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1. WO2007089497 - STEEP ANGLE CUTTER HUB WITH BLUNT EDGE BLADES

Publication Number WO/2007/089497
Publication Date 09.08.2007
International Application No. PCT/US2007/001898
International Filing Date 25.01.2007
IPC
B29B 9/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
02by dividing preformed material
06in the form of filamentary material, e.g. combined with extrusion
B26D 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
1Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefor; Cutting members therefor
CPC
B26D 1/0006
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
1Cutting through work characterised by the nature or movement of the cutting member ; or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
0006Cutting members therefor
B26D 1/29
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
1Cutting through work characterised by the nature or movement of the cutting member ; or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
01involving a cutting member which does not travel with the work
12having a cutting member moving about an axis
25with a non-circular cutting member
26moving about an axis substantially perpendicular to the line of cut
28and rotating continuously in one direction during cutting
29with cutting member mounted in the plane of a rotating disc, e.g. for slicing beans
B26D 2001/0033
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
1Cutting through work characterised by the nature or movement of the cutting member ; or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
0006Cutting members therefor
0033assembled from multiple blades
B26D 7/2614
BPERFORMING OPERATIONS; TRANSPORTING
26HAND CUTTING TOOLS; CUTTING; SEVERING
DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
7Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
2614Means for mounting the cutting member
B29B 9/065
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9Making granules
02by dividing preformed material
06in the form of filamentary material, e.g. combined with extrusion
065under-water, e.g. underwater pelletizers
Applicants
  • GALA INDUSTRIES, INC. [US]/[US] (AllExceptUS)
  • FRIDLEY, Michael [US]/[US] (UsOnly)
  • MARTIN, J. Wayne [US]/[US] (UsOnly)
  • CHANG, Tsung (Daniel) Cheng [--]/[--] (UsOnly)
Inventors
  • FRIDLEY, Michael
  • MARTIN, J. Wayne
  • CHANG, Tsung (Daniel) Cheng
Agents
  • JACOBSON, JR., Harvey B.
Priority Data
11/339,84826.01.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STEEP ANGLE CUTTER HUB WITH BLUNT EDGE BLADES
(FR) MOYEU DE TRANCHEUSE DOTE DE LAMES A BORDS EMOUSSES FORTEMENT INCLINEES
Abstract
(EN)
A cutter hub and blade assembly (10, 22, 60) for cutting polymer strands extruded from a die face (16) in a pelletizer has cutter blades (14, 24, 62) mounted on the cutter hub (48) at a steep angle. The blades (24, 62) are beveled along a portion of their leading edge to form a blunt cutting edge (36, 38) or surface (40, 42, 64, 66) to the blades which is generally perpendicular to the die face. By beveling the leading edge of a blade (24) supported at a steep angle to form a blunt cutting edge (36), the bottom surface area (54) of the blade (24) in contact with the die face can be significantly reduced. The reduced contact area provides several advantages including a clean cut of the pellets and a faster blade grinding when seating the blades to the die face.
(FR)
Ensemble moyeu et lames de trancheuse permettant de découper des joncs de polymère extrudés d'une tête de filière dans un granulateur. L'ensemble comporte des lames de trancheuse montées de façon fortement inclinée sur le moyeu de trancheuse. Les lames sont chanfreinées le long d'une partie de leur bord d'attaque de manière à former un bord ou une surface tranchant(e) émoussé(e) généralement perpendiculaire à la tête de filière. Le chanfreinage du bord d'attaque d'une lame fortement inclinée de manière à former un bord tranchant émoussé permet de réduire sensiblement l'aire de la surface de dessous de la lame qui vient au contact de la tête de filière. Cette aire réduite offre de nombreux avantages, notamment une découpe nette des granules et un meulage plus rapide de nouvelles lames fixées sur la tête de filière.
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