SU38105A1 - Device for cutting the ends of the fabric flooring - Google Patents

Description

It is known to use the moving HS knife blade for cutting, etc., as well as the automatic raising of knives to the height of the fabric layer after cutting is not novel. In the proposed device for cutting the ends of the fabric flooring, the cutting apparatus consists of rulers mounted on movable rods, made 90 ° pivoting and serving as guides for the carriage with a knife. In order to clamp the fabric, a ruler with needles was turned around the hinge.

In FIG. 1 shows a cross-section of the device; FIG. 2 is a side view of the device.

A bar 2 is attached across the cut-out table to the bottom of the board 1, which serves as the basis of the device.

Brackets 3 are screwed to bar 2, screwed together with guides 4, cast together with shaft 5 shaft supports, at the ends of which gears 6 are mounted, handwheels 7 for rotating the shaft and ratchet 8.

In the guides 4 there are round movable rods 9, into which the gear racks 10. are embedded, which engage gears 6.

(27)

When turning the handwheels 7, the gears 6 also rotate, which, when coupled with the racks 10, cause the gears to rise.

In order for the rods 9 not to be lowered themselves, a ratchet 8 with a doggie 11 is installed. In order to work faster, one of the dogs can be turned off at the request of the worker. In order for the rods to not rotate in the guide bearings, there is a key 12, and a keyway in the rods themselves. At the upper ends of the rod, a square piece 13 is welded to which the strip 14 is bent from iron, having slots in which the axes 15 of the upper ruler 16 are inserted; the latter can be rotated 90 °. The upper rulers 16 serve as guides along which the carriages 17 with knives 19 secured in them with screws 18 move. The carriage movement is limited on one side by the bow 20, and on the other side by a rectangular rod 21, which, if necessary, remove the carriage be flung n the hinge 22 to the side.

In order to see how the carriage strikes the limiter 20-21, the latter is equipped with

spring buffers 23 and 24. For the convenience of movement of the carriages, they are equipped with a handle 25. On the bent sticks of the strip 14 there is a lower line 26, which can be rotated with the help of a handle 27 around 90 around the hinge 28.

The underside of the ruler 26 is provided with a series of needles 29.

In order for the upper ruler not to strike the guide 4 during its turn, a spring brake 30 is installed.

The process of the device is as follows. In the installed device, both upper rulers 16 are brought into a vertical position by retracting the carriages 17 to the ends of the upper rulers, which, with their gravity, bring them to such a position. Then, the end of the piece of material is taken and dragged over the bottom ruler 26 to the previously noted length. Thereafter, both of the top rulers 16 are brought to a horizontal position; the material is pulled between the rulers by means of teeth placed on the upper rulers, and when moving the carriages 17 is cut with a knife 19. The movement of one of the carriages advances the movement of the other and the first carriage is previously moved away from its final point to the middle of the table, and the lagging carriage moves to full cutting a strip of material, i.e., calling at the point where the cutting carriage’s knife has finished cutting. Thereafter, the upper rulers 16 are again brought to a vertical position in the same manner. Then, turning the ruler 28 with the handle 27, the face of the cut matter falls under the lower ruler 26 and is pinned with needles 29 to the table top, after which the operation is repeated.

As the thickness of the flooring increases, the entire structure is raised with the aid of the toothed rails 10 and gears 6, by rotating one of the two handwheels.

Depending on the width of the fabric, the work is done with one or two knives.

At the end of the operation, the upper and lower rulers are taken out, and the lowering posts are up to their original position.

The subject matter of the invention.

1. A device for cutting the ends of the fabric flooring, provided with a knife guide with a ruler and a device for lifting the cutting unit to the thickness of the layer of flooring, characterized in that the cutting unit consists of 9 rulers 16 fixed on movable rods, rotated 90 ° and serving guides for carriage 17 with knife 19.

2. With the device indicated in clause 1, the use of buffers 23 and 24 to soften the blows of the carriage 17 with the stop against the limiter 20-21.

3. With the above in paragraphs. 1 and 2, the device is used to pivot around a hinge 28 of a ruler 26 with needles 29, intended for at. fabric to the table.

,.: -,: -, rrt:,. n2 i. V / g JSW-, V;

„.J, -

5 I- .li.-t; -: - J; -4 - li-ili,

 f

OK)

I .W / -,

.- i - /

 - (- v

 iTip nifr

.l

one