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Water-cooled bracing and dicing machine

A pelletizer, water-cooled technology, used in metal processing and other directions, can solve the problems of bumping knives, reduced service life of movable knives and fixed knives, and changes in gaps, and achieve the effects of improving service life, increasing production capacity, and novel structure.

Pending Publication Date: 2020-08-28
成都煜翔机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For a long time, as the main auxiliary equipment of the extruder, the pelletizer determines the output according to the number of extruded rods of the screw. When making high-temperature materials and materials with strong fluidity, the general rod cutting The material machine can not achieve the effect of use, which is mainly because the temperature of the strip just extruded from the extruder is high, and the strip entering the pelletizing chamber will make the temperature of the pelletizing chamber rise faster, causing the thermal expansion of the moving knife and the fixed knife. The gap between the moving knife and the fixed knife will change, which will affect the pelletizing effect
There may even be a knife collision phenomenon, which will greatly reduce the service life of the moving knife and the fixed knife

Method used

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  • Water-cooled bracing and dicing machine
  • Water-cooled bracing and dicing machine
  • Water-cooled bracing and dicing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a water-cooled strand pelletizer includes: a strand pelletizer body for pelletizing strands 6; the strand pelletizer body includes a moving knife assembly 9; the moving knife The assembly 9 includes a moving knife shaft 16 and a moving knife 15 mounted on the moving knife shaft 16; a cooling water channel begins on the moving knife shaft 16.

[0037] Such as image 3 As shown, this embodiment is mainly to improve and optimize the strand pelletizer body of the prior art, focusing on improving and optimizing the moving knife shaft 16 of the moving knife assembly 9, specifically: the cooling water The channels include a first channel 20, a second channel 21 and a third channel 22, the first channel 20 and the third channel 22 are all arranged in the moving knife shaft 16 and are independent of each other; the second channel 21 is opened on the moving knife Between the shaft 16 and the movable knife 15; one end of the first channel 20 is used to...

Embodiment 2

[0041] Such as figure 2 As shown, this implementation is further optimized on the basis of Embodiment 1. This embodiment focuses on the improvements compared with Embodiment 1, and the similarities will not be repeated. In this embodiment, the second channel 21 is a plurality of mutually independent water flow channels provided on the inner wall of the aperture of the movable knife shaft 16 or the movable knife 15 , and each water flow channel is communicated with the other end of the first channel 20 by a connecting channel. In this embodiment, the second channel 21 can be opened on the inner wall of the aperture of the movable knife 15 or on the movable knife shaft 16, as long as it is opened at the place where the movable knife shaft 16 and the inner wall of the aperture of the movable knife 15 are in contact. That's it.

[0042] Several mutually independent water flow channels are preferably arranged at equal intervals, so that the cooling water flows through evenly, so ...

Embodiment 3

[0044] Such as figure 2 As shown, this implementation is further optimized on the basis of Embodiment 2. This embodiment focuses on the improvements compared with Embodiment 2, and the similarities will not be repeated. In this embodiment, the second channel 21 is an annular water flow channel with a circular cross section opened on the inner wall of the aperture of the movable knife shaft 16 or the movable knife 15 , and the annular water flow channel communicates with the other end of the first channel 20 through one or more connecting channels.

[0045] The structure of the second passage 21 in this embodiment is a deformation of the second passage 21 in Embodiment 2. In this embodiment, the second passage 21 is an integral annular water flow passage, and the annular water flow passage or milling On the movable knife shaft 16, or milled on the inner wall of the aperture of the movable knife 15, the integral annular water flow channel has a better heat dissipation effect. O...

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Abstract

The invention discloses a water-cooled bracing and dicing machine, and belongs to the technical field of bracing and dicing machines. The water-cooled bracing and dicing machine comprises a bracing and dicing machine body used for dicing a material strip, the bracing and dicing machine body comprises a movable cutter assembly, the movable cutter assembly comprises a movable cutter shaft and a movable cutter installed on the movable cutter shaft, and a cooling water channel is formed in the movable cutter shaft. After cooling water is introduced into three parts including the cooling water channel in the movable cutter shaft, a first cooling water cavity in a fixed cutter holder and a second cooling water cavity in the side wall of a dicing chamber, the service life of the movable cutter and a fixed cutter can be prolonged, meanwhile, thermal expansion is avoided, and the phenomenon that the movable cutter and the fixed cutter collide with each other when a gap is small is prevented. Due to the water cooling effect, the secondary cutting phenomenon generated due to the fact that the material strip adheres to the movable cutter after being cut off due to the fact that static electricity is generated can be prevented.

Description

technical field [0001] The invention relates to the technical field of strand pelletizers, in particular to a water-cooled strand pelletizer. Background technique [0002] At present, single-screw and twin-screw extruders have been widely used in the field of plastics and rubber. Typical applications include: general-purpose plastics PP, PE, PS, engineering plastics PA, ABS, PET, PBT, POM, LCP, PC, PA6T, PA8T, Blending of PEEK, PPS, etc., mineral filling, fiber reinforcement, powder coating, color masterbatch, elastomer mixing, granulation and extrusion molding processing, [0003] For a long time, as the main auxiliary equipment of the extruder, the pelletizer determines the output according to the number of extruded rods of the screw. When making high-temperature materials and materials with strong fluidity, the general rod cutting The material machine can not achieve the effect of use, which is mainly because the temperature of the strip just extruded from the extruder i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D7/06B26D1/15B26D5/08B26D7/08B29B9/06
CPCB26D7/06B26D1/15B26D5/086B26D7/08B29B9/06
Inventor 谢静
Owner 成都煜翔机械有限公司
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