CN102310559A - Double hardness haul-off roll - Google Patents
Double hardness haul-off roll Download PDFInfo
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- CN102310559A CN102310559A CN201110278649A CN201110278649A CN102310559A CN 102310559 A CN102310559 A CN 102310559A CN 201110278649 A CN201110278649 A CN 201110278649A CN 201110278649 A CN201110278649 A CN 201110278649A CN 102310559 A CN102310559 A CN 102310559A
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- hardness
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- colloid
- pinch rolls
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a double hardness haul-off roll which comprises a cylindrical revolving body. The invention is characterized in that: two annular rubber matrixes with different hardness are alternatively coated over the revolving body, wherein, an annular low-hardness rubber matrix is made of Buna-N rubber and an annular high-hardness rubber matrix is made of Buna-N rubber. The advantages of the invention are as follows: when a tubular film passes through a haul-off pair roller, since the folding part of the membrane body of the film walks on the soft rubber matrix of the haul-off roll during the whole process of hauling, no pressing dead space in the folding part of the membrane body of the film occurs, thereby enhancing film quality, reducing production cost and avoiding cracking in the folding part during usage of the film.
Description
Technical field
The invention belongs to the plastic film blowing machine technical field, particularly relate to a kind of pair of hardness carry-over pinch rolls.
Background technology
Plastic film blowing machine in the known technology; Be the high-low pressure plastics to be passed through heating, extruding back fusion by extruder; Use compressed air to blow out be cylindrical membrane when being extruded by die head, this cylindrical membrane upper end is delivered to wrap-up with the film lifting and carries out rolling clamp roll is moving by last traction smooth roll and traction rubber roll again.It is Shao Shi A75 °-85 ° rubber rollers that traditional last carry-over pinch rolls generally adopt hardness; Because after film draws rubber roll through harder going up; Make the film folded edges press tension, be easy to generate the folding broken line that kills, and then cause film cracking phenomena in use to occur; Not only reduce film quality, but also strengthened percent defective and production cost.
Summary of the invention
The present invention for solve the technical problem that exists in the known technology provide a kind of simple in structure, can avoid the film folded edges because of the folding two hardness carry-over pinch rolls that cracking phenomena, raising film quality occur that kill.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
Two hardness carry-over pinch rolls comprise cylindrical revolving body, it is characterized in that: the outer alternate colloid that is coated with two kinds of hardness in the form of a ring of said revolving body, and wherein the ring-type low durometer gel is processed for the butadiene acrylonitrile rubber material, and said ring-type high rigidity colloid is processed for the butadiene acrylonitrile rubber material.
The present invention can also adopt following technical scheme:
Said pair of hardness carry-over pinch rolls specifically are constructed as follows: at first the external packets of cylindrical revolving body 1 is wrapped hardness for the butadiene acrylonitrile rubber of Shao Er Shi A70o-85o and vulcanize, and after the cooling, rough turn shaping; Alternately on high rigidity butadiene acrylonitrile rubber colloid then leave required cannelure, its hardness of secondary parcel be the softness butadiene acrylonitrile rubber colloid of Shao Er Shi A45o-55o in described cannelure, carries out post-cure behind the parcel, finish turning then, and grinding is at last processed.
The ring width of said ring-type low durometer gel is respectively 240mm and 80mm.
The ring width of said ring-type high rigidity colloid is respectively 730mm, 45mm and 20mm.
Advantage and good effect that the present invention has are: because the present invention adopts technique scheme; Promptly according to the film folded size; The colloid of two kinds of hardness of alternate coating on carry-over pinch rolls, when cylindrical membrane through traction during pair roller walk because the folded part of film film body is in distraction procedure on the flexible glue body of carry-over pinch rolls all the time; So the folding position of film film body can not produce and kill the angle; And then improved the quality of film, and reduced production cost, avoided film the phenomenon of cracking in use to occur from folding position.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, revolving body; 2, ring-type low durometer gel; 3, ring-type high rigidity colloid.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1; Two hardness carry-over pinch rolls comprise cylindrical revolving body 1, and said cylindrical revolving body is outer according to the alternate colloid that is coated with two kinds of hardness in the form of a ring of film folded size; Wherein ring-type low durometer gel 2 is processed for the butadiene acrylonitrile rubber material, and ring-type high rigidity colloid 3 is processed for the butadiene acrylonitrile rubber material.Said pair of hardness carry-over pinch rolls specifically are constructed as follows: at first to wrap hardness be the butadiene acrylonitrile rubber of Shao Shi A70o-85o and vulcanize with the external packets of cylindrical revolving body 1; After the cooling; Rough turn shaping, in the present embodiment, the hardness of ring-type high rigidity colloid 3 is preferably Shao Shi A80 °.Alternately on high rigidity butadiene acrylonitrile rubber colloid then leave required a plurality of cannelures; Its hardness of secondary parcel is the softness butadiene acrylonitrile rubber colloid of Shao Shi A45o-55o in described cannelure; Carry out post-cure behind the parcel, in the present embodiment, the hardness of ring-type low durometer gel 2 is preferably Shao Shi A50 °.Finish turning then, two hardness carry-over pinch rolls are processed in last grinding.According to the film folded size; The ring width of said cylindrical revolving body 1 core ring-type low durometer gel 2 is 240mm; The ring width of said ring-type high rigidity colloid 3 is 730mm; The ring width of the ring-type low durometer gel 2 at all the other positions is 80mm, and the ring width of ring-type high rigidity colloid 3 is 45mm and 20mm.
Claims (4)
1. two hardness carry-over pinch rolls; Comprise cylindrical revolving body; It is characterized in that: the outer alternate colloid that is coated with two kinds of hardness in the form of a ring of said revolving body, wherein the ring-type low durometer gel is processed for the butadiene acrylonitrile rubber material, and said ring-type high rigidity colloid is processed for the butadiene acrylonitrile rubber material.
2. according to claim 1 pair of hardness carry-over pinch rolls; It is characterized in that: said pair of hardness carry-over pinch rolls specifically are constructed as follows: at first to wrap hardness be the butadiene acrylonitrile rubber of Shao Shi A70o-85o and vulcanize with the external packets of cylindrical revolving body 1; After the cooling, rough turn shaping; Alternately on high rigidity butadiene acrylonitrile rubber colloid then leave required cannelure, its hardness of secondary parcel is the softness butadiene acrylonitrile rubber colloid of Shao Shi A45o-55o in described cannelure, carries out post-cure behind the parcel, finish turning then, and last grinding is processed.
3. according to claim 2 pair of hardness carry-over pinch rolls, it is characterized in that: the ring width of said ring-type low durometer gel is respectively 240mm and 80mm.
4. according to claim 2 pair of hardness carry-over pinch rolls is characterized in that: the ring width of said ring-type high rigidity colloid is respectively 730mm, 45mm and 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110278649.6A CN102310559B (en) | 2011-09-20 | 2011-09-20 | Double hardness haul-off roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110278649.6A CN102310559B (en) | 2011-09-20 | 2011-09-20 | Double hardness haul-off roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102310559A true CN102310559A (en) | 2012-01-11 |
| CN102310559B CN102310559B (en) | 2014-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110278649.6A Expired - Fee Related CN102310559B (en) | 2011-09-20 | 2011-09-20 | Double hardness haul-off roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102310559B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772782A (en) * | 2015-04-09 | 2015-07-15 | 河南职业技术学院 | Control system of circle cutting machine |
| CN107825682A (en) * | 2012-08-07 | 2018-03-23 | 莱芬豪舍机械制造两合公司 | Film blowing device, produce the method for blown film band and the film using its production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059119A (en) * | 1991-09-10 | 1992-03-04 | 山东省滕州市胶轴厂 | A kind of Heat-resisting rubber roller |
| CN101063845A (en) * | 2006-04-28 | 2007-10-31 | 住友橡胶工业株式会社 | Rubber member and developing roller composed of rubber member |
| CN101260580A (en) * | 2007-03-09 | 2008-09-10 | 天津市靖隆纺织橡胶有限公司 | Treatment-free rubber-roller and manufacturing method thereof |
| CN101813123A (en) * | 2010-05-07 | 2010-08-25 | 山东大学 | Rubber covered roll and production method thereof |
| KR100994210B1 (en) * | 2008-10-07 | 2010-11-12 | 김수현 | Rubber roller for industrial purpose |
| CN202225438U (en) * | 2011-09-20 | 2012-05-23 | 天津市天塑科技集团有限公司第二塑料制品厂 | Double-hardness traction roller |
-
2011
- 2011-09-20 CN CN201110278649.6A patent/CN102310559B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059119A (en) * | 1991-09-10 | 1992-03-04 | 山东省滕州市胶轴厂 | A kind of Heat-resisting rubber roller |
| CN101063845A (en) * | 2006-04-28 | 2007-10-31 | 住友橡胶工业株式会社 | Rubber member and developing roller composed of rubber member |
| CN101260580A (en) * | 2007-03-09 | 2008-09-10 | 天津市靖隆纺织橡胶有限公司 | Treatment-free rubber-roller and manufacturing method thereof |
| KR100994210B1 (en) * | 2008-10-07 | 2010-11-12 | 김수현 | Rubber roller for industrial purpose |
| CN101813123A (en) * | 2010-05-07 | 2010-08-25 | 山东大学 | Rubber covered roll and production method thereof |
| CN202225438U (en) * | 2011-09-20 | 2012-05-23 | 天津市天塑科技集团有限公司第二塑料制品厂 | Double-hardness traction roller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825682A (en) * | 2012-08-07 | 2018-03-23 | 莱芬豪舍机械制造两合公司 | Film blowing device, produce the method for blown film band and the film using its production |
| CN107825682B (en) * | 2012-08-07 | 2020-11-27 | 莱芬豪舍有限责任两合公司机器制造厂 | Film blowing apparatus, method of producing film blowing tape, and film produced using the same |
| CN104772782A (en) * | 2015-04-09 | 2015-07-15 | 河南职业技术学院 | Control system of circle cutting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102310559B (en) | 2014-03-12 |
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Granted publication date: 20140312 Termination date: 20200920 |