JPS5945273A - Trolley conveyor device - Google Patents

Abstract

PURPOSE:To enable the loading and unloading of articles to be surely made on the travel of a trolley hanger, by constituting the travell hanger suspended from a trolley body so that the fork part of the hanger can be selectively turned on its travel. CONSTITUTION:A trolley conveyor 1 comprises a pluarlity of trolly bodies 4 which are moved along a suspended rail 2 by the rotation of a chain 3, and a trolly hanger 5 is suspended from each trolley body 4 by means of a suspending member 6. The hanger 5 is provided with a bifurcate fork part 10 which may be rotated about its vertical axis by an actuated rotary device 7 and also may be rotated back and forth around a rotary shaft 6a. Further, lifters are arranged in loading and unloading stations 11, 14 along a conveyor path, respectively. A 180 deg. turning device 15a for turning the direction of the fork part 10 into the forward direction thereof is disposed between both lifters, and a 90 deg. turning device for turning the direction of the fork part 10 into the rearward direction thereof is also arranged upstream of the station 14.

Description

[Detailed description of the invention] The present invention relates to a trolley transport device.

In general, as a means of transporting sheets, etc. to the installation work place in the pasting assembly of automobiles) 01J-Ship speed device is effective. By the way, when using such a device to operate the trolley hanger continuously at a constant speed and load a workpiece onto the hanger, it is necessary to lift the workpiece using a loading lifter and transfer it to the load receiving section of the trolley hanger in a timely manner. Since the trolley hanger is always moved in one direction by the trolley conveyor, it is difficult to match the timing well, and there is a problem that the loading operation becomes dangerous.

Therefore, in order to solve this problem, conventional
As shown in Japanese Patent No. 7-25828, a workpiece is hung on the trolley hanger after the trolley hanger is moved intermittently and the trolley hanger is guided so that it does not move when the trolley hanger stops. was there.

However, such a conventional device has a problem in that the conveyance speed becomes slow due to the stoppage of the trolley hanger, resulting in poor conveyance efficiency.

The present invention has been made in view of the problems of the conventional trolley conveyor, and is provided with a trolley conveyor that constantly moves in one direction, and the bifurcated baggage receiver has a fork portion for connecting the trolley of the trolley conveyor. A large number of trolley hangers are provided on the main body so as to be rotatable around the loading axis and in the front and rear directions, and a loading lifter and an unloading lifter are arranged at predetermined positions below the trolley conveyor. A first direction changing means for rotating the trolley hanger so that its fork portion faces forward is disposed upstream of the conveyor from the lifter and between the two lifters; A second direction bending means for rotating the trolley hanger so that its fork portion faces backward is disposed near the load lifter, and upon receiving an approach detection signal of the trolley hanger, the trolley hanger is rotated so that its fork portion faces backward. A trolley transport device that allows objects to be loaded safely and reliably while the trolley conveyor is moving, without deteriorating transport efficiency, by arranging a button that rotates between the front so that it is directly above the loading lifter. is intended to provide.

An embodiment of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention. In the figures, 1 is a trolley conveyor, and the trolley conveyor 1 is connected to a suspension rail 2. Toro! The suspension rail 2 consists of a J-chain 3 and a trolley main body 4, and the suspension rail 2 is formed into a loop shape using a shaped steel and has a flange portion 2a of the H-shaped steel.
is attached to the ceiling beam of the building so that it is horizontal when viewed in cross section. 1st through the entrance/exit 40. It goes to the second assembly station 12, 13, turns back here, passes through the building entrance 40 again, reaches the unloading station 14 provided outside near the entrance, and finally returns to the loading station 11.

Further, the trolley chain 3 is arranged slightly below and in parallel with the suspension rail 2, and the trolley chain 3 is moved by a conveyor drive device (not shown) in the clockwise direction 1i-iJ of FIG. It is rotated in the direction shown by the arrow in the figure). The trolley chain 3 has two roller brackets 4 a 2 of the trolley main body 4.
A predetermined l'l in the front and back direction of the trolley conveyor 1.
] The roller bragets 4a are mounted and fixed at intervals.
Two guide rollers 4b are each rotatably attached to the upper end portions in relative amounts, and the guide rollers 4b can move vertically from side to side in FIG. 3 on the flange portion 2a of the suspension rail 2. The two upper roller brackets 4a are connected by a connecting link 4C.

The upper end of a suspension member 6 of the trolley hanger 5 is fitted into the center of the connecting link 4C, and the suspension member 6 is rotated in the front-rear direction of the trolley conveyor 1 by a rotation shaft 6a. It is pivoted for free movement.

Further, a mounting flange portion 3b provided on the fixed shaft 8 of the rotating device 7 of the trolley hanger 5 is fixed to the mounting 7 flange portion 6b at the lower end of the suspension member 6 by tightening bolts. bracket) 8a integrally formed at the lower end of
Two rotation regulating members 8C are formed at the front and rear, and the rotation regulating member 8C is cylindrical and has a 61y (61y) at its lower end.
A ball 8d is arranged to be movable up and down, and the @η ball 8d is always urged downward by a spring 8e provided above it. Two ends of a rotary shaft 9 are rotatably inserted into the fixed shaft 8, and the rotary shaft 9 is inserted into the fixed shaft 8.
A rotation restriction plate 9a is attached to the rotation shaft 9 slightly below the rotation restriction portion 8C. The rotation regulating plate 9a has a circular shape, and has four hemispherical locking recesses 9 arranged at 90° intervals on the same circumference on its upper surface.
b is recessed, and the locking recess 9b can lock with the steel ball 8d. Further, a circular steady plate 9C is attached below the rotation regulating plate 9a of the rotating shaft 9, and a direction changing sprocket is attached below the steady plate 9C.
9d is attached and fixed.

Also, a mounting flange 11 formed at the lower end of the rotating shaft 9
A fork mounting bracket 10a is bolted and fixed to 39e, and the upper end of the right fork pipe 10b is fixed to the fork mounting bracket 10a, and the left and right fork pipes 10b are each roughly U-shaped. The shape is bifurcated, and the distance between the two branches increases toward the bottom, and the back portions are fixed to each other by two upper and lower connecting pipes IOC, and the lower fork portions 10d are parallel to each other. The fork portion 10d is disposed horizontally, and a mounting btlIIiioe is formed by fixing a flat plate to the upper side of the fork portion 10d. Further, a disk-shaped dust cover 1Of is fixed horizontally to the upper end portions of the left and right fork pipes 10b, and the dust cover 1Of has lubricating oil etc.
This is to prevent the workpiece from falling and adhering to the workpiece above.

Further, on the upstream side of the loading station 11 of the trolley conveyor 1, the loading station 11 and the unloading station 1
4, a first 180° reversing device 15a, which is a first direction changing means, is arranged, and a first 90° reversing device 16a, which is a second direction changing means, is arranged slightly upstream of the unloading station 14. is located, and the above-mentioned loading station 1
A second 90° reversing device 16b is located slightly downstream of the second assembly station 13, and a second 90° reversing device 16b is located slightly upstream of the second assembly station 13.
Inversion preparation units 15b are respectively arranged. These reversing devices 15a, 15b, 16a, 16b are connected to the side guide rail 18 and the steady rest guide rail 19.
and a direction change chain 20, and the side guide rail 18 is arranged along the trolley conveyor 1 on both sides of the mounting flange parts 6b, 8b connecting the suspension part 6 and the fixed shaft 8. It is composed of a guide plate 18a having a predetermined length, and a plurality of side brackets 18b for attaching and fixing the guide plate 18a to a rotating device bracket 21 attached to a building beam or the like. Further, the steady rest guide rail 19 includes a guide plate 19a having a predetermined length, which is disposed slightly above the steady rest plate 9C along the trolley conveyor 1;
It is composed of a plurality of steady rest brackets 19b which are attached and fixed to the rotating device bracket 21.

Also, the above 1. Second 180° reversal device 15a.

The direction change chain 20 15b has a length of about 1/2 of the pitch circumference of the direction change sprocket 9d, and is disposed on the left side when facing the traveling direction of the trolley conveyor 1, and 1st. Second 90° inversion position 16a
, 16b have a length of about 1/4 of the pitch circumference, and are disposed on the left and right sides, respectively.
20' is fixed to the rotating device bracket 21 by a mounting bracket 20a, and can mesh with the direction changing sprocket 9d.

Also, the loading station 1 below the trolley conveyor 1
A loading lifter 2.3 and an unloading lifter 24 are arranged at the loading station 1 and the unloading station 14, respectively. It is equipped with movable arms 23b and 24b that move upward and downward between the vertical forces along the line, and a pallet 32 for transporting the workpiece can be placed on the upper circumference of these movable arms 23b and 24b. The pallet 32 is used to place a large number of sheets 25 as workpieces.

A pusher mount 26 is provided between the load lifter 23 and the unloading lifter 24, and the pusher mount 26 is slightly lower than the lower end surface of the trolley hanger 5, and the width of the trolley hanger 5 is It is wider, and the right side of the upper curve of this Butsusha frame 26 (lower side in Figure 4)
A central portion of an air cylinder 27 is rotatably mounted on a cylinder bracket 26a formed in the cylinder bracket 26a by a rotation shaft 27:l. Further, two bearings 28 are attached to the front end of the upper curve of the bushing frame 26 (the stone wing portion in FIG. 4), and a 1Ωi shaft 29 is rotatably fitted into the bearings 28. A rotating lever 30 is fitted and fixed to the right end of the rotating shaft 29, and the rotating lever 30 is connected to the air cylinder 27.
It is rotatably connected to the tip of the piston rod 27b by a connecting member 27C. Also, the above rotation: 1I
Two press levers 31a are fitted and fixed in a slightly circular part of the bearing 28 of 129, and the right press lever 311 is connected by a connecting member 31b, and the left and right end portions of the connecting member 31b are connected with each other. A suppressing plate 31C is fixed with bolts, and the suppressing plate 31c
The contact portion 31d made of nylon or the like is adhesively fixed to the ML side surface IM with adhesive or the like using a welding agent or the like.

Next, the operation will be explained.

First, using Figure 1, install the trolley hanger 5. The movements of the sheet 25 and the pallet 32 will be explained.

At the loading station 11, the fork portion 10d of the trolley hanger 5 is in the forward direction of the trolley conveyor 1, that is, facing forward, and in this state, the sheet 25 placed on the pallet 32 is loaded on the fork portion 10d together with the pallet 32. When the trolley hanger 5 is loaded onto the placing surface 10e and transferred in the direction indicated by the arrow in the same figure to the reversing station where the second 90' reversing device t161) is located, the trolley hanger 5 is transferred to the reversing device d, 16
b, the fork portion 10d is rotated 90' clockwise in FIG. When the trolley hanger 5 is transported in this state to the UΔ1 assembly station: /12, the assembly worker takes out the seat 25 for the left seat in the direction shown by the white arrow in the figure. ,
It is attached to a car body (not shown) flowing below the trolley conveyor 1. Thereafter, the trolley hanger 5 is transferred to a reversing station with a second 180° reversing device 15b, and is rotated 180° counterclockwise in the figure around its vertical axis by the reversing device 15b. The fork portions 10d of the fork portions face outward from the trolley conveyor 1, and when the trolley hanger 5 is transferred to the second assembly station 13 in this state, an assembling worker will be required to attach the fork portion 10d of the seat 25 to the right seat. The items will be taken out and assembled in the same manner as above. When all the sheets 25 are unloaded in this way, only the pallet 32 is reloaded on the trolley hanger 5, and in this state, the trolley hanger 5 is placed at the first 90° near the building entrance 4°. Once transferred to a reversing station with a reversing device 16a, the trolley hanger 5 is rotated by the reversing device 16a about its vertical axis 90' counterclockwise in FIG. It will be in a state where it faces in the opposite direction to the direction of travel, that is, it will be in a state facing backward. In this state, the trolley hanger 5 is transferred to the unloading station 14, where the pallet 32 is unloaded, and the trolley hanger 5 is rotated around its vertical axis by the first 180° reversing device ft15a. It is rotated 180° counterclockwise, and the fork portion 10d is turned forward and transferred to the loading station 11 described above.

Next, the trolley hanger 5 at the reversing station
The direction change operation will be explained. trolley hanger 5
is transferred at a location other than the reversing station, the locking recess 9b of the rotation regulating plate 9a of the rotating shaft 9
A steel ball 8d of a rotation restricting member 8C provided on the fixed shaft 8 is engaged with the trolley hanger 5, so that the trolley hanger 5 is transferred without rotating around its vertical axis.

When the trolley hanger 5 is transferred to the reversing station, the direction changing sprocket 9d is 180
The trolley handle tf meshes with the direction change chain 20 for rotation by 90 degrees or the direction change chain 20 for rotation by 90 degrees.
- Rotates as s progresses.

At this time, the steel ball 8d rises against the biasing force of the spring 8e and rolls in an arc on the rotation regulating plate 9a, and in this way, the trolley hanger 5
are rotated by 180° and 90° depending on the length of the direction changing chain 20° and 20', respectively (see Fig. 4), and in this state, the steel ball 8d is locked with the locking recess 9b, and as a result, the above-mentioned The trolley hanger 5 will be held at a predetermined angular position.

Finally, unloading and loading operations will be explained. The trolley hanger 5 is moved to the unloading station 14 with only the pallet 32 loaded and its fork portion 10d facing backward.
When the movable arm 24 of the unloading lifter 24 is transferred to
1) rises slightly above the mounting surface 10e of the fork portions 10d of the trolley hanger 5 between the fork portions 10d, as shown by the two-dot chain line in FIG. Then, the mounting surface 10
The pallet 32 on e is transferred onto the movable arm 24b, and when the trolley hanger 5 passes over the unloading lifter 24 in that state, the movable arm 246 descends with the pallet 32 still placed thereon. In this way, the pallet 32 is unloaded.

When the above-mentioned unloading is completed, the trolley hanger 5 is moved to the first
The fork portion 10d is rotated 1800 degrees by the 80° inversion and the fork portion 10d faces forward, and at the loading station 11, it is placed on the movable arm 23b of the loading lifter 23.
A pallet 32 on which a large number of sheets 25 are placed is placed, and the movable arm rises slightly upward. When the trolley hanger 5 passes over the first 180° reversing device 15a and is transferred to the vicinity of the cargo lifter 23, the I/lorry hanger 5 is detected by an approach detection device (r shown in the figure).
It is detected each time that the loader approaches the loading lifter 23, and the detection device issues an approach detection signal S. Then, the air cylinder 27 receives the approach detection signal and extends, moving the rotating arm 30 from the position shown by the two-dot chain line in FIG. 5 to the position shown by the solid line as shown by the one-dot chain arrow in the figure. The suppression arm 31a also rotates accordingly, and as a result, the lower end of the back of the trolley hanger 5 is pushed forward, and the trolley hanger 5 is rotated about the rotation axis 6a of the suspension member 6. It rotates forward, and its fork g<toa comes to be directly above the load lifter 23 described above. At this time, the upper end of the trolley hanger 5 c) Lorry conveyor 1
The trolley chain 31 is being pulled and moving forward, but its lower end, that is, the fork portion 10d, remains stationary without moving forward for a while. In this state, the load lifter 23 mentioned above descends, and as a result, the above-mentioned sheet The sheet 25 and the pallet 32 are transferred onto the loading direction 10e of the fork portion 10d, and the sheet 25 and the pallet 32 are loaded in this manner.

Trolley transport i of this embodiment configured and operated as described above
At t, when loading a work, the fork part 10d of the trolley hanger 5 is turned forward, and the trolley leaf 1 is rotated so that the fork part 10d is directly above the loading lifter 23, and the fork part 10d is the sheet 25 on the pallet 32.
The loading operation can be carried out very safely and reliably since the loading operation is carried out together with the loader. In addition, when unloading a workpiece, since the fork part 10d faces backward, the movable arm 24b of the unloading lifter 24 can be used to lift the pallet 3.
It is only necessary to push up the pallet 2, transfer it onto it, wait for the trolley hanger 5 to pass, and then lower it, and the unloading work of the pallet 32 can be easily carried out on emergency duty.

In addition, although the above embodiment was applied to conveying sheets for each pallet and collecting empty pallets once, the present invention applies to cases in which the load is placed directly on the trolley hanger.

Needless to say, it can also be applied to unloading.

As described above, according to the trolley conveyance device 5 according to the present invention, a trolley conveyor that constantly moves in one direction is provided, and the bifurcated baggage receiver has a fork portion, and a vertical shaft is attached to one trolley body of the trolley conveyor. A large number of trolley hangers are provided so as to be rotatable in the circumferential and front-back directions, and a loading lifter and an unloading J441J lid are arranged at fixed positions below the trolley conveyor. The Toro IJ is placed on the upstream side of the conveyor and between the two lifters.

The first direction changing means for rotating the hanger so that its fork part faces forward is rearranged, and the trolley hanger is rotated so that its fork part faces backward fl to the upstream side of the conveyor from the j unloading lifter. A 20,000th change means is arranged near the load lifter, and upon receiving an approach detection signal of the trolley hanger, the trolley hanger is rotated forward so that its fork portion is directly above the load lifter. I placed buttons that can be moved,
This has the effect of making loading work extremely safe and reliable without reducing workpiece transport efficiency, and also makes unloading work very easy.

[Brief explanation of the drawing]

Figure 1? Fig. 5 shows a trolley transport head according to an embodiment of the present invention, Fig. 1 is a flat curved view showing its overall arrangement, and Fig. 2 shows a part of the trolley hanger of the above embodiment.
Figure 3 is its side view, Figure 4 is the loading of the above embodiment,
A plan view of the unloading station and bushing portion, and FIG. 5 is a side view thereof. 1...Trolley conveyor, 4...Toro') body,
5... Trolley hanger, 10d... Fork part,
15a... First direction changing means (first 180° reversing device), 16a... Second direction changing means (first 90° reversing device), 23... Loading lifter, 24... Lifter for unloading, 27...butsusha (air cylinder). Patent applicant: Toyo Kogyo Co., Ltd.

Claims (1)

[Claims] (1) A trolley conveyor is provided that constantly moves a large number of trolley hangers in one direction, and each of the trolley hangers has a bifurcated fork portion for receiving goods, and this is arranged around an axis perpendicular to one trolley body of the trolley conveyor. A loading lifter and an unloading lifter are respectively disposed at predetermined positions below the trolley conveyor, and the trolley conveyor is placed on the upstream side of the conveyor and between the two lifters. A first direction changing means is disposed for rotating the trolley hanger so that its fork portion faces forward, and a trolley hanger is arranged on the upstream side of the conveyor from the unloading lifter so that its fork portion faces backward. A second direction changing means for rotating the cargo lifter is disposed near the load lifter, and receives an approach detection signal of the trolley hanger and rotates the trolley hanger in the forward direction so that its fork portion is directly above the load lifter. A trolley transport device characterized by having a movable button arranged therein.