CN102310559B - Double hardness haul-off roll - Google Patents
Double hardness haul-off roll Download PDFInfo
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- CN102310559B CN102310559B CN201110278649.6A CN201110278649A CN102310559B CN 102310559 B CN102310559 B CN 102310559B CN 201110278649 A CN201110278649 A CN 201110278649A CN 102310559 B CN102310559 B CN 102310559B
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- hardness
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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 plastic film blowing machine technical field, particularly relate to a kind of pair of hardness traction roller.
Background technology
Plastic film blowing machine in known technology,, by extruder, high-low pressure plastics are passed through to heating, the rear melting of extruding, while being extruded by die head, with compressed air, blow out as cylindrical membrane, this cylindrical membrane upper end is promoted film to be delivered to wrap-up and to carry out rolling clamp roll is moving by upper traction smooth roll and traction rubber roll again.It is the rubber rollers of Shao Shi A75 °-85 ° that traditional upper carry-over pinch rolls generally adopt hardness, because film is by after harder upper traction rubber roll, make film folded edge press to obtain tension, easily produce the folding broken line killing, and then cause film in use to occur cracking phenomena, 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 existing in known technology provide a kind of simple in structure, can avoid film folded edge because of the folding two hardness traction rollers that occur cracking phenomena, raising film quality that kill.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is:
Two hardness traction rollers, 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 described revolving body, and wherein ring-type low durometer gel is that NBR material is made, described ring-type high rigidity colloid is that NBR material is made.
The present invention can also adopt following technical scheme:
Described pair of hardness traction roller is specifically constructed as follows: the NBR that is first A70 °-85 ° of Shao Er Shi by the good hardness of the outer wrap of cylindrical revolving body 1 also vulcanizes, cooling after, rough turn shaping; Then alternately on high rigidity NBR colloid output required cannelure, in described cannelure, secondary wraps up its hardness for the softness NBR colloid of A45 °-55 ° of Shao Er Shi, carries out post-cure after parcel, finish turning then, and last grinding is made.
The ring width of described ring-type low durometer gel is respectively 240mm and 80mm.
The ring width of described 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, according to film folded size, the colloid of alternate coated two kinds of hardness on carry-over pinch rolls, when cylindrical membrane passes through traction pair roller, because the folded part of film film body is walked on the flexible glue body in carry-over pinch rolls all the time in distraction procedure, therefore the folding position of film film body can not produce and kill angle, and then improved the quality of film, reduce production cost, avoided film in use from folding position, to occur the phenomenon of cracking.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In 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, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, two hardness traction rollers, comprise cylindrical revolving body 1, and described 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 made for NBR material, and ring-type high rigidity colloid 3 is made for NBR material.Described pair of hardness traction roller is specifically constructed as follows: by the good hardness of the outer wrap of cylindrical revolving body 1, be first the NBR of Shao Shi A70 °-85 ° and vulcanize, after cooling, rough turn shaping, in the present embodiment, the hardness of ring-type high rigidity colloid 3 is preferably Shao Shi A80 °.Then alternately on high rigidity NBR colloid output required a plurality of cannelures, in described cannelure, to wrap up its hardness be the softness NBR colloid of Shao Shi A45 °-55 ° to secondary, after parcel, carry out post-cure, in the present embodiment, the hardness of ring-type low durometer gel 2 is preferably Shao Shi A50 °.Then finish turning, two hardness traction rollers are made in last grinding.According to film folded size, the ring width of described cylindrical revolving body 1 core ring-type low durometer gel 2 is 240mm, the ring width of described 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 (3)
1. a two hardness traction roller, 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 described revolving body, wherein ring-type low durometer gel is that NBR material is made, described ring-type high rigidity colloid is that NBR material is made;
Described pair of hardness traction roller is specifically constructed as follows: by the good hardness of the outer wrap of cylindrical revolving body 1, be first the NBR of Shao Shi A70 °-85 ° and vulcanize, cooling after, rough turn shaping; Then alternately on high rigidity NBR colloid output required cannelure, in described cannelure, to wrap up its hardness be the softness NBR colloid of Shao Shi A45 °-55 ° to secondary, carries out post-cure after parcel, finish turning then, and last grinding is made.
2. according to claim 1 pair of hardness traction roller, is characterized in that: the ring width of described ring-type low durometer gel is respectively 240mm and 80mm.
3. according to claim 1 pair of hardness traction roller, is characterized in that: the ring width of described 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 CN102310559A (en) | 2012-01-11 |
| CN102310559B true CN102310559B (en) | 2014-03-12 |
Family
ID=45424317
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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012015462A1 (en) * | 2012-08-07 | 2014-02-13 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Blown film plant, process for producing a blown film web and film produced therewith |
| CN104772782A (en) * | 2015-04-09 | 2015-07-15 | 河南职业技术学院 | Control system of circle cutting machine |
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 |
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| Publication number | Publication date |
|---|---|
| CN102310559A (en) | 2012-01-11 |
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Granted publication date: 20140312 Termination date: 20200920 |