CN203579754U

CN203579754U - Sharpening mechanism of paper cutter

Info

Publication number: CN203579754U
Application number: CN201320590001.7U
Authority: CN
Inventors: 万汉兵; 杨积元; 陈镜彬; 刘灿雄; 李国聪
Original assignee: Foshan Baosuo Machinery Manufacturing Co Ltd
Current assignee: Foshan Baosuo Machinery Manufacturing Co Ltd
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2014-05-07
Anticipated expiration: 2023-09-24

Abstract

The utility model provides a sharpening mechanism of a paper cutter. The sharpening mechanism comprises a cutting tool and two sharpening wheels arranged at the two sides of the cutting tool, wherein the included angle between the grinding end faces of the two sharpening wheels is consistent with the angle of the cutting edge of the cutting tool, the two sharpening wheels are driven by a motor to rotate, and the sharpening wheels rotate in a direction so that scraps generated by grinding splash in a direction far away from the cutting tool. Compared with the sharpening mechanism of the paper cutter, the rotating speed of the sharpening wheels are not limited by the rotating speed of the cutting tool, and the sharpening wheels can be driven by the motor to rotate at a high speed, and as a result, the time of sharpening is remarkably shortened, the cutting edge is enabled to be smoother and the flatness of the cut surface of the paper product is improved; the rotating direction of the sharpening wheels is decided by the motor so that the scraps generated by grinding splash in the direction far away from the cutting tool, namely, toward the outside of the machine, and therefore, the problems of influence on the quality of the finished products, damage to parts and potential safety hazards due to that scraps fly to the surface of the cutting tool and into the machine are solved.

Description

The knife grinding mechanism of paper cutter

Technical field

The utility model relates to production of paper products equipment, the cut paper unit of cutting in particular for paper products.

Background technology

In the production process of paper products, after a strip paper products rewinding completes, must paper products be cut into paper cutter to the some parts that meet finished product length requirement.For keeping the sharp of cutter, paper cutter is all provided with knife grinding mechanism.In existing paper cutter, its knife grinding mechanism is all to adopt motorless grinding wheel.During sharpening, the cutting edge of cutter contacts with grinding wheel, and cutter relies on frictional force to drive grinding wheel to rotate.There is following defect in this knife grinding mechanism of existing paper cutter: 1, the rotating speed of grinding wheel is subject to the restriction of cutter velocity of rotation, so that the sharpening time that need to be very long lowers efficiency; 2, sharpening can make blade excess Temperature for a long time, and cutter loss is accelerated, and affects cutter life, and blade excess Temperature also can make blade easily be out of shape, and affects sharpening effect; 3, grinding the chip coming must some splash towards cutter, namely towards tool surface and machine intimate, splashes, and on the one hand cutter is got dirty, the end product quality that impact cuts out, on the other hand, in the course of time, can cause the damage of machine intimate part, even have potential safety hazard.

Utility model content

The purpose of this utility model is to provide a kind of knife grinding mechanism of paper cutter, to solve long, chip of sharpening time, splashes and has the problem of hidden danger.

The utility model is achieved in that the knife grinding mechanism of paper cutter, comprise cutter and two grinding wheels that are arranged in cutter both sides, angle between the grinding end face of two grinding wheels is consistent with cutting edge roundness angle, two grinding wheels drive rotation by motor, and the direction of grinding wheel rotation is that the chip that grinding is produced splashes towards the direction that deviates from cutter.

As preferred forms, described motor is air motor.

The utility model has the advantages that: compare with the knife grinding mechanism of existing paper cutter, the rotating speed of grinding wheel is not subject to the restriction of cutter rotating speed, can drive grinding wheel High Rotation Speed by motor, significantly shortens the sharpening time, and make cutting edge more level and smooth, improve the flatness of paper products section; The direction of rotation of grinding wheel is determined by motor, the chip that grinding is produced splashes towards the direction that deviates from cutter, namely towards machine exterior, splash, avoided chip to fly to tool surface and machine intimate and the end product quality that causes is influenced, damage parts and potential safety hazard.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment of the present utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the structural representation of another embodiment of the present utility model.

The specific embodiment

Referring to Fig. 1,2, the knife grinding mechanism of a kind of paper cutter providing according to the utility model, comprises cutter 1 and two grinding

wheels

2,3 that are arranged in cutter both sides.Two grinding

wheels

2,3 are one high and one low, stagger up and down.Angle between the grinding end face of two grinding

wheels

2,3 is consistent with cutting edge roundness angle.Two

grinding wheels

2,3 are connected with

motor

4,5 respectively, by motor, drive grinding wheel to rotate, and the direction of grinding wheel rotation is that the chip that grinding is produced splashes towards the direction that deviates from cutter.Strictly speaking, two

grinding wheels

2,3 of seeing from Fig. 2 are certain angle, and correspondingly, two

grinding wheels

2,3 in Fig. 1 should be drawn as ellipse, but as the schematic diagram of simplifying, two grinding wheels in Fig. 1 are all simplified to positive circle.On the other hand, Fig. 1 has also saved two motors should seeing.

Two

motors

4,5 preferably adopt air motor.The rotating speed of air motor can, by controlling the aperture of its intake valve or air bleeding valve, be controlled compressed-air actuated flow and regulate.

Another embodiment shown in Fig. 3, the embodiment shown in Fig. 2 of being combined with Fig. 1 is basic identical, and difference is only that cutter shown in Fig. 36 is grinding belt saws of moving linearly.

Above embodiment is only to restriction of the present utility model for ease of understanding the utility model ， Er And non-.The those of ordinary skill in relevant field also can be made various deformation and variation in the situation that not departing from spirit and scope of the present utility model, and all technical schemes that are equal to all should belong to category of the present utility model.

Claims

1. the knife grinding mechanism of paper cutter, comprise cutter and two grinding wheels that are arranged in cutter both sides, angle between the grinding end face of two grinding wheels is consistent with cutting edge roundness angle, it is characterized in that: two grinding wheels drive rotation by motor, and the direction of grinding wheel rotation is that the chip that grinding is produced splashes towards the direction that deviates from cutter.

2. the knife grinding mechanism of paper cutter as claimed in claim 1, is characterized in that: described motor is air motor.