CN201169657Y - Automatic detection apparatus of acrylon thread cut-off machine fibre beam tension - Google Patents
Automatic detection apparatus of acrylon thread cut-off machine fibre beam tension Download PDFInfo
- Publication number
- CN201169657Y CN201169657Y CNU2008200796317U CN200820079631U CN201169657Y CN 201169657 Y CN201169657 Y CN 201169657Y CN U2008200796317 U CNU2008200796317 U CN U2008200796317U CN 200820079631 U CN200820079631 U CN 200820079631U CN 201169657 Y CN201169657 Y CN 201169657Y
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- tension
- tow
- fixed
- bearing
- pressure sensors
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Abstract
The utility model relates to a tow tension automatic detecting device for an orlon thread cutting machine. The tow tension automatic detecting device guarantees the appropriate tow cutting tension and has good tow cutting effect as well as is formed by a tension roller, two silk guide rollers, support saddles, a stander, bearings, a tension detector and two pressure sensors, wherein two ends of the two silk guide rollers are fixed on the support saddles on the two ends by the bearings, the support saddles are fixed on a stander platform formed by two post bodies, the tension roller is positioned between the two silk guide rollers, the bearings at the two ends are fixed on the two pressure sensors, the two pressure sensors are fixed on the support saddles at the two ends, the two support saddles are fixed on the stander platform formed by of the two post bodies, and the pressure sensors are connected with a nsiometer which is connected with a PLC analog input card connected with a frequency converter of a tractor; and the tow tension realizes the automatic detection and the automatic control, the control proposal is simple, has good effect and low failure rate and solves problem that the tow is elongated or is not cut down because the tension is controlled manually; and the tension control accuracy is +-3N.
Description
Technical field
It is suitable that the utility model relates to a kind of assurance tow cut-out tension force, makes tow cut off effective acrylics filament cutting machine tow tension automatic detection device.
Background technology
With the Automatic Control Theory is foundation, and the cutting-off process of the QD-1A type cutting machine of producing in conjunction with Anda universe writing brush machinery plant is described below background technology:
Tow vertically enters the mantle fiber ring through horizontal silk guide frame after deposit a case and come out, and after the mantle fiber ring is by conducting wire pole and two godet rollers, makes tow become horizontal direction, unclogs and readjusts roller by seal wire then and enters the traction pressure roller.Directly entering cutting machine from the traction pressure roller cuts off.Because tow often has knotting place.To be stuck when these tying-ins are crossed pressure roller, perhaps enter cutting machine after, the cutoff tool on the cutterhead can't be with silk knot chopping.So, above conducting wire pole, added one and caught the knot device.It is made up of plate shaft, cover plate, sensitization dish, back-up ring, optoelectronic switch.When the silk knot passed through screw mandrel, cover plate was elevated, and garden dish and axle begin to rotate, a breach is arranged, because the rotation of axle makes photosignal pass through to arrive the sensitization dish from breach on the back-up ring, by the interlock program on the switch board, cutting machine is stopped transport, so that handle the silk knot.
Unclog and readjust roller and form by two rollers, on wear multiple tracks depth ditch, tow enters zanjon, to prevent the tow sideslip through above it.
The traction roll assembly is made up of parts such as traction motor, last lower compression roller, cylinder, electromagnetic valve, vacuum filters.The size of last lower compression roller pressure is to set by the blast of adjusting on the vacuum filter, generally is set at 3Kg.
Cutting machine mainly is made up of cutoff tool, cutterhead, cut-out motor.Tow enters the cut-out groove that has cutoff tool under the effect of pulling force, tow is sucked away by the induced-draught fan on the air channel after the cut-out groove is cut off, and sends into baling press and packs.
The brief introduction of tow-stapling machine control system
Cutting machine has start-stop switch board and the shared centralized Control cabinet of a plurality of cutting machine on the spot.On-site control has traction machine, the start-stop of cutting machine unit and whole group start-stop control function, whole group raising speed reduction of speed control function, the traction roller opens and substrate hold-down function, tension force size set-up function.The centralized Control cabinet mainly has PLC and traction motor, cutting machine frequency converter.
Cutting machine and traction motor are after on-site control starting, and their whole group of raising speed and reduction of speed control are the adjustings that size that contact time, length changed the digital addition and subtraction amount of sending into the PLC signal realizes speed of pressing by raising speed and two buttons of reduction of speed.After this manual ringing is sent into PLC, change through data signal.Become the analog signal of 4-20mA, after this signal comes out from PLC, send into traction motor frequency converter and cutting machine frequency converter respectively.Frequency converter is by changing the size that the machine operation frequency changes two motor speeds.Thereby reach required cut-off velocity.
Cutting machine also has on the control panel main speed and tension force to set switching push button on the spot, when change-over switch being switched to tension force and set a side, by adjustment raising speed and push buttondown, just can change the size of traction motor speed.Cutting machine is at a band silk disengagement phase, under the constant situation of cutting machine speed, by changing the tension force that traction motor speed just can change tow.In fact, when change-over switch being switched to tension force and set a side, be exactly to carry out the manual adjustment of tow tension by adjusting raising speed and push buttondown.
The problem that background technology exists
The tow tension of this cutting machine has only manual control.There is not tension force to detect, control automatically function automatically.Tow is when cutting off, and the cut-out tension force of wire harness can only armrest goes to touch the tension force situation of perception tow, or by cutting machine the cut-out situation of silk is judged whether the tension force of tow is suitable.This just causes tow tension phenomenon improperly often to occur adjusting.It is excessive that tow tension is transferred sometimes, and tow is elongated, and variation has taken place the dawn number of silk, has changed the index of original tow, thereby defective silk occurs.It is too small that tow tension is transferred sometimes, and it is bad to cause tow to cut off effect, has tow not have cut phenomenon.It is long silk to occur cutting off, becomes defective silk.
The utility model content
The purpose of this utility model provides a kind of acrylics filament cutting machine tow tension automatic detection device, realizes the automatic detection of cutting machine tow tension and control automatically, and it is suitable to make tow cut off tension force, cuts off effectively, prevents to cut out defective short.
Acrylics filament cutting machine tow tension automatic detection device is by jockey pulley, godet roller, bearing, frame, bearing, tension detector and pressure sensor constitute, two godet roller two ends by bearing fixing on the bearing at two ends, bearing is fixed on the framework platform of two cylinders formations, jockey pulley is between two godet rollers, the bearing fixing at two ends is on two pressure sensors, two pressure sensors are fixed on the bearing at two ends, bearing is fixed on the framework platform of two cylinders formations, pressure sensor is connected with tensiometer, tensiometer connects the PLC analog input card, and the PLC analog input card is connected with the traction machine frequency converter.
This acrylics filament cutting machine tow tension detection control apparatus is installed between the cut-out cutterhead of traction pressure roller and cutting machine.Tow is through after the traction roller, introduces from the below of first godet roller of tension detecting apparatus, by above the intermediate tension roller, entering second godet roller then, draws from the godet roller below, enters cutting machine then and cuts off cutterhead and cut off.After the cutting machine starting, tow is tightened up.Tow produces pressure to middle jockey pulley, and two pressure sensors at jockey pulley two ends detect the size of this pressure, then pressure signal are converted to the 0-5V voltage signal and are sent in the LM-10PD type tensiometer.After the voltage signal that tensiometer comes two tension pick-ups sums up, convert the normalized current signal of 4-20mA to, again this detection signal is flowed in the PLC analog input card, at the PLC analog input card by comparing with the tension force setting signal, after this deviation signal carried out the PID computing, convert the 4-20mA signal again to and give the speed that the traction machine frequency converter is adjusted traction motor, thereby reach the purpose of adjusting tow tension.
The setting value of tow tension is still by raising speed and push buttondown and realizes.Do not have before the tension detector, when carrying out tension adjustment, switch to the tension force desired location to main speed and tension force configuration switch.Set the size of tension force by raising speed and push buttondown.This setting signal is given after the PLC, is directly changed into the 4-20mA signal at PLC and gives the traction machine frequency converter and carry out speed governing.Add after the pressure-detecting device, main speed and tension force configuration switch are switched to the tension force desired location, after pressing raising speed and push buttondown, this signal is given PLC, only as the set-point of traction motor speed-regulating signal, after it will compare with the detection signal of pressure sensor,, become the 4-20mA standard signal and give the traction machine frequency converter and carry out speed governing through the PID computing.
Tensiometer is installed on the spot on the control panel.Have the tension force Presentation Function, its range is 0-500N.When carrying out the tension force setting, can observe directly the size of setting tension force by the show value on the tensiometer.
When main speed and tension force configuration switch switch to lead fast position after, can realize whole group of speed governing of traction machine and cutting machine.After adjusting raising speed and push buttondown, button increases and reduces signal and directly gives PLC, and PLC converts this signal to the 4-20mA standard signal and gives the traction motor frequency converter and cut off main motor frequency conversion device and carry out speed governing.In fact, be equivalent to manually traction machine and the main motor of cut-out be carried out speed governing.Cut-off velocity is adjusted to after the speed that needs, and the tension force automatic detection device carries out Tension Control on this speed basis.
The acrylics filament cutting machine increases after tension detector, tension bracket and the tensiometer, and tow tension has been realized automatic detection, control automatically fully.And this control scheme is simple, controls effectively, and fault rate is low.The tow that has produced owing to manual control tension force before thoroughly having solved is elongated or the problem that can't cut is arranged, and the Tension Control precision reaches ± 3N.
Description of drawings
Fig. 1 acrylics filament cutting machine tow tension automatic detection device structure side view.
Fig. 2 acrylics filament cutting machine tow tension automatic detection device structural front view.
Fig. 3 tension force Automatic Control Theory figure.
Fig. 4 traction machine and the whole group of the main motor of cut-out control principle figure.
Wherein: 1, jockey pulley 2, godet roller 3, bearing 4, frame 5, pressure sensor 6, bearing 7, bearing 8, bearing
The specific embodiment
With reference to the accompanying drawings acrylics filament cutting machine tow tension automatic detection device structure described in the utility model is specified.
Acrylics filament cutting machine tow tension automatic detection device is by jockey pulley 1, godet roller 2, bearing 3,7 frames 4, bearing 6,8 and pressure sensor 5 constitute, two godet roller 2 two ends are fixed on the bearing 3 at two ends by bearing 6, bearing 3 is fixed on frame 4 platforms of two cylinders formations, jockey pulley 1 is between two godet rollers 2, the bearing 8 at two ends is fixed on two pressure sensors 5, two pressure sensors 5 are fixed on the bearing 7 at two ends, bearing 7 is fixed on frame 4 platforms of two cylinders formations, pressure sensor 5 is connected with tensiometer, tensiometer connects the PLC analog input card, and the PLC analog input card is connected with the traction machine frequency converter.
Relevant instrument selection
(1) pressure sensor
Producer: MIT
Model: LX-100TD
Range: 500N
Supply voltage: 24VDC
Precision: ± 3N
Output signal: 0-5DV
(2) tensiometer
Producer: MIT
Model: LM-10PD
Range: 500N
Supply voltage: 24VDC
Precision: ± 3N
Output signal: 4-20mA.
Claims (1)
1. acrylics filament cutting machine tow tension automatic detection device, be by jockey pulley, godet roller, bearing, frame, bearing, tension detector and pressure sensor constitute, it is characterized in that: two godet roller two ends by bearing fixing on the bearing at two ends, bearing is fixed on the framework platform of two cylinders formations, jockey pulley is between two godet rollers, the bearing fixing at two ends is on two pressure sensors, two pressure sensors are fixed on the bearing at two ends, bearing is fixed on the framework platform of two cylinders formations, pressure sensor is connected with tensiometer, tensiometer connects the PLC analog input card, and the PLC analog input card is connected with the traction machine frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200796317U CN201169657Y (en) | 2008-03-28 | 2008-03-28 | Automatic detection apparatus of acrylon thread cut-off machine fibre beam tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200796317U CN201169657Y (en) | 2008-03-28 | 2008-03-28 | Automatic detection apparatus of acrylon thread cut-off machine fibre beam tension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201169657Y true CN201169657Y (en) | 2008-12-24 |
Family
ID=40208710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200796317U Expired - Lifetime CN201169657Y (en) | 2008-03-28 | 2008-03-28 | Automatic detection apparatus of acrylon thread cut-off machine fibre beam tension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201169657Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616126A (en) * | 2013-11-08 | 2014-03-05 | 首钢总公司 | Device and method for calibrating tension meter in continuous annealing furnace |
| CN105181210A (en) * | 2015-06-05 | 2015-12-23 | 南通醋酸纤维有限公司 | Tow tension detection device in linear movement and detection method |
| CN107585614A (en) * | 2017-09-08 | 2018-01-16 | 盐城方天无纺制品有限公司 | A kind of cutting machine tension force compensation mechanism |
-
2008
- 2008-03-28 CN CNU2008200796317U patent/CN201169657Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616126A (en) * | 2013-11-08 | 2014-03-05 | 首钢总公司 | Device and method for calibrating tension meter in continuous annealing furnace |
| CN103616126B (en) * | 2013-11-08 | 2016-01-20 | 首钢总公司 | The devices and methods therefor that a kind of continuous annealing furnace internal tension meter is demarcated |
| CN105181210A (en) * | 2015-06-05 | 2015-12-23 | 南通醋酸纤维有限公司 | Tow tension detection device in linear movement and detection method |
| CN105181210B (en) * | 2015-06-05 | 2018-02-23 | 南通醋酸纤维有限公司 | Tension detecting apparatus and detection method in tow line walking |
| CN107585614A (en) * | 2017-09-08 | 2018-01-16 | 盐城方天无纺制品有限公司 | A kind of cutting machine tension force compensation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |
|
| CX01 | Expiry of patent term |