment of the invention inclined pin return process.
Fig. 7 is the schematic diagram (dynamic model return terminal point) of embodiment of the invention matched moulds process.
The specific embodiment
With reference to figure 1, Fig. 2 (a), Fig. 2 (b), Fig. 2 (c), Fig. 2 (d), Fig. 2 (e), Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, a kind of stripper apparatus with anti-breaking taper pin, comprise the dynamic model die 3 that is placed on the dynamic model 1 and has taper pin through hole 2-1, the taper pin 2 of square pattern is installed in the described taper pin through hole 2-1, the locating surface X of taper pin 2 upper end square patterns cooperates with taper pin through hole 2-1 upper surface Y high accuracy, taper pin 2 middle part two sides B1 and B2 are provided with rolling conduit 5, be mounted with corresponding two sides in the described rolling conduit 5 and realize the rolling member group 4 of rolling friction with taper pin through hole 2-1, taper pin 2 lower ends are provided with horizontal concrete chute 6, described horizontal concrete chute 6 is connected with the upper end of vertical push rod 7, the flange 7-1 of described vertical push rod 7 lower ends is installed on the vertical ejector pin retaining plate 8 with ladder circular hole 7-2, described vertical ejector pin retaining plate 8 is fixing with push pedal 10 by bolt 9, and described taper pin 2 is in oblique slip in taper pin through hole 2-1 under the effect of push pedal 10 and vertical push rod 7, and also does the demoulding of laterally loosing core when ejecting manufactured goods 11.
Above-mentioned rolling channel lengths should be set at the taper pin slip length half add the length overall sum of rolling member group, and taper pin is when ejecting, taper pin moves 1mm on whenever in die taper pin through hole, the rolling member group is moved 0.5mm in the die taper pin through hole; When taper pin retracts, taper pin whenever retracts 1mm in die taper pin through hole, then the rolling member group is with respect to retracting 0.5mm in the die taper pin through hole, thus when vertical push rod 7 promotes taper pins 2 and ejects to summit when the injection moulding demoulding, rolling member group 4 also roll displacement to the lowermost end of taper pin rolling conduit 5; When vertical push rod 7 pulling taper pins 2 were back to minimum point when return, rolling member group 4 also roll displacement was back to the top of taper pin rolling conduit 5.
With offer shell fragment chute 5-1 on rolling conduit 5 two sides of rolling member group 4 axis normal, be mounted with on the described shell fragment chute 5-1 and can offer on the described flexure strip 12 and the rolling member group 4 corresponding port 12-1 that live rolling member in order to frame along the flexure strip 12 of shell fragment chute 5-1 slippage.
The two sides at above-mentioned taper pin middle part can be stressed working face A1 and A2, also can be non-stress working face B1 and B2.
Above-mentioned rolling member group 4 can be roller or ball, owing between taper pin and taper pin through hole, separate with rolling roller or ball set, forms the line transmission of heat by contact, reduces the effect of expanding with heat and contract with cold that taper pin and taper pin through hole are formed because of the face transmission of heat by contact greatly.
It is the rolling member group that present embodiment adopts roller, and when injection mo(u)lding, described push pedal 10 is supported by the Bottom clamp plate 1 of dynamic model; Push pedal 10 moves down after a section moves jointly with dynamic model fixed head 13 and Bottom clamp plate 1 when the demoulding, and injection machine push rod 14 upwards ejects motion, and promotes push pedal 10 and taper pin 2 and move upward and eject goods; And when return, described injection machine push rod 14 retracts downwards, drives push pedal 10 and taper pin 2 equidirectional down motions, when push pedal 10 with after dynamic mould fixing plate 13 contacts, taper pin 2 is back to and retracts terminal point.
The present invention utilizes rolling member not only to do rolling but also can be shifted in conduit, has effectively reduced present taper pin in many defectives that the slippage of demoulding campaign midplane produces, and has prolonged the service life of taper pin, is that effect is remarkable.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (7)
1. stripper apparatus with anti-breaking taper pin, comprise the dynamic model die that is placed on the dynamic model and has the taper pin through hole, it is characterized in that: the taper pin that the square pattern is installed in the described taper pin through hole, the locating surface of taper pin upper end square pattern cooperates with taper pin through hole upper surface high accuracy, two sides, taper pin middle part are provided with the rolling conduit, be mounted with corresponding two sides in the described rolling conduit and realize the rolling member group of rolling friction with the taper pin through hole, the taper pin lower end is provided with horizontal concrete chute, described horizontal concrete chute is connected with the upper end of vertical push rod, the flange of described vertical push rod lower end is installed on the vertical ejector pin retaining plate with ladder circular hole, described vertical ejector pin retaining plate is fixed by bolt and push pedal, described taper pin is in oblique slip in the taper pin through hole under the effect of push pedal and vertical push rod, and also does the demoulding of laterally loosing core when ejecting manufactured goods.
2. the stripper apparatus with anti-breaking taper pin according to claim 1 is characterized in that: described rolling channel lengths should be set at the taper pin slip length half add the length overall sum of rolling member group.
3. the stripper apparatus with anti-breaking taper pin according to claim 1, it is characterized in that: with offer the shell fragment chute on the rolling conduit two side of rolling member axis normal, be mounted with on the described shell fragment chute and can offer on the described flexure strip and the corresponding port of living rolling member in order to frame of rolling member group along the flexure strip of shell fragment chute slippage.
4. the stripper apparatus with anti-breaking taper pin according to claim 1 is characterized in that: the two sides at described taper pin middle part can be stressed working face, also can be the non-stress working face.
5. according to claim 1 or 3 described stripper apparatus with anti-breaking taper pin, it is characterized in that: described rolling member can be roller or ball.
6. the stripper apparatus with anti-breaking taper pin according to claim 1 is characterized in that: when injection mo(u)lding, described push pedal is supported by the Bottom clamp plate of dynamic model; Described push pedal moves down after a section moves jointly with dynamic model fixed head and Bottom clamp plate when die sinking, and the injection machine push rod moves upward, and promotes push pedal and taper pin and move upward and eject goods; And when return, described injection machine push rod retracts downwards, drives the equidirectional down motion of push pedal and taper pin, when push pedal with after dynamic mould fixing plate contacts, taper pin is back to and retracts terminal point.
7. the stripper apparatus with anti-breaking taper pin according to claim 1 is characterized in that: when vertical push rod promotes taper pin and ejects to summit when injection mo(u)lding, the rolling member group also roll displacement to the lowermost end of taper pin middle part two sides rolling conduit; When vertical push rod pulling taper pin was back to minimum point when return, rolling member group also roll displacement was back to the top of taper pin middle part two sides rolling conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010276683.5A CN101947838B (en) | 2010-09-09 | 2010-09-09 | Stripping device with break-proof angle pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010276683.5A CN101947838B (en) | 2010-09-09 | 2010-09-09 | Stripping device with break-proof angle pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101947838A true CN101947838A (en) | 2011-01-19 |
| CN101947838B CN101947838B (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010276683.5A Expired - Fee Related CN101947838B (en) | 2010-09-09 | 2010-09-09 | Stripping device with break-proof angle pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101947838B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120262A (en) * | 2000-10-16 | 2002-04-23 | Nissan Motor Co Ltd | Injection mold |
| CN201427372Y (en) * | 2009-05-14 | 2010-03-24 | 嘉兴信元精密模具科技有限公司 | Obliquely-ejecting structure of die |
-
2010
- 2010-09-09 CN CN201010276683.5A patent/CN101947838B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120262A (en) * | 2000-10-16 | 2002-04-23 | Nissan Motor Co Ltd | Injection mold |
| CN201427372Y (en) * | 2009-05-14 | 2010-03-24 | 嘉兴信元精密模具科技有限公司 | Obliquely-ejecting structure of die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101947838B (en) | 2014-10-15 |
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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 |
Granted publication date: 20141015 Termination date: 20150909 |
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| EXPY | Termination of patent right or utility model |