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Integrally-formed shredder blade and production method thereof

A production method and shredder technology, applied in grain processing and other directions, can solve the problems of different sizes of plastic fragments, inability to meet production, blade wear, etc., and achieve the effect of simple structure, reasonable design and reduced wear and tear.

Inactive Publication Date: 2018-08-03
马鞍山恒隆机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the existing shredder blades are prone to wear and tear, causing the blades to shake, and the plastic fragments are of different sizes, which cannot meet the needs of production, the invention provides an integrally formed shredder blade, which is integral and has a simple structure , by optimizing the design of the connecting hole of the blade, the wear of the edges and corners of the connecting hole of the blade is reduced, ensuring uniform force on the blade, and saving time and effort for replacement

Method used

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  • Integrally-formed shredder blade and production method thereof
  • Integrally-formed shredder blade and production method thereof
  • Integrally-formed shredder blade and production method thereof

Examples

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Embodiment 1

[0040] Such as Figure 1 to Figure 3 As shown, an integrally formed shredder blade of this embodiment includes a blade body 10, a blade 11 is provided on the blade body 10, and a connecting hole 12 is opened in the center of the blade body 10, and the shape of the connecting hole 12 is positive n sides Shape, wherein 12≥n≥5, the edges and corners of the regular n-gon are connected by arc protrusions 13. Preferably, n=6, the shape of the connection hole 12 is a regular hexagon, and the number of blades 11 is six, wherein the blades 11 are arranged corresponding to each side of the regular hexagon.

[0041]Currently used as a shredder blade disclosed in Patent Document 1, the blade is a split type, the structure is complicated, the manufacturing process is cumbersome, the cost is greatly increased, and it is not conducive to the market competition of the enterprise, while the blade of this embodiment is an integral type The manufacturing process is simple; a cutter head and a s...

Embodiment 2

[0047] A production method of an integrally formed shredder blade in this embodiment comprises the following steps:

[0048] Step S101, selecting Cr12Mo1V1 or W6Mo5Cr4V2 steel, stamping or forging to obtain a blade blank;

[0049] Step S102, performing rough grinding on the blade blank, leaving a margin of 0.7mm;

[0050] Step S103, heat-treat the roughly ground blade blank, first heat it to 550°C, then keep it warm for 1.5 hours, then heat it to 720°C, keep it warm for 3 hours, then heat it to 900°C, keep it warm for 40 minutes, then quench, oil quench, and cool After cryogenic treatment, the temperature of cryogenic treatment is -210°C, keep it for 1.5h, return to normal temperature in the air, temper once, the tempering temperature is 160°C, cool to normal temperature, place it for 1.5h, and then perform secondary tempering , the tempering temperature is 200°C;

[0051] Step S104, first remove the oxide layer on the surface of the mold after the treatment in step S103, la...

Embodiment 3

[0054] A production method of an integrally formed shredder blade in this embodiment comprises the following steps:

[0055] Step S101, selecting W6Mo5Cr4V2 steel material, stamping or forging to obtain a blade blank;

[0056] Step S102, performing rough grinding on the blade blank, leaving a margin of 0.7 mm;

[0057] Step S103, heat-treating the roughly ground blade blank, first heating to 540°C, then holding for 2 hours, then heating to 710°C, holding for 2.5 hours, then heating to 900°C, holding for 35 minutes, then quenching, oil quenching, and cooling After cryogenic treatment, the temperature of cryogenic treatment is -220°C, keep it for 1.5h, return to normal temperature in the air, temper once, the tempering temperature is 160°C, cool to normal temperature and place it for 1.5h, and then perform second tempering , the tempering temperature is 180°C;

[0058] Step S104, first remove the oxide layer on the surface of the mold after the treatment in step S103, laser cu...

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Abstract

The invention discloses an integrally-formed shredder blade and a production method thereof, and belongs to the technical field of blades. The integrally-formed shredder blade comprises a blade body;a cutting edge is arranged on the blade body; and a connection hole is formed in the center of the blade body and is in a n-regular polygon shape, the n is greater than or equal to 5 but smaller thanor equal to 12, and the corners of the n-regular polygon shape are connected in an arc protrusion mode. The connection hole of the integrally-formed shredder blade is in the n-regular polygon shape, nis greater than or equal to 5 but smaller than or equal to 12, the corners of the n-regular polygon shape are connected in the arc protrusion mode, preferably, n is six and the connection hole is inan integral shape, the arc protrusions disperse circumferential extrusion force and torque force towards the sector by optimal design of the connection hole of the blade, abrasion of the corners of the connection hole of the blade is reduced, blade stress uniformity is ensured, and time and labor are saved during replacement.

Description

technical field [0001] The invention belongs to the technical field of blades, and more specifically relates to an integrally formed shredder blade and a production method thereof. Background technique [0002] A shredder is a machine used for fine crushing. It is generally used to process unprocessed raw materials or scraps to make them smaller in size. A representative example is to shred plastic or rubber scraps and melt them as raw materials to make pellets to recreate plastic bottles, tires or trash cans and more. The shredder is used in the plastic recycling industry. It is often used for the crushing of waste large-diameter PE plastic pipes, bundled plastic films, large stacks of plastic sheets and machine head materials. The blade is an important part of the shredder. Currently used The blade is connected and fixed by the flat key to the rotating shaft. During high-speed rotation, the flat key, rotating shaft and the blade will all be worn, which will cause the blad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C18/18B23P15/00
CPCB02C18/18B23P15/00
Inventor 赵其丙
Owner 马鞍山恒隆机械科技有限公司
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