BE1027347A1 - Device for painting a housing of a compressor or vacuum pump element and method used - Google Patents

Abstract

Device for painting a housing (2) of a compressor or vacuum pump, said housing (2) comprising a first and a second semi-cylindrical structure, the device (1) comprising: - a dispersing head (3), comprising a rotating part (4) and a stationary part (5); - a paint reservoir (6), which is connected to the stationary part (5); - a support structure (8), comprising fastening means; wherein the device (1) comprises a controller (7) for controlling a rotational speed of the rotating part (4), the controller (7) being provided with means for controlling a rotational direction of the rotating part (4) by means of clockwise to paint the first semi-cylindrical structure and to change the direction of rotation in a counterclockwise direction to paint the second semi-cylindrical structure.

Description

Device for painting a housing of a compressor for a vacuum pump element and method used. This invention relates to an apparatus for painting a housing of a compressor or vacuum pump element comprising a first semi-cylindrical structure adjacent to a second semi-cylindrical structure, the apparatus comprising: 9 10: a dispersing head for just dispersing of: paint droplets, where the dispersing head has a rotating part | having a cup-shaped construction and comprising a stationary part; = a paint reservoir, which is connected to the stationary part via a pipe; a support structure, comprising fastening means adapted to receive the housing of the compressor or vacuum pump element in a fixed manner.

Known devices used for painting various surfaces include a dispersing head for dispersing the paint, the dispersing head having a rotating bell-shaped structure for directing the paint away from the dispersing head and onto the surface to be painted. is rotated around its axis at a certain speed, as found for example in US 2010/193, .602. The apparatus and method described therein are designed for the feet of surfaces such as motor vehicle bodies. However, such a device is not suitable for painting the inner surface of the housing of a scrape, a root or a tooth compressor element or of a vacuum filling element, 3 such housings comprising two interconnected lobes or 9 semi-cylindrical structures, 3 Tests demonstrated. that, as a result of the curves 9 of the inner surface of the housings of such compressor or vacuum pump elements, when using such a device for painting such a surface, a thicker layer of paint 9 becomes on certain segments thereof. formed.

In fact, due to the trajectory of the veridroplets and due to the diffraction plane found on the hocote of the inner surface of the housing of such compressor or vacuum components, a thicker layer of paint will form on the inner surface immediately after or immediately following. on the adjacent segment of the two lobes or immediately following the plane of diffraction that such lobes create. Such a situation is highly undesirable, as it is desirable that the thickness of the paint coating covering the inner surface of the housing be uniform and a certain predetermined determined thickness. Typically, the space between the rotors and the housing is very small and does not allow for such a thicker area. A more undesirable effect is that such defects in the thickness of the paint layer can lead to damage in the paint covering the rotors, which are in the housing, or even to the rotors during operation, 9 In fact, because of the potential direct contact | 5 during operation between the rotors and this surface of the housing 9 immediately after the adjacent segment of the two lobes or immediately following the bending plane 9 created by the lobes, the paint covering the rotors as well as the | paint covering the inner surface of the housing or even the rim of the rotors will be damaged.

This translates into 9 a higher risk of leaks along these surfaces and 9 an even greater risk of rust forming on these copier surfaces.

Moreover, because such a thicker paint layer is formed, errors can occur in mounting the rotors in the housing due to the resulting displacement in an axial direction.

Such errors are highly undesirable as they affect the entire operation of the compressor or vacuum pump, potentially creating greater forces on the lacers carrying the rotors, which can lead to a reduction in the efficiency and life of the compressor or vacuum pump components. ,

In addition, excessive painting of the inner surface of the compressor housing means: or vacuum pump element significant material losses there are significantly Longer drying times, which translates into additional production costs and production line delays,

In view of the above drawbacks, it is an object of the present invention to provide an apparatus for painting a housing of a compressor in a vacuum pump, whereby a uniform coating on the inner surface of the housing is obtained. Another object of the present invention is the | Eliminating the risk of over-painting the 9 pin surface and eliminating the risk of mounting errors when mounting rotors in the painted | housing. 9 10 9 Another object of the present invention is the | to provide a method of painting a compressor housing in a vacuum pump that is efficient in time and cost,

The present invention solves at least one of the coving and / or other problems by providing an apparatus for painting a compressor housing in a vacuum package comprising a first semi-cylindrical structure adjacent to a second semi-cylindrical structure, wherein the device comprises: a dispersing head for dispersing varf droplets, the dispersing head comprising a rotating part with a cup-shaped construction and a static part: - a paint reservoir, which is connected to the static part via a pipe: = a support structure, comprising fastening means adapted to receive the housing of the compressor or vacuum pump element in a fixed manner;

the apparatus further comprising a controller for controlling a rotational speed of the rotating member, the controller including means for controlling a clockwise direction of rotation of the rotating member. 5 for painting the first semi-cylindrical 9 housing construction and for changing the | direction of rotation in a counterclockwise direction to paint the second semi-cylindrical structure of the housing. | Because the regulator is provided with means for controlling: the direction of rotation of the rotating part with the kick blade 9 for painting the first semi-cylindrical construction of the housing and for changing the direction of rotation in a direction against In the bell for painting the second semi-cylindrical structure of the housing, a uniform coating of paint is obtained over the inner surface of the housing of the compressor or vacuum pump element.

Accordingly, the phenomenon of over-painting does not occur at the height of the diffraction plane where the two cylindrical structures adjoin each other.

Because the controller is provided with such means, the direction given to the paint drop positions exiting the bell-shaped structure and reaching the inner surface of the housing of the compressor or vacuum pump element will actually be different when painting the first semi-cylindrical structure than when painting the first semi-cylindrical structure. painting the second half-cylindrical structure, As a result, the paint droplets exiting the bell-shaped structure when painting the first half-cylindrical structure will not reach the surface of the second half-cylindrical structure, and paint droplets exiting the bell-shaped structure will: while painting the second half-cylindrical | 3 construction not the surface of the earste | To achieve semi-cylindrical construction, 9 As a result, not only can the painting process 9 be controlled very easily, but also the thickness of the paint layer over the entire inner surface of the housing | of the compressor or vacuum pump element can be controlled very easily and precisely, 9 In addition, the total production time of the housing of The compressor or vacuum pump element is shorter, while a significant reduction in material losses and much more reliable results are obtained, Preferably, the compressor is or vacuum punch a screw, root or dental compressor or “vacuum punch.

However, it should not be excluded that the housing of a vane compressor or vacuum pump can also be painted with the device according to the present invention. In one embodiment of the present invention, the device further comprises a mobile arm on which the dispersing head is mounted.

As a result, the painting process of the housing of the compressor ”or vacuum pump element is fully automated,

as a result of which the production time is shorter and the accuracy of the obtained result is increased. {In another embodiment of the present | In the invention, the controller is adapted to move the mobile arm along a vertical axis and a horizontal axis, whereby | the mobility and flexibility of the arm is improved and | the entire inner surface of the housing of the 9 compressor or vacuum pump element can be | 10 are painted. 9 in a further embodiment of the present invention In the invention, the controller is adapted to automatically change the direction of rotation of the rotating part.

By incorporating such a function, the whole process of painting the compressor housing or vacuum pump element can be automated, eliminating potential human error and guaranteeing the achievement of optimal result, In yet another embodiment according to the The present invention further comprises a delivery system comprising control means adapted to control the volume flow rate of the paint reaching the dispersing head. By regulating the volume flow of the paint reaching the dispersing head, the device controls with a very high precision the thickness of the resulting paint layer covering the inner surface of the housing,

By volume flow is meant the volume of liquid that flows per unit time given by a cross-sectional area. | The present invention further relates to a method for | painting a compressor housing in a vacuum pump comprising a first semicylindrical structure 9 adjacent to a second semicylindrical structure, 9 wherein the method comprises the steps of: | 9 securing the housing of the compressor or vacuum pump element to a supporting structure of a painting device; 9 - connecting a paint reservoir to a stationary part of a dispersing head of the painting device via a line; the method further comprising the steps of:

- connecting the dispersing head providing Le with a rotating part and the stationary part with a controller, the controller controlling a rotational speed of the rotating part;

- controlling a rotation direction of the rotating part clockwise and painting the first semi-cylindrical structure of the compressor or vacuum element housing and changing the rotation direction in a counterclockwise direction and painting the second semi-cylindrical construction of the housing of the compressor or vacuum pump element.

It is to be understood that the advantages noted with regard to the apparatus for painting a compressor housing in a vacuum pump are of any kind. applications to the method, {5 For the purpose of better illustrating the features of the invention, 9 some preferred configurations according to the | present invention described by way of example, without | some limitation, with reference to the accompanying drawings, in which: Figure 1 and Figure 2 schematically illustrate an apparatus according to an embodiment of the present invention; and Figure 3 is a schematic illustration of two rotated plan views of a housing of a compressor in a vacuum pump that can be painted with a device according to the present invention. Figure L is an illustration of a device 1 for painting a housing Z of a compressor or vacuum pump.

It should be understood that in the housing 2 of the compressor or vacuum pump element the compression OT vacuum process takes place: by means of a rotor and typically by means of two rotors, The compressor or vacuum pump type is of the type selected from a group comprising : a roots, a vane, a toothed rotor compressor or vacuum pump etc,

It should be understood that the housing 2 of the compressor or vacuum packing element has an inner surface and an outer surface, the inner surface being at | mounting of such rotors in the housing 2 of the | 5 Compressor or vacuum pump element facing the rotors | and the outer surface faces the outer environment of the compression or vacuum chamber, 9 The device 1 comprises a dispersing head 3 which collects paint droplets | 12 generates and disperses, wherein the dispersing head 3 comprises a 9 rotating part 4 of bell-shaped construction and a 9 stationary part 5. The dispersing head 3 is connected to a paint reservoir 6 via a conduit that allows paint flow from the paint reservoir to the dispersing head 3, as illustrated in Figure 2. Preferably, but not limited to, a paint flow is in the opposite direction, from the dispergserkog 3 to the verireservoir 6, not allowed, for example by mounting cen backs: agkisp or something similar in the pipeline.

The dispersing head 3 preferably comprises a bell-shaped structure connected to the rotating part 4 via a rotating shaft, as well as a stationary part 5 arranged in the center of the bell-shaped structure.

The stationary part 5 comprises a small opening or mouthpiece through which the vert can flow and reach the bell-shaped construction,

By nozzle is meant a small opening, with a diameter selected between, for example, 20.3 millimeters and 1.5 millimeters. The diameter is typically selected in accordance with the properties of the paint and the | 3 desired thickness of the paint layer to be obtained after the | The surface is painted. For painting the inner surface of the housing 92 of the compressor or vacuum pump element, the nozzle 9 is selected, typically having a diameter of: 0.5: 0.8; 1 or 1.2 millimeters. However, other values for the diameter of the nozzle should not be excluded and the values included above should be taken as examples only.

The device L further comprises a regulator 7 for regulating the rotational speed of the rotating part 4. Since the regulator 7 regulates the rotational speed of the rotating part 4, the diameter of the drops and therefore the thickness of the resulting paint layer is controlled. It should be understood that the controller 7 is part of the device 1 and is capable of receiving data, performing analyzes and calculations and sending data to different parts of the device 1. It should not be excluded that the controller 7 can also remotely send data to an external controller or computer, which is not part of the device 1.

It should be clear that data refers to measurements made on the device or on the housing of the compressor or vacuum pump element, or | analysis or calculations performed by the controller | 5 7, as will be explained in more detail, 9 Accordingly, the controller 7 includes and 9 communication module (not shown) for receiving and receiving. sending data, a processing module (not shown) 9 10 for performing analysis and calculations and a 9 memory module for storing data such as receiving | cevens, the analysis and calculations performed, etc. In order to obtain good control over the spray mechanism, the device 1 further comprises a support structure 8 comprising fastening means (not shown).

Such a support structure 8 receives the housing 2 of the compressor or vacuum pump element and optionally allows the housing 2 of the compressor or vacuum pump element to be attached to it. By using such an arrangement, the device 1 can control the flow of paint and the orientation of the Dispensing head 3 according to the shape and orientation of the housing 2 of the compressor or vacuum pump element. The positioning of the housing 2 of the compressor or vacuum pump element is done in a predetermined manner or the support structure 8 further comprises sensors that transmit information regarding the send the position and orientation of the housing 2 of the compressor ”or vacuum pump element to the controller 7,

The controller 7 is provided with means for controlling the direction of rotation of the rotating part 4 clockwise or counterclockwise, depending on which of the two | semi-cylindrical structures of the housing 2 of the compressor or vacuum pump element are painted, 9 Preferably, but not limited to, the 9 means for controlling the direction of rotation generate an electrical signal on a first communication line 9 between the controller 7 and the dispersing barrel 3, wherein the electrical 9 signal is the direction of rotation of the rotating part d | changes.

It should not be ruled out that the first communication line 9 allows a two-way communication between the birdwatcher 7 and the dispersing head 3.

The serste communication line 9 is a wired or a wireless communication line. In the case of a wired communication line, an electrical conductor is provided, the electrical conductor being provided with two adapters at each end and permitting transmission of an electrical signal through the line, In the case of a wireless communication line, the controller 7 and the dispersing head 3 has a transmitter and / or a receiver enabling the communication, or the two parts can both include a Lransceiver, allowing two-way communication between the two parts, Accordingly, the dispersing head 3 can transmit one or more of, for example, the current operating characteristics,

all possible added values, such as: the pressure value and / or the temperature and / or the viscosity of the paint entering the dispersing head 3, the pressure and / or the temperature; and / or the viscosity of the paint containing the stationary part 5 | 5, the volume flow rate of the paint flowing through the 9 dispersing head 3, possibly the position of the 9 dispersing head 3 relative to the housing 2 of the 9 ”compressor or vacuum pump element and / or other parameters with | with respect to the device 1 or the housing 2 of the | 19 compressor or vacuum pump element. [The current operating characteristics can mean one or more of the following 9: the current state of the dispersing head 3 such as, for example, whether the dispersing head 3 is in use or not, or whether it is in standby, when in use: the direction of rotation of the rotating part 4, the rotation speed, etc.

The controller 7 is capable of controlling the orientation of the dispersing head 3 relative to the housing 2 of the compressor or vacuum pump element.

Preferably, but not limited to this, the controller 7 positions the dispersing head 3 with its central axis X-X! parallel to the longitudinal axis AA 'of the housing 2 of the compressor or vacuum pump element, as shown in Figure 1. In another embodiment of the present invention and not limited thereto, the dispersing head 3 is in the center in each of the two semi-cylindrical structures positioned and moved vertically and parallel to the axis X-X ', However, it should not be excluded that the

: dispersing head 3 also closer to a side wall of sen | respective semi-cylindrical construction or further away | of the side wall, | In an embodiment of the present invention and not limited thereto, the dispersing core 3 may contain one or more | include sensors that determine the exact positioning and orientation # of the dispersing head 3 relative to the housing 2 of the compressor or vacuum pump element, such as: the 9 10 distance from the support structure 8, the positioning relative to the center of the housing 2 of the # compressor or vacuum pump element and possibly the distance from each wall of the housing 2 of the compressor or vacuum pump element.

The dispersing head 3 transmits such data to the controller 7. It should not be excluded that an operator controls the position of the dispersing head 3 based on his visual interpretation of the painting process,

It is further possible that such an operator can manually adjust the rotational speed of the rotating part 4. In yet another embodiment according to the present invention, the discager 3 can detect one or more sensors with which the controller 7 can provide a three-dimensional representation of the walls of the housing. 2 of the compressor or vacuum pump element, for a more accurate and automated painting process,

Since the dispersing head 3 comprises a rotating part 4 comprising a xioc-shaped structure, the paint flowing from the stationary part 5 reaches the clip-like structure and slides on the bell-like structures to its edge. Furthermore, the paint droplets leave that edge in a tangential direction, below. influence of centrifugal force, where the | most paint droplets surface the housing | 5 reach. 9 Accordingly, the direction of rotation of the bell-shaped 9 structure will affect the trajectory of the paint drips, 9 10 If we now look at the housing 2 of the compressor or vacuum pump element and see how such 9 housing 2 of a compressor or vacuum pump co the 9 support structure 8 is one way to get the | the housing with the casing inlet farther away from the surface of the support structure 8, so that in relation to a position of the gas inlet, the gas outlet is positioned closest to the copplane of the support structure 3,

The compressor or vacuum pump element housing 2 comprises two interconnected semi-cylindrical structures: a left half-cylinder Za which is connected to a right half-cylinder 2b, as shown in Figure 3. By interconnecting the two haï-cylindrical structures, a bending plane 10 over the entire height of the compressor or vacuum pump element housing 2 created, due to the shape of such semi-cylindrical structures,

In existing devices used for painting such compressor or vacuum pump housings, one direction of rotation for the rotating part 4 is used from the beginning to the end of the painting process. This is, for example, a clockwise rotation direction, one; movement thus starting from the left to the right and continuously rotating around its central axis K-X ', is an active painting process. 9 If we were to Loepassen such a process to 9 paint both the right half-cylinder Zb and the left | half-cylinder Za, the phenomenon of excessive painting | occur at one of the two half cylinders on the | 10 surface immediately following the diffraction plane becomes | found, as shown in figure Za with a thick line cp 9 the left half-cylinder 2e. 9 For example, as a clockwise direction of rotation 9 15 is chosen to paint a compressor housing 2 of a 9 in a vacuum pump, positioned so with the gas inlet farther away from the surface of the support structure 8 that with respect to a position from the gas inlet, the gas outlet closest to the surface of the support structure 8 is positioned and we look from above at the compressor or vacuum pump element housing 2, the over-painting phenomenon would occur at the level of the left half-cylinder 2a, on the surface immediately following the diffraction plane, as illustrated in Figure Za.

Whereas, if an anti-clockwise direction is chosen, the over-painting phenomenon would occur at the level of the right half cylinder 2b, on the surface immediately following the tubing plane. In one embodiment of the present invention, but not limited to, the support structure B can take the shape

: having a table or simply interconnected metal slaves, which provide access to the compressor or vacuum pump element housing 2 from all directions, or the compressor or vacuum pump element housing 2 can be carried by a set of chains. | in case the support structure 8 is in the form of a 9 table or interconnected metal bars, the 9 support structure is & fixed to be on the floor | 12 placed, in the room where the painting process takes place. 9 in another embodiment of the present invention The invention, but not limited to, the device L further comprises a vacuum source (not shown), positioned above or below the level of the housing and preferably centered on the housing, for removing excess forcing nozzles.

Preferably, but not limited to, the dispersing head 3 includes an air receiving port 11 through which an air stream can reach the paint flow and assists in achieving the desired density and diameter of the paint droplets exiting the bell-shaped structure, Preferably, but not limited to , the air flow is compressed air generated by a como sensor or vacuum pump 12 or a compressed air source.

This compressor or vacuum pump 12 or compressed air source is connected to the receiving port 11 through an air line or tube 13.

In an embodiment of the present invention, the device 1 further comprises a mobile arm 14 on which the dispersing head 3 is mounted. Preferably, but not limited to, the recelaar 7 is adapted to move the mobile arm 14 along a vertical axis and a horizontal axis. By incorporating the mobile arm 14, the leveling of the dispersing head 3 is moved along the horizontal axis. and vertical axis | Accordingly, the painting process can be fully automated and the entire inner surface of the housing 2 of the compressor or vacuum pump element 9 can be painted.

The mobile arm 14 may be a robotic arm that includes at least one hinge that permits movement along the horizontal and vertical axes and optionally allows photational movement about its axis. In another embodiment of the present invention, it is best result adjust the controller 7 to automatically change the direction of rotation of the rotating part 4 based on the position of the dispersing head 3 relative to the left half-cylindrical and right half-cylindrical construction, 2a and 2b, Furthermore, the device 1 can be used for better paint volume control and thus to obtain a more precise thickness and uniform paint layer further comprise a feed system comprising control means adapted to regulate the volume flow rate of the paint reaching the dispersing head 3. The control means are selected from a group comprising: a 9 5 comp, sen compressor, a flow meter, etc. 9 It should not be ruled out that the regulator 7 does not operate the | volume flow of paint can be regulated by means of a 9 algorithm. 9 10 Such an algorithm coordinates the volume flow of the | far “with the rotational speed of the rotating part 4 and with the thickness of the desired paint layer to be obtained on the inner surface of the housing 2 of the compressor or vacuum pump element.

The controller 7 may further correlate these parameters with one or more of the following: the pressure value in the portion of the pipes or conduits of the device 1, the diameters of such conduits or hoses through which paint flows, the properties of the paint, such as viscosity and temperature, the diameter of the nozzle portion of the stationary portion, the shape and / or diameter of the rotating portion.

In another embodiment of the present invention, the volume flow can be manually controlled by an operator, in a preferred embodiment of the present 3D invention, but not limited to, the device L further comprises a paint pump 16 mounted on the conduit connecting the paint reservoir 6. and the dispersing head 3 connects.

Preferably, but not limited to, to increase the volume of vert that is removed from the paint reservoir 69, the paint pump 16 may be a membrane gum. | 5 For precise control of the volume flow of the remote! | reaching the dispersing head 3, the apparatus 1 may further comprise a second paint pump 17 which is downstream of the paint gum 16 and upstream of the dispersing cup 3 | cevositioned. | Preferably, but not limited thereto, a gear pump is selected for the second 9 paint pump 17.

By incorporating such a gear pump, the paint flow can be controlled even more precisely, regardless of the viscosity and temperature of the paint. Accordingly, the controller 7 may include means for regulating the pressure of the paint pump 16 and furthermore can control the rotational speed of the second. paint eraser 17.

In such a situation, the paint pump 16 and / or the second paint pump 17 may include communication lines to the controller 7, not shown. In another embodiment of the present invention, the controller 7 can correlate the various parameters such as the volume flow rate, the pressure value at the level of the paint reservoir 6 or at the level of the pressure vessel with the thickness of the resulting layer of paint and with one or more of the following : the pressure value at the diaphragm conp, the rotational speed of the bell-shaped structure, the speed of the gear pump, the distance between the bell-shaped structure and the inner surface of the housing 2 of the compressor or vacuum pump element, the diameter of the nozzle, the diameter of the tube or line between the paint reservoir 6 or pressure vessel and the dispersing head 3, the temperature and viscosity of the paint. | IN yet another embodiment of the present invention invention and not limited thereto, the device can be further developed include means for covering at least one part | of the inner surface of the housing 2 of the compressor or vacuum pump element. Such means are, for example, in the form of a removable accessory or accessory. mask that is automatically or manually manipulated and 9 provides additional protection to eliminate the risk 9 of parts of the inner surface 9 being overpainted.

In another embodiment according to the present invention, the device 1 may comprise a pressure vessel, not shown, in case the device 1 comprises one or more pressure sensors at the height of the dispersing head 3. On the basis of the pressure measurements, the controller 7 can determine the pressure value of the further affect the paint at the level of the pressure vessel, The adjustment is possible by means of, for example, an intravenous hose that includes a pressure regulator fitted in the pressure vessel, above the level of the paint, By adjusting the air flow through that hose, the pressure of the paint in the pressure vessel can be adjusted. In another embodiment of the present invention, such an air hose and pressure regulator may be provided in trap 6. Using such a setup allows more precise control of the paint

flow and thus more precise control of the thickness of the resulting layer on the inner surface of the housing 2 of the | compressor or vacuum pump element. 9 In another embodiment according to the present invention, the device 1 for determining the pressure | of the paint through the tube system of the device 1, and 9 comprise more pressure sensors, which are positioned on | 1D one or more locations, selected from a group comprising: 9 between the paint reservoir 6 and the paint pump 16, between the 9 paint pump 16 and the second paint pump 17, between the Second # paint pump 17 and the dispersing head 3, at the paint gap at the level of the dispersing head 3, on the paint channel before the Is paint reaches the rectifying part 4: at the level of the dispersing head 3, etc.

The method of painting a housing 2 of a compressor OL vacuum pump comprising a first semi-cylindrical structure adjacent to a second semi-cylindrical structure is very simple according to the present invention and as follows.

The housing 2 of the compressor or vacuum pump element is 24 attached to the support structure 8 and the device 1 according to the present invention is used for painting the inner surface of the housing 2 of the compressor or vacuum pump element.

Accordingly, the controller 7 controls the direction of rotation of the rotating part 4 clockwise while painting a first semi-cylindrical structure of the housing 2 of the compressor or vacuum pump element and

; the direction of rotation changes in an anti-clockwise direction while painting a second semi-cylindrical structure of the housing 2 of the compressor or vacuum pump element. Preferably, but not limited to, the controller 37 automatically controls the direction of rotation of the rotating part 4. | In one embodiment of the present invention, when the controller 7 detects another # position of the dispersing head 3 in the horizontal direction 9, the controller 7 generates 9 indicating that the dispersing head 3 has finished painting the first semi-cylindrical structure. , 9 an electrical signal to the dispersing core 3, causing the 9 15 direction of rotation of the bell-shaped structure | changed. In another embodiment of the present invention, when the controller 7 detects that the dispersing head has finished painting the first semi-cylindrical structure, it generates an electrical signal to stop the flow of current until the dispersing head 3 is in position for painting. of the second semi-cylindrical structure, In addition, the controller 7 generates an electrical signal to change the direction of rotation of the bell-shaped structure, and the controller 7, when the dispersing head 3 is in position, generates an electrical signal to start the paint flow and the paint on the second to disperse the semi-cylindrical construction.

In another embodiment of the present invention, an operator can visually detect when the dispenser 3 has finished painting the first semi-cylindrical structure and can press an actuator that sends a signal to the controller 7 for just changing the direction of rotation of the bell-shaped {construction. [5 In another embodiment of the present | In the invention, the dispersing head 3 is mounted on a mobile arm 14. For further automation of the painting process, 9 Furthermore, the control 7 preferably, but not limited to, controls the mobile arm 14 about a vertical axis, A-A ', 9 and a horizontal axis, B-B '. In another embodiment of the present invention, the controller 7 regulates the volume flow rate of the paint reaching the dispersion head 3.

Preferably, but not limited to, the controller 7 positions the dispersing head 3 down, facing the draining structure 8 or in other words facing the ground. In another embodiment of the present invention and not limited thereto, the controller 7 moves the dispersing head 3 along the longitudinal axis of the housing 2 of the compressor or vacuum pump element, A-A ', from one end to the other. Another embodiment according to the present invention, the device 1 mixes the paint, to maintain a homogeneous paint mixture and to avoid deposits on the bottom of the paint reservoir 6. To achieve this, the device 1 can use a pneumatic stirrer 19 Preferably, but not limited to, the mixing is 5 of the paint run continuously, | The pneumatic rcerder 19 can be controlled by the | controller 7, nij can be remotely controlled via an external one; computer, or it can be manually operated by a sen: 10 operator. | To prevent deposits on the pipe system of the device 1 when the painting process is not active, the controller 7 can further activate the valve 15, allowing the paint to flow continuously through the device 1.

In this perspective, the paint flow is directed such that it bypasses the dispersing head 3 and flows through a pipe system DLijfk and reaches the paint reservoir 6.

The controller 7 can control the volume flow of the paint by means of the speed of the paint pump 16 and by the speed of the second paint-in pump 17.

If the volume flow of the paint is sufficient by simply controlling the paint pump 16, the controller 7 can stop the second valve 17 and the paint flow is passed through a bypass line 18 to reach the dispersing head 3.

39 To clean the piping system of the device L, the controller operates the outlet valve 20 and the paint flow is directed outside the device 1 to flow into a bucket c1 reservoir 21,

; When the painting process is not active or during the cleaning process, the second paint pump 17 can be stopped and the paint flow can be directed through the omicon pipeline 18. Preferably, such a second paint pump 17 can be periodically | be switched on to prevent deposits at the level of the second pump 17. | 10 9 By "periodic" is meant after a chosen time interval, 9 such as, but not limited to: every 5 minutes, # every 10 minutes, every 15 minutes, every 20 minutes, every half an hour or some other time interval,

Depending on the design of the device 1, the device i may comprise some or even all of the technical features presented here, in any combination and without departing from the scope of the invention.

By 'technical characteristics' is meant at least: the support structure 8 which includes fastening means, the control of the paint flow, the control of the orientation of the dispersing head 3, the inclusion of sensors for determining the position and orientation of the housing 2 of the compressor or vacuum pump element, the accommodation of the first communication line 9, either wired or wireless, the adjustment of the orientation of the discager head 3 with respect to the housing 2 of the compressor or vacuum pump element, the accommodation of one or more sensors for the determining the position and orientation of the dispersing head 3, manual or automatic control of the position of the dispersing head 3 and / or the rotation speed of the rotating part 4 and / or the volume flow rate of the paint, the inclusion of a vacuum source, the air reception port 11, the | compressor or vacuum temp 12, the air line or tube 13, the mcbiele arm id, automatically changing the | rotation direction of the rotating part 4, the supply system 9 which includes regulating means, the paint pump 16, the second paint comp 9 17, communication lines to the paint pump 16 and / or to the second paint pump 17, the controller 7 can adjust the pressure of the paint in # 10 regulate the paint reservoir 6 or pressure vessel, it automatically or | manually changing the rotation direction of the 9 xinok-shaped structure, the controller 7 can correate the thickness of the resulting paint layer with different # parameters, the pneumatic stirrer 19, the 9 15 intake of the valve 15, the intake of the bypass line 18, the intake of the bucket or reservoir 21, the periodic collection

and turn off the second paint pump 17, the intake of the exhaust valve 290,

The present invention is by no means limited to the embodiments described by way of example and shown in the drawings, but such a device 1 can be realized in all kinds of variants, without departing from the scope of the invention.

Claims (1)

| BE2019 / 5613 Conclusions, | 1, Device for painting housing {2} of | 5 a compressor or vacuum pump element, which housing (23 9 comprises a first halo-cylindrical construction adjacent to a second semi-cylindrical construction, the apparatus {1} comprising: ig - a dispersing container {3} for dispersing paint drips , wherein the dispersing head (33 comprises a rotating part {4} of bell-shaped construction and a static part {5}; - no paint reservoir (5), which is connected to the stationary part {5} by a pipe: - a supporting structure (8), including fastening means adapted to receive the housing (2) of the compressor or vacuum pump element: in a fixed manner; characterized in that the device (1) further comprises a controller (7) for controlling of a rotational speed of the rotating part (4), the controller {7) being provided with means for controlling a rotational direction of the rotating part {4} clockwise for painting the first semi-cylindrical structure v on the housing (23 of the compressor or vacuum pump element and for changing the direction of rotation in an anti-clockwise direction to paint the second semi-cylindrical structure of the housing {2} of the compressor or vacuum pump element. The device according to claim 1, characterized in that the device (1) further comprises a mobile arm (14) which is | configured to receive the | Dispersing head (3}. 9 3. Apparatus according to claim 2, characterized in that the controller {7} is adapted to move the mobile arm (14) along a vertical axis and a horizontal axis. device according to any one of the preceding claims, 9 characterized in that the controller {7} is adapted to automatically change the # direction of rotation of the rotating part (4). Device according to one of the preceding claims, characterized in that the device {1} further comprises a supply system comprising control means adapted to regulate the volume flow rate of the paint reaching the dispersing coc {3}. Device according to claim 5, characterized in that the regulating means are selected from a group consisting of: a pump, a compressor, a flow meter, Apparatus according to any one of the preceding claims, characterized in that the dispersing head {33 includes an air receiving hole {11}. Device according to any one of the preceding claims, characterized in that the device ({1} comprises a paint pump (16), preferably a diaphragm pump, which is configured to be mounted on the pipe. 3, device according to the preceding claim, characterized in that the device {1} comprises a second veripump {17}, | preferably a gear pump configured to: be positioned downstream of the veripump {16} and upstream of the dispersion head {3). 10. Device according to the preceding claim, characterized in that the device (1) has a diverter line (18) oval, 9 1G configured to bypass the second paint pump (17), 9 L1. Device according to claim 8 and / or 9, characterized in that the regulator (7) comprises means for regulating the pressure value at the level of the paint pump (16) and / or a rotational speed of the second pump {17}. Device according to one of the preceding claims, characterized in that the device (1} comprises a pressure vessel and one or more pressure sensors at the height of the dispersing head 13). Device according to any one of the preceding claims, characterized in that the paint reservoir (6) comprises a pneumatic stirrer (19), device according to any one of the preceding claims, characterized in that the device (1) has a tilt (15). cmvat, which is configured to be activated by a controller {7} and to run paint continuously through the device {1}. A method of painting a housing (2) of a COMDreSSOr or vacuum pump comprising a first semi-cylindrical structure adjacent to a second semi-cylindrical structure, the method comprising the steps of: - securing the housing (2 ) of the compressor 9 or vacuum pump element to a support structure (8) of a 9 painting device {1}; 9 connecting a paint reservoir (6) to a stationary part (5) of a dispersing cage (3) of the 9 painting device {1} via a conduit; 9 characterized in that the method further comprises the stamping pin # of: 45 - connecting the dispersing head (3) provided with a rotating part {4} and the stationary part (5) with a regulator (7), the controller (7) controls a rotational speed of the rotating part (4); and - controlling a direction of rotation of the rotating part {4} with the kick knife and painting the first semi-cylindrical structure of the housing (2) of the compressor or vacuum pump element and changing the direction of rotation in a direction. and painting the second semi-cylindrical structure of the compressor or vacuum pump element well housing {2}. 16. Method according to claim 15, further comprising the step of automatically controlling the direction of rotation of the rotating part {4}, 17. Method according to claim 15 or 16, further comprising the step of mounting the dispersing head {3} on a mobile arm (143, A method according to claim 17, characterized in that the controller (7) controls the mobile arm (14) on a vertical axis and a horizontal axis. 29. A method according to any of claims 15 to 18, characterized in that the controller (7) regulates the volume flow rate; of the paint reaching the dispersing head {3}, | Method according to any one of claims 15 to 15, characterized in that the controller (7) positions the dispersing head (3) facing the support structure (8). 21. Method according to any one of claims 16 to 20, characterized in that the controller (7) moves the dispersing head (3) along the length axis of the housing (2) of the compressor or vacuum pump element from one end to the other.