Sawblades in couple

A technology of paired saw blades and saw blades, which is applied in the direction of sawing machine devices, metal sawing equipment, and knives of sawing machine devices, and can solve problems such as inconvenient repair and maintenance, reduced work efficiency, and increased work loss.

Inactive Publication Date: 2008-02-06
郭一文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One disadvantage of this technology is that the friction between the spacer and the saw blade is large, which will increase work loss and reduce work efficiency; another defect is that the spacer of this technology is the saw blade body connected to one of the saw blades on, it will cause inconvenience in assembly, repair and maintenance

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0039] Referring to FIGS. 1-5 , a double saw blade includes an outer saw blade 1 rotating around an axis, an inner saw blade 7 counter-rotating around the same axis, and a set of balls 13 . The outer saw blade 1 includes a saw blade body 4 and a cutting element 2 arranged on the periphery of the saw blade body. A group of cylindrical grooves 3 are arranged on the saw blade body 4 near the cutting element 2, and the cylindrical annular groove 3 faces inwardly. Saw blade 7; the set of balls 13 are embedded in the corresponding cylindrical groove 3 one by one, and the two sides are respectively in contact with the saw blade body 9 of the inner saw blade 7 and the groove bottom of the groove 3, so that the outer saw blade 1 A certain gap is maintained between the saw blade body 4 of the inner saw blade 7 and the saw blade body 9 of the inner saw blade 7, and is in a rolling state during the relative movement of the two saw blades. There is a center hole 5 in the center of the saw ...

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PUM

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Abstract

The invention discloses a double saw blades, which consists of a first saw blade which rotates around the axes and a second saw blade which rotates reversely around the axes. Every saw blade has a saw blade body and a cutting element arranged on the surrounding of the saw blade body. Two saw blades approach in parallel each other in rotating state. The invention is characterized in that an interval piece which guarantees the corresponding rolling and the gap of two saw blades is arranged between two saw blades. Because the double saw blades of the invention adopt the rolling distance piece, therefore, the friction loss is greatly decreased and the working efficiency is improved. The product is convenient to installation and replaced, thereby prolonging the life-span of product.

Description

technical field [0001] The present invention relates to a pair of saw blades for cutting hard objects such as plastic, wood or metal. Said first saw blade is adapted to rotate about an axis of rotation in a first direction, and said second saw blade is adapted to rotate about the same axis of rotation in a second direction opposite to said first direction. Wherein each saw blade has a saw blade body and a cutting element arranged on the periphery of the saw blade body, and the two saw blades are suitable to be close to each other in parallel when placed. Background technique [0002] In order for the two saw blades to be able to cooperate, it is important that a gap exists between the two saw blade bodies. In one technique, this gap is created by cutting away a portion of the adjacent side of the opposing blade body relative to the perimeter with the cutting element, leaving a circular ring along the perimeter. This ring includes the uncut part of the blade body and said c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D61/02B23D61/00B23D45/10
Inventor 郭一文朱加允
Owner 郭一文
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