JPH0512306Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention is a spinning machine such as a ring spinning machine, a ring twisting machine, etc., in which a spinning machine, etc. A peg tray with bobbins inserted is prepared in advance, and after the spinning machine stand stops full, the machine runs along the spindle rail from one end of the machine stand, takes in the peg tray with empty bobbins on the conveyor, and corresponds to the full bobbin on the spindle. This invention relates to an empty bobbin extracting device in a tube changing machine that transports and arranges empty bobbins to a position and sequentially exchanges empty bobbins on a peg tray with empty bobbins that have been taken in and transported and full bobbins on a spindle.

(Prior art) In a spinning machine such as a ring spinning machine or a ring twisting machine, after the machine has stopped full, a tube changer is moved from one end of the machine along the spindle rail to change the full bobbins and empty bobbins on the spindle. A pipe changing device that automatically replaces pipes is disclosed in Japanese Patent Publication No. 56-8136 and
It is disclosed in Publication No. 60-246828. Special Public Service 1986-
In the device of Publication No. 8136, a large number of pegs are arranged on a conveyor below the spindle rail at a spindle pitch, empty bobbins are prepared for insertion onto the pegs in advance, and a dosing device and donning device equipped with a plurality of gripping tools are used. A tube changer equipped with the device moves intermittently along the spindle rail during tube change operations, thereby automatically exchanging full bobbins on the spindle and empty bobbins on the pegs.

On the other hand, the device disclosed in JP-A No. 60-246828 is a tube changer equipped with a full bobbin pulling device, an empty bobbin pulling device, a full bobbin insertion device, an empty bobbin insertion device, a full bobbin transfer device, and an empty bobbin transfer device. runs continuously along the spindle rail during tube change, and pulls out the full bobbins on the spindle one by one, and also pulls out the empty bobbins one by one from the peg, so that the full bobbins and empty bobbins that have been pulled out are one by one. Books will be automatically exchanged one by one.

(Problem to be solved by the invention) However, as disclosed in Japanese Patent Application Laid-Open No. 60-52474, full bobbins sent to the winder process by a conveying means that directly connects the spinning process and the winder process are When sending the bobbin to the spinning process again, the conveyance method using peg trays is attracting attention due to its simple mechanism compared to using a conveyor, but the conventional pipe changing device as described above is The following problems arise when intervening a peg tray in automatic pipe change operations. In other words, in order for conventional automatic tube changing machines to perform tube changing operations smoothly, it is necessary to make the spacing of the peg trays with empty bobbins prepared below the spindle rails the same as the spindle pitch. The weighting prevents accurate correspondence between the arrangement positions of the peg trays arranged according to the number of spindles and the spindle positions, and in order to achieve accurate positional correspondence between the spindles and the peg trays, it is necessary to manufacture the peg trays with high quality. A peg tray arranging means for arranging the peg trays with precision and a predetermined pitch is required.

In addition, in the configuration of conventional tube changing machines, the bobbin transfer time to exchange empty bobbins and full bobbins occupies a large proportion of the tube changing time, which lengthens the tube changing operation time and increases machine downtime. There are also problems.

Structure of the invention (means for solving problems) Therefore, in the present invention, a peg tray in which empty bobbins are inserted is prepared in advance on a conveyor arranged below the spindle row of the spinning machine in parallel with the spindle rail, and After the machine stops full, the machine runs along the spindle rail from one end of the machine and takes in the peg tray with empty bobbins on the conveyor, and then sequentially exchanges the empty bobbins on the peg tray with empty bobbins and the full bobbins on the spindle. An empty bobbin gripping member for releasably gripping an empty bobbin is attached to the tip of a swinging arm that rotates back and forth, and the empty bobbin gripping member is installed outside the rotation path of the empty bobbin gripping member. At the same time as setting the transport arrangement position of the peg tray with empty bobbin, setting the arrangement area of the empty bobbin on the peg tray with empty bobbin on the rotation path, and in the state where the empty bobbin on the peg tray with empty bobbin is gripped by the empty bobbin gripping member. The swing arm is configured to be further rotatable in the empty bobbin removal direction, and the empty bobbin peg tray at the transport arrangement position is supported so as to be tiltable in response to the rotation of the swing arm.

(Function) That is, the empty bobbins on the peg tray with empty bobbins that are taken into the running pipe changer and transported to the position corresponding to the full bobbins are gripped by the empty bobbin gripping member and are pulled out from the peg tray, It is then inserted onto the spindle. In this rotational movement of the swinging arm after gripping the empty bobbin, the empty bobbin is fixedly held on the swinging arm side by the empty bobbin gripping member, but the peg tray with the empty bobbin also tilts in accordance with the rotation of the swinging arm. As a result, the direction in which the empty bobbin gripping member moves coincides with the direction in which the empty bobbin can be removed from the peg tray. As a result, empty bobbins can be smoothly and quickly removed from the peg tray with empty bobbins taken into the tube changing machine.

(Example) Hereinafter, an example embodying the present invention will be described based on the drawings.

As shown in FIGS. 1 to 4, the tube changer 1 runs along the spinning frame frame via rails 2 fixed to the spinning frame frame and guide rollers 4 and 5 that engage with guide rails 3. The screw roller 8 is driven by a drive motor 7 and pins 6, which are supported on the rail 2 and project from the rail 2 at predetermined intervals, are engaged with each other to travel along the rail 2.

A spindle rail 9 is provided on the upper surface of the guide rail 3.
A tray guide 10 extends parallel to the tray guide 10, and a conveyor belt 11 is disposed to run within the tray guide 10. A peg tray 13 having approximately the same diameter as the pitch of the spindle 12 is placed on the conveyor belt 11. Prior to pipe change work, the peg tray 13A with an empty bobbin is placed on the conveyor belt 11 in a state that approximately corresponds to the spindle 12. 11.

As shown in FIG. 1, a peg tray 13A with an empty bobbin on the conveyor belt 11 is located at the bottom of the tube changer 1.
A peg tray intake plate 14 that takes in the peg tray into the tube changer 1, and a peg tray 13B with a full bobbin.
Peg tray delivery plates 15 for delivering the pipes onto the conveyor belt 11 are disposed at the front and rear of the pipe changer 1 in the running direction. The peg tray intake plate 14 is driven to switch between an intake position where it engages with 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 delivery plate 15 is also driven to a delivery position shown by a solid line and a retracted position shown by a chain line. Driven by switching. 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 peg tray 13A with empty bobbins on the tray guide 10 to tilt the empty bobbin E toward the spinning machine frame side. .

A torsional conveyance device 16 consisting of a transfer belt 20 driven by a motor 19 and a pair of linear guide members 21 is disposed on the front side of the pipe changer 1 (the side facing the spinning machine), and a peg tray intake plate is installed. The peg tray 13A with empty bobbin taken in by 14 is placed on the full bobbin F on the spindle 12.
The peg tray 13, from which the empty bobbin E has been extracted, is transferred to a position higher up and corresponding to the full bobbin F, and the peg tray 13, from which the empty bobbin E has been extracted, is transferred to the spindle 12.
The peg tray 13B with a full bobbin, into which the full bobbin F has been inserted, is conveyed to a position almost at the same height as the lower part, and then transferred to the peg tray delivery device 15.
Transport to. At the center of the tube changer 1, the empty bobbin E is removed from the peg tray 13A with empty bobbins that has been transported above the full bobbin F on the spindle 12, and the empty bobbin E is transferred to the spindle 12 from which the full bobbin F has been removed. Empty bobbin extraction/insertion device 17 to insert, and full bobbin F from spindle 12
A full bobbin extracting/inserting device 18 is provided which extracts the bobbin and inserts it into the peg tray 13 which is conveyed to the same height position as the lower part of the spindle 12.

As shown in FIGS. 1 and 4, the transfer belt 20 of the torsional conveyance device 16 has a portion running parallel to the tray guide 10 at substantially the same height and a portion running parallel to the lower part of the spindle 12 at substantially the same height. and a part running parallel to the spindle rail 9 above the full bobbin F on the spindle 12. It is set to match the traveling direction of aircraft 1. The pair of guide members 21 press and urge the peg tray 13 toward the transfer belt 20 side by sandwiching the pegs of the peg tray 13, and the peg tray 13 can be transported in any posture. Therefore, the posture of the empty bobbin E or the full bobbin F on the peg tray 13 can be changed freely, and the empty bobbin is placed below the pair of transport paths that run parallel to the spindle rail 9 above the full bobbin F on the peg tray 12. The tip of the empty bobbin E on the peg tray with bobbin 13A is located below the peg tray with empty bobbin 13A, and the center of gravity of the peg tray with empty bobbin 13A is on the back side (spinning machine The positional relationship between the transfer belt 20 and the guide member 21 is set so that the transfer belt 20 and the guide member 21 are on the side opposite to the table side.

As shown in FIG. 3, a bobbin support member 23 is suspended from the upper part of the tube changer 1 so as to be able to swing back and forth, and is always biased to rotate toward the torsion conveying device 16 by a torsion spring 24. and is in contact with the stopper 25. In this state, the bent portion of the lower end of the bobbin support member 23 supports the top of the empty bobbin E of the peg tray 13A with empty bobbins that has been transported by the twisting transport device 16.

As shown in FIG. 3, a pair of support shafts 26, 27 are arranged vertically in parallel with the spindle rail 9 on the inner surface of the rear wall of the tube changing machine 1.
The empty bobbin removal and insertion device 17 and the full bobbin removal and insertion device 18 are mounted on a traveling body 28.
is supported so as to be slidable.

To explain the empty bobbin extraction/insertion device 17, a spindle 29 is rotatably supported on the upper part of the running body 28, and arms 30 are fixed to both ends of the spindle 29 that protrudes to the outside of the running body 28. There is also a bobbin gripping device 3 between the tips.
1 is rotatably supported. A rotating shaft 32 operatively connected to the drive motor 7 is disposed at the center of the traveling body 28, and as shown in FIG. Cam follower 85a of cam lever 85 on 84
is transmitted to the gear 33 on the support shaft 29 via the sector gear 87 on the fixed shaft 86 by the cam action of
As a result, the bobbin gripping device 31 supported between the distal ends of the arms 30 is rotated between the empty bobbin receiving position and the empty bobbin releasing position.

A cylindrical gear 34 is rotatably supported on the support shaft 29, and a lever 35 is fixed to one end of the cylindrical gear 34. One end of a rod 36 is rotatably connected to the tip of the lever 35, and the other end is rotatably connected to the bobbin gripping device 31. The gear 34 is meshed and connected to a sector gear 88 on a fixed shaft 86, and the rotation of the rotating shaft 32 is caused by the cam action of a cam 89 on the same rotating shaft 32 and a cam follower 90a of a cam lever 90 on the fixed shaft 84 to connect the sector gear. 8
8, whereby the bobbin gripping device 31 between the distal ends of the arms 30 is reciprocated about the spindle line between the distal ends of the arms 30.

To explain the bobbin gripping device 31, the fifth
As shown in the figure, a plurality of pairs of gripping pieces 38 and 39 (four pairs in this embodiment) are arranged on the support frame 37 at the same pitch as the spindle 12, and both gripping pieces 38 and 39 are rotated. They are movably interlocked with each other. An engagement plate 4 is provided directly above the support frame 37.
0 is arranged, and is slidably guided in the longitudinal direction of the support frame 37 by a guide pin 37a on the support frame 37, and a tension spring interposed between the support frame 37 and the engagement plate 40. 41 in the direction of engagement with the engagement roller 38a on the gripping piece 38. Further, a tension spring 42 is also interposed between the engagement plate 40 and each gripping piece 38. Engagement roller 3 by tension springs 41 and 42
Engagement plate 40 that is tensilely biased in the direction of engagement with 8a
A wire 43 is connected to one end of the
The other end of the wire 43 is operatively connected to the rotating shaft 32 via a cam mechanism (not shown), so that the gripping pieces 38 and 39 release the empty bobbin grip in synchronization with the movement of the tube changer 1.

Next, the full bobbin extraction and insertion device 18 will be explained. As shown in FIGS. 3 to 5, a rotation support shaft 44 is supported below the support shaft 29, and a rotation support shaft 44 is supported below the support shaft 29. Support arms 45 are fixed to both ends of the support shaft 44, and a support shaft 46 is installed and supported between the ends of these arms. A pair of arms 47 are rotatably supported on the support shaft 46, and a bobbin gripping device 48 having substantially the same structure as the bobbin gripping device 31 is rotatably supported between the tips of the arms 47. 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 the 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 of the connecting lever 53, and the other end is connected to the bobbin gripping device 4.
It is connected to 8. A rotation lever 55 is rotatably supported on 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 and connected to a sector gear 91 on the fixed shaft 86, and the rotation of the rotating shaft 32 is caused by the cam action of the cam 92 on the same rotating shaft 32 and the cam follower 93a of the cam lever 93 on the fixed shaft 84 to connect the sector gear to the sector gear 91 on the fixed shaft 86. 91, thereby arm 4
7 is swung around a support shaft 46 at the tip of the support arm 45. Further, the rotation lever 55 is connected to the rotation support shaft 44.
The gear 94 is fixed to one end of the upper cylindrical gear 94, and the gear 94 is connected to the sector gear 95 on the fixed shaft 86.
The rotation of the rotary shaft 32 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 ends of the arms 47
7 It is rotated back and forth around the support axis line between the tips. Further, a gear 98 is fixed on the rotation support shaft 44, and the gear 98 is meshed and connected to a sector gear 99 on the fixed shaft 86, so that the rotation of the rotation shaft 32 is controlled by the cam on the rotation shaft 32. 100 and the cam follower 101a of the cam lever 101 on the fixed shaft 84, the signal is transmitted to the sector gear 99. As a result, the rotation support shaft 44 reciprocates, and the support arm 45 reciprocates around the rotation support shaft 44.

A rotating shaft 32 for driving the empty bobbin extracting and inserting device 17 and the full bobbin extracting and inserting device 18
receives driving force from the drive motor 7 via the screw roller 8, and as shown in FIGS. 3 and 4, the rotational force of the screw roller 8 is transmitted to the drive pulley 57, driven pulley 58, clutch mechanism (not shown) Bevel gear mechanism 59, rotating shaft 6 consisting of a ball spline shaft
0, a ball bushing 61 fixed to the running body 28 and in a sliding fit relationship with the rotating shaft 60; a sprocket 62 rotatably supported by the ball bushing 61; transmitted to.

An intermediate shaft 6 in the longitudinal direction that constitutes the bevel gear mechanism 59
A cam 66 is fixed to the cam 5, and a cam follower 67a on a cam lever 67 disposed on the back side of the cam 66 is fixed to the cam 66.
is engaged with the cam groove 66a of the cam 66. The tip of the cam lever 67 connects to the connecting portion 6 at the lower end of the traveling body 28.
As the cam 66 rotates, the cam lever 67 swings left and right, and the traveling body 28 reciprocates on the support shafts 26 and 27.

A support bracket 69 is erected and fixed on the upper part of the left and right sides of the traveling body 28 (on the advancing side of the tube changer 1), and a shaft 70 is rotatably supported in the front-rear direction at the upper end of the support bracket 69. At the same time, a substantially L-shaped position regulating arm 71 is fixed to the tip thereof. A rotary solenoid 72 is mounted on the upper part 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 driven reciprocatingly, so that the position regulating arm 71 moves between the working position where it engages with the empty bobbin peg tray 13A on the conveyance path of the empty bobbin peg tray 13A as shown by the solid line in FIG. As shown, the peg tray 13A with an empty bobbin is switched to a non-operating position and evacuated from the conveyance path.

As described above, the transfer belt 20 and the guide member 21, which constitute the transfer path that intersects with the position regulating arm 71, are set in a positional relationship in which the peg tray 13A with empty bobbin is conveyed while being tilted downward, and this positional relationship is set. Accordingly, the tip of the empty bobbin E on the empty bobbin peg tray 13A is supported by the bent portion of the lower end of the bobbin support member 23, and is placed and held on the rotation path of the bobbin gripping device 31 constituting the empty bobbin extracting and inserting device 17. That is, spindle 1
Grip piece 3 that intersects the empty bobbin placement area on 2
The rotation paths of the bobbins 8 and 39 are set to intersect with the area where the empty bobbin E is placed on the conveyance path near the position regulating arm 71.

As shown in FIG. 3, a support bracket 75 is provided on one left and right side of the traveling body 28 (on the side opposite to the advancing side of the tube changer 1) so as to extend toward the front of the tube changer 1 toward the lower part of the spindle 12. A known cutter 76 is attached to the distal end of the cutter 76 via an attachment bracket 77 for cutting the thread connected from the full bobbin F to the spinning machine side when changing the tube. A rotary solenoid 78 is mounted on the support bracket 75, and a position regulating piece 79 is fixed to its drive shaft 78a. Rotary solenoid 7
8 is reciprocally driven, thereby position regulating arm 79
As shown by the solid line in FIG. 2, there is an operating position where the peg tray 13 is engaged with the peg tray 13A with an empty bobbin on the conveyance path of the peg tray 13 from which the empty bobbin E has been extracted by the empty bobbin extraction/insertion device 17, and as shown by the chain line. The peg tray 13 is switched to a non-operating position retracted from the transport path of the peg tray 13.

Now, when the spinning machine stops due to a full tube command, the tube changer 1 stopped at the end of the frame starts running at a constant speed, the motor 19 of the torsion conveying device 16 starts driving, and the transfer belt 20 moves to the first , starts moving in the direction of the arrow in Figure 4. When the tube changing machine 1 starts traveling, the peg tray intake plate 14 and the peg tray transfer plate 15 are placed in the working position intersecting the tray guide 10, and the position regulating arm 71 and the position regulating piece 79 are twisted to move the peg tray transfer device 1.
The position regulating piece 79 is engaged with the four peg trays 13. As pipe changer 1 runs, tray guide 1
When the engaging member 82 reaches the position corresponding to the empty bobbin E on the peg tray 13A with an empty bobbin above 0, the top of the empty bobbin E engages with the engaging member 82, and the empty bobbin E tilts toward the spinning machine frame side, and the pipe As the changer 1 moves, the peg tray intake plate 14 engages with the peg 13a of the peg tray 13A with an empty bobbin. As a result, the peg tray 13 with empty bobbin
The lower side of A is introduced into the tube changing machine 1 where it engages with the transfer belt 20 of the torsion conveying device 16.

The peg tray 13A with an empty bobbin taken into the tube changing machine 1 is connected to a transfer belt 20 and a guide member 21.
It is conveyed above the pipe changer 1 by cooperation with the pipe changer 1 and engages with the position regulating piece 79. The top of the empty bobbin E on the empty bobbin peg tray 13A is supported by the bent portion of the lower end of the bobbin support member 23 and is on standby in correspondence with the pitch of the spindle 12 until the empty bobbin extraction/insertion device 17 starts to be driven. Running body 28
is located on the opposite side to the position shown in FIG. 4 when the tube changer 1 starts running, that is, on the opposite side to the advancing side of the tube changer 1, and when the full bobbin extraction and insertion device 18 passes the first spindle 12. At this point, the rotational driving force of the screw roller 8 is transmitted to the cam 66 via the clutch mechanism (not shown), and the traveling body 28 moves in the direction of movement of the tube changer 1, and the empty bobbin extracting/inserting device 17 and the full bobbin are removed. The pulling and inserting device 18 starts driving.

When the traveling body 28 is placed at the most advanced position shown in FIG. 4, the gripping pieces 38 and 39 of the full bobbin extraction/insertion device 18 are in a released state at an upper position corresponding to the spindle 12, as shown in FIG. The hobbin gripping device 31 of the empty bobbin extraction/insertion device 17 grips the empty bobbin E on the empty bobbin peg tray 13A whose position is restricted by the position restriction arm 71, and moves to the most retracted position shown by the chain line. The hobbin gripping device 31 grips the empty bobbin E on the peg tray 13A with empty bobbins during the backward rotation of the arm 30, and the empty bobbin E is gripped by the gripping pieces 38 and 39 as shown by solid lines in FIG. After that, the arm 30 further rotates backward. The empty bobbin E, which is fixedly held on the arm 30 side by the holding pieces 38 and 39, also tries to tilt in accordance with the rotation of the arm 30, and this tilting action causes the empty bobbin-equipped peg tray 13A to move as shown by the chain line in FIG. It tilts between the transfer belt 20 and the guide member 21 as shown in FIG. Therefore, the moving direction of the gripping pieces 38 and 39 coincides with the direction in which the empty bobbin E can be removed from the empty bobbin-equipped peg tray 13A. The bobbin E can be removed smoothly and quickly.

After removing the empty bobbin E, the peg tray 13 from which the empty bobbin E has been removed is connected to a pair of guide members 21.
Due to the positional relationship of the center of gravity of the peg tray 13 with respect to the lower one, that is, the positional relationship in which the center of gravity protrudes from the lower guide member 21 in the direction away from the transfer belt 20, the empty bobbin E is automatically returned to its original position before being gripped. The lower surface of the peg tray 13 is pressed against the transfer belt 20.

After this removal, the lever 35 rotates clockwise, so that the bobbin gripping device 31 rotates clockwise, and the base end of the empty bobbin E that is gripped is moved below the peg tray 13. . This allows the rotation path of the empty bobbin E to change to the peg tray 1.
3, and the empty bobbin E can be smoothly and quickly inserted into the spindle 12 by rotating the arm 30 clockwise.

When the tube changer 1 further travels from this state, the traveling body 28 moves in the direction opposite to the direction of movement of the tube changer 1, and the positional relationship of the empty bobbin extracting and inserting device 17 and the full bobbin extracting and inserting device 18 with respect to the spindle 12. becomes constant. When the traveling body 28 starts to move in the opposite direction, the support arm 45 of the full bobbin extraction/insertion device 18 is rotated clockwise in FIG. 3, and the rotation lever 55 is rotated counterclockwise. As a result, the bobbin gripping device 48 moves downward to a position corresponding to the full bobbin F on the spindle 12 while holding its gripping piece in a horizontal state, and grips the top of the full bobbin F. Next, support arm 4
5 is rotated counterclockwise together with the rotation support shaft 44, and in synchronization with this, the lever 50 and the rotation lever 55 are driven. As a result, the full bobbin F is pulled out from the spindle 12. full bobbin F
After being pulled out, the support arm 45 rotates clockwise again, and the lever 50 and the rotation lever 5
5 rotates clockwise, and the position of the full bobbin F is regulated by a position regulating piece 79.
It is inserted onto the peg 13a of No.3.

The empty bobbin E held by the bobbin gripping device 31 of the empty bobbin extraction/insertion device 17 is inserted onto the spindle 12 as shown in FIG. 3 when the full bobbin F is inserted into the peg tray 13.
The exchange of the empty bobbin E and the full bobbin F on the tube changer 2 is completed, but this exchange is performed by using the reciprocating motion of the running body 28 in the moving tube changer 1 to replace the spindle 12 and the peg tray 13 in the tube changer 1. The peg tray 1 with empty bobbin on the peg tray conveyor device below the spindle 12 is smoothly aligned.
There is no need to require strict accuracy in the 3A array pitch accuracy. Therefore, problems regarding the mechanical complexity of the conveyor device and the manufacturing accuracy of the peg tray are resolved. In order to smoothly and quickly remove the empty bobbin E from the empty bobbin peg tray 13A in the tube changer 1, which is the tube changing mechanism that solves this problem, the empty bobbin peg tray 13A is removed by following the extraction operation of the arm 30. This is achieved by the tiltable support structure, and the mechanism of the empty bobbin insertion device has a simple structure without complicated movements. Therefore, it becomes possible to increase the speed at which empty bobbins are removed from the peg tray, making it possible to make the tube changer 1 more compact and to improve the work efficiency of tube change.

After removing the empty bobbin E, rotary solenoid 7
2 is driven, and the position regulating arm 71 is rotated to the retracted position. Further, after the full bobbin F is inserted, the rotary solenoid 78 is driven, and the position regulating piece 79 is rotated to the retracted position. As a result, the peg trays 13B with full bobbins are transferred downward toward the peg tray delivery plate 15, and are sequentially delivered onto the conveyor belt 11 by the action of the peg tray delivery plate 15. After the full bobbin peg tray 13B passes the position regulating piece 79, the position regulating piece 79 is rotated to the operating position again, and the peg tray 13, which has been transferred downward from the empty bobbin extracting/inserting device 17 side, passes through the position regulating piece 79. The pipes wait in the engaged state, and thereafter similar pipe switching operations are performed.

Effects of the Invention As detailed above, the present invention has an empty bobbin gripping member that releasably grips an empty bobbin attached to the tip of a swinging arm that rotates back and forth, At the same time, the transport arrangement position of the peg tray with empty bobbin taken in is set on the peg tray with empty bobbin, and the arrangement area of the empty bobbin on the peg tray with empty bobbin is set on the rotation path, and the empty bobbin on the peg tray with empty bobbin is set by the empty bobbin gripping member. The swinging arm is configured to be able to be further rotated in the empty bobbin removal direction while gripping the bobbin, and the peg tray with the empty bobbin at the transport arrangement position is supported so as to be tiltable in accordance with the rotation of the swinging arm to remove the bobbin. This makes it possible to smoothly and quickly remove empty bobbins from the peg tray, which is necessary when replacing empty bobbins on the peg tray with empty bobbins arranged on the conveyor below the spindle, with full bobbins on the spindle. This has the excellent effect of simplifying the mechanism of the empty bobbin peg tray arranging means, increasing the work efficiency of tube changing, and simplifying and downsizing the mechanism of the tube changing machine.

[Brief explanation of drawings]

The drawings show an embodiment embodying the present invention, and Fig. 1 is a schematic perspective view showing the relationship between the tube changing device and the spinning machine and the state in which an empty bobbin is removed, and Fig. 2 similarly shows the bobbin in the middle of being inserted into the spindle. A schematic perspective view, FIG. 3 is a side sectional view of the tube changer showing the empty bobbin gripping state, FIG. 4 is a rear view, and FIG. FIG. Pipe change machine...1, Peg tray...13, Peg tray with empty bobbin...13A, Twisted conveyance device...
16. Empty bobbin extraction/insertion device... 17. Swinging arm... 30. Bobbin gripping device... 31.
Gripping piece as an empty bobbin gripping member...38,3
9. Empty bobbin...E, Full bobbin...F.

Claims (1)

[Scope of utility model registration request] In this bobbin changing machine, a peg tray with empty bobbins inserted therein is prepared in advance on a conveyor disposed parallel to the spindle rail below the spindle row of the spinning machine, and after the spinning machine table is stopped with a full bobbin, the machine travels from one end of the machine table along the spindle rail to take in the peg tray with empty bobbins on the conveyor and sequentially replace the empty bobbins on the peg tray with empty bobbins taken in with the full bobbins on the spindle. In this bobbin changing machine, an empty bobbin gripping member for releasably gripping an empty bobbin is attached to the tip of a swinging arm that is rotated back and forth, and the empty bobbin gripping member is attached to the tip of the swinging arm that is rotated back and forth. An empty bobbin removal device for a spinning machine, in which a transporting and positioning position of the peg tray with empty bobbins taken in is set outside the rotation path of the holding member, and the placement area of the empty bobbins on the peg tray with empty bobbins is set on the rotation path, the swing arm is configured to be further rotated and positioned in the empty bobbin removal direction while the empty bobbin holding member is holding an empty bobbin on the peg tray with empty bobbins, and the peg tray with empty bobbins at the transporting and positioning position is supported so that it can be tilted in response to the removal rotation of the swing arm.