DK142406B - Method and apparatus for filling boxes. - Google Patents

Description

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BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method of filling boxes with a particular paste cheese or liquid material, such as butter, where a sheet tube having substantially the same cross-section as the box is placed on a sheet, such as paper or plastic film, which is folded to form a lining which is introduced into the box by means of the feeder tube, after which the lining is filled with the material.

In this method, it is a disadvantage that the lining, e.g. can be of parchment paper, plastic wrap or other film, is difficult to hold in the box during its transport and during the feeding operation. Thus, it may happen that the liner curls or folds completely, so that the filling of the box may become defective and defective sealing may also appear.

15 From Danish Patent Application No. 3599/76, a method of the specified kind is known in which the pre-pipe is arranged in a non-displaceable but rotatable manner about its longitudinal axis. During rotation of the propagating tube, a sheet of liner material is wound around the tube and the sheet material projecting outside the free end of the tube is folded around the end bottom of the tube to form a multilayer folded bottom in the liner. Then a box is inserted over the end of the casing liner and the material is pressed through the casing towards the casing and the bottom of the casing, whereby the casing with casing is pushed back 25 while filling the casing.

By this method, complete assurance of tightness can only be achieved if the casing material is wound around the overlap with a large overlap, which results in a relatively high consumption of casing material.

The method according to the invention is characterized in that the propagating tube is arranged with a vertical longitudinal axis over some supporting means, on which a substantially horizontal unfolded sheet of liner material is placed, which is then folded up around the forming tube so that its lower end surface after the folding is covered. of a single, unbroken and unfolded layer of lining material, whereupon the lead tube with the lining is inserted into a box under the spring tube, and a delivery means for the material is introduced into the lining to fill it.

In this method, an unbroken, unfolded, single-layered bottom is formed in the liner so that any risk of leakage here is eliminated, and the folding method automatically results in relatively large overlap on the side surfaces of the pre-pipe, so that even here, sufficient density is obtained without difficulty.

If the method is used for filling with butter, it will be convenient if it is practiced as set forth in claim 2, 15 so that butter does not come on the multipurpose tube during filling.

The invention also relates to an apparatus for filling boxes with a particular paste cheese or liquid material such as butter, where a sheet tube having substantially the same cross-section as the box is placed on a sheet, such as paper or plastic film, which is folded to form a liner which is inserted into the box by means of the pre-pipe, after which the liner is filled with the material for carrying out the method according to claims 1-2, which is characterized in that it has a table for supporting a box in a standing position, the pre-pipe being arranged vertically movable over the supported box, and means adapted to support a substantially horizontal sheet of liner material and to fold it around the die tube to form a single-layer, unbroken bottom lining, and means to guide the die tube the lining down into the box where there is a delivery means for delivering a paste cheese material and means for placing the delivery means above or in the propagating tube when the something is in the box.

3 142406

Conveniently, the apparatus of the invention can be configured as claimed in claim 4, wherein there is a casing station and a filling station operating simultaneously such that one box receives a lining while another box is filled. This is made possible by the use of two bore pipes which are alternately located in the casing station and in the filling station. This results in a great working speed.

In the following, the invention is explained with reference to the drawing, which schematically shows an apparatus according to the invention, seen from the side.

On a transport member 1 there is a box 2 which can have a rectangular cross-section in a horizontal plane and which has a top tab at the top 3. The box is open at the top.

From the transport means 1, the box is introduced by means of 15 movement means not shown on a support table 4. The place where the box 2 is located on the left of the support table 4 is hereinafter called the "casing station". This station is provided with a support member 6 for some folding plates 7 which can be moved by means of pressure medium cylinders 8. Above the box 2, a pre-pipe 9 is provided which has the same cross-section as the box 2 and is carried by an arm 10 on a vertical piston rod. 11, housed in a pressure medium cylinder 12.

By means of moving means not shown, a piece of sheet material, e.g. parchment paper or a foil, onto the folding sheets 7, and then the folding sheets are pivoted up in known manner against the forming tube 9 so that the sheet material is folded around the folding tube and forms a liner for the box. Then, by means of piston 11, the former tube 9 is moved downwards and into the box 2 together with the lining, which is thus placed 30 in place in the box and held in place in the box by the tube 9. The folding means 7, 8 do not participate in said downward movement.

142406 4

Thereafter, the entire unit consisting of the box 2, the piston rod 11 and the molding member 9 are rotated together with a corresponding molding member 13 carried by an arm 14 on a piston rod 15 arranged diametrically against the corresponding previously described means, 180. °, so that the box 2, together with the pre-pipe 9, reaches the space shown on the right of the support table 4, which is designated "filling station". At the same time, parts 13-15 are rotated to the casing station, as will be described below.

10 At the filling station there is a pressure medium cylinder 16 adapted to lift the box 2 upwards. At the same time, the front tube 13 is lifted upwards by the piston rod 15, whereby a delivery means 17 is inserted into the front tube 13. When the delivery means 17 and the lower part of the front tube 13 are located at relatively short distances above the bottom of the box 2, , eg. butter, through the delivery means 17. As the box 2 is filled, it is moved downwardly so that the delivery means 17 and the lower part of the feeder tube 13 still remain at certain distances above the surface of the material and thus no butter comes on the feeder tube. During the feeder operation, the liner is still held in place by the feeder tube so that it does not have the opportunity to fold. After delivery, the buttercream can be cut off by a cutting element not shown, which is inserted into the slot 18.

After the filling and after the box has been completely released from the delivery means 17 and the pre-pipe 13, it is moved to a filling station by means of not shown, where it is shown in dotted lines and denoted by 19. Here a small refilling takes place. by means of a delivery means 20 and this backfill is controlled under the influence of the weight of the box, the box being arranged on a vertically movable platform 21 which influences a control mechanism 22 for the backfill. After the folding operation, the unit is rotated 180 ° so that the front tubes 9 and 13 change space. After the refill

Claims (2)

The box is passed to a sealing machine 23. As can be seen from the foregoing, in the apparatus described, a casing is placed in a casing in the casing station, while a second box is filled in the filling station so that the working speed is big. The described movements of the various parts included in the apparatus can be controlled in a known manner by means of a pneumatic, hydraulic and / or electrical control system, so that the whole process can be carried out automatically. 10 More than two stations can be found, e.g. one casing station and two feeding stations, whereby the rotation becomes less than 180 °, e.g. 90 °. Claims. A method of filling boxes with a particular paste cheese or liquid material, such as butter, where a sheet tube, having substantially the same cross-section as the box, is placed on a sheet, such as paper or plastic film, which is folded to form a liner which is introduced into the box by means of the feeder tube, after which the lining is filled with the material, characterized in that the feeder tube is placed with a vertical longitudinal axis over some supporting means, upon which is applied a substantially horizontal unfolded sheet of lining material which is then folded so up around the bore tube that its lower end surface after folding is covered by a single, unbroken and unfolded layer of liner material, whereby the bore tube with the liner is inserted into a box under the bore tube and a delivery means for the material is inserted into the liner to fill it. . Method according to claim 1, characterized in that the pre-pipe and the delivery means before the start of the filling