JPH0325525B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a roving frame, in which full bobbins doffed from a roving frame and empty bobbins to be supplied to the roving frame after doffing are placed and transferred in the longitudinal direction of the roving frame. This invention relates to a bobbin transfer device.

Prior Art and its Problems In recent years, the adoption of upper-support flyers made of light alloy in roving frames has facilitated higher speeds and larger packages. However, on the other hand, due to the increase in speed and the use of large packages, the work of changing tubes, carrying out full bobbins, and carrying in empty bobbins on roving machines has become labor intensive. Many tube changers and bobbin transfer devices have already been proposed.

These conventional devices, as disclosed in Japanese Patent Application Laid-Open No. 58-98435, Japanese Patent Publication No. 57-27214, or Japanese Patent Application Laid-Open No. 57-106729, are equipped with a bobbin conveyor such as a peg conveyor along the front surface of a rover frame. A transfer device is installed nearby, and in front of the bobbin transfer device, there is a mobile tube changer that moves intermittently in the longitudinal direction of the machine to change the tubes to a predetermined weight, or a mobile tube changer that changes the tubes of all the spindles at once. A mobile tube changer or a simultaneous tube changer is installed to perform automatic tube change by replacing full bobbins on the roving frame with empty bobbins on the bobbin transfer device. However, in these conventional devices, since the bobbin transfer device is installed close to the front of the roving frame, full bobbins and empty bobbins are placed on this bobbin transfer device during operation of the roving frame. This causes problems in repair work such as roving thread breakage. Therefore, by rotating the bobbin transfer device in conjunction with the tube change operation of the tube change machine, full bobbins are carried out and empty bobbins are carried in, and the full bobbin transfer is completed by the time the tube change is completed. Alternatively, the fully loaded bobbin is carried out immediately after the tube change is completed, and the bobbin transfer device installed near the front of the machine frame is used as a stepping stone while the roving frame is in operation. Therefore, this bobbin transfer device cannot be used as a reserve location for full and empty bobbins, and when the full and empty bobbins of the roving machine are automatically transferred to and from the roving machine for the next process,
Separate storage locations for full and empty bobbins to be transported must be provided, but in existing factories with limited space, it was not possible to create a storage location for full and empty bobbins unless the number of spinning machines was reduced. For this reason, in existing factories with limited space, automatic transport of roving bobbins cannot be carried out, and even if only the tube change of the roving machine is automated, it will only eliminate the heavy labor involved in changing the tube, but it will require less labor. It is often unprofitable because it is not possible to reduce the amount of roving, and it is difficult to automate the tube change in the roving machine at the same time as automatic conveyance of the roving bobbin or automatic thread change, etc., which have a large investment effect. Ta.

In addition, as mentioned above, in the conventional device in which a bobbin transfer device such as a peg conveyor is installed close to the front of the roving frame to perform automatic tube change, if the tube change machine breaks down, the bobbin transfer device must be manually changed. In this case, if the bobbin transfer device is installed close to the front of the machine, the worker will have to use his or her back to take out the heavy full bobbin from the top of the roving frame, making it difficult to change the bobbin manually. It was hot.

Furthermore, in the automatic tube change method for a roving machine disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 58-98435, a bobbin transfer device is installed near the front of the roving frame,
In the tube changing machine that moves in front of the bobbin transfer device,
Two sets of tube changing devices, each consisting of a take-out section dedicated to full bobbins and an insertion section dedicated to empty bobbins, which operate separately, are arranged side by side to allow simultaneous exchange of full bobbins and empty bobbins. For this reason, the pipe changer becomes complicated and large. In addition, two roving machines are installed opposite each other as shown in Fig. 1 in consideration of the work efficiency of the machine holding workers. Unless it was turned 180 degrees on the path at the end of the machine or on the transport vehicle, it could not be shared by two roving machines installed opposite each other. In addition, in this conventional automatic tube changing method, the tube changing machine and a number of devices such as the belt conveyor of the bobbin transfer device, the full bobbin unloading device at both ends of the machine, and the empty bobbin feeding device operate in conjunction with each other. In order to do this, the control devices for each device are also complicated, which has the disadvantage that if even one of these devices breaks down, the entire device stops working.

Furthermore, the above-mentioned Japanese Patent Publication No. 57-27214 and Japanese Patent Publication No. Sho 57-27214
In the automatic pipe changing method using a simultaneous pipe changing machine as disclosed in Publication No. 57-106729, it is necessary to install a large and expensive simultaneous pipe changing machine for each rover, which reduces equipment costs. Despite the soaring prices, it is rarely used, and it has the disadvantage of being unprofitable, especially in factories that mainly spin fine-count roving.

Summary and Purpose In view of the shortcomings of the prior art, the present invention provides a working path of an appropriate width for workers to pass through on the front of the machine stand of a roving frame, and provides a working path in the longitudinal direction of the machine stand in front of the working path. The feature is that a rotating peg conveyor is installed along the roving frame, and even if a full bobbin or an empty bobbin is placed on the peg conveyor during the operation of the roving machine, various repairs such as repair work when the roving breaks in the roving machine can be carried out. You can work freely and it can be used as a reserve place for full and empty bobbins, and when the full and empty bobbins of the roving frame are automatically transferred between spinning machines in the next process, it is a reserve place for full and empty bobbins. There is no need to specially install a roving bobbin, making it easy to automatically transport roving bobbins in an existing factory with limited space. , pipe changing can be carried out freely within the long period of the roving frame's tube changing cycle, and furthermore, tube changing on the roving frame can be carried out either manually or by using a mobile tube changing machine, In addition, a mobile tube changer makes the tube changer easier and more compact when exchanging full bobbins and empty bobbins at the same time. By disposing the peg conveyor in the center between the roving frames and sharing the peg conveyor between the two roving frames installed oppositely, the equipment cost and installation area can be halved, and the drawbacks of the conventional technology described above can be eliminated. It is an object of the present invention to provide a bobbin transfer device for a roving frame, which facilitates automatic tube change and automatic transport of roving bobbins in the roving frame.

Embodiments Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings. In FIG. 1, numeral 1 indicates a roving frame, and as shown in FIG. Double rows of top-supported fryers 4 are suspended, and the fryers 3 are rotated at high speed via a drive shaft and gears arranged in the top rail 2. Further, a bobbin guide leg 4 is protruded from the center of the flyer 3 and is inserted into the upper hole of the bobbin 5 to constantly support the upper part of the bobbin throughout the entire movement of forming the roving bobbin. On the other hand, below the flyer 3 suspended on the top rail 2, there is provided a bobbin rail 6 that moves up and down for forming the roving bobbin, and within the bobbin rail 6 is a bobbin wheel 7 that is concentric with the flyer 3. The bobbin wheel 7 is rotated at high speed via the drive shaft and gears, and the lower hole of the bobbin 5 is inserted into the protrusion 7a of the bobbin wheel 7, and the protrusion 7a of the bobbin wheel 7 is inserted into the protrusion 7a of the bobbin wheel 7.
The bobbin 5 is configured to rotate at high speed together with the bobbin wheel 7 by engaging the engagement groove of the bobbin 5 with the engagement protrusion implanted in the bobbin wheel 7. Therefore, the bobbin 5 fits into the bobbin guide leg 4 of the flyer 3 and the protrusion 7a of the bobbin wheel 7 and is supported vertically, rotates at high speed integrally with the bobbin wheel 7, and moves the bobbin rail 6 up and down. It moves up and down along with the movement, and the roving twisted by the flyer 3 is wound up in layers to form a full bobbin 8. Further, when a full bobbin 8 is formed and the machine is stopped, the bobbin rail 6 is lowered from the winding position to the tube change position shown in FIG. 2 to complete the tube change preparation.

As shown in FIGS. 1 and 2, on the front side of the machine frame of this roving frame 1, there is a working passage 9 of an appropriate width through which workers, a tube changer 27, etc. to be described later can pass, a passage 10 on both ends of the frame,
It is open along the entire length of the machine so that it can communicate with 11. Reference numeral 12 denotes a floor rail for a tube changer laid on the floor of this working passage 9, and 13 denotes a bobbin transfer device installed along the front side of this working passage 9. This bobbin transfer device 13 has a frame 14 that extends over approximately the entire length of the machine base and is fixed on the floor. The destination chain wheels 17, 17 are fixed at an appropriate interval, and the left and right drive shafts 15, 16
An endless chain 18, 18 is wound between the chain wheels 17, 17, and a number of plates 19 are fixed to the attachments of the endless chains 18, 18.
The pegs 20 in the front and rear rows are arranged in a staggered manner at pitches corresponding to the bobbin pitch P of the roving frame and with the same spacing as the spacing between the front and rear rows of the bobbin wheel 7 of the roving frame, and the peg conveyor 21 is connected to the frame body. 4
It is connected via a V-belt or the like to a geared motor 22 with a forward/reverse brake provided at one end of the machine so that it rotates in the longitudinal direction of the machine. As shown in FIG. 2, this peg conveyor 21 has a height H of the surface on which the empty bobbin 5 (full bobbin 8) is placed.
The height S is set to be substantially the same as the height S of the bobbin mounting surface 7b of the bobbin wheel 7 that protrudes onto the bobbin rail 6 that has descended to the tube change position. Incidentally, on the inner surface of the frame body 14, two guide plates 23 (upper and lower) for holding the upper and lower plates 19 horizontally are fixedly installed over substantially the entire length of the peg conveyor 21. The bobbin transfer device 13 also includes a peg conveyor 21.
A plurality of limit switches 24a, 24b, 24c (or proximity switches) are used to stop each peg 20 at an appropriate position at a tube change position corresponding to the bobbin wheel 7 of the roving frame 1, an empty bobbin take-out position, and an empty bobbin supply position, respectively. ) and switchdog 25a,
Appropriate position stopping means such as 25b and 25c are provided.

On the other hand, a rail 26 is laid on the floor of the passage 10 on the machine end side of the roving frame 1, and a transport vehicle 28 on which a tube changer 27 is mounted is arranged on the rail 26. This tube changer 27 is connected to a truck 29 that runs on the floor rail 12 of the work passage 9 provided in the front of the roving frame 1, and is located above the truck 29.
Full bobbin take-out rods 30 of two types, long and short, correspond to the full bobbins 8 on the bobbin rail 6 that have descended to the tube change position, and suspend and take out the full bobbins 8 from the upper part.
A, 30B and its full bobbin removal rod 30A, 30
A holding rod 31 which is located below B and holds the lower part of the full bobbin 8, and a bobbin transfer device 13 provided on the other side.
Empty bobbin take-out rods 32A, 32B of two types, long and short, which correspond to the empty bobbins 5 on the peg conveyor 21 and take out the empty bobbins 5 by suspending them from the upper part, and their holding rods 33, and the full bobbin take-out rods 30A, 3.
0B and holding plate 31, empty bobbin take-out rod 32A,
32B and the holding rod 33 toward and away from each other; a lifting device 35 that raises and lowers both the take-out rod and the holding rod; a full bobbin 8 and an empty bobbin 5.
It is equipped with a rotating device 36 that rotates both extraction rods by 180 degrees in a horizontal plane to change their positions after taking out the extractor.
It travels intermittently from one end of the roving frame 1 to the other end, and simultaneously exchanges full bobbins 8 on the roving frame placed on both sides of the working path 9 and empty bobbins 5 on the bobbin transfer device 13 for multiple spindles. It's summery.

Also, one end side of the bobbin transfer device 13 (upper side in Fig. 1) installed at the front side of the working passage 9 at the front of the roving machine.
For example, the present applicant filed an application earlier, and
A roving bobbin transfer device 37 and a bobbin lifting device 38 as disclosed in Japanese Patent No. 41919 are provided, and the bobbin lifting device 38 moves full bobbins 8 on the peg conveyor 21 to two by the transferring device 37. 38 to the peg 39, and then the full bobbin 8 is lifted upward by the bobbin lifting device 38, and is successively suspended by the conveying tool 41 of the aerial roving bobbin conveying device 40 waiting above it. I'm starting to let them do it. The roving bobbin transfer device 37 and the bobbin lifting device 38 are also used when carrying the empty bobbin 5 returned from the roving frame in the next process to the peg conveyor 21 of the bobbin transfer device 13. Furthermore, it is not necessary to provide the transfer device 37 and the bobbin lifting device 38 for each bobbin transfer device; instead, a floor rail is laid in the passage 11 at the end of the machine, and the transfer device and the bobbin lifting device are installed on the floor rail. It may be configured to be movable, and a plurality of bobbin transfer devices 13 may be handled by one set of transfer device and bobbin lifting device.

Next, the operation of the above embodiment will be explained. Rover 1
During operation, the roving bobbin conveying device 4 is removed from the roving machine side.
When the empty bobbin 5 is returned to the branch transport rail 42 side of the roving machine, the empty bobbin 5 suspended by the transport tool 41 of the roving bobbin transport device 40
The bobbin elevating device 38 and the transfer device 37 insert two pegs into the pegs 20 of the peg conveyor 21 that circulates intermittently, and the pegs 20 are sequentially moved to the other side. When the empty bobbin 5 is inserted and corresponds to the empty bobbin being wound on the roving frame 1, the limit switch 24a of the bobbin transfer device 13 is operated by the switch dog 25a to move the peg conveyor 21 to a specified position. Stop at the pipe change position. after that,
When the roving frame 1 becomes full and its operation is stopped, the bobbin rail 6 descends from the winding position to the pipe changing position shown in FIG. 7-1 and stops. Next, when the tube change preparation for the roving frame 1 is completed, the tube change machine 2, which has been waiting at the end of the frame of the roving frame 1, is moved as shown in FIG.
7 starts from above the transport vehicle 28 and starts moving along the working path 9 in front of the roving machine from one side of the machine end (lower side in Figure 1) to the other side, and the pipe changer 27 moves from one end of the machine machine to the other side. When approaching the first tube change position, the proximity switch 43 attached to the machine side of the trolley 29 detects the proximity body 45 attached to the footstep 44 on the front of the roving machine, and stops at the predetermined tube change position ( Figure 7-1).
When the pipe changer 27 stops at the pipe change position, the seventh
- Full bobbin take-out rod 3 in standby position as shown in Figure 1
0A, 30B and the holding rod 31, and the empty bobbin take-out rods 32A, 32B and the holding rod 33 on the other side move simultaneously in opposite directions (to the right and left in FIG. 7-1) via the forward and backward movement device 34. , captures the full bobbins 8 (four pieces) on the bobbin rail 6 and the empty bobbins 5 (four pieces) on the peg conveyor 21 at two places, the upper and lower parts. Next, when the take-out rods and holding rods on both sides that have captured the full bobbin 8 and the empty bobbin 5 are raised via the lifting device 35, the lower holes of the captured full bobbin 8 and the empty bobbin 5 are exposed to the protrusion 7a of the bobbin wheel 7. Then, it separates from the peg 20 and enters the state shown in FIG. Next, the full bobbin take-out rods 30A, 30B and the holding rod 31 that hold the full bobbin 8, and the empty bobbin take-out rods 32, 32B and the holding rod 33 that hold the empty bobbin 5 are moved to the seventh position via the back and forth movement device 34. When simultaneously retreating from the forward end position shown in Figure 2 to the retreat position shown in Figure 7-3,
Both of the extraction rods and the holding plate are rotated by 180 degrees in a horizontal plane via the rotation device 36 to change their positions (FIG. 7-4). As a result, the full bobbin take-out rods 30A, 30B holding the full bobbin 8 and the holding rod 31 are transferred from the roving machine side to the bobbin transfer device 13 side, and the full bobbin take-out rods 32A, 32 holding the empty bobbin 5 are transferred from the roving machine side to the bobbin transfer device 13 side.
B and the holding rod 33 are simultaneously displaced from the bobbin transfer device 13 side to the roving frame side. Next, after both of the displaced extraction rods and the holding rod move forward simultaneously in the opposite direction via the forward and backward movement device 34, the elevating device 3
5, the lower hole of the empty bobbin 5 is fitted into the protrusion 7a of the bobbin wheel 7, and at the same time the lower hole of the full bobbin 8 is also inserted into the peg 20 of the peg conveyor 21, as shown in FIG. 7-5. inserted,
As a result, the exchange of the full bobbin 8 and the empty bobbin 5 for the first four spindles is completed at the same time. When the first tube change is completed, the full bobbin take-out rods 30A, 30B and the holding rod 31, and the empty bobbin take-out rods 32A, 32B are removed.
The holding rods 33 are simultaneously retracted from their respective forward end positions via the forward/backward movement device 34, detached from the full bobbin 8 and empty bobbin 5 held therein, and returned to the retracted position shown in FIG. 7-1. Next, the pipe changing machine 27 starts from the first pipe changing position, moves to the next pipe changing position, performs pipe changing for the next four spindles in the same manner as above, and further performs this pipe changing work for all spindles. After traveling in the opposite direction, it returns to the carrier vehicle 28 at the end of the machine. Further, the pipe changing machine 27 that has completed the pipe changing is moved to the next Revolving frame via the transport vehicle 28 and stands by. On the other hand, the bobbin rail 6 of the roving frame 1, which had been lowered to the tube change position, rises to the winding start position, and the bobbin guide leg 4 of the flyer 3 enters the upper hole of the empty bobbin 5 after the tube change. After the tube is inserted, operation resumes, but in this case, since the tube changing machine 27 has been removed from the working passage 9 at the front of the machine, the worker enters this working passage 9 and inserts the rough material into the empty bobbin. You can freely perform tasks such as winding yarn ends and repairing roving thread spindles. On the other hand, the bobbin transfer device 13
The full bobbin 8 doffed onto the peg conveyor 21 does not interfere with the worker's work on the roving frame 1 because the bobbin transfer device 13 is disposed at the front side of the working path 9. At an appropriate time until the next tube change, the yarn is transferred to the roving bobbin conveying device 40 via the transfer device 37 and the bobbin lifting device 38, and automatically conveyed to the spinning machine. Further, since the tube changer 27 of this embodiment simultaneously exchanges the full bobbin 8 and the empty bobbin 5 as described above, the tube change time is shortened, and the time when the roving frame is stopped due to tube change can be reduced. In addition, since the pipe changer 27 of this embodiment has no directionality, it cannot be reversed and the two oppositely installed
It can be shared by multiple roving machines.

In the above embodiment, a case has been described in which one bobbin transfer device 13 is installed in one roving frame, but this bobbin transfer device 13 is installed in the center of two roving frames arranged opposite each other as shown in FIG. However, it is also possible to share the peg conveyor 21 of the bobbin transfer device 13 with two opposing spinning machines. In this way, the equipment cost and installation area of the bobbin transfer device 13 are halved, making installation particularly easy in existing factories with limited installation area. Further, in the above embodiment, a case has been described in which the tube change of the roving frame is performed by the tube change machine 27 that simultaneously exchanges the full bobbin 8 and the empty bobbin 5, but the present invention is not limited to this. Instead, the pipe changer 27 in the above embodiment
Empty bobbin take-out rods 32A, 32B and holding rod 33
is omitted and only the full bobbin 8 is doffed using the full bobbin take-out rods 30A, 30B and the holding rod 31, or a tube changing machine is equipped with a separate swing-type full bobbin take-out rod and holding rod. It is also possible to doff only the full bobbin 8 and insert the empty bobbin manually by using the bobbin transfer device. Before changing the tube, insert an empty bobbin into the bobbin transfer device, manually exchange the empty bobbin on the bobbin transfer device with the full bobbin of the roving machine, and transfer the full bobbin after the tube change. The yarn may be transferred to a roving bobbin conveying device via a device, a transfer device, a bobbin lifting device, etc., and then automatically conveyed to the spinning machine. Furthermore, in the above embodiment, the roving bobbin transfer device 37 and the bobbin lifting device 38 are provided at one end of the bobbin transfer device 13, and the roving bobbin is automatically moved by the overhead roving bobbin transfer device 40. Although the roving bobbin was conveyed, it is also possible to carry out automatic conveyance of this roving bobbin using a conveyance cart or the like that runs on the floor.

In addition, the number of spindles of conventional roving frames is often set to be less than one-fourth of the number of spindles of the spinning frame, that is, the number of bobbins for one row of creel. If full bobbins are fed to the creel of the spinning frame by automatic conveyance, the number of full bobbins will be insufficient, resulting in empty bobbins during the subsequent automatic bobbin change. When empty bobbins are automatically conveyed to the side, since there are a large number of empty bobbins, the empty bobbins remain on the conveying means, which poses a problem in the subsequent automatic conveyance of full bobbins. However, with the bobbin transfer device of the present invention, the number of pegs on the peg conveyor can be set in advance to be larger than the number of spindles on the roving frame, since the transfer of full bobbins and the introduction of empty bobbins can be carried out separately from the pipe change. For example, the number of full bobbins and empty bobbins can be adjusted on the bobbin transfer device, which is extremely convenient when automatically transporting roving bobbins and automatically changing threads in an existing factory.

Effects As described above, the present invention provides the following features:
A working passage with an appropriate width for workers to pass through is provided, and a bobbin transfer device using a peg conveyor that circulates in the longitudinal direction of the machine frame is installed along the front side of the working passage. Even if a full bobbin or an empty bobbin is placed on the roving machine, various tasks such as repair work when the roving thread breaks on the roving machine can be carried out freely, and the bobbin transfer device can be filled up and the empty bobbin reserved place. This eliminates the need to set up a special reserve area for full and empty bobbins when automatically transporting roving bobbins to and from a spinning machine for the next process. It becomes easy to carry out automatic conveyance of bobbins, and in that case, it is possible to carry out full bobbins on the peg conveyor and carry in empty bobbins freely within a long period of time for changing tubes of the roving frame. Further, the tube change of the roving frame can be carried out either manually or by using a mobile tube change machine, and the manual tube change operation becomes easy. In addition, when performing automatic tube change by simultaneously exchanging full bobbins and empty bobbins using a mobile tube change machine, the machine can be made simple and compact, and since there is no directionality, it is possible to perform automatic tube change. As shown in the figure, it is possible to share the pipe changer with two opposing spinning machines without having to change the direction of the pipe changer 180 degrees. Furthermore, since the number of full and empty bobbins can be adjusted on the bobbin transfer device, it becomes easy to carry out automatic transport of roving bobbins and automatic thread change in existing factories. Furthermore, by placing the bobbin transfer device using a peg conveyor in the center between two opposing roving frames and sharing the bobbin transfer device between the two roving frames, the equipment cost and installation area can be halved, making installation easier. Easy to install in existing factories with space limitations,
This method is characterized in that the drawbacks of the prior art are overcome, and automatic tube change in a roving machine, automatic transport of roving bobbins, etc. are facilitated.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is an intermediate sectional view, Fig. 3 is a plan view of the bobbin transfer device, Fig. 4 is a longitudinal sectional view of the bobbin transfer device, Fig. 5 is a plan view of the tube changer, and Fig. 6 is a roving bobbin transfer. Front view showing the device, bobbin transfer device, etc., No. 7
The figure is an explanatory diagram of the operation of the pipe changer. 1...Rovering machine, 9...Work passage, 13...Bobbin transfer device, 21...Petsug conveyor, 27...
Tube changer, 37... Roving bobbin transfer device, 3
8...Bobbin lifting device.

Claims (1)

[Scope of Claims] 1. A working passage of an appropriate width is provided in front of the frame of the roving frame for workers to pass through, and a peg conveyor that circulates in the longitudinal direction of the machine frame is installed along the front side of the working passage. Features a bobbin transfer device for roving machines. 2. Claim 1, characterized in that the peg conveyor is arranged in the center between two opposingly installed roving frames, and the peg conveyor is shared by the two opposingly installed roving frames. A bobbin transfer device for the described roving machine.