JPH0629081B2 - Storage device for cylindrical products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to cylindrical products, such as roll paper, which are handled in various industries such as papermaking, plastic processing, metal rolling, and printing.
It is related to logistics such as roll film, roll foil, rolling rolls, and printing plate cylinders. It has a high value-added value and is useful in places where deformation of products due to stacking is disliked. The present invention aims to improve the economic effect by providing a storage shelf that does not require power saving, labor saving, safety, and power saving due to effective utilization and speeding of picking, and automation.

(Prior Art) In the prior art, saddles are arranged in a plane, or a step-like shelf is provided, a cylindrical product is placed on the saddle, and they are handled by an overhead traveling crane. No. 8185), or a three-dimensional automatic warehouse is used.

(Problems to be Solved by the Invention) In the logistics field, labor saving, labor saving, and speeding up are demanded for the rationalization of high-mix low-volume production which has been particularly demanded in recent years. The same applies to cylindrical products that do not like deformation due to stacking.

The method of arranging the saddles on a flat surface and arranging the products on it can speed up handling because one item can be taken out by selecting an arbitrary position, but the floor space is used only because the floor surface is used flat. There is a problem that becomes.

In addition, when using a stepped shelf, the space space utilization rate increases compared to the method using a saddle, but it is difficult to automate the product removal from the shelf and there is a problem in labor saving and speeding up. .

Furthermore, when using a three-dimensional automated warehouse, the space space utilization rate is very good, but there is a problem in that it takes time to take out one item and speeds up, and power is used to move the pallets inside the shelves. Therefore, there was a problem that the equipment cost was high.

(Means for solving the problem) A multi-stage shelf is provided to effectively use the space, and the top shelf is installed so that products of various types can be easily picked up at any position. Make it horizontal so that as many as possible can be lined up, and the next shelf below the second is
Each shelf is tilted and the length of each shelf is set to be two more than the number of shelves arranged on the shelf directly above, and one is on the upper side of the inclined shelf and one is on the lower side. A product that moves from the entrance side to the exit side of the inclined shelf while it has a first-in first-out structure that allows the robot crane's hand to be operated from directly above when it is extended and withdrawn from the upper shelf. Is driven by its own weight without the need for power, and is stopped at a fixed position.

(Function) The products stored in this storage rack are classified according to ABC analysis of the data on the type and quantity of the products, and the top end part has different types. However, they can be placed so that the quantity increases as they go down.

This storage rack has a large capacity depending on the number of product types,
It is possible to install multiple variations of medium capacity and small capacity.

Placing as many lines as possible on the top horizontal shelf is effective for the use of space space, and if one row is used, comparing one line at the top line with the line at the top line, the deposition rate is The space utilization rate is about 55% in the former case and about 75% in the latter case when the same is tripled.

In addition, the former requires 6 shelves and the latter requires 4 shelves, which is economically effective for the height of the building and handling equipment such as a robot crane.

However, the deposition rate and space utilization rate referred to here are given by the following equations.

A: The total number when the plane is placed every other level B: The number when the bottom level is set to A by the method of stacking two more than the top level C: Number of bottom shelf D: Number of shelves E: Total number when stacking two more than the top and when the bottom is C The upper part of these storage shelves installed on the floor of the building , A Cartesian type overhead traveling robot crane is installed, and this robot crane separately stores each position of the product on the uppermost stage of each storage shelf stored in the computer and each position of the entrance side and the exit side of the inclined shelf. It is possible to move at the shortest distance along the set work program and perform high-speed handling.

The support shaft of the product grasped by the hand of the robot crane is placed on the fixed saddle in the uppermost horizontal shelf of the storage shelf, but in the inclined shelf, the one of the upper inclined shelves projecting upstream is placed. Can be placed on the rail. The rail is pushed down by the weight of the product and moves to the inclined surface where the support shaft can roll. The speed at which the rail is pushed down is controlled by a variable orifice type oil damper to minimize inertia due to rolling.

The intermediate tilted shelf rail provided adjacent to the upper tilted shelf matches the tilt of the rail of the depressed upper tilted shelf, and enables the transfer of the rolling support shaft.

The rail of the intermediate inclined shelf is formed in a V-shape, and the rolling support shaft crosses over this valley and absorbs inertia due to rolling at the portion of the rising slope, and then stops at the portion of the valley.

Subsequently, depending on the weight of the product, the same operation as in the case of the upper tilted shelf is performed, and the products are transferred to the intermediate tilted shelf sequentially installed on the downstream side.

At the lowermost end of the inclined shelf, the support shaft hits the shock absorber provided on the lower inclined shelf, and after the shock is absorbed, it stops at a fixed position.

If the product is placed on the rail of the middle inclined shelf,
The weight of the product keeps the rail in a fixed position, and at that time, the rolling-down of the upstream product is suppressed at the rear end of the rail.

The products positioned on the lower sloping rack are picked by the robot crane, but the rails of the intermediate sloping rack where the weight of the product has been removed returns to the original position and enables the rolling down of the upstream product. . By repeating the above operation, silent movement and positioning can be performed without using power.

(Examples) The present invention will be described with reference to the examples shown in the drawings.

FIG. 1 is a side view showing an outline of the storage and picking device for this cylindrical product, in which 1 is a Cartesian robot crane and 1a is a hand part. Below the robot crane 1 are a large-capacity storage shelf 2a and a medium-capacity storage shelf 2
b, a small-capacity storage shelf 2c is placed. These storage shelves 2 can be variously combined depending on the number of types of products.

2 and 3 show the horizontal shelf 4 at the top of the storage shelf 2.
3 is a comparative diagram in which the space utilization rate differs depending on the size of the space, and in the case of FIG. 2, there is one product 3 on the horizontal shelf 4, and in the case of FIG. 3, there are six products. In the case of these figures, the comparison is made assuming that the deposition rate is about 3 times, respectively.
The space utilization rate is clearly better as shown in Fig. 3, and it can be seen that the space space of the building is effectively used.

Moreover, the number of steps is smaller in the one shown in FIG. 3, which means that the vertical stroke of the hand portion 1a of the robot crane 1 shown in FIG. 1 becomes smaller, so that the ceiling height of the building can be lowered.

4 to 9 are explanatory views related to the inclined shelf A. The inclined shelf A is made up of three types of upper inclined shelf Aa, intermediate inclined shelf Ab, and lower inclined shelf Ac, each of which is provided in a common frame (not shown).

In FIG. 4, the hand 1a of the robot crane can grab the support shaft 3'of the product 3 and place it on the V-shaped rail 6 of the upper inclined shelf Aa from the direction directly above.

FIG. 5 is a side view at that time. The upper inclined shelf Aa includes a variable orifice type oil damper 10, fixed fulcrums 7 and 8, a swing fulcrum 9, a V-shaped rail 6, the stopper 11,
It is composed of a rear stopper 12.

The V-shaped rail 6 has a front sloped surface 6'and a rear sloped surface 6 ", which form an angle α and an angle β with respect to the horizontal line B. The front sloped surface 6'and the rear sloped surface 6". The intersection is provided at a distance S from the fixed fulcrum 8, and the swing fulcrum 9 is provided substantially at that position. The variable orifice type oil damper 10 has its lower end fixed to a fixed fulcrum 7 and its tip fixed to a swing fulcrum 9. The rod 10b pushes up the rail 6 via the swinging fulcrum 9 by the spring 10a, and the V-shaped rail 6 swings around the fixed fulcrum 8 as a fulcrum and hits the stopper 12 to stop.

FIG. 6 is an explanatory view showing a state in which the product support shaft 3'moves from the upper inclined shelf Aa to the intermediate inclined shelf Ab. The intermediate inclined shelf Ab includes a variable orifice type oil damper 17, fixed fulcrums 14 and 15, a swing fulcrum 16, a V-shaped rail 13,
It is composed of a front stopper 18 and a rear stopper 19.

The V-shaped rail 13 has a front inclined surface 13 'and a rear inclined surface 13 ".
And an angle α and an angle β with respect to the horizontal line B, respectively. The intersection of the front inclined surface 13 ′ and the rear inclined surface 13 ″ is provided at a distance S from the fixed fulcrum 15, and the swing fulcrum 16 is provided at substantially that position.

The variable orifice type oil damper 17 has its lower end fixed to the fixed fulcrum 14 and its tip fixed to the swing fulcrum 16.
The damper lot 17b pushes up the V-shaped rail 13 by the spring 17a via the fulcrum fulcrum 16, and the V-shaped rail 13 oscillates around the fixed fulcrum 15 as a fulcrum and the stopper 1
It hit 9 and stopped.

When the support shaft 3'is now placed on the V-shaped rail 6 of the upper inclined shelf Aa, its gravity causes a rotational moment M to be generated with respect to the fixed fulcrum 8, the variable orifice damper 10 is activated, and the V-shaped rail 6 is operated. Moves gently around the fixed fulcrum 8 as a fulcrum and then stops by hitting the front stopper par 11. At this time, the front inclined surface 6 ′ forms an angle β with the horizontal plane B. The front portion of the V-shaped rail 6 is bifurcated, and the rear portion of the V-shaped rail 13 enters into it, so that the front inclined surface 6 ′ and the rear inclined surface 13 ″ are flush with each other. Therefore, the support shaft 3'rolls downward along the slope of the angle β and is transferred to the intermediate inclined shelf Ab.
The support shaft 3'rolling 3 "moves slightly up the slope 13 'due to inertia, but finally stops almost above the swing fulcrum 16.

The angle α is determined by inertia so that the supporting shaft 3'will not protrude from the slope 13 '.

The support shaft 3'which has been transferred to the intermediate inclined shelf Ab is transferred to the downstream intermediate inclined shelf Ab 'which is provided adjacently by the same operation principle as that of the upper inclined shelf Aa. Move Ab ″ Ab ... to the required number of installed units.

FIG. 7 shows a state diagram at that time. Since the rear end protrusion 13 of the V-shaped rail 13 is protruding above the inclined surface 6'during transfer, the support shaft 3'of the product to be replenished next is prevented from moving downstream.

FIG. 8 shows a state diagram on the upstream side when the inclined shelf A is completely replenished with the product 3.

FIG. 9 is a state diagram at the lowermost downstream end of the inclined shelf A.

'Supporting shaft rolling 3' slopes 13 of the final intermediate portion inclined shelf Ab ⁿ quietly slopes 13 are absorbed inertia per shock Abuzo over bar 21 fixed to the rail 20 provided on the lower inclined shelf Ac ' Is positioned at a fixed position where the slope 20 and the slope 20 intersect. When the robot crane 1 takes out the product 3 right above from this position, the spring 17a causes the V-shaped rail 13 to move farther, and the protrusion 13 is released, and the next product 3 rolls from the upstream side and is transferred. Repeated.

The robot crane 1 used here performs accurate positioning operation and handling operation by computer control, and a commercially available one is used. Further, the variable orifice type oil dampers 10 and 17 and the shock absorber 21 are commercially available ones. When the weight of the cylindrical product is constant, a fixed orifice type damper, an air damper, or a spring can be used instead of the variable orifice type oil damper.

Since the top shelf in the trapezoidal storage shelf is horizontal, the product placed on that shelf is fixed in position, making it easy to select an arbitrary position using the Cartesian robot crane, and extremely high-speed picking of many types is possible. It is possible to take one product.

For the first-in first-out position, incline the racks from the second horizontal stage below the uppermost horizontal rack and incline the length of each rack to one for the upper side and one for the lower side. Since it is a shelf, the positions of the entrance side and the exit side are determined, picking can be performed at any position by the robot crane, and the space space can be effectively used.

Furthermore, by using a plurality of trapezoidal storage shelves with different storage capacities, it is possible to support the storage of even more high-mix low-volume products.

These are high value-added products that dislike deformation due to stacking, and when there are many types, effective use of the building space, speeding of picking, labor saving due to automation, labor saving, safety Has a great effect on

(Effect of the Invention) According to the cylindrical product storage device of the present invention, in the inclined shelf that is a component of the trapezoidal storage shelf, the upper inclined shelf and the intermediate inclined shelf are provided with V-shaped rails and dampers, respectively. Therefore, the individual progressive movement is performed without power without impact, and since it is quietly positioned by the reverse tilt rail and the shock absorber provided on the lower tilt shelf, no special power unit is required and the economic effect is extremely large.

[Brief description of drawings]

FIG. 1 is a side view showing an outline of a storage and picking device for cylindrical products, FIGS. 2 and 3 are explanatory views for comparing space utilization rates of storage shelves, and FIGS. 4 to 9 are It is explanatory drawing which concerns on an inclined shelf. 1 ... Robot crane 2 ... Storage rack 3 ... Cylindrical product 4 ... Horizontal rack 6 ... V-shaped rail 6 '... Front slanted surface 6 "... Rear slanted surface 13 ... V-shaped rail 13' …… Front inclined surface 13 ″ …… Rear inclined surface 13 …… Rear protrusion 10.17 …… Variable orifice type oil damper 21 …… Shock absorber A …… Inclined shelf Aa …… Upper inclined shelf Ab …… Middle part Inclined shelf Ac …… Lower inclined shelf

Claims (1)

[Claims] 1. An inclined storage shelf 2 for cylindrical products,
The one-tiered shelf A comprises one upper tilted shelf Aa, a plurality of middle tilted shelves Ab, and one lower tilted shelf Ac, and the upper tilted shelf Aa has a front tilted surface 6'which normally has a rising slope. It has a V-shaped rail 6 composed of a rear inclined surface 6 ″ and a damper 10, and the middle inclined shelf Ab has a front inclined surface 13 ′ that normally has an ascending slope and an upper inclined shelf Aa at the time of transfer or an adjacent intermediate slope. It has a V-shaped rail 13 and a damper 17, each of which is composed of a rear inclined surface 13 ″ that has the same inclination as the front inclined surfaces 6 ′ and 13 ′ of the shelf Ab, and a rear end protruding portion 13 that protrudes at the time of transfer to suppress movement of the product. However, the lower tilted shelf Ac has a rail 20 and a shock absorber 21 that are tilted in the opposite direction to the tilt of the tilted shelf A.
A storage device for a cylindrical product, comprising: