EP1600413B1 - Service carriage control system - Google Patents

Service carriage control system Download PDF

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Publication number
EP1600413B1
EP1600413B1 EP20050005494 EP05005494A EP1600413B1 EP 1600413 B1 EP1600413 B1 EP 1600413B1 EP 20050005494 EP20050005494 EP 20050005494 EP 05005494 A EP05005494 A EP 05005494A EP 1600413 B1 EP1600413 B1 EP 1600413B1
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EP
European Patent Office
Prior art keywords
carriage
yarn splicing
service
work area
processing unit
Prior art date
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EP20050005494
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German (de)
English (en)
French (fr)
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EP1600413A3 (en
EP1600413A2 (en
Inventor
Hiroyuki Susami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Machinery Ltd
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Murata Machinery Ltd
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Publication date
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Publication of EP1600413A2 publication Critical patent/EP1600413A2/en
Publication of EP1600413A3 publication Critical patent/EP1600413A3/en
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Publication of EP1600413B1 publication Critical patent/EP1600413B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/005—Service carriages travelling along the machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a service carriage control system that operates in response to a request for a service made by one of a plurality of processing units, to cause a service carriage to run to the unit to provide the unit with the service.
  • the Unexamined Japanese Patent Publication (Tokkai-Hei) 11-107078 discloses a spinning machine having a large number of spinning units installed in a line, and the spinning units are an example of (yarn) processing units. While the spinning machine is in operation, when a spun yarn is broken in any of the spinning units or is forcibly cut owing to a detected yarn defect such as slab, a yarn splicing carriage is run and then stopped in front of that unit. Then, a knotter, a splicer, or the like splices a lower yarn drawn from a winding package to an upper yarn of a draft device side.
  • the Unexamined Japanese Patent Publication (Tokkai-Hei) 11-107078 also refers to the case in which two such yarn splicing carriages are provided.
  • the Unexamined Japanese Patent Publication (Tokkai-Hei) 6-108331 discloses a configuration in which a yarn splicing carriage and a roving yarn splicing carriage run on the same running rail.
  • the yarn splicing carriage and the roving yarn splicing carriage are each provided with an obstacle sensor and controlled so that priority is always given to the roving yarn splicing carriage over the yarn splicing carriage in running.
  • the Unexamined Japanese Patent Publication (Tokkai-Hei) 11-107078 discloses the configuration in which the two yarn splicing carriages are provided. However, it does not refer to how the two yarn splicing carriages share processing if any spinning unit makes a yarn splicing request. On the other hand, the spinning units do not make yarn splicing requests in a specified order. The frequency at which yarn breakage occurs varies with the spinning units. Consequently, for example, yarn splicing requests may concentrate on one carriage, which thus cannot process the yarn splicing requests promptly. This reduces working efficiency to prevent the two yarn splicing carriages from being efficiently operated.
  • US-A-4 901 246 describes a method and apparatus for clearing faults at work stations of a textile machine in which identical robots are disposed on a common track along the textile machine.
  • the robots are controlled by a central control unit so as to be allocated to a respective sub-section of the track.
  • the allocation is performed periodically so as to optimize the operation of each robot for fault clearing purposes.
  • the present invention is made in view of these circumstances. It is an object of the present invention to provide a service carriage control system that provides services using a plurality of service carriages (for example, yarn splicing carriages such as those described above) running along the same running path, wherein the system can provide prompt services and can be efficiently operated.
  • a service carriage control system that provides services using a plurality of service carriages (for example, yarn splicing carriages such as those described above) running along the same running path, wherein the system can provide prompt services and can be efficiently operated.
  • the present invention provides a control device for controlling at least two service carriages to each of which a work area is preassigned and which run along the same running path of a plurality of processing units installed in a line to stop the service carriages in response to service requests of the processing units at the service requesting processing units.
  • the control device comprises a central control device connected to a control device in each processing unit and also connected to a control device in each service carriage and each service carriage comprises sensing means for sensing its position along the path.
  • the control device performs a control such that the service carriage covering a work area, to which a service requesting processing unit belongs, is dispatched thereto, and if no service request processing unit occurs in the adjacent work area, performs, on the basis of a calculation of the current position of the service carriage for the adjacent work area and the distance to the service requesting processing unit, a withdrawing control that causes the service carriage of the adjacent work area to run in a direction in which the service carriage moves away from the service requesting processing unit when the distance that is a result of the calculation has at most a predetermined value.
  • This configuration controls the running directions of not only the service carriage covering the work area to which the service requesting unit belongs but also the service carriage covering the adjacent area. Consequently, the interference between the service carriages is suppressed to allow services to be generally smoothly and efficiently provided.
  • the control device performs the control that causes the adjacent carriage to run in the direction in which it moves away from the service requesting processing unit (withdrawing control). This ensures a distance between the service carriage running toward the service requesting unit and the adjacent carriage. Accordingly, the simple control avoids the interference between the carriages.
  • the control device preferably comprises an approach sensing means on each service carriage. If a service requesting processing unit occurs in an arbitrary work area, the control means dispatches the service carriage covering the work area to which the processing unit belongs, to the service requesting processing unit. Even if the approach sensing means senses that the service carriage running toward the service requesting processing unit is approaching another service carriage, when the withdrawing control is being or can be performed on the latter service carriage, the control device performs a control that avoids stopping the running of the service carriage toward the service requesting processing unit.
  • the control means does not stop the second service carriage with the expectation that the withdrawing control is being or is to be performed on the second service carriage. This reasonable control enables the arbitrary service carriage to reach the intended service requesting unit in a reduced time.
  • control device preferably, even if the approach sensing means senses that the service carriage running in the arbitrary work area toward the service requesting processing unit is approaching another service carriage, when the withdrawing control is being or can be performed on the latter service carriage, the control device performs a control that reduces the speed at which the service carriage runs toward the service requesting processing unit.
  • the arbitrary service carriage decelerates to gain time before the second service carriage completes the withdrawing control. This makes it possible to avoid collisions. Further, once the second service carriage completes the withdrawing control and the approach sensing means stops sensing the second service carriage, the arbitrary service carriage can recover from the decelerating state and return quickly to the initial running speed. Consequently, the arbitrary service carriage can reach the intended service requesting unit in a short time.
  • control device preferably calculates, if a service requesting processing unit occurs, the distance between the position of the processing unit and the end of the work area to which it belongs, and causes, when the distance has at most a predetermined value, the service carriage having finished the service to run toward the center of the work area to which the service requesting unit belongs.
  • this serves to avoid stopping a service carriage near the boundary between work areas. It is thus possible to reliably inhibit carriages from interfering with each other near the boundary between work areas.
  • FIG. 1 shows a spinning machine 1 comprising a large number of spinning units (processing units) 3 installed in a line.
  • the spinning machine 1 further comprises a first yarn splicing carriage 11 and a second yarn splicing carriage 12 which can run in a direction in which the spinning units 3 are arranged, and a central control device 4 that controls the spinning units 3, the first yarn splicing carriage 11 and the second yarn splicing carriage 12.
  • each spinning unit 3 is mainly composed of a draft device, a spinning section, a yarn defect removing device which detects a yarn defect such as slab and which then forcibly cuts the yarn, a winding device, and the like.
  • the spinning section spins a bundle of fibers transferred by the draft device to generate a yarn.
  • the winding device winds the yarn to form a package.
  • Each of the first yarn splicing carriage 11 and second yarn splicing carriage 12 comprises running wheels (not shown in the drawings) that run on a common rail 6 laid in a main body of the spinning machine 1.
  • the running wheels are driven by a running motor 22 to run the yarn splicing carriages 11, 12.
  • Each of the yarn splicing carriages 11, 12 comprises a yarn splicing device such as a knotter or a splicer. If in any of the spinning units 3, the yarn is broken while a package is being formed or the yarn is cut as a result of detection of a yarn defect, either the first yarn splicing carriage 11 or the second yarn splicing carriage 12 runs to and stop in front of that spinning unit 3.
  • the yarn splicing carriage 11 or the yarn splicing carriage 12 then splices a yarn of the package side to a yarn of the spinning device side so that the spinning unit 3 can restart spinning.
  • each of the yarn splicing carriages 11, 12 is provided with a collision preventing sensor (approach sensing means) 7. If the collision preventing sensor 7 senses something approaching the other yarn splicing carriage, the control devices 51, 52 perform control that stops the running yarn splicing carriage or causes the yarn splicing carriage at a stop to run so as to move away from the other yarn splicing carriages.
  • the central control device 4 provided in the main body of the spinning machine 1, is connected via a signal line to a control device 53 provided in each of the large number of spinning units 3.
  • This configuration enables the central control device 4 to receive, from the spinning unit 3, signals concerning the status of the spinning unit 3.
  • the signals concerning the status of the spinning unit 3 include, for example, one indicating that the need for yarn splicing has resulted from yarn breakage (yarn splicing request signal), one indicating that the need for doffing has resulted from a full package, and one indicating that the spinning unit 3 has been stopped owing to a certain error.
  • consecutive unit numbers 1, 2, 3, ... are assigned to the spinning units 3 starting at one end of the frame of the spinning machine 1.
  • the control device 53 of each spinning unit 3 memorizes the corresponding number.
  • the information on the unit number is contained in a yarn splicing request signal or the like transmitted by the spinning unit 3 to the central control device 4. This enables the central control device 4 to recognize the number of a spinning unit 3 now requesting yarn splicing.
  • the figure does not show all the spinning units 3.
  • the spinning machine 1 according to the present invention comprises 34 spinning units 3 numbered 1 to 34.
  • the central control device 4 is connected via signal lines to the control device 51 of the first yarn splicing carriage 11 and to the control device 52 of the second yarn splicing carriage 12.
  • the central control device 4 can thus transmit various pieces of information to the control devices 51, 52, or conversely, acquire various pieces of information from the yarn splicing carriages 11, 12.
  • each of the two yarn splicing carriages 11, 12 comprises, for example, the running motor 22 that drives the running wheels (not shown in the drawings) of the yarn splicing carriages 11, 12, the collision preventing sensor 7, and a dog sensor 23 that senses a dog (not shown in the drawings) provided on each spinning unit 3, as shown in Figure 2 .
  • control devices 51, 52 of the yarn splicing carriages 11, 12, respectively drive the running motors 22 to run the yarn splicing carriages 11, 12 toward a requesting spinning unit 3.
  • the control device 51, 52 position and stop the yarn splicing carriages 11, 12 at the spinning unit 3.
  • the control devices 51, 52 then drive the yarn splicing devices 21 for yarn splicing.
  • the first yarn splicing carriage 11 and the second yarn splicing carriage 12 comprise output sections 71, 72, respectively, which output signals to a sensor 61 in the spinning unit 3.
  • the output section 71 (72) outputs a signal to the sensor 61 of the spinning unit 3 located opposite the stop position.
  • the spinning unit 3 corresponding to the sensor 61 having received the signal outputs a signal containing its own unit number to the control device 51 (52) of the yarn splicing carriage 11 (12) at a stop, via the central control device 4.
  • the yarn splicing carriage 11 (12) can recognize at which of the plurality of spinning units 3 the yarn splicing carriage 11 (12) is now stopped (that is, their own positional information).
  • the yarn splicing carriages 11, 12 start running from their positions, they can recognize the current running positions by counting sensing of the dog sensor 23 on the basis of the positional information.
  • work areas A1, A2 for the spinning units 3 are assigned to the two yarn splicing carriages 11, 12, respectively, so as not to overlap.
  • yarn splicing operations are divided among the yarn splicing carriages, for example, the first splicing carriage 11 performs a yarn splicing operation on the spinning units 3 nos. 1 to 17, and the second yarn splicing carriage 12 performs a yarn splicing operation on the spinning units 3 nos. 18 to 34.
  • Information on the assignment of the work areas A1, A2 is stored in the storage devices 51, 52 of the yarn splicing carriages 11, 12.
  • the control device of each of the yarn splicing carriages 11, 12 is configured as a well-known microcomputer having a CPU, a ROM, a RAM, and the like (not shown in the drawings).
  • the ROM or the like stores a program such as the one the flow of which is shown in Figure 3 . That is, hardware such as the CPU cooperates with software such as that shown in Figure 3 to allow the control devices 51, 52 to function as calculating means and control means. Exactly the same program is executed on the first yarn splicing carriage 11 and the second yarn splicing carriage 12.
  • the yarn splicing carriages 11, 12 first determine in step S101 whether or not a yarn splicing request has been made. Specifically, it is assumed that a yarn is broken in any (for example, no. 16) of the spinning units 3 nos. 1 to 34 and that this unit (yarn splicing requesting unit) transmits a yarn splicing request signal to the central control device 4. Then, upon receiving the yarn splicing request signal, the central control device 4 transmits a signal to the control devices 51, 52 of the yarn splicing carriages 11, 12, the signal indicating that the spinning unit 3 no. 16 is requesting yarn splicing. In step S101, the yarn splicing carriages 11, 12 check whether or not they have received this signal. If the yarn splicing carriages 11, 12 have not received the signal, they will wait until they receive one.
  • the central control device 4 transmits the corresponding signal not only to the first yarn splicing carriage 11 but also to the second yarn yarn splicing carriage 12. Accordingly, the first yarn splicing carriage 11 can recognize the position of a yarn splicing requesting unit belonging to its work area A1. Further, the second yarn splicing carriage 12 can recognize the position of the yarn splicing requesting unit belonging to the work area A1, which is adjacent to its work area A2.
  • step S101 if the signal has been received from the central control device 4, the control devices 51, 52 of the yarn splicing carriages 11, 12 analyze the signal to acquire information indicating the number of the spinning unit 3 making a yarn splicing request (the position at which the yarn splicing requesting unit is occurring). Then, the yarn splicing carriages 11, 12 check the information against the information on the assignment of their own work areas to determine whether or not the yarn splicing requesting unit belongs to their own work areas. The processing in step S102 has been described.
  • the yarn splicing requesting unit is the spinning unit 3 no. 16, which belongs to the work area of the first yarn splicing carriage 11 (Al; nos. 1 to 17). Accordingly, as a result of the processing in step S102, the first yarn splicing carriage 11 determines that the yarn splicing requesting unit belongs to its work area A1. The first yarn splicing carriage 11 then shifts to processing in step S103. On the other hand, as a result of the processing in step S102, the second yarn splicing carriage 12 determines that the yarn splicing requesting unit does not belongs to its work area (A2; nos. 18 to 34). The second yarn splicing carriage 12 then shifts to processing in step S110.
  • step S103 the running motor 22 is driven to cause the first yarn splicing carriage 11 to start running toward the splice requesting unit. Specifically, the first yarn splicing carriage 11 starts running toward the spinning unit 3 no. 16.
  • the first yarn splicing carriage 11 runs while using the collision preventing sensor 7 to monitor whether or not it is close to the adjacent second yarn splicing carriage 12 (S104).
  • the second yarn splicing carriage 12 is stopped at the position of the spinning unit 3 no. 24 and is away from the first yarn splicing carriage 11. Accordingly, the collision preventing sensor 7 does not sense the second yarn splicing carriage 12.
  • the first yarn splicing carriage 11 continues to run (S105), stops at the spinning unit 3 no. 16, which is the yarn splicing requesting unit, and then performs a yarn splicing operation (S106). After the yarn splicing, the first yarn splicing carriage 11 returns to step S101 to wait for a new yarn splicing request while remaining at a stop.
  • the second yarn splicing carriage 12 shifts from step S102 to step S110 to calculate and acquire the distance between the yarn splicing requesting unit and itself.
  • the distance corresponds to
  • 8 units.
  • the second yarn splicing carriage 12 determines whether or not the distance determined is equal to three or less units (S111). If the distance is equal to three or less units, the second yarn splicing carriage 12 withdraws and moves away from the yarn splicing requesting unit a distance equal to at least four units (withdrawing control; S112). In the example shown in Figure 1 , the distance is equal to eight units, (exceeds three units) the second yarn splicing carriage 12 executes the withdrawing movement but maintains the stopped state. The second yarn splicing carriage 12 returns to step S101 to wait for a new yarn splicing request.
  • the spinning unit 3 no. 16 makes a yarn splicing request
  • the first yarn splicing carriage 11 which covers the work area A1 to which the spinning unit no. 3 belongs, runs to and stops at the spinning unit 3 no. 16.
  • a yarn splicing is carried out.
  • the second yarn splicing carriage 12 remains at a stop.
  • step S101 the first yarn splicing carriage 11 senses the generation of a yarn splicing request and proceeds to step S102.
  • the first yarn splicing carriage 11 then checks whether or not the spinning unit 3 no. 18, requesting a yarn splicing, is located within its work area A1. In the example shown in Figure 5 , the yarn splicing requesting spinning unit 3 is outside the work area of the first yarn splicing carriage 11 (A1; nos. 1 to 17).
  • step S110 the processing by the first yarn splicing carriage 11 proceeds to step S110 to calculate the distance between the yarn splicing requesting unit and the first yarn splicing carriage 11. Since the yarn splicing requesting unit is the spinning unit 3 no. 18 and the first yarn splicing carriage 11 is stopped at the spinning unit 3 no. 16,
  • 2 units.
  • step S111 the distance is determined to be equal to at least three units. Consequently, in step S112, the first yarn splicing carriage 11 withdraws and moves away from the yarn splicing requesting unit a predetermined distance. In the present embodiment, the distance for withdrawing movement is predetermined to be equal to four units.
  • the first yarn splicing carriage 11 waiting while remaining stopped at the position of the spinning unit 3 no. 16 moves away from the spinning unit 3 no. 18, that is, leftward in Figure 5 , a distance equal to four units.
  • the first yarn splicing carriage 11 then stops at the position of the spinning unit 3 no. 12 as shown in Figure 6 .
  • the control of the second yarn splicing carriage 12 will be described.
  • the second yarn splicing carriage 12 senses the generation of a yarn splicing request in step S101 in Figure 3 .
  • the second yarn splicing carriage 12 then checks whether or not the yarn splicing requesting unit is within its work area A2.
  • the yarn splicing requesting unit is the spinning unit 3 no. 18, which is included in the work area of the second yarn splicing carriage 12 (A2; nos. 18 to 34). Accordingly, as a result of the processing in step S103, the second yarn splicing carriage 12 starts to run toward the spinning unit 3 no. 18.
  • the first yarn splicing carriage 11 stopped at the position of the spinning unit 3 no. 16 moves as previously described in the direction in which it moves away from the yarn splicing requesting unit (no. 18) at almost the same time when the second yarn yarn splicing carriage 12 starts to run (withdrawing movement in step S111).
  • the second yarn splicing carriage 12 runs to the yarn splicing requesting unit (no.
  • the first yarn splicing carriage 11 does not obstruct the second yarn splicing carriage 12. This withdrawing control for avoiding interference enables the second yarn splicing carriage 12 to move fast to the yarn splicing requesting unit (no. 18). This improves working efficiency.
  • the second yarn splicing carriage 12 which covers the work area A2 to which the yarn splicing requesting unit belongs, is dispatched to the yarn splicing requesting unit (S103 to S105).
  • the first yarn splicing carriage 11 which covers the work area (adjacent area) A1 adjacent to the work area A2 to which the unit belongs, has its running direction controlled so that the first yarn splicing carriage 11 runs away from the yarn splicing requesting unit (no. 18) when the predetermined condition (S111) is met (S112).
  • control is preformed not only on the second yarn splicing carriage 12 for the work area A2, to which the yarn splicing requesting unit belongs, but also on the first yarn splicing carriage 11 for the adjacent work area A1.
  • This suppresses the interference between the yarn splicing carriages 11, 12. It is thus possible to generally improve the efficiency of yarn splicing operations.
  • the distance between the current position of the second yarn splicing carriage 12, which covers the adjacent area A2, and the yarn splicing requesting unit is calculated (S110). Then, the running direction of the second yarn splicing carriage 12 is controlled on the basis of the result of the calculation (S111, S112). Consequently, the simple control makes it possible to suppress the interference between the yarn splicing carriages 11, 12.
  • the result of the calculation indicates that the distance has at most a predetermined value, the first yarn splicing carriage 11 is subjected to the withdrawing control so as to move away from the yarn splicing requesting unit (S111, S112). This ensures a distance between the second yarn splicing carriage 12 dispatched to the yarn splicing requesting unit and the first yarn splicing carriage 11, as shown in Figure 6 .
  • the first yarn splicing carriage 11 executes the withdrawing movement in step S112 in accordance with the flow in Figure 3 .
  • the second yarn splicing carriage 12 may run to the spinning unit 3 no. 18 in accordance with the processing in step S103.
  • the second yarn splicing carriage 12 may thus near the first yarn splicing carriage 11 and be sensed by the collision preventing sensor 7 ( Figure 8 ).
  • the second yarn splicing carriage 12 determines in step S104 that the collision preventing sensor 7 is sensing another yarn splicing carriage.
  • first yarn splicing carriage 11 first yarn splicing carriage 11
  • second yarn splicing carriage 12 does not stop running to the spinning unit 3 no. 18 but only reduces its speed (S108). Then, once the first yarn splicing carriage 11 completes the withdrawing movement and the collision preventing sensor 7 stops sensing the first yarn splicing carriage 11, the second yarn splicing carriage 12 returns to the normal running (S104, S105). The second yarn splicing carriage 12 then reaches the spinning unit 3 no. 18 for yarn splicing (S106).
  • the service carriage control system performs control such that the second yarn splicing carriage 12 is not stopped with the expectation that the first yarn splicing carriage 11 is executing or is to execute the withdrawing movement. This enables faster movement to the yarn splicing requesting unit, thus further improving the working efficiency.
  • the second yarn splicing carriage 12 (first yarn splicing carriage 11) can determine whether or not the first yarn splicing carriage 11 (second yarn splicing carriage 12) is executing or can execute the withdrawing movement, by receiving an operational status signal for the first yarn splicing carriage 11 (second yarn splicing carriage 12) via the central control device 4. For example, if the power supply to the first yarn splicing carriage 11 is off, the second yarn splicing carriage 12 determines that the first yarn splicing carriage 11 cannot execute the withdrawing movement.
  • the second yarn splicing carriage 12 reduces it running speed.
  • the second yarn splicing carriage 12 thus waits until the withdrawing movement of the first yarn splicing carriage 11 is completed (S107, S108). Consequently, the speed is reduced to gain time to facilitate the avoidance of collision of the second yarn splicing carriage 12 against the first yarn splicing carriage 11. Further, once the withdrawing movement of the first yarn splicing carriage 11 is completed and the collision preventing sensor 7 stops sensing the first yarn splicing carriage 11, the second yarn splicing carriage 12 can recover from the reduced speed state and return quickly to the normal speed (S104, S105). The second yarn splicing carriage 12 can reach the yarn splicing requesting unit in a short time.
  • the second yarn splicing carriage 12 stops running in order to prevent collisions (S107, S109).
  • the second yarn splicing carriage 12 may execute the withdrawing movement.
  • the service carriage control system performs control that brings the second yarn splicing carriage 12 to an emergency stop or executes the withdrawing movement.
  • a predetermined value for example, a value equal to four units
  • control in Figure 9 is obtained by adding processing in steps S113, S114 to the processing in step S106 in the example of control shown in Figure 3 .
  • the first yarn splicing carriage 11 determines whether or not the yarn splicing requesting unit on which it has performed a yarn splicing operation has occurred near the end of its work area A1 (specifically, whether or not the yarn splicing requesting unit is located within three units from the end).
  • the yarn splicing requesting unit is the spinning unit 3 no. 16 and the work area A1 of the first yarn splicing carriage 11 includes the spinning units 3 nos. 1 to 17. Accordingly, the distance between the end of the work area A1 (no. 17) and the yarn splicing requesting unit (no. 16) is
  • 1 unit.
  • the distance is equal to less than three units. Therefore, the first yarn splicing carriage 11 shifts to the processing in step S114 to run toward the center of its work area A1 (in the example shown in Figure 4 , toward the left end of the drawing) by a distance equal to four units. In other words, the first yarn splicing carriage 11 performs a yarn splicing operation on the spinning unit 3 no. 16 and then immediately runs leftward in Figure 4 by the distance equal to four units. Then, as shown in Figure 10 , the first yarn splicing carriage 11 stops in front of the spinning unit 3 no. 12.
  • the first yarn splicing carriage 11 is run toward the center of the work area A1 after the yarn splicing operation has been finished. This avoids stopping the first yarn splicing carriage 11 near the boundary of the work area A1. Consequently, the interference can be reliably inhibited.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP20050005494 2004-05-18 2005-03-14 Service carriage control system Active EP1600413B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004147227A JP4020098B2 (ja) 2004-05-18 2004-05-18 サービス台車制御システム
JP2004147227 2004-05-18

Publications (3)

Publication Number Publication Date
EP1600413A2 EP1600413A2 (en) 2005-11-30
EP1600413A3 EP1600413A3 (en) 2005-12-14
EP1600413B1 true EP1600413B1 (en) 2009-07-08

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EP (1) EP1600413B1 (ja)
JP (1) JP4020098B2 (ja)
DE (1) DE602005015276D1 (ja)

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JP2007284205A (ja) 2006-04-18 2007-11-01 Murata Mach Ltd 自動ワインダー装置、および自動ワインダー装置における玉揚機の制御方法
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JP2013067886A (ja) 2011-09-21 2013-04-18 Murata Mach Ltd 繊維機械
EP2671982A1 (en) 2012-06-08 2013-12-11 Murata Machinery, Ltd. Spinning machine
JP2015059278A (ja) 2013-09-17 2015-03-30 村田機械株式会社 糸巻取機
JP2015059277A (ja) * 2013-09-17 2015-03-30 村田機械株式会社 糸巻取機
JP2015078474A (ja) * 2013-10-18 2015-04-23 村田機械株式会社 繊維機械
JP5979178B2 (ja) * 2014-06-04 2016-08-24 株式会社豊田自動織機 精紡機の繊維束供給停止装置
JP2017109833A (ja) 2015-12-16 2017-06-22 村田機械株式会社 糸巻取装置及び糸巻取システム
JP2018053373A (ja) * 2016-09-26 2018-04-05 村田機械株式会社 紡績機

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DE2454483C2 (de) * 1974-11-16 1986-07-10 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und Vorrichtung zum Betrieb von mehrere Arbeitsstellen einer Textilmaschine bedienenden Arbeitseinrichtungen
DE2736849C3 (de) * 1977-08-16 1983-12-29 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Spinn- oder Zwirnanlage
IN171673B (ja) * 1987-09-24 1992-12-05 Rieter Ag Maschf
JPH04352827A (ja) * 1991-05-30 1992-12-07 Toray Eng Co Ltd 紡績機

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JP2005330596A (ja) 2005-12-02
EP1600413A3 (en) 2005-12-14
DE602005015276D1 (de) 2009-08-20
JP4020098B2 (ja) 2007-12-12
EP1600413A2 (en) 2005-11-30

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