SU1701519A1 - Apparatus for cutting of rolled material - Google Patents

Abstract

The invention relates to a device for cutting web materials, preferably fiberglass with an uncured binder. The purpose of the invention is to simplify the design, increase productivity and quality of products. The installation comprises a frame, mechanisms for feeding and tensioning the material, a table with a slot for the passage of the knife, a carriage with a circular knife mounted on it, a drive and a table for receiving the cut blanks. The diameter of the drive roller of the tensioning mechanism is equal to 1.03-1.06 of the diameter of the drive roller of the feed mechanism, and the wall of the table slot, located on the side of the tensioning mechanism, is made with a bevel at an angle of 12 to 18 ° C. to the surface of the table. 1 hp f-ly, 3 ill.

Description

The invention relates to devices for cutting rolled polymeric materials, preferably fiberglass with an unobstructed binder, into lengths of length.

A device for transverse cutting of a material, comprising a reciprocating carriage, with a rotating rotary cutting knife mounted on it, and an automatic control system are known. For the mechanical cleaning of the knife, a solvent bath is provided with a drive for moving it.

The disadvantages of the known device are low productivity, the lack of a mechanism for removing the cut billet stuck to the parts of the device at the time of cutting, the use of a rotating knife, since when the knife contacts the material being cut

the rotation time causes a sharp heating of the blade, as a result of which the adhesive layer of the adhesive layer melts, intensively sticks to the knife and polymerizes. Solvent cleaning is ineffective, and its vapors are harmful.

Closest to the present invention is a device for cutting sheet materials, comprising a bed, a system of rollers for feeding material, a table, a carriage with a circular knife mounted on it, a cleaning element and an automatic control system.

The disadvantages of this device include the complexity of the design, the increased amount of scrap due to wrinkling when unwinding the material, and the installation performance is low.

The aim of the invention is to simplify the design, increase production

with

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and the quality of the ingestion of goods.

This goal is achieved by the fact that, in an installation for cutting web material, predominantly fiberglass with an adhesive layer containing a frame, a table with a knife under the knife, feed mechanisms and a | T & K material with drives, a carriage with a disk knife and a receiving table installed on it, the diameter of the drive roller of the tensioning mechanism is 1.03-1.06 of the diameter of the drive roller of the feed mechanism, and the wall of the table slot, located on the mechanics side of the tension, is made with bevel at an angle of 12 - 18 ° la |.

to a hundred

With If L 12, the edge of the cutting material abuts against the wall of the slot 18, which prevents further material advancement in rolls 14 and 15.

At (O 18 °, the edge of the cut material rests on the bevel of the slot 18, which also impedes the advancement of the material.

When cutting sticky materials to eliminate sticking of the fabric, the pressure rolls 12 and 15 are protected, for example, with a fluoroplastic coating. Cutting switches 19 and 20 are located on guide 3. The carriage 4 is kinematically connected with the drive 21, and the rolls 11 and 14 with the drive 22.

The installation for cutting rolled materials has a receiving table 23 dl from

FIG. 1. shows the installation for 2Q cut pieces.

cutting material into lengths; the general view in FIG. 2 shows I in FIG. one; in fig. 3 - installation, top view.

The installation for cutting the rolled material contains a frame 1, a support 2, a guide 3, a carriage 4 on which the disk knife 5 is fixed, stationary during cutting, with a discrete rotation mechanism 6. On the guide 3 p there is a turning stop 7 "

The apparatus also comprises a device 8 for securing the web material 9 provided with a brake 10.

Device work at once.

A roll of fiberglass into the device 8, the fixed end of the roller 12, and the help of a pneumatic cylinder

I

The actuator 9 is turned on and supplied to the zone of the pre-radial 9, due to the action of the device 8 fixed rolls 11 and 12,

The material feed mechanism includes 35 a free end of a glass cloth gripping roller 11, a pressure roller 1f and a pneumatic cylinder 13 for vertical movement of the pressure roller 12. I

The mechanism of tension material including -. ,,

the drive roller 14, the pressure roller 15 and the pneumatic cylinder 1b for the vertical movement of the roller 15.

The diameter of the drive roller 14 (D) of the tensioning mechanism is 1.03 g. 1.06 of the diameter of the drive (B ") feed mechanism.

With D "Ј 1.03 D Ј tension of the material is insufficient, resulting in poor cut quality.

At D 1.06 D2, deformation and subsequent rupture of the material occurs.

In addition, the apparatus for cutting web material comprises a table 17 with a slot 18 for passing the knife 5. Sten 50

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slot 18, located on the side of the drive roller 14,

made with a bevel at an angle Cf 12-1b to the surface of the table 17.

The rollers 14 and 15 are created and additional tension is created due to the rotation of the rollers 11 and 14 having the same diameters with the same speed. In so doing, the fiberglass is pulled over the table. As the material passes through the measuring length, its feed is automatically shut off and at the same time the cutting drive 21 is turned on. During the movement of the carriage 4 with the knife 5 fixed on it along the guide 3, the material 9 cuts in the transverse direction, after the carriage 4 is in contact with the end switch 19, the drive 21 is turned off. 3, this drive is turned on 22, and the material is fed back to cutting. Cut off the billet enters the table 23.

With a projectile of dimensional length, the process is repeated, but already when the carriage 4 with the knife 5 moves in the opposite direction to the initial position until the final switch 20.

The device works as follows.

A roll of glass cloth 9 is installed in the fixing device 8, its free end is tucked under the pressure roller 12, and the drive roller 11 is pressed by means of a pneumatic cylinder 13.

I

The actuator 22 is turned on, and the material 9 is fed to the cutting zone. This creates a pre-tension of the material 9 due to the action of the brake 10 of the device 8 for securing and rotating the rollers 11 and 12.

5 free end fiberglass clamps ,,

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0

The rollers 14 and 15 are created and additional tension is created due to the rotation of the rollers 11 and 14 having the same diameters with the same speed. In so doing, the fiberglass is pulled over the table. As the material passes through the measuring length, its feed is automatically shut off and at the same time the cutting drive 21 is turned on. In the process of moving the carriage 4 with the knife 5 fixed on it along the guide 3, the material 9 cuts in the transverse direction, after the carriage 4 contacts the end switch 19, the drive 21 turns off. 3 this time, the actuator 22 is turned on, and the material is again fed to the cutter. Cut off the billet enters the table 23.

With a transducer of measured length, the process is repeated, but already when the carriage 4 moves with the knife 5 in the opposite direction. reset to the limit switch 20.

sixteen

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23

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Claims (2)

Claims ^ 0 1. Installation for cutting rolled material, mainly fiberglass with a non-hardened binder, containing a bed, a table mounted on it with a slot for a cutting element, a drive mechanism for feeding material in the form of a drive and a clamp! rolls, a drive mechanism for tensioning the material in the form of drive and pressure rolls, a carriage with a cutting element in the form of a circular knife mounted on it and a receiving table, characterized in that, in order to simplify the design, increase productivity and quality of the products obtained, the diameter of the drive roll of the tension mechanism equal to 1.03-1.06 of the diameter of the drive roll of the feed mechanism. 2. Installation according to p. ^ Characterized in that, in order to increase reliability, the table slot wall located on the side of the tension mechanism is made with a bevel at an angle of 12 - 18 ° to the table surface. Figure 2 Fig.Z