JPS60181330A - Doffer of roving frame - Google Patents

Abstract

PURPOSE:To exchange full bobbins for empty bobbins simultaneously only by operating a doffer alone, by setting a bobbin conveyor at the front side of an operation passageway in front of a stand of roving frame, laying a doffer of movable type at the end of the stand of the roving frame. CONSTITUTION:An operation passageway is set in front of a stand of roving frame, and the bobbin conveyor 17 such as a peg conveyor, etc. circulating in the longer direction of the stand is laid at the front side. The doffer 34 of the movable type is set at the end of the stand of the roving frame, and the doffer is equipped with the plural doffing arms 58A corresponding to the full bobbin 8 on the roving frame and the plural doffing arms 58B corresponding to the empty bobbins 5 on the conveyor, a device moving in front and in rear for making the doffing frames close and separate each other, the lifting device 55 moving vertically at the progress position, and a revolving device rotating 180 deg. at the retreat position.

Description

Detailed Description of the Invention Technical Field □ The present invention provides a working path and a bobbin transfer device along the front side of the machine base of a roving frame equipped with an upper-support type flyer, so that when the roving frame is full, the tubes can be changed. The full bobbin on the bobbin rail that has been lowered to the position and the empty bobbin prepared in advance on the bobbin transfer device are
A tube changer that runs intermittently through a working path provided between the roving frame and the bobbin transfer device takes out multiple bobbins at the same time, and after taking them out, full bobbins and empty bobbins are rotated 180 degrees on the tube changer, and both This invention relates to a tube changing device for a rover frame that simultaneously exchanges a plurality of bobbins by changing them to opposite sides.

Conventional technology and its problems In recent years, the adoption of upper-support type flyers made of light alloy has facilitated higher speeds and larger package sizes for roving frames. The work of changing tubes, carrying out full bobbins, carrying in empty bobbins, etc. has become labor intensive, and many tube changing devices have already been proposed to automate these tasks.

The conventional tube changing device for this roving frame can be roughly divided into, for example, as disclosed in Japanese Patent Publication No. 57-27214,
A bobbin transfer device using a peg conveyor is installed near the front of the roving frame, and a simultaneous bobbin changer is installed in front of the bobbin transfer device. A simultaneous tube change type tube change device for changing the tubes of all empty bobbins prepared on a bobbin transfer device simultaneously, and JP-A-58-
As disclosed in Japanese Patent No. 98435, a bobbin transfer device using a peg conveyor is installed near the front of the frame of a roving frame, a mobile type tube changer is installed in front of the bobbin transfer device, and the mobile type It is classified as a group tube i-type tube changing device that transfers full bobbins on the roving machine and empty bobbins prepared on the bobbin transfer device on the front of the machine using a tube changing device. In the pipe changing method using a changeable pipe changing device, a large and expensive simultaneous pipe changing machine is installed for each roving machine, which increases the equipment cost and is used infrequently, especially for fine-count roving. The disadvantage is that factories that primarily spin spinning are unprofitable. On the other hand, the latter method of pipe switching using a group switching type pipe switching device has the disadvantage that - compared to the simultaneous pipe switching type, the pipe switching time is longer; This has the advantage that the tube changer is smaller and can be shared by a plurality of rovering machines, so equipment costs can be lower than in the case of simultaneous tube change. However, in general, two roving machines are installed in consideration of the working efficiency of rich workers, and in such cases, the tube changing machine disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 58-98435 is used. For pipe changing machines with directional properties, the direction must be changed by 180 degrees on the path at the end of the machine or on the transport vehicle, or
It was not possible to share one tube switching machine with multiple roving machines unless one pair of roving machines installed opposite each other was replaced in the same direction.

In addition, the tube changer of the tube change method disclosed in Japanese Patent Application Laid-open No. 58-98435 has two sets of tube change mechanisms in parallel, each consisting of a take-out section dedicated to full bobbins and an insertion section dedicated to empty bobbins, which operate separately. Since the tube changer is complicated and large because the full bobbin and the empty bobbin are exchanged at the same time, this tube change method requires only one bell 1 of the tube changer and the bobbin transfer device. Since a large number of devices such as the conveyor, the full bobbin unloading machine at both ends of the machine stand, and the empty bobbin supply device operate in conjunction with each other, the control device for each device is also complex and large, and one of these devices However, it had the disadvantage that if it broke down, the entire device would stop working.

On the other hand, in conventional tube changing devices, the bobbin transfer device is installed close to the front of the roving frame, so full bobbins and empty bobbins are not placed on the bobbin transfer device during the operation of the roving frame. If this happens, repair work such as thread breakage will be hindered. 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. After the pipe change is completed, the full bobbin is immediately removed from the machine, and the bobbin transfer device installed near the front of the machine is used as a stepping stone while the roving frame is in operation. As a result, with conventional tube changing devices, the bobbin transfer device cannot be used as a reserve location for full and empty bobbins, and when full and empty bobbins of a roving frame are automatically transferred to and from the spinning machine for the next process. Not only is it necessary to set up a separate reserve location for full and empty bobbins to be transported, but the automatic transport of full and empty bobbins must be linked to the automatic tube change of the rover machine, which means that the full and empty bobbins cannot be stored. The control device for automatic transport equipment has become extremely complex.

In addition, with the conventional tube changing device in which the bobbin transfer device is installed close to the front of the machine frame of the roving frame, if the tube changing device breaks down, the tube must be changed manually, but in this case, the bobbin transfer device Because it was located close to the front, workers had to use their hips to take out the heavy full bobbins on the roving frame, making it difficult to change the tubes manually. Furthermore, since the bobbin transfer device is installed in front of the flyer section where fluff is often generated, fluff often accumulates on the bobbin transfer device, causing trouble. When the device is installed in front of the roving frame, one bobbin transfer device is required for each roving frame, which causes an increase in equipment costs.

Outline and Purpose In view of the drawbacks of the prior art, the present invention provides a working path of an appropriate width in the front of the frame of a roving frame, and a peg conveyor that circulates in the longitudinal direction of the machine in front of the working path. A movable tube changer is installed at the end of the roving frame, and a plurality of bobbins corresponding to full bobbins on the roving frame and empty bobbins on the bobbin transfer device are installed in the tube changer. Equipped with a Kien pipe switching arm, a forward and backward movement device that moves the left and right pipe switching arms toward and away from each other, a lifting device that moves them up and down in the forward position, and a turning device that turns them 180 degrees in the backward position, etc. When the roving frame is full, the tube changer is intermittently moved from one end of the working path to the other end, and after the roving frame is full, the full bobbin on the bobbin rail of the roving machine is lowered to the tube change position, and the bobbin transfer device The empty bobbins prepared above are taken out in advance using the left and right tube changing arms, and the full and empty bobbins are rotated 180 degrees on the tube changing machine to determine the position of each bobbin. The feature is that multiple tubes can be replaced at the same time by switching them to opposite sides, making the pipe changer simple and compact.
Full bobbins and empty bobbins can be exchanged simultaneously by operating the tube changer independently without interlocking the bobbin transfer device during tube change, which greatly reduces tube change time.Moreover, the direction of the tube changer is The tube changer can be shared with the oppositely installed roving frame without being reversed, and the bobbin transfer device can also be used as a reserve location for full and empty bobbins, and full bobbins and empty bobbins can be placed on the bobbin transfer device. Even if the roving is placed in the same position, you can freely wrap the end of the roving around the empty bobbin and repair work when the roving breaks, and you can change the pipe to take out the full bobbin and bring in the empty bobbin. This can be done at any time within the cycle, making it easier to manually change the pipe when the pipe changer breaks down, and also eliminating problems with the bobbin transfer device due to the accumulation of fluff. By placing it in the center between the two opposing roving frames, one bobbin transfer device can be shared by the two opposing roving frames, which eliminates the drawbacks of the prior art and is highly practical. The purpose is to provide a tube changing device for a roving frame.

EXAMPLES Hereinafter, the present invention will be explained in detail with reference to examples shown in the drawings. In Fig. 1, 1 indicates a roving frame, and this roving frame l
As shown in Fig. 2, there are double-row upper support type flyers 3 arranged in a staggered manner between the front and rear rows with a predetermined bobbin pitch P maintained in the longitudinal direction of the machine on the top rail 2 at the front of the machine. A predetermined number of fryers 3 are suspended from the top rail 2.
It is rotated at high speed via a drive shaft and gears located inside. 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 thread bobbin forming.

On the other hand, below the flyer 3 suspended on the top rail 2, there is a bobbin rail 6 that moves up and down to form a roving bobbin.
A predetermined number of bobbin wheels 7 concentric with the bobbin rail 6 are arranged, and the bobbin wheels 7 are rotated at high speed via a drive shaft and gears arranged in the bobbin rail 6. The lower hole of the bobbin 5 is fitted into the protrusion 7a of the bobbin wheel 7, and the engagement groove of the bobbin 5 is engaged with the engagement protrusion implanted in the protrusion 7a of the bobbin wheel 7. rotates at high speed together with the bobbin wheel 7. In addition, 7b is
This is the bobbin mounting surface of the bobbin wheel 7 on which the bobbin 5 is mounted. 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 at two positions, upper and lower, and is rotated at high speed integrally with the bobbin wheel 7. It moves up and down along with the vertical movement, and winds the yarn heated by the flyer 3 in layers to form a predetermined full bobbin 8. Further, when a full bobbin 8 is formed and the machine is stopped, the bobbin rail 6 descends with the full bobbin 8 from the winding position to the tube change position shown in FIG. 2 to complete the preparation for tube change. There is. Note that the height from the floor of the bobbin mounting surface 7b of the bobbin wheel 7 protruding from the upper surface of the bobbin rail 6 that has been lowered to the pipe changing position is S as shown in the figure.

As shown in FIGS. 1 and 2, on the front side of the machine frame of this roving frame I, there are working passages 9 of an appropriate width through which workers, a tube changer 34, etc. (described later), etc. can pass, on both ends of the machine frame. It is open over the entire length of the machine so as to communicate with IO and 11, respectively. Reference numeral 12 denotes two floor rails for a pipe changer installed on the floor of this work passage 9. Reference numeral 13 denotes a foot tape installed along the machine side of the working path 9. This foot tape 13 includes a proximal body 14 (or switch dog) for detecting the stop position of the pipe changer 34, which will be described later, and a foot tape for detecting the stop position of the pipe changer 34, which will be described later. Bars 16 having positioning holes 15 (or protrusions) provided at predetermined intervals for positioning the machine 34 at a predetermined pipe changing position are arranged in parallel over substantially the entire length of the machine base. Reference numeral 17 denotes a bobbin transfer device installed along the floor surface on the front side of the working path 9. This bobbin transfer device 17 has a frame I8 extending over substantially the entire length of the machine base, which is fixed on the floor, and left and right drive shafts 19 and 20 pivotally supported at both ends of the frame 18 in the longitudinal direction. Cheno wheel 21 for 2 pieces each
．． 21 are fitted in the frame 18 at appropriate intervals in the width direction, and the cheno wheels 21 of the left and right drive shafts 19 and 20
．． Endless chain 22.2.2 is wound between 21 and 21,
Further, a large number of plays 1 to 23 are fixed to the attachment members 1 to 1 of the endless chain 22, 22, and the upper plate 23 has a pitch corresponding to the bobbin pitch P of the roving frame 1, and a bobbin wheel 7 of the roving frame 411. The front and rear rows of begs 24 are arranged in a staggered manner with the same spacing as the front and rear rows to form a peg conveyor 25, and the peg conveyor 25 has a brake that is fixed to one end of the frame 18 and is capable of forward and reverse rotation. Gard motor 2G and ■belt 27 and ■
They are connected via pulleys 28, 29, etc., and rotate intermittently in the longitudinal direction of the machine base. Further, as shown in FIG. 2, this peg conveyor 25 has empty bobbins
The height H from the floor of the surface on which the full bobbin 8) is placed (in the illustrated example, the top surface of the plate 23) is the bobbin of the bobbin wheel 7 that protrudes from the top surface of the bobbin rail 6 that has been lowered to the tube change position. Approximately the same height S from the floor of the mounting surface 7b
is set to . Incidentally, on the inner surface of the frame 18, there are fixedly installed guide plates 30 in two stages, upper and lower, for holding the upper and lower plates 23 horizontally over substantially the entire length of the horizontal portion of the peg conveyor 25. In addition, this bobbin transfer device 17 is configured to move each peg 24 of the peg conveyor 25 to a pipe change position corresponding to the bobbin wheel 7 of the roving frame l, a take-out position for a full bobbin 8, and a supply position for an empty bobbin 5, respectively. A plurality of limit switches 31a, 31b, 31c (
or proximity switch) and switch dogs 32a, 3
Appropriate position stopping means such as 2b and 32c are provided.

On the other hand, rails 33.33 are laid on the floor of the passage lO on the machine end side of the roving frame l, and a transport vehicle 35 carrying a tube changer 34, which will be described later, is arranged on the rails 33.33. . Reference numeral 36 denotes a trolley for this tube changer 34, on which a pair of front and rear axles 38 on which left and right cars @ 37 running on the floor rails 12 of the work passage 9 are fitted are supported with an appropriate distance between them. A geared motor 39 with a brake capable of forward and reverse rotation is connected to the axle 38 of the vehicle through a Cheno wheel, a Cheno, etc., and the motor 39 is rotated in the forward or reverse direction to travel on the floor rail 12 intermittently or continuously. ing. Further, on the rover side (right side in FIG. 8) of this trolley 36, there is a detection means such as a proximity switch 40 (or limit switch) for detecting the stop position (tube change position) of the tube changer 34, and a tube changer. A retractable pin 41 and cylinder 42 are attached to position the machine 34 at a predetermined tube change position, and a proximal body 14 (or switch dog) disposed below the foot step 13 on the front of the roving machine and a positioning hole in the bar 16 are attached. They are arranged to correspond to each other. In addition, the other side of the trolley 36 (the 8th
(left side of the figure) also has a similar proximity switch 40A and pin 41
A and a cylinder 42 are attached, so that the tube change of the roving frame 1 on the left side in FIG. 1 can be carried out using the same tube vjfIj, 34.

Reference numeral 43 denotes a vertical shaft that is rotatably supported by a vertical bearing 44 attached to the approximate center of the upper surface of the truck 36. At the bottom of the vertical shaft 43 that is pivotally supported on the truck 36, As shown in FIGS. 2 and 8, the gear 45 is fixed,
A rotatably supported sector gear 46 meshes with the gear 45, and a swingable Revis-type cylinder 48 is connected with a pin to an arm 47 of the sector gear 46. , the vertical axis 43 is 18
A turning device 50 that rotates toward 0 degrees is connected. still,
The rotating device 50 in this illustrated example has a full bobbin 8 and an empty bobbin 5.
The speed curve of the vertical shaft 43 is configured to be a sinusoidal curve in order to reduce the inertial force at the time of starting and stopping when changing the position of the vertical shaft 43 . On the other hand, a swing arm 51 that projects in the front-rear direction (vertical direction in FIG. 5) of the truck 36 is fitted into the upper part of the vertical shaft 43, and guide pins 52 are attached to the guide pins 52 vertically attached to both ends of the swing arm 51. The guide piece 53 is fitted into the fitting hole 53a and placed on the swing arm 51 so as to be movable up and down.Furthermore, the upper surface of the guide piece 53, which is movable up and down, is fitted in the width direction of the cart 36 (left and right direction in FIG. 5). A pipe switching head main body 54 projecting from above is fixed via a pole I-', and an integrated guide piece 53 placed on the swing arm 51 and the pipe switching head main body 54 are arranged on the lower swing arm 51. It is designed to move up and down via a lifting device 55 using a cylinder or the like. Further, as the vertical shaft 43 and the rotating arm 51 rotate, the integral guide piece 53 and the pipe switching head main body 54 are moved to the position shown in FIG. 5 via the two guide pins 52.
It is designed to rotate alternately to 80 degrees. Two guide rods 56 are arranged in parallel on the lower side of the tube switching head main body 54 disposed above the swing arm 51 and are spaced apart from each other at an appropriate distance in the front-rear direction of the truck 36 (vertical direction in FIG. 5). , this 2
A pair of left and right slide brackets 57A and 57B are slidably fitted on both sides of the book guide rod 56 in the longitudinal direction, and rough edges are formed on the outer surfaces of the left and right slide brackets 57A and 57B, as shown in FIG. Full bobbins 8 in the front and rear rows on the spinning machine 1 and empty bobbins 5 in the front and rear rows on the bobbin transfer device 17
A plurality of pipe switching arms 58158B of two types, long and short, corresponding to the pipe switching arms 58158B are alternately fixed at predetermined intervals (the illustrated example shows the case of four pipes on one side). This pipe switching arm 58A,
58B has a fork-shaped distal end, as shown in FIG. 5, and the outer circumferential surface of the flange 5a at the upper end of the bobbin is fitted into the fork 58a, as shown in FIG. A matching step portion 58c is formed, and when the pipe changing arms 58A and 58B, which suspend the full bobbin 8 or the empty bobbin 5 from the forked portion 58a, rotate, the full bobbin 8 and the empty bobbin 5 are affected by the centrifugal force. This prevents it from flying outward. still,
A magnet or the like is attached to the bifurcated portions 58a of the tube changing arms 58A, 58B, and an iron plate is attached to the lower surface of the flange portion 5a of the bobbin.
The suspended full bobbin or empty bobbin 5 may be kept vertically by the attraction force of the magnet. Furthermore,
A swinging piece 59B is connected with a pin to the lower end of an L-shaped arm 59A on the lower surface of the pipe switching arms 58A, 58B, and a swinging piece 59B is formed into a bifurcated shape with a plate spring or the like on the front surface of the swinging piece 59B. A bobbin lower holder 61 with a horizontally attached holder 60 is fixed, and a forked holder 6 at the lower end of the bobbin lower holder 61 is fixed.
The swing of the suspended full bobbin 8 or empty bobbin 5 is restricted by the zero, and the bobbin 5 is held vertically. Also,
As shown in FIG. 7, a guide 62 attached to the tube changing head main body 54 is inserted into the center upper part of the left and right slide brackets 57A, 57B to which the tube changing arms 58A, 58B are fixed. Rack bar 63A that slides in the left and right direction,
63B are connected to each other, and the two latch flange 63A
The cylinders 63B and 63B mesh with pinions 64 pivotally supported in the center of the tube change ped body 54, and one of the slide brackets 57A is connected to a cylinder 65 for longitudinal movement that operates in the same direction as the rack bar. Left and right pipe switching arms 58A, 58B fixed to slide brackets 57A, 57B
A back-and-forth movement device 66 for moving the bobbin lower gripper 61 toward and away from each other in the left-right direction in FIG.
It is deployed together with 5-67. In addition, the left and right bobbin lower holders 61 and 61 attached to the bottom surface of this front and back movable bag are as follows:
Until pipe switching v&34 starts pipe switching, Figure 5 and 1
In the retracted position shown in Figure 4-1, and in Figures 2 and 14-
It is waiting in the lowered position shown in Figure 1.

In addition, on one end side (upper side in FIG. 1) of the bobbin transfer device 17 installed at the front side of the working passage 9 on the front side of the roving machine, for example,
A braiding bobbin transfer device 68 and a bobbin lifting device 69, which were previously filed by the present applicant and disclosed in Japanese Unexamined Patent Publication No. 58-41919, are provided, and the transfer device 6
The full bobbin 8 placed on the peg conveyor 25 of the bobbin transfer device 17 is taken out by 8 and transferred onto the peg 70 of the bobbin lifting device 69, and then the full bobbin 8 is moved upward by the bobbin lifting device 69. An aerial braiding bobbin conveying device 7 is lifted and is waiting above it in advance.
They are suspended from one conveyor 72 in sequence. Further, the roving bobbin transfer device 68 and the bobbin lifting device 69 are also used when carrying the empty bobbin 5 returned from the spinning machine side to the bobbin transfer device 17 for the next process.

Next, the operation of the above embodiment will be explained. During the operation of the roving frame 1, when the empty bobbin 5 of the braided bobbin used up in the spinning frame in the next process is returned to the branch conveyance rail 73 side of the roving frame 1 by the braiding bobbin conveying device 71, the roving frame 1 The empty bobbin 5 suspended on the conveying tool 72 of the thread bobbin conveying device 71 is inserted into the peg 24 of the peg conveyor 25 of the bobbin conveying device 17, which is intermittently rotated by the bobbin lifting device 69 and the transfer device 68. The empty bobbins 5 for one roving frame are inserted onto the peg conveyor 25, and when each of the empty bobbins 5 corresponds to the bobbin being wound on the roving frame 1, the bobbin The limit switch 31a of the transfer device 17 is actuated by the switch dog 32a to stop the peg conveyor 25 at a predetermined tube change position. Thereafter, when the roving frame 1 becomes full and its operation is stopped, the bobbin rail 6 of the roving frame 1 is lowered from the winding position to the tube changing position shown in FIG. 14-1. Next, the roving frame 1 (first
When the tube change preparation for the machine (on the right side of the figure) is completed, the tube change machine 34, which had been waiting at the end of the machine frame of the roving frame 1, starts from the transport vehicle 35 in response to a command from the roving machine or a manual command. Move the working passage 9 on the front of the spinning machine from one side of the frame end (lower side in Figure 1) to the other side, and the tube changer 34 moves to the first tube change position at one end of the machine frame (lower side in Figure 1). When approaching, the proximity switch 40 attached to the machine side of the truck 36 detects the proximity body 14 disposed below the footstep 13, and the pipe changing machine 34 stops at the first pipe changing position. When the pipe changing machine 34 stops, the cylinder 42 attached to the first carriage 36 operates, inserting the connected pin 41 into the positioning 615 of the bar 16, and positioning the pipe changing machine 34 at a predetermined pipe changing position (12th -1
figure). When the pipe changer 34 is positioned at the pipe change position, the cylinder 65 of the forward/backward movement device 66 is activated by the positioning completion signal.
The piston rod protrudes, and the left and right tube change arms 58A, 58B and the bobbin lower holder 61, which were waiting in the retreated position shown in FIG. It advances simultaneously in the directions (to the right and left in Figure 14-1) and reaches the forward position shown in Figure 14-2. As a result, the bifurcated portions 58a at the tips of the left and right tube switching arms 58A, 58B are connected to the full bobbin 8 on the bobbin rail 6,
The holder 6 of the lower bobbin lower holder 61 is inserted below the collar 5a at the upper end of the empty bobbin 5 on the bobbin transfer device 17.
0 comes into contact with the slope of the flange 5b at the lower end of the full bobbin 8 and the empty bobbin 5, and swings to the position shown by the imaginary line in FIG.
It is inserted above b.

Next, when the left and right pipe changing arms 58A, 58B and the bobbin lower holder 61 are raised from the lowered position to the raised position via the lifting device 55, the lower holes of the full bobbin 8 and the empty bobbin 5 are brought into contact with the protruding part of the bobbin wheel 7. Leaves 7a and peg 24,
The flange portion 5a at the upper end of the full bobbin 8 and the empty bobbin 5 is the tube change arm 58A.
, 58B, and the holder 60 of the bobbin lower holder 61 returns to the horizontal position shown by the solid line in FIG. 12, resulting in the state shown in FIG. 14-2. Next, left and right tube changing arms 58A holding the full bobbin 8 and the empty bobbin 5 vertically,
58B and the bobbin lower holder 61 are moved to the 14-2
When the left and right tube change arms 58A, 58B and the bobbin lower holder 61 are simultaneously retracted from the forward position shown in the figure to the retreat position shown in FIG.
Due to the protrusion of the piston rod 49, the piston rod 49 rotates about the vertical axis 43 together with the pipe switching head main body 54 in a horizontal plane by 180 degrees (
(in the illustrated example, they turn clockwise in FIG. 5), and their respective positions are switched to the opposite positions shown in FIG. 14-4. As a result, the pipe changing arms 58A, 58B holding the full bobbin 8 and the bobbin lower holder 61 move from the roving frame side to the bobbin transfer device side.
In addition, the tube changing arms 58A and 58 on the other side holding the empty bobbin 5 are
B and the bobbin lower holder 61 are moved to the bobbin transfer device side at the same time↓
;Displaced. Next, the displaced left and right tube switching arms 58A
, 58B and the bobbin lower holder 61 move forward simultaneously from the retreat position to the forward position by retraction of the cylinder 65 of the forward/backward moving device 66, and then descend from the raised position to the lowered position via the lifting device 55. As shown in Figure 5,
At the same time that the lower hole of the empty bobbin 5 is fitted into the protruding part 7a of the bobbin wheel 7, the lower hole of the full bobbin 8 is also fitted into the peg 24 of the peg conveyor 25, thereby changing the tubes for the first four spindles at the same time. finish. When the first pipe change is completed, the left and right pipe change arms 58A, 58B and the bobbin lower holder 61 are simultaneously retracted from their respective forward positions by the retraction of the piston rod of the cylinder 65 of the forward and backward movable bag W66, and the held full capacity is removed. After separating from bobbin 8 and empty bobbin 5, the first
Return to the retreat position shown in Figure 4-1. Next, pipe changer 3
After the cylinder 42 in the truck 36 is activated by the return signal and the bin 41 is moved backward, No. 4 starts from the first pipe change position and moves to the next pipe change position, and then moves to the next No. 4 in the same way as above.
After the pipe is replaced on the weight, and the pipe is changed over the entire weight, it is moved in the opposite direction and returned to the carrier vehicle 35 at the end of the machine. Further, the tube changer 34 that has completed the tube change is moved via the transport vehicle 35 to the ROVing machine where the tube change will be performed next, and is on standby. On the other hand, in the rover l, which has completed the tube change, the bobbin rail 6, which had been lowered to the tube change position, rises to the winding start position in response to an appropriate command such as a tube change completion signal, and the lower part of the empty bobbin 5 after the tube change is raised. After the bobbin guide leg 4 of the flyer 3 is inserted into the hole, operation begins again. In this case, since the tube changer 34 has moved out of the working passage 9 at the front of the machine, the worker enters the working passage 9 and performs tasks such as winding the roving end onto the empty bobbin, etc. You can freely carry out repair work on the roving spindle.

In addition, the full bobbin 8 that has been unloaded on the peg conveyor 25 of the bobbin transfer device 17 does not interfere with the workers' work on the roving frame 1 because the bobbin transfer device 17 is disposed at the front side of the work passage 9. Therefore, at an appropriate time until the next tube change, the yarn is transferred to the roving bobbin conveying device 71 via the transferring device 68 and the bobbin lifting device 69, and automatically conveyed to the spinning machine. In addition, the pipe changer 34 of this embodiment
As mentioned above, since the full bobbin 8 and the empty bobbin 5 are rotated 180 degrees on the tube changer and multiple bobbins are exchanged at the same time, the tube change time is shortened and the time when the Rover is stopped due to tube change is reduced. In addition, since the tube changing machine 34 has no directionality, there is no need for reversing, and it can be shared by two opposing roving machines by simply moving the passage on the end side of the machine stand. .

In the above embodiment, a case was explained in which the tubes were changed sequentially from the bottom to the top in FIG. 1 for the roving frame 1. If the diameter is smaller than the full bobbin diameter, the tube changer 34 is run continuously from the bottom side to the top side in Figure 1, and then intermittently runs in the opposite direction from the top side to the bottom side in Figure 1. If the tube is changed when moving downward from the tube, the full bobbin in the rear row will not interfere with the full bobbin in the front row when changing the tube. Also, the first
Even when the bobbin pitch P of the roving frame l on the left side of the figure is smaller than the full bobbin diameter, the tube change may be performed from the bottom to the top of FIG. 1, as in the embodiment described above.

In the above embodiment, one bobbin transfer device 17 is installed in one roving frame.
Although we have explained the case in which the bobbin transfer device 17 is installed in two roving frames 1.
It is also possible to place the bobbin transfer device 17 in the center of the bobbin transfer device 1 and share it with two opposing rowing machines.In this way, the equipment cost and installation area of the bobbin transfer device 17 can be halved. In particular, it is easy to install in existing factories where installation space is limited. Further, in the embodiment described above, a transfer device 68 and a bobbin lifting device 69 are provided at one end side of the bobbin transfer device 17.
is installed, and the roving bobbin is transferred to the aerial roving bobbin conveying device 7.
It was automatically transported by 1.

The thread bobbin can also be transported by a transport vehicle or the like that runs on the floor.

Furthermore, in conventional roving frames, the number of spindles is often set to one quarter of the number of spindles in the next process spinning frame, that is, less than the number of bobbins for one row of creels. If one full bobbin is fed to the creel of a spinning machine by automatic conveyance, the number of full bobbins will be insufficient, resulting in empty bobbins when the spinning machine automatically changes the spinning machine afterwards, and conversely,
When empty bobbins are automatically conveyed from the spinning frame side to the roving frame side, since the number of empty bobbins is large, the empty bobbins remain on the conveyance means, which causes a problem in the automatic conveyance of full bobbins that is carried out later. However, the bobbin transfer device according to the present invention can carry out unloading of full bobbins and loading of empty bobbins independently from the tube change of the tube changing machine, so the number of beds on the bed conveyor of the bobbin transfer device can be determined in advance from the roving frame. If the number of spindles is set to be larger than the number of spindles, the number of full bobbins and empty bobbins can be adjusted on this peg conveyor, especially when automatically transporting roving bobbins and automatically changing threads in an existing factory. This is extremely convenient.

Further, in the embodiment, the pipe switching arm 5 equipped on the pipe switching machine 34
The longitudinal movement devices 66 such as 8A and 58B are composed of a cylinder, a rack bar, a binion, etc., and as shown in FIG. A screw 63C having a right-handed screw and a left-handed screw is fitted into the center of the
The screw 63G may be connected to the geared motor 5A via gears 64A and 64B to form a longitudinal movement device 66A. In addition, 73 is a switch dog, and 74.75 is a limit switch that detects the forward end and backward end of the slide bracket 57C. Further, in the embodiment, on the lower surface of the pipe switching arms 58A, 58B.

The lower bobbin holder 61 is attached to hold the full bobbin 8 and the empty bobbin 5 in two places, upper and lower, but as described above, magnets are attached to the bifurcated portions 58a of the tube change arms 58A and 58B, and A full bobbin 8 and an empty bobbin 5 are suspended by the adhesion force of a magnet with an iron plate attached to the lower surface of the flange 5a of the bobbin.
It is also possible to hold the bobbin vertically and omit the bobbin lower holder 61 of the above embodiment. Furthermore, the above-mentioned pipe switching arm 58A
, 58B may be provided with a pair of gripping claws that can be opened and closed at the tip thereof, and the full bobbin 8 and the empty bobbin 5 may be gripped by the gripping claws.

Next, another embodiment of the pipe changer will be explained with reference to the drawings shown in FIGS. 17 and 18. The same parts as the pipe changer 34 of the previous embodiment are designated by the same reference numerals in the drawings. Detailed explanation will be omitted. This pipe changer 34A has a gate-shaped (or U-shaped) bracket on the top surface of a trolley 36A running on a work passage 9, with an opening facing in the width direction of the trolley 36A (left-right direction in FIG. 18). 44A is fixed to the vertical fitting hole 44a provided in the center of the bracket 44A,
A gear 45A is fitted into the gear 45A, and a rack bar 46A of a small deceleration motor 48A (manufactured by Orient Motor, trade name: linear head) with a brake is incorporated into the gear 45A. A meshed pivoting device 50A is disposed on the bearing 44A. 43A is a spline shaft fitted into a spline hole 45a formed in the center of the gear 45A of this turning device 50A, and a small reduction motor with a brake similar to 48A of the turning device 50A is attached to the upper end of this spline shaft 43A. An elevating device 55A using a small deceleration motor (trade name: Linear Head) is connected, and the spline shaft 43A and a pipe changing head main body 54A, which will be described later, are moved up and down with a predetermined stroke.

Further, a rotating arm 51 is provided at the lower end of this spline shaft 43A.
A is fixed, and a tube changing head main body 54A that protrudes in the width direction of the trolley 36A (horizontal direction in FIG. 18) is fixed to the lower surface of the swing arm 51A.
The rotating device 50A, the spline shaft 43A, and the rotating arm 5
1A to alternately rotate 180 degrees at the position shown in FIG. 18. On the lower side of this tube change head main body 54A, there is a
Two guide rods 56 are arranged in parallel with an appropriate distance between them, and a pair of left and right slide brackets 57C157D are slidably inserted on both sides of the two guide rods 56 in the longitudinal direction. Slide bracket 57G, 5
A plurality of pipe changing arms 58A and 58B (in the illustrated example, four on one side) are fixed to the outer surface of the tube 7D, with two types of pipe changing arms 58A and 58B, which are long and short, similar to those in the previous embodiment. 61 is each pipe switching arm 58A, 58B
This is the bobbin lower holder attached to the holder. Further, a longitudinal movement device 66A similar to the longitudinal movement device 66A shown in FIG. They are made to approach and move away from each other in the left and right directions in Figure 18.

Two limit switches are attached to each of the above three devices, and the devices are positioned at their respective stop positions via the limit switches. Also in the pipe switching machine 34A configured in this way, the pipe switching machine 34 of the above embodiment
It operates in the same way as , but the explanation of its operation will be omitted to avoid duplication.

Effects As described above, the present invention provides a working path of an appropriate width in front of the frame of a roving frame, and a bobbin transfer device such as a peg conveyor that circulates in the longitudinal direction of the machine frame is installed along the front side of the working path. A mobile tube changer is installed at the end of the roving frame, and the tube changer has tube change arms for multiple bobbins corresponding to the full bobbins on the roving frame and the empty bobbins on the bobbin transfer device, respectively. The left and right tube changing arms are equipped with a forward and backward movement device that moves them closer to each other and away from each other, an elevating device that moves them up and down in the forward position, and a turning device that rotates them 180 degrees in the backward position. , the tube changer is intermittently run from one end of the working path to the other end, and after the tube is full, a full bobbin on the bobbin rail of the roving machine that has descended to the tube change position and a bobbin prepared in advance on the bobbin transfer device are Take out multiple empty bobbins at the same time using the left and right tube changer, rotate the full and empty bobbins 180 degrees on the tube changer, and switch the positions of both bobbins to opposite sides. Since the pipe changing machine is now easier and smaller than conventional pipe changing machines, there is no need to link the bobbin transfer device with the pipe changing machine when changing pipes, and the pipe changing machine is easier and smaller than conventional pipe changing machines. Full and empty bobbins can be exchanged simultaneously by simply operating the machine independently, greatly reducing tube change time. Furthermore, since the tube changer has no directionality, the tube changer can be used in common with the oppositely installed roving frame without having to be reversed.

° Furthermore, even if the bobbin transfer device can be used for full bobbins and empty bobbins, and even if full bobbins and empty bobbins are placed on the bobbin transfer device,
You can freely wind the end of the braided yarn around the empty bobbin, repair work when the braided yarn breaks, etc. On the other hand, since the bobbin transfer device can carry out the full bobbin and (7) carry it in at any convenient time within the roving machine zero tube change cycle, it is easy to automatically transport one thread bobbin. Become. Furthermore,
This also makes it easier to manually replace pipes when a pipe replacement machine breaks down.

In addition, since the bobbin transfer device is disposed in front of the working path on the front of the machine, troubles with the bobbin transfer device due to the accumulation of fluff, etc. can be eliminated. Furthermore, by using a bobbin transfer device, since two bobbin transfer devices are installed opposite each other, the device has many excellent features such as the equipment cost and installation area being halved.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 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, and Fig. i5 is a tube FIG. 6 is a plan view of the pipe changer; FIG. 6 is a vertical sectional view of the pipe changer; FIG. The figure is a plan view showing the rotating device of the tube changer, Figure 9 is a partially enlarged view showing the holding state of a full bobbin, Figure 10 is a partially enlarged view of the tube change arm, and Figure 11 is a portion of the bobbin lower holder. An enlarged plan view, FIG. 12 is a side view of FIG. 11, FIG. 13 is a front view showing the roving bobbin transfer device and bobbin lifting device, etc., FIG. 14 is an explanatory diagram of the operation of the tube changer, and FIG. 16 is a longitudinal sectional view of FIG. 15, and FIG. 17 is a longitudinal sectional view of another embodiment of the pipe switching device. FIG. 18 is a plan view of another embodiment. DESCRIPTION OF SYMBOLS 1... Rover, 9... Working path, 17... Bobbin transfer device, 25... Peg conveyor, 34.3
4A...Pipe changing machine, 50.50A...Swivel device, 55
．． 55＾...Ascending Nα35 Descending device, 58A, 58B...Tube change arm Patent applicant Howa Kogyo Co., Ltd. Figure 5 @ Figure 6 Figure 7 Figure 11 6 4 (J @ Figure 8 Iris 415 jl) Circumference 14 No. 9 Figure 10 @ 11 Figure Chiku 12 Figure 8B18 Figure 17rl! 1

Claims (1)

[Claims] 1. A working path of an appropriate width is provided in front of the roving frame, and a bobbin transfer device such as a peg conveyor that circulates in the longitudinal direction of the roving frame is installed in front of the cow working path. A movable tube changer is installed on the end side of the stand, and the tube changer has multiple tube change arms corresponding to the full bobbin on the rover and the empty bobbin on the bobbin transfer device, respectively, and the left and right tube change arms. Equipped with a forward and backward movement device that moves the roving machines toward and away from each other, a lifting device that moves them up and down in the forward position, and a turning device that turns them 180 degrees in the backward position, when the roving machine is full, the pipe changing machine can be used for the above-mentioned work. The left and right tubes are moved intermittently from one end of the passage to the other, and the full bobbin on the bobbin rail of the roving machine, which has descended to the tube changing position after the tube is full, and the empty bobbin prepared in advance on the bobbin transfer device are transferred to the left and right tubes.
Multiple bobbins are taken out at the same time using the switching arm, and the full and empty bobbins after being taken out are turned 180 degrees on the switching machine, and the positions of both bobbins are exchanged to the opposite side to exchange multiple bobbins at the same time. A tube changing device for a rover frame, characterized in that it is configured to do so.