JPH0772373B2 - Empty bobbin insertion device for spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention provides an empty space on a conveyor arranged below a spindle row of a spinning machine such as a ring spinning machine and a ring twisting machine in parallel with a spindle rail. Prepare a peg tray with a bobbin inserted in advance, after the spinning machine stand is fully loaded, run from one end of the machine stand along the spindle rail, take in the empty bobbin-equipped peg tray on the conveyor, and respond to the full bobbin on the spindle. The present invention relates to an empty bobbin insertion device in a pipe changer, which is transferred to a position and sequentially replaces the empty bobbin on the peg tray with empty bobbins and the full bobbin on the spindle.

(Prior Art) In a spinning machine such as a ring spinning machine and a ring twisting machine, a full bobbin and an empty bobbin on the spindle are moved while moving the pipe changer from one end of the machine stand along the spindle rail after the machine stand is stopped. A pipe changer that automatically replaces
Japanese Patent Laid-Open No. 60-246828.
In the device of Japanese Patent Publication No. 56-8136, a large number of pegs are arranged on the conveyor below the spindle rail at a spindle pitch, and empty bobbins are prepared for insertion on the pegs in advance, and a plurality of grippers are provided. The pipe changing machine provided with the doffing device and the donning device intermittently moves along the spindle rail during the pipe changing work, whereby the full bobbin on the spindle and the empty bobbin on the peg are automatically exchanged.

On the other hand, in the device of Japanese Patent Laid-Open No. 60-246828, a full bobbin lifting device, an empty bobbin lifting device, a full bobbin insertion device,
An empty bobbin insertion device, a full bobbin transfer device, and an empty bobbin transfer device are provided with a pipe changer that continuously travels along the spindle rail when changing pipes, pulling out the full bobbins on the spindle one by one, and empty bobbins from the pegs. One by one, and the full bobbin and the empty bobbin thus pulled out are automatically replaced one by one.

(Problems to be Solved by the Invention) However, as disclosed in Japanese Patent Laid-Open No. 60-52474, a full bobbin sent to a winder process by a conveying means that directly connects the spinning process and the winder process. In the case of sending the bobbin to the spinning process again, attention has been paid to the transfer method using a peg tray due to the advantage of simple mechanism compared to the use of a conveyor. The following problems are involved in interposing the peg tray in the automatic pipe replacement work. That is, in order for the conventional automatic pipe changer to smoothly perform the pipe change work, it is necessary to make the arrangement interval and the spindle pitch of the peg trays with empty bobbins prepared below the spindle rail the same. Accumulation of weight hinders accurate correspondence between the position of the peg tray arranged according to the number of spindles and the spindle position, and in order to achieve accurate position correspondence between this spindle and the peg tray, it is necessary to manufacture a high peg tray. Peg tray arranging means for arranging the peg trays with accuracy and a predetermined pitch is required.

Further, in the configuration of the conventional tube changer, the bobbin transfer time for replacing the empty bobbin and the full bobbin occupies a large proportion of the tube change time, and the tube change work time is prolonged and the machine down time is lengthened. There are also problems.

Configuration of the Invention (Means for Solving the Problems) In the present invention, therefore, an empty bobbin-equipped peg tray is prepared in advance on a conveyor that is arranged below the spindle row of the spinning machine in parallel with the spindle rail. After the pipes are stopped, the machine runs along one side of the machine along the spindle rail, and the empty bobbin-equipped peg tray on the conveyor is taken in, and it is placed above the full bobbin on the spindle and at a position corresponding to the full bobbin. Targeting a pipe changer that sequentially replaces an empty bobbin on a peg tray with an empty bobbin and a full bobbin on a spindle, an empty bobbin gripping member that releasably grips an empty bobbin is attached to the tip of a swing arm that is reciprocally rotated. The rotation path of the empty bobbin gripping member is set on the empty bobbin arrangement area on the spindle, and The arrangement region of the empty bobbin in the transport position of the tray set on the rotation path.

(Operation) That is, while being taken into the running pipe changer,
The empty bobbin on the peg tray with an empty bobbin that has been conveyed and arranged above the full bobbin on the spindle and at a position corresponding to the full bobbin is gripped by the empty bobbin gripping member, taken out from the peg tray, and then inserted on the spindle. This series of operations of gripping, extracting and inserting is performed on the rotating path of the empty bobbin holding member, and the empty bobbin holding and extracting are performed along with the return rotation of the swing arm after the empty bobbin is inserted onto the spindle. Be seen. Such an extremely simple operation mechanism of reciprocating rotation of the swing arm for inserting the empty bobbin leads to downsizing of the pipe changer and increases the empty bobbin insertion speed.

(Example) Hereinafter, one example which materialized the present invention is described based on a drawing.

As shown in FIGS. 1 to 4, the pipe changer 1 runs along a spinning machine base via guide rollers 4 and 5 that engage with rails 2 and guide rails 3 fixed to the spinning machine base. Are supported so that they can travel, and the rails 2 travel along the rails 2 by the engagement action of the pins 6 projecting from the rails 2 at predetermined intervals and the screw rollers 8 driven by the drive motor 7.

A tray guide 10 is extended on the upper surface of the guide rail 3 in parallel with the spindle rail 9, and a conveyor belt 11 is arranged so as to travel in the tray guide 10. A peg tray 13 having substantially the same diameter as the pitch of the spindle 12 is placed on the conveyor belt 11, and the peg tray 13A with an empty bobbin is attached to the spindle 12 before the pipe replacement work.
Is arranged on the conveyor belt 11 in a state substantially corresponding to.

As shown in FIG. 1, a conveyor belt is provided below the pipe changer 1.
A peg tray intake plate 14 for taking in the empty bobbin-equipped peg tray 13A inside the pipe changer 1 and a peg tray transfer plate 15 for delivering the full bobbin-equipped peg tray 13B onto the conveyor belt 11 are arranged before and after the pipe changer 1 in the traveling direction. It is set up. Peg tray intake plate
Numeral 14 is switched and driven to an intake position for engaging the empty bobbin-equipped peg tray 13A on the tray guide 10 and a retracted position shown by a chain line, and the peg tray transfer plate 15 is also switched and driven to a transfer position shown by a solid line and a retracted position shown by a chain line. It An engaging member 82 is disposed above the peg tray intake plate 14 and engages with the top of the empty bobbin E of the empty bobbin-equipped peg tray 13A on the tray guide 10 to incline the empty bobbin E toward the spinning machine base side. .

On the front side of the pipe changer 1 (the side facing the spinning machine), a transfer belt 20 driven by a motor 19 and a twisting and conveying device 16 composed of a pair of linear guide members 21 are arranged, and a peg tray intake plate. The peg tray 13A with an empty bobbin taken in by 14 is conveyed to a position above the full bobbin F on the spindle 12 and at a position corresponding to the full bobbin F, and the peg tray 13 from which the empty bobbin E has been pulled out is placed at this conveyance arrangement position. The peg tray 13B with a full bobbin having the full bobbin F inserted therein is conveyed to the peg tray delivery device 15 at a position almost the same height as the lower part of the spindle 12. At the center of the pipe changer 1, there is a spindle 12
The empty bobbin E is inserted from the empty bobbin-equipped peg tray 13A conveyed above the upper full bobbin F and the empty bobbin E is inserted into the spindle 12 from which the full bobbin F is lifted, and the spindle 17 A full bobbin pulling-up / inserting device 18 for pulling up the full bobbin F from 12 and inserting the full bobbin F into the peg tray 13 conveyed at the same height as the lower part of the spindle 12 is provided.

As shown in FIGS. 1 and 5, the transfer belt 20 of the torsion transfer device 16
Are parallel to the tray guide 10, parallel to the lower part of the spindle 12 and parallel to the spindle rail 9 above the full bobbin F on the spindle 12. The tray guide 10 is wound around a large number of guide pulleys 22 so as to have a traveling portion.
It is set so that the portion running in parallel with the direction of travel of the pipe changer 1 coincides with the traveling direction. The pair of guide members 21 sandwich the pegs of the peg tray 13 and transfer the peg tray 13 to the transfer belt 20.
The peg tray 13 can be conveyed in any posture by being biased to the side. Therefore, the posture of the empty bobbin E or the full bobbin F on the peg tray 13 can be freely changed.

As shown in FIGS. 3 and 4, a bobbin support member 23 is suspended from the upper portion of the pipe changer 1 so as to be swingable back and forth, and a torsion spring 24 constantly urges the torsion transfer device 16 to rotate. Then, it is in contact with the stopper 25. In this state, the lower end bent portion of the bobbin supporting member 23 supports the top of the empty bobbin E of the empty bobbin-equipped peg tray 13A conveyed by the twisting and conveying device 16.

As shown in FIGS. 3 and 4, on the inner surface of the rear wall of the pipe changer 1, a pair of support shafts 26 and 27 are vertically arranged parallel to the spindle rail 9. A traveling body 28 equipped with a bobbin removing / inserting device 17 and a full bobbin removing / inserting device 18 is slidably supported.

Explaining the empty bobbin extracting / inserting device 17, a support shaft 29 is rotatably supported on the upper part of the traveling body 28, and arms 30 are fixed to both ends of the supporting shaft 29 protruding to the outside of the traveling body 28. At the same time, the bobbin gripping device 31 is rotatably supported between the ends of the bobbin. A rotary shaft 32 operatively connected to the drive motor 7 is disposed in the center of the traveling body 28. As shown in FIG. 6, the rotary shaft 32 is rotated by a cam 83 and a fixed shaft on the rotary shaft 32. By the cam action of the cam lever 85 on 84 and the cam follower 85a, the sector gear 8 on the fixed shaft 86
It is transmitted to the gear 33 on the support shaft 29 via 7 and thereby the bobbin holding device 31 supported between the distal ends of the arms 30 is pivotally arranged between the bobbin receiving position and the empty bobbin releasing position.

A tubular gear 34 is rotatably supported on the support shaft 29, and a lever 35 is fixedly attached to one end thereof. One end of the rod 36 is rotatably connected to the tip of the lever 35, and the other end is rotatably connected to the bobbin holding device 31. gear
34 is meshed with a sector gear 88 on a fixed shaft 86, and rotation of the rotary shaft 32 is caused by rotation of a cam 89 on the rotary shaft 32 and a fixed shaft 84.
The cam action of the upper cam lever 90 with the cam follower 90a is transmitted to the sector gear 88, whereby the bobbin gripping device 31 between the tip ends of the arms 30 is reciprocally rotated about the support axis between the tip ends of the arms 30.

The bobbin gripping device 31 will be described. As shown in FIG. 6, a plurality of pairs of gripping pieces 38, 39 (four pairs in this embodiment) are arranged on the support frame 37 at the same pitch as the spindle 12. The two gripping pieces 38, 39 are rotatably meshed with each other. An engaging plate 40 is disposed immediately above the support frame 37, is guided slidably in the longitudinal direction of the support frame 37 by a guide pin 37a on the support frame 37, and the supporting frame 37 and the engaging plate 40 are also provided. Is urged in a direction to engage with the engagement roller 38a on the gripping piece 38 by a tension spring 41 interposed between and. A tension spring 42 is also interposed between the engagement plate 40 and each grip piece 38. Extension spring 41,42
The wire 43 is connected to one end of the engagement plate 40 that is pulled and urged in the direction to engage with the engagement roller 38a by the, and the other end of the wire 43 is operatively connected to the rotary shaft 32 via a cam mechanism (not shown). As a result, the empty bobbin gripping and releasing of the gripping pieces 38, 39 is performed in synchronization with the traveling of the pipe changer 1.

Next, the full bobbin pulling and inserting device 18 will be described. As shown in FIGS.
44 is supported and is a rotation support shaft that protrudes outside the traveling body 28.
Support arms 45 are fixed to both ends of 44,
A support shaft 46 is erected and supported between the tip portions thereof. A pair of arms 47 are rotatably supported on the support shaft 46,
A bobbin holding device 48 having substantially the same structure as that of the bobbin holding device 31 is rotatably supported between the tip portions thereof. A cylindrical gear 49 is rotatably supported on the support shaft 29, and a lever 50 is fixed to one end of the cylindrical gear 49. One end of a rod 51 is rotatably connected to one end of the lever 50, and the other end is rotatably connected to a shaft 52 installed between intermediate portions of the arms 47. A connecting lever 53 is rotatably supported at one end of the support shaft 46, one end of a rod 54 is rotatably connected to the tip thereof, and the other end is a bobbin holding device 48.
Are linked to. A rotation lever 55 is rotatably supported by the rotation support shaft 44, and the rotation lever 55 and the connection lever 53 are connected by a link 56.

The gear 49 is meshed with the sector gear 91 on the fixed shaft 86 so that the rotation of the rotary shaft 32 and the cam 92 on the rotary shaft 32 are fixed.
The cam action of the cam lever 93 on the 84 and the cam follower 93a is transmitted to the sector gear 91, whereby the arm 47 swings around the support shaft 46 at the tip of the support arm 45.
The rotating lever 55 is fixed to one end of the cylindrical gear 94 on the rotating support shaft 44, and the gear 94 is meshed with the sector gear 95 on the fixed shaft 86. The rotation is transmitted to the sector gear 95 by the cam action of the cam 96 on the rotary shaft 32 and the cam follower 97a of the cam lever 97 on the fixed shaft 84. As a result, the bobbin gripping device 48 between the tip ends of the arms is reciprocally rotated about the support axis between the tip ends of the arms 47.

Further, a gear 98 is fixed on the rotary support shaft 44, and the gear 98 is meshed with a sector gear 99 on the fixed shaft 86, so that the rotation of the rotary shaft 32 is performed by a cam on the rotary shaft 32. It is transmitted to the sector gear 99 by the cam action of 100 and the cam follower 101a of the cam lever 101 on the fixed shaft 84. As a result, the rotation support shaft 44 reciprocally rotates, and the support arm 45 reciprocally rotates about the rotation support shaft 44.

The rotating shaft 32 for driving the empty bobbin removing / inserting device 17 and the full bobbin removing / inserting device 18 is a screw roller 8.
The driving force is obtained from the driving motor 7 via the driving motor 7. As shown in FIGS. 3 and 4, the screw roller 8 is rotated by a driving pulley 57, a driven pulley 58, a clutch mechanism (not shown), a bevel gear mechanism 59, and a ball. Rotating shaft 60 consisting of spline shaft, traveling body
Transmission to the rotary shaft 32 via a ball bush 61 fixed to the rotary shaft 60 and in a sliding fit relationship with the rotary shaft 60, a sprocket 62 rotatably supported by the ball bush 61, a chain 63 and a sprocket 64 on the rotary shaft 32. To be done.

A cam 66 is attached to the front-rear intermediate shaft 65 that constitutes the bevel gear mechanism 59.
The cam lever 67 is attached to the
The upper cam follower 67a is engaged with the cam groove 66a of the cam 66. The tip end of the cam lever 67 is connected to the connecting portion 68 at the lower end of the traveling body 28, and the cam lever 67 swings left and right in accordance with the rotation of the cam 66, and the traveling body 28 reciprocates on the support shafts 26, 27. .

A support bracket 69 is erected and fixed on an upper part on one side of the traveling body 28 (on the traveling side of the pipe changer 1).
A shaft 70 is rotatably supported in the front-rear direction at the upper end of the, and a substantially L-shaped position regulating arm 71 is fixed to the tip thereof. A rotary solenoid 72 is mounted on an upper portion of the support bracket 69, and a shaft 70 is operatively connected to a drive shaft 72a of the rotary solenoid 72 via a link mechanism 73. The rotary solenoid 72 is reciprocally driven, whereby the position regulating arm 71 engages with the empty bobbin-equipped peg tray 13A on the conveying path of the empty bobbin-equipped peg tray 13A as shown by the solid line in FIG. As shown, the empty bobbin-equipped peg tray 13A is switched to the inoperative position retracted from the transport path.

As shown in FIG. 3, the transfer belt 20 and the guide member 21 that form a conveyance path that intersects with the position regulation arm 71 are set in a positional relationship for inclining the empty bobbin-equipped peg tray 13A downward and conveying the position. Depending on the setting of the relationship, the tip of the empty bobbin E on the peg tray 13A with an empty bobbin is supported by the lower end bent portion of the bobbin supporting member 23, and is arranged and held on the rotation path of the bobbin gripping device 31 which constitutes the empty bobbin removing / inserting device 17. To be done. That is, the turning path of the gripping pieces 38, 39 that intersects with the placement area of the empty bobbin on the spindle 12 is set to intersect with the placement area of the bobbin E placed on the transport path near the position regulating arm 71.

As shown in FIG. 3, a support bracket 75 extends toward the lower part of the spindle 12 toward the front of the pipe changer 1 on the left and right sides (opposite side of the pipe changer 1) of the traveling body 28. A known cutter 76, which cuts the yarn connecting from the full bobbin F to the spinning machine side at the time of pipe replacement, is attached via a mounting bracket 77 to the tip end portion. A rotary solenoid 78 is mounted on the support bracket 75, and a position restricting piece 79 is fixed to the drive shaft 78a thereof. The rotary solenoid 78 is reciprocally driven, which causes the position regulating piece.
As shown by a chain line, 79 is an operating position for engaging the peg tray 13A with an empty bobbin on the conveying path of the peg tray 13 from which the empty bobbin E has been extracted by the empty bobbin removing / inserting device 17 as shown by the solid line in FIG. The peg tray 13 is switched to the inactive position retracted from the transport path.

Now, when the spinning machine stops due to a full pipe command, the pipe changer 1 stopped at the machine base end starts traveling at a constant speed, and
The motor 19 of the twisting and conveying device 16 starts driving, and the transfer belt 20
Starts moving in the direction of the arrows in Figs. When the pipe changer 1 starts traveling, the peg tray intake plate 14 and the peg tray transfer plate 15 are arranged at the working positions intersecting with the tray guide 10, and the position control arm 71 and the position control piece 79 are on the transfer path of the twist transfer device 16. Of the peg tray 13 with four position regulating pieces 79.
Is engaged with. As the pipe changer 1 runs, the tray guide
When the engaging member 82 reaches the position corresponding to the empty bobbin E of the empty bobbin-equipped peg tray 13A on 10, the top of the empty bobbin E engages with the engaging member 82 and the empty bobbin E tilts toward the spinning machine base side. The movement of the pipe changer 1 causes the peg tray intake plate 14 to engage with the peg 13a of the peg tray 13A with an empty bobbin. As a result, the lower surface of the empty bobbin-equipped peg tray 13A is taken into the pipe changer 1 that engages with the transfer belt 20 of the twist transfer device 16.

Peg tray 13 with an empty bobbin installed in the pipe changer 1
A is conveyed above the pipe changer 1 by the cooperation of the transfer belt 20 and the guide member 21, and is engaged with the position regulating piece 79. The top of the empty bobbin E on the peg tray 13A with an empty bobbin is supported by the lower end bent portion of the bobbin supporting member 23 by the time the drive of the empty bobbin extracting / inserting device 17 is started, and stands by corresponding to the pitch of the spindle 12. The traveling body 28 is arranged on the side opposite to the position shown in FIG. 5, that is, on the side opposite to the advancing side of the pipe changer 1 when the pipe changer 1 starts traveling, and the full bobbin lifting / inserting device 18 is the first spindle 12. When the screw roller 8 passes through, the rotational driving force of the screw roller 8 is transmitted to the cam 66 via the clutch mechanism (not shown), the traveling body 28 moves to the advancing side of the pipe changer 1, and the empty bobbin extracting / inserting device 17 and The full bobbin lifting and inserting device 18 starts driving.

At the time when the traveling body 28 is arranged at the most advanced position shown in FIG. 5, the holding pieces 38, 39 of the full bobbin lifting / inserting device 18 are released to the upper position corresponding to the spindle 12 as shown in FIG. The bobbin gripping device 31 of the empty bobbin removing / inserting device 17 grips the empty bobbin E on the peg tray 13A with empty bobbin whose position is restricted by the position restricting arm 71, and moves to the last retracted position shown by the chain line. The empty bobbin E on the empty bobbin-equipped peg tray 13A is gripped by the bobbin gripping device 31 during the backward rotation of the arm 30. After the empty bobbin E is gripped, the empty bobbin E on the empty bobbin-equipped peg tray 13A is removed from the empty bobbin-equipped peg tray 13A. Be done. After this withdrawal, the lever 35 is rotated clockwise to rotate the bobbin holding device 31 clockwise, and the base end of the held empty bobbin E is moved downward below the peg tray 13. . As a result, the rotation path of the empty bobbin E does not intersect with the peg tray 13, and the empty bobbin E can be smoothly and quickly inserted into the spindle 12 by the clockwise rotation of the arm 30.

When the pipe changer 1 further travels from this state, the traveling body 28 moves in the direction opposite to the traveling direction of the pipe changer 1, and the positional relationship between the empty bobbin removing / inserting device 17 and the full bobbin pulling up / inserting device 18 with respect to the spindle 12. Is constant. When the traveling body 28 starts moving in the opposite direction, the support arm 45 of the full bobbin lifting / inserting device 18 is rotated clockwise in FIG.
The rotating lever 55 is rotated counterclockwise. As a result, the bobbin holding device 48 moves down to a position corresponding to the full bobbin F on the spindle 12 while holding the holding piece in a horizontal state, and holds the top of the full bobbin F. Next, the support arm
45 is rotated in the counterclockwise direction together with the rotation support shaft 44, and the lever 50 and the rotation lever 55 are driven in synchronization with this. As a result, the full bobbin F is pulled out from the spindle 12. After pulling up the full bobbin F, the support arm 45 rotates again in the counterclockwise direction, and the lever 50 and the rotation lever 55 rotate clockwise, so that the full bobbin F moves to the position regulating piece 79.
Peg 13 in peg tray 13 regulated by
inserted over a.

The empty bobbin E held by the bobbin holding device 31 of the empty bobbin removing / inserting device 17 is a full bobbin F on the peg tray 13.
At the time of insertion, the bobbin E is inserted onto the spindle 12 as shown in FIG. 4, and the replacement of the empty bobbin E and the full bobbin F on the spindle 12 is completed. The reciprocating motion of the spindle 12 and the peg tray 13 in the pipe changer 1 are aligned with each other to ensure smooth operation.
It becomes unnecessary to demand strictness in the arrangement pitch accuracy of the empty bobbin-equipped peg trays 13A on the peg tray conveyor device below the spindle 12. Therefore, problems regarding the mechanical complexity of the conveyor device and the manufacturing accuracy of the peg tray are solved. The empty bobbin-equipped peg tray 13A to the spindle 12 in the pipe changer 1 which forms a pipe change mechanism for solving such a problem.
The empty bobbin E is inserted into the empty bobbin E by a simple reciprocating rotation of the bobbin gripping device 31 supported by the tip of the swinging arm 30, and the mechanism of the empty bobbin inserting device has a simple structure with no complicated movement. . Therefore, it becomes possible to increase the empty bobbin insertion speed from the pipe changer 1 side to the spindle 12, and
Can be made compact and the work efficiency of pipe replacement can be improved.

After the empty bobbin E is pulled out, the rotary solenoid 72 is driven and the position regulating arm 71 is pivotally arranged at the retracted position.
Further, after the full bobbin F is inserted, the rotary solenoid 78 is driven and the position regulating piece 79 is arranged at the retracted position. As a result, the full bobbin-equipped peg tray 13B is moved downward toward the peg tray transfer plate 15, and is sequentially transferred onto the conveyor belt 11 by the action of the peg tray transfer plate 15. Peg tray 13B with full bobbin is the position control piece 7
After passing through 9, the position restricting piece 79 is pivoted again to the operating position, and the peg tray 13 transferred downward from the empty bobbin removing / inserting device 17 side waits in a state of engaging with the position restricting piece 79, and thereafter. , A similar pipe replacement operation is performed.

As described above in detail, according to the present invention, an empty bobbin holding member that releasably holds an empty bobbin is attached to the tip end of the swing arm that is reciprocally rotated, and the empty bobbin is arranged on the empty bobbin arrangement area on the spindle. In addition to setting the rotation path of the gripping member of the empty bobbin, the empty bobbin arrangement area in the transport arrangement position of the empty bobbin-attached peg tray is set on the rotation path. When replacing an empty bobbin on the peg tray with a full bobbin on the spindle, empty bobbin removal from the peg tray and empty bobbin insertion on the spindle, which are inevitable, can be performed smoothly and quickly. The work efficiency of the pipe changer can be improved while simplifying the mechanism, and the mechanism of the pipe changer can be simplified and compact. The excellent effect of being able to achieve is achieved.

[Brief description of drawings]

The drawings show an embodiment embodying the present invention. FIG. 1 is a schematic perspective view showing the relationship between a pipe changer and a spinning machine and a state in which an empty bobbin is pulled out, and FIG. Fig. 3 is a schematic perspective view, Fig. 3 is a side sectional view of the pipe changing machine showing an empty bobbin gripping state, Fig. 4 is a side sectional view of the pipe changing machine showing an empty bobbin inserted state, and Fig. 5 is a rear view of the same. The drawing is an exploded rear view showing the drive mechanisms of the empty bobbin extracting / inserting device and the full bobbin lifting / inserting device. Pipe changer 1, peg tray 13, peg tray 13 with empty bobbin
A, empty bobbin extracting / inserting device 17, swinging arm 30,
Bobbin gripping device 31, gripping piece 3 as an empty bobbin gripping member
8,39, empty bobbin E, full bobbin F.

Front Page Continuation (72) Inventor Takayuki Morita 2-1-1 Toyota-cho, Kariya City, Aichi Stock Company Toyota Industries Corp.

Claims (1)

[Claims] 1. A peg tray with an empty bobbin is prepared in advance on a conveyor which is arranged below a spindle row of a spinning machine in parallel with the spindle rail, and after the spinning machine stand is completely filled, the spindle rail is moved from one end of the machine stand to the spindle rail. The empty bobbin on the conveyor is moved to a position corresponding to the full bobbin and above the full bobbin on the spindle, and the empty bobbin on the peg tray with an empty bobbin and the full bobbin on the spindle are taken along. In a pipe changer that sequentially replaces the empty bobbin gripping member that releasably grips the empty bobbin at the tip of the swinging arm that is reciprocally rotated, and the empty bobbin gripping member of the empty bobbin gripping member is placed on the spindle bobbin disposition region. The rotation path is set, and the empty bobbin placement area at the transport placement position of the empty bobbin attached peg tray is set. Empty bobbin insertion device in the set spinning machine on Kikaido path.