CN212152699U

CN212152699U - Be applicable to dresser warp beam initiative backing-off device

Info

Publication number: CN212152699U
Application number: CN202020749917.2U
Authority: CN
Inventors: 路明德; 韩爱国; 张磊; 董意民; 王轩轩; 石晶晶; 范世奇; 王凯辉
Original assignee: Zhengzhou Textile Machinery Engineering & Technology Co ltd; CHTC Heavy Industry Co Ltd
Current assignee: Zhengzhou Textile Machinery Engineering & Technology Co ltd; CHTC Heavy Industry Co Ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-15
Anticipated expiration: 2030-05-09

Abstract

The utility model provides a be applicable to dresser warp beam initiative unwinding device which characterized in that: the warp beam unwinding device comprises a rack and warp beams, wherein the rack is used for placing a warp beam bracket, the warp beams are placed on the bracket through a supporting bearing, and a transmission device used for driving the warp beams to rotate in the yarn unwinding direction is arranged at one end of each warp beam; the yarn passes through a yarn tension detection device which is arranged at the lower part of the frame and consists of a first guide roller, a tension roller provided with a tension detection sensor and a second guide roller, and the yarn is actively fed forwards with constant unwinding tension in the unwinding direction; the tension detection sensor and the transmission device are respectively connected with the control system in an electric connection mode. The utility model discloses a device is used for dresser warp beam initiative backing-off, has realized warp initiative backing-off, reduces the passive drawing of yarn, has improved the backing-off tension control precision of yarn.

Description

Be applicable to dresser warp beam initiative backing-off device

Technical Field

The utility model relates to a textile machinery technical field specifically is a be applicable to dresser warp beam yarn initiative backing-off device.

Background

The warp beam yarn unwinding of the sizing machine needs certain tension to meet the technological requirements, the yarn is easy to break due to overlarge tension, and the yarn is loose and twisted due to undersize tension. The existing unwinding modes of sizing machines are passive unwinding, and the unwinding tension of yarns is the tension of yarns generated by overcoming friction force under the action of traction force; the friction force not only comprises the friction force of self mechanical rotation, but also comprises the friction force brought by the designed friction mechanism. The minimum tension of the yarn in the passive unwinding mode needs to be larger than the friction force for overcoming the mechanical rotation of the yarn, so that the warp beam can rotate along the direction of the yarn, and the yarn can be unwound from the warp beam. The yarn tension of the passive unwinding mode is adjusted by adjusting the friction resistance generated by the friction mechanism, and the larger the friction resistance generated by the friction mechanism is, the larger the unwinding tension generated by the yarn is.

The warp beam unwinding tension device has the defects that the unwinding tension control precision is low, the unwinding tension among warp beams is inconsistent due to inconsistent states of friction mechanisms of all warp beams (such as inconsistent abrasion degrees of the friction devices in the friction mechanisms), in addition, the mechanical states of equipment related to the unwinding of the warp beams are inconsistent, the unwinding tension of yarns among the warp beams is inconsistent, the number of yarn returns of the warp beams is large, and the yarns are wasted; the warp beam unwinding tension device is used for unwinding yarns formed by driving a warp beam to rotate by yarns, and has stretching damage to the yarns; the minimum unwinding tension of the yarn of the warp beam unwinding tension device also needs to reach the aim of rotating the warp beam of the friction device with zero air pressure, and the unwinding tension control effect of the warp beam unwinding tension device is poor for some varieties with large yarn elongation and high elongation control precision.

Disclosure of Invention

The utility model aims at providing a warp beam active unwinding device of sizing machine that is applicable to that can realize the active unwinding of slasher warp beam aiming at the weak point that exists among the above-mentioned prior art. The utility model discloses can show improvement warp beam backing-off tension control accuracy, improve yarn starching quality.

The purpose of the utility model is realized through the following technical scheme:

the warp beam active unwinding device suitable for the sizing machine comprises a rack and warp beams, wherein the rack is used for placing a warp beam bracket, the warp beams are placed on the bracket through a supporting bearing, and a transmission device used for driving the warp beams to rotate according to the yarn unwinding direction is arranged at one end of each warp beam; the yarn passes through a yarn tension detection device which is arranged at the lower part of the frame and consists of a first guide roller, a tension roller provided with a tension detection sensor and a second guide roller, and the yarn is actively fed forwards with constant unwinding tension in the unwinding direction; the tension detection sensor and the transmission device are respectively connected with the control system in an electric connection mode.

The first guide roller is arranged below the side of the tension roller, and the second guide roller is arranged under the tension roller.

The tension detection device feeds back the tension of the unwound yarn to the control system in an electric signal mode; the control system is connected with the transmission device, and the transmission device is accurately controlled through the received tension electric signal, so that the tension of the unwound yarn is accurately controlled. The device is used for the active unwinding of the warp beam of the sizing machine, the active unwinding of the warp is realized, the passive stretching of the yarn is reduced, and the unwinding tension control precision of the yarn is improved.

The transmission device consists of a driven gear which is arranged at one end of the warp beam and used for transmitting power and a driving gear which is meshed with the driven gear and arranged on a power output shaft of the servo motor. Furthermore, the transmission device controls the rotating speed of the warp beam along the yarn unwinding direction, so as to control the tension of the unwound yarn and realize the active unwinding of the yarn from the warp beam.

The unwinding device can unwind simultaneously with one or more beams. When a plurality of warp beams are unwound simultaneously, the warp beams can be arranged in a single layer or multiple layers, and the active unwinding of the warp beams is realized.

The working principle of the utility model is as follows:

when the sizing machine runs, the control system controls a servo speed reduction motor arranged on the rack to rotate at a corresponding rotating speed, and torque is transmitted through mutual meshing of a driving gear and a driven gear so as to drive a warp beam to rotate; the warp beam rotates on the bracket along the unwinding direction of the yarns through the supporting bearings at two ends, at the moment, the yarns 8 are actively unwound from the warp beam, after the yarns pass through the first guide roller, the tension roller and the second guide roller, the yarns form a fixed wrap angle on the tension roller, and the yarns are actively fed along the running direction of the yarns.

The diameter of the warp beam is reduced along with the active unwinding of the yarns from the warp beam, the yarns pass through the first guide roller and the tension roller to detect the tension of the yarns, and the detection signals are fed back to the control system, and the control system adjusts the rotating speed of the warp beam through controlling the servo motor in the transmission device, so that the tension of the yarns is adjusted, and the active unwinding of the yarns under constant tension is realized.

The utility model has the advantages as follows:

compared with the prior art, the utility model solves the problems of inconsistent yarn tension caused by passive unwinding of warp beam yarns; the utility model discloses the device relies on transmission servo motor as the power supply, through the meshing transmission power of gear, the rotation of control warp beam realizes that the yarn initiatively unwinds. The problem of limitation of minimum unwinding tension of the yarns due to mechanical conditions and the like in passive unwinding is solved, passive elongation abrasion of the yarns is reduced, and the sizing quality is improved; the active unwinding realizes the low-tension unwinding of the sizing machine, and solves the problem that some low-tension varieties are difficult to unwind; the utility model provides high yarn backing-off tensile accurate control has reduced the difference of sheet yarn tension, has improved the sheet yarn starching quality, improves and weaves efficiency, and has reduced the backing-off hard waste volume of dresser, practices thrift the yarn, for user reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a view from direction B of fig. 1.

Number in the figure: 1. the yarn guide device comprises a frame, 2 parts of a bracket, 3 parts of a warp beam, 4 parts of a support bearing, 5 parts of a driven gear, 6 parts of a servo motor, 7 parts of a driving gear, 8 parts of yarn, 9 parts of a first guide roller, 10 parts of a tension roller and 11 parts of a second guide roller.

Detailed Description

The invention will be further described with reference to the examples (figures):

as shown in fig. 1 and 2, the active unwinding device for warp beam of slasher of the present invention comprises a frame 1 for placing a warp beam bracket 2 and a warp beam 3 placed on the bracket 2 through a support bearing 4, respectively mounted on both sides of the top, wherein a transmission device for driving the warp beam 3 to rotate in the unwinding direction of yarn 8 is mounted at one end of the warp beam 3; the yarn 8 passes through a yarn tension detection device which is arranged at the lower part of the frame and consists of a first guide roller 9, a tension roller 10 provided with a tension detection sensor and a second guide roller 11, and the yarn is actively fed forwards with constant unwinding tension according to the unwinding direction; the tension detection sensor and the transmission device are respectively connected with the control system in an electric connection mode.

The first guide roller 9 is arranged below the tension roller 10, and the second guide roller 11 is arranged right below the tension roller 10.

As shown in fig. 2 and 3, the transmission device is composed of a driven gear 5 which is arranged at one end of the beam 3 and is used for transmitting power, and a driving gear 7 which is meshed with the driven gear 5 and is arranged on a power output shaft of a servo motor 6. Furthermore, the transmission device controls the rotating speed of the warp beam along the yarn unwinding direction, so as to control the tension of the unwound yarn and realize the active unwinding of the yarn from the warp beam.

Claims

1. The utility model provides a be applicable to dresser warp beam initiative unwinding device which characterized in that: the warp beam unwinding device comprises a rack and warp beams, wherein the rack is used for placing a warp beam bracket, the warp beams are placed on the bracket through a supporting bearing, and a transmission device used for driving the warp beams to rotate in the yarn unwinding direction is arranged at one end of each warp beam; the yarn passes through a yarn tension detection device which is arranged at the lower part of the frame and consists of a first guide roller, a tension roller provided with a tension detection sensor and a second guide roller, and the yarn is actively fed forwards with constant unwinding tension in the unwinding direction; the tension detection sensor and the transmission device are respectively connected with the control system in an electric connection mode.

2. The active unwinding device suitable for the warp beam of the slasher according to claim 1, characterized in that: the transmission device consists of a driven gear which is arranged at one end of the warp beam and used for transmitting power and a driving gear which is meshed with the driven gear and arranged on a power output shaft of the servo motor.

3. The active unwinding device suitable for the warp beam of the slasher according to claim 1, characterized in that: the first guide roller is arranged below the side of the tension roller, and the second guide roller is arranged under the tension roller.