Palletizing device for a piling of filled sacks

Abstract

A palletizing device for a piling of layers from at least two rows of filled sacks to a sack stacking comprising a sliding device with a sliding area for the formation of a layer of filled sacks and a supply device with at least a conveyor belt for the supply of filled sacks in a feed position on the sliding area, wherein the sliding device comprises a sliding table beneath the sliding area and a slider for sliding of the filled sacks from a sliding position on the sliding area on the sliding table, wherein the conveyor belt is performed in a way that a supply distance between a feed position and the sliding position is smaller than a sliding distance between the sliding position and a frame of the sliding device at the supply edge of the conveyor belt.

Claims

1. Palletizing device for a piling of layers from at least two rows of filled sacks to a stacking location where said rows are stacked, the palletizing device comprising a sliding device, the sliding device comprising a sliding area for the formation of a layer of filled sacks, and the palletizing device further comprising a supply device with at least one conveyor belt for the supply of filled sacks to a feed position on the sliding area, wherein the sliding device further comprises a sliding table a the sliding area and a slider for sliding of the filled sacks from a sliding position on the sliding area to the sliding table, wherein the conveyor belt extends beyond a frame of said supply device at a supply end of said conveyor belt into said sliding device to extend said feed position into said sliding device such that a remaining supply distance between said feed position and the sliding position, said remaining supply distance being finite, is smaller than the distance between the sliding position and said frame of the sliding device at the supply end of the conveyor belt, the sliding table being laterally offset from an alignment of said conveyor belt and said sliding position being aligned laterally with said sliding table, a lifting device being arranged below the sliding table for receiving the sack stack that is being formed.

2. Palletizing device according to claim 1, wherein the supply distance is set as smaller or equal to half of the sliding distance.

3. Palletizing device according to claim 1, wherein the supply distance is smaller than or equal to approximately 400 mm.

4. Palletizing device according to claim 1 wherein the supply distance is one member of the group of distance ranges consisting of: between approximately 150 mm and approximately 250 mm, between approximately 180 mm and approximately 220 mm, and between approximately 195 mm and approximately 205 mm.

5. Palletizing device according to claim 1, wherein the supply device comprises a calibrator.

6. Palletizing device according to claim 1, wherein the supply device comprises at least two conveyor belts.

7. Palletizing device according to claim 1, wherein a sensor device is provided with a sensor for detection of the filled sacks in the feed position and with a sensor for detection of the filled sacks in the sliding position.

8. Palletizing device according to claim 1, wherein the sliding area comprises at least a sliding belt for a movement of the filled sack from the feed position in the sliding position.

9. Palletizing device according to claim 1, wherein the frame of the sliding device comprises a frame section through which the supply edge of the conveyor belt extends.

10. Palletizing device according to claim 1, wherein a lifting device is arranged below the sliding table for receiving the sack stack that is being formed.

11. Palletizing device according to claim 6, wherein said at least two conveyor belts, are assembled mainly parallel to one another with an identical or mainly identical supply distance.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages, features and details of the invention result from the following description, in which with reference to the drawings embodiments of the invention are described in detail. Thereby, the features described in the claims and in the description can be each single or in any combination be essential for the invention. It is schematically shown:

(2) FIG. 1 a sack stacking performed by a palletizing device according to the invention during the performance of the last layer,

(3) FIG. 2 an embodiment of a palletizing device according to the invention,

(4) FIG. 3 the embodiment of FIG. 2 in a further proceeding state, and

(5) FIG. 4 the embodiment of FIG. 2 and FIG. 3 in detail.

(6) FIG. 5 shows a calibrator and calibrating thread of the present embodiments.

DESCRIPTION OF SPECIFIC EMBODIMENTS OF THE INVENTION

(7) According to FIGS. 1 to 3 initially basically the functionality of the palletizing device according to the invention is described. So in FIG. 2 starting from the right a performing device 400 is intended which for example provides the filled sacks as a so called form-fill-and-seal-machine. Via a schematically shown switch now a distribution to two different conveyor belts 20 can occur. Upstream of these conveyor belts 20 is a rotating device 130 in order to bring the single filled sacks 200 in a desired different orientation. The orientation thereby depends on the corresponding overview of the layer 230, which should be performed in the sliding device 110 of the sliding area 112. Subsequently, after the corresponding turning of the rotating device 130 the single rows 210 of the sacks 200 can be conveyed in the palletizing device 100 particularly in the sliding device 110 via the conveyor belt 20 of the supply device 10.

(8) FIG. 2 shows a completely performed layer 230 and two rows 210, which are already assembled in the sliding position S on the sliding area 112. Subsequently a slider 116 can convey the complete layer 230 in FIG. 2 downwards to the sliding table 114. If the layer 230 is now on the sliding table 114 like shown in FIG. 3 and FIG. 1, the slider 116 can be moved backwards in its starting position. The sliding area 112 is now ready for the acceptance of the next rows 210 of the sacks 200 with the help of the conveyor belts 20. Naturally the complete functionality can be performed also with only one single conveyor belt 20 in the supply direction 10 so that the slider 116 performs an intermediate movement for the performance of the respective layer 230 on the sliding area 112.

(9) After the conveying of the layer 230 on the sliding table 114 this opens, so that the corresponding layer 230 can be passed downwards and is movable downwards with a lifting device 140 on a pallet 300. In this manner the whole sack stacking 240 is performed in layers.

(10) In FIG. 4 the functionality according to the invention can be recognized. Particularly here the correlation of the respective supply distance ZA and the sliding distance SA is to be recognized. Via a conveyor belt 20 of the supply device 10 the sacks 200 are supplied in the sliding device 110 and in a feed position Z, which is shown in a dashed manner. After this supply movement the row 210 of these sacks 200 is in a dashed position according to FIG. 4. Now the sliding area 112 of this embodiment of the sliding device 110 comprises a sliding belt 113, which is intended for the further movement of the feed position Z in the sliding position S (shown with a continuous line). As soon as this occurs, the already described sliding movement with a slider 116 and the further palletizing can occur.

(11) Like it can be recognized the frame 118 comprises at the right side of the sliding device 110 a recess 119 through which the edge 22 of the conveyor belt 20 extends. This supply edge leads to the fact that the feed position Z is assembled with a shift to the left outside the frame 118 compared to the assembly of the conveyor belt 20. Thereby, also the supply distance ZA reduces to the value like it can be recognized in FIG. 4. Particularly, the supply distance ZA reduces in correlation to the sliding distance SA to a smaller value as this sliding distance SA. Like it can be recognized the supply distance ZA defines the necessary movement distance between the feed position Z and the sliding position S. This distance is diminished by the reduction according to the invention so that accordingly also the corresponding time for this movement can be reduced by the supply distance ZA. Since hereby it is basically about a time critical factor with the complete palletizing process, thereby the whole palletizing device 100 is speeded up concerning the performed palletizing process.

(12) Reference is now made to FIG. 5 which illustrates calibrator 12 which is provided to the supply device. The calibrator 12 includes a calibration thread 13 to allow for variation of the supply distance for the conveyor belt. Specifically the calibrator may permit modification of the conveyor belt supply distance. The distance between the feed position and the sliding position may be smaller than the sliding distance between the sliding position and the frame of the sliding device at the supply edge of the conveyor belt.

(13) The previous description of the embodiments describes the present invention only within the scope of examples. Naturally, also single features of the embodiments as far as technically meaningful can be freely combined with one another without leaving the scope of the present invention.

REFERENCE LIST

(14) 10 Supply device

(15) 12 Calibrating means

(16) 20 Conveyor belt

(17) 22 Supply edge

(18) 100 Palletizing device

(19) 110 Sliding device

(20) 112 Sliding area

(21) 113 Sliding belt

(22) 114 Sliding table

(23) 116 Slider

(24) 118 Frame

(25) 119 Frame section

(26) 120 Sensor device

(27) 122 Sensor means

(28) 130 Rotating device

(29) 140 Lifting device

(30) 200 Sack

(31) 210 Row

(32) 230 Layer

(33) 240 Sack stacking

(34) 300 Pallet

(35) 400 Performance device

(36) S Sliding position

(37) SA Sliding distance

(38) Z feed position

(39) ZA Supply distance