CN107630884A - Anti-dropout alignment pin is used in injection - Google Patents
Anti-dropout alignment pin is used in injection Download PDFInfo
- Publication number
- CN107630884A CN107630884A CN201610574336.8A CN201610574336A CN107630884A CN 107630884 A CN107630884 A CN 107630884A CN 201610574336 A CN201610574336 A CN 201610574336A CN 107630884 A CN107630884 A CN 107630884A
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- China
- Prior art keywords
- connection
- positioning
- ring
- guiding bar
- alignment pin
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Abstract
The present invention relates to a kind of injection anti-dropout alignment pin, the alignment pin includes positioning and guiding bar, connect plunger, connect annular groove and hexagonal 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 hexagonal back-up ring, horizontal one end of the positioning and guiding bar is formed with connection plunger, caved inward on positioning and guiding bar between the connection plunger and hexagonal back-up ring and be formed with connection annular groove, the coaxial system of hexagonal back-up ring is on positioning and guiding bar, and it is formed with connection annular groove on the positioning and guiding bar between connection plunger and hexagonal back-up ring.This alignment pin improves the connectivity robustness with plastic mould, during long-term use, alignment pin will not also come off from plastics easily, its positioning action to plastic mould is ensure that, the service life of plastic mould is extended, has saved resource, it ensure that the lasting progress of work, operating efficiency is improved, and connects the setting of annular groove, also a saving production cost.
Description
Technical field
The invention belongs to fastening connection piece technical field, is related to alignment pin, and anti-dropout alignment pin is used in especially a kind of injection.
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 anti-dropout alignment pin is used in one kind injection, should
Alignment pin design science is reasonable, simple in construction, extends the service life of plastic mould, has saved resource and use cost.
The technical proposal for solving the technical problem of the invention is：
One kind injection anti-dropout alignment pin, the alignment pin include positioning and guiding bar, connection plunger, connection annular groove and six
Angle back-up ring, the positioning and guiding bar is cylindrical, and coaxial spaced is parallel on the positioning and guiding bar is formed with connection plunger and hexagonal gear
Circle, horizontal one end of the positioning and guiding bar are formed with connection plunger, the positioning and guiding bar between the connection plunger and hexagonal back-up ring
On cave inward and be formed with connection annular groove, one end of the connection annular groove extends to the inner surface of the close positioning and guiding bar of connection plunger
On, the other end of the connection annular groove is extended on the inner surface of close connection plunger of hexagonal back-up ring, the shape of the hexagonal back-up ring
For hexagonal column, the section of the connection annular groove vertically is in the arcuation of both ends high, middle low；
The minimum diameter of the hexagonal back-up ring is more than more than 0.7 times of the maximum gauge of connection plunger, the connection plunger
Minimum diameter be more than more than 0.3 times of diameter of positioning and guiding bar.
Moreover, the connection plunger is shaped as hexagonal column.
Moreover, the positioning and guiding bar, connection plunger, connection annular groove and the outer surface of hexagonal back-up ring closely set electrophoresis
Dope layer.
The advantages and positive effects of the present invention are：
1st, this alignment pin includes positioning and guiding bar, connection plunger, connection annular groove and hexagonal back-up ring, connects plunger and hexagonal gear
Connection annular groove is formed with positioning and guiding bar between circle so that the alignment pin is connected in annular groove when injection is to liquid plasticses
Can hydraulically full plastics, when plastics turn into mould finished product, positioning and guiding bar, connection plunger, connection annular groove and hexagonal back-up ring
Be connected setting with finished plastic, and due to being also filled with plastics in connection annular groove, the section of connection annular groove vertically is in both ends
High, middle low arcuation so that the plastics in connection annular groove are tightly attached in connection annular groove, increase the alignment pin and plastics
Between connectivity robustness, simultaneously as hexagonal back-up ring is shaped as hexagonal column, the minimum diameter of hexagonal back-up ring is more than connection
More than 0.7 times of the maximum gauge of plunger, the minimum diameter of the connection plunger be more than 0.3 times of diameter of positioning and guiding bar with
On, the frictional force between connection plunger and hexagonal back-up ring and finished plastic is also further increased, enhances company therebetween
Fastness is connect, and then improves the connectivity robustness of alignment pin and plastic mould, during long-term use, alignment pin
Also it will not be come off easily from plastics, ensure that its positioning action to plastic mould, extend the service life of plastic mould,
The waste of resource has been saved, while also ensure that the lasting progress of work, has improved operating efficiency, and connect setting for annular groove
Put, 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.
3rd, the outer surface of the positioning and guiding bar of this alignment pin, connection plunger, connection annular groove and hexagonal back-up ring is closely set
Electrophoretic coating layer, the setting of the electrophoretic coating layer, alignment pin can be protected, improve anticorrosive property, the water resistance of the alignment pin
And chemical resistance, and low stain, province's energy, resource-saving.
Brief description of the drawings
Fig. 1 is the structure connection signal view of the present invention；
Fig. 2 is Fig. 1 right view.
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.
Anti-dropout alignment pin is used in one kind injection, and as depicted in figs. 1 and 2, the alignment pin includes positioning and guiding bar 1, connection
Plunger 4, connection annular groove 3 and hexagonal back-up ring 2, the positioning and guiding bar is cylindrical, and coaxial spaced is parallel on the positioning and guiding bar
Connection plunger and hexagonal back-up ring are formed with, horizontal one end of the positioning and guiding bar is formed with connection plunger, the connection plunger and hexagonal
Caved inward on positioning and guiding bar between back-up ring and be formed with connection annular groove, one end of the connection annular groove extends to leaning on for connection plunger
On the inner surface of nearly positioning and guiding bar, the other end of the connection annular groove extends to the inner surface of the close connection plunger of hexagonal back-up ring
On, the hexagonal back-up ring is shaped as hexagonal column, and the section of the connection annular groove vertically is in the arcuation of both ends high, middle low；
The minimum diameter of the hexagonal back-up ring is more than more than 0.7 times of the maximum gauge of connection plunger, the connection plunger
Minimum diameter be more than more than 0.3 times of diameter of positioning and guiding bar.
This alignment pin includes positioning and guiding bar, connection plunger, connection annular groove and hexagonal back-up ring, connects plunger and hexagonal back-up ring
Between positioning and guiding bar on be formed with connection annular groove so that the alignment pin injection to liquid plasticses when, connect annular groove in also can
Enough hydraulically full plastics, when plastics turn into mould finished product, positioning and guiding bar, connection plunger, connection annular groove and hexagonal back-up ring are equal
Be connected setting with finished plastic, due to being also filled with plastics in connection annular groove, the section of connection annular groove vertically in both ends it is high,
Middle low arcuation so that the plastics in connection annular groove are tightly attached in connection annular groove, increase the alignment pin and plastics it
Between connectivity robustness, simultaneously as hexagonal back-up ring is shaped as hexagonal column, the minimum diameter of hexagonal back-up ring is more than connecting pin
More than 0.7 times of maximum gauge of head, the minimum diameter of the connection plunger be more than 0.3 times of the diameter of positioning and guiding bar with
On, the frictional force between connection plunger and hexagonal back-up ring and finished plastic is also further increased, enhances company therebetween
Fastness is connect, and then improves the connectivity robustness of alignment pin and plastic mould, during long-term use, alignment pin
Also it will not be come off easily from plastics, ensure that its positioning action to plastic mould, extend the service life of plastic mould,
The waste of resource has been saved, while also ensure that the lasting progress of work, has improved operating efficiency, and connect setting for annular groove
Put, 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.
In the present embodiment, the outer surface of the positioning and guiding bar, connection plunger, connection annular groove and hexagonal back-up ring is close
Electrophoretic coating layer (not shown) is set, the setting of the electrophoretic coating layer, alignment pin can be protected, improve the alignment pin
Anticorrosive property, water resistance and chemical resistance, and low stain, province's energy, resource-saving.
Claims (3)
1. anti-dropout alignment pin is used in one kind injection, it is characterised in that：The alignment pin includes positioning and guiding bar, connection plunger, connected
Annular groove and hexagonal back-up ring are connect, the positioning and guiding bar is cylindrical, and coaxial spaced is parallel on the positioning and guiding bar is formed with connecting pin
Head and hexagonal back-up ring, horizontal one end of the positioning and guiding bar is formed with connection plunger, between the connection plunger and hexagonal back-up ring
Caved inward on positioning and guiding bar and be formed with connection annular groove, one end of the connection annular groove extends to the close positioning and guiding of connection plunger
On the inner surface of bar, the other end of the connection annular groove is extended on the inner surface of close connection plunger of hexagonal back-up ring, the hexagonal
Back-up ring is shaped as hexagonal column, and the section of the connection annular groove vertically is in the arcuation of both ends high, middle low；
The minimum diameter of the hexagonal back-up ring is more than more than 0.7 times of the maximum gauge of connection plunger, and the connection plunger is most
Minor diameter is more than more than 0.3 times of the diameter of positioning and guiding bar.
2. anti-dropout alignment pin is used in injection according to claim 1, it is characterised in that：The connection plunger is shaped as six
Corner post shape.
3. anti-dropout alignment pin is used in injection according to claim 1 or 2, it is characterised in that：The positioning and guiding bar, connection
The outer surface of plunger, connection annular groove and hexagonal back-up ring closely sets electrophoretic coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574336.8A CN107630884A (en) | 2016-07-18 | 2016-07-18 | Anti-dropout alignment pin is used in injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574336.8A CN107630884A (en) | 2016-07-18 | 2016-07-18 | Anti-dropout alignment pin is used in injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107630884A true CN107630884A (en) | 2018-01-26 |
Family
ID=61113266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574336.8A Pending CN107630884A (en) | 2016-07-18 | 2016-07-18 | Anti-dropout alignment pin is used in injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107630884A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401405Y (en) * | 2009-04-21 | 2010-02-10 | 肖云华 | Connecting piece |
| CN101701596A (en) * | 2009-11-03 | 2010-05-05 | 力帆实业(集团)股份有限公司 | Disassembly preventing bolt |
| CN202348881U (en) * | 2011-11-01 | 2012-07-25 | 平湖比尔安达新材料科技有限公司 | Abrasion-resistant positioning pin |
| US20130115027A1 (en) * | 2010-01-27 | 2013-05-09 | Nedschroef Altena Gmbh | Connecting element and method for manufacturing a connecting element |
| CN203308855U (en) * | 2013-06-24 | 2013-11-27 | 乐清吉飞龙仪表科技有限公司 | Pin |
| CN203348266U (en) * | 2013-06-24 | 2013-12-18 | 乐清吉飞龙仪表科技有限公司 | Fastening pin |
| CN205977955U (en) * | 2016-07-18 | 2017-02-22 | 天津市天龙得冷成型部件有限公司 | Mould plastics and use anti -drop locating pin |
-
2016
- 2016-07-18 CN CN201610574336.8A patent/CN107630884A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201401405Y (en) * | 2009-04-21 | 2010-02-10 | 肖云华 | Connecting piece |
| CN101701596A (en) * | 2009-11-03 | 2010-05-05 | 力帆实业(集团)股份有限公司 | Disassembly preventing bolt |
| US20130115027A1 (en) * | 2010-01-27 | 2013-05-09 | Nedschroef Altena Gmbh | Connecting element and method for manufacturing a connecting element |
| CN202348881U (en) * | 2011-11-01 | 2012-07-25 | 平湖比尔安达新材料科技有限公司 | Abrasion-resistant positioning pin |
| CN203308855U (en) * | 2013-06-24 | 2013-11-27 | 乐清吉飞龙仪表科技有限公司 | Pin |
| CN203348266U (en) * | 2013-06-24 | 2013-12-18 | 乐清吉飞龙仪表科技有限公司 | Fastening pin |
| CN205977955U (en) * | 2016-07-18 | 2017-02-22 | 天津市天龙得冷成型部件有限公司 | Mould plastics and use anti -drop locating pin |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |
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| WD01 | Invention patent application deemed withdrawn after publication |