CN107630883A - The injection alignment pin of stable connection - Google Patents
The injection alignment pin of stable connection Download PDFInfo
- Publication number
- CN107630883A CN107630883A CN201610574225.7A CN201610574225A CN107630883A CN 107630883 A CN107630883 A CN 107630883A CN 201610574225 A CN201610574225 A CN 201610574225A CN 107630883 A CN107630883 A CN 107630883A
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- China
- Prior art keywords
- connection
- positioning
- ring
- plunger
- alignment pin
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- 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.)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of injection alignment pin of stable connection, the alignment pin includes positioning and guiding bar, connection plunger, the trapezoidal annular groove of connection, perfusion sets of vias and back-up ring, the positioning and guiding bar is cylindrical, coaxial spaced is parallel on the positioning and guiding bar is formed with connection plunger and back-up ring, horizontal one end of the positioning and guiding bar is formed with connection plunger, and the trapezoidal annular groove of connection is formed with the positioning and guiding bar between the connection plunger and back-up ring.This alignment pin improves the frictional force between connection plunger and back-up ring and finished plastic, enhance connectivity robustness therebetween, and then the connectivity robustness of alignment pin and plastic mould is improved, during long-term use, alignment pin will not also come off from plastics easily, it ensure that its positioning action to plastic mould, the service life of plastic mould is extended, has saved the waste of resource, while also ensure that the lasting progress of work, operating efficiency is improved, also a saving production cost.
Description
Technical field
The invention belongs to fastening connection piece technical field, is related to alignment pin, and the injection of especially a kind of stable connection, which is used, to be determined
Position pin.
Background technology
At present, the requirement of the precision of plastic mould is all especially high, in process of production, if only carrying out stent by bolt
Required precision is typically not achieved if plate, therefore is typically necessary by alignment pin to reach the purpose of positioning, or is prevented
Installation site, the mistake in direction etc..Especially by the plastic mould that forms of two parts or more part, to make mould adjacent two
Part, which is accurately positioned, often uses alignment pin.
But current alignment pin is when being moulded in plastic mould, after mould molding, due to alignment pin and the modern designs of plastics
The connection of tool is not that especially firmly, during long-term use, alignment pin is easily come off from plastics so as to lose to modeling
Expect the positioning action of mould, cause can not using for plastic mould, plastic mould need to be abandoned, in turn resulted in the wave of resource
Take, while cannot guarantee that the lasting progress of work, reduce operating efficiency.
By retrieval, the following several patent publication us related to present patent application are found：
1st, anti-dropout alignment pin (CN202612317U), it includes body, and body is provided with circumferentially disposed outer of ring body
The resilient ridge of prominent body.Using the technical scheme, after alignment pin enters pin-and-hole, returned by the moment of resilient ridge
Bullet, make alignment pin and pin-and-hole wall pressure tight, ensure that and be reliably connected and position between two parts, and utilize the difference of each part external diameter
It is different to prevent alignment pin from coming off.Its simple in construction, handling ease.
2nd, the nylon protection head anti-drop device (CN203641242U) of alignment pin, including alignment pin, in nylon protection head
After being arranged resilient sleeve, it is arranged in the mounting hole of alignment pin top first, it is characterized in that：The resilient sleeve bottom is sequentially formed with
Step and guiding circular cone, the resilient sleeve surface offers bar-shaped trough；Opened on the alignment pin corresponding to the first mounting hole bottom
Provided with the second mounting hole, the second mounting hole is coaxially disposed with the first mounting hole, and the diameter of the second mounting hole is more than the first installation
The diameter in hole, the junction of first mounting hole and the second mounting hole form shoulder, and the step of resilient sleeve is resisted against on shoulder,
Nylon protection head bottom has projection, and resilient sleeve lower surface is resisted against in the projection.Can effectively it be prevented using the device
Resilient sleeve comes off from alignment pin endoporus, and is avoided that nylon protection head comes off out of resilient sleeve.
By contrast, there is the difference of essence with above-mentioned patent publication us in present patent application.
The content of the invention
It is an object of the invention to overcome the weak point of original technology, there is provided a kind of injection positioning of stable connection
Pin, the alignment pin design science is reasonable, simple in construction, extends the service life of plastic mould, saved resource and use into
This.
The technical proposal for solving the technical problem of the invention is：
A kind of injection alignment pin of stable connection, the alignment pin are trapezoidal including positioning and guiding bar, connection plunger, connection
Annular groove, perfusion sets of vias and back-up ring, the positioning and guiding bar is cylindrical, the parallel company of being formed with of coaxial spaced on the positioning and guiding bar
Pin head and back-up ring, horizontal one end of the positioning and guiding bar are formed with connection plunger, the positioning between the connection plunger and back-up ring
The trapezoidal annular groove of connection is formed with guide rod, one end of the trapezoidal annular groove of the connection extends to the close positioning and guiding bar of connection plunger
On inner surface, the other end of the trapezoidal annular groove of the connection is extended on the inner surface of close connection plunger of back-up ring, the connection ladder
The section of shape annular groove vertically is set in isosceles trapezoid；
Along the circumferential direction uniform interval is formed with multiple axially disposed needle-likes on the end face of back-up ring away from connection plunger
Stop pin, one end of the remote back-up ring of the stop pin is that tip-like is set；Along circle on towards the end face of the connection plunger of back-up ring
Circumferential direction is uniformly spaced the stop pin for being also formed with multiple axially disposed needle-likes, one end of the remote connection plunger of the stop pin
Set for tip-like；
Axially spaced in the positioning and guiding bar to be formed with multiple perfusion sets of vias, the perfusion sets of vias includes multiple edges
The perfusion through hole being radially arranged, the plurality of perfusion through hole are along the circumferential direction arranged in a crossed manner；More preferably, the inwall of the perfusion through hole
Anti-slip veins are formed with surface；
The minimum diameter of the back-up ring is more than the maximum gauge of connection plunger, and the minimum diameter of the connection plunger, which is more than, to be determined
The diameter of position guide rod.
Moreover, the connection plunger is shaped as hexagonal column.
The advantages and positive effects of the present invention are：
1st, this alignment pin is provided with positioning and guiding bar, connection plunger, the trapezoidal annular groove of connection, perfusion through hole and back-up ring, close
Connect and the trapezoidal annular groove of connection be formed with the positioning and guiding bar of plunger, back-up ring, connect and be respectively provided with stop pin on the end face of plunger so that
The alignment pin when being molded liquid plasticses, connect in trapezoidal annular groove, stop between pin also can hydraulically full plastics, when plastics into
For mould finished product when, positioning and guiding bar, connection plunger, the trapezoidal annular groove of connection and back-up ring are connected setting with finished plastic, by
In connecting in trapezoidal annular groove, being also filled with plastics between stop pin, the connectivity robustness between the alignment pin and plastics is increased,
Meanwhile the setting of sets of vias is irrigated, and also causing the alignment pin when being molded liquid plasticses, liquid plasticses are flowed into perfusion through hole,
When plastics turn into mould finished product, due to being also filled with plastics in perfusion through hole, connection plunger and back-up ring are further improved
Frictional force between finished plastic, connectivity robustness therebetween is enhanced, and then improve alignment pin and plastic mould
Connectivity robustness, during long-term use, alignment pin will not also come off from plastics easily, ensure that its to modeling
Expect the positioning action of mould, extend the service life of plastic mould, saved the waste of resource, while also ensure that work
It is lasting to carry out, operating efficiency is improved, also a saving production cost.
2nd, the connection plunger of this alignment pin is shaped as hexagonal column, this kind of structure of the connection plunger so that the positioning
Pin when in use, adds its frictional force between plastic mould finished product, further increases being connected firmly therebetween
Property, further increase the service life of the alignment pin.
Brief description of the drawings
The structure that Fig. 1 is the present invention connects front view；
Fig. 2 is Fig. 1 top view；
The right side that Fig. 3 is Fig. 1 regards enlarged drawing.
Embodiment：
For present disclosure, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate accompanying drawing detailed
It is described as follows.It should be noted that the present embodiment is descriptive, it is not limited, it is impossible to thus limit the guarantor of the present invention
Protect scope.
A kind of injection alignment pin of stable connection, as shown in Figure 1, Figure 2 and Figure 3, the alignment pin include positioning and guiding
Bar 1, connection plunger 7, the trapezoidal annular groove 6 of connection, perfusion sets of vias 2 and back-up ring 5, the positioning and guiding bar is cylindrical, the positioning
On guide rod coaxial spaced it is parallel be formed with connection plunger and back-up ring, horizontal one end of the positioning and guiding bar be formed with connection plunger, institute
State and the trapezoidal annular groove of connection is formed with the positioning and guiding bar between connection plunger and back-up ring, one end of the trapezoidal annular groove of the connection extends to
On the inner surface for connecting the close positioning and guiding bar of plunger, the other end of the trapezoidal annular groove of the connection extends to the close connection of back-up ring
On the inner surface of plunger, the section of the trapezoidal annular groove of connection vertically is set in isosceles trapezoid；
Along the circumferential direction uniform interval is formed with multiple axially disposed needle-likes on the end face of back-up ring away from connection plunger
Stop pin 4, one end of the remote back-up ring of the stop pin is that tip-like is set；Along circle on towards the end face of the connection plunger of back-up ring
Circumferential direction is uniformly spaced the stop pin for being also formed with multiple axially disposed needle-likes, one end of the remote connection plunger of the stop pin
Set for tip-like；
Axially spaced in the positioning and guiding bar to be formed with multiple perfusion sets of vias, the perfusion sets of vias includes multiple edges
The perfusion through hole 3 being radially arranged, the plurality of perfusion through hole are along the circumferential direction arranged in a crossed manner；More preferably, the perfusion through hole is interior
Anti-slip veins (not shown) is formed with wall surface；
The minimum diameter of the back-up ring is more than the maximum gauge of connection plunger, and the minimum diameter of the connection plunger, which is more than, to be determined
The diameter of position guide rod.
This alignment pin is provided with positioning and guiding bar, connection plunger, the trapezoidal annular groove of connection, perfusion through hole and back-up ring, close to even
It is formed with the trapezoidal annular groove of connection on the positioning and guiding bar of pin head, back-up ring, connects and be respectively provided with stop pin on the end face of plunger so that should
Alignment pin when being molded liquid plasticses, connect in trapezoidal annular groove, stop between pin also can hydraulically full plastics, when plastics turn into
During mould finished product, positioning and guiding bar, connection plunger, the trapezoidal annular groove of connection and back-up ring are connected setting with finished plastic, due to
Connect in trapezoidal annular groove, be also filled with plastics between stop pin, increase the connectivity robustness between the alignment pin and plastics, together
When, the setting of sets of vias is irrigated, also causes the alignment pin when being molded liquid plasticses, liquid plasticses are flowed into perfusion through hole, when
When plastics turn into mould finished product, due to perfusion through hole in be also filled with plastics, further improve connection plunger and back-up ring with
Frictional force between finished plastic, connectivity robustness therebetween is enhanced, and then improve alignment pin and plastic mould
Connectivity robustness, during long-term use, alignment pin will not also come off from plastics easily, ensure that it to plastics
The positioning action of mould, the service life of plastic mould is extended, saved the waste of resource, while also ensure that holding for work
It is continuous to carry out, operating efficiency is improved, also a saving production cost.
In the present embodiment, the connection plunger is shaped as hexagonal column, this kind of structure of the connection plunger so that should
Alignment pin when in use, adds its frictional force between plastic mould finished product, further increases connection therebetween
Fastness, further increase the service life of the alignment pin.
Claims (2)
- A kind of 1. injection alignment pin of stable connection, it is characterised in that：The alignment pin includes positioning and guiding bar, connecting pin Head, the trapezoidal annular groove of connection, perfusion sets of vias and back-up ring, the positioning and guiding bar is cylindrical, same between centers on the positioning and guiding bar Connection plunger and back-up ring are formed with every parallel, horizontal one end of the positioning and guiding bar is formed with connection plunger, the connection plunger and gear The trapezoidal annular groove of connection is formed with positioning and guiding bar between circle, one end of the trapezoidal annular groove of the connection extends to the close of connection plunger On the inner surface of positioning and guiding bar, the other end of the trapezoidal annular groove of the connection extends to the inner surface of the close connection plunger of back-up ring On, the section of the trapezoidal annular groove of connection vertically is set in isosceles trapezoid；Along the circumferential direction uniform interval is formed with the resistance of multiple axially disposed needle-likes on the end face of back-up ring away from connection plunger Pin is kept off, one end of the remote back-up ring of the stop pin is set for tip-like；It is circumferentially square on towards the end face of the connection plunger of back-up ring The stop pin of multiple axially disposed needle-likes is also formed with to uniform interval, one end of the remote connection plunger of the stop pin is pin Pointed setting；It is axially spaced in the positioning and guiding bar to be formed with multiple perfusion sets of vias, the perfusion sets of vias include it is multiple radially The perfusion through hole of setting, the plurality of perfusion through hole are along the circumferential direction arranged in a crossed manner；More preferably, the inner wall surface of the perfusion through hole On be formed with anti-slip veins；The minimum diameter of the back-up ring is more than the maximum gauge of connection plunger, and the minimum diameter of the connection plunger is led more than positioning To the diameter of bar.
- 2. the injection alignment pin of stable connection according to claim 1, it is characterised in that：The shape of the connection plunger For hexagonal column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574225.7A CN107630883A (en) | 2016-07-18 | 2016-07-18 | The injection alignment pin of stable connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574225.7A CN107630883A (en) | 2016-07-18 | 2016-07-18 | The injection alignment pin of stable connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107630883A true CN107630883A (en) | 2018-01-26 |
Family
ID=61113347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574225.7A Pending CN107630883A (en) | 2016-07-18 | 2016-07-18 | The injection alignment pin of stable connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107630883A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0970831A (en) * | 1995-09-07 | 1997-03-18 | Meiki Co Ltd | Mold equipped with guide pin for adjusting centering |
| CN102889290A (en) * | 2011-07-21 | 2013-01-23 | 形状连接技术有限公司及两合公司 | Functional element with anti-twist properties and assembly component comprising the functional element and a sheet metal section |
| CN203796701U (en) * | 2014-04-14 | 2014-08-27 | 温州市欧力尔标准件有限公司 | Pin bolt |
| CN203868581U (en) * | 2014-04-30 | 2014-10-08 | 永高股份有限公司 | Polyethylene electric fusion pipe mold core positioning separated type wiring terminal |
| CN104943089A (en) * | 2015-06-24 | 2015-09-30 | 永高股份有限公司 | Improved guiding and positioning pin for injection mold |
| CN204942193U (en) * | 2015-09-09 | 2016-01-06 | 宁波瑞国精机工业有限公司 | Structure improved positioning shaft |
| CN205977953U (en) * | 2016-07-18 | 2017-02-22 | 天津市天龙得冷成型部件有限公司 | Connect stable moulding plastics and use locating pin |
-
2016
- 2016-07-18 CN CN201610574225.7A patent/CN107630883A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0970831A (en) * | 1995-09-07 | 1997-03-18 | Meiki Co Ltd | Mold equipped with guide pin for adjusting centering |
| CN102889290A (en) * | 2011-07-21 | 2013-01-23 | 形状连接技术有限公司及两合公司 | Functional element with anti-twist properties and assembly component comprising the functional element and a sheet metal section |
| CN203796701U (en) * | 2014-04-14 | 2014-08-27 | 温州市欧力尔标准件有限公司 | Pin bolt |
| CN203868581U (en) * | 2014-04-30 | 2014-10-08 | 永高股份有限公司 | Polyethylene electric fusion pipe mold core positioning separated type wiring terminal |
| CN104943089A (en) * | 2015-06-24 | 2015-09-30 | 永高股份有限公司 | Improved guiding and positioning pin for injection mold |
| CN204942193U (en) * | 2015-09-09 | 2016-01-06 | 宁波瑞国精机工业有限公司 | Structure improved positioning shaft |
| CN205977953U (en) * | 2016-07-18 | 2017-02-22 | 天津市天龙得冷成型部件有限公司 | Connect stable moulding plastics and use locating pin |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |