JPH0624652A - Carrying device for tube and bobbin - Google Patents

Abstract

(57) [Abstract] [Purpose] To allow tubes and bobbins to be conveyed from one side of a spinning machine to the other without the presence of different stretches that make bobbin exchange difficult between two conveyor belts. With the goal. A swivel gripping device is provided for transporting the tubes and bobbins from one machine side of the spinning machine to the other machine side, the apparatus comprising a tube and bobbin on one conveyor belt inter-vehicle section. Take out from the holding pin,
Insert them into the holding pins of the other inter-vehicle belt. The two conveyor belt inter-vehicle parts are respectively guided along the machine side, but are moved in opposite directions.

Description

Detailed Description of the Invention

The present invention is a device for transporting tubes and bobbins from one machine side of a spinning machine to the other machine side, respectively guided along the machine side in opposite directions, and for tubes and bobbins. It relates to a tube and bobbin transport device which comprises two transport belt interspace parts with retaining pins, which belt interspace parts are connected to each other by a transverse transport device at the machine end.

A device of this type is described in DE 2815105.
It is described with reference to FIG. 26 of C2. It is a ring spinning machine with a circulating transport belt with retaining pins for tubes and bobbins. The conveyor belt is continuously or intermittently driven in one direction. At the end of the spinning machine, the bobbin is handed over to a transport device that goes to the winder. At the same machine end, the tubes coming from the winder are returned to the conveyor belt. The tubes and bobbins change machine side at the other machine end because of the circulating conveyor belt. As a result, the tubes on both machines are sent to a position where one tube engages one spinning position for bobbin exchange on the ring spinning machine. After replacing the bobbin, the entire bobbin is pulled out.

A disadvantage of such an arrangement of the conveyor belts is that all tubes and bobbins on both machine sides must be moved by only one conveyor belt. Large stretches occur in the direction of travel on the conveyor belt, which can cause the tubes sent to the spinning position to be misaligned. Moreover, the sizes of the stretches in the inter-vehicle portion of the conveyor belt that engage with both machine sides are different. These disadvantages are particularly affected during bobbin exchange.

FIG. 1 of said DE 2815105 C2
And another ring spinning machine is described in connection with FIG. 2, in which case a separate conveyor belt with holding pins for tubes and bobbins is installed on each machine side.
The bobbins of both conveyor belts are conveyed to the machine end and are delivered by the chute to the conveyor belt associated with the winder. The tube returning from the winder is delivered to a third conveyor belt running above the spinning machine and further conveyed to the side of the spinning machine opposite to the winding machine. From there, the tubes reach the two mentioned conveyor belts by means of another chute.

This arrangement does not result in different stretching of the conveyor belts on the two machine sides, but overall an additional conveyor belt for the tubes is required.

The object of the present invention is to provide a tube and bobbin from one machine side to the other machine without the presence of different stretches between the two conveyor belts between the two conveyor belts which makes it difficult to change the bobbin in a machine of the type mentioned at the outset. To provide the possibility of shifting to the side.

This object comprises a gripping device in which the transverse transport device is pivotable, the gripping device taking the tube and the bobbin out of the holding pin of one inter-carrying belt interspace part and into the other of the other carrying belt inter-carrying part holding pin. It is achieved by fitting.

In this configuration, each machine side has a separate conveyor belt, but each conveyor belt needs to convey only the bobbin and the tube for one machine side. Regarding the stretching in the running direction, there is no difference between the parts between the conveyor belts on both machines, so that adjustment of the tube required for bobbin exchange regarding the engaged spinning position is not so problematic.

Reasonably, the gripping device has a pivot axis which lies in the central longitudinal plane of the spinning machine. With this configuration, a particularly simple motion mechanism for the gripping device can be obtained,
The device can be driven, for example, by a crank rocking arm.

Advantageously, the gripping device comprises a gripping element which can be raised and lowered on the side opposite the pivot axis. Thereby, it is not necessary to raise and lower the total weight of the gripping device in order to remove and insert the tube and the bobbin, but to raise and lower the gripping element attached to the end of the gripping device.

In a particularly advantageous embodiment of the invention, gripping elements for two tubes or bobbins respectively are provided. Thereby, the process time for moving the tube and the bobbin can be shortened.

Advantageously, the gripping element is pneumatically actuatable. This results in a particularly convenient handling of the gripping element.

In another aspect of the invention, the gripping device is mechanically coupled to the at least one conveyor belt inter-vehicle portion. This ensures that the swiveling movement of the gripping device is exactly synchronized with the intermittent conveying movement of the conveying belt inter-vehicle portion.

Reasonably, an angle gearing is installed for the mechanical connection. This can advantageously be connected to a stepper motor, which activates the individual movement steps for the pivoting movement of the gripping device, and then carries out the necessary stopping of the gripping device for tube and bobbin removal and fitting.

In a preferred embodiment of the invention, the swivel shaft is engaged by a stationary gear wheel on which the toothed belt runs, which belt is wound around another rotatable gear wheel in the range of the gripping elements. Has been. This results in a space-saving structure, since the end position of the gripping device can be at an acute angle with respect to the tube or bobbin to be gripped, and the two gripped tubes or bobbins are It is ensured that the other machine side is angularly matched and delivered.

Other features and advantages of the invention will be apparent from the claims and the following description of one embodiment.

The spinning machine 1 shown in FIG. 1 has a number of juxtaposed spinning positions 5 of the same type on each machine side 3 and 4 on either side of its central longitudinal plane 2. Machine side 3 and 4
Conveying belts 7 and 8 with holding pins 6 extend along. The upper belt-interval portion 9 of the conveyor belt 7 is moved in the arrow direction A, and the upper belt-interval portion 10 of the conveyor belt 8 is moved in the arrow direction B. That is, the inter-vehicle belt portions 9 and 10 run in opposite directions.

A spinning machine 1 configured as a ring spinning machine
Comprises drive and gear heads 13 and 14 at each machine end 11 and 12. The conveyor belts 7 and 8 end in front of the drive head 13 in the longitudinal direction of the spinning machine 1.
On the other hand, at the other machine end 12, the conveyor belts 7 and 8 extend beyond the gear head 14, so that a coupling with the conveyor device 15 indicated only by the dotted line is possible, which is a spinning machine 1. And a winding machine (not shown) are connected.

At each spinning position 5, the yarn is spun in a known manner and wound up on a bobbin 16 such as a ring spinning cup. For this purpose, a tube 17 is fitted in a known manner to the spindle, one of each of which belongs to the spinning position 5, on which the spun yarn is wound to form the bobbin 16. Therefore, the entire spindle of the spinning position 5 must be fitted with the tube 17 before the start of the spinning process.

The spinning machine 1 is operated such that all fully spun bobbins 16 on both machine sides 3 and 4 can be replaced by empty tubes 17. This is done in a known manner by means of so-called doffing devices, one of each of which engages each machine side 3 and 4. At that time, in the bobbin replacement step, the tube 17 supplied by the inter-vehicle belt portion is used in the spinning position 5.
At the same time when the full bobbin 16 is taken out from the above, it advances so as to be fitted into the spindle of the spinning station 5. Next, the bobbin 16 is fitted into the holding pin 6 from which the tube 17 is taken out prior to the bobbin 16. In this case, additional holding pins 6 matched to the half pitch of the spinning position 5 for intermediate storage of the bobbins 16 on the conveyor belts 7 and 8.
It is immaterial in principle whether it is arranged or a separate intermediate storage rail is installed.

A doffing device (not shown) is provided on both machine sides 3
At the same time the full-spun bobbin 16 is replaced with an empty tube 17 in 4 and 4, at the same time the bobbin 16 has to be transported towards a winder, not shown,
Therefore, the bobbin 16 is rewound into a shape suitable for the subsequent processing. For this reason, the conveyor belt inter-vehicle portion 10 can move in the direction of arrow B toward the machine end 12.

That is, the full bobbin 16 is conveyed on the machine side 4 beyond the gear head 14 to the position 18, and the inter-vehicle belt portion 10 for conveying the bobbin 16 there is opposite to the arrow B by a turning disc (not shown). It is turned to the direction. Each bobbin 16 which has reached this turning position is gripped by a gripping device 19 which is shown only schematically, which device has two gripping device arms 20 and 21 and is of a pivot axis 22 in the central longitudinal plane 2. It can turn around depending on the direction of arrows C and D. Attached to the ends of the gripper arms 20 and 21 opposite the pivot 22 are gripping elements 24 and 25, which will be described later on the basis of FIG.

By means of the gripping device 19 or the gripping element 24,
The full bobbin 16 taken out from the spinning frame 1 is in the direction of arrow E.
To the transport device 15 which circulates, specifically, to the empty holding pins 23. Further, the bobbin 16 reaches the respective winding positions of the winding machine (not shown) by the transport device 15.

An empty tube 17 which has been wound up by the winding machine and returned by the transporting device 15 which also circulates is returned to the spinning machine 1 again by the gripping device 19, in which case the gripping element of the gripping device arm 21. 25 for each tube 1
7 is gripped and fitted into the holding pin 6 of the inter-vehicle portion 9 of the conveyor belt which travels in the direction of arrow A. The tubes 17 are then fed again by the conveyor belt 7 to each spinning position 5, where they are placed against their respective spindles.

The inter-vehicle belt portion 10 of the conveyor belt 8 grips all bobbins 16 on both machine sides 3 and 4.
The bobbin 16 on the conveyor belt inter-car part 9 must be transferred from the machine side 3 to the machine side 4 as it has to be supplied to the machine side 9. This is done at the machine end 11, that is to say by means of another gripping device 26 which will be described later with reference to FIG.
It is turned left and right according to. As a result, the full-filled bobbin 16 on the inter-vehicle belt portion 9 is finally supplied to the gripping device 19 by the inter-vehicle belt portion 10. Similarly, the machine side 3 is moved in the arrow direction A by the inter-vehicle portion 9 of the conveyor belt.
The empty tube 17 sent along the path reaches the conveyor belt inter-vehicle portion 10 to which the other machine side 4 belongs by the gripping device 26.

Therefore, as mentioned above, on the one hand all the full bobbins 16 of the spinning machine 1 are supplied to the conveying device 15, and on the other hand the empty tubes 17 required for the spinning process.
Are taken out by the conveying device 15 and supplied to the spinning machine 1 again. The gripping device 26 then dispenses the tube 17 on both machine sides 3 and 4.

Instead of the circulating conveyor belts 7 and 8 on each machine side 3 and 4, respectively, one conveyor belt is used which circulates around the spinning machine 1 as mentioned at the outset in connection with the state of the art. You could also However, this has the disadvantage, as already mentioned, of different elongations on both machine sides 3 and 4, which would unnecessarily make difficult the engagement of the retaining pins 6 with the individual spinning positions 5. For this reason, separate conveyor belts 7 and 8 are installed on each machine side 3 and 4,
The conveyor belt inter-vehicle portions 9 and 10 carrying 7 and the bobbin 16 travel in opposite directions during conveyance. This has the advantage that on the one hand the elongation is smaller than in the case of a single conveyor belt that wraps around both machine sides, and on the other hand that the stretches in both carrying belt inter-vehicle parts 9 and 10 are equal. Due to this advantage, the additional costs for the gripping device 26 are more than offset.

It should be noted that the conveyor belts 7 and 8 are cyclically moved according to the movement of the gripping devices 19 and 26, and the conveyor belts 7 and 8 are naturally stopped during the bobbin exchange. That is. However, full bobbin 1
During the removal of 6 and the supply of empty tube 17, the spinning process of spinning machine 1 can already be restarted. It is sufficient for the conveyor belts 7 and 8 to stop at the end of the spinning process, i.e. when the bobbins 16 have been completely wound up in the individual spinning positions 5. Thereby, sufficient time is available for taking out the full bobbin 16 and supplying the empty tube 17. The delivery time by the gripping device 19 can be reduced by the gripping device 19 having separate gripping elements 24 and 25 for the complete bobbin 16 and the empty tube 17, respectively, as described. In some cases, two bobbins 16 and two tubes 17 can be moved simultaneously.

With reference to FIG. 2, the gripping device 26 according to the invention installed on the machine end 11 will now be described in detail. The gripping device 26, like the swivel shaft 22 of the gripping device 19, has a swivel shaft 27 in the central longitudinal plane 2 of the spinning machine 1.
The gripping device 26 can move left and right between two final positions, namely a right position shown in solid lines in FIG. 2 and a left position 26 'shown in dashed lines in FIG.
The turning angle between the turning directions F and G is preferably 90 degrees.

The end 2 of the gripping device 26 opposite the pivot 27
Due to the arrangement of gripping elements 29 and 30 in 8, respectively two tubes 17 and two bobbins 16 can be simultaneously gripped and moved. These gripping elements 29 and 30
The configuration will be described later with reference to FIG.

As can be seen from the figure, the gripping device 26 makes an acute angle with the conveyor belt interspace portion 9, so that the gripping elements 29 and 30 have their final position 26 ′ of the gripping device 26.
Would result in no longer being in line with the retaining pin 6 placed there. That is, in addition to the pivoting movement of the gripping device 26, the gripping elements 29 and 30 must also be able to swivel about the joint 31 at the end 28 of the gripping device 26. To achieve this, an endless toothed belt 32 is installed, which is represented by the dotted line in FIG.

The toothed belt 32 comprises two gears 33 and 34.
Will be guided by. One gear 33 is coaxial with the pivot 27 and is fixedly mounted, i.e. it does not rotate with it during the pivoting movement of the gripping device 26. The other gear 34 is coaxial with the joint 31 and can rotate freely. If there is a tooth-ratio in terms of the number of teeth between the gear wheels 33 and 34, the gripping elements 29 and 30 will have a joint 31 when the gripping device 26 pivots to its other final position 26 '.
You have to turn around. Assuming a swiveling angle of the gripping device 26 of 90 degrees and a tooth ratio of 2: 1, a joint 31 is provided between the gripping elements 29 and 30.
Inevitably, a 180 degree change in direction occurs. As a result, in the final position 26 ′ of the gripping device 26, the gripping elements 29 and 30 cause the holding pin 6 of the conveyor belt inter-vehicle part 10 to move.
Again parallel to.

The pivoting movement of the gripping device 26 according to the directions F and G of the arrow is from the rotational movement, that is, the crank swing arm 35.
Is induced using. The rotation shaft 36 of the crank 37 is located on the central vertical plane 2. The final point 38 of the crank 37 is
It circles on the arc 39 indicated by the chain line.

The end point 38 of the crank 37 is connected to the connecting member 40.
It is connected to the swing arm 41 via. The swing arm 41 is swingable around the swivel axis 27 and has a joint point 42 for connecting the swing arm 41 with the connecting member 40. Therefore, the swing arm 41 periodically moves between the end position shown by the solid line and the second end position 41 'shown by the chain line. As shown schematically in FIG. 2, the swing arm 4
Reference numeral 1 denotes a motion-fixed component member of the gripping device 26. Therefore, the so-called amplitude angle matches the turning angle of the gripping device 26, and is preferably 90 degrees.

The arrangement is chosen such that the end point 38 of the crank 37, ie the point of connection with the connecting member 40, occupies the dead center position at the end position on the right side of the gripping device 26 shown. At the other end position of the gripping device 26, ie the position 26 ′ shown in phantom in FIG.
Occupies position 38 ', while joint point 42 transitions to position 42'. Therefore, the joint point 42 makes a turning motion along the arc 43 represented by the chain line.

With this crank mechanism, which is embodied as a crank rocking arm 35, a pure rotational movement is converted into a pivoting movement of the gripping device 26 described above. It is the angle gear device 44 that produces the rotational movement, which is the crank 3
The rotary shaft 36 of 7 is connected with another shaft 45, which is further connected non-rotatably with a turning disc 46 for the conveyor belt 7. The turning disc 46 is provided with a cavity for receiving the rear fixing member for the holding pin 6. These voids could at the same time be used as a form fit for the drive of the conveyor belt 7.

The rotary shaft 36 and the shaft 45 are the electric motor 4
Driven by 7. This motor uses an additional gear 48 and a toothed belt drive 49 to drive the angle gearing 4
4 is connected. Since the electric motor 47 is configured as a step motor that stops each time at the end position of the turning motion of the gripping device 26, it is possible to take out the tube 17 and the bobbin 16 from the holding pin 6 to which the electric motor 47 belongs and to refit the tube 17 and the bobbin 16. The required rest time is obtained. Due to the coupling by the angle gear device 44, the conveyor belt 7 travels in synchronization with the turning movement of the gripping device 26. Each time the gripping device 26 reaches the end position on the right side again, the holding pins 6 of the inter-vehicle belt portion 9 are fed by a total of two pitches.

The angle gearing 44 can have another rotary shaft, not shown, in the opposite direction to the rotary shaft 45, which is connected to another conveyor belt 8. However, the drive for the other conveyor belt 8 is changed to the other machine end 1
It is advantageous to mechanically connect directly to the gripping device 19 in 2, in which case the driving of the gripping device 19 takes place in the same way as the driving of the gripping device 26. Of course, in that case the movements of the gripping devices 19 and 26 would have to be coordinated with each other in perfect synchronization either by mechanical couplings not shown or by electrical methods.

Based on FIG. 3, a gripping element 29 will now be described, which is essentially the same as the other gripping elements 30, 24, 25.

It can be seen in FIG. 3 that the gear 34 guiding the toothed belt 32 is coaxially mounted to the joint 31. The gripping element 29 is connected to the joint 31 by means of a lever arm 50.

The gripping element 29 comprises a pneumatic cylinder 51, which has a guide tube 52 with a slot 53. This slot 53 can be connected to a pressure-air connection 54.

The guide tube 52 slidably guides a piston 55, which can be selectively pressurized on both sides by pressurized air. For this purpose, the pneumatic cylinder 51
Two pressure-air connections 56 and 57 are installed in the. A piston 55 and a piston rod 58 are coupled, which rod can be raised and lowered in response to movement of the piston 55.

On the opposite side of the pneumatic cylinder 51, the piston rod 58 carries the original gripper mechanism 59. These gripping elements include a sleeve 60, which is essentially cylindrical in shape with conical ends. Sleeve 60
Has an outer diameter slightly smaller than the inner diameter of the tube 17 to be captured. At this time, it is not determined here whether the empty tube 17 or the wound bobbin 16 is the target.

The piston rod 58 is hollow inside,
The elongated hole 53 of the guide tube 52 passes therethrough. Thereby, the inside of the sleeve 60, which is closed to the outside, can also be pressurized with pressurized air. As a result, the sleeve 60 is expanded, so that the tube 17 or the bobbin 16 can be captured by friction coupling. This type of gripping element is known.

The pneumatic cylinder 51 cannot move vertically. By the movement of the piston 55, the gripping device 26
It is no longer necessary to slidably support the whole body on its pivot 27 so that it can be raised and lowered.

The gripping element 29 is shown only very schematically. However, pneumatics specialists could easily design pneumatic controls. This control device can be instructed by the step motor 47 described above.

[Brief description of drawings]

1 is a schematic plan view of a spinning machine equipped with a device for transporting tubes and bobbins according to the invention; FIG.

2 is an enlarged partial view from FIG. 1 including an activation device for a device according to the invention.

FIG. 3 is a sectional view of a gripping element for a device according to the invention.

[Explanation of symbols]

 1 Spinning Machine 2 Central Vertical Plane 3, 4 Machine Side 5 Spinning Position 6 Holding Pin 7, 8 Conveyor Belt 9, 10 Conveyor Belt Inter-Vehicle Area 13 Drive Head 14 Gear Head 15 Conveyor 16 Bobbin 17 Tube 19 Gripping Device 20, 21 Gripping Device arm 22 Pivot shaft 23 Holding pins 24, 25 Grip element 26 Grip device 27 Pivot shaft

Front page continued (72) Inventor Norbert Brunck, Germany 7347 Batt, Uberkingen 3, Reichenbacher, Strasse 5 (72) Inventor, Joseph Scholz, Germany 7342 Batt, Ditzenbach, Haoptstraße 28

Claims (10)

[Claims] 1. A device for transporting tubes and bobbins from one machine side of a spinning machine to the other machine side, respectively guided in opposite directions along the machine side and for the tubes and bobbins. In a tube and bobbin transport device, which comprises two transport belt inter-carrying parts with pins, the belt inter-carrying parts being connected to each other at the machine end by a transversal transport device, a gripping device by which the transverse transport device is pivotable ( 26), wherein the gripping device takes out the tube (17) and the bobbin (16) from the holding pin (6) of one of the conveyor belt inter-vehicle portions (9) and the holding pin of the other conveyor belt inter-vehicle portion (10) (6) A tube and bobbin transport device characterized by being fitted in. 2. Tube and bobbin transport device according to claim 1, characterized in that the gripping device (26) has a swivel axis (27) located in the central longitudinal plane (2) of the spinning machine (1). 3. The tube and bobbin transfer device according to claim 1, wherein the gripping device (26) can be driven by a crank swing arm (35). 4. The gripping device (26) comprises at its end (28) opposite to the pivot axis (27) a gripping element (29, 30) which can be raised and lowered. 3. The tube and bobbin transport device according to 3. 5. The tube and bobbin carrier according to claim 4, characterized in that gripping elements (29, 30) for the two tubes (17) or bobbins (16) are arranged in each case. 6. Tube and bobbin delivery device according to claim 4 or 5, characterized in that the gripping elements (29, 30) are activatable pneumatically. 7. The tube and bobbin transport device according to claim 1, wherein the gripping device (26) is mechanically connected to at least one transport belt inter-vehicle part (9). . 8. The tube and bobbin carrier according to claim 7, characterized in that an angle gearing (44) is provided for mechanical coupling. 9. Tube and bobbin transfer device according to claim 8, characterized in that the angle gear device (44) can be connected to a step motor (47). 10. A fixed gear (33) engages with the swivel shaft (27), on which gear a toothed belt (32) runs,
Tube and bobbin delivery device according to any one of claims 5 to 9, characterized in that the belt is wound around another rotatable gear (34) in the range of the gripping elements (29, 30). .