JPH0747438B2 - Automatic doffing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic doffing device for replacing a full bobbin wound by a yarn winding machine with an empty bobbin.

(Prior Art) In recent years, various automatic doffing devices have been proposed from the viewpoint of reducing labor from large packaging and improving productivity by shortening doffing work time and reducing the number of workers.

For example, in the automatic doffing device disclosed in Japanese Patent Publication No. 54-14222, a doffing vehicle capable of running is provided in front of the winder, and a full bobbin on the winder side is filled with a pusher. Extruded and handed over to pegs on doffing cars. afterwards,
The peg that has received the full bobbin is lowered in a horizontal state, rotated at the lower end position of the peg to be inclined, and is delivered from the peg on the full bobbin doffing vehicle side to an inclined peg serving as a bobbin storage portion.

On the other hand, the bobbin holder from which the full bobbin has been removed is equipped with an empty bobbin that has been stored in the doffing vehicle in advance, and the doffing work is completed there.

(Problems to be Solved by the Invention) However, in the doffing device disclosed in Japanese Patent Publication No. 54-14222, the empty bobbin is accommodated on the side of the doffing vehicle and the empty bobbin is provided at a position corresponding to the upper end of the peg when the peg is lowered. A supply mechanism for supplying is required, which has the drawback of increasing the size and complicating the structure. Also, a take-out step of taking out the full bobbin from the bobbin holder, and a lowering step of lowering the peg in a horizontal state,
It requires a tilting process that rotates after descending, a delivery process that delivers a full bobbin from the peg side to the tilting peg, and a process that supplies the bobbin stored on the doffing car side to the winder side. It has the drawback of requiring time.

In view of the above problems, an object of the present invention is to provide an automatic doffing device that simplifies and downsizes the structure and shortens the doffing time.

(Means for Solving the Problem) The technical means is an automatic doffing device for replacing a full bobbin of a winding machine in which a yarn is wound with an empty bobbin, and a bobbin mounted on a spindle of the winding machine. A bobbin holding rod that holds an empty bobbin in parallel with the same is provided in the vicinity of the spindle on the same side as the spindle side of the winder, and in front of the winder, on the front side extension of the spindle and the bobbin holding rod. The doffing trolley having a pair of receiving pegs respectively positioned at the two receiving pegs and the positions of both receiving pegs being reversible around the axis parallel to the axis of the spindle can be stopped freely. The doffing trolley provided is
A bobbin take-out mechanism that moves both bobbins from the spindle and bobbin holding rod side to each receiving peg at the same time by a movement in the axial direction of both bobbins, and a bobbin returning mechanism that simultaneously moves both bobbins from the receiving peg side to the spindle and bobbin holding rod. The point is that it is provided.

In addition, the doffing trolley is provided with an operation console that can be retracted and retracted toward the front of the winder, and the operation console has a winder operation unit that performs spindle rotation / stop operations and bobbin chuck / release operations on the spindle. , Cut the yarn and hold by suction,
A thread hooking mechanism that hooks a thread on an empty bobbin mounted on the spindle may be provided.

The front side of the winder means the non-driving side of the spindle of the winder when viewed from the spindle of the winder.

(Operation) According to the present invention, the doffing cart is run in front of the winding machine and stopped, and the full bobbin and the empty bobbin are simultaneously moved from the spindle and bobbin holding rod side to each receiving peg by the operation of the bobbin take-out mechanism. After that, the revolving part is turned over to replace the positions of both receiving pegs, and the bobbin return mechanism is operated to simultaneously replace the empty bobbin and the full bobbin with each receiving peg from the receiving peg side to the spindle and bobbin holding rod. By transferring, the doffing work is completed.

Further, the empty bobbin is in parallel with the bobbin mounted on the spindle of the winder, and any one side above, below, left, right, diagonally above or diagonally below the spindle (hereinafter referred to as one side of the spindle). In other words, in order to hold the bobbin holding rod provided near the spindle of the winder in advance,
Since the empty bobbin storage part is not required on the doffing trolley side and the positions of the full bobbin and the empty bobbin are exchanged by reversing the revolving part, the full bobbin take-out mechanism and the empty bobbin supply mechanism are individually configured. No need.

Further, the bobbin holding rod is also used to hold the full bobbin after the doffing work is completed.

If a doffing trolley is equipped with a winder operating section for operating the winder, a thread hooking mechanism for threading an empty bobbin mounted on the spindle, a bobbin take-out mechanism, and a bobbin return mechanism, each winder can be used. It is not necessary to provide each of them and it can be combined.

(Embodiment) Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an overall schematic view of an automatic doffing device according to the present invention. Multiple winding machines 2
Are laid side by side, and doffing carts 5 run on rails 3 and 4 laid in front of each winder 2 in the parallel direction of the winders 2, that is, in the left-right direction. Is provided.

As shown in FIGS. 1 and 2, the winder 2 has a base 7 arranged in parallel on the machine base 1, a spindle 9 on which a bobbin 8 is detachably mounted, and a spindle 9 that is driven to rotate. A rotation drive mechanism including an electric motor and a power transmission mechanism (not shown) are provided. The base 7 is configured in an L-shape in a side view, and includes a vertically raised base 7a mounted and fixed to the machine base 1 and a horizontal portion 7b extending horizontally forward from the upper end of the base 7a. The spindle 9 has an axial center in the front-rear direction, and is supported in a cantilever manner on the support base 10 on the rear end side, and the lower part of the support base 10 is supported by the support shaft 11 provided on one side of the base 7a in the front-back direction. It is pivotally supported around the axis. Reference numeral 12 is a swing operation lever for swinging the support base 10 around the support shaft 11 to change the posture of the bobbin 8 between the winding posture and the doffing posture.
It is fixed to the 10 side and has an L-shape when viewed from the side and protrudes forward. Reference numeral 13 denotes a switching operation lever, which is L-shaped in a side view and protrudes to the front side. The rotation operation state is such that the bobbin 8 is chucked on the spindle 9 and integrally rotated with the spindle 9, and the chucking state between the spindle 9 and the bobbin 8 is provided. It is released to allow free rotation, and at the same time, it can be switched to a stopped state in which the rotation of the spindle 9 is stopped, and the rear end side has a support base 10
Is connected to the rotary drive mechanism of the spindle 9 on the side.

Further, the support base 10 is pivotally supported by a support shaft 11 as a return hand in which the spindle 9 part is biased toward the horizontal part 7b of the base 7, and the horizontal part 7b side facing the spindle 9 part is touched. The roller 14 is provided so as to be rotatable around its axis in the front-rear direction, and a traverse guide 15 is provided on the upper side of the touch roller 14 and is reciprocally operated in the front-rear direction.

In the present embodiment, the yarn 16 is wound in four places at four points, and the traverse guide 15 and the fulcrum guide 17 are also provided at four points.

A spindle stand 19 is provided on one side of the spindle 9 of each winding machine 2, and the bobbin stand 19 is provided.
19 is a mounting bracket 19a fixedly mounted on the machine base 1
And a cantilevered bobbin holding rod 19b whose rear end is attached to the mounting bracket 19a. The bobbin holding rod 19b is arranged with an axis parallel to the spindle 9 and is attached to the spindle 9 there. The bobbin 8 and the bobbin 8 inserted into the bobbin holding rod 19b are arranged in parallel.

As shown in FIG. 1, FIG. 3, and FIG. 4, the doffing dolly 5 is provided with a traveling platform 22 that travels along the rails 3 and 4, and an operation platform 23 mounted on the traveling platform 22. Tera 22
Is mainly configured in a U-shape in a plan view with an opening portion 21 opening to the rear side, each pair of wheels 24 and 25 is provided on the lower surface side front and rear, and the front wheel 24 is mounted on the traveling platform 22 and is not shown. Drive wheels are driven through an electric motor, a power transmission mechanism, and the like, and rear wheels 25 are grooved wheels that are rolled on the rail 3 in a fitted state. Note that the front wheels 24 may be similarly configured as grooved wheels, and instead of the rails 3 and 4, a track may be configured with a magnetic plate on the floor surface, and a method of traveling while detecting the magnetic plate may be used. In addition, the traveling and stopping position control of the traveling platform 22 are performed by an AC motor, counting the pulses with encoders provided on the wheels 24, 25, and when a predetermined number of pulses is reached, a brake is applied to stop at a desired position. do it. Further, a control system using a DC servo motor or an AC servo motor may be used. In addition, the method of stopping the wheels 24, 25
The method is not limited to a method of electrically braking a motor or a motor, and may be a method of mechanically braking.

The revolving part 26 is provided on the upper surface side of the middle part in the left-right direction of the platform 22
The revolving part 26 has a pair of cylindrical receiving pegs 27 having an axial center in the front-rear direction above the revolving part 26, and both receiving pegs 27 have a doffing posture of the bobbin 8. The spindle 9 and the bobbin supporting rod 19b have substantially the same spacing as the spindle 9 and the bobbin supporting rod 19b.
The front end side is fixed to the disk-shaped turning plate 28 at equal distances in the radial direction away from the turning center, and both receiving pegs 27 are arranged.
Has a cantilevered structure. Rotation 28 is a platform
Electric motor 2 mounted on the upper side of the front part of the middle part in the left-right direction of 22
9. The power transmission mechanism 30 is configured to be rotatable forward and backward about the axial center in the front-rear direction, and the positions of both receiving pegs 27 can be inverted with respect to each other by this forward and reverse rotation. Further, an air cylinder 31 having substantially the same length as the receiving peg 27 is mounted in parallel on the rear surface side of the rotating plate 28, and a projecting end of a piston rod 31b which is retractable in the front-rear direction from the rear end side of the air cylinder 31. The rear end portion of the pusher member 32, which is arranged in parallel with the cylinder case 31a side at a predetermined interval, is connected and fixed in a cantilever manner. At the front end of the pusher member 32, on the outer peripheral surface of both receiving pegs 27, a plate-like push-back piece 33, which is closely arranged with a slight gap, is provided so as to project. A rotary actuator 34 is mounted on the outer surface of the front end portion of the pusher member 32 located at.
At the rear end of the rotary shaft 35 protruding rearward in the front-rear direction of the rotary actuator 34, a take-out piece 36 having a substantially doglegged shape in a front view is fixed. The bobbin 8 can be engaged with and disengaged from the rear side surface of the yarn winding portion 37 wound on the bobbin 8 mounted on the bobbin 8 and the rear end edge of the bobbin 8 inserted into the bobbin supporting rod 19b. In addition, in order to engage with the rear side surface of each of the four thread winding portions 37, a take-out piece on the side of the I-shaped spindle 9 having a constant pitch in the front-rear direction is provided in the middle of the rotating shaft 35. 36a are fixed in parallel.

Guide rails 38 in the front-rear direction are provided on the traveling bases 22 located on both sides of the opening 21, respectively, and the operation base 23 is provided so as to be movable in the front-rear direction across both guide rails 38. That is, the operation console 23 is shown in FIGS.
As shown in the drawing, a pair of front and rear shoes 40, which are mainly configured by a frame frame having a substantially gate shape in a front view and are provided at lower ends on both sides, are slidably fitted on the guide rails 38. And
The cylinder case of the air cylinder 41, which can be expanded and contracted in the front-rear direction, is fixedly connected to the traveling table 22 side, and the piston rod is connected and fixed to the operation table 23 side.
23 is movable in the front-back direction along the guide rail 38.

A yarn cutting portion 43 is provided on the side wall 23a side in the left-right direction on the rear end side of the operation console 23, a yarn holding portion 44 is provided on the other side wall 23b side, and a winding machine operating portion 45 is provided on the upper wall 23c side. Each is provided so as to project rearward.

The yarn cutting section 43 is an air cylinder 47 fixed to the side wall 23a.
And a thread guide 48 that is connected to the piston rod of the air cylinder 47 and that is horizontally retracted and operated, and a scissor body 49 mounted on the thread guide plate 48. As shown in FIG. 7, the yarn guide plate 48 is L-shaped when viewed from the front and is made up of a horizontal portion 48a and a vertical portion 48b, and is elongated in the front-rear direction. In order to guide the yarn 16 to a predetermined position at a pitch corresponding to the pitch of each yarn 16 of the machine 2, a plurality of notch-shaped guide grooves 50 are formed along the longitudinal direction. The scissors body 49 is provided corresponding to each guide groove 50, and includes a fixed blade 49a fixed along one side edge of the guide groove 50 and a movable blade 49b pivotally supported by the fixed blade 49a. One end side of each movable blade 49b is pivotally connected to each other by an interlocking rod 51, and by the interlocking rod 51 moving in the front-back direction,
Standby position along the other edge of the guide groove 50, and the fixed blade 49a
The posture can be freely changed to a cutting posture in which the side is overlapped. A cylinder case side of an air cylinder (not shown) that can expand and contract in the front-rear direction is pivotally connected to the yarn guide plate 48 side, and a cylinder rod side thereof is pivotally connected to the front end portion of the interlocking rod 51.

As shown in FIG. 5, the yarn holding portion 44 has a rotary arm 53 having an arcuate shape in a front view, one end of which is supported rotatably around a support shaft 52 in the front-rear direction on the side wall 23b side, and a rotary arm. 53 is provided with a suction arm 54 provided so as to project rearward from the rear surface side of the other end, and the rotation arm 53 is configured such that the suction arm 54 can be moved by expanding and contracting an air cylinder (not shown) mounted on the side wall 23b side. The posture can be freely changed around the support shaft 52 between the standby posture located above and the thread hanging posture located below as shown in FIGS. 10 and 11. On the upper surface side of the suction arm 54,
As shown in FIG. 7, a plurality of guide plates 56, each having a notched guide groove 55 of a triangular shape or the like, are fixed in correspondence with the respective guide grooves 50 and the scissors body 49 of the yarn cutting section 43. In addition, a plurality of fixed blades 57a and movable blades 57b that form the scissors body 57 are provided. One end side of each movable blade 57b is pivotally connected to each other by an interlocking rod 58, and the interlocking rod 58 moves in the front-back direction to wait as described above. The posture of the air cylinder (not shown), which is freely changeable between the posture and the cutting posture, is pivotally connected to the suction arm 57 side on the cylinder case side and to the interlocking rod 58 on the cylinder rod side. Further, when each yarn 16 is cut by each scissors body 49 of the yarn cutting section 43, a suction pipe 60 having an opening 59 directed above the scissors body 49 on the locus of passage of the yarn 16 is provided correspondingly. , Each suction tube 60
The suction arms 54 are in communication with each other and are connected to a suction port of a vacuum pump (not shown). A suction structure using an aspirator or the like may be used instead of the vacuum pump.

The winder operating portion 45 shown in FIG. 3 comprises a swing operating portion 62 for operating the swing operating lever 12 and a switching operating portion 63 for operating the switching operating lever 13 shown in FIG. The operation portion 62 has a left-right bifurcated operation arm 64 on the rear side in which the front protruding end of the swing operation lever 12 is inserted, and is rotatable about an axis in the up-down direction inclined to one side. The rocking operation body 65 is supported, and an air cylinder 66 is provided between the upper wall 23c side and the rocking operation body 65 to rotate the rocking operation body 65.

The cutting operation portion 63 includes a switching operation arm 68 having a vertical bifurcated operation piece 67 on the rear side in which the front protruding end of the switching operation lever 13 shown in FIG. The switching operation arm 68 is connected to the front end of
The rotary actuator 69 is fixed to the 23c side.

Each winding machine 2 side is provided with a fixed length counter (not shown) for counting the length of the yarn 16 wound on the bobbin 8. If the fixed length counter reaches a preset value, As a signal unit for notifying the state of the full bobbin 8 to be fried, for example, a lamp (not shown) is turned on.

On the other hand, on the doffing dolly 5 side, the running / stopping of the running table 22, the movement of the operation table 23, the operation of the revolving section 26, the yarn cutting section 43, the yarn holding section 44, and the winder operating section 45 are controlled. A control unit (not shown) is provided, and the doffing order of each winding machine 2 is set in advance in the control unit, and a detection unit such as an optical sensor for detecting lighting of the lamp is provided.

The embodiment of the present invention is configured as described above, and the doffing work will be described with reference to the drawings.

In FIG. 1, the bobbin 8 mounted on the spindle 9 of each winding machine 2 is wound with the yarn 16 which is sequentially fed. At this time, the empty bobbin 8 is previously fitted into the bobbin supporting rod 19b of each bobbin stand 19.

On the other hand, the doffing trolley 5 travels in front of the winder 2 according to the order set in the control unit, is stopped, and stands by.

Then, when the yarn 16 wound on the bobbin 8 reaches a predetermined length by the count of the fixed length counter, a lamp as a signal part is turned on, and the lighting of this lamp is detected by an optical sensor as a detection part of the control part. Upon detection, the control unit is activated and the doffing work is started.

That is, the control section extends the air cylinder 41 for moving the operation console 23, and moves the operation console 23 rearward toward the front surface of the winder 2. By the rearward movement of the operation table 23, as shown in FIG. 7, the guide grooves of the yarn cutting section 43 and the yarn holding section 44 are formed.
50 and 55 are moved to the positions corresponding to the yarns 16, respectively, and the winder operation section 45 is moved to a position close to the operation levers 12 and 13.

Then, as shown in FIG. 6, the air cylinder 47 for the yarn guide plate 48 is extended to operate the yarn guide plate 48 (a).
The traverse guide shown in Fig. 2 after being moved in the direction of the arrow
Remove the thread 16 from 15. At this time, the piston rod of the air cylinder 66 of the rocking operation portion 62 is shortened, the rocking operation body 65 is rotated, and the rocking operation lever 12 is projected by the operation arm 64 as shown in FIG. The end is pushed in the direction of the arrow (b), where the support base 10 is swung around the support shaft 11, and the yarn winding portion 37 of the full bobbin 8 is separated from the touch roller 14 in the doffing position. Be moved to. As shown in FIGS. 1 and 2, each receiving peg 27 is positioned on the front side extension of the spindle 9 and the bobbin stand 19, respectively, and the switching operation lever is provided.
The protruding end of 13 is located between the bifurcated operating pieces 67. Further, as shown in FIG. 7, the yarn 16 is located in the guide groove 50 of the yarn guide plate 48 and has passed just before the opening 59 of the suction tube 60, and after starting suction by the suction tube 60. , The air cylinder is expanded and contracted to reciprocally move the interlocking rod 51, and the scissors body 49 is set to the cutting posture, and then returned to the standby posture.
Disconnect. At this time, the yarn 16 sent in is sucked and held by the suction tube 60 as shown in FIG.

Next, the air cylinder 31 for the pusher member 32 is extended to move the take-out piece 36 to the full bobbin 8 in the retracted posture shown in FIG. 6 so as not to interfere with the full bobbin 8 and the empty bobbin 8 of the take-out piece 36.
And insert it between the empty bobbin 8. Then, as shown in FIG. 8, the piston rod of the air cylinder 47 is shortened to move the yarn guide plate 48 in the direction of (c) arrow and return to the standby position. At this time, the rotary actuator 69 of the switching operation unit 63 shown in FIG. 3 is operated to rotate the switching operation arm 68 upward in the direction of (d) arrow as shown in FIG.
The projecting end of the switching operation lever 13 is pushed up by the operation piece 67, the rotation of the spindle 9 is stopped, and the chucked state with respect to the bobbin 8 is released and brought into a stopped state. Thereafter, the rotary actuator 34 is operated to rotate the take-out piece 36 in the direction of the arrow (e) to the engaging posture as shown in FIG. 8, and the piston rod of the air cylinder 31 is shortened to take out the take-out piece. The pieces 36, 36a are locked to the rear side surfaces of the yarn winding portions 37 of the full bobbin 8 and also to the rear end edge of the empty bobbin 8, so that the pieces 36, 36a are moved forward. , The full bobbin 8 and the empty bobbin 8 are the spindle 9 and the bobbin supporting rod 19b.
Is pushed forward from the spindle 9 and the bobbin supporting rod 19
Each receiving peg 27 that is separated from b and is located in the front
And is held by each receiving peg 27. . A bobbin take-out mechanism is constituted by the air cylinder 31, the pusher member 32, the rotary actuator 34, the rotary shaft 35, the take-out pieces 36, 36a and the like shown in FIG.

Next, the electric motor 29 of the revolving unit 26 is operated to rotate the rotating plate 28 180 ° in the direction of the arrow (f) as shown in FIG. The positions of the bobbin 8 and the empty bobbin 8 are exchanged. At this time, the rotary actuator 34 shown in FIG. 4 is operated to return the take-out piece 36 to the retracted posture. Then, air cylinder 31
When the piston rod of is extended, the push-back piece 33 is locked to the front end edges of the empty bobbin 8 and the full bobbin 8,
With the backward movement of 33, the empty bobbin 8 and the full bobbin 8
Extruded rearward from each receiving peg 27, detached from each receiving peg 27, transferred to the spindle 9 and bobbin supporting rod 19b located rearward, and the full bobbin 8 and the empty bobbin 8 are exchanged with each other. , Again held by the spindle 9 and the bobbin holding rod 19b. Here, the air cylinder 3
A bobbin return mechanism is constituted by 1, the pusher member 32, the push-back piece 33, and the like.

Next, the air cylinder 31 is shortened to return the pusher member 32 to the standby position, and thereafter, as shown in FIG. 10, the electric motor 29 of the revolving unit 26 is operated to rotate the rotary plate in the direction of (g) arrow. 28 is rotated so that both receiving pegs 27 are in a retracted posture so as not to interfere with the rotating arm 53. Next turn arm 53
(H) Rotate in the direction of the arrow to take the thread hooking posture, extend the air cylinder 47, and move the thread guide plate 48 to (a).
It is extruded in the direction of the arrow, and is in a guide posture in which the guide groove 50 guides the yarn 16 to a predetermined position. After that, the rotary actuator 69 of the cutting operation portion 63 shown in FIG. 3 is operated, the switching operation arm 68 is rotated downward in the direction of (i), and the protruding end of the switching operation lever 13 is moved by the operation piece 67. When pushed down, the empty bobbin 8 is chucked by the spindle 9 and brought into a rotational drive state in which the empty bobbin 8 rotates integrally with the spindle 9.

Next, the air cylinder 66 of the rocking operation portion 62 shown in FIG. 3 is extended to rotate the rocking operation body 65, and the operation arm thereof is rotated.
As shown in FIG. 11, the projecting end of the rocking operation lever 12 is pushed in the direction of arrow (N) by 64, and the support base 10 is supported by the spindle.
The bobbin 8 is swung around 11 and the outer peripheral surface of the empty bobbin 8 is a touch roller.
It is moved to the position of the winding position where it abuts on 14. At this time, the yarn 16 is held at a predetermined position in a passing manner by the guide full 50 of the yarn guide plate 48 and the guide full 55 of the guide plate 56, and is formed in advance on the outer peripheral surface of the empty bobbin 8 in FIGS. The yarn 16 is locked to the blade cut 71 shown in the figure. Then the 12th
From the state shown in the figure, the air cylinder of the yarn holding section 44 is expanded / contracted to reciprocally move the interlocking rod 58, and the scissors 57
After returning to the standby position after cutting, the yarn 16 is cut, and the winding of the yarn 16 is started. After this cutting, the suction of the suction tube 60 is stopped. Here, the yarn cutting unit 43 and the yarn holding unit 44 constitute a yarn hooking mechanism that hooks the empty bobbin 8.

After that, as shown in FIG. 13, the air cylinder 47 is shortened, the yarn guide plate 48 is placed in the standby posture, and then the air cylinder 41 is shortened to move the operation console 23 forward and return to the initial position. Let Thereafter, as shown in FIG. 13, the rotating arm 53 is rotated in the direction of the arrow (L) to be in the standby posture. Next, the electric motor 29 of the revolving unit 26 is operated to return each receiving peg 27 to the initial standby posture, and the doffing work is completed.

After that, the doffing dolly 5 travels on the rails 3 and 4 in front of the winder 2 which is the next doffing target, stops and stands by,
Again, the same operation as above is sequentially repeated.

Then, as shown in FIG. 14, when the doffing work is completed, the full bobbin 8 transferred to the bobbin stand 19 is carried out to the next step by a separate transport mechanism, and the empty bobbin 8 is again held and rejected. .

In the revolving unit 26 shown in FIG. 4, the air cylinder 31 is used as a means for moving the pusher member 32 in the front-back direction, but a screw mechanism or the like for changing the rotation of the motor into a linear motion may be used. Alternatively, the rotary actuator 34 may be replaced with a motor or a cylinder, which is not limited to the embodiment. Further, although the manually operated winder 2 is shown in the embodiment, the automatic winder 2, that is, the winder 2 is shown.
In contrast to the winder 2 having a bobbin take-out mechanism for driving and stopping the bobbin 8 and the empty bobbin 8,
Alternatively, a push button switch or the like on the side may be operated.

Further, the shape of each receiving peg 27 and the bobbin supporting rod 19b is not limited to the shape of the embodiment, and a taper guide for inserting the bobbin 8 may be provided on the free end side facing each other.

Further, the winding machine operating unit 45 may be provided on the winding machine 2 side, but it is necessary to provide it on each winding machine 2 and, as shown in the embodiment, the winding machine operation section 45 is provided on the doffing carriage 5 side for each winding machine. It can be used for the machine 2 and is preferable in terms of cost.

According to the automatic doffing device of the present invention, the bobbin holding rod that holds the empty bobbin in parallel with the bobbin mounted on the spindle of the winder is on the same side as the spindle side of the winder. And in the vicinity of the spindle, in front of the winder,
A revolving portion having a pair of receiving pegs respectively positioned on the front side extensions of the spindle and the bobbin holding rod, and the positions of both receiving pegs being reversible around each other about the axis parallel to the axis of the spindle. A doffing trolley equipped with the bobbin is provided so as to be able to stop traveling, and the doffing trolley simultaneously moves both bobbins from the spindle and bobbin holding rod side to each peg for receiving by bobbin axial movement. A mechanism and a bobbin return mechanism that simultaneously transfers from each receiving peg side to the spindle and bobbin holding rod are provided, and a full bobbin and an empty bobbin are simultaneously transferred to both receiving peg sides by the bobbin take-out mechanism. After reversing the revolving part, if the bobbin return mechanism returns it to the spindle and the bobbin holding rod side at the same time, the doffing work is completed. Can delete the number of steps doffing operations, improved working efficiency, here it can be shortened working time in a doffing operation. The empty bobbin may be held on the bobbin holding rod on one side of the winder, and it is not necessary to provide an empty bobbin storage section or empty bobbin supply mechanism on the doffing trolley side, and the structure can be simplified and made compact. . Further, there is an advantage that the bobbin holding rod can also be used for holding a full bobbin.

In addition, since the position of the pair of receiving pegs provided in the revolving part of the doffing trolley can be reversed around the axis parallel to the axis of the spindle, the structure can be simplified and compact from this point as well. Can be achieved.

Further, by providing the doffing cart with the bobbin take-out mechanism and the bobbin returning mechanism, it is not necessary to equip the individual winding machines with those mechanisms, and the dual use can be achieved and the entire apparatus can be made compact.

Similarly, by providing the doffing trolley with a winder operating section and a thread hooking mechanism, it is not necessary to equip each winder with each of those mechanisms. Can be achieved.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is an overall perspective view, FIG. 2 is a front view of a winder, and FIG. 3 is a perspective view of a doffing trolley,
FIG. 4 is a perspective view of the traveling platform, FIG. 5, FIG. 6, FIG. 8, FIG. 9, FIG. 10, FIG. 10, FIG. Fig. 12 is a perspective view of the main part of Fig. 6,
FIG. 14 is a perspective view of a main part in FIG. 11, and FIG. 14 is a perspective view of the winder after completion of the doffing work. 2 ... Winding machine, 5 ... Doffing cart, 8 ... Bobbin, 9 spindle, 16 ... Thread, 19 ... Bobbin stand, 19b ... Bobbin support rod, 22 ... Traveling platform, 23 ... Control console, 26 ... Revolving part, 27 ... Receiving peg, 31 ... Air cylinder, 32 ... Pusher member, 33 ... Push-back piece, 34 ... Rotary actuator, 36 ... Take-out piece, 41 ... Air Cylinder, 43 …… Yarn cutting section, 44 …… Yarn holding section, 45 …… Winding machine operation section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-63-82286 (JP, A) JP-A-59-92873 (JP, A) JP-A-48-54239 (JP, A)

Claims (2)

[Claims] 1. An automatic doffing device for replacing a full bobbin of a winding machine in which a yarn is wound with an empty bobbin, wherein (A) an empty bobbin is installed in parallel with a bobbin mounted on a spindle of the winding machine. The bobbin holding rod for holding is provided on the same side as the spindle side of the winding machine and in the vicinity of the spindle. (B) In front of the winding machine, on the front side extension of the spindle and the bobbin holding rod, respectively. A doffing trolley provided with a pair of receiving pegs positioned and having a revolving portion in which the positions of both receiving pegs can be inverted with respect to each other about an axis parallel to the axis of the spindle, is provided so that traveling can be stopped. And, the doffing trolley comprises a bobbin take-out mechanism that simultaneously transfers both bobbins from the spindle and bobbin holding rod side to each receiving peg by axial movement of both bobbins, and a spindle and a spindle from each receiving peg side. Automatic doffing apparatus characterized by a bobbin return mechanism transferring simultaneously the bottle holding rod made is provided. 2. The doffing carriage is provided with an operation table that can be retracted and retracted toward the front of the winder, and the operation table performs a rotation / stop operation of a spindle and a chucking / release operation of a bobbin with respect to the spindle. The automatic doffing device according to claim 1, further comprising: a take-up machine operating portion, and a yarn hooking mechanism that cuts and holds the yarn and holds the yarn on an empty bobbin mounted on the spindle. apparatus.