EP0717663A1 - Device for reducing steel or metal chips - Google Patents
Device for reducing steel or metal chipsInfo
- Publication number
- EP0717663A1 EP0717663A1 EP94927472A EP94927472A EP0717663A1 EP 0717663 A1 EP0717663 A1 EP 0717663A1 EP 94927472 A EP94927472 A EP 94927472A EP 94927472 A EP94927472 A EP 94927472A EP 0717663 A1 EP0717663 A1 EP 0717663A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- cutter head
- channel
- knife
- edges
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
-
- 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
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
-
- 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
- B02C18/22—Feed or discharge means
- B02C18/2216—Discharge means
Definitions
- the invention relates to a device for shredding steel or metal chips from machining, with a conically shaped grinding funnel adjoining a receiving funnel, with rice blocks arranged circumferentially distributed at different heights, with their tear edges opposite are arranged inclined to the vertical plane of the axis of rotation of an associated cutter head shaft, with a grinder arranged under the grinding funnel.
- the long chips generated during the machining process get caught in larger balls.
- the balls or lumps are fed to a comminution process, which is followed by the recovery of the cutting oil or lubricating water by centrifugation.
- the broken chips are transported to centrifuging devices to prevent lubricants from escaping.
- the maximum length of the chips must not exceed the specified minimum mass.
- the disadvantage of this approach is that the chip length is too large. After the grinding process, the chip material is transported for centrifugation, preferably in tubes together with the coolant. In this way, harmful leakage of lubricant still adhering to the material is prevented.
- This type of transport requires that the chips are not very coarse; d. H. , they must be less than about 2 cm in length.
- a further difficulty is only insufficiently or not at all overcome in the known, further improved devices, for example according to DE 42 19 090.5 AI, namely the occurrence of larger massive coarse parts in the chip flow, which are often also present in the area of the cutting machines Separation devices are not detected. Coarse parts of this type can lead to considerable damage, even destruction of the comminution machine.
- the task underlying the invention is directed at avoiding damage or even destruction of the device known per se by means of an automatically operating and operationally reliable additional device while maintaining the advantages of reliable shredding of the steel that have already been achieved. or to achieve metal shavings, in order to also considerably reduce, if not completely exclude, the risk of clogging in the material flow within the device.
- a grinding mechanism formed from at least two ring-shaped grinding disks arranged one above the other and rotatable relative to one another, the inner surfaces of which ring surround the rotating shaving head with its circumferentially distributed shearing knives and which are provided with spaced-apart shearing grooves.
- the channel slide is longitudinally guided in the ejection channel and can be moved into the opening and the closed position by means of a signal-controlled, reversible drive, and above all the measure of importance is that a motor-driven one Knife head in operative connection is provided with a first signal transmitter for controlling the channel slide and also a second signal transmitter for reverse slow control of the drive of the knife head.
- This embodiment of the invention makes the functional networking of the opening and closing movement of the channel slide with a very slow reversing movement of the knife head. This ensures that the coarse part is pushed out into the ejection channel, which can be arranged essentially horizontally but also inclined downwards.
- the ejection channel can either be closed at different times with repetition if the foreign body was not pushed out during the first cycle or if a second foreign body is present.
- a modification can also consist in that an optical, electromagnetic, electro-inductive or similar sensor is arranged in the ejection channel with a third signal transmitter, which is used with the control device and its signal transmitters to control the channel slide and the signal transmitter Reversing control of the drive of the cutter head is operatively connected so that the closing of the discharge channel and the resumption of normal rotation of the cutter head can be triggered by the foreign body leaving the grinding funnel through the discharge channel, as is provided in accordance with protection claim 6.
- the shear grooves have a width of 6 mm and a depth of 5 mm and that furthermore one of the grinding disks is rotatably mounted in an annular recess of a flange part of the housing relative to the other non-rotatably arranged grinding disk.
- This twisting is further made possible by the fact that the position of the rotatable grinding disk relative to the fixed grinding disk can be changed by means of a rotatable eccentric pin which engages in a recess located on the outer circumference of the rotatable grinding disk.
- the position of the rotatable grinding disk can be changed by rotating the eccentric pin relative to the permanently arranged one, as a result of which the shear grooves lying one above the other also shift relative to one another.
- the opening width of the shear grooves can be increased or decreased due to the overlap that arises, which in turn only allows chips of a desired maximum size to pass from the grinding funnel into the grinding mechanism underneath.
- a further embodiment consists in the fact that the shearing knives consist of two legs enclosing an angle, which adjoin the grinding disks on their inner circumference and on their underside at a slight distance, and also that the knife legs are at a distance of 0.1 to 0.5 mm slide past the inner surfaces of the grinding disks.
- the chip material is comminuted to the desired chip size.
- the device is designed in such a way that the legs of the shaving knives, which run at an angle to the cutter head shaft, rest on a circumferential circular collar of the cutter head, on whose (lower) ring surface facing away from the legs are attached approaches which are distributed around the circumference and which are known as Chip ejectors serve.
- the chips are carried in the circumferential lower recess of the housing through the lugs up to a chip removal plate which adjoins the circumference. This measure also prevents the risk of clogging from chip material.
- Rip edges of the rice blocks arranged at an angle of 65 to 45 degrees are shaped to match the contour of the rip edges of the rip knife and the corner knife, so that the gap between the interacting rip edges is not more than 0.1 to 0.5 mm and that continues Rip knives, corner knives and rice surfaces are made of hardened steel.
- the lower corner knives with their rice edges are arranged inclined with respect to the vertical plane running through the axis of rotation of the knife head shaft, and that the inclination can still be between 15 and 35 degrees of angle. Due to the inclination between the sharp edges of the rice, when the rice knife glides past with a narrow gap, a pulling cutting effect is produced. call, whereby a more effective cutting and cutting of the chips is achieved and the mere crushing is avoided, which can lead to signs of constipation.
- Fig. 2 shows the vertical section. 1 with the ejection channel open
- Figure 3 is a perspective view of the individual parts of the device, partially in section.
- Fig. 4 shows a vertical section. Fig. 1 in an enlarged view
- Fig. 5 is a plan view of the rotatable grinding disc with an engaging eccentric pin as a cutout.
- FIG. 1 and 2 show a simplified representation of the device with the grinding funnel 2 with rice blocks attached at different heights and the cutter head shaft 7 with the cutter head 4, which is equipped with at least one rice cutter 6 and at least one corner cutter 5. Furthermore, the cutter head drive with controller 41 can be seen in the lower part of FIG. 1.
- the ejection channel 10 opens into the grinding funnel 2 with the channel slide 11, which is shown in FIG. 1 in its front position closing the ejection channel 10 and in FIG. 2 in its rear position which keeps the ejection channel 10 open.
- a control device which the loading movements of the channel slide 10 and the cutterhead shaft 7 controlled and coordinated.
- the control of the cutter head drive 41 emits a signal to the control device 13 by which two functions are triggered, namely by a first signal transmitter 19 activates the control of the channel slide in the opening direction, so that it moves back into the position shown in FIG. 2, while at the same time the control 41 of the cutter head drive is adjusted by the second signal transmitter 23 such that the cutter Head 4 reversing its direction of rotation in slow gear until it has pushed the coarse part GT into the discharge channel 10, from where it falls over the discharge plate 18 into a container (not shown).
- the sensor 21 with the third signal transmitter 42 switches the signal receiver 44 in such a way that it controls the cutter head drive 41 in the sense of a switchover to normal operation via the fourth signal transmitter 43.
- This configuration ensures that foreign bodies, in particular coarse particles, are removed from the grinding funnel 2 as quickly as possible before the knife and rice organs can be damaged or destroyed.
- FIGS. 4 and 5 show further details of the device.
- the width MT of the grinding funnel 2 at the transition to the receiving funnel 1 is preferably between 280 and 500 In the example, 400 mm were chosen in order to adapt seamlessly to the width of the receiving funnel when transporting the chip material to reach.
- the grinding funnel 2 has rice blocks 3 distributed in the interior at different heights on the circumference.
- the rotating cutter head shaft 7 with the associated cutter head 4 is located inside the grinding hopper 2.
- a ripping knife 6 and two corner knives 5 are distributed around the circumference of the cutter head 4 and cooperate with the rice edges 22 of the rice blocks 3 in such a way that the shredding of the wool chips takes place between the tear edges moving past each other.
- the gap between the interacting tear edges is set to a distance between 0.1 and 0.5 mm.
- the tearing blocks 3 with their tearing edges 22 are inclined at an angle of 65 to 45 degrees to the vertical plane formed by the axis of rotation of the cutter head shaft 7.
- the tear edges 22 of the rice blocks 3 have a throats 27 at short intervals, the width and depth of which are between 2 and 4 mm.
- Rip knife 6, corner knife 5 and tear surfaces are made of hardened steel and have finely machined rice edges. Due to the described type of arrangement of the individual components in combination with the fillet grooves 27 of the rice blocks 3, an optimal tearing of the chip balls or comminution of the chips before the transition to the subsequent grinder is achieved, whereby clogging of the device by chip material is avoided at the same time .
- the cutter head 4 is fastened on the rotating cutter head shaft 7, which is supported in the bearing block 16 by means of the bearings 12.
- the cutter head 4 has a removable cover element 8 with an associated screw element 9.
- the cover element 9 is fastened by screwing in the direction of the vertical axis of the cutter head shaft 7.
- the lumps of chips are first torn apart and divided into smaller portions. These are further broken up and torn by the corner knives 5 in its lower region.
- the fine comminution takes place in the area adjoining the grinding cone 2 between the grinding disks 25, 26 and the shear cutters 34 of the shaving head 33. This area represents the actual grinder.
- the distance between the inner ring surfaces 31 and the underside 37 of the grinding disks 25, 26 and the leg surfaces 35, 36 of the shear blades 34 that are in contact with these surfaces can be set to 0.1 to 0.5 mm.
- the recess 30 is shown on the outer circumference of the rotatable grinding disk 25, in which the eccentric pin 29 engages, by means of the eccentric shaft 39 adjoining the eccentric pin 29 with a rivet screw 40, the grinding disk 25 is displaced by rotation. After the grinding disk 25 has been rotated, the scissor groove 28 still has a width of 4 mm.
- the distance between the inner ring surfaces 31 and underside 37 of the grinding disks 25, 26 and the leg surfaces of the shear blades 34 in contact with these surfaces is set to 0.3 mm in the example. According to the above explanations, only chips of this type reach the grinding area from the grinding cone 2 that can pass the set gap width in terms of volume.
- the rotatable grinding disk 25 is rotatably mounted on the non-rotatable grinding disk 26 in the upper annular recess of the flange part by the housing 32.
- the corner knives 5 arranged on the lower part of the knife head 4 are arranged with their tear edges inclined at an angle of 15 to 35 degrees relative to the vertical plane running through the axis of rotation of the knife head shaft 7. As a result of this inclination of the tear edges, the separation of the chips of chips achieved in the upper region of the grinding cone 2 is continued into smaller portions; mere crushing of the chips and a risk of blockage are avoided.
- the legs 35, 36 of the shear blades 34 which extend at an angle to the cutter head shaft 7, rest on the circular collar of the cutter head 33.
- attachments 24 are attached which serve as chip ejectors. They are guided in a lower recess of the housing 32 and are preferably rectangular, analogous to the shape of this recess.
- the lugs 24 convey the chips in the lower recess of the housing 32 in synchronism with the rotation of the shaving head 33 to the chip removal plate 15 located on the circumference of the recess, on the incline of which the chips are forwarded to existing chip collection devices.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Milling Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4330882A DE4330882A1 (en) | 1993-09-13 | 1993-09-13 | Device for crushing steel or metal chips |
DE4330882 | 1993-09-13 | ||
PCT/DE1994/001052 WO1995007757A1 (en) | 1993-09-13 | 1994-09-13 | Device for reducing steel or metal chips |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0717663A1 true EP0717663A1 (en) | 1996-06-26 |
EP0717663B1 EP0717663B1 (en) | 1998-03-18 |
Family
ID=6497482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94927472A Expired - Lifetime EP0717663B1 (en) | 1993-09-13 | 1994-09-13 | Device for reducing steel or metal chips |
Country Status (6)
Country | Link |
---|---|
US (1) | US5785261A (en) |
EP (1) | EP0717663B1 (en) |
JP (1) | JPH09502392A (en) |
CA (1) | CA2171642C (en) |
DE (2) | DE4330882A1 (en) |
WO (1) | WO1995007757A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4330882A1 (en) * | 1993-09-13 | 1995-03-16 | Klaus Lanner | Device for crushing steel or metal chips |
US6053441A (en) * | 1997-09-04 | 2000-04-25 | Bolton-Emerson Americas, Inc. | Toroidal flow pulper for difficult materials |
US6340125B1 (en) * | 1998-09-03 | 2002-01-22 | Fuji Machine Mfg. Co., Ltd. | Apparatus for breaking chips and system for treating chips |
DE10006757C1 (en) * | 2000-02-15 | 2001-05-17 | Mayfran Int Bv | Crushing process for chips or swarf, involving recording rate of alteration of load to detect blocking chips and ejecting these chips |
JP3566912B2 (en) * | 2000-06-29 | 2004-09-15 | 株式会社タズミ | Crushing equipment |
DE10040602B4 (en) * | 2000-08-16 | 2005-02-10 | Thomas Spyra Industrie- Und Umwelttechnik | shredder |
DE10204772A1 (en) * | 2002-02-05 | 2003-08-21 | Tbe Habermehl Anlagenbau Gmbh | Cutting device, in particular for shredding chips |
DE10223590B3 (en) * | 2002-05-27 | 2004-02-19 | Klaus Lanner | Mobile swarf processing device has mobile frame supporting centrifuge and conveyor delivering swarf to its upper central feed opening |
DE102014116911B3 (en) * | 2014-11-19 | 2016-05-12 | Bürener Maschinenfabrik GmbH | Chip crusher for chipping chips |
RU2606831C1 (en) * | 2015-09-09 | 2017-01-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский политехнический университет" | Food wastes grinder |
CN105344441A (en) * | 2015-11-25 | 2016-02-24 | 盐城苏工高科机械有限公司 | Large waste metal shredding machine |
CN112046948B (en) * | 2020-09-08 | 2022-05-13 | 曹庆华 | Anti-blocking device for raw coal bunker discharging and use method thereof |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE290283C (en) * | ||||
GB238350A (en) * | 1924-07-17 | 1925-08-20 | Magnet Werk Gmbh Eisenach | An improved method of and apparatus for crushing and comminuting waste metal or wooden articles, such as tin cans, enamelled metal articles, wooden boxes and the like |
US1941770A (en) * | 1931-03-17 | 1934-01-02 | Hubert G Welsford | Crusher |
DE598097C (en) * | 1932-09-21 | 1934-06-05 | Eisen Und Stahlwerke Oehler & | Shredding device |
BE544450A (en) * | 1955-01-20 | |||
DE1115094B (en) * | 1959-06-03 | 1961-10-12 | Friedrich Nagel | Device for comminuting the chips produced during machining, in particular during turning of metal workpieces |
GB884242A (en) * | 1960-05-06 | 1961-12-13 | Arboga Mek Verkst Ab | Automatic control means for crushers for lathe shavings or turnings |
DE1757328B1 (en) * | 1968-04-25 | 1971-05-06 | Voith Gmbh J M | Process for manufacturing grinding tools for refiners, defibrators or the like. |
DE2302859A1 (en) * | 1973-01-20 | 1974-07-25 | Buehler Miag Gmbh 3300 Braunsc | DEVICE FOR CRUSHING SPA |
SU531542A1 (en) * | 1975-08-11 | 1976-10-15 | Днепродзержинский Ордена Трудового Красного Знамени Индустриальный Институт Им.М.И.Арсеничева | Metal shredding crusher |
DE2547980A1 (en) * | 1975-10-27 | 1977-04-28 | Richard Steimel | SPA CRUSHER |
FR2340772A1 (en) * | 1976-02-12 | 1977-09-09 | Fives Cail Babcock | Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit |
DE3313928C2 (en) * | 1983-04-16 | 1986-10-23 | Rudolf 8881 Lutzingen Götz | Device for crumbling solids such as tubers |
DE8335662U1 (en) * | 1983-12-13 | 1984-03-08 | Steimel, Richard, 5202 Hennef | CHIPBREAKER |
SU1304873A1 (en) * | 1985-10-08 | 1987-04-23 | Краматорский Индустриальный Институт | Apparatus for mincing metal chips |
DE3621400A1 (en) * | 1986-06-26 | 1988-01-14 | Paul Aertker | Method and device for protecting a percussion-hammer mill against overload |
US4988045A (en) * | 1987-04-13 | 1991-01-29 | American Pulverizer Company | Vertical scrap metal crusher |
US4998045A (en) * | 1988-12-06 | 1991-03-05 | Honeywell Inc. | Fluorescent lamp dimmer |
DE8901794U1 (en) * | 1989-02-16 | 1989-07-13 | Fa. Klaus Lanner, 7638 Mahlberg | Device for crushing steel or metal chips |
ES2044119T3 (en) * | 1989-06-16 | 1994-01-01 | Iseki Kaihatsu Koki | CRUSHING MACHINE. |
DE3932152A1 (en) * | 1989-09-22 | 1991-04-04 | Kurt Roessler | CRUSHING DEVICE |
DE4120456C2 (en) * | 1991-06-21 | 1994-06-30 | Lindemann Maschfab Gmbh | Method and device for both crushing and separating materials |
DE4219090C2 (en) * | 1992-06-11 | 2002-05-16 | Klaus Lanner Anlagenbau Gmbh | Device for crushing steel or metal chips |
DE9209945U1 (en) * | 1992-07-30 | 1992-11-05 | B. Maier Zerkleinerungstechnik GmbH, 4800 Bielefeld | Crusher for crushing bulky goods |
DE4330882A1 (en) * | 1993-09-13 | 1995-03-16 | Klaus Lanner | Device for crushing steel or metal chips |
-
1993
- 1993-09-13 DE DE4330882A patent/DE4330882A1/en not_active Withdrawn
-
1994
- 1994-09-13 CA CA002171642A patent/CA2171642C/en not_active Expired - Fee Related
- 1994-09-13 JP JP7508903A patent/JPH09502392A/en active Pending
- 1994-09-13 US US08/605,075 patent/US5785261A/en not_active Expired - Fee Related
- 1994-09-13 EP EP94927472A patent/EP0717663B1/en not_active Expired - Lifetime
- 1994-09-13 WO PCT/DE1994/001052 patent/WO1995007757A1/en active IP Right Grant
- 1994-09-13 DE DE59405492T patent/DE59405492D1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9507757A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0717663B1 (en) | 1998-03-18 |
CA2171642C (en) | 2000-11-28 |
WO1995007757A1 (en) | 1995-03-23 |
CA2171642A1 (en) | 1995-03-23 |
DE4330882A1 (en) | 1995-03-16 |
JPH09502392A (en) | 1997-03-11 |
DE59405492D1 (en) | 1998-04-23 |
US5785261A (en) | 1998-07-28 |
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