SU1442587A1 - Apparatus for cutting and delivering cardboard - Google Patents

Abstract

The invention relates to the design of a cardboard machine and can be used in the paper industry. The purpose of the invention is to reduce the energy costs of cutting a folder by cutting layers of elementary layers. The device comprises a frame 1, a chest shaft 2 and a format shaft 3. On the frame there is a belt-carrying roller 4, through which the cloth 5 transfers an elementary layer onto the format shaft 3 to form a folder. The format shaft has radially arranged guides 7, between which the cutting member is pulled. During the rotation of the shafts 2 and 3, the cloth supplies a layer of cardboard to the contact zone between the shafts. Before the zone of contact of the shafts, the cutting body, interacting with the cloth 5, transfers the elementary layer, and the folder has a slot when winding, so there is no need to cut it after the winding process is completed. This reduces the energy costs of cutting the folder. 4 il. in cl

Description

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This invention relates to a cardboard packaging design and can be used in the paper industry in the production of multi-ply cardboard.

The aim of the invention is to reduce the energy costs of cutting a folder by cutting layers of elementary layers.

In fig. 1 shows a front view format shaft; in fig. 2 - the same, side view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 - view B in figure 2.

The device consists of the bed of the machine 1, the chest shaft 2, the format shaft 3, the belt-carrying roller 4 and the transfer felt 5. On the bed 1 there are installed profile guides

The cutting block 1 body 10 starts cutting the layer, as the felt is pressed against the format shaft 3, and the cutting member 10 through the axles 9 is pressed against the springs 12 installed in the guides 7 to the felt. In the zone of contact of the chest shaft 2 with the format shaft 3, the cutting body 10 is embedded in the groove 13. At this point, the springs 12 are compressed, and after the groove 13 comes out of contact with the felt 5 and the chest shaft 2, they push the recess 10 from the groove 13. 10 finally cuts the elementary layer held on the format shaft by adhesion, begins to be pressed into the layer on the cloth 5 by pressing the cloth 5 to the format shaft 3 and pushing the spring

with the possibility of changing your polishing by 20 us 12. In the area of contact format

relative to the format of the shaft in the radial direction. On the format shaft 3 there are fixed radially arranged guides 7 in which the sleeves 8 of the gear mechanism are mounted. In the sleeve, an axle 9 is fixed to the cutting mechanism. In the cavity of an axis 9, a loose org 10 is freely missed, which has a fixing unit 11 at the end. The sleeves 8 of the cutting mechanism interact with the strings 12., mounted in the guides 7, the cutting body 10 enters the groove 13 of the formatting shaft 3. Parallel to the cutting body 10 is an elastic band 14, the ends of which are made in the form of axes 15. Axes 15 are skipped in the supports 16 fixed on the rails 7. At the ends of the axles 15, the rollers 17 are rotatably fixed, located in the plane tangential to the format shaft 3. Tension springs 18 are mounted along the axes 15 between the rollers 17 and the supports 16.

The device operates as follows.

The chest shaft 2, receiving rotation from the drive, rotates the format shaft 3. Both shafts are fixed in bearings on the frame of the machine 1. Between the shafts passes the cloth 5, supported by the bitch with the lead roller 4. The shaft 3, during rotation, winds up the elementary layers of cardboard fed by the cloth. The cutting body 10, located nj above the format shaft in the presence of the grooves 13, comes into contact with the layer on the felt 5 before the contact zone between the shaft 3 and the chest shaft 2.

shaft 3 with the chest shaft 2, the cutting organ 10 is embedded in a slot formed in the folder with the preceding pe3ax, j or in the groove 13 when the folder is wound. After the cutting member 10 comes out of contact with the chest shaft 2, it is pushed out by the springs 12 and the final cut of the elementary layer of cardboard occurs.

Thus, at each turn, the cutting organ cuts an elementary layer of wet cardboard. When pressing the shaft with the cutting unit 10, which is freely passed into the hollow axis 9 and fixed at the end by the fixing unit 11, the sleeves 8 of the cutting mechanism move, which deform the springs 12. The cutting member. 10 is tightened by a screw gear between the hollow shaft 9 and the sleeve 8 of the cutting mechanism. The cutting member 10 is replaced by releasing the hollow axles 9 from the sleeves 8 and installing a new axle 9 on this place with the cutting member 10 having fixing units 11 at the ends. The preparation of a cutting organ is carried out independently of the operation of the carton making machine. The cutting body 10 is mounted above the format roller 3 for a value slightly larger than the maximum thickness of the wet cardboard folder. When the format shaft 3 winds the required thickness of the folder, it will change its position relative to the frame 1 and due to this the rollers 17 located in the plane tangent to the format shaft 3 will come in contact with profile 1 and the guides 6. The latter move the rollers 17

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along the axis of the format shaft, which act on the axis 15 and deform the elastic band 14 and the tension springs 18 located between the rollers 17 and the supports 16 fixed on the rails 7. The elastic band 14 loses stability and is curved perpendicular to the shaft surface Wet cardboard folder is being removed. After the rollers 17 come out of contact with the longitudinal guides 6, the tape 14 assumes the initial position due to its own elasticity and the spring 18. Change the position of the profile guide 6 on the base 1 in the radial direction relative to the formatting shaft 3 to achieve the removal mechanism when reaching the desired folder thickness.

After removing the cardboard sheet, the format shaft is lowered, the removal mechanism comes to its original position, and the cutting mechanism continues to work.

The removal cycle is repeated as the predetermined thickness of the paper sheet is reached. The number of cutting and pickup mechanisms depends on the number of sheets of cardboard taken from one format shaft.

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The device reduces energy costs for cutting and removing folders as each layer is cut separately, and an additional drive is not required for the removal mechanism to operate.

Claims (1)

Invention Formula Q A device for cutting and removing cardboard that contains a format shaft of a cardboard machine and a chest shaft in contact with it, profile elements mounted on a bar mounted on a format shaft in radially arranged guides of a spring-loaded cutting member and means for removing cardboard in the form of an elastic tape differ 20 liTo, in order to reduce the energy costs of cutting a folder by cutting layers of cardboard, layer by layer, it has in front of it a sheet of elementary layers for formatting the shaft and formatting shaft guides are shifted in the radial direction for mounting the cutting element interacting with the felt above its surface 30 in front of the contact area of the format and the chest shaft. 1 Xlf-up. B