CN103193102A - Floating roll device for film production device - Google Patents
Floating roll device for film production device Download PDFInfo
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- CN103193102A CN103193102A CN2013100975242A CN201310097524A CN103193102A CN 103193102 A CN103193102 A CN 103193102A CN 2013100975242 A CN2013100975242 A CN 2013100975242A CN 201310097524 A CN201310097524 A CN 201310097524A CN 103193102 A CN103193102 A CN 103193102A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 230000005484 gravity Effects 0.000 abstract description 8
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 239000002985 plastic film Substances 0.000 abstract 1
- 229920006255 plastic film Polymers 0.000 abstract 1
- 230000008859 change Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The invention relates to a floating roll device for a film production device. Two ends of a floating roll are respectively rotatably connected with a rotating arm, the middle of the left rotating arm and the middle of the right rotating arm are respectively hinged to a piston rod of a cylinder, and a cylinder barrel of the cylinder is connected to a wallboard. The two rotating arms are fixedly connected with a rotating rod, and two ends of the rotating rod are rotatably installed on the wallboard. One end of the rotating rod is connected with a position detection mechanism angle encoder, and an encoder signal line is connected with a winding drum transmission motor control mechanism. A film is downward from a front guide roll, bypasses the lower portion of the floating roll and is upward to be wound on a winding drum through a rear guide roll. Counter weight blocks are installed at far ends of the rotating arms relative to the floating roll. Tensile force of the film acting on the floating roll, gravity of the floating roll, thrust of the cylinder and gravity of the counter weight blocks are balanced, and the floating roll is at a balanced position. The floating roll device can adapt to a film tension value from 2 N to 200N, can be used for plastic films of different specifications and can also be used for paper or cloth. The low-friction cylinder is adopted, and sensitivity is +/-0.01N.
Description
Technical field
The present invention relates to film production equipment, be specially a kind of float roller device of film production equipment.
Background technology
The diameter that the rolling of film production processing unreels film volume in the operation is constantly changing, and the variation of film coil diameter can cause film volume coiled material tension change.If film coil tension force is too small, cause film volume lax wrinkling, be involved in a large amount of air, the coiled material unfairness that laterally wanders off.If the film coil overtension then causes the coiled material stretching transition, the longitudinal tension force line can appear in film surface, the rib of protuberance can occur on the surface of film volume, even can make the deformation of thin membrane fracture.Therefore, lick in the journey in the film retractable, for guaranteeing the surface quality of production efficiency and film, must remain constant tension.
In actual production, the film volume linear resonance surface velocity that batches film is dynamic change with the increase of film coil diameter, the speed of the film that method, apparatus transports simultaneously also can change with the variation of speed of production, and these all can cause the tension force on the film constantly to change.For the tension force that makes film keeps constant, just must roll up the automatic rotating speed of adjusting winding drum of size of tension force according to film.
More often adopt at present float roller device to detect the rotating speed of tension force, control reel.The film that the place ahead operation is carried is batched by reel through guiding roller, and dancer is arranged between 2 guiding rollers, and dancer is lower than guiding roller, and the dancer two ends respectively are connected with pivoted arm rotationally, and pivoted arm middle part in the left and right sides joins with the piston rod of cylinder.The opposite side of pivoted arm is connected to position detecting mechanism, and the signal of position detecting mechanism is connected with the reel motor control mechanism.Film in the past guiding roller is downward, walks around the dancer below, more upwards through after guiding roller batch on the reel.Pulling force and the gravity of dancer self and the thrust of cylinder of membrane action on dancer balances each other during beginning, and dancer is in balance position.Along with the increasing of film coil diameter, the linear velocity of film increases, and the pulling force that acts on film increases, and dancer is swing upwards.Dancer upwards swing drives the pivoted arm swing, the position detecting mechanism action that it connects, and signal is delivered to the reel motor control mechanism, reduces drum speed, and memberane stress returns to given value, and dancer is got back to balance position.
But existing float roller device sensitivity is not high, and the coiled material tension change reaches 20N(newton) above could regulate spool velocity.Still can not guarantee the quality of film volume fully.In addition, this kind float roller device can only be regulated control by corresponding a kind of memberane stress.When producing the film of different size, the memberane stress difference, float roller device can't be regulated adaptation.
For the control accuracy application number that improves float roller device is that the disclosed scheme of the Chinese invention patent application " novel float roller device of cast film machine rolling-up mechanism " of CN200710031010.1 adopts swing arm, 2 fulcrums and synchronizing wheel, the structure of band synchronously.But this scenario-frame complexity is regulated difficulty, is difficult for implementing to use.
Summary of the invention
The objective of the invention is to design a kind of float roller device of film production equipment, comprise guiding roller, dancer, pivoted arm, cylinder, position detecting mechanism action and reel motor control mechanism, far-end at pivoted arm also has clump weight, but the tension force of balance film and dancer gravity, cylinder action power, the given tension value of adaptation different size film.
The float roller device of the film production equipment of the present invention's design, comprise guiding roller, dancer, pivoted arm, cylinder, position detecting mechanism and reel motor control mechanism, dancer is arranged between 2 guiding rollers, dancer is lower than guiding roller, guiding roller is downward in the past for film, walk around dancer below, upwards batch on the reel, form film and roll up through the back guiding roller again.
Pivoted arm of each captive joint of dancer two ends, each is hinged the middle part of left and right 2 pivoted arms with the piston rod of a cylinder, and the cylinder barrel of cylinder is connected in the wallboard of equipment.Pivoted arm is connected to position detecting mechanism, and the signal of position detecting mechanism is connected with the reel motor control mechanism.Film in the past guiding roller is downward, walks around the dancer below, more upwards through after guiding roller batch on the reel.The float roller device of the present invention's design also disposes revolving bar and clump weight, and the revolving bar two ends are rotatably installed on the wallboard of equipment, and pivoted arm is captiveed joint with revolving bar, and the point of connection of cylinder piston rod and pivoted arm is between revolving bar and the dancer.Clump weight is installed on pivoted arm with respect to the far-end of dancer.Position detecting mechanism is angular encoder, is connected with revolving bar through coupler, and the signal wire (SW) of angular encoder is connected with the reel motor control mechanism.
Pulling force, the gravity of dancer, the thrust of cylinder and the gravity of clump weight of membrane action on dancer balances each other during beginning, and dancer is in balance position.For different films, the tension force difference is regulated clump weight and can be made dancer be in the balance position of setting.
Along with the increasing of film coil diameter, the linear velocity of film increases, and the pulling force that acts on film increases, and dancer is swing upwards.Dancer upwards swing drives the rotation of two swivel arms, revolving bar drives angular encoder and rotates synchronously, angular encoder records the rotational angle signal and delivers to reel motor control mechanism adjusting reel motor speed, the reel rotating speed of motor descends, the tension force of film returns to given value, and dancer is got back to original balance position again.
For improving the sensitivity of device, described cylinder is low friction cylinder, and the bleed pressure changing value is low to moderate 0.005Mpa also can make cylinder piston produce action, can accurately control the power output of 0.01N.Memberane stress has the subtle change of 0.01N, and cylinder piston just can move, and pivoted arm is rotated, and angular encoder detects the rotation of pivoted arm can in time adjust the reel motor speed, and the rolling operation is more tended towards stability.
The inlet end of described cylinder is equipped with pressure regulating valve, to regulate cylinder pressure.When initial condition is regulated the balance position of dancer, can regulate clump weight, also can regulate cylinder pressure, be the cylinder thrust that pivoted arm is subjected to, make dancer reach the required balance position.
For ease of operation and control, described pressure regulating valve is electric Proportion valve, and the control signal wire of electric Proportion valve is connected with reel driving motor control mechanism.By changing current value or the magnitude of voltage of this valve of control, make that cylinder intake pressure is corresponding to change, realize the step-less adjustment of cylinder pressure, realize Long-distance Control and programming control.
2 pivoted arms and cylinder piston rod are hinged, and cylinder can rotate around piston rod top point of connection, and cylinder barrel afterbody and cylinder block are hinged, and cylinder block is fixed in wallboard, and cylinder barrel can rotate along cylinder block.
Be L with dancer line of centers to the distance of revolving bar line of centers, the distance of pivoted arm upper cylinder piston rod point of connection and revolving bar line of centers is 1/2L to 2/3L, and the distance at clump weight center and revolving bar center is 2/5L to 6/5L.
Clump weight is 1～6 of Different Weight, is convenient to select to use when initial condition is regulated.
The pivoted arm far-end has along pivoted arm groove longitudinally, bolt connects pivoted arm and clump weight through groove, distance with this groove adjustable weight piece center and revolving bar, namely regulate the arm of force of clump weight, be used for regulating clump weight at initial condition and make dancer be in the balance position of setting, can prevent clump weight accidental from the pivoted arm again.
Described reel motor control mechanism comprises programmable logic controller (PLC) (PLC) and governor, and the signal of angular encoder inserts the input end of programmable logic controller (PLC), and the output of programmable logic controller (PLC) inserts governor, and governor connects the reel motor.PLC is, and angle signal is handled, and compares with former equilibrium point angle voltage signal, draws deviate, after integral operation, obtains reel motor speed adjustment value, and the motor speed adjustment value of PLC output inserts governor, and governor is regulated the reel motor speed.Whole film by the reel coiling process in, increase along with the film coil diameter, dancer swings up and down, make angular encoder produce real-time feedback signal, the reel motor speed constantly is adjusted, the memberane stress that indirect control reel batches keeps constant, and dancer maintains the balance position that initial condition is regulated.
Described reel motor is variable-frequency motor or servomotor, and corresponding governor is frequency converter or servo-control unit.
One of described 2 pivoted arms respectively have a limit base in the above and below of dancer junction, and limit base is fixed in wallboard, to limit the amplitude that pivoted arm rotates, parts such as protection dancer, angular encoder.Limit base is equipped with shock pad on the face of pivoted arm.
Compared with prior art, the advantage of the float roller device of film production equipment of the present invention is: 1, by changing weight, the position of cylinder pressure and clump weight, adapting to the memberane stress value can be by 2N to 200N, the plastic sheeting product that can be used for different size, the paper that also can be used for printing industry batches, and perhaps the cloth of textile industry batches; 2, adopt low friction cylinder, the sensitivity of action reaches ± 0.01N, namely the memberane stress value change into ± just can obtain adjusting during 0.01N, guaranteed that film furls to make even surely, improved the surface quality of production efficiency and film; 3, initial dancer balance position can be realized by regulating cylinder pressure, clump weight weight and position, and is convenient and swift; 4, simple in structure, easy for installation, be suitable for plurality of specifications film take-up equipment and use.
Description of drawings
Fig. 1 is the float roller device example structure scheme drawing of this film production equipment;
Fig. 2 is the lateral plan of Fig. 1
1, angular encoder, 11, protective cover, 2, elastic coupling, 3, clump weight, 4, pivoted arm, 5, revolving bar, 6, cylinder, 61, piston rod, 62, cylinder barrel, 63, cylinder block, 7, dancer, 71, mandrel, 8, limit base, 9, wallboard, 10, film.
The specific embodiment
The float roller device embodiment of this film production equipment as illustrated in fig. 1 and 2, dancer 7 is hollow roller, the dancer two ends respectively are embedded with an antifriction-bearing box, bearing is fixed on the dancer two ends by the hole with collar, on the mandrel 71 step is arranged, pass bearing bore and be fixed as one with collar and roller by axle, the two ends of mandrel 71 are fixed in the left and right pivoted arm 4 corresponding holes.Dancer 7 is lower than guiding roller, and guiding roller is downward in the past for film 10, walks around dancer 7 belows, upwards batches on the reel, forms film and roll up through the back guiding roller again.
There is step at revolving bar 5 two ends, and revolving bar 5 left ends pass relative Kong Bingyu left side pivoted arm 4 captive joints of pivoted arm 4 in left side; Revolving bar 5 right-hand members pass pivoted arm 4 corresponding Kong Bingyu right side pivoted arm 4 captive joints on right side; The revolving bar two ends are installed on the wallboard 9 of both sides by bearing seat and bearing again.Dancer 7 is formed a rectangular frame by mandrel 71 and revolving bar 5 and left and right pivoted arm 4, and this rectangular frame can swing up and down around revolving bar 5.Revolving bar 5 left ends pass wallboard 9 and link to each other with angular encoder 1 by elastic coupling 2, and fixedly on the wallboard 9, angular encoder 1 is equipped with protective cover 11 outward to angular encoder 1.The signal wire (SW) of angular encoder 1 is connected with the reel motor control mechanism.
The distal side of left and right pivoted arm 4 relative dancers 7 has along pivoted arm 4 groove longitudinally, and clump weight 3 is through on the pivoted arm 4 by bolt in the pivoted arm groove, and clump weight 3 can vertically move, regulate the distance of clump weight 3 centers and revolving bar 5 on pivoted arm 4.This example has the clump weight of 3 Different Weight for selecting for use.
The pivoted arm 4 in this example left side respectively has a limit base 8 in the above and below with the junction of dancer, and limit base 8 is fixed in wallboard 9.Limit base 8 is equipped with shock pad on the face of pivoted arm 4.
Each is hinged the middle part of left and right pivoted arm 4 with the piston rod 61 of a cylinder 6.Described cylinder 6 is low friction cylinder.As shown in Figure 2, cylinder piston rod 61 can rotate along point of connection.Cylinder barrel 62 afterbodys and the cylinder block of low friction cylinder 6 are hinged, and cylinder block 63 is fixed in wallboard 9, and cylinder barrel can rotate along cylinder block.
The inlet end of described cylinder 6 is equipped with electric Proportion valve.The control signal wire of electric Proportion valve is connected with the reel motor control mechanism.
This example is L with dancer 7 line of centerss to the distance of revolving bar 5 line of centerss, and the distance of pivoted arm 4 upper cylinder piston rods, 61 point of connection and revolving bar 5 line of centerss is 1/2L, and the distance at clump weight center and revolving bar center is L.
Described reel motor control mechanism comprises programmable logic controller (PLC) (PLC) and governor, and the signal of angular encoder inserts the input end of programmable logic controller (PLC), and the output of programmable logic controller (PLC) inserts governor, and governor connects the reel motor.This routine reel motor is variable-frequency motor, and governor is frequency converter.
Initial condition, electric Proportion valve, the clump weight 3 of adjusting cylinder 6 make film 10 act on the pulling force on the dancer 7, the gravity of dancer 7, the thrust of cylinder 6 and the gravity of clump weight 3 and balance each other, and dancer 7 is in balance position.Along with the increasing of film coil diameter, the linear velocity of film 10 increases, and the pulling force that acts on film 10 increases, upwards swing of dancer 7.Dancer 7 upwards swing drives 4 rotations of two swivel arms, revolving bar 5 drives angular encoder 1 and rotates synchronously, angular encoder 1 records the rotational angle signal and delivers to reel motor control mechanism adjusting reel motor speed, the reel rotating speed of motor descends, the tension force of film 10 returns to given value, and dancer 7 is got back to original balance position again.
Use this routine float roller device in the rolling section of film line, spool velocity is constantly according to the memberane stress adjustment in the film coiling process, and film volume coiling process is steady, and film volume surface is smooth-going, two ends are concordant, and film quality is guaranteed.And when producing the change of film kind, this device can be regulated the tension force that adapts to different films easily.
Above-described embodiment is the specific case that purpose of the present invention, technical scheme and beneficial effect are further described only, and the present invention is defined in this.All any modifications of within scope of disclosure of the present invention, making, be equal to replacement, improvement etc., all be included within protection scope of the present invention.
Claims (10)
1. the float roller device of film production equipment, comprise guiding roller, dancer, pivoted arm, cylinder, position detecting mechanism and reel motor control mechanism, dancer is arranged between 2 guiding rollers, dancer is lower than guiding roller, guiding roller is downward in the past for film, walk around dancer below, upwards batch through the back guiding roller again and form film on the reel and roll up; Pivoted arm of each captive joint of dancer two ends, each is hinged the middle part of left and right 2 pivoted arms with the piston rod of a cylinder, the cylinder barrel of cylinder is connected in the wallboard of equipment, and pivoted arm is connected to position detecting mechanism, and the signal of position detecting mechanism is connected with the reel motor control mechanism; It is characterized in that:
Also dispose revolving bar (5) and clump weight (3), revolving bar (5) two ends are rotatably installed on wallboard (9), pivoted arm (4) is captiveed joint with revolving bar (5), and the point of connection of cylinder piston rod (61) and pivoted arm (4) is between revolving bar (5) and the dancer (7); Clump weight (3) is installed on pivoted arm (4) with respect to the far-end of dancer (7), position detecting mechanism is angular encoder (1), angular encoder (1) is connected with revolving bar (5) through coupler, and the signal wire (SW) of angular encoder (1) is connected with the reel motor control mechanism.
2. the float roller device of film production equipment according to claim 1 is characterized in that:
Described cylinder (6) is low friction cylinder.
3. the float roller device of film production equipment according to claim 1 is characterized in that:
The inlet end of described cylinder (6) is equipped with pressure regulating valve.
4. the float roller device of film production equipment according to claim 3 is characterized in that:
Described pressure regulating valve is electric Proportion valve, and the control signal wire of this electric Proportion valve is connected with the reel motor control mechanism.
5. the float roller device of film production equipment according to claim 1 is characterized in that:
Described dancer (7) line of centers is L to the distance of revolving bar (5) line of centers, and the distance of pivoted arm (4) upper cylinder piston rod (61) point of connection and revolving bar (5) line of centers is 1/2L to 2/3L.
6. the float roller device of film production equipment according to claim 5 is characterized in that:
The distance at described clump weight (3) center and revolving bar (5) center is 2/5L to 6/5L.
7. the float roller device of film production equipment according to claim 1 is characterized in that:
Described clump weight (3) is 1～6 of Different Weight.
8. the float roller device of film production equipment according to claim 1 is characterized in that:
Described pivoted arm (4) far-end has along pivoted arm (4) groove longitudinally, and bolt connects pivoted arm (4) and clump weight (3) through groove.
9. the float roller device of film production equipment according to claim 1 is characterized in that:
Described reel motor control mechanism comprises programmable logic controller (PLC) and governor, and the signal of angular encoder (1) inserts the input end of programmable logic controller (PLC), and the output of programmable logic controller (PLC) inserts governor, and governor connects the reel motor.
10. the float roller device of film production equipment according to claim 1 is characterized in that:
One of described 2 pivoted arms (4) respectively have a limit base (8) in the above and below with dancer (7) junction, and limit base (8) is fixed in wallboard (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310097524.2A CN103193102B (en) | 2013-03-26 | 2013-03-26 | The float roller device of membrane production equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310097524.2A CN103193102B (en) | 2013-03-26 | 2013-03-26 | The float roller device of membrane production equipment |
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| CN103193102A true CN103193102A (en) | 2013-07-10 |
| CN103193102B CN103193102B (en) | 2016-06-08 |
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| CN201310097524.2A Active CN103193102B (en) | 2013-03-26 | 2013-03-26 | The float roller device of membrane production equipment |
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