SU1736738A1 - Folding and thread-stitching flow line - Google Patents

Abstract

The invention can be used to fasten notebooks in the manufacture of printed products. The flow of notebooks is divided into two parts by a flow distribution device. The notebook, coming out of the rotary folder, touches the stylus 30. It turns the disk 36, which includes the suction of air from the inner chamber 10 of the rotating cylinder 8. Pneumopressors 12. pass by the chamber, capture the tet

Description

The invention relates to the printing industry, in particular to flow lines for the manufacture of notebooks and brochures.

Known sewing and folding production lines, consisting of a cutting-folding device, a flow-dispensing device with a two-way guide bridge, as well as cluster and knife folding machines, sewing machines, receiving-output devices with collectors.

Of the known sewing and folding lines, the closest to the proposed technical essence is the folding-sewing line, containing a cylindrical cutting-folding device, a flow distribution device with a two-way guide bridge, sewing machines, folding knife and cassette devices, receiving-output devices.

In this sewing-sewing production line, the partially folded notebook comes out of the cutting-folding machine, with the help of a bridge is fed onto a roller table and is held back with an emphasis until the next notebook with a throw-over bridge goes along a curved guide to the transport rollers. Notebooks, then straightened with strips, flow along rollers in a parallel flow into a cassette folding machine, are mixed in sewing machines and are conveyed to a knife folding machine, which folds notebooks along the line of their stitching. The notebooks are then output to a receiving device.

Known folder-sewing line has the following disadvantages:

the movement of notebooks along the roller table and curvilinear guide takes place under the action of gravity and the notebooks are not fixed by anything; after the notebooks reach the transport rollers, their direction of movement changes at a right angle to the original;

three-page notebooks are derived from the folding-cutting apparatus, which in roll-up rotations are two 16-page notebooks nested into one another, when moving along the roller table and curvilinear guide, when struck against the stop and transporting the rollers

the inner part of the notebook will shift relative to the outer one, which after reduction will lead to a marriage;

the cassette folder operates unreliably when folding at high speed notebooks, which already have several folds, and frequent stops of the roll rotation and its subsequent acceleration are associated with a decrease in productivity and loss of paper;

the flow distribution device is rather complicated in its construction, except for the mechanism of a two-position walkway it includes a mechanism for cyclic delay of notebooks,

The purpose of the invention is to increase the reliability of work and the productivity of sewing-folding production lines attached, for example, to roll rotation for obtaining fastened notebooks.

To achieve this goal, notebooks coming out of the folder-cutter come into the flow distributor, made in the form of two installed one above the other at a distance

slightly greater than the thickness of a single notebook, hollow rotating cylinders, on the surface of which, along the forming cylinders, are floating suction cups that communicate with the internal cavity of the cylinders. Inside the cylinders there are fixed chambers that are open in the area of the circular arc in the zone of contact between the cylinders and the tetrads.

The walls of the chamber can be adjusted,

if you need to increase or decrease the angle between them or change their position. Each notebook, acting on a mechanical or photoelectric device, includes a compressor suction of air from the chamber of the upper or lower cylinder. The suckers of the corresponding cylinder, the passage in the chamber zone, suck the notebook over the radicular field and bring it to one of two existing levels to the sewing folding and receiving devices.

At the same time, the direction of movement of the notebooks leaving the cut-folding machine remains linear, and the notebooks are constantly clamped between the transporting devices — conveyor belts — in the process of moving and stitching, which ensures reliable movement of the internal parts. exercise books.

Figures 1 and 2 depict a scheme for constructing a sewing-folding line in two forms.

The production line contains a folding-cutter, including cylinders 1-5, folding b, rollers 7, a flow distribution device with cylinders 8 and 9, which contain internal fixed chambers 10 and 11, adjustable with screws 37 and 38, and floating suckers 12 and 13, belt conveyors 14 and 15, sewing machines 16 and 17 with stops 20 and 21, duplicate sewing machines 18 and 19 with stops 22 and 23, knife seams 24 and 25, receiving-output devices 26 and 27 with pushing 28 and 29, a device for alternately switching air suction from chambers 10 and 11, consisting of a probe 30. a lever 31 with a pawl 35, a ratchet 32 of a rotary disk 36c protrusions, switches 33 and 34.

Lini works as follows.

The paper tape is folded on the funnel 6 in the process of movement. The resulting fold is ironed by the pair rollers 7. When the folded tape passes between cylinders 1 and 2, it is cut across with a knife attached to cylinder 1. The severed part of the tape is graphed or grabbed and transferred to the pick cylinder 3. The next severed part is aligned with the cylinder 2 located on the selection cylinder 3, and both of them are transported further by the cylinder 2. When the midpoints of these sheets lie further connecting the centers of the cylinders 2 and 4 lines, the valve fold mechanism is activated and a transverse fold is formed. When this occurs, the sheets are intercepted and they are transported further by cylinder 4.

The sheets, folded in two folds, which are partly ready-made notebooks, are released by the valve of cylinder 4 and, with the help of cylinder 5, are removed from the folder. The notebook touches the probe 30. which rotates the hourly arrow and shakes the lever 31 with the dog 35. The ratchet 32 rotates at a certain angle along with the disk 36, the protrusions of which touch the switches 33 and 34 and include the exhaust of air from the chamber of one of the cylinders 8 or 9. Pumps 12 or 13 pass the notebook

In one of the belt conveyors 14 or 15. Upon further movement, the notebook falls under the sewing machines 16 or 17, stops under it with the front stop 20 or 21 and is stitched. Then the stops are lowered and the notebook continues to move to the knife folder 24 or 25, where it folds along the stitching line and is output to the receiving device 26 or 27 by the pushing lever 28 or 29.

5If there is a problem in one of the four sewing machines 16 or 17 operating in the upper or lower channel, the locking devices (not shown) stop the operation of the entire set,

0 lower the stops 20 or 21 into the lower position and turn on the corresponding backup line of sewing machines 18 or 19 with the stops 22 or 23. After troubleshooting, the sewing machines 16 or 17 are waiting

5 reverse switching in the event of a malfunction in the operating duplicate row of sewing machines.

Application as a flow distribution device proposed

The 0 rotating cylinders with pneumatic suction cups, which ensure separation of the flow of notebooks into two levels due to the alternate switching of air suction from them, controlled by the notebooks themselves, 5 allows to significantly increase the speed of work, productivity and reliability, as well as reduce paper waste into scrap, which occur during forced stops of the production line.

0 For the Soviet book industry, high runs are typical, for which mainly roll rotations are used. If you stitch notebooks, for example, with thermonites during the printing and folding process,

5, it is possible to refuse to sew on a sewing machine on sewing machines, a process that takes about 40-50% of the total labor intensity of producing books in bookbinding and bookbinding. But,

0 so far, the binding of notebooks with thermonites in rolled rotations in an industrial form has not been implemented, since there are no reliable operating systems for the binding of notebooks with thermonites that could

5 attach to the rotation.

Claims (1)

Claims of the invention Folding sewing line, comprising a cylindrical folding machine, a flow distributing device, sewing machines, a folding cutter, and receiving-output devices that are different in order to increase the reliability of operation and productivity. the device is made in the form of two installed one above the other with a gap for the passage of one notebook of a hollow rotating cylinder, having floating pneumatic suckers and internal fixed, adjustable chambers, equipped with means of alternate switching of air suction from them, while sewing machines, folding knife devices and receiving-output devices are located in two levels, Slt-Ihu jj