CN204280837U - The driven deflector roll of super-thin plastic film - Google Patents
The driven deflector roll of super-thin plastic film Download PDFInfo
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- CN204280837U CN204280837U CN201420620505.3U CN201420620505U CN204280837U CN 204280837 U CN204280837 U CN 204280837U CN 201420620505 U CN201420620505 U CN 201420620505U CN 204280837 U CN204280837 U CN 204280837U
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- plastic film
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Abstract
The driven deflector roll of a kind of super-thin plastic film, comprise roller body and mandrel, the two ends of mandrel are respectively equipped with mandrel bearing, bearing brackett, outer ring and the bearing brackett of described mandrel bearing are fixed together, inner ring and the mandrel of described mandrel bearing are fixed together, also be provided with roller bearing more respectively at the two ends of roller body, outer ring and the roller body of roller bearing are fixed together, and the inner ring of roller bearing is also fixed together with described mandrel; Also be provided with motor, motor drives and connects described mandrel.The utility model significantly can reduce the pulling force suffered by super-thin plastic film, avoids pulling super-thin plastic film.
Description
Technical field
The utility model belongs to the technical field of plastics-production equipment, particularly relates to the driven deflector roll of a kind of super-thin plastic film.
Background technology
On plastic film production lines, plastic sheeting from after extruding to final rolling, need to be passed through many deflector rolls, these deflector rolls are classified two classes, and the first kind is initiatively deflector roll, and Equations of The Second Kind is driven deflector roll.Initiatively deflector roll self to draw the deflector roll driving film to run, and initiatively deflector roll is generally nip rolls; Driven deflector roll then refers to the main deflector roll relying on the drive of film surface static friction force and rotation.Initiatively tracting film advance is mainly played in the effect of deflector roll, and the effect of driven deflector roll is then the travel path guiding film, limits the locus of film course.Obviously, initiatively the linear resonance surface velocity of deflector roll must accurately equal film gait of march, initiatively the linear resonance surface velocity of deflector roll determines the Tensity size of film, so initiatively the rotating speed of deflector roll must accurately control, if initiatively there is deviation in the rotating speed of deflector roll, then the tension force of plastic sheeting must occur that deviation is even pulled, so high to the accuracy requirement of active deflector roll motor, and needs accurate control program.Generally speaking, initiatively deflector roll (comprising its motor) cost is high, and control accuracy (comprising its motor) requires high, and in the deflector roll of same manufacturing line, initiatively the quantity of deflector roll can not also need not be too many, and generally only have two or three, remaining deflector roll is all driven deflector roll.Existing driven deflector roll does not all have necessary electromotor.
So-called super-thin plastic film, refers to that thickness is less than the plastic sheeting of 25 microns, the plastic sheeting of commonly 12 μm ~ 25 μm.On the manufacturing line of super-thin plastic film, need the participation of driven deflector roll equally, super-thin plastic film needs to drive driven deflector roll to rotate equally; And compare with general thin, when super-thin plastic film runs through roller surface, super-thin plastic film closely will be attached to roller surface.But in the course of the work, when super-thin plastic film has just driven driven deflector roll to start rotation, or when needing the running velocity of the plastic sheeting of adjustment increasing suddenly, just need the inertia (inertia) overcoming driven deflector roll, namely film needs to apply larger pulling force (static friction force) to make it produce comparatively high acceleration to driven deflector roll, and driven deflector roll also will produce larger antagonistic force to super-thin plastic film, when antagonistic force acquires a certain degree, because plastic sheeting is ultra-thin, with regard to being easy to be stretched, gross distortion even ruptures.
Utility model content
The purpose of this utility model is overcome above-mentioned shortcoming and provide a kind of super-thin plastic film driven deflector roll, and it significantly can reduce the pulling force suffered by super-thin plastic film, avoids pulling super-thin plastic film.
Its object can realize by following scheme: the driven deflector roll of this super-thin plastic film comprises roller body and mandrel, the two ends of mandrel are respectively equipped with mandrel bearing, bearing brackett, outer ring and the bearing brackett of described mandrel bearing are fixed together, inner ring and the mandrel of described mandrel bearing are fixed together, its principal feature is, also roller bearing is provided with again respectively at the two ends of roller body, outer ring and the roller body of roller bearing are fixed together, and the inner ring of roller bearing is also fixed together with described mandrel; Also be provided with motor, motor drives and connects described mandrel.
The utility model has the following advantages and effect:
One, the utility model is provided with the bearing of two levels in same driven deflector roll, and add motor, bring following effect: in the course of the work, when super-thin plastic film steel bands moves driven deflector roll startup rotation, or when needing the running velocity improving suddenly plastic sheeting, can shift to an earlier date or start simultaneously the motor of driven deflector roll a little, motor will be with moving mandrel, the inner ring synchronous axial system of roller bearing, and the outer ring of pair roller barrel bearing is produced certain friction moment by the inner ring of roller bearing, again because the outer ring of roller bearing and roller body fixedly connect together, therefore this friction moment can assist super-thin plastic film strip action roller cylinder body to start rotation, or assist to drive roller body to improve speed, therefore the pulling force (antagonistic force) suffered by super-thin plastic film is significantly reduced, avoid pulling super-thin plastic film.
Two, compare with the motor of initiatively deflector roll, the control accuracy of the utility model to the speed of driven deflector roll motor, run up time, rundown time requires much lower.Specifically, also have bearing between the mandrel of driven deflector roll and roller body, even if therefore the mandrel speed of driven deflector roll is a bit high or lower, problem is all little.Such as, even if the mandrel speed of driven deflector roll is seriously greater than the speed of roller body, above-mentioned friction moment also can not increase considerably to too large, even can not increase (its reason is: two relative motions and exist friction object, after velocity contrast acquires a certain degree, friction force between them just reaches the limit values, and can't friction force be made again to increase along with the increase of velocity contrast).Based on as a same reason, the utility model requires also very low to the control accuracy of driven deflector roll motor starting time, rundown time.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of a kind of specific embodiment of the utility model.
Detailed description of the invention
Shown in Fig. 1, the driven deflector roll of this super-thin plastic film comprises roller body 1 and mandrel 2, the two ends of mandrel 2 are respectively equipped with mandrel bearing 3, bearing brackett 4, and outer ring and the bearing brackett 4 of described mandrel bearing 3 are fixed together, and inner ring and the mandrel 2 of described mandrel bearing 3 are fixed together.Also be respectively equipped with roller bearing 5 at the two ends of roller body 1, outer ring and the roller body 1 of roller bearing 5 are fixed together, and the inner ring of roller bearing 5 and also described mandrel 2 are fixed together; Also be provided with motor 6, motor 6 is connected by coupler 7 with described mandrel 2, drives mandrel 2 to rotate thus.
Claims (1)
1. the driven deflector roll of super-thin plastic film, comprise roller body and mandrel, the two ends of mandrel are respectively equipped with mandrel bearing, bearing brackett, outer ring and the bearing brackett of described mandrel bearing are fixed together, inner ring and the mandrel of described mandrel bearing are fixed together, it is characterized in that: be also provided with roller bearing more respectively at the two ends of roller body, outer ring and the roller body of roller bearing are fixed together, and the inner ring of roller bearing is also fixed together with described mandrel; Also be provided with motor, motor drives and connects described mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620505.3U CN204280837U (en) | 2014-10-25 | 2014-10-25 | The driven deflector roll of super-thin plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420620505.3U CN204280837U (en) | 2014-10-25 | 2014-10-25 | The driven deflector roll of super-thin plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204280837U true CN204280837U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420620505.3U Active CN204280837U (en) | 2014-10-25 | 2014-10-25 | The driven deflector roll of super-thin plastic film |
Country Status (1)
| Country | Link |
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| CN (1) | CN204280837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348732A (en) * | 2021-12-30 | 2022-04-15 | 珠海华冠科技股份有限公司 | Roller device and control method thereof |
-
2014
- 2014-10-25 CN CN201420620505.3U patent/CN204280837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348732A (en) * | 2021-12-30 | 2022-04-15 | 珠海华冠科技股份有限公司 | Roller device and control method thereof |
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