EP0656813A1 - Schneidrotor - Google Patents
SchneidrotorInfo
- Publication number
- EP0656813A1 EP0656813A1 EP93912630A EP93912630A EP0656813A1 EP 0656813 A1 EP0656813 A1 EP 0656813A1 EP 93912630 A EP93912630 A EP 93912630A EP 93912630 A EP93912630 A EP 93912630A EP 0656813 A1 EP0656813 A1 EP 0656813A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- knife
- rotor according
- cutting rotor
- wedge
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
- B02C18/186—Axially elongated knives
Definitions
- the present invention relates to a cutting rotor with knives clamped in recesses of a rotor body with at least one clamping surface against which a clamping element rests.
- rotors for strand pelletizers in which the knives are held in grooves, one wall of which is deformed by eccentrics and is caulked against one side of the knife part engaging in the groove.
- this construction presupposes that the knife part protruding into the groove or the groove widens inwards.
- EP 0 357 549 A1 describes a cutting rotor of the type mentioned in the introduction, in which each knife has at least one concave clamping surface against which a conical screw of a clamping element rests, the axis of which lies approximately parallel to the longitudinal direction of the knife.
- the cone of the cone screw lies eccentrically on the clamping surface in such a way that the clamping force acting on the knife has both an axial and a radial component.
- the screw is preferably a double-threaded screw, the first thread of which engages in a threaded through bore of the wedge and the second thread of which engages in a corresponding threaded bore of the rotor body.
- the through hole runs parallel to the outer wedge surface, which bears directly on the rotor body.
- the clamping surface of the wedge resting on the knife clamping surface preferably faces a perpendicular to the knife longitudinal axis and / or the screw longitudinal axis, i.e. in the axial direction, an inclination that is a maximum of 20 °, preferably the inclination is between 7 to 8 °, in particular 7 ° 30 '.
- the knife clamping surface has an inclination in the direction parallel to the longitudinal axis of the knife, ie in the radial direction, preferably up to 10 * , as a result of which displacement of the knives in their longitudinal direction can be effectively prevented.
- This inclination is chosen in particular with 5 * .
- the rake and wedge angles of the knives are determined, which are regularly between 0 and 20 °, preferably 10 ° (rake angle) and / or above 45 °, preferably 55 ° (wedge angle).
- the knives are inclined by 0 to 5 ° with respect to the axis of rotation.
- clamping wedges are arranged at both ends of the knife and connected to the rotor body via the relevant clamping screws.
- the knives consist of hard metal, high-speed steel, powder metallurgically manufactured steel, cermet, ceramic, cubic boron nitride (CBN) or - at least in the cutting area - of polycrystalline diamond (PCD).
- 1 is a side view of a cutting rotor
- FIG. 2 is a partial view of the rotor with a knife and the clamping device
- Fig. 3 is a sectional view in the direction of a perpendicular to the knife longitudinal axis in the region of the clamping wedge and
- FIG. 4 shows a top view of the cutting rotor (developed view).
- the cutting rotor shown in FIG. 1 essentially consists of a rotor body 10 and knives 11 clamped in corresponding recesses in this rotor body 10, which are arranged circumferentially at an equidistant distance.
- 32 cutting knives describe the 360 ° circle.
- the cutting angles 11 have a free angle 111 of 25 °, a rake angle 112 of 10 ° and a wedge angle 113 of 55 °.
- each cutting knife 11 On the side facing away from the cutting edge 114, each cutting knife 11 has a recess 115 with a flat bottom surface, the angle of inclination 116 of which is 5 ° in the direction parallel to the knife longitudinal axis.
- the clamping element 12 bears on the clamping surface 115 of the knife 11 with a correspondingly designed flat surface 121.
- the tensioning element has a through hole with an internal thread, in which a double-threaded screw 13 with an internal hexagon 131 is screwed.
- the wedge 12 has a wedge surface 121 which has an inclination 123 of 7 ° 30 'in a perpendicular to the longitudinal axis of the knife or the longitudinal axis 132 of the screw.
- the wedge 12 in connection with the screw 13 serve as a connecting element between the rotor 10 and the knife 11.
- the double thread screw 13 rests with its second thread 133 in a correspondingly equipped bore in the rotor 10, whereas it has its first thread section 134 engages in a through bore of the wedge 12.
- the rotor 10 has lateral recesses 101 which allow tensioning in the direction of the rotor axis of rotation.
- each knife 11 has a flat clamping surface 115 or a wedge 12 on both sides of its longitudinal ends.
- the cutting knife inclination 117 with respect to the axis of rotation is 2 ° 30 '.
- the cutting rotor described can be used for processing plastics of all kinds.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
- Milling Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924228410 DE4228410C2 (de) | 1992-08-26 | 1992-08-26 | Schneidrotor |
DE4228410 | 1992-08-26 | ||
PCT/DE1993/000564 WO1994004274A1 (de) | 1992-08-26 | 1993-06-25 | Schneidrotor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0656813A1 true EP0656813A1 (de) | 1995-06-14 |
Family
ID=6466499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93912630A Withdrawn EP0656813A1 (de) | 1992-08-26 | 1993-06-25 | Schneidrotor |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0656813A1 (de) |
CN (1) | CN1084800A (de) |
DE (1) | DE4228410C2 (de) |
WO (1) | WO1994004274A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19721177C1 (de) * | 1997-05-21 | 1998-07-30 | Werner Arnheiter | Schneidwerkzeug mit zubehörfreier Schneidenhalterung |
DE102006003527B4 (de) * | 2006-01-24 | 2013-11-21 | Herbold Meckesheim Gmbh | Vorrichtung zum Zerkleinern beliebiger Materialien |
CN104907122A (zh) * | 2015-05-31 | 2015-09-16 | 芜湖银海机械制造有限公司 | 一种具有缓冲机构的鄂式破碎机齿板 |
CN104907120A (zh) * | 2015-05-31 | 2015-09-16 | 芜湖银海机械制造有限公司 | 一种鄂式破碎机齿板 |
CN104907121A (zh) * | 2015-05-31 | 2015-09-16 | 芜湖银海机械制造有限公司 | 一种大小齿鄂式破碎机齿板 |
CN107127040A (zh) * | 2017-07-10 | 2017-09-05 | 索通发展股份有限公司 | 防蓬料破碎装置及方法 |
CN110871129B (zh) * | 2019-11-01 | 2021-02-26 | 宜春万申制药机械有限公司固体制剂制造装备工业设计中心 | 一种整粒轮及整粒机构 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2120491A1 (de) * | 1971-04-27 | 1972-11-02 | Condux-Werk Herbert A. Merges KG, 6451 Wolfgang | Schneidrotor |
SE7412382L (sv) * | 1974-10-02 | 1976-04-05 | Larssons Hardmetall Ab | Gresverktyg med skerlas |
DE2511105C3 (de) * | 1975-03-13 | 1979-04-26 | Helmut 7920 Heidenheim Schrammel | Messerkopf zum Bearbeiten von Holz und Kunststoff |
US4033018A (en) * | 1976-07-16 | 1977-07-05 | Illinois Tool Works Inc. | Indexable milling cutter |
FR2423263A1 (fr) * | 1978-04-17 | 1979-11-16 | Sosson Guy | Machine a broyer rotative a couteaux, notamment pour la recuperation des metaux tenaces |
DE2827391C2 (de) * | 1978-06-22 | 1984-09-13 | Alpine Ag, 8900 Augsburg | Rotor für eine Zerkleinerungsvorrichtung |
CH678027A5 (de) * | 1988-09-02 | 1991-07-31 | Krupp Widia Schweiz Ag | |
DE58905321D1 (de) * | 1989-01-03 | 1993-09-23 | Hans Hench | Umlaufendes schneidwerkzeug, insbesondere zum stranggranulieren von kunststoffen. |
DE3912940A1 (de) * | 1989-04-20 | 1990-10-31 | Vogel & Ploetscher Gmbh Feinme | Vorrichtung zum bearbeiten von bahnfoermigem gut |
-
1992
- 1992-08-26 DE DE19924228410 patent/DE4228410C2/de not_active Expired - Fee Related
-
1993
- 1993-06-25 WO PCT/DE1993/000564 patent/WO1994004274A1/de not_active Application Discontinuation
- 1993-06-25 EP EP93912630A patent/EP0656813A1/de not_active Withdrawn
- 1993-08-18 CN CN 93116444 patent/CN1084800A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9404274A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE4228410A1 (de) | 1994-03-03 |
DE4228410C2 (de) | 1994-11-17 |
CN1084800A (zh) | 1994-04-06 |
WO1994004274A1 (de) | 1994-03-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19950117 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB IT NL |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WIDIA GMBH |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19960130 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19960910 |