JPS625854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic unloading device that loads, for example, molded green tires onto a trolley and sequentially transports them to the next process. Conventionally, as a method for conveying a molded green tire to an inner and outer surface coating device, for example, a trolley conveyor, a belt conveyor, a roller conveyor, a conveyor cart, etc. are generally used.

However, the above-mentioned trolley conveyor and belt conveyor have high equipment costs, and in order to convey the molded green tires to these facilities, if the green tires are conveyed sequentially from each molding machine, the green tires are transferred after the inner and outer surface coating device. There was a problem that this required sorting work by size, resulting in poor productivity and workability.

In addition, belt conveyors and roller conveyors are unfavorable in terms of quality maintenance because green tires are deformed if they are brought into close contact with each other or left on the conveyor for a long time.

On the other hand, regarding the trolley method, raw tires are used as a trolley.
Since ~20 bottles are loaded and transported to the interior and exterior coating equipment, there is no need for the sorting work in the later process as mentioned above, but the equipment that unloads them from the trolley cannot be automated and relies on manual labor. The reason for this is that the nature of raw tires is that they tend to stick together and deform easily, making automation difficult. It is used for raw tire transportation vehicles because it has a good hammock-style storage method that conforms to its shape.

However, the above-mentioned conventional green tire transport vehicle carries several green tires on one hammock, and is equipped with a partition bar to prevent each green tire from falling over. It was difficult to develop equipment to automatically unload products using a transport vehicle.

This invention was devised by focusing on the conventional problems, and its purpose is to automatically unload the transported objects loaded on the cart frame from the loading cart body, and to Labor-saving is achieved by always transporting objects by tilting them in the same direction.
An object of the present invention is to provide an automatic unloading device that can carry out conveyance work reliably and efficiently.

In order to achieve the above-mentioned object, the present invention provides a partition plate on a truck frame for partitioning a plurality of objects to be transported in a direction perpendicular to the running direction of the cart, and a shape of the object to be transported between each partition plate. A loading cart main body is provided with a band-like body whose position can be adjusted to follow, and the conveyed object loaded on the band-like body is pivotably supported at one end to a frame, and a guide roller is provided at the other end. a kicking device for pushing out from the side of the loading truck main body using a plurality of dogleg-shaped arms; a truck transfer and fixing device for pulling the loading truck main body into the kicking device and positioning it at a predetermined position; The gist is that it consists of a conveying device that overturns the kicked-out conveyed object in a fixed direction and conveys it to the next process.

Embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 shows a schematic side view of an automatic unloading device embodying the present invention.
, a kicking device Y disposed perpendicularly to the trolley guide rail 1, and a conveyance device Z that overturns the conveyed object W such as a green tire in a certain direction and conveys it to the next process. has been done.

As shown in FIGS. 2 and 3, the loading truck main body X on which the objects W to be transported such as green tires are loaded has fixed wheels 3a running along the truck guide rails 1.
A plurality of corner frames 7a, 7b (four in this embodiment) of different heights are erected on a truck frame 5 having movable wheels 3b. A plurality of pipes 9a and 9b (in this embodiment, two pipes are provided on the left and right sides, but the invention is not limited to this) are installed at predetermined intervals along the longitudinal direction of the pipe. Further, 11 is a reinforcing pipe for the corner frames 7a, 7b, and can also be used as a handrail.

Between the corner frames 7a, 7a, 7b, and 7b in the longitudinal direction of the loading truck body X, a plurality of partition members 13 (in this embodiment It is composed of six upper and lower partition members 13.The partition members 13 are
(hereinafter referred to as partition plates 13) are provided, and each partition plate 1
A strip 15 such as a hammock cloth is provided between the belts 3 and 3 so that the shape of the transported object W can be followed.

Each of the partition plates 13 has corner frames 7a and 7.
Although the partition plate 13 is fixed to the angle member 17 installed between the parts W, it can be configured to be detachable.
The interval can be adjusted. In addition, the strip 1
5 are provided on the upper and lower sides, and are configured so that a total of 10 objects W to be transported on the upper and lower sides can be placed on one loading cart main body X. However, the structure is not limited to this. If the number of partition plates 13 and strips 15 is increased by enlarging the shape of 5, the number of objects W to be carried can also be increased.

Since the loading truck main body
When the transported object W is carried onto the belt-shaped body 15 between the
At the same time as rolling on the belt-like body 15, the belt-like body 15 follows the shape of the object W to be transported (circular in this embodiment since it is a green tire) and supports the weight of the object W to be transported. In addition, when the conveyed object W in this embodiment is a green tire, the bead or shoulder of the green tire comes into contact with the partition plate 13, and the green tire is tilted as shown in FIG. Since the green tires are partitioned by the partition plate 13, the green tires do not come into contact with each other.

Next, the kicking device Y is shown in FIGS. 1 and 4.
As shown in FIG. 5, this kicking device Y is installed on one side of the bogie guide rail 1 and in a direction perpendicular to the bogie guide rail 1, and this kicking device Y has a corner frame 19 that is slightly higher than the loading bogie body X; The frame is constituted by a cross frame 21 which has almost the same length as the loading truck main body X and is made of an inverted U-shaped lightweight channel. A shaft 23 is installed at the tip of the cross frame 21, and one end of a plurality of dogleg-shaped arms 27 is pivotally supported on the shaft 23 via bearings 25 so as to be able to swing up and down. The number of arms 27 corresponds to the number of objects W to be transported loaded on the loading cart main body X, and in this embodiment, five arms 27 are provided in each of the upper and lower stages at a predetermined interval. ing. In addition, each partition plate 13 of the trolley X fixed by the trolley moving and fixing device D
The arm 27 is provided at a position in the middle thereof.

One end of a swinging arm 29 for extrusion is rotatably connected to the tip of each arm 27 via a pin 28, and a guide roller 31 is provided at the other end of each swinging arm 29. There is. A buffer spring 33 is interposed between the vicinity of the tip of each arm 27 and the tip of the swinging arm 29 to constantly urge the guide roller 31 outward. When pushing out the transported object W loaded on the main body This is prevented by a buffering effect. Air cylinders 35 for rotating each arm 27 counterclockwise are provided between the cross frame 21 and the rear end side of each arm 27, and the rear ends of the air cylinders 35 are connected to the cross frame 21. The piston rod 37 is fixed to the frame 21, and the tip of the piston rod 37 is connected to each arm 27.

Therefore, when the working pressure fluid is discharged into the extension side pressure chamber of the air cylinder 35, the piston rod 37 extends and the arm 27 rotates counterclockwise, causing the swing arm 29 and guide attached to the tip thereof to rotate. The conveyed object W loaded on the loading truck main body X is kicked out to the conveying device Z side via the rollers 31.

Further, when the working pressure fluid is discharged into the compression side pressure chamber of the air cylinder 35, the piston rod 37 contracts and the arm 27 returns to the position shown in FIG.

Next, the cart movement and fixing device D provided at the lower part of the kicking device Y is disposed at the bottom of both sides of the corner frame 19 and parallel to the cart guide rail 1, as shown in FIGS. 4 and 5. ing.

First, the stopper device 39 in the bogie fixing device D
Two stopper members 41a and 41b for positioning the front and rear ends of the bogie frame 5 are rotatably attached to the corner frame 19 via pins 43, and stoppers are provided at the free ends of the stopper members 41a and 41b. Cylinders 45a, 45 that make the tips of the members 41a, 41b protrude and retract from the bogie guide rail 1
Piston rods 47a and 47b of b are connected.

The strokes of the piston rods 47a and 47b are such that, when extended, the tips of the stopper members 41a and 41b protrude from the bogie guide rail 1 to position the front and rear ends of the bogie frame 5, and when retracted, they retreat with respect to the bogie guide rail 1 and move the bogie. It is set up so that it can be moved.

Further, the trolley transfer device 49 includes the corner frame 19
A motorized reduction gear 51 is installed on one side of the motor, and a sprocket 55 is attached to an output shaft 53 of the motorized reduction gear 51. Further, on both sides of the corner frame 19, shafts 59a, 59 are provided with sprockets 57a, 57b, 57c at both ends and one end.
b is rotatably arranged via bearings 61a and 61b, and a transmission chain 63 is routed around the sprocket 55 of the output shaft 53 and the sprocket 57a provided on one shaft 61a.
Also, both shafts 59a, 59 sandwiching the corner frame 19
sprocket 57b attached to the tip side of b,
An endless chain 65 is looped around 57c, and an attachment 67 is attached to the chain 65 to hook the tip side of the loading truck body X and move it. The attachment 67 always waits at the horizontal part of the shaft center of the shafts 59a and 59b, and after unloading all the objects W to be transported from the loading trolley main body X and making it empty, the motorized reduction gear 51
When the chain 65 rotates, the attachment 67 sends out the loading truck main body X from the kicking device Y to the outside.

Incidentally, at the same time as the empty loading vehicle body X is transferred, a loading vehicle body X, which is connected to the loading vehicle body X by a pin or the like and which loads the object W to be transported, is sent.

Next, the conveying device Z is installed parallel to the kicking device Y, as shown in FIGS. 1 and 6, and this conveying device Z has square frame main bodies 69a,
Frames 71 and 73 are provided at the top and bottom of b at a predetermined inclination angle (approximately 13 degrees in this embodiment) toward the discharge side of the transported object W (rightward in FIG. 6).

The lower frame 71 has a frame body 69a.
The upper frame 73 is fixed to a support plate 74 erected above the frame body 69b.
It is supported by a bearing 75 attached to the side wall of the housing and a shaft 77 rotatably supported by the bearing 75. Dry pulleys 81 and 83 are rotatably supported via bearings 79 on one end side (left end side in FIG. 6) of the frames 71 and 73 mounted at an angle, and on the other end side (left end side in FIG. 6). Tail pulleys 85 and 87 are rotatably supported on the right end side).

Conveyor belts 89, 91 are stretched over the dry pulleys 81, 83 and tail pulleys 85, 87, respectively, and the conveyor belts 89, 91 move from the left end to the right end in FIG. Similarly, it has an inclination of approximately 13 degrees.

Furthermore, motorized reducers 93 are installed on the frames 71 and 73, respectively.
3, the output shaft 95 and dry pulleys 81, 83 are
They are interlocked via sprockets 97, 99 and chain 101.

A shutter 107 for conveyed objects W is attached to the distal ends of the dry pulleys 81 and 83 via conveyor frames 103 and 105.

A cylinder 109 is attached to the side wall of the frame body 69b, and rotates the upper conveyor belt 91 as shown by the dashed line in FIG.
The rear end of an arm 115 is attached to the tip of the piston rod 111 of the cylinder 109 via a pin 113. The tip of the arm 115 is fixed to the frame 73 on the upper stage side, so that when the cylinder 109 expands and contracts, the frame 73 rotates about 30 degrees about the shaft 77 of the bearing 75 attached to the side wall of the frame body 69b. However, at the same time, the conveyor belt 91 also rotates. The reason why the transport belt 91 on the upper stage side is rotated by about 30 degrees is that when kicking out the transported object W from the loading truck body X to the transport device Z, the transported object W is rotated by about 30 degrees. It is designed to prevent damage or deformation from coming into contact with the conveyor frame 105, etc. of the conveyor frame 105, etc.
This is not necessary in the case of the stage conveyor belt 89.

Further, the guides 117 erected on the frames 71 and 73 are for guiding the transported objects W kicked out from the loading truck main body The conveyed object W is always turned sideways in a fixed direction and carried out.

Next, the effect will be explained.

First, the loading truck main body X loaded with objects W to be transported such as green tires is transferred along the truck guide rail 1 between the kicking device Y and the conveying device Z, and is stopped at a predetermined position by the stopper device. 39. Next, when the upper air cylinder 35 of the kicking device Z is extended, the upper arm 27 rotates counterclockwise about the shaft 23,
A guide roller 31 attached to the tip of the arm 27 via a swing arm 29 kicks out the plurality of objects W on the loading truck main body X onto the upper conveyor belt 91 of the conveyor Z.

On the other hand, the upper conveyor belt 91 of the conveyor Z
is driven toward the unloading side by the motorized speed reducer 93 at the stage when the loading cart body X is transferred and fixed at a predetermined position. Therefore, when the conveyed object W is kicked out from a direction perpendicular to the transport direction of the conveyor belt 91, the conveyed object W contacts the guide 117 and at the same time its lower end is scooped up and falls sideways in a certain direction, resulting in this state. This is carried out to an inner and outer surface coating device (not shown).

After all of the objects W to be transported on the upper stage are carried out in this manner, the motor-equipped reduction gear 93 on the upper stage stops once, and the conveyor belt 91 also stops.

Next, before the lower transported object W is kicked out,
The cylinder 109 operates, and the upper conveyor belt 89 is lifted upward. Then, the conveyor belt 91 is operated by the drive of the motor-equipped speed reducer 93 on the lower side, and the conveyed object W on the lower side is kicked out and carried out by the conveyor belt 91 in the same manner as described above.

In addition, although the above-mentioned embodiment described the automatic unloading device for green tires, it can also be applied to objects W to be transported such as thick disks, circular wood, paper, metal materials, etc.

As described above, the present invention provides a partition plate on a truck frame that partitions a plurality of objects to be transported in a direction perpendicular to the running direction of the truck, and also provides a structure that follows the shape of the object to be transported between each partition plate. A loading trolley body is provided with a belt-shaped body whose position can be adjusted, and the transported objects loaded on the belt-shaped body are pivotably supported at one end to a frame and have a guide roller at the other end. a kicking device that pushes out from the side of the loading truck main body using a plurality of arms shaped like a letter; a truck transfer fixing device that pulls the loading truck main body into the kicking device and positions it at a predetermined position; and the kicking device. The delivered object is turned over in a certain direction, and
Because it is configured with a transport device that transports it to the next process,
This provides the following effects.

(1) The conventional method of unloading the transported items manually has been automated, which saves labor and improves transport capacity.

(2) When people were unloading objects, they sometimes misplaced the objects upwards or downwards, but with automation, they can always be thrown in the same direction, which makes it easier for the next process. It is possible to improve the work efficiency and to significantly reduce the number of failures of transported objects.

(3) The loading truck body equipped with a partition plate eliminates the close contact between transported objects, which can be expected to reduce deformation and damage to transported objects.

(4) In addition, the loading truck body is provided with partition plates that partition multiple objects to be transported in a direction perpendicular to the traveling direction of the cart, and the position between each partition plate can be adjusted to follow the shape of the objects to be transported. Since the belt-like body is provided with a belt-shaped body, even if the conveyed object is a green tire, the green tires will not come into close contact with each other or be deformed, which will affect the quality and accuracy, and the product accuracy will always be maintained. It can be transported and unloaded.

(5) Furthermore, the conveyed object is kicked out from multiple dogleg-shaped arms, one end of which is swingably supported on the frame and the other end equipped with a guide roller, so that the object is not damaged and is easily It is possible to reliably kick out the conveyed object while holding it.

[Brief explanation of the drawing]

Fig. 1 is a front view of an automatic unloading device embodying the present invention, Figs. 2 and 3 are side and front views of the main body of the loading cart, and Figs. 4 and 5 are plan views of the kicking device. Side view, FIG. 6 is a side view of the trolley moving and fixing device. 5... Truck frame, 13... Partition plate, 15... Band-shaped body, X... Loading truck body, Y... Kicking device, Z...
Conveyance device, W...Transferred object, D...Dolly moving and fixing device.

Claims (1)

[Claims] 1. A partition plate is provided on the cart frame to partition a plurality of objects to be transported in a direction perpendicular to the running direction of the cart, and a belt-shaped body whose position can be adjusted to follow the shape of the object to be transported is provided between each partition plate. The provided loading cart body and the objects to be transported loaded on the strip-shaped body are supported by a plurality of dogleg-shaped arms, one end of which is pivotably supported on a frame, and the other end of which is provided with a guide roller. a kicking device that pushes out the loading truck body from the side; a truck transfer and fixing device that pulls the loading truck body into the kicking device and positions it at a predetermined position; 1. An automatic unloading device characterized by comprising a conveying device that turns the device horizontally in the direction of , and conveys the device to the next process.