DE2132746A1 - Process for treating parts - Google Patents

Description

Patent attorney
Dipl .-? Ng. Waltsr Jackis A.

3 Stuttösft U, Menzelstrasse 40 - 9 1 ^? 7 / R

William Boulton Limited June 30, 197J

Navigation Road

Burslem, Stoke-on-Trent

Staffordshire / England A 32 43o-du

Process for treating parts

The invention relates to the treatment of parts or Components and is, for example, applicable for drying, cleaning or degreasing such objects.

According to the invention, a method for treating Parts proposed in which the parts are immersed in a volume of a treatment medium and the parts as well vibrating the medium and causing the parts to move up and around a helical path as well as from the volume of the Medium to move while they undergo orbital motion in substantially vertical planes.

The treatment medium can be a cleaning or degreasing liquid or can be a drying medium such as, for example a dehumidifying fluid or corn or sawdust. In some cases, the method can include the step of applying heat to the medium.

According to the invention an apparatus for the ¹ treatment of parts is also proposed which has a chamber for receiving a volume of a treating medium, and to be treated parts, a vertically aligned

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Spiral path is provided for receiving the parts., Whose lower end is operatively connected to the bottom of the chamber and designed to receive the parts, furthermore means for producing a vibratory movement of the chamber and the spiral path are provided to the parts according to up-and-along the path and move out of the volume of the treatment liquid and during this movement one Orbital movement in substantially vertical planes.

The path is preferably arranged within the chamber, but can also extend around the outside of the chamber.

The treatment medium can be a cleaning or degreasing medium
liquid or a drying medium such as a

Contains dehumidifying fluid or corn or sawdust. In some cases, the device may have a device for Application of the medium with heat included. This can be done by means of a heating chamber, which is located below the Main chamber is arranged and has a heating coil. Alternatively, hot air could be from an outside location Source into a similar heating chamber or directly into the main " chamber are introduced.

The vibration movement is preferably generated with the aid of a vertically arranged motor, the shaft of which is equipped with an eccentric weights is connected and which is attached to the chamber, wherein the chamber is elastically supported on a stationary base is. The eccentricity of one or both weights is preferably adjustable or changeable by one To enable regulation of the vibration movement.

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The spiral path can be a closed tube, but is preferably an open channel. If corn or a A similar drying medium is used is the bottom of the Channel or tube is preferably perforated adjacent its upper outlet end so that the corn can be returned to the Chamber falls and the parts continue to move to an outlet port. When a closed tube is used its upper end can be open at the top in order to observe the workpieces or the supply line from To allow air, washing liquid or other media to the parts, which, for example, before their delivery have been degreased by the machine. The chamber can be closed by a removable top or cover be, which can be provided with a viewing window.

Vibration devices which generate the movement required for the effective operation of the device according to the invention, have been suggested for other purposes. In this respect, the invention can be achieved by a housing, which is designed for arrangement on a suitable vibration device. Thus, according to a further feature the invention provides a device for treating parts, which has a chamber for receiving a volume of a Treatment liquid and parts to be treated as well has a vertically arranged spiral path for receiving the file, the lower end of which connects to the bottom of the chamber k $ communicated or in relation to the parts to be treated in Line connection is.

The device may have a heating cell for transferring heat to the chamber.

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Embodiments of the invention are described below as an example with reference to the drawings. They are shown in:

Fig. 1 is a sectional view of a vibration dryer,

Pig. 2 is a plan view of the dryer according to FIG

Pig. 1 with the top cover removed,

. Pig. 3 another exemplary embodiment of an upper * cover,

Pig. 4 and 5

Views similar to the Pig. 1 and 2 which show a vibration degreaser and

FIG. 6 is a schematic view of the liquid circulation system on the machine according to FIG 4 and 5 is provided.

According to FIGS. 1 and 2, the dryer consists of a housing unit 3, which is arranged on a vibrating device 4. The housing unit has a cylindrical chamber 5, ^ in which / spiral-shaped channel 6 open at the top is arranged is. The channel extends from the bottom of the chamber over three quarters of a turn to a high outlet opening 7. The part 8 of the channel adjacent to the outlet opening is for perforated and perforated for a purpose described later

one

the chamber walls are covered with synthetic rubber or other suitable, provided lining, not shown. The chamber has a conical bottom 9, under which a Heating cell 1o is located, which contains a heating coil 11. the Chamber is provided with a top cover 12, which is a

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in Pig. 1 as well as in Pig. 2 inlet chute shown in dashed lines 13 has. This chute makes it necessary that the machine is loaded from one place, wherein this chute can be replaced with a funnel-shaped top cover if necessary, as at 12a in Pig. 3 is shown to be a pull around the whole machine to enable.

The vibration device 4 has a cylindrical bottom 15 on which an annular arrangement of compression springs 16, an annular support or platform 17 is held, which is a downwardly hanging cylindrical Cuff 18 which is stiffened by struts 19 connected to the platform. A vibration motor 2o is inside attached to the cuff 18 by upper and lower circular support rings 21 and 22. The motor shaft 23 extends located above and below the motor housing and is equipped with eccentric weights that can be adjusted with respect to the angular position 24, 25 connected. As a result of these weights and the elastic arrangement of the motor unit gives the rotation of the motor of the platform 17 and thus the housing arranged thereon a torsional oscillating movement in the form of a high frequency Rotary oscillation around the central axis of the motor and housing with an up and down component in this movement. Of the Space 26 formed between the bottom of the housing unit and the platform 17 serves to isolate the vibration device opposite the heater 11.

The machine is provided with a number of transport wheels 3o, which are arranged on fork holders 31 which are attached to the inner circumference of the base 15 of the vibration device. A corresponding number of manually operable hydraulic stands 32 is provided on the outer circumference of the base 15 and can be used for

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The machine can be extended to carry the machine and lift its wheels off the ground during operation. This is a non-mandatory feature which, if desired, can be omitted entirely to result in a stationary machine, mounted on the Base 15 stands _#

During the operation of the device, a quantity of a drying medium, like corn on the bottom of chamber 5 arranged. The maize is collected from above with the help of chute 13 introduced through the top cover 12 and falls through the

^ Center of the spiral in the chamber. The amount of used Corn or the other drying medium can be different however, a typical height up to which the Chamber can be filled, indicated by the dashed line L. in Pig. 1 specified. The heating coil 11 is then turned on. switches to raise the temperature of the corn and the engine is started. Compartment for a sufficient period of time during which the corn is the greatest predetermined, thereafter by a Thermostat control maintains a constant temperature, the parts to be treated are on the chute 13 in the dropped heated corn. The vibrations transmitted on the corn and parts cause along with the conical Shape the chamber bottom that the mixture outwards and then

ψ migrates upwards along the spiral channel 6, while at the same time it is subjected to a path movement in substantially vertical planes. This produces an extremely quick and effective drying process and when it reaches the upper end of the spiral, the corn falls through the perforated part 8 of the channel bottom »back into the chamber, while the parts move on under the influence of the vibration and from the machine through the outlet opening 7 can be handed in, which ends in a discharge chute *

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The machine shown in FIGS. 4 to 6 is, in terms of its basic construction, the dryer according to FIGS. 1 to 3 similar, but designed for degreasing parts. It consists of a vibrating device attached * - arranged housing unit, the vibrating device being identical in construction to the vibrating device 1 and 2, however, without the transport wheels. The housing unit is also similar to that according to FIGS. 1 to and has a cylindrical chamber 35 containing a helical, open-topped channel 36 leading from the bottom rises over three quarters of a turn to a high outlet opening 37. The upper end 38 of the channel is perforated and the chamber has a conical bottom 39, below which is a heating cell 4o which contains a heating coil 41.

A weir 45 is arranged within the chamber 35 and is slightly away from the chamber wall to form a curved free space 46. An outlet pipe 47 is in line connection with the free space and with a return tank or container 48 (Fig. 6). The arrangement is such that Degreasing fluid in the chamber by overflowing

held

the weir 45 at constant height and from the tank 48 in the circuit is returned to a spray tube 49, which is above of the channel 36 is arranged and that the degreasing liquid on the workpieces moving up the channel as shown by arrows in FIG.

According to 'Fig. 6, liquid accumulated in the free space 46 flows along the tube 47 and enters a sludge separator 5ο in the return tank. The dirt separator contains for relief a removable container 51 for cleaning,

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the liquid flowing out of the separator over a partition wall 52 and through a second chamber 53 which it through a perforated grid 54. at the foot of the wall 55 on the opposite side of the wall 52 of the chamber. This bottom outlet allows any swimming pool cleaning on the surface of the liquid in the chamber 53 in the form of a "foam". The sludge-free and foam-free liquid then enters a further chamber 56, which if necessary, contains a heater 57 and a pump 58, which are driven by a motor 59 via a shaft 60. is driven. The pump sucks the liquid through a filter 61 into the pipe 62, from where it is transferred to the spray pipe 49 and the spiral channel 36 is discharged. A drain pipe 63 also redirects from the bottom of the chamber 35 to the return tank to allow the chamber to be emptied if desired. The drain pipe has a shut-off tap 64.

The device can be used for alkaline or solvent degreasing. In the first case it will be the liquid heated with the heating coil 41 and the tank heater 57 and that removed from the workpieces converted into emulsion Fat can be observed as foam in chamber 53. If a dissolving solution is used, so can ™ heated or not heated depending on the circumstances will. In both cases, and especially when heated solutions are required, vapors are emitted, which is why a coil-like condensation coil 7o is provided below the top cover 12 for the condensation of the vapors. It is also a vapor extraction device indicated at 71 provided above the chute 13 to remove uncondensed 'vapors.

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Although not shown, the chamber and channel walls are suitably lined, the lining of FIG the degreasing solution used and the type and size of the workpieces. The lining of both the chamber as well as the channel must be resistant to the solution used and it can also be useful to use it with To provide a certain degree of elasticity to prevent damage to the workpieces from contact with the channel walls to avoid. Synthetic rubber and plastic materials are possible linings and in some cases the duct can be made entirely of plastic.

During operation, the chamber is filled up to the top of its weir with the degreasing liquid, which, if appropriate, is heated and circulated through the tank by pump 58. The parts to be degreased are covered with a Carrier medium introduced through the chute 13, the carrier medium being of a substantially loose type of granulate and made of a material that is resistant to the removal solution and not damaging the parts tend. Essentially spherical parts made of - ■ .., Zircon has proven to be particularly suitable as a carrier medium exposed. The vibratory movement transmitted to the chamber by the vibrating device co-forces The conical shape of the chamber floor slashed the charge from the carrier medium and parts, moving outward across the floor and up around the spiral through the degreasing liquid to increase, while the charge of a trajectory ip essentially vertical planes as well as being subjected to above. This movement of the parts in the degreasing liquid causes a very effective degreasing.

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As the parts move up the spiral channel, they are lifted out of the liquid, but are then of the effect the liquid returned through the spray tube 49 exposed. This liquid flows down the channel into the chamber, leaving excess liquid flows over the weir 45 and, as previously described, is returned in the circuit. When the charge is from the carrier medium and splitting reaches the upper perforated portion 38 of the channel, the carrier medium falls through the holes for reuse back in the chamber while the degreasing parts along section 38 through the Yibrationsffekt moved and discharged from the machine through the outlet port 37.

It is to be noted that in the machines described in Beüen the channel is of curved cross-section and extends over a substantial part of 360 °. This form supports the retention of the drying medium or the carrier medium in the case of degreasing and at the same time allows the workpieces during their movement out of the open top of the channel to preside. This happens with some workpieces, which is why an open top channel is essential in such cases. In some circumstances a completely closed tube P can be used, but an open channel is essentially an open channel to prefer. The channel preferably has a curved bottom and either extends, as described, over an arc of more than 180 ° or has parallel vertical sides projecting up from the curved floor. The shape must be such that the desired path movement of the load is achieved without the workpieces, the media or the Fluid may be thrown out of the canal.

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There are also other embodiments of the invention than the ones described are conceivable. For example, the spiral channel can have any suitable number of turns and Cross bars or dams have around; to aid the upward movement of the mix. Furthermore, numerous different Drying media, for example a dehumidifying liquid, can be used and in some cases the Heating cell will be unnecessary. If a heater is provided, it can be by an electrical element, a steam or Hot water snake, hot air, or other known smock. In a further embodiment, the chamber have a convex, more part spherical than conical bottom to aid the outward movement of the parts and treatment medium towards the lower end of the spiral. the Spiral may extend around the outside of the chamber instead of the arrangement shown within the chamber. the The time span during which the parts are immersed in the treatment liquid can be adjusted by adjusting the Eccentric weights 24 and 25 can be changed, with which the vibratory movement is changed. The modification according to Fig. can be provided in the device according to FIGS.

The machines described are space-saving and proportionate simple construction and can be used as part of a continuous production line, whereby untreated parts continuously from a conveyor or other suitable delivery device into the chamber dropped and treated parts continuously from the discharge chute into bin, conveyor or other suitable Recordings are collected. The length of the perforated upper end of the spiral channel can vary depending on the type

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of the treated workpieces are changed and the vibratory movement may be by means other than a motor connected to eccentric weights, for example by electromagnetic Funds are generated. In addition, it has been found that the vibration machines according to the invention have shared motion causes little or no damage to the treated parts. .

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Claims (1)

Expectations rx, A method of treating parts characterized by immersing the parts in a volume of treating medium, vibrating the parts and medium, and causing the parts to move up and around a helical path and out to move the volume of the medium while they perform a path movement in wesent union vertical planes. 2. The method according to claim 1, characterized in that the treatment medium a drying medium »eats, of which a portion goes with the parts from the volume of the medium, while they move up and ma the path. 5. The method according to claim 1, characterized in that the treatment medium is a cleaning or degreasing liquid. 4. The method according to claim 3, characterized in that a carrier medium with the parts is introduced into the volume of the treatment medium and see the ropes moved out of the volume of the medium while moving up and around the path. . 5. The method according to claim 2 or 4, characterized in that the treatment or carrier medium of the parts in separated by an elevated position and the volume of the medium, in which were first introduced, Kurüc misled will. I 0 9 B 8 6 / I hl 7 BATH ORIGINAL. 6. The method according to any one of claims 3 to 5 _f, characterized in that the liquid is continuously removed, filtered and returned in the circuit. 7. The method according to any one of the preceding claims, characterized in that the treatment medium B _e with heat beaufschlag-t is. 8. Device for treating parts, characterized in that a chamber (5) for receiving a Volume of a treatment medium and parts to be treated is provided and that a vertically oriented Spiral path (6) is provided for picking up the parts, the lower volume of which is operatively connected to the bottom (9) of the chamber (5) is. 9. Apparatus according to claim 8, characterized in that a device (16, 2o to 25) for moving the parts upwards and along the spiral path (6) and from the volume of the treatment liquid and for moving the parts in substantially vertical planes Eratugung a vibratory movement of the spiral path (6) is provided . 10. Apparatus according to claim 8 or 9, characterized in that the spiral path (6) is arranged within the chamber (5) . ·. · ■ 11. Device according to one of claims 8 to 1o, characterized in that a section (8) of the spiral path (6) extends over the chamber. (5) frightened and for falling back clea enfcLariii dtiiu path πι L bgenommeuen Behänd Lun / jiimeiiiuras in the chamber ( ^r >) fjeLochb leb, 09 ö 8 6 /! i 97 BATH ORIGINAL -r- 12. Device according to one of claims 8 to 11, characterized characterized in that the chamber (5) has a bottom (9) which is raised in the center and from the center slopes downwards and outwards. 13. Device according to one of claims 8 to 12, characterized by a device (11) for acting on the chamber (5) with heat. 14. The device according to claim 13, characterized in that the device for acting on the chamber (5) is formed with heat by a heating coil which is arranged below the bottom (9) of the chamber (5). 15. Device according to one of claims 8 to 14, characterized in that the channel-like path (6) is curved Has cross section and extends over an angle of more than 180 °. 16. Device according to one of claims 8 to 14, characterized in that the path (6) has a curved bottom and has parallel vertical side walls. 17. Device according to one of claims 8 to 16, for cleaning or degreasing of parts, characterized in that a device (45) for keeping the level of the Cleaning or degreasing liquid in the chamber (5) and means (46 to 62) for filtering and recycling excess withdrawn from the chamber Liquid is provided. 109086/1197 18. Gate direction according to claim 17, characterized by a device (7o, 71) for condensing the vapors given off by the liquid and for removing them non-condensed vapors. 19. "Device according to one of claims 9 to 18, characterized characterized in that the device for generating a vibratory movement comprises a vertically arranged motor (2o) has, the shaft (23) of which with eccentric weights (24, 25) is provided, whereby the motor (2o) is attached to the chamber (5) and the latter is elastically supported on a fixed P standing base is arranged. 20. Apparatus according to claim 19, characterized in that the eccentricity of one or both weights (24, 25) is adjustable. 21. Device according to one of claims 8 to 2o, characterized by ground running wheels (3o) for transport purposes and means (32) for lifting the wheels off the ground during operation. 109886/1197 Blank page