Composite blade set and cutting mechanism used therefor

Abstract

The invention provides a combined blade assembly and a cutting mechanism for the combined blade assembly. The combined blade assembly comprises a blade and at least one elastic layer. The at least one elastic layer can be glued on part of the edge surface and / or the back surface of the blade selectively. When the combined blade assembly is used by the cutting mechanism to cut an object to be cut, the elastic layers can serve as a buffering shock absorption body during cutting, and accordingly, collision acting on the blade is absorbed, and the possibility of fracture of the blade is reduced; besides, if the blade is fractured unfortunately, the fractured blade can still be bonded on the elastic layers, so that damage to the mechanism due to rolling of the fractured blade into the cutting mechanism or damage to operators due to ejection of the fractured blade is prevented, and the safety during cutting is guaranteed.

Description

technical field [0001] The invention relates to a composite blade set and a cutting mechanism used therefor, in particular to a composite blade set used in the cutting mechanism to cut an object to be cut. Background technique [0002] In the past, the cutting knife set consisted of two sets of corresponding steel blades, which were respectively fixed on individual metal wheel structures, and the blades were in contact with each other to cut a thin object to be cut (such as paper raw materials, fiber raw materials or plastic raw materials). cut. When the thickness of the blade is large, although the hardness requirement can be met, the elasticity (or toughness) is insufficient. When the blades are in contact with each other, it is easy to cause damage to the edge or structure of the blade due to the excessive contact force. And the strong collision between the metal blades will produce a great metal collision sound, if the collision force is too large, it may even cause the...

AI Technical Summary

Problems solved by technology

When the thickness of the blade is large, although the hardness requirement can be met, the elasticity (or toughness) is insufficient. When the blades are in contact with each other, it is easy to cause damage to the edge or structure of the blade due to the excessive contact force. And the strong collision between the metal blades will produce a huge metal collision sound. If the collision force is too large, it may even cause the cutting mechanism to vibrate.

Or, when the thickness of the blade is thinner, although it has better elasticity, the rigidity is not enough, so that the cutting result is often not ideal

[0003] Furthermore, the blades are easy to wear or break during the cutting process, requiring frequent shutdowns to replace the blades, reducing production capacity and affecting efficiency

Even when the blade breaks, the broken fragments will be involved in the mechanism, causing damage to other mechanism equipment, which has a huge impact

[0004] In addition, the heat energy generated by the cutting mechanism during operation is easily transferred from the metal wheel body to the blade, causing the blade to deform due to thermal expansion and contraction, so that the problem of positioning deviation is likely to occur during the cutting process , which affects the cutting accuracy

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