JPH0232379B2 - ITOKARYORIKINIOKERUKARABOBINHENOITOKAKESOCHI - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses a yarn false-twisting machine that false-twists melt-spun filament yarn. This invention relates to a device for threading a newly supplied empty bobbin after the threading.

[Conventional technology]

The yarn false twisting machine described above can normally false twist a plurality of yarns at the same time, and therefore has a plurality of winding devices for winding the yarns. These winding devices are arranged on one side of the yarn false twisting machine in a plurality of upper and lower stages and in a plurality of rows on the left and right sides, and the upper and lower stages are usually two to four stages.
When the package wound on such a yarn false twisting machine becomes full, it is doffed manually or by an automatic machine, and a new empty bobbin is set in place of the package and wound. Picking will resume. In order to wind up a new empty bobbin, the bobbin must be threaded, and if this is done manually, the sequence is as follows. In other words, during doffing, the yarn connected to the package cage is cut, and the cut yarn end on the supply side is suctioned by a suitable suction gun. Next, when doffing is completed and the empty bobbin is set, the end of the yarn is pushed into a slit formed on the surface of the empty bobbin and engaged, or engaged with the bobbin by other suitable means. Match. This threading procedure is almost the same even when an automatic machine is used, but when using an automatic machine, there are problems as described below.

[Problem that the invention seeks to solve]

As described above, since a plurality of winding devices are installed, it is difficult to thread all the bobbins using one threading device, and troubles are likely to occur. Although it is possible to install one thread hooking device in each winding device, this would increase the size of the device and is not economical. The present invention aims to solve these problems.

[Means for solving problems]

In the present invention, a trolley is moved left and right along a plurality of winding devices in a yarn false twisting machine, and when doffing the package cages, the trolley cuts all of the yarn to each package in the winding devices in one row above and below. In addition to providing a yarn cutting device, a suction port that sucks the cut yarn on the supply side and a yarn shifting device that engages the yarn sucked by the suction port with an empty bobbin of a winding device and thread the yarn. It is characterized by being able to be raised and lowered.

[Effect]

At the start of the doffing operation, the yarn cutting device operates to cut the yarn connected to each package in the winding devices in one row above and below, or in other words, if the winding devices are arranged in three rows above and below, all three threads are cut. disconnect. The end of the cut supply thread is suctioned by the suction port. When doffing and setting of the empty bobbin are completed, the thread shifting device operates and threads the thread being sucked by the suction port onto the empty bobbin of the winding device.
Since these suction ports and thread handling devices can be raised and lowered on the trolley, each device can be raised to a position corresponding to the winding device that threads the thread. You can make a bet. When all threading to the winding devices in one row is completed, the cart is moved left and right by one pitch, and threading to the winding devices in the other adjacent row is performed.

〔Example〕

FIG. 1 shows a side view of the yarn false twister. A long first heater 2 is provided upright on one side of the working space 1, and a plurality of winding devices 3 are provided on the other side. Further, a creel 4 supporting a large number of yarn feeding packages P1 is arranged at the back of the first heater 2, and a second heater 5 is arranged at the back of the winding device 3. A yarn cooling plate 6, a yarn guide device 7, and a false twisting device 8 are arranged in this order above the work space 1, and feed rollers 9, 10, 11 are provided below the first heater 2 and above and below the second heater 5, respectively. will be arranged.
The yarn Y pulled out from the yarn supply package P1 passes through the first feed roller 9, passes through the first heater 2 from bottom to top, and travels diagonally downward along the rear yarn cooling plate 6 bent by guide pins 12 and 13. The yarn is further introduced into a false twisting device 8 via a yarn guide device 7.
The yarn Y leaving the false twisting device 8 is bent downward by the guide pin 14, passes through the second feed roller 10, descends in the second heater 5, passes through the third feed roller 11 and yarn guide 15, and is wound by the winding device 3. Taken,
It is formed as a winding package P2. The winding device 3 is provided with 12 units in total, three stages up and down and four rows in the front-rear direction in the plane of the paper, and includes a cradle arm 16 that supports the winding package P2, a friction roller 17 that rotationally drives the package P2, and a thread Y. It is composed of a thread guide 18 for guiding and other members. 1
A suction pipe 9 is provided below the winding device and communicates with a blower (not shown).

A flat peg stand 20 is arranged in front of the first heater 2 in the work space 1 . The stand 20 has a roller 21 provided on its lower surface that slides on a rail 22 laid on the ground, so that the first
It is designed to be able to travel in the front and rear directions of the drawing surface.
Usually, it is fixed at a position facing the winding device 3 by a stopper (not shown). Also, the stand 2
A total of 12 pegs 23 are planted in the horizontal direction on the surface facing the winding device 3 of 0, in 3 rows up and down and 4 rows in the front and back direction of the paper, with equal intervals in the top and bottom and front and back. An empty bobbin B is inserted into each of the . Peg stand 20 and winding device 3
Another rail 24 is laid on the ground between the doffing cart 25 and the doffing cart 25, which is run by rollers 26 in the longitudinal direction on the paper.

FIG. 2 is a schematic front view of the doffing truck 25 viewed from the peg stand 20 side. In the same figure, the doffing truck 25 has boxes 27 and 2 containing drive mechanisms on the left and right sides.
8, and various arms 31, 32, 33, 34 and a threading device 35, which will be described later, are provided between both boxes. 36 is a motor for driving the roller 26. Three of the above arms are provided on the upper and lower sides, and two types of arms 33 and 34 are rotatably provided on the left drive box 27. The other two types of arms 31 and 32 are arm support plates 3
fixed on 7 different surfaces. The plate 37 is rotatably supported by a slide frame 38,
The frame 38 runs along a guide bar 39 and a guide rail 40 fixed to the right drive box 28 in the front-rear direction in the plane of the second drawing.

FIG. 3 shows a drive mechanism for the bobbin supply arm 33 and the cradle operation arm 34 among the arms. Each bobbin supply arm 33 has a shaft 41
is pivotally supported in the drive box 27 by
pulley 42 and other pulleys 43, 4 provided in
A single endless belt 46 is wound around 4 and 45. The shaft of a motor 47 is directly connected to the pulley 45, and as the motor 47 is driven in forward and reverse directions, the bobbin supply arm 33 pivots as shown by an arrow 48. On the other hand, the cradle operating arm 34
drives the drive box 2 with a shaft 49 provided on the arm.
7 and fixed to the shaft 49;
is fitted into a fixed pin 52 on a slide rod 51 extending in the vertical direction. The rod 51 is supported by a support block 53 fixed to the drive box 27 in a vertically slidable manner, and a pin 54 provided at the lower end
is fitted with a lever 56 fixed to the shaft of the motor 55. Therefore, as the shaft of the motor 55 rotates forward and backward within a predetermined angle, the slide rod 51 moves up and down, and the cradle operating arm 34 pivots as shown by arrow 57.

Figures 4a and 4b show the bobbin supply arm 3.
3 shows the grip part. A U-shaped plate 61 is fixed to the tip of the arm 33, and two grippers 63, 63 are supported by a shaft 62 on the plate. A spring 64 is stretched between both grippers 63 and biases the grippers 63 in the closing direction. Also, the plate 61 has both grippers 6 at its tips.
A plate-shaped piece 65 located between the two grippers 63 is fixed, and an inclined surface 66 is formed inside the tips of both grippers 63. When the grippers 63 are not supporting the empty bobbin B, both grippers 63 receive a force in the closing direction due to the force of the spring 64, but since the inner parts of the grippers abut against the piece 65, both grippers 6
3 and 63 are maintained in positions slightly closer to each other than in the illustrated state. When the gripper 63 that does not support the empty bobbin is pressed against the outer peripheral surface of the empty bobbin B, the bobbin B presses the inclined surface 66 outward, so both grippers temporarily open, and then the bobbin B is moved between the grippers. and held as shown. Further, when only the bobbin B is pressed downward from this state, both grippers 63 are opened and the bobbin B is taken out.

FIG. 5 shows yet another drive mechanism for the cradle operating arm 34. As shown in FIG. The arm 34 is supported by the left drive box 27 via a shaft 49.
It is rotatably supported by a shaft 72 on a letter-shaped block 71. A slide pin 73 is inserted through the shaft 49, and one end of the pin 73 abuts against the base end of the cradle operating arm 34, and the other end abuts against a pivot block 74, which will be described below. The swing block 74 is supported by the left drive box 27 and is fixed to a swing rod 75 that extends parallel to the slide rod 51, that is, in the vertical direction. 76 is a motor provided in the box 27, and the motor 76
A cam 78 fixed to the shaft 77 of the cam 78 abuts a cam follower 80 on another pivot block 79 fixed to the pivot rod 75. Therefore, when the shaft 77 of the motor 76 rotates, the cam 78 and the cam follower 80 come into contact with each other, causing the rotation block 79 to move toward the rotation rod 7.
Another turning block 74 fixed to the rod 75 turns and pushes the slide pin 73, and the pin 73 presses the base end of the cradle operating arm 34, so that the arm 34 is rotated. It rotates at a predetermined angle around the axis 72. 81 is a spring that presses the arm 34 against the slide pin 73, and 82 is a stopper that comes into contact with the arm 34 to restrict its posture.

The cradle arm 16 is rotatably supported by a shaft 85, and has a rotatable bobbin holder 86 for supporting the bobbin B. One arm 16a is rotatably supported by the arm body 16b by a shaft 87, and a downwardly bent L-shaped locking tool 88 is provided at the tip of the arm 16a. Therefore, when the tip of the cradle operating arm 34 is engaged with the locking tool 88, the arm 3
4 rotates as described above, the cradle arm 1
One arm 16a of 6 is centered on the axis 87.
Open outward as shown by the dotted chain line to release the supported bobbin B.

FIG. 6 shows the side surface of the cradle operating arm 34 from a direction opposite to that shown in FIG. The arm 34
Two plates 91 and 92 are provided at a distance from each other at the tip of the plate.
is fixed to the arm 34, and the other plate 92 is slidably supported by fitting a bolt 94 fixed to the arm 34 into a long hole 93 formed in the plate. The fixed plate 91 has a distal end that protrudes longer than the other movable plate 92, and an inclined surface 95 is formed on the upper surface of the distal end of the movable plate 92. A spring 96 is stretched between the main body of the cradle operating arm and the movable plate 92, and urges the plate 92 in a direction in which its tip protrudes. The broken line 34a shows the posture of the cradle operating arm 34 when it is not in operation, and the arm 34 pivots upward from this posture as described above. When the package P2 supported by the cradle arm 16 is fully wound, if the cradle operating arm 34 starts turning from the 34a position, when the cradle operating arm 34 turns to the 34b position shown by the dashed line, the inclined surface 95 of the movable plate 92 is the locking tool 88
cradle arm 1.
6 is pulled up to position 34c shown by a solid line. At this time, the package P2 is moved to the friction roller 17.
The rotation is stopped because it separates from the Next, the cradle operating arm 34 pivots from the solid line position 34c toward the front of the paper in FIG. 6 as described above, releasing the package P2 from the cradle arm 16 and allowing it to fall. Thereafter, the empty bobbin B is supplied to the cradle arm 16 by the bobbin supply arm 33 described above, and the cradle operating arm 34
The bobbin B is supported by the cradle arm 16 as the bobbin B rotates back toward the back side of the paper.
Furthermore, the cradle operating arm 34 is then replaced with the original 34.
The empty bobbin B comes into contact with the friction roller 17 at the two-dot chain line position 34d, and the cradle operating arm 34 returns to the position a.
is separated from the locking tool 88. Note that at the 34b position, the locking tool 88 comes into contact with the inclined surface 95 of the movable plate 92, but after that, the plate 92 slides in the direction of the shaft 49 against the force of the spring 96, so that it reaches the 34c position. By now, the locking tool 88 is located between both plates 91 and 92. Therefore, when the cradle operating arm 34 pivots downward, the movable plate 92 presses the locking tool 88, and the cradle arm 16 can be pushed down.

The structures of the package support arm 31 and bobbin support arm 32 are shown in FIGS. 2 and 5. The package support arm 31 consists of two arms 31a whose mutual interval is slightly shorter than the length of the bobbin B.
31a, and a recess 101 for supporting the bobbin B is formed in the upper part of each arm 31a. The structure of the grip portion of the bobbin support arm 32 is substantially the same as that of the bobbin supply arm 33 described above, so although it will not be described in detail, the gap between both grippers is 1.
02 is set sufficiently smaller than that of the bobbin supply arm 33, and the opening 103 of the gripper is
is set to face downward. Furthermore, when a bobbin B is placed in the recess 101 of the package support arm 31 and the bobbin support arm 32 and another bobbin B is supported by the gripper, both bobbins B become parallel to each other and the distance between the bobbins is set. It is fixed to the arm support plate 37 so as to be equal to the bobbin interval on the peg 23 adjacent to the side of the stand 20.

Next, the support mechanism of the arm support plate 37 will be explained with reference to FIGS. 7a and 7b.

The guide bar 39 and guide rail 40 are horizontally fixed to the inner surface of the right drive box 28, and the slide frame 38 is slidably supported by these. One guide rod 105 is rotatably supported in the vertical direction by two support blocks 106 and 107 on the frame 38, and two blocks 108 are fixed to the rod 105, and a screw is inserted between the two blocks 108. A rod 109 is rotatably supported parallel to the guide rod 105. Furthermore, guide rod 10
5 is provided with a lifting block 110 that is vertically slidable and screwed into the screw rod 109, and the arm support plate 37 is fixed to the block 110. Therefore, when the screw rod 109 rotates, the arm support plate 37 moves up and down together with the lifting block 110. To explain in more detail, 111 is the guide bar 3
The screw rod 111 is rotatably supported on the right drive box 28 so as to be parallel to the rod 111.
The endless belt 11 is connected between a pulley 112 fixed to the end of the motor 113 and a pulley 114 provided on the shaft of the motor 113.
5 is wrapped. The slide frame 38 also includes a block 116 that is threadedly engaged with the screw rod 111 and a block 1 that is slidably engaged with the guide bar 39.
17 is fixed, therefore, when the motor 113 is rotationally driven, the screw rod 111 rotates, and the slide frame 38 slides along the guide bar 39. Furthermore, a gear 119 fixed to the shaft of a motor 118 provided on the slide frame 38 meshes with a gear 120 fixed to the upper end of the guide block 105, and when the motor 118 is rotationally driven, the guide rod 105 rotates together with the block 108. Therefore, since the screw rod 109 turns around the guide rod 105, the lifting block 11
0 also pivots, and the arm support plate 37 fixed to the block 110 pivots. 121 is a motor provided on the arm support plate 37;
Pulley 122 fixed on the shaft of 21 and screw rod 10
An endless belt 124 is wound between the upper end of the arm support plate 37 and a fixed pulley 123, and when the motor 121 is rotationally driven, the screw rod 109 rotates, and the arm support plate 37 moves up and down the lifting block 11.
It goes up and down with 0. Sensors S1 to S4 are provided on the upper side surface of the right drive box 28, and the position of the slide frame 38 is confirmed by each sensor S1 to S4 detecting a piece 130 provided at the upper end of the slide frame. Further, S5 to S8 are sensors provided on the slide frame 38, and each sensor S5 to S8 is fixed to the arm support plate 37 and detects the disk 126 that is vertically slidably supported by the guide rod 105. The vertical position of the support plate 37 is confirmed. The disk 126 is fan-shaped in plan view, so that even if the disk 126 rotates by a predetermined angle together with the arm support plate 37, the sensors S5 to S8 can detect the disk. Furthermore, S9 is a sensor provided at the upper part of the drive box 28, and by detecting the pieces 127 and 128 fixed to the gear 120 with their orientations changed by 90 degrees, the rotation position of the arm support plate 37 can be confirmed. It's summery.

The operations of the various mechanisms described above will be explained below in relation to each other.

When a doffing command is issued from the yarn false twister, the doffing cart 25 travels on the rail 24 and stops at a predetermined position. Here, it is assumed that empty bobbins B are all inserted into each peg 23 on the stand 20. In addition, there is a piece 1 on the ground in front of each peg 23.
31a to 131d are laid, and at the same time, as shown in FIG. A sensor S10 for detecting each of these pieces is mounted on the bobbin support arm 32 in FIG.
It is located below the . At the first stop position of the doffing truck 25, the sensor S10 detects the pieces 131a~
131d and when the count value of the detection signal reaches 5, that is, the sensor S10 detects the piece 13.
It is determined that the motor 36 is stopped at the time when 1a is detected. At the same time as the doffing truck 25 stops, the motor 113 is driven and the slide frame 38 moves in the direction of the arrow 135 in FIG. 7a.
The process stops when the fourth sensor S4 detects the piece 130. At this time, the bobbin support arm 32 is
It is located directly above the empty bobbin Ba in the figure.
Next, the motor 121 is driven to lower the arm support plate 37, and the eighth sensor S8 detects the disk 1.
It stops when 26 is detected. At this time, the bobbin support arm 32 is in a state where it grips the empty bobbin Ba on the peg 23 from above. Next, the motor 113
is driven and the slide frame 38 moves in the direction of the arrow 136.
This moves the empty bobbin Ba to peg 2.
3a, and the second sensor S2 is removed from piece 1.
It stops when 30 is detected. Then motor 1
21 is driven, and the ground support plate 37
The arm support plate 37 moves up until the sensor S6 detects the disk 126, and the motor 118 is driven to rotate the arm support plate 37 by 90 degrees until the ninth sensor S9 detects the piece 127. At the same time, the motor 47 is driven to rotate the bobbin supply arm 33 and stop when the gripper portion of the arm 33 reaches the upper part of the bobbin support arm 32. Next, the motor 55 is driven and the cradle operating arm 3
4 pivots upward, lifting the cradle arm 16 and separating the fully wound package P2 from the friction roller 17. Furthermore, the motor 113 is driven, and the slide frame 38 is connected to the first sensor S.
1 moves in the direction of arrow 136 until piece 130 is detected. At this time, the package support arm 31
enters the lower part of both ends of the bobbin of the package P2. Next, the motor 121 is driven and the arm support plate 37 is moved so that the fifth sensor S5 is connected to the disk 12.
It rises a little until it detects 6. As a result, both ends of the bobbin of the package P2 are positioned within the recess 101 of the package support arm 31. The state at this time is shown by the solid line in FIG. Then motor 7
6 is driven, the cradle operating arm 34 opens the cradle arm 16, and supports the package P2 on the recess 101 of the package support arm 31. Next, the motor 113 is driven to move the slide frame 38 in the direction of the arrow 135, and the third sensor S3 detects the piece 130 and stops. At this time, the bobbin support arm 32 and the bobbin supply arm 3
3 is shown by a solid line in FIG. 10, and the position of the package support arm 31 is shown by a two-dot chain line in FIG. Thereafter, the motor 47 is driven to rotate the bobbin supply arm 33 to receive the empty bobbin Ba supported by the bobbin support arm 32 from above and to position the bobbin Ba between the cradle arms 16. FIG. 11 shows the state at this time. Next, the motor 76 is driven to cause the cradle operating arm 34 to close the cradle arm 16, so that the empty bobbin Ba is supported by the cradle arm 16. Next, the bobbin supply arm 33 pivots back to the original position shown in FIG. 2, the cradle operating arm 34 also pivots back to the position shown in FIG. 32 is also the 9th
The arm support plate 37 returns to its original position as shown by the dashed line in the figure, and the arm support plate 37 further descends to the position where the seventh sensor S7 detects the disk 126. As a result, each arm 31, 32, 33, 34 Return to the state before starting the lifting operation. By the above operations, the three package cages P2a in the first row are doffed and the empty bobbin is
Supply of 3 Ba ends.

Thereafter, a threading operation is performed by the threading device 35, which will be described later, and the doffing cart 25 is then retreated to the second row piece 131b position, and the fully wound package P2 on the package support arm 31 is placed on the package support arm 31 as described below. Discharge to stand 20 and stand 2
A new empty bobbin B is received from 0. That is, first, the slide frame 38 is moved in the direction of the arrow 135 by the drive of the motor 113, and the fourth sensor S4 detects the piece 130 and stops. Both support arms 31 and 32 are parallel to each other, and the distance between the parts that can support both bobbins is equal to that of the stand 20.
The interval between the bobbins on the pegs 23 adjacent to each other in the lateral direction is set to be equal to each other, and since the bobbin support arm 32 is provided above the package support arm 31, the distance between both support arms 31 and 32 and the peg at this time is set to be equal to each other. The relationship with 23 is as shown in FIG. 12a. That is, the package support arm 31 inserts the center of the bobbin of the package P2a it supports into the empty peg 23a in the first row, and the bobbin support arm 32 inserts the center of the bobbin of the package cage P2a it supports into the empty peg 23a in the second row. It is located directly above 23b. Next, the motor 121 is driven and the eighth sensor S8 detects the disk 12.
The arm support plate 37 descends until 6 is detected. At this time, both support arms 31 and 32 are
The position will be as shown in Figure 2b. That is, the fully wound package P2a supported by the package support arm 31 is placed on the peg 23a of the empty first row, and the arm 31 is lowered to a position below the package P2a. Further, the bobbin support arm 32 is in a state where it grips the second row bobbin Bb from above. Next, the motor 113 is driven and the slide frame 38 moves in the direction of the arrow 136 to a position where the second sensor S2 detects the piece 130. The subsequent operation of the doffing cart 25 is similar to that described above, in which it receives the fully wound package P2b from the winding device 16 in the second row, supplies the supported empty bobbin Bb in its place, and performs the threading operation. I do. That is, for the doffing operation of the first row of packages P2a, the doffing truck 25 starts by removing the first row of empty bobbins Ba from the stand 20, and after receiving the package P2a, supplies the empty bobbins Ba. Next, after the doffing cart 25 travels to the second piece 131b position, the supporting package P2a
is given to the empty peg 23a in the first row, and at the same time an empty bobbin Bb is received from the peg 23b in the second row. The doffing truck 25 repeats the above-mentioned operation,
All the package cages P2a to P2d of the yarn false twisting machine are doffed and all the empty bobbins Ba to Bd are fed, and finally, the fourth piece is placed at the fifth piece 131e position.
Connect the package cage P2d in the row to the peg 23d in the fourth row.
After supplying the machine, it travels back to its original position and completes the doffing operation. At this stage, all the full package P
2a to P2d are transferred onto the corresponding pegs 23a to 23d, and the empty bobbins Ba to Bd are transferred onto the corresponding winders to resume winding.

Next, the threading device 35 mentioned above will be explained.

The thread hooking device 35 includes a hose support device 135 and a thread cutting device 136 fixed in position to the doffing cart 25.
It basically consists of a thread guide device 137 and a thread shifting device 138 that move up and down on the trolley 25.

The hose support device 135 is shown in FIGS.
As shown in the figure, the bottom plate 141 of the doffing truck 25
A flexible hose 143 is wound around a drum 142 that is rotatably supported on the drum 142.The tip of the hose 143 is fixed on a substrate 144, which will be described later, and the base end is opened to the outside through a pipe 145. ing. This opening 146 is in sliding contact with the front surface of the suction pipe 19 described above. The front surface of the suction pipe 19 has a suction hole 14 as shown in FIG.
7 is opened, and a cover plate 149 rotatably supported by a shaft 148 covers the hole 147. hose 1
When the pipe opening 146 of 43 reaches the front surface of the suction port 147 as the doffing truck 25 travels, the cover plate 149 rotates due to contact with the opening 146, and the opening 146 and the suction hole 147 are connected. Due to the communication, a suction air flow acts within the hose 143. The drum 142 can be freely rotated by pulling out the hose 143, but a wire 151 is wound around one end of the drum 142 and the tip of the wire is fixed, and the base end of the wire is attached to a spring (not shown). Therefore, it is fixed to a roller 152 which is urged to rotate. Therefore, when the hose 143 is released after being pulled out of the drum 142, it is connected to the wire 15.
1 onto a rotating drum 142.

The yarn cutting device 136 is shown in FIGS. 13 and 16, and consists of first and second yarn shifting plates 152 and 153 rotatably supported on a bottom plate 141. Both thread shifting plates 152 and 153 are connected to their rotating shafts 15.
An endless belt 161 is wound between the pulleys 156 and 157 fixed to the motor 158 on the bottom plate 141 and the pulley 159 of the motor 158 on the bottom plate 141.
8 is driven, the both yarn shifting plates 152 turn as shown by arrows 162 and 163. The first yarn shifting plate 152 is provided with a cutter 164 as shown in FIG. 17b, and both yarn shifting plates 152, 1
The cutter 164 is actuated when the cutters 53 intersect with each other as shown in FIG. 17a. That is, a movable blade 166 is rotatably supported on the first yarn shifting plate 152 by a shaft 165, and a fixed blade 167 is fixed thereto. A free roller 168 is attached to one end of the movable blade 166.
is supported, and an abutting plate 169 is fixed to the second thread shifting plate 153. Both thread shifting plates 152, 15
3 intersect, the contact plate 169 moves to the free roller 16
8, the movable blade 166 turns and cuts the yarn Y in the recess 171 of the second yarn shifting plate 153.

Thread guide device 137 is shown in FIGS. 13 and 18. The thread guide device 137 includes a substrate 144,
It consists of two thread guide plates 173, 174 rotatably supported between the substrates 144, 17.
2 is slidably supported by two guide rails 175, 175 provided perpendicularly to the doffing cart 25, and pulleys 1 provided at the top and bottom of the doffing cart 25, respectively.
Endless belt 177 wrapped between 76 and 176
is connected to. A motor 178 is directly connected to the shaft of the lower pulley 176, and when the motor 178 is driven, the thread guide device 137 moves up and down together with the substrates 144 and 172. Lower board 17
A motor 183 having two cam plates 181 and 182 fixed to its shaft is fixed on the motor 2, and a cam follower 185 of a rocking plate 184 rotatably supported on a base plate 172 is in contact with the cam plate. ing. In addition, the swing plate 184 and each of the thread guide plates 173, 1
74 by connecting rods 186. Therefore, when the motor 183 is driven, each yarn guide plate 173, 174 is connected to the shaft 187, 18 according to the shape of the cam plate 181, 182, respectively.
Rotate around 8.

The thread shifting device 138 is shown in FIGS. 13, 19, and 20. The device 138 is connected to the lower base 1
A first lever 191 and a second lever 191 pivotally supported on
Lever 192, and a third lever 195 connected to both plates 191, 192 by shafts 193, 194.
It consists of A connecting rod 196 is connected to one end of the first lever 191, and the other end of the rod 196 is connected to a disk 198 fixed to the shaft of a motor 197 fixed on the base plate 172. When each lever 191, 192, 195 is not in operation, it is in the position shown by the dashed line in FIG. The second lever 192 pivots about the shaft 202, and thereby the third lever 195 advances to the end of the bobbin B in the winding device 16.

Next, the operation of the thread hooking device 35 described above will be explained.

First, at the start of the doffing operation described above, the following operations of cutting the thread and holding the cut thread are performed. Note that at this time, the thread guide device 137 and the thread shifting device 138 are at the lowest position, as shown by solid lines in FIG. In addition, in giving this explanation, the arrangement of the yarn guide 18 in the yarn false twisting machine is
This is shown in Figure 1. That is, the winding device 16 at the lowest stage
has three thread guides 18a, 18b, 18c,
Two thread guides 18b and 18c are provided at the middle stage, and one thread guide 18c is provided at the top stage. When the doffing truck 25 stops at a predetermined position, the suction pipe 19 and the hose 143 communicate with each other, and a suction force is applied to the hose suction port 205. At the same time, the motor 183 is driven, and the yarn guide plates 173 and 174 are rotated by a predetermined angle as shown by arrows 206 and 207 in FIG.
The outer two threads Y2 and Y3 are caught in the recesses 208 and 209. Furthermore, the motor 158 is driven to rotate the yarn shifting plates 152 and 153, respectively, and the yarn gathered at the center by the yarn guide plates 173 and 174 is bundled together and moved to the hose suction port 205, and then the yarn is moved to the cutter 164. The threads are cut all at once by the thread shifting plate 152,
153 returns to its original position. As a result, the thread on the package P2 side is drawn in by the rotation of the package, but all the threads on the lower side extending upward from the thread guide 15 are sucked into the suction port 205. At this time, the threads Y2 and Y3 on both sides are sucked while being engaged with the recesses 208 and 209.

When the doffing cart 25 finishes doffing the package P2 of the row and supplying the empty bobbin B, the motor 178 is driven, and the thread guide device 137 and thread shifting device 138 are shown by the dashed line in FIG. and stops at a predetermined position corresponding to the winding device 16 at the lowest stage. This stop positioning may be performed by counting the number of revolutions of the motor 178 by a known means, or by fixing an appropriate piece at a predetermined position on the guide rail 175 and detecting it with a sensor provided on the thread guide device 137 or the like. You can also do it. After stopping, the motor 197 is driven and the thread pulling device 138
operates as shown by the solid line in FIG. 19, and the third lever 195 engages the central thread Y1 immediately in front of it with the thread guide 18c, and threads the thread onto the bobbin B of the winding device 16. This thread hook is attached to the third lever 195.
The thread Y1 that has been moved may be engaged with a slit formed in the bobbin B, or may be engaged between the bobbin B and the bobbin holder 86. Next, the thread shifting device 138 returns to its original position, and the motor 178 is driven again to move both devices 1.
37 and 138 rise to the middle winding device 16 position. During this upward movement, the motor 183 is driven, and both yarn guide plates 173 and 174 turn according to the shape of the cam plates 181 and 182 while being engaged with the yarns Y2 and Y3, and the yarn Y2 is guided to the lowest yarn guide 18b. , the other thread Y3 is engaged with the lowermost thread guide 18a, respectively. The state at this time is shown in Figure 23,
Yarns Y2 and Y3 exiting the yarn guide 15 at the bottom of the yarn false twisting machine
After engaging with the lowermost thread guides 18b and 18a, respectively, they further engage with the thread guide plates 173 and 174 and are sucked by the suction port 205. At this time, one yarn Y2 runs between the yarn guide plate 173 and the suction port 205, just in front of the third lever 195 of the yarn shifting device 138, and the other yarn Y3 is moved to a sideward position by the lever 195. be. Thereafter, the thread shifting device 138 is operated again in the same manner as described above, so that the thread Y2 engaged with the thread guide plate 173 is engaged with the tip of the third lever 195 and removed from the thread guide plate 173. , and is wound around the bobbin B after being engaged with the middle thread guide 18c. Next, the thread shifting device 138 returns to its original position, and the thread guide device 138 and the thread guide device rise to the position of the winding device 16 at the top stage. During this rise, the thread guide plates 173, 17
4 is turned, and the yarn Y3 is engaged with the middle yarn guide 18a by the yarn guide plate 174, and the third
It is guided to the front of the lever 195. Next, the yarn shifting device 138 operates to move the yarn Y3 onto the yarn guide plate 1.
74, engages with the upper thread guide 18c, and threads the upper bobbin B. Thereafter, the thread guide device 137 and the thread shifting device 138 return to their original states and then descend to the lowest position.

The above is a description of the threading operation by the threading device 35, whereby each thread Y is reliably threaded onto all the bobbins B and engaged with each thread guide 18. Thread guide device 137 and thread shifting device 1
38 is raised and lowered according to the height of the bobbin B of each stage, and the hose suction port 205 that sucks the thread Y is also raised and lowered at the same time, so threading can be easily carried out with a simple operation, and therefore, threading can be carried out quickly. This allows for threading.

〔Effect of the invention〕

According to the present invention, a device for threading is provided on a truck that runs left and right along the winding device, and can be moved up and down on the truck. Therefore, according to the present invention, each winding device in the yarn false twisting machine can be threaded with one threading device under the same conditions, thereby avoiding complication of the construction and mechanism, and reducing the doffing operation. In addition to being able to prevent the above troubles, the time required for the operation can be shortened, and the operating rate of the yarn false twisting machine can be increased.

[Brief explanation of drawings]

FIG. 1 is a side view of the yarn false twister, FIG. 2 is a front view of the doffing truck, FIG. 3 is a diagram showing the drive mechanisms of the bobbin supply arm 33 and the cradle operating arm 34, and FIGS. 4a and 4b. 5 shows the gripper portion of the bobbin supply arm 33, FIG. 5 shows the drive mechanism of the cradle operating arm 34, FIG. 6 shows the action of the arm 34, and FIGS. 7a and 7b show the arm. A diagram showing the drive mechanism of the support plate 37, FIG. 8 is a plan view for explaining the stop position of the doffing truck, FIG. 9 is a plan view for explaining the doffing operation, and FIGS. 10 and 11. 12 is a diagram for explaining the operation of supplying an empty bobbin to the winding device.
Figures a and 12b are diagrams for explaining the operation of supplying the package to the peg on the stand and receiving an empty bobbin, and Figure 13 is a front view showing the threading device 35.
FIG. 14 is a diagram showing the hose support device 135, the first
5 is a front view of the suction pipe 19, FIG. 16 is a plan view of the thread cutting device 136, FIGS. 17a and 17b are views showing the cutter 164, and FIG. 18 is a plan view of the thread guide device 137. 19 and 20 are a plan view and a side view showing the thread shifting device 138, FIG. 21 is a front view showing the arrangement of the thread guide 15, and FIG. 22 is a plan view for explaining the operation of the thread cutting device 136. , FIG. 23 shows the thread guide device 137.
FIG. 3 is a plan view for explaining the operation. 16... Winding device, 25... Doffing truck, 136
... Thread cutting device, 138 ... Thread shifting device, 205
...Hose suction port, B...Bobbin, Y...Thread.

Claims (1)

[Claims] 1. In a yarn false twisting machine with a plurality of winding devices arranged vertically and horizontally, a trolley is run in the left and right direction in front of the winding device, and the trolley is supplied with winding devices in one row above and below. In addition to providing a thread cutting device that cuts the thread, a suction port that sucks the cut thread and a thread shifting device that threads the thread sucked into the suction port onto the empty bobbin of the winding device can be raised and lowered. A device for threading yarn onto an empty bobbin in a yarn false twisting machine, characterized in that: