Belt unreeling device

Abstract

The invention discloses a belt unreeling device which comprises a belt unreeling machine, an electric control system and a speed difference buffer detector, wherein the belt unreeling machine is provided with a drive motor; the speed difference buffer detector feeds a speed difference signal between the belt unreeling machine and the next stage device back to the electric control system, and the electric control system adjusts the rotation speed of the drive motor according to the speed difference signal; the belt unreeling machine is provided with a distance sensor for measuring the diameterof the material reel; the range sensor feeds a reel diameter signal of the material reel back to the electric control system; and the electric control system controls the initial rotation speed of the drive motor according to the reel diameter signal and the preset speed of the next stage device of the belt unreeling machine. The invention can realize speed matching between the current device andthe next device, ensures stable relative running speed and stable tensile force on the steel belt, reduces the frequency of the steel belt being fractured by tension, enhances the production efficiency and ensures the product quality.

Description

technical field [0001] The invention relates to a flux-cored welding wire production equipment, in particular to a tape unwinding device. Background technique [0002] In the process of producing flux-cored welding wire by a flux-cored welding wire enterprise, there is a common problem that the speed of the welding wire is not stable during the forming process. The speed of the belt unwinding machine is mostly not strictly controlled, and it is not uniform with the running speed of the welding wire forming equipment, so that the tension on the steel belt is too large, which easily leads to the problem of breaking the steel belt. The forming speed remains the same, and the running speed of the wire forming machine will not remain stable due to the restriction of the unwinding speed. [0003] The filling rate is an important indicator of the quality of the flux-cored welding wire. Because the filling rate of the flux-cored welding wire is the ratio of the total weight of the ...

AI Technical Summary

Problems solved by technology

[0002] In the process of producing flux-cored wire by flux-cored wire enterprises, there is a common problem that the speed of welding wire is not easy to stabilize during the forming process.

The speed of the unwinding machine is mostly not strictly controlled, and it is not consistent with the running speed of the welding wire forming equipment, so that the tension on the steel strip is too large, which may easily lead to the problem of steel strip breakage. The forming speed remains consistent, and the running speed of the welding wire forming machine will not remain stable due to the restriction of the unwinding speed.

[0003] The filling rate is an important indicator of the quality of the flux-cored wire, because the filling rate of the flux-cored wire is the ratio of the total weight of the flux-cored wire to the total weight of the flux-cored wire per unit length, and the total weight of the flux-cored wire is equal to the weight of the powder and the outer steel strip The sum of the weight, both of which are divided by the time, is the powder feeding speed of the powder and the running speed of the steel belt. If the running speed of the steel belt cannot be kept stable, the filling rate will eventually be unstable, which will affect the product quality.

[0004] In addition, the existing speed difference buffer detection device (or tension wheel) generally uses light rods and linear bearings as the motion guide rails of the lower tension wheel base to ensure the linear motion of the lower tension wheel base, but the lower tension wheel base Under the reciprocating motion of the light rod, the surface of the light rod is prone to wear, resulting in an increase in the movement resistance of the lower tension wheel base, affecting the sensitivity of the measurement, resulting in the speed not being adjusted accurately in time, thereby affecting product quality and / or occurrence of broken wires problems, reducing productivity

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