JPH02259125A - Yarn exchanging device of double twister - Google Patents

Abstract

PURPOSE:To simply exchange yarn by equipping a chuck of operating arm to exchange yarn and an expanding and contracting arm with members to transfer a snail wire and a drop wire to a position not to hinder yarn exchange, respectively. CONSTITUTION:In a double twister wherein a frame at a position opposed to a spindle is equipped with a yarn exchanging means having an operation arm 54 to attach and detach a yarn package from the spindle. A chuck 113 of the operation arm 54 and an expanding and contracting arm 129 are provided, respectively, at a pusher 121 and a pressing part 130, both of which transfer a snail wire 7 and a drop wire 8 being engaged with yarn connecting to the yarn package (attached to the spindle) from the yarn package to a position not to hinder exchange during exchange of the yarn package.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn feeding exchange device having yarn feeding changing means for exchanging yarn feeding packages of a double twisting machine.

[Prior art 1] In general, a double twisting machine applies double twist to a paper tube supported by a cradle arm by passing the yarn pulled out from a yarn supply package supported by a spindle through its shaft hole. It is adapted to be rolled up and rolled up to form a package. If the paper tube winds up all the yarn in the yarn supply package and becomes a winding package for the groover, replace the empty yarn supply package with the yarn supply package for the groover (yarn supply exchange), and unwind the yarn from that yarn supply package. Pull out the end (pull out), thread the thread through the shaft hole), remove the groove winding package from the cradle arm, support a new paper tube on the cradle arm (dolphing), and thread it into the paper tube. The end of the yarn that is drawn out from the yarn supply package must be fixed (threaded).

[Problems to be Solved by the Invention] Conventionally, these operations (from yarn feeding exchange to yarn threading) have been performed exclusively manually, which is time-consuming.

However, in today's world, where the frequency of operations such as doffing and supplying and replacing yarns has increased due to high-mix, low-volume production, automation of the above-mentioned operations has become an issue in order to reduce labor and improve productivity.

Therefore, the present applicant has been considering various things in order to develop a new processing robot 1 to automatically perform the above-mentioned tasks.6 In particular,
Above the spindle, there are a Snell wire that guides the yarn from the yarn supply package and a drop wire that detects the presence or absence of yarn. It is desirable to have a function for retracting it to a position where it does not get in the way. In other words, it is necessary to have a simple mechanism that can be applied to a processing robot.

In view of the above-mentioned circumstances, the present invention has been devised to provide a yarn feeding and changing device that is compact and can easily control the Snell wire and drop wire.

[Means for Solving the Problems] The present invention provides a main body frame installed opposite to the spindle of a double twisting machine, which has an operating arm for inserting and removing a yarn supply package into and from the spindle. Yarn exchange means is provided, and the operating arm is provided with an engaging member for moving the Snell wire and drop wire that engage the yarn of the inserted yarn supply package to a position where they are separated from the yarn supply package during the exchange process. It is.

[Function] The yarn feeding exchange means exchanges the yarn feeding package of the slotter with an empty yarn feeding package by operating the operating arm.

The engaging member moves the Snell wire and the drop wire to a position where they do not intersect with the yarn feeding package being replaced in accordance with the operation of the operating arm.

[Example] Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of a yarn feeding and changing device for a double yarn twisting machine according to the present invention, and shows a state in which it is installed in a double yarn twisting machine.

First, the configuration of this double twisting machine will be explained.

This double yarn twisting machine 1 consists of a large number of units 1-2 arranged in parallel, and each unit 2 has a yarn feeding package PI'@- vertically supported spin 1<3 on the lower side and a winding package on the upper side. It is equipped with a cradle arm 4 that horizontally supports the paper tube B of P2, and the yarn Y pulled out from the yarn feeding package P1 is passed through its shaft hole 5.
The paper is guided upward while being double-twisted, and wound onto a paper tube B which is rotationally driven by a rotating drum 6 to form a wound package P2.

Above the yarn feeding package P1, there is a Snell wire 7 for guiding the yarn, and a drop wire 8 for detecting the presence or absence of the yarn Y.
and is provided. Further above, a yarn oil roller 9 and a feed roller o for supplying the yarn Y to the winding package P2 are arranged in this order.

As shown in FIG. 11, the spindle 3 is integrally provided with a rotating disk 12 having a yarn storage section 11 around which the yarn Y is temporarily wound. A stationary cylindrical body 13 accommodating the yarn supply package P1 is rotatably supported via a bearing 14. The stationary cylindrical body 13 has magnets 1 to 1 provided at the bottom.
15 and a magnet 17 provided on a fixing ring 16 surrounding the spindle 3. The attraction action between the spindle 15 and a magnet 17 provided on a fixing ring 16 surrounding the magnet 15 keeps the spindle 3 in a stationary state regardless of its rotation.

A yarn supply package P is inserted into the boss portion 18 protruding from the bottom of the stationary cylinder 13, and the yarn Y pulled out from the yarn waste is inserted into the yarn supply package at the upper end of this yarn supply paragauge P1. A tensor cap 20 having a center hole 19 guided to the shaft hole 5 of P1 is attached.

Yarn guide holes 21 are formed in the radial direction in the yarn storage section 11 of the rotating disk 12, and the spindle 3 has a jet hole 22 that jets compressed air into the yarn guide hole 21, and the ejector effect of the jet flow causes the yarn to be A suction hole 23 is formed to suck the end Y from the shaft hole 5 into the thread guide hole 21. The yarn end Y ejected from the yarn guide hole 21 by compressed air hits the inclined inner surface of the fixing ring 16 and is blown up between the balloon control tube 24 fixed to the fixing ring 16 and the stationary tube body 13. ing. During threading, an air flow for threading is thus formed in the three parts of the spindle.

As shown in Figure 1, there is a petal 2 at the bottom of unit 2.
When the pedal 25 is depressed lightly, the spindle 3 is braked and stopped, and when the pedal is depressed deeply, compressed air is supplied to the nozzle 22. A pressurized air supply valve 26 for supplying compressed air to an outlet means, etc., which will be described later, is provided at the end of the petal 25.

The cradle arm 4 is pivotably supported so as to be able to move up and down in order to bring the winding package P2 into contact with and away from the rotating drum 6, and the cradle arm 1 has a cylinder 27 for pulling it to the doffing position. are connected.

The slots 1 to 28 that house a plurality of paper tubes B are attached to the bottom of the cradle arm 4, and the stocker 28
The box has a bottom plate 29 which is tilted downward in the front and can be opened and closed from which the paper tube B can be taken out.

As shown in FIGS. 1 and 2, the Snell wire 7 is arranged so that it can escape to the rear when replacing the yarn feeding package P1.
The proximal end side is horizontally rotatably supported via a bracket 30, and a return lever 31 is formed at the end thereof.

As shown in FIGS. 2 and 3, the base end of the drop wire 8 is connected to a horizontal shaft 3 disposed behind the yarn supply package P1.
2, and its tip rests against the yarn Y between the Snell wire 7 and the yarn kite roller 9. When the yarn supply package P1 becomes empty or the yarn breaks, it is placed on the yarn supply package P1. It is designed to fall under its own weight.

A cam 34 is attached to the base end of the drop wire 8 to open and close the operation valve 33 of the cradle arm cylinder 27. When the drop wire 8 falls, the operation valve 33 is opened and the cradle arm 4 is moved by the cylinder 27. It can be pulled up into the doffing position. Furthermore, a rotating lever 35 for rotating the drop wire 8 upward is provided protruding from the base end, and the tip is pushed up above the position Df where the drop wire 8 rests against the thread Y. A magnet 36 is provided to attract and hold the drop wire 8.

A base end of a display lever 37 extending horizontally forward is pivotally supported near the top 1-36, and a drop wire attached to the top 1-36 is attached to the base end of the display lever 37. Push-down lever 38 for pushing down the tip of 8
is installed protrudingly. That is, when the display lever 37 is returned to the horizontal position as shown by the imaginary line, the drop wire 8 is pulled away from the magnet 36 by the push-down lever 38 and falls.

In addition, as shown in FIG. 2, a guide plate 39 is attached to the thread kite roller 9 to guide the thread to the rear side.

Further, as shown in FIG. 1, behind the rotating drum 6 is a conveyor 40 for carrying out the doffed winding package P2, and in front of the yarn feeding package P1 is a tray for conveying the yarn feeding package P1 of the trencher. Yarn feeding conveyors 41 for transporting the yarn on F are arranged along the units 2, respectively.

As shown in FIG.
42 and a guide frame 43 for guiding the tray T. Yarn supply package P is included in the second part of 1~lay 1゛.
A peg Q for inserting and supporting 1 is provided protrudingly.

Next, the yarn feeding and changing device 51 of the present invention will be explained.

As shown in FIG. 1, the yarn feeding and changing device 51 is provided on a traveling carriage 52'' which is formed to run along the unit 2, and is provided at the lower part of the main body frame 53, facing the spindle 3. It is located like this.

This yarn feeding exchange device 51 removes the empty yarn feeding package P1 from the spindle 3, and removes the empty yarn feeding package P1 from the trencher.
The yarn feeding and changing means 55 includes an operating arm 54 for inserting and attaching the yarn. In the present embodiment, as shown in FIG. 4, the yarn feed exchange means 55 operates in conjunction with the yarn feed exchange means 55, and a feeder means 56 for pulling out the yarn end Y from the yarn feed package P; As shown in Figure 12, the yarn end Y is transferred to the yarn feeding package P by air flow.
A thread threading means 57 for inserting the thread into the shaft hole 5 of 1 is also provided.

As shown in FIG. 1, wheels 58 and 59 are provided at the first end and the lower end of the traveling trolley 52, respectively, and the unit 2
It is movably supported by rails 60 and 61 attached to the top and bottom of the front part. Further, a travel drive device 62 is connected to the five lower wheels.

A sensor 63 for detecting the display lever 37 is provided on the traveling trolley 52.
is attached, and when the sensor 63 detects the horizontal state of the display lever 37 at the same time, the traveling drive device 62 is decelerated and stopped, and the traveling carriage 52 is positioned and stopped in front of the unit 2. On the other hand, at the bottom of the traveling trolley 52, there is a pressure air supply valve 2 provided in each unit 2.
A pressure air introduction section (not shown) which is detachably connected to the pedal 6 and a pedal lever 64 for depressing the pedal 25 are provided, and these are operated by a cam type drive mechanism (not shown). Further, the pressurized air introduced from the pressurized air introducing portion is used as a driving source for various cylinders provided on the traveling truck 52.

Furthermore, as shown in FIGS. 4, 7, and 8, the traveling cart 52 includes a yarn feeding package P1 on the yarn feeding conveyor 41.
A sensor 65 detects the tray T by the sensor 65 and its detection signal.
A cylinder 66 is installed to stop the engine. At the tip of the piston rod 67 of the cylinder 66, a 7-shaped locking piece 68 is attached that locks the base end of the peg Q of the one-way T from the side. Further, a proximity sensor 69 is attached to the cylinder 66 to detect when the piston rod 67 extends a predetermined stroke, and the yarn feeding conveyor 41 is stopped in response to the detection signal. In addition,
When handling many types of yarn feeding bobbins, a tray T is used for each type.
If the diameter of the base end of the peg Q is changed, the stroke of the piston rod 67 when it is locked by the locking piece 68 will be different accordingly. Alternatively, the yarn packages P1 may be sorted.

Next, the extraction means 56 will be explained.

As shown in FIG. 4, the main body frame 53 of the traveling trolley 52
is formed in a U-shape from the front, and has a pick-up peg 7 on its bottom upper plate 70 for temporarily placing the yarn feeding package P stopped on the yarn feeding conveyor 41 in order to pull it out.
1 is formed.

By providing the lead-out peg 71 on the traveling carriage 52 in this way, it is not necessary to provide a peg for temporary storage in each unit 2, and the lead-out process can be performed while the yarn feeding package P is being temporarily placed, improving processing efficiency. It has the advantage of rising.

The feed peg 71, the peg Q of the tray T stopped on the yarn feeding conveyor 41, and the spindle 34 are connected to the traveling carriage 52.
The vehicle is placed on the same line perpendicular to the direction of travel. As shown in FIG. 7, the lead peg 71 has a bearing 7 around its axis.
It is rotatably supported via 2. As shown in FIG.
It is designed to be rotationally driven by a motor 76 via a belt 7374 and a front end belt 75.

Further, the bottom upper plate 70 is provided with a suction arm 77 for feeding out the yarn end from the yarn supply package P1 inserted into the feeding peg 71, and a yarn support section 78 for supporting the fed yarn. ing.

As shown in FIGS. 4 and 8, suction arm 77
is formed in an arc shape so as not to interfere with the support frame 79 of the yarn support section 78, and the yarn supply package P is attached to the tip end thereof.
A suction mouth 80 is attached to the upper end of the paper tube B for suctioning and feeding out the punch-wound yarn end Y. The base end of the suction arm 77 is rotatably connected to the upper side surface of a suction cylinder 82 which is rotatably supported by the bottom plate 70 via a bearing 81, and the lower end of the suction cylinder 82. The part is traveling trolley 5
It is connected to a suction source (blower, not shown) mounted on 2.

A receiving arm 83 formed in an arc shape along the upper part of the suction arm 77 is fixed to the upper end of the suction cylinder 82, and a tensor cap 20 is attached to the tip of the receiving arm 83.
84 or mounting cj that removably holds the
It is being

At the base end of the suction arm 77, there is an L1 peg 71.
” In order to move the Zakujo mouse 80 away from the upper end of the paper tube B of the second yarn feeding pancage P1, the Zakujo arm 77
A spring 85 that biases -1 (=1) is connected to the receiving arm 83 via a lever 86.The receiving arm 83 has a pressing cylinder for pushing down the Zakujoon arm 77 against the spring force. 87 is installed.

Eight rotating cylinders are connected to the lower part of the suction cylinder 82 via levers 88, and the suction arm 77 is moved from the extended position where the suction mouth 80 is located on one side of the exit peg 71 to the side. It is possible to swivel to a standby position where the robot is moved away from the vehicle.

The thread support section 78 is formed of a thread kite piece 91 with an upwardly directed thread groove 90, and is supported on the side surface of the support frame 79 via an elevating frame 92 so as to be freely movable up and down. This elevating frame 92 is connected to an elevating cylinder 93 that is attached within seven support frames. String kite piece 9
A thread holder (not shown) is attached to the thread groove 90 of No. 1 to support the thread once entered so as not to escape. As shown by the dotted line in FIG. 4, the yarn kite piece 91 is pulled out and connected to the yarn feeding package P1 and the suction mouse 80 in the standby position.
The thread Y straddled between the threads is caught in the thread groove 90 by its vertical movement, and the holding height of the thread can be changed.

A pick-up sensor 94 for detecting the presence or absence of the thread is arranged in the thread path of the thread Y, which is passed between the thread kite piece 91 located at the lowest end and the Zakujon mouse 80 in the standby position. It detects whether or not the lead-out was successful, and as described later, if it is successful, it proceeds to the next process such as threading, and if it is not, threading is not performed, the yarn feed is replaced, and the operation ends. is set to.

A cutter 95 for cutting the thread in the thread groove 90 is arranged near the thread kite piece 91. This cutter 95 consists of a fixed blade 96 and a movable blade 97, and is driven by either the movable blade 97 or a cylinder 98.

Next, the yarn feeding exchange means 55 will be explained.

As shown in FIG. 4, an operating arm 54 for performing yarn feeding exchange, etc. is housed on the left inner wall of the main body frame 53 so as to be able to move up and down and up and down (=J(1). , a screw rod 99 is provided upright and rotatable, and a kite rod 100 is provided upright.

A lifting motor 101 for rotationally driving the screw rod 99 is connected to the screw rod 99 via a pulley 102103 and an endless belt 104. The screw rod 99 and the kite rod 100 include the screw rod 9
An elevating block 105 that is moved up and down by the rotation of 9 is supported. This lifting block 105 has a shaft 106 projecting from the rear left side of the operating arm 54, which has a bearing]0.
It is rotatably supported via 7. That is, the operation arm 54 is supported by the lifting block 105 via this shaft 106, so that it can be raised and lowered.

A vertical slit 108 is formed in the left inner wall to allow the bearing 107 to move up and down, and a stopper 109 is attached to the bearing 107 to lock the rear upper surface of the operating arm 54 and horizontally support it. ing.

Further, the tip of the operating arm 54 is positioned above the yarn feeding package P1 on the spindle 3 when it is in a horizontal state, and as shown in FIG.
A remaining thread detection sensor 110 is attached to detect the presence or absence of remaining thread.

In addition, the front lower surface of the operating arm 54, which moves downward in a horizontal state, is fixed to the left inner wall of the main body frame 53, so that the operating arm 54 can be stored upright on the side of the traveling carriage 53.
A collar 111 is attached so as to be freely protrusive and retractable by a drive mechanism (not shown). As a result, the operating arm 54 is housed with its tip facing forward and diagonally upward, so that it does not interfere with the unit 2 during travel.

As shown in FIGS. 5 and 6, the operating arm 54 has a long box-shaped frame 112.
A chuck 113 for gripping the yarn feeding parameter P1 and the tensor cap 20 is provided on one side of the yarn feeder 2 so as to be slidable along the longitudinal direction.

In order to slide the chuck 113, a screw rod 115 having a motor 114 at one end is formed in the frame 112 along the longitudinal direction. A moving block 116 that is moved by the rotation of the screw rod 115 is screwed into the screw rod 115.
13 is supported on its side by this moving block 116.

A moving block 116 is attached to the side wall of the frame 112.
A horizontal rib 1 117 is formed to slidably guide the horizontal sleeve 1 .

The chuck 113 has two arm pieces 119 and 120 that are opened and closed by a cylinder 118.

Among these arm pieces 119, 120, the frame 112
A button 121, which is an engagement member for letting the Snell wire 7 escape, is formed on one of the arm pieces 119, which extends from the tip side.

That is, as shown by the imaginary line in Fig. 2, Chatka 1
When the button 13 is slid, the button 121 presses the tip end side of the Snell wire 7.

Further, the tip of the other arm piece 120 extends diagonally outward in order to catch the thread. These two arm pieces 11
Chuck pieces 122 and 123, which are shaped like halves of a cylindrical body, are integrally suspended from the lower surfaces of the cylindrical parts 9 and 120. Both chuck pieces 122 and 123 grip the tensor cap 20 on the inside, and press and hold the inner surface of the shaft hole of the yarn supply package P1 on the outside. In this way, since the single chuck 113 holds the yarn supply package P1 and grips the tensor cap 20, the number of parts is reduced and the apparatus becomes compact.

Therefore, when changing the yarn feed, as shown in FIG.
22, 123, slide of the chuck 113, and raising and lowering the operating arm 54, the yarn feeding paragauge P1 on the peg Q of the tray T is first moved onto the outlet peg 71 (■), and then the empty yarn feeding package of the spindle 3'' is moved. P1 is moved onto the peg Q of the tray T (■), and then the fed yarn package P1 that has been picked out is transferred from the pick-up peg 71 onto the spindle 3 (■), thereby completing the process.

Further, as shown in FIG. 6, a thread holding ring 124 that is aligned with the axes of the chuck pieces 122 and 123 is attached between both arm pieces 119120, and the upper side of the thread holding ring 124 is , a nozzle 125 is attached that injects compressed air toward the center of the thread holding ring 124. During threading, the nozzle 125 injects compressed air to insert the yarn @Y into the shaft hole 5 in cooperation with the suction air flow acting on the shaft hole 5 of the yarn supply package P1. There is.

Also, on the operating arm 54, there is a suction pipe 126 for suctioning and holding the yarn end Y that has been threaded and blown up between the balloon control cylinder 24 and the stationary cylinder 13, or a yarn feeding parameter of the spindle 31. It is installed above P1.

A suction slit 127 is formed in this suction pipe 126 at a predetermined length from the tip.

A cylinder 128 is connected to the tip side of the operating arm 54.
A telescoping arm 129 is formed which can be extended and retracted forward by the operation of. A suppressing portion 130, which is another engaging member for separating the drop wire 8 from the yarn supply package P, is formed at the tip of the extendable arm 129. That is, as shown by the imaginary line in FIG.
When the drop wire 9 is extended, the drop wire 8 is expanded upward by pushing and moving the rotary lever 35 of the drop wire 8. Moreover, this pushing part 130 pushes the push-down lever 38 of the display lever 37 and the return lever 31 of the Snell wire 7.

The telescopic arm 129 also includes the suction pipe 12.
A thread kite piece 131 is provided laterally to guide the thread Y stretched between the yarn supplying package P1 and the thread feeding package P1 so as to be hung on the Snell wire 7, the thread guide roller 9, etc.

In addition, as shown in FIG. 3, a pusher 132 for moving the display lever 37 to the horizontal position and a link member 133 for operating the pusher are provided on the left inner wall of the main body frame 53. It is provided. That is, when all the yarn feeding exchanges are completed, the display lever 37 is returned to the horizontal position, and the drop wire 8 is returned to the position where it engages with the yarn Y.

Next, the threading means 57 will be explained.

The threading means 57 includes a nostle 125 provided on the chuck 113 of the operating arm 511 described above and the operating arm 5.
It is mainly composed of a suction pipe 126 provided at the spindle 4, and threads the put-out yarn along with the threading air flow generated at the spindle 3 section. In this case, as shown in FIG. 10, the thread end Y that has been taken out is in a state where it is sucked into the Zakujo mouth 80 via the hooker 113 of the operating arm 571 and the thread kite piece 91 of the thread support section 78.

Therefore, in this state, when the chatker 113 transfers the tensor cap 20 received from the cap jacker 84 onto the yarn supply package P and attaches it to the shaft hole 5, the petal lever 64 deeply steps on the petal 25 of the unit 2. Then, a winding air flow is generated in the spindle 3 section, and compressed air is injected from the nostle 125 of the chatker 113, and at the same time, the cutter 95 of the thread support section 78 cuts the thread Y, as shown in FIG. Then, the cut yarn is threaded through the shaft hole 5 by the action of the air flow and suctioned and held by the suction pipe 126, so that threading is completed.

Next, the operation of this embodiment will be explained.

The traveling trolley 52 travels along the unins 1 and 2, and the sensor 6
When unit 3 detects the display lever 37 in the horizontal state, it slows down and stops in front of units 2) to 2, and indexes in.

Then, the operation arm 54 starts to move downward by 1, the petal lever 6/' shallowly occupies the petal 25, stops the rotation of the spindle 3, and the pressurized air introduction part is connected to the pressurized air supply valve 26. Also, press the pressing part 130 of the telescoping arm 129 of the operating arm 54 or the push-down lever 38 of the display lever 37, lower the display lever 37, and detect the remaining yarn in the yarn feeding pancage P1 according to the remaining yarn detection sensor dates Nos. 1 and 10. Detects the presence or absence of thread. If there is yarn remaining, do not change the yarn feed,
The operating arm 54 is returned to the origin and placed in the retracted state, the index is out, and the traveling carriage 52 resumes running.

If there is no remaining yarn, a yarn feeding exchange operation is started.

When replacing the yarn supply, first, the telescoping arm 129 of the operating arm 54 moves the rotary lever 35 of the drop wire 8,
The button 12 of the arm piece 119 connects the Snell wire 7,
Push each to release it from above the yarn supply package P1 (second
(See Figure 3).

Further, the yarn feeding package detection sensor 65 detects the yarn feeding package P on the tray 1'' being transferred by the yarn feeding conveyor 41.
, as shown in FIG. 4, the cylinder rotor 6 is actuated to engage the locking piece 68 with the base end of the beg Q of the 1-lay T, thereby stopping the 1-lay ``. The carry-out conveyor 4J is also stopped by the proximity sensor 69 on the cylinder 66.

Then, the chucker 113 first grips the tensor cap 20 attached to the empty yarn package P1 of the spindle 3-E, and the cap chucker 84 of the receiving arm 83
Then the yarn feeding package P + on the lay T to 1
Grasp and move it to the [1 output peg 71 on the traveling trolley 52,
Next, the empty yarn package P1 on the spindle 3 is grasped and transferred onto the peg Q of the tray '2'. The receiving arm 83 is
When receiving the tensor cap 20, the turning cylinder 89
It is pivoted from the standby position to the delivery position, and then returned to the standby position after receiving.

When the yarn feeding package P1 is attached to the lead-out peg 71'', its lead-out is started. In this case, the X-axis arm 77 is pivoted to the 1" position, and the pressing cylinder 8
7, the suction mouse 80 is a yarn feeding package■)1
The upper end of the paper tube B is covered with the paper tube B.

As a result, the suction arm 77 suctions the yarn end Y punch-wound around one end of the paper tube B'' from the suction mouth 80 and returns to the standby position while holding it.

During this time, the yarn feeding package P1 is rotated by the motor 76 in the yarn pay-out direction via the feed peg 71, and the fed-out yarn end Y is stored in the suction arm 77 and the suction cylinder 82.

Next, the thread kite piece 91 of the thread support section 78 is moved up and down by the lifting cylinder 93, and the thread Y spanning between the thread supply package P and the suction mouth 80 is moved into the thread groove 90 of the thread guide piece 91. The yarn Y is caught via the yarn holding ring 124 and positioned at the pick-up sensor 94.

Then, the sensor 94 determines whether or not the lead-out has been successful based on the presence or absence of the yarn, and if it is successful, yarn feeding exchange and thread threading are sequentially performed. That is, first, the thread kite piece 91 is moved upward, and as shown in FIG. Catch it inside.

Next, the thread guide piece 91 is moved downward, and the thread guide piece 91 is moved downward.
3 grasps the yarn supply package P on the output peg 71 and transfers it onto the spindle 3, and further receives the tensor cap 20 from the cap chucker 84 of the receiving arm 83 which has turned to the output position, and transfers it to the paper tube of the yarn supply package P1. Attach it to the upper end of B (see Figures 10 and 11).

Thereafter, the pedal lever 64 depresses the pedal 25 deeply to generate an air flow for threading the spindle 3, and
Compressed air is ejected from the nozzle 125 of the chatter 113, and in this state, the cutter 95 of the yarn support section 78 operates to cut the yarn Y connected from the yarn supply package P to the suction mouth 80.
cut.

The yarn end Y of the cut yarn supply package P1 is connected to the nozzle 12.
The compressed airflow from 5 and the suction flow from the center hole 19 of the tensa cap ensure that the thread is sucked into one of the center holes, and threading into the shaft hole 5 is ensured as shown by the dotted line in FIG. be exposed. The threaded end Y is connected to the suction pipe 1
26 is held under suction.

When threading is completed, the pressing part 130 of the telescopic arm 129
Press the return lever 31 of the Snell wire 7 to return the Snell wire 7, and use the thread guide piece 131 to
The yarn Y between the yarn supply package P1 and the suction pipe 126 is sequentially wound around the Snell wire 7 and the yarn guide roller 9.

When this threading is completed, the operating arm 54 returns to its original position and enters the storage state.

Then, from the cradle arm 4, the winding package P of the trencher is
2 is removed and the empty paper tube B is attached, the pedal 25
is released from the shallowly depressed state, and the spindle 3 starts rotating. When the cradle arm 4 is pushed down by the cylinder 27, the paper tube B comes into contact with the rotating drum 6 and rotates, so that the yarn Y is wound around the paper tube B.

Then, the pressurized air introduction section is removed from the pressurized air supply valve 26,
The display lever 37 is pushed up by the push-up lever 132, the index is out, and the traveling carriage 52 resumes running. When the display lever 37 is pushed up, the drop wire 8 is moved to the magnet 3 by the push lever 38 at its base end.
6 and leans against the running yarn Y between the Snell wire 7 and the yarn kite roller 9 by its own weight.

If the feeding is not successful, just replace the yarn feed,
After returning the operating arm 54 to its origin, the display lever 37
is raised, the index is out, and the traveling trolley 52 resumes running.

In this case, since the yarn Y is not connected from the yarn feeding package P to the paper tube B, when the drop wire 8 is pulled away from the magnet 36 by pushing up the display lever 37, it will fall, the operation valve 33 will be opened, and the cradle will be placed. Arm 4
or be raised. Therefore, the unit 2 is detected again and the display lever 37 is lowered to detect the remaining yarn on the yarn feeding side, but since there is some remaining yarn, the yarn feeding is not replaced and the index is out, and the traveling cart 52 is Running will resume.

Therefore, the operator only has to manage the units 2 whose display lever 37 is lowered. Further, since the display lever 37 is lowered, the traveling carriage 52 will no longer stop at the position of the unit 2, thereby avoiding unnecessary operation.

In this way, since the button 121 as an engaging member and the pressing part 130 are provided on the chucking member 3 of the operating arm 5/1 for yarn feeding exchange and the telescopic arm 129, these operations cause the snell wire 7 and The drop wire 8 can be moved to a position where it does not get in the way of the yarn supply package [ ) 1. In other words, the yarn feeding exchange can be performed smoothly, the control can be simplified, and the entire device can be changed from one to
It can be done.

In addition, in this embodiment, the yarn feeding and changing device 51 includes, in addition to the yarn feeding and changing means 55, a [1 outputting means 56] and a threading means 5.
Although 7 and 7 are shown as (niii), the present invention can be applied even if there is a yarn feeding and changing device equipped with only a yarn feeding and changing means.

[Effects of the Invention] In summary, according to the present invention, the following excellent effects are achieved.

A yarn supply exchange means having an operation arm for inserting and removing a yarn supply package into and from the spindle is provided, and the operation arm is provided with a yarn supply exchange means for moving the Snell wire and the drop wire to a position separated from the yarn supply package during the exchange process. Since the engaging member is thrown, the Snell wire and drop wire can be easily controlled by operating the operating arm.
A new device is achieved.

[Brief explanation of drawings]

Fig. 1 shows a yarn feeding and changing device for a double twisting machine according to the present invention.
・A side view showing the embodiment; FIG. 2 is a plan view showing the related structure of the operating arm, the Snell wire, and the drop wire; FIG. 3 is a side view showing the related structure of the drop wire and the display lever; 4 is a plan view showing the yarn feeding exchange means and feeding means of FIG. 1, FIG. 5 is a plan view showing the operating arm thereof, FIG. 6 is a sectional view taken along the line VIvI in FIG. 5, Figure 7 is a 1117 view taken along the line ■-■ in Figure 4, Figure 8 is a sectional view taken along the line ■-■ in Figure 4, and Figure 9 is a sectional view taken along the line ■-■ in Figure 4. FIG. 10 is a plan view showing a state in which the chatka captures the yarn of the yarn supply package that has been introduced; FIG. 10 is a perspective view showing the state in which the chatka in FIG. 9 has moved the tenser camp onto the yarn supply i FIG. 11 is a side sectional view showing the state of threading. In the figure, 53 is a main body frame, 54 is an operating arm, 55 is a yarn feeding exchange means, 121 is an engaging member, and 1.
Reference numeral 30 indicates a pressing portion of a telescoping arm which is another holding member. Patent applicant Murata Machinery Co., Ltd. Agent Patent attorney Nobuo Kinutani

Claims (1)

[Claims] 1. A yarn feeding exchange means having an operating arm for inserting and removing a yarn feeding package into and out of the spindle is provided on the main body frame installed opposite to the spindle of the double twisting machine,
The operating arm is provided with an engaging member for moving the Snell wire and drop wire that engage with the yarn of the inserted yarn supply package to a position where they are separated from the yarn supply package during the exchange process. Yarn feed exchange device for double twisting machine.