CN106925743A - A kind of self lubricity injection plunger - Google Patents
A kind of self lubricity injection plunger Download PDFInfo
- Publication number
- CN106925743A CN106925743A CN201710259732.6A CN201710259732A CN106925743A CN 106925743 A CN106925743 A CN 106925743A CN 201710259732 A CN201710259732 A CN 201710259732A CN 106925743 A CN106925743 A CN 106925743A
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- CN
- China
- Prior art keywords
- injection plunger
- hole
- injection
- particle
- self lubricity
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2023—Nozzles or shot sleeves
Abstract
A kind of self lubricity injection plunger described herein, including injection plunger (1), being caved inward on the lateral wall of injection plunger (1) has hole (11), the particle (2) of adsorbable lubricant grease is installed, the surface of particle (2) flushes with the outer side wall surface of injection plunger (1) in hole (11)；With simple structure, reasonable in design, it is easy to use, convenient lubrication；Selection is convenient, be easy to manufacture, low cost, the effect of popularization of being easy to.
Description
Technical field
The application is related to the injection field of die casting machine, specially a kind of self lubricity injection plunger, for the injection of die casting machine
In lubrication.
Background technology
In the prior art：
For example：Chinese Patent Application No. CN201320095805.X；Applying date 2013.03.01；The utility model discloses
A kind of injection plunger of die casting machine, including the housing (10) of cavity (11) is provided with, copper pipe (12) is provided with the cavity (11), it is described
Copper pipe (12) upper end is provided with inlet end (2), and lower end is provided with sealing-plug (6), and the side wall of the cavity (11) is provided with delivery port
End (9), the lower end of the housing (10) is provided with injection termination (8), lubricating oil is additionally provided with the wall thickness of housing (10) side wall
Road (5), oil leab (5) upper end is provided with plug (4), and lower end is communicated in the outside and injection termination of the sealing-plug (6)
(8) space that inner side surrounds.The utility model reasonable in design, cooling and high lubricating effect, long service life.
In the patent of prior art, the lubrication of injection plunger is improved by improving the internal structure of injection plunger and the longevity is used
Life, cannot still meet the use requirement of injection plunger surface lubrication.
Current die casting machine, in order to slow down the abrasion between injection plunger and injection machine barrel, in the course of work of each mould,
When injection plunger is moved out to the outside of barrel, can be toward mist of oil for lubricating oil of injection plunger top spray.So because lubricating oil has
Lubrication, injection plunger can be reduced with the abrasion of injection machine barrel.After producing a mechanograph, the lubricating oil on injection plunger loses,
Before next mould production, the major part of injection plunger can expose injection machine barrel outside, then spray a lubricant mist, so ensure that
The lubrication of injection plunger.
But this mode, is not suitable for the forming requirements that injection is vacuumized.In this occasion, injection plunger, injection machine
Cylinder, and other injection parts, meeting quilt cover get up, and the inside of cover is vacuumized with vaccum-pumping equipment.At that time, in cover
The air in portion is all that can be extracted out and be formed vacuum by lasting.If spraying is accessed inside cover, and lubrication is sprayed to injection plunger
Oil mist of oil, at that time mist of oil can also be pumped, injection head surface does not still become lubricant effect.Meanwhile, vaccum-pumping equipment is taken out
Enter mist of oil, mist of oil can damage the life-span of vaccum-pumping equipment.
In consideration of it, how to design a kind of self lubricity injection plunger, the defect in the presence of above-mentioned prior art is overcome, be
Those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
The application's aims to overcome that technical problem present in prior art, and provides a kind of self lubricity injection
Head.
The purpose of the application is completed by following technical solution, a kind of self lubricity injection plunger, including injection plunger,
Being caved inward on the lateral wall of injection plunger has hole, and the particle of adsorbable lubricant grease, the surface of particle and injection are provided with hole
The outer side wall surface of head is flushed.
Particle is installed using interference fit with the mounting means in hole or is installed or adopted using high temperature resistant glue bonding
Installation is screwed with screw thread.
Particle is made by graphite.
The Circularhole diameter length in hole is in the range of 1st/to five/10th of injection plunger diameter D length.
Bore edges apart from injection plunger front end gap length E, wherein, the relation of gap length E and injection plunger length L：E exists
In the length range of 1/5L~1/3L.
Hole on injection plunger is arranged in a ring.
It is staggered between the hole of adjacent annular arrangement on injection plunger.
The gross area in hole accounts for the 10%--50% of injection plunger surface area.
The gross area in hole accounts for the 12%--22% of injection plunger surface area.
The gross area in hole accounts for the 14% of injection plunger surface area.
The application compared with prior art, with following obvious advantage and effect：
1st, simple structure, reasonable in design, it is easy to use, convenient lubrication.
2nd, selection is convenient, be easy to manufacture, and low cost, is easy to popularization.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please does not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the schematic perspective view of injection plunger in the application.
Fig. 2 is the design principle figure in hole on edge in the application injection plunger.
Fig. 3 is the working state figure of injection plunger in the application.
Fig. 4 is the design principle figure of the application injection plunger mesopore.
Fig. 5 is the sectional view of the B-B positions of Fig. 4 in the application.
Specific embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Corresponding accompanying drawing is clearly and completely described to technical scheme.Obviously, described embodiment is only the application one
Section Example, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of the application protection.
A kind of self lubricity injection plunger described herein, including injection plunger 1, concave on the lateral wall of injection plunger 1
Falling into has hole 11, and the particle 2 of adsorbable lubricant grease is provided with hole 11, and the surface of particle 2 is neat with the outer side wall surface of injection plunger 1
It is flat；With simple structure, reasonable in design, it is easy to use, convenient lubrication；Selection is convenient, be easy to manufacture, and low cost, is easy to
The effect of popularization.
In the embodiment of the present application, 11 are punched on injection plunger 1, and the particle 2 of self-lubricating is installed.Self-lubricating particle 2 was used
It is full of cooperation, or high temperature resistant glue bonding, or screw thread is screwed, or other modes, it is fixed on injection plunger.
The scheme one of self-lubricating particle, is that material uses graphite, graphite to may be dipped in lubricating oil, and can absorb profit
Lubricating oil.In process of production, temperature influence, graphite constantly can go out lubricating oil for wash rice, make the outer surface of injection plunger 1 have lubrication to imitate
Really.So it is no longer needed for again to the oil spray of injection plunger 1.Process after many moulds, when the lubricant effect reduction of injection plunger 1
Afterwards, the injection plunger 1 that can more renew.The injection plunger 1 changed, can be immersed in lubricating oil, and can absorb profit again again
Lubricating oil, recovers lubricant effect.
Referring to shown in Fig. 1 to Fig. 5, a kind of self lubricity injection plunger, including injection plunger 1, on the lateral wall of injection plunger 1 to
Sunken inside has hole 11, and the particle 2 of adsorbable lubricant grease, the surface of particle 2 and the lateral wall table of injection plunger 1 are provided with hole 11
Face flushes.
As shown in figure 1, installing self-lubricating particle 2 on injection plunger 1.Injection plunger 1 keeps one with the outer face of self-lubricating particle 2
Cause, wherein, the lateral wall of injection plunger 1 forms circle, and then ensures the whole cylindrical uniformity of injection plunger 1.
Working condition in as shown in Figure 3, it is known that, the surface of particle 2 flushes with the outer side wall surface of injection plunger 1.
During due to work, there is metal melting raw material in barrel 3, when injection plunger 1 pushes away metal melting raw material, metal melting raw material
The gap between injection plunger 1 and barrel 3 can be squeezed into.After injection plunger 1 clamp-ons the segment distance of barrel 3 one, injection plunger 1 and barrel 3
Between gap can solidify and form a circle quoit, the position of self-lubricating particle 2 will avoid this circle quoit, to avoid mutually
Between contact influence quoit shaping also avoid the contact wear of particle 2.
In the embodiment of the present application,
The mounting means in particle 2 and hole 11 installed using interference fit or installed using high temperature resistant glue bonding or
Installation is screwed using screw thread.
Particle 2 can be fixed in hole 11 using various ways, wherein, more letter is installed using interference fit
Easily, cost is low.
In the embodiment of the present application,
The material of self-lubricating particle 2, is not limited to graphite, it is also possible to which other materials replace, such as polytetrafluoroethylene (PTFE) etc..
Can the greasing substance that goes out of wash rice, be not limited to lubricating oil, it is also possible to which other lubricating fluids replace, such as water fluid
Deng.Even also can wash rice go out solid lubrication material, such as molybdenum disulfide powder etc. can realize lubricant effect.
More preferred scheme is that particle 2 is made by graphite, in may be dipped in lubricating oil by graphite, and energy
Enough absorb lubricating oil.In process of production, graphite temperature influence is sharper, and graphite constantly can go out lubricating oil for wash rice, make injection
There is lubricating oil constantly to lubricate in first 1 outer side wall surface.
In the embodiment of the present application,
Hole 11 is Circularhole diameter length in the range of 1st/to five/10th of the diameter D length of injection plunger 1.
The intensity of the more influence injection plunger 1 of the perforate on injection plunger 1 is avoided, is fully to reduce shadow of the perforate to injection plunger 1
Ring.
Wherein, when the diameter D length of injection plunger 1 is 40mm, the graphite material of 7mm diameters is installed on injection plunger 1
Self-lubricating particle 2.Using cylinder, the hole 11 on such injection plunger 1 does not interfere with the intensity of injection plunger 1 to self-lubricating particle 2.
Wherein, in this condition
Often circle self-lubricating material for making clothes quantity is 8, uniform arrangement, and a diameter of φ 7mm, bottom surface is 17mm away from injection plunger center.
The distance of the edge of first lap self-lubricating particle 2 to injection end surface is 26.5mm, can effectively be avoided between injection plunger 1 and barrel 3
The quoit clamp-oned and solidify.Spacing between two circle self-lubricating particles 2 are 10mm, and have 18 degree of rotation on arranging,
The arrangement of such 4 circle, it is ensured that any place in a circumferential direction, can all be lubricated.
Again for example,
When one diameter D of injection plunger 1 is 40mm, it is 9 often to enclose self-lubricating material for making clothes quantity, and uniform arrangement, angle is 40 degree；
It is a diameter of
The spacing between self-lubricating particle 2 on injection plunger 1 in two adjacent collar aperture 11 is have 16 on 10mm, and arrangement
The rotation of (reversely seeing as 24 degree) is spent, the arrangement of such 4 circle, it is ensured that any place in a circumferential direction can all be moistened
It is sliding.
In the embodiment of the present application,
The gap length E of the front end of 11 Edge Distance injection plunger of hole 1, wherein, the pass of the gap length E and length L of injection plunger 1
System：E is in the length range of 1/5L~1/3L.
The interval region that gap length E in the front end of injection plunger 1 is formed, is melted using interval region to the metal in barrel 3
Melting raw material carries out obstruct shaping.
Wherein, when the length L of injection plunger 1 is 90mm, gap length E is 26.5mm, has fully ensured that moistening certainly for injection plunger 1
Slide and for extrusion forming provides space.
In the embodiment of the present application,
Hole 11 on injection plunger 1 is arranged in a ring.
Hole 11 on injection plunger 1 is arranged with multiple loop configuration, wherein, 8 holes 11 are often equipped with, it is adjacent on same ring
The angular interval in hole 11 is 45 degree.
10 holes 11 can certainly be set to, while the angular interval of the adjacent holes being arranged on same ring is 36 degree.
Hole 11 is on injection plunger 1 along annular array, it is ensured that can sufficiently be lubricated on the cylindrical structural of injection plunger 1.
In the embodiment of the present application,
Angle is 18 degree and 27 degree between the hole 11 of adjacent annular arrangement on injection plunger 1.
To avoid 45 degree of interval Angle Positions that lack of lubrication occurs between the hole 11 of adjacent two rows annular, successively by second row ring
The hole 11 of shape arrangement is spaced in the middle of 45 degree of angular intervals, it is ensured that injection plunger 1 is spaced the sufficient lubrication of Angle Position.
In the embodiment of the present application, the gross area in hole 11 accounts for the 10%--50% of the surface area of injection plunger 1.
The value of the surface area shared by graphite particle is, it is necessary to consider the effect of lubrication, it is also desirable to injection plunger after considering to punch
Intensity.The value of the surface area shared by graphite particle, accounts for the 10%-50% of the gross area, and optimal value is 12%-22%.This implementation
In example, the surface area shared by graphite particle accounts for the 14% of the gross area.
The self-lubricating post that the self-lubricating particle 2 of the present embodiment is processed using high purity graphite material.Graphite column is tied because of it
Inherently a kind of solid lubricant of the characteristics of structure property.Simultaneously as formed by pure machining graphite, with excellent resistance to height
Warm nature.During processing injection plunger 1, hole is processed according to above-mentioned arrangement mode on injection plunger, then self-lubricating particle 2 is embedded in
Wherein, external diameter can finally be processed, it is ensured that injection plunger 1 is consistent with the outer face of self-lubricating particle 2.Then can be by injection plunger 1
A period of time in oil is immersed in self-lubricating particle 2.The gross area in hole 11 accounts for the 12%--22% of the surface area of injection plunger 1.
Embodiments herein is the foregoing is only, and, the title that parts are taken in the application can not also
Together, it is not intended to limit the title in the application.To those skilled in the art, the application can have various modifications and variations.
All any modification, equivalent substitution and improvements made within the design of the application and principle etc., should be included in the power of the application
Within sharp claimed range.
Claims (10)
1. a kind of self lubricity injection plunger, including injection plunger (1), it is characterised in that：Caved inward on the lateral wall of injection plunger (1)
There is hole (11), the particle (2) of adsorbable lubricant grease, the surface of particle (2) and the outside of injection plunger (1) are installed in hole (11)
Wall surface is flushed.
2. self lubricity injection plunger according to claim 1, it is characterised in that：Particle (2) and the mounting means in hole (11)
Installed using interference fit or installed using high temperature resistant glue bonding or installation is screwed using screw thread.
3. self lubricity injection plunger according to claim 1, it is characterised in that：Particle (2) is made by graphite.
4. self lubricity injection plunger according to claim 1, it is characterised in that：The Circularhole diameter length in hole (11) is in injection
In the range of 1st/to five/10th of head (1) diameter (D) length.
5. self lubricity injection plunger according to claim 1, it is characterised in that：Before hole (11) Edge Distance injection plunger (1)
The gap length (E) at end, wherein, the relation of gap length (E) and injection plunger (1) length (L)：Length of the E in 1/5L~1/3L
In the range of.
6. self lubricity injection plunger according to claim 1, it is characterised in that：Hole (11) on injection plunger (1) is in a ring
Arrangement.
7. self lubricity injection plunger according to claim 6, it is characterised in that：Adjacent annular arrangement on injection plunger (1)
Hole is staggered between (11).
8. self lubricity injection plunger according to claim 1, it is characterised in that：The gross area in hole (11) accounts for injection plunger (1)
The 10%--50% of surface area.
9. self lubricity injection plunger according to claim 1, it is characterised in that：The gross area in hole (11) accounts for injection plunger (1)
The 12%--22% of surface area.
10. self lubricity injection plunger according to claim 1, it is characterised in that：The gross area in hole (11) accounts for injection plunger (1)
The 14% of surface area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259732.6A CN106925743A (en) | 2017-04-20 | 2017-04-20 | A kind of self lubricity injection plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259732.6A CN106925743A (en) | 2017-04-20 | 2017-04-20 | A kind of self lubricity injection plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106925743A true CN106925743A (en) | 2017-07-07 |
Family
ID=59437777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710259732.6A Pending CN106925743A (en) | 2017-04-20 | 2017-04-20 | A kind of self lubricity injection plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106925743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226713A (en) * | 2018-09-19 | 2019-01-18 | 宁波环亚机械制造有限公司 | Core-pulling slide block antifriction guide frame |
| CN109434069A (en) * | 2019-01-07 | 2019-03-08 | 盐城泰欧昌机械有限公司 | A kind of melting cup of die casting machine of plunger self-lubricating |
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|---|---|---|---|---|
| JPH07229595A (en) * | 1994-02-16 | 1995-08-29 | Etsuo Ando | Heat resistant sliding body and its manufacture |
| JP2001347355A (en) * | 2000-06-07 | 2001-12-18 | Taira Giken:Kk | Plunger tip for die casting and its manufacturing method |
| JP2005000954A (en) * | 2003-06-12 | 2005-01-06 | Nissan Motor Co Ltd | Injection sleeve of die casting apparatus |
| JP2012135771A (en) * | 2010-12-24 | 2012-07-19 | Toyota Motor Corp | Plunger tip |
| CN103286295A (en) * | 2013-05-14 | 2013-09-11 | 吉林大学 | Imitated self-lubricating die-casting punch with sealing rings |
| CN206882752U (en) * | 2017-04-20 | 2018-01-16 | 张斌 | A kind of self lubricity injection plunger |
-
2017
- 2017-04-20 CN CN201710259732.6A patent/CN106925743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07229595A (en) * | 1994-02-16 | 1995-08-29 | Etsuo Ando | Heat resistant sliding body and its manufacture |
| JP2001347355A (en) * | 2000-06-07 | 2001-12-18 | Taira Giken:Kk | Plunger tip for die casting and its manufacturing method |
| JP2005000954A (en) * | 2003-06-12 | 2005-01-06 | Nissan Motor Co Ltd | Injection sleeve of die casting apparatus |
| JP2012135771A (en) * | 2010-12-24 | 2012-07-19 | Toyota Motor Corp | Plunger tip |
| CN103286295A (en) * | 2013-05-14 | 2013-09-11 | 吉林大学 | Imitated self-lubricating die-casting punch with sealing rings |
| CN206882752U (en) * | 2017-04-20 | 2018-01-16 | 张斌 | A kind of self lubricity injection plunger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226713A (en) * | 2018-09-19 | 2019-01-18 | 宁波环亚机械制造有限公司 | Core-pulling slide block antifriction guide frame |
| CN109434069A (en) * | 2019-01-07 | 2019-03-08 | 盐城泰欧昌机械有限公司 | A kind of melting cup of die casting machine of plunger self-lubricating |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |