CN202702546U - Piston rod on injection molding machine - Google Patents
Piston rod on injection molding machine Download PDFInfo
- Publication number
- CN202702546U CN202702546U CN 201220371433 CN201220371433U CN202702546U CN 202702546 U CN202702546 U CN 202702546U CN 201220371433 CN201220371433 CN 201220371433 CN 201220371433 U CN201220371433 U CN 201220371433U CN 202702546 U CN202702546 U CN 202702546U
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- Prior art keywords
- piston rod
- thread
- rod body
- utility
- model
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston rod on an injection molding machine. The piston rod comprises a piston rod body, a fixed thread and a transmission thread, wherein the piston rod body comprises a first end and a second end; the fixed thread is formed at the first end of the piston rod body; and the transmission thread is formed between the first end and the second end of the piston rod body. The transmission thread is formed between the first end and the second end of the piston rod body, so that the defect that bilateral rotation cannot be realized because the diameter of an external thread is large when the piston rod on the injection molding machine is used for transmission is overcome. The piston rod has a simple structure and is very practical.
Description
Technical field
The utility model relates to the piston rod field of injection machine, is the piston rod on a kind of injection machine specifically.
Background technology
Injection machine has another name called injection (mo(u)lding) machine or injector.It is to utilize the plastic shaping grinding tool to make the main former of the plastic products of various shapes thermoplastic or thermosetting material.Be divided into vertical, horizontal, all electric.Injection moulding function heating of plastic applies high pressure to molten plastic, makes its ejaculation be full of mold cavity.
Piston rod as its name suggests, is the attaching parts of supporting piston acting, and major applications is frequent, a higher moving component of specification requirement of motion in the star parts of oil cylinder, cylinder moving.Take hydraulic jack as example, by: cylinder barrel, piston rod (cylinder rod), piston, several parts of end cap form.The quality of its crudy is the life and reliability of the whole product of impact directly.The piston rod processing request is high, and its surface roughness requires to be Ra0.4～0.8um, and is strict to axiality, wearability.
The motion thread of existing piston rod is arranged on an end of piston rod, therefore, only has unidirectional stroke, when behaviour does, not only the time slow, and efficient is low.
Therefore, the special standby piston rod that needs on a kind of injection machine is to solve problems of the prior art.
The utility model content
The purpose of this utility model is that piston rod only has the defective of single direction stroke in the prior art in order to solve, and provides the piston rod on a kind of injection machine to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
Piston rod on a kind of injection machine, comprise piston rod body, retaining thread and motion thread, described piston rod body comprises first end and the second end, described retaining thread is arranged on piston rod body first end, it is characterized in that: described motion thread is arranged on the centre position of piston rod body first end and the second end.
In the utility model, described motion thread is arranged on the centre position of piston rod body.
In the utility model, the first end of described piston rod body and the second end are respectively arranged with chamfering.
In the utility model, described chamfering is 30 ° chamfering.
In the utility model, the diameter of described retaining thread is 5mm-21mm.
In the utility model, the diameter of described retaining thread is 20mm.
In the utility model, the diameter of described motion thread is 5mm-30mm.
In the utility model, the diameter of described motion thread is 23mm.
Piston rod on a kind of injection machine of the utility model, compared with prior art, motion thread is arranged on piston rod first end and the second end centre position, make the injection machine piston rod in transmission, because external thread diameter is larger, and defective that can not bidirectional rotation is simple in structure, very practical, realize the purpose of this utility model.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Further understand and understanding for making architectural feature of the present utility model and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
Referring to Fig. 1, piston rod on a kind of injection machine, comprised connection function piston rod body 100, play the retaining thread 200 of fixation and play the motion thread 300 of transferring power effect, piston rod body 100 comprises first end 110 and the second end 120, retaining thread 200 is arranged on piston rod body 100 first ends 110, motion thread 300 is arranged on the centre position of piston rod body 100 first ends 110 and the second end 120, avoids because of large cause spacing of motion thread 300 diameters of thread.
The first end 110 of piston rod body 100 and the second end 120 are respectively arranged with chamfering 400, reach convenient purpose of installing.
Chamfering 400 is 30 ° chamfering 400, is the better embodiment of the utility model.
The diameter of retaining thread 200 is 5mm-21mm, has larger range of choice.
The diameter of retaining thread 200 is 20mm, is one of better embodiment of the utility model.
The diameter of motion thread 300 is 5mm-30mm, has larger range of choice.
The diameter of motion thread 300 is 23mm, is one of better embodiment of the utility model.
When in use, piston rod body 100 is installed in the cavity (not shown), piston rod body 100 is fixed on the ejaculation post (not shown) of injection machine by the retaining thread 200 of first end 110, motion thread 300 is arranged on the centre position of piston rod body 100, therefore when piston rod body 100 rotates forward or backwards, can not touch because motion thread 300 external diameters are large an end of cavity, that causes is spacing, the work of realization bidirectional rotation, thus reach the purpose of this utility model.
Piston rod on a kind of injection machine of the utility model, compared with prior art, motion thread 300 is arranged on piston rod body 100 first ends 110 and the second end 120 centre positions, make the injection machine piston rod in transmission, because external thread diameter is larger, and defective that can not bidirectional rotation is simple in structure, very practical, realize the purpose of this utility model.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (8)
1. the piston rod on the injection machine, comprise piston rod body, retaining thread and motion thread, described piston rod body comprises first end and the second end, described retaining thread is arranged on piston rod body first end, it is characterized in that: described motion thread is arranged on the centre position of piston rod body first end and the second end.
2. the piston rod on described a kind of injection machine according to claim 1, it is characterized in that: described motion thread is arranged on the centre position of piston rod body.
3. the piston rod on described a kind of injection machine according to claim 1, it is characterized in that: the first end of described piston rod body and the second end are respectively arranged with chamfering.
4. the piston rod on described a kind of injection machine according to claim 3, it is characterized in that: described chamfering is 30 ° chamfering.
5. the piston rod on described a kind of injection machine according to claim 1, it is characterized in that: the diameter of described retaining thread is 5mm-21mm.
6. the piston rod on described a kind of injection machine according to claim 5, it is characterized in that: the diameter of described retaining thread is 20mm.
7. the piston rod on described a kind of injection machine according to claim 1, it is characterized in that: the diameter of described motion thread is 5mm-30mm.
8. the piston rod on described a kind of injection machine according to claim 1, it is characterized in that: the diameter of described motion thread is 23mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371433 CN202702546U (en) | 2012-07-30 | 2012-07-30 | Piston rod on injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371433 CN202702546U (en) | 2012-07-30 | 2012-07-30 | Piston rod on injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202702546U true CN202702546U (en) | 2013-01-30 |
Family
ID=47582882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371433 Expired - Fee Related CN202702546U (en) | 2012-07-30 | 2012-07-30 | Piston rod on injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202702546U (en) |
-
2012
- 2012-07-30 CN CN 201220371433 patent/CN202702546U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130130 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |