EP3686141A1 - Yarn supplying bobbin feeding device - Google Patents
Yarn supplying bobbin feeding device Download PDFInfo
- Publication number
- EP3686141A1 EP3686141A1 EP20150553.4A EP20150553A EP3686141A1 EP 3686141 A1 EP3686141 A1 EP 3686141A1 EP 20150553 A EP20150553 A EP 20150553A EP 3686141 A1 EP3686141 A1 EP 3686141A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- yarn supplying
- guiding
- suction
- supplying bobbin
- 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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- 238000005520 cutting process Methods 0.000 claims abstract description 110
- 238000004891 communication Methods 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 230000032258 transport Effects 0.000 description 49
- 230000007246 mechanism Effects 0.000 description 18
- 238000004804 winding Methods 0.000 description 15
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000149 penetrating effect Effects 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
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/061—Orientating devices
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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
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/066—Depositing full or empty bobbins into a container or stacking them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the present invention relates to a yarn supplying bobbin feeding device that supplies a yarn supplying bobbin on which a yarn has been wound.
- a yarn supplying bobbin feeding device disclosed in JP 2008-230830 A transports yarn supplying bobbins, on which a yarn has been wound, by using a vibration feeder.
- the yarn supplying bobbins transported by the vibration feeder are dropped into a parts feeder bowl in which the yarn supplying bobbins are aligned.
- the yarn supplying bobbins fed by the vibration feeder there are situations where the yarn ends are pulled out for a considerable length from the surface of the yarn supplying bobbins, or the yarn ends of a plurality of yarn supplying bobbins get entangled with each other.
- a yarn end cutting device that can cut the yarn ends is arranged between the vibration feeder and the parts feeder bowl in the transport direction of the yarn supplying bobbins.
- the yarn end cutting device includes a guiding member that guides the yarn supplying bobbins to downstream side in a transport direction of the yarn supplying bobbins, and a cutter that cuts the yarn ends extending from the yarn supplying bobbins.
- a yarn end cutting device having a slit formed in the guiding member, for sucking the yarn ends is known in the art. More specifically, such a yarn end cutting device is connected to a suction source that generates a negative pressure by rotating a fan by using a motor, for example, and sucks the yarn ends of the yarns wound on the yarn supplying bobbins through this slit.
- the yarn ends extending from the yarn supplying bobbins can be sucked, captured, and cut. Because the cut yarn ends are removed by suction as it is, the time and effort for collecting the yarn ends is also reduced.
- the supply of the yarn supplying bobbins to the yarn end cutting device is not always continuous. For example, if the supply of yarn supplying bobbins to the vibration feeder is temporarily interrupted, the supply of yarn supplying bobbins to the yarn end cutting device is also temporarily interrupted. If the supply of the yarn supplying bobbins is interrupted but the negative pressure is continuously generated by the suction source, the suction source consumes power wastefully. On the other hand, for example, if the power supply of the suction source is turned on/off depending on whether the yarn supplying bobbin is supplied, it takes time and effort, and there is a possibility that the production efficiency may be reduced.
- one object of the present invention is to easily reduce power consumption of a suction source to which a yarn end cutting device is connected.
- a yarn supplying bobbin feeding device includes a yarn supplying bobbin transport device that transports a plurality of yarn supplying bobbins on which a yarn has been wound; a yarn supplying bobbin aligning device that aligns the yarn supplying bobbins and that is arranged downstream of the yarn supplying bobbin transport device in a transport direction of the yarn supplying bobbins; and a yarn end cutting device that includes a cutting member for cutting yarn ends extending from the yarn supplying bobbins and that is arranged between the yarn supplying bobbin transport device and the yarn supplying bobbin aligning device in the transport direction.
- the yarn end cutting device includes a suction member having a suction vent connected to a suction source and that sucks the yarn ends by the action of a negative pressure supplied thereto by the suction source via the suction vent; a connecting member in which a communication path that connects the suction vent and the suction source is formed; and an opening/closing member capable of switching, by opening and closing at least one of the suction vent and the communication path, the suction member between a supply state in which the negative pressure is supplied via the suction vent and a non-supply state in which the negative pressure is not supplied via the suction vent.
- the up-down direction in FIG. 1 is defined as a vertical direction (up-down direction) in which the gravity acts.
- a left-right direction in FIG. 2 is defined as a front-back direction.
- a direction orthogonal to both the up-down direction and the front-back direction is defined as a left-right direction.
- the yarn winding equipment 1 includes the yarn supplying bobbin feeding device 2, a yarn supplying bobbin processing device 3, a yarn winding machine 4, and a main controller 5.
- the yarn supplying bobbin feeding device 2 transports yarn supplying bobbins B and supplies them to the yarn supplying bobbin processing device 3.
- a yarn has been wound on each of the yarn supplying bobbins B by a not-shown spinning machine that spins the yarn.
- the yarn supplying bobbin processing device 3 performs a predetermined process so that the yarn wound on the yarn supplying bobbin B can be smoothly unwound by the yarn winding machine 4.
- the yarn winding machine 4 includes a plurality of winding units 4a. Each winding unit 4a unwinds the yarn from a yarn supplying bobbin B, and forms a package by winding the yarn on a winding yarn supplying bobbin while removing any yarn defects in the yarn.
- the main controller 5 controls the entire yarn winding equipment 1 in an integrated manner.
- the yarn winding equipment 1 includes a suction source 6 for sucking a yarn end Y (see FIG. 3 ) extending from the yarn supplying bobbin B fed by the yarn supplying bobbin feeding device 2 (see FIG. 3 , details will be given later).
- FIG. 2 is a side view of the yarn supplying bobbin feeding device 2.
- FIG. 3 is a perspective view of the yarn supplying bobbin feeding device 2.
- Continuous-line arrows shown in FIG. 2 indicate a transport direction in which the yarn supplying bobbins B are transported.
- the yarn supplying bobbin feeding device 2 includes a yarn supplying bobbin receiving box 11, a yarn supplying bobbin transport device 12, a yarn end cutting device 13, a yarn supplying bobbin aligning device 14, and a control device 15.
- the yarn supplying bobbin receiving box 11 is a container in which the yarn supplying bobbins B on which the yarn has been wound are put.
- the yarn supplying bobbin receiving box 11 is arranged at a back end of the yarn supplying bobbin feeding device 2.
- the yarn supplying bobbin receiving box 11 is movable between an initial position thereof (see a box shown with a solid line) and a supply position thereof (see a box shown with a two-dot chain line).
- a hydraulic cylinder 11a for example, is used to move the yarn supplying bobbin receiving box 11.
- the yarn supplying bobbins B are put into the yarn supplying bobbin receiving box 11 manually by an operator or by a not-shown yarn supplying bobbin introducing device.
- the yarn supplying bobbins B fall on the yarn supplying bobbin transport device 12 by their own weight when the yarn supplying bobbin receiving box 11 moves from the initial position to the supply position.
- the yarn supplying bobbin transport device 12 is a device that transports the yarn supplying bobbins B supplied from the yarn supplying bobbin receiving box 11.
- the yarn supplying bobbin transport device 12 is arranged, in the transport direction of the yarn supplying bobbins B, between the yarn supplying bobbin receiving box 11 and the yarn end cutting device 13.
- the yarn supplying bobbin transport device 12 includes a placement member 22 in which is formed a placement path 21 on which the yarn supplying bobbins B can be placed, and a vibration motor 23 that vibrates the placement member 22.
- the yarn supplying bobbin transport device 12 the yarn supplying bobbins B placed on the placement path 21 can be transported forward when the vibration motor 23 vibrates the placement member 22.
- the yarn supplying bobbins B supplied from the yarn supplying bobbin receiving box 11 are transported on the placement path 21 in a piled state. Therefore, the yarn ends Y may be pulled out for a considerable length from the surface of the yarn supplying bobbins B, or the yarn ends Y of multiple yarn supplying bobbins B may get entangled with each other.
- the yarn end cutting device 13 is a device that cuts the yarn ends Y extending from the yarn supplying bobbins B.
- the yarn end cutting device 13 is arranged between the yarn supplying bobbin transport device 12 and the yarn supplying bobbin aligning device 14 in the transport direction.
- the yarn end cutting device 13 includes a guiding member 31 that guides the yarn supplying bobbins B forward and downward. A more detailed configuration of the yarn end cutting device 13 will be described later.
- the yarn supplying bobbin aligning device 14 is a device that aligns the yarn supplying bobbins B and transports them one by one to the downstream side in the transport direction (toward the yarn supplying bobbin processing device 3).
- the yarn supplying bobbin aligning device 14 is arranged more downstream than the yarn supplying bobbin transport device 12 and the yarn end cutting device 13 in the transport direction.
- the yarn supplying bobbin aligning device 14 includes a housing 41, a bowl member 42 (a receiving member according to the present invention) arranged inside the housing 41 but below the guiding member 31 of the yarn end cutting device 13, and a vibrating solenoid 43 capable of vibrating the bowl member 42.
- the bowl member 42 is open from above.
- a spiral passage 44 in which the yarn supplying bobbins B are placed in a laying state is formed in the bowl member 42.
- the yarn supplying bobbin aligning device 14 when the vibrating solenoid 43 vibrates the bowl member 42, the yarn supplying bobbins B are transported along the passage 44.
- the control device 15 is electrically connected to the hydraulic cylinder 11a, the vibration motor 23, the vibrating solenoid 43, and the like.
- the control device 15 performs drive control of these parts.
- FIG. 4A is a plan view of the guiding member 31.
- FIG. 4B is an explanatory view showing members and the like arranged below the guiding member 31.
- FIG. 4C is a side view of the yarn end cutting device 13.
- the yarn end cutting device 13 is a device that cuts the yarn ends Y extending from the yarn supplying bobbins B while guiding the yarn supplying bobbins B transported by the yarn supplying bobbin transport device 12 to the downstream side in the transport direction (toward the yarn supplying bobbin aligning device 14).
- the yarn end cutting device 13 includes the guiding member 31 (see FIG. 3 and FIGS. 4A to 4C ) that guides the yarn supplying bobbins B, and a plurality of cutting members 32 capable of cutting the yarn ends Y (see FIG. 4B ). As will be described later, the yarn end cutting device 13 is capable of sucking and capturing the yarn ends Y.
- the guiding member 31 (a suction member according to the present invention) is a member formed by sheet metal processing a metal plate, for example.
- the guiding member 31 is arranged above the bowl member 42 of the yarn supplying bobbin aligning device 14 (see FIG. 3 ).
- the guiding member 31 has a bottom part 52 in which a planar guide path 51 extending downward and forward is formed, and two side members 53 extending upward from both the left and right ends of the bottom part 52.
- the guide path 51 is inclined more downward as one goes more toward the front.
- a direction in which the guide path 51 extends that is, a direction in which the yarn supplying bobbins B are guided along the guide path 51, is defined as a guiding direction (see FIG. 4C ).
- the guiding direction intersects the up-down direction.
- the yarn supplying bobbin transport device 12 side is defined as a proximal end side (other side according to the present invention), and a side opposite to the proximal end side is defined as a distal end side (one side according to the present invention).
- the left-right direction is defined as a width direction of the guide path 51.
- the guide path 51 need not be necessarily flat but can be curved.
- a suction vent 54 that passes through the bottom part 52 in the up-down direction and extends in the left-right direction is formed in the middle of the bottom part 52 in the guiding direction.
- a plurality of yarn end guide slits 55 that extends toward a proximal end side thereof at least in the guiding direction is formed.
- the suction vent 54 is arranged closer to the proximal end side than the yarn end guide slits 55 in the guiding direction.
- the yarn end guide slits 55 are formed side by side in the width direction.
- Each yarn end guide slit 55 is curved such that the width thereof narrows as one goes from the tip end part of the bottom part 52 toward the proximal end side thereof in the guiding direction.
- the yarn end guide slits 55 need not necessarily be curved, but can extend linearly, for example. Further, the yarn end guide slits 55 need not necessarily become narrower as one goes from the tip end part toward the proximal end side in the guiding direction of the bottom part 52.
- the side members 53 of the guiding member 31 function to prevent the yarn supplying bobbins B, which are traveling on the guide path 51, from falling off the guide path 51.
- a front end of each of the side members 53 is supported so as to be swingable by an L-shaped support member 56, for example.
- a back end of each of the side members 53 is supported from below by, for example, a plate-like support member 57 (details will be given later).
- the cutting members 32 are arranged below the bottom part 52 of the guiding member 31.
- the cutting member 32 includes a scissors-like cutter 61 arranged immediately below a tip end on the proximal end side in the guiding direction of the yarn end guide slit 55, and an air cylinder 62 that operates the cutter 61.
- the air cylinder 62 is controlled by the control device 15.
- the cutter 61 is driven by the air cylinder 62 when cutting the yarn ends Y that have entered the tip end on the proximal end side in the guiding direction of the yarn end guide slit 55.
- the air cylinder 62 that drives the cutter 61 can be replaced with, for example, a motor.
- the yarn winding equipment 1 is provided with the suction source 6 (see FIG. 3 ).
- the suction source 6 includes an electric motor 6a and a fan 6b that is rotationally driven by the motor 6a.
- the motor 6a is driven and controlled by the main controller 5, for example, so as to rotate at a constant rotational speed.
- the suction vent 54 of the guiding member 31 is connected to the suction source 6 via a connecting member 71 and a flexible hose 72.
- the connecting member 71 and the flexible hose 72 will be described in detail later.
- the yarn end cutting device 13 can suck the yarn ends Y extending from the yarn supplying bobbins B via the suction vent 54.
- the connecting member 71 is a hollow member attached to a lower surface of the bottom part 52 of the guiding member 31.
- the connecting member 71 has an opening 73 that has a shape similar to the suction vent 54 of the guiding member 31.
- An internal space 74 of the connecting member 71 communicates with the suction vent 54 via the opening 73.
- the connecting member 71 is connected to the flexible hose 72.
- the flexible hose 72 is, for example, a bendable hose having a bellows structure. One end of the flexible hose 72 is connected to the connecting member 71, and the other end is connected to the suction source 6.
- the flexible hose 72 is routed inside the housing 41 of the yarn supplying bobbin aligning device 14, and extends from a side surface of the housing 41 to the outside of the housing 41 (see FIG. 3 ).
- a communication path 76 that connects the suction source 6 and the suction vent 54 is formed by the internal space 74 of the connecting member 71 and an internal space 75 of the flexible hose 72. With this structure, a negative pressure is supplied in a space near the suction vent 54 via the suction vent 54.
- the connecting member 71 and the flexible hose 72 correspond to a connecting member according to the present invention.
- FIGS. 5A to 5C are explanatory diagrams showing the movement of the yarn ends Y when the yarn supplying bobbins B pass through the yarn end cutting device 13.
- FIGS. 5A to 5C are explanatory diagrams showing the movement of the yarn ends Y when the yarn supplying bobbins B pass through the yarn end cutting device 13.
- FIGS. 5A to 5C only one yarn supplying bobbin B has been shown in FIGS. 5A to 5C .
- the yarn supplying bobbin B is transported to the downstream side end in the transport direction of the placement path 21 by the yarn supplying bobbin transport device 12 (see FIG. 5A ). Thereafter, the yarn supplying bobbin B slides under its own weight while being guided along the guide path 51 (see FIG. 5B ). While the yarn supplying bobbin B is moving along the guide path 51, the yarn end Y extending from the yarn supplying bobbin B is sucked and captured by the action of the negative pressure supplied via the suction vent 54. Then, the yarn supplying bobbin B moves to the tip end in the guiding direction of the guide path 51 and then falls from the guiding member 31 by its own weight (see a two-dot chain line in FIG. 5B ).
- a middle part of the yarn end Y is guided to the proximal end side in the guiding direction by one of the yarn end guide slits 55, and this yarn end Y enters the tip end on the proximal end side in the guiding direction of this yarn end guide slit 55 (see a two-dot chain arrow in FIG. 5C ).
- the yarn end Y that has entered the tip end on the proximal end side in the guiding direction of the yarn end guide slit 55 is cut by the cutting member 32 (see FIG. 4B ).
- the tip end side part of the cut yarn end Y is removed by suction via the communication path 76 (see FIG. 4C ).
- the supply of the yarn supplying bobbins B to the yarn end cutting device 13 is not always continuous. For example, if the supply of yarn supplying bobbins B to the yarn supplying bobbin transport device 12 is temporarily interrupted, the supply of yarn supplying bobbins B to the yarn end cutting device 13 is also temporarily interrupted. If the supply of the yarn supplying bobbins B is interrupted but the negative pressure is continuously generated by the suction source 6, the suction source 6 consumes power wastefully. On the other hand, for example, if the power supply of the suction source 6 is turned on/off depending on whether the yarn supplying bobbins B are supplied, it takes time and effort, and there is a possibility that the production efficiency may be reduced. Therefore, in order to easily reduce the power consumption of the suction source 6 to which the yarn end cutting device 13 is connected, the yarn end cutting device 13 has an opening/closing member 80 described later.
- FIG. 6A is a front view of the opening/closing member 80 and its surrounding structure.
- FIG. 6B is a cross-sectional view along a line VI(b)-VI(b) shown in FIG. 6A .
- the yarn end cutting device 13 includes the opening/closing member 80.
- the opening/closing member 80 is capable of opening and closing the flexible hose 72 that is a part of the connecting member described above.
- the opening/closing member 80 is arranged in front of the housing 41 of the yarn supplying bobbin aligning device 14.
- the opening/closing member 80 includes a casing 81, a shutter 82, and a shutter moving mechanism 83.
- the casing 81 is a member in which a sealed space is formed.
- the flexible hose 72 is connected to the casing 81. More specifically, one end of a first flexible hose 84, which is provided on the yarn end cutting device 13 side, is connected to a front end of the casing 81. One end of a second flexible hose 85, which is provided on the suction source 6 side, is connected to a back end of the casing 81.
- the shutter 82 is a plate-like member arranged inside the casing 81.
- the shutter 82 functions to open and close an opening 84a on one end side of the first flexible hose 84, for example.
- a surface area of an end face of the shutter 82 is larger than a surface area of the opening 84a.
- the shutter 82 is driven to move by the shutter moving mechanism 83.
- the shutter moving mechanism 83 is a mechanism that switches the positions of the shutter 82.
- the shutter moving mechanism 83 is, for example, a ball screw mechanism having a screw shaft 86 extending in the up-down direction and a nut 87 screwed to the screw shaft 86.
- the structure of the shutter moving mechanism 83 is not limited to the one mentioned here.
- the shutter 82 is fixed to the nut 87.
- the screw shaft 86 is rotationally driven by a motor 88.
- the motor 88 is driven and controlled by the control device 15.
- the shutter 82 is movable between an open position (see a solid line in FIG. 6B ) at which the opening 84a of the first flexible hose 84 is completely open, and a closed position (see a two-dot chain line in FIG. 6B ) at which the opening 84a is completely covered and closed by the shutter 82. Also, the shutter 82 can be moved to, for example, a half-open position (see a one-dot chain line in FIG. 6B ) at which the opening 84a is only half-opened. As described above, the opening/closing member 80 is capable of adjusting an opening degree of the first flexible hose 84.
- the negative pressure is supplied by the suction source 6 via the suction vent 54 of the guiding member 31 (see FIG. 4A , etc.) (that is, the suction member is in a supply state).
- the fan 6b is rotated by the motor 6a of the suction source 6 so that the air near the suction vent 54 of the guiding member 31 is discharged through the internal space 74 of the connecting member 71 and the internal space 75 of the flexible hose 72 resulting in the supply of the negative pressure to the space near the suction vent 54.
- the shutter 82 is in the closed position, no negative pressure is supplied through the suction vent 54 (that is, the suction member is in a non-supply state).
- FIGS. 7A and 7B are explanatory views showing a swinging mechanism 90 that swings the guiding member 31.
- the yarn supplying bobbins B are transported by the yarn supplying bobbin transport device 12 in an overlapping and piled state (see FIG. 7A ). For this reason, for example, the yarn supplying bobbins B may not move as desired on the guide path 51. Also, the yarn ends Y may not be sucked because the yarn ends Y may be sandwiched between the yarn supplying bobbins B. To address this issue, the yarn end cutting device 13 further includes the swinging mechanism 90.
- the swinging mechanism 90 includes the support members 56 and air cylinders 93 (a first swing drive member according to the present invention).
- the support member 56 is, for example, an L-shaped member (see FIG. 3 ). As one specific example, a part of the support member 56 extending in the up-down direction is fixed to the housing 41 of the yarn supplying bobbin aligning device 14 (see FIG. 3 ). A part extending in the left-right direction of the support member 56 is a swing axis that supports the side member 53 of the guiding member 31 so as to be swingable (see FIGS. 4A to 4C ). A back end of the side members 53 is supported from below by the support members 57 (see FIG. 4A , etc.). As a specific example, as shown in FIG. 4A and FIGS.
- a right end part of the support member 57 on the left (support member 91) is notched to form an upward-facing surface 91a.
- a left end part of the support member 57 on the right (support member 92) is notched to form an upward-facing surface 92a.
- the back ends of the side members 53 of the guiding member 31 are supported by the support members 91 and 92 when the back ends touch these surfaces 91a and 92a by riding on the surfaces 91a and 92a.
- Each air cylinder 93 has a piston rod 94 that can extend and contract in the substantially up-down direction.
- a tip end of the piston rod 94 is attached to a back end part of the side member 53 of the guiding member 31.
- the air cylinder 93 is connected to a not-shown compressed air source.
- compressed air is supplied to the air cylinder 93 by the compressed air source via a not-shown pipe, the piston rod 94 extends, and when the compressed air is discharged from the air cylinder 93, the piston rod 94 contracts.
- the supply and discharge of compressed air can be switched by a not-shown solenoid valve that can be controlled by the control device 15, for example.
- the guiding member 31 swings in the substantially up-down direction with the support members 56 as the swing axis (see an arrow in FIG. 7B ).
- the yarn supplying bobbins B present on the guide path 51 rock.
- the pile of the yarn supplying bobbins B can be collapsed.
- the control device 15 can temporarily stop the operation of the yarn supplying bobbin transport device 12.
- the guiding member 31 is swinging, falling of the yarn supplying bobbins B through the gap between the placement member 22 of the yarn supplying bobbin transport device 12 and the guiding member 31 of the yarn end cutting device 13 can be prevented.
- the opening/closing member 80 can easily reduce the power consumption of the suction source 6 to which the yarn end cutting device 13 is connected.
- the opening degree of the flexible hose 72 by using the opening/closing member 80, the absolute value of the supplied negative pressure can be changed. Therefore, the load on the suction source 6 can be effectively reduced depending on the yarn type and the like.
- the suction vent 54 is formed in the guiding member 31. For this reason, compared with the case where the suction vent 54 is formed in a member other than the guiding member 31, the increase in the number of components can be suppressed. Moreover, the yarn ends Y extending from the yarn supplying bobbins B that are moving on the guide path 51 can be sucked easily.
- the guiding member 31 is proactively driven to swing by the air cylinders 93. Therefore, even if the yarn supplying bobbins B are transported in the piled state, the yarn supplying bobbins B present on the guide path 51 are rocked whereby the pile of the yarn supplying bobbins B can be collapsed.
- the yarn ends Y of the yarn supplying bobbins B can be sucked in advance through the suction vent 54 arranged on the proximal end side in the guiding direction (that is, upstream side in the transport direction) than the yarn end guide slits 55.
- the middle part of the yarn ends Y can be made to enter at least in the yarn end guide slits 55 that extend the other side in the guiding direction. Therefore, the yarn ends Y that have entered the yarn end guide slits 55 can be surely cut by the cutter 61.
- a yarn supplying bobbin feeding device includes a yarn supplying bobbin transport device that transports a plurality of yarn supplying bobbins on which a yarn has been wound; a yarn supplying bobbin aligning device that aligns the yarn supplying bobbins and that is arranged downstream of the yarn supplying bobbin transport device in a transport direction of the yarn supplying bobbins; and a yarn end cutting device that includes a cutting member for cutting yarn ends extending from the yarn supplying bobbins and that is arranged between the yarn supplying bobbin transport device and the yarn supplying bobbin aligning device in the transport direction.
- the yarn end cutting device includes a suction member having a suction vent connected to a suction source and that sucks the yarn ends by the action of a negative pressure supplied thereto by the suction source via the suction port; a connecting member in which a communication path that connects the suction vent and the suction source is formed; and an opening/closing member capable of switching, by opening and closing at least one of the suction vent and the communication path, the suction member between a supply state in which the negative pressure is supplied via the suction vent and a non-supply state in which the negative pressure is not supplied via the suction vent.
- the yarn ends extending from the yarn supplying bobbins are sucked and captured.
- the load on the suction source is lower than in the supply state, and the suction source consumes less power. Therefore, the power consumption of the suction source to which the yarn end cutting device is connected can be easily reduced by the opening/closing member.
- the opening/closing member is capable of adjusting an opening degree of at least one of the suction vent and the communication path.
- the absolute value of the supplied negative pressure can be changed by adjusting the opening degree of at least one of the suction vent and the communication path by the opening/closing member. Therefore, the load on the suction source can be effectively reduced depending on the yarn type and the like.
- the yarn end cutting device includes a guiding member formed with a guide path for guiding the yarn supplying bobbins to a downstream side in the transport direction, and the suction vent is formed in the guiding member.
- an increase in the number of components can be suppressed as compared to a case in which the suction vent is formed in a member other than the guiding member. Moreover, the yarn ends extending from the yarn supplying bobbins that are moving on the guide path can be sucked easily.
- the yarn end cutting device includes a guiding member formed with a guide path for guiding the yarn supplying bobbins to a downstream side in the transport direction; and a first swing drive member that swings the guiding member.
- the yarn supplying bobbins are transported by the yarn supplying bobbin transport device in an overlapping and piled state, for example, there is a possibility that the yarn supplying bobbins do not move as desired on the guide path. Also, the yarn ends may not be sucked by the suction member because the yarn ends may be sandwiched between the yarn supplying bobbins.
- the guiding member is proactively swung by the first swing drive member. Therefore, even when the yarn supplying bobbins are transported in the overlapping state, the pile of the yarn supplying bobbins can be collapsed by causing the yarn supplying bobbins on the guide path to rock.
- the yarn end cutting device includes a guiding member formed with a guide path for guiding the yarn supplying bobbins to a downstream side in the transport direction; a swing member capable of swinging in a space above the guide path; and a second swing drive member that swings the swing member.
- the swing member can be caused to interfere with the yarn supplying bobbins by swinging the swing member in the space above the guide path. Therefore, even when the yarn supplying bobbins are transported in the overlapping state, the pile of the yarn supplying bobbins on the guide path can be collapsed by the swing member.
- the yarn supplying bobbin aligning device includes a receiving member that opens upward and receives the yarn supplying bobbins
- the yarn end cutting device includes a guiding member that is arranged above the receiving member and formed with a guide path for guiding the yarn supplying bobbins to one side in a predetermined guiding direction that is orthogonal to a vertical direction, a yarn end guide slit that extends at least to other side in the guiding direction is formed at an end of the guiding member on the one side in the guiding direction, the suction vent is arranged on the other side in the guiding direction with respect to the yarn end guide slit, and the cutting member includes a cutter capable of cutting the yarn end that has entered an end portion of the yarn end guide slit on the other side in the guiding direction.
- the yarn supplying bobbins are received by the receiving member of the yarn supplying bobbin aligning device when the yarn supplying bobbins drop by their own weight from the downstream side end (i.e., an end portion on the one side in the guiding direction) of the guiding member in the transport direction. Therefore, before the yarn supplying bobbins fall from the guiding member, the yarn ends can be sucked through the suction vent that is arranged more on the other side in the guiding direction (i.e., the upstream side in the transport direction) than the yarn end guide slit.
- the middle part of the yarn ends can be made to enter at least the yarn end guide slit that extends to the other side in the guiding direction. Therefore, the yarn ends that have entered the yarn end guide slit can be cut surely by the cutter.
- the yarn end cutting device includes a blowing member that is arranged on the one side with respect to the yarn end guide slit in the guiding direction and that blows gas toward at least the other side in the guiding direction toward the guiding member.
- the yarn ends extending from the yarn supplying bobbins can be proactively moved to at least the other side in the guiding direction. Therefore, the yarn ends can be easily inserted into the yarn end guide slit.
- the opening/closing member includes the cutting member, and the cutting member includes a cutter member capable of opening and closing the suction vent and capable of cutting the yarn end when closing the suction vent.
- the opening/closing member simply switches the state of the suction member between the supply state and the non-supply state, if the sucked yarn end entangles with the opening/closing member, the opening/closing member may not operate as desired, also, there is a chance that the opening/closing member malfunctions.
- the opening/closing member also cuts the yarn end. The cut yarn end is sucked and removed by the suction member. As a result, entangling of the yarn ends with the opening/closing member can be prevented, and the occurrence of malfunctioning of the opening/closing member can be suppressed.
- the yarn end cutting device includes a plurality of the cutting members, and each cutting member includes the suction member.
- a suction vent is provided corresponding to each cutting member. Therefore, it is possible to easily suck and capture the yarn end located near the cutting member.
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Abstract
Description
- The present invention relates to a yarn supplying bobbin feeding device that supplies a yarn supplying bobbin on which a yarn has been wound.
- A yarn supplying bobbin feeding device disclosed in
JP 2008-230830 A - Further, although not disclosed in
JP 2008-230830 A - With this configuration, the yarn ends extending from the yarn supplying bobbins can be sucked, captured, and cut. Because the cut yarn ends are removed by suction as it is, the time and effort for collecting the yarn ends is also reduced.
- The supply of the yarn supplying bobbins to the yarn end cutting device is not always continuous. For example, if the supply of yarn supplying bobbins to the vibration feeder is temporarily interrupted, the supply of yarn supplying bobbins to the yarn end cutting device is also temporarily interrupted. If the supply of the yarn supplying bobbins is interrupted but the negative pressure is continuously generated by the suction source, the suction source consumes power wastefully. On the other hand, for example, if the power supply of the suction source is turned on/off depending on whether the yarn supplying bobbin is supplied, it takes time and effort, and there is a possibility that the production efficiency may be reduced.
- In view of the above discussion, one object of the present invention is to easily reduce power consumption of a suction source to which a yarn end cutting device is connected.
- A yarn supplying bobbin feeding device according to one aspect of the present invention includes a yarn supplying bobbin transport device that transports a plurality of yarn supplying bobbins on which a yarn has been wound; a yarn supplying bobbin aligning device that aligns the yarn supplying bobbins and that is arranged downstream of the yarn supplying bobbin transport device in a transport direction of the yarn supplying bobbins; and a yarn end cutting device that includes a cutting member for cutting yarn ends extending from the yarn supplying bobbins and that is arranged between the yarn supplying bobbin transport device and the yarn supplying bobbin aligning device in the transport direction. The yarn end cutting device includes a suction member having a suction vent connected to a suction source and that sucks the yarn ends by the action of a negative pressure supplied thereto by the suction source via the suction vent; a connecting member in which a communication path that connects the suction vent and the suction source is formed; and an opening/closing member capable of switching, by opening and closing at least one of the suction vent and the communication path, the suction member between a supply state in which the negative pressure is supplied via the suction vent and a non-supply state in which the negative pressure is not supplied via the suction vent.
- The above and other objects, features, advantages and technical and industrial significance of this invention will be better understood by reading the following detailed description of presently preferred embodiments of the invention, when considered in connection with the accompanying drawings.
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FIG. 1 is a schematic diagram of a yarn winding equipment including a yarn supplying bobbin feeding device according one embodiment of the present invention. -
FIG. 2 is a side view of the yarn supplying bobbin feeding device. -
FIG. 3 is a perspective view of the yarn supplying bobbin feeding device. -
FIGS. 4A to 4C are explanatory diagrams showing a basic configuration of a yarn end cutting device. -
FIGS. 5A to 5C are explanatory diagrams showing the movement of a yarn end when a yarn supplying bobbin passes through the yarn end cutting device. -
FIGS. 6A and 6B are explanatory diagrams showing an opening/closing member. -
FIGS. 7A and 7B are explanatory views showing a mechanism for swinging a guiding member. -
FIGS. 8A and 8B are plan views of a yarn end cutting device according to a modification. -
FIGS. 9A and 9B are side views of the yarn end cutting device according to the modification. -
FIG. 10 is a plan view of a yarn end cutting device according to another modification. -
FIGS. 11A and 11B are front views of a yarn end cutting device according to still another modification. -
FIGS. 12A and 12B are front views of a yarn end cutting device according to yet another modification. -
FIG. 13 is a plan view of a yarn end cutting device according to still another modification. -
FIG. 14 is a plan view of a yarn end cutting device according to yet another modification. - An exemplary embodiment of the present invention will be described below. For convenience of explanation, the up-down direction in
FIG. 1 is defined as a vertical direction (up-down direction) in which the gravity acts. A left-right direction inFIG. 2 is defined as a front-back direction. A direction orthogonal to both the up-down direction and the front-back direction is defined as a left-right direction. - First, an outline of a
yarn winding equipment 1 that includes a yarn supplyingbobbin feeding device 2 according to the present embodiment will be described with reference toFIG. 1 . As shown inFIG. 1 , theyarn winding equipment 1 includes the yarn supplyingbobbin feeding device 2, a yarn supplying bobbin processing device 3, a yarn winding machine 4, and amain controller 5. - The yarn supplying
bobbin feeding device 2 transports yarn supplying bobbins B and supplies them to the yarn supplying bobbin processing device 3. A yarn has been wound on each of the yarn supplying bobbins B by a not-shown spinning machine that spins the yarn. The yarn supplying bobbin processing device 3 performs a predetermined process so that the yarn wound on the yarn supplying bobbin B can be smoothly unwound by the yarn winding machine 4. The yarn winding machine 4 includes a plurality of windingunits 4a. Each windingunit 4a unwinds the yarn from a yarn supplying bobbin B, and forms a package by winding the yarn on a winding yarn supplying bobbin while removing any yarn defects in the yarn. Themain controller 5 controls the entireyarn winding equipment 1 in an integrated manner. - The
yarn winding equipment 1 includes asuction source 6 for sucking a yarn end Y (seeFIG. 3 ) extending from the yarn supplying bobbin B fed by the yarn supplying bobbin feeding device 2 (seeFIG. 3 , details will be given later). - A configuration of the yarn supplying
bobbin feeding device 2 will be described below with reference toFIGS. 2 and3 .FIG. 2 is a side view of the yarn supplyingbobbin feeding device 2.FIG. 3 is a perspective view of the yarn supplyingbobbin feeding device 2. Continuous-line arrows shown inFIG. 2 indicate a transport direction in which the yarn supplying bobbins B are transported. As shown inFIGS. 2 and3 , the yarn supplyingbobbin feeding device 2 includes a yarn supplyingbobbin receiving box 11, a yarn supplyingbobbin transport device 12, a yarnend cutting device 13, a yarn supplyingbobbin aligning device 14, and acontrol device 15. - The yarn supplying
bobbin receiving box 11 is a container in which the yarn supplying bobbins B on which the yarn has been wound are put. The yarn supplyingbobbin receiving box 11 is arranged at a back end of the yarn supplyingbobbin feeding device 2. The yarn supplyingbobbin receiving box 11 is movable between an initial position thereof (see a box shown with a solid line) and a supply position thereof (see a box shown with a two-dot chain line). Ahydraulic cylinder 11a, for example, is used to move the yarn supplyingbobbin receiving box 11. The yarn supplying bobbins B are put into the yarn supplyingbobbin receiving box 11 manually by an operator or by a not-shown yarn supplying bobbin introducing device. The yarn supplying bobbins B fall on the yarn supplyingbobbin transport device 12 by their own weight when the yarn supplyingbobbin receiving box 11 moves from the initial position to the supply position. - The yarn supplying
bobbin transport device 12 is a device that transports the yarn supplying bobbins B supplied from the yarn supplyingbobbin receiving box 11. The yarn supplyingbobbin transport device 12 is arranged, in the transport direction of the yarn supplying bobbins B, between the yarn supplyingbobbin receiving box 11 and the yarnend cutting device 13. The yarn supplyingbobbin transport device 12 includes aplacement member 22 in which is formed aplacement path 21 on which the yarn supplying bobbins B can be placed, and avibration motor 23 that vibrates theplacement member 22. In the yarn supplyingbobbin transport device 12, the yarn supplying bobbins B placed on theplacement path 21 can be transported forward when thevibration motor 23 vibrates theplacement member 22. Typically, the yarn supplying bobbins B supplied from the yarn supplyingbobbin receiving box 11 are transported on theplacement path 21 in a piled state. Therefore, the yarn ends Y may be pulled out for a considerable length from the surface of the yarn supplying bobbins B, or the yarn ends Y of multiple yarn supplying bobbins B may get entangled with each other. - The yarn
end cutting device 13 is a device that cuts the yarn ends Y extending from the yarn supplying bobbins B. The yarnend cutting device 13 is arranged between the yarn supplyingbobbin transport device 12 and the yarn supplyingbobbin aligning device 14 in the transport direction. The yarnend cutting device 13 includes a guidingmember 31 that guides the yarn supplying bobbins B forward and downward. A more detailed configuration of the yarnend cutting device 13 will be described later. - The yarn supplying
bobbin aligning device 14 is a device that aligns the yarn supplying bobbins B and transports them one by one to the downstream side in the transport direction (toward the yarn supplying bobbin processing device 3). The yarn supplyingbobbin aligning device 14 is arranged more downstream than the yarn supplyingbobbin transport device 12 and the yarnend cutting device 13 in the transport direction. The yarn supplyingbobbin aligning device 14 includes ahousing 41, a bowl member 42 (a receiving member according to the present invention) arranged inside thehousing 41 but below the guidingmember 31 of the yarnend cutting device 13, and a vibratingsolenoid 43 capable of vibrating thebowl member 42. Thebowl member 42 is open from above. Aspiral passage 44 in which the yarn supplying bobbins B are placed in a laying state is formed in thebowl member 42. In the yarn supplyingbobbin aligning device 14, when the vibratingsolenoid 43 vibrates thebowl member 42, the yarn supplying bobbins B are transported along thepassage 44. - The
control device 15 is electrically connected to thehydraulic cylinder 11a, thevibration motor 23, the vibratingsolenoid 43, and the like. Thecontrol device 15 performs drive control of these parts. - A more detailed configuration of the yarn
end cutting device 13 will be described below with reference toFIGS. 3 to 4C .FIG. 4A is a plan view of the guidingmember 31.FIG. 4B is an explanatory view showing members and the like arranged below the guidingmember 31.FIG. 4C is a side view of the yarnend cutting device 13. - The yarn
end cutting device 13 is a device that cuts the yarn ends Y extending from the yarn supplying bobbins B while guiding the yarn supplying bobbins B transported by the yarn supplyingbobbin transport device 12 to the downstream side in the transport direction (toward the yarn supplying bobbin aligning device 14). The yarnend cutting device 13 includes the guiding member 31 (seeFIG. 3 andFIGS. 4A to 4C ) that guides the yarn supplying bobbins B, and a plurality of cuttingmembers 32 capable of cutting the yarn ends Y (seeFIG. 4B ). As will be described later, the yarnend cutting device 13 is capable of sucking and capturing the yarn ends Y. - The guiding member 31 (a suction member according to the present invention) is a member formed by sheet metal processing a metal plate, for example. The guiding
member 31 is arranged above thebowl member 42 of the yarn supplying bobbin aligning device 14 (seeFIG. 3 ). The guidingmember 31 has abottom part 52 in which aplanar guide path 51 extending downward and forward is formed, and twoside members 53 extending upward from both the left and right ends of thebottom part 52. Theguide path 51 is inclined more downward as one goes more toward the front. A direction in which theguide path 51 extends, that is, a direction in which the yarn supplying bobbins B are guided along theguide path 51, is defined as a guiding direction (seeFIG. 4C ). The guiding direction intersects the up-down direction. In the guiding direction, the yarn supplyingbobbin transport device 12 side is defined as a proximal end side (other side according to the present invention), and a side opposite to the proximal end side is defined as a distal end side (one side according to the present invention). The left-right direction is defined as a width direction of theguide path 51. Theguide path 51 need not be necessarily flat but can be curved. - As shown in
FIGS. 3 and4A , asuction vent 54 that passes through thebottom part 52 in the up-down direction and extends in the left-right direction is formed in the middle of thebottom part 52 in the guiding direction. In a tip end part of thebottom part 52 in the guiding direction, a plurality of yarn end guide slits 55 that extends toward a proximal end side thereof at least in the guiding direction is formed. In other words, thesuction vent 54 is arranged closer to the proximal end side than the yarn end guide slits 55 in the guiding direction. The yarn end guide slits 55 are formed side by side in the width direction. Each yarn end guide slit 55 is curved such that the width thereof narrows as one goes from the tip end part of thebottom part 52 toward the proximal end side thereof in the guiding direction. The yarn end guide slits 55 need not necessarily be curved, but can extend linearly, for example. Further, the yarn end guide slits 55 need not necessarily become narrower as one goes from the tip end part toward the proximal end side in the guiding direction of thebottom part 52. - The
side members 53 of the guidingmember 31 function to prevent the yarn supplying bobbins B, which are traveling on theguide path 51, from falling off theguide path 51. A front end of each of theside members 53 is supported so as to be swingable by an L-shapedsupport member 56, for example. A back end of each of theside members 53 is supported from below by, for example, a plate-like support member 57 (details will be given later). - As shown in
FIG. 4B , the cuttingmembers 32 are arranged below thebottom part 52 of the guidingmember 31. The cuttingmember 32 includes a scissors-like cutter 61 arranged immediately below a tip end on the proximal end side in the guiding direction of the yarn end guide slit 55, and anair cylinder 62 that operates thecutter 61. Theair cylinder 62 is controlled by thecontrol device 15. Thecutter 61 is driven by theair cylinder 62 when cutting the yarn ends Y that have entered the tip end on the proximal end side in the guiding direction of the yarn end guide slit 55. Theair cylinder 62 that drives thecutter 61 can be replaced with, for example, a motor. - As described above, the
yarn winding equipment 1 is provided with the suction source 6 (seeFIG. 3 ). Thesuction source 6 includes anelectric motor 6a and afan 6b that is rotationally driven by themotor 6a. Themotor 6a is driven and controlled by themain controller 5, for example, so as to rotate at a constant rotational speed. Thesuction vent 54 of the guidingmember 31 is connected to thesuction source 6 via a connectingmember 71 and aflexible hose 72. The connectingmember 71 and theflexible hose 72 will be described in detail later. Thus, the yarnend cutting device 13 can suck the yarn ends Y extending from the yarn supplying bobbins B via thesuction vent 54. - The connecting
member 71 is a hollow member attached to a lower surface of thebottom part 52 of the guidingmember 31. The connectingmember 71 has anopening 73 that has a shape similar to thesuction vent 54 of the guidingmember 31. Aninternal space 74 of the connectingmember 71 communicates with thesuction vent 54 via theopening 73. The connectingmember 71 is connected to theflexible hose 72. Theflexible hose 72 is, for example, a bendable hose having a bellows structure. One end of theflexible hose 72 is connected to the connectingmember 71, and the other end is connected to thesuction source 6. For example, theflexible hose 72 is routed inside thehousing 41 of the yarn supplyingbobbin aligning device 14, and extends from a side surface of thehousing 41 to the outside of the housing 41 (seeFIG. 3 ). Acommunication path 76 that connects thesuction source 6 and thesuction vent 54 is formed by theinternal space 74 of the connectingmember 71 and aninternal space 75 of theflexible hose 72. With this structure, a negative pressure is supplied in a space near thesuction vent 54 via thesuction vent 54. The connectingmember 71 and theflexible hose 72 correspond to a connecting member according to the present invention. - A yarn end Y cutting operation performed by the yarn
end cutting device 13 will be described with reference toFIGS. 5A to 5C. FIGS. 5A to 5C are explanatory diagrams showing the movement of the yarn ends Y when the yarn supplying bobbins B pass through the yarnend cutting device 13. However, in order to avoid complication of the drawings, only one yarn supplying bobbin B has been shown inFIGS. 5A to 5C . - First, the yarn supplying bobbin B is transported to the downstream side end in the transport direction of the
placement path 21 by the yarn supplying bobbin transport device 12 (seeFIG. 5A ). Thereafter, the yarn supplying bobbin B slides under its own weight while being guided along the guide path 51 (seeFIG. 5B ). While the yarn supplying bobbin B is moving along theguide path 51, the yarn end Y extending from the yarn supplying bobbin B is sucked and captured by the action of the negative pressure supplied via thesuction vent 54. Then, the yarn supplying bobbin B moves to the tip end in the guiding direction of theguide path 51 and then falls from the guidingmember 31 by its own weight (see a two-dot chain line inFIG. 5B ). In this process, a middle part of the yarn end Y is guided to the proximal end side in the guiding direction by one of the yarn end guide slits 55, and this yarn end Y enters the tip end on the proximal end side in the guiding direction of this yarn end guide slit 55 (see a two-dot chain arrow inFIG. 5C ). The yarn end Y that has entered the tip end on the proximal end side in the guiding direction of the yarn end guide slit 55 is cut by the cutting member 32 (seeFIG. 4B ). The tip end side part of the cut yarn end Y is removed by suction via the communication path 76 (seeFIG. 4C ). - The supply of the yarn supplying bobbins B to the yarn
end cutting device 13 is not always continuous. For example, if the supply of yarn supplying bobbins B to the yarn supplyingbobbin transport device 12 is temporarily interrupted, the supply of yarn supplying bobbins B to the yarnend cutting device 13 is also temporarily interrupted. If the supply of the yarn supplying bobbins B is interrupted but the negative pressure is continuously generated by thesuction source 6, thesuction source 6 consumes power wastefully. On the other hand, for example, if the power supply of thesuction source 6 is turned on/off depending on whether the yarn supplying bobbins B are supplied, it takes time and effort, and there is a possibility that the production efficiency may be reduced. Therefore, in order to easily reduce the power consumption of thesuction source 6 to which the yarnend cutting device 13 is connected, the yarnend cutting device 13 has an opening/closingmember 80 described later. - A structure of the opening/closing
member 80 will be described with reference toFIG. 3 andFIGS. 6A and 6B. FIG. 6A is a front view of the opening/closingmember 80 and its surrounding structure.FIG. 6B is a cross-sectional view along a line VI(b)-VI(b) shown inFIG. 6A . - As described above, the yarn
end cutting device 13 includes the opening/closingmember 80. In the present embodiment, the opening/closingmember 80 is capable of opening and closing theflexible hose 72 that is a part of the connecting member described above. As an example, as shown inFIG. 6A , the opening/closingmember 80 is arranged in front of thehousing 41 of the yarn supplyingbobbin aligning device 14. As shown inFIGS. 6A and 6B , the opening/closingmember 80 includes acasing 81, ashutter 82, and ashutter moving mechanism 83. - The
casing 81 is a member in which a sealed space is formed. Theflexible hose 72 is connected to thecasing 81. More specifically, one end of a firstflexible hose 84, which is provided on the yarnend cutting device 13 side, is connected to a front end of thecasing 81. One end of a secondflexible hose 85, which is provided on thesuction source 6 side, is connected to a back end of thecasing 81. - The
shutter 82 is a plate-like member arranged inside thecasing 81. Theshutter 82 functions to open and close anopening 84a on one end side of the firstflexible hose 84, for example. A surface area of an end face of theshutter 82 is larger than a surface area of theopening 84a. Theshutter 82 is driven to move by theshutter moving mechanism 83. - The
shutter moving mechanism 83 is a mechanism that switches the positions of theshutter 82. Theshutter moving mechanism 83 is, for example, a ball screw mechanism having ascrew shaft 86 extending in the up-down direction and anut 87 screwed to thescrew shaft 86. However, the structure of theshutter moving mechanism 83 is not limited to the one mentioned here. For example, it is possible to employ a revolving shutter that opens and closes by revolving around a rotation axis. Theshutter 82 is fixed to thenut 87. Thescrew shaft 86 is rotationally driven by amotor 88. Themotor 88 is driven and controlled by thecontrol device 15. When themotor 88 rotationally drives thescrew shaft 86, thenut 87 and theshutter 82 move along an axial direction of thescrew shaft 86. As a result, theshutter 82 is movable between an open position (see a solid line inFIG. 6B ) at which theopening 84a of the firstflexible hose 84 is completely open, and a closed position (see a two-dot chain line inFIG. 6B ) at which theopening 84a is completely covered and closed by theshutter 82. Also, theshutter 82 can be moved to, for example, a half-open position (see a one-dot chain line inFIG. 6B ) at which theopening 84a is only half-opened. As described above, the opening/closingmember 80 is capable of adjusting an opening degree of the firstflexible hose 84. - When the
shutter 82 is in the open position, the negative pressure is supplied by thesuction source 6 via thesuction vent 54 of the guiding member 31 (seeFIG. 4A , etc.) (that is, the suction member is in a supply state). At this time, thefan 6b is rotated by themotor 6a of thesuction source 6 so that the air near thesuction vent 54 of the guidingmember 31 is discharged through theinternal space 74 of the connectingmember 71 and theinternal space 75 of theflexible hose 72 resulting in the supply of the negative pressure to the space near thesuction vent 54. On the other hand, when theshutter 82 is in the closed position, no negative pressure is supplied through the suction vent 54 (that is, the suction member is in a non-supply state). In the supply state, a lot of air is continuously discharged, while in the non-supply state, no air is discharged. Here, as described above, themotor 6a is controlled to rotate thefan 6b at a constant rotational speed. For this reason, in the supply state, in which a lot of air need to be continuously discharged, the load on themotor 6a is relatively large. Conversely, in the non-supply state, the load on themotor 6a is relatively small. Therefore, in the non-supply state, the power consumption of themotor 6a is lower than that in the supply state. - Next, a configuration that further improves the yarn
end cutting device 13 will be described by mainly usingFIGS. 7A and 7B. FIGS. 7A and 7B are explanatory views showing a swingingmechanism 90 that swings the guidingmember 31. - As described above, the yarn supplying bobbins B are transported by the yarn supplying
bobbin transport device 12 in an overlapping and piled state (seeFIG. 7A ). For this reason, for example, the yarn supplying bobbins B may not move as desired on theguide path 51. Also, the yarn ends Y may not be sucked because the yarn ends Y may be sandwiched between the yarn supplying bobbins B. To address this issue, the yarnend cutting device 13 further includes the swingingmechanism 90. The swingingmechanism 90 includes thesupport members 56 and air cylinders 93 (a first swing drive member according to the present invention). - The
support member 56 is, for example, an L-shaped member (seeFIG. 3 ). As one specific example, a part of thesupport member 56 extending in the up-down direction is fixed to thehousing 41 of the yarn supplying bobbin aligning device 14 (seeFIG. 3 ). A part extending in the left-right direction of thesupport member 56 is a swing axis that supports theside member 53 of the guidingmember 31 so as to be swingable (seeFIGS. 4A to 4C ). A back end of theside members 53 is supported from below by the support members 57 (seeFIG. 4A , etc.). As a specific example, as shown inFIG. 4A andFIGS. 5A to 5C , a right end part of thesupport member 57 on the left (support member 91) is notched to form an upward-facingsurface 91a. Further, a left end part of thesupport member 57 on the right (support member 92) is notched to form an upward-facingsurface 92a. The back ends of theside members 53 of the guidingmember 31 are supported by thesupport members surfaces surfaces - Each
air cylinder 93 has apiston rod 94 that can extend and contract in the substantially up-down direction. A tip end of thepiston rod 94 is attached to a back end part of theside member 53 of the guidingmember 31. Theair cylinder 93 is connected to a not-shown compressed air source. When compressed air is supplied to theair cylinder 93 by the compressed air source via a not-shown pipe, thepiston rod 94 extends, and when the compressed air is discharged from theair cylinder 93, thepiston rod 94 contracts. The supply and discharge of compressed air can be switched by a not-shown solenoid valve that can be controlled by thecontrol device 15, for example. - When the
air cylinders 93 operate and thepiston rods 94 thereof extend and contract, the guidingmember 31 swings in the substantially up-down direction with thesupport members 56 as the swing axis (see an arrow inFIG. 7B ). As a result, the yarn supplying bobbins B present on theguide path 51 rock. As a result, the pile of the yarn supplying bobbins B can be collapsed. When swinging the guidingmember 31, the control device 15 (seeFIG. 2 ) can temporarily stop the operation of the yarn supplyingbobbin transport device 12. As a result, when the guidingmember 31 is swinging, falling of the yarn supplying bobbins B through the gap between theplacement member 22 of the yarn supplyingbobbin transport device 12 and the guidingmember 31 of the yarnend cutting device 13 can be prevented. - As described above, when no negative pressure is supplied (non-supply state), the load on the
suction source 6 is lower than when the negative pressure is supplied (supply state), and thesuction source 6 can be operated with lower power. Accordingly, the opening/closingmember 80 can easily reduce the power consumption of thesuction source 6 to which the yarnend cutting device 13 is connected. - Further, by adjusting the opening degree of the
flexible hose 72 by using the opening/closingmember 80, the absolute value of the supplied negative pressure can be changed. Therefore, the load on thesuction source 6 can be effectively reduced depending on the yarn type and the like. - Furthermore, the
suction vent 54 is formed in the guidingmember 31. For this reason, compared with the case where thesuction vent 54 is formed in a member other than the guidingmember 31, the increase in the number of components can be suppressed. Moreover, the yarn ends Y extending from the yarn supplying bobbins B that are moving on theguide path 51 can be sucked easily. - Further, the guiding
member 31 is proactively driven to swing by theair cylinders 93. Therefore, even if the yarn supplying bobbins B are transported in the piled state, the yarn supplying bobbins B present on theguide path 51 are rocked whereby the pile of the yarn supplying bobbins B can be collapsed. - Furthermore, before the yarn supplying bobbins B fall from the guiding
member 31, the yarn ends Y of the yarn supplying bobbins B can be sucked in advance through thesuction vent 54 arranged on the proximal end side in the guiding direction (that is, upstream side in the transport direction) than the yarn end guide slits 55. Thereby, when the yarn supplying bobbins B fall from the guidingmember 31, the middle part of the yarn ends Y can be made to enter at least in the yarn end guide slits 55 that extend the other side in the guiding direction. Therefore, the yarn ends Y that have entered the yarn end guide slits 55 can be surely cut by thecutter 61. - Modification examples in which the above-described embodiments are modified will be described below. However, the parts having the same or similar configuration as the above-mentioned embodiments are denoted by the same reference numerals and description thereof has been omitted as appropriate.
- (1) In the above-described embodiments, the opening/closing member 80 (see
FIGS. 6A and 6B ) can adjust the opening degree of thecommunication path 76, but the structure is not limited thereto. The opening/closingmember 80 may simply be able to open and close thecommunication path 76. - (2) The yarn
end cutting device 13 can have a below-describedswinging mechanism 100 that causes the pile of the yarn supplying bobbins B transported by the yarn supplyingbobbin transport device 12 in an overlapping state to collapse. Hereinafter, this configuration will be explained with reference toFIGS. 8A and 8B andFIGS. 9A and 9B . Theswinging mechanism 100 includes a plate member 101 (a swing member according to the present invention) and air cylinders 102 (a second swing drive member according to the present invention). First, as shown inFIG. 8A , agap 105 that extends in the left-right direction is formed between arear end 103 of thebottom part 52 of the guidingmember 31 and afront end 104 of theplacement member 22 of the yarn supplyingbobbin transport device 12. Moreover, as shown inFIG. 8B andFIGS. 9A and 9B , theplate member 101 extends in the up-down direction and the left-right direction, and is capable of passing through thegap 105. For example,support members 106 are attached to the lower ends of the left and right ends of theplate member 101. Eachsupport member 106 is attached to apiston rod 107 of thecorresponding air cylinder 102. Theair cylinder 102 functions to extend and contract thepiston rod 107 in the up-down direction. Accordingly, theplate member 101 can be swung in the up-down direction by using theair cylinders 102. In other words, theplate member 101 can swing in a space above theguide path 51. Here, the space above theguide path 51 is not limited to the space directly above theguide path 51, but includes the space directly above thegap 105 described above. Theplate member 101 can be caused to interfere with the yarn supplying bobbins B by swinging theplate member 101 in the space above theguide path 51. Therefore, even when a plurality of yarn supplying bobbins B is transported in the piled state (seeFIG. 9A ), the pile of the yarn supplying bobbins B on theguide path 51 can be collapsed by the plate member 101 (seeFIG. 9B ). - (3) The yarn
end cutting device 13 may include, in addition to theswinging mechanism 100 or instead of theswinging mechanism 100, a swinging mechanism 110 described below, for example. As shown inFIG. 10 , the swinging mechanism 110 can include, instead of theplate member 101 described above, arod member 111 that can swing on theguide path 51 and amotor 112 that drives therod member 111 to swing. Therod member 111 can swing (see an arrow inFIG. 10 ), for example, with aswing shaft 113 arranged on the front side than the guidingmember 31 as a swing center. A tip end of therod member 111 can be arranged so as to be swingable in the space above theguide path 51. In this configuration, therod member 111 corresponds to the swing member according to the present invention. Themotor 112 corresponds to the second swing drive member according to the present invention. In this configuration, the gap 105 (seeFIG. 8A , etc.) need not be formed. - (4) In the above-described embodiments, the guiding
member 31 of the yarnend cutting device 13 is supported from below by thesupport members 57, but the configuration is not limited thereto. For example, the guidingmember 31 and thesupport members 57 may be fixed to each other, and thesupport members 57 may be supported from below by thehousing 41 of the yarn supplyingbobbin aligning device 14. Alternatively, the guidingmember 31 and thesupport members 57 may be integrated and formed as one member. That is, theair cylinders 93 can swing both the guidingmember 31 and thesupport members 57 integrally. - (5) In the above-described embodiments, the guiding
member 31 of the yarnend cutting device 13 is swingable, but the configuration is not limited thereto. The guidingmember 31 need not necessarily be swingable. - (6) In the above-described embodiments, the opening/closing
member 80 opens and closes the firstflexible hose 84; however, the present invention is not limited to this configuration. The opening/closingmember 80 can open and close thecommunication path 76 at some other location. Alternatively, in addition to or instead of the opening/closingmember 80, as shown inFIGS. 11A and 11B , an opening/closingmember 120 that opens and closes thesuction vent 54 of the guidingmember 31 can be provided. The opening/closingmember 120 has an opening/closing part 121 that extends in the left-right direction and that opens and closes thesuction vent 54. The opening/closing part 121 is arranged as explained below, for example. That is, a throughhole 53a penetrating in the left-right direction and extending in the front-back direction can be formed in a back side portion of each of theside members 53 on both the left and right sides of the guidingmember 31. The opening/closing part 121 extends in the left-right direction and is inserted into the two throughholes 53a. The left and right ends of the opening/closing part 121 are supported by, for example, twoair cylinders 122 so as to be movable along the throughholes 53a. As a result, the opening/closing part 121 can open and close thesuction vent 54. That is, the opening/closing part 121 is capable of moving between an open position at which thesuction vent 54 is open (seeFIG. 11A ) and a closed position at which thesuction vent 54 is closed (seeFIG. 11B ). Instead of theair cylinders 122, for example, a typical ball screw mechanism may be provided. That is, the opening degree of thesuction vent 54 can be adjusted by adjusting the position of the opening/closing part 121. - (7) In the above-described embodiments, the opening/closing
member 80 only opens and closes thesuction vent 54 and/or thecommunication path 76, but the configuration is not limited thereto. For example, the yarn ends Y can be cut by an opening/closingmember 130 as shown inFIGS. 12A and 12B . In this configuration, the opening/closingmember 130 corresponds to the cutting members according to the present invention. The opening/closingmember 130 has an opening/closing part 131 (a cutter member according to the present invention) that extends in the left-right direction and is similar in function to the opening/closing part 121 described above. Regarding a difference between the opening/closing part 121 and the opening/closing part 131, the opening/closing part 131 is formed with ablade 132 extending in the left-right direction. The left and right ends of the opening/closing part 131 are supported by the twoair cylinders 122 described above, for example, so as to be movable along the throughholes 53a. As a result, the opening/closing part 131 is movable between an open position at which thesuction vent 54 is open (seeFIG. 12A ) and a closed position at which thesuction vent 54 is closed (seeFIG. 12B ). Furthermore, the opening/closing part 131 can cut the yarn ends Y by theblade 132 when thesuction vent 54 is closed. In this way, the yarn ends Y can also be cut by the opening/closingmember 130. The tip ends of the cut yarn ends Y are removed by suction via thecommunication path 76 as they are. As a result, the yarn ends Y can be prevented from being entangled with the opening/closingmember 130, so that the opening/closing failure of the opening/closingmember 130 can be suppressed. Moreover, because the yarn ends Y can be cut by the opening/closingmember 130, the above-described cutting members 32 (seeFIG. 4B ) may not be provided. Furthermore, the yarn end guide slits 55 need not be formed on the guidingmember 31. Accordingly, the size of the guidingmember 31 in the guiding direction can be reduced. - (8) The yarn
end cutting device 13 can include a member that blows gas on the yarn ends Y in order to make the yarn ends Y extending from the yarn supplying bobbins B falling from the guidingmember 31 easily enter the yarn end guide slits 55. For example, as shown inFIG. 13 , the yarnend cutting device 13 includes a nozzle member 141 (a blowing member according to the present invention) in front of the guiding member 31 (at least in the guiding direction, at the tip end side than the yarn end guide slits 55). Thenozzle member 141 is arranged such that a tip end thereof faces the guidingmember 31. As shown inFIG. 13 , a plurality of thenozzle members 141 may be arranged side by side in the left-right direction. Alternatively, only onenozzle member 141 may be provided. Thenozzle member 141 is connected to acompressed air source 142. Apipe 143 that connects thenozzle member 141 and thecompressed air source 142 is opened and closed by anelectromagnetic valve 144 that is controlled by thecontrol device 15, for example. As a result, compressed air (gas according to the present invention) can be blown from the tip end of thenozzle member 141 toward the guidingmember 31 at least on the proximal end side in the guiding direction. For this reason, the yarn ends Y extending from the yarn supplying bobbins B can be surely moved to at least toward the proximal end side in the guiding direction by the action of the compressed air. Therefore, the yarn ends Y can be made to enter the yarn end guide slits 55 more easily. Alternatively, instead of thenozzle member 141 and thecompressed air source 142, a not-shown fan and a not-shown motor that rotationally drives the fan may be provided. With this configuration, the air can be blown onto the guidingmember 31. - (9) Each cutting
member 32 of the yarnend cutting device 13 can have a suction member in which a suction vent is formed. For example, as shown inFIG. 14 , asuction vent 151 can be formed near eachcutter 61 of the guidingmember 31, and eachsuction vent 151 is connected to thesuction source 6. In this manner, in the configuration in which thesuction vent 151 is provided corresponding to each cuttingmember 32, the yarn ends Y located near the cuttingmember 32 can be easily sucked and captured. In this configuration, thesuction vent 54 may not be necessary. - (10) In the above-described embodiments, the
suction vent 54 is formed at thebottom part 52 of the guidingmember 31, but the configuration is not limited thereto. For example, a suction vent may be formed in theside members 53. Alternatively, separate member having a suction vent can be provided instead of the guidingmember 31. - (11) In the above-described embodiments, the position of the
cutter 61 of the cuttingmembers 32 is fixed; however, the present invention is not limited to this configuration. For example, as disclosed inJP 2008-230830 A - (12) In the above-described embodiments, the opening/closing
member 80 is controlled by thecontrol device 15, but the configuration is not limited thereto. The operator can manually move the opening/closingmember 80 or the like. - (13) The yarn supplying
bobbin feeding device 2 is not limited to be applied to theyarn winding equipment 1 as described above, but can be applied to various facilities that handle the yarn supplying bobbins B. - A yarn supplying bobbin feeding device according to one aspect of the present invention includes a yarn supplying bobbin transport device that transports a plurality of yarn supplying bobbins on which a yarn has been wound; a yarn supplying bobbin aligning device that aligns the yarn supplying bobbins and that is arranged downstream of the yarn supplying bobbin transport device in a transport direction of the yarn supplying bobbins; and a yarn end cutting device that includes a cutting member for cutting yarn ends extending from the yarn supplying bobbins and that is arranged between the yarn supplying bobbin transport device and the yarn supplying bobbin aligning device in the transport direction. The yarn end cutting device includes a suction member having a suction vent connected to a suction source and that sucks the yarn ends by the action of a negative pressure supplied thereto by the suction source via the suction port; a connecting member in which a communication path that connects the suction vent and the suction source is formed; and an opening/closing member capable of switching, by opening and closing at least one of the suction vent and the communication path, the suction member between a supply state in which the negative pressure is supplied via the suction vent and a non-supply state in which the negative pressure is not supplied via the suction vent.
- In the present invention, when the negative pressure is supplied through the suction vent, the yarn ends extending from the yarn supplying bobbins are sucked and captured. Typically, in the non-supply state, the load on the suction source is lower than in the supply state, and the suction source consumes less power. Therefore, the power consumption of the suction source to which the yarn end cutting device is connected can be easily reduced by the opening/closing member.
- In the above yarn supplying bobbin feeding device, the opening/closing member is capable of adjusting an opening degree of at least one of the suction vent and the communication path.
- For example, in case of a yarn supplying bobbin on which is wound a yarn that does not entangle easily with the yarns of other bobbins or a yarn supplying bobbin on which is wound a yarn that is easy to break when tangled with the yarns of other bobbins the yarn end thereof can be easily sucked and captured as compared to a case in which a yarn supplying bobbin on which is wound a yarn that easily entangles with the yarns of other bobbins is transported. For this reason, when the yarn supplying bobbins or the like on which is wound a yarn that is difficult to entangle are transported, the absolute value of the negative pressure can be reduced to weaken the suction force. In the present invention, the absolute value of the supplied negative pressure can be changed by adjusting the opening degree of at least one of the suction vent and the communication path by the opening/closing member. Therefore, the load on the suction source can be effectively reduced depending on the yarn type and the like.
- In the above yarn supplying bobbin feeding device, the yarn end cutting device includes a guiding member formed with a guide path for guiding the yarn supplying bobbins to a downstream side in the transport direction, and the suction vent is formed in the guiding member.
- In the present invention, an increase in the number of components can be suppressed as compared to a case in which the suction vent is formed in a member other than the guiding member. Moreover, the yarn ends extending from the yarn supplying bobbins that are moving on the guide path can be sucked easily.
- In the above yarn supplying bobbin feeding device, the yarn end cutting device includes a guiding member formed with a guide path for guiding the yarn supplying bobbins to a downstream side in the transport direction; and a first swing drive member that swings the guiding member.
- When the yarn supplying bobbins are transported by the yarn supplying bobbin transport device in an overlapping and piled state, for example, there is a possibility that the yarn supplying bobbins do not move as desired on the guide path. Also, the yarn ends may not be sucked by the suction member because the yarn ends may be sandwiched between the yarn supplying bobbins. However, in the present invention, the guiding member is proactively swung by the first swing drive member. Therefore, even when the yarn supplying bobbins are transported in the overlapping state, the pile of the yarn supplying bobbins can be collapsed by causing the yarn supplying bobbins on the guide path to rock.
- In the above yarn supplying bobbin feeding device, the yarn end cutting device includes a guiding member formed with a guide path for guiding the yarn supplying bobbins to a downstream side in the transport direction; a swing member capable of swinging in a space above the guide path; and a second swing drive member that swings the swing member.
- In the present invention, the swing member can be caused to interfere with the yarn supplying bobbins by swinging the swing member in the space above the guide path. Therefore, even when the yarn supplying bobbins are transported in the overlapping state, the pile of the yarn supplying bobbins on the guide path can be collapsed by the swing member.
- In the above yarn supplying bobbin feeding device, the yarn supplying bobbin aligning device includes a receiving member that opens upward and receives the yarn supplying bobbins, the yarn end cutting device includes a guiding member that is arranged above the receiving member and formed with a guide path for guiding the yarn supplying bobbins to one side in a predetermined guiding direction that is orthogonal to a vertical direction, a yarn end guide slit that extends at least to other side in the guiding direction is formed at an end of the guiding member on the one side in the guiding direction, the suction vent is arranged on the other side in the guiding direction with respect to the yarn end guide slit, and the cutting member includes a cutter capable of cutting the yarn end that has entered an end portion of the yarn end guide slit on the other side in the guiding direction.
- In the present invention, the yarn supplying bobbins are received by the receiving member of the yarn supplying bobbin aligning device when the yarn supplying bobbins drop by their own weight from the downstream side end (i.e., an end portion on the one side in the guiding direction) of the guiding member in the transport direction. Therefore, before the yarn supplying bobbins fall from the guiding member, the yarn ends can be sucked through the suction vent that is arranged more on the other side in the guiding direction (i.e., the upstream side in the transport direction) than the yarn end guide slit. As a result, when the yarn supplying bobbins fall from the guiding member, the middle part of the yarn ends can be made to enter at least the yarn end guide slit that extends to the other side in the guiding direction. Therefore, the yarn ends that have entered the yarn end guide slit can be cut surely by the cutter.
- In the above yarn supplying bobbin feeding device, the yarn end cutting device includes a blowing member that is arranged on the one side with respect to the yarn end guide slit in the guiding direction and that blows gas toward at least the other side in the guiding direction toward the guiding member.
- In the present invention, by blowing the gas toward the guiding member, the yarn ends extending from the yarn supplying bobbins can be proactively moved to at least the other side in the guiding direction. Therefore, the yarn ends can be easily inserted into the yarn end guide slit.
- In the above yarn supplying bobbin feeding device, the opening/closing member includes the cutting member, and the cutting member includes a cutter member capable of opening and closing the suction vent and capable of cutting the yarn end when closing the suction vent.
- In the configuration in which the opening/closing member simply switches the state of the suction member between the supply state and the non-supply state, if the sucked yarn end entangles with the opening/closing member, the opening/closing member may not operate as desired, also, there is a chance that the opening/closing member malfunctions. To address this issue, in the present invention, the opening/closing member also cuts the yarn end. The cut yarn end is sucked and removed by the suction member. As a result, entangling of the yarn ends with the opening/closing member can be prevented, and the occurrence of malfunctioning of the opening/closing member can be suppressed.
- In the above yarn supplying bobbin feeding device, the yarn end cutting device includes a plurality of the cutting members, and each cutting member includes the suction member.
- In the present invention, a suction vent is provided corresponding to each cutting member. Therefore, it is possible to easily suck and capture the yarn end located near the cutting member.
- In the above explanation, the meaning of "a plurality of" also includes "a predetermined number of'.
- Although the invention has been explained with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the scope of the claims.
Claims (9)
- A yarn supplying bobbin feeding device (2) comprising:a yarn supplying bobbin transport device (12) configured to transport a plurality of yarn supplying bobbins (B) on which a yarn has been wound;a yarn supplying bobbin aligning device (14) configured to align the yarn supplying bobbins (B) and that is arranged downstream of the yarn supplying bobbin transport device (12) in a transport direction of the yarn supplying bobbins (B); anda yarn end cutting device (13) that includes a cutting member (32) for cutting yarn ends extending from the yarn supplying bobbins (B) and that is arranged between the yarn supplying bobbin transport device (12) and the yarn supplying bobbin aligning device (14) in the transport direction, whereinthe yarn end cutting device (13) includesa suction member (31) having a suction vent (54) connected to a suction source (6) and configured to suck the yarn ends by the action of a negative pressure supplied thereto by the suction source (6) via the suction vent (54);a connecting member (71, 72) in which a communication path (76) connecting the suction vent (54) and the suction source (6) is formed; andan opening/closing member (80) capable of switching, by opening and closing at least one of the suction vent (54) and the communication path (76), the suction member (31) between a supply state in which the negative pressure is supplied via the suction vent (54) and a non-supply state in which the negative pressure is not supplied via the suction vent (54).
- The yarn supplying bobbin feeding device (2) as claimed in Claim 1, wherein the opening/closing member (80) is capable of adjusting an opening degree of at least one of the suction vent (54) and the communication path (76).
- The yarn supplying bobbin feeding device (2) as claimed in Claim 1 or 2, wherein
the yarn end cutting device (13) includes a guiding member (31) formed with a guide path (51) for guiding the yarn supplying bobbins (B) to a downstream side in the transport direction, and
the suction vent (54) is formed in the guiding member (31). - The yarn supplying bobbin feeding device (2) as claimed in any one of Claims 1 to 3, wherein the yarn end cutting device (13) includes
a guiding member (31) formed with a guide path (51) for guiding the yarn supplying bobbins (B) to a downstream side in the transport direction; and
a first swing drive member (93) configured to swing the guiding member (31). - The yarn supplying bobbin feeding device (2) as claimed in any one of Claims 1 to 4, wherein the yarn end cutting device (13) includes
a or the guiding member (31) formed with a guide path (51) for guiding the yarn supplying bobbins (B) to a downstream side in the transport direction;
a swing member (101, 111) capable of swinging in a space above the guide path (51); and
a second swing drive member (102, 112) configured to swing the swing member (101, 111). - The yarn supplying bobbin feeding device (2) as claimed in any one of Claims 1 to 5, wherein
the yarn supplying bobbin aligning device (14) includes a receiving member (42) that is configured to open upward and to receive the yarn supplying bobbins (B),
the yarn end cutting device (13) includes a or the guiding member (31) that is arranged above the receiving member (42) and formed with a guide path (51) for guiding the yarn supplying bobbins (B) to one side in a predetermined guiding direction that is orthogonal to a vertical direction,
a yarn end guide slit (55) that extends at least to another side in the guiding direction is formed at an end of the guiding member (31) on the one side in the guiding direction,
the suction vent (54) is arranged on the other side in the guiding direction with respect to the yarn end guide slit (55), and
the cutting member (32) includes a cutter (61) capable of cutting the yarn end that has entered an end portion of the yarn end guide slit (55) on the other side in the guiding direction. - The yarn supplying bobbin feeding device (2) as claimed in Claim 6, wherein the yarn end cutting device (13) includes a blowing member (141) that is arranged on the one side with respect to the yarn end guide slit (55) in the guiding direction and that is configured to blow gas toward at least the other side in the guiding direction toward the guiding member (31).
- The yarn supplying bobbin feeding device (2) as claimed in any one of Claims 1 to 5, wherein
the opening/closing member (80) includes the cutting member (32), and
the cutting member (32) includes a cutter member (131) capable of opening and closing the suction vent (54) and capable of cutting the yarn end when closing the suction vent (54). - The yarn supplying bobbin feeding device (2) as claimed in any one of Claims 1 to 8, wherein
the yarn end cutting device (13) includes a plurality of the cutting members (32), and each cutting member (32) includes the suction member (31).
Applications Claiming Priority (1)
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JP2019010950A JP2020117368A (en) | 2019-01-25 | 2019-01-25 | Bobbin supply device |
Publications (2)
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EP3686141A1 true EP3686141A1 (en) | 2020-07-29 |
EP3686141B1 EP3686141B1 (en) | 2022-04-13 |
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EP20150553.4A Active EP3686141B1 (en) | 2019-01-25 | 2020-01-07 | Yarn supplying bobbin feeding device |
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JP (1) | JP2020117368A (en) |
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DE4025003A1 (en) * | 1990-08-07 | 1992-02-13 | Schlafhorst & Co W | COP PREPARATION DEVICE WITH VERTICAL POSITION-CHANGEABLE MEANS CONTROLLED BY SENSOR SIGNALS FOR SUCTIONING THE START OF THE THREAD FROM THE TAPERED WINDING SURFACE OF COPS |
JPH0551859U (en) * | 1991-12-24 | 1993-07-09 | 村田機械株式会社 | Pipe thread feeder |
JPH06191735A (en) * | 1992-03-31 | 1994-07-12 | Murata Mach Ltd | Bobbin supplying device to winding unit |
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JP2012184075A (en) * | 2011-03-04 | 2012-09-27 | Murata Machinery Ltd | Bobbin separator and automatic winder |
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2019
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- 2020-01-17 CN CN202010055370.0A patent/CN111483883B/en active Active
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CN111483883B (en) | 2022-10-04 |
CN111483883A (en) | 2020-08-04 |
EP3686141B1 (en) | 2022-04-13 |
JP2020117368A (en) | 2020-08-06 |
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