SU1294896A1 - Apparatus for cutting and stripping cardboard off format cylinder of board-making machine - Google Patents

Abstract

The invention relates to the pulp and paper industry and can be used in the manufacture of multi-ply sheet cardboard. The purpose of the invention is to increase productivity and reliability. The device consists of a bed of the machine 1, a chest shaft 2 and a format va l. 3. On the bed I, 4 profile elements 5 are mounted in guides, connected to the drive 6. Guides are mounted on the format shaft 3 .7 in which the bushings of the cutting mechanism are mounted and bushings, spring loaded. In the sleeve of the cutting mechanism is mounted a underspan, mounted on cutting body 12 with an inner ring, at the ends of which the contact rollers 13 are fixed. A spring is mounted between the contact roller 13 and the inner ring of the bearing. The cutting body 12 enters the groove of the format shaft 3. In parallel with the cutting body 12, the bar I6 is located, the ends of which are provided in the form of axes. Additional rollers are rotatably attached to the axles. The axles themselves pass through the sleeve. On the frame of the machine 1 mounted sensor 19 thickness. 4 il. SL C g (poti

Description

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The invention relates to the pulp and paper industry and can be used in the manufacture of multi-ply cardboard.

The aim of the invention is to increase productivity and reliability of operation.

FIG. shows the format shaft, front view; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 - section bb In fig.

The device consists of a bed of the machine 1, a chest shaft 2 and a format shaft 3. On the base 1, the profile elements 5 are mounted in guides 4 connected to the drive 6. On the format shaft 3, a guide 7 is fixed, in which the bushes 8 are mounted

cutting mechanism and bushings 9, pressed by springs 10. Bearing 1 is mounted in sleeve 8 of the cutting mechanism, the inner ring is mounted on the cutting body 12, at the ends of which the contact rollers 13 are fixed. Between the contact roller 13 and the inner ring of the bearing 11 is installed spring 14. The cutting body 12 enters the groove 15 of the formatting shaft 3. Parallel to the cutting body 12 is a bar 16, the ends of which are made in the form of axes 17. On the axles x 17, additional rollers 18 are rotatably supported. The axes 17 themselves are driven through 9. tulkus machine frame 1 is mounted a sensor 19 thickness.

The device works as follows.

The thoracic shaft 2, receiving rotation from the drive, rotates the format shaft 3. Both shafts are fixed in bearings on the bed of the machine 1. The format shaft 3 rotates the elementary layers during rotation. Upon reaching the required folder of cardboard, the sensor 19 is triggered. It sends a signal to actuation of the actuator 6, which introduces the profile elements 5 in interaction with the contact rollers 13 and additional contact rollers 18. The profile elements 5 for rigidity are provided with guides 4 that interact with the frame of the machine 1. The contact rollers 13 roll along the profile elements 5 and -, copying their profile, are moved radially away from the surface of the format shaft 3. The rollers 13 tons of chickpeas behind them are cutting op 94896

gan 12 fixed in them, and withdrawing it from the groove 15 of the formatting shaft 3. Cutting body 12 moves together with springs 4, 5 V sleeves and bearings 11 fixed in the sleeves along guides 7. When meeting with wound on a format shaft 3 cardboard folder

12 compresses the springs 14 with contact rollers 13 and some sag is formed, thereby starting

cutting the folder from the edges to the middle of the format shaft 3. Rolling the contact rollers 13 along the profile elements 5

 5 provides rotation of the cutting member 12, which reduces the cutting force. After completion of the cutting, the cutting ort reamer 12 is released and the springs 14 are tensioned, and at the same time it begins to vibrate, which helps to clean the cutting organ from adhering cardboard particles. The working body 12 returns to its initial position the profile elements 5 and the springs 10, 5 acting on the sleeve 8, the bearings 11 and the working body fixed in them. In row for contact rollers

13, additional contact rollers 18, mounted with the possibility of rotation on the axis 17, connected to the plate 16. The bar 16 with the axes 17 fixed rigidly in the sleeves 9 moves radially from the surface of the format shaft 3 and ensures the tension of the cardboard folder in the moment of cutting and its removal after completion of cutting. The strap 16 is returned to its original position by springs 10, which are fixed 40 in the guides 7, acting on the sleeves 9 with the axles 17. After removing the cardboard folder, the thickness gauge 19 returns to its original position.

Claims (1)

45 claims A device for cutting and removing cardboard from a format shaft of a cardboard machine, including thickness 50 measures, profile elements with a drive for moving them towards the ends of the shaft walls, a cutting mechanism with guides, a cutting member and contact rollers, interacting with them 55 profile elements, and means for removing cardboard from the shaft, characterized in that, in order to increase productivity and reliability in operation, the contact rollers are rigidly fixed at the ends of the cutting member, ... installed spring-loaded along its axis and passing in the guiding cutting mechanism , and the means for removing the cardboard from the shaft are made in the form of a strip installed in the cutting mechanism guides parallel to the cutting member, having additional contact rollers mounted at the ends, mounted in a row behind the first contact po faces. fig .. fig.Z 5-8 fig a