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Production process and production line of blades

A production process and blade technology, which is applied in the production process of blades and its production line, can solve the problems of low production efficiency and achieve the effects of high production efficiency, long service life and accurate cutting position

Inactive Publication Date: 2020-05-01
宁波锋砺金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the processing of this kind of blade, the material needs to be processed into a blank first, and then a single blank is forged and polished, and the production efficiency is low.

Method used

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  • Production process and production line of blades
  • Production process and production line of blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: a kind of production technology of blade, comprises the steps:

[0031] Step 1: Pull the rolled austenitic stainless steel coil with a thickness of 3mm and a hardness of 300-390HV on an uncoiler to form a straight strip, and cut the straight strip by a shearing machine to obtain a long preform;

[0032] Step 2: Cold rolling the two sides of the preform through a cold rolling mill until the sides are sharp to form a knife edge to obtain an isosceles trapezoidal knife blank, and the hardness of the knife edge area is not less than 450HV;

[0033] Step 3: Punch and cut the blank on the press at the same time to obtain the blade;

[0034] Step 4: Polish and assemble the blade.

Embodiment 2

[0035] Embodiment 2: a kind of production technology of blade, comprises the steps:

[0036] Step 1: Slitting the rolled austenitic stainless steel coil with a thickness of 4mm and a hardness of 200-300HV on a slitting machine into straight strip preforms;

[0037] Step 2: Cold rolling the two sides of the preform through a cold rolling mill until the sides are sharp to form a knife edge to obtain a parallelogram blank, and the hardness of the knife edge area is not less than 400HV;

[0038] Step 3: punching and punching the blank on the press at the same time to obtain the blade;

[0039] Step 4: Polish and assemble the blade.

Embodiment 3

[0040] Embodiment 3: A kind of blade production line, comprises slitting machine, shearing machine, cold rolling mill, press and polishing machine successively, and slitting machine is stripped into the strip preform of metal rolled coil, and cold rolling mill will prefabricated The two sides of the billet are cold-rolled to form a blade, the press is used to punch the installation hole and cut the blade to form a blade, and the polishing machine is used to polish the blade.

[0041] Such as figure 2 As shown, the press includes a feeding device and a punching die, and the punching die includes an upper template, a lower template, a guide post, a guide sleeve, a punch fixing plate 1 and a die fixing plate 2, and the upper template is fixed with a punching punch 3, Cutting punch 4 and pressing device 5, punching punch 3 is positioned at the conveyor belt side that cutting punch 4 is away from, and punching punch 3 comprises punching pin, and cutting punch 4 comprises cutting k...

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Abstract

The invention discloses a production process of blades. The production process is characterized by comprising the following steps: 1, a metal rolled coil is slit into straight-strip preformed blanks;2, the two side edges of the preformed blanks are cold-rolled to form cutting edges, and cutter blanks are obtained; 3, the cutter blanks are cut, and the blades are obtained. Through arrangement in this way, the metal rolled coil does not need to be cut into the cutter blanks with the single blades during treatment and only needs to be cut into the multiple straight-strip preformed blanks, the required time is short, the workload is small, and the machining efficiency is high; and the preformed blanks are directly cold-rolled and edged, compared with a traditional process that the single cutting edges are formed, a large amount of time is saved, and the production efficiency is improved. The invention further discloses a production line adopting the production process.

Description

technical field [0001] The invention relates to the technical field of blade processing, in particular to a blade production process and a production line thereof. Background technique [0002] At present, the Chinese patent with the publication number CN109338058A discloses a cold forging and hardening process for blades, which is characterized in that it includes the following steps: Step 1: using an austenitic stainless steel material with a hardness of HV180-380 degrees, using a punch press or a hydraulic press Such as press blanking, laser cutting and other processes to process the shape and size close to the shape of the blade; Step 2: Deburr and polish the blade itself; Step 3: Use hydraulic press or punching machine or press to normal temperature the edge position of the blade Forging, the pressure of forging increases in direct proportion to the thickness and blade width of the blade. After forging, the hardness of the blade increases to HV420-520 degrees; Step 4: U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/28B23P23/06B21D28/14B21D28/34B21D28/04
CPCB23P15/28B23P23/06B21D28/14B21D28/34B21D28/04
Inventor 张振山王维张一心
Owner 宁波锋砺金属制品有限公司
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