CN104534136A - Self-locking type nozzle - Google Patents
Self-locking type nozzle Download PDFInfo
- Publication number
- CN104534136A CN104534136A CN201410836370.9A CN201410836370A CN104534136A CN 104534136 A CN104534136 A CN 104534136A CN 201410836370 A CN201410836370 A CN 201410836370A CN 104534136 A CN104534136 A CN 104534136A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- valve body
- self
- locking
- sliding gasket
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0466—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a special seating surface
Abstract
The invention relates to accessory equipment of extruders, in particular to a self-locking type nozzle capable of achieving self-locking and preventing dribbling. The self-locking type nozzle comprises a rear base, the front section of the rear base is in threaded connection with a valve body, and the front section of the valve body is in threaded connection with a nozzle head. The self-locking type nozzle is characterized in that a valve element is arranged in the valve body, the surface of the valve body is provided with a kidney-shaped hole, a guide rod connected with the valve element is arranged in the kidney-shaped hole, the outside of the valve body is provided with a sliding gasket, a groove matched with the guide rod is formed in the sliding gasket, and a locking spring is arranged between the sliding gasket and the rear base. According to the self-locking type nozzle, the nozzle can be self-locked after a mold disengages from the nozzle, materials are prevented from flowing out of the nozzle, and the dribbling phenomenon is prevented.
Description
Technical field
The present invention relates to extruder accessory device, particularly a kind of can self-locking, the self-locking nozzle that prevents nozzle from salivating.
Background technique
During extruder work, nozzle and contacting dies, by material injection in mould, form product, after mould and nozzle are thrown off, although screw rod not feeding, due to the existence of the pressure in nozzle chambers, some low viscous suede material still can flow out from nozzle, produce salivation phenomenon, before carrying out next injection moulding, need operator to clear up nozzle, complex procedures, and there is security risk.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned defect, and the present invention devises a kind of nozzle of self-locking, can carry out self-locking after mould and nozzle leave to nozzle, prevents material from flowing out from nozzle, avoids the generation of salivation phenomenon.
The technical solution adopted for the present invention to solve the technical problems is as follows:
Self-locking nozzle, it comprises back seat, the leading portion of back seat has been threaded valve body, the leading portion of valve body has been threaded nozzle tip, and it is characterized in that: the inside of described valve body is provided with spool, the surface of valve body is provided with waist shaped hole, the guide rod be connected with spool is provided with in waist shaped hole, the outer installment of described valve body has sliding gasket, sliding gasket is provided with the groove coordinated with guide rod, between sliding gasket and back seat, is provided with locking spring.
The surface of described valve body is provided with the nut type ring body being convenient to load and unload.
In sum, the present invention has following beneficial effect:
The present invention is closed nozzle by spool, prevents material from flowing out from nozzle, avoids the generation of salivation phenomenon.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the present invention will become apparent.
Fig. 1 is structural representation of the present invention;
Wherein: 1 is nozzle tip, 2 is spool, and 3 is valve body, and 4 is sliding gasket, and 5 is guide rod, and 6 is locking spring, and 7 is back seat, and 71 is nut type ring body.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Self-locking nozzle as shown in Figure 1, it comprises back seat 7, the leading portion of back seat 7 has been threaded valve body 3, the leading portion of valve body 3 has been threaded nozzle tip 1, it is characterized in that: the inside of described valve body 3 is provided with spool 2, the leading portion of spool is the conical surface, can close nozzle, the surface of valve body 3 is provided with waist shaped hole, the guide rod 5 be connected with spool is provided with in waist shaped hole, namely guide rod moves and movable valve plug can be with to move in valve body, the outer installment of described valve body 3 has sliding gasket 4, sliding gasket 4 is provided with the groove coordinated with guide rod 5, locking spring 6 is provided with between sliding gasket 4 and back seat 7.
The surface of described valve body is provided with the nut type ring body 71 being convenient to load and unload, and the nut type ring body of setting is convenient to the assembling of nozzle, reduces assembling difficulty.
Working principle of the present invention:
Before injection, the pressure of the material in nozzle is lower, and locking spring acts on sliding gasket and guide rod, and guide rod promotes spool and moves forward, and now nozzle is in closed condition;
During injection, the pressure increase of nozzle interior, pressure acts on the leading portion of spool, when pressure is greater than the active force of spring, spool just Compress Spring and retreating, nozzle is opened, material injects in die cavity through nozzle, and at packing stage, nozzle is in open mode always, after pressurize terminates, the screw retreats of extruder, the pressure in nozzle reduces, when pressure is less than the active force of spring, spool moves forward under the action of the spring, closes nozzle.
In sum, the present invention has following beneficial effect:
The present invention passes through the movable realization of spool to the opening and closing of nozzle, and when extruder is not injected, the present invention can prevent material from flowing out from nozzle, avoids the generation of salivation phenomenon.
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention namely openly in scope, still can do some and revise or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (2)
1. self-locking nozzle, it comprises back seat, the leading portion of back seat has been threaded valve body, the leading portion of valve body has been threaded nozzle tip, and it is characterized in that: the inside of described valve body is provided with spool, the surface of valve body is provided with waist shaped hole, the guide rod be connected with spool is provided with in waist shaped hole, the outer installment of described valve body has sliding gasket, sliding gasket is provided with the groove coordinated with guide rod, between sliding gasket and back seat, is provided with locking spring.
2. self-locking nozzle according to claim 1, is characterized in that: the surface of described valve body is provided with the nut type ring body being convenient to load and unload.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836370.9A CN104534136A (en) | 2014-12-29 | 2014-12-29 | Self-locking type nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836370.9A CN104534136A (en) | 2014-12-29 | 2014-12-29 | Self-locking type nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104534136A true CN104534136A (en) | 2015-04-22 |
Family
ID=52849721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410836370.9A Pending CN104534136A (en) | 2014-12-29 | 2014-12-29 | Self-locking type nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534136A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106706U (en) * | 1991-11-16 | 1992-06-10 | 常州第二电子仪器厂 | Valve-type sprueless nozzle of injection moulding machine |
| RU2142361C1 (en) * | 1998-10-08 | 1999-12-10 | Воронежская государственная технологическая академия | Extrude head with adjustable profile of forming channel |
| CN2530791Y (en) * | 2002-02-08 | 2003-01-15 | 王守信 | Uniform section by-pass flow leg type extrusion plastic tube machine head |
| CN101166617A (en) * | 2005-04-27 | 2008-04-23 | 倍耐力轮胎股份公司 | Method for extruding a polymeric material and extrusion head therefor |
| CN201179486Y (en) * | 2008-04-01 | 2009-01-14 | 杜雅 | Miniature spring needle valve type nozzle structure |
| CN201900704U (en) * | 2010-12-22 | 2011-07-20 | 吉林大学珠海学院 | Needle-shaped self-locking nozzle device used on injection molding machine |
| CN102529024A (en) * | 2012-01-09 | 2012-07-04 | 东莞市凯昶德电子科技股份有限公司 | Self-locking nozzle for injection molding machine |
-
2014
- 2014-12-29 CN CN201410836370.9A patent/CN104534136A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106706U (en) * | 1991-11-16 | 1992-06-10 | 常州第二电子仪器厂 | Valve-type sprueless nozzle of injection moulding machine |
| RU2142361C1 (en) * | 1998-10-08 | 1999-12-10 | Воронежская государственная технологическая академия | Extrude head with adjustable profile of forming channel |
| CN2530791Y (en) * | 2002-02-08 | 2003-01-15 | 王守信 | Uniform section by-pass flow leg type extrusion plastic tube machine head |
| CN101166617A (en) * | 2005-04-27 | 2008-04-23 | 倍耐力轮胎股份公司 | Method for extruding a polymeric material and extrusion head therefor |
| CN201179486Y (en) * | 2008-04-01 | 2009-01-14 | 杜雅 | Miniature spring needle valve type nozzle structure |
| CN201900704U (en) * | 2010-12-22 | 2011-07-20 | 吉林大学珠海学院 | Needle-shaped self-locking nozzle device used on injection molding machine |
| CN102529024A (en) * | 2012-01-09 | 2012-07-04 | 东莞市凯昶德电子科技股份有限公司 | Self-locking nozzle for injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |