EP3006384A1 - Bobbin separating device, doffing cart, and yarn winding machine - Google Patents
Bobbin separating device, doffing cart, and yarn winding machine Download PDFInfo
- Publication number
- EP3006384A1 EP3006384A1 EP15186225.7A EP15186225A EP3006384A1 EP 3006384 A1 EP3006384 A1 EP 3006384A1 EP 15186225 A EP15186225 A EP 15186225A EP 3006384 A1 EP3006384 A1 EP 3006384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bobbin
- separating device
- contacting member
- target
- move
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000004804 winding Methods 0.000 title claims description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 description 11
- 238000003825 pressing Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000005304 joining Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000010042 air jet spinning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
- B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
- B65H67/0417—Arrangements for removing completed take-up packages or for loading an empty core for loading an empty core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
- B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/068—Supplying or transporting empty cores
-
- 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 generally relates to a bobbin separating device, a doffing cart, and a yarn winding machine.
- Yarn winding machines that include plural winding units and a doffing cart that is movable with respect to the winding units are known in the art.
- Each of the winding units forms a package by winding a yarn on a bobbin.
- the doffing cart moves to this winding unit, doffs the fully wound package, and supplies a new bobbin to the winding unit.
- the yarn winding machine further includes, for each winding unit, a bobbin stocker that stocks plural bobbins.
- the doffing cart includes a clamping device that can clamp a bobbin.
- the clamping device clamps, from among plural bobbins stocked in the bobbin stocker, the bobbin positioned at a discharge position, and supplies the clamped bobbin to the winding unit.
- a doffing cart is disclosed in, for example, Japanese Patent Application Laid-open No. 2013-63841 (Patent Document 1).
- the doffing cart disclosed in Patent Document 1 includes a bobbin separating device that separates the bobbins.
- the bobbin separating device separates the bobbin positioned at the discharge position from the other bobbins in the bobbin stocker so that the clamping device can easily clamp the bobbin positioned at the discharge position.
- Bobbins of different shapes may be used in different winding units of one yarn winding machine. There is a requirement for the bobbin separating device to appropriately separate the bobbin positioned at the discharge position from the other bobbins even if the shapes of the bobbins used in different winding units are different.
- a doffing cart includes the above bobbin separating device and a clamping device that clamps the target bobbin that is separated from the stock bobbin.
- a yarn winding machine includes the above doffing cart and plural winding units each of which winds a yarn on the bobbin.
- Each of the winding units includes a traversing device that adjusts a traverse width of the yarn being wound on the bobbin.
- an automatic winder (yarn winding machine) 1 includes plural winding units 2, a bobbin supplying device 3, a doffing cart 6, a transporting device 12, and a control device 8.
- the plural winding units 2 are arranged side by side.
- the bobbin supplying device 3 supplies a yarn supplying bobbin B to each winding unit 2.
- the doffing cart 6 performs a doffing operation of a package P at each winding unit 2.
- the transporting device 12 transports the package P doffed by the doffing cart 6.
- the control device 8 controls various devices, such as the winding units 2 and the doffing cart 6, in the automatic winder 1.
- the control device 8 manages the types of a bobbin 9 used for winding a yarn Y in each winding unit 2.
- the winding unit 2 winds on the bobbin 9 the yarn Y that is unwound from the yarn supplying bobbin B to form the package P.
- the winding unit 2 includes a cradle arm 21, a drum 22, and a traversing device 29.
- the cradle arm 21 rotatably supports the bobbin 9 at a position above the yarn supplying bobbin B.
- the drum 22 is rotatable while being in contact with a peripheral surface of the bobbin 9 or a peripheral surface of the package P.
- the package P is driven to rotate by the rotation of the drum 22. Accordingly, the yarn Y is wound into the package.
- the bobbin 9 is driven to rotate by the rotation of the drum 22. Accordingly, the yarn Y is wound on the bobbin 9.
- the drum 22 can be driven to rotate by the rotation of the bobbin 9 (package P).
- the cradle arm 21 is movable between a winding position (position indicated by a solid line in FIG. 2 ) and a removal position (position indicated by a chain double-dashed line in FIG. 2 ).
- the winding position is a position at which the package P (bobbin 9 at the start of winding) makes contact with the drum 22.
- the removal position is a position at which the package P can be removed by the doffing cart 6.
- the cradle arm 21 has a pair of bobbin holders 23 (see FIG. 4 ) that hold the bobbin 9. Out of the pair of bobbin holders 23, one bobbin holder 23 is arranged so as to be movable in an axial direction of the drum 22. With this configuration, the cradle arm 21 can hold the bobbin 9 between the bobbin holders 23 or release the bobbin 9 held by the bobbin holders 23.
- the drum 22 is rotated by a driving motor 25.
- the driving motor 25 is controlled by a unit controller 24.
- the unit controller 24 can be arranged for a predetermined number of winding units 2 or a separate unit controller 24 can be arranged for each winding unit 2.
- the unit controller 24 is communicably connected to the control device 8.
- the unit controller 24 can obtain from the control device 8 conditions (information such as a length of the yarn Y wound on the package P or a diameter of the package P) which when satisfied mean that the package P is fully wound.
- the unit controller 24 obtains from the control device 8 the type of the bobbin 9 that is to be used by the winding unit 2 during winding of the yarn Y.
- the traversing device 29 is arranged at a position further upstream than the drum 22 in a movement direction of the yarn Y.
- the traversing device 29 can adjust a traversing width of the yarn Y when the yarn is wound on the bobbin 9 or the package P.
- the traversing device 29 is an arm-type traversing device.
- the traversing device 29 includes a traversing arm 29a and a driving motor 29b.
- the base end of the traversing arm 29a is coupled to the driving motor 29b.
- the driving motor 29b causes the distal end of the traversing arm 29a to swing while the yarn Y has been guided to the distal end of the traversing arm 29a. With this action, the traversing device 29 traverses the yarn Y being wound on the bobbin 9 or the package P.
- the traversing width can be adjusted by adjusting a width by which the distal end of the traversing arm 29a is swung by the driving motor 29b.
- the width by which the driving motor 29b causes the distal end of the traversing arm 29a to swing is controlled by the unit controller 24.
- the unit controller 24 controls the width by which the distal end of the traversing arm 29a is to be swung in accordance with, for example, the type (for example, the length) of the bobbin 9.
- the control of the traversing device 29 can be performed by a device other than the unit controller 24.
- a traverse controller dedicated to controlling the traversing device 29 can be used for controlling the traversing device 29.
- the winding unit 2 includes a yarn joining device 26, a yarn monitoring device 27, a not shown lower yarn catching section, and a not shown upper yarn catching section.
- the yarn joining device 26 and the yarn monitoring device 27 are arranged at positions further upstream than the traversing device 29 in the movement direction of the yarn Y.
- the yarn monitoring device 27 monitors information pertaining to the running yarn Y, and detects presence/absence of a yarn defect based on the monitored information. Upon detecting a yarn defect, the yarn monitoring device 27 cuts the yarn Y with a yarn cutting section 27a.
- the lower yarn catching section sucks and catches the end of the cut yarn Y from the yarn supplying bobbin B and guides it to the yarn joining device 26.
- the upper yarn catching section sucks and catches the end of the cut yarn Y from the package P and guides it to the yarn joining device 26.
- the yarn joining device 26 joins together the yarns Y guided by the upper yarn catching section and the lower yarn catching section.
- each winding unit 2 includes a bobbin stocker 65 that can stock plural bobbins 9.
- the bobbin stocker 65 is fixed to a machine frame 61 at a position above the winding unit 2.
- the bobbin stocker 65 includes a loading member 65a and a pair of supporting pieces 65c. Plural bobbins 9 can be loaded on the loading member 65a.
- FIG. 3 shows a situation where only one bobbin 9 is loaded on the bobbin stocker 65.
- the loading member 65a is tilted with respect to the horizontal direction such that the end thereof toward the doffing cart 6 side is situated at a lower level than the other end thereof.
- the doffing cart 6 side is the side where the doffing cart 6 travels.
- the doffing cart 6 side with respect to the bobbin stocker 65 shall be called the "front side” and the bobbin stocker 65 side with respect to the doffing cart 6 shall be called the "back side".
- a removal opening 65d is arranged on the front side of the loading member 65a.
- the removal opening 65d is arranged such that a bobbin 9 that is arranged closest to the doffing cart 6 side (front side) can be taken out in a downward direction.
- the pair of supporting pieces 65c is attached to the loading member 65a.
- the supporting pieces 65c extend inside the removal opening 65d.
- the supporting pieces 65c are pressed in an upward direction by not shown coil springs.
- the supporting pieces 65c support the bobbin 9 from the bottom so that the bobbin 9 loaded on the loading member 65a will not fall down through the removal opening 65d.
- the target bobbin 9A is a bobbin that is supported by the supporting pieces 65c.
- the position of the target bobbin 9A in the loading member 65a shall be called a target position.
- the bobbins 9 loaded on the loading member 65a are arranged with respect to the target position.
- All the bobbins 9 loaded on the loading member 65a except the target bobbin 9A shall be called stock bobbins 9B.
- the stock bobbins 9B are the bobbins 9 that are arranged with respect to the target position at positions further upstream than the target bobbin 9A in an arrangement direction.
- the arrangement direction of the bobbins 9 is a direction in which the bobbins 9 loaded on the loading member 65a move toward the target position (direction indicated by an arrow W in FIG. 2 ).
- the doffing cart 6 runs above the winding unit 2 along a rail 7 arranged on the machine frame 61 of the automatic winder 1.
- the doffing cart 6 stops at a predetermined position that is predetermined with respect to the winding unit 2 in which the package P has been fully wound and performs the doffing operation.
- the doffing cart 6 supplies a new bobbin 9 to the winding unit 2.
- the doffing cart 6 includes a yarn clamping device 62, an opener 63, a clamping device 66, and a bobbin separating device 100.
- the opener 63 opens/closes the cradle arm 21 during the doffing operation.
- the opener 63 includes an open lever 63b and an open hand 63c.
- the open lever 63b swings about a shaft 63a.
- the open hand 63c is attached to the distal end of the open lever 63b and makes contact with a cradle lever 21a when the open lever 63b is swung.
- the cradle arm 21 moves between the winding position and the removal position by the swinging of the open lever 63b with the open hand 63c making contact with the cradle arm 21.
- the clamping device 66 clamps the target bobbin 9A stocked in the bobbin stocker 65 and transports the clamped target bobbin 9A to the cradle arm 21.
- the clamping device 66 clamps the target bobbin 9A stocked in the bobbin stocker 65 and moves the target bobbin 9A downward.
- the clamping device 66 includes a clamping member 66a at the tip thereof and clamps the target bobbin 9A with the clamping member 66a. During this action, the clamping device 66 pushes the target bobbin 9A downward with a force that is stronger than the pressing force of the coil springs that press the supporting pieces 65c.
- the clamping device 66 places the bobbin 9A, which is taken out from the bobbin stocker 65 through the removal opening 65d, between the bobbin holders 23 of the cradle arm 21.
- the yarn clamping device 62 by extending, contracting, swinging, and the like, guides the yarn Y that is unwound from the yarn supplying bobbin B to the bobbin 9 that is newly set between the bobbin holders 23.
- the bobbin separating device 100 is arranged above the bobbin stocker 65 (see FIG. 2 ). When the clamping device 66 is about to clamp the target bobbin 9A, the bobbin separating device 100 separates the target bobbin 9A and the stock bobbins 9B. That is, the clamping device 66 clamps the target bobbin 9A that has been separated from the stock bobbins 9B.
- the bobbin separating device 100 includes, as shown in FIGS. 5 and 6 , a supporting member 101, a first member (contacting member, first contacting member) 102, a second member (contacting member, second contacting member) 103, and a driving mechanism 104.
- the supporting member 101 is swingably supported by a first shaft 105.
- the first shaft 105 is fixed to a housing 69 of the doffing cart 6.
- the first member 102 and the second member 103 are attached to a front end 101a of the supporting member 101.
- the distal end of the first member 102 and the distal end of the second member 103 extend downward.
- the first member 102 and the second member 103 are contactable with the stock bobbin 9B at mutually different positions in an axial direction of the stock bobbin 9B.
- one end of a spring 106 is attached to a back end 101b of the supporting member 101.
- the other end of the spring 106 is fixed to the housing 69.
- the back end 101b is pulled upward by the spring 106.
- the driving mechanism 104 causes the first member 102 to move with respect to the supporting member 101.
- the driving mechanism 104 includes an air cylinder that functions as an actuator.
- the driving mechanism 104 includes a main member 104a and a rod member 104b.
- the driving mechanism 104 causes the rod member 104b to move with respect to the main member 104a by using pressure of air supplied into the main member 104a from an air supply source 20. That is, the main member 104a and the rod member 104b constitute the air cylinder.
- the rod member 104b moves in a direction so as to protrude from the main member 104a by, for example, the pressure of air that is supplied into the main member 104a.
- the rod member 104b moves in the direction opposite to the direction in which the rod member 104b protrudes by the action of air pressure when, for example, the supply of air into the main member 104a is stopped.
- the rod member 104b of the driving mechanism 104 moves linearly between two predetermined positions in the protruding direction of the rod member 104b.
- the driving mechanism 104 can maintain the rod member 104b at the two predetermined positions.
- the driving mechanism 104 causes the first member 102 to move so as to change the length by which the first member 102 protrudes with respect to the supporting member 101.
- the air supply source 20 is arranged in the doffing cart 6 to supply air to the driving mechanism 104.
- a cart controller 50 arranged in the doffing cart 6 controls the air supply source 20 to supply or to stop the supply of air to the driving mechanism 104.
- an air supply source that is, for example, arranged alongside the winding units 2 and that supplies air to plural winding units 2 can be used as the air supply source 20.
- the cart controller 50 can control the supply of air or stoppage of supply of air from the air supply source 20 to the driving mechanism 104 by controlling a valve or the like. In this manner, the cart controller 50 controls the movement of the first member 102 by controlling the driving mechanism 104.
- the cart controller 50 can perform control of running of the doffing cart 6 based on instructions from the control device 8 and/or control of operations of each structural component of the doffing cart 6.
- the cart controller 50 physically includes, for example, a Central Processing Unit (CPU), a Read-only Memory (ROM), and a Random Access Memory (RAM).
- CPU Central Processing Unit
- ROM Read-only Memory
- RAM Random Access Memory
- the main member 104a of the driving mechanism 104 is fixed to the upper surface of the supporting member 101.
- a slit-shaped guide hole 101c is formed in the supporting member 101.
- the first member 102 makes contact with the lower surface of the supporting member 101. That is, the supporting member 101 is arranged between the first member 102 and the driving mechanism 104.
- the first member 102 and a coupling metal 104c are mutually coupled by a bolt 104d.
- the bolt 104d passes through the guide hole 101c of the supporting member 101.
- the guide hole 101c extends linearly along a movement direction of the rod member 104b of the driving mechanism 104. With this configuration, the first member 102 moves linearly accompanying the movement of the rod member 104b of the driving mechanism 104.
- a movement direction of the first member 102 is indicated by an arrow X1 in FIGS. 5 and 7 .
- the driving mechanism 104 causes the first member 102 to move in a separating direction from an axial line X2 of the first shaft 105 or an approaching direction toward the axial line X2. That is, the movement direction of the first member 102 (direction of the arrow X1) and the axial line X2 of the first shaft 105 are mutually orthogonal when viewed from a direction orthogonal to the movement direction of the first member 102 and the axial line X2.
- the tip of the rod member 104b moves linearly between the two predetermined positions.
- the first member 102 is coupled to the rod member 104b. That is, the driving mechanism 104 can cause the first member 102 to move linearly between two predetermined positions with respect to the supporting member 101. Moreover, the driving mechanism 104 can maintain the first member 102 at the two predetermined positions with respect to the supporting member 101. Out of the two predetermined positions with respect to the supporting member 101, the position at which the first member 102 protrudes more to the front side than at the other position shall be called a first position and the other position shall be called a second position. That is, the driving mechanism 104 causes the first member 102 to move linearly between the first position and the second position.
- the doffing cart 6 includes a regulating lever 71, a pressing lever 72, and a first link 68.
- a base end 71b of the regulating lever 71 is swingably supported by a second shaft 73.
- the second shaft 73 is fixed to the housing 69 of the doffing cart 6.
- the regulating lever 71 is mounted on the supporting member 101 of the bobbin separating device 100.
- the regulating lever 71 swings accompanying the swinging of the supporting member 101.
- a base end 72b of the pressing lever 72 is swingably supported by the second shaft 73.
- the pressing lever 72 is placed on the supporting member 101 of the bobbin separating device 100.
- the pressing lever 72 swings accompanying the swinging of the supporting member 101.
- a distal end 71a of the regulating lever 71 and a distal end 72a of the pressing lever 72 make contact with the lateral ends of the target bobbin 9A, and thereby perform positioning of the target bobbin 9A.
- the first link 68 is swingably supported by a swinging shaft 68c.
- a protrusion 68g is arranged in the first link 68 behind the swinging shaft 68c.
- One end of a spring 68f is attached to the protrusion 68g.
- the other end of the spring 68f is fixed to the housing 69 of the doffing cart 6.
- a back end 68b of the first link 68 is pulled upward by the spring 68f.
- the back end 68b of the first link 68 is pressed downward by a cam 67.
- the back end 101b of the bobbin separating device 100 is pressed downward by the back end 68b.
- the swinging of the supporting member 101 is stopped while the back end 68b is pressing down the back end 101b.
- the first member 102 and the second member 103 are located away the stock bobbin 9B.
- the position of the supporting member 101 in a stopped state by the pressing of the first link 68 shall be called a standby position.
- the cam 67 is caused to rotate by a driving member 67a.
- a cam follower 68e is arranged at the position at which the first link 68 and the cam 67 make contact.
- a front end 68a of the first link 68 is coupled to the clamping device 66 via a second link 68d.
- the first link 68 pulls the clamping member 66a of the clamping device 66 upward with the second link 68d while the back end 68b of the first link 68 is pressed down by the cam 67.
- FIG. 6 shows a state before the separation operation and the clamping operation are performed.
- the back end 68b is released from being urged by the cam 67 by the rotation of the cam 67. With this action, the back end 68b moves upward by a pulling force of the spring 68f and the back end 101b moves upward by a pulling force of the spring 106. That is, the supporting member 101 swings so as to move the back end 101b upward.
- the first member 102 and the second member 103 are inserted between the target bobbin 9A and the stock bobbin 9B. Thereafter, by further swinging of the supporting member 101 by the action of the pulling force of the spring 106, the bobbin separating device 100 causes the stock bobbin 9B to move back, as shown in FIG. 8 .
- the position of the supporting member 101 when the target bobbin 9A and the stock bobbin 9B are in a separated state by the action of the bobbin separating device 100 shall be called a separation position.
- the regulating lever 71 and the pressing lever 72 swing about the second shaft 73 by their own weights. This causes the distal end 71a and the distal end 72a, respectively, to move downward. With this action, the regulating lever 71 and the pressing lever 72 make contact with the lateral ends of the target bobbin 9A, and thereby perform positioning of the target bobbin 9A.
- the clamping member 66a swings so as to move downward by the downward swinging of the front end 68a of the first link 68, and thereby the clamping device 66 clamps the target bobbin 9A. Thereafter, the clamping device 66 swings further, with the target bobbin 9A clamped, and takes out the target bobbin 9A from the bobbin stocker 65 downward via the removal opening 65d and places the target bobbin 9A in the cradle arm 21 of the winding unit 2.
- the spring 106 attached to the back end 101b functions as a moving mechanism that causes the supporting member 101 to move from the standby position to the separation position.
- the back end 101b swings so as to move downward. That is, the first link 68 functions as a moving mechanism that causes the supporting member 101 to move from the separation position to the standby position.
- Movements of the first member 102 caused by the driving mechanism 104 are explained below.
- the bobbin separating device 100 separates the target bobbin 9A and the stock bobbin 9B
- the first member 102 and the second member 103 make contact with a downstream portion of the stock bobbin 9B in the arrangement direction (in the direction of the arrow W).
- the bobbin separating device 100 separates the target bobbin 9A and the stock bobbin 9B with the first member 102 and the second member 103 making contact with the downstream portion of the stock bobbin 9B in the arrangement direction. That is, the bobbin separating device 100 causes the stock bobbin 9B to move in a separating direction from the target bobbin 9A.
- the downstream portion of the stock bobbin 9B in the arrangement direction is the part of an outer peripheral surface of the stock bobbin 9B that is adjacent to the target bobbin 9A, the part being arranged next to the side of the target bobbin 9A.
- the bobbins 9 having different shapes may be in use in plural winding units 2 arranged in the automatic winder 1. Even when bobbins of different shapes are used, it is preferable that the first member 102 and the second member 103 are properly inserted between the target bobbin 9A and the stock bobbin 9B.
- FIG. 10 an example is presented in which there is a mixed presence of the winding units 2 that use cone-shaped bobbins 9 and the winding units 2 that use cylindrical bobbins.
- the cone-shaped bobbin 9 diameters at the lateral ends mutually differ.
- the diameters at both ends are mutually identical.
- the diameter of the large-diameter portion of the cone-shaped bobbin 9 and the diameter of the cylindrical bobbin 9 are substantially similar.
- the cone-shaped bobbin 9 is oriented such that, when the first member 102 and the second member 103 make contact with the bobbin 9, the small-diameter portion makes contact with the first member 102 and the large-diameter portion makes contact with the second member 103 (see FIG. 10 ).
- the cart controller 50 obtains from the unit controller 24 the information pertaining to the type of the bobbin 9 used in the winding unit 2 in which the doffing operation is to be performed.
- the cart controller 50 causes the first member 102 to move in accordance with the obtained type of the bobbin 9 (shape of the bobbin 9) in such a way that the first member 102 is inserted between the target bobbin 9A and the stock bobbin 9B when the supporting member 101 is moved to the separation position.
- the cart controller 50 causes the first member 102 to move to the first position in advance.
- the mounting position of the driving mechanism 104, the movement amount of the rod member 104b, and the like are set in advance such that the distal end of the first member 102 that is positioned at the first position is inserted between the target bobbin 9A and the stock bobbin 9B.
- the attached position of the second member 103 is adjusted (set) such that the second member 103 is inserted between the target bobbin 9A and the stock bobbin 9B.
- the cart controller 50 When separating the cylindrical bobbins 9, as shown in FIG. 11 , the cart controller 50 causes the first member 102 to move to the second position in advance.
- the mounting position of the driving mechanism 104, the movement amount of the rod member 104b, and the like are set in advance such that the distal end of the first member 102 that is positioned at the second position is inserted between the target bobbin 9A and the stock bobbin 9B.
- the diameter of the large-diameter portion of the cone-shaped bobbin 9 and the diameter of the cylindrical bobbin 9 are substantially similar. Hence, even if the cylindrical bobbin 9 is used, the second member 103 is inserted between the target bobbin 9A and the stock bobbin 9B.
- the cart controller 50 After the doffing cart 6 reaches the predetermined position with respect to the winding unit 2 in which the doffing operation is to be performed, before the clamping device 66 clamps the target bobbin 9A, the cart controller 50 causes the first member 102 to move in accordance with the shape of the bobbin 9. Alternatively, the cart controller 50 can cause the first member 102 to move in accordance with the shape of the bobbin 9 while the doffing cart 6 is running to the winding unit 2 in which the doffing operation is to be performed.
- the bobbin separating device 100 can cause the first member 102 to move in accordance with the shape of the bobbin 9. Hence, by moving the supporting member 101 to the separation position, the bobbin separating device 100 can properly insert the first member 102 and the second member 103 between the target bobbin 9A and the stock bobbin 9B. Accordingly, the bobbin separating device 100 can appropriately separate the bobbins 9 in accordance with the shape of the bobbins 9 to be separated.
- the driving mechanism 104 includes the air cylinder (the main member 104a and the rod member 104b) that functions as an actuator.
- the driving mechanism 104 can easily move the first member 102 by using the air cylinder.
- the driving mechanism 104 causes the first member 102 to move between the first position and the second position.
- the driving mechanism 104 maintains the first member 102 at the first position or the second position.
- the bobbin separating device 100 can cause the first member 102 to move in accordance with two different types of bobbins 9 in terms of the shape thereof.
- the bobbin separating device 100 can appropriately separate the bobbins 9 in each bobbin group.
- the driving mechanism 104 causes the first member 102 to move linearly between the first position and the second position. Because the first member 102 does not meander while moving between the first position and the second position, the driving mechanism 104 can cause the first member 102 to move within a small space.
- the spring 106 functions as a moving mechanism that causes the supporting member 101 to swing and move from the standby position to the separation position.
- the first link 68 functions as a moving mechanism that causes the supporting member 101 to swing and move from the separation position to the standby position. Accordingly, the bobbin separating device 100 can properly separate the bobbins 9 by swinging the supporting member 101.
- the proper separation of the bobbins 9 by the bobbin separating device 100 enables the clamping device 66 to properly clamp the target bobbin 9A separated by the bobbin separating device 100.
- the winding unit 2 includes the traversing device 29 that can adjust the traverse width of the yarn Y. Consequently, the winding units 2 can wind the yarns Y by mutually different winding methods.
- the automatic winder 1 in accordance with the winding method of the yarn Y adopted by each winding unit 2, different shapes of the bobbin 9 are used in different winding units 2. Even when the bobbins 9 having different shapes are used in different winding units 2, the bobbin separating device 100, by causing the first member 102 to move in accordance with the shape of the bobbin 9, can appropriately separate the bobbins 9 in accordance with the shape of the bobbins 9 to be separated.
- the first member 102 is caused to move by the driving mechanism 104 that includes the actuator.
- the first member 102 can be caused to move by a driving mechanism that does not include an actuator.
- the driving mechanism can cause movement of the first member 102 with, for example, a cam mechanism or the like that operates accompanying the swinging of the supporting member 101.
- the driving mechanism 104 can include an actuator other than the air cylinder.
- the driving mechanism 104 can use a motor, a solenoid, a hydraulic cylinder or the like, as the actuator. It is preferable that the actuator is light.
- a light actuator allows the bobbin separating device 100 to cause the supporting member 101 to move swiftly. Consequently, the bobbin separating device 100 can separate the bobbins 9 swiftly.
- the driving mechanism 104 causes the first member 102 to move to the first position or the second position and holds the first member 102 at the first position or the second position.
- the movement of the first member 102 by the driving mechanism 104 is not limited to the above two positions.
- the first member 102 can be caused to move to three or more positions and held at any of those positions.
- the bobbin separating device 100 can cause the first member 102 to move in accordance with three or more types of bobbins 9 of different shapes.
- the bobbin separating device 100 can appropriately separate the bobbins 9 in each bobbin group.
- the bobbin separating device 100 includes the second member 103. However, the second member 103 can be omitted if the first member 102 is movable. The bobbin separating device 100 can cause the second member 103 also to move by using the driving mechanism 104, similar to the first member 102. The bobbins 9 can be appropriately separated in accordance with the shape of the bobbins 9 if both the first member 102 and the second member 103 are movable. Moreover, the bobbin separating device 100 can include three or more movable members similar to the first member 102.
- the movement direction of the first member 102 is not limited to the direction indicated by the arrow X1.
- the first member 102 can be caused to move with respect to the supporting member 101 in a direction other than that of the arrow X1. That is, the movement direction of the first member 102 and the axial line X2 of the first shaft 105 can intersect at an angle other than orthogonally when viewed from the direction orthogonal to the movement direction of the first member 102 and the axial line X2.
- the driving mechanism 104 needs not to cause the first member 102 to move linearly.
- the driving mechanism 104 can, for example, cause the first member 102 to move such that a movement track thereof is arc-shaped.
- the supporting member 101 is caused to move between the standby position and the separation position by the spring 106 and the first link 68 that function as moving mechanisms.
- the present embodiment is not limited to the above, and the supporting member 101 can be caused to move by a driving source, such as a motor.
- the supporting member 101 is not limited to moving between the standby position and the separation position by swinging about the first shaft 105.
- the supporting member 101 can, for example, move linearly between the standby position and the separation position.
- the cart controller 50 can obtain the type of the bobbin 9 used in the winding unit 2, in which the doffing operation is to be performed, from a device other than the unit controller 24.
- the cart controller 50 can, for example, obtain the type of the bobbin 9 used in the winding unit 2, in which the doffing operation is to be performed, from the control device 8.
- the cart controller 50 can control the movement of the first member 102 based on the type of the bobbin 9 obtained from the unit controller 24 or the control device 8.
- the automatic winder 1 for example, can group the winding units 2 in accordance with the type of the bobbins 9 used in the winding units 2.
- the cart controller 50 can control the position of the first member 102 based on the group to which the winding unit 2 in which the doffing operation is to be performed belongs. Information pertaining to the group to which the winding unit 2 belongs can be obtained from, for example, the unit controller 24 or the control device 8.
- the traversing device 29 is not limited to the arm-type traversing device.
- a belt-type traversing device, a rotary traversing device, or a rod traversing device can be used as the traversing device 29.
- the winding unit 2 can use, instead of the arm-type traversing device or the like, a drum having a traverse groove for traversing the yarn Y being wound on the bobbin 9.
- the automatic winder 1 can include plural doffing carts 6 in accordance with the number of the winding units 2 present in the automatic winder 1.
- the automatic winder 1 includes the doffing cart 6 that performs both the doffing operation and the setting of the bobbin 9; however, the present invention is not limited to the example cited in the above embodiment.
- the automatic winder 1 can include a cart that performs the setting operation of the bobbin 9 that includes the separation operation of the bobbins 9 and a cart that performs the doffing operation.
- the bobbin separating device 100 and the doffing cart 6 are not limited to be used in the automatic winder 1.
- the bobbin separating device 100 and the doffing cart 6 can be used in any other yarn winding machine (for example, air-jet spinning machine, open-ended spinning machine, and the like) in which a yarn path is arranged such that a yarn moves from bottom to top.
- the bobbin separating device includes a driving mechanism, the contacting member can be moved with respect to the supporting member in accordance with the shape of the bobbin. Hence, by causing the supporting member to move to the separation position, the bobbin separating device can properly insert the contacting member between the target bobbin and the stock bobbin. Thus, the bobbin separating device can appropriately separate the bobbins in accordance with the shape of the bobbins to be separated.
- the driving mechanism can include an actuator. With this configuration, the driving mechanism can easily move the contacting member by using the actuator.
- the actuator can be an air cylinder. With this configuration, the driving mechanism can easily move the contacting member by using the air cylinder.
- the driving mechanism can move the contacting member to at least two positions predetermined with respect to the supporting member, and maintain the contacting member at the position to which the contacting member is moved.
- the bobbin separating device can move the contacting member in accordance with at least two or more different types of bobbins in terms of the shape thereof. In this manner, even if the shape of the bobbins differs among bobbin groups for which the bobbin separating device performs the separation operation, the bobbin separating device can appropriately separate the bobbins in each bobbin group.
- the driving mechanism can move the contacting member to change a protrusion length of the contacting member with respect to the supporting member.
- the bobbin separating device can appropriately separate the bobbins of two or more different types in terms of the shape thereof.
- the contacting member includes a first contacting member and a second contacting member.
- the first contacting member and the second contacting member are arranged so as to be contactable at mutually different positions with the stock bobbin in an axial direction of the stock bobbin, and the driving mechanism can move at least one of the first contacting member and the second contacting member.
- the driving mechanism can move at least one of the first contacting member and the second contacting member.
- the driving mechanism can move the first contacting member linearly. Because the first contacting member does not meander while moving, the driving mechanism can move the first contacting member within a small space.
- the bobbin separating device can include a moving mechanism that swings the supporting member to move the supporting member between the standby position and the separation position. With this configuration, the bobbin separating device can appropriately separate the bobbins by swinging the supporting member.
- a doffing cart includes the above bobbin separating device and a clamping device that clamps the target bobbin that is separated from the stock bobbin.
- the bobbins can be appropriately separated in accordance with the shape of the bobbins to be separated.
- the clamping device can appropriately clamp the target bobbin separated from the stock bobbin by the bobbin separating device.
- a yarn winding machine includes the above doffing cart and plural winding units each of which winds a yarn on the bobbin.
- Each of the winding units includes a traversing device that can adjust a traverse width of the yarn being wound on the bobbin.
- each winding unit can wind the yarn by using mutually different winding methods.
- the yarn winding machine in accordance with the winding method of the yarn adopted by each winding unit, different shapes of the bobbin are used in different winding units. Even when the bobbins of different shapes are used in different winding units, the bobbin separating device, by causing the contacting member to move in accordance with the shape of the bobbin, can appropriately separate the bobbins in accordance with the shape of the bobbins to be separated.
Abstract
Description
- The present invention generally relates to a bobbin separating device, a doffing cart, and a yarn winding machine.
- Yarn winding machines that include plural winding units and a doffing cart that is movable with respect to the winding units are known in the art. Each of the winding units forms a package by winding a yarn on a bobbin. When the package is fully wound in a particular winding unit, the doffing cart moves to this winding unit, doffs the fully wound package, and supplies a new bobbin to the winding unit. The yarn winding machine further includes, for each winding unit, a bobbin stocker that stocks plural bobbins. The doffing cart includes a clamping device that can clamp a bobbin. The clamping device clamps, from among plural bobbins stocked in the bobbin stocker, the bobbin positioned at a discharge position, and supplies the clamped bobbin to the winding unit. Such a doffing cart is disclosed in, for example, Japanese Patent Application Laid-open No.
2013-63841 - The doffing cart disclosed in
Patent Document 1 includes a bobbin separating device that separates the bobbins. The bobbin separating device separates the bobbin positioned at the discharge position from the other bobbins in the bobbin stocker so that the clamping device can easily clamp the bobbin positioned at the discharge position. - Bobbins of different shapes (for example, diameter) may be used in different winding units of one yarn winding machine. There is a requirement for the bobbin separating device to appropriately separate the bobbin positioned at the discharge position from the other bobbins even if the shapes of the bobbins used in different winding units are different.
- It is an object of the present invention to provide a bobbin separating device, a doffing cart, and a yarn winding machine capable of appropriately separating bobbins in accordance with the shapes of the bobbins to be separated.
- According to an aspect of the present invention, a bobbin separating device that separates, out of two or more bobbins arranged with respect to a target position, a target bobbin positioned at the target position and a stock bobbin arranged with respect to the target position, at a position further upstream of the target bobbin in an arrangement direction includes a contacting member that is contactable with a downstream portion of the stock bobbin in the arrangement direction; a supporting member that supports the contacting member and moves between a standby position that is a position at which the contacting member is located away from the stock bobbin and a separation position that is a position at which the contacting member makes contact with the downstream portion of the stock bobbin and separates the target bobbin and the stock bobbin; and a driving mechanism that moves the contacting member with respect to the supporting member.
- According to another aspect of the present invention, a doffing cart includes the above bobbin separating device and a clamping device that clamps the target bobbin that is separated from the stock bobbin.
- According to still another aspect of the present invention, a yarn winding machine includes the above doffing cart and plural winding units each of which winds a yarn on the bobbin. Each of the winding units includes a traversing device that adjusts a traverse width of the yarn being wound on the bobbin.
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FIG. 1 is a front view illustrating a general structure of an automatic winder according to an embodiment of the present invention. -
FIG. 2 is a side view illustrating a general structure of a winding unit and a doffing cart shown inFIG. 1 . -
FIG. 3 is a top view of a bobbin stocker. -
FIG. 4 is a drawing illustrating a general structure of a clamping device, a yarn clamping device, and an opener arranged in the doffing cart. -
FIG. 5 is a perspective view illustrating a general structure of a bobbin separating device arranged in the doffing cart. -
FIG. 6 is a schematic diagram illustrating a driving mechanism of the bobbin separating device, the clamping device, and the like. -
FIG. 7 is a cross-sectional view illustrating a coupled state of the driving mechanism and a first member. -
FIG. 8 is a schematic diagram illustrating the driving mechanism of the bobbin separating device, the clamping device, and the like. -
FIG. 9A is a drawing illustrating the first member inserted between a target bobbin and a stock bobbin. -
FIG. 9B is a drawing illustrating the target bobbin and the stock bobbin separated by the bobbin separating device. -
FIG. 10 is a top view illustrating cone-shaped bobbins stocked in a bobbin stocker. -
FIG. 11 is a top view illustrating cylindrical bobbins stocked in the bobbin stocker. - Exemplary embodiments of the present invention are explained in detail below with reference to the accompanying drawings. Identical elements are indicated by the same reference symbols in the drawings and redundant explanation thereof is omitted.
- As shown in
FIGS. 1 and2 , an automatic winder (yarn winding machine) 1 includesplural winding units 2, abobbin supplying device 3, adoffing cart 6, atransporting device 12, and acontrol device 8. Theplural winding units 2 are arranged side by side. Thebobbin supplying device 3 supplies a yarn supplying bobbin B to eachwinding unit 2. Thedoffing cart 6 performs a doffing operation of a package P at eachwinding unit 2. Thetransporting device 12 transports the package P doffed by thedoffing cart 6. Thecontrol device 8 controls various devices, such as thewinding units 2 and thedoffing cart 6, in theautomatic winder 1. Moreover, thecontrol device 8 manages the types of abobbin 9 used for winding a yarn Y in eachwinding unit 2. - As shown in
FIG. 2 , thewinding unit 2 winds on thebobbin 9 the yarn Y that is unwound from the yarn supplying bobbin B to form the package P. Thewinding unit 2 includes acradle arm 21, adrum 22, and atraversing device 29. Thecradle arm 21 rotatably supports thebobbin 9 at a position above the yarn supplying bobbin B. Thedrum 22 is rotatable while being in contact with a peripheral surface of thebobbin 9 or a peripheral surface of the package P. The package P is driven to rotate by the rotation of thedrum 22. Accordingly, the yarn Y is wound into the package. At the start of winding of the yarn Y, thebobbin 9 is driven to rotate by the rotation of thedrum 22. Accordingly, the yarn Y is wound on thebobbin 9. In an alternative configuration, thedrum 22 can be driven to rotate by the rotation of the bobbin 9 (package P). - As shown in
FIG. 2 , thecradle arm 21 is movable between a winding position (position indicated by a solid line inFIG. 2 ) and a removal position (position indicated by a chain double-dashed line inFIG. 2 ). The winding position is a position at which the package P (bobbin 9 at the start of winding) makes contact with thedrum 22. The removal position is a position at which the package P can be removed by thedoffing cart 6. Thecradle arm 21 has a pair of bobbin holders 23 (seeFIG. 4 ) that hold thebobbin 9. Out of the pair ofbobbin holders 23, onebobbin holder 23 is arranged so as to be movable in an axial direction of thedrum 22. With this configuration, thecradle arm 21 can hold thebobbin 9 between thebobbin holders 23 or release thebobbin 9 held by thebobbin holders 23. - As shown in
FIG. 2 , thedrum 22 is rotated by a drivingmotor 25. Thedriving motor 25 is controlled by aunit controller 24. Theunit controller 24 can be arranged for a predetermined number ofwinding units 2 or aseparate unit controller 24 can be arranged for eachwinding unit 2. Theunit controller 24 is communicably connected to thecontrol device 8. Theunit controller 24 can obtain from thecontrol device 8 conditions (information such as a length of the yarn Y wound on the package P or a diameter of the package P) which when satisfied mean that the package P is fully wound. Moreover, theunit controller 24 obtains from thecontrol device 8 the type of thebobbin 9 that is to be used by the windingunit 2 during winding of the yarn Y. - The traversing
device 29 is arranged at a position further upstream than thedrum 22 in a movement direction of the yarn Y. The traversingdevice 29 can adjust a traversing width of the yarn Y when the yarn is wound on thebobbin 9 or the package P. In the present embodiment, the traversingdevice 29 is an arm-type traversing device. The traversingdevice 29 includes atraversing arm 29a and a drivingmotor 29b. The base end of thetraversing arm 29a is coupled to the drivingmotor 29b. The drivingmotor 29b causes the distal end of thetraversing arm 29a to swing while the yarn Y has been guided to the distal end of thetraversing arm 29a. With this action, the traversingdevice 29 traverses the yarn Y being wound on thebobbin 9 or the package P. In thetraversing device 29, the traversing width can be adjusted by adjusting a width by which the distal end of thetraversing arm 29a is swung by the drivingmotor 29b. The width by which the drivingmotor 29b causes the distal end of thetraversing arm 29a to swing is controlled by theunit controller 24. Theunit controller 24 controls the width by which the distal end of thetraversing arm 29a is to be swung in accordance with, for example, the type (for example, the length) of thebobbin 9. The control of thetraversing device 29 can be performed by a device other than theunit controller 24. For example, a traverse controller dedicated to controlling thetraversing device 29 can be used for controlling thetraversing device 29. - The winding
unit 2 includes ayarn joining device 26, ayarn monitoring device 27, a not shown lower yarn catching section, and a not shown upper yarn catching section. Theyarn joining device 26 and theyarn monitoring device 27 are arranged at positions further upstream than the traversingdevice 29 in the movement direction of the yarn Y. Theyarn monitoring device 27 monitors information pertaining to the running yarn Y, and detects presence/absence of a yarn defect based on the monitored information. Upon detecting a yarn defect, theyarn monitoring device 27 cuts the yarn Y with ayarn cutting section 27a. When performing yarn joining of the yarn Y from the yarn supplying bobbin B and the yarn Y from the package P, the lower yarn catching section sucks and catches the end of the cut yarn Y from the yarn supplying bobbin B and guides it to theyarn joining device 26. The upper yarn catching section sucks and catches the end of the cut yarn Y from the package P and guides it to theyarn joining device 26. Theyarn joining device 26 joins together the yarns Y guided by the upper yarn catching section and the lower yarn catching section. - As shown in
FIGS. 1 and2 , each windingunit 2 includes abobbin stocker 65 that can stockplural bobbins 9. Thebobbin stocker 65 is fixed to amachine frame 61 at a position above the windingunit 2. - As shown in
FIG. 3 , thebobbin stocker 65 includes aloading member 65a and a pair of supportingpieces 65c.Plural bobbins 9 can be loaded on theloading member 65a.FIG. 3 shows a situation where only onebobbin 9 is loaded on thebobbin stocker 65. As shown inFIG. 2 , theloading member 65a is tilted with respect to the horizontal direction such that the end thereof toward the doffingcart 6 side is situated at a lower level than the other end thereof. The doffingcart 6 side is the side where the doffingcart 6 travels. When indicating directions in the following explanation, the doffingcart 6 side with respect to thebobbin stocker 65 shall be called the "front side" and thebobbin stocker 65 side with respect to the doffingcart 6 shall be called the "back side". - As shown in
FIGS. 2 and3 , aremoval opening 65d is arranged on the front side of theloading member 65a. Theremoval opening 65d is arranged such that abobbin 9 that is arranged closest to the doffingcart 6 side (front side) can be taken out in a downward direction. The pair of supportingpieces 65c is attached to theloading member 65a. The supportingpieces 65c extend inside theremoval opening 65d. The supportingpieces 65c are pressed in an upward direction by not shown coil springs. The supportingpieces 65c support thebobbin 9 from the bottom so that thebobbin 9 loaded on theloading member 65a will not fall down through theremoval opening 65d. - Among the
bobbins 9 loaded on theloading member 65a, thebobbin 9 that is closest to the doffingcart 6 side shall be called atarget bobbin 9A. Thetarget bobbin 9A is a bobbin that is supported by the supportingpieces 65c. The position of thetarget bobbin 9A in theloading member 65a shall be called a target position. Thebobbins 9 loaded on theloading member 65a are arranged with respect to the target position. All thebobbins 9 loaded on theloading member 65a except thetarget bobbin 9A shall be calledstock bobbins 9B. Thestock bobbins 9B are thebobbins 9 that are arranged with respect to the target position at positions further upstream than thetarget bobbin 9A in an arrangement direction. The arrangement direction of thebobbins 9 is a direction in which thebobbins 9 loaded on theloading member 65a move toward the target position (direction indicated by an arrow W inFIG. 2 ). - As shown in
FIGS. 2 and4 , the doffingcart 6 runs above the windingunit 2 along arail 7 arranged on themachine frame 61 of theautomatic winder 1. When the package P of the windingunit 2 is fully wound, the doffingcart 6 stops at a predetermined position that is predetermined with respect to the windingunit 2 in which the package P has been fully wound and performs the doffing operation. Once the doffing operation is over, the doffingcart 6 supplies anew bobbin 9 to the windingunit 2. The doffingcart 6 includes ayarn clamping device 62, anopener 63, aclamping device 66, and abobbin separating device 100. - The
opener 63 opens/closes thecradle arm 21 during the doffing operation. Theopener 63 includes anopen lever 63b and anopen hand 63c. Theopen lever 63b swings about ashaft 63a. Theopen hand 63c is attached to the distal end of theopen lever 63b and makes contact with acradle lever 21a when theopen lever 63b is swung. Thecradle arm 21 moves between the winding position and the removal position by the swinging of theopen lever 63b with theopen hand 63c making contact with thecradle arm 21. - The clamping
device 66 clamps thetarget bobbin 9A stocked in thebobbin stocker 65 and transports the clampedtarget bobbin 9A to thecradle arm 21. In further detail, the clampingdevice 66 clamps thetarget bobbin 9A stocked in thebobbin stocker 65 and moves thetarget bobbin 9A downward. The clampingdevice 66 includes a clampingmember 66a at the tip thereof and clamps thetarget bobbin 9A with the clampingmember 66a. During this action, the clampingdevice 66 pushes thetarget bobbin 9A downward with a force that is stronger than the pressing force of the coil springs that press the supportingpieces 65c. With this action, the positions of the supportingpieces 65c change, allowing thetarget bobbin 9A to pass through theremoval opening 65d. The clampingdevice 66 places thebobbin 9A, which is taken out from thebobbin stocker 65 through theremoval opening 65d, between thebobbin holders 23 of thecradle arm 21. - The
yarn clamping device 62, by extending, contracting, swinging, and the like, guides the yarn Y that is unwound from the yarn supplying bobbin B to thebobbin 9 that is newly set between thebobbin holders 23. - The
bobbin separating device 100 is arranged above the bobbin stocker 65 (seeFIG. 2 ). When theclamping device 66 is about to clamp thetarget bobbin 9A, thebobbin separating device 100 separates thetarget bobbin 9A and thestock bobbins 9B. That is, the clampingdevice 66 clamps thetarget bobbin 9A that has been separated from thestock bobbins 9B. - In further detail, the
bobbin separating device 100 includes, as shown inFIGS. 5 and6 , a supportingmember 101, a first member (contacting member, first contacting member) 102, a second member (contacting member, second contacting member) 103, and adriving mechanism 104. The supportingmember 101 is swingably supported by afirst shaft 105. Thefirst shaft 105 is fixed to ahousing 69 of the doffingcart 6. Thefirst member 102 and thesecond member 103 are attached to afront end 101a of the supportingmember 101. The distal end of thefirst member 102 and the distal end of thesecond member 103 extend downward. Thefirst member 102 and thesecond member 103 are contactable with thestock bobbin 9B at mutually different positions in an axial direction of thestock bobbin 9B. As shown inFIG. 6 , one end of aspring 106 is attached to aback end 101b of the supportingmember 101. The other end of thespring 106 is fixed to thehousing 69. Theback end 101b is pulled upward by thespring 106. - The
driving mechanism 104 causes thefirst member 102 to move with respect to the supportingmember 101. In the present embodiment, thedriving mechanism 104 includes an air cylinder that functions as an actuator. As shown inFIG. 7 , thedriving mechanism 104 includes amain member 104a and arod member 104b. Thedriving mechanism 104 causes therod member 104b to move with respect to themain member 104a by using pressure of air supplied into themain member 104a from anair supply source 20. That is, themain member 104a and therod member 104b constitute the air cylinder. Therod member 104b moves in a direction so as to protrude from themain member 104a by, for example, the pressure of air that is supplied into themain member 104a. Therod member 104b moves in the direction opposite to the direction in which therod member 104b protrudes by the action of air pressure when, for example, the supply of air into themain member 104a is stopped. - The
rod member 104b of thedriving mechanism 104 moves linearly between two predetermined positions in the protruding direction of therod member 104b. Thedriving mechanism 104 can maintain therod member 104b at the two predetermined positions. Thedriving mechanism 104 causes thefirst member 102 to move so as to change the length by which thefirst member 102 protrudes with respect to the supportingmember 101. - In the present embodiment, the
air supply source 20 is arranged in the doffingcart 6 to supply air to thedriving mechanism 104. Acart controller 50 arranged in the doffingcart 6 controls theair supply source 20 to supply or to stop the supply of air to thedriving mechanism 104. In an alternative configuration, an air supply source that is, for example, arranged alongside the windingunits 2 and that supplies air to plural windingunits 2 can be used as theair supply source 20. When such an air supply source is used, thecart controller 50 can control the supply of air or stoppage of supply of air from theair supply source 20 to thedriving mechanism 104 by controlling a valve or the like. In this manner, thecart controller 50 controls the movement of thefirst member 102 by controlling thedriving mechanism 104. Apart from the control of the movement of thefirst member 102, thecart controller 50 can perform control of running of the doffingcart 6 based on instructions from thecontrol device 8 and/or control of operations of each structural component of the doffingcart 6. Thecart controller 50 physically includes, for example, a Central Processing Unit (CPU), a Read-only Memory (ROM), and a Random Access Memory (RAM). - The
main member 104a of thedriving mechanism 104 is fixed to the upper surface of the supportingmember 101. A slit-shapedguide hole 101c is formed in the supportingmember 101. Thefirst member 102 makes contact with the lower surface of the supportingmember 101. That is, the supportingmember 101 is arranged between thefirst member 102 and thedriving mechanism 104. Thefirst member 102 and acoupling metal 104c are mutually coupled by abolt 104d. Thebolt 104d passes through theguide hole 101c of the supportingmember 101. Theguide hole 101c extends linearly along a movement direction of therod member 104b of thedriving mechanism 104. With this configuration, thefirst member 102 moves linearly accompanying the movement of therod member 104b of thedriving mechanism 104. - A movement direction of the
first member 102 is indicated by an arrow X1 inFIGS. 5 and7 . Thedriving mechanism 104 causes thefirst member 102 to move in a separating direction from an axial line X2 of thefirst shaft 105 or an approaching direction toward the axial line X2. That is, the movement direction of the first member 102 (direction of the arrow X1) and the axial line X2 of thefirst shaft 105 are mutually orthogonal when viewed from a direction orthogonal to the movement direction of thefirst member 102 and the axial line X2. - As explained above, the tip of the
rod member 104b moves linearly between the two predetermined positions. Thefirst member 102 is coupled to therod member 104b. That is, thedriving mechanism 104 can cause thefirst member 102 to move linearly between two predetermined positions with respect to the supportingmember 101. Moreover, thedriving mechanism 104 can maintain thefirst member 102 at the two predetermined positions with respect to the supportingmember 101. Out of the two predetermined positions with respect to the supportingmember 101, the position at which thefirst member 102 protrudes more to the front side than at the other position shall be called a first position and the other position shall be called a second position. That is, thedriving mechanism 104 causes thefirst member 102 to move linearly between the first position and the second position. - As shown in
FIGS. 5 and6 , the doffingcart 6 includes a regulatinglever 71, apressing lever 72, and afirst link 68. Abase end 71b of the regulatinglever 71 is swingably supported by asecond shaft 73. Thesecond shaft 73 is fixed to thehousing 69 of the doffingcart 6. The regulatinglever 71 is mounted on the supportingmember 101 of thebobbin separating device 100. The regulatinglever 71 swings accompanying the swinging of the supportingmember 101. Abase end 72b of thepressing lever 72 is swingably supported by thesecond shaft 73. Thepressing lever 72 is placed on the supportingmember 101 of thebobbin separating device 100. Thepressing lever 72 swings accompanying the swinging of the supportingmember 101. When theclamping device 66 clamps thetarget bobbin 9A, adistal end 71a of the regulatinglever 71 and adistal end 72a of thepressing lever 72 make contact with the lateral ends of thetarget bobbin 9A, and thereby perform positioning of thetarget bobbin 9A. - As shown in
FIG. 6 , thefirst link 68 is swingably supported by a swingingshaft 68c. Aprotrusion 68g is arranged in thefirst link 68 behind the swingingshaft 68c. One end of aspring 68f is attached to theprotrusion 68g. The other end of thespring 68f is fixed to thehousing 69 of the doffingcart 6. Aback end 68b of thefirst link 68 is pulled upward by thespring 68f. - Before the
clamping device 66 clamps thetarget bobbin 9A, theback end 68b of thefirst link 68 is pressed downward by acam 67. Theback end 101b of thebobbin separating device 100 is pressed downward by theback end 68b. The swinging of the supportingmember 101 is stopped while theback end 68b is pressing down theback end 101b. In this state, thefirst member 102 and thesecond member 103 are located away thestock bobbin 9B. The position of the supportingmember 101 in a stopped state by the pressing of thefirst link 68 shall be called a standby position. - The
cam 67 is caused to rotate by a drivingmember 67a. Acam follower 68e is arranged at the position at which thefirst link 68 and thecam 67 make contact. Afront end 68a of thefirst link 68 is coupled to theclamping device 66 via asecond link 68d. Thefirst link 68 pulls the clampingmember 66a of theclamping device 66 upward with thesecond link 68d while theback end 68b of thefirst link 68 is pressed down by thecam 67. - A separation operation of the
bobbins 9 performed by thebobbin separating device 100 and the clamping operation of thebobbin 9 performed by the clampingdevice 66 are explained next with reference toFIGS. 6 and8 .FIG. 6 shows a state before the separation operation and the clamping operation are performed. During the clamping operation performed by the clampingdevice 66, theback end 68b is released from being urged by thecam 67 by the rotation of thecam 67. With this action, theback end 68b moves upward by a pulling force of thespring 68f and theback end 101b moves upward by a pulling force of thespring 106. That is, the supportingmember 101 swings so as to move theback end 101b upward. With this action, thefirst member 102 and thesecond member 103 are inserted between thetarget bobbin 9A and thestock bobbin 9B. Thereafter, by further swinging of the supportingmember 101 by the action of the pulling force of thespring 106, thebobbin separating device 100 causes thestock bobbin 9B to move back, as shown inFIG. 8 . The position of the supportingmember 101 when thetarget bobbin 9A and thestock bobbin 9B are in a separated state by the action of thebobbin separating device 100 shall be called a separation position. - Accompanying the swinging of the supporting
member 101, the regulatinglever 71 and thepressing lever 72 swing about thesecond shaft 73 by their own weights. This causes thedistal end 71a and thedistal end 72a, respectively, to move downward. With this action, the regulatinglever 71 and thepressing lever 72 make contact with the lateral ends of thetarget bobbin 9A, and thereby perform positioning of thetarget bobbin 9A. - The clamping
member 66a swings so as to move downward by the downward swinging of thefront end 68a of thefirst link 68, and thereby theclamping device 66 clamps thetarget bobbin 9A. Thereafter, the clampingdevice 66 swings further, with thetarget bobbin 9A clamped, and takes out thetarget bobbin 9A from thebobbin stocker 65 downward via theremoval opening 65d and places thetarget bobbin 9A in thecradle arm 21 of the windingunit 2. - In this manner, the
spring 106 attached to theback end 101b functions as a moving mechanism that causes the supportingmember 101 to move from the standby position to the separation position. By being pressed downward by theback end 68b, theback end 101b swings so as to move downward. That is, thefirst link 68 functions as a moving mechanism that causes the supportingmember 101 to move from the separation position to the standby position. - Movements of the
first member 102 caused by thedriving mechanism 104 are explained below. When thebobbin separating device 100 separates thetarget bobbin 9A and thestock bobbin 9B, it is preferable that, as shown inFIG. 9A , thefirst member 102 and thesecond member 103 are inserted between thetarget bobbin 9A and thestock bobbin 9B. With this action, thefirst member 102 and thesecond member 103 make contact with a downstream portion of thestock bobbin 9B in the arrangement direction (in the direction of the arrow W). By further swinging of the supportingmember 101, as shown inFIGS. 8 and9B , thebobbin separating device 100 separates thetarget bobbin 9A and thestock bobbin 9B with thefirst member 102 and thesecond member 103 making contact with the downstream portion of thestock bobbin 9B in the arrangement direction. That is, thebobbin separating device 100 causes thestock bobbin 9B to move in a separating direction from thetarget bobbin 9A. The downstream portion of thestock bobbin 9B in the arrangement direction is the part of an outer peripheral surface of thestock bobbin 9B that is adjacent to thetarget bobbin 9A, the part being arranged next to the side of thetarget bobbin 9A. - The
bobbins 9 having different shapes may be in use in plural windingunits 2 arranged in theautomatic winder 1. Even when bobbins of different shapes are used, it is preferable that thefirst member 102 and thesecond member 103 are properly inserted between thetarget bobbin 9A and thestock bobbin 9B. - In the present embodiment, an example is presented in
FIG. 10 in which there is a mixed presence of the windingunits 2 that use cone-shapedbobbins 9 and the windingunits 2 that use cylindrical bobbins. In the cone-shapedbobbin 9, diameters at the lateral ends mutually differ. In the cylindrical bobbin, the diameters at both ends are mutually identical. The diameter of the large-diameter portion of the cone-shapedbobbin 9 and the diameter of thecylindrical bobbin 9 are substantially similar. The cone-shapedbobbin 9 is oriented such that, when thefirst member 102 and thesecond member 103 make contact with thebobbin 9, the small-diameter portion makes contact with thefirst member 102 and the large-diameter portion makes contact with the second member 103 (seeFIG. 10 ). - In this configuration, the
cart controller 50 obtains from theunit controller 24 the information pertaining to the type of thebobbin 9 used in the windingunit 2 in which the doffing operation is to be performed. Thecart controller 50 causes thefirst member 102 to move in accordance with the obtained type of the bobbin 9 (shape of the bobbin 9) in such a way that thefirst member 102 is inserted between thetarget bobbin 9A and thestock bobbin 9B when the supportingmember 101 is moved to the separation position. - Specifically, when separating the cone-shaped
bobbin 9, as shown inFIG. 10 , thecart controller 50 causes thefirst member 102 to move to the first position in advance. The mounting position of thedriving mechanism 104, the movement amount of therod member 104b, and the like are set in advance such that the distal end of thefirst member 102 that is positioned at the first position is inserted between thetarget bobbin 9A and thestock bobbin 9B. The attached position of thesecond member 103 is adjusted (set) such that thesecond member 103 is inserted between thetarget bobbin 9A and thestock bobbin 9B. - When separating the
cylindrical bobbins 9, as shown inFIG. 11 , thecart controller 50 causes thefirst member 102 to move to the second position in advance. The mounting position of thedriving mechanism 104, the movement amount of therod member 104b, and the like are set in advance such that the distal end of thefirst member 102 that is positioned at the second position is inserted between thetarget bobbin 9A and thestock bobbin 9B. In the present embodiment, the diameter of the large-diameter portion of the cone-shapedbobbin 9 and the diameter of thecylindrical bobbin 9 are substantially similar. Hence, even if thecylindrical bobbin 9 is used, thesecond member 103 is inserted between thetarget bobbin 9A and thestock bobbin 9B. - After the doffing
cart 6 reaches the predetermined position with respect to the windingunit 2 in which the doffing operation is to be performed, before theclamping device 66 clamps thetarget bobbin 9A, thecart controller 50 causes thefirst member 102 to move in accordance with the shape of thebobbin 9. Alternatively, thecart controller 50 can cause thefirst member 102 to move in accordance with the shape of thebobbin 9 while the doffingcart 6 is running to the windingunit 2 in which the doffing operation is to be performed. - By being configured as explained above and including the
driving mechanism 104, thebobbin separating device 100 according to the present embodiment can cause thefirst member 102 to move in accordance with the shape of thebobbin 9. Hence, by moving the supportingmember 101 to the separation position, thebobbin separating device 100 can properly insert thefirst member 102 and thesecond member 103 between thetarget bobbin 9A and thestock bobbin 9B. Accordingly, thebobbin separating device 100 can appropriately separate thebobbins 9 in accordance with the shape of thebobbins 9 to be separated. - The
driving mechanism 104 includes the air cylinder (themain member 104a and therod member 104b) that functions as an actuator. Thedriving mechanism 104 can easily move thefirst member 102 by using the air cylinder. - The
driving mechanism 104 causes thefirst member 102 to move between the first position and the second position. Thedriving mechanism 104 maintains thefirst member 102 at the first position or the second position. With this action, thebobbin separating device 100 can cause thefirst member 102 to move in accordance with two different types ofbobbins 9 in terms of the shape thereof. Hence, even if the shape of thebobbins 9 differs among bobbin groups in which thebobbin separating device 100 performs the separation operation, thebobbin separating device 100 can appropriately separate thebobbins 9 in each bobbin group. - The
driving mechanism 104 causes thefirst member 102 to move linearly between the first position and the second position. Because thefirst member 102 does not meander while moving between the first position and the second position, thedriving mechanism 104 can cause thefirst member 102 to move within a small space. - The
spring 106 functions as a moving mechanism that causes the supportingmember 101 to swing and move from the standby position to the separation position. Thefirst link 68 functions as a moving mechanism that causes the supportingmember 101 to swing and move from the separation position to the standby position. Accordingly, thebobbin separating device 100 can properly separate thebobbins 9 by swinging the supportingmember 101. - The proper separation of the
bobbins 9 by thebobbin separating device 100 enables theclamping device 66 to properly clamp thetarget bobbin 9A separated by thebobbin separating device 100. - The winding
unit 2 includes thetraversing device 29 that can adjust the traverse width of the yarn Y. Consequently, the windingunits 2 can wind the yarns Y by mutually different winding methods. In theautomatic winder 1, in accordance with the winding method of the yarn Y adopted by each windingunit 2, different shapes of thebobbin 9 are used in different windingunits 2. Even when thebobbins 9 having different shapes are used in different windingunits 2, thebobbin separating device 100, by causing thefirst member 102 to move in accordance with the shape of thebobbin 9, can appropriately separate thebobbins 9 in accordance with the shape of thebobbins 9 to be separated. - The embodiments of the present invention are explained above. The present invention, however, is not limited to the above embodiments. For example, in the above embodiment, the
first member 102 is caused to move by thedriving mechanism 104 that includes the actuator. In an alternative configuration, thefirst member 102 can be caused to move by a driving mechanism that does not include an actuator. In place of an actuator, the driving mechanism can cause movement of thefirst member 102 with, for example, a cam mechanism or the like that operates accompanying the swinging of the supportingmember 101. Moreover, thedriving mechanism 104 can include an actuator other than the air cylinder. For example, thedriving mechanism 104 can use a motor, a solenoid, a hydraulic cylinder or the like, as the actuator. It is preferable that the actuator is light. A light actuator allows thebobbin separating device 100 to cause the supportingmember 101 to move swiftly. Consequently, thebobbin separating device 100 can separate thebobbins 9 swiftly. - The
driving mechanism 104 causes thefirst member 102 to move to the first position or the second position and holds thefirst member 102 at the first position or the second position. However, the movement of thefirst member 102 by thedriving mechanism 104 is not limited to the above two positions. For example, thefirst member 102 can be caused to move to three or more positions and held at any of those positions. When this configuration is adopted, thebobbin separating device 100 can cause thefirst member 102 to move in accordance with three or more types ofbobbins 9 of different shapes. In this manner, even if three or more types ofbobbins 9 of different shapes are present in plural bobbin groups for which thebobbin separating device 100 performs separation, thebobbin separating device 100 can appropriately separate thebobbins 9 in each bobbin group. - The
bobbin separating device 100 includes thesecond member 103. However, thesecond member 103 can be omitted if thefirst member 102 is movable. Thebobbin separating device 100 can cause thesecond member 103 also to move by using thedriving mechanism 104, similar to thefirst member 102. Thebobbins 9 can be appropriately separated in accordance with the shape of thebobbins 9 if both thefirst member 102 and thesecond member 103 are movable. Moreover, thebobbin separating device 100 can include three or more movable members similar to thefirst member 102. - The movement direction of the
first member 102 is not limited to the direction indicated by the arrow X1. Thefirst member 102 can be caused to move with respect to the supportingmember 101 in a direction other than that of the arrow X1. That is, the movement direction of thefirst member 102 and the axial line X2 of thefirst shaft 105 can intersect at an angle other than orthogonally when viewed from the direction orthogonal to the movement direction of thefirst member 102 and the axial line X2. Thedriving mechanism 104 needs not to cause thefirst member 102 to move linearly. Thedriving mechanism 104 can, for example, cause thefirst member 102 to move such that a movement track thereof is arc-shaped. - The supporting
member 101 is caused to move between the standby position and the separation position by thespring 106 and thefirst link 68 that function as moving mechanisms. The present embodiment, however, is not limited to the above, and the supportingmember 101 can be caused to move by a driving source, such as a motor. The supportingmember 101 is not limited to moving between the standby position and the separation position by swinging about thefirst shaft 105. The supportingmember 101 can, for example, move linearly between the standby position and the separation position. - The
cart controller 50 can obtain the type of thebobbin 9 used in the windingunit 2, in which the doffing operation is to be performed, from a device other than theunit controller 24. Thecart controller 50 can, for example, obtain the type of thebobbin 9 used in the windingunit 2, in which the doffing operation is to be performed, from thecontrol device 8. - It is not necessary for the
cart controller 50 to control the movement of thefirst member 102 based on the type of thebobbin 9 obtained from theunit controller 24 or thecontrol device 8. Theautomatic winder 1, for example, can group the windingunits 2 in accordance with the type of thebobbins 9 used in the windingunits 2. Thecart controller 50 can control the position of thefirst member 102 based on the group to which the windingunit 2 in which the doffing operation is to be performed belongs. Information pertaining to the group to which the windingunit 2 belongs can be obtained from, for example, theunit controller 24 or thecontrol device 8. - The traversing
device 29 is not limited to the arm-type traversing device. For example, a belt-type traversing device, a rotary traversing device, or a rod traversing device can be used as the traversingdevice 29. In an alternative configuration, the windingunit 2 can use, instead of the arm-type traversing device or the like, a drum having a traverse groove for traversing the yarn Y being wound on thebobbin 9. - The
automatic winder 1 can includeplural doffing carts 6 in accordance with the number of the windingunits 2 present in theautomatic winder 1. In the above embodiment, theautomatic winder 1 includes the doffingcart 6 that performs both the doffing operation and the setting of thebobbin 9; however, the present invention is not limited to the example cited in the above embodiment. Theautomatic winder 1 can include a cart that performs the setting operation of thebobbin 9 that includes the separation operation of thebobbins 9 and a cart that performs the doffing operation. - In the embodiment of the present invention, the
bobbin separating device 100 and the doffingcart 6 are not limited to be used in theautomatic winder 1. For example, thebobbin separating device 100 and the doffingcart 6 can be used in any other yarn winding machine (for example, air-jet spinning machine, open-ended spinning machine, and the like) in which a yarn path is arranged such that a yarn moves from bottom to top. - According to an aspect of the present invention, a bobbin separating device that separates, out of two or more bobbins arranged with respect to a target position, a target bobbin positioned at the target position and a stock bobbin arranged with respect to the target position, at a position further upstream of the target bobbin in an arrangement direction includes a contacting member that is contactable with a downstream portion of the stock bobbin in the arrangement direction; a supporting member that supports the contacting member and moves between a standby position that is a position at which the contacting member is located away from the stock bobbin and a separation position that is a position at which the contacting member makes contact with the downstream portion of the stock bobbin and separates the target bobbin and the stock bobbin; and a driving mechanism that moves the contacting member with respect to the supporting member.
- Because the bobbin separating device includes a driving mechanism, the contacting member can be moved with respect to the supporting member in accordance with the shape of the bobbin. Hence, by causing the supporting member to move to the separation position, the bobbin separating device can properly insert the contacting member between the target bobbin and the stock bobbin. Thus, the bobbin separating device can appropriately separate the bobbins in accordance with the shape of the bobbins to be separated.
- The driving mechanism can include an actuator. With this configuration, the driving mechanism can easily move the contacting member by using the actuator.
- The actuator can be an air cylinder. With this configuration, the driving mechanism can easily move the contacting member by using the air cylinder.
- The driving mechanism can move the contacting member to at least two positions predetermined with respect to the supporting member, and maintain the contacting member at the position to which the contacting member is moved. With this configuration, the bobbin separating device can move the contacting member in accordance with at least two or more different types of bobbins in terms of the shape thereof. In this manner, even if the shape of the bobbins differs among bobbin groups for which the bobbin separating device performs the separation operation, the bobbin separating device can appropriately separate the bobbins in each bobbin group.
- The driving mechanism can move the contacting member to change a protrusion length of the contacting member with respect to the supporting member. In this manner, the bobbin separating device can appropriately separate the bobbins of two or more different types in terms of the shape thereof.
- The contacting member includes a first contacting member and a second contacting member. The first contacting member and the second contacting member are arranged so as to be contactable at mutually different positions with the stock bobbin in an axial direction of the stock bobbin, and the driving mechanism can move at least one of the first contacting member and the second contacting member. With this configuration, at least one of the first contacting member and the second contacting member can be moved in accordance with the shape of the bobbin. In this manner, the bobbins can be appropriately separated by the first contacting member and the second contacting member.
- The driving mechanism can move the first contacting member linearly. Because the first contacting member does not meander while moving, the driving mechanism can move the first contacting member within a small space.
- The bobbin separating device can include a moving mechanism that swings the supporting member to move the supporting member between the standby position and the separation position. With this configuration, the bobbin separating device can appropriately separate the bobbins by swinging the supporting member.
- According to another aspect of the present invention, a doffing cart includes the above bobbin separating device and a clamping device that clamps the target bobbin that is separated from the stock bobbin.
- Because the doffing cart includes the above bobbin separating device, the bobbins can be appropriately separated in accordance with the shape of the bobbins to be separated. The clamping device can appropriately clamp the target bobbin separated from the stock bobbin by the bobbin separating device.
- According to still another aspect of the present invention, a yarn winding machine includes the above doffing cart and plural winding units each of which winds a yarn on the bobbin. Each of the winding units includes a traversing device that can adjust a traverse width of the yarn being wound on the bobbin.
- Because the traversing device can adjust a traverse width of the yarn, each winding unit can wind the yarn by using mutually different winding methods. In the yarn winding machine, in accordance with the winding method of the yarn adopted by each winding unit, different shapes of the bobbin are used in different winding units. Even when the bobbins of different shapes are used in different winding units, the bobbin separating device, by causing the contacting member to move in accordance with the shape of the bobbin, can appropriately separate the bobbins in accordance with the shape of the bobbins to be separated.
Claims (10)
- A bobbin separating device (100) adapted to separate, out of two or more bobbins (9) arranged with respect to a target position, a target bobbin (9A) positioned at the target position and a stock bobbin (9B) arranged with respect to the target position, at a position further upstream of the target bobbin in an arrangement direction, comprising:a contacting member (102, 103) adapted to be contactable with a downstream portion of the stock bobbin (9B) in the arrangement direction;a supporting member (101) adapted to support the contacting member (102, 103) and to move between a standby position that is a position at which the contacting member (102, 103) is located away from the stock bobbin (9B) and a separation position that is a position at which the contacting member (102, 103) makes contact with the downstream portion of the stock bobbin (9B) and separates the target bobbin (9A) and the stock bobbin (9B); anda driving mechanism (104) adapted to move the contacting member (102; 103) with respect to the supporting member (101).
- The bobbin separating device (100) as claimed in Claim 1, wherein the driving mechanism (104) includes an actuator.
- The bobbin separating device (100) as claimed in Claim 2, wherein the actuator (104) is an air cylinder.
- The bobbin separating device (100) as claimed in any one of Claims 1 to 3, wherein the driving mechanism (104) is adapted to move the contacting member (102; 103) to at least two positions predetermined with respect to the supporting member (101), and to maintain the contacting member (102; 103) at the position to which the contacting member (102; 103) is moved.
- The bobbin separating device (100) as claimed in any one of Claims 1 to 4, wherein the driving mechanism (104) is adapted to move the contacting member (102; 103) to change a protrusion length of the contacting member (102) with respect to the supporting member (101).
- The bobbin separating device (100) as claimed in any one of Claims 1 to 5, wherein
the contacting member includes (102, 103) a first contacting member (102) and a second contacting member (103),
the first contacting member (102) and the second contacting member (103) are arranged so as to be contactable at mutually different positions with the stock bobbin (9B) in an axial direction of the stock bobbin (9B), and
the driving mechanism (104) is adapted to move at least one of the first contacting member (102) and the second contacting member (103). - The bobbin separating device (100) as claimed in Claim 6, wherein the driving mechanism (104) is adapted to move the first contacting member (102) linearly.
- The bobbin separating device (100) as claimed in any one of Claims 1 to 7, further comprising a moving mechanism (68, 106) adapted to swing the supporting member (101) to move the supporting member (101) between the standby position and the separation position.
- A doffing cart (6) comprising:the bobbin separating device (100) as claimed in any one of Claims 1 to 8; anda clamping device (66) adapted to clamp the target bobbin (9A) that is separated from the stock bobbin (9B).
- A yarn winding machine (1) comprising:the doffing cart (6) as claimed in Claim 9; andplural winding units (2) each of which is adapted to wind a yarn (Y) on the bobbin (9),wherein each of the winding units (2) includes a traversing device (29) adapted to adjust a traverse width of the yarn (Y) being wound on the bobbin (9).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2014207325A JP2016074527A (en) | 2014-10-08 | 2014-10-08 | Bobbin separation unit, doffing truck, and yarn winding unit |
Publications (2)
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EP3006384A1 true EP3006384A1 (en) | 2016-04-13 |
EP3006384B1 EP3006384B1 (en) | 2017-03-08 |
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EP15186225.7A Active EP3006384B1 (en) | 2014-10-08 | 2015-09-22 | Bobbin separating device, doffing cart, and yarn winding machine |
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EP (1) | EP3006384B1 (en) |
JP (1) | JP2016074527A (en) |
CN (1) | CN105502094B (en) |
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CN111410093B (en) * | 2020-03-27 | 2023-07-21 | 青岛宏大纺织机械有限责任公司 | Tube separation device and tube separation method for doffing trolley |
Citations (2)
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EP0429806A1 (en) * | 1989-11-30 | 1991-06-05 | Palitex Project-Company GmbH | Container for bobin-tubes |
EP2573233A2 (en) * | 2011-09-20 | 2013-03-27 | Murata Machinery, Ltd. | Doffing apparatus and textile machine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3502611A1 (en) * | 1985-01-26 | 1986-07-31 | Dürkoppwerke GmbH, 4800 Bielefeld | DEVICE FOR REMOVING COILS FROM A SPINNING MACHINE |
DE3618857C2 (en) * | 1986-06-04 | 1996-08-14 | Truetzschler Gmbh & Co Kg | Device for the flying change of spinning cans for a spinning preparation machine |
CS268434B1 (en) * | 1987-12-02 | 1990-03-14 | Milan Ing Eckhardt | Device for cones' doffing with textile machine |
JP3203961B2 (en) * | 1994-06-13 | 2001-09-04 | 村田機械株式会社 | Tube supply device for winder winding |
JP3161382B2 (en) * | 1997-10-03 | 2001-04-25 | 村田機械株式会社 | Automatic doffing device for spinning machines |
DE19910764B4 (en) * | 1999-03-11 | 2011-11-10 | Rieter Ingolstadt Gmbh | Method and device for handling an empty tube on a textile machine |
FR2853332B1 (en) * | 2003-04-07 | 2005-11-25 | Rieter Icbt | DEVICE FOR PLACING AND REMOVING WIRE COILS IN A TEXTILE MACHINE |
JP2008162712A (en) * | 2006-12-27 | 2008-07-17 | Murata Mach Ltd | Doffing device and textile machine having same |
-
2014
- 2014-10-08 JP JP2014207325A patent/JP2016074527A/en active Pending
-
2015
- 2015-09-22 EP EP15186225.7A patent/EP3006384B1/en active Active
- 2015-09-29 CN CN201510629973.6A patent/CN105502094B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0429806A1 (en) * | 1989-11-30 | 1991-06-05 | Palitex Project-Company GmbH | Container for bobin-tubes |
EP2573233A2 (en) * | 2011-09-20 | 2013-03-27 | Murata Machinery, Ltd. | Doffing apparatus and textile machine |
JP2013063841A (en) | 2011-09-20 | 2013-04-11 | Murata Machinery Ltd | Doffing apparatus, and textile machine with the same |
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JP2016074527A (en) | 2016-05-12 |
EP3006384B1 (en) | 2017-03-08 |
CN105502094B (en) | 2019-07-05 |
CN105502094A (en) | 2016-04-20 |
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