EP0571394A1 - Degreasing device for mass-produced items. - Google Patents
Degreasing device for mass-produced items.Info
- Publication number
- EP0571394A1 EP0571394A1 EP92901273A EP92901273A EP0571394A1 EP 0571394 A1 EP0571394 A1 EP 0571394A1 EP 92901273 A EP92901273 A EP 92901273A EP 92901273 A EP92901273 A EP 92901273A EP 0571394 A1 EP0571394 A1 EP 0571394A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- degreasing
- degreasing device
- ring
- oil
- 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
- 238000005238 degreasing Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005237 degreasing agent Methods 0.000 claims description 25
- 239000013527 degreasing agent Substances 0.000 claims description 24
- 239000003921 oil Substances 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000008041 oiling agent Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000346 nonvolatile oil Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/04—Apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
- B04B11/05—Base discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/06—Cleaning involving contact with liquid using perforated drums in which the article or material is placed
Definitions
- Bulk parts, especially metallic bulk parts, are greased with expensive drawing oils for pretreatment, especially for mechanical deformation, in order to enable easy sliding in the mold. After the pretreatment, this oil must be removed again in order to clean the parts and for further use or post-treatment, e.g. in the form of a lacquer.
- This degreasing has hitherto occurred in such a way that the parts are washed in a drum with a degreasing agent, such as a cold cleaner or a cleaner on a basic basis. After cleaning, a mixture of oil and degreasing agent is formed, which has to be disposed of in a costly manner. The oil used and the degreasing agent are practically lost for the user.
- the object of the invention is therefore the degreasing process
- REPLACEMENT LEAF to improve in such a way that it is not only shorter, but is also reduced in material costs.
- the perforated casing of the drum allows the oil to be thrown off the mass parts by a centrifugal process and can be passed to the outside.
- the high proportion of the oil extracted in this way from the parts is surprising.
- degreasing agent into the running drum, this also penetrates the parts lying against the casing of the drum due to the centrifugal force and cleans them of the residual oil still adhering.
- the oil can be collected and reused on its own. The oil can thus be returned to the production process immediately.
- the degreasing agent enriched with the oil is collected separately and can be reused several times until the oil content has reached a predetermined upper limit.
- 1 shows a partially sectioned view of the degreasing device
- 2 shows a partially sectioned side view of the degreasing device.
- the degreasing device for mass parts in particular made of metallic material, according to. 1 and 2 from a base frame 1, on which a preferably closed, consisting of profiles and wall parts machine housing 2 is built.
- Horizontal support elements 3 are attached to the profiles, which support a bearing ring 4 centrally.
- a bearing tube 5 projects through this and is rigidly connected to the bearing ring 4.
- a hollow shaft 6 is rotatably mounted inside in the bearing tube 5 in an upper bearing 7 and a lower bearing 8. At the lower end of the hollow shaft 6 protruding from the bearing tube 5, a drive wheel 9 and a brake wheel 10 are rotatably mounted.
- the upper end of the hollow shaft 6 carries a drive head 11 to which a plurality of radial support arms 12 are fastened which are arranged on the outside of the cone-shaped bottom 13 of a drum 14 in a rotationally fixed manner.
- the bottom 13 of the drum 14 is full-surface, whereas the zy1 i nderför-shaped casing 15 is provided with a perforation 16.
- the upper end of the casing 15 is shaped into an inwardly projecting collar 17 which surrounds the loading opening 52.
- a circular opening 18 is provided, which can be closed by a correspondingly adapted cover 19.
- the latter is supported by an axis 20 projecting through the hollow shaft 6, which projects from the bottom of the hollow shaft 6 and extends right up to the base frame 1.
- a horizontal arm 21 which is attached to the piston rod of a Stel lzyl Indian 22.
- the latter is arranged on the support elements 3.
- the drive wheel 9 is via a V-belt 23 or the like.
- the brake wheel 10 is wrapped by a brake band 34, which can be pulled against the brake wheel 10 by a setting cylinder 35 in order to brake the drum 14.
- the inner edge of the trough 31 is connected to an unloading ring 36, which in turn carries at its lower end a chute 37 sloping obliquely to one side.
- the outer end of the chute 37 ends at or in the vicinity of the machine housing 2, so that parts falling out get into a container or the like.
- a lifting cylinder attached to the bearing ring 4 is used to lift the chute 37 and thus also the unloading ring 36 and the catch casing 29 inder 39, which is supported on the chute 37 via a holder 40.
- a filling funnel 41 arranged above the drum 14 serves to fill the parts, the lower opening of which can be closed by a slide 42.
- An actuating cylinder mounted on the machine housing 2 is used to actuate the slide 42.
- the parts to be treated enter a channel 44 which can be closed by a flap 45 on the funnel side.
- the hopper 41 is expediently designed as a scale or connected to such a scale so that portions of the same size or which can be preset are always filled.
- a compensating device can also be assigned to the part consisting of the catch jacket 29, the unloading ring 36 and the chute 37 in order to compensate for the weight.
- This consists of a cable pull 46, which is guided over rollers 47 mounted on the upper end of the machine housing 2 and is connected both to the catch jacket 29 and to an externally suspended balancing weight 48.
- a container 49 which is equipped with a pump 50, is set up next to or in the vicinity of the machine housing 2. Its pressure side is connected to a pipeline 51, which ends above the loading opening 52 and is directed into the interior of the drum 14.
- a pipe 53 directed into the interior of the drum 14 could also be provided in order to lead hot air into the drum 14 from a heating device in order to shorten the drying process.
- the support arms 12 for the drum 14 can be designed in the shape of a figure so that a draft of air downwards is created by the propeller effect.
- the machine housing 2 should therefore be designed to be essentially tight, so that the air mixed with degreasing agents can be discharged with little loss. If necessary, a suction fan can be provided for this.
- a separator can also be arranged in order to separate air and degreasing agent and to use the degreasing agent thus obtained for further use or to release only unpolluted air to the environment.
- the parts can also be dried without heating, i.e. with cold. or room air are carried out, which is only thrown outwards due to the centrifugal force.
- drying phase can be followed by a preservation phase during which a preservative is introduced into the drum 14 in the manner described above. is sprayed or sprayed in to protect the surface of the parts until the next treatment or production phase.
- the operation of the degreasing device is as follows: as soon as the predetermined amount of parts is in the filling funnel 41 after opening the flap 45, the flap 45 is closed and the slide 42 is pulled into the open position. The parts fall into the drum 14, which can stand still or expediently rotate at a moderate speed, so that the parts lie essentially uniformly on the casing 15. Then it is switched to maximum speed. As a result of the high centrifugal forces, a substantial part of the oil, namely up to 90%, is detached from the parts at this speed and flung outwards onto the catch ring 25. At this point it flows downwards and through the drain 28 to the outside, where it is collected, expediently after filtering to remove foreign bodies, in a container provided exclusively for the oil. Since the oil obtained in this first phase does not contain any foreign additives, it can be reused immediately.
- the catching jacket 29 is raised to the upper end position.
- the unloading ring 36 and the chute 37 also move upward, as indicated by dash-dotted lines in FIGS. 1 and 2.
- the pump 50 is started and degreasing agent is sprayed or sprayed through the pipeline 51 from above into the still rotating drum 14.
- the liquid jet is laid out in such a way that the entire height of the parts abutting the casing 15 is detected.
- the degreasing agent penetrates the jacket of parts lying against the jacket 15, dissolves the oil still present and flows through the perforation 16 against the collecting jacket 29.
- the mixture of oil and degreasing agent then flows downwards and becomes the drainage channel 31 is collected in order to flow to the outside through the drainage opening 32 and the drainage pipe 33. There it is collected in its own container in order to disposal or reuse. This makes the degreasing agent very durable. It is also conceivable to connect the drain pipe 33 to the container 49 so that the degreasing agent is pumped around in a circulation process until a fixed oil content is found. The extracted degreasing agent is of course filtered out to remove foreign objects such as chips. The oil-enriched degreasing agent is pumped out, and the container 49, possibly after cleaning, is filled with pure degreasing agent.
- This second treatment phase can be carried out in a single section or in several sections. After such a section has timed out, the speed is reduced or the drum 14 is stopped, so that the parts collapse onto the drum base 13. Then the speed is increased again and cleaner degreasing agent is injected or sprayed in from another container. If the mixture in the first container 49 is sufficiently enriched with oil, the mixture is pumped out and replaced by pure one. The second container 49 then takes the place of the first and the previous one takes the place of the last. Degreasing can be carried out continuously in this way, a high degree of cleaning being achieved.
- This second phase is expediently followed by a third phase in which the parts are dried by cold or room air or hot air.
- the fourth phase is unloading.
- the catch jacket 29 moves into the lower end position, in which the exit opening of the chute 37 is opposite an opening 54 in the machine housing 2.
- the Stel lzyl indder 22 is activated and by means of the arm 21, the axis 20 is pushed upward, so that the lid 19 is lifted out of the opening 18, as shown in Fig. 2.
- the speed of the drum 14 is reduced so that the parts fall out of the drum 14 and through the unloading ring 36 onto the slide 37, where they slide outwards into a container set up there. Because certain subsets Containers with different weight levels can be automatically put together in this way.
- the starting position is acc. 1 is taken up again and the next degreasing process begins again in the manner described.
- a simplified design of the degreasing device is also conceivable.
- the slide 37 is fixed in its lower end position, the unloading position, in a stationary manner.
- the rotary movement of the drum 14 is switched on in the manner described in the first treatment phase and the spun-out oil is collected in a container.
- degreasing agent is injected, which also reaches the catch ring 25 with the dissolved oil and flows out through the drain in order to be collected in a separate container.
- a single section can be carried out, but several sections can also be moved in succession, the outflowing mixture being collected separately.
- the drying and unloading in the third and fourth treatment phases then takes place in the manner described above. Continuous operation is also possible in this embodiment.
- the operating sequence of the degreasing device can be controlled by hand. However, an automatic control is expedient, so that a process that is independent of human hands is ensured.
- the degreasing device can thus be used in a production line, and depending on the type and design of the parts, a suitable program can also be preprogrammed, which is then called up at the given time. This functional sequence also saves on transportation, space requirements for possible temporary storage and also on operating personnel.
- a packaging device can also be installed downstream, so that the parts are packed in portions and expediently provided with an address ready for dispatch from the production line. If the parts are not processed or reused for a long time, the surface can be protected from corrosion by spraying in a preservative. This preservation phase is then followed by the discharge phase.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4100414 | 1991-01-09 | ||
DE4100414A DE4100414C1 (en) | 1991-01-09 | 1991-01-09 | |
PCT/EP1992/000003 WO1992011946A1 (en) | 1991-01-09 | 1992-01-03 | Degreasing device for mass-produced items |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0571394A1 true EP0571394A1 (en) | 1993-12-01 |
EP0571394B1 EP0571394B1 (en) | 1996-03-13 |
Family
ID=6422721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92901273A Expired - Lifetime EP0571394B1 (en) | 1991-01-09 | 1992-01-03 | Degreasing device for mass-produced items |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0571394B1 (en) |
AT (1) | ATE135264T1 (en) |
DE (1) | DE4100414C1 (en) |
DK (1) | DK0571394T3 (en) |
WO (1) | WO1992011946A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111903533A (en) * | 2020-08-21 | 2020-11-10 | 顾炳潮 | Milk separator |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4424183C2 (en) * | 1994-07-08 | 1996-02-01 | Erhardt Mundil | Device for the wet treatment of mass parts |
DE19605576C1 (en) * | 1996-02-15 | 1997-07-10 | Turbo Clean Gmbh | Device for oil impregnation of sintered parts |
US6223756B1 (en) * | 1999-03-31 | 2001-05-01 | Turbo-Clean Gmbh | Apparatus for degreasing solid parts |
DE19933040A1 (en) * | 1999-07-15 | 2001-01-18 | Mann & Hummel Filter | Free jet centrifuge, in particular for cleaning the lubricating oil of an internal combustion engine |
DE102006018774B4 (en) * | 2005-04-21 | 2008-07-10 | Heinz Schulze-Eyssing | Parts cleaning and separating machine |
DE102015118877A1 (en) * | 2015-11-04 | 2017-05-04 | Dr. Ing. Gössling Maschinenfabrik GmbH | Method and device for deoiling and / or cleaning mass parts |
CN110280401B (en) * | 2017-11-20 | 2021-08-10 | 台州锐祥机械设备有限公司 | Industrial production dehydration method with automatic control function |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE345466C (en) * | ||||
US3302794A (en) * | 1964-10-30 | 1967-02-07 | Western States Machine Co | Continuous centrifugal with adjustable liquids separator |
FR1575735A (en) * | 1968-04-17 | 1969-07-25 | ||
DE2544788C2 (en) * | 1975-10-07 | 1985-06-27 | Richard 5202 Hennef Steimel | Centrifuge with bottom discharge |
SE447544B (en) * | 1985-04-11 | 1986-11-24 | Alfa Laval Separation Ab | CENTRIFUGAL SEPARATOR INCLUDING A ROTOR THROUGH ITS PERFORMANCE EXPANDS FOR INTERMITTENT EMISSIONS OF A SEPARATED PRODUCT AND OUTPUTS FOR EMPLOYMENT OF MANOVER LIQUID |
DE3937199A1 (en) * | 1989-11-08 | 1991-05-16 | Heinrichs & Co | Centrifugally rotated sieve box to clean metal parts - has washing liq. directed from centrifuge axle nozzles parts to remove cutting oils and metal turnings |
DE3939663A1 (en) * | 1989-11-30 | 1991-06-06 | Georg Von Dipl Ing Bormann | Oil contaminated metal turning drying-cleaning - using centrifuge and drier and pre-wetting turnings with heated oil |
-
1991
- 1991-01-09 DE DE4100414A patent/DE4100414C1/de not_active Expired - Lifetime
-
1992
- 1992-01-03 AT AT92901273T patent/ATE135264T1/en not_active IP Right Cessation
- 1992-01-03 DK DK92901273.0T patent/DK0571394T3/en active
- 1992-01-03 WO PCT/EP1992/000003 patent/WO1992011946A1/en active IP Right Grant
- 1992-01-03 EP EP92901273A patent/EP0571394B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9211946A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111903533A (en) * | 2020-08-21 | 2020-11-10 | 顾炳潮 | Milk separator |
Also Published As
Publication number | Publication date |
---|---|
DK0571394T3 (en) | 1996-07-22 |
EP0571394B1 (en) | 1996-03-13 |
WO1992011946A1 (en) | 1992-07-23 |
ATE135264T1 (en) | 1996-03-15 |
DE4100414C1 (en) | 1992-04-23 |
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