SE450828B - AUTOMATIC STACKING SYSTEM FOR SECKS - Google Patents

Description

450 828 \\ without the risk of them breaking and with which an impeccable stacking pattern can be formed. This is achieved with the facility specified in the requirements.

A suitable embodiment of the invention is described in the following by reference to the accompanying drawing, in which Pig. 1 shows a plant according to the invention seen from the side, and Pig. 2 shows the plant seen from above.

In Figure 1, the articulated conveyor 2, which follows the movements of the main conveyor H, feeds sacks to an overlying reversing device 3 provided with pneumatic turning discs, which turns the sacks in the desired position. At this stage, the transport base 1H located on the stacking elevator 13 is in its upper position. The main conveyor H is movable laterally and the turning device leaves each bag e.g. at section B, which feeds the bag to the transport base lu located on the stacking elevator 13. The block B as well as the sections A and C move by means of a mechanism, to which mechanism belong the fixedly mounted pulleys 8 and 9 and the pulleys 10 and 12 movable in the longitudinal direction of the conveyor and a belt 11 connected to these pulleys. The movement of the movable pulleys 10 and 12 causes the desired section to function as a delivery conveyor, ie as a stacking means.

In the case shown in the drawing, the width of section B of the main conveyor H essentially corresponds to the width of the sack and the total width of all sections A, B and C essentially to the length of the sack. In this case, section B moves a sack lying in the longitudinal direction to the stack and all sections A, B and C a transverse sack to the stack. When the entire layer has been completed on the transport base lu, the stacking elevator 13 lowers one floor downwards and the previous measures are repeated. is 450 828 There are also cases where the length or width of the bag is substantially equal to the width of two of the sections of the main conveyor H, ie either A + B or B + C. In this case, the bag should thus be placed asymmetrically on the main conveyor U. In the case shown in the drawing, this is done simply so that the front stop 15 of the turning device 3 is moved in the transport direction forward a distance corresponding to the width of section A or C. the arriving sack stops at the abutment 15. When the sack is now, with the aid of the turning device, turned a ° I asymmetrically either on sections A and B or on sections B and C. "in one or the other direction, the sack is placed in the manner shown in the drawing. In this case, there are abutments 6 at the stacking elevator 13 in the plane of the main conveyor H, which place the bags more accurately in their places, but these abutments 6 can be omitted.

According to the drawing, the stacking lift 13 is used for height application. Instead, the conveyors 2 and H can be arranged to be movable in height, whereby the stacking lift 13 is not needed.

According to the drawing, the articulated conveyor 2 is rotatable laterally in a manner shown by the arrow 16. The main conveyor H_ follows the lateral movements of the articulated conveyor 2, but without turning.

It is also possible that the main conveyor H does not move laterally at all, but that the articulated conveyor É guides the sacks to desired positions in the lateral direction of the main conveyor H.

All the above functions are provided with a control center, the control devices of which are provided with programmable logic.

The invention is not limited to the embodiment shown above, but may vary within the scope of the appended claims. Thus, there may be only two sections A, B, 450 828 or C or on the other hand they may be more than three. The more sections there are and the narrower they are, the more flexible the function of the inventive device is.

There has been talk above of stacking sacks, but the device can also be used for processing other packages to be stacked on a transport base according to a certain pattern. A typical area of use is the stacking of empty sacks forming bundles at a sack factory. 4 »1)

Claims (3)

450 828 'P A T E N T K R A V An automatic stacking plant for sacks, wherein the sack bearings are formed directly on a transport base in the desired order by means of a combination of conveyors, comprising a belt or a joint conveyor (2), arranged to feed the seeds to a turning device (3) and a located below the turning device, the main conveyor (H), which also forms a sack stacking means and which is divided into two or more parallel sections (A, B, C), characterized in that at least one of said sections is arranged to be driven by one of stationary (8,9) and movable (l0,12) pulleys and a belt (ll) so that the section can be extended and shortened and that the sections (A, B, C) are arranged to form individual stacking means, stacking means formed by two adjacent sections or stacking means formed by all sections depending on the bag size. Stacking plant according to claim 1, characterized in that the conveyors (2, U) are fixedly mounted in height and that the transport base comprises a stacking lift (13), which is arranged to move the stack of bags vertically depending on the supply of sacks to the stack. Stacking plant according to claim 1, characterized in that the conveyors are movable in height and that the transport base is stationary.