SU1224139A1 - Paper punching device - Google Patents

Description

The invention relates to devices for perforating paper materials, single sheets or tapes and can be used in the pulp and paper and printing industry.

The aim of the invention is to improve the usability and reliability.

FIG. 1 shows the device, general, its form; in fig. 2 - the same, top view; in fig. 3 shows section A-A in FIG. one.

The paper punching device comprises a base which is made in the form of a rectangular plate 1 and two plates 2, which are fixed on the plate 1 parallel to it at its ends along the direction of movement of the paper and rigidly connected, for example, by means of a gasket 3 and screws 4, forming the gap between plate 1 and plates 2 for paper.

On the base, a slider is installed, made in the form of a rectangular plate 5 with two flat elements 6, which are rigidly connected to the ends of the plate 5c using a slider 7.

The elements 6 are connected to the plate 5 in parallel with it and forms grippers with which the slider is mounted on the base, covering it from above, with the possibility of longitudinal movement along the base as along guide rails.

Along the edges of the slider, holes are made in which the sleeves are rigidly fixed.

In the rectangular plate 5 of the slider, there are fixed guide bushes 8, in which punches 9 are loaded, loaded with springs 10. In flat elements of the slider 6, bushings 11 are fixed, which serve as dies.

The paper punching device has a mechanism for pressing punches and paper movements, which is made in the form of a movable plate 12, a pressure plate 13 and a stand 14 with a cam 15 and a handle 16.

A movable plate 12 of rectangular shape is installed above the plate 5 of the slide with the possibility of its transverse movement. To prevent longitudinal displacement of the plate 12 and the direction of its transverse movement, restrictive screws 17 are used, which are fastened to the base plates 2.

On the movable plate 12, in its middle part, the rack 14 is rigidly fixed. On it with the help of axis 18 and stop 19 there is a cam 15 with a handle 16. In the rack 14 a pressure plate 13 is installed with the possibility of its vertical displacement when exposed to a cam 5 or springs 10 punches 9 with which the plate 13 interacts.

For the sleeves 11, the dies and punches 9 in the plate 1 and the base plates 2 are made with longitudinal grooves 20, and in the movable plate 12 for the guide sleeves

five

five

0

0

five

0

five

five

0

8 punch 9 are made oblique groove; .. D The upper bushings 8 are secured by the lower part in the slider, in its rectangular plate 5, and the upper part of the bush 8 is placed in the oblique groove 21 of the movable plate 12.

The lower sleeves 11, with their lower part, are secured in the flat elements 6 of the slider, and the upper part of the sleeves 11 are placed in the longitudinal groove 20 of the base plate 1.

Thus, the sleeves 8 and 10 are fixed in the slider, the longitudinal grooves 20 are made at the base and oblique grooves 21 in the movable plate 12.

The longitudinal axis of symmetry of the oblique grooves 21 is with the direction of movement of the paper a certain angle, for example 45 °, as optimal. When the same step size of the perforations change the angle leads to a change in the length of the oblique grooves 21.

In the initial, first, position of the axis of the punches 9 should be in a vertical plane drawn through the longitudinal axis of symmetry of the pressure plate 13 to prevent it from tilting when pressing the cam 15.

To set the perforations pitch in the base plates 2, adjustable slide stops are installed, made in the form of a pair of screws 22 with locking locknuts.

A plastic spring 23 is installed on one of the base plates 2, behind the movable plate 12 along the movement of the paper, in contact with the paper tape.

The paper punching device operates as follows.

With the help of adjusting screws 22 set the stroke of the slide corresponding to a specific pitch of perforations. The base is fixed on the desktop.

Insert the paper into the gap between the plate 1 and the base plates 2 and advance until the end of the paper exits the device. To obtain perforations on the paper, the handle 16 is turned on the axis 18 of the cam 15. The latter is pressed on the pressure plate 13, which, being lowered down, presses the heads of the punches 9. The punches

9 press the paper against the dies 11 and push it, forming a perforation on it.

Holding the handle 16 in the same position, move it to the left until it stops. In this case, the movable plate 12 moves to the left, acts with oblique grooves 21 on the sleeves 8 of the punches 9, which, together with the sleeves 11 of the dies, move forward along the longitudinal grooves 20 by the step size of the perforations. At the same time, the paper is moved by punches.

The rectangular slider plate 5 together with the sleeves 8 and 11 installed in it and the punches 9 move forward until

stopping on the stops 22 and the slider stops.

The handle 16 is released, and the springs 10 lift up the punches 9 and the pressure plate 13. The paper is released, and the cam 15 with the handle 16 occupies the initial position limited by the stop 19. The handle 16 moves to the right. At the same time, the movable plate 12 moves to the right. With oblique grooves 21, acting on the sleeves of the 8 punches, it moves the slider back with the sleeves 8, 11 and punches 9 with springs 10 installed. .

Punching is performed by repeating similar motions at each step of the perforations. If it is necessary to change the perforation pitch, install the screws 22, the position of which determines the magnitude of the slide stroke.

Thus, when working with a perforator, holes are punched in sequence by turning the cam 15 and moving by the perforation step. The extreme positions of the moving elements during operation are fixed with the aid of the oblique grooves 21 of the moving plate 12 and the adjusting screws 22.

The punching device is made of flat elements, the punching and moving of the paper is provided by simple movements in the linear directions of the movable plate and the slide. The direction of movement is achieved by longitudinal and oblique grooves and limiters in the form of screws. The design of the device provides ease of use and reliability of its work.

(rig 2

and Sy / cfffa

 K / lVx

20

V / phage.Z

Compiled by E. Petrushova

Editor A. GulkoTehred I. VeresKorrektor I. Erdeyi

Order 1873/15 Circulation 655Subscription

VNIIPI USSR State Committee

for inventions and discoveries

1G3035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

V / phage.Z

Claims (2)

1. DEVICE FOR PUNCHING PAPER, containing a base made in the form of a plate with plates fixed at its ends with longitudinal grooves and forming a gap for paper, mounted on the base of a slide, spring-loaded punches, dies and a mechanism for pressing punches and moving paper, including a stand with fist * 1 com, characterized in that, in order to improve ease of use and reliability, the mechanism for pressing the punches and moving the paper contains a movable plate with slanting slots located on the slider and is installed a pressure plate contacting the punches for interacting with the cam, the strut with the cam mounted on the movable plate, the punches have guide bushings fixed to the lower part of the slide, and the upper part are located in the oblique grooves of the movable plate, the matrix is made in the form of bushings , the lower part fixed in the slider, and the upper part located in the longitudinal grooves of the base. 2. The device according to π. 1, characterized in that it has slider stroke limiters mounted on the base with the possibility of contact with the slider. SU. „1224139 FIG]>