JPS61178305A - Supply system for plate piece - Google Patents

Abstract

PURPOSE:To provide an apparatus which can facilitate supplement of raw material, reduce loss time and be suitable for producing many kinds and medium amount of works by disposing an entry/delivery station at the same level with a rack having the maximum frequency in use in a system for supplying plate piece to a sheet metal processing line. CONSTITUTION:Storing racks 16a-16e are set in such a manner that the lower storing rack stores raw materials having higher frequency in use. Floor surfaces 5, 9 are set in such a manner that the height of the rack 16e having the maximum frequency in use is same as that of a carry-out device 34 to a fork lift 6 and a conveyer table 11. In this arrangement, plate pieces W are stored in the respective racks 16a-16e by the fork lift 6, and delivered at need by a delivery lifter 4. At this time, as the height of the lifter is in accord with that of the rack having the maximum frequency in used, plate pieces can be supplied and delivered with a small amount of movement of lifters 3, 4 to improve work efficiency. Thus, an apparatus suitable for many kinds and medium amount of works can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a supply system for plate materials, and more particularly to a system for supplying raw material plates to a sheet metal processing line in which a punch press machine, a shearing machine, etc. are installed in parallel.

BACKGROUND OF THE INVENTION A flexible manufacturing system (FMS) can be easily configured on a sheet metal processing line that includes a punch press machine, shearing machine, etc., as described above. Board materials must also be supplied with different thicknesses, materials, sizes, etc., depending on the intended product.

Automated warehouses are known as equipment that can store different materials and release any material at any time.
Unless automated warehouses are incorporated into a system for completely unmanned operation for high-mix, low-volume production, managing the inventory, quantity, and warehousing and retrieval of a large number of shelves is rather complicated, and is not suitable for systems with high-mix, medium-volume production or higher. If workers are required to frequently replenish and store materials into each shelf, the benefits are rather halved, and disadvantages such as the large site area become relatively significant.

In other words, in supply equipment for systems that handle high-mix, medium-volume production or higher, the replenishment work can be easily performed, taking into consideration the unavoidable replenishment of materials by workers (forklifts, conveyors, etc.). Furthermore, there is a need for equipment that does not cause delays in the delivery of sheet materials to the sheet metal processing line due to this work.

Problems to be Solved by the Invention The present invention satisfies the above-mentioned requirements and provides a plate supply system suitable for use in a multi-product, medium-volume production line.

Means for Solving the Problems In order to solve the above problems, the structure of the present invention consists of a stocker main body having a plurality of shelves, and a storage lifter and a storage lifter disposed on both sides of the stocker main body. The board material supply system includes a carry-in stay/con for board materials to the warehousing lifter and a board material carrying-out station from the warehousing lifter at the same height as any of the above-mentioned shelves, and a station for carrying the board materials from the warehouse lifter. The shelves are set as storage shelves for the most frequently used board materials.

Example Examples will be described below based on the drawings.

Fig. 1 is a side view of the board material supply system according to the present invention, and Fig. 2 is a plan view. ) and the warehousing riffs provided on both the front and back sides of the stocker body (2). -+31 and a lifter for unloading (4), the floor surface (5) on the side of the lifter for loading (3) is made into a loading station for plate material W by a forklift (6), etc., and the lifter for unloading (4) On the floor surface (9) on the side, there is a receiving case for the board materials to be carried out from the lifter (4).
A conveyor table (11) is installed as a cheese joint.

The stocker main body (2) has chain conveyors (15) arranged in five upper and lower stages within a framework (■4) assembled into a tower shape with pillars (12) and cross beams (13). Storage shelves for different types of board materials W (16a
) to (16e). Each board material W is palletized (
P) placed on the storage shelves (], 6a) to (1
6e). (18) is a pallet (P) installed above each storage shelf (16a) to (16e)
The guide plate (19) is a drive shaft that connects one sprocket (21) of each chain conveyor (15) in a skewered manner, and a motor (not shown) is connected to the drive shaft (one). (22) is the other sprocket of each chain conveyor (15).

As described above, each storage shelf (16a) to (16e) on the stocker main body (2) can independently transport the plate material W back and forth, but the framework (14) of the main body (2)
A loading lifter (3) and a loading lifter (4) that move up and down along the stocker body (2) are provided in the following manner at the front and rear of the stocker body (2).

In other words, the lifter for entering the warehouse (3) and the lifter for leaving the warehouse (4)
) have the same structure, so the same structural parts are given the same numbers and explained, each lifter +31 (4+ is the first
．． 3. As shown in Figure 3, a chain conveyor device (25) similar to each of the storage shelves (16a) to (16e) is provided on a known pantograph-like jack-up device (24) using a hydraulic cylinder (23). By the pair of rollers (26) attached to both sides of the chain conveyor device (25) engaging and rotating with the pillars (12a) and (12b) standing upright at the front and rear extending positions of the framework (14), , the chain converter device (25') moves up and down vertically along the stocker body (2), and the lifter +3
By swinging the + +41 in the left-right direction in Figure 1, the distance (d) between each storage shelf (1'6a) to (16'e) and the chain hair device (25) can be wide open or fluctuated. There is no fear that this will hinder the transfer of the plate material W.

(27) is a kite plate of a pallet (P) installed on the upper side of the conveyor device (25), (28) is a drive shaft connecting one sprocket (29) of each hanging chain in a skewer shape; A motor (31) is connected to the drive shaft (28). (32) is the other sprocket.

Next, the conveyor table (11) will be explained.
As mentioned above, the conveyor table (11) is provided on the floor surface (9) on the side of the delivery lifter (4), and the height of the conveyor surface (1, 13') is higher than that of the lowest storage shelf. (1
Chain conveyor (33) set at the same height as 6e)
) and a magnetic temporary phase separator (34) that moves up and down the conveyor surface (lla) between the chain conveyor (33).
Figure 2).

The magnetic head (34a) of the plate material separation device (34) is moved from the raised state shown by the solid line in FIG. 1 to the chain line position sunk below the conveyor surface (11a) by means of a lifting and moving device (not shown). The plate material W is taken out onto the conveyor table (11) after it is in the position indicated by the chain line.

(35) is the guide plate of pallet (P) provided on both sides, (
Reference numeral 36) denotes a drive shaft to which one sprocket (37) of each chain conveyor (33) is connected in a skewered manner, and a motor (38) is operatively connected to the drive shaft (36).

(39) is the other sprocket.

A known loader device (41) is installed on this conveyor table (11) to communicate with a sheet metal processing line (not shown).The conveyor table (11) is equipped with a known loader device (41) that communicates with a sheet metal processing line (not shown). The above separation device (34)
The end portions are separated by
1) and transported to the sheet metal processing line.

Each of the above-mentioned storage shelves (16a) to (16e) is set to store a type of plate material W that is used more frequently in the lower tiers.
e) In other words, the shelf (16e) whose height is the same as the height at which the plate material is carried in by the forklift (6) or other conveyor device, etc. and the height at which the plate material is carried out to the conveyor table (11) is the one that is used most frequently. It is set as a storage shelf for plate materials W of high quality.

Hereinafter, the operation of the plate material supply system of the above embodiment will be explained.

That is, first, prior to the operation of the system, five types of raw materials W (for example, different thicknesses, sizes, etc.) to be used in the processing line are placed on the floor surface (5) of the loading station.
from each storage shelf (16a”) using a forklift (6).
1 to (16e), but at that time, as mentioned above, the types of plate materials W that are frequently used in the processing line are
The items are stored in order from the lower shelf to the upper shelf. In other words, specifically, the most frequently used plate material W is the lifter for warehousing (
3) in the lowest position shown in Figure 1, transfer it from the forklift (6) onto the chain conveyor device (25) of the warehousing lifter (3), and then move it from above the chain conveyor device (25). , are transferred to the lowest storage shelf (16e) by driving the respective conveyors (25) (15),
The second most frequently used plate material W is once transferred from the forklift (6) onto the warehousing lifter (3) at the lowest position, then moved up the warehousing lifter (3) one step and transferred to the same conveyor ( 25) and the conveyor (15) of the storage shelf (16d).
), and by repeating almost the same operation, the third most frequently used plate material W is transferred to the third storage shelf (16C1), and the fourth most frequently used plate material W is transferred to the fourth storage shelf (16C1). The least frequently used plate material W is stored in the uppermost storage shelf (1'6b) and the uppermost storage shelf (16a).

Then, after the above preparations are completed, the sheet metal processing line starts operating, and the unloading lifter f4+, conveyor table (11), loader device (41), etc. are operated in order to follow the preset production program order. Accordingly, the different types of plate materials W are supplied to the processing line, and at this time, the frequently used plate materials W are stored on lower shelves closer to the carry-out station (conveyor table full) (11). Therefore, when changing the type of supplied plate material, or when replenishing new plate material W when the plate material W on the conveyor table (11) is exhausted, please do the following to streamline the work. It can be done accurately and quickly.

In other words, each sheet material W is unloaded using the above-mentioned warehousing lifter (
3) is used to perform the reverse operation of storage using the unloading lifter (
4), the plate materials W on the first storage shelf (16e), which are used frequently and require replenishment most frequently from the outside, are stored on the conveyor table (11). Even if the supply is exhausted, the warehousing lifter (
3) and the unloading lifter (4) are both in the lowest position, and the empty pallet (P) is placed on the conveyor table (11) so that its conveying surface extends horizontally in a substantially straight line. Exiting lifter (4LL 12th storage shelf (1)
6e) to the warehousing lifter (3), and on the warehousing lifter (3), the new material W is loaded onto the empty pallet l-tPi using a forklift (6), etc. Move the fully loaded pallet (P) again on the conveying surface extending in a straight line horizontally and immediately (without lifting or lowering the lifts (3) and (4)) onto the conveyor table (11). This reduces the loss time (waiting time during sheet metal processing) when the conveyor table (11) is empty.

Similarly, for the plate materials W that are used less frequently, the pallets fP pass through the storage shelves (16a') to (16e) between the forklift (6) position as the warehousing station and the conveyor table (11) as the unloading station. )
Since the transfer path is set to a short distance for frequently used plate materials (in other words, a path where the lifter (31 (4)) moves less), on average, the idle time (loss time) on the conveyor table (11') is It will be shortened.

In addition, instead of the above-mentioned operation, for example, after the most frequently used plate material W on the conveyor table (11) is exhausted, or after a predetermined number of the most frequently used plate material W has been supplied,
Once the pallet (P) of the most frequently used board material W is stored on the storage shelf (16
e'), then return to the storage shelf (16a) of the second and higher stages.
When unloading other material plates H from ~(16d) onto the conveyor table (11), the frequently used plates are stored in lower storage shelves where the lifting distance of the lifter (4) is short. As a result, the idle time on the conveyor table (11) is reduced.

Loading onto the warehousing lifter (3) using a forklift (6), etc., and warehousing of plate materials by raising and lowering the lifter (3) are carried out in the same manner.
3), the forklift (6) is stopped for a long time in the lowest position, which is the position where it can be loaded by the forklift (6), etc., and the revenue warehouse lifter (3) is not stopped in the lowest position. The waiting time for loading etc. will be shortened.

In addition, as another example, as shown in FIG.
A lifter (3) for entering and exiting the warehouse is formed in the pit (42).
) (If 41 is provided, the highest storage shelf (16a
) At the same height as the loading/unloading station (forklift) + 6) (conveyor table) (11) is installed, and the uppermost storage shelf (16a) is set as the storage shelf for the most frequently used board materials, If the storage shelves (16b) to (16e) are set to accommodate less frequently used plate materials, the same shortening time as described above can be achieved.

The pit depth is set to 4, which is the intermediate depth of the above two embodiments, and the uppermost and lowest storage shelves (1) of the stonker body (2) are
6a) Any storage shelf (16b) other than (16e)
(16C1) Set the height to the loading/unloading station height,
The same applies when the storage shelf is set as the storage shelf for the most frequently used board material.

Further, of course, the number of storage shelves may be any number other than five, and the lifter for loading and unloading may also be an elevator device other than the above-mentioned jack amplifier device.

Effects of the Invention As is clear from the above explanation, the plate supply system according to the present invention is suitable for use in a high-mix, medium-volume production line, and allows for easy replenishment of materials by an operator (forklift, conveyor, etc.). , it is possible to reduce the loss time in supplying plate materials as much as possible due to this work.

[Brief explanation of drawings]

FIG. 1 is a side view of the plate material supply system, FIG. 2 is a plan view thereof, FIG. 3 is a front view of the loading/unloading lifter, and FIG. 4 is a schematic side view showing another embodiment. (2) Stocker body (3) Loading lifter (4) Loading lifter (6) Forklift (loading station) (11) Conveyor table (loading station) (16a) to (16e)... Storage shelf W... Board material

Claims (1)

[Claims] A stocker main body having a plurality of shelves; For warehousing arranged on both sides of the stocker body A plate consisting of a lifter and a lifter for shipping supply system, wherein any of the above-mentioned shelves to the loading lifter at the same height as the other step. Board loading station and unloading lift A station is set up to carry out plate materials from the At the same time, the shelves at the relevant height are made of the most frequently used board material. A board material characterized by being set as a storage shelf for supply system.