JP2874551B2 - Automatic doffing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic doffing apparatus for replacing a full bobbin wound by a yarn winder with an empty bobbin.

[0002]

2. Description of the Related Art In recent years, various automatic doffing apparatuses have been proposed from the viewpoint of reducing labor due to large packaging and the like, improving productivity by shortening the doffing operation time, and reducing the number of workers.

For example, in the automatic doffing apparatus described in Japanese Patent Application Laid-Open No. 4-59568, a bobbin stand is provided on the side of the winding machine, and an empty bobbin is inserted in the bobbin stand in advance. Then, the full bobbin and the empty bobbin which were fully wound on the winding machine side were simultaneously transferred to the pegs provided on the doffing trolley by the bobbin removal mechanism provided on the doffing trolley, and both receiving pegs were inverted. Thereafter, the bobbin returning mechanism mounts a full bobbin on the bobbin stand and an empty bobbin on the winder spindle. Thus, the doffing work was performed automatically.

[0004]

However, in the doffing apparatus described in Japanese Patent Application Laid-Open No. 4-59568, the bobbin stand for depositing empty bobbins is installed on the side of the winding machine. The operation around the machine becomes complicated. Also, it is necessary to leave full bobbins at the bobbin stand,
That requires a lot of space. Therefore, when the winder is installed, not only the positioning between the winder and the bobbin stand becomes complicated, but also there is a drawback that the space occupied by one winder becomes large.

[0005] In view of the above problems, the present invention aims at simplifying the winding around the winding machine, reducing the arrangement space occupied by one winding machine, and improving the efficiency of doffing work. It is an object to provide a possible automatic doffing device.

[0006]

According to the present invention, there is provided an automatic doffing apparatus for replacing a full bobbin of a winding machine on which a yarn is wound with an empty bobbin. Bobbin holding rod (A) for holding an empty bobbin at a position facing a bobbin mounted on a spindle of
And a bobbin stand having a bobbin holding rod (B) for storing a full bobbin disposed in parallel with the bobbin stand. A doffing trolley having a receiving peg movable in parallel is provided so as to be able to travel and stop freely, and the doffing trolley has a take-out mechanism for transferring a full bobbin from the spindle side to the receiving peg, and the receiving peg has turned. And a pushing mechanism for transferring a full bobbin to the bobbin holding rod (B).

The take-out mechanism and the push-out mechanism may be provided at any position on the doffing cart.

[0008] Further, the doffing truck has an operation table (A) and an operation table (B) that can move forward and backward toward the front of the winder.
The operation console (A) has a thread hooking mechanism that cuts a yarn, sucks and holds the yarn, and hooks an empty bobbin mounted on a spindle. )
Has a winding machine operation unit for performing a rotation stop operation of a spindle and an operation for releasing a chuck of a bobbin with respect to the spindle, and a rotation table unit for reversing the attitude of an operation table (B) between a winding machine side and a bobbin stand side. Have.

In addition, it is desirable to provide a power supply device above the bobbin stand.

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

[0011]

In the above-mentioned automatic doffing apparatus, the doffing truck is run in front of the winder and stopped at a predetermined position, and the full bobbin is moved to the receiving peg on the doffing truck side by the operation of the bobbin unloading mechanism. In turn, the receiving peg is then moved parallel to the winder, for example, parallel.

[0012] The receiving peg, which has been translated, is turned substantially 180 ° and turned to the side of the bobbin stand, and the full bobbin on the receiving peg is moved by the bobbin pushing mechanism to the bobbin holding rod (B) on the side of the bobbin stand. Transfer to Next, the receiving peg is translated, for example, in the direction opposite to the above, and the empty bobbin prepared on the bobbin holding rod (A) of the bobbin stand is transferred to the receiving peg by the bobbin take-out mechanism. In this state, the receiving peg is translated. This position is the same as the position where the full bobbin is transferred to the bobbin holding rod (B) described above. At this position, the receiving peg is inverted in the opposite direction to the above, and is translated toward a predetermined spindle. Then, the bobbin pushing mechanism transfers the empty bobbin to the spindle of the winder, thereby completing the doffing operation.

Further, since the empty bobbin is held in advance on a bobbin stand provided at a position facing the spindle of the winding machine, it is not necessary to install an empty bobbin storage section on the doffing truck side. Further, since the positions of the full bobbin and the empty bobbin can be exchanged by inverting the receiving peg portion, it is not necessary to separately configure the full bobbin take-out mechanism and the empty bobbin supply mechanism.

The doffing truck is provided with a winder operating section for operating a winder, a thread hooking mechanism for threading an empty bobbin mounted on a spindle, a bobbin extracting mechanism, and a bobbin returning mechanism (extrusion mechanism). Thus, it is not necessary to provide each of the winding machines with each of them, and it is possible to use the winding machines together.

[0015]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 6 show an automatic doffing apparatus according to one embodiment of the present invention. A plurality of winders 2 are arranged side by side at a predetermined interval on the winder stand 1. Also,
On the front side (front side) of each winder 2, a doffing truck that runs on rails 3 and 4 laid along the direction in which the winders 2 are arranged, that is, in the left-right direction in FIG. 5 are provided.

A winder stand 1 is provided in front of the winder 2.
And a bobbin holding rod (A) 7 that holds an empty bobbin so as to face the winder 2, that is, at a position facing the spindle of the winder. And a bobbin holding rod (B) 8 to be deposited on a full bobbin. The bobbin holding rods (A) 7 and the bobbin holding rods (B) 8 have a predetermined interval and are arranged alternately and in parallel.

As shown in FIGS. 2 and 3, the winding machine 2 has a substrate 9 arranged side by side on the winding machine table 1, a spindle 11 to which a bobbin 10 is detachably mounted, and a drawing is omitted. And a rotation drive mechanism including a motor for driving the spindle 11 to rotate and a power transmission mechanism.

The spindle 11 has an axis extending in the front-rear direction of the winding machine, and is supported at its rear end side by a support shaft (not shown) attached to the substrate 9 so as to be swingable about the axis. I have.

The handle 12 connects the spindle 11 to the substrate 9
The posture of the bobbin 10 is changed between a winding posture and a doffing posture by swinging operation around the above-mentioned support shaft, and is supported inside the spindle 11 so as to be rotatable and slidable. By pulling the handle 12 in the direction of the arrow in FIG. 3, that is, in the direction away from the take-up stand, the chucking state of the bobbin 10 and the spindle 11 is released, and the bobbin 10 and the spindle 11 become free to rotate and the rotation of the spindle 11 is stopped. Has become. By pushing the handle 12 in the opposite direction, the bobbin 10 is chucked to the spindle 11 and can be rotated together with the spindle 11.

Reference numeral 13 denotes a lock lever which projects forward.
The spindle 11 is held (locked) at a position where the spindle 11 is swung to a doffing posture by engaging with a lock release lever 13 '. The release of the holding is performed by moving the lock release lever 13 ′ to release the engagement with the lock lever 13. The box 14 is attached so as to protrude from the substrate 9, and the box 14 is provided with a touch roller 15 and a traverse guide 16 that is reciprocated in the front-rear direction.

As shown in FIGS. 1, 4, and 5, the doffing truck 5 is a traveling platform 18 that travels along rails 3 and 4.
And an operation console (A) 19 and an operation console (B) 20 mounted on the traveling platform 18.

On the bottom side of the traveling platform 18, a total of two pairs of wheels 21, 22 rolling along the rails 3, 4 are provided. One pair of wheels 22 is a drive wheel driven via an electric motor, a power transmission mechanism or the like (not shown) mounted on the traveling platform 18, and the other pair of wheels 21 is a driven wheel. The wheels on the rail 3 are configured as grooved wheels that are rolled on the rail 3 in a state of being fitted to the rail 3.

The front wheels (wheels rolling on the rail 4) of the wheels 21 and 22 may be used as driving wheels, and the rear wheels (wheels rolling on the rail 3) may be used as driven wheels. Instead of the rails 3 and 4, a track may be formed on the floor with a magnetic plate and the vehicle may travel while detecting the magnetic plate. In addition, the traveling and stop position control of the traveling platform 18 is performed by running the vehicle by an AC motor, counting pulses by encoders provided on the wheels 21 and 22, and, when a predetermined number of pulses is reached, applying a brake and stopping at a desired position. It may be. Further, a control method using a DC servomotor or an AC servomotor may be employed. Furthermore, the method of stopping is not limited to the method of electrically braking the wheels 21 and 22 and the motor, but may be the method of mechanical braking.

On the traveling platform 18, an operation platform (A) 19 is provided.
The operation table (A) 19 is disposed movably in the front-rear direction along a guide rail 27 on the traveling table 18, and the operation table (A) 19 is provided on the traveling table 18 in parallel with the operation table (A) 19. Is performed by the cylinder 24. That is, an L-shaped bracket 26 fixed to an operation table (A) 19 is fixed to the tip of a piston rod 25 that can move forward and backward in the cylinder 24 in a cantilever manner.
Is transmitted to the operation console (A) 19, and the operation console (A) 19 is moved forward and backward.

The operation console (A) 19 is provided with a plurality of main arms 28 (five in this embodiment). The main arm 28 is rotatably supported via a support shaft 29 extending from a housing 30 fixed to the operation console (A) 19. Each main arm 28 is swingable by a rotary cylinder (not shown), and is freely changeable between a standby posture shown in FIG. 5 and a threading posture shown in FIG.

A crank-shaped suction pipe 31 is rotatably provided at the tip end of the main arm 28. The suction pipe 31 can be shifted between the suction position and the threading position with the change in the position of the main arm 28 around the center of rotation 50. Posture is changed.

The inside of the suction tube 31 is formed in a hollow shape, and is connected to a suction port of a vacuum pump (not shown). It is also possible to adopt a suction structure using an aspirator or the like instead of the vacuum pump.

As shown in FIG. 6, a scissor body 32 is provided at the distal end of the suction tube 31 so as to be able to move forward and backward and open and close.
Further, an L-shaped guide 33 fixed so as to protrude from the operation table (A) 19 is provided on a lower side of the suction tube 31. Another scissor body 34 is provided on the upper surface of the L-shaped guide 33, and the scissor body 34 is configured to be openable and closable by a retractable operation of a cylinder (not shown) at the rear of the connecting plate 35.

The turntable 23 is provided on the upper surface of the travel base 18 via a guide rail 36 on the travel base 18 so as to be movable back and forth by a cylinder (not shown). Turntable 2
On the upper part 3, a rotary table (not shown) is configured so that the attitude can be freely changed between a standby attitude shown in FIG. The 180 ° turning direction is preferably a right turning from the standby state of FIG.

On the turntable of the turntable 23, a support table 37 is fixed, and the support table 37 is provided with a guide rail 38 and a cylinder 39. An operation console (B) 20 is provided on the guide rail 38. Cylinder 39
The tip of the rod 40 has a protrusion 4 from the operation console (B) 20.
The operation table (B) 20 is freely movable on the guide rail 38 by the expansion and contraction operation of the rod 40 of the cylinder 39.

The operation console (B) 20 is provided with a plurality of pegs 42 (five in this embodiment). Peg 42
Is rotatably supported by a housing 44 fixed to the operation console (B) 20 by a support shaft 43. Peg 42
Can be freely changed between a standby posture shown in FIG. 5 and a doff posture (doffing posture) shown in FIGS. 8 and 9 by a cylinder not shown.

A finger 48 for operating the handle 12 on the winder side is provided at the tip of the peg 42, and is configured to be able to move forward and backward by a cylinder (not shown). That is, the handle 12 is operated to open and close the chuck of the winding machine.

A pusher portion 46 having a bobbin grip portion 45 is provided on the outer periphery of the peg 42 so as to be able to move forward and backward on the peg 42. At the front end of the bobbin gripper 45, a pawl 47 which is opened and closed by a cylinder (not shown) is provided.

The operation of the automatic doffing apparatus constructed as described above will be described together with its operation. As shown in FIG. 3, the bobbin 1 mounted on the spindle 11 of each winder 2
The yarn Y is sequentially fed to 0 and wound up. At this time, the empty bobbin 10 is inserted in advance into the bobbin holding rod (A) 7 of the bobbin stand 6.

On the other hand, the doffing truck 5 travels in front of the winder 2 in the order set in the control device (not shown), stops at a predetermined position, and waits. When the yarn Y wound on the bobbin 10 reaches a predetermined length by the count of the fixed length counter, a signal is sent from the control device, and the control unit 60 (FIG. 5) of the doffing truck 5 is operated to perform the doffing operation. Be started.

That is, as shown in FIGS. 1 and 4,
The operation consoles (A) 19 and (B) 20 are moved toward the front of the upper and lower rows of the predetermined winding machine 2 based on a signal from the control device. This movement causes the suction tube 31 to move the winding yarn Y
Is cut by the scissors 34 shown in FIG. 6 (FIG. 7). By this operation, the yarns Y sequentially fed are sucked and held in the suction pipe 31 (FIG. 8).

The operation of the scissors 34 is timed by detecting that the traversing thread Y is inside the scissors 34 by a sensor (for example, an optical sensor) not shown.

Next, the peg 42 of the operation table (B) 20 is swung, the handle 12 of the winder 2 is engaged with the finger 48 at the tip of the peg 42, and the spindle 11 of the winder 2 is doffed. Position (FIG. 8). The spindle 11 is locked and fixed at a doff position (a doffing posture position).

Next, the finger 48 is pulled in the direction of the arrow in FIG. 9, that is, in the direction of the anti-winding machine 2, to release the chucked state between the spindle 11 and the bobbin 10, and at the same time, the rotation of the spindle 11 is stopped.

Thereafter, the pusher 46 is advanced in the direction of the winder 2 to approach the full bobbin 17. Next, the pawl 47 is operated by operating the bobbin gripping portion 45 to grip the bobbin 10. Pusher 4 while holding bobbin 10
6 is retracted and the full bobbin 17 is moved to the spindle 1 of the winder 2.
Transfer from 1 to peg 42 (FIG. 9).

Next, the finger 48 is turned and the cylinder 3
9 to operate the piston rod 40 for shortening, and the operation console (B)
20 is moved to the right side of FIG. Furthermore, the operation console (B)
20 is retracted and the turntable 2 is rotated by a motor (not shown).
3 to rotate the operation console (B) 20 as shown in FIG.
Rotate (turn) by 0 °. Bobbin stand 6 at this position
The pusher 46 is moved toward the bobbin holding rod (B) 8 to transfer the full bobbin 17 on the peg 42 to the bobbin holding rod (B) 8. The bobbin gripper 45 is operated, the pawl 47 is operated to release the bobbin 10 (full bobbin 17), and the pusher portion 46 is moved in a direction away from the bobbin stand 6.

Next, the piston rod 40 of the cylinder 39 is extended to move the operation table (B) 20 to the left in FIG. 1 as indicated by the dashed line arrow in FIG. At this position, the pusher unit 46 is moved in the direction of the bobbin stand 6, the bobbin gripping unit 45 is operated, and the pawl 47 is operated.
The empty bobbin 10 held by the bobbin holding rod (A) 7 of the bobbin stand 6 is gripped. In this state, the pusher portion 46 is moved in a direction away from the bobbin stand 6 as shown by the solid arrow in FIG. 11, and the empty bobbin 10 held by the bobbin holding rod (A) 7 is transferred to the peg 42 with the movement. .

Next, the piston rod 40 of the cylinder 39 is shortened to move the operation console (B) 20 rightward in FIG. Further, the turntable 23 is rotated, and the operation table (B) 20 is turned (turned) by 180 ° in a direction opposite to that of FIG.
Let it. At this position, the turntable 23 is moved in the direction of the winder 2 along the traveling rail 36, and then the piston rod 40 of the cylinder 39 is extended to move the operation table (B) 20 to the left in FIG. . By this operation, the winding machine 2
Handle 12 and the doffing truck finger 48 engage. Further, the axis of the peg 42 and the axis of the spindle 11 coincide with each other.

At this position, as shown in FIG. 12, the pusher section 46 is advanced, and the empty bobbin 10 on the peg 42 is transferred to the spindle 11 of the winder 2. Bobbin gripper 4
After operating the pawl 47 and operating the pawl 47 to release the bobbin 10, the pusher 46 is retracted. Then finger 4
When the spindle 8 is moved forward, the empty bobbin 10 is chucked by the spindle 11 and is brought into a rotational driving state in which the spindle rotates with the spindle 11.

Next, the cylinder rod 40 of the cylinder 39
And the operation console (B) 20 is moved rightward in FIG. Subsequently, as shown in FIG. 13, the main arm 28 is swung from the standby position to the thread hooking position. At this time, the center of rotation 50 of the suction tube 31 at the distal end of the main arm 28 is at a position that coincides with the axis of the spindle 11 of the winder 2.

Next, the suction pipe 31 sucking the yarn Y rotates around the spindle 11, and the yarn Y held by the suction pipe 31 is inserted into the blade cut groove S of the empty bobbin 10 on the spindle 11. The yarn Y sandwiched between the blade cut grooves S is cut on the downstream side of the groove S by the cutter 32 shown in FIG. After this operation, the yarn Y is wound around the empty bobbin 10. After the cutting, the suction of the suction tube 31 is stopped.

Next, the suction pipe 31 is turned in the opposite direction to the operation shown in FIG. 13, and the main arm 28 is turned to the standby position. Subsequently, the pin rod 40 of the cylinder 39 is extended to move the operation console (B) 20 to the left in FIG. Here, the finger 48 and the handle 12 of the winder 2 are engaged, and the finger 48 is turned backward. Then, the lock lever 13 is operated by operating the lock release lever 13 ′, and the spindle 11 is set in a swingable state. This lock release lever 13 ′ may be installed on the doffing cart 5.

Next, as shown in FIG. 14, the peg 42 is turned to the standby position and posture, and the spindle 11 is returned to the winding position. The yarn Y enters the traverse guide 16, and winding is started from this state. After that, the console (A) 19,
And the operation console (B) 20 is moved to return to the initial position. Thereafter, the doffing truck 5 travels on the rails 3 and 4 and in front of the winder 2 to be doffed, stops and waits, and the same operation as described above is sequentially repeated again.

Then, as shown in FIG. 15, the full bobbin 17 transferred to the bobbin stand 6 after the doffing operation is completed.
Is separately carried out to the next step by a transport mechanism, and the empty bobbin 10 is inserted and held on the bobbin holding rod (A) 7 again. That is, this is the initial form of the doffing operation shown in FIG.

FIG. 17 schematically shows the above series of operations.

FIGS. 15 and 16 show the bobbin holding rod 7,
Although 8 is illustrated by a round bar, it may be a square bar. In addition, if the winding machines 2 are installed so as to face each other, that is, a double-sided machine, the bobbin stand 6 disposed therebetween can be commonly used.
The bobbin holding rod (A) 7 and the bobbin holding rod (B) 8 may be extended to both sides. Further, in the case of the double-sided machine, for example, as shown in FIG. 18, a turntable 61 capable of turning around, for example, 180 ° around the center line of the bobbin stand is installed at one end of the bobbin stand 6, and 5 is run on the turntable 61, and the turntable 61 is turned by 180 °,
The doffing work for the winding machine 2 on the facing winding machine stand 1 is also possible, and a single doffing truck 5 can handle a large number of winding machines 2. In this case, and also in the case of the embodiment apparatus other than the above-described duplex machine, the bobbin stand 6
By providing a power supply device 62 (for example, a cable bear) on the upper part of the vehicle, the doffing truck 5 can be freely moved.

Further, the bobbin stand 6 is mounted on the winding machine stand 1.
, The separation of the winding machine 2 and the bobbin stand 6 simplifies the top of the winding machine stand 1, thereby conveying the full bobbin 17 after the doffing operation is completed. Can be easily performed, and improvement in workability can be expected. Further, in the apparatus of the present invention, since the bobbin stand 6 does not need to be provided on the winder unit 1, the number of the winders 2 per unit length of the winder unit 1 can be increased. It is possible to improve productivity while measuring space.

[0053]

As described above, when the automatic doffing apparatus according to the present invention is used, the winding machine itself and the structure around the winding machine are simplified, and the installation space occupied by one winding machine is reduced. , A series of doffing operations can be automated, and the efficiency of the doffing operations can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an automatic doffing apparatus according to one embodiment of the present invention.

FIG. 2 is a schematic perspective view of a winder of the apparatus of FIG.

FIG. 3 is an enlarged perspective view of one winder of FIG. 2;

FIG. 4 is an enlarged side view of the device of FIG. 1;

FIG. 5 is an enlarged perspective view of the doffing cart of the apparatus of FIG. 1;

FIG. 6 is an enlarged perspective view of the suction tube section of FIG.

FIG. 7 is a partial perspective view showing one state of the doffing operation of the apparatus of FIG. 1;

FIG. 8 is a perspective view showing a state next to FIG. 7;

FIG. 9 is a perspective view showing a state next to FIG. 8;

FIG. 10 is a perspective view showing a state next to FIG. 9;

FIG. 11 is a perspective view showing a state next to FIG. 10;

FIG. 12 is a perspective view showing a state next to FIG. 11;

FIG. 13 is a perspective view showing a state next to FIG. 12;

FIG. 14 is a perspective view showing a state next to FIG. 13;

15 is an enlarged partial front view of the bobbin stand of the apparatus shown in FIG. 1 (full bobbin holding state).

16 is an enlarged partial front view of the bobbin stand of the apparatus shown in FIG. 1 (in an empty bobbin holding state).

FIG. 17 is a schematic plan view schematically showing a series of doffing operations.

FIG. 18 is a schematic plan view of an apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding machine stand 2 Winding machine 3 Rail 4 Rail 5 Doffing car 6 Bobbin stand 7 Bobbin holding rod (A) 8 Bobbin holding rod (B) 9 Substrate 10 Bobbin (empty bobbin) 11 Spindle 12 Handle 13 Lock lever 13 'Lock release lever 14 Box 15 Touch roller 16 Traverse guide 17 Full bobbin 18 Traveling stand 19 Operating table (A) 20 Operating table (B) 21 Follower wheel 22 Drive wheel 23 Turntable 24 Cylinder 25 Cylinder rod 26 L-shaped fitting 27 Guide rail 28 Main arm 29 Support shaft 30 Housing 31 Suction tube 32, 34 Scissors 36 Guide rail 37 Support table 38 Guide rail 39 Cylinder 40 Cylinder rod 41 Projection 42 Receiving peg 43 Support shaft 44 Housing 45 Bobbin grip 46 Pusher47 pawl 48 finger 50 center of rotation 60 control unit 61 turntable 62 power supply device Y thread S blade cut groove

Claims (2)

(57) [Claims] In an automatic doffing apparatus for replacing a full bobbin of a winding machine on which a yarn is wound with an empty bobbin, an empty bobbin is held at a position facing a bobbin mounted on a spindle of the winding machine. A bobbin stand is provided having a bobbin holding rod (A) for holding a bobbin and a bobbin holding rod (B) disposed in parallel with the holding rod (A) for depositing a full bobbin. A doffing truck having a receiving peg that can rotate substantially 180 ° and can move in parallel with the winding machine is provided so as to be able to travel and stop freely. The doffing truck receives a full bobbin from the spindle side. a take-out mechanism for transferring the peg, and the extrusion mechanism transferring the full bobbin to the bobbin holding rod (B) after the receiving peg is pivoted, a winder
(A) and operation console that can move forward and backward toward the front of the vehicle
(B) is provided, and the operation console (A) cuts the yarn.
While holding the yarn and attaching it to the spindle.
The operation console has a thread hooking mechanism
(B) shows the operation of stopping the rotation of the spindle and the spindle
Take-up unit that performs bobbin chuck release operation
And the attitude of the operation console (B) between the winder side and the bobbin stand side
An automatic doffing apparatus characterized in that it has a rotating table section that is inverted . 2. A power supply device is provided above the bobbin stand.
2. The automatic doffing device of claim 1, wherein the device is dipped .