RU1768464C - Device for feeding band material - Google Patents

Abstract

Usage: the invention relates to devices for feeding tape material to packaging machines and can be used in food, chemical and other industries. SUMMARY OF THE INVENTION: the device comprises a roll holder 1 with tape material 2, a drive pull roller 5 and a pinch roller 4 placed on a spring-loaded lever 3. The rollers 4 and 5 are installed with a gap one relative to the other and interact only at the moment of feeding the tape material 2 on packaging. The tape material 2 acts on the guide shaft 10 mounted on the free end of the lever 3, rotates it relative to the hinge 9 and presses the roller 4, placed on the lever 3, to the extended roller 5. The invention improves the reliability in operation during periodic feeding of the tape material . 1 ill.

Description

The invention relates to devices for feeding tape material to packaging machines and can be used in food, chemical and other industries.

A device is known for feeding the tape material to packaging machines, comprising a roll-containing material, a pressure roller cooperating with a drawing roller. The pressure and draw rolls are installed without a gap, as a result of which the conveyor material is supplied to the packaging machine due to the adhesion forces arising between the rollers and the tape material. The tape supply to the packaging is stopped only when the pull roller stops.

A disadvantage of the known technical solution is the unreliability in operation during periodic feeding of tape material.

A device for feeding tape material is known, comprising a roll holder, a pinch roller interacting with a pinch roller mounted pivotally attached at one end of the lever. The tape material is supplied to the package between the pressure and pull rollers that are constantly interacting under the action of the spring. The supply of tape material to the packaging is stopped only when the draw roller stops.

A disadvantage of the known technical solution is the unreliability in operation

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with periodic feeding of tape material.

The purpose of the invention is to increase the reliability in the periodic batch of tape material

This object is achieved in that in the device for dispensing tape material containing a roll holder, a reinforcing sub-5K linear single-arm growling direct and pull roller according to the invention, on the free end of the lever there is a ratchet pickling roller, and the pressure roller is mounted with a clearance relative to roller and with the possibility of interaction with the latter at the time of feeding of the tape material.

The drawing schematically shows a General view of the device.

The device for supplying tape material comprises a roll holder 1 with tape material 2, a pressure roller 4 mounted on a spring-loaded one-arm lever 3 and a tension roller 5, driven in rotation from an electric drive 6 through a reducer 7. A freely rotating pressure roller 4 is mounted with a gap relative to the tension roller 5. The gap is provided by a spring 8 located on the lever 3 adjacent to the pressure roller 4. The lever3 is fixed at one end by a hinge 9, and a freely rotating guide roller 1 is placed on its free end 0.

A device for feeding tape material operates as follows.

In the initial position, the tape material 2, placed on the forming surface of the draw roll 5, bends around the guide roll 10 and enters the gripping mechanism of the packaging machine with its free end (not shown conventionally in the drawing). In this case, the lever 3 is held by the spring 8 in its highest position, in which the pinch roller 4 and the pinch roller 5 are placed with a gap relative to each other.

When the tape material is fed into the package, the force from the material 2 is transmitted to the guide roller 10, moving it in the same direction. When this lever 3 is rotated relative to the hinge 9

counterclockwise, stretching the spring 8 and thereby selecting the gap between the pulling roller 5 and the pinch roller 4 located on the lever 3. The roller 4 presses the tape material 2 to the pulling roller 5, rotating from the electric drive 6 through the gearbox 7 and under adhesion forces occurring between the rollers 4 and 5 and the tape material 2 occurs

supply of material 2 per package. The tape material 2 is pulled onto the packaging, the tension being determined by the value of the lever arm 3 between the guide roller 10 and the pressure roller

roller 4 and the elastic forces of the spring 8.

At the end of the packaging process, the tape material 2 is cut off, its influence on the guide roller 10 is stopped, and the lever 3 under the action of the spring 8 occupies the initial position in which a gap is formed again between the pressure roller 4 and the constantly rotating pull roller 5. The adhesion forces between the rollers 4 and 5 and tape material 2

cease to function and the supply of tape material 2 is stopped.

If it is necessary to re-supply the tape material to the package, the cycle is repeated.

Periodic supply of tape material to the packaging is carried out only at the moment of interaction of the pressure and draw rolls with a constantly running electric drive, which improves conditions

drive operation and increases the reliability of the device

Claims (1)

SUMMARY OF THE INVENTION A device for feeding a tape material comprising a roll holder mounted on a spring-loaded single-arm lever, a pressure roller and a pull roller, characterized in that, in order to increase operational reliability when the tape material is periodically fed, a guide roller is fixed at the free end of the lever, and the pinch roller is mounted with a gap relative to the draw roller with the possibility of interaction with the latter at the time of feeding the tape material.