EP0440213A2 - Vorgarnflugfasernsammelsystem für eine Vorrichtung zum Vorgarnspulenauswechseln - Google Patents

Vorgarnflugfasernsammelsystem für eine Vorrichtung zum Vorgarnspulenauswechseln Download PDF

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Publication number
EP0440213A2
EP0440213A2 EP91101231A EP91101231A EP0440213A2 EP 0440213 A2 EP0440213 A2 EP 0440213A2 EP 91101231 A EP91101231 A EP 91101231A EP 91101231 A EP91101231 A EP 91101231A EP 0440213 A2 EP0440213 A2 EP 0440213A2
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EP
European Patent Office
Prior art keywords
chip collecting
roving
bobbin
bobbin replacing
chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91101231A
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English (en)
French (fr)
Other versions
EP0440213B1 (de
EP0440213A3 (de
Inventor
Isao C/O K. K. Toyoda Jidoshokki Seisakusho Asai
Toshinori C/O K. K. Toyoda Hasegawa
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.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP0440213A2 publication Critical patent/EP0440213A2/de
Publication of EP0440213A3 publication Critical patent/EP0440213A3/de
Application granted granted Critical
Publication of EP0440213B1 publication Critical patent/EP0440213B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
    • D01H11/006—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices travelling along the machines

Definitions

  • This invention relates to a roving chip collecting system for a roving bobbin replacing apparatus. More particularly, it relates to a chip collecting system for a bobbin replacing apparatus that performs the operation of replacing the bobbins under delivery using suction pipes.
  • rovings are drawn from bobbins suspended from the creel and fed to drafting parts locating below the creel.
  • these bobbins must be replaced with new roving bobbins.
  • the tail ends of the rovings of new bobbins must be spliced with those of the bobbins under delivery, or the rovings of the new bobbins must be inserted into the drafting parts of the spinning frame.
  • a bobbin replacing apparatus (bobbin changer) has been proposed, for example, in Japanese Unexamined Patent Publication No. 62-57957, which performs the splicing or ending operation and bobbin replacing operation in sequence as it moves from one end to the other end of the spinning frame structure, and has already been put into practical uses.
  • this type of bobbin replacing apparatus the tail ends of the rovings of new full bobbins (stand-by bobbins) are drawn out under suction and spliced with those of the bobbins under delivery (ending operation) by means of an ending device or splicer.
  • the tail ends of the rovings are trimmed so that the length of the rovings protruding from the holders of the splicer may be equal, and the chips of the rovings are collected in a roving chip collecting box or chamber provided in the bobbin replacing apparatus.
  • the chip collecting box is full, the roving chips are designed to be removed therefrom manually by an operator.
  • a primary object of this invention is to provide a chip collecting system for a roving bobbin replacing apparatus, which can perform fully automatically recovery of roving chips from the chip collecting chamber provided in the bobbin replacing apparatus.
  • Another object of this invention is to provide a chip collecting system for a bobbin replacing apparatus, which requires less frequent removal of the roving chips even when the roving chips accumulated in the chip collecting chamber must be recovered manually.
  • a roving chip collecting system for a bobbin replacing apparatus.
  • the bobbin replacing apparatus replaces bobbins under delivery that are suspended from bobbin hangers on a creel of a spinning frame with full bobbins suspended from stand-by bobbin rails extended along the side edges of the creel as the bobbin replacing apparatus moves longitudinally from a first end of the spinning frame to a second end thereof.
  • Pick finding operations of picking up the tail ends of rovings from the full bobbins are carried out using a suction pipe in the bobbin replacing operation.
  • the chip collecting system includes a first chip collecting chamber disposed in the bobbin replacing apparatus.
  • the chip collecting chamber temporarily holds the unnecessary roving chips and fleece generated during the pick finding operations.
  • a communicating means is disposed in the chip collecting chamber for communicating between the chamber and the outside.
  • a chip removing means removes the roving chips in the chip collecting chamber through the communicating means.
  • the chip removing means is disposed on the route of the bobbin replacing apparatus and is selectively connectable with the communicating means.
  • a suction removal pipe connected at one end to a central chip/fleece collecting duct, a chip collecting chamber or a pneumatic clearer provided at one end of the spinning frame can be utilized.
  • the equipment already installed generally in the spinnery can be utilized to require minimal additional installation cost.
  • the chip removing system may consist of an independent chip collecting chamber disposed at one end of the spinning frame and a transferring means for transferring the roving chips in the chip collecting chamber of the bobbin replacing apparatus to the independent chip collecting chamber.
  • the bobbin replacing apparatus is carried on a transporter and transported between the spinning frame structures.
  • the bobbin replacing apparatus has a chip collecting chamber which temporarily accommodates the unnecessary roving chips generated during the pick finding operation, and the chamber has a communicating means which communicates the chip collecting chamber to the outside.
  • the transporter is also provided with a chip collecting chamber having connecting suction pipes which can be respectively connected to the pipes provided in the chip collecting chambers of the bobbin replacing apparatuses. And a second communicating pipe which communicates the chip collecting chamber of the transporter to the outside.
  • a suction removal pipe is connected to a central chip/fleece collecting duct at a position on the route of the bobbin replacing apparatus along the row of the spinning frames.
  • the suction removal pipe is connectable with the communicating pipe provided in the transporter. Since the chip collecting chamber of the transporter has a greater capacity than the chip collecting chamber of the bobbin replacing apparatus, the roving chips can be sucked away from the chip collecting chamber of the transporter less often.
  • the timing of exhausting the roving chips accumulated in the chip collecting chamber in the bobbin replacing apparatus into that of the transporter is adapted to be during the transportation of the bobbin replacing apparatus being carried on the transporter to another spinning frame structure needing the bobbin replacing operation. Accordingly the operation efficiency of the apparatus can be improved.
  • FIGs. 1 to 6 illustrate a first embodiment of this invention wherein Fig. 1 is a schematic side view, Fig. 2 a schematic plan view, Fig. 3 a back view showing the relationship between the spinning frame and the bobbin replacing apparatus, Fig. 4 a schematic side view showing how the exhaust pipe and the suction removal pipe are connected, Fig. 5 a partial side view of the suction removal pipe, and Fig. 6 a partial plan view of the suction removal pipe.
  • Figs. 7 to 10 illustrate a second embodiment of this invention wherein Fig. 7 is a schematic side view, Fig. 8 a schematic plan view, Fig. 9 a back view showing the relationship between the spinning frame and the bobbin replacing apparatus, and Fig. 10 a schematic side view showing how the exhaust pipe and the suction removal pipe are connected.
  • Fig. 11 shows a schematic side view of a third embodiment of this invention.
  • Fig. 12 shows a schematic plan view of a fourth embodiment of this invention.
  • Figs. 13 to 15 illustrate a fifth embodiment of this invention wherein Fig. 13 is a schematic plan view, Fig. 14 a schematic side view, and Fig. 15 a schematic back view.
  • Fig. 16 shows a schematic plan view of a sixth embodiment of this invention.
  • Fig. 17 shows a schematic plan view of a seventh embodiment of this invention.
  • Fig. 18 shows a schematic plan view of an eighth embodiment of this invention.
  • Fig. 19 shows a schematic side view of a ninth embodiment of this invention.
  • FIG. 3 A first embodiment of this invention will specifically be described below referring to Figs. 1 to 6.
  • Fig. 3 two pairs of bobbin rails 3 extend in parallel on a creel 2 of a spinning frame 1 in the longitudinal direction of the spinning frame structure.
  • Each pair of bobbin rails consists of an inner rail and an outer rail.
  • a creel rail 4 is provided between each pair of the rails 3 and is parallel therewith.
  • Each bobbin rail 3 has bobbin hangers 5 attached thereto at predetermined intervals corresponding to the doubled spindle pitch.
  • the rovings 101 drawn from the bobbins 100 suspended from the bobbin hangers 5 are designed to be guided through roving guides 6 to the trumpets 8 of drafting parts 7.
  • a pair of brackets 9 extend outward from the side edges of the creel 2, and stand-by bobbin rails 10 are provided along the brackets 9 to be parallel with the bobbin rails 3. From the rails 10, runners 11 each having a bobbin hanger 11a are suspended so that they can run along the rails 10.
  • a couple of roving bobbin replacing apparatuses 12 are loaded on each side of a transporter 13 which travels along one side of the row of spinning frames 1.
  • the transporter 13 transports the apparatuses 12 to a predetermined position where they oppose to a corresponding spinning frame 1 needing a bobbin replacing operation.
  • the apparatuses 12 are unloaded and travel along the rails 14 so that they may perform the bobbin replacing operation and ending operation.
  • the bobbin replacing apparatus 12 has a splicer (not shown) and a bobbin changer (not shown).
  • the apparatus 12 also has a pick finding unit which picks up the tail end of the roving from a full bobbin 102 in the bobbin replacing operation.
  • the pick finding unit consists of a chip collecting box 17 as a chip collecting chamber, a suction pipe 18 connected at the lower end to the box 17 and a suction nozzles 19 provided at the upper end of the suction pipe 18.
  • the chip collecting box 17 is disposed in the bottom of the apparatus 12 and has a suction fan 16 driven by a motor 15, as shown in Fig. 4.
  • a roving cutter (not shown) of a known constitution (e.g. as disclosed in Japanese Patent Publication No. 47-51649) is provided for trimming the roving 101 sucked into the suction nozzle 19.
  • the suction nozzle 19 is disposed so as to be shifted by a drive mechanism (not shown) between a pick finding position which corresponds to the level of the lower end of the full bobbin 102 carried to the position where pick finding is carried out and a descended position where the roving sucked from the full bobbin 102 is drawn to a predetermined position so that the splicer (not shown) can easily hold the roving.
  • the full bobbin 102 is designed to be released by a carriage 20 from the bobbin hanger 11a of the runner 11 and carried to the pick finding position (see Fig. 3).
  • An exhaust pipe 21 protrudes from the upper surface of the bobbin replacing apparatus 12 at a position closer to one end thereof. As shown in Fig. 1, an outlet 21a is formed near the upper end of the exhaust pipe 21 on the outer end side of the spinning frame 1. Further, a shutter (not shown) which is openable only toward the outlet 21a is provided at the lower end of the exhaust pipe 21 so that the outlet 21a is not affected by the suction force of the suction fan 16.
  • the spinning frame 1 has a pneumatic clearer (not shown), and a pneumatic box 22 is provided on the end side 103 of the spinning frame 1 as a source of suction force.
  • the pneumatic clearer sucks fleece fed from the drafting parts 7 whenever end down occurs during the spinning operation so as to prevent the fleece from affecting other spindles.
  • the pneumatic clearer also functions to remove the flock deposited on the front bottom rollers during the normal operation.
  • a central chip/fleece collecting duct 23 is arranged at the ceiling on the end side 103 of the spinning frame 1.
  • the collecting duct 23 is connected to the pneumatic box 22 through a duct 24.
  • the duct 24 has a valve 25 in the middle thereof so that the suction force from the central collecting duct 23 exerted to the pneumatic box 22 can be controlled.
  • a suction removal pipe 26 is connected as a chip removing system to the duct 24 at a position closer to the central duct 23 than the valve 25.
  • the suction removal pipe 26 exerts suction force to the chip collecting box 17 through the suction pipe 21 to suck away the roving chips in the box 17.
  • the suction removal pipe 26 is diverged into two parts and the tips thereof extend horizontally toward the spinning frame structure at the level of the outlets 21a.
  • the inlet 26a of the suction removal pipe 26 has arcuately cut sides, as shown in Fig. 5, and covered with a door 27 which can be opened or closed automatically.
  • the door 27 is pivotally supported at one end by a shaft 28 as shown in Figs. 5 and 6 and has a cover 27a which can be brought into slide contact with the end face of the inlet 26a.
  • the other end or front face of the cover 27a has an engaging face 27b having a slope of approximately 45°.
  • bobbin replacing apparatuses 12 are loaded on each side of the transporter 13 and transported to a predetermined position where they oppose to a corresponding spinning frame 1 needing bobbin replacing operation. At this position, the apparatuses 12 are unloaded from the transporter 13 and move toward the spinning frame 1 along the rails 14 extended on each side of the spinning frame 1 to carry out the bobbin replacing operation and ending operation in sequence.
  • the suction nozzle 19 of the pick finding device is shifted to the pick finding position which corresponds to the level of the lower end of the full bobbin 102 to suck and find the tail end of the roving 101 from the full bobbin 102.
  • the roving 101 sucked in the suction nozzle 19 is too long, it is trimmed with a roving cutter.
  • the chips of the rovings 101 are accommodated in the chip collecting box 17 through the suction pipe 18 under the action of the suction fan 16.
  • the suction fan 16 is stopped, and the bobbin replacing apparatuses 12 are moved to a predetermined position where they oppose to the suction removal pipe 26 disposed on the end side 103 of the spinning frame 1.
  • the inlet 26a of the suction removal pipe 26 is inserted into the outlet 21a to connect the exhaust pipe 21 with the suction removal pipe 26.
  • the suction force of the central collecting duct 23 is thus exerted to the inside of the chip collecting box 17 through the suction removal pipe 26 and the exhaust pipe 21, whereupon the roving chips 101 accumulated in the chip collecting box 17 are sucked away through the exhaust pipe 21 and the suction removal pipe 26 into the central collecting duct 23.
  • the thus recovered roving chips 101 are transferred through the duct 23 to a raw stock feeding chamber for recycling.
  • valve 25 is closed upon receipt of a detection signal from a detector (not shown) when the bobbin replacing apparatuses 12 reach the predetermined position.
  • a detection signal from a detector (not shown) when the bobbin replacing apparatuses 12 reach the predetermined position.
  • the valve 25 is closed, the suction force exerted from the central collecting duct 23 to the suction removal pipe 26 is increased to ensure complete sucking of the chip accumulated in the chip collecting box 17.
  • the bobbin replacing apparatuses 12 After a predetermined time (several seconds), the bobbin replacing apparatuses 12 start to move toward the gear end side (opposite to the end side 103) and are loaded again on the transporter 13 waiting on the gear end side to be transported to a predetermined position where they oppose to another spinning frame 1 needing the bobbin replacing operation, where the above operation is repeated.
  • the roving chips accommodated in the chip collecting box 17 of the bobbin replacing apparatus can be recovered fully automatically. Therefore, operators need not remove the roving chips manually, leading to labor saving and reduction in the total cost.
  • the bobbin replacing apparatus 12 Every time the bobbin replacing apparatus 12 completes the bobbin replacing operation for one spinning frame 1, the chips accumulated in the chip collecting box 17 are sucked away automatically. Accordingly, the amount of the roving chips that are temporarily accommodated in the chip collecting box 17 can be held below a predetermined level with no substantial reduction in the suction force (both in gas volume and static pressure) of the suction fan 16, whereby the suction force can be exerted with stability to reduce miss in the pick finding operation. Moreover, since the size of the chip collecting chamber in the bobbin replacing apparatus 12 and that of the suction fan 16 can further be reduced, power consumption can be moderated to further reduce the total cost.
  • the chip removing system is located on the gear end side 104 of the spinning frame 1.
  • the exhaust pipe 21 has an open upper end.
  • a central collecting duct 23 is disposed above the spinning frame 1 on the gear end side 104.
  • the duct 23 has a suction removal pipe 29 connected at a position where it opposes the exhaust pipe 21 of the bobbin replacing apparatus 12 loaded on the transporter 13.
  • the suction removal pipe 29 has a bellows 29a in the middle and a valve 30 at a position closer to the upper end.
  • An air cylinder 31 extending vertically from a bracket 32 is disposed beside the suction removal pipe 29.
  • a holder 34 to which the lower end of the suction removal pipe 29 is inserted is secured on the lower end of the piston rod 33 of the cylinder 31.
  • the suction removal pipe 29 is designed to be shiftable between a position where it is connectable with the exhaust pipe 21 and a position where it is spaced from the exhaust pipe 21 with the movement of this piston rod 33.
  • the valve 30 is normally closed and the piston rod 33 is retracted.
  • the air cylinder 31 is actuated to extend the piston rod 33.
  • the valve 30 may be opened to remove the roving chips accumulated in the chip collecting box 17. Specifically, when the valve is opened the suction force channeled through central collecting duct 23 is applied to the suction removal pipe 29 which sucks the roving chips from chip collecting box 17.
  • the exhaust pipe 21 of the bobbin replacing apparatus 12 has an extensible constitution, while the suction removal pipe 29 is fixed at a predetermined position. Namely, the lower end of the suction removal pipe 29 is secured at the predetermined position by a bracket 32.
  • an air cylinder 35 is fixed at an upper part of the bobbin replacing apparatus 12, on the piston rod 36 of which an exhaust pipe 21 is fixed through a holder 37.
  • the exhaust pipe 21 has a bellows 21b so that it can be extended or retracted.
  • the air cylinder 35 is actuated to connect the suction removal pipe 29 with the exhaust pipe 21.
  • the valve 30 is then opened to remove the roving chips accumulated in the chip collecting box 17.
  • the suction removal pipe 29 in the second embodiment has an extensible constitution, so that the air cylinder 31 for extending or retracting the pipe 29 must be disposed on the gear end side 104 of the spinning frame 1.
  • the single air cylinder 35 provided on the bobbin replacing apparatus 12 enables connection between the suction removal pipe 29 and the exhaust pipe 21 only by allowing the bobbin replacing apparatuses 12 to oppose the spinning frame 1. Accordingly, the number of air cylinders can be reduced, and the control circuit for actuating the air cylinder is simplified. Therefore, a simplified structure and reduced production costs can be realized.
  • the suction removal pipe 26 or 29 is disposed as a chip remover for removing the roving chips accumulated in the chip collecting box 17 in the end portion of each spinning frame 1 in the preceding Examples.
  • the number of the chip removing systems used is smaller than the number of the spinning frames 1.
  • a suction removal station 38 is provided for every three spinning frames 1, and the station 38 has a suction removal pipe (not shown) of the constitution described in the second and third embodiments.
  • the bobbin replacing apparatuses 12 each have an exhaust pipe 21 having a constitution engagable with the suction removal pipe of the suction removal station 38.
  • the amount of the roving chips 101 to be temporarily accommodated in the chip collecting chamber 17 after a single bobbin replacing operation for one spinning frame 1 depends on the number of yarns to be spun. When a large number of yarns are to be spun, the chip collecting box 17 will be full after only one or two runs of bobbin replacing operation. In contrast when fewer yarns are to be spun, it will fill only after several runs. Accordingly, when a small number of yarns are to be spun, it is not necessary to remove the roving chips from the chip collecting chamber 17 after completion of one or two runs of the bobbin replacing operation. Rather, removal of chips may be carried out whenever the bobbin replacing apparatuses 12 reach the position where they oppose to the suction removal station 38.
  • the roving chips in the chip collecting box 17 must be removed after completion of the bobbin replacing operation once or twice. If the bobbin replacing operation is continued without removing the roving chips accumulated in the chip collecting chamber 17, sucking performance will be lowered which increases the probability of a pick finding miss.
  • the bobbin replacing apparatuses 12 are transported to a position where they oppose the corresponding suction removal station 38 after completion of one or two runs of the bobbin replacing operation to perform chip removing operations.
  • the apparatuses 12 are then transported to another spinning frame 1 needing the bobbin replacing operation, where they repeat the necessary operation.
  • the time required for transporting the bobbin replacing apparatuses 12 loaded on the transporter 13 to the suction removal station 38 or to a predetermined position to oppose to a corresponding spinning frame 1 is very short.
  • the time required for the chip removal is also very short, so that the smooth operation of the spinning frames 1 may not be disturbed thereby.
  • the bobbin replacing apparatus 12 it is also possible to allow the bobbin replacing apparatus 12 to have a counter for counting the run number of bobbin replacing operation, so that the transporter 13 may transport the bobbin replacing apparatus to a predetermined position where it opposes to a corresponding suction removal station 38 upon receipt of a signal from the counter and to carry out chip removing operation there.
  • the counter gives a signal whenever the run number of the bobbin replacing operation reach a predetermined value indicating the necessity of chip removal. In this case, the number of the suction removal stations 38 can further be reduced. Since the value depends on the spinning condition, a variable counter should be used so that the set value can be varied.
  • the suction removal stations 38 may be disposed at positions that do not oppose to any spinning frame 1.
  • a suction fan 40 driven by a motor 39 is disposed on the top of the chip collecting chamber 41 disposed in the transporter 13 at a position closer to the spinning frame 1.
  • the chip collecting chamber 41 has a size greater than that of the chip collecting box 17.
  • Connecting suction pipes 43 are connected to the chamber 41 so as to extend horizontally from each side thereof as a means for connecting the chamber 41 with the box 17 for sucking away the roving chips therefrom.
  • Each connecting suction pipe 43 is adapted to be connected with an extensible exhaust pipe 42 connected to the chip collecting box 17.
  • An exhaust pipe 44 extends upward from the upper part of the chip collecting chamber 41 as a means for communication.
  • An air cylinder 45 is fixed in the lower part of each bobbin replacing apparatus 12 beside the corresponding connecting suction pipe 43.
  • the free end portion of the exhaust pipe 42 is secured on the piston rod 46 of the air cylinder 45 through a holder 47.
  • a central collecting duct 23 is disposed above the spinning frame 1 on the gear end side 104, and a suction removal pipe 29 having a construction similar to that of the second embodiment is connected thereto at a predetermined position where it opposes to the exhaust pipe 44.
  • the suction removal pipe 29 With the movement of the piston rod 33, the suction removal pipe 29 is adapted to be shifted between a position where it is connectable with the exhaust pipe 44 and a position where it is spaced from the exhaust pipe 44.
  • a separate suction removal pipe 29 is not provided for each of the spinning frames 1. Rather a single pipe 29 is shared by a plurality of spinning frames 1.
  • the bobbin replacing apparatuses 12 return to the position in alignment with the transporter 13 after completion of the bobbin replacing operation for one spinning frame 1.
  • the air cylinder 45 is then actuated to protrude the piston rod 46, whereby the exhaust pipe 42 is connected to the connecting suction pipe 43.
  • a suction fan 40 in the transporter 13 is then driven and the roving chips accumulated in the chip collecting box 17 are sucked away into the chip collecting chamber 41 under the suction force exerted by the fan 40.
  • the piston rod 46 is retracted to remove the connection between the exhaust pipe 42 and the connecting suction pipe 43.
  • the above operation may be carried out before the bobbin replacing apparatuses 12 start the next bobbin replacing operation, and it is actually carried out while the bobbin replacing apparatuses 12 are transported by the transporter 13 to another spinning frame 1 needing the bobbin replacing operation, allowing the apparatuses 12 to start the operation immediately after arrival at the position where they oppose to the corresponding spinning frame 1 needing the bobbin replacing operation.
  • the roving chips recovered by the chip collecting chamber 41 are occasionally exhausted during the operation of the apparatuses 12.
  • the air cylinder 31 is actuated to protrude the piston rod 33, thereby connecting the suction removal pipe 29 with the exhaust pipe 44.
  • the valve 30 By opening the valve 30 the roving chips in the chip collecting chamber 41 are sucked away by the suction force from the central collecting duct 23 through the exhaust pipe 44 and the suction removal pipe 29.
  • the operation of removing the roving chips from the chip collecting chamber 41 may be carried out less frequently than in any of the preceding Examples. However, the time required for one chip removing operation will be somewhat longer. Nevertheless, it may not affect the operation of the bobbin replacing apparatuses 12 since recovery of the chips from the chip collecting chamber 41 can be carried out while the apparatuses 12 are under operation.
  • Suction removal pipes 29 may be disposed at one or two positions to carry out chip removal if the transporter 13 is adapted to travel to such positions during its stand-by period while the apparatuses 12 are performing bobbin replacing operation. By making the exhaust pipe 44 is carried by the transporter 13 as in this embodiment, the number of the pipes 29 can be reduced to 1/2 compared with the case where the exhaust pipe 21 is disposed on the bobbin replacing apparatus 12.
  • FIG. 16 A sixth embodiment of this invention will now be described referring to Fig. 16.
  • the construction of the bobbin replacing apparatus 12 is not modified but the roving chips accumulated in the chip collecting chamber 41 provided in the transporter 13 are adapted to be recovered by an operator.
  • the chip collecting chamber 41 is disposed in the transporter 13 on the side opposite to the gear end side 104, and a connecting suction pipe 43 is extended to be connectable to the chamber 41.
  • the chamber 41 also has a door 48 which can be opened manually.
  • the roving chips collected in the chip collecting box 17 of the bobbin replacing apparatus 12 are sucked away into the chip collecting chamber 41 in the same manner as in Example 5, and an operator occasionally recovers the roving chips accumulated in the chamber 41 manually. Since the chip collecting chamber 41 of the transporter 13 can be allowed to have a larger capacity over the chip collecting box 17 of the bobbin replacing apparatus 12, the roving chips accumulated in the chamber 41 may be recovered far less frequently than has conventionally been needed. Further, the recovery of roving chips can also be carried out during the operation of the bobbin replacing apparatus 12.
  • the exhaust pipe 21 of the bobbin replacing apparatus 12 is connected to the pneumatic box 22 of the spinning frame 1 so as to recover the roving chips from the chip collecting box 17.
  • the bobbin replacing apparatus 12 has an exhaust pipe 21 having an outlet at a position to oppose to the pneumatic box 22 of the spinning frame 1 so as to be retractable relative to the spinning frame 1.
  • the side walls of the pneumatic box 22 have closable connecting holes 50 to which the outlets of the corresponding exhaust pipes 21 can be inserted.
  • the pneumatic box 22 serves as the chip removing system.
  • the exhaust pipe 21 is connected to the connecting hole 50 of the pneumatic box 22 when the bobbin replacing apparatus 12 stops at the end side 103 of the spinning frame 1, whereby the roving chips in the chip collecting box 17 are sucked away into the pneumatic box 22. The roving chips accumulated in the pneumatic box 22 are then sucked away through the duct 24.
  • a chip collecting box 51 is disposed in the spinning frame 1 as a chip collecting chamber on the out end side, and the exhaust pipe 21 of the bobbin replacing apparatus 12 is designed to be connected to the box 51 to recover the roving chips accumulated in the chip collecting box 17.
  • the exhaust pipe 21 is connected to the chip collecting box 51 when the bobbin replacing apparatus 12 stops at the out end side of the spinning frame 1, whereupon the suction fan 16 in the chip collecting box 17 is driven reverse to urge the roving chips in the chip collecting box 17 into the chip collecting box 51.
  • the chip collecting box 51 constitutes a part of the chip removing system in this embodiment.
  • the transferring means constituting a part of the chip removing system comprises a reversely driven suction fan and the exhaust pipe 21 also serving as a communicating means.
  • the roving chips accumulated in the chip collecting box 51 may be recovered occasionally by an operator or by the central collecting system.
  • a suction device may be disposed in the chip collecting box 51 to suck away and recover the roving chips in the chip collecting box 17.
  • a ninth embodiment of this invention will be described referring to Fig. 19.
  • a constitution similar to the second embodiment is employed in this embodiment except that a first air blow pipe 53 and a second air blow pipe 54 are disposed on the chip collecting box 17 of the bobbin replacing apparatus 12.
  • the first air blow pipe 53 is for sweeping away the chips and fleece deposited on a screening net 52.
  • the second air blow pipe 54 assists the central collecting duct 23 to recover the chips and fleece accumulated in the chip collecting box 17.
  • the sucking static pressure of the suction pipe 18 will be lowered.
  • the roving chips sucked through the suction nozzle 19 will not be opened and remain in the form of chips and carried to the central collecting duct 23 through the chip collecting box 17. Accordingly, it happens that the roving chips are caught at the joint of the central collecting duct 23 or involved by a fan (not shown) disposed in the central collecting duct 23.
  • this invention is not limited to the above Examples, and it is also possible, for example in the fifth embodiment, to use an extensible connecting suction pipe 43 or exhaust pipe 44, or to use a driving means other than the air cylinder as a means for moving the suction removal pipe 29 and the like, or to dispose the central collecting duct 23 at a place other than the ceiling.
  • the chip collecting box 17 may have a closable outlet as a communicating means instead of the exhaust pipe 21, while the suction removal pipes 26 or 29 constituting the chip removing system may be elongated.
  • the sensor outputs a command signal that the roving chips should be removed when the amount thereof is more than a predetermined set value and a command signal indicating completion of chip removal when the chip collecting box 17 is empty, respectively.
  • a chip collecting system for a bobbin replacing apparatus Disclosed is a chip collecting system for a bobbin replacing apparatus.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP91101231A 1990-01-31 1991-01-30 Vorgarnschnipselsammelsystem für ein Vorgarnspulenauswechselgerät Expired - Lifetime EP0440213B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2304790 1990-01-31
JP23047/90 1990-01-31

Publications (3)

Publication Number Publication Date
EP0440213A2 true EP0440213A2 (de) 1991-08-07
EP0440213A3 EP0440213A3 (de) 1991-08-21
EP0440213B1 EP0440213B1 (de) 1997-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101231A Expired - Lifetime EP0440213B1 (de) 1990-01-31 1991-01-30 Vorgarnschnipselsammelsystem für ein Vorgarnspulenauswechselgerät

Country Status (4)

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EP (1) EP0440213B1 (de)
JP (1) JP3082251B2 (de)
KR (1) KR930002007B1 (de)
DE (1) DE69127003T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3459302B2 (ja) * 1994-12-13 2003-10-20 株式会社コスメック リリーフ弁の作動状態検出装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147190A (en) * 1936-09-16 1939-02-14 Goodrich Co B F Lint collector for textile machines
FR1188285A (fr) * 1956-12-13 1959-09-21 Bobinoir
FR1382564A (fr) * 1963-03-21 1964-12-18 Sulzer Ag Machine textile
US4333772A (en) * 1980-06-18 1982-06-08 Parks-Cramer Company Traveling pneumatic cleaner and automatic unloading arrangement and method
FR2502192A1 (fr) * 1981-03-21 1982-09-24 Pons Ubach Antonia Appareil pour reunir les extremites des fils casses produits sur un metier continu a filer, a anneaux
EP0213962A2 (de) * 1985-09-04 1987-03-11 Howa Machinery Limited Verfahren und Vorrichtung zum Verbinden von Vorgarn in Spinnmaschinen
EP0258188A2 (de) * 1986-08-25 1988-03-02 Howa Machinery Limited Verfahren zum Verbinden von Vorgarnsträngen und zum Auswechseln von Vorgarnspulen in einer Ringspinnmaschine und Vorrichtung zur Durchführung dieses Verfahrens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147190A (en) * 1936-09-16 1939-02-14 Goodrich Co B F Lint collector for textile machines
FR1188285A (fr) * 1956-12-13 1959-09-21 Bobinoir
FR1382564A (fr) * 1963-03-21 1964-12-18 Sulzer Ag Machine textile
US4333772A (en) * 1980-06-18 1982-06-08 Parks-Cramer Company Traveling pneumatic cleaner and automatic unloading arrangement and method
FR2502192A1 (fr) * 1981-03-21 1982-09-24 Pons Ubach Antonia Appareil pour reunir les extremites des fils casses produits sur un metier continu a filer, a anneaux
EP0213962A2 (de) * 1985-09-04 1987-03-11 Howa Machinery Limited Verfahren und Vorrichtung zum Verbinden von Vorgarn in Spinnmaschinen
EP0258188A2 (de) * 1986-08-25 1988-03-02 Howa Machinery Limited Verfahren zum Verbinden von Vorgarnsträngen und zum Auswechseln von Vorgarnspulen in einer Ringspinnmaschine und Vorrichtung zur Durchführung dieses Verfahrens

Also Published As

Publication number Publication date
DE69127003D1 (de) 1997-09-04
JPH04214430A (ja) 1992-08-05
DE69127003T2 (de) 1998-01-29
JP3082251B2 (ja) 2000-08-28
EP0440213B1 (de) 1997-07-30
KR910014546A (ko) 1991-08-31
KR930002007B1 (ko) 1993-03-20
EP0440213A3 (de) 1991-08-21

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