DE19914746A1 - Ultrasonic washing machine for screws, nuts, etc. - Google Patents

Abstract

The machine has a rotary conveyor (1) to move objects to be washed through a cleaning medium. The objects enter the conveyor at one end and are moved to a discharge end on a higher level, while being turned irregularly. An ultrasonic washing device (6) washes the objects. A jet washer mechanism (31) on the discharge side directs a cleaning fluid jet against the objects, which have been raised above the level of the cleaning medium. The machine has a cylindrical drum (2) with bores, a helical panel element (5) on the inside to move the objects, and a drive. An ultrasonic washing trough (7) with cleaning fluid and an ultrasonic oscillator (8) extends around the lower end of the drum.

Description

The invention relates to an ultrasonic washing machine direction and an ultrasonic washing system and in particular on the ultrasonic washing of an object that is not in remains in one position, but encouraged and supported by one Position is moved to another.

Conventionally, various types of Ultra sound washing devices used. The conventional ones Ultrasonic washers can be roughly divided into three methods types. In method A, the objects to be washed in random or stacked Condition placed in a basket so that it is the Ultra sonic wash in a water environment or water exposed to jet cleaning; in method B, such as disclosed in JP-A-8-299926, those to be washed Objects arranged in a basket (drum) placed on it and moving in water while the Ultra exposed to sonic washing; in procedure C. the objects to be washed from one end of a cylinder the drum moved to the other end, the drum is positioned horizontally while doing the ultrasound wash in a water environment or water jet cleaner be exposed.

Method A mentioned above has the problem that the objects to be washed remain in one position and some of its sections have not been cleaned sufficiently can be.

Method B mentioned above has the problem that a large tub (detergent tub) is required is to place the basket of the ones to be washed Contains objects. This enlarges the entire device and the consumption of cleaning agents.  

In these procedures A and B, the washed Objects are removed from the basket (the drum), before other objects to be washed are put in. This step interrupts the washing procedure.

Process C mentioned above is characterized in that that the objects to be washed in a rotating basket (drum) with a helical conveyor element on the Inner wall are given horizontally in a water tray is positioned (detergent tray) and ge is rotated while the objects inside along the helical conveyor element are moved. This enables the washing procedure to continue without interruption to execute. The cleaning agent, however, the dust and contains other rotting materials from those to the cleaning objects have been removed as well conveyed from one end to the other end of the drum. That is, the rotting material that is washed by them the objects has been removed, can be sent to the Stick to objects. This reduces the cleaning quality clear.

In addition, the method B has the problem that the Objects that have been subjected to jet cleaning are drops of water with rotting material in the water create a tub that contaminates the water. It is therefore impossible to put the water in the water tub for one to keep clean for a long period of time.

Furthermore, in method C, the washing device is under the assumption that the position of the washing objects immediately below the center line the drum and an ultrasonic oscillator or Water jet nozzle is arranged at a position that assigned to this position.  

However, the objects to be washed are promoted, weh rend on the downstream side of the direction of rotation be rotated. Therefore, it was found that the Ultra sonic wash or water jet cleaning using this device is unsatisfactory.

The invention has for its object the disadvantages to eliminate the above-mentioned prior art and an ultrasonic washer and an ultrasonic washing system to create a continuous Nuclear surgery with a high quality To provide cleaning and high reliability as well as excellent durability and light weight Maintain maintainability.

According to a further aspect of the invention, a Ultrasonic washer created a washing bathtub over a long period of time in a clean Condition.

According to a further aspect of the invention, a Ultrasonic washer created an object can wash more effectively.

The ultrasonic washing device according to the invention comprises: a rotary conveyor for conveying to washing objects by a detergent that is in the rotary conveyor at its first end (Inlet side) have been inserted so that they are up to their second end (outlet end), which in is positioned higher than the first end while being rolled irregularly; an ultra sound washing device for ultrasonic washing of the Rotary conveyor through the detergent changed objects; and a jet washing mechanism that  the outlet side is arranged to contain a cleaning agent to be directed in a beam at the objects above the Surface of the detergent.

More specifically, the ultrasonic washer comprises: one cylindrical drum with through holes in it entire circumferential surface and a helical plate element that is mounted on its inner wall is to wash objects from a first end that serves as the inlet side, up to a second end, which as Outlet side serves to promote; a drum drive me mechanism for rotating the cylindrical drum; one Rotary holding mechanism for holding the cylindrical drum such that they are at a given angle to Hori zontalebene can rotate about an axis, so that the inlet is located at a lower position than the outlet side; an ultrasonic wash basin with a detergent is filled to a lower end the cylindrical drum in which to be washed Objects are arranged to submerge; an ultra sound oscillator, which is in the ultrasonic wash basin is arranged around the objects in the cylindrical drum wash by ultrasound; and a jet wash mechanism, one at an opening of the second end from the cylindrical drum has to cut a given liquid in one Point the beam at the objects to be washed.

The cylindrical drum is held so that a Opening of the first page partly in the detergent, that is contained in the ultrasonic wash basin is immersed and an opening of the second end completely above the surface of the in the ultrasonic wash tub contained detergent.  

The helical plate element has preferably a predetermined lead over its entire length Surface. The projection can be circular by means of several be formed projections, or by means of a going wire or a continuous network element, such as B. a metal network.

The cylindrical drum is preferably with a Main cover covered, which has an opening at the inlet side and on the outlet side of the cylindrical drum owns.

The ultrasonic washer preferably comprises an air blowing mechanism with an air nozzle cut that provided at the opening of the outlet side is to direct a jet of air at the objects that which have been subjected to jet washing.

The device preferably further comprises a reini agent output port, which is at the first end of the cylin Drum drum is provided so that the cleaning medium in the ultrasonic washing tub with oil and others Contaminants can overflow.

The ultrasonic washer preferably comprises also an air bladder arranged at one position net, which is assigned to the air nozzle section, and is arranged next to the ultrasonic washing tub, which itself extends to a position that the cleaning is assigned to the jet nozzle section.

In addition, the ultrasonic washing tub and the air form Blow pan preferably a composite pan, which differs from the first end to the second end of the cylindrical trom mel extends and has a separator to the compo sit tub in a main section called ultrasound  wash basin, and a subsection that serves as Air bubble pan serves to divide.

The ultrasonic washing tub preferably has one Soil that defines in the middle of the conveying direction a first section and a second section in is bent at an angle of less than 180 °, the Ultrasonic oscillator is arranged in the first section.

The ultrasonic washer preferably comprises a liquid level detection device, the between the bending position and the separating element in the Ultrasonic washing tub is arranged.

The ultrasonic washer preferably comprises also: a main cover to cover the cylinder trough that covers the lower section, that of the Ultra sonic washing tub is facing, excludes; an on drive mechanism cover to cover the drum drive mechanism; and a detergent recovery tion device for recovering the cleaning agent means that in the drive mechanism cover and in the Air bubble tray arrives.

The helical plate element attached to the Inner wall of the cylindrical drum is mounted preferably several through holes on it entire surface.

The ultrasonic oscillator is preferably on one Position arranged by the position immediately below the central axis of rotation of the cylindrical Drum slightly downstream of the rotation of the cylindrical drum is shifted.  

In the jet washing mechanism is the jet nozzle section preferably arranged so that it is not a liquid towards a middle position immediately below the central axis of rotation of the cylindrical drum but something towards the position Middle position shifted in the downstream direction. Except that is the jet nozzle section near the center axis of the cylindrical drum arranged and has a beam direction that is not vertical, but at a certain angle with respect to the vertical line in Direction of the downstream side of the rotation of the cylindri drum.

Further, in the air blowing mechanism, the air blowing section arranged so that it extends from the second end of the cylindrical Drum protrudes slightly, but is still inside half of the main cover. The air nozzle section has several air nozzles arranged in a matrix and whose direction is not set in parallel, but so that the direction of inclination of the screw intersects with the nieniform plate element.

The ultrasonic washer also includes one Detergent reservoir, being the jet wash mechanism contains: a connecting line connecting the Detergent storage container and the jet nozzles cut connects; a pump in this connection line is provided to feed the cleaning to effect by; a bypass line that the Downstream of the pump and detergent Council container connects; and a flow control valve, which is located in the bypass line.

The ultrasonic washing system according to the invention comprises an ultrasound washing device to a large extent to; a second ultrasonic washing device for rinsing  len; and a guide mechanism between the first ultrasonic washer and the second ultra sound washing device is provided; each of the first and second ultrasonic washers include: one Rotary conveyor for conveying items to be washed Objects in the rotary conveyor on your first end (inlet side) have been inserted through a detergent so that it can be used until its second End (outlet side) are promoted at a higher end Position is arranged as the first end, while the Objects are rolled irregularly; an ultrasound washing device for ultrasonic washing of the Rotary conveyor through the detergent changed objects; and a jet washing mechanism that the outlet side is provided to a cleaning agent to aim in a beam at the object that is above the Surface of the detergent has been raised, the second ultrasonic washing device for rinsing may further include an air jet mechanism that has an air nozzle section on the outlet side the cylindrical drum is provided to apply air to the Blow objects that are flushed by the jet washing mechanism have been.

Other features and advantages of the present invention will become clear upon reading the following description preferred versions based on the attached drawing reference; show it:

Fig. 1 of an ultrasonic washing apparatus accelerator as a first embodiment of the present invention shows a schematic view showing a ration Configu;

Fig. 2 is an external view of the ultrasonic washing device of Fig. 1;

Fig. 3 is a plan view of the ultrasonic washing device of Fig. 2 with some portions cut off;

Fig. 4 is a cross sectional view of a cylindrical drum shown in Fig. 1;

FIG. 5 shows a positional relationship between the cylindrical drum and an ultrasonic washing tub shown in FIG. 1;

Fig. 6 is a front view of the cylindrical drum and the ultrasonic washing tub, seen from A-A in Fig. 5, with some sections cut off;

Fig. 7 is a front view of the cylindrical drum and the ultrasonic washing tub, viewed from the arrow BB in Fig. 5 with some sections omitted.

Fig. 8 is a front view of the drum viewed in the direction of arrow AA in Fig. 4, with some sections omitted.

Figure 9 is a cross-sectional view of the drum viewed in the direction of arrow CC in Figure 8, with some portions omitted;

Fig. 10 is a view showing modified examples of the drum shown in Fig. 9;

10A is a drum which has two wires as a projection.

10B is a drum having three wires as a projection.

Fig. 10C a drum that has a wire mesh as a jump before;

Figure 11 is a front view of the drum in the direction of arrow BB in Figure 4, with some sections are omitted.

Fig. 12 shows a detailed configuration of a liquid jet washing mechanism together with the drum shown in Fig. 1;

Fig. 13 is a front view of the liquid jet washing mechanism together with the drum in the direction of the arrow QQ in Fig. 12, with some portions omitted;

Fig. 14 is a cross sectional view of the liquid jet washing mechanism together with the drum in the direction of arrow RR in Fig. 12, with some portions omitted;

FIG. 15 is an overall configuration of an ultrasonic washing system according to a second embodiment of the invention;

FIG. 16 is an external view of the ultrasonic washing system of Figure 15 with covers.

Fig. 17 is a plan view of the ultrasonic washing system of Fig. 16 with some portions cut away;

FIG. 18 is a block diagram showing a ration Gesamtkonfigu an ultrasonic washing device accelerator as a fifth embodiment of the invention; and

Fig. 19 is a block diagram showing an ultrasonic Gesamtkonfigu ration a washing system according to a sixth embodiment of the present invention.

In the following, with reference to the attached drawing Preferred embodiments of the present invention described.

Version 1

An ultrasonic washing device according to the first embodiment of the present invention is explained below with reference to FIGS. 1 to 14.

The ultrasonic washing device 50 comprises a Drehför dereinrichtung 1 for conveying objects to be washed, such as. B. screws, nuts and washers with a predetermined size, by a cleaning agent. The objects to be washed are put on the inlet side (the left side in FIG. 1) of the rotary conveyor 1 into the rotary conveyor 1 and conveyed to the outlet side (the right side in FIG. 1) while being rotated irregularly. The inlet side is located in a lower position than the outlet side.

The ultrasonic washing device further comprises: an ultrasonic washing device for washing the conveyed objects by means of ultrasound using a cleaning agent; a detergent discharge port 10 arranged upstream (inlet side) of the conveying direction where the detergent can overflow; and a jet washing mechanism 31 arranged downstream (outlet side) to direct a detergent in a jet onto the objects appearing above the detergent level.

The rotary conveyor 1 comprises: a cylindrical drum 2 (see Fig. 1 and Fig. 4) with Durchgangsbohrun gene 2 a on the entire peripheral wall for passing liquid; a drum holding mechanism 3 (see Fig. 7) for rotatably supporting the drum at a predetermined inclination angle α ₀ (α ₀ = 15 ° in Fig. 5) with respect to the rotation center axis of the drum 2 so that the outlet side is slightly raised compared to the inlet side; and a drum drive mechanism 4 for rotating the drum 2 . The angle of inclination α ₀ can be different from 15 °.

Here only the through bores 2 a are shown in FIGS. 4 and 5 and are omitted in the other drawings. In addition, a helical plate member 5 is fixed with a predetermined width along the inner wall of the cylindrical drum 2's . (See Fig. 1 and Fig. 4).

The objects to be washed given in the drum 2 are conveyed from the inlet towards the outlet of the drum while being gradually raised by means of this screw-shaped plate member 5 attached to the rotating cylinder drum 2 .

The cylindrical drum 2 , as described above, has distributed over the entire circumferential wall - through bores 2 a. The cleaning agent can pass through these through bores 2 a into the cylindrical drum 2 and leave it. In addition, several of the through holes 2 a also serve to reduce the weight of the cylindrical drum 2 .

The size of each through hole 2 a is smaller than the size of the objects to be washed. More specifically, in the case in which the cylindrical drum has a diameter of 600 mm for washing screws and washers, the diameter of the through hole 2 a übli usually z. B. 6 to 10 mm. However, the size of the through hole 2 a is not limited to this area.

The ultrasonic washer 6 also includes an ultrasonic washer 7 and an ultrasonic oscillator 8 contained in the case main body 100 .

The ultrasonic washing tub 7 is provided below the cylindrical drum 2 , so that a lower portion of the cylindrical drum 3 is net angeord below the surface of the cleaning agent in the ultrasonic washing tub 7 .

The ultrasonic washing tub 7 also has a bottom which consists of a first section (left section in FIG. 1) at an angle of approximately 2 to 3 ° and a second section (right section in FIG. 1) at an angle of approximately 15 ° the horizontal plane.

The cleaning agent is thus collected in Fig. 1 on the left side, where the dispensing port 10 is located. At the same time, the above-mentioned configuration increases the strength and durability of the ultrasonic wash basin 7 itself.

As shown in Fig. 1, Fig. 2 and Fig. 5, the cylin drical drum 2 is arranged so that its inlet side opening has a lower portion which is immersed in the cleaning agent in the ultrasonic washing tub 7 , while its outlet side opening is above the Surface S of the detergent is located. In Fig. 3 S0 shows a dashed line the surface S and the cylindrical drum 2.

The objects placed in the cylindrical drum 2 at the inlet side thereof are subjected to ultrasonic washing in the cleaning agent while being pushed upwards by the screw-shaped plate element 5 until they appear above the surface of the cleaning agent.

Here, the ultrasonic oscillator 8 is provided on the bottom of the ultrasonic washing tub 7 . More specifically, the ultrasonic oscillator 8 is arranged at a position which is not immediately below the central axis of the cylindrical drum 2 , but is at a position shifted somewhat in the direction of the direction of rotation of the cylindrical drum 2 (see FIG. 3).

On the other hand, the objects within the cylindrical drum 2 fall from the inner wall into a position immediately below the axis of rotation center when they are moved away from the position immediately below the axis of rotation center (raised). Thus, the objects within the cylindrical drum 2 are gradually raised by the helical plate member 5 while repeatedly falling due to their own weight, during which ultrasonic waves for washing are continuously generated by the ultrasonic oscillator 8 .

The ultrasonic washing tub 7 also has the output terminal 10 for dispensing (overflowing) the cleaning agent that has been used for washing. As has been described above, this output port 10 is arranged on the inlet side of the cylindrical drum 2 (in Fig. 1 at the left end).

The cleaning agent that has been used and contains oil and other contaminants overflows from this output port 10 along with the contaminants.

As shown in Fig. 1, Fig. 2, Fig. 5 and Fig. 7, 7 has the ultrasonic washing tub a separator 7 A, which is arranged in the interior in the vicinity of the outlet of the cylindrical drum 2, the ultrasonic washing tub 7 in a main portion 7 A (left in Fig. 1), which is filled with the cleaning agent, and a subsection 7 B (in Fig. 1 right) for recovering the cleaning agent from the air flow applied in a later stage.

The drum holding mechanism 3, as shown in FIGS. 5 and 7, includes in the present embodiment three pairs of support rollers.

The first pair of holding rollers 21 A and 21 B, as shown in Figs. 5 and 7, is attached to the inner wall of the Hauptab section of the ultrasonic washing tub 7 to hold the inlet side of the cylindrical drum 2 via the circular separator 2 E.

Here, the holding rollers 21 A and 21 B are each inclined at 3 ° with respect to the vertical line which runs through the center of rotation of the cylindrical drum 2 . Thus, the weight of the drum 2 is evenly distributed on the holding rollers 21 A and 21 B.

The second pair of holding rollers 22 A and 22 B, as shown in Fig. 7, is fixed to the inner walls of the Hauptab section of the ultrasonic washing tub 7 to rotatably support the peripheral surface of the cylindrical drum 2 .

The holding rollers 22 A and 22 B are thus each inclined at an angle of 60 ° with respect to the vertical line which runs through the center of rotation of the cylindrical drum 2 . Thus, the weight of the cylindri's drum 2 is evenly distributed on the holding rollers 22 A and 22 B.

The third pair of holding rollers 23 A and 23 B, as shown in Fig. 6, is fixed to the case main body 300 at a position associated with the recovery section of the ultrasonic washing tub 7 so that they are in contact with the outer peripheral surface of the cylindrical drum. The first, second and third pairs of holding rollers collectively hold the cylindrical drum 2 so that the cylindrical drum 2 can be rotated.

The holding rollers 23 A and 23 B are z. B. at an angle of 60 ° with respect to the vertical line which passes through the center of rotation of the cylindrical drum 2 , arranged ge tends. Thus, the weight of the cylindri's drum 2 is evenly distributed on the holding rollers 23 A and 23 B.

The cylindrical drum 2 can simply be placed on the holding rollers 21 A, 21 B, 22 A, 22 B, 23 A and 23 B from above. That is, the cylindrical drum 2 can be easily assembled and removed, which greatly facilitates the maintenance work.

FIGS. 5 and 6 show a drum drive mechanism 4 for rotating the cylindrical drum 2. The Trommelan drive mechanism is disposed in the vicinity of the third pair of support rollers 23 A and 23 B.

The drum drive mechanism comprises an endless chain 25 which is fixedly mounted around the cylindrical drum 2 ; a gear 26 which meshes with the endless chain 25 ; a drive motor 27 A for driving this gear 26 ; and a reduction mechanism 27 B.

The speed of this drive motor 27 A is set by a command from a control panel 100 E, which is provided on the housing main body 100 .

The combination of the endless chain 25 and the gear can also be replaced by a gear mechanism, a belt mechanism or another drive mechanism.

The above-mentioned helical plate member 5 , which is arranged on the inner wall of the cylindrical drum 2 in the present embodiment, is made of a stainless steel plate with a thickness of 2 mm and a width of 40 mm, on the assumption that the cylindrical drum 2 is one Has a diameter of 600 mm and is made of stainless steel with a thickness of 2 mm.

This helical plate element 5 , as shown in Fig. 8, has a plurality of through holes 5 a with a diameter of 6 to 10 mm, which are arranged ver over the entire surface or part of the surface. It should be noted that the through holes 5 a with the exception of Fig. 8 are not shown in the figures.

The helical plate element 5 with the through bores 5 a can receive the objects to be cleaned and convey them upwards from the ultrasonic washing tub 7 , the cleaning agent contaminated with various foreign materials remaining behind.

In addition, the helical Plattenele element 5 has several predetermined projections on its surface F for pushing up the objects to be cleaned. Fig. 9 shows one of the projections, which is formed as a circular projection 5 b and in this embodiment, the through hole 5 a surrounds. The projections can also be formed irregularly at other positions.

The projections also serve to adhere a flat object such. B. to prevent a washer on the surface of the helical plate member 5 .

The protrusions may also be formed as shown in FIGS. 10A, 10B and 10C.

Fig. 10A shows two wires which are attached as wire protrusions 5 c on the surface F of the helical plate elements. FIG. 10B shows three wires as a wire projections 5 c to the surface F of the helical plate member 5 is attached. The wire projections 5 c can be arranged in a sine curve on the surface F of the helical plate element 5 . The Fig. 10C shows up cracks 5 d in a continuous web form.

The projection can have any shape if it prevent the sticking of an object to be cleaned  can, including protrusions made by pressing be formed.

As shown in Figs. 1 to 3 and in Figs. 12 to 14 ge, the ultrasonic washing device further includes a cover 30 which is detachably held on the above-mentioned housing main body 100 .

The cover 30 has a first opening 30 A on the inlet side and a second opening 30 B on the outlet side, so that the objects to be cleaned are given through the first opening 30 A in the cylindrical drum 2 and through the second opening 30 B from the cylindrical drum mel 2 can be output.

As shown in Fig. 3, the cover 30 also has maintenance windows 30 a and 30 b, which are arranged symmetrically with respect to the central axis of the cylindrical drum 2 and can be opened for maintenance work.

As shown in FIGS. 1 and 2, a first conveyor belt for feeding the objects to be cleaned into the cylindrical drum 2 is also provided. The objects conveyed by the first conveyor belt 101 are guided by means of a feed guide 100 A, so that they fall into the cylindrical drum 2 . The feed guide 100 A is provided at the first opening 30 A of the cover 30 .

In addition, a second conveyor belt 102 is provided on the outlet side to convey the objects away from the cylindrical drum 2 after washing. The objects that have been washed fall out of the second opening 30 B of the cylindrical drum 2 onto a discharge guide 100 B in order to be passed onto the second conveyor belt 102 .

The discharge guide 100 B is attached to the lower end of the two th opening 30 B of the cover 30 .

The jet washing mechanism 31 is arranged at the outlet opening of the cylindrical drum 2 (see Figs. 12 to 14). The objects which have been subjected to ultrasonic washing and which appear above the surface of the cleaning agent in the main section of the tub 7 are then subjected to washing by means of the cleaning agent in a jet acted upon from above by the jet washing mechanism 31 .

As shown in Fig. 12, the jet washing mechanism 31 comprises a nozzle section 32 with one or more nozzles 32 a and an internal line section 33 for holding the nozzle section 32 , which supplies the cleaning agent under a predetermined pressure.

The internal line section 33 is connected to a line 31 A, which is provided on the outlet side and extends into the cylindrical drum 2 along the central axis thereof in the opposite direction to the feed direction. The nozzle section 32 , which is located at the tip of the internal conduit section 33 , is located approximately in the middle of the length of the cylindrical drum 2 , so that the cleaning agent (in a clean state) is directed in a jet against the objects contained therein Immediately emerge from the detergent (in a dirty state) in the tub 7 . The nozzles (three of them in the present embodiment) are arranged at a predetermined interval in the longitudinal direction of the cylindrical drum 2 .

Even if the objects have foreign materials on their surfaces rialien, the foreign materials  effectively washed off by the cleaning agent in the jet .

The jet nozzles 32 have a jet direction which is inclined toward the downstream side of the rotation of the cylindrical drum 2 against the vertical direction by a predetermined angle (in this embodiment approximately 22.5 °) (see FIG. 13)
This enables the cleaning agent (in a clean state) to be directed in a jet onto the objects that emerge from the cleaning agent (in a dirty state) in the tub 7 .

Furthermore, the center of the jet nozzle section 32 is displaced in relation to the central axis of the cylindrical drum 2 by a predetermined distance f, in this embodiment f is 40 mm, in the direction of the rising side of the rotating cylindrical drum 2 . This enables the beam to be directed effectively at the objects to be washed.

In addition, the objects which have been exposed to the jet of cleaning agent are subsequently exposed to a clean and dry jet of air emanating from the air jet mechanism 35 driven by a compressor 38 in FIG. 1.

The air blowing mechanism 35 includes: an air nozzle section 36 which is arranged at a predetermined position within the cylindrical drum 2 and has one or more air nozzles for blowing air toward the objects to remove (recover) the cleaning agent from the objects have been washed by the cleaning agent; and a line section 37 for supplying air at a predetermined pressure to the air nozzle section 36 . The air nozzles 36 a are net angeord at a predetermined interval in the direction that perpendicularly intersects the central axis of the cylindrical drum 2 .

As shown in Fig. 13, the air nozzles are further arranged to direct an air jet in a direction with a predetermined angle of e.g. B. β ₁ = 30 ° towards the downstream side of the rotation of the cylinder's rule 2 with respect to the vertical line. In addition, the air nozzles are arranged so that the air jet at a predetermined angle of z. B. γ ₁ = 20 ° towards the inlet side with respect to a plane vertical to the central axis of the cylindrical drum 2 .

As shown in Fig. 14, more of the Luftdü sen are also arranged in a direction that is not parallel to the helical plate element 5 , but in this embodiment by an angle of γ ₂ = 20 ° clockwise with respect to a plane vertical to the central axis the cylindrical drum 2 is rotated. This suppresses the return of the blown air from the helical plate member 5 and enables the air to be effectively blown onto the objects to be cleaned.

That is, the arrangement of the air nozzles 36 a creates an air curtain to effectively blow the detergent from the objects that have been washed and to minimize the amount of detergent that is lost.

Further, the air nozzle portion 36 in its middle position is slightly shifted from a vertical plane including the central axis of the cylindrical drum 2 toward the rising side of the cylindrical drum 2 as it rotates. This also enables the objects such. B. completely catch screws and nuts.

As shown in FIGS . 1 and 2, the ultrasonic wash basin 7 is connected to a line leading to a detergent storage container 40 . This detergent supply container is connected to: a first recovery line 41 for recovering the detergent from the main portion of the ultrasonic washing tub 7 , if necessary, such as. B. for an exchange; a second recovery line 42 for recovering the detergent overflowing from the detergent discharge port 10 provided near the main portion (left in the figures) of the ultrasonic washing tub 7 ; and a third recovery line 43 for recovering the cleaning agent from the recovery section (right in the figures) of the ultrasonic washing tub 2 .

In addition, this detergent storage container 40 is connected to: a detergent supply line 44 ; an output line for outputting the cleaning agent from the detergent reservoir 40 when necessary, such as. B. for an exchange; and a line of the jet washing mechanism 31 .

The jet washing mechanism 31 includes: the above-mentioned jet nozzle section 32 ; a detergent supply line 31 A; a pressure pump 31 B, which is provided in this supply line 31 A; a filter 31 C; and the valves 31 E, 31 F and 31 G.

The pressure pump 31 B is turned on and off by a control device (not shown), so that the cleaning agent that has been cleaned is continuously supplied to the jet washing mechanism 31 .

The detergent reservoir 40 has a partition plate 40 A for separating the upper portion of the detergent reservoir 40 into two sections: one for the detergent recovered from the outlet port 10 of the main portion; and the other for the cleaning agent, which has been recovered from the recovery section of the ultrasonic washing tub 7 , so that attached materials (dirt, impurities) in the cleaning agent can be easily removed from the discharge port 10 using an oil separator or the like.

Furthermore, the detergent storage container 40 comprises a heating device (not shown) which is controlled by the control device mentioned above, so that a high cleaning ability of the detergent is maintained.

The following is the operation of the aforementioned first Execution described.

First, the objects to be washed, such as B. screws, nuts and washers, fed from the conveyor belt 101 into the cylindrical drum 2 . More specifically, the objects are guided from the conveyor belt by means of the feed guide 100 A, which is fastened to the housing main body 100 , through the first opening 30 A of the cover 30 into the inlet side (the left side in FIGS . 1 and 2) of the cylindrical drum 2 .

This cylindrical drum 2 forms the main part of the rotary conveyor 1 . The objects put in the cylindrical drum 2 are moved and rolled by the rotation of the cylindrical drum 2 and conveyed toward the outlet end of the cylindrical drum 2 by means of the helical plate member 5 while being subjected to the ultrasonic washing operation with the detergent in the ultrasonic washing tub 7 . The cylindrical drum 2 and the helical plate member 5 have a plurality of through holes, so that the cleaning agent can freely penetrate and flow out.

The objects in the cylindrical drum 2 are conveyed with the rotation of the cylindrical drum 2 downwards and upwards, they fall into a certain height due to its own weight down, while by means of the helical plate member 5 gradually toward the outlet end (in the Fig. 1 and 2, the right end are conveyed) of the cylindrical drum 2.

During this funding, the objects will be lower position of the inlet side to a higher position tion of the outlet side. That is, the too wa objects do not run through the cleaning agent in the horizontal direction, but with a certain one Angle that is a distance from the ultrasonic oscillator for the ultrasonic washing process gradually changed. This allows strips to be removed by ultrasound washing process left behind when the distance between the oscillator and the objects to be washed remains unchanged. This enables the ultrasound washing device according to the present invention, the Objects evenly across their entire surface effectively to wash.

After the objects have been lifted above the surface of the cleaning by means of the ultrasonic washing tub 7 , the objects are exposed to the jet cleaning by means of the jet washing mechanism 31 . The cleaning agent directed onto the objects by means of the jet washing is then removed from the air jet of the air blowing mechanism 35 and conveyed into the recovery section of the ultrasonic washing tub 7 .

The ultrasonic washing process, the jet cleaning process and the air blowing process are carried out while the objects to be washed are conveyed from the inlet side in a lower position to the outlet side in a higher position of the cylindrical drum 2 .

When the air blowing process is completed, the objects in the cylindrical drum 2 are pushed from the screw-shaped plate element 5 through the second opening 30 B of the cover 30 from the cylindrical drum 2 and conveyed by the discharge guide 100 B onto the second conveyor belt 102 , so that they are transported outside.

The above-mentioned ultrasonic washing process, the jet line cleaning process and the air blowing process are without sub refraction carried out continuously. This improves the Washing efficiency clearly.

When the series of the ultrasonic washing process, the jet cleaning process and the air blowing process is in operation, the cleaning agent in the main portion of the ultrasonic washing tub 7 is discharged when it overflows in the direction opposite to the conveying direction of the objects to be wa wa.

This allows the dirt and oil particles to get out in the detergent, to be removed continuously  NEN, so that the dirt and oil par article on the objects to be washed is prevented.

Version 2

An ultrasonic washing system according to a second embodiment of the present invention will now be described with reference to FIGS. 15 and 17.

As shown in FIGS . 15 to 17, the ultrasonic washing system according to the second embodiment includes two ultrasonic washing devices, each having an almost identical configuration. A first ultrasonic washing device 50 and a second ultrasonic washing device 60 have almost the same configuration as the ultrasonic washing device 50 according to the first embodiment, which has been explained with reference to FIGS. 1 to 14.

That is, each of the first and second ultrasonic washers 50 , 60 includes: an ultrasonic washer 56 , 57 ; Rotary conveyors 51 , 61 for conveying objects to be washed in a cleaning agent, which is contained in the ultrasonic washing tub 56 , 57 ; an ultrasonic washing device 56 , 66 for washing the conveyed objects using ultrasound and the cleaning agent; a jet washing mechanism 31 , 71 for washing the objects using a solvent in a jet after the objects from the cleaning agent appear in the ultrasonic washing tub 56 , 57 ; and a detergent discharge port 10 , 70 from which the detergent can overflow in the ultrasonic washing tub. Reference numerals 32 , 72 denote a liquid jet nozzle section.

In this version, the first ultrasonic wash is used direction for washing and the second ultrasonic washing device direction for rinsing.

As shown in FIGS. 15 and 16, a first conveyor belt 101 is further provided on the inlet side of the cylindrical drum 2 of the first ultrasonic washing apparatus 50. The objects to be washed are fed with this conveyor belt and fall into the cylindrical drum 2 via the feed guide 100 A, which is arranged on the housing main body 100 .

Here, the feed guide 100 A is provided at the first opening 30 A of the cover 30 . The objects to be washed are conveyed via this feed guide 100 A onto the sinking inner wall of the cylindrical drum 2 .

As shown in FIGS. 15 and 16, is also a second conveyor belt 102 sound washing device at the outlet side of the second Ultra 60 is arranged. During operation, the objects that have been washed and rinsed fall by themselves from the cylindrical drum 2 onto a discharge guide 100 B and are conveyed onto the second conveyor belt 102 to be discharged to the outside.

Here, the discharge guide 100 B is arranged at the lower end of the second opening 30 B of the cover 30 of the second ultrasonic washing device 60 (for rinsing). The objects that have been washed and rinsed are pushed out through the second opening 30 B, so that they fall on the discharge guide 100 B by their own weight, which they conveyed onto the second conveyor belt 102 .

In addition, a connection guide 100 C between the outlet side of the cylindrical drum 2 of the first ultrasonic washer 50 and the inlet side of the cylindrical drum 2 of the second ultrasonic washing device 60 for washing is arranged.

Thus, the objects that have been washed in the first ultrasonic washing device 50 are automatically conveyed via the connection guide 100 C for rinsing into the second ultrasonic washing device 60 .

In the same manner as described in the first embodiment, the air nozzle portion 36 of the air blowing mechanism 35 is arranged at the second opening of the cylindrical drum 2 of the first and second ultrasonic washers 50 and 60 to direct an air jet onto the objects that have been washed and rinsed.

The first and second ultrasonic washers 50 and 60 have an identical configuration and operate in the same manner as the ultrasonic washer 50 of the first embodiment, which has been explained with reference to FIGS. 1 to 14.

The ultrasonic washing system, which includes the first and second ultrasonic washing devices 50 and 60 , made it possible to improve the cleaning effect significantly without significantly increasing the operating time. The ultrasonic washing system has excellent durability and ease of maintenance, as well as high reliability for high cleaning quality.

Note that the air blowing mechanism 35 in the first ultrasonic washing device 50 can be omitted.

Version 3

First, the ultrasonic washing device 50 shown in FIGS . 1 to 3 comprises a rotary conveyor 1 for conveying objects to be washed, such as. B. screws, nuts and washers with a predetermined size, by a cleaning agent. The objects to be washed (the left side in FIG. 1) in the rotational conveyor 1 at the inlet side and the outlet side thereof (right side in Fig. 1) conveyed while they are rotated irregularly. The inlet side is located in a lower position than the outlet side.

The ultrasonic washing device 50 further comprises: an ultrasonic washing device 6 for washing the objects by means of ultrasound and the cleaning agent; a detergent discharge port 10 located upstream of the conveying direction where the detergent can overflow; a jet washing mechanism 31 at the outlet side for directing a beam onto the detergent properties to the cut out of the cleaning agent in the Hauptab a composite tub 7 (which corresponds to the ultrasonic washing tub of the first embodiment) have been pushed herausge 7; and an air blowing mechanism 35 for directing an air jet at the objects that have been exposed to the cleaning agent jet.

The given in the cylindrical drum 2 objects are gradually pushed up by the helical Plattenele element 5 , which is arranged within the cylindrical drum 2 , while being rolled irregularly by the interaction between their own weight and the force that pushes them upwards will.

In addition, the ultrasonic washing device 6 contains : a composite trough 7 (which corresponds to the ultrasonic washing trough in the first embodiment), which consists of the main section 7 a for ultrasonic washing and a subsection 7 b, which serves as an air blowing trough, these being designed as a one-piece block and are held at the upper section of the housing main body 100 ; and an ultrasonic oscillator 8, which is arranged at the bottom of Hauptab section 7a of the ultrasonic washing tub. 7 The composite tub 7 has an open upper end to accommodate the cylindrical drum 2 so that a lower portion of the cylindrical drum 2 in the cleaning agent, which fills the main portion of the ultrasonic washing tub 7 , which forms a diving area S ₀ (see Fig. 3), is immersed.

The composite trough 7 extends almost over the entire length of the cylindrical drum 2 , in which the cleaning agent jet section 32 and the air nozzle sections 36 are arranged in this order in the conveying direction. The partition plate 7 A between the Hauptab section and the recovery section is arranged at a position between the detergent jet position and the air jet position.

Thus, the air is taken in by the air blowing mechanism 35 from the recovery section. That is, the detergent for ultrasonic washing cannot be disturbed by the air from the air blowing mechanism 35 , which can cause air bubbles in the detergent. This enables the ultrasonic washing to be performed effectively.

The partition plate 7 A also serves as a rib reinforcement of the composite tub 74 . This improves the maintenance efficiency and the durability of the composite trough 7 . In addition, the divider 7 A helps to minimize the amount of detergent required for ultrasonic washing.

As shown in Fig. 12, the composite trough 7 also has a bottom with a bend 74 at a position which is assigned to the cleaning agent jet from the jet nozzle section 32 . More specifically, the bottom of the composite trough 7 comprises a first floor at an angle of 2 to 3 ° (to the left of the bend 74 in FIG. 12) and a second floor at an angle of 15 ° (to the right of the bend 74 in FIG. 12) against the horizontal plane.

Furthermore, the ultrasonic oscillator 8 is arranged on the first floor of the composite trough 7 . This makes it possible to always collect the cleaning agent on the left side (the side of the outlet connection 10 ) and to increase the strength of the composite trough 7 itself. In addition, the ultrasonic waves are hardly transmitted beyond the bend 75 .

Furthermore, a float switch 76 is provided as a liquid level detection device at a position between the bend 75 and the partition plate 7 A.

The float switch 76 is turned on when the liquid level in the main section 7 a for ultrasonic washing due to the overflow of the cleaning agent in the air blowing section 7 b or the like falls below a predetermined level. The float switch 76 sends a signal indicating a lowered liquid level to the control device 103 (see FIG. 2) provided on the case main body 100 . The control device 103 commands after receiving the signal stopping the operation of the drive motor 27 A.

When the liquid level rises through the purifying agent from the jet washing mechanism 31 to the predetermined height, the float switch the off stops 76 also send the above-mentioned signal, the tax advantage direction 103, the resumption of the operation of the on drive motor commands 27 A.

Thus, the float switch 76 prevents insufficient washing due to an insufficient amount of detergent, whereby a high cleaning quality can be maintained.

In addition, the float switch 76 is attached 7 A by means of a bolt and a nut to a wall of Hauptab section 7 a between the bend 75 and the dash panel, as described above. At this point the float switch 76 , the ultrasonic vibration from the ultrasonic oscillator 8 can be sufficiently damped to prevent loosening of the nut and the resulting wobble. Thus, the above-mentioned arrangement improves the serviceability and reliability of the ultrasonic washing device 50 .

As shown in FIGS. 2, 3 and 5, the cylindrical drum 2 is in this case disposed over the composite tub 7 such that its first end 28 a first opening half has, in the detergent in the main section 7a of the composite-well 7 is immersed, with its second end 29 having a second opening which is arranged above the surface S of the cleaning agent for ultrasonic washing, which forms the immersion area S ₀ (see FIG. 3).

Accordingly, the objects given through the first opening in the cylindrical drum 2 are subjected to the ultrasonic washing in the detergent in the main portion 7 a while being pushed up by the helical plate member 5 when the cylindrical drum 2 rotates until the objects are over appear on the surface S of the detergent.

The cylindrical drum 2 is rotatably supported by the drum holding mechanism 3 , which contains three pairs of holding rollers, as in the first embodiment.

In addition, the cylindrical drum 2 has a screw benlinie plate element 5 with a configuration as described in the first embodiment.

As shown in FIGS. 1 to 3 and in FIGS. 12 to 14, the ultrasonic washing device further includes a cover 30 which is detachably held on the above-mentioned main body case.

The cover 30 has a first opening 30 A on the inlet side and a second opening 30 B on the outlet side, so that the objects to be cleaned are conveyed through the first opening 30 A into the cylindrical drum 3 and through the second opening 30 B from the cylindrical drum mel 2 are removed.

As shown in Fig. 3, the cover 30 also has maintenance windows 30 a and 30 b, which are arranged symmetrically with respect to the central axis of the cylindrical drum 2 and can be opened for maintenance work.

As shown in FIG. 13, a drive mechanism cover 24 is further provided in a box shape to surround the gear 26 of the drum drive mechanism 4 . The drive mechanism cover 24 and the cover 30 are formed as a one-piece block.

The drive mechanism cover 24 has a bottom section through which a connecting line 24 A leads to the air blowing section 7 b in order to recover the cleaning agent from inside the drive mechanism cover 24 .

Thus, the cleaning agent that has got into the drive mechanism cover 24 becomes contaminated with the lubricant of the gear 26 and with metal particles generated during driving. If such a detergent flows in the main section 7 a for ultrasonic washing, the cleaning quality is impaired. In order to prevent this, the cleaning agent entering the drive mechanism cover 24 is ejected through this connecting line 24 A into the air blowing section 7 B.

It is to be noted that a pump may be provided to the detergent stream from the Antriebsmechanis musabdeckung 24 to the air blow portion 7 b to press. The air blowing section may have a higher pressure than the drive mechanism cover 24 due to the air jet from the air blowing mechanism 35 . The pump can effectively push the detergent flow into the air blowing section 7 a. In addition, the connec tion line 24 A can also be connected directly to a cleaning agent reservoir 40 , which will be described in more detail later.

Furthermore, the conveyor belt 101 and the conveyor belt 102 are arranged in the same manner as in the first embodiment.

The ultrasonic washer with the above Configuration has the same effect as the Ultra sound washing device according to the first embodiment.

In addition, the float switch 76 ensures normal operation of the device, which improves the reliability of the washing quality.

Furthermore, the connecting line 24 A prevents contamination of the cleaning agent contained in the main section 7 A with oil particles and metal dust from the drive motor.

Version 4

An ultrasonic washing system according to a fourth embodiment of the present invention will now be described with reference to FIGS. 15 to 17. Similar components are denoted by similar reference numerals, the explanation of which is omitted.

As shown in FIGS. 15 to 17, the ultra comprises sound-washing system 90 according to the fourth embodiment, a first ultrasonic washing device 50 and a second ultrasonic washing apparatus 60, the same configura have tion as the ultrasonic washing apparatus 50 of the third embodiment.

The outlet side of the first ultrasonic washing device 50 is connected to the inlet side of the second ultrasonic washing device 60 . The first ultrasonic washing device 50 is used for extensive washing, while the second ultrasonic washing device 60 is used for rinsing.

In the first ultrasonic washing device 50 , the ultrasonic washing is performed with a detergent that circulates through the composite pan 7 (which speaks to the ultrasonic washing pan in the first embodiment), the detergent reservoir 40, and the jet washing mechanism 31 to hold the dirt that contains oil , from objects such as B. Wash off screws, nuts and washers.

In the second ultrasonic washing device 60 , the cleaning agent is removed from the objects by means of the jet washing mechanism 31 using a rinsing liquid (such as water or pure water) which circulates through the composite tub 7 , the cleaning agent reservoir 40 and the jet mechanism 31 .

The system offers the same effects obtained from the system of the second embodiment, while further improving the reliability of the washing quality by using the float switch 76 .

Version 5

In the following, an ultrasonic washing apparatus according to a fifth embodiment with reference to Fig. 18 and Figs. 2 to 14 will be described. Similar components are denoted by similar reference numerals, the explanation of which is omitted.

The ultrasonic washing device 250 according to the fifth embodiment comprises a rotary conveyor 1 for conveying objects to be washed, such as. B. screws, nuts and washers with a predetermined size, by a cleaning agent. The objects to be washed are placed in the rotary conveyor 1 on the inlet side (left side in FIG. 1) and conveyed to the outlet side (right side in FIG. 1) while being rotated irregularly. The inlet side is located in a lower position than the outlet side.

In addition, the ultrasonic washing device 250 comprises: an ultrasonic washing device 6 for washing the conveyed objects by means of ultrasound using a cleaning agent; a detergent discharge port 10 disposed on an upstream side (inlet side) of the conveying direction where the detergent can overflow; a jet washing mechanism 31 provided on the downstream side (outlet side) for directing a detergent in a jet onto the objects appearing above the detergent surface; and an air blowing mechanism 35 for directing an air jet at the objects that have been subjected to the jet washing.

The ultrasonic washing device 6 includes: a compo site tub 7 (which corresponds to the ultrasonic washing tub in the first embodiment), which consists of a main section 7 a for ultrasonic washing and a subsection 7 b, which serves as an air blowing tub; and an ultra sound oscillator 8 .

Here, the ultrasonic oscillator 8 is provided at the bottom of the main section 7 a. More specifically, the ultrasonic oscillator 8 is at a position not immediately below the central axis of the cylindrical drum 2 , but somewhat shifted in the direction of the downstream side of the direction of rotation of the cylindrical drum 2 is arranged (see Fig. 3). This shift is in a range of 10 to 45 ° degrees in the direction of rotation of the cylindrical drum 2 , preferably at 20 °.

Thus, the ultrasonic transducer 8 is arranged on the downstream side of the rotation of the cylindrical drum 2 , where most of the objects to be washed are concentrated, instead of immediately below the center of rotation. Thus, the ultrasonic washing of the objects can be carried out effectively.

The jet washing mechanism 31 is provided at the outlet opening of the cylindrical drum 2 (see Figs. 12 to 14). The objects which have been subjected to ultrasonic washing and which appear above the surface of the cleaning agent in the main section of the tub 7 are then subjected to washing with the cleaning agent in the jet, which is emitted by the jet washing mechanism 31 .

As shown in Fig. 12, the jet washing mechanism 31 comprises a nozzle section 32 with one or more nozzles 32 a and an internal line section 33 for holding the nozzle section 32 , which directs the cleaning agent under a predetermined pressure.

The internal line section 33 is connected to a line 31 A, which is arranged on the outlet side and extends along the central axis in the opposite direction to the conveying direction in the cylindrical drum 2 he. The nozzle section 32 , which is arranged at the tip of the internal line section 13 , is arranged almost in the middle of the length of the cylindrical drum 2 , so that the cleaning agent (in a less dirty state) is directed in a jet onto the objects which immediately before the cleaning agent (in a dirty state) emerged in the tub 7 . The nozzles (in the present embodiment 3 of these) are arranged in a predetermined interval in the longitudinal direction of the cylindrical drum 2 .

If, therefore, the objects on their surface are foreign matter lien, the foreign materials by the Effectively washed detergent in a jet.

The jet nozzles 32 have a jet direction which is inclined with respect to the vertical direction by a predetermined angle in a range from 15 ° to 45 °, preferably by 22.5 °, towards the downstream side of the rotation of the cylindrical drum 2 (see FIG. 13 )
Furthermore, the center of the jet nozzle section 32 is shifted from the central axis of the cylindrical drum 2 by a predetermined distance f, in this embodiment f is 40 mm, in the direction of the rising side of the cylindrical drum. This enables the beam to be directed effectively at the objects to be washed.

Thus, the objects inside, which appeared immediately before the surface of the cleaning agent in the main section 7 a, are effectively subjected to the jet wash.

In addition, the objects that have been exposed to the jet of the cleaning agent are then exposed to a clean and dry jet of air, which is emitted by the air blowing mechanism 35 , which is driven by a power source 38 a in FIG. 18.

The air blowing mechanism 35 includes: an air nozzle section 36 arranged at a predetermined position within the cylindrical drum 2 and having one or more air nozzles for blowing air in the direction of the objects to remove (recover) the solvent from the objects, that have been washed with the cleaning agent jet; and a line section 37 for supplying air under a predetermined pressure to the air nozzle section 36 . The air nozzles 36 a are arranged at a predetermined interval in the direction of the intersection of the central axis of the cylindrical drum 2 .

The air nozzle section 16 is arranged at the outlet end 29 of the cylindrical drum 2 and protrudes slightly from the end face of the cover 30 . The Luftdüsenab section 36 has air nozzles 36 a for discharging air which is removed from the air around the nozzles using a pump driven by the power source 38 a.

This air nozzle section 36 is preferably arranged remote from the liquid jet nozzle section 32 of the jet washing mechanism 31 . This is because when the air nozzle portion 36 is disposed near the liquid jet washing mechanism 31 , there is a risk that the cleaning agent discharged in the jet is disturbed and the air nozzle portion 32 sucks in the cleaning agent together with the air.

The air nozzle section 36 , which is arranged at the above-mentioned location almost outside the cylindrical drum 2 , causes no significant pressure fluctuation within the cylindrical drum 2 and no disturbance of the cleaning medium jet. It is therefore possible to obtain an excellent jet of cleaning agent and an excellent jet of air.

As shown in Fig. 13, the air blowing direction of the air nozzles 36 is not parallel to a vertical plane passing through the center line of the cylindrical drum 2 , but is inclined at an angle of β ₁ = 30 ° to the vertical plane around the air jet toward the downstream side of the rotation of the cylindrical drum 2 .

As shown in Fig. 12, the air blowing direction with respect to the end face of the cylindrical drum 2 is also at a predetermined angle of z. B. y = 20 ° to effectively direct the air jet onto the washed objects.

The above-mentioned arrangement of the air nozzle portion 36 enables the air jet to be directed effectively at the objects and the detergent to be effectively removed from the objects which have been subjected to the jet washing.

As shown in Fig. 14, the plurality of air nozzles are further arranged in a direction which is not parallel to the helical plate element 5 , but in this embodiment clockwise by an angle of γ ₂ = 20 ° with respect to a plane vertical to the central axis of the cylindrical drum 2 is twisted. This prevents the return of the air jet from the screw-shaped plate element 5 and enables the objects to be cleaned to be effectively blown with air.

That is, the arrangement of the air nozzles 36 A creates an air curtain to effectively blow the detergent away from the washed objects, and minimizes the amount of detergent that is lost and increases the amount recovered. In addition, the contaminated cleaning agent should somehow be removed from the objects to be cleaned.

The central position of the air nozzle portion 36 is also slightly shifted from a vertical plane containing the central axis of the cylindrical drum 2 toward the rising side of the cylindrical drum 2 during rotation. This also enables the objects such. B. completely catch screws and nuts.

As shown in FIG. 18 and in FIG. 2, the composite trough 7 is connected to a line which leads to a cleaning agent reservoir 40 . This cleaning agent reservoir is connected to: a first recovery line 41 for recovering the cleaning agent from the main portion of the ultrasonic washing tub 7 , if necessary, such as. B. for an exchange; a second recovery line 42 for recovering the detergent overflowed from the detergent discharge port 10 provided near the main portion (left in the figures) of the ultrasonic washing tub 2 ; and a third recovery line 43 for recovering the cleaning agent from the recovery section (right in the figures) of the ultrasonic washing tub 2 .

In addition, this detergent storage container 40 is connected to: a detergent supply line 44 ; an output line for outputting the cleaning agent from the detergent reservoir 40 when necessary, such as. B. for an exchange; and a line of the jet washing mechanism 31 .

Here, the jet washing mechanism 31 includes: the jet nozzle section 32 mentioned above; a cleaning agent supply line 31 A; a pressure pump 31 B, which is arranged in this supply line 31 A; a filter 31 C; and the valves 31 E, 31 F and 31 G.

Furthermore, the jet washing mechanism 31 has a bypass line 91 which is connected between the downstream side of the pressure pump 31 B and the detergent reservoir 40 , and a flow control valve 92 which is provided in the bypass line 91 .

The pressure pump 31 B is turned on and off by a control device (not shown) so that the cleaning agent that has been cleaned is continuously supplied to the jet washing mechanism 31 .

In the jet washing mechanism 31 , the pressure pump 31 B is driven to promote the detergent from the cleaning agent reservoir 40 under pressure to the jet nozzle section 32 . Here, the amount of the detergent discharged in the jet is controlled by opening the flow control valve 92 in the bypass line 91 to return a part of the detergent through the bypass line 91 . Thus, it is possible to regulate the amount of cleaning agent emitted in the jet in the main section (ultrasonic trough) 7 a in a region which does not interfere with the ultrasonic waves generated by the ultrasonic oscillator 8 .

If the jet nozzle portion 32 is blocked, the detergent can also return through the bypass line 91 in the detergent reservoir 40. This protects the pressure pump 31 , so that the maintenance friendliness of the entire device is improved.

It should be noted that the bypass line 91 may include an electromagnetic valve that is controlled by an external input signal supplied by a control device that may be provided to control the electromagnetic valve and to drive the ultrasonic oscillator 8 . This tax advantage direction, the electromagnetic valve and the ultrasonic transducer 8 can be controlled so that when the electromagnetic valve is opened, the ultrasonic oscillator 8 is turned on, and that when the electromagnetic valve is closed, the ultrasound oscillator is turned off. 8 This makes it possible to switch between the ultrasonic washing alone and the jet washing alone according to the state of the objects to be washed.

The ultrasonic washing process, the jet cleaning process and the air blowing process are carried out while the objects to be washed are conveyed from the inlet side in a lower position to the outlet side in a higher position of the cylindrical drum 2 .

When the air blowing is completed, the objects in the cylindrical drum 2 are from schraubenlini enförmigen plate member 5 through the second opening 30 30 b of the cover from the cylindrical drum 2 pushed out and conveyed from the discharge guide 100 B to the second conveyor 102, in order lead out.

The above-mentioned ultrasonic washing process, the jet line cleaning process and the air blowing process are without sub refraction carried out continuously. This improves the Washing efficiency clearly.

When the series of the ultrasonic washing step, the blasting step and the Luftblasschritts running, the cleaning agent in the main portion 7 is a composite of the tray 7 opposite the overflow in a direction perpendicular to the direction of conveyance of the ejected objects to be washed.

This allows the dirt and oil particles that are in the Detergents are present to ent continuously  far away, so that the dirt and Oil particles on the objects to be washed is prevented.

Version 6

An ultrasonic washing system according to a sixth embodiment of the present invention will now be described with reference to FIG. 19. Similar components are designated with similar reference numerals, the explanation of which is omitted.

As shown in FIG. 19, the ultrasonic washing system 290 according to the sixth embodiment includes a first ultrasonic washer 250 and a second ultrasonic washer 260 having the same configuration as the ultrasonic washer 250 of the third embodiment.

The outlet side of the first ultrasonic washer 250 is connected to the inlet side of the second ultrasonic washer 260 . The first ultrasonic washer 250 is used for extensive washing, while the second ultrasonic washer 260 is used for rinsing.

In the first ultrasonic washing device 250 , the ultrasonic washing is performed with a detergent that circulates through the composite pan 7 (which corresponds to the ultrasonic washer in the first embodiment), the detergent reservoir 40, and the jet washing mechanism 31 to remove the dirt containing oil , from objects such as B. the screws, nuts and washers, wash off.

In the second ultrasonic washer 260 , the detergent is removed from the objects by the jet washing mechanism 31 using a rinsing liquid (such as water or pure water) through the composite tub 7 , the detergent supply container 40, and the jet mechanism 31 circulates.

This system offers the same effects obtained from the fifth embodiment system, while further improving the washing quality reliability by arranging the air blowing section 36 as described in the fifth embodiment device.

As described above, the ultrasound includes washing device according to the present invention: a cylindrical drum with through holes on it entire circumferential surface and a helical plate element that is mounted on its inner wall is to wash objects from a first end that serves as the inlet side to a second end, which as Outlet side serves to promote; a drum drive me mechanism for rotating the cylindrical drum; one Rotary holding mechanism for holding the cylindrical drum such that they are about an axis at a certain angle can be rotated against the horizontal plane, so that the Inlet side is arranged in a lower position as the outlet side; an ultrasonic wash basin with a detergent is filled to a lower one Section of the cylindrical drum in which the to washing objects are submerged; an ultra sound oscillator, which featured in the ultrasonic washing tub is to see the objects in the cylindrical drum wash by ultrasound; and a jet wash mechanism with a jet nozzle section attached to one Opening of the second end of the cylindrical drum is provided to a given liquid in a Point the beam at the objects to be washed.  

Thus, the ultrasonic washing device performs according to the present invention the ultrasonic washing in Kombina tion with jet washing.

This significantly increases the washing performance it becomes possible with an aqueous detergent to achieve such high washing quality using an organic fluorine or chlorine agent or one Hydrocarbon agent is obtained which is a hazard for worker health and the environment put. The present invention enables Ver to avoid the use of such dangerous cleaning agents the.

In the ultrasonic washing device, the cylindrical Drum held so that an opening of the first side is partially immersed in the detergent that is in the ultrasonic washing tub is included, one Opening of the second end completely above the upper area of the contained in the ultrasonic washing tub Detergent is arranged. Thus, in the cylindrical drum given the objects continuously Ultrasonic washing and then jet washing exposed.

This configuration enables the consumption of Reini to minimize the overall size of the pre to reduce direction.

This configuration also enables the washed ones Objects inside the cylindrical drum effectively too roll, thereby eliminating streaks that pass through Ultrasonic washing can be generated if the wa objects in one place.  

The ultrasonic washer also includes one Detergent dispensing port, which is at the first end of the cylindrical drum is arranged so that the Reini agent can overflow in the ultrasonic washing tub.

Because oil and other contaminants are 03868 00070 552 001000280000000200012000285910375700040 0002019914746 00004 03749rch this overflow it can be removed from the output port possible to use the detergent during operation to keep it in a comparatively clean condition. This further increases the washing performance of the device.

The ultrasonic washer also includes air Blow pan, which is arranged in a position that the Air nozzle section is assigned and is nearby the ultrasonic wash basin arranged up to a position that the detergent Corresponds to the jet nozzle section.

This allows detergents to be washed off Recover objects. Thus the consumption increases Detergent further reduced.

The ultrasonic washer also includes a stream liquid level detection device between the Bending position and the separating element in the ultrasound wash basin is arranged.

This liquid level detection device si cher that a predetermined amount of detergent is maintained, which is the reliability of the device elevated.

The ultrasonic washing device further comprises: a Main cover, a drive mechanism cover and a cleaning agent recovery device for  Recovering from the drive mechanism cover detergent that gets into the air-blowing tub.

This also represents the recovery of the cleaning means safe, thereby minimizing the consumption of the Detergent is enabled.

The helical plate element attached to the Inner wall of the cylindrical drum is mounted several through holes over its entire surface che. Furthermore, the air blowing section of the air blowing mecha arranged in such a way that it is easily accessible from the second end of the cylindrical drum protrudes, but still located inside the main cover. That is, the Air jet is at a sufficient distance from the jet washroom arranged so that the jet washing is not by the pressure change caused by the air blowing mechanism mus is caused, is disturbed.

Finally, two of the above-mentioned ultrasounds washing devices form an ultrasonic washing system, so that the first ultrasonic washer to go far for washing and the second ultrasonic washing device used for rinsing. The second ultrasound wash Direction for flushing can also use an air blowing mechanism have, which has an air nozzle section, the the outlet side arranged in the cylindrical drum is to blow air onto the objects that are Jet washing mechanism have been rinsed.

The ultrasonic washing system can clear the washing effect improve without significantly increasing the operating time.

The invention can take other specific forms to be led without the spirit or the essential note paint to deviate from the same. The present execution  conditions are therefore in all respects as illustrative and not as restrictive, the scope of the Invention by the appended claims and not by the foregoing description is given, all Changes in meaning and equivalence fall within the scope of the claims, hereby included to be viewed as.

The entire disclosure of JP-A-10-103745 (filed on March 31, 1998), JP-A-10-114236 (filed on September 9, April 1998), JP-A-10-116245 (filed April 10 1998) and JP-A-10-116246 (filed April 10 1998) including the description, claims and Drawings and the summary are hereby complete Bibliography added.

Claims (24)

1. Ultrasonic washing device, characterized by
a rotary conveyor ( 1 ) for conveying objects to be washed by a cleaning agent, which have been inserted into the rotary conveyor ( 1 ) at its first end (inlet side) and to the second end (outlet side), which is arranged at a higher position than the first end, be promoted and rolled irregularly;
an ultrasonic washing device ( 6 ) for washing the objects conveyed by the rotary conveyor ( 1 ) by the cleaning agent by means of ultrasound; and
a jet washing mechanism ( 31 ) provided on the outlet side to jet a detergent against the objects raised above the surface of the detergent. 2. Ultrasonic washing device, characterized by
a cylindrical drum ( 2 ) which has through holes ( 2 a) on its entire circumferential surface and on the inner wall of which a helical plate element ( 5 ) is mounted in order to wash the objects from a first end, which serves as the inlet side, to a second Promote end that serves as outlet side;
a drum drive mechanism ( 4 ) for rotating the cylindrical drum ( 2 );
a rotation holding mechanism ( 3 ) for holding the cylindrical drum ( 2 ) so that it can rotate about an axis at a certain angle to the horizontal plane so that the inlet side is located in a lower position than the outlet side;
an ultrasonic washing tub ( 7 ) filled with a detergent to submerge a lower portion of the cylindrical drum ( 2 ) in which the objects to be wa are located;
an ultrasonic oscillator ( 8 ) provided in the ultrasonic washing tub ( 7 ) to ultrasonically wash the objects in the cylindrical drum ( 2 ); and
a jet washing mechanism ( 31 ) having a jet nozzle portion ( 32 ) disposed at an opening of the second end of the cylindrical drum ( 2 ) for directing a predetermined liquid in a jet at the objects to be washed. 3. Ultrasonic washing device according to claim 2, characterized in that the cylindrical drum ( 2 ) is held so that an opening of the first side is partially immersed in the cleaning agent contained in the ultrasonic washing tub ( 7 ) and an opening of the second end completely above the surface of the cleaning agent contained in the ultrasonic washing tub ( 7 ) is arranged. 4. ultrasonic washing apparatus according to one of claims to 2 or 3, characterized in that the helical plate element (5) has on its entire surface a predetermined projection (5 b). 5. Ultrasonic washing device according to claim 4, characterized in that the projection ( 5 b) is formed by a plurality of circular projections. 6. Ultrasonic washing device according to claim 4, characterized in that the projection ( 5 b) is formed by a continuous wire. 7. Ultrasonic washing device according to claim 4, characterized in that the projection ( 5 b) element by a continuous network such. B. a metal net is formed. 8. Ultrasonic washing device according to one of claims 2 to 7, characterized in that the cylindrical drum ( 2 ) is covered with a cover ( 30 ) which has an opening ( 30 ) on the inlet side and on the outlet side of the cylindrical drum ( 2 ) A, 30 B). 9. Ultrasonic washing device according to one of claims 2 to 8, characterized in that the device is provided with an air blowing mechanism ( 35 ) which has an air nozzle section ( 36 ) which is arranged at the opening of the outlet side to an air jet onto the objects to be judged, which have been subjected to the jet washing process. 10. Ultrasonic washing device according to claim 2, characterized in that the device has a cleaning agent output circuit ( 10 ) which is arranged at the first end of the cylindrical drum ( 2 ) so that the cleaning agent can overflow in the ultrasonic washing tub ( 7 ). 11. Ultrasonic washing device according to claim 9, characterized in that the device has an air blowing trough ( 7 b) which is arranged at a position which is assigned to the air nozzle section ( 36 ), and is arranged next to the ultrasonic washing trough ( 7 a), which extends to a position which is assigned to the detergent jet section ( 32 ). 12. Ultrasonic washing device according to claim 11, characterized in that the ultrasonic washing tub ( 7 a) and the air blowing tub ( 7 b) form a composite tub ( 7 ) which extends from the first end to the second end of the cylindrical drum ( 2 ) and has a separating element ( 7 A) to divide the composite tub ( 7 ) into a main section ( 7 a), which serves as an ultrasonic washing tub, and a subsection ( 7 b), which serves as an air blowing tub. 13. Ultrasonic washing device according to claim 12, characterized in that the ultrasonic washing tub ( 7 ) sits a bottom, which is bent in the middle of the conveying direction to define a first section and a second section at an angle of less than 180 °, wherein the ultrasonic oscillator ( 8 ) is arranged in the first section. 14. Ultrasonic washing device according to claim 13, characterized in that the device has a liquid level detection device ( 76 ) which is arranged between the bending position and the separating element ( 7 A) in the ultrasonic washing tub ( 7 ). 15. Ultrasonic washing device according to one of claims 11 to 14, characterized by
a main cover ( 30 ) for covering the cylindrical drum ( 2 ), except for the lower portion facing the ultrasonic washing tub ( 7 );
a drive mechanism cover ( 24 ) for covering the drum drive mechanism ( 4 ); and
a detergent recovery device for recovering the detergent, which has got into the drive mechanism cover ( 24 ) and in the air blowing tub ( 7 b). 16. Ultrasonic washing device according to one of claims 11 to 15, characterized in that the helical plate element ( 5 ) mounted on the inner wall of the cylindrical drum ( 2 ) has a plurality of through-holes on its entire surface ( 5 a). 17. Ultrasonic washing device according to claim 13, characterized in that the ultrasonic oscillator ( 8 ) is arranged at a position slightly from the position immediately below half the central axis of the rotation of the cylindrical drum ( 2 ) to the downstream side of the rotation of the cylindrical drum ( 2 ) is moved. 18. Ultrasonic washing device according to any one of the preceding claims, characterized in that the jet nozzle section ( 32 ) of the jet washing mechanism ( 31 ) is arranged such that it does not direct a liquid against a central position immediately below the central axis of rotation of the cylindrical drum ( 2 ), but against a position that is slightly shifted from the central position to the downstream side. 19. Ultrasonic washing device according to claim 18, characterized in that the jet nozzle section ( 32 ) is arranged in the vicinity of the central axis of the cylindrical drum ( 2 ) and has a beam direction which is not vertical, but at a certain angle to the vertical line towards the downstream side the rotation of the cylindrical drum ( 2 ). 20. Ultrasonic washing device according to any one of claims 9 to 19, characterized in that the air nozzle section ( 36 ) of the air-blowing mechanism ( 35 ) is arranged such that it protrudes somewhat from the second end of the cylindrical drum ( 2 ). 21. Ultrasonic washing device according to claim 20, characterized in that the main cover ( 30 ) at the first end and at the second end each has an opening ( 30 A, 30 B); and an air nozzle main cover is provided. 22. Ultrasonic washing device according to one of claims 20 or 21, characterized in that the air nozzle section ( 36 ) of the air-blowing mechanism ( 35 ) has a plurality of air nozzles ( 36 a) which are arranged in a matrix, the direction of which is not parallel to the inclined direction of the helical plate element ( 5 ) runs, but cuts them. 23. Ultrasonic washing device according to one of the preceding claims, characterized in that
the device includes a detergent reservoir ( 40 ); in which
the jet washing mechanism ( 31 ) contains:
a connecting line that connects the cleaning agent reservoir ( 40 ) and the jet nozzle section ( 32 );
a pump ( 31 B), which is provided in this connecting line to force the supply of the cleaning agent;
a bypass line ( 91 ) connecting the downstream side of the pump ( 31 B) and the detergent reservoir ( 40 ); and
a flow control valve ( 92 ) disposed in the bypass line ( 91 ). 24. Ultrasonic washing system, characterized by
a first ultrasonic washer ( 50 ) for extensive washing;
a second ultrasonic washer ( 60 ) for rinsing; and
a guide mechanism ( 100 ) provided between the first ultrasonic washer ( 50 ) and the second ultrasonic washer ( 60 ), both the first ultrasonic washer ( 50 ) and the second ultrasonic washer ( 60 ) including:
a rotary conveyor ( 1 ) for conveying objects to be washed by a cleaning agent, which have been inserted into the rotary conveyor ( 1 ) at its first end (inlet side) and to the second end (outlet side), which is arranged at a higher position as the first end, be promoted and rolled irregularly;
an ultrasonic washing device ( 6 ) for washing the objects conveyed by the rotary conveyor ( 1 ) through the cleaning agent by means of ultrasound; and
a jet washing mechanism ( 31 ) provided on the outlet side to jet a detergent against objects raised above the surface of the detergent; and
a detergent discharge port ( 10 ) disposed on the inlet side where the detergent can overflow; in which
the second ultrasonic washing device ( 60 ) for purging further includes an air blowing mechanism ( 35 ) having an air nozzle portion ( 36 ) provided on the outlet side of the cylindrical drum ( 2 ) to blow air against the objects being purged by the jet washing mechanism ( 31 ) have been.