CN205977953U - Connect stable moulding plastics and use locating pin - Google Patents
Connect stable moulding plastics and use locating pin Download PDFInfo
- Publication number
- CN205977953U CN205977953U CN201620758903.0U CN201620758903U CN205977953U CN 205977953 U CN205977953 U CN 205977953U CN 201620758903 U CN201620758903 U CN 201620758903U CN 205977953 U CN205977953 U CN 205977953U
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- China
- Prior art keywords
- connection
- plunger
- positioning
- ring
- annular groove
- 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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Abstract
The utility model relates to a connect stable moulding plastics and use locating pin, the locating pin includes clamping orient pole, connecting pin head, connects trapezoidal annular groove, fills through -hole group and retaining ring, the clamping orient pole is cylindricly, and the parallel system in coaxial interval has connecting pin head and a retaining ring on this clamping orient pole, and the horizontal one end system of this clamping orient pole has a connecting pin head, the system has connection trapezoidal annular groove on the clamping orient pole between connecting pin head and the retaining ring. This locating pin has improved the frictional force between connecting pin head and retaining ring and the finished product plastics, the firm in connection nature between the two has been strengthened, and then locating pin and plastic mold's firm in connection nature has been improved, even at the long -term in -process that uses, the locating pin can not drop from plastics easily yet, its positioning action to plastic mold has been guaranteed, plastic mold's life has been prolonged, the waste of resource has been practiced thrift, continuously going on of the work of also having guaranteed simultaneously, and a work efficiency is increased, manufacturing cost has still been practiced thrift.
Description
Technical field
This utility model belongs to fastening connection piece technical field, is related to alignment pin, especially a kind of injection of stable connection
Use alignment pin.
Background technology
At present, the requirement of the precision of mould of plastics is all especially high, in process of production, if only carrying out stent by bolt
Typically not achieve required precision if plate, be therefore typically necessary the purpose to reach positioning by alignment pin, or prevent
Installation site, the mistake in direction etc..In the mould of plastics being especially made up of two parts or more parts, for making mould adjacent two
Part is accurately positioned often using to alignment pin.
But, current alignment pin when being moulded in mould of plastics, after mould molding, due to alignment pin and the modern designs of plastics
The connection of tool is not especially firm, and during life-time service, alignment pin easily comes off thus losing to moulding from plastics
The positioning action of material mould, causes can not using of mould of plastics, need to abandon mould of plastics, in turn resulted in the wave of resource
Take, cannot guarantee that persistently carrying out of work simultaneously, reduce work efficiency.
By retrieval, find several patent publication us related to present patent application as follows：
1st, slip-off preventing alignment pin (CN202612317U), it includes body, and body is provided with circumferentially disposed outer of ring body
The resilient ridge of prominent body.Using this technical scheme, after alignment pin enters pin-and-hole, returned by the moment of resilient ridge
Bullet, makes alignment pin and pin-and-hole wall pressure tightly it is ensured that being reliably connected between two parts and positioning, and the difference using each part external diameter
Different prevent alignment pin from coming off.Its structure is simple, handling ease.
2nd, the nylon protection head anti-drop device (CN203641242U) of alignment pin, including alignment pin, in nylon protection head
After sheathed resilient sleeve, it is arranged in the installing hole of alignment pin top first, it is characterized in that：Described resilient sleeve bottom is sequentially formed with
Step and guiding circular cone, described resilient sleeve surface offers bar-shaped trough；Open corresponding to the first installing hole bottom on described alignment pin
Be provided with the second installing hole, the second installing hole is coaxially disposed with the first installing hole, and the second installing hole with diameter greater than first installation
The diameter in hole, the junction of described first installing hole and the second installing hole forms 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 described projection.Can effectively be prevented using this device
Resilient sleeve comes off from alignment pin endoporus, and is avoided that nylon protection head comes off in resilient sleeve.
By contrast, there are the different of essence from above-mentioned patent publication us in present patent application.
Utility model content
The purpose of this utility model is to overcome the weak point of original technology, and the injection providing a kind of stable connection is with determining
Position pin, this alignment pin design science is reasonable, structure simple, extends the service life of mould of plastics, has saved resource and use
Cost.
This utility model solves technical problem and be employed technical scheme comprise that：
A kind of injection alignment pin of stable connection, described alignment pin include positioning and guiding bar, connect plunger, connect trapezoidal
Annular groove, perfusion sets of vias and back-up ring, described positioning and guiding bar is cylindrical, the parallel company of being formed with of coaxial spaced on this positioning and guiding bar
Pin head and back-up ring, horizontal one end of this positioning and guiding bar is formed with connection plunger, the positioning between described connection plunger and back-up ring
The trapezoidal annular groove of connection is formed with guide post, one end of the trapezoidal annular groove of this connection extends to the close positioning and guiding bar connecting plunger
On inner surface, the other end of the trapezoidal annular groove of this connection extends on the inner surface of close connection plunger of back-up ring, described connection ladder
Shape ring groove section vertically is in that isosceles trapezoid is arranged；
It is formed with multiple axially disposed needle-likes away from being along the circumferential direction uniformly spaced on the end face of the back-up ring connecting plunger
Stop pin, one end away from back-up ring of this stop pin is tip-like setting；Towards on the end face of the connection plunger of back-up ring along circle
The uniform interval of circumferential direction is also formed with the stop pin of multiple axially disposed needle-likes, one end away from connection plunger of this stop pin
For tip-like setting；
Axially spaced in described positioning and guiding bar be formed with multiple perfusion sets of vias, described perfusion sets of vias includes multiple edges
The perfusion through hole being radially arranged, the plurality of perfusion through hole is along the circumferential direction arranged in a crossed manner；More preferably, the inwall of described perfusion through hole
Anti-slip veins are formed with surface；
The minimum diameter of described back-up ring is more than the maximum gauge connecting plunger, and the minimum diameter of described connection plunger is more than to be determined
The diameter of position guide post.
And, described connect plunger be shaped as hexagonal column.
Advantage of the present utility model and good effect are：
1st, this alignment pin is provided with positioning and guiding bar, connects plunger, connects trapezoidal annular groove, perfusion through hole and back-up ring, close
Connect plunger positioning and guiding bar on be formed with connection trapezoidal annular groove, back-up ring, connect plunger end face on be respectively provided with stop pin so that
This alignment pin be molded liquid plasticses when, connect trapezoidal annular groove in, stop pin between also can hydraulically full plastics, when plastics become
During for mould finished product, positioning and guiding bar, connect plunger, connect trapezoidal annular groove and back-up ring and be all connected with finished plastic setting, by
In the trapezoidal annular groove of connection, between stop pin, it has been also filled with plastics, increased the connectivity robustness between this alignment pin and plastics,
Meanwhile, irrigate the setting of sets of vias, also make this alignment pin when being molded liquid plasticses, liquid plasticses flow in perfusion through hole,
When plastics become mould finished product, it has been also filled with plastics due in perfusion through hole, has further improve connection plunger and back-up ring
Frictional force and finished plastic between, enhances connectivity robustness therebetween, and then improves alignment pin and mould of plastics
Connectivity robustness, even if during life-time service, alignment pin also will not come off easily it is ensured that it is to moulding from plastics
The positioning action of material mould, extends the service life of mould of plastics, has saved the waste of resource, also ensure that work simultaneously
Persistently carry out, improve work efficiency, also a saving production cost.
2nd, the connection plunger of this alignment pin be shaped as hexagonal column, this kind of structure of this connection plunger is so that this positioning
Pin, when using, increased itself frictional force and mould of plastics finished product between, further increases being connected firmly therebetween
Property, further increase the service life of this alignment pin.
Brief description
Fig. 1 is that structure of the present utility model connects front view；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is that the right side of Fig. 1 regards enlarged drawing.
Specific embodiment：
For content of the present utility model, feature and effect can be further appreciated that, hereby enumerate following examples, and coordinate accompanying drawing
Describe in detail as follows.It should be noted that the present embodiment is descriptive, it is not determinate it is impossible to thus limit this practicality
New protection domain.
A kind of injection alignment pin of stable connection, as shown in Figure 1, Figure 2 and Figure 3, described alignment pin includes 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, described positioning and guiding bar is cylindrical, this positioning
On guide post, coaxial spaced is parallel is formed with connection plunger and back-up ring, and horizontal one end of this positioning and guiding bar is formed with connection plunger, institute
State and the trapezoidal annular groove of connection is formed with the positioning and guiding bar connecting between plunger and back-up ring, one end of the trapezoidal annular groove of this connection extends to
Connect on the inner surface of close positioning and guiding bar of plunger, the other end of the trapezoidal annular groove of this connection extends to the close connection of back-up ring
On the inner surface of plunger, described connection trapezoidal annular groove section vertically is in that isosceles trapezoid is arranged；
It is formed with multiple axially disposed needle-likes away from being along the circumferential direction uniformly spaced on the end face of the back-up ring connecting plunger
Stop pin 4, one end away from back-up ring of this stop pin is tip-like setting；Towards on the end face of the connection plunger of back-up ring along circle
The uniform interval of circumferential direction is also formed with the stop pin of multiple axially disposed needle-likes, one end away from connection plunger of this stop pin
For tip-like setting；
Axially spaced in described positioning and guiding bar be formed with multiple perfusion sets of vias, described perfusion sets of vias includes multiple edges
The perfusion through hole 3 being radially arranged, the plurality of perfusion through hole is along the circumferential direction arranged in a crossed manner；More preferably, described perfusion through hole is interior
Anti-slip veins (not shown) is formed with wall surface；
The minimum diameter of described back-up ring is more than the maximum gauge connecting plunger, and the minimum diameter of described connection plunger is more than to be determined
The diameter of position guide post.
This alignment pin is provided with positioning and guiding bar, connects plunger, connects trapezoidal annular groove, perfusion through hole and back-up ring, near even
The trapezoidal annular groove of connection is formed with the positioning and guiding bar of pin head, back-up ring, the end face of connection plunger are respectively provided with stop pin so that being somebody's turn to do
Alignment pin be molded liquid plasticses when, connect trapezoidal annular groove in, stop pin between also can hydraulically full plastics, when plastics become
During mould finished product, positioning and guiding bar, connect plunger, connect trapezoidal annular groove and back-up ring and be all connected with finished plastic setting, due to
Connect in trapezoidal annular groove, stop and be also filled with plastics between pin, increase the connectivity robustness between this alignment pin and plastics, with
When, the setting of perfusion sets of vias, also make this alignment pin when being molded liquid plasticses, liquid plasticses flow in perfusion through hole, when
When plastics become 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, enhances connectivity robustness therebetween, and then improves alignment pin and mould of plastics
Connectivity robustness, even if during life-time service, alignment pin also will not come off it is ensured that it is to plastics easily from plastics
The positioning action of mould, extends the service life of mould of plastics, has saved the waste of resource, also ensure that holding of work simultaneously
Continue and carry out, improve work efficiency, also a saving production cost.
In the present embodiment, described connect plunger be shaped as hexagonal column, this kind of structure of this connection plunger was so that should
Alignment pin, when using, increased itself frictional force and mould of plastics finished product between, further increases connection therebetween
Fastness, further increases the service life of this alignment pin.
Claims (2)
1. a kind of stable connection injection alignment pin it is characterised in that：Described alignment pin includes positioning and guiding bar, connecting pin
Head, the trapezoidal annular groove of connection, perfusion sets of vias and back-up ring, described positioning and guiding bar is cylindrical, same between centers on this positioning and guiding bar
It is formed with connection plunger and back-up ring every parallel, horizontal one end of this positioning and guiding bar is formed with connection plunger, described connection plunger and gear
The trapezoidal annular groove of connection is formed with the positioning and guiding bar between circle, one end of the trapezoidal annular groove of this connection extends to and connects the close of plunger
On the inner surface of positioning and guiding bar, the other end of the trapezoidal annular groove of this connection extends to the inner surface of the close connection plunger of back-up ring
On, described connection trapezoidal annular groove section vertically is in that isosceles trapezoid is arranged；
It is spaced the resistance being formed with multiple axially disposed needle-likes away from along the circumferential direction uniform on the end face of the back-up ring connecting plunger
Gear pin, one end away from back-up ring of this stop pin is arranged for tip-like；Circumferentially square towards on the end face of the connection plunger of back-up ring
Also it is formed with the stop pin of multiple axially disposed needle-likes to uniform interval, this stop pin is pin away from the one end connecting plunger
Pointed setting；
Axially spaced in described positioning and guiding bar be formed with multiple perfusion sets of vias, described perfusion sets of vias include multiple radially
The perfusion through hole of setting, the plurality of perfusion through hole is along the circumferential direction arranged in a crossed manner；More preferably, the inner wall surface of described perfusion through hole
On be formed with anti-slip veins；
The minimum diameter of described back-up ring is more than the maximum gauge connecting plunger, and the minimum diameter of described connection plunger is led more than positioning
Diameter to bar.
2. stable connection according to claim 1 injection alignment pin it is characterised in that：The described shape connecting plunger
For hexagonal column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620758903.0U CN205977953U (en) | 2016-07-18 | 2016-07-18 | Connect stable moulding plastics and use locating pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620758903.0U CN205977953U (en) | 2016-07-18 | 2016-07-18 | Connect stable moulding plastics and use locating pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977953U true CN205977953U (en) | 2017-02-22 |
Family
ID=58026095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620758903.0U Expired - Fee Related CN205977953U (en) | 2016-07-18 | 2016-07-18 | Connect stable moulding plastics and use locating pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630883A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | The injection alignment pin of stable connection |
-
2016
- 2016-07-18 CN CN201620758903.0U patent/CN205977953U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630883A (en) * | 2016-07-18 | 2018-01-26 | 天津市天龙得冷成型部件有限公司 | The injection alignment pin of stable connection |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190718 |