DE2816182A1 - Plate stack transport system - has additional positioned rail between those supporting transport truck - Google Patents

Abstract

The plate stack transport and storage system uses a transport truck travelling along tracks formed by a pairs of rails and having a number of lifting devices engaging under the stacks and adjustable for height. Between the travel rails (3), which are spaced apart (a), one or more additional travel rails are provided. The distance between all travel rails can be the same, a multiple of this distance (d) being the sum of maximum stack width and a minimum distance (c) between adjacent stacks.

Description

The invention relates to a system for transport and

Storage of stacks of panels with a transport trolley along Roadways, which are formed by pairs of rails, can be moved, and several has lifting elements that grasp the plate stack from below, which by means of a lifting device are adjustable in height.

When handling plate-shaped workpieces, which are usually are handled as a stack of panels, between the individual manufacturing and machining operations such as pressing the plates, dividing on formats, surface grinding, surface coating and division in intermediate and small formats, etc. Spaces and areas are required in which the ratio between the storage area and the traffic area is usually the more unfavorable, the larger the plate formats are. This is particularly true when aJs means of transport steerable vehicles such as forklifts can be used.

By using so-called side staples, narrower lanes can be created be achieved. However, there are large open spaces at the ends of the roadways Turning radii required.

Another disadvantage of the known transport and stacking vehicles is that they are normally not able to handle large stacks several meters high and appropriate weight to be transported.

A good utilization of storage space is achieved when dock cranes are used, which lift partial stacks with suitable gripping devices and can transport. However, overhead cranes require appropriate halls, i.e. Halls with sufficient height and options for equipping with crane tracks (Statics).

There are already to overcome the difficulties described above Transport vehicles with lifting devices became known, dje with the help of rails and transversely moving transfer platforms, which are closely spaced and provided with rails Can feed routes without the need for a turning area. The lift trucks can be designed so stable that stack weights of 50 t and more can be achieved.

In a known pallet truck of the last mentioned type this is designed as a portal lift truck, and the track width of the rails corresponds to maximum stack width plus the distance between adjacent stack rows. With the help of such a device, it is possible with n stack rows with n + 1 rails strands to arrive. The side components of such portal vehicles can be kept so narrow that there is only a small space between the sides (for example 500 mm) is required between the individual routes.

In such a system, the running rails from which the The vehicle is guided under the handle, at the same time as a depositing area for the transported Stack. Disadvantageous with one such a rail-bound system however, the space requirement is also dependent on the specified rail spacing is, if the vehicle itself is capable of platoon stacks, more different To be able to take up and transport width.

The invention is based on the object of a system for transport and storage of stacks of panels to create the best possible utilization of a Ensures storage space even with small stacking widths.

This object is achieved in that between the At least one further running rail is arranged in the running rails spaced apart from one another is.

The track width usually corresponds to the maximum stack width plus a minimum distance between the adjacent stack widths that is equal to the width depends on the lateral construction of the transport vehicle. According to the invention, at least another running rail can be arranged between a pair of running rails. Included it goes without saying that to a running rail arranged between a pair of running rails one more, which provides another pair of rails in the gauge of the first. In this way a series of parallel routes can be formed, which each other overlap, so that a lateral displacement of the transport vehicle can be done by less than a track width. In this way you can also different plate sizes a good utilization of the available Achieve storage space.

According to one embodiment of the invention, the distance between them is all Runways are the same size and a multiple of this distance corresponds to the sum from the largest stack width and a minimum distance between adjacent stack widths. This creates a rail grid, which is economical the available storage space.

The measure according to the invention has proven to be particularly advantageous in connection with a further embodiment of the invention, according to which the transport vehicle in its track width ve: is canderable, the maximum width of the transport vehicle is set to the maximum stacking width. A smaller pile is to be taken up and to move, the transport vehicle is reduced in width) so far as it corresponds to the track width corresponding to the stack width. With a grid-like The track width is changed in an advantageous manner by arranging the running rails in the grid spacing of the rails.

Changing the track width without changing the side dimensions of the Transport vehicle alone does not bring any significant advantages, so that according to Another embodiment of the invention provides that the transport vehicle in its width, i.e.-11.

can be changed transversely to the direction of travel, preferably by means of telescopic Displacement of the cross-connection parts. The transport vehicle can thus be used for recording can be set up on thick stacks of plates of different sizes. Instead of a telescopic one Displacement other means can also be used, e.g.

a scissor arrangement to ensure adjustability.

In addition, it can also be provided to facilitate the width adjustment be to attach adjusting wheels on the chassis of the transport vehicle, the optional can be brought into engagement with the substrate by a suitable mechanism.

Finally, one or more adjustment wheels can be used with the motor for the width adjustment be coupled via a suitable drive sverbinding.

An exemplary embodiment is shown below with reference to a drawing closer described.

The single figure shows schematically the front view of a transport vehicle as well as a section through part of a storage area.

On a storage surface 20 is a series of parallel Falirschienen 3 arranged, which run at the same distance d. A straddle carrier truck 21R is shown by a portal Rist formed by two legs 1 and a connecting traverse 6 with the help of flange wheels 2 mounted on the legs 1 on the rails 3 movable. The maximum track width of the straddle carrier shown in the figure 21 is indicated by the distance a, which in the present case is three times the distance d corresponds to.

There are also horizontally swiveling support brackets on the straddle carrier 5 indicated, which can be adjusted in height with the aid of a lifting device, not shown are. The Tragpratzeli 5 support a stack of panels 4 from the stack width b, which at the same time represents the maximum stack width.

Between the rails 3 depositing webs 22 are arranged on which the plate stack 4 and the plate stacks 9 and 10 of FIG The webs 22 must be interrupted in the stacking area se.in to allow the support brackets to be pivoted in and out.

The upper connecting traverse 6 of the portal consists of two parts there and 6b, which are telescopically displaceable into one another.

The section 6b is a motor (not shown) with worm gear 8 assigned, the output of which is connected to an adjusting spindle 7 with a spindle nut 7a is engaged on the cross member 6a. With the described It is possible to use the truss sections 6a and 6b from the device shown in the drawing position shown in each other to drive to a track width of 2d or d form. For the purpose of receiving the stacks of plates 9 and 10, the gauge 21 is required.

To move the lift truck 21 or to adjust the track width can for example, its inclusion on a known transfer platform.

Claims (8)

System for transporting and storing stacks of panels A n s p r ü c h e: 1. System for transporting and storing stacks of panels, with a transport trolley can be moved along roadways which are formed by pairs of running rails and several lifting elements which grasp the plate stacks from below, which by means of a lifting device ind he height are adjustable, characterized in that between the running rails (3) spaced apart in track width (a) at least one further running rail is arranged. 2. System according to claim 1, characterized in that the distance between all rails (3) is the same size and a multiple this Distance (d) the sum of the larger stack width (b) and a minimum distance (c) between adjacent stack widths. 3. System also claim 1 or 2, characterized in that the Transport vehicle (21) can be changed in its track width. 4, system according to claim 3, characterized in that the track width change takes place in the grid spacing of the rails (3) 5. System according to claim 3 or 4, characterized in that the transport vehicle (21) has a width i.e. can be changed transversely to the direction of travel, preferably by means of telescopic Displacement of the cross-connection components (6, 6a, 6h). 6. System according to claim 5, characterized in that the transport vehicle (21) designed as a portal lift truck and the connecting traverse (s) telescopic is designed to be displaceable within one another. 7. System according to claim 6, characterized in that for adjustment the connecting traverse (s) motor with worm gear (8) a traverse section (6b) is assigned, which via an adjusting spindle (7) on the other traverse section (6a) takes up. 8. System according to claim 5 to 7, characterized in that the chassis of the transport vehicle adjusting wheels are suspended so that they are selectively engaged can be brought with the underground to facilitate the displacement of a vehicle part when changing the track width.