CN201573316U - Connection structure for nozzle and front charging barrel of injection molding machine - Google Patents
Connection structure for nozzle and front charging barrel of injection molding machine Download PDFInfo
- Publication number
- CN201573316U CN201573316U CN2009202027200U CN200920202720U CN201573316U CN 201573316 U CN201573316 U CN 201573316U CN 2009202027200 U CN2009202027200 U CN 2009202027200U CN 200920202720 U CN200920202720 U CN 200920202720U CN 201573316 U CN201573316 U CN 201573316U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- charging barrel
- front charging
- preceding barrel
- barrel
- 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 - Lifetime
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a connection structure for a nozzle and a front charging barrel of an injection molding machine, wherein the nozzle and the front charging barrel are in threaded connection. The connection structure is characterized in that an unthreaded nozzle shaft is mounted at the threaded end of the nozzle, an unthreaded front charging barrel hole is formed at the tail end of a front charging barrel screw hole, and the nozzle shaft and the front charging barrel hole are matched with each other. The utility model can prevent the screw failure at the joint of the nozzle and the front charging barrel, thereby greatly reducing the maintenance and production costs.
Description
Technical field
The utility model relates to a kind of syndeton that is used for injection machine nozzle and preceding barrel, has solved the problem of ridge profile corrosion on original basis that is threaded by improvement.
Background technology
Generally, in the plastic-injection moulding machine injection process, the connection of nozzle and preceding barrel is designed to be threaded, and for preventing in the injection process under the high pressure effect of molten plastic leakage is arranged, adopts end face seal, referring to Fig. 1.And during actual production, under the high pressure P effect of plastics, cause nozzle 1 ' to contact end face with preceding barrel 2 ' and produce distortion, make the micro melting plastics enter threaded portion 3 ', corrosion ridge profile by distortion place; Because under the pressure P effect, nozzle 1 ' produces the alternation active force with preceding barrel 2 ' connecting thread again, makes the antagonization of screw thread corrosion or curls up the limit and lost efficacy; When nozzle 1 ' or the 2 ' damage of preceding barrel, need change nozzle 1 ' and preceding barrel 2 ' simultaneously, not only increased maintenance cost but also increase maintenance time, the client is caused shutdown loss.
The utility model content
Technical problem to be solved in the utility model is to overcome deficiency of the prior art and provide a kind of nozzle and preceding barrel place connecting thread of having prevented to lose efficacy, thereby greatly reduces the syndeton that is used for injection machine nozzle and preceding barrel of maintenance and production cost.
The technical scheme in the invention for solving the above technical problem is: this is used for the syndeton of injection machine nozzle and preceding barrel, nozzle and preceding barrel are by being threaded, it is characterized in that: described nozzle threads one end is one section nozzle shaft of not establishing screw thread, preceding barrel screw tail end is one section preceding barrel hole of not establishing screw thread, and preceding barrel hole cooperates with nozzle shaft.
The length that the length in barrel hole is longer than nozzle shaft before described in the utility model.
The utility model compared with prior art has the following advantages: when nozzle contacts with preceding barrel end face when compressing, played end face seal, simultaneously because the cooperation in nozzle shaft and preceding barrel hole, also played simultaneously certain sealing function, be unlikely to molten plastic and infiltrate the end of thread, thereby solved the problem of ridge profile corrosion, thoroughly eliminated the drawback on the antagonization or the limit of curling up.
Description of drawings
Fig. 1 is the prior art structural representation.
Fig. 2 is the utility model structural representation.
The specific embodiment
Referring to Fig. 2, nozzle 1 and preceding barrel 2 are by being threaded, and preceding barrel 2 is arranged on the barrel 3, and screw thread one end on the nozzle 1 is one section nozzle shaft 4 of not establishing screw thread, preceding barrel screw tail end is one section preceding barrel hole 5 of not establishing screw thread, and preceding barrel hole 5 cooperates with nozzle shaft 4.The length that the length in preceding barrel hole 5 is longer than nozzle shaft 4 slightly.
The utility model design has prevented that nozzle and preceding barrel place from connecting thread failure, thereby has greatly reduced maintenance cost and client's production.Be provided with a bit of nozzle shaft 4 at the nozzle threads afterbody, and be provided with one section preceding barrel hole 5 that cooperates with nozzle shaft 4 at preceding barrel screw tail end.When nozzle 1 contacts with preceding barrel 2 end faces when compressing, played end face seal, simultaneously because the cooperation in nozzle shaft 4 and preceding barrel hole 5, also played simultaneously certain sealing function, be unlikely to molten plastic and infiltrate threaded portion 6, thereby solved the problem of ridge profile corrosion, thoroughly eliminated the drawback on the antagonization or the limit of curling up.
Claims (2)
1. syndeton that is used for injection machine nozzle and preceding barrel, nozzle and preceding barrel are by being threaded, it is characterized in that: described nozzle threads one end is one section nozzle shaft of not establishing screw thread, and preceding barrel screw tail end is one section preceding barrel hole of not establishing screw thread, and preceding barrel hole cooperates with nozzle shaft.
2. the syndeton that is used for injection machine nozzle and preceding barrel according to claim 1 is characterized in that: the length that the length in barrel hole is longer than nozzle shaft before described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202027200U CN201573316U (en) | 2009-12-16 | 2009-12-16 | Connection structure for nozzle and front charging barrel of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202027200U CN201573316U (en) | 2009-12-16 | 2009-12-16 | Connection structure for nozzle and front charging barrel of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201573316U true CN201573316U (en) | 2010-09-08 |
Family
ID=42693196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202027200U Expired - Lifetime CN201573316U (en) | 2009-12-16 | 2009-12-16 | Connection structure for nozzle and front charging barrel of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201573316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084544A (en) * | 2014-07-18 | 2014-10-08 | 中山市恒成球墨铸铁铸造有限公司 | Casting technology of injection head of injection molding machine |
-
2009
- 2009-12-16 CN CN2009202027200U patent/CN201573316U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084544A (en) * | 2014-07-18 | 2014-10-08 | 中山市恒成球墨铸铁铸造有限公司 | Casting technology of injection head of injection molding machine |
| CN104084544B (en) * | 2014-07-18 | 2017-12-15 | 广东恒成科技股份有限公司 | A kind of injection machine penetrates the casting technique of head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20121127 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |