EP0176501B1 - Apparatus for treatment of objects, preferably elongated objects of uniform cross-section, with a liquid - Google Patents
Apparatus for treatment of objects, preferably elongated objects of uniform cross-section, with a liquid Download PDFInfo
- Publication number
- EP0176501B1 EP0176501B1 EP83902299A EP83902299A EP0176501B1 EP 0176501 B1 EP0176501 B1 EP 0176501B1 EP 83902299 A EP83902299 A EP 83902299A EP 83902299 A EP83902299 A EP 83902299A EP 0176501 B1 EP0176501 B1 EP 0176501B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vessel
- liquid
- openings
- sump
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/11—Vats or other containers for liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/11—Vats or other containers for liquids or other fluent materials
- B05C11/115—Sealing means for work inlet or outlet
Definitions
- the present invention relates to an apparatus for treating objects, preferably elongated objects of uniform cross-section, with a liquid, comprising a vessel in which it is arranged for a liquid bath to be maintained and a storage sump or reservoir, whereby an opening is arranged in each of two opposite side-wall areas of the vessel, which openings are adjusted with respect to the cross-section of the objects and whereby the objects are arranged to be conveyed through the bath via the openings, and whereby the liquid bath is maintained partly by liquid conveyed from the storage sump and partly by means of a vacuum source communicating with the storage sump and the vessel for producing a negative pressure above the liquid bath.
- a suitable paint apparatus simplifies the surface treatment work at painting or impregnating boards, strips, metal or plastic profiles.
- a previously known type of suitable painting apparatus which is easy to use and gives good treatment results comprises a vessel in which it is arranged for a liquid bath to be maintained and which vessel has an opening in each of two opposite side-wall areas. The openings are adjusted relative to the cross-sections of the objects and the objects are conveyed through the bath via the openings.
- the paint bath in the vessel is maintained by means of a paint pump.
- the fan creates a partial vacuum in the vessel and this means that ambient air will be sucked in through the openings in the vessel and paint will be prevented from flowing out through any gaps between the object and the edge of the openings.
- the air sucked in through the mentioned gaps will at the same time remove excess of paint and bring this back into the vessel.
- the paint pump sucks the paint from a storage sump which is built-in with the apparatus.
- This sump has a fairly large volume since it is intended to work both as a storage for the paint and as a collecting means for the foam formed in the apparatus.
- An apparatus of this type is described in the British patent 2 064 996.
- This foam will also flow down into the storage sump, together with excess paint, via the overflow.
- the sump has been given such a volume that it normally will accept all the foam until it has settled without giving an overflow through the suction means.
- the device has further been provided with means for level regulation so that the storage sump will have an essentially constant liquid level, and thus also a constant volume, during the entire treatment procedure.
- the risk of over-foaming, resulting in blocking of the suction means is essentially eliminated. Since the liquid level in the sump is kept almost constant the evaporation or solvent release from the liquid, if the liquid contains a solvent, will be kept constant, and this means for example that the penetration capability and the drying properties of the liquid will vary to a very low extent, and so will the colour and covering degree when the liquid is a paint.
- the storage sump preferably contains only a small amount of liquid, which is advantageous also with respect to pigment sedimentation for paint.
- the sump can have a connection to a liquid vessel and the connection is then suitably provided with a valve, controlled by a level regulator which senses the liquid level in the sump to offer refilling of liquid from the reservoir, via the valve, to the sump when the liquid level in the sump falls below a certain value and to interrupt the refilling with liquid when the liquid level in the sump is above the set value.
- a level regulator which senses the liquid level in the sump to offer refilling of liquid from the reservoir, via the valve, to the sump when the liquid level in the sump falls below a certain value and to interrupt the refilling with liquid when the liquid level in the sump is above the set value.
- the mentioned sump can be replaceably mounted to the vessel.
- Means in the form of a lift jack or similar means can be arranged to lift the sump so that its brim is brought into or from tight contact with the lower part of the vessel.
- Sealing strips, for example of rubber, can be mounted on the lower part of the vessel to obtain a tight connection to the upper brim of the sump.
- the vessel is positioned in a housing which has an opening straight in front of the respective openings of the vessel, where the respective adjacent walls of the housing and the vessel, which are provided with openings, are positioned at a distance from each other, whereby ambient air is sucked into the housing via the gap between the objects and the openings of the housing, and the air pressure above the liquid bath in the vessel is arranged to be at least as high as the air pressure in the housing.
- the openings in the vessel and the housing are preferably arranged in replaceable pairs of aperture plates, which pairs are positioned between the housing and the vessel, whereby the aperture plates are in tight contact with the adjacent wall surfaces of the vessel and the housing around notches in these, which notches are screened by the places, the apertures of the plates forming the mentioned openings.
- a device according to the invention can simply be provided with a housing which reduces the tendency to foaming.
- the mentioned pair of aperture plates can be provided with means, eg rigging screw means or the like, which allow parallel displacement of the plates in the pair so that these can be fixed in, respectively removed from, contact with the vessel and the housing respectively.
- the mentioned pair of aperture plates can be removed upwards in the respective space between vessel and housing if this space opens upwards.
- the housing and the vessel preferably have a common upper wall which can rest loose on the walls of the vessel and the housing respectively and be secured in position during operation by influence of the negative pressure in the housing.
- a guide bar having a uniform cross-section along its length can be arranged to extend through the vessel and its openings, which bar has an axial recess with edges intended to be turned towards the central parts of the openings and be in tight contact with the objects, whereby the common outline of the bar and the object will substantially be in contact with the edges of the openings in the vessel.
- the openings in this should suitably be designed to essentially correspond to the cross-section of the objects, so that the airflow sucked in via the small gap between the edge of the opening in the housing and the outline of the objects will remove excess of paint from the objects so that the excess of paint can be released into the sump via the space between the walls of the vessel and the housing.
- the object of the above mentioned guide bar is to avoid liquid treatment of the objects in the axial area thereof which is limited by the edges of the bar.
- Figure 1 is a schematic sectional view of a device according to the invention.
- Figure 2 shows a section taken along the line II-II in Figure 1.
- Figure 3 shows a section taken along the line II-II in Figure 1 of an embodiment with a housing overthe vessel.
- FIG. 1 and 2 an apparatus for surface treatment of elongated objects, such as boards, with a liquid, eg paint, is shown.
- the apparatus comprises a storage sump 15 and the brim of the sump is kept in sealed contact with a sealing strip 16 on the underside of a table 5 supported from a floor by legs 6.
- the sump 15 is kept raised to the strip 16 by means of a lift jack 30, which is schematically shown.
- the sump 15 can preferably be rolled on wheels 31.
- On the table 5 a parallelepiped box is positioned and this box is formed from walls 45,46,47,48 which are tightly sealed to each other and to the table 5 and to a top-board 7, lying closely on the walls.
- At a distance from and inside the wall 48 there is an overflow 44. Together with the walls 45, 46, 47 and the bottom 55 the overflow forms a vessel intended to contain a liquid bath 20. Excess of liquid flows down between the walls 44 and 48 through an opening 33 in the table 5 and into the
- the walls 45 and 46 have fairly large notches 10, in which aperture plates 13 are positioned.
- the plates have openings 36 and are replaceably mounted in the notches. It is suitable to have aperture plates in a number of varying sizes intended to fit the cross-sections of the objects to be treated in the apparatus.
- the aperture plates are suitably provided with adjusting means, in a known manner, so that different cross-section configurations can be obtained with one plate.
- the edges of the openings 36 can be designed as elastic lips to allow passage of objects with deviations in the shape and optionally also in order to get a better conformity with the shape of the objects.
- the sump 15 has an exit for liquid with a quick-coupling 18 to which a pipe 35 is connected and the pipe has an outlet in the vessel through the wall 47.
- the conduit 35 contains a liquid pump 3.
- a liquid inlet is connected to the sump 15 at a level above the liquid outlet and is provided with a quick-coupling 17 so that a liquid reservoir can be connected to the liquid inlet.
- the liquid inlet contains a valve 19 controlled by a conventional level regulator, eg of the floating body type, as shown schematically in Figure 2 or 3.
- a suction conduit 40 extends through the table inside the strip 16 and contains a fan 4 which creates a vacuum in the sump 15.
- the sump 15 is in communication with the space above the liquid bath 20 via the gap 33 and the overflow 44.
- the apparatus shown in Figure 3 has a housing placed over the vessel.
- This housing is formed from the top-board 7, the walls 47 and 48 of the vessel and the walls 2, at a distance from and outside the walls 45 and 46.
- the walls 2, 45 and 46 have fairly large notches 9 and 10 respectively.
- pairs of aperture plates 8 are positioned.
- the pairs of aperture plates 8 each consists of two aperture plates 12 and 13 respectively, which by means of an expander device 60 can be moved away from each other to have their edge areas lying close to the edge areas of the notches 9 and 10.
- the aperture plates 12 and 13 have openings 37 and 36 which are coaxial.
- the pairs of aperture plates 8 are positioned to make their openings 36, 37; 36, 37 coaxial.
- the sump 15 is in communication with the gaps 50 via the openings 21, 22 and 33 in the table 5, and with the space above the liquid bath via the overflow 44.
- the bottom 55 of the vessel is connected to the walls 45 and 46 just below the lower edge of the notches 10 and has a cup-shaped recess between the walls, and the pipe 35 is connected to the lowest point of the recess which allows a complete drainage of the liquid bath 20.
- An elongated masking bar 14 having uniform cross-section along its length is positioned through the sump in the openings 36.
- the bar 14 has an axial cavity 41, facing upwards.
- the object 51 (see Figure 1) to be treated in the apparatus and the bar 14 have a combined outline which closely conforms to the edges of the openings 36 and optionally those of the openings 37.
- the edges of the bar 14 limiting the cavity 41 are in sealed contact with the object 51 so that the underside of this wall will not get in contact with the liquid bath 20 during the passage through the apparatus.
- an embodiment of the apparatus which comprises a masking bar 14 extending through the openings 36.
- the object of the bar 14 is to prevent treatment of an object along a pre-determined part of the circumference. It should, however, be evident that to obtain a liquid treatment of the entire circumference is possible to make the openings 36, 37 have an outline substantially conforming to the outline of the object 51.
- the apparatus advantageously also comprises a device 1 for feeding the objects, which device comprises two parallel cylinders of which at least one is operated and the relative distance between the cylinders is adjustable.
- aperture plates with openings 36 (and optionally also 37) conforming to the outline of the object to be treated or to the common outline of masking bar and object respectively, are mounted. If the apparatus is provided with a housing the pairs 8 are adjusted so that the openings will be coaxial. Then one or several objects, eg boards, are inserted to extend through the apparatus and so that they together with the guide bar will essentially screen the openings 36 (and optionally 37). The fan 4 is then started and the pump 3 activated so that a liquid bath is established. The objects are then conveyed through the apparatus, end to end. At shutting off the apparatus the operation of the pump 3 can be cut off to let liquid flow out via the paint conduit 35 back to the sump 15.
- the sump 15 can then be disconnected at the couplings 17 and 18 and a corresponding vessel, eg filled with cleaning agent, can be put in place in the apparatus and this can then again be used with inserted objects and the apparatus operated with solvent as a liquid to clean its interior.
- a corresponding vessel eg filled with cleaning agent
- objects can be treated with a great number of treating liquids, such as paints, stain, varnish, lacquer, binders, impregnating agents, surface protective agents, pickling agents degreasing agents, plastisols, organosols and similar agents.
- the apparatus is preferably used for surface treatment but can also be used for example for impregnation.
- the apparatus can be provided with heating or cooling means as desired with respect to the treating liquid.
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- Electroplating Methods And Accessories (AREA)
Abstract
Description
- The present invention relates to an apparatus for treating objects, preferably elongated objects of uniform cross-section, with a liquid, comprising a vessel in which it is arranged for a liquid bath to be maintained and a storage sump or reservoir, whereby an opening is arranged in each of two opposite side-wall areas of the vessel, which openings are adjusted with respect to the cross-section of the objects and whereby the objects are arranged to be conveyed through the bath via the openings, and whereby the liquid bath is maintained partly by liquid conveyed from the storage sump and partly by means of a vacuum source communicating with the storage sump and the vessel for producing a negative pressure above the liquid bath.
- A suitable paint apparatus simplifies the surface treatment work at painting or impregnating boards, strips, metal or plastic profiles. A previously known type of suitable painting apparatus which is easy to use and gives good treatment results comprises a vessel in which it is arranged for a liquid bath to be maintained and which vessel has an opening in each of two opposite side-wall areas. The openings are adjusted relative to the cross-sections of the objects and the objects are conveyed through the bath via the openings. The paint bath in the vessel is maintained by means of a paint pump. The fan creates a partial vacuum in the vessel and this means that ambient air will be sucked in through the openings in the vessel and paint will be prevented from flowing out through any gaps between the object and the edge of the openings. The air sucked in through the mentioned gaps will at the same time remove excess of paint and bring this back into the vessel. The paint pump sucks the paint from a storage sump which is built-in with the apparatus. This sump has a fairly large volume since it is intended to work both as a storage for the paint and as a collecting means for the foam formed in the apparatus. An apparatus of this type is described in the
British patent 2 064 996. - When devices of the type described above are used for painting a foam is formed from the paint, to a greater or smaller extent, since the air that is sucked in has to pass through the paint bath. This foam is unfavourable .and must be removed to a large space in the device in which the foam will be allowed to settle before the paint is brought back to the bath. If the paint level in this space, the storage sump, is too high the form will fill all of the space and this means that it can be sucked out from the device via a liquid trap. This results in deposits of substance both in liquid traps and conduits and in the exhaust fan.
- Another, and more serious, disadvantage in known devices is that the viscosity of paint varies irregularly during the treatment and this impairs the reproducability. When agents containing solvents are applied in these apparatuses at a high air speed and a high air consumption there will be an uncontrollable and high loss of solvent. When the level in the storage pump is decreasing the loss of solvent will rapidly increase the dry content of an agent and thereby its properties will be changed relative to penetration capability; drying properties, colour and layer thickness. If the level in the storage sump is high the solvent loss, and thus the dry content, is not influenced to the same degree, but, on the other hand, the device is filled to the brim with foam, leading to the disadvantages mentioned above.
- Known devices are also disadvantageous in that they are easily blocked, eg by wood chips and flakes at painting rough wood, and the cleaning is complicated and requires long shutdown times. At change of paint a thorough cleaning of the entire device is also required and this most often makes it necessary for the user to acquire different apparatuses for different paints.
- It is an object of the present invention to offer a surface treatment device of the mentioned kind in which the disadvantages in the known type of device are avoided. Further objects and advantages of the device of the present invention will be evident from the following.
- In an apparatus of the type indicated in the prior art portion of claim 1 (known from GB-A-2 064 996) this object in conformity with the present invention is reached in that means are provided to obtain an essentially constant liquid level in the storage sump. The liquid is suitably conveyed from the sump by means of a pump and it is advantageous to arrange an overflow in the vessel, making the pump give a liquid flow which is greater than the consumption of liquid at use, whereby excess of liquid flows back into the storage sump via the overflow. As a result of the negative pressure in the device liquid is prevented from emerging through the openings in the side-walls of the vessel. Consequently air will flow in through the openings, which are sealed mainly by the objects treated in the device, and the air will cause foaming of the treatment liquid. This foam will also flow down into the storage sump, together with excess paint, via the overflow. The sump has been given such a volume that it normally will accept all the foam until it has settled without giving an overflow through the suction means. According to the invention the device has further been provided with means for level regulation so that the storage sump will have an essentially constant liquid level, and thus also a constant volume, during the entire treatment procedure.
- By this, the risk of over-foaming, resulting in blocking of the suction means, is essentially eliminated. Since the liquid level in the sump is kept almost constant the evaporation or solvent release from the liquid, if the liquid contains a solvent, will be kept constant, and this means for example that the penetration capability and the drying properties of the liquid will vary to a very low extent, and so will the colour and covering degree when the liquid is a paint. The storage sump preferably contains only a small amount of liquid, which is advantageous also with respect to pigment sedimentation for paint.
- The sump can have a connection to a liquid vessel and the connection is then suitably provided with a valve, controlled by a level regulator which senses the liquid level in the sump to offer refilling of liquid from the reservoir, via the valve, to the sump when the liquid level in the sump falls below a certain value and to interrupt the refilling with liquid when the liquid level in the sump is above the set value.
- The mentioned sump can be replaceably mounted to the vessel. Means in the form of a lift jack or similar means can be arranged to lift the sump so that its brim is brought into or from tight contact with the lower part of the vessel. Sealing strips, for example of rubber, can be mounted on the lower part of the vessel to obtain a tight connection to the upper brim of the sump.
- It is hereby possible to have a separate sump of the mentioned kind containing a solvent, and when it is desired to clean the device, eg for changing paint, the paint sump can quite simply be lowered and rolled away and the solvent sump can be put in place, and the device can be operated with an object inserted through the openings of the vessel and the housing to cut off these. Should the treating liquid be contaminated a new sump can be put in place and the device can be used during the cleaning.
- According to another embodiment the vessel is positioned in a housing which has an opening straight in front of the respective openings of the vessel, where the respective adjacent walls of the housing and the vessel, which are provided with openings, are positioned at a distance from each other, whereby ambient air is sucked into the housing via the gap between the objects and the openings of the housing, and the air pressure above the liquid bath in the vessel is arranged to be at least as high as the air pressure in the housing.
- The openings in the vessel and the housing are preferably arranged in replaceable pairs of aperture plates, which pairs are positioned between the housing and the vessel, whereby the aperture plates are in tight contact with the adjacent wall surfaces of the vessel and the housing around notches in these, which notches are screened by the places, the apertures of the plates forming the mentioned openings.
- With this embodiment the atmosphere in the housing and above the bath will have essentially the same negative pressure. Hereby the air which is sucked in will not pass through the openings into the liquid bath and bubble through this which means that the foaming of the liquid bath will be eliminated to a considerable extent. This embodiment is very suitable for use when the treating agent has a great tendency to foaming.
- By providing, in a suitable manner, a table, on which the vessel can rest, with sealing means and fastening means for a housing of the described kind a device according to the invention can simply be provided with a housing which reduces the tendency to foaming.
- The mentioned pair of aperture plates can be provided with means, eg rigging screw means or the like, which allow parallel displacement of the plates in the pair so that these can be fixed in, respectively removed from, contact with the vessel and the housing respectively. The mentioned pair of aperture plates can be removed upwards in the respective space between vessel and housing if this space opens upwards. The housing and the vessel preferably have a common upper wall which can rest loose on the walls of the vessel and the housing respectively and be secured in position during operation by influence of the negative pressure in the housing.
- A guide bar having a uniform cross-section along its length can be arranged to extend through the vessel and its openings, which bar has an axial recess with edges intended to be turned towards the central parts of the openings and be in tight contact with the objects, whereby the common outline of the bar and the object will substantially be in contact with the edges of the openings in the vessel. The earlier mentioned fact that the openings of the vessel shall be adjusted to the cross-section of the objects is to be interpreted so, that if a guide bar of the mentioned kind is used, the common outline of the guide bar and the object shall correspond to the outline of the opening. If a housing is present, the openings in this should suitably be designed to essentially correspond to the cross-section of the objects, so that the airflow sucked in via the small gap between the edge of the opening in the housing and the outline of the objects will remove excess of paint from the objects so that the excess of paint can be released into the sump via the space between the walls of the vessel and the housing.
- The object of the above mentioned guide bar is to avoid liquid treatment of the objects in the axial area thereof which is limited by the edges of the bar.
- The invention is further defined in the appended claims.
- The invention will in the following be described in the form of an illustrating example with references to the accompanying drawings.
- Figure 1 is a schematic sectional view of a device according to the invention. Figure 2 shows a section taken along the line II-II in Figure 1. Figure 3 shows a section taken along the line II-II in Figure 1 of an embodiment with a housing overthe vessel.
- In Figure 1 and 2 an apparatus for surface treatment of elongated objects, such as boards, with a liquid, eg paint, is shown. The apparatus comprises a
storage sump 15 and the brim of the sump is kept in sealed contact with asealing strip 16 on the underside of a table 5 supported from a floor bylegs 6. Thesump 15 is kept raised to thestrip 16 by means of alift jack 30, which is schematically shown. Thesump 15 can preferably be rolled onwheels 31. On the table 5 a parallelepiped box is positioned and this box is formed fromwalls board 7, lying closely on the walls. At a distance from and inside thewall 48 there is anoverflow 44. Together with thewalls bottom 55 the overflow forms a vessel intended to contain aliquid bath 20. Excess of liquid flows down between thewalls sump 15. - The
walls large notches 10, in which aperture plates 13 are positioned. The plates haveopenings 36 and are replaceably mounted in the notches. It is suitable to have aperture plates in a number of varying sizes intended to fit the cross-sections of the objects to be treated in the apparatus. The aperture plates are suitably provided with adjusting means, in a known manner, so that different cross-section configurations can be obtained with one plate. The edges of theopenings 36 can be designed as elastic lips to allow passage of objects with deviations in the shape and optionally also in order to get a better conformity with the shape of the objects. - At a low level the
sump 15 has an exit for liquid with a quick-coupling 18 to which apipe 35 is connected and the pipe has an outlet in the vessel through thewall 47. Theconduit 35 contains a liquid pump 3. A liquid inlet is connected to thesump 15 at a level above the liquid outlet and is provided with a quick-coupling 17 so that a liquid reservoir can be connected to the liquid inlet. The liquid inlet contains avalve 19 controlled by a conventional level regulator, eg of the floating body type, as shown schematically in Figure 2 or 3. - A
suction conduit 40 extends through the table inside thestrip 16 and contains afan 4 which creates a vacuum in thesump 15. Thesump 15 is in communication with the space above theliquid bath 20 via the gap 33 and theoverflow 44. - The apparatus shown in Figure 3 has a housing placed over the vessel. This housing is formed from the top-
board 7, thewalls walls 2, at a distance from and outside thewalls - The
walls large notches 9 and 10 respectively. In therespective space 50 between thewalls notches 9 and 10. The aperture plates 12 and 13 haveopenings 37 and 36 which are coaxial. The pairs of aperture plates 8 are positioned to make theiropenings 36, 37; 36, 37 coaxial. - According to this embodiment the
sump 15 is in communication with thegaps 50 via theopenings overflow 44. - The bottom 55 of the vessel is connected to the
walls notches 10 and has a cup-shaped recess between the walls, and thepipe 35 is connected to the lowest point of the recess which allows a complete drainage of theliquid bath 20. - An elongated masking
bar 14 having uniform cross-section along its length is positioned through the sump in theopenings 36. Thebar 14 has an axial cavity 41, facing upwards. The object 51 (see Figure 1) to be treated in the apparatus and thebar 14 have a combined outline which closely conforms to the edges of theopenings 36 and optionally those of the openings 37. The edges of thebar 14 limiting the cavity 41 are in sealed contact with the object 51 so that the underside of this wall will not get in contact with theliquid bath 20 during the passage through the apparatus. - In Figure 3 the
bar 14 has been positioned in such a manner that liquid leakage will be drained via the edges of the bar down through thegaps 50 and theopenings - Above, an embodiment of the apparatus has been described which comprises a masking
bar 14 extending through theopenings 36. The object of thebar 14 is to prevent treatment of an object along a pre-determined part of the circumference. It should, however, be evident that to obtain a liquid treatment of the entire circumference is possible to make theopenings 36, 37 have an outline substantially conforming to the outline of the object 51. - The apparatus advantageously also comprises a device 1 for feeding the objects, which device comprises two parallel cylinders of which at least one is operated and the relative distance between the cylinders is adjustable.
- At operation of the apparatus aperture plates with openings 36 (and optionally also 37) conforming to the outline of the object to be treated or to the common outline of masking bar and object respectively, are mounted. If the apparatus is provided with a housing the pairs 8 are adjusted so that the openings will be coaxial. Then one or several objects, eg boards, are inserted to extend through the apparatus and so that they together with the guide bar will essentially screen the openings 36 (and optionally 37). The
fan 4 is then started and the pump 3 activated so that a liquid bath is established. The objects are then conveyed through the apparatus, end to end. At shutting off the apparatus the operation of the pump 3 can be cut off to let liquid flow out via thepaint conduit 35 back to thesump 15. Thesump 15 can then be disconnected at thecouplings - In the apparatus according to the invention objects can be treated with a great number of treating liquids, such as paints, stain, varnish, lacquer, binders, impregnating agents, surface protective agents, pickling agents degreasing agents, plastisols, organosols and similar agents. The apparatus is preferably used for surface treatment but can also be used for example for impregnation. The apparatus can be provided with heating or cooling means as desired with respect to the treating liquid.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83902299T ATE31256T1 (en) | 1983-06-01 | 1983-06-01 | DEVICE FOR TREATMENT OF OBJECTS, PREFERABLY LONG OBJECTS OF UNIFORM CROSS-SECTION, WITH A LIQUID. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SE1983/000218 WO1984004705A1 (en) | 1983-06-01 | 1983-06-01 | Apparatus for treatment of objects, preferably elongated objects of uniform cross-section, with a liquid |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0176501A1 EP0176501A1 (en) | 1986-04-09 |
EP0176501B1 true EP0176501B1 (en) | 1987-12-09 |
Family
ID=20349627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83902299A Expired EP0176501B1 (en) | 1983-06-01 | 1983-06-01 | Apparatus for treatment of objects, preferably elongated objects of uniform cross-section, with a liquid |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0176501B1 (en) |
AT (1) | ATE31256T1 (en) |
DE (1) | DE3374845D1 (en) |
WO (1) | WO1984004705A1 (en) |
Cited By (1)
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CN109894317A (en) * | 2019-04-26 | 2019-06-18 | 北京红螺食品有限公司 | A kind of cryogenic vacuum immersion system |
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US5597412A (en) * | 1995-02-15 | 1997-01-28 | Fujitsu Limited | Apparatus for forcing plating solution into via openings |
FR2735044B1 (en) * | 1995-06-07 | 1997-07-25 | Air Liquide | APPARATUS FOR TREATING SOLID OBJECTS BY DIPPING IN A LIQUID BATH |
GB9620760D0 (en) * | 1996-10-04 | 1996-11-20 | Acco Rexel Group Services Plc | Improvements in or relating to an apparatus for and a method of coating elongate objects |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US3084662A (en) * | 1960-08-10 | 1963-04-09 | Afton C Badger | Apparatus for the continuous application of coating to strip material |
DE2201740C3 (en) * | 1972-01-14 | 1979-07-05 | Boise Cascade Corp., Boise, Id. (V.St.A.) | Device for introducing impregnating agent into a horizontally guided corrugated cardboard web |
SE412878B (en) * | 1978-06-22 | 1980-03-24 | Westcoast Alaforsverken Ab | MULTI-STEP PROCEDURE AND COMBINED DEVICE FOR IMPREGNATION OF TREMATERIAL WITH ELECTROMAGNETIC HEATING OF THE TREMATERIAL FORE AND AFTER IMPREGNATION |
US4333417A (en) * | 1979-12-13 | 1982-06-08 | Camp Neal H | Coating system |
DE3001726C2 (en) * | 1980-01-18 | 1984-08-09 | Gebr. Schmid GmbH & Co, 7290 Freudenstadt | Device for treating a printed circuit board |
-
1983
- 1983-06-01 DE DE8383902299T patent/DE3374845D1/en not_active Expired
- 1983-06-01 WO PCT/SE1983/000218 patent/WO1984004705A1/en active IP Right Grant
- 1983-06-01 EP EP83902299A patent/EP0176501B1/en not_active Expired
- 1983-06-01 AT AT83902299T patent/ATE31256T1/en not_active IP Right Cessation
Non-Patent Citations (2)
Title |
---|
Derwent's abstract No. 38847 K/16 * |
Derwent's abstract No. 47434 D/26 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109894317A (en) * | 2019-04-26 | 2019-06-18 | 北京红螺食品有限公司 | A kind of cryogenic vacuum immersion system |
Also Published As
Publication number | Publication date |
---|---|
WO1984004705A1 (en) | 1984-12-06 |
DE3374845D1 (en) | 1988-01-21 |
EP0176501A1 (en) | 1986-04-09 |
ATE31256T1 (en) | 1987-12-15 |
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