EP1972589A2 - DIspositif d'alimentation de bobines de fil - Google Patents

DIspositif d'alimentation de bobines de fil Download PDF

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Publication number
EP1972589A2
EP1972589A2 EP08004413A EP08004413A EP1972589A2 EP 1972589 A2 EP1972589 A2 EP 1972589A2 EP 08004413 A EP08004413 A EP 08004413A EP 08004413 A EP08004413 A EP 08004413A EP 1972589 A2 EP1972589 A2 EP 1972589A2
Authority
EP
European Patent Office
Prior art keywords
yarn
yarn end
end cutting
cutting section
cutters
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
EP08004413A
Other languages
German (de)
English (en)
Other versions
EP1972589B1 (fr
EP1972589A3 (fr
Inventor
Takashi Nakagawa
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
Original Assignee
Murata Machinery 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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP1972589A2 publication Critical patent/EP1972589A2/fr
Publication of EP1972589A3 publication Critical patent/EP1972589A3/fr
Application granted granted Critical
Publication of EP1972589B1 publication Critical patent/EP1972589B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/06Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • B65H67/061Orientating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a yarn package supply apparatus that aligns and supplies a plurality of yarn packages.
  • the Unexamined Japanese Utility Model Application Publication (Jikkai-Hei) No. 6-65370 discloses a yarn package supply apparatus that cuts yarn ends extending from yarn packages dropped from a parts feeder conveyor into a parts feeder.
  • this yarn package supply apparatus a large number of V-shaped guide grooves 10 are formed in a line at a yarn package chute leading to the parts feeder of the parts feeder conveyor.
  • a scissors-like upward-facing cutter 14 is arranged at a bottom portion of each of the guide grooves 10. In this configuration, where the yarn ends of yarn packages 1 dropped from the parts feeder conveyor 2 into the parts feeder 4 extend onto the parts feeder conveyor 2, the yarn ends of yarn packages 1 are guided into the guide grooves 10, and the yarn ends are cut by the cutter 14.
  • the Unexamined Japanese Patent Application Publication (Tokkai-Sho) No. 57-121514 discloses a yarn package individuating unit 11 having a yarn cutter 53 arranged therein and which, if a yarn end portion is wound out from a yarn package into a delivery section 52 that delivers the yarn end portion from a second loader 17 to a first individuater 18, cuts the dragging yarn end portion.
  • the yarn cutter 53 has a plurality of moving scissors 54.
  • Each of moving scissors 54 has two scissor blades 56, 57 coupled together by a turning joint 55.
  • One of the scissor blades, the blade 56 is fixed to a movable endless chain 59 by a connectible and blockable motorized driving device 58.
  • the other scissor blade 57 is kept open by a spring 60.
  • the scissor blade 57 has an actuating arm 61 that, while the endless chain 59 is circulating, abuts against a plurality of stoppers 62 arranged on a bottom plate 40 near a circulating path of the chain 59. Every time the actuating arm 61 abuts against the stoppers 62, the moving scissors 54 are closed.
  • the moving scissors 54 may be housed below the second loader 17. In this case, the yarn end cannot be cut.
  • a main object of the present invention is to provide a yarn package supply apparatus comprising a compactly configured yarn end cutting device that enables the yarn end to be reliably processed using only a small number of cutters.
  • a first aspect of the present invention provides a yarn package supply apparatus configured as follows. That is, the yarn package supply apparatus includes a yarn package conveying device that conveys a plurality of yarn packages in a predetermined direction, a yarn package aligning device that aligns and supplies the plurality of yarn packages dropped from the yarn package conveying device, and a yarn end cutting device arranged between the yarn package conveying device and the yarn package aligning device to cut a yarn end wound out from each of the yarn packages so as to straddle between the yarn package conveying device and the yarn package aligning device.
  • the yarn cutting device includes a yarn end cutting section having a cutter that cuts the yarn end, a yarn end cutting section guiding means for guiding the yarn end cutting section along a single track extending along a width direction (the direction perpendicular to the predetermined direction) of the yarn package conveying device, and a yarn end cutting section driving means for driving the yarn end cutting section guided by the yarn end cutting section guiding means so that the yarn end cutting section reciprocates along the single track.
  • the cutter itself reciprocates, allowing the yarn end to be processed using only a small number of cutters.
  • the yarn end cutting section reciprocates along the single track and thus can be compactly configured.
  • the yarn package supply apparatus is preferably configured as follows. That is, the track is linear. This configuration enables a reduction in the time required to reciprocate the yarn end cutting section. Furthermore, the structure of the yarn end cutting section guiding means can be simplified.
  • the yarn package supply apparatus is preferably configured as follows. That is, the yarn end cutting section has a pair of the cutters, and the paired scissors are arranged at opposite ends of the single track so as to lie opposite each other. This configuration enables the yarn end to be cut regardless of in which direction the yarn end cutting section travels on the track.
  • the yarn package supply apparatus is preferably configured as follows. That is, the yarn end cutting device includes a line sensor arranged along the single track to sense presence of the yarn end.
  • the yarn end cutting section driving means is controlled on the basis of a sensing result from the line sensor. This configuration allows the yarn end cutting section to travel on the basis of the presence of the yarn end.
  • the yarn package supply apparatus is preferably configured as follows. That is, the cutters are configured like scissors.
  • the yarn end cutting device further includes a cutter driving means for drivingly opening and closing the scissors-like cutters, and the line sensor arranged along the single track to sense the presence of the yarn end.
  • the cutter driving means is controlled on the basis of the sensing result from the line sensor. This configuration allows the cutter to be opened and closed on the basis of the presence of the yarn end.
  • the yarn package supply apparatus is preferably configured as follows. That is, the cutters are configured like scissors.
  • the yarn end cutting section further includes a yarn end sensing means for sensing the presence of the yarn end in the cutters.
  • the yarn end cutting device further includes a cutter driving means for drivingly opening and closing the scissors-like cutters.
  • the cutter driving means is controlled on the basis of a sensing result from the yarn end sensing means. This configuration allows the cutters to be opened and closed on the basis of the presence of the yarn end.
  • the yarn package supply apparatus is preferably configured as follows. That is, the yarn end cutting device comprises a yarn end cutting section arrival sensing means for sensing that the yarn end cutting section has reached a start point and an end point of the single track.
  • the yarn end cutting section driving means is controlled so as to reverse a traveling direction of the yarn end cutting section every time the yarn end cutting section arrival sensing means senses that the yarn end cutting section has reached the start point or end point of the single track. This configuration allows the yarn end cutting section to reliably reach the start point and end point of the single track.
  • a second aspect of the present invention provides a yarn package supply apparatus configured as follows. That is, the yarn package supply apparatus includes a yarn package conveying device that conveys a plurality of yarn packages in a predetermined direction, a yarn package aligning device that aligns and supplies the plurality of yarn packages dropped from the yarn package conveying device, and a yarn end cutting device arranged between the yarn package conveying device and the yarn package aligning device to cut a yarn end wound out so as to straddle between the yarn package conveying device and the yarn package aligning device.
  • the yarn cutting device includes a yarn end cutting section having a cutter that cuts the yarn end, a yarn end cutting section guiding means for guiding the yarn end cutting section so that the cutter is always positioned in an area in which the yarn end is possibly present, and a yarn end cutting section driving means for driving the yarn end cutting section guided by the yarn end cutting section guiding means so that the yarn end cutting section travels within the area. This configuration allows the yarn end cutting device to always cut the yarn end.
  • Figure 1 is a schematic diagram of an entire yarn package supply apparatus.
  • a yarn package supply apparatus 1 is composed of a parts feeder conveyor 2 (yarn package conveying device) that conveys a plurality of yarn packages P produced by a spinning machine, in a predetermined direction, a parts feeder 3 (yarn package aligning device) that aligns the plurality of yarn packages P dropped from the parts feeder conveyor 2, and supplies the yarn packages P to a yarn package inserting and standing device (not shown in the drawings), and a yarn end cutting device 4 arranged between the parts feeder conveyor 2 and the parts feeder 3 to cut yarn ends Q extending from the yarn packages P dropped into the parts feeder 3 so as to straddle between the parts feeder conveyor 2 and the parts feeder 3.
  • the yarn package supply apparatus 1 comprises a batch type doff box 5 that simultaneously supplies the plurality of yarn packages P to the parts feeder conveyor 2.
  • the parts feeder conveyor 2 stabilizes the supply of the yarn packages P to the parts feeder 3.
  • the parts feeder conveyor 2 is configured to convey the yarn packages P downstream side (the parts feeder 3 side) by being vibrated by a schematically shown vibrating motor 2a.
  • the parts feeder 3 is also vibrated by a schematically shown vibrating motor 3a and is configured to carry out the yarn packages P dropped to a central bottom portion of the parts feeder 3, in alignment along a spiral passage having a height increasing gradually toward an outer periphery side of the parts feeder 3.
  • the configuration of the yarn end cutting device 4 will be described below.
  • the batch type doff box 5 is configured to be pivotable by a hydraulic cylinder 5a that pivots around a rotating shaft 5b, to feed the plurality of yarn packages P accommodated in the batch type doff box 5, onto the parts feeder conveyor 2 in piles when required.
  • the yarn package supply apparatus 1 further comprises a vibrating conveyor inlet sensor 6 as a sensor that senses whether or not any yarn package P is present on an upstream side of the parts feeder conveyor 2 or senses the number of the yarn packages P present, a vibrating conveyor outlet sensor 7 as a sensor that senses whether or not any yarn package P is present on a downstream side of the parts feeder conveyor 2 or senses the number of the yarn packages P present, and a parts feeder level sensor 8 that senses whether or not any yarn package is present in the parts feeder 3 or senses the number of the yarn packages P present.
  • a vibrating conveyor inlet sensor 6 as a sensor that senses whether or not any yarn package P is present on an upstream side of the parts feeder conveyor 2 or senses the number of the yarn packages P present
  • a vibrating conveyor outlet sensor 7 as a sensor that senses whether or not any yarn package P is present on a downstream side of the parts feeder conveyor 2 or senses the number of the yarn packages P present
  • a parts feeder level sensor 8 that senses whether or not any yarn package
  • the vibrating motors 2a and 3a, the hydraulic cylinder 5a, the vibrating conveyor inlet sensor 6, the vibrating conveyor outlet sensor 7, and parts feeder level sensor 8 are connected to a schematically shown control device 9 composed of a CPU and a RAM, a R0M, and the like (not shown in the drawings) and operate as described below.
  • the control device 9 drives the driving motor 2a to start conveying the yarn packages P on the parts feeder conveyor 2 to supply an appropriate amount of yarn packages P to the parts feeder 3.
  • the control device 9 drives the driving motor 2a to start conveying the yarn packages P on the parts feeder conveyor 2 to convey the yarn packages P on the upstream side of the parts feeder conveyor 2, to the downstream side.
  • the control device 9 drives the hydraulic cylinder 5a to allow the batch type doff box 5 to pivot to supply the yarn packages P in the batch type doff box 5 to the upstream side of the parts feeder conveyor 2.
  • the yarn packages P are stably supplied to the parts feeder 3 by the cooperation among the parts feeder conveyor 2, the batch type doff box 5, the vibrating conveyor inlet sensor 6, the vibrating conveyor output sensor 7, and the parts feeder level sensor 8.
  • Figure 2 is a figure showing an embodiment of the present invention as viewed in the direction of arrow A in Figure 1 .
  • the yarn end cutting device 4 comprises a yarn end cutting device cover 10 arranged between the parts feeder conveyor 2 and the parts feeder 3 to cover the parts feeder conveyor 2 and the parts feeder 3 from above.
  • the yarn end cutting device cover 10 is bent so as to incline downward as the yarn end cutting device cover 10 leaves a terminal of the parts feeder conveyor 2 so as to smoothly drop the yarn packages P conveyed on the parts feeder conveyor 2 into the parts feeder 3 (see also Figure 7 that is a sectional view taken along line 7-7 in Figure 2 ).
  • the yarn end cutting device cover 10 has a plurality of open slits 11 formed therein so as to extend in the same direction as a conveying direction of the yarn packages P.
  • a width-direction end of the slits 11 provided in a line is aligned with a width-direction end of the parts feeder conveyor 2 (see a positional relationship indicated by reference character F in Figure 2 ).
  • a round portion of a predetermined diameter is additionally formed at an inner end of each of the slits 11.
  • the yarn end cutting device 4 comprises a line sensor 12 located opposite a side on which the yarn packages P pass through, across the yarn end cutting device cover 10 to sense the presence of the yarn ends Q extending so as to straddle between the parts feeder conveyor 2 and the parts feeder 3 (a sensing direction of the line sensor 12 is shown by reference character E in Figure 7 , that is, the sensing direction is parallel to a forming direction of the slits 11).
  • the line sensor 12 is arranged along a track R described below and connected to a control section (control section 30; see Figure 3 ) described below.
  • the line sensor 2 outputs information on the presence or absence of the yarn end Q having entered the slits 11, the number of the yarn ends Q having entered each of the slits 11, and the positions of the yarn ends Q (hereinafter simply referred as the " distribution information on the yarn ends Q") to the control section.
  • Figure 3 shows the yarn end cutting device (however, the yarn end cutting device cover 10 and the line sensor 12 are shown by alternate long and two short dashes lines).
  • the yarn end cutting device 4 comprises a yarn end cutting section 21 having a cutter 20 that cuts the yarn ends Q, a linear guide (yarn end section guiding means) 22 that guides the yarn end cutting section 21 along a single track R along the width direction of the parts feeder conveyor 2, and a rodless cylinder (yarn end cutting section driving means) 23 that drives the yarn end cutting section 21 guided by the linear guide 22 so that the yarn end cutting section 21 reciprocates along the track R (as shown by a thick arrow in the figure).
  • the yarn end cutting section 21 has a pair of cutters 20 arranged at the opposite ends of the track R so as to lie opposite each other.
  • the cutters 20, 20 are shaped like scissors, and each have a fixed blade 20a fixed to the yarn end cutting section 21 and a movable blade 20b pivotably supported by the yarn end cutting section 21.
  • the yarn end cutting section 21 of the yarn end cutting device 4 comprises an air cylinder (cutter driving means) 24 that drivingly opens and closes the scissors-like cutters 20, 20.
  • the yarn end cutting section 21 comprises a pair of photoelectric sensors (yarn end detecting means) 25 that senses the presence of the yarn ends Q in the cutters 20, 20 (that is, the presence of the yarn ends Q between the fixed blade 20a and the movable blade 20b).
  • the photoelectric sensors 25 are arranged in association with the respective cutters 20, 20.
  • the yarn end cutting device 4 further comprises proximity sensors (yarn end cutting section arrival sensing means) 26, 26 that sense that the yarn end cutting section 21 has reached a start point and an end point of the track R.
  • the rodless cylinder 23 and the air cylinder 24, the photoelectric sensors 25, 25, and the proximity sensors 26, 26 are connected to the schematically shown control section 30, composed of a CPU and a RAM, a ROM, and the like.
  • the control section 30 is configured to be able to control the rodless cylinder 23 and the air cylinder 24 using a pump and a solenoid valve (not shown in the drawings) provided in the control device.
  • the control section 30 is also configured to be able to appropriately process output signals from the photoelectric sensors 25, 25, the proximity sensors 26, 26, the line sensor 12, and the like using an A/D converter (not shown in the drawings) arranged in the control section 30.
  • the yarn end cutting section 21 comprises a main body 27, the above-described pair of cutters 20, 20, attached to a top surface of the main body 27, and the above-described air cylinder 24, drivingly opening and closing the cutters 20, 20.
  • the main body 27 is a thin plate forming yarn end guide edges 28, 28 that are each open toward a traveling direction to enable the yarn ends Q to be captured.
  • the main body 27 has a slit G in an area in which the yarn end guide edges 28, 28 cross each other.
  • the fixed blade 20a and the movable blade 20b are arranged to sandwich the slit G between the fixed blade 20a and the movable blade 20b when the cutters 20 are open. Closing the fixed blade 20a and the movable blade 20b allow the cutting of the yarn ends Q captured by the yarn end guide edges 28, 28 and introduced into the slit G.
  • the movable blade 20b is provided so as to be pivotable by a shaft 20c with respect to the main body 27 and is attached to a shaft 20f so as to be restricted in a circumferential direction and has clearance in a radial direction, with respect to a T-shaped coupling member 20d.
  • the coupling member 20d is provided so as to be pivotable by a shaft 20e with respect to the main body 27 and is attached to the shaft 20f so as to be restricted in the circumferential direction and has clearance in the radial direction, with respect to the other, movable blade 20b.
  • the coupling member 20d is attached to the tip of a rod 24a of the air cylinder 24 by a shaft 20g.
  • the coupling member 20d pivots counterclockwise in Figure 4
  • the movable blades 20b, 20b, attached to the coupling member 20d both pivot clockwise to cut the yarn ends Q in the slit G.
  • the air cylinder 24 is controlled on the basis of a sensing result from the photoelectric sensor 25. Specifically, when the photoelectric sensor 25 senses that the yarn ends Q are present in the slit G, the sensing result is transmitted to the control section 30, and in response to the received sensing result, the control section 30 controls the air cylinder 24 so that the rod 24a is retracted in a direction shown by reference character H.
  • control section 30 controls the air cylinder 24 so that the rod 24a advances in a direction opposite to that shown by reference character H. This control prevents the cutters 20, 20 from operating idly, allowing the cutters 20, 20 to last long.
  • the above-described rodless cylinder 23 is controlled on the basis of the sensing result from the above-described line sensor 12. Specifically, upon receiving a signal relating to the distribution information on the yarn ends Q from the line sensor 12, the above-described control section 30 controls the rodless cylinder 23 so that the yarn end cutting section 21 travels appropriately for the distribution information.
  • appropriately for the distribution information means that the yarn end cutting section 21 "travels toward an area in which the yarn ends are present, while avoiding an area in which no yarn end Q is present" or “travels more slowly in an area in which the yarn ends Q are densely present than in the other areas". This control allows the cutters 20, 20 to last long and makes it possible to inhibit the yarn end cutting section 21 from traveling uselessly.
  • Figure 8 is a diagram showing that the yarn end cutting section 21 has reached the start point (or end point) of the track R.
  • the above-described rodless cylinder 23 is controlled on the basis of sensing results from the proximity sensors 26, 26. That is, as shown in Figure 8 , the rodless cylinder 23 is controlled so as to reverse the traveling direction of the yarn end cutting section 21 every time the proximity sensors 26, 26 sense that the yarn end cutting section 21 has reached the start point or the end point of the track R. Specifically, upon receiving, from the proximity sensors 26, 26, a signal relating to the arrival of the yarn end cutting section 21, the control section 30 controls the rodless cylinder 23 so that the traveling direction of the yarn end cutting section 21 is reversed. This control allows the yarn end cutting section 21 to reliably reach the start point and the end point of the track R, and makes it possible to prevent the yarn ends Q at the opposite ends of the track R from failing to be cut.
  • the yarn end cutting device 4 operate as described below. That is, when the yarn ends Q extending from the yarn packages P dropped into the parts feeder 3 so as to straddle between the parts feeder conveyor 2 and the parts feeder 3 enter the slits 11, the presence of the yarn ends Q is sensed by the line sensor 12.
  • the line sensor 12 transmits the distribution information on the sensed yarn ends Q to the control section 30, and the control section 30 allows the yarn end cutting section 21 on the basis of the received distribution information to guide the yarn ends Q to the slit G.
  • the photoelectric sensor 25 Upon sensing the presence of the guided yarn ends Q, transmits the distribution information on the presence of the yarn ends Q to the control section 30.
  • the control section 30 Upon receiving the distribution information, the control section 30 controls the air cylinder 24 to drive the rod 24a backward in order to cut the yarn ends Q the presence of which has been detected by the photoelectric sensors 25. Thus, the movable blade 20b is caused to pivot via the coupling member 20d and thus cuts the yarn ends Q through cooperation with the fixed blade 20a. Then, a predetermined time later, the control section 30 controls the air cylinder 24 so that the rod 24a is drivingly advanced to open the closed cutters 20, 20 again.
  • the yarn package supply apparatus 1 is configured as described below. That is, the yarn package supply apparatus 1 comprises the parts feeder conveyor 2 that conveys the plurality of yarn packages P in the predetermined direction, the parts feeder 3 that aligns and supplies the plurality of yarn packages P dropped from the parts feeder conveyor 2, and the yarn end cutting device 4 arranged between the parts feeder conveyor 2 and the parts feeder 3 to cut the yarn ends Q from the yarn packages P extending so as to straddle between the parts feeder conveyor 2 and the parts feeder 3.
  • the yarn end cutting device 4 includes the yarn end cutting section 21 having the cutter 20 that cuts the yarn ends Q, the linear guide 22 that guides the yarn end cutting section 21 along the single track R along the width direction of the parts feeder conveyor 2, and the rodless cylinder 23 that drives the yarn end cutting section 21 guided by the linear guide 22 so that that the yarn end cutting section 21 reciprocates along the single track R.
  • the cutter 20 itself reciprocates. Consequently, the yarn ends Q can be reliably processed using only a small number of cutters 20.
  • the yarn end cutting section 21 reciprocates along the single track R, making the yarn end cutting device 4 compact.
  • the single track R may be shaped like a straight line or a circular arc.
  • the present embodiment is thus excellent in solving the problem of the Unexamined Japanese Utility Model Application Publication (Jikkai-Hei) No. 6-65370 , described above, that is, the problem of failing to allow an increase in the number of the slits 11 for an economical reason. That is, the present embodiment implements a configuration that allows only the number of the slits 11 to be increased without the need to increase the number of the cutters 20.
  • the yarn end cutting section 21 can not cut the yarn ends Q in the area in which the yarn end cutting section 21 travels. Also in this sense, the yarn end cutting device 4 according to the above-described embodiment is very efficient. This allows the yarn ends Q to be consecutively cut without the need to suspend the supply of the yarn packages P to the parts feeder 3.
  • the above-described yarn package supply apparatus 1 is configured as described above. That is, the track R is linear. This configuration enables a reduction in the time required to reciprocate the yarn end cutting section 21.
  • the structure of the linear guide 22 can also be simplified.
  • the cutter 20 moves along the reciprocating linear track, the yarn package supply apparatus 1 achieves space saving and simplification compared to the configuration of the Unexamined Japanese Patent Application Publication (Tokkai-Sho) No. 57-121514 , in which the moving scissors move along the ellipsoidal track.
  • the above-described yarn package supply apparatus 1 is further configured as follows. That is, the yarn end cutting section 21 has a pair of the cutters 20, 20 arranged at the opposite ends of the single track R so as to lie opposite each other. This configuration allows the yarn ends Q to be cut regardless of in which direction the yarn end cutting section 21 travels on the track R. Furthermore, the yarn ends Q at the opposite ends of the track R can be cut.
  • the above-described yarn package supply apparatus 1 is further configured as follows. That is, the yarn end cutting device 4 includes the line sensor 12 arranged along the single track R to sense the presence of the yarn ends Q.
  • the rodless cylinder 23 is controlled on the basis of the sensing result from the line sensor 12. This configuration allows the yarn end cutting section 21 to travel on the basis of the presence of the yarn ends Q.
  • the above-described yarn package supply apparatus 1 is further configured as follows. That is, the cutters 20 are configured like scissors.
  • the yarn end cutting section 21 comprises the photoelectric sensor 25 that senses the presence of the yarn ends Q in the cutters 20, 20.
  • the yarn end cutting device 4 further includes the air cylinder 24 that drivingly opens and closes the scissors-like cutters 20.
  • the air cylinder 24 is controlled on the basis of the sensing result from the photoelectric sensor 25. This configuration allows the cutters 20 to be opened and closed on the basis of the presence of the yarn ends Q.
  • the above-described yarn package supply apparatus 1 is further configured as follows. That is, the yarn end cutting device 4 comprises the proximity sensors 26, 26 that sense that the yarn end cutting section 21 has reached the start point and the end point of the single track R.
  • the rodless cylinder 23 is controlled so as to reverse the traveling direction of the yarn end cutting section 21 every time the proximity sensors 26, 26 sense that the yarn end cutting section 21 has reached the start point or the end point of the single track R. This configuration allows the yarn end cutting section 21 to reliably reach the start point and end point of the single track R.
  • the yarn package supply apparatus 1 is configured as follows. That is, the yarn cutting device 4 includes the yarn end cutting section 21 having the cutter 20 that cuts the yarn ends Q, the linear guide 22 that guides the yarn end cutting section 21 so that the cutter 20 is always positioned in the area in which the yarn ends Q are possibly present (the area located opposite the parts feeder conveyor 2 across the linear guide 22), and the rodless cylinder 23 that drives the yarn end cutting section 21 guided by the linear guide 22 so that the yarn end cutting section 21 travels within the area.
  • This configuration allows the yarn end cutting device 4 to always cut the yarn ends Q.
  • the cutters 20, 20 are configured to be opened and closed on the basis of the sensing results from the photoelectric sensors 25, 25.
  • the cutters 20, 20 may be configured to be repeatedly opened and closed at predetermined time intervals (for example, every one second). This configuration makes it possible to omit the photoelectric sensors 25, 25.
  • the yarn end cutting section 21 is configured to travel on the basis of the sensing result from the line sensor 12.
  • the yarn cutting section 21 may be configured to simply reciprocate at an equal speed. This configuration makes it possible to omit the line sensor 12.
  • the air cylinder 24 may be configured to be controlled on the basis of the sensing result from the line sensor 12. Specifically, upon receiving the above-described distribution information on the yarn ends Q from the line sensor 12, the control section 30 increases or reduces the time intervals at which the cutters 20, 20 are opened and closed, in accordance with the distribution information, to control the air cylinder 24.
  • the expression "in accordance with the distribution information” means that "the time intervals of opening and closing of the cutters 20, 20 are reduced for areas in which the yarn ends Q are densely present and increased for areas in which the yarn ends Q are not densely present".
  • This control allows the cutters 20, 20 to be opened and closed on the basis of the presence of the yarn ends Q. That is, the cutters 20, 20 avoid simultaneous cutting of a large amount of yarn ends Q but can cut every small amount of yarn ends Q. This allows the cutters 20, 20 to last long.
  • the cutters 20, 20 are drivingly opened and closed by the air cylinder 24.
  • a cam mechanism may be adopted which is composed of a disc member 41 rotated by a schematically shown motor 40 (a stepping motor or the like; this also applies to the description below) and the rod 24a.
  • a configuration may be adopted which includes a DC electromagnetic solenoid 42.
  • the yarn end cutting section 21 is driven by the rodless cylinder 23 so as to reciprocate.
  • a configuration may be adopted which is composed of a schematically shown motor 43 and a ball screw 44 rotationally driven by the motor 43.
  • a configuration may be adopted which is composed of a timing pulley 46 rotationally driven by the motor 45 and a timing belt 47 wound around the timing pulley 46.

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  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP20080004413 2007-03-23 2008-03-10 DIspositif d'alimentation de bobines de fil Active EP1972589B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007076273A JP2008230830A (ja) 2007-03-23 2007-03-23 管糸供給装置

Publications (3)

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EP1972589A2 true EP1972589A2 (fr) 2008-09-24
EP1972589A3 EP1972589A3 (fr) 2009-10-07
EP1972589B1 EP1972589B1 (fr) 2011-10-12

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JP (1) JP2008230830A (fr)
CN (1) CN101270517B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700109586A1 (it) * 2017-09-29 2019-03-29 Savio Macch Tessili Spa Dispositivo caricatore di spole, munito di mezzi diluitori, per macchina tessile e relativa macchina tessile
EP3686141A1 (fr) * 2019-01-25 2020-07-29 Murata Machinery, Ltd. Dispositif d'alimentation de bobine d'alimentation de fil

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JPS57121514A (en) 1980-12-05 1982-07-29 Schlafhorst Co Maschf Bobbin classifying unit
DE3334873A1 (de) 1983-09-27 1985-04-18 W. Schlafhorst & Co, 4050 Mönchengladbach Spulenvereinzelungsaggregat
JPH0665370U (ja) 1993-02-23 1994-09-16 村田機械株式会社 管糸供給装置

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700109586A1 (it) * 2017-09-29 2019-03-29 Savio Macch Tessili Spa Dispositivo caricatore di spole, munito di mezzi diluitori, per macchina tessile e relativa macchina tessile
EP3461774A1 (fr) * 2017-09-29 2019-04-03 Savio Macchine Tessili S.p.A. Dispositif chargeur de bobine, équipé de moyens de dilution, pour machines textiles et machine textile associée
EP3686141A1 (fr) * 2019-01-25 2020-07-29 Murata Machinery, Ltd. Dispositif d'alimentation de bobine d'alimentation de fil

Also Published As

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EP1972589B1 (fr) 2011-10-12
EP1972589A3 (fr) 2009-10-07
CN101270517A (zh) 2008-09-24
JP2008230830A (ja) 2008-10-02
CN101270517B (zh) 2011-08-31

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