Involute cutter set and edge parameter calculating method thereof

A technology of involute and knife edge, which is applied in the field of bottle cap involute knife set and its knife edge parameter calculation, can solve the problems of short service life, inability to produce and sell in the same batch, increase production cost, etc., and achieve the goal of reducing production cost Effect

Active Publication Date: 2018-03-06
天津锐溥精密模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 b

Method used

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  • Involute cutter set and edge parameter calculating method thereof
  • Involute cutter set and edge parameter calculating method thereof
  • Involute cutter set and edge parameter calculating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] Such as Figure 6 As shown, when the bottle cap 9 rolls along the blade 2, the edge of the bottle cap 9 is embedded in the blade 2, and the cutting of the involute of the bottle cap 9 is realized through a plurality of knife edges 5 on the blade 2, and the adjacent The knife edge 2 between the two knife edges 5 cuts the bottle cap 9, and the part where the edge of the bottle cap 9 is embedded in the knife edge 5 is not cut.

Embodiment 2

[0118] Such as Figure 7 As shown, the entrance of the knife edge 5 in the prior art is a right-angle structure 10, and the part of the right-angle structure 10 is directly inserted into the bottle cap 9 when the bottle cap 9 rolls along it.

[0119] Such as Figure 8 As shown, after repeated use, the right-angle structure 10 is the most severely worn part of the blade 2, and the casting will become an arc-shaped worn part 11. The worn part 11 not only changes in shape, but is no longer sharp. Cutting of the bottle cap 9 cannot be realized.

Embodiment 3

[0121] Such as Figure 5 As shown, the two sides of the knife edge 5 are arc-shaped structures. According to the parameters such as the diameter of the bottle cap and the pulling force required when unscrewing, the optimum parameters of the knife edge 5 are calculated to ensure that the bottle cap 9 can be cut in at an optimum angle. The knife edge 5 increases the cutting area and cutting efficiency while reducing wear on the knife edge 5 and prolongs the service life.

[0122] When the knife edge 5 is partially worn, since the wear conditions of the plurality of knife edges 5 are basically the same, the depth of the bottle cap 9 embedded in the knife edge 2 also basically changes in the same way, and the arc structures on the left and right sides of the knife edge 5 remain the same. The cutting of the bottle cap 9 can be realized, further prolonging the service life.

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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...

Claims

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Application Information

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IPC IPC(8): B23B27/00B26D1/00B26D3/10G06F19/00
Inventor 王炜
Owner 天津锐溥精密模具有限公司
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