Hot melting cutter assembly of paper cutting machine

Abstract

The invention relates to a hot melting cutter assembly of a paper cutting machine. The hot melting cutter assembly comprises a rotatable cutter shaft, a hot melting cutter arranged on the cutter shaft, heating elements for heating the hot melting cutter and a servo motor linked with one axial end of the cutter shaft, the hot melting cutter comprises a hot cutter body formed by splicing a plurality of cutter blocks, one end of the hot cutter body is a cutting edge, at least five heating element mounting holes which are annularly distributed are formed in the side, close to the cutting edge, of each cutter block, and the heating elements are mounted in the heating element mounting holes. The hot melting cutter assembly has the beneficial effects that the transverse width of the hot melting cutter during heating expansion and cooling retraction is guaranteed, the heating effect of the cutting edge of the hot melting cutter is good, work is stable, the temperature on the cutter shaft is not too high during work, and operation by workers is facilitated.

Description

technical field [0001] The invention relates to the field of paper cutting equipment, in particular to a hot-melt knife assembly of a paper cutting machine. Background technique [0002] The hot-melt knife assembly in the traditional hot-knife paper cutter is mainly composed of a rotatable knife shaft, a hot-melt knife installed on the knife shaft, and a heating element for heating the hot-melt knife. One axial end of the knife shaft has a The tool shaft is provided with a drive source to drive the tool shaft to rotate, and the drive source is usually a servo motor; [0003] For example, a hot knife paper cutter with the patent number "zl 201320041109.0". One axial end of the knife shaft of the hot knife paper cutter is linked by a servo motor and a synchronous belt, and the other axial end is suspended in the air. In this design method, there is no support point at the easy axial end of the cutter shaft during use, and it is prone to shaking during rotation, resulting in ...

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Problems solved by technology

[0006] However, since the length of the hot-melt knife is at least one meter, a long hole through the hot-melt knife needs to be opened in the middle of the hot-melt knife to install the heating element, but such a long mounting hole cannot be directly processed by machining, so the hot-melt The knife body of the knife is not a whole piece of knife body, but is spliced ​​by several knife blocks. The traditional splicing method cannot guarantee the expansion direction of the knife block when the heating element heats the knife body. The knife block will not only expand longitudinally but also move horizontally after expansion, and the horizontal movement of the knife block will cause the cut marks on the paper after the hot-melt knife cuts the paper to be out of line. Support, but the radial deviation cannot be eliminated, and the heating effect of the heating element of the existing hot-melt knife is poor when heating, which may easily lead to excessive temperature on the back of the knife and the knife shaft, which is not conducive to the operation of workers, and needs to be improved

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