SU654930A1 - Device for automatic cutting of copies in copying apparatus - Google Patents

Description

one

The invention relates to copying equipment, in particular to automatic devices for cutting copies of documents in copy machines.

Copiers are known with devices for cutting copies of documents 1 which have a sensor in the transport channel. originals, paper feed mechanism from the roll, the mechanism of transverse cutting of paper tape. The transverse cutting sensor and knives in such apparatuses are located at the same distance from the optical axis of exposure. When exposed to the sensor of the leading edge of the original sensor includes a mechanism iodachi paper. When the rear edge sensor acts on the original 1a, the sensor stops the paper feed mechanism and switches on the cross-cutting mechanism of the paper tape.

However, the known devices do not provide complete cutting of copies of documents but not, and the installation of an appropriate roll of paper leads to a decrease in the performance of the stationer.

The aim of the invention is to provide full B jipe3Ki copies of any standard formats in copiers.

To achieve this goal in a known device for automatic copy cutting.

In the copy machine, containing a means of control of the front and rear edges of the original, associated with the mechanism of non-chopping knives, a mechanism is introduced

cutting tool containing a setting plate with a switch located along the movement of the original, and a cutting organ connected to the plate consisting of a circular knife and a pair of disc blades interconnected by means of an electromagnet, and two pairs of circular knives for cutting side fields horse, and the mechanism of cross cutting

consists of two cutting elements, each of which is associated with a means of controlling the leading and trailing edges of the original.

FIG. 1 shows the proposed device, a general view; in fig. 2 is a view along arrow A in FIG. 1 (originals feed channel with master film and sensors); in fig. 3 - slitting mechanism;

in fig. 4 - paper nodachi mechanism

mites in cutting devices; in fig. five -

cross cutting mechanism; in fig. 6 -

view along arrow B in FIG. five; in fig. 7 is a block diagram of the proposed device.

The device for automatic cutting of copies contains a setting bar 1 with a switch 2, which, when the button 3 is pressed, exits the feeding table and acts on switch 2. The bar is located in the middle of the feeding table 4 along its width and is mounted along the optical axis of the light-copy machine.

In the channel of transportation of originals, contact rollers are placed 5. The rollers are installed from the edges of the channel to / 4 of its width.

The cutting mechanisms are placed in a single unit 6, which is mounted on an apparatus in the exit zone of a paper tape with a copy.

IMoryT knives can be of any design, for example in the form of plates with sharp cutting edges.

The longitudinal cutter mechanism comprises a free rotation shaft 7 with circular knives 8 and 9, which roll in bearing assemblies 10 on the sidewalls 11 of block 6, plate shears 12 and 13 on electromagnetic drives 14 and 15, which are attached to the roll 16. The beam is screwed to nuts the sidewalls 11. The width of the circular knife 8 is equal to the width of the setting bar 1. The central pair of knives orients toward the optical axis of the apparatus. The disk knives 8 and 9 and the electromagnetic drives 14 and 15 with the plate knives 12 and 13 have the possibility of dislocation along the shaft 7 and the beam 16.

The paper feed mechanism with copies to the cutting mechanisms contains a rubber-coated drive shaft 17 mounted on the existing cone 18 of the copier; a clamping shaft 19, having a longitudinal rolling of a cylindrical surface, which is pressed against the drive shaft} 17 by springs 20; guide rails 21, fastened with screws to the side panels of the block 6.

The cross-cutting mechanism of copies contains a fixed knife 22 fixed on the film with 23 bolts, which is attached to the sidewalls 11 of block 6, a pair of 24 bolted to the beams 25. The beams are fixed in bearing assemblies 26 and 27 and connected to the core 28 of electronic magnetic drives 29 by rods thirty.

When paetol 4 originals of 22 or 24 formats are fed, the setting bar 1 sinks into the 4-feed table and acts on the switch 2, which through the signal delay unit 31 to the moment the front edge of the copy approaches the cross-cutting zone, includes electromagnetic drives 29 of the blades 24. Knives 24 actuated at the same time, produced a piece of paper tape at the front edge of the copy and returned to its original position.

With the release of the original from the contact rollers 5 rollers (or one of them)

through the delay unit 31 to the moment when the back edge of the copy approaches the cross-cutting area, electromagnetic actuators 29 are turned on, which simultaneously drive the knives 24. The knives cut a piece of paper tape along the edge of the blade and return to their original position.

When serving on the table 4 originals, the width is less than or equal to / 2 width

The originals transport channel, for example, 12 or 11 formats, by pressing the button 3, the setting bar 1 moves out of the table and the originals are oriented along the setting plate. Switch 2

through the signal delay unit 31, by the time the copies arrive, it switches on the electromagnetic drive 14 of the central plate knives 12. The plate knives 12 interact.

with a central disk knife 8 and a fractional cutting of the paper tape 32 with horses along the side borders of the copies.

Upon further passage through the feed channel, the originals act on the roller contacts 5, which, through the block 31, delay the front edges of the copies to the cross-cutting zone to turn on the electromagnetic drives 29, which simultaneously drive the blades 24.

The knives 24 are driven autonomously, each with their own drive, strictly following a command from their sensors 5, producing a piece of paper tape at the front edges of the copies, and returning to their original position.

At the time of origin of the originals from under the contact rollers 5 rollers through the block 31 of the delay to the time of approach of the rear edges

Electromagnetic drives 29 of knives 24 are included in the cross-cutting zone. Knives 24 operate autonomously, each driven strictly by a command of their sensors 5, cut a piece of paper tape along the rear edges of the copies and return to their original position.

If necessary, the segments of the extreme edges of the copies of the switches 33 located on the control panel of the copy machine, include electromagnetic actuators 15 of the plate knives 13.

According to the normative material of the edition

blueprint works, with a 5-day working week, 5000-6000 format 11 drawings are copied on a Ba-102 or SKA type blueprint machine per work shift. One cutter per work shift cuts out about 1000 copies of the 11th format. Thus, the use of one device for automatic cutting of copies allows freeing up 5-6 carvers, which gives a saving of 6000-7000 rubles. at

year from one device.

Claims (1)

Invention Formula A device for automatic cutting of copies in a copying machine, comprising means for controlling the front and rear edges of the original, associated with a cross-cutting mechanism for copies, characterized in that, in order to ensure full cutting of copies of any standard formats, it has a longitudinal cutting mechanism containing the feeding table of the apparatus, a setting bar with a switch, located along the movement of the original, and a cutting organ connected to the bar consisting of a circular knife and a pair of plate knives connected ezhdu an electromagnet means, and two pairs of circular blades for cutting the side margins of the copies, and the cross-cutting mechanism consists of two cutting elements, each of which is associated with the means for controlling the front and rear edges of the original. Information sources, taken into account in the examination 1. US patent number 3797931, cl. 355-13, 1974. Soag. 2 / 6