JP2003113543A - Doffing system for false-twist textured yarn production plant and false-twist textured yarn production system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a doffing system including doffers exclusive of respective false twisters so that the processing conditions of the respective false twisters are not affected each other. SOLUTION: This doffing system has the following scheme and advantage: in a false-twist textured yarn production plant where a plurality of false twisters 101, 102 and 103 each mounted with a plurality of spindles for producing false- twist textured yarns are installed, each of the false twisters is exclusively equipped with one doffer 15; therefore the doffer 15 is governed by only the processing conditions of the corresponding false twister and does not be affected by the processing conditions of the other false twisters 101-103; consequently, for each of the false twisters 101-103, a doffing can be performed independently at a proper timing, and optimum processing conditions (production rate) can be set for the respective false twisters, thus improving false-twist textured yarn productivity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus in which a plurality of false twisting machines having a plurality of weights are arranged in parallel, and doffing is not affected by the processing conditions of other false twisting machines. System and false twisted yarn production system.

[0002]

2. Description of the Related Art A false twisting machine has a large number of false twisting units 12 each having a plurality of take-up winders arranged in a back-to-back center, as shown in the overall layout of the false twisting yarn production plant in FIG. Are located in the respective passages 14, 14
A primary heater and a creel stand 1 are arranged so as to sandwich it. In each weight, the yarn fed out from the creel stand by the feed roller was heated to a drawing temperature by a primary heater, put into a twisted state by a false twisting device such as a nip twister, and then reheated by a secondary heater. After that, it is wound into a false twisted yarn package by a take-up winder. The false-twisted yarn package that has been fully wound by the take-up winder is taken out by the doffing device 15 that travels back and forth in the passages 14, 14, and an empty paper tube is supplied to the take-up winder and threaded. It The taken out package is conveyed to a predetermined position by, for example, the rotary peg 16 and taken out.

In a false twisting yarn production factory, a plurality of false twisting machines having the above-mentioned structure are installed side by side in the factory, and the doffing device 15 takes charge of these plural false twisting machines. It is done like this. Then, from the home position shown by the solid line in FIG. 4, the doffing control device 19 specifies the false twisting machine at the doffing timing, the first traveling path A that travels to that position, and the corresponding false twisting process. It reciprocates along a second traveling path B provided in the passages 14 and 14 in front of and behind the machine to sequentially doff all the weights of the corresponding false twisting machine.

The time required for doffing one spindle is fixed, and the time required for doffing one false twisting machine is also determined by the number of spindles. In contrast to the time required for doffing one false twisting machine, the time from the start of winding the false twisted yarn package to the winding (winding time) is extremely long. The conventional doffing system uses this time difference to shift the doffing timing of the false twisting machine in the factory for each machine stand, and one doffing device is used to sequentially turn multiple false twisting machines. I try to doage.

[0005]

However, the doffing system can be used only when the production time of the false twisting yarn package in each false twisting machine is constant for all machine bases. If there are machine bases having different types of yarns and different package production times, there is a problem in that doffing timings are duplicated among a plurality of machine bases. In order to prevent this, the production time must be adjusted to the machine with the longest production time, or the operator must assist the doffing work of the overlapping false-twisting machine bases. The result was an increase in power.

[0006]

SUMMARY OF THE INVENTION The present invention has been made by improving and eliminating the conventional problems described above. By disposing a doffing device dedicated to each false twisting machine, other temporary twisting machines are provided. It is intended to provide a doffing system and a false twisting yarn production system which are not affected by the processing conditions of the twisting machine.

The means adopted by the present invention in order to solve the above-mentioned problems are, in equipment provided with a plurality of false twisting machines, each of which is provided with a plurality of weights for producing false twisted yarns. This is a doffing system in a false twisting yarn production factory, characterized in that one doffing device is arranged exclusively for the twisting machine. The doffing device is restricted only by the processing conditions of the corresponding false twisting machine, and is not affected by the processing conditions of other false twisting machines. Therefore, each false twisting machine can perform doffing independently at free timing, and can set optimal processing conditions (production speed) for each machine stand, thereby improving productivity.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The structure of the present invention will be described below based on the embodiments of the invention shown in the drawings. 1 to 3 relate to a doffing system of a false twisting machine according to an embodiment of the present invention. FIG. 1 is a plan view showing an example of equipment arrangement in a false twisting yarn production factory, and FIG. A front view of the twisting machine, and FIG. 3 is a partially enlarged front view thereof. As shown in FIG. 1, a false twisting yarn production plant is provided with a plurality of false twisting machines each having a plurality of weights for producing false twisting yarns. In FIG. 1, false twisting machines 101, 102, 103
3 shows the case where three units are arranged in parallel. False twisting machine 1
01 to 103 are as shown in the front view of FIG. 2 and the partially enlarged front view of FIG. 3, and the yarn 3 delivered from the yarn supply package 2 in the creel stand 1 is the first feed roller 4 and the second feed. The roller tension is maintained by the roller 5 so that the yarn can be drawn. A false twisting device 6 such as a nip twister is provided on the downstream side between these two sets of feed rollers 4 and 5, and the yarn 3 upstream of the false twisting device 6 is in a twisted state. The first and second feed rollers 4, 5
A primary heater 7 for heat fixation is provided on the upstream side between the two so as to heat the twisted yarn 3 to the drawing temperature.

Further, a third feed roller 8 is provided on the downstream side of the second feed roller 5, and a secondary heater 9 is provided between these two sets of feed rollers 5, 8. , Reheat treatment is performed. The yarn 3 after the reheat treatment is finished into a false twist textured yarn package 11 by the take-up winder 10. One unit for false twisting the yarn 3 of the yarn supplying package 2 to produce a false twisted yarn package is a weight, and a plurality of weights are arranged side by side in a row. In this embodiment, the take-up winders 10 for three spindles are arranged in upper and lower three stages in the main body unit 13 including the devices after the false twisting device 6.

Since the primary heater 7 is particularly tall, the primary heater 7 is disposed separately from the main body unit 13 after the false twisting device 6 so as to face it, and the passage 14 is provided between them.
This makes threading operations and maintenance work easier. A doffing device 15 is arranged in the passage 14 so as to be movable along the main body unit 13. Also, with the passage 14 side of the primary heater 7,
Between the creel stand 1 on the opposite side, a rotary peg 16 that is operated in an endless manner is arranged. The doffing device 15 takes out the package 11 that has been fully wound by the take-up winder 10 from the take-up winder 10 and attaches an empty paper core to the take-up winder 10 to thread the package 11 and take out the package 11. Transferred to the rotary peg 16. The package 11 of the rotary peg 16 is pulled out at one end of the main body unit 13 and collected.

2 and 3, reference numeral 17 is a power supply trolley wire attached to the passage 14 side of the primary heater 7, and reference numeral 18 is a power receiving device for receiving necessary power and signals from the trolley wire 17. Yes, and is attached to the doffing device 15.

Each of the false twisting machines 101 to 103 has the above-mentioned configuration except for the doffing device 15 and is arranged so that the main unit 13 is back to back. The doffing control device 19 is provided at the end (the other end) of the main body unit 13 for each machine base. The control device 19 controls the winding time from the start of winding of the false twisted yarn package related to the corresponding false twisting machine to the winding time, the doffing time from the start of doffing to the completion of doffing, and the operation start time (first time). When inputting the start time which is the doffing start time), the next doffing time of the corresponding false twisting machine is predicted and the doffing device 15 is instructed to prepare for doffing. ing.

In this embodiment, therefore, one doffing device 15 is provided for each false twisting machine 101-103 and dedicated use is performed. Each doffing device 15 is supplied with power via the trolley wire 17 and the power receiving device 18, and exchanges signals with the doffing control device 19 of the corresponding false twisting machine. Therefore, the runway of the doffing device 15 is only provided so that the runway B can reciprocate on the front and rear surfaces of the corresponding false twisting machine.
A conventional traveling path A for moving between the false twisting machines (see FIG. 4).
(See) there is no equivalent.

Each doffing device 15 exchanges signals with the doffing control device 19 of the corresponding false twisting machine, and when the doffing timing comes, the home shown by the solid line in FIG. Enter the road B from the position. Then, the false-twisted yarn package 11 of the fully wound take-up winder 10 is taken out, an empty paper tube is supplied to the take-up winder 10, and the fully-wound package 11 is transferred to the rotary peg 16. In this way, after doffing from the weight on the front side to the weight on the rearmost side in this manner, the road B is turned to return to the home position.

In the false twist textured yarn production factory shown in FIG. 1, the machine base 101 produces the yarn at the processing speed X. The machine base 102 has a processing speed Y, and the machine base 103 has a processing speed Z. Each processing speed X, Y, Z is set to the optimum processing speed. The full winding diameter of the false twist textured yarn package is the same for all machine bases 101, 102 and 103, and therefore the winding time of each machine base differs depending on the processing speeds X, Y and Z. The doffing interval (time from the last doffing to the next doffing) of the doffing device 15 of each machine stand 101, 102, 103 is set corresponding to each processing speed (each hoisting time). In each of the machine bases 101, 102 and 103, the processing speed can be set individually without being influenced by the other doffing device 15 mutually. Therefore, in each false twisting machine, the production speed (processing production) can be set according to the type of yarn to be processed, and it is necessary to consider the adjustment with the production speed in other false twisting machines. Absent. Therefore, the processing speed can be optimally set on each machine base, and it is not necessary to forcibly reduce the processing speed, and the productivity can be improved.

[0016]

As described above, according to the present invention,
In a facility in which a plurality of false twisting machines including a plurality of weights for producing false twisted yarns are arranged, one doffing device is exclusively provided for each false twisting machine. The doffing device is
It is restricted only by the processing conditions of the corresponding false twisting machine, and is not affected by the processing conditions of other false twisting machines. Therefore, each false twisting machine can do the doffing independently at an appropriate timing, the optimum processing conditions (production speed) can be set for each machine stand, and the productivity can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an arrangement of devices of a doffing system in a false twisting yarn production factory according to an embodiment of the present invention.

FIG. 2 is a front view of the false twisting machine according to the embodiment of the present invention.

FIG. 3 is a partially enlarged front view of the false twisting machine according to the embodiment of the present invention.

FIG. 4 is a plan view showing an arrangement of devices of a doffing system in a conventional false twisting yarn production factory.

[Explanation of symbols]

1 ... creel stand, 2 ... package, 3 ... thread, 4 ...
First feed roller, 5 ... Second feed roller, 6 ... False twisting device, 7 ... Primary heater, 8 ... Third feed roller, 9
… Secondary heater, 10… Take-up winder, 11…
Package, 13 ... False twisting machine stand, 14 ... Passage, 15 ...
Doffing device, 16 ... Rotary peg, 17 ... Trolley wire, 18 ... Power receiving device, B ... Travel path, 101-103 ... False twisting machine

Claims (3)

[Claims] 1. In a facility having a plurality of false twisting machines, each of which is provided with a plurality of weights for producing false twisted yarns, one doffing device is exclusively allocated to each false twisting machine. The doffing system at the false twisted yarn production plant, which is characterized by being installed. 2. A ball for a false twisting yarn production plant according to claim 1, wherein a doffing control device for controlling the doffing device of each false twisting machine is provided for each false twisting machine. Lifting system. 3. A plurality of false twisting machines, each of which is provided with a plurality of weights for producing false twisted yarns, are arranged, and each false twisting machine produces a yarn at an optimum production speed for a yarn to be processed. In a false twisting yarn production system in which at least one of the plurality of false twisting machines is set to a production speed different from that of other machines, a doffing device is arranged for each false twisting machine, and a doffing device for each machine is provided. The false twisting yarn production system is characterized in that the doffing timing is set according to the optimal production speed of each machine stand.