JPH05170326A - Conveying equipment using movable body - Google Patents

Abstract

PURPOSE:To perform work against an article to be conveyed not forcibly but safely by providing a current collecting device and lifting device to a movable body which can travel freely on a fixed path. CONSTITUTION:A feed roller 39 is forcibly rotated with a movable body 10 positioned opposing to a feed device 30 to be abutted on a pressure section 15 to make the movable body 10 travel on a fixed path. At this moment, the movable body 10 is given braking force at the other end of the fixed path to convey a group of movable bodies pushing from their back. In addition, a current collecting equipment 14 is focally contacted with a feeder system 4 to conduct electricity to a lifting device 25. At a desired position, commands are given to the lifting device 25 by manual or remote operation or cam operation to move an article(car body) 6 to be conveyed is moved up and down to keep it at an arbitrary level to perform work against the article to be conveyed on the movable body not forcibly but safely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer facility using a movable body, which is used for transferring an object to be transferred on a fixed path on the floor side.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Laid-Open No. 2-209309 has provided a structure for transporting a non-driving carriage on a fixed route.

In this conventional structure, the movable body conveying device is provided on the upper side of a fixed path on which the movable body can freely travel, the brake device is provided on the lower side, and the movable body conveying device for the next process is provided on the lower side of the brake device. ing. The movable body transporting device is composed of a pair of left and right feed rollers that can come into contact with the side surface of the movable body and a rotary drive device that interlocks with these feed rollers. In addition, the brake device is composed of a pair of left and right brake rollers that can come into contact with the side surface of the movable body and a torque motor that applies a reverse feed rotational force to these brake rollers. It is set to large.

According to such a conventional structure, a large propulsive force is applied to the movable body by forcibly rotating both feed rollers, which are in contact with both side surfaces of the movable body, by the rotation drive device. The movable body can be conveyed on a fixed path.
At this time, the movable body pushes and conveys the movable body group which is preceding and stopped.

On the lower side of the fixed path, since the brake roller which is being rotated in the reverse direction is in contact with both side surfaces of the movable body, a propulsive force in the reverse conveying direction is applied to the movable body, and the feed rotation is performed here. Since the force is larger than the reverse feed rotational force, the brake roller is rotated to the feed rotation side according to the difference. As a result, the lower movable body is conveyed while being subjected to the braking action, so that the movable body group is conveyed in a dense rearward pushing state without creating a gap between the front and rear ends. Then, the movable body pushed out from the brake device is carried out to the next step by the next movable body conveying device.

[0006]

According to the above-mentioned conventional structure, since the object to be conveyed supported by the movable body is always at a constant level on the movable body, the operator may have an unnatural posture depending on the work place. I have to take it and work.

The object of the present invention is to form a dense train-like train of movable bodies without any gap between the movable bodies so that the movable bodies can be efficiently transported, while working on the objects to be transported on the movable bodies. Is to provide a transfer facility using movable bodies that can be reasonably and safely performed.

[0008]

Means for Solving the Problems In order to achieve the above-mentioned object, the transfer equipment using a movable body of the present invention is provided with a movable body which is supported and guided by a rail and can travel on a fixed route and which has a current collector. On this movable body, a support for a transported object that can be raised and lowered,
A feed device for providing a traveling force to the movable body by providing a feed roller to the pressure receiving portion in the fixed path while forming a pressure receiving portion facing outward while providing an electric lifting device.
A braking device that applies a braking force to the movable body by applying a braking roller to the pressure receiving portion is provided, and a power feeding device is disposed along the fixed path.

[0009]

According to the structure of the present invention, the feed roller, which is forcibly rotated, is brought into contact with the pressure receiving portion while the movable body is positioned to face the feed device at one end portion of the fixed path, and thus the feed is performed. The device gives a large propulsive force to the movable body, so that the movable body can travel on a fixed route.
At that time, at the other end of the fixed path, since the braking force is applied to the movable body by the braking device, the lower movable body is conveyed while being subjected to the braking action.
Therefore, the movable body group is conveyed in a dense back-pushing state without forming a gap between the front and rear ends on the fixed path.

In the movable body group which is conveyed on the fixed route in such a state, the current collector is brought into sliding contact with the power feeding device, and the lifting device is energized. Therefore, by giving instructions to the lifting / lowering device at a desired position by human operation, remote control, or cam operation, and operating this lifting / lowering device, the support part, that is, the object to be transported is lifted to a desired level. obtain.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. A pair of left and right rails 1 is a pit 2 formed on the floor side.
It is laid inside, and a fixed path 3 is formed by these rails 1. In the pit 2, a power feeding device 4 is arranged along the fixed path 3.

The movable body 10 has a plurality of front and rear wheels 12 on both sides of the lower portion of the main body 11, and by being mounted on the rail 1 via these wheels 12, the movable body 10 can travel on a fixed path 3. . The bracket 13 which is continuously provided from the lower part of one side of the main body 11.
In addition, a current collector 14 that is slidably contactable with the power feeder 4 from below is provided. Here, the upper surface of the main body 11 has the same level as that of the work floor board 5, and both side surfaces of the main body 11 have pressure receiving portions 15
The front surface and the rear surface of the main body 11 are further formed as contact surfaces 16.

On the movable body 10, there are provided an object-to-be-supported portion 20 that can be moved up and down, and an electric lifting device 25. That is, the transported object support portion 20 has a flat frame shape, and the support tools 21 are provided upright from the four corners of the upper surface thereof, and the vehicle body 6, which is an example of the transported object, is supported from below through the support tools 21. . The electric lifting device 25 includes a pantograph mechanism 26 disposed between the main body 11 and the support portion 20, and the pantograph mechanism.
It is composed of a ball screw type electric cylinder 27 for operating 26. The electric cylinder 27 is connected to a control panel 28 mounted on the main body 11, and the control panel 28 is connected to the current collector 14.

The fixed path 3 is linear, and a feed device 30 for transmitting a running force to the movable body 10 is provided at the start end portion thereof, and a braking device 50 is provided at the end portion thereof. The feeding device 55 is provided slightly better.
The respective devices 30, 50, 55 are symmetrically arranged in a pair on the left and right.

Next, details of the feeding device 30 will be described. A vertical axis 33 is erected from a base body 31 arranged in the pit 2 on the outer side of the rail 1 via a mounting member 32. A support member 35 is swingably attached to the vertical axis 33 via a bearing 34 around a vertical axis 36. A servo motor 37 with a speed reducer, which is an example of a rotation drive device, is arranged on the support member 35, and a urethane feed roller 39, for example, is fixed to an output shaft 38 taken out upward from the servo motor 37. It The servomotor 37 applies a feed rotational force A to the feed roller 39. The support member 35 integrally has a bracket 40 extending forward,
A cylinder device 41 that swings the support member 35 is provided between the base 40 and the base body 31.

Therefore, by operating the cylinder device 41, the support member 35 can be swung around the longitudinal axis 36, and the feed roller 39 can be moved into contact with or separated from the pressure receiving portion 15. At that time,
In order to regulate the maximum approach position, the stopper members 42 are continuously provided from the support member 35, and the stopper members 42 are connected to each other.
A stopper body 43, which can be brought into contact with 42, is provided on the base body 31 in a positionally adjustable manner.

The braking device 50 has a structure similar to that of the feeding device 30, and is capable of coming into contact with and separating from the pressure receiving portion 15 of the main body 11 from the side, and a braking roller 51 made of urethane, for example. The reverse rotation drive device 52, which is interlocked with the braking roller 51 and applies a reverse feed rotational force B to the braking roller 51, is configured. The reverse rotation drive device 52 is composed of a torque motor or the like, and its reverse feed rotational force B is set to be smaller than the feed rotational force A of the servomotor 37. Further, the feeding device 55 has the same structure as the feeding device 30.

Next, the work of transporting the vehicle body 6 in the above embodiment will be described. The movable body 10 that has moved due to the wheels 12 being supported and guided by the rails 1 is stopped when the front end of the fixed path 3 reaches the start end and enters the feeding device 55. Next, in a state where the feeding device 30 side is in a receiving posture, the feeding device 55 is operated in the same manner as the feeding device 30 described later to convey the movable body 10. At that time, the front abutment surface 16 of the fed movable body 10 is transferred to the rear abutment surface 16 of the rearmost movable body 10 of the movable bodies 10 located in the fixed route 3 in the form of a dense train. The movable bodies 10 are brought into contact with each other, and the group of movable bodies is conveyed by the feeding force of the feeding device 55.

The feeding by the feeding device 55 is stopped when the front end of the corresponding movable body 10 enters the feeding device 30. At this time, the cylinder device 41 of the feeding device 30 is extended and the supporting member 35 is swung outward around the longitudinal axis 36, so that the feeding roller 39 is moved to the pressure receiving portion 15 as shown by the phantom line in FIG. Away from. Therefore, the loading (running) of the movable body 10 can be performed without any trouble.

After loading, the feed roller 39 is moved closer to the pressure receiving portion 15 as shown by the solid line in FIG.
Are rotatably driven by the servomotor 37. Therefore, when the feed roller 39 that is forcedly rotated is brought into pressure contact with the pressure receiving portion 15, the traveling force is given to the movable body 10 by the rotational force A of the feed, so that the movable body 10 moves in the fixed path 3
The above-mentioned conveyance is carried out at a desired speed, and the group of movable bodies 10 located in the fixed route 3 in the form of a dense train is pushed and carried.

The feed amount of the movable body 10 by the feed device 30 is detected by an encoder or the like, and when a predetermined feed amount is detected, the feed roller 39 is separated and the carrying operation is stopped. The movable body 10 reaching the terminal side of the fixed path 3 is braked by the braking device 50. That is, when the transfer operation of the movable body 10 by the feeding device 30 is stopped,
The cylinder device in the braking device 50 is contracted so that the braking rollers 51 are separated from each other. Then, in conjunction with the loading movement of the feeding device 30, both braking rollers 51 are moved closer to each other and brought into pressure contact with the pressure receiving portion 15 by the action opposite to the above, and at this time, the braking roller 51 is different from the feeding roller 39. It is driven to rotate on the opposite side.

That is, both braking rollers 51 are forcedly rotated in opposite directions by driving the torque motor. Therefore, when the braking roller 51 that is forcibly rotated is brought into pressure contact with the pressure receiving portion 15, a thrust force in the reverse transport direction D acts on the movable body 10 due to the reverse feed rotational force B thereof.
Is larger than the reverse feed rotational force B, the braking roller 51 is rotated toward the feed rotation side according to the difference, and the load at that time is absorbed by the torque motor.

As a result, the movable body 10 corresponding to the lower braking device 50 is conveyed while being subjected to the braking action. Therefore, a plurality of movable bodies 10 are provided between the feeding device 30 and the braking device 50. However, they are densely aligned in the rearward pushing state without forming a gap between the front and rear ends thereof. The braking action by the braking device 50 is stopped before or after the feeding device 30 stops the conveyance.

As described above, while the movable body 10 is intermittently conveyed on the fixed path 3 and while the movable body 10 is stopped, an operator on the work floor board 5 or an operator who has transferred to the main body 11 is Perform various tasks against. At that time, work floor board 5
Since the and the main body 11 are on the same level, walking including the transfer of the worker can always be performed safely.

Further, in the fixed path 3, the control panel 28 is energized by the sliding contact of the current collector 14 with the power feeder 4, so that at a desired position, a human operation by the operator on the main body 11 or the like, By operating the control panel 28 by remote control by a signal from the ground side or by operating a cam provided on the ground side, the electric cylinder 27 can be operated by an instruction from the control panel 28, and thereby the pantograph mechanism 26 can be operated. The support portion 20 can be raised and lowered via the support member 21, and the vehicle body 6 supported by the support tool 21 can be raised and lowered to an arbitrary level.

The braking device 50 is driven by the rearward pushing as described above.
The movable body 10 extruded from is moved to the next step.
In each feeding device 30 and feeding device 55, the corresponding servo motors 37 are electrically synchronized, and in the braking device 50, the corresponding reverse rotation drive devices 52 are electrically synchronized.

In the above embodiment, in the feeding device 30, the feeding device 55 and the braking device 50, the feeding roller 39 and the braking roller
Although all 51 are forced drive type, this is, for example, one side feed roller 39 and braking roller 51 are forced drive type,
Then, the feed roller 39 and the braking roller 51 on the other side may be of the idling type.

[0028]

According to the present invention having the above-described structure, the feed roller, which is positioned at one end of the fixed path and faces the feed device and which is forcibly rotated, contacts the pressure receiving portion of the non-driving movable body. By bringing them into contact with each other, a large propulsive force can be applied to the movable body by the feeding device, so that the movable body can be conveyed on a fixed path. At that time, the movable body is conveyed while being subjected to the braking action because the braking force is applied by the braking device at the other end of the fixed path. Therefore, the movable body group moves forward and backward on the fixed path. It can be efficiently transported in a dense back-pushed state without creating a gap between the ends.

In the movable body group which is conveyed on the fixed route in such a state, since the current collecting device is slidably contacted with the power feeding device to energize the lifting / lowering device, it is manually operated at a desired position. By operating the elevating device by remote control, remote control, etc., the support part, that is, the transferred object can be moved up and down to an arbitrary level. Regardless of the reason, you can always do it safely.

[Brief description of drawings]

FIG. 1 is a front view of a transfer facility using a movable body according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of a main part of a transfer facility using the movable body.

FIG. 3 is a plan view of the feeding device section.

FIG. 4 is a schematic plan view of a transfer facility using the movable body.

[Explanation of symbols]

 1 rail 2 pit 3 constant path 4 power supply device 6 vehicle body (object to be conveyed) 10 movable body 11 main body 14 current collector 15 pressure receiving portion 16 contact surface 20 object to be conveyed 25 lifting device 27 electric cylinder 28 control panel 30 Feed device 37 Servo motor 39 Feed roller 41 Cylinder device 50 Braking device 51 Braking roller 55 Feeding device A Reverse feed rotational force B Feed rotational force

Claims (1)

[Claims] 1. A movable body, which is supported and guided by rails and is capable of traveling on a fixed path and having a current collector, is provided with a movable object support portion that can be raised and lowered, and an electric lifting mechanism. And a pressure-receiving portion that faces outward, and a feeding device that applies a traveling force to the movable body by acting a feed roller on the pressure-receiving portion and a braking roller that acts on the pressure-receiving portion during the fixed path. And a braking device for applying a braking force to the movable body, and a power feeding device is arranged along the fixed path.