EP3604187B1 - Spun yarn take-up machine - Google Patents
Spun yarn take-up machine Download PDFInfo
- Publication number
- EP3604187B1 EP3604187B1 EP19183595.8A EP19183595A EP3604187B1 EP 3604187 B1 EP3604187 B1 EP 3604187B1 EP 19183595 A EP19183595 A EP 19183595A EP 3604187 B1 EP3604187 B1 EP 3604187B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- ground wire
- frame
- take
- yarn threading
- 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.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 42
- 238000009987 spinning Methods 0.000 claims description 21
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 29
- 230000005611 electricity Effects 0.000 description 12
- 230000004048 modification Effects 0.000 description 11
- 238000012986 modification Methods 0.000 description 11
- 238000009413 insulation Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 9
- 238000009826 distribution Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D7/00—Collecting the newly-spun products
-
- 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
- B65H54/70—Other constructional features of yarn-winding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/003—Arrangements for threading or unthreading the guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
-
- 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 spun yarn take-up machine and a yarn threading assisting tool for the spun yarn take-up machine.
- a spun yarn take-up machine for taking up synthetic fiber yarns spun out from a spinning apparatus and for packaging them by winding onto bobbins with a yarn winder, including yarn threading portions where the yarns are threaded.
- Japanese Laid-Open Patent Publication No. 2015-165060 discloses a spun yarn take-up machine in which a take-up roller takes up plural yarns spun out from a spinning apparatus, and then, a yarn feed roller takes up and sends the yarns from the take-up roller to a yarn winder.
- the yarn winder includes plural distribution guides (yarn threading portions) to which the respective yarns sent from the yarn feed roller are threaded and winds the yarns onto bobbins while traversing the yarns with distribution guides functioning as fulcrums.
- yarn threading to the distribution guides is performed by using a yarn threading assisting tool having grooves in which the respective yarns are retained. An operator performs the yarn threading to each distribution guide while holding the yarn threading assisting tool retaining the yarns by hand.
- An object of the present invention is to provide a spun yarn take-up machine and a yarn threading assisting tool for the spun yarn take-up machine, which prevent an operator from receiving an electric shock when performing yarn threading.
- a spun yarn take-up machine includes a plurality of yarn threading portions to which yarns spun out from a spinning apparatus are threaded, the yarns being threaded to the yarn threading portions by using a yarn threading assisting tool capable of retaining the yarns, the spun yarn take-up machine comprising: a conductive frame; a ground wire; a first attaching portion by which the ground wire is conductively attached to the frame; and a second attaching portion by which the ground wire is conductively attached to the yarn threading assisting tool.
- the present invention it is possible to conductively attach the ground wire to the conductive frame and to conductively attach the ground wire to the yarn threading assisting tool.
- the spun yarn take-up machine is arranged such that an attaching position of the ground wire to the frame by the first attaching portion is above the yarn threading portions.
- the ground wire When the attaching position of the ground wire to the frame is low, the ground wire obstructs the yarn threading by the operator and deteriorates the workability.
- the attaching position of the ground wire to the frame is above the yarn threading portions, the deterioration of the workability on account of the ground wire is restrained.
- the spun yarn take-up machine of the first aspect further includes a take-up unit which is provided below the spinning apparatus and includes one or more rollers for taking up the yarns spun out from the spinning apparatus, an attaching position of the ground wire to the frame by the first attaching portion being above the take-up unit.
- the ground wire is less likely to interfere with the rollers of the take-up unit. It is therefore possible to restrain the ground wire from being caught by a roller.
- the spun yarn take-up machine of the second aspect further includes a yarn winding apparatus which is provided below the take-up unit to wind the yarns supplied from the take-up unit onto respective bobbins the yarn threading portions being provided below the take-up unit and the yarns supplied from the take-up unit to the yarn winding apparatus being threaded to the yarn threading portions.
- the present invention electric charge is accumulated in the yarns on account of friction between one or more roller of the take-up member and the yarns. On this account, the amount of the electric charge of the yarn threading assisting tool is large when the yarns sent from the take-up unit to the yarn winding apparatus are threaded to the yarn threading portions.
- the present invention is therefore effectively applied to discharge the static electricity accumulated in the yarn threading assisting tool to the frame via the ground wire.
- the frame is ferromagnetic and the first attaching portion is a conductive magnet fixed to the ground wire.
- the spun yarn take-up machine of any one of the first to fourth aspects is arranged so that the second attaching portion detachably attaches the ground wire to the yarn threading assisting tool.
- one yarn threading assisting tool can be used for plural spun yarn take-up machines.
- the spun yarn take-up machine of the fifth aspect is arranged so that the second attaching portion is a hook member which is fixed to the ground wire and is able to be hooked into a hole formed in the yarn threading assisting tool.
- the spun yarn take-up machine of the fifth aspect is arranged so that the second attaching portion is a ring-shaped member which is fixed to the ground wire, is able to be engaged with a hole formed in the yarn threading assisting tool, and is openable and closable.
- the spun yarn take-up machine of the sixth or seventh aspect is arranged so that
- the second attaching portion (hook member or ring-shaped member) fixed to the ground wire can be engaged with not the hole of the yarn threading assisting tool but the engaging portion of the engaging member of the frame.
- One end portion of the ground wire is attached to the frame by the first attaching portion and the second attaching portion is fixed to the other end portion of the ground wire. With this arrangement, the entirety of the ground wire is attached to the frame.
- the spun yarn take-up machine of the fifth aspect is arranged so that
- the entirety of the ground wire frame can be attached to the frame by the retaining portion, when the yarn threading is not performed.
- the spun yarn take-up machine of any one of the first to ninth aspects is arranged so that the attaching position of the ground wire to the frame by the first attaching portion is closer to a working space than the yarn threading portions, in a direction in which the yarn threading portions are lined up.
- the attaching position of the ground wire to the frame is far from the working space (i.e., on the far side)
- the operator is required to stretch his/her arm to the far side when attaching the ground wire.
- the attaching operation is tiresome.
- the ground wire when the ground wire is attached on the far side, the ground wire tends to overlap the yarn path in the yarn threading, and the ground wire may interfere with the yarns.
- the attachment of the ground wire to the frame can be easily done and interference of the ground wire to the yarns can be restrained.
- a yarn threading assisting tool for threading yarns spun out from a spinning apparatus to yarn threading portions of a spun yarn take-up machine includes:
- the ground wire conductively attached to the main body is conductively attachable to the conductive frame of the spun yarn take-up machine.
- the yarn threading assisting tool for a spun yarn take-up machine of the twelfth aspect further includes a winding mechanism which is capable of winding the ground wire.
- the portability of the yarn threading assisting tool is improved.
- FIG. 1 is a schematic diagram of a facility in which a spun yarn take-up machine 1 of the present embodiment is provided.
- the spun yarn take-up machine 1 is configured to take-up yarns 10, made of polyester, nylon, etc., spun out from a spinning apparatus 2. by a take-up unit 4 provided below the spinning apparatus 2, and then to wind the yarns by a yarn winding apparatus 5 provided below the take-up unit 4.
- the leftward direction in FIG. 1 will be referred to as "left”
- the rightward direction in FIG. 1 will be referred to as "right”
- the direction toward the viewer of FIG. 1 will be referred to as "front”
- the direction away from the viewer of FIG. 1 will be referred to as "rear”.
- the take-up unit 4 includes members such as a yarn guide 20, a yarn feed roller 16, three first heating rollers 4a, 4b, and 4c, two second heating rollers 4d and 4e, and yarn feed rollers 17 to 19, which are provided in order along the yarn running direction.
- the yarn guide 20 is provided below the spinning apparatus 2. As shown in FIG. 2 , the yarn guide 20 bends the yarns 10 spun out from the spinning apparatus 2 and guides the yarns 10 to the yarn feed roller 16.
- the yarn feed roller 16 is disposed so that its axis is parallel to the front-rear direction. Onto the yarn feed roller 16, the yarns 10 guided by the yarn guide 20 are wound. The yarns 10 wound onto the yarn feed roller 16 are sent to a thermal insulation box 26 through a slit 26a, by the yarn feed roller 16.
- the three first heating rollers 4a, 4b, and 4c and the two second heating rollers 4d and 4e are housed in the thermal insulation box 26.
- Each of the first heating rollers 4a, 4b, and 4c and the second heating rollers 4d and 4e is disposed so that its axis is parallel to the front-rear direction.
- a door (not illustrated) is attached to be openable and closable and to cover the front end surfaces of the first heating rollers 4a, 4b, and 4c and the second heating rollers 4d and 4e.
- Each of the first heating rollers 4a, 4b, and 4c and the second heating rollers 4d and 4e is heated by a heater (not illustrated) provided inside each roller. Heat radiation from the first heating rollers 4a, 4b, and 4c and the second heating rollers 4d and 4e is restrained because these rollers are housed in the thermal insulation box 26 which is made of a heat insulating material.
- the surface temperatures of the second heating rollers 4d and 4e are arranged to be temperatures (e.g., 120 to 140 degrees centigrade) higher than the surface temperatures (e.g., 80 to 100 degrees centigrade) of the first heating rollers 4a, 4b, and 4c.
- Each of the first heating rollers 4a, 4b, and 4c and the second heating rollers 4d and 4e is a drive roller driven by a motor (not illustrated).
- the second heating rollers 4d and 4e are arranged to be higher in yarn feeding speed than the first heating rollers 4a, 4b, and 4c.
- the yarns 10 sent to the thermal insulation box 26 are drawn between the first heating rollers 4a, 4b, and 4c and the second heating rollers 4d and 4e.
- the yarns 10 having been drawn are heated by the second heating rollers 4d and 4e, with the result that the drawn yarns are thermally set.
- the yarns 10 having been heated and drawn are sent out toward a yarn feed roller 17 which is provided outside the thermal insulation box 26, via a slit 26b.
- the yarn feed roller 17 is disposed so that its axis is parallel to the front-rear direction.
- the yarns 10 having been sent out from the thermal insulation box 26 are wound onto the yarn feed roller 17 and are then sent to yarn feed rollers 18 and 19 which are provided downstream in the yarn running direction of the yarn feed roller 17.
- the yarn feed rollers 18 and 19 are disposed so that their axes are parallel to the left-right direction.
- the yarns 10 having been sent out from the yarn feed roller 17 are wound onto the yarn feed roller 18 and the yarn feed roller 19 in this order, and are then sent to the yarn winding apparatus 5.
- the two yarn feed rollers 18 and 19 are supported by a long supporting member 27 which extends obliquely upward and rearward from a location above the front end portion of the yarn winding apparatus 5.
- the yarn feed roller 18 is attached to the front end portion of the supporting member 27.
- the yarn feed roller 19 is attached to be movable relative to the supporting member 27, along the length of the supporting member 27.
- the yarn feed roller 19 is moved, by an elevation motor (not illustrated), between a "front position" indicated by two-dot chain lines in FIG. 2 and a "rear position” indicated by solid lines in the figure.
- the front position of the yarn feed roller 19 is a position for yarn threading
- the rear position is a position for yarn winding by the yarn winding apparatus 5.
- Yarn guides 21 to 24 are provided immediately upstream of the yarn feed rollers 16 to 19 in the yarn feeding direction, respectively. Because the yarns 10 are threaded to these yarn guides 21 to 24, the yarns 10 are separated from one another at predetermined intervals in the arrangement direction of the yarns 10.
- the yarn winding apparatus 5 includes two winding units 50.
- the two winding units 50 are lined up in the left-right direction and are provided to sandwich a yarn path of the yarns 10 which are sent from the yarn feed roller 19 above.
- the two winding units 50 are provided to be symmetrical in the left-right direction.
- the yarns 10 spun out from the spinning apparatus 2 are sent to the two winding units 50 in a separated manner. For example, when 24 yarns 10 are sent from the spinning apparatus 2, a half of them, i.e., 12 yarns are wound by the left winding unit 50, whereas the remaining half of the yarns, i.e., 12 yarns are wound by the right winding unit 50.
- Each winding unit 50 includes members such as a frame 15, a disc-shaped turret 6 rotatably attached to the frame 15, two bobbin holders 7 to which bobbins B are attached along the axial direction of the bobbin holders, a supporting member 12 extending in the front-rear direction to be parallel to the bobbin holder 7, fulcrum guides 13 to which the respective yarns 10 are threaded, traverse guides 8 by which the respective yarns 10 wound onto bobbins B are traversed, and a contact roller 9 making contact with the bobbins B attached to the bobbin holder 7.
- the two bobbin holders 7 are rotatably supported at rear end portions by the turret 6 so that the axis of each bobbin holder 7 is parallel to the front-rear direction.
- Each of the two bobbin holders 7 is rotationally driven by a motor (not illustrated).
- the bobbins B attached to the bobbin holder 7 rotate together with the bobbin holder 7.
- the positions of the two bobbin holders 7 are switched between a winding position (upper position in FIG. 1 and FIG. 2 ) and a retracted position (lower position in FIG. 1 and FIG. 2 ).
- Each fulcrum guide 13 functions as a fulcrum of traversal of the yarn 10 by the traverse guide 8.
- the fulcrum guides 13 are movably attached to the guide member 11.
- the guide member 11 is disposed so that its length is parallel to the axial direction (front-rear direction) of the bobbin holder 7.
- the fulcrum guides 13 attached to the guide member 11 are aligned in a line in the front-rear direction.
- the fulcrum guides 13 are arranged to be movable between a fulcrum position shown in FIG. 2 where the fulcrum guides 13 are provided directly above the respective bobbins B and function as fulcrums of traversal and a yarn threading position shown in FIG. 3 where all fulcrum guides 13 are gathered to a front end portion of the guide member 11 and neighboring fulcrum guides 13 are close to each other.
- the yarns 10 threaded to the respective fulcrum guides 13 are wound onto bobbins B attached to the bobbin holder 7 at the winding position, respectively, while being traversed about the fulcrum guides 13 in the axial direction of the bobbins B by the traverse guides 8.
- packages P are formed around the bobbins B.
- a plurality of spun yarn take-up machines 1 are aligned in the left-right direction.
- frames 91 and 92 are provided to support members such as the thermal insulation box 26 and the yarn feed rollers 16 and 17 of each spun yarn take-up machine 1.
- the frame 91 extends in the up-down direction and is provided between neighboring spun yarn take-up machines 1.
- An upper end portion of the frame 91 is substantially as high as an upper end portion of the thermal insulation box 26.
- the frame 92 is provided above the frame 91 and extends along the left-right direction across plural spun yarn take-up machines 1.
- the height from the floor surface F on which the yarn winding apparatus 5 is placed to the frame 92 is about 2.8 meters.
- the frame 92 is located above the components (yarn guides 20 to 24, the yarn feed rollers 16 to 19, the first heating rollers 4a, 4b, and 4c, and the second heating rollers 4d and 4e) constituting the take-up unit 4.
- the frame 92 is made of a material which is conductive and ferromagnetic, such as iron.
- the frame 92 is grounded. Furthermore, as shown in FIG.
- a front surface of the frame 92 is located before the fulcrum guides 13. In other words, in the direction in which the fulcrum guides 13 are lined up, the front surface of the frame 92 is closer to a space where an operator (see FIG. 1 ) performs after-mentioned yarn threading operation than the fulcrum guides 13.
- the frame 92 is provided substantially directly below the spinning apparatus 2.
- the yarns 10 spun out from the spinning apparatus 2 pass in front of the frame 92 and reach the yarn guide 20, are bended at the yarn guide 20, and are then sent to the yarn feed roller 16.
- the yarns 10 are threaded by the operator to the yarn guides 20 to 24 and the fulcrum guides 13 of the above-mentioned spun yarn take-up machine 1, by using a yarn threading assisting tool 60 shown in FIG. 4 and FIG. 5 .
- the yarn threading assisting tool 60 is a flat plate member having a plurality of retaining grooves 61 and made of stainless steel.
- the retaining grooves 61 retain the respective yarns 10, and each of the grooves is a slit cut off from the edge.
- the respective retaining grooves 61 are arranged radially in a fan-like shape widen from the open end side (thread inlet side) of the slit toward the closed end side.
- Each retaining groove 61 linearly extends from the open end side toward the closed end side. For this reason, an inclination angle between the central retaining groove 61 and another retaining groove 61 increases as the another retaining groove 61 gets away from the central one. Furthermore, the retaining grooves 61 are arranged so that the distance W1 between neighboring retaining grooves 61 on the open end side is shorter than the distance W2 between the neighboring retaining grooves 61 on the closed end side.
- the yarn threading assisting tool 60 has a grip 62 which extends along the direction in which the retaining grooves 61 are aligned.
- a hole 63 is formed at an end portion of the grip 62 on the opposite side of the retaining grooves 61.
- a hook member 72 fixed to an after-mentioned ground wire 70 is hooked into the hole 63.
- a conductive magnet 71 is fixed to one end portion of the ground wire 70.
- the magnet 71 is magnetically attached to the front surface of the frame 92 (see FIG. 1 ).
- the ground wire 70 is conductively attached to the frame 92 by the magnet 71.
- the hook member 72 shown in FIG. 5 is attached to the other end portion of the ground wire 70, which is opposite to the one end portion to which the magnet 71 is fixed.
- the hook member 72 is made of a conductive material.
- the hook member 72 can be hooked into the hole 63 of the yarn threading assisting tool 60.
- the ground wire 70 can be conductively and detachably attached to the yarn threading assisting tool 60.
- the hook member 72 is intrinsically made of a magnet in itself, or a magnet (not illustrated) is attached extrinsically.
- the hook member 72 is hooked into the hole 63 of the yarn threading assisting tool 60 as shown in FIG. 5 .
- the hook member 72 is detached from the yarn threading assisting tool 60 and is magnetically fixed to the frame 92.
- the whole ground wire 70 is attached to the frame 92 as indicated by a one-dot chain line in FIG. 1 .
- the ground wire 70 is attached to a location between two groups of the yarns 10 which are spun out from the spinning apparatuses 2 of two neighboring spun yarn take-up machines 1 and pass in front of the frame 92.
- the ground wire 70 of the present embodiment has a spring property (elasticity). Because the ground wire 70 has a spring property, the ground wire 70 is shortened and the entirety of the wire is attached to the frame 92 when the yarn threading is not performed, with the result that a space for attaching the ground wire 70 is downsized. The ground wire 70 is therefore attached to a location where the wire does not interfere with the yarns 10 passing in front of the frame 92. Furthermore, because the ground wire 70 can be elongated when the yarn threading is performed, the accessible range is wide.
- the yarn threading is performed in a state in which the yarn feed roller 19 is at the front position (indicated by two-dot chain lines in FIG. 2 ) and the fulcrum guides 13 are at the yarn threading position (which is shown in FIG. 3 ).
- the operator performs the yarn threading from the front side of the spun yarn take-up machine 1.
- the whole ground wire 70 is attached to the frame 92 as the magnet 71 and the hook member 72 are attached to the frame 92, as indicated by one-dot chain lines in FIG. 1 .
- the operator performing the yarn threading detaches the hook member 72 of the ground wire 70 from the frame 92 and hooks the detached member into the hole 63 of the yarn threading assisting tool 60, as shown in FIG. 5 .
- the operator works on a step which is not illustrated.
- the operator performs the yarn threading to the yarn guide 20, the yarn guide 21, the yarn feed roller 16, the first heating rollers 4a, 4b, and 4c, the second heating rollers 4d and 4e, the yarn guide 22, the yarn feed roller 17, the yarn guide 23, the yarn feed roller 18, the yarn guide 24, and the yarn feed roller 19, while sucking the yarns 10 spun out from the spinning apparatus 2 by a suction gun (not illustrated).
- the operator performs the yarn threading to the fulcrum guides 13. Subsequently, at a location between the yarn feed roller 19 and the suction gun (not illustrated), the operator combs the yarn threading assisting tool 60 in the yarns 10 as shown in FIG. 5 . As a result, the yarns 10 threaded into the respective retaining grooves 61 are held by the retaining grooves 61 in a distributed manner.
- the yarns are threaded to the respective fulcrum guides 13 at the yarn threading position, as the yarn threading assisting tool 60 retaining the yarns 10 is operated.
- the operator holds the yarn threading assisting tool 60 and moves it so that the respective yarns 10 retained by the retaining grooves 61 are moved to the leading end portions 13a of the fulcrum guides 13corresponding to the respective yarns 10.
- the yarn threading assisting tool 60 is moved in a direction (obliquely leftward and forward as indicated by the arrow in the figure) which intersects with the front-rear direction which is identical with the arrangement direction of the fulcrum guides 13, on a horizontal plane.
- the yarns 10 are threaded to the respective fulcrum guides 13 while running along tracks indicated by two-dot chain lines in the figure.
- the yarns 10 are inserted into the fulcrum guides 13 from one side.
- the position of the yarn threading assisting tool 60 before the yarn threading is indicated by two-dot chain lines.
- the yarn feed roller 19 is moved from the front position to the rear position. Subsequently, the fulcrum guides 13 are moved from the yarn threading position to the fulcrum position. Then winding starts so that the yarns 10 are wound by bobbins B provided below.
- the spun yarn take-up machine 1 of the first embodiment includes a plurality of yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24) to which yarns 10 spun out from the spinning apparatus 2 are threaded, and threads the yarns to the yarn threading portions by using the yarn threading assisting tool 60 which is able to retain the yarns 10.
- the spun yarn take-up machine 1 includes the conductive frame 92, the ground wire 70, the magnet 71 which conductively attaches the ground wire 70 to the frame 92, and the hook member 72 which conductively attaches the ground wire 70 to the yarn threading assisting tool 60.
- the ground wire 70 is attached to the frame 92 which is above the yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24).
- the attaching position of the ground wire 70 to the frame 92 by the magnet 71 is above the yarn threading portions.
- the attaching position of the ground wire 70 is low, the ground wire 70 obstructs the yarn threading by the operator and deteriorates the workability.
- the attaching position of the ground wire 70 is above the yarn threading portions, the deterioration of the workability on account of the ground wire 70 is restrained.
- the ground wire 70 is attached to the frame 92 which is above the take-up unit 4.
- the attaching position of the ground wire 70 to the frame 92 by the magnet 71 is above the take-up unit 4. Because the attaching position of the ground wire 70 is above the take-up unit 4, the ground wire 70 is less likely to interfere with the rollers (yarn feed rollers 16 to 19) of the take-up unit 4. It is therefore possible to restrain the ground wire 70 from being caught by a roller.
- yarns are threaded by using the yarn threading assisting tool 60 to the fulcrum guides 13 which are provided below the take-up unit 4 and to which the yarns 10 sent from the take-up unit 4 to the yarn winding apparatus 5 are threaded.
- electric charge is accumulated in the yarns 10 on account of friction between the rollers (yarn feed rollers 16 to 19, first heating rollers 4a, 4b, and 4c, and second heating rollers 4d and 4e) of the take-up unit 4 and the yarns 10.
- the amount of the electric charge of the yarn threading assisting tool 60 is large when the yarns 10 sent from the take-up unit 4 to the yarn winding apparatus 5 are threaded to the yarn threading portions.
- the present invention is therefore effectively applied to discharge the static electricity accumulated in the yarn threading assisting tool 60 to the frame 92 via the ground wire 70.
- the fulcrum guides 13 are aligned in a line in the front-rear direction.
- the yarn threading is performed while the yarn threading assisting tool 60 is moved along one direction which intersects with the front-rear direction in the horizontal plane.
- the positional relationship between the attaching position of the ground wire 70 to the frame 92 and the yarn threading assisting tool 60 is changed.
- the ground wire 70 may be warped depending on the positional relationship between the attaching position of the ground wire 70 to the frame 92 and the yarn threading assisting tool 60.
- the attaching position of the ground wire 70 to the frame 92 is above the take-up unit 4 and the fulcrum guides 13 are provided below the take-up unit 4, and the distance between the attaching position of the ground wire 70 to the frame 92 and the fulcrum guides 13 is relatively long.
- the warpage of the ground wire 70 is relatively small on the yarn threading operation, and the ground wire 70 is less likely to be caught by a roller of the take-up unit 4 or the like. As such, the present invention is effectively employed.
- the frame 92 is ferromagnetic and the conductive magnet 71 is fixed to the ground wire 70.
- the ground wire 70 is conductively attached to the frame 92 by the magnet 71. It is therefore easy to conductively attach the ground wire 70 to the frame 92.
- the ground wire 70 can be detachably attached to the yarn threading assisting tool 60. It is therefore possible to detach the ground wire 70 from the yarn threading assisting tool 60 when the yarn threading is not performed. The operator who performs the yarn threading is able to carry the yarn threading assisting tool 60. Furthermore, it is possible to use one yarn threading assisting tool 60 for plural spun yarn take-up machines 1.
- the hook member 72 which can be hooked into the hole 63 of the yarn threading assisting tool 60 is fixed to the ground wire 70. It is therefore easy to detachably attach the ground wire 70 to the yarn threading assisting tool 60.
- the magnet 71 is fixed to one end portion of the ground wire 70 in order to attach the ground wire 70 to the frame 92.
- the hook member 72 is fixed to the other end portion of the ground wire 70, which is opposite to the one end portion to which the magnet 71 is fixed.
- the hook member 72 is intrinsically made of a magnet, or a magnet is attached extrinsically. It is therefore possible to magnetically attach the hook member 72 to the frame 92 in a detachable manner.
- the entirety of the ground wire 70 can therefore be attached to the frame 92 when the yarn threading is not performed. It is possible to restrain the ground wire 70 from hanging down from the frame 92 and making contact with, for example, the yarns 10 and the rollers of the take-up unit 4, when the yarn threading is not performed.
- FIG. 7(a) and FIG. 7(b) show a yarn threading assisting tool of the second embodiment of the present invention. While in the embodiment above-mentioned the spun yarn take-up machine 1 includes the ground wire 70, in the present embodiment a yarn threading assisting tool 160 includes a ground wire 170.
- the spun yarn take-up machine 1 includes the ground wire 70
- a yarn threading assisting tool 160 includes a ground wire 170.
- members identical with those in the first embodiment will be denoted by the same reference numerals and the explanations thereof may not be repeated.
- the yarn threading assisting tool 160 of the present embodiment includes a plate-shaped main body 165 in which retaining grooves 161 and a grip 162 are formed, the ground wire 170 conductively attached to the main body 165, a winding mechanism 175 configured to wind the ground wire 170 extending from the main body 165, and a magnet 171 which is pasted on a casing 175a of the winding mechanism 175.
- the magnet 171 is conductive, and electricity can be transmitted between the magnet 171 and the ground wire 170.
- the winding mechanism 175 is not detailed because it is a known mechanism disclosed in, for example, Japanese Unexamined Patent Publication No. 2005-345107 .
- the winding mechanism 175 is arranged such that, when an operation button (not illustrated) is not operated, the ground wire 170 drawn out from the casing 175a by an operator is not wound back even if the operator removes a hand from the ground wire 170. When the operation button (not illustrated) is operated, the ground wire 170 having been drawn out is wound back to the casing 175a.
- the yarn threading assisting tool 160 When yarn threading is not performed, the yarn threading assisting tool 160 is arranged such that the ground wire 170 is wound by the winding mechanism 175, and the yarn threading assisting tool 160 is held by the operator in this state. When yarn threading is not performed, the yarn threading assisting tool 160 may be stored in the vicinity of the spun yarn take-up machine 1. When performing the yarn threading, the operator draws the ground wire 170 out from the casing 175a of the winding mechanism 175 of the yarn threading assisting tool 160 and magnetically fixes the magnet 171 to the frame 92. As a result, electricity becomes transmittable between the ground wire 170 and the frame 92.
- the ground wire 170 conductively attached to the main body 165 can be conductively attached to the conductive frame 92 of the spun yarn take-up machine 1. It is therefore possible to discharge the static electricity accumulated in the main body 165 of the yarn threading assisting tool 160 to the frame 92 via the ground wire 170, when the operator performs the yarn threading to the fulcrum guides 13 by using the yarn threading assisting tool 160. As a result, it is possible to prevent the operator from receiving an electric shock when performing the yarn threading.
- the winding mechanism 175 capable of winding the ground wire 170 is provided. Because the ground wire 170 is wound by the winding mechanism 175 when the yarn threading is not performed, the portability of the yarn threading assisting tool 160 is improved.
- the ground wire 70 may be attached to the frame 92 by another means.
- the ground wire 70 may be fixed by using a screw.
- the hook member 72 may be attached to the frame 92 by using another means.
- a ring-shaped member may be provided on the frame 92 to hook the hook member 72.
- hook members 271 and 272 are fixed to end portions of a ground wire 270, respectively.
- the hook member 271 is hooked into a ring-shaped member 274a of the frame 92.
- the hook member 272 is hooked into a ring-shaped member 275a of the frame 92 when the yarn threading is not performed.
- the entirety of the ground wire 270 is attached to the frame 92 when the yarn threading is not performed.
- the hook member 272 is detached from the ring-shaped member 275a and is hooked into the hole 63 of the yarn threading assisting tool 60 in the same manner as in the first embodiment (see FIG. 5 ).
- the ring-shaped members 274a and 275a and the hook members 271 and 272 are made of a conductive material. On this account, as the hook member 271 is hooked into the ring-shaped member 274a, the ground wire 270 is conductively attached to the frame 92.
- the hook member 272 may be magnetically attached to the frame 92 in the same manner as in the first embodiment.
- the first and second embodiments above and the first modification of the first embodiment describe that the ground wire 70 (170, 270) is attached to the frame 92 which is above the take-up unit 4 and the yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24) to which yarns are threaded by the yarn threading assisting tool 60 (160)
- the fulcrum guides 13 are aligned in a line in the front-rear direction
- the arrangement direction of the fulcrum guides 13 is not limited to this.
- the fulcrum guides may be aligned in a line in a direction intersecting with the front-rear direction, or may not be aligned in a line.
- the ground wire 70 is detachably attached to the yarn threading assisting tool 60 by the hook member 72 (272), the disclosure is not limited to this arrangement.
- the ground wire 70 is detachably attached to the yarn threading assisting tool 60 by an openable ring-shaped member 372 instead of the hook member 72 (272).
- the ring-shaped member 372 is formed of two circular-arc-shaped members 372a and 372b. The circular-arc-shaped members 372a and 372b are connected to each other at end portions by a shaft 372c.
- the ring-shaped member 372 is switched between a closed state in which a ring shape is formed as shown in FIG. 9(a) and an open state in which the ring is partially cut out as shown in FIG. 9(b) , as the circular-arc-shaped members 372a and 372b are rotated about the shaft 372c.
- the ring-shaped member 372 is opened.
- the ring-shaped member 372 is closed. This prevents the ground wire 70 from being detached from the yarn threading assisting tool 60 during the yarn threading.
- the ring-shaped member 372 may not be formed of the two circular-arc-shaped members 372a and 372b.
- the ring-shaped member may be formed of one circular-arc-shaped member and one rectilinear member, such as a carabiner.
- the ground wire 70 (270) may not be detachable from the yarn threading assisting tool 60.
- the hook member 72 (272) may not be attachable to the frame 92.
- the magnet 171 is pasted onto the casing 175a of the winding mechanism 175, and the ground wire 170 is attached to the frame 92 by magnetically fixing the magnet 171 to the frame 92.
- means for attaching the ground wire 170 to the frame 92 is not limited to this.
- the ground wire 170 may be attached to the frame 92 in such a way that a hook member provided on the casing 175a of the winding mechanism 175 is hooked into a ring-shaped member provided on the frame 92.
- the yarn threading assisting tool 60 may be used to perform yarn threading to at least one of the yarn guides 20 to 24 and the fulcrum guides 13.
- ground wire 70 has a spring property (elasticity)
- the ground wire 70 may not have a spring property (elasticity), on condition that the ground wire 70 can be attached to a position where the wire does not interfere with the yarns 10 when the yarn threading is not performed and the ground wire 70 is long enough for the yarn threading.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
- The present invention relates to a spun yarn take-up machine and a yarn threading assisting tool for the spun yarn take-up machine.
- There exists a spun yarn take-up machine for taking up synthetic fiber yarns spun out from a spinning apparatus and for packaging them by winding onto bobbins with a yarn winder, including yarn threading portions where the yarns are threaded. For example,
Japanese Laid-Open Patent Publication No. 2015-165060 - In the spun yarn take-up machine of
Japanese Laid-Open Patent Publication No. 2015-165060 - Another example of the prior art can be found in
document DE 10 2011 016786 A1 . - In recent years, the number of yarns processed by one spun yarn take-up machine has been increased (large number yarn production) and the winding speed of winding yarns has been increased. In accordance with the advancement of the large number yarn production and the high-speed winding, an amount of static electricity generated due to the friction between the yarns and the yarn threading assisting tool increases. Furthermore, in the spun yarn take-up machine, oil may be applied to the yarns in order to restrain yarn breakage and generation of fluff in the running yarns. When the density of the used oil is high, the amount of static electricity generated due to the friction between the yarns and the yarn threading assisting tool increases.
- When the yarn threading assisting tool is electrically charged, electric discharge may occur between the body of an operator performing yarn threading by using the yarn threading assisting tool and a metal part around the operator. When the amount of static electricity generated due to the friction between the yarns and the yarn threading assisting tool is large as described above, the electric charge amount of the yarn threading assisting tool is large, with the result that the operator receives a severe electric shock when electric discharge occurs. This prevents the operator from comfortably performing the yarn threading.
- An object of the present invention is to provide a spun yarn take-up machine and a yarn threading assisting tool for the spun yarn take-up machine, which prevent an operator from receiving an electric shock when performing yarn threading.
- According to the first aspect of the invention, a spun yarn take-up machine according to
claim 1 includes a plurality of yarn threading portions to which yarns spun out from a spinning apparatus are threaded, the yarns being threaded to the yarn threading portions by using a yarn threading assisting tool capable of retaining the yarns, the spun yarn take-up machine comprising: a conductive frame; a ground wire; a first attaching portion by which the ground wire is conductively attached to the frame; and a second attaching portion by which the ground wire is conductively attached to the yarn threading assisting tool. - According to the present invention, it is possible to conductively attach the ground wire to the conductive frame and to conductively attach the ground wire to the yarn threading assisting tool.
- On this account, it is possible to discharge the static electricity accumulated in the yarn threading assisting tool to the frame via the ground wire,
when the operator performs the yarn threading to the yarn threading portions by using the yarn threading assisting tool. - As a result, it is possible to prevent the operator from receiving an electric shock when performing the yarn threading.
- According to the first aspect of the invention, the spun yarn take-up machine is arranged such that an attaching position of the ground wire to the frame by the first attaching portion is above the yarn threading portions.
- When the attaching position of the ground wire to the frame is low, the ground wire obstructs the yarn threading by the operator and deteriorates the workability. In the present invention, because the attaching position of the ground wire to the frame is above the yarn threading portions, the deterioration of the workability on account of the ground wire is restrained.
- According to the second aspect of the invention, the spun yarn take-up machine of the first aspect further includes a take-up unit which is provided below the spinning apparatus and includes one or more rollers for taking up the yarns spun out from the spinning apparatus, an attaching position of the ground wire to the frame by the first attaching portion being above the take-up unit.
- In the present invention, because the attaching position of the ground wire to the frame is above the take-up unit, the ground wire is less likely to interfere with the rollers of the take-up unit. It is therefore possible to restrain the ground wire from being caught by a roller.
- According to the third aspect of the invention, the spun yarn take-up machine of the second aspect further includes a yarn winding apparatus which is provided below the take-up unit to wind the yarns supplied from the take-up unit onto respective bobbins the yarn threading portions being provided below the take-up unit and the yarns supplied from the take-up unit to the yarn winding apparatus being threaded to the yarn threading portions.
- In the present invention, electric charge is accumulated in the yarns on account of friction between one or more roller of the take-up member and the yarns. On this account, the amount of the electric charge of the yarn threading assisting tool is large when the yarns sent from the take-up unit to the yarn winding apparatus are threaded to the yarn threading portions. The present invention is therefore effectively applied to discharge the static electricity accumulated in the yarn threading assisting tool to the frame via the ground wire.
- According to the fourth aspect of the invention, in the spun yarn take-up machine of any one of the first to third aspects, the frame is ferromagnetic and the first attaching portion is a conductive magnet fixed to the ground wire.
- According to the present invention, it is easy to conductively attach the ground wire to the frame.
- According to the fifth aspect of the invention, the spun yarn take-up machine of any one of the first to fourth aspects is arranged so that the second attaching portion detachably attaches the ground wire to the yarn threading assisting tool.
- According to the present invention, it is possible to detach the ground wire from the yarn threading assisting tool when the yarn threading is not performed. The operator who performs the yarn threading is therefore able to carry the yarn threading assisting tool. Furthermore, one yarn threading assisting tool can be used for plural spun yarn take-up machines.
- According to the sixth aspect of the invention, the spun yarn take-up machine of the fifth aspect is arranged so that the second attaching portion is a hook member which is fixed to the ground wire and is able to be hooked into a hole formed in the yarn threading assisting tool.
- According to the present invention, it is easy to detachably attach the ground wire to the yarn threading assisting tool.
- According to the seventh aspect of the invention, the spun yarn take-up machine of the fifth aspect is arranged so that the second attaching portion is a ring-shaped member which is fixed to the ground wire, is able to be engaged with a hole formed in the yarn threading assisting tool, and is openable and closable.
- According to the present invention, it is easy to detachably attach the ground wire to the yarn threading assisting tool.
- According to the eighth aspect of the invention, the spun yarn take-up machine of the sixth or seventh aspect is arranged so that
- the first attaching portion attaches one end portion of the ground wire to the frame,
- the second attaching portion is fixed to the other end portion of the ground wire, which is opposite to the one end portion,
- and an engaging member including an engaging portion capable of being engaged with the second attaching portion is provided on the frame.
- According to the present invention, when the yarn threading is not performed,
the second attaching portion (hook member or ring-shaped member) fixed to the ground wire can be engaged with not the hole of the yarn threading assisting tool but the engaging portion of the engaging member of the frame. - One end portion of the ground wire is attached to the frame by the first attaching portion and the second attaching portion is fixed to the other end portion of the ground wire. With this arrangement, the entirety of the ground wire is attached to the frame.
- It is therefore possible to restrain the ground wire from hanging down from the frame and making contact with, for example, the yarns and/or the rollers of the take-up unit, when the yarn threading is not performed.
- According to the ninth aspect of the invention, the spun yarn take-up machine of the fifth aspect is arranged so that
- the first attaching portion attaches one end portion of the ground wire to the frame, and
- a retaining portion is further provided to detachably attach another end portion of the ground wire opposite to the one end portion to the frame so as to attach the entirety of the ground wire to the frame.
- According to the present invention, the entirety of the ground wire frame can be attached to the frame by the retaining portion, when the yarn threading is not performed.
- It is therefore possible to restrain the ground wire from hanging down from the frame and making contact with, for example, the yarns and/or the rollers of the take-up unit, when the yarn threading is not performed.
- According to the tenth aspect of the invention, the spun yarn take-up machine of any one of the first to ninth aspects is arranged so that
the attaching position of the ground wire to the frame by the first attaching portion is closer to a working space than the yarn threading portions, in a direction in which the yarn threading portions are lined up. - When the attaching position of the ground wire to the frame is far from the working space (i.e., on the far side), the operator is required to stretch his/her arm to the far side when attaching the ground wire. As such, the attaching operation is tiresome.
- Furthermore, when the ground wire is attached on the far side, the ground wire tends to overlap the yarn path in the yarn threading, and the ground wire may interfere with the yarns. In this connection, with the present invention, the attachment of the ground wire to the frame can be easily done and interference of the ground wire to the yarns can be restrained.
- According to an aspect which is not part of the invention, a yarn threading assisting tool for threading yarns spun out from a spinning apparatus to yarn threading portions of a spun yarn take-up machine includes:
- a main body in which retaining grooves retaining the respective yarns are formed;
- a ground wire which is conductively attached to the main body; and
- an attaching portion which detachably attaches the ground wire to a conductive frame of the spun yarn take-up machine to be transmit electricity between the ground wire and the frame when the ground wire is attached to the frame.
- In the present example, the ground wire conductively attached to the main body is conductively attachable to the conductive frame of the spun yarn take-up machine.
- It is therefore possible to discharge the static electricity accumulated in the main body of the yarn threading assisting tool to the frame via the ground wire, when the operator performs the yarn threading to the yarn threading portion by using the yarn threading assisting tool. As a result, it is possible to prevent the operator from receiving an electric shock when performing the yarn threading.
- According to an aspect which is not part of the invention, the yarn threading assisting tool for a spun yarn take-up machine of the twelfth aspect further includes a winding mechanism which is capable of winding the ground wire.
- According to the present example, because the ground wire is wound by the winding mechanism when the yarn threading is not performed, the portability of the yarn threading assisting tool is improved.
-
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FIG. 1 is a schematic diagram of a facility in which a spun yarn take-up machine of First Embodiment of the present invention is provided. -
FIG. 2 is a side view of the spun yarn take-up machine shown inFIG. 1 . -
FIG. 3 shows fulcrum guides located at a yarn threading position. -
FIG. 4 is a perspective view of the yarn threading assisting tool shown inFIG. 1 . -
FIG. 5 shows an operation to thread yarns into retaining grooves of the yarn threading assisting tool. -
FIG. 6 shows yarn threading performed by using the yarn threading assisting tool. -
FIG. 7(a) and FIG. 7(b) show a yarn threading assisting tool of a second embodiment.FIG. 7(a) relates to a state in which a ground wire is wound, whereasFIG. 7(b) relates to a state in which the ground wire is drawn. -
FIG. 8 shows a frame of a spun yarn take-up apparatus of a first modification of the first embodiment. -
FIG. 9(a) and FIG. 9(b) show part of a ground wire of a spun yarn take-up apparatus of a second modification of the first embodiment. A ring-shaped member is in a closed state inFIG. 9(a) , whereas the ring-shaped member is in an open state inFIG. 9(b) . - The following will describe a first embodiment of the present invention with reference to figures.
-
FIG. 1 is a schematic diagram of a facility in which a spun yarn take-upmachine 1 of the present embodiment is provided. As shown inFIG. 1 , the spun yarn take-upmachine 1 is configured to take-upyarns 10, made of polyester, nylon, etc., spun out from aspinning apparatus 2. by a take-upunit 4 provided below thespinning apparatus 2, and then to wind the yarns by ayarn winding apparatus 5 provided below the take-upunit 4. Hereinafter, the leftward direction inFIG. 1 will be referred to as "left", the rightward direction inFIG. 1 will be referred to as "right", the direction toward the viewer ofFIG. 1 will be referred to as "front", and the direction away from the viewer ofFIG. 1 will be referred to as "rear". - As shown in
FIG. 1 , the take-upunit 4 includes members such as ayarn guide 20, ayarn feed roller 16, threefirst heating rollers second heating rollers yarn feed rollers 17 to 19, which are provided in order along the yarn running direction. - The
yarn guide 20 is provided below thespinning apparatus 2. As shown inFIG. 2 , theyarn guide 20 bends theyarns 10 spun out from thespinning apparatus 2 and guides theyarns 10 to theyarn feed roller 16. - The
yarn feed roller 16 is disposed so that its axis is parallel to the front-rear direction. Onto theyarn feed roller 16, theyarns 10 guided by theyarn guide 20 are wound. Theyarns 10 wound onto theyarn feed roller 16 are sent to athermal insulation box 26 through aslit 26a, by theyarn feed roller 16. - As shown in
FIG. 1 , the threefirst heating rollers second heating rollers thermal insulation box 26. Each of thefirst heating rollers second heating rollers thermal insulation box 26, a door (not illustrated) is attached to be openable and closable and to cover the front end surfaces of thefirst heating rollers second heating rollers - Each of the
first heating rollers second heating rollers first heating rollers second heating rollers thermal insulation box 26 which is made of a heat insulating material. The surface temperatures of thesecond heating rollers first heating rollers - Each of the
first heating rollers second heating rollers second heating rollers first heating rollers yarns 10 sent to thethermal insulation box 26 are drawn between thefirst heating rollers second heating rollers yarns 10 having been drawn are heated by thesecond heating rollers - By the three
first heating rollers second heating rollers yarns 10 having been heated and drawn are sent out toward ayarn feed roller 17 which is provided outside thethermal insulation box 26, via aslit 26b. Theyarn feed roller 17 is disposed so that its axis is parallel to the front-rear direction. Theyarns 10 having been sent out from thethermal insulation box 26 are wound onto theyarn feed roller 17 and are then sent toyarn feed rollers yarn feed roller 17. - Below the
spinning apparatus 2, theyarn feed rollers yarns 10 having been sent out from theyarn feed roller 17 are wound onto theyarn feed roller 18 and theyarn feed roller 19 in this order, and are then sent to theyarn winding apparatus 5. - As shown in
FIG. 2 , the twoyarn feed rollers member 27 which extends obliquely upward and rearward from a location above the front end portion of theyarn winding apparatus 5. Theyarn feed roller 18 is attached to the front end portion of the supportingmember 27. Theyarn feed roller 19 is attached to be movable relative to the supportingmember 27, along the length of the supportingmember 27. Theyarn feed roller 19 is moved, by an elevation motor (not illustrated), between a "front position" indicated by two-dot chain lines inFIG. 2 and a "rear position" indicated by solid lines in the figure. As described later, the front position of theyarn feed roller 19 is a position for yarn threading, whereas the rear position is a position for yarn winding by theyarn winding apparatus 5. - Yarn guides 21 to 24 are provided immediately upstream of the
yarn feed rollers 16 to 19 in the yarn feeding direction, respectively. Because theyarns 10 are threaded to these yarn guides 21 to 24, theyarns 10 are separated from one another at predetermined intervals in the arrangement direction of theyarns 10. - As shown in
FIG. 1 , theyarn winding apparatus 5 includes two windingunits 50. The two windingunits 50 are lined up in the left-right direction and are provided to sandwich a yarn path of theyarns 10 which are sent from theyarn feed roller 19 above. The two windingunits 50 are provided to be symmetrical in the left-right direction. Theyarns 10 spun out from thespinning apparatus 2 are sent to the two windingunits 50 in a separated manner. For example, when 24yarns 10 are sent from thespinning apparatus 2, a half of them, i.e., 12 yarns are wound by theleft winding unit 50, whereas the remaining half of the yarns, i.e., 12 yarns are wound by theright winding unit 50. - Each winding
unit 50 includes members such as aframe 15, a disc-shapedturret 6 rotatably attached to theframe 15, two bobbin holders 7 to which bobbins B are attached along the axial direction of the bobbin holders, a supportingmember 12 extending in the front-rear direction to be parallel to the bobbin holder 7, fulcrum guides 13 to which therespective yarns 10 are threaded,
traverse guides 8 by which therespective yarns 10 wound onto bobbins B are traversed, and acontact roller 9 making contact with the bobbins B attached to the bobbin holder 7. - The two bobbin holders 7 are rotatably supported at rear end portions by the
turret 6 so that the axis of each bobbin holder 7 is parallel to the front-rear direction. Each of the two bobbin holders 7 is rotationally driven by a motor (not illustrated). As each bobbin holder 7 rotates, the bobbins B attached to the bobbin holder 7 rotate together with the bobbin holder 7. As theturret 6 rotates, the positions of the two bobbin holders 7 are switched between a winding position (upper position inFIG. 1 andFIG. 2 ) and a retracted position (lower position inFIG. 1 andFIG. 2 ). - Above the bobbin holder 7,
- fulcrum guides 13 attached to an upper portion of the supporting
member 12 via aguide member 11 and - traverse guides 8 attached to the supporting
member 12 are provided to correspond to the respective bobbins B. A half of theyarns 10 sent from theyarn feed roller 19 are threaded to the respective fulcrum guides 13. - Each fulcrum guide 13 functions as a fulcrum of traversal of the
yarn 10 by thetraverse guide 8. - The fulcrum guides 13 are movably attached to the
guide member 11. Theguide member 11 is disposed so that its length is parallel to the axial direction (front-rear direction) of the bobbin holder 7. The fulcrum guides 13 attached to theguide member 11 are aligned in a line in the front-rear direction. The fulcrum guides 13 are arranged to be movable between a fulcrum position shown inFIG. 2 where the fulcrum guides 13 are provided directly above the respective bobbins B and function as fulcrums of traversal and a yarn threading position shown inFIG. 3 where all fulcrum guides 13 are gathered to a front end portion of theguide member 11 and neighboring fulcrum guides 13 are close to each other. - The
yarns 10 threaded to the respective fulcrum guides 13 are wound onto bobbins B attached to the bobbin holder 7 at the winding position, respectively, while being traversed about the fulcrum guides 13 in the axial direction of the bobbins B by the traverse guides 8. As a result, packages P are formed around the bobbins B. When the yarns are wound, as thecontact roller 9 in contact with the outer circumferential surface of each package P rotates while applying a predetermined contact pressure to each package P, the shape of the package P is adjusted. - In the facility shown in
FIG. 1 , a plurality of spun yarn take-upmachines 1 are aligned in the left-right direction. In the facility shown inFIG. 1 , furthermore, frames 91 and 92 are provided to support members such as thethermal insulation box 26 and theyarn feed rollers machine 1. Theframe 91 extends in the up-down direction and is provided between neighboring spun yarn take-upmachines 1. - An upper end portion of the
frame 91 is substantially as high as an upper end portion of thethermal insulation box 26. Theframe 92 is provided above theframe 91 and extends along the left-right direction across plural spun yarn take-upmachines 1. The height from the floor surface F on which theyarn winding apparatus 5 is placed to theframe 92 is about 2.8 meters. Theframe 92 is located above the components (yarn guides 20 to 24, theyarn feed rollers 16 to 19, thefirst heating rollers second heating rollers unit 4. Theframe 92 is made of a material which is conductive and ferromagnetic, such as iron. Theframe 92 is grounded. Furthermore, as shown inFIG. 2 , a front surface of theframe 92 is located before the fulcrum guides 13. In other words, in the direction in which the fulcrum guides 13 are lined up, the front surface of theframe 92 is closer to a space where an operator (seeFIG. 1 ) performs after-mentioned yarn threading operation than the fulcrum guides 13. - As shown in
FIG. 2 , theframe 92 is provided substantially directly below thespinning apparatus 2. Theyarns 10 spun out from thespinning apparatus 2 pass in front of theframe 92 and reach theyarn guide 20, are bended at theyarn guide 20, and are then sent to theyarn feed roller 16. - The
yarns 10 are threaded by the operator to the yarn guides 20 to 24 and the fulcrum guides 13 of the above-mentioned spun yarn take-upmachine 1, by using a yarnthreading assisting tool 60 shown inFIG. 4 andFIG. 5 . The yarnthreading assisting tool 60 is a flat plate member having a plurality of retaininggrooves 61 and made of stainless steel. The retaininggrooves 61 retain therespective yarns 10, and each of the grooves is a slit cut off from the edge. Therespective retaining grooves 61 are arranged radially in a fan-like shape widen from the open end side (thread inlet side) of the slit toward the closed end side. Each retaininggroove 61 linearly extends from the open end side toward the closed end side. For this reason, an inclination angle between thecentral retaining groove 61 and another retaininggroove 61 increases as the another retaininggroove 61 gets away from the central one. Furthermore, the retaininggrooves 61 are arranged so that the distance W1 between neighboring retaininggrooves 61 on the open end side is shorter than the distance W2 between the neighboring retaininggrooves 61 on the closed end side. - The yarn
threading assisting tool 60 has agrip 62 which extends along the direction in which the retaininggrooves 61 are aligned. Ahole 63 is formed at an end portion of thegrip 62 on the opposite side of the retaininggrooves 61. As shown inFIG. 5 , on yarn threading, ahook member 72 fixed to an after-mentionedground wire 70 is hooked into thehole 63. - When the operator performs the yarn threading by using the above-mentioned yarn
threading assisting tool 60, the operation is performed through the yarnthreading assisting tool 60 with theground wire 70 being attached, as shown inFIG. 1 . Aconductive magnet 71 is fixed to one end portion of theground wire 70. Themagnet 71 is magnetically attached to the front surface of the frame 92 (seeFIG. 1 ). In other words, theground wire 70 is conductively attached to theframe 92 by themagnet 71. - The
hook member 72 shown inFIG. 5 is attached to the other end portion of theground wire 70, which is opposite to the one end portion to which themagnet 71 is fixed. Thehook member 72 is made of a conductive material. Thehook member 72 can be hooked into thehole 63 of the yarnthreading assisting tool 60. By thehook member 72, theground wire 70 can be conductively and detachably attached to the yarnthreading assisting tool 60. - The
hook member 72 is intrinsically made of a magnet in itself, or a magnet (not illustrated) is attached extrinsically. When the operator performs the yarn threading, thehook member 72 is hooked into thehole 63 of the yarnthreading assisting tool 60 as shown inFIG. 5 . When the yarn threading is not performed, thehook member 72 is detached from the yarnthreading assisting tool 60 and is magnetically fixed to theframe 92. At this stage, thewhole ground wire 70 is attached to theframe 92 as indicated by a one-dot chain line inFIG. 1 . To be more specific, as shown inFIG. 1 , theground wire 70 is attached to a location between two groups of theyarns 10 which are spun out from the spinningapparatuses 2 of two neighboring spun yarn take-upmachines 1 and pass in front of theframe 92. - The
ground wire 70 of the present embodiment has a spring property (elasticity). Because theground wire 70 has a spring property, theground wire 70 is shortened and the entirety of the wire is attached to theframe 92 when the yarn threading is not performed, with the result that a space for attaching theground wire 70 is downsized. Theground wire 70 is therefore attached to a location where the wire does not interfere with theyarns 10 passing in front of theframe 92. Furthermore, because theground wire 70 can be elongated when the yarn threading is performed, the accessible range is wide. - Further referring to
FIG. 6 , the following will describe a process executed when yarns are threaded to the spun yarn take-upmachine 1. The yarn threading is performed in a state in which theyarn feed roller 19 is at the front position (indicated by two-dot chain lines inFIG. 2 ) and the fulcrum guides 13 are at the yarn threading position (which is shown inFIG. 3 ). The operator performs the yarn threading from the front side of the spun yarn take-upmachine 1. When the yarn threading is not performed, thewhole ground wire 70 is attached to theframe 92 as themagnet 71 and thehook member 72 are attached to theframe 92, as indicated by one-dot chain lines inFIG. 1 . The operator performing the yarn threading detaches thehook member 72 of theground wire 70 from theframe 92 and hooks the detached member into thehole 63 of the yarnthreading assisting tool 60, as shown inFIG. 5 . When hooking or removing thehook member 72 into or from theframe 92, the operator works on a step which is not illustrated. - To begin with, the operator performs the yarn threading to the
yarn guide 20, theyarn guide 21, theyarn feed roller 16, thefirst heating rollers second heating rollers yarn guide 22, theyarn feed roller 17, theyarn guide 23, theyarn feed roller 18, theyarn guide 24, and theyarn feed roller 19, while sucking theyarns 10 spun out from thespinning apparatus 2 by a suction gun (not illustrated). - Then the operator performs the yarn threading to the fulcrum guides 13. Subsequently, at a location between the
yarn feed roller 19 and the suction gun (not illustrated), the operator combs the yarnthreading assisting tool 60 in theyarns 10 as shown inFIG. 5 . As a result, theyarns 10 threaded into the respective retaininggrooves 61 are held by the retaininggrooves 61 in a distributed manner. - Thereafter, as shown in
FIG. 6 , the yarns are threaded to the respective fulcrum guides 13 at the yarn threading position, as the yarnthreading assisting tool 60 retaining theyarns 10 is operated. The operator holds the yarnthreading assisting tool 60 and moves it so that therespective yarns 10 retained by the retaininggrooves 61 are moved to theleading end portions 13a of the fulcrum guides 13corresponding to therespective yarns 10. In other words, the yarnthreading assisting tool 60 is moved in a direction (obliquely leftward and forward as indicated by the arrow in the figure) which intersects with the front-rear direction which is identical with the arrangement direction of the fulcrum guides 13, on a horizontal plane. As a result, theyarns 10 are threaded to the respective fulcrum guides 13 while running along tracks indicated by two-dot chain lines in the figure. Theyarns 10 are inserted into the fulcrum guides 13 from one side. The position of the yarnthreading assisting tool 60 before the yarn threading is indicated by two-dot chain lines. - After the completion of the yarn threading to the fulcrum guides 13, the
yarn feed roller 19 is moved from the front position to the rear position. Subsequently, the fulcrum guides 13 are moved from the yarn threading position to the fulcrum position. Then winding starts so that theyarns 10 are wound by bobbins B provided below. - As described above, the spun yarn take-up
machine 1 of the first embodiment includes a plurality of yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24) to whichyarns 10 spun out from thespinning apparatus 2 are threaded, and threads the yarns to the yarn threading portions by using the yarnthreading assisting tool 60 which is able to retain theyarns 10. The spun yarn take-upmachine 1 includes theconductive frame 92, theground wire 70, themagnet 71 which conductively attaches theground wire 70 to theframe 92, and thehook member 72 which conductively attaches theground wire 70 to the yarnthreading assisting tool 60. It is therefore possible to conductively attach theground wire 70 to theconductive frame 92 and to conductively attach theground wire 70 to the yarnthreading assisting tool 60. On this account, it is possible to discharge the static electricity accumulated in the yarnthreading assisting tool 60 to theframe 92 via theground wire 70, when the operator performs the yarn threading to the yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24) by using the yarnthreading assisting tool 60. As a result, it is possible to prevent the operator from receiving an electric shock when performing the yarn threading. - In addition to the above, in the first embodiment, by the
magnet 71, theground wire 70 is attached to theframe 92 which is above the yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24). In other words, the attaching position of theground wire 70 to theframe 92 by themagnet 71 is above the yarn threading portions. When the attaching position of theground wire 70 is low, theground wire 70 obstructs the yarn threading by the operator and deteriorates the workability. In the first embodiment, because the attaching position of theground wire 70 is above the yarn threading portions, the deterioration of the workability on account of theground wire 70 is restrained. - In addition to the above, in the first embodiment, by the
magnet 71, theground wire 70 is attached to theframe 92 which is above the take-upunit 4. In other words, the attaching position of theground wire 70 to theframe 92 by themagnet 71 is above the take-upunit 4. Because the attaching position of theground wire 70 is above the take-upunit 4, theground wire 70 is less likely to interfere with the rollers (yarn feed rollers 16 to 19) of the take-upunit 4. It is therefore possible to restrain theground wire 70 from being caught by a roller. - In the first embodiment, yarns are threaded by using the yarn
threading assisting tool 60 to the fulcrum guides 13 which are provided below the take-upunit 4 and to which theyarns 10 sent from the take-upunit 4 to theyarn winding apparatus 5 are threaded. In the present embodiment, electric charge is accumulated in theyarns 10 on account of friction between the rollers (yarn feed rollers 16 to 19,first heating rollers second heating rollers unit 4 and theyarns 10. On this account, the amount of the electric charge of the yarnthreading assisting tool 60 is large when theyarns 10 sent from the take-upunit 4 to theyarn winding apparatus 5 are threaded to the yarn threading portions. The present invention is therefore effectively applied to discharge the static electricity accumulated in the yarnthreading assisting tool 60 to theframe 92 via theground wire 70. - In the first embodiment, the fulcrum guides 13 are aligned in a line in the front-rear direction. When yarn threading is performed to the fulcrum guides 13 aligned in a line in the front-rear direction along the horizontal plane, the yarn threading is performed while the yarn
threading assisting tool 60 is moved along one direction which intersects with the front-rear direction in the horizontal plane. As the yarnthreading assisting tool 60 is moved in the one direction in the horizontal plane, the positional relationship between the attaching position of theground wire 70 to theframe 92 and the yarnthreading assisting tool 60 is changed. On this account, theground wire 70 may be warped depending on the positional relationship between the attaching position of theground wire 70 to theframe 92 and the yarnthreading assisting tool 60. In the present embodiment, the attaching position of theground wire 70 to theframe 92 is above the take-upunit 4 and the fulcrum guides 13 are provided below the take-upunit 4, and the distance between the attaching position of theground wire 70 to theframe 92 and the fulcrum guides 13 is relatively long. On this account, the warpage of theground wire 70 is relatively small on the yarn threading operation, and theground wire 70 is less likely to be caught by a roller of the take-upunit 4 or the like. As such, the present invention is effectively employed. - In the first embodiment, the
frame 92 is ferromagnetic and theconductive magnet 71 is fixed to theground wire 70. Theground wire 70 is conductively attached to theframe 92 by themagnet 71. It is therefore easy to conductively attach theground wire 70 to theframe 92. - In addition to the above, in the first embodiment, the
ground wire 70 can be detachably attached to the yarnthreading assisting tool 60. It is therefore possible to detach theground wire 70 from the yarnthreading assisting tool 60 when the yarn threading is not performed. The operator who performs the yarn threading is able to carry the yarnthreading assisting tool 60. Furthermore, it is possible to use one yarnthreading assisting tool 60 for plural spun yarn take-upmachines 1. - In the first embodiment, the
hook member 72 which can be hooked into thehole 63 of the yarnthreading assisting tool 60 is fixed to theground wire 70. It is therefore easy to detachably attach theground wire 70 to the yarnthreading assisting tool 60. - In the first embodiment, the
magnet 71 is fixed to one end portion of theground wire 70 in order to attach theground wire 70 to theframe 92. Thehook member 72 is fixed to the other end portion of theground wire 70, which is opposite to the one end portion to which themagnet 71 is fixed. Thehook member 72 is intrinsically made of a magnet, or a magnet is attached extrinsically. It is therefore possible to magnetically attach thehook member 72 to theframe 92 in a detachable manner. The entirety of theground wire 70 can therefore be attached to theframe 92 when the yarn threading is not performed. It is possible to restrain theground wire 70 from hanging down from theframe 92 and making contact with, for example, theyarns 10 and the rollers of the take-upunit 4, when the yarn threading is not performed. - The following will describe a second embodiment of the present invention with reference to
FIG. 7(a) and FIG. 7(b) . Each ofFIG. 7(a) and FIG. 7(b) shows a yarn threading assisting tool of the second embodiment of the present invention. While in the embodiment above-mentioned the spun yarn take-upmachine 1 includes theground wire 70, in the present embodiment a yarnthreading assisting tool 160 includes aground wire 170. In the descriptions below, members identical with those in the first embodiment will be denoted by the same reference numerals and the explanations thereof may not be repeated. - As shown in
FIG. 7(a) and FIG. 7(b) , the yarnthreading assisting tool 160 of the present embodiment includes a plate-shapedmain body 165 in which retaininggrooves 161 and agrip 162 are formed, theground wire 170 conductively attached to themain body 165, a windingmechanism 175 configured to wind theground wire 170 extending from themain body 165, and amagnet 171 which is pasted on acasing 175a of the windingmechanism 175. Themagnet 171 is conductive, and electricity can be transmitted between themagnet 171 and theground wire 170. - The winding
mechanism 175 is not detailed because it is a known mechanism disclosed in, for example,Japanese Unexamined Patent Publication No. 2005-345107 - The winding
mechanism 175 is arranged such that, when an operation button (not illustrated) is not operated, theground wire 170 drawn out from thecasing 175a by an operator is not wound back even if the operator removes a hand from theground wire 170. When the operation button (not illustrated) is operated, theground wire 170 having been drawn out is wound back to thecasing 175a. - When yarn threading is not performed, the yarn
threading assisting tool 160 is arranged such that theground wire 170 is wound by the windingmechanism 175, and the yarnthreading assisting tool 160 is held by the operator in this state. When yarn threading is not performed, the yarnthreading assisting tool 160 may be stored in the vicinity of the spun yarn take-upmachine 1. When performing the yarn threading, the operator draws theground wire 170 out from thecasing 175a of the windingmechanism 175 of the yarnthreading assisting tool 160 and magnetically fixes themagnet 171 to theframe 92. As a result, electricity becomes transmittable between theground wire 170 and theframe 92. - In the second embodiment, being similar to the first embodiment, the
ground wire 170 conductively attached to themain body 165 can be conductively attached to theconductive frame 92 of the spun yarn take-upmachine 1. It is therefore possible to discharge the static electricity accumulated in themain body 165 of the yarnthreading assisting tool 160 to theframe 92 via theground wire 170, when the operator performs the yarn threading to the fulcrum guides 13 by using the yarnthreading assisting tool 160. As a result, it is possible to prevent the operator from receiving an electric shock when performing the yarn threading. - In the second embodiment, the winding
mechanism 175 capable of winding theground wire 170 is provided. Because theground wire 170 is wound by the windingmechanism 175 when the yarn threading is not performed, the portability of the yarnthreading assisting tool 160 is improved. - The embodiments of the present invention are described hereinabove. However, the specific structure of the present invention shall not be interpreted as to be limited to the above-mentioned embodiments. The scope of the present invention is defined not by the above embodiments but by claims set forth below, and shall encompass every modification within the scope of the claims.
- For example, while in the first embodiment above the
ground wire 70 is attached to theframe 92 by themagnet 71, theground wire 70 may be attached to theframe 92 by another means. For example, theground wire 70 may be fixed by using a screw. While in the first embodiment above thehook member 72 by which theground wire 70 is detachably attached to the yarnthreading assisting tool 60 is magnetically attached to theframe 92 when the yarn threading is not performed, thehook member 72 may be attached to theframe 92 by using another means. For example, a ring-shaped member may be provided on theframe 92 to hook thehook member 72. - The following will describe a first modification of the first embodiment with reference to
FIG. 8 . In this modification,hook members ground wire 270, respectively. Thehook member 271 is hooked into a ring-shapedmember 274a of theframe 92. Thehook member 272 is hooked into a ring-shapedmember 275a of theframe 92 when the yarn threading is not performed. In other words, as indicated by a one-dot chain line inFIG. 8 , the entirety of theground wire 270 is attached to theframe 92 when the yarn threading is not performed. When the yarn threading is performed, thehook member 272 is detached from the ring-shapedmember 275a and is hooked into thehole 63 of the yarnthreading assisting tool 60 in the same manner as in the first embodiment (seeFIG. 5 ). - The ring-shaped
members hook members hook member 271 is hooked into the ring-shapedmember 274a, theground wire 270 is conductively attached to theframe 92. Thehook member 272 may be magnetically attached to theframe 92 in the same manner as in the first embodiment. - The first and second embodiments above and the first modification of the first embodiment describe that the ground wire 70 (170, 270) is attached to the
frame 92 which is above the take-upunit 4 and the yarn threading portions (fulcrum guides 13 and yarn guides 20 to 24) to which yarns are threaded by the yarn threading assisting tool 60 (160) - While the first and second embodiments above and the first modification of the first embodiment describe that the fulcrum guides 13 are aligned in a line in the front-rear direction, the arrangement direction of the fulcrum guides 13 is not limited to this. For example, the fulcrum guides may be aligned in a line in a direction intersecting with the front-rear direction, or may not be aligned in a line.
- While in the first embodiment above and its first modification the ground wire 70 (270) is detachably attached to the yarn
threading assisting tool 60 by the hook member 72 (272), the disclosure is not limited to this arrangement. For example, in a second modification of the first embodiment shown inFIG. 9(a) and FIG. 9(b) , theground wire 70 is detachably attached to the yarnthreading assisting tool 60 by an openable ring-shapedmember 372 instead of the hook member 72 (272). The ring-shapedmember 372 is formed of two circular-arc-shapedmembers members shaft 372c. The ring-shapedmember 372 is switched between a closed state in which a ring shape is formed as shown inFIG. 9(a) and an open state in which the ring is partially cut out as shown inFIG. 9(b) , as the circular-arc-shapedmembers shaft 372c. When the ground wire is attached to or detached from the yarnthreading assisting tool 60, the ring-shapedmember 372 is opened. After being attached to the yarnthreading assisting tool 60, the ring-shapedmember 372 is closed. This prevents theground wire 70 from being detached from the yarnthreading assisting tool 60 during the yarn threading. The ring-shapedmember 372 may not be formed of the two circular-arc-shapedmembers threading assisting tool 60. - While in the first embodiment above and its first modification the entirety of the
ground wire 70 is attached to theframe 92 by attaching the hook member 72 (272) to theframe 92, the hook member 72 (272) may not be attachable to theframe 92. - In the second embodiment above, the
magnet 171 is pasted onto thecasing 175a of the windingmechanism 175, and theground wire 170 is attached to theframe 92 by magnetically fixing themagnet 171 to theframe 92. However, means for attaching theground wire 170 to theframe 92 is not limited to this. For example, theground wire 170 may be attached to theframe 92 in such a way that a hook member provided on thecasing 175a of the windingmechanism 175 is hooked into a ring-shaped member provided on theframe 92. - While in the embodiments above the yarns are threaded to the yarn guides 20 to 24 and the fulcrum guides 13 by using the yarn
threading assisting tool 60, the disclosure is not limited to this arrangement. The yarnthreading assisting tool 60 may be used to perform yarn threading to at least one of the yarn guides 20 to 24 and the fulcrum guides 13. - While in the embodiments above the
ground wire 70 has a spring property (elasticity), the disclosure is not limited to this arrangement. Theground wire 70 may not have a spring property (elasticity), on condition that theground wire 70 can be attached to a position where the wire does not interfere with theyarns 10 when the yarn threading is not performed and theground wire 70 is long enough for the yarn threading.
Claims (10)
- A spun yarn take-up machine (1) which includes a plurality of yarn threading portions (13) to which yarns (10) spun out from a spinning apparatus (2) are threaded,the yarns (10) being threaded to the yarn threading portions (13) by using a yarn threading assisting tool (60) capable of retaining the yarns (10),the spun yarn take-up machine (1) comprising:a conductive frame (92);a ground wire (70);a first attaching portion (71) by which the ground wire (70) is conductively attached to the frame (92); anda second attaching portion (72) by which the ground wire (70) is conductively attached to the yarn threading assisting tool (60);characterized in thatan attaching position of the ground wire (70) to the frame (92) by the first attaching portion (71) is above the yarn threading portions (13).
- The spun yarn take-up machine (1) according to claim 1, further comprisinga take-up unit (4) whichis provided below the spinning apparatus (2) andincludes one or more rollers (16, 17, 18, 19) for taking up the yarns (10) spun out from the spinning apparatus (2),an attaching position of the ground wire (70) to the frame (92) by the first attaching portion (71) being above the take-up unit (4).
- The spun yarn take-up machine (1) according to claim 2 further comprisinga yarn winding apparatus (5) whichis provided below the take-up unit (4) to wind the yarns (10) supplied from the take-up unit (4) onto respective bobbins (B),the yarn threading portions (13) being provided below the take-up unit (4) andthe yarns (10) supplied from the take-up unit (4) to the yarn winding apparatus (5) being threaded to the yarn threading portions (13).
- The spun yarn take-up machine (1) according to any one of claims 1 to 3, wherein,the frame (92) is ferromagnetic, andthe first attaching portion (71) is a conductive magnet (71) fixed to the ground wire (70).
- The spun yarn take-up machine (1) according to any one of claims 1 to 4, wherein,
the second attaching portion (72) detachably attaches the ground wire (70) to the yarn threading assisting tool (60). - The spun yarn take-up machine (1) according to any one of claims 1 to 5, wherein,
the second attaching portion (72) is a hook member (72) which is fixed to the ground wire (70) and is able to be hooked into a hole (63) formed in the yarn threading assisting tool (60). - The spun yarn take-up machine (1) according to claim 5, wherein,
the second attaching portion (72) is a ring-shaped member (372) which is fixed to the ground wire (70), is able to be engaged with a hole (63) formed in the yarn threading assisting tool (60), and is openable and closable. - The spun yarn take-up machine (1) according to claim 6 or 7, wherein,the first attaching portion (71) attaches one end portion of the ground wire (70) to the frame (92),the second attaching portion (72) is fixed to the other end portion of the ground wire (70), which is opposite to the one end portion, andan engaging member (275a) including an engaging portion capable of being engaged with the second attaching portion (72) is provided on the frame (92).
- The spun yarn take-up machine (1) according to claim 5, wherein,the first attaching portion (71) attaches one end portion of the ground wire (70) to the frame (92), anda retaining portion (72) is further provided to detachably attach the other end portion of the ground wire (70) opposite to the one end portion to the frame (92) so as to attach the entirety of the ground wire (70) to the frame (92).
- The spun yarn take-up machine (1) according to any one of claims 1 to 9, wherein,
the attaching position of the ground wire (70) to the frame (92) by the first attaching portion (71) is closer to a working space than the yarn threading portions (13), in a direction in which the yarn threading portions (13) are lined up.
Priority Applications (1)
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EP22203232.8A EP4144678B1 (en) | 2018-08-02 | 2019-07-01 | Spun yarn take-up machine |
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JP2018146023A JP7114395B2 (en) | 2018-08-02 | 2018-08-02 | Spinning take-up machine and spinning aid for spinning take-up machine |
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EP22203232.8A Division-Into EP4144678B1 (en) | 2018-08-02 | 2019-07-01 | Spun yarn take-up machine |
EP22203232.8A Division EP4144678B1 (en) | 2018-08-02 | 2019-07-01 | Spun yarn take-up machine |
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EP22203232.8A Active EP4144678B1 (en) | 2018-08-02 | 2019-07-01 | Spun yarn take-up machine |
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JP2023012096A (en) | 2021-07-13 | 2023-01-25 | Tmtマシナリー株式会社 | Entangling device and yarn winding machine |
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JP2005345107A (en) | 2004-05-31 | 2005-12-15 | Nippon Acp Kk | Electronic measure apparatus |
DE102011016786A1 (en) * | 2011-04-12 | 2012-10-18 | Oerlikon Textile Gmbh & Co. Kg | Auxiliary device for manually guiding running threads |
JP6393206B2 (en) * | 2014-02-05 | 2018-09-19 | Tmtマシナリー株式会社 | Yarn winding machine |
CN104828634B (en) | 2014-02-10 | 2019-04-30 | 日本Tmt机械株式会社 | Spinning drawing device |
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CN110791822A (en) | 2020-02-14 |
EP4144678B1 (en) | 2023-11-22 |
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