JP3482293B2 - Work storage device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work storage device for aligning and storing a large number of works in a factory or a warehouse. 2. Description of the Related Art For example, in an automobile assembly line, there is a process of mounting an exhaust pipe on a vehicle body conveyed by a hanger conveyor. For this purpose, a large number of exhaust pipes are stored on the line side, and the exhaust pipes are sequentially taken out and assembled to the vehicle body. Conventionally, as means for storing a large number of exhaust pipes on the line side, as shown in FIG. 6, the length from the work input side A to the work extraction side B becomes shorter from the lower stage to the upper stage. A plurality of tiered storage shelves 10a to 10c inclined downward from the work input side A to the work removal side B are installed on the line side, and the work W conveyed by the hoist 11 is operated by the operator. Each storage shelf 10a to 10 from the work input side A
The workpiece was taken out from the work take-out side B opposite to the work take-in side A. [0004] The conventional storage shelf 10 described above.
a to 10b have different lengths of the storage shelves 10a to 10b in the respective stages, so that the storage shelves 10a in the respective stages are naturally different.
The number of stored works W is different. For this reason, when production fluctuates, there is a limit to replacing the work storage number with storage shelves corresponding to the production situation or increasing the number of work storages due to storage space constraints. Was. Further, since the storage shelves 10a to 10b are in the form of tiers and the work input side A and the work takeout side B are stepped, the workability of loading and unloading the work becomes worse toward the upper stage. There was a problem. An object of the present invention is to solve the above-mentioned conventional problems.
That is, a large number of works can be stored, and workability of loading and unloading works has been improved. [0007] Disclosed in order to achieve the means] in order to achieve the above object of the present invention configured is arranged in a plurality of upper and lower stages, each circulating in a horizontal plane towards the workpiece supplying side to the work extraction side
Chain conveyor shelves with rollers, all of the same length ,
A work transfer member that is arranged on at least the work input side of each of the stages so as to be able to be pulled out and withdrawn in the front-rear direction in parallel with the chain conveyor with rollers and that transfers a work onto the chain conveyor with rollers; A large number of workpieces are arranged at predetermined intervals along the traveling direction of the chain conveyor with rollers on the side of the chain conveyor shelf with rollers, and the workpieces sequentially conveyed by the chain conveyor with rollers toward the work take-out side are sequentially in predetermined positions. A stopper device for stopping and canceling the transfer of the work by contacting the work, and detecting and detecting the work transferred to each of the predetermined positions.
Stopper device for stopping and releasing the transport of the workpiece
Control, and supply notification and low when the number of work
Controlled when the workpieces on the chain conveyor shelves are fully stored
The apparatus is provided with a work presence sensor for transmitting a signal to the apparatus to stop the operation, and an operation switch for selectively operating and stopping the operation of the chain conveyor shelves with rollers at each stage. Embodiments of the present invention will be described with reference to the drawings. First, the outline of the present invention will be described with reference to FIG. Workpiece take-out side B from work input side A to frame 1
Each stage orbiting in a horizontal plane toward the surface is arranged with a plurality of upper and lower stages of chain conveyor shelves 2a with rollers of the same length ,
The work transfer member 3 is disposed at least on the work input side A so as to be able to be pulled out and pulled in the front-rear direction in parallel with the chain conveyor shelf 2a with rollers, and the work W conveyed by the hoist 11 is drawn out by the worker. The work W is placed on the transfer member 3, the work transfer member 3 is pulled in, the work W is transferred onto the chain conveyor shelf 2 a with rollers, and the work W is moved toward the work removal side B by the traveling movement of the chain conveyor shelf 2 a with rollers. A required number of works W are sequentially conveyed and arranged and stored on a chain conveyor shelf 2a with rollers. Next, the specific structure of the present invention will be described with reference to FIGS.
It will be explained by. Reference numeral 1 denotes a frame, on which a pair of left and right chain conveyor shelves 2a and 2b with rollers, which circulate in a horizontal plane from a work input side A to a work takeout side B, are arranged in a plurality of upper and lower stages. The chain conveyor shelves with rollers 2a and 2b have the same length at each stage as shown in FIG. 5, and have a configuration in which rollers 2c are rotatably mounted on the chain as shown in FIG.
The driving motor 6 and the rotation of the driving motor 6 are supplied to the chain conveyor shelves 2a and 2b with rollers so that the chain conveyor shelves 2a and 2b with rollers 2a and 2b operate independently. A well-known drive mechanism using a drive shaft or a sprocket for transmitting the drive shaft is provided. The work W is loaded at least on the work input side A of each stage with the roller chain conveyor shelves 2a, 2a.
The work transfer member 3 to be transferred onto the b is arranged so as to be able to be pulled out and pulled in the front-rear direction in parallel with the chain conveyor shelves with rollers 2a, 2b. As shown in FIG. 3, the work transfer member 3 has a work mounting surface 3a on which a work W is mounted between the chain conveyor shelves with rollers 2a and 2b.
b guides the chain conveyor shelves with rollers 2a, 2b so as to be able to be pulled out and pulled in the front-rear direction in parallel with the chain conveyor shelves 2a and 2b. Note that a work take-out member 7 having the same configuration as the work transfer member 3 may be provided on the work take-out side B. The roller-conveying chain conveyor shelves 2a and 2b are arranged at the side of the roller-conveying chain conveyer shelves 2a and 2b.
A large number of stopper devices 4a, 4b and work presence sensors 5a, 5b are arranged at a predetermined interval along the traveling direction of a, 2b. The stopper devices 4a and 4b have a structure in which a stopper shaft can be moved up and down by an actuator such as a cylinder so that the stopper shaft comes into contact with a work W conveyed on the chain conveyor shelves 2a and 2b with rollers. The work presence sensors 5a and 5b are disposed at the respective stopper devices 4a and 4b, and detect the presence of the work W whose movement has been stopped by the stopper devices 4a and 4b. The frame 1 is provided with operation switches 8 for selectively operating and stopping the operation of the chain conveyor shelves 2a and 2b with rollers at each stage. The frame 1 provided with the above-mentioned device may be of a stationary type installed at a predetermined position, but is of a general type in which a roller 9 is attached to the lower surface of the frame 1 as shown in FIG. It is convenient to be able to. Further, as necessary, two or more groups may be arranged in parallel. Regarding the operation of the present invention having the above configuration,
The description starts from the state where the chain conveyor shelves with rollers 2a and 2b are empty. The operation switch 8 selects the chain conveyor shelves 2a and 2b with rollers for storing the work W to rotate the chain conveyor shelves 2a and 2b with rollers, and pulls out the work transfer member 3 by the cylinder 3c. The work W conveyed by the hoist 11 is placed on the work transfer member 3 pulled out by the operator, and the work transfer member 3 is pulled in by the cylinder 3c. Chain conveyor shelves with rollers 2 circling the upper workpiece W
a and 2b. The chain conveyor shelves with rollers 2a,
The workpiece W transferred onto the workpiece 2b is conveyed to the workpiece take-out side B, and when it reaches the frontmost storage position, it is detected by the workpiece presence sensors 5a and 5b, and the stopper shafts of the stopper devices 4a and 4b are raised, The work W comes into contact with this, stops the transfer of the work W, and stores the work W at the frontmost position. Until the first work W is stored at the frontmost position, the works W are successively loaded and conveyed, and are sequentially stored at the respective predetermined storage positions by the stopper devices 4a and 4b until they are full. Chain conveyor shelves 2a, 2b with rollers
Indicates that the work W is to be stopped at each predetermined storage position.
b, the revolving operation is performed even when the conveyance is stopped. However, since the rollers of the chain conveyor shelves with rollers 2a and 2b are in contact with the workpiece W, the rollers are rotated and stopped. Chain conveyor shelf 2
The chain conveyor shelves with rollers 2a and 2b are rotated by the stopper devices 4a and 4b to move the workpieces W stopped at the respective predetermined storage positions in a state where they are left behind. Chain conveyor shelves 2a, 2b with rollers
When a predetermined number of works W are fully stored on the upper side, the chain conveyor shelves 2a and 2b with rollers become work presence sensors 5a and 5b.
The operation is automatically stopped by the control device according to the full storage confirmation signal from 5b. The work W stored on the chain conveyor shelves 2a and 2b with rollers operates the chain conveyor shelves 2a and 2b with rollers and lowers the stopper shafts of the stopper devices 4a and 4b. Then, the conveyance stop is released, and the workpieces are sequentially taken out from the work take-out side B. still,
At this time, if there is a work take-out member 7 having the same configuration as the work transfer member 3 on the work take-out side B, the work take-out operation can be easily performed. When the number of occupants on the chain conveyor shelves 2a and 2b with rollers is reduced to, for example, four or less by taking out the work W, the work W is notified.
Is supplied and stored by the above-described charging operation. As described above, according to the present invention, since the chain conveyor shelves with rollers of the same length are all arranged in each stage, the work of the work can be compared with the conventional tiered shelf. The number of storages can be greatly increased, and the number of work inputs can be reduced. In addition, the work is placed on a work transfer member that automatically pulls out and retracts on the chain conveyor shelf with rollers, and the work is transferred from this work transfer member. improves. Furthermore, since the work stored on the chain conveyor shelves with rollers can be checked for the presence state by the presence sensor, the supply management can be reliably performed when the number of people is reduced by taking out the work, and the work can be reliably performed. This has the advantage that storage shortage can be prevented.

[Brief description of the drawings] FIG. 1 is a plan view of the apparatus of the present invention. FIG. 2 is a front view of the device of the present invention. FIG. 3 is a plan view of a main part of the apparatus of the present invention. FIG. 4 is a front view of a main part of the apparatus of the present invention. FIG. 5 is a schematic explanatory view of the device of the present invention. FIG. 6 is a side view of a conventional device. [Explanation of symbols] One frame 2a Chain conveyor shelves with rollers 2b Chain conveyor shelf with roller 2c roller 3 Work transfer member 3a Work mounting surface 3b Guide member 3c cylinder 4a Stopper device 4b Stopper device 5a Work presence sensor 5b Work presence sensor 6 Drive motor 7 Work take-out member 8 Operation switch

Claims (1)

(57) [Claims] [Claim 1] Each stage which is arranged in a plurality of upper and lower stages and circulates in a horizontal plane from a work input side to a work takeout side is entirely provided.
Chain conveyor shelves with rollers of the same length, and arranged at least on the work input side of each stage so as to be able to be pulled out and retracted in the front-rear direction in parallel with the chain shelves with rollers, and to place the work on the chain shelves with rollers. A number of workpiece transfer members to be transferred to, and a plurality of rollers are arranged at predetermined intervals along the traveling direction of the chain conveyor with rollers on the side of the chain conveyor with rollers on each stage, and rollers are provided toward the work removal side. A stopper device for stopping and releasing the transfer of the workpiece by sequentially contacting the workpieces sequentially at predetermined positions by the chain conveyor shelf, and detecting the workpiece transported to each of the predetermined positions to detect the workpieces.
The stopper device is controlled to stop and release the transfer of
With replenishment notification and roller when the number of work attendance decreases
Control device when the work on the chain conveyor shelf is full
A work storage device, comprising: a work presence sensor for sending a signal to the conveyor to stop the operation; and an operation switch for selectively operating and stopping the operation of the chain conveyor shelves with rollers at each stage. .