CN203331410U - Rotary traction device for film blowing machine - Google Patents

Rotary traction device for film blowing machine Download PDF

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Publication number
CN203331410U
CN203331410U CN2013203668148U CN201320366814U CN203331410U CN 203331410 U CN203331410 U CN 203331410U CN 2013203668148 U CN2013203668148 U CN 2013203668148U CN 201320366814 U CN201320366814 U CN 201320366814U CN 203331410 U CN203331410 U CN 203331410U
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China
Prior art keywords
support
deflector roll
anomalous movement
horizontal anomalous
movement deflector
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CN2013203668148U
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Chinese (zh)
Inventor
林梓生
温佳彬
陈俊鸿
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Guangdong Jinming Machinery Co Ltd
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Guangdong Jinming Machinery Co Ltd
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Abstract

The utility model relates to a rotary traction device for a film blowing machine. The rotary traction device comprises a traction clamping roller, a first horizontal movable guide roller, a second horizontal movable guide roller, a third horizontal movable guide roller, a fourth horizontal movable guide roller and a horizontal fixed guide roller, wherein a transverse top beam is fixed above the four horizontal movable guide rollers; a vertical central rod is fixedly lifted below the transverse top beam; a clamping roller bracket, a first bracket, a second bracket, a third bracket and a fourth bracket are connected and arranged on the central rod and can rotate horizontally around the central rod; the clamping roller bracket and the first bracket are fixedly connected together to rotate synchronously; the rotary traction device is also provided with a first servo motor and a second servo motor; the first servo motor is connected with the first bracket and the second bracket through a first gear transmission mechanism in a driving manner; the second servo motor is connected with the third bracket and the fourth bracket through a second gear transmission mechanism in a driving manner. The rotary traction device is small in size, and can effectively prevent films from being folded, thus improving the winding quality.

Description

The rotary tractor of inflation film manufacturing machine
Technical field
The utility model relates to a kind of film blowing device of producing plastic sheeting, is specifically related to a kind of rotary tractor of inflation film manufacturing machine.
Background technology
When the tradition inflation film manufacturing machine is produced, plastic raw materials is extruded by head after melting, be blow molded into cylindric film bubble, then the traction nip rolls by herringbone clamping plate and draw-gear flattens film to become bilayer film, bilayer film is walked around horizontal stationary guide roller, finally by winding device, carry out rolling, the installation direction of horizontal stationary guide roller is parallel to the winding device central axis.Because the cylindric film bubble each point thickness of extruding from mould head of blow-moulding machine is difficult to definitely evenly, and this thickness deviation belongs to Systematic Errors, if the point in a certain orientation of film bubble is partially thick, follow-up film bubble out continues partially thick in this orientation, otherwise, if the point in a certain orientation of film bubble is partially thin, follow-up film bubble out continues partially thin in this orientation, so film after above-mentioned traditional approach rolling, thickness point can add up stack gradually in the same position of coiled material, make the film volume thickness after rolling seriously inhomogeneous, produce quick-fried muscle phenomenon, rolling is of poor quality.
In order to overcome above-mentioned shortcoming, people have designed rotary tractor, making to draw nip rolls rotates around the head central axis, drawing nip rolls rotates with respect to mould head of blow-moulding machine (film bubble), the distributing position of film thickness point on coiled material just presents the distributed wave state like this, axial dispersion along coiled material comes, the rolling accumulation problem that has solved preferably thus the thickness Systematic Errors and brought, the thickness point that makes film coiled material axially on be uniformly distributed, can not accumulate at same position, reach the smooth purpose of rolling.
In above-mentioned rotation traction traction structure, for the film on rotating traction nip rolls can stably be delivered on fixed horizontal stationary guide roller, must between traction nip rolls and horizontal stationary guide roller, the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll be set, from vertical position, the vertical position of the 4th horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the first horizontal anomalous movement deflector roll reduces successively, periphery at traction nip rolls and four horizontal anomalous movement deflector rolls also is provided with mobilizable annular rotary support, described traction nip rolls and four horizontal anomalous movement deflector rolls are arranged on annular rotary support, driving annular rotary support by servomotor rotates around the head central axis, the annular rotary support drives the traction nip rolls by gear drive, the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll is around head central axis rotation (the head central axis is overlapping with the central axis of film bubble in theory), wherein draw nip rolls and the first horizontal anomalous movement deflector roll synchronously rotates, and the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the rotational angle size of the 4th horizontal anomalous movement deflector roll is 4:3:2:1, during work, plastic sheeting is after the traction nip rolls, walk around successively the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll, arrive stationary guide roller, like this, no matter the traction nip rolls turns to any angle, when plastic sheeting arrives horizontal stationary guide roller in theory, its direction of transfer is all perpendicular to horizontal stationary guide roller, realize smoothly rolling.
But existing above-mentioned rotary tractor still has the following disadvantages: 1, the installation site of motor and drive path are limited by annular rotary support, usually by a motor that is positioned at annular rotary support outside, drive annular rotary support to rotate, driving each horizontal anomalous movement deflector roll by annular rotary support by gear train assembly again rotates around the head central axis, but because there is gap in gear, each horizontal anomalous movement deflector roll just, during reversion, just, the angle of reversion can not accurately be consistent, while causing plastic sheeting to pass through horizontal stationary guide roller actually, its direction of transfer can not be guaranteed perpendicular to horizontal stationary guide roller, and then cause two ends, film left and right total length not wait, make nylon film etc. require high film the problems such as wrinkling easily to occur, affect normal rolling.In prior art, when this problem occurring, lack online non-stop-machine control measures, can only shut down and be adjusted, very trouble; 2, need to be through annular rotary support due to film, so annular rotary support size is large, and annular rotary support needs back and forth to drive, so machine volume is huge, power consumption is many.
The utility model content
The purpose of this utility model is to overcome above-mentioned shortcoming and rotary tractor that a kind of inflation film manufacturing machine is provided, and its volume is little, and can effectively avoid the film fold, improves the rolling quality.
Its purpose can realize by following scheme: the rotary tractor of this inflation film manufacturing machine comprises traction nip rolls, the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll, horizontal stationary guide roller, from vertical position, the vertical position of the 4th horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the first horizontal anomalous movement deflector roll, traction nip rolls reduces successively, the two ends of traction nip rolls are arranged on the nip rolls support, the two ends of the first horizontal anomalous movement deflector roll are arranged on the first support, the two ends of the second horizontal anomalous movement deflector roll are arranged on the second support, the two ends of the 3rd horizontal anomalous movement deflector roll are arranged on the 3rd support, the two ends of the 4th horizontal anomalous movement deflector roll are arranged on the 4th support, it is characterized in that, be fixed with horizontal back timber above four horizontal anomalous movement deflector rolls, fixedly be lifted with a vertical center-pole below horizontal back timber, the central axis of center-pole and the central axis of film blowing machine head are located along the same line, described nip rolls support, the first support, the second support, the 3rd support, the 4th support is mounted on center-pole and can horizontally rotates around center-pole, the nip rolls support is fixed together with the first support and synchronizes rotation, also be provided with the first servomotor, the second servomotor, the first servomotor drive to connect the first support, the second support by the first gear drive, and 0.75 times of the rotational angle of the second support under the first driven by servomotor rotational angle that is the first support, the second servomotor drive to connect the 3rd support, the 4th support by the second gear drive, and 0.5 times of the rotational angle of the 4th support under the second driven by servomotor rotational angle that is the 3rd support, the first servomotor is provided with the first encoder, and the second servomotor is provided with the second encoder, also be provided with central controller, the first servomotor, the second servomotor connect respectively central controller.
The utlity model has following advantage and effect:
One, the utility model is suspended in the fixed support below owing to drawing nip rolls, the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll by center-pole, therefore with traditional structure, compare, can save heavy annular rotary support, needn't drive heavy annular rotary support reciprocating rotation, not only make machine volume dwindle, and save energy, save the required metal steel of making apparatus.
Two, because each root horizontal anomalous movement deflector roll does not need to rely on annular rotary support transmission, the installation site of motor and the kind of drive are not limited by annular rotary support, therefore mounting position of motor of the present utility model and drive path can arrange flexibly, and then the utility model can arrange two motors, two motors drive respectively the first horizontal anomalous movement deflector roll and the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll and the 4th horizontal anomalous movement deflector roll.
Three, because the utility model arranges two servomotors, and two servomotors are respectively equipped with encoder, thereby the rotational angle ratio of first horizontal anomalous movement deflector roll and the 4th horizontal anomalous movement deflector roll can be finely tuned by central controller, its effect is: the online production process, if the film two ends overall length from the traction nip rolls to horizontal stationary guide roller has error (this is the basic reason that causes the film fold), can be by revising the synchronous proportional of two servomotors, finely tune the rotational angle ratio of the first horizontal anomalous movement deflector roll and the 4th horizontal anomalous movement deflector roll, film two ends overall length from the traction nip rolls to horizontal stationary guide roller is equated, while guaranteeing that film passes through horizontal stationary guide roller actually, its direction of transfer is perpendicular to horizontal stationary guide roller, avoid thus the film fold, improve the rolling quality.
The accompanying drawing explanation
Fig. 1 is the structure of a kind of embodiment of the utility model and uses view.
Fig. 2 is the floor projection position relationship schematic diagram of the first horizontal anomalous movement deflector roll in Fig. 1, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll, horizontal stationary guide roller.
Fig. 3 is that structure shown in Fig. 2 is in the view of each horizontal anomalous movement deflector roll after center-pole turns an angle.
Fig. 4 is transfer path and the direction schematic diagram of film between the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll in Fig. 3.
Fig. 5 is transfer path and the direction schematic diagram of film between the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll, horizontal stationary guide roller in Fig. 3.
The specific embodiment
Shown in Fig. 1, the rotary tractor of this inflation film manufacturing machine comprises traction nip rolls 5, the first horizontal anomalous movement deflector roll 1, the second horizontal anomalous movement deflector roll 2, the 3rd horizontal anomalous movement deflector roll 3, the 4th horizontal anomalous movement deflector roll 4, horizontal stationary guide roller 6, from vertical position, the vertical position of the 4th horizontal anomalous movement deflector roll 4, the 3rd horizontal anomalous movement deflector roll 3, the second horizontal anomalous movement deflector roll 2, the first horizontal anomalous movement deflector roll 1, traction nip rolls 5 reduces successively, and the 4th horizontal anomalous movement deflector roll 4, the second horizontal anomalous movement deflector roll 2 are near the central axis m of film blowing machine heads; The two ends of traction nip rolls 5 are arranged on nip rolls support 51, the two ends of the first horizontal anomalous movement deflector roll 1 are arranged on the first support 11, the two ends of the second horizontal anomalous movement deflector roll 2 are arranged on the second support 21, the two ends of the 3rd horizontal anomalous movement deflector roll 3 are arranged on the 3rd support 31, and the two ends of the 4th horizontal anomalous movement deflector roll 4 are arranged on the 4th support 41.Be fixed with horizontal back timber 71 above four horizontal anomalous movement deflector rolls, laterally the two ends of back timber 71 are fixedly mounted on frame 73, fixedly be lifted with a vertical center-pole 72 below horizontal back timber, the central axis m of the central axis of center-pole 72 and film blowing machine head is located along the same line, and described nip rolls support 51, the first support 11, the second support 21, the 3rd support 31, the 4th support 41 are mounted on center-pole 72 and can horizontally rotate around center-pole; Nip rolls support 51 is fixed together with the first support 11 and synchronizes rotation; Also be provided with the first servomotor 91, the second servomotor 92, the first servomotor 91 drives and connects the first support 11, the second support 21 by the first gear drive 93, and the first support 11 is different with the gearratio of the second support 21,0.75 times of the rotational angle that the rotational angle of the second support 21 under the first driven by servomotor is the first support 11; The second servomotor 92 drives and connects the 3rd support 31, the 4th support 41 by the second gear drive 94, and the 3rd support 31 is different with the gearratio of the 4th support 41,0.5 times of the rotational angle that the rotational angle of the 4th support 41 under the second driven by servomotor is the 3rd support 31; The first servomotor 91 is provided with the first encoder, and the second servomotor 92 is provided with the second encoder; Also be provided with central controller, the first servomotor, the second servomotor connect respectively central controller.
Fig. 1, shown in Fig. 2, when original state, traction nip rolls 5, the first horizontal anomalous movement deflector roll 1, the second horizontal anomalous movement deflector roll 2, the 3rd horizontal anomalous movement deflector roll 3, the 4th horizontal anomalous movement deflector roll 4, horizontal stationary guide roller 6 is parallel to each other, film bubble 81 is successively after traction nip rolls 5, become bilayer film 82, bilayer film 82 is walked around the first horizontal anomalous movement deflector roll 1 successively, the second horizontal anomalous movement deflector roll 2, the 3rd horizontal anomalous movement deflector roll 3, the 4th horizontal anomalous movement deflector roll 4, horizontal stationary guide roller 6, traffic direction during through horizontal stationary guide roller 6 is perpendicular to horizontal stationary guide roller 6, finally by rolling-up mechanism 83 rollings.
In wrapup procedure, at the first servomotor 91, under the second servomotor 92 drives, traction nip rolls 5, the first horizontal anomalous movement deflector roll 1, the second horizontal anomalous movement deflector roll 2, the 3rd horizontal anomalous movement deflector roll 3, the 4th horizontal anomalous movement deflector roll 4 constantly rotates (the central axis m around film blowing machine head rotates) around center-pole 72, and traction nip rolls 5 and the first horizontal anomalous movement deflector roll 1 synchronously rotate, 0.75 times of the rotational angle that the rotational angle of the second horizontal anomalous movement deflector roll 2 is the first horizontal anomalous movement deflector roll, 0. 5 times of the rotational angle that the rotational angle of the 4th horizontal anomalous movement deflector roll is the 3rd horizontal anomalous movement deflector roll, and the rotating ratio of central controller controls the first servomotor and the second servomotor, make the first horizontal anomalous movement deflector roll 4 times of the rotational angle rotational angle that is the 4th horizontal anomalous movement deflector roll, like this, the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the rotational angle size of the 4th horizontal anomalous movement deflector roll is 4:3:2:1, for example, under state shown in Fig. 3, the angle of the first horizontal anomalous movement deflector roll 1 is with respect to having rotated 180 degree under original state, the angle of the second horizontal anomalous movement deflector roll 2 is than having rotated 135 degree under original state, the angle of the 3rd horizontal anomalous movement deflector roll 3 is than having rotated 90 degree under original state, the angle of the 4th horizontal anomalous movement deflector roll 4 is than having rotated 45 degree under original state, as shown in Figure 3, in this state, the drive path of film 82 is as Fig. 4, shown in Fig. 5, traffic direction during the horizontal stationary guide roller 6 of final process is perpendicular to horizontal stationary guide roller 6.
Rotational angle at the first horizontal anomalous movement deflector roll 1 is less than under the intermediateness of 180 degree, the rotational angle size of the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll remains 4:3:2:1, path and the round about manner of film operation are similar to Fig. 4, Fig. 5, and traffic direction when film finally passes through horizontal stationary guide roller 6 in theory also keeps perpendicular to horizontal stationary guide roller.
Path and the round about manner of above-mentioned film operation are identical with traditional rotary tractor.
If but at the first horizontal anomalous movement deflector roll 1, the second horizontal anomalous movement deflector roll 2, the 3rd horizontal anomalous movement deflector roll 3, the 4th horizontal anomalous movement deflector roll 4 in the center-pole rotation process, due to gear clearance, and make in the first horizontal anomalous movement deflector roll 1, the second horizontal anomalous movement deflector roll 2, the 3rd horizontal anomalous movement deflector roll 3, the 4th horizontal anomalous movement deflector roll 4 a certain or the rotational angle of certain two deflector roll have error, traffic direction when film 82 is through horizontal stationary guide roller will be not orthogonal to horizontal stationary guide roller 6, if at this moment do not adjusted, fold will appear in film.For this reason, the utility model can be adjusted in the following manner: when film 82 two ends, left and right total lengths being detected and do not wait, central controller is finely tuned the rotating ratio of the first servomotor and the second servomotor, make the first horizontal anomalous movement deflector roll 1 rotational angle be slightly larger than 4 times of rotational angle of (or being slightly less than) the 4th horizontal anomalous movement deflector roll (rotational angle of the second horizontal anomalous movement deflector roll be still 0.75 times of rotational angle of the second horizontal anomalous movement deflector roll, the rotational angle of the 4th horizontal anomalous movement deflector roll is still 0. 5 times of rotational angle of the 3rd horizontal anomalous movement deflector roll), until the traffic direction of film when the horizontal stationary guide roller 6 is perpendicular to horizontal stationary guide roller, adjust and finish, two servomotors return to the state of rated speed ratio again, thus, when the utility model is about to occur fold trend at film, can realize not shutting down being adjusted.

Claims (1)

1. the rotary tractor of an inflation film manufacturing machine, comprise traction nip rolls, the first horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the 4th horizontal anomalous movement deflector roll, horizontal stationary guide roller, from vertical position, the vertical position of the 4th horizontal anomalous movement deflector roll, the 3rd horizontal anomalous movement deflector roll, the second horizontal anomalous movement deflector roll, the first horizontal anomalous movement deflector roll, traction nip rolls reduces successively, the two ends of traction nip rolls are arranged on the nip rolls support, the two ends of the first horizontal anomalous movement deflector roll are arranged on the first support, the two ends of the second horizontal anomalous movement deflector roll are arranged on the second support, the two ends of the 3rd horizontal anomalous movement deflector roll are arranged on the 3rd support, the two ends of the 4th horizontal anomalous movement deflector roll are arranged on the 4th support, it is characterized in that: be fixed with horizontal back timber above four horizontal anomalous movement deflector rolls, fixedly be lifted with a vertical center-pole below horizontal back timber, the central axis of center-pole and the central axis of film blowing machine head are located along the same line, described nip rolls support, the first support, the second support, the 3rd support, the 4th support is mounted on center-pole and can horizontally rotates around center-pole, the nip rolls support is fixed together with the first support and synchronizes rotation, also be provided with the first servomotor, the second servomotor, the first servomotor drive to connect the first support, the second support by the first gear drive, and 0.75 times of the rotational angle of the second support under the first driven by servomotor rotational angle that is the first support, the second servomotor drive to connect the 3rd support, the 4th support by the second gear drive, and 0.5 times of the rotational angle of the 4th support under the second driven by servomotor rotational angle that is the 3rd support, the first servomotor is provided with the first encoder, and the second servomotor is provided with the second encoder, also be provided with central controller, the first servomotor, the second servomotor connect respectively central controller.
CN2013203668148U 2013-06-25 2013-06-25 Rotary traction device for film blowing machine Active CN203331410U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104494101A (en) * 2014-11-28 2015-04-08 佛山市联塑万嘉新卫材有限公司 Film-blowing, cooling and drawing device
CN104494131A (en) * 2014-12-16 2015-04-08 江苏宏远新材料科技有限公司 Rotating traction device for injection molding machine
CN110027187A (en) * 2019-05-31 2019-07-19 重庆瑞霆塑胶有限公司 Blow moulding equipment traction device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104494101A (en) * 2014-11-28 2015-04-08 佛山市联塑万嘉新卫材有限公司 Film-blowing, cooling and drawing device
CN104494131A (en) * 2014-12-16 2015-04-08 江苏宏远新材料科技有限公司 Rotating traction device for injection molding machine
CN104494131B (en) * 2014-12-16 2016-09-21 江苏宏远新材料科技有限公司 A kind of rotary tractor of injection machine
CN110027187A (en) * 2019-05-31 2019-07-19 重庆瑞霆塑胶有限公司 Blow moulding equipment traction device

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