JPS5943570B2 - Tube change method and device for spinning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a spinning machine such as a spinning machine or a yarn twisting machine, by extracting a full bobbin from a spindle and transferring it to a transfer device that is movable by laying it on the machine stand. The present invention relates to a pipe changing method and device in which the pipe is inserted into a spindle.

Generally, an automatic tube changer of the type that moves along the front of the spinning machine table includes an empty bobbin storage hopper, an empty bobbin supply device,
Since mechanisms such as a full bobbin sorting device are included in the main body of the device, the structure is very complicated and failures occur frequently (and the main body of the device is heavy, making handling and adjustment difficult).

Furthermore, there is a drawback that it is difficult to automate the processes before and after tube change in a spinning machine, such as loading empty bobbins into the main body and unloading full bobbins from the machine stand.

On the other hand, the type of automatic tube changer that processes all the spindles fixed to the spinning machine stand at once does not have the mechanical drawbacks that the automatic tube changer described above had, and is especially suitable for the machine before doffing. Empty bobbins are prepared at the front of the machine by a transfer device that can be moved along the table, and the doffed full bobbins are transferred to the subsequent process by the same transfer device, making it relatively easy to automate or save labor in the pre- and post-processes. However, in order to process all the spindles at once, it is necessary to strictly design the longitudinal dimensions of the machine, which not only requires fairly high precision for each part, but also requires only one set per spinning machine. Therefore, it is very expensive for each factory, and it is also uneconomical because it is used infrequently.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and device for changing tubes in a spinning machine that eliminates the drawbacks of mobile and fixed automatic tube changing devices and retains only the advantages.

The present invention is an invention that reasonably achieves the above object.

Hereinafter, a first embodiment embodying the present invention will be explained with reference to the drawings. In the drawings, 1 is a spinning machine frame M as shown in FIG.
A large number of spindles are vertically arranged at a constant pitch in the longitudinal direction on the upper part of the pipe, and when the pipe is full, there is a full-fill bin B on this spindle 1.

Reference numeral 2 denotes a transfer device movably disposed below the spindle 1 along the machine spindle rail M, and pegs 4 are arranged in a line on the conveyor belt 3 at the same pitch as the spindle. , an empty bobbin Bo for tube change, and a full bobbin B for which tube change has been carried in and out.

The automatic tube changing device of the present invention can simultaneously exchange empty bobbins and full bobbins for one or more spindles, but in this embodiment, empty bobbins and full bobbins can be exchanged for 10 spindles at the same time. are carried out simultaneously.

Further, although the pipe changing device of the present invention moves along a spindle row of a spinning machine having spindle rows on both sides, only one side will be described below.

Reference numeral 5 denotes a tube changer wagon that is movable along the machine base M by a drive mechanism (not shown), and 6 indicates a pair of tube changer wagons that are installed vertically on both sides of the front part (on the machine base M side) inside the wagon 5. These threaded rods are each rotatably supported by a pair of upper and lower bearings 7, and each has a pulley 8 fixed to its lower end.

Reference numeral 9 denotes a drive motor capable of forward and reverse rotation, which is fixed to the bottom rear side of the wagon 5, and a belt 11 is wound between the pulley 10 of the drive motor 9 and the pulley 8, which simultaneously drives the pair of screw rods 6. Can be rotated in the same direction.

Reference numeral 12 denotes a pair of elevating blocks having a mouth shape (see FIG. 2) that are screwed into each of the screw rods 6, and are moved up and down in synchronization with each other by the rotation of both screw rods 6.

Reference numeral 13 denotes six pairs of threaded rods that are rotatably inserted and supported in the front and back horizontal directions of each block 12 at a fixed position. A geared motor 15, which is fixed to the main body, is directly connected to the motor.

Reference numeral 16 denotes a pair of longitudinally movable blocks screwed onto each of the threaded rods 13, 17 a pair of support arms extending forward whose base ends are fixed to the longitudinally movable blocks 16, and 18 between the front ends of the support arms 17. The installed dotting bar 19 is a set of 10 full bobbin gripping devices attached to the front surface of the dotting bar 18, which are arranged in parallel in the arrangement direction of the spindles 1 at the same pitch as the spindles on the machine M. ing.

Therefore, when the drive motor 9 is rotated, the pulley 10
, the screw rod 6 is rotated via the belt 11 and the pulley 8, and along with this, the lifting block 12, the screw rod 13, the connecting member 14, the geared motor 15, and the back and forth movement block 16 are rotated.
, the support arm 17, the dotting bar 18, and the full bobbin gripping device 19 are moved up and down in unison.

Further, when the guard motor 15 rotates, the threaded rod 13 is rotated, the back and forth movement block 16 is moved back and forth, and the full bobbin gripping device 19 is moved back and forth via the support arm 17 and the dotting bar 18.

Numbers 6a, 7a...16a, 17a are the drive mechanism of the full bobbin gripping device 19, which is made up of the screw rod 6, bearing 7, back and forth movement block 16, and support arm 17. This is a drive mechanism for an empty bobbin gripping device 21, which will be described next, and is configured in the same way as the same drive mechanism on the inside.

20 is a connecting rod installed between the front ends of the support arm 17a;
Numeral 21 denotes ten empty bobbin gripping devices attached to the front surface of the connecting rod 20, which are arranged in parallel in the direction in which the pegs 4 of the transfer device 20 are arranged at the same pitch.

Therefore, the empty bobbin gripping device 21 is moved up and down and back and forth in the same manner as the full bobbin gripping device 190.

Reference numeral 22 denotes four fixed support blocks arranged at the same height in the upper and lower center inside the wagon 5, and as shown in FIG. Possibly supported.

Reference numeral 24 denotes a full bobbin drop guide cylinder which is fixed to the front end of the support arm 23 and has a substantially flat rectangular cylinder shape, and nine partition plates 25 are interposed inside thereof to form ten passages 26. Pig 4 on the same pitch as peg 4 on transfer device 2
are arranged in parallel in the arrangement direction.

27 is a lower inclined portion 24 of the full bobbin drop guide tube 24.
A supply port 28 with an open front surface is a full bobbin delivery member having an L-shaped cross section and mounted on a shaft 29 so as to be tiltable on both sides of the lower end of the guide tube 24, as shown in FIGS.
A spring 30 is wound around the coaxial 29 and one end of the spring 30 is attached to the delivery member 28.
The transfer member 28 is energized in the clockwise direction in FIG. 3 by being engaged with the vertical portion 28a of the guide cylinder 24 and the other end thereof being engaged with the lower end of the guide tube 24.

Note that the horizontal portion 28b of the transfer member 28 is held in a fixed position by the lower edge of the guide tube 24.

Reference numeral 31 denotes ten engagement recesses for full bobbins, which are cut out in the horizontal portion 28b of the transfer member 28 at the same pitch as the pegs 4 on the transfer device 2, and are notched to allow the full bobbin to fall from the passage 26 of the guide tube 24. It is possible to engage the lower end of a fully loaded bobbin.

Reference numeral 32 denotes an air cylinder fixedly installed at the center inside the fixed support block 22, and the front end of the piston rod 33 is connected to the rear surface of the full bobbin drop guide cylinder 24.

Therefore, when the air cylinder 32 is operated, the full bobbin drop guide tube 24 is moved back and forth via the piston rod 33.

Next, a method of actually changing tubes using the tube changing device for a spinning machine constructed as described above will be explained with reference to FIGS. 1 and 4 a"'-e.

Now, Figure 1 shows that the empty bobbin B is transferred by the transfer device 2 at the bottom of the spinning machine.
o is conveyed and supplied along the spindle row of the spinning machine, and then the wagon 5 of the tube changing device is moved to a predetermined position by a drive mechanism in order to exchange the full bobbin B on the spindle 1 with the empty bobbin Bo on the transfer device 2. This shows the state before the pipe switching operation starts, when the pipe is moved along the stand M.

In this state, the full bobbin gripping device 19 is at the highest position and the most forward position, corresponding to the full bobbin B on the spindle 1, and the mechanical bobbin gripping device 21 corresponds to the empty bobbin Bo on the peg 4. , full bobbin fall guide tube 24
This shows the state in which the vehicle has moved backward into the wagon 5.

At this time, when the motors 9 and 9a are rotated forward, the lifting blocks 12 and 12a are moved down, the full bobbin gripping device 19 and the empty bobbin gripping device 21 are moved down, and the full bobbin B on the spindle 1 and the empty bobbin on the peg 4 are moved down. The bobbin Bo is gripped by both bobbin gripping devices 19 and 21, respectively, as shown in FIG. 4a.

Next, both bobbin gripping devices 19 and 21 hold both bobbins B.

After gripping Bo, when the screw rods 6, 6a are reversed, both bobbin gripping devices 19, 21 move upward, and when the full bobbin gripping device 19 is raised to the highest level as shown in FIG. When the rod 6 is stopped and the threaded rod 13 is rotated forward by the geared motor 15, the full bobbin gripping device 19 is moved back into the wagon 5 as shown in FIG. The screw rod 13 is stopped to make the full bobbin gripping device 19 stand still.

When the air cylinder 32 is actuated almost simultaneously with the backward movement of the full bobbin gripping device 19, the piston rod 33
is moved forward, and as a result, the full bobbin drop guide tube 2
4 is moved forward as shown in FIG. is moved until the passage 26 corresponds to the full bobbin gripping device 19 and then stopped.

When the full bobbin gripping device 19 releases its grip on the full bobbin B in this state, the full bobbin B is dropped into the passage 26 of the guide cylinder 24 and passes through the passage 26 to each engagement recess 31 of the delivery member 28. delivered to.

At this time, when the full bobbin B is placed on the transfer member 28, it resists the elasticity of the spring 300 due to its own weight and becomes a horizontal state as shown in FIG. becomes.

When the air cylinder 32 is operated after the full bobbin B is transferred onto the peg 4, the guide tube 24 and the transfer member 28 are retracted via the piston rod 33 and returned to the inside of the wagon 5 as shown in FIG. Prepared for the next pipe change operation.

The full bobbin gripping device 19, which has become empty after dropping the full bobbin B, is moved from the retreated position shown in FIG. 4e to the geared motor 1.
It is moved forward by 50 rotations and returned to the state shown in FIG. 1 before the start of pipe change, in preparation for the next pipe change operation.

On the other hand, the empty bobbin gripping device 21, which has been moved upward as shown in FIG. 4C, is further moved upward, and as shown in FIG.

After that, rotate the guard motor 15a to tighten the screw rod 13a.
When rotated forward, the empty bobbin gripping device 2-1 is moved forward and moved above the spindle 1 of the machine M.

Next, when the screw rod 6a is reversed, the lifting block 12
The empty bobbin gripping device 21 is moved down via a, and the empty bobbin B is
o is inserted onto the spindle 1.

After the empty bobbin holding device 21 transfers the empty bobbin BO to the spindle 1, it is returned to the state before the start of the tube change as shown in FIG. 1 by an operation completely opposite to the above-described operation, and is prepared for the next tube change operation.

With the above, one tube change operation is completed, and both bobbin gripping devices 19,
21 and the full bobbin drop guide tube 24 are in the same position as when starting the tube change as shown in FIG.

Note that the full bobbin B transferred onto the transfer device 2 by the above-mentioned tube changing operation is collected by the conveyor belt 3.

When the exchange of empty bobbins Bo and full bobbins B for the 10 spindles 1 is completed in this way, the wagon 5 moves to the machine M in order to exchange the next 10 spindles 1.
Move along 10 pitches and repeat the same operation.

In this way, in the pipe changing device of the present invention, the spindle 1
The full bobbin B taken out from above is not stored in the wagon 5 but is transferred onto the transfer device 2, and the empty bobbin Bo to be inserted onto the spindle 1 is also not stored in the wagon 5. , there is no need to install a storage device for empty bobbins Bo and full bobbins B in the same wagon 5.

Therefore, the structure is simpler and lighter than the conventional wagon-type tube changer equipped with such a storage device.

Furthermore, maintenance of the device is easy and manufacturing costs are low, making it economical.

Furthermore, all the weights are in unison.

Compared to the tube changing device of the present invention, the tube changing device of the present invention is a mobile type, and one device can handle a large number of spinning machines.
Its operating rate can be increased.

Therefore, the cost per spinning machine can be kept low.

Furthermore, since the pipe switching device is a mobile type, when a simultaneous pipe switching device is used, it is not necessary to strictly design the longitudinal dimension of the machine M.

Particularly, in the present invention, when exchanging a full bobbin B on the machine M with an empty bobbin Bo on the transfer device 2, the empty bobbin gripping device 21 grasps the empty bobbin Bo from the transfer device 2, and the spindle 1
Until the full bobbin is transferred to the top, the full bobbin B on the spindle 1 is pulled out by the full bobbin gripping device 19, dropped onto the full bobbin drop guide tube 24, and transferred onto the transfer device 2. There is no need to lower the gripping device 19 to the transfer device 2 side, making it possible to facilitate the operation of the full bobbin gripping device and shorten the tube change time.

Further, in the present invention, the fully loaded bobbin B is dropped by its own weight and transferred to the transfer needle placement soil, so power consumption can be reduced.

As described in detail above, the present invention extracts a full bobbin from the spindle of a spinning machine and transports it onto a transfer device that is movable along the machine stand, while empty bobbins on the intermediate transfer device are transported onto the spindle and transferred thereto. In this method, a full bobbin gripping device mounted on a wagon movable along the machine base extracts the full bobbin from the spindle, and an empty bobbin gripping device also mounted on the wagon removes the full bobbin from the spindle. Remove the empty bobbin from the device and insert it onto the empty spindle, and while transferring it, move the full bobbin drop guide tube attached to the wagon forward to move the lower end of the bobbin to the empty spindle. After moving the full bobbin holding device above the full bobbin drop guide tube, the full bobbin is dropped into the guide tube and transferred onto the transfer device. Since there is no need to move the full bobbin gripping device downward toward the transfer device side, it is possible to shorten the tube change time, make the operation of the full bobbin gripping device easier, and prevent the full bobbin from falling due to its own weight. This has the effect of reducing power consumption.

Note that the full bobbin gripping device 19 and the empty bobbin gripping device 21 can be housed inside the wagon 5 as needed when the wagon 5 is moving.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing a first embodiment of a pipe switching device embodying the present invention, FIG. 2 is a plan view, and FIG. 4a to 4e are explanatory diagrams for explaining the steps of the pipe switching method and the operation of the pipe switching device. Spindle 1, transfer device 2, wagon 5, screw rod 6.6a
, 13, 13a, support arm 17° 17a, full bobbin gripping device 19, empty bobbin gripping device 21, full bobbin drop guide cylinder 24, passage 26, supply port 2γ, delivery member 28°

Claims (1)

[Claims] 1. A full bobbin is extracted from the spindle of a spinning machine, and the bobbin is carried onto a transfer device that is movable along the machine stand, and an empty bobbin on the transfer device is carried onto the spindle and inserted into it. In the Shishida pipe changing method, a full bobbin gripping device mounted on a wagon movable along the machine base extracts the full bobbin from the spindle, and an empty bobbin gripping device also mounted on the wagon pulls out the full bobbin from the transfer device. The upper empty bobbin is removed and inserted onto the empty spindle, and while the bobbin is being transferred, the full bobbin fall guide tube, which is also attached to the wagon, is moved forward and its lower end is transferred into the window. After the full bobbin holding device is moved above the full bobbin drop guide cylinder, the full bobbin is dropped into the guide cylinder and transferred onto the transfer device. Tube change method for spinning machines. 2. A tube changing device which extracts a full bobbin from the spindle of a spinning machine and transports it onto a transfer device that is movable along the machine stand, while transporting an empty bobbin on the transfer device onto the spindle and inserting it into the spindle. The wagon movable along the machine has a lifting mechanism that moves up and down between the spindle and the transfer device, a back-and-forth movement mechanism that moves back and forth independently, and a wagon that moves up and down and back and forth between the spindle and the transfer device. an empty bobbin gripping device, another elevating mechanism that moves up and down above the spindle, another back-and-forth movement mechanism that moves back and forth independently, and a full bobbin that moves up and down and back and forth by both mechanisms. The wagon is equipped with a gripping device, and the wagon is further equipped with another back and forth movement mechanism that moves back and forth.
A pipe change for a spinning machine, which is moved back and forth by the same mechanism, and is provided with a full bobbin fall guide tube into which a full bobbin dropped from the upper part of the wagon during forward movement is guided and inserted onto the transfer device. Device. 3. The spinning machine according to claim 2, wherein the lifting mechanism for lifting and lowering both bobbin gripping devices is constituted by a pair of screw rods rotated by a motor and a pair of lifting blocks screwed to the screw rods. Tube change device. 4 The back-and-forth movement mechanism that moves both bobbin gripping devices back and forth includes a pair of threaded rods rotatably attached to a pair of lifting blocks by a motor, a back-and-forth movement block screwed to the same threaded rods, and a back-and-forth movement block. 3. The pipe changing device for a spinning machine according to claim 2, comprising a pair of support arms fixed to the pipe. 5. The tube changing device for a spinning machine according to claim 2, wherein the full bobbin drop guide tube has a transfer member tiltably biased upward at its lower end.