SU144176A1 - Printing device - Google Patents

Description

Known printing devices, including a form drum with numbering disks placed in it, a mechanism for installing these disks, a colorful machine and a pressure cylinder placed under a form drum. However, these devices do not provide marking of the steel strip during their movement on the rolling mill. The proposed device, in which the form drum is divided in length into several identical sections according to the number of marked strips and two numbering discs for printing of units and tens are installed in each section, provides simultaneous marking of these strips of steel. In addition to the above structural changes, it uses two separate remote-controlled mechanisms for setting the numbering disks of units and tens to the working position. In addition, each of the mechanisms for mounting the numbering discs is made in the form of a controlled remote hydraulic cylinder and an adjusting roller free-wheeling clutch driven by it. This clutch is freely placed on the axis of the form drum and coupled with one side through a gear transmission to the shaft of the numbering discs, and the other side to the toothed locking clutch which is spring loaded and placed on the sliding tongue of the drum half axis. To enable the locking clutch to disengage when the adjusting clutch is rotated, the latter is fitted with a finger, and an end cam that interacts with this finger is fixed on the locking clutch. This device is of particular interest in connection with the widespread introduction of automation in the rolling industry, since with continuous automatic inspection of rolled strips, it is also necessary to continuously label them, which is possible only with remote control of changing signs on the drum.

No. 144176 - 2 The above device has been tested in practice on the sheet rolling mills of the Uralmashzavod cold rolling mill.

FIG. 1 schematically shows a form drum in longitudinal section; in fig. 2 -: the same, section along A-A; in fig. 3 - the same section in BB; in fig. 4 - the same, a section on bb.

On the shaft / there is a form drum of the device, made up of several sections 2 according to the number of rolled strips, carrying two numerical disks 3 for printing units and tens. During marking, the device drum is pressed against the rolled strips by hydraulic cylinder 5 by means of lever transfer 6. The drum sections 2 and discs 3, due to friction with strips 4, turn and paint on these strips. The marking strips are supported on a pressure cylinder 7. The paint is applied to the disks with a wetting roller S immersed in a paint bath.

After marking, the drum of the device is lifted a few millimeters above the marked strips with the help of springs and remains in this position until the marking is applied to the following strips.

After each change of the roll of strips, the numbers of the units and tens indicating the sequence number of the roll must be changed. For this, the device drum rises upward until its brake discs 9 are pressed into the stationary brake pads 10, then the hydrocydinders // are actuated, turning the outer sleeves 12 of the installation roller overrunning clutches 13 towards idling. At the end of this stroke, the finger M of each clutch finds on the face cam 15 fixed on the movable part of the fixing clutch 17 fitted with the spring 16, disengaging it with the teeth of the roller overrunning clutch 13.

In the initial position, the clutch 17 does not allow rotation of the slotted half-axis 18 of the drum-type drum.

Immediately after idling of the hydraulic cylinder 11, its working stroke follows, at which the sleeve 12 rotates the clutch 13, which is coupled by means of a pinion gear to the shaft of the 20 numbering disks. Units or ten.

 The number of teeth in the locking sleeves 17 and the gear ratio of the gear wheels 19 are selected so that in one stroke of the cylinder of the hydraulic cylinder // the discs are rotated 3 units or tens with figures for one tenth of a turn.

Subject invention

Claims (2)

1. A printing device including a plate drum with numbering disks placed in it, a mechanism for mounting these disks, a colorful machine and an adjacent cylinder placed under the plate drum, characterized in that, for the purpose of marking strips, for example, steel, its plate drum is divided according to several identical sections according to the number of marked strips, each section has two numbering disks for printing only one and ten, and it has two separate remote-controlled mechanisms for setting numbering disks of units and tens in working position. 2. The printing device according to claim 1, characterized in that. each of the mechanisms for installing numbering disks in the form of a remotely controlled hydraulic cylinder and an adjusting roller overrunning clutch driven by it, freely placed on the semi-axis of a plate drum and coupled to one side