JP2001192939A - Automatic machine for spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic machine designed to be movable by the rotation of each pinion engaged with each rack laid on a floor and ensured to be movable in a properly engaged condition between the pinion and the rack even without the need of frequent rack cleaning works by operators. SOLUTION: In this automatic machine, a plurality of rails 4 and racks 5 are laid so as to extend to cross the longitudinal direction of a roving frame at right angles; a doffer 3 is equipped with a plurality of trucks 6 movable along the rails, a bearing 16 is fixed onto the underside of each of the trucks 6, and a drive shaft 17 is supported via the bearings 16 among the respective trucks 6 in such a condition as to be penetrated through the respective trucks 6; one of the trucks 6 is mounted with a motor, whose driving force is transmitted via a rotary transmission mechanism to the drive shaft 17; each of pinions 19 engaged with the corresponding rack 5 is fixed onto the drive shaft 17 rotatably as a unit at a position corresponding to every other truck 6; and each of the trucks 6 is mounted with a magnet 34 at a position facing on each of the racks 5 and on the side of advancing the doffer 3 in its operation relative to the corresponding pinion 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic spinning machine, and more particularly, to a spinning machine that moves along a predetermined traveling path by rotating a pinion that meshes with a rack laid on the floor to perform a pipe change operation. It concerns an automatic machine.

[0002]

2. Description of the Related Art As a simultaneous pipe changer in a roving machine,
2. Description of the Related Art There is a device that includes pipe replacement arms arranged at the same interval as the bobbin pitch of a roving machine and the number of weights of the roving machine, and doffs all bobbins on the bobbin wheel of the roving machine all at once.

As this type of tube changing device, there is provided a bogie for moving a support frame for supporting a tube changing arm between a standby position and a working position (doffling position) close to the roving machine advanced from the position. There are things. The support frame extends almost the entire length along the length of the roving machine frame,
When placed in the working position, it is necessary to arrange each pipe replacement arm horizontally and at a position facing the bobbin wheel of the roving machine. In some cases, a rack and pinion mechanism is used so that the bogie moves without slipping and stops at a predetermined position. If the rack protrudes from the floor, it hinders the passage of workers, etc., so the rack is buried in the floor so that the upper side of the teeth is at substantially the same height as the floor. Further, since the supporting frame is long, a plurality of carts are required, and a plurality of racks and pinions are required.

[0004]

However, in the conventional apparatus, since the rack is buried in the floor surface, when foreign matter such as screws and small parts or fly wool is accumulated on the rack,
When the bogie moves, the pinion may bite a foreign object and lift up from the rack, causing the pinion to deviate from the set engagement position. That is, the position of a part of the plurality of carts is shifted from the position of the other carts. Since the frame to which the bogie is connected is long, the bogie can move even if the engagement position between the rack and the pinion is slightly shifted due to the bending of the frame. However, when the bogie is moved to the work position, the position in the front-rear direction is shifted from a predetermined position depending on the replacement arm, and a doffing error occurs. Also,
When the displacement of the engagement between the rack and the pinion increases, the load on the motor increases, the thermal relay of the motor operates, and the carriage cannot move. In these cases, a large number of workers need to lift the carriage to remove foreign matter and to perform a troublesome operation of returning the pinion to a normal meshing position with the rack.

Conventionally, the above-mentioned situation is prevented as much as possible by frequent cleaning of the rack by an operator. However, the cleaning operation is troublesome, and in a state where foreign matter is caught in the rack. It is not possible to completely prevent the pinion from passing through the location, and the above-described problem may occur.

In a spinning factory, there is an automatic spinning machine that moves along a machine stand of a spinning machine to perform a tube changing operation, a roving yarn changing operation, or a roving yarn splicing operation, in addition to the simultaneous pipe changing device. Also in these spinning machines, when a system in which a pinion meshing with a rack is driven to move is adopted, if a foreign matter or the like gets stuck in the rack, problems such as inability to move or a work error occur. In particular, when calculating the movement amount of the automatic machine from the reference position from the rotation speed of the pinion, if the meshing position between the rack and the pinion is shifted, the accurate movement amount (position) of the automatic machine cannot be recognized.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an automatic spinning machine which moves by rotation of a pinion meshing with a rack laid on a floor, and which is operated by an operator. An object of the present invention is to provide an automatic spinning machine capable of moving a pinion and a rack in a normal meshing state without frequently performing a cleaning operation.

[0008]

According to the first aspect of the present invention, there is provided an automatic spinning machine including a pinion meshing with a rack provided on a floor, and moving by rotating the pinion. And a suction removing unit is provided at a position facing the teeth of the rack.

According to the present invention, when a small object such as a screw dropped by an operator rides on the tooth portion of the rack, the small object is sucked and removed by the suction removing means. Therefore, the foreign matter is prevented from being caught between the pinion and the rack, and the pinion is prevented from being displaced from the engagement position set with respect to the rack.

According to a second aspect of the present invention, in the first aspect of the present invention, the suction and removal means is disposed at least on the forward side of the automatic machine with respect to the pinion during operation. Therefore, in the present invention, since the pinion moves on the rack after passing through the suction removing means when the automatic machine advances,
The pinion moves on a rack free of foreign matter. When retreating, the pinion moves on a rack where there is no foreign matter because the pinion returns to the path that has been cleaned during the forward movement.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the suction and removal means is a magnet. According to the present invention, the magnetic foreign matter existing on the rack is attracted by the magnet and moved so that the pinion is not bitten. The magnet may be a permanent magnet or an electromagnet.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the magnet is supported in a state in which a distance between the magnet and the rack can be changed. Therefore, according to the present invention, when the amount of the foreign substance made of the magnetic substance existing on the rack is large, the distance between the magnet and the rack is reduced when the magnet attracts the first foreign substance and then attracts (adsorbs) the next foreign substance. By spreading, many foreign substances are adsorbed without difficulty.

According to a fifth aspect of the present invention, in the third or fourth aspect, a compressed gas injection unit is provided in addition to the magnet. Therefore, in the present invention, light foreign matter on the rack is blown off by the compressed gas injected from the compressed gas injection unit. In addition, a heavy foreign substance made of a magnetic material is sucked and removed by a magnet. Therefore, it is possible to prevent fly waste that cannot be attracted by the magnet from accumulating on the rack and being repeatedly stepped on by the pinion, thereby preventing an increase in the amount of accumulation, thereby avoiding the occurrence of a problem that may interfere with the engagement between the pinion and the rack. You.

According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, the automatic spinning machine has a drive shaft mounted in parallel with a longitudinal direction of the roving machine. A plurality of fixed pinions rotate while meshing with a plurality of racks provided on the floor in parallel with each other, so that the pinions reciprocate in a direction orthogonal to the longitudinal direction of the roving machine, and move to a working position and a standby position. This is a moving simultaneous pipe changer.

Therefore, according to the present invention, the automatic machine reciprocates in the direction orthogonal to the longitudinal direction of the roving machine and moves to the working position and the standby position by the rotation of the plurality of pinions fixed to the drive shaft. Then, the operation of the suction and removal means or the operation of the compressed gas injection section according to any one of claims 1 to 5 is performed.

According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, there is provided a sensor for detecting floating of the pinion from the rack. Therefore, according to the present invention, it is possible to stop the automatic machine at the time when the pinion rises from the rack based on the detection signal of the sensor.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention is embodied as a simultaneous pipe changer which reciprocates in a direction perpendicular to the longitudinal direction of a roving machine and moves between a working position (replacement position) and a standby position. 1
The embodiment will be described with reference to FIGS.

As shown in FIG. 2, a tube changing device 3 as an automatic machine is provided in front of a roving machine 2 equipped with an upper support type flyer 1 (to the left in FIG. 2) so as to face the roving machine 2. ing. As shown in FIGS. 2, 4 and 6, a plurality of rails 4 and a plurality of racks 5 extend on the floor in front of the roving machine 2 in a direction orthogonal to the longitudinal direction of the roving machine 2. Is laid. The pipe replacement device 3 includes a plurality of trucks 6 movable along the rails 4, and each truck 6 is connected to two upper and lower connecting members 7,
By being connected by 8, it is configured to be integrally movable. For example, in this embodiment, nine carts 6 are provided, and five racks 5 are used. The lower connecting member 8 is formed in a channel shape and is also used as a duct for arranging a power supply line and a signal line (not shown). The same number of the rails 4 as the number of the trolleys 6 are provided, and the racks 5 are laid in close proximity to the rails 4 every other rail.

The rails 4 and the racks 5 are provided in pits 9 formed on the floor, and are fixed via bolts 10 to the upper surface of a base plate 11 whose height can be adjusted vertically. In the pit 9 where the rail 4 and the rack 5 are laid close to each other, padding is provided in a gap between the rail 4 and the rack 5 as shown in FIGS. Below the gap, an iron bar 12 is provided as a filling, and a sponge 13 is provided thereon. The base plate 11 has a rack 5 on the side opposite to the padding.
An L-shaped iron plate 14 whose upper end is at the same height as the floor surface in a state in which the iron plate 14 abuts is fixed. After the rails 4 and the racks 5 are fixed at their proper positions, the pits 9 are filled with mortar (not shown). Iron plate 14 is mortar rack 5
To prevent it from flowing over the teeth. Also,
The sponge 13 prevents foreign matter from entering between the rail 4 and the rack 5.

Each truck 6 is formed substantially symmetrically in the front-rear direction, and wheels 15 rolling on the rails 4 are rotatably mounted on both front and rear sides thereof. A bearing 16 is provided substantially at the center of the lower part of each carriage 6.
Is fixed, and a drive shaft 17 is horizontally supported between the carriages 6 via bearings 16 so as to penetrate the carriages 6. A motor 18 (shown only in FIG. 2) is mounted on one of the carts 6 (in this embodiment, the cart 6 disposed at the center), and the driving force of the motor 18 is transmitted by a rotation transmission mechanism (not shown). ) Is transmitted to the drive shaft 17. As the motor 18, an induction motor whose drive is controlled via an inverter is used. A pinion 19 meshing with the rack 5 is fixed to the drive shaft 17 at a position corresponding to every other carriage 6 so as to be integrally rotatable.

A rotary encoder 20 having a gear 20 a meshing with a pinion 19 is fixed to one carriage 6 (a carriage supporting one end of the drive shaft 17 in this embodiment) via a bracket 21. An increment type is used as the rotary encoder 20. The count value of the rotary encoder 20 is increased (added) when the carriage 6 moves forward, and decreased (subtracted) when the carriage 6 moves backward.
Up / down counter. The control device sets the state in which the switching device 3 is located at the standby position as a reference position, calculates the amount of movement from the reference position based on the output signal of the rotary encoder 20, and stops the switching device 3 at a predetermined stop position. Motor 18 is controlled via an inverter.

FIG. 1 is a partial side view of the lower part of the carriage 6 to which the rotary encoder 20 is fixed, as viewed from the side where the rotary encoder 20 is mounted. In this figure, the right side is the rear side of the carriage 6. As shown in FIG. 1, a sensor 22 for detecting a reference position is fixed to the carriage 6 via a mounting piece 23. A detected part 24 is provided at a predetermined position on the floor surface. A front overrun detection sensor 25 is attached to a truck 6 different from the truck 6 provided with the sensor 22.
And a sensor 26 for detecting a rear overrun. The front overrun detection sensor 25 is a bogie 6
The sensor 22 is provided at the same position as the sensor 22 in the front-rear direction, and the sensor 26 for detecting the rear overrun is provided behind the sensor 22. Detected portions 27 and 28 are provided at predetermined positions on the floor surface corresponding to the sensors 25 and 26, respectively. The detected part 27 for the sensor 25 is shown only in FIG. A proximity switch is used for each of the sensors 22, 25, and 26. As shown in FIG. 2, a mechanical stopper 4a for preventing the carriage 6 from overrun is provided at both ends of each rail 4.

Each truck 6 corresponding to the rack 5 includes:
Proximity switches 29a and 29b as sensors for detecting the lift of the carriage 6 from the rails 4 are mounted via brackets 30 on both front and rear sides. The proximity switches 29a and 29b output an ON signal when the carriage 6 is normally on the rail 4, and output an OFF signal when the carriage 6 rises above the rail 4 by a predetermined amount or more. The proximity switches 29a and 29b are connected to the pinion 19 from the rack 5.
It also plays a role as a sensor for detecting the rising of the surface.

The control device (not shown) resets the up / down counter of the rotary encoder 20 when the detection signal of the sensor 22 is input, and inputs the OFF signal of each of the sensors 25 and 26 or the proximity switches 29a and 29b. 18 and a brake (not shown) is operated. In addition, the control device controls each of the sensors 25 and 26 or the proximity switches 29a and 29.
When the detection signal b is input, a notification command is output to a not-shown notification means. For example, a siren, a buzzer, or a lamp is used as the notification means.

As shown in FIGS. 1 and 2, each truck 6 has a scraper 31 on both front and rear sides for removing foreign matter on the rail 4.
And a scraper 3 for removing fly waste and the like attached to the wheels 15.
2 are mounted via mounting pieces 33. The scrapers 31, 32 are made of a hard resin or a phosphor bronze metal plate.

Each carriage 6 corresponding to the rack 5 is provided with a magnet 34 as suction removing means at a position facing the rack 5. A permanent magnet is used as the magnet 34, and is disposed on the forward side (the side close to the roving machine 2) of the pipe replacement device 3 during operation with respect to the pinion 19. 3 and 7 (a),
As shown in (b), the magnet 34 is fixed above the rack 5 so as to be orthogonal to the rack 5.
, So that the distance from the rack 5 can be changed. Specifically, a support plate 36 to which a magnet 34 is fixed
The two bolts 3 are provided so as to be able to move vertically within a predetermined range through an idiot hole formed in the bracket 35.
7 and a coil spring 38 is interposed between the lower surface of the bracket 35 and the support plate 36. A nut 39 is screwed to the tip of the bolt 37. That is, the magnet 34 is supported such that the distance between the magnet 34 and the rack 5 can be changed and tilted.

As shown in FIGS. 4 and 5, bobbin wheels 41 are mounted on the bobbin rail 40 of the roving machine 2 in a staggered manner in two front and rear rows. A shaft 42 extending in parallel with the longitudinal direction of the roving machine 2 is supported via a bearing 43 between the upper portions of the frames 6 a of the carriages 6. Shaft 42
Two types of long and short tube replacement forks 44 and 45 are supported so as to be integrally rotatable at the same predetermined pitch P as that of the bobbin wheel 41. The shaft 42 is driven forward and reverse by a motor (not shown) via a speed reducer and a gear train.
4, 45 are moved to a standby position indicated by a solid line in FIG. 2 and a work position indicated by a chain line. The replacement forks 44 and 45 extend almost vertically upward in the standby position,
In the working position, it extends horizontally to the front (the side of the roving machine 2).

A balance weight 46 (shown only in FIG. 2) is provided between the frames 6a of the respective trolleys 6 at a position substantially at the same height as the connecting member 8 toward the rear side through a bracket (not shown) via a bracket (not shown). 42 and parallel to the drive shaft 17
It is supported laterally behind the vertical plane including the axis of.

At the tip of each of the tube replacement forks 44, 45, there are formed recesses 47a, 47b for bobbin suspension. Each of the recesses 47a and 47b is formed so as to be able to be fitted to a flange portion at the top of the bobbin, and a gap L between a pair of recesses 47a and 47b.
Is set to a value at which the full bobbin F and the empty bobbin E can be suspended at the same time in a state of being close to each other. Also, each recess 47a,
The pitch P1 in the front-rear direction of 47b is the bobbin wheel 41
Is set the same as the pitch P1 in the front-rear direction.

As shown in FIG. 2, a bobbin transfer device for transferring an empty bobbin E and a full bobbin F to and from the transfer device 3 via a bobbin transporter 48 is provided at a standby position of the transfer device 3. 4
9 are provided. The bobbin transfer device 49 raises and lowers a support arm 51 that supports the support rail 50 by a lifting mechanism 52. A bobbin transporter 48 having bobbin hangers 53 at a predetermined pitch is supported on the support rails 50 so as to be able to travel freely. The lifting mechanism 52 raises and lowers the support arm 51 using a ball screw. Then, the support arm 51 is raised and lowered, and the support rail 50 moves the bobbin between the bobbin hanger 53 and the refill forks 44, 45 at a bobbin transfer position where the bobbin can be transferred, and transports the bobbin transport body 48 to a spinning process or the like. It is adapted to be raised and lowered to an ascending position (standby position) connectable to a rail (not shown).

Next, the operation of the above-configured apparatus will be described. During operation of the roving machine 2, the tube changing device 3 is arranged at a standby position shown in FIG. 2 away from the roving machine 2, and the support rail 50 is arranged at a waiting position above the front side of the roving machine 2.
In a state where the refilling device 3 is located at the standby position, the refilling forks 44 and 45 are held at the standby position extending substantially vertically, as shown by the solid line in FIG. During the operation of the roving machine 2, the bobbin transport body 48 on which the empty bobbin E is suspended is carried into the support rail 50. Then, the pipe replacement operation is started based on the full signal of the roving machine 2.

At the time of exchanging work, first, exchanging forks 44, 45
Is arranged from the standby position to the work position, and in this state, the motor 18 is driven to rotate forward, and the bogie 6 is moved from the pinion 19 to the rack 5.
By rotating in a meshing state with each other, each pipe replacement fork 4
The concave portions 47b on the back side of the bobbin rails 4 and 45 are moved to the most advanced position corresponding to the flange portion of the full bobbin F on the bobbin rail 40.
Then, the bobbin rail 40 is lowered, and the full bobbin F is hung on each of the replacement forks 44 and 45. In the meantime, the support rail 50 is lowered to a height at which the lower end of the empty bobbin E suspended from the bobbin hanger 53 of the bobbin transport body 48 does not interfere with the tube replacement forks 44 and 45 by driving the lifting mechanism 52.

Then, the bogie 6 is moved backward with the full bobbin F suspended from the tube changing forks 44 and 45 by rotating the motor 18 in the reverse direction. Then, as shown in FIG. 8A, the motor 18 stops in a state where the tip of each of the tube replacement forks 44 and 45 is located slightly behind the corresponding empty bobbin E suspended from the bobbin hanger 53. Next, the elevating mechanism 52 is driven to lower the support rail 50, so that the flange of the empty bobbin E is located slightly above the tip of each of the tube replacement forks 44 and 45. Next, the motor 18 is rotated forward by a predetermined amount, and the bogie 6 is moved forward, so that the concave portions 47a on the front sides of the respective refill forks 44, 45 correspond to the flange portions of the empty bobbin E. In this state, the elevating mechanism 52 is driven to lower the support rail 50 by a predetermined amount, and then is raised to a predetermined position. Then, the locking state of the empty bobbin E by the bobbin hanger 53 is released,
As shown in FIG. 8B, the empty bobbin E is suspended from the recess 47a.

Then, after the bogie 6 is moved forward to a position where the empty bobbin E faces the bobbin wheel 41, the bobbin rail 40 is raised, and the bottom of the empty bobbin E is mounted on the bobbin wheel 41. In this state, the empty bobbin E
Although the upper flange portion is in a state of being raised from the concave portion 47a, the flange portion of the full bobbin F is held in a state fitted in the concave portion 47b. Next, the bogie 6 retreats to a position where the full bobbin F faces the bobbin hanger 53. After the empty bobbin E is mounted on the bobbin wheel 41, the replacement forks 44,
If the detecting means (not shown) detects that 45 has retreated to a position where it does not hinder the operation of the roving machine 2, the control device restarts the roving machine 2. And bobbin rail 4
After 0 has been raised to the winding position, winding of the roving is resumed.

Next, after the support rail 50 is lowered by a predetermined amount, the bobbin flange is raised again to a position where it is separated from the recess 47b, and the full bobbin F is hung on the bobbin hanger 53. Thereafter, the motor 18 is rotated in the reverse direction, and the carriage 6 is retracted to the standby position, and the respective refill forks 44, 45 are also arranged at the standby position where there is no obstacle to the passage of the worker. Next, the lifting mechanism 5
2 is driven, the support rail 50 is raised to the standby position, and a series of pipe replacement work is completed. Until the next full package, the bobbin transporting body 48 with the full bobbin F suspended is carried out from the support rail 50 to the spinning process.
The bobbin transport body 48 on which is suspended is carried into the support rail 50.

When the bogie 6 moves forward from the standby position to the working position with the start of the pipe replacement operation, foreign matter on the rails 4 is removed because the scrapers 31 are in contact with the rails 4 as the wheels 15 rotate. Thereafter, the wheels move on the rail 4. Further, the magnet 34 moves on the front side in the traveling direction of the pinion 19. Therefore, as shown in FIG. 7A, when a foreign matter 54 made of a magnetic material such as a small screw is present on the rack 5, the foreign matter is attracted to the magnet 34 and moves, and the gap between the pinion 19 and the rack 5 is moved. It is possible to prevent the foreign matter 54 from biting into the inside.

When the carriage 6 moves backward, the magnet 34 is
Since it moves on the rear side of 9, the foreign matter cannot be removed by suction prior to the movement of the pinion 19. However, there is a low possibility that the foreign matter 54 is newly present on the rack 5 before the reversing device 3 moves to the work position and retreats. Therefore, the foreign matter 54 can be substantially prevented from being caught between the pinion 19 and the rack 5 by removing the foreign matter 54 during the forward movement.

When there are a plurality of foreign substances 54, the magnet 34 moves upward against the urging force of the coil spring 38 in accordance with the amount of the foreign substances 54, and many foreign substances 54 are removed.
Can be adsorbed. The foreign matter 54 attracted to the magnet is periodically removed by an operator. The cycle of this removal operation is longer than the conventional cleaning cycle.

This embodiment has the following effects. (1) When the automatic machine (replacement device 3) moves to the working position, the foreign matter on the rack 5 is removed by the suction and removal means (magnet 34), so that the foreign matter 54 is located between the pinion 19 and the rack 5. Is prevented from biting. As a result, the pinion 19 is prevented from deviating from the meshing position set with respect to the rack 5, and the replacement forks 44 and 45 are accurately arranged at the working position.

(2) The suction removing means is disposed at least on the forward side of the automatic machine with respect to the pinion 19 during the operation of the automatic machine. Therefore, the foreign matter 54 on the rack 5 can be removed by the small suction removing means so that the pinion 19 does not bite the foreign matter 54 when the carriage 6 moves.

(3) Since the attracting and removing means is the magnet 34, the foreign matter 54 made of a magnetic material can be attracted and removed with a smaller and simpler structure as compared with the attracting and removing means utilizing vacuum (negative pressure). Further, since a permanent magnet is used for the magnet 34, the configuration is simpler than that of an electromagnet.

(4) Since the magnet 34 is supported in a state where the distance from the rack 5 can be changed, the distance between the magnet 34 and the rack 5 increases when the amount of the foreign matter 54 existing on the rack 5 is large. Thereby, many foreign substances 54 can be adsorbed without difficulty.

(5) Since the scrapers 31 that contact the upper surface of the rails 4 are provided on both front and rear sides of the carriage 6, the wheels 15 stomach foreign matters and accumulated fly present on the rails 4 to lift the carriage 6 up. And the probability of being unable to run becomes extremely low. In addition, fly wool containing cotton wax is
Even if it adheres to the surface, it can be reliably removed.

(6) Since the scraper 32 for removing the fly waste attached to the wheel 15 is provided, the fly fiber containing cotton wax or the synthetic fiber containing the oil agent (fly waste) adheres to the wheel 15. Can be reliably removed before growing large. As a result, it is possible to avoid an increase in the load applied to the motor 18 during the movement of the bogie 6, and the difference is caused by the difference in height between the upper surface of the bogie 6 in which the fly flies and the like adhere to the wheels 15 and the upper surfaces of the other bogies 6. It is possible to prevent the occurrence of a pipe change error due to a variation in the height of the pipe replacement forks 44, 45.

(7) Sensors (proximity switches 29a, 29b) are provided for detecting the lifting of each carriage 6 corresponding to the rack 5, that is, the lifting of the pinion from the rack 5, and control is performed when the carriage 6 rises by a predetermined amount or more. The device stops the carriage 6 from running. Therefore, even if the foreign matter 54 exists on the rack 5 between the magnet 34 and the pinion 19 and the foreign matter 54 bites between the pinion 19 and the rack 5, the brake is activated when the bogie 6 rises. The cart 6 is stopped by operating. As a result, the recovery work is simplified, and the meshing between the pinion 19 and the rack 5 does not change over the foreign matter 54, so that an unnecessary repair man-hour can be eliminated.

(8) The predetermined stop position of the pipe replacement device 3 is
Since the rotation amount of the pinion 19 from the reference position is calculated from the output signal of the rotary encoder 20 and the motor 18 is controlled, it is not necessary to accurately arrange the detected part at each predetermined stop position.

(9) In the tube changing device 3, a plurality of pinions 19 fixed to a drive shaft 17 mounted in parallel with the longitudinal direction of the roving machine 2 mesh with the racks 5 provided in parallel on the floor surface. It is reciprocated by rotating in a state where it is turned. Therefore, a pipe replacement device having a long frame structure for providing a large number of pipe replacement forks 44 and 45 at a predetermined pitch can be accurately moved to a predetermined position with a small bending of the frame, and the pipe replacement operation can be performed. It can be done smoothly.

(10) In addition to the mechanical stopper 4a,
Sensors 25 and 26 for detecting overrun are provided,
The traveling of the trolley 6 is stopped based on the detection signals of the sensors 25 and 26. Accordingly, the stopper 4a functions as a final safety device, and usually stops by the detection signals of the sensors 25 and 26 before the bogie 6 collides with the stopper 4a, thereby avoiding damage to the roving machine main body and the bogie 6. .

(11) When the lift or overrun of the carriage 6 is detected, the notifying means is driven based on the detection signal, so that the operator can notice the abnormality abnormally quickly, and the abnormality recovery process can be quickly performed. Thus, the stop time of the roving machine 2 can be shortened.

(12) Since the connecting member 8 for connecting the plurality of trucks 6 functions as a duct for accommodating the power supply line and the signal line, the power supply line and the signal line can be provided without providing a separate duct dedicated to the power supply line and the signal line. Line management is simplified.

(13) Since the bar 12 and the sponge 13 are interposed in the gap between the rail 4 and the rack 5 laid near the pit 9, foreign matter such as small screws can be prevented from entering the gap. .

(14) The balance weight 46 is supported horizontally in parallel with the shaft 42 and behind the vertical plane including the axis of the drive shaft 17. Therefore, the stability when the pipe replacement device 3 moves with the bobbin suspended is improved.

(Second Embodiment) Next, a second embodiment will be described with reference to FIG. In this embodiment, as means for removing foreign matter on the rack 5, a compressed gas injection unit is provided in addition to the magnet 34, and an injection nozzle is provided in place of the scrapers 31, 32. It is different from the form, and the other configuration is the same. The same parts as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

The connecting member 8 houses a pipe 55 for supplying compressed air over substantially the entire length. The truck 6 provided with the rotary encoder 20 is provided with a duct 56. The duct 56 has a compressed air supply unit 57 disposed in a pit formed on the side of the moving path of the truck 6, and a pipe 55. A part of a hose 58 connecting to one end is housed. The compressed air supply unit 57 is connected to a compressed air source of a factory (not shown). The compressed air supply unit 57 has a solenoid valve 5
Air is supplied via 9. The hose 58 is guided by a chain-shaped guide member 60 and moves as the carriage 6 moves. The guide member 60 has a first end fixed to the vicinity of the compressed air supply unit 57 and a second end fixed to a lower portion of the duct 56. The guide member 60 guides a power line and a signal line (not shown) simultaneously with the hose 58.

Each carriage 6 corresponding to the rack 5 is provided with an injection nozzle 61 in place of the scrapers 31 and 32, and also at a position facing the pinion 19 and a position facing the rack 5 as a compressed gas injection unit. Injection nozzle 62
Is provided. Each of the injection nozzles 61 and 62 is connected to a pipe 55.
Is connected to a branch pipe 63 (only a part is shown).

The control device outputs an open command to the solenoid valve 59 prior to a drive command to the motor 18 during a pipe replacement operation, and outputs a close command to the solenoid valve 59 when the truck 6 reaches the forward end.

In this embodiment, the rail 4 and the wheels 15 are cleaned by compressed air injected from the injection nozzle 61 instead of the scraper 31. In addition, the injection nozzle 6
The fly waste accumulated on the pinion 19 and the rack 5 is blown off by the compressed air injected from the second 2, and the magnetic foreign material 54 on the rack 5 is attracted to the magnet 34. The time when the compressed air is injected from the injection nozzles 61 and 62 is during the time when the pipe replacement device 3 moves to the most advanced position for doffing the full bobbin F during the pipe replacement work, and then when retreating or re-advancing. Sometimes compressed air is not injected. Since the pipe replacement operation is relatively short, if cleaning is performed at the start of the pipe replacement operation, there is no possibility that a large amount of fly waste will be accumulated by the time the single operation is completed.

This embodiment has the following effects in addition to the effects (1) to (4) and (7) to (12) of the first embodiment. (13) The magnet 3 is used to clean the rack 5 with compressed air.
Pinion 1 after removing fly waste etc. which cannot be removed by 4
Since the 9 moves, the fly waste accumulated on the rack 5 can be prevented from gradually growing on the pinion 19.

(14) Since the compressed air injection timing is set while the pipe replacement device 3 moves to the most advanced position for doffing the full bobbin F during pipe replacement work, the compressed air injection time Is short, energy is saved, and the rack 5 and the like can be efficiently cleaned.

The embodiment is not limited to the above, and may be embodied as follows, for example. The electromagnet may be used as the magnet 34 instead of the permanent magnet. In this case, the operation of removing the foreign matter adsorbed by the magnet 34 is simplified.

In place of the magnet 34, the foreign matter on the rack 5 may be suctioned and removed by negative pressure instead of the magnet 34 as the suction removing means. For example, a suction nozzle is provided to face the rack 5 on the forward side of the pinion 19 during the operation of the automatic machine. In this case, unlike the case where the magnet 34 is used,
Since foreign matter made of non-magnetic material can be removed by suction, fly waste and the like can also be removed, and the probability of foreign matter getting caught between the pinion 19 and the rack 5 is reduced.

The suction removing means may be provided on both front and rear sides with respect to the pinion 19. In this case, since the foreign matter on the rack 5 is removed even when the carriage 6 is retracted, the probability of the foreign matter getting caught between the pinion 19 and the rack 5 is further reduced.

The coil spring 38 is used to support the magnet 34 so that the distance from the rack 5 can be changed.
Instead, a sponge may be interposed between the bracket 35 and the support plate 36. In this case, the same effect can be obtained.

The distance between the magnet 34 and the rack 5 may be fixed at a predetermined position of the carriage 6 in a state where the distance cannot be changed. ○ The injection nozzles 61 and 62 are not provided facing the rail 4, the rack 5, the wheel 15 and the pinion 19, respectively, and the engagement portion between the pinion 19 and the rack 5 and the contact portion between the wheel 15 and the rail 4 are provided. Alternatively, one nozzle may be provided so that compressed air is injected on the forward moving side of the carriage 6. In this case, the pinion 19 and the rack 5 can be cleaned by one nozzle, and the rail 4 and the wheel 15 can be cleaned by another nozzle, so that the number of nozzles can be reduced.

In a configuration in which cleaning is performed with compressed air,
The injection timing of the compressed air is not limited to the above.
Or the start of the compressed air injection may be started by a command to stop the full roving of the roving frame 2, and the injection may be stopped by restarting the roving frame 2.

Instead of calculating the position of the carriage 6 based on the output signal of the rotary encoder 20 and controlling the motor 18 to stop at the predetermined position, a detected part is provided at each predetermined stop position, Control may be performed to stop the motor 18 based on the detection signal.

The sensor 22 for detecting the reference position and the sensors 25 and 26 for detecting the overrun may be provided on one carriage 6. In this case, the sensors are arranged such that the movement locus of the sensor 22 and the movement locus of the sensors 25 and 26 are not located on a straight line.

○ Sensors 25 and 2 for detecting overrun
6 and the proximity switches 29a and 29b for detecting the lift may be omitted. As the sensors 22, 25, 26, other sensors than the proximity switch, for example, a reflection type optical sensor or a limit switch may be used. Then, the shape and material of the detected part are changed according to the type of the sensor.

A brush may be used instead of the scrapers 31, 32. However, in order to remove the fly waste attached to the wheels 15 and the rails 4 in a state containing the cotton wax and the oil agent,
Scrapers are preferred.

The present invention may be applied to a tube replacement device in which the tube replacement forks 44 and 45 are fixed in a horizontal state. In place of the configuration in which the empty bobbin E and the full bobbin F can be suspended at the same time as the replacement forks 44 and 45, a configuration in which one bobbin is suspended may be employed.

The present invention may be applied to a tube replacement fork that supports the bobbin by engaging with a flange formed at the lower portion of the bobbin, or a tube replacement device that includes a tube replacement arm configured to grip the bobbin. ○ Not only simultaneous pipe changers, but also pipe changers that move along the roving machine to change pipes by multiple weights, or move along spinning machines to perform roving change and roving operations. The present invention may be applied to other spinning machines such as roving changers.

The technical ideas (inventions) other than those described in the claims that can be grasped from the embodiment will be described below together with their effects. (1) In the invention described in claim 5, the compressed gas injection unit injects the compressed gas while the automatic machine moves to the work position. In this case, compared to a configuration in which the jetting is always performed or a configuration in which the jetting is performed periodically at predetermined time intervals, the fly waste and the like can be efficiently cleaned with a smaller amount of the compressed gas used.

[0073]

As described in detail above, claims 1 to 7 are provided.
According to the invention described in (1), the pinion and the rack can move in a normal meshing state without frequent cleaning of the rack by the operator.

According to the second aspect of the present invention, the foreign matter on the rack can be removed with a small amount of suction removing means so that the pinion does not bite the foreign matter when the automatic machine is moved. According to the third aspect of the present invention, it is possible to remove a foreign substance made of a magnetic material with a small size and a simple configuration as compared with a suction removing unit using vacuum (negative pressure).

According to the fourth aspect of the present invention, when the amount of foreign matter present on the rack is large, the distance between the magnet and the rack is increased, so that many foreign matter can be easily absorbed. According to the fifth aspect of the present invention, since the rack is cleaned with the compressed gas, the pinion moves after the fly, etc., which cannot be removed by the magnet, is removed, so that the fly, deposited on the rack, steps on the pinion. It can prevent rare growth.

According to the sixth aspect of the present invention, the effect of the second aspect of the present invention can be obtained in a simultaneous replacement apparatus for a roving machine. According to the invention described in claim 7, it is possible to stop the automatic machine based on the detection signal of the sensor when the pinion rises from the rack.

[Brief description of the drawings]

FIG. 1 is a schematic partial side view of a lower part of a bogie according to a first embodiment.

FIG. 2 is a schematic side view showing a relationship between a roving machine and a tube changing device.

FIG. 3 is a sectional view taken along line III-III in FIG. 1;

FIG. 4 is a schematic partial plan view showing the relationship between the tube changing device and the roving machine.

FIG. 5 is a schematic partial plan view showing a relationship between a tube replacement fork and a bobbin wheel.

FIG. 6 is a partially cutaway schematic rear view of the tube replacement device.

FIG. 7A is a schematic sectional view showing a supporting state of a magnet,
(B) is a schematic sectional view showing an operation.

FIG. 8 is a schematic side view illustrating a tube replacement operation.

FIG. 9 is a partial schematic side view of the second embodiment.

[Explanation of symbols]

2 ... roving machine, 3 ... tube changing device as automatic machine for spinning machine, 5 ...
Rack, 17: drive shaft, 19: pinion, 29a, 29
b: proximity switch as a sensor; 34, a magnet as suction and removal means; 62, an injection nozzle as a compressed gas injection unit.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshihiko Maesaka 2-1-1 Toyota-cho, Kariya-shi, Aichi F-term in Toyota Industries Corporation (reference) 4L056 AA21 BF02 BF08 BF09 BF12 BF22 BF27 BF32 BG02 BG16 BG49 DB02 DB08 DB12 EA15 EA19 EA22

Claims (7)

[Claims] 1. An automatic spinning machine having a pinion meshing with a rack provided on a floor surface and moving by rotation of the pinion, wherein the spinning machine is provided with suction removing means at a position facing teeth of the rack. Automatic machine. 2. An automatic spinning machine according to claim 1, wherein said suction and removal means is disposed at least on a forward side of said pinion during operation of said automatic machine. 3. The apparatus according to claim 1, wherein said suction and removal means is a magnet.
Or the automatic machine for spinning machines according to claim 2. 4. The automatic spinning machine according to claim 3, wherein the magnet is supported in a state in which a distance from the rack can be changed. 5. The automatic spinning machine according to claim 3, further comprising a compressed gas injection unit in addition to the magnet. 6. The spinning machine according to claim 1, wherein a plurality of pinions fixed to a drive shaft mounted in parallel with a longitudinal direction of the roving machine are rotated in a state of being engaged with racks provided in parallel with a plurality of floors, respectively. The spinning machine according to any one of claims 1 to 5, which is a simultaneous refilling device which reciprocates in a direction orthogonal to a longitudinal direction of the roving machine to move to a working position and a standby position. For automatic machine. 7. The automatic spinning machine according to claim 1, further comprising a sensor for detecting the lifting of the pinion from the rack.