RU179138U1 - Paper Cutting Device - Google Patents

Abstract

The paper-cutting device relates to printing equipment, and specifically to paper-cutting machines used in small printing companies. A paper-cutting device containing a bed, a cutting device, characterized in that it additionally has two centering cones, a pinch roller, a marking plate, two frame sides and two rings .Application of the developed sample showed the possibility of cutting paper web from the remnants of paper on the bushings after unwinding the rolls of necessary sizes for banner printing on the CPM, in increasing labor productivity by 20-25% and production efficiency. When cutting, highly qualified personnel are not involved, and cost is reduced.

Description

The utility model relates to printing equipment, and specifically to paper-cutting machines used in small printing enterprises.

Pulp and paper mills produce paper wound around sleeves and cut into rolls of specific sizes.

The most common roll widths are: 600 mm, 620 mm, 700 mm, 840 mm.

In the process of preparing paper at printing enterprises, at sites for preparing paper for printing, depending on the specific order for the production of printing products, it is unwound and cut to specific sizes. After the final unwinding, the remainder of the unwound paper remains on the roll sleeve, which, as a rule, is disposed of for recycling. However, in small printing enterprises using digital printing presses (CPMs) with the function of banner printing (1200 × 300 mm), these paper residues are of industrial interest.

These MTCs include Xerox - Versant 80 Pro / Xerox Versant 80 Press, Versant 2100 Press, Konica Minolta - C6000, C7000, C1060, C1070, C224e machines (see the operating instructions for the above machines).

When cutting paper for the production of printed products of the required sizes, the ADAST MAXIMA MS 115 series paper-cutting machine is used (see http: // post - reference / adast-maxima-ms-115-description-and-technical-characteristics. 04/02/2017 ) The well-known paper-cutting machine has high productivity and provides professional cutting of large volumes with a cut width of 115 mm, which does not meet the requirements for preparing paper for banner printing. Therefore, this paper cutting machine is not advisable to use in small printing enterprises.

The closest analogue of the utility model is a paper-cutting device containing a bed with a shaft and a pressure roller mounted on it and a cutting device disclosed in § 1622116 A1, 1/26, 1/26, 1/23/1991 - 4 l. /one/.

The device relates to paper processing and can be used in industry for cutting roll paper into sheets of a given format.

However, it is bulky, takes up a lot of space and has a high cost.

This device is closest to the proposed utility model and is taken as a prototype.

The known device comprises a frame with a shaft and a pressure roller mounted on it, and a cutting device, etc.

The features common with the prototype is a bed and a cutting device.

The set of essential features sufficient to solve a technical problem and to obtain a technical result provided by a useful model in all cases covered by the scope of legal protection includes: a bed, a shaft, a cutting device, two centering cones, a pinch roller, a marking plate, two sidewalls of the frame and two rings.

The objective of the utility model is to provide paper cuts of the required size for banner printing in small-scale printing production at small printing enterprises.

The technical result of the proposed utility model is expressed in the ability to cut the paper web from the rest of the paper on the bushings after unwinding the rolls of the required width and length for banner printing on the CPM, in increasing labor productivity, production profitability, expanding the range of printed products.

Tests of the developed and manufactured sample showed the possibility of cutting paper web from paper residues on the bushings after unwinding the rolls of the required sizes for banner printing on the CPM, in increasing labor productivity by 20-25%, production profitability, expanding the range of printed products.

The essential features that characterize the paper-cutting device are: a bed, a shaft, a cutting device, two centering cones, a pressure roller, a marking plate, two sidewalls of the bed and two rings.

The bed is made with sidewalls in the form of a frame made of square pipes fixed to each other and consisting of four longitudinal pipes, five transverse pipes and two shortened longitudinal pipes fixed to six vertical posts, and in the front of the frame the upper longitudinal pipes are bent and form an arc for the installation of the shaft, which is limited from axial displacement by the sidewalls of the bed, while the device is equipped with two rings for fastening the pressure roller, welded on the upper longitudinal pipes, the diameter of the cat oversize exceeds the diameter of the pinch roller by 10-15 mm, with a marking strip with a ruler, bolted to the upper longitudinal pipes of the bed, and two centering cones mounted on the shaft with nuts and washers and made of hardwood with an outer diameter of 200 mm and an inner corresponding to the diameter of the shaft, while in the centering cones holes are made whose diameter is 2 mm greater than the diameter of the shaft, and the shaft is made of a round pipe, at the ends of which a thread is cut for the threads of nuts.

The shaft is made of a round tube, the outer diameter of which corresponds to the inner diameter of the centering cones, a pipe thread is cut at the ends of the shaft for the threads of nuts, which ensures fastening of paper on the paper sleeve and free reeling of paper, from axial displacement the shaft is limited by the sidewalls of the frame.

Bed pipes are fixed to each other by a welding joint.

The sidewalls of the bed are made of L-shaped sheet metal and are fixed with two screws to the shortened longitudinal pipes.

The pinch roller is made of a round pipe with an outer diameter of 20 mm.

The centering cones are mounted on the shaft, and they are made of solid wood and have an outer diameter of 200 mm, and the inner one corresponds to the diameter of the shaft, holes are made in the centering cones with a diameter of 2 mm greater than the diameter of the shaft, and the centering cones are mounted on the shaft with nuts through washers , which ensures the alignment of the paper sleeve and prevents the longitudinal movement of the paper sleeve together with the centering cones along the shaft.

The pinch roller is made of a round pipe with an outer diameter of 20 mm. When preparing the paper-cutting device for operation, the pressure roller is inserted into the rings, which provides a change in the direction of movement of the paper web, its free winding and holding the paper during cutting.

The marking plate provides the specified knife settings, and is bolted to the upper longitudinal pipes, it is made of a metal plate 3 mm thick, it has a groove in the central part that is 600 mm long and wide for mounting screws, a ruler is attached to the marking plate or marking is applied in mm .

The cutting device consists of a knife and fastening elements, and the knife is bolted to the vertical corners, which, in turn, are attached to the longitudinal corner, which has two threaded holes for bolted connections with a marking plate.

The utility model is illustrated by drawings (Fig. 1, 2, 3 and 4), which shows a paper-cutting device containing a bed, a shaft, a cutting device, two centering cones, a paper sleeve, paper on a paper sleeve, a pressure roller, a marking strip, two sidewalls beds and two rings.

In FIG. 1 shows a paper-cutting device, general view. In FIG. 1 square pipe is represented by a single line with a thickness of 0.6 mm, and a sheet of paper is shaded in dark color.

In FIG. 2 shows a paper-cutting device. Bed. Square pipes are represented by one 0.6 mm thick line.

In FIG. 3 shows a paper-cutting device. Paper fastening on the paper sleeve on the shaft.

In FIG. 4 shows a paper-cutting device. Cutting device.

In the drawings, the notation:

1 - Bed.

2 - Val.

3 - Centering cone.

4 - Paper sleeve.

5 - Paper on a paper sleeve.

6 - Pressure roller.

7 - Longitudinal pipe.

8 - Marking strip.

9 - Cutting device.

10 - Sidewalls of the bed.

11 - Ring.

12 - Shortened longitudinal pipe.

13 - Nut.

14 - Washer.

15 - Cross pipe.

16 - Upright.

17 - Knife.

18 - Vertical angle.

19 - A longitudinal angle.

The bed 1 is intended for fastening the elements of the Paper Cutting Device and is made in the form of a frame made of square pipes fixed to each other by a welding joint.

The frame of the frame 1 consists of four longitudinal pipes 7, five transverse tubes 15 and two shortened longitudinal pipes 12, mounted on six vertical posts 16. In the front of the frame 1, the upper longitudinal pipes 7 are bent and form an arc for the free installation of the shaft 2, which is from the axial the displacement is limited by the sidewalls of the frame 10. The sidewalls of the frame 10 are made of sheet metal of a L-shaped form and are attached with two screws to the shortened longitudinal pipes 12 of the frame 1.

To ensure the fastening of the pressure roller 6 on the upper longitudinal pipes 7, rings 11 are welded, the diameter of which exceeds the diameter of the pressure roller 6 by 10-15 mm.

The distance between the axis of the shaft 2 and the axis of the pinch roller 6 is equal, with the maximum planned paper size on the paper sleeve 5, with a diameter of, for example, 600 mm, is 300 mm plus 200 mm.

Marking plate 8 is bolted to the upper longitudinal pipes 7.

The shaft 2 is designed to fasten paper on the paper sleeve 5 and to ensure free reeling of paper. The shaft is made of a round pipe whose outer diameter corresponds to the inner diameter of the centering cones 3. At the ends of the shaft 2, a pipe thread is cut for the threads of the nuts 13. From axial displacement, the shaft 2 is limited by the sidewalls of the frame 10.

The centering cones 3 (two pcs.) Are designed to center the paper sleeve 4 mounted on the shaft 2. The centering cones 3 are made of solid wood and have an outer diameter of 200 mm, and the inner one corresponds to the diameter of the shaft 2. In the centering cone 3 there is a hole with a diameter of 2 mm larger than the shaft diameter. The centering cones 3 are mounted on the shaft 2 with nuts 13 through the washers 14, which prevents the longitudinal movement of the paper sleeve 4 together with the centering cones 3 along the shaft 2. The centering cones 3, nuts 13 and washers 14 are installed on both ends of the shaft 2.

The use of the material from which the centering cones 3 are made significantly increases the convenience of work, allows you to comply with safety requirements and not involve highly qualified personnel in the work on the device.

The pinch roller 6 is used to direct the movement of the paper web, to ensure free paper reeling and holding the paper during cutting. The pressure roller 6 is made of a round pipe according to GOST 8731-74 and its outer diameter is, for example, 20 mm. When preparing the paper-cutting device for operation, the pressure roller 6 is inserted into the rings 11.

The marking strip 8 is designed to provide a given installation of the cutting device 9. It is made of a metal plate 3 mm thick. In it, in the central part, a groove is made with a length of 600 mm and a width for fixing screws. On the marking plate 8, a ruler is attached or marking is applied in mm.

The cutting device 9 consists of a knife 17 and fastening elements. As the knife 17 is used, for example, the blade of a clerical knife.

The knife 17 is bolted to the vertical corners 18, which, in turn, are attached to the longitudinal angle 19. In the longitudinal angle 19 there are two holes with threaded threads for bolted connections with a marking plate 8.

The safety of using the paper-cutting device is ensured by the position of the knife with its tip pointed down by the cutting edge towards the feed web of paper.

Work paper cutting device.

The paper-cutting device is installed on a flat horizontal surface free of foreign objects and provide normal lighting for the workplace.

The shaft 2 with paper on the paper sleeve 5 is freely mounted on the arcs of the upper longitudinal pipes 7, with the possibility of ensuring free winding of the paper web. The position of the paper sleeve 4 on the shaft 2 is regulated by the centering cones 3 mounted on both ends of the shaft 2. The centering cones 3 are mounted on the shaft 2 by the nuts 13 through the washers 14, which prevents the longitudinal movement of the paper sleeve 4 together with the centering cones 3 on the shaft 2. From axial displacement of the shaft 2 is limited by the sidewalls of the frame 10.

The paper sheet is pulled by hand from the sleeve of the paper 4 to the marking plate 8. Then, to direct the movement of the paper web, to ensure free paper reeling and to hold the paper during cutting, the pinch roller 6 is inserted into the rings 11.

A longitudinal cut of the paper web is carried out with a knife 17 by manual drawing of the paper web. A transverse cut is made with scissors, followed by ensuring the exact size of the prototype.

The use of the developed sample showed the ability to cut the paper web from the remaining paper on the bushings after unwinding the rolls of the required sizes for banner printing on the CPM, in increasing labor productivity by 20-25 percent, profitability and cost-effectiveness of production. When cutting, highly qualified personnel are not involved and cost is reduced.

Claims (4)

1. A paper-cutting device containing a bed with a shaft and a pressure roller mounted on it and a cutting device, characterized in that the bed is made with sidewalls in the form of a frame made of square pipes fixed to each other and consisting of four longitudinal pipes, five transverse pipes and two shortened longitudinal pipes mounted on six vertical posts, and in the front of the bed, the upper longitudinal pipes are bent and form an arc for the installation of the shaft, which is limited from the axial displacement of the sides inines of the bed, while the device is equipped with two rings for attaching the pressure roller, welded to the upper longitudinal pipes, the diameter of which exceeds the diameter of the pressure roller by 10-15 mm, a marking plate with a ruler, bolted to the upper longitudinal pipes of the bed, and two centering cones, mounted on the shaft by means of nuts and washers and made of hardwood with an outer diameter of 200 mm, and an inner one corresponding to the diameter of the shaft, with holes made in the centering cones, diameter k toryh 2 mm larger than the diameter of the shaft, wherein the shaft is made of a circular tube, the ends of which is threaded to screw nuts. 2. The device according to claim 1, characterized in that the bed pipes are fixed to each other by a welding joint. 3. The device according to p. 1, characterized in that the sidewalls of the frame are made of sheet metal of a L-shaped form and are fixed with two screws to the shortened longitudinal pipes. 4. The device according to p. 1, characterized in that the pinch roller is made of a round pipe with an outer diameter of 20 mm

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