SU450859A1 - Device for cutting gauze rolls into bandages - Google Patents

Description

one

The invention relates to the textile industry.

A device for cutting gauze rolls into bandages is known, comprising a set of circular knives mounted on a drive shaft, a table for receiving rolls, a device for supplying rolls to knives, pushers for transferring rolls and a table for receiving bandages.

However, in this device, due to the imperfection of the design of the coil feeding device, there is a bias. As a result, an oblique incision is obtained or string i is separated from the edge of the bandage and the movement of the latter is disturbed when dropped, which reduces productivity and increases scrap.

In the proposed productivity increase device, there is a device for orienting the rolls when feeding them to knives that are kinematically associated with pushers, and a device for dropping bandages, located above the table for receiving bandages.

Moreover, the device for orientation

The rolls consist of carriages located one above the other, installed with the possibility of oppositely directed reciprocating motion in the horizontal plane. The device for supplying rolls to the knives has two adjustable pressure rollers located on both sides of the circular knives, and the device for dropping the bandages is made in the form of a shaft having elastic blades.

FIG. 1 shows a kinematic diagram of the device according to the invention; a side view in FIG. 2 - a detail of the endless conveyors, side view; in fig. 3 - the same cross section.

The device comprises a table 1 for receiving rolls, on which wheels 2 can reciprocate the cutter 3, having an axis 4, to which on the sides, using a groove 5, are attached levers 6, which receive a swinging movement around the hinge 7. The levers 6 are connected by connecting rods 8 with cranks 9, seat -. on disks 10, making JHoe rotating with the help of chain 11 from trans

porter 12 of the lower endless conveyors carrying the pads 13 (see Figs. 2 and 3 with the teeth 14 and slot 15.

This conveyor system is driven by chain 16 from gear 17 and

electric motor 18.

The carriage 3 can reciprocate a second carriage 19 having an axis 20 connected by levers 21 rotating on a hinge 22 and connected to fingers 23 sitting on levers 6.

Arranged one above the other, carriages 19 and 3 are installed with the possibility of an opposite-directional reciprocating movement in the horizontal plane and serve as pushers for feeding the roll to the knives.

A reflector 24 is installed at the top of the carriage 19. Through the gear transmission 2, an upper system of endless chain conveyors 26 receives motion, the sprockets 27 and 28 of which are mounted on shafts 29 and 30 (shaft 30 is tensioned).

On the frame of the device is mounted shaft. 31, carrying elastic blades 32, rotatably driven by the chain 33 from the shaft 29 and used to drop the bandages cut off from the roll.

On the inner and outer branches of the endless conveyors 12 and 26 of the device for feeding coils under the cut, there are two adjustable pressure rollers 34, 35 and a tension roller 36. The rollers 34 and 35 are located on both sides of the circular knives 37 rotating on the shaft 38 by means of a V-belt transmission 39 from the electric motor 4 O, and the set of circular knives is determined by the width of the bandages of the cut roll.

At the exit, the device has a table 41 for receiving bandages, made in the form of a non-inclined plane with a toothed surface 42, which with its teeth can enter into the slot 15 of the pads 13 of the lower carriers.

Adjacent to the inclined table 41 is a gelastastol 43 designed to receive bandages, in which the conveyor 44 moves.

During operation, the roll of gauze falls on the upper carriage 19 (in Fig. 1, the roll is shown by a dotted line, position a).

When the roll is in position

and, the carriage 19 moves to the left. At the same time, the coil on it rests on the reflector 24 and at the end of the motion it becomes on the lower carriage 3. After the carriage movement changes, the carriage 19 pushes the roll onto the receiving table 1 (position b) and with the next movement change the carriage 3 moves the coil to the lower endless conveyor 12 (position in).

Due to the presence of the pads 13 with the teeth 14 and the slot 15, the roll is correctly oriented and fed into the receiving part of the device for feeding the rolls to the knives 40 between the chains of the conveyors 12 and 26..

When the roll is cut into bandages, the latter, along the inclined plane of the table 41, are scattered onto the conveyor belt 44 and the SW. They are last treated to the device for the packaging of bandages (not shown in the drawing). At the same time, the elastic blades 32, when rotated, knock down the bandages, in which the main thread is accidentally clamped, separated from the bandage.

For the purpose of free access to the disk knives 37, the drive shaft 38 is mounted above the device for feeding rolls to the knives.

Present invention

Claims (4)

1. A device for cutting mar1li rolls into bandages containing a set of discs knives mounted on a drive shaft, a table for receiving coils, a device for feeding coils to knives, pushers for transferring coils and a table for receiving bandages, characterized in that, in order to increase productivity, the device is equipped with a device for orientation of coils during feeding them to knives, kinematically associated with pushers and a device for dropping bandages, located above the table for receiving bandages. 2. The device according to claim 1, characterized by the fact that the device for orientation of the rolls, when fed to the knives, consists of one below the other carriages installed with the possibility of directional reciprocating: movement in a horizontal plane. 3. The device according to claim 1, wherein the device for dropping the bandages is in the form of a shaft having elastic blades. 4. The device according to claim 1, differing from the fact that the device for feeding rolls to the knives has two adjustable pressure rollers located on both sides of the circular knives. d LLAA (Pu2.2 13 (Riga.Z