JPH0532317A - Load transporting device - Google Patents

Abstract

PURPOSE:To use standardized common parts and thereby facilitate massproduction by forming a sorting conveyor from a front and a rear frame, which are constructed by casting in the same shape, and a conveyor device arranged between these two frames. CONSTITUTION:A sorting conveyor 60 furnished in the upper part of a body 40 is composed of a front and a rear frame 61, which are constructed by the lost wax casting method in the same shape, and a conveyor device 62 arranged between them. Each dolly 1 runs following a specified path at a certain speed through utilization of magnetic attractive and repulsive forces exerted by a linear motor 30 and a secondary conductor. Using a control device 77, a servo motor 73 is rotated either in regular or reverse direction in conformity to a signal sent from a photo-transmission unit 76, and loads on a belt 70 are delivered to a sorting chute. Carrying-in of the load is made from a carry-in conveyor 89 to a sorting conveyor 60. Because running is thus made in linear motor system free from rotary parts, it can be performed without generation of noise, vibration, trouble, etc., substantially.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, for example, conveys an object to be conveyed, which is carried on a carriage on a fixed route, at any sorting position among a plurality of sorting positions preset in the route. The present invention relates to a load carrying device for discharging in a lateral direction.

[0002]

2. Description of the Related Art Conventionally, as a load carrying device of this type, a structure disclosed in Japanese Patent Application Laid-Open No. 2-182611 has been provided. In this conventional configuration, a traveling rail having a C-shaped cross section is provided, and a traveling carriage that is supported and guided by the traveling rail and is capable of traveling on a fixed traveling route is provided. This traveling trolley has a movable body having a shape straddling the traveling rail as a main body, and a traveling roller supported by the traveling rail and a lateral shake preventing roller are provided on the movable body, and traveling on the upper surface of the movable body. There is a sorting conveyor that conveys in the left and right directions. Further, a roller is provided on the outer side surface of the movable body, and a running force is applied to the traveling carriage by fitting the roller to the screw.

[0003]

In the above-described load carrying device, the structure of the sorting conveyor is complicated, including the roller supporting portion and the motor supporting portion, so that mass production cannot be performed and the whole is expensive. It becomes a thing.

An object of the present invention is to provide a load carrying device which can be mass-produced easily by unifying and standardizing parts and which can be provided at a low cost.

[0005]

In order to achieve the above object, a load carrying device of the present invention has a traveling rail and a traveling carriage guided by the traveling rail, and the traveling carriage is mounted on the traveling rail. A sorting conveyor is provided on the upper part of the guided main body, and the sorting conveyor is composed of a pair of front and rear frames made of casting and having the same shape, and a conveyor device arranged between these frames.

[0006]

According to the structure of the present invention, the main frame of the sorting conveyor can be unified and shared, and the sorting conveyor can be simplified and inexpensively constructed.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 8, reference numeral 1 denotes a traveling carriage that can travel on a fixed route in a state of being connected to each other, and an upper portion thereof has a sorting conveyor 60 that conveys a load (object to be conveyed) 2 in a lateral direction with respect to a traveling direction A. By the driving of the sorting conveyor 60, the load 2 is discharged to a plurality of sorting chutes 3 provided along a fixed route.

As shown in FIGS. 1 and 2, for example, a base frame 5 that can be installed on the floor is made of aluminum extruded material, and a plurality of dovetail grooves 6 are formed on both side surfaces thereof.
Are symmetrically formed. A pair of left and right base frames 5 are arranged, and the inner surfaces facing each other at predetermined intervals in the length direction are connected by a connecting member 7 using the dovetail groove portion 6, so that both base frames 5 are They are integrated at a predetermined interval in the width direction.

A traveling rail 10 for guiding the traveling carriage 1.
Is made of aluminum extruded material, and has a plurality of dovetail grooves 11A, 11B on its both sides in order from top to bottom.
Are symmetrically formed over the entire length, and a groove 12 is formed in the middle portion. The traveling rail 10 is arranged in a monorail type above the pair of base frames 5,
A plurality of locations in the length direction are supported by the rail frame 15 on the side of the base frame 5.

The rail support 15 is made of casting,
The connecting portion 16 in the vertical direction and the base portion 17 in the horizontal direction form an inverted J shape. Then, the upper portion of the connecting portion 16 is formed into a flat plate portion 18 in the vertical direction, and a convex portion 19 which can be fitted into the concave groove 12 is formed on the outer surface of the flat plate portion 18, and a plurality of portions are formed around the convex portion 19. Bolt holes are formed at the points. Further, vertical bolt holes are formed at both ends of the base portion 17 in the left-right direction.

In order to support the traveling rail 10 on the side of the base frame 5 via the rail support 15, first, the rail support 15 is erected at a predetermined position. This can be done by screwing a bolt 20 passed through the bolt hole from above from the connecting member 7 side. At that time, the vibration isolator 21 is interposed between the base portion 17 and the connecting member 7. .. To connect the side surface of the traveling rail 10 to the upper portion of the connecting portion 7, the dovetail groove portion is formed.
With the plate nut 22 positioned at 11B, the convex portion 19 is fitted into the concave groove 12 to bring the side surface into contact with the flat plate portion 18, and the bolt 23 that has passed through the bolt hole from the lateral outside is aforesaid. Plate nut
It can be done by screwing into 22.

The traveling rail 10 is arranged in an elliptical shape as shown in FIG. 6, so that a fixed route connects a pair of parallel linear path portions 25 and the start and end of these linear path portions 25. It is formed from a semicircular curved path portion 26.

On one side surface of the traveling rail 10, that is, on a side surface opposite to the connecting surface of the rail support 20, the linear motor 30 can be repositioned in the rail length direction by utilizing the dovetail groove portion 11A. Installed on.

That is, a mounting bracket 31 is provided on the back side of the linear motor 30, and a bolt hole is formed in this mounting bracket 31. Then, with the plate nut 32 slidably positioned in the dovetail groove portion 11A, the linear motor
The linear motor 30 can be attached to one side surface of the traveling rail 10 by bringing the mounting bracket 31 of 30 into contact with one side surface and then screwing the bolt 33, which has passed through the bolt hole from the outside, into the plate nut 32. ..

A feeding rail 35 is provided on the other side surface of the traveling rail 10 by utilizing the dovetail groove portion 11B. That is, a protective rail 36 is provided on the other side surface of the traveling rail 10, and the protective rail 36 is fixed to the other side surface of the traveling rail 10 via a nut 37 and a bolt 38 provided in the dovetail groove portion 11B.
Further, on the outer surface of the protective rail 36, four power supply rails 35, which are composed of a three-phase AC power supply line and a ground line, are arranged.

Next, the traveling vehicle 1 will be described with reference to FIGS. 1 and 2. The traveling carriage 1 is provided with the traveling rail 10
The main body (40) guided by the main body (40) and the sorting conveyor (60) provided on the upper part of the main body (40). The main body 40 has a pair (a plurality) of C-shaped frames 41 in the traveling direction when viewed from the traveling direction. That is, both frames 41 are manufactured in the same shape by casting, and the inverted L-shaped member 42 and the inverted L-shaped member 42 are formed.
It is formed in a C shape by a horizontal member 44 integrated with a lower end of the fixing tool 43. And a square plate-shaped secondary conductor
Fixing the front and rear edges of 45 to the inner surface of the vertical rod of the inverted L-shaped member 42
By fixing the front and rear edge portions of the plate 55 to the upper surface of the horizontal rod portion of the inverted L-shaped member 42 with the fixing tool 56 while fixing them by the 46, both frames 41 are secondary in a state in which a predetermined interval is provided in the traveling direction. It is integrated via the conductor 45 and the plate 55.

An upper bracket 48 is rotatably provided at the end of the horizontal rod portion of each inverted L-shaped member 42 via a vertical pin 47,
In these upper brackets 48, a pair of left and right lateral shake preventing rollers 49 that can freely come into contact with both upper side surfaces of the traveling rail 10,
An upper roller 50 is provided which is capable of abutting on the upper surface of the traveling rail 10.

A lower bracket 52 is rotatably provided at an end of the horizontal member 44 via a vertical pin 51, and the lower bracket 52 is abuttable on both side surfaces of the lower portion of the traveling rail 10. A pair of left and right lateral shake preventing rollers 53 and a lower roller 54 that can come into contact with the lower surface of the traveling rail 10 are provided.

The sorting conveyor 60 provided on the upper portion of the main body 40 constructed in this way is composed of a pair of front and rear frames 61 made in the same shape by the lost wax casting method, and a conveyor device arranged between these frames 61. It consists of 62 and. The frame 61 has shaft support portions 63 and 64 penetrating forward and backward at both left and right ends thereof, and a motor mounting portion 65 is formed in a penetrating position below the shaft support portion 64 on the other end side. .. The frame 61 is connected to the main body 40 by placing the middle part and one end side of the lower part on the horizontal rod portion of the inverted L-shaped member 42 and integrating them by the fixture 66.

The conveyor device 62 disposed between the frames 61 includes a drive pulley 68 disposed via a bearing device 67 between shaft supporting portions 64 on the other end side and a shaft supporting portion 63 on one end side. A driven pulley 70 disposed via a bearing device 69, an endless belt 771 stretched between the two pulleys 68, 70, a servomotor 73 mounted on a motor mounting portion 65 via a fixture 772, The transmission device 74 is configured to transmit the rotation of the servo motor 73 to the drive pulley 68.

A downward chassis 75 is disposed between the other ends of the frames 61, and an optical transmission unit 76 for exchanging signals with each sorting chute 3 side is provided on the outer surface side of the chassis 75. A control device 77 is provided. Also, the inverted L-shaped member 42
A servo amplifier 78 is arranged on the outer surface of the vertical rod. The control device 77, the servo amplifier 78, and the servo motor 72 are properly connected.

The traveling vehicles 1 configured as described above are connected to each other by the connecting device 80 and travel on a fixed route in the form of an endless train. That is, the connecting device 80 includes the vertical pin 47 at the rear end of the preceding traveling vehicle 1 and the vertical pin 47 at the front end of the following traveling vehicle 1.
It is provided between 47 and the connecting rod 81 with adjustable length.
The desired connection is achieved by connecting both ends of the to the vertical pin 47 via the spherical bearing 82.

As shown in the circuit configuration of FIG. 7, the traveling vehicles 1 form a group of every five vehicles, and only the leading traveling vehicle (hereinafter, referred to as a parent vehicle) 1A in the traveling direction A has the group. Attach the servo motor 72 from the power supply rail 35 to the upper bracket 48.
A current collector 85 is provided to receive power (for example, as shown in Fig. 1).
reference). Then, power is supplied from the parent trolley 1A to another traveling trolley (hereinafter, referred to as a child trolley) 1B of the group through a wiring line 86.

As shown in FIG. 1, the base frame 5
Covers that surround both sides of the fixed path from the top to the top
88 are lined up. 89 is a carry-in conveyor, and the load 2 is carried in with the carry-in conveyor 89 connected to the sorting conveyor 60. 90 indicates a wiring duct.

In the above embodiment, the traveling vehicle 1 travels at a predetermined speed on a certain route by utilizing the attractive force and repulsive force of the magnet by the linear motor 30 and the secondary conductor 45. Then, while the power is being supplied to the servo motor 73 from the power supply rail 35 via the collector 85 or the wiring line 86, the control device
According to the signal sent from the optical transmission unit 76 to the 77, the servomotor 73 can be rotated normally or reversely through the control device 77, and the load 2 on the belt 70 can be discharged to the sorting chute 3. The load 2 is carried in from the carry-in conveyor 89 to the sorting conveyor 60. Since such a traveling is a linear motor system with no rotating part, noise,
It can be performed with almost no vibration or failure.

As described above, the cost can be reduced by not providing the collector 85 on the sub-car 1B, and the maintenance work due to the abrasion of the collector 85 can be reduced. Further, by providing and connecting the ground wire, it is possible to prevent electric shock to a human body due to static electricity generated during traveling of the traveling vehicle 1, and to ensure safety.

Although the linear motor system is shown in the above embodiment, the traveling vehicle 1 may be driven by another system.

[0028]

According to the present invention having the above-described structure, the main frame of the sorting conveyor can be unified and common, and can be easily and easily manufactured by casting, including the pulley supporting portion and the motor supporting portion. The mass production of frames is possible, and the sorting conveyor can be simplified and inexpensively constructed.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a load carrying device according to an embodiment of the present invention.

FIG. 2 is a side view of the cargo transport apparatus.

FIG. 3 is a front view of the sorting conveyor section.

FIG. 4 is a side view of the sorting conveyor section.

FIG. 5 is a plan view of the sorting conveyor section.

FIG. 6 is a schematic plan view showing the entire route.

FIG. 7 is a power supply circuit diagram of the cargo transport apparatus.

FIG. 8 is a partial perspective view of the cargo transport apparatus.

[Explanation of symbols]

 1 Traveling trolley 1A Parent trolley 1B Slave trolley 2 Load (object to be transported) 10 Traveling rail 11A Dovetail groove 11B Dovetail groove 12A Recessed groove 12B Recessed groove 15 Rail support 30 Linear motor 31 Mounting bracket 35 Power supply rail 36 Protective rail 40 Main body 41 Frame 45 Secondary conductor 60 Sorting conveyor 61 Frame 62 Conveyor device 63 Shaft support part 64 Shaft support part 65 Motor mounting part 68 Drive pulley 70 Driven pulley 71 Belt 73 Servo motor 74 Transmission device 77 Control device 85 Current collector 86 Wiring line

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65G 54/02 9245-3F // B65G 17/10 A 8819-3F

Claims (1)

Claims: 1. A traveling rail and a traveling carriage guided by the traveling rail. The traveling carriage is provided with a sorting conveyor on an upper portion of a main body guided by the traveling rail. ,
The sorting conveyor comprises a pair of front and rear frames made of casting and having the same shape, and a conveyor device arranged between the frames, and is connected to the main body through the frame, and the load carrying device is characterized in that ..