Involute cutter set and edge parameter calculating method thereof

Abstract

The invention discloses an involute cutter set and an edge parameter calculating method thereof. The involute cutter set comprises a cutter head; a blade is arranged at the upper end of the cutter head; guide column holes are formed in the left and right ends of the cutter head; a fixed hole is formed in the middle part of the cutter head; the blade is provided with an edge; and two sides of the edge are of arc structures. The involute cutter set comprises cutter types of an A type cutter, a B type cutter, a C type cutter and a D type cutter. The involute cutter set has the following beneficial effects: the matching of a traditional involute cutting machine can be realized through replacing the cutter set; the batch production can be achieved; and each cutter is not needed to singly open molds, so that the production cost is reduced. Through improvement of the edge structure, the wear of the edge is reduced, the sharpness of the edge is guaranteed, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of knife sets for special processing, in particular to a bottle cap involute knife set and a calculation method for knife edge parameters thereof. Background technique [0002] The cap involute is cut with a special knife with multiple edges. Existing knives come in various forms. This is mainly because the involute cutting machines used for fixing and opening and closing knives have different structures and cannot be produced and sold in the same batch. Separate mold production for each blade will increase production costs. [0003] In addition, the involute cutting knives for bottle caps are consumables like other knives, and the involute cutting knives are easier to consume than other knives, mainly because the end of the knives is most easily consumed, and the Involute cutters are prone to wear at the top entry of each edge due to the existence of the edges. The horizontal cross-section of the existing knife edg...

AI Technical Summary

Problems solved by technology

Existing knives come in various forms, mainly because the involute cutting machines used for fixing and opening and closing knives have different structures and cannot be produced and sold in the same batch. Separate molds for each blade will increase production costs

[0003] In addition, the involute cutting knives for bottle caps are consumables like other knives, and the involute cutting knives are easier to consume than other knives, mainly because the end of the knives is most easily consumed, and the Involute cutters are prone to wear at the top entry of each edge due to the presence of the edges

The horizontal cross-section of the existing knife edge is a rectangular structure, the top entrance of the knife edge is a right-angle structure, and the left and right sides of the knife edge are linear structures, which are prone to wear and tear. After wear, the blade becomes blunt and cannot achieve involute cutting. It can only be replaced , short service life

[0004] In the production process, it is necessary to calculate the cross-sectional area required after the bottle cap is cut according to the required pulling force of the bottle cap, so as to calculate the parameters at the knife edge. The incision of the transmission tool is a rectangular structure, and the area and knife edge parameters are very easy to calculate, but now Some manufacturers do not calculate the parameters of the knife edge, but design the knife based on experience. After the bottle cap is cut by the knife, the pulling force of the bottle cap is measured (by measuring the torque of the bottle cap, the pulling force value is measured), and then the knife edge is adjusted according to the measured value. The parameters are adjusted, repeated experiments, and the specific parameters of the knife edge are obtained, and the efficiency is low

[0005] If the involute design is adopted, the calculation of the knife edge parameters is very complicated, and the production of the tool cannot be completed through repeated experiments, because the traditional tool only has two parameters of tooth width and diameter depth, and changing one of the parameters will not affect the other parameter , but changing any parameter of the knife edge with involute design will cause changes in other parameters

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