JPH07177612A - Thread feeder carrier - Google Patents

Abstract

PURPOSE:To allow positive carrying out only of the head carrier among a plurality of carriers waiting at a station through a simple constitution. CONSTITUTION:In a thread feeder carrying system, a carrier 4 being reset to a station 3 after carrying a thread feeder is moored to a stopper 10 provided at the forward end of a waiting path 8 having an inclining part 9. When a head carrier 4 is carried out among a plurality of waiting carriers 4, the stopper 10 is retracted and the head carrier 4 is fed out while being accelerated at a rate higher than the gravitational acceleration by means of an accelerator 11 disposed on the waiting path 8. When the head carrier 4 passes through the position of the stopper 10, the stopper 10 is advanced and a following carrier 4 is stopped at the head position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device which circulates a plurality of conveying vehicles along a conveying path and automatically supplies a yarn feeder to a predetermined position.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 4-3166641 discloses a yarn feeder conveying system of this type. At the station position, the yarn feeder transport system places the yarn feeder on the transport vehicle, transports the yarn transport object to the desired loom by the transport vehicle, and then returns the transport vehicle to the station at that position. Multiple transport vehicles are waiting in series. The transport vehicle is driven by a linear motor provided along the traveling path.

[0003]

2. Description of the Related Art In the above-mentioned conventional technique, when a plurality of transport vehicles are waiting in series at a station, in order to transport only the leading transport vehicle to the loading position of the yarn feeder,
It is necessary to provide a stopper that can move back and forth at the tip of the standby path, retract the stopper, carry out the leading transport vehicle, and then move the remaining multiple standby transport vehicles toward the stopper. Therefore, the linear motor must be provided along the standby path so as to correspond to a plurality of waiting vehicles, and the configuration of that portion becomes complicated. Further, in order to carry out only the leading carriage, it is necessary to control the driving of a plurality of linear motors, so that the control becomes complicated.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to reliably carry out only the leading carriage from a plurality of carriages waiting at a station with a simple structure.

[0005]

According to the first aspect of the present invention, in a yarn feeder conveying system having a plurality of conveying vehicles traveling by a propulsion device provided along a conveying path, conveying of a yarn supplying body is performed. When the carrier that has returned to the station is moored by a stopper provided at the tip of the waiting path having the descending slope, and the first carrier is carried out from a plurality of waiting carriers. , The stopper is retracted, and the leading transport vehicle is sent out while accelerating at an acceleration greater than the acceleration of gravity by the acceleration device provided in the standby path, and when the leading transport vehicle passes the position of the stopper, Is advanced to lock the succeeding vehicle at the leading position.

A second aspect of the present invention is a yarn feeder conveying system similar to the above, in which a conveying vehicle that has finished feeding the yarn feeder and returned to the station is provided at a tip portion of a standby path composed of a downward slope. The first stopper is moored, and when the leading carriage is carried out, the second stopper provided behind the first stopper by a distance corresponding to the length of one carriage is advanced to the first stopper. At the same time, after that, the first stopper is retracted, and after the leading carriage has passed the position of the first stopper, the first stopper is advanced and the second stopper is retracted to the standby position at the tip. Subsequent vehicles are moored.

Here, the driving and control of the accelerator and the stopper are executed in sequence by a program preset by the carry-out control circuit. For this reason, of the plurality of waiting carriages, only the leading carriage can be easily carried out with a simple structure. Further, the propulsion device is arranged along the conveyance path and is assembled by a linear motor or a compressed air injector, and the acceleration device may be the same as the propulsion device, or may be provided with a rotating roller separately from the propulsion device. , Is assembled by utilizing the biasing force of the rotating roller. A braking device is provided as necessary to decelerate the second carrier when the first carrier is unloaded. This braking device is composed of a linear motor or friction braking means.

When the leading carrier passes through the stopper,
As a mode of advancing the stopper, it is necessary to advance the stopper when a gap between the leading carriage and the succeeding carriage is detected, or to allow the leading carriage to pass the stopper after the stopper moves backward. By advancing the stopper after the elapse of time, the subsequent stopper is securely anchored at the tip position. The loading place for loading the yarn feeder on the transport vehicle is set downstream of the stopper in the transport direction or at a position corresponding to the leading transport vehicle engaged with the stopper.

[0009]

[Embodiment 1] The basic construction of Embodiment 1 is shown in FIGS. 1 to 5, and is a yarn feeder conveying apparatus 1 corresponding to the first invention. In these drawings, the yarn feeder conveying device 1 is a station 3 of a textile factory 2 and a yarn carrier 5 is mounted on a conveying vehicle 4 and is continuously or continuously along a conveying path 6 which is installed above a loom 13. The propelling device 7 arranged intermittently causes the transport vehicle 4 to travel, transports the yarn feeder 5 to the position of the loom 13 at a predetermined position, and collects the yarn feeder 5 without yarn.
In the transport system for returning the transport vehicle 4 to the station 3, a standby path 8 having a downward slope 9 is formed inside the station 3, and a stopper 10 detachable from the transport vehicle 4 is provided at the tip of the standby path 8. An accelerating device 11 is provided which is provided at a portion of the carriage 4 and is applied to the leading carriage 4 locked by the stopper 10 so as to exert a thrust force larger than a gravity component parallel to the inclined portion 9 and the stopper is provided when the carriage 4 is unloaded. 1
0 is moved backward and the acceleration device 11 is driven to accelerate the leading transport vehicle 4 so that the leading transport vehicle 4 stops.
It is configured by a carry-out control circuit 12 that advances the stopper 10 when passing through the position.

Inside the weaving factory 2, a large number of looms 13 are arranged in a plurality of rows in an aligned state. A loop-shaped (annular) transport path 6 is provided above the loom 13 to guide the transport vehicle 4, and a linear motor 71 as a transport device 7 is provided along the transport path 6.
Are arranged. A part of the transport path 6 passes through the inside of the station 3 for waiting and controlling the transport vehicle 4. The station 3 has an unloading place 14 for unloading an empty (no yarn) yarn feeder 5 from the transport vehicle 4, a standby place 15 for waiting a plurality of transport vehicles 4, and a yarn transporter 5 mounted on the transport vehicle 4. It has a mounting place 16 for carrying out, and these are sequentially partitioned along the traveling direction of the carrier vehicle 4.

The waiting path 8 is a running path formed at the waiting place 15, and is formed only by the descending slope portion 9. The stopper 10 is provided near the tip of the standby path 8 and moves backward against the compression spring 18 when the solenoid 17 is excited, and when the solenoid 17 is demagnetized, the stopper 10 is elastically moved by the compression spring 18. The vehicle 4 advances and engages with the engaging portion 19 provided on the front side in the traveling direction of the transport vehicle 4 to stop the transport vehicle 4. The engaging portion 19 is provided so as to be able to move forward and backward with respect to the transport vehicle 4 by a support rod 21, and is biased in the moving direction by a compression spring 20 for buffering.

The acceleration device 11 is provided, for example, as a linear motor 111 at the tip of the standby path 8 in order to accelerate the transport vehicle 4 when the transport vehicle 4 starts, and the thrust of the linear motor 111 is It is set to be larger than the gravity component parallel to the standby path 8. Here, the gravity component is calculated by using the inclination angle θ of the inclined portion 9 and the acceleration g of gravity.
It is represented by the formula gSinθ. In this embodiment, since the mounting location 16 is set to a position higher than the carry-out position, the thrust is set to such a degree that the carrier vehicle 4 after starting can reach the high mounting position by inertia. Therefore, it is not necessary to install a linear motor or the like along the upward slope between the carry-out position and the mounting location 16.

The main body 24 of the transport vehicle 4 can travel to a portion of a rail 61 that constitutes the transport path 6 by a plurality of guide rollers 22 of a portion of the frame 23. The linear motor 71 of the propulsion device 7 and In order to be driven by the linear motor 111 of the acceleration device 11, the part of the secondary conductor 25 corresponds to the drive part of the linear motors 71 and 111. The rail 61 is attached below the support member 27 of the support column 26. A pair of hooks 28 are attached to the main body 24 of the transport vehicle 4,
The bobbin 29 of the yarn feeder 5 is hooked on the hook 28. That is, at the mounting location 16, the bobbin 29 of the fully wound yarn feeder 5 is hooked on the rear hook 28 of the transport vehicle 4. The yarn feeder 5 supported by the hook 28
Is indicated by a chain double-dashed line in FIG. 2 for reference.

Then, the carry-out control circuit 12 is
It is connected to the sensor 30 via the control device 31 and the amplifier circuit 32, and is connected on the output side to the linear motor 111 of the acceleration device 11 and the solenoid 17 for driving the stopper 10. At the waiting place 15, the carrier 4
Is detected by, for example, a sensor 30 attached to the support column 26 and becomes an input signal of the carry-out control circuit 12.

When a yarn feeder request signal is sent from a certain loom 13 to the control device 31 of the station 3, the control device 31 outputs a carry-out command to the carry-out control circuit 12. The carry-out control circuit 12 excites the solenoid 17 and retracts the accelerator 10 in order to retract the stopper 10.
Drive the linear motor 111. Stopper 10
When the vehicle moves backward, the first carriage 4 among the plurality of carriages 4
Are accelerated by the linear motor 111 of the acceleration device 11 at an acceleration greater than the acceleration due to gravity. At the same time, the plurality of waiting carrier vehicles 4 are accelerated by the action of gravity and start to descend the inclined portion 9. Therefore, the leading transport vehicle 4
An appropriate gap is formed between the second carrier vehicle 4 and the second carrier vehicle 4 that follows. When detecting the gap, the sensor 30 generates a gap detection signal and sends it to the carry-out control circuit 12. Therefore, the carry-out control circuit 12 demagnetizes the solenoid 17, advances the stopper 10, and stops the driving of the linear motor 111. At this point, the stopper 10
Securely protrudes between the leading transport vehicle 4 and the second transport vehicle 4 and engages with the engaging portion 19 of the second transport vehicle 4. As a result, the second and subsequent transport vehicles 4 are put in the standby state again.

Further, the carried vehicle 4 is accelerated by a separating acceleration device 11 (linear motor 111) and then moves uphill to a mounting place 16 where a new stopper (not shown) is provided. Stop by. Here, the bobbin 29 of the fully wound yarn feeder 5 is hooked on the rear hook 28 provided on the transport vehicle 4 by a handling device (not shown) or the like. In this way, the fully wound yarn feeder 5 is mounted on the transport vehicle 4 to be started. Here, the transport vehicle 4 receives thrust from the linear motor 71 of the propulsion device 7, and moves along the transport path 6 to the position of the loom 13 that has output the yarn feeder request signal.

Although not shown, a yarn feeding member receiving member is provided in the vicinity of each loom 13, and when the transport vehicle 4 passes through the receiving member, an empty yarn feeding member 5 installed in the receiving member is provided. Hook the front hook 28,
The fully wound yarn feeder 5 is delivered to the yarn feeder receiving member.
In this way, the transport vehicle 4 transports the fully-wound yarn feeder 5 to a predetermined loom 13 position, receives the empty yarn feeder 5, returns to the station 3, and returns to the empty yarn feeder. 5 is unloaded at the unloading position, enters the waiting path 8, and enters the waiting state.

In the above-described embodiment, the carry-out control circuit 12 controls the advance / retreat of the stopper 10 in accordance with the movement of the transport vehicle 4, but the advance time of the stopper 10 is within a substantially constant time from the start time of the carry-out. Since it is within the limit, the time is calculated by a timer, and when the time is up, stopper 1
It is also possible to control the advance of 0. Therefore, when the carry-out control circuit 12 inputs the carry-out command, the built-in timer is operated to move the stopper 10 from the evacuation position to the leading carrier vehicle 4.
The accelerator 11 may be stopped and the stopper 10 may be advanced when the time required for the vehicle to pass the position of the stopper 10 has elapsed.

As shown in FIG. 6, the standby path 8 can also be composed of a descending inclined portion 9 and a horizontal portion 91 continuing to the lower end thereof. Here, the horizontal portion 91 is set as a section having a length substantially equal to the length of one vehicle 4.
Further, the loading place 16 of the yarn feeder 5 may be installed at a position where the yarn feeder 5 can be mounted on the leading transport vehicle 4 on standby. At this time, a carry-out command is output after the mounting is completed.

Further, FIG. 7 shows another application example. A linear motor for deceleration as a control device 34 is provided behind the linear motor 111 of the acceleration device 11 so that a larger gap is created between the leading transport vehicle 4 and the second transport vehicle 4 when the transport vehicle 4 is unloaded. 33 is attached. The thrust of the deceleration linear motor 33 is set to a value smaller than the gravity component parallel to the inclined portion 9. The standby road 8 in this embodiment is set at a position higher than other running roads. Therefore, the carrier vehicle 4 that has returned returns to the standby position 8 after being moved to a higher position. At the time of unloading, the stopper 10 retracts and the two linear motors 3
3,111 operate simultaneously. Since the second transport vehicle 4 is decelerated, a large gap is created between the second transport vehicle 4 and the first transport vehicle 4, and the second and subsequent transport vehicles 4 are more reliably locked at the predetermined positions. Of course, instead of the decelerating linear motor 33, a mechanical braking device 34 that exerts friction on the second transport vehicle 4 may be provided in the standby path 8.

[0021]

Second Embodiment As shown in FIG. 8, the second embodiment is an example in which the acceleration device 11 is composed of a pair of rollers 35 and 36. Of the pair of rollers 35, 36, one roller 35 is a driven roller, and is attached to the position of the pillar 26 supporting the rail 61 so as to be rotatable about, for example, a vertical axis, and the other roller 35. A driving roller 36 is driven by a motor 37 and a pair of bevel gears 38. The driving roller 36, the motor 37, and the like are attached to the piston rod 41 of the air cylinder 40 via a bracket 39. The air cylinder 40 is attached to a fixed portion such as a frame, like the support column 26.
Abut the side surface of.

When the leading transport vehicle 4 is unloaded, the unloading control circuit 12 activates the motor 37 to drive the roller 36 on the drive side.
After rotating, the stopper 10 is retracted and
By operating the air cylinder 40 to bring the rotating roller 36 into contact with the side surface of the frame 23 of the leading transport vehicle 4, the rotation of the driving side roller 36 is transmitted to the frame 23, so that the leading transport vehicle 4 is moved. Accelerate in the carry-out direction. Sensor 3
When the gap 0 is detected between the leading transport vehicle 4 and the second transport vehicle 4, the carry-out control circuit 12 advances the stopper 10 and deactivates the air cylinder 40, and the drive side is driven. The roller 36 of FIG.

[0023]

Third Embodiment As shown in FIG. 9, the third embodiment is an example in which the propulsion device 7 is constituted by a plurality of compressed air injectors 72. That is, a plurality of compressed air injectors 72 are provided along the transport path 6 and apply a propulsive force to the transport vehicle 4 by injecting compressed air from the nozzle 73 toward the transport vehicle 4. Corresponding to this, the transport vehicle 4 is provided with a plurality of fins 74 for receiving compressed air. A compressed air injector 112 is provided as an accelerator 11 at the tip of the standby path 8. Therefore, these compressed air injectors 72, 112 are directed toward the fins 74 of the transport vehicle 4 when the transport vehicle 4 travels along the transport path 6 and is accelerated in the standby path 8.
Compressed air is injected from 3 and urged in the traveling direction.

The braking device 34 can also be constituted by a compressed air injector. The compressed air ejector for braking is attached in a direction directed to the upstream side in the traveling direction, injects compressed air in the deceleration direction to the transport vehicle 4 to be stopped, and applies a braking force thereto. Therefore, the installation position of the compressed air injector is a position where the compressed air is applied to the second carrier vehicle 4 on standby. Instead of providing the accelerating device 11, as shown in FIG. 10, the inclination of the standby path 8 on which the leading transport vehicle 4 on standby is located is the inclination of the standby path 8 on which the second and subsequent transport vehicles 4 wait. It can also be set as a steeper inclination angle.

[0025]

Fourth Embodiment This fourth embodiment corresponds to the second invention and is shown in FIGS. 11 to 13. The yarn carrier conveying apparatus 1 of this embodiment is the same as the conveying system of the first embodiment except that the standby path 8 including the descending inclined portion 9 in the station 3 is provided.
And a second stopper 43 that can be engaged with and disengaged from the transport vehicle 4 is provided in the vicinity of the front end portion of the standby path 8, and the second stopper 43 is one transport vehicle more than the first stopper 42. Provided at a distance corresponding to the length of the
The second stopper 43 is advanced and the first stopper 42 is retracted at the time of carrying out the
After passing through the first stopper 42, it is configured by the carry-out control circuit 12 that advances the first stopper 42 and retracts the second stopper 43.

As described above, the carry-out control circuit 12 is similar to that shown in FIG.
As shown in FIG. 1, while the transport vehicle 4 is on standby, the first stopper 42 is advanced and the second stopper 43 is retracted. At the time of unloading, as shown in FIG. 12, the second stopper 43 is advanced, the first stopper 42 is retracted, and after the leading transport vehicle 4 is unloaded, as shown in FIG. After advancing the first stopper 42, the second stopper 43 is retracted. In this way, the leading transport vehicle 4 is reliably separated from the subsequent transport vehicles 4 in the standby state,
It is sent out from the standby path 8 to the transport path 6 via the inclined portion 9.

It should be noted that even after the leading transport vehicle 4 is discharged, it is possible to make it stand by in the state of discharge, that is, as it is in FIG.
In this case, the first and second stoppers 4 will be carried out at the next unloading.
2, 43 enters the carry-out operation from the state of FIG. 13 through the state of FIG. Therefore, according to this example, the first stopper 42 is advanced and the second stopper 43 is retracted not when the leading transport vehicle 4 has passed the position of the first stopper 42 but when it is carried out next time. become.

[0028]

Other Embodiments As is apparent from the above-mentioned embodiments, the propulsion device 7 can be constituted by a linear motor, a compressed air injector, etc., and the acceleration device 11 can be a linear motor, a compressed air injector, or a driving device. It can be configured by a roller or the like. Therefore, these propulsion device 7 and acceleration device 11 can be independently replaced in any of the embodiments. However, considering the efficiency of the equipment, the propulsion device 7
It is advantageous to adopt the same type of drive system as the acceleration device 11. Further, the additional speed reducer (linear motor 33) is not limited to the linear motor, and any suitable one such as a compressed air injection method or a friction brake may be adopted.

[0029]

According to the present invention, it is possible to reliably carry out the leading carriage from a plurality of carriages waiting in series with a simple structure. Therefore, it is possible to easily perform the centralized carry-out control of a plurality of transport vehicles, and to supply the yarn feeder to a predetermined position in an orderly manner.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a yarn feeder conveying device of the present invention.

FIG. 2 is an enlarged side view of an inclined portion of a standby path and a transport vehicle, a stopper, and the like at that portion.

FIG. 3 is an enlarged cross-sectional view of a stopper and an engaging portion of a transport vehicle that engages with the stopper.

FIG. 4 is an enlarged front view showing a partial cross section of a supporting portion of a transport vehicle.

FIG. 5 is a sensor or a linear motor for the carry-out control circuit,
It is a block diagram of a connecting portion such as a stopper.

FIG. 6 is a side view showing another example of a standby path.

FIG. 7 is a side view showing another example of the standby path.

FIG. 8 is an enlarged front view showing another example of the supporting portion of the transport vehicle and the propulsion device.

FIG. 9 is an enlarged side view of an example in which an accelerator is configured by a compressed air injector on a standby path.

FIG. 10 is a side view showing a state where the transport vehicle is locked by the stopper on the standby path.

FIG. 11 is a side view showing an operation state of two stoppers when the transport vehicle is carried out on the standby path.

FIG. 12 is a side view showing an operation state of two stoppers when the transport vehicle is carried out on the standby path.

FIG. 13 is a side view showing an operation state of two stoppers when the transport vehicle is carried out on the standby path.

[Explanation of symbols]

 1 yarn feeding carrier 2 woven factory 3 station 4 carrier 5 yarn feeder 6 carrier 7 propulsion device 8 standby 9 slanted part 10 stopper 11 accelerator 11 carry-out control circuit 13 loom 14 unloading place 15 standby place 16 Installation location 17 Solenoid 42 First stopper 43 Second stopper

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location // B65G 47/68 Z 7716-3F 54/02

Claims (3)

[Claims] 1. A transporting vehicle that carries a yarn feeder at a station, travels by a propulsion device arranged along a transport path to transport the yarn feeder to a predetermined position, and then returns to the station and stands by. In a yarn carrier conveying system including a plurality of units, a standby path having a downward slope is formed in the station,
A stopper that can be engaged with and disengaged from the transport vehicle is provided at the tip of the standby path, and an acceleration device that applies a thrust force greater than the gravity component parallel to the standby path is provided to the transport vehicle that is locked by the stopper. A feed-out control circuit for retracting the stopper when the transporting vehicle is carried out, driving the accelerator, and advancing the stopper when the leading transporting vehicle passes the position of the stopper. Thread carrier. 2. The yarn feeder conveying apparatus according to claim 1, wherein the propulsion device and the acceleration device are linear motors. 3. A transporting vehicle that carries a yarn feeder at a station, travels by a propulsion device arranged along a transport path, transports the yarn feeder to a predetermined position, and then returns to the station and stands by. In a yarn carrier transport system with multiple units, a standby path consisting of a descending slope is formed in the station,
A first stopper that can be engaged with and disengaged from the transport vehicle is provided at the tip of the standby path, and a second stopper is provided behind the first stopper by a distance corresponding to the length of one transport vehicle. , When the transport vehicle is carried out, the second stopper is set to the advanced state, the first stopper is retracted, and after the leading transport vehicle passes the first stopper, the first stopper is advanced to the second level. A yarn carrier transporting device, which is provided with a carry-out control circuit for retracting the stopper.