CN101469475B

CN101469475B - Middle arranged tension device

Info

Publication number: CN101469475B
Application number: CN2007103072552A
Authority: CN
Inventors: 周兆兵
Original assignee: SHEYANG ZHONGYI TEXTILE MACHINERY MANUFACTURING Co Ltd
Current assignee: SHEYANG ZHONGYI TEXTILE MACHINERY MANUFACTURING Co Ltd
Priority date: 2007-12-29
Filing date: 2007-12-29
Publication date: 2011-09-14
Anticipated expiration: 2027-12-29
Also published as: CN101469475A

Abstract

The invention relates to a center disposed tension device of a warping machine, which is characterized in that: the motor is a vector frequency control motor electrically connected with an automatic control device for controlling rotation speed of let-off tension roller; the tension roller is disposed on bottom portion between two yarn guide rollers; pins are disposed on inner surface of the yarn outlet on the wall of the left box body and the right box body respectively, two connection plates are movably engaged with pins through a central hole, both ends of the tension rod (a) and the tension rod (b) are attached on both sides of the pin engaged with central holes of two connection plates; a pressure sensor contact is disposed on inner surface wall of left or right box body, which is in contact with the bottom side of the tension rod (a) axle neck permanently. The center disposed tension device makes the yarn form a wrapping angle through the yarn guidance roller, the tension roller, and the yarn guidance roller, makes the yarn and the yarn guidance roller generates adhesion, implements closed-loop control to the yarn tension through on-line detection of the pressure sensor, and satisfies needed tension requirements in the warping process.

Description

Mid-set tensioner

Technical field:

The present invention relates to a kind of textile machine, especially a kind of warping machines Mid-set tensioner.

Background technology:

At present be unworthy of Mid-set tensioner between the bobbin cradle of warping machines and the lease reed on the market, yarn from bobbin cradle directly to lease reed.Because yarn tube diameter variation in the process of warping, the difference of position, the density variation of yarn tube, the difference of speed of beaming and the adjustment of tensioner etc. are all multifactorly to cause the single yarn tension in bar yarn, the sheet yarn inhomogeneous, bar yarn, the fluctuation of sheet yarn tension are greatly, wayward, thus influence is through yarn quality.

Summary of the invention

The objective of the invention is to set up Mid-set tensioner between the bobbin cradle of warping machines and lease reed, reduce single yarn tension difference by this device, the fluctuation of control input tension force reaches the unanimity of output tension force.

For achieving the above object, the technical solution adopted in the present invention is: a kind of Mid-set tensioner comprises motor, left box body, right case, support beam, yarn, reed, cord roller, jockey pulley; The two ends of reed are separately fixed on the yarn input port medial surface of left box body, right case wallboard by its support arm; Two rotating shaft of cord roller, jockey pulley is installed on the wallboard of left box body, right case by bearing, be connected to form one by the support beam between left box body, the right case, it is characterized in that: the vector converter motor that department of electrical engineering can be electrically connected with the rotating speed automaton of control warp let-off jockey pulley; Jockey pulley fits over two bottoms between the cord roller; Be furnished with bearing pin respectively on the delivery outlet medial surface of the yarn of left box body, right case wallboard, two connecting plates are not moved by the centre bore branch and are fitted on the bearing pin, and the two ends of tension rail a, tension rail b are separately fixed at the both sides of two connecting plate centre bore institute distribution axles; Be furnished with pressure sensor on left box body or right case delivery outlet medial surface wallboard, the contact of pressure sensor contacts below tension rail a axle journal all the time.

Described a kind of Mid-set tensioner is characterized in that: described motor shaft is connected by synchronous pulley and synchronous band with the rotating shaft of one of jockey pulley.

Described a kind of Mid-set tensioner is characterized in that: the axle line of centres of tension rail a and bearing pin is level and is inclined upwardly 5-30 °; The axle line of centres of tension rail b and bearing pin is the downward-sloping 5-30 of level °.

Described a kind of Mid-set tensioner is characterized in that: be furnished with electromagnetic brake respectively for one at two cord rollers and jockey pulley; Other end at jockey pulley also is furnished with rotary encoder.

The present invention's beneficial effect compared with prior art: by between the bobbin cradle of warping machines and lease reed, setting up this Mid-set tensioner, make yarn behind cord roller → jockey pulley → cord roller, form angle of contact, make yarn and cord roller produce adhesive force, pass through the online detection of pressure sensor again, realized closed-loop control, satisfied tension force requirement required in the warping technology the sheet yarn tension.

Description of drawings:

Fig. 1 is the front view of this device;

Fig. 2 is an A-A cross section right view among Fig. 1;

Fig. 3 is an A-A cross section left view among Fig. 1;

Fig. 4 is the Tension Control electrical diagram.

Among the figure: 1. yarn, 2. reed, 3. cord roller, 4. jockey pulley, 5. synchronous pulley, 6. pressure sensor, 7. connecting plate, 8. display, 9. motor, 10. electromagnetic brake, 11. rotary encoders, 12. support beams, 13. left box body, 14. right cases, 15. bearing pins, 16. tension rail a, 17. tension rail b.

The specific embodiment:

Describe the present invention in detail below in conjunction with accompanying drawing:

As Figure 1-3, this tensioner comprises motor 9, left box body 13, right case 14, support beam 12, yarn 1, reed 2, cord roller 3, jockey pulley 4; The two ends of reed 2 are separately fixed on the yarn 1 input port medial surface of left box body 13, right case 14 wallboards by its support arm; Two rotating shaft of cord roller 3, jockey pulley 4 is installed in by bearing on the wallboard of left box body 13, right case 14, is connected to form one by support beam 12 between left box body 13, the right case 14.9 in motor reaches synchronously with the rotating shaft of 4 one of jockey pulleys by synchronous pulley 5, and band is connected.Is furnished with electromagnetic brake 10 respectively for one at two cord rollers 3 and jockey pulley 4; Other end at jockey pulley 4 also is furnished with rotary encoder 11.

Motor 9 is the vector converter motor that can be electrically connected with the rotating speed automaton of control warp let-off jockey pulley 4.The rotating speed automaton of control warp let-off jockey pulley 4 described here, Tension Control electrical diagram as shown in Figure 4, it is self-con-tained unit commonly used at present, be that described motor 9 is set the required tension force of current technology by display 8, the actual tension of coming then by the feedback of pressure sensor 6, regulate by PLC, export to the tension value of vector frequency converter, frequency converter is accepted rate signal simultaneously, so that vector converter motor 9 obtains a velocity amplitude and tension value, implement the adjustment of warp let-off jockey pulley 4 rotating speeds.

Jockey pulley 4 fits over two bottoms between the cord roller 3, makes yarn 1 form angle of contact through cord roller 3, makes yarn 1 and cord roller 3 produce adhesive force, reduces single yarn tension difference, and the fluctuation of control input tension force reaches the output uniform tension in order.On the delivery outlet medial surface of the yarn 1 of left box body 13, right case 14 wallboards, is furnished with bearing pin 15 respectively, two connecting plates 7 are not moved by the centre bore branch and are fitted on the bearing pin 15, and the two ends of tension rail a16, tension rail b17 are separately fixed at the both sides of two connecting plate 7 centre bores institute distribution axles 15.The axle line of centres of tension rail a16 and bearing pin 15 is level and is inclined upwardly 15 °; The axle line of centres of tension rail b17 and bearing pin 15 is downward-sloping 15 ° of level.Be furnished with pressure sensor 6 on left box body 13 or right case 14 delivery outlet medial surface wallboards, the contact of pressure sensor 6 contacts below tension rail a16 axle journal all the time.

The course of work:

After the every one thread 1 that extracts from the bobbin cradle of warping machines enters from reed 2 respectively, enter from a cord roller 3 periphery upper surfaces nearby, then through to the bottom periphery of jockey pulley 4, behind another cord roller 3 periphery upper surfaces, move on again, behind tension rail a16 upper surface, after the periphery of tension rail b17 bottom, draw again, enter next step lease reed technological process.The power that yarn 1 advances is by jockey pulley 4 rotating drive, and two cord rollers 3 are followed rotation.

Claims

1. a Mid-set tensioner comprises motor (9), left box body (13), right case (14), support beam (12), yarn (1), reed (2), cord roller (3), jockey pulley (4); The two ends of reed (2) are separately fixed on yarn (1) the input port medial surface of left box body (13), right case (14) wallboard by its support arm; Two rotating shaft of cord roller (3), jockey pulley (4) is installed on the wallboard of left box body (13), right case (14) by bearing, be connected to form one by support beam (12) between left box body (13), the right case (14), it is characterized in that: motor (9) is to be the vector converter motor that is electrically connected with the rotating speed automaton of control warp let-off jockey pulley (4); Jockey pulley (4) fits over the bottom between two cord rollers (3); On the delivery outlet medial surface of the yarn (1) of left box body (13), right case (14) wallboard, is furnished with bearing pin (15) respectively, two connecting plates (7) are not moved by the centre bore branch and are fitted on the bearing pin (15), and the two ends of tension rail a (16), tension rail b (17) are separately fixed at the both sides of two connecting plates (7) centre bore institute's distribution axles (15); Be furnished with pressure sensor (6) on left box body (13) or right case (14) delivery outlet medial surface wallboard, the contact of pressure sensor (6) contacts below tension rail a (16) axle journal all the time.

2. a kind of Mid-set tensioner according to claim 1 is characterized in that: described motor (9) axle is connected by synchronous pulley (5) and synchronous band with the rotating shaft of (4) one of jockey pulleys.

3. a kind of Mid-set tensioner according to claim 1 is characterized in that: the axle line of centres of tension rail a (16) and bearing pin (15) is level and is inclined upwardly 5-30 °; Tension rail b (17) is the downward-sloping 5-30 of level ° with the axle line of centres of bearing pin (15).

4. a kind of Mid-set tensioner according to claim 1 is characterized in that: be furnished with electromagnetic brake (10) respectively for one at two cord rollers (3) and jockey pulley (4); Also is furnished with rotary encoder (11) in the other end of jockey pulley (4).