EP3050642A1 - Device for cleaning rollers - Google Patents
Device for cleaning rollers Download PDFInfo
- Publication number
- EP3050642A1 EP3050642A1 EP14845714.6A EP14845714A EP3050642A1 EP 3050642 A1 EP3050642 A1 EP 3050642A1 EP 14845714 A EP14845714 A EP 14845714A EP 3050642 A1 EP3050642 A1 EP 3050642A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- cleaning
- drive element
- motor
- felt disc
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 41
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 239000003292 glue Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 18
- 230000001681 protective effect Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2220/00—Type of materials or objects being removed
- B08B2220/01—Adhesive materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
- B21D39/023—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors using rollers
Definitions
- the present invention refers to a device for cleaning rollers of the kind used in machinery for clamping metal plates.
- Clamping or hemming is known as the mechanical process that joins two plates together by folding the edge of one of them over the other.
- clamping can be seen in any door, bonnet, boot, etc., of any car.
- Clamping is not a structural way of joining parts together, and there are additional methods used in order to prevent the inner panel from sliding in relation to the outer panel.
- One of these methods is combining clamping with the application of adhesives.
- the clamping process by means of applying adhesives is performed in basically 3 phases.
- a bead of glue is applied on the outer panel about to be clamped.
- the outer and inner panels are assembled together.
- the plates are clamped together.
- the glue spreads along the gaps between the two panels, and can sometimes spread to the outside of the panels.
- roller clamping There are different techniques to perform the clamping procedure. One of them is roller clamping.
- a robot rolls a metal wheel, the roller, over the outer edge of the part that will be folded over the other part, so that as the roller advances it folds the plate.
- the glue is compressed and spread all along the length and width of the two plates being joined together.
- the glue can sometimes spread to the outside of the panels. This would not be a problem so long as the glue remains jutting out of the union of the two plates.
- one of the usual problems is that the glue can spread out in a large proportion, making contact with the wearing face of the roller.
- a rolling tool that is dirty with clamping glue is not acceptable, since as it advances, it will stain the folded flange and will later cause problems to the paint, since the remains of glue will cause a deficient adherence.
- Every system for cleaning rollers incorporates some kind of external equipment that can be attached to the roller and that is in charge of making it roll.
- the first method has the problem that the strip used starts accumulating resin, so that in a few cycles it is no longer useful and must be replaced.
- this process needs to be automatized, so that there must be a facility to feed the strip that is in charge of feeding the cleaning area and a station to cut the strip, so that as the cleaning of the strip is finished, it moves forward and the dirty stretch of strip can be cut and removed.
- the facility is complex and therefore financially unappealing.
- the second method requires a system to only detach the roller quickly, which can involve delicate mechanisms that afterwards need to bear stresses.
- the present invention addresses the problems described above and which have not been solved in the present state of the art, simplifying the current process and making the cleaning of rollers a very affordable process.
- the present invention represents a device for cleaning rollers that comprises a drive motor, a drive element joined to said drive motor, which incorporates at least one lug on its base, a felt disc joined to a cleaning motor and a solvent ejector connected to a solvent tank, which is in charge of applying solvent to the felt disc and of keeping it moistened during the working process.
- the drive motor refers to the motor in charge of moving the drive element
- the cleaning motor refers to the motor in charge of moving the felt disc in charge of cleaning the roller, both motors being of the kind known in the state of the art.
- the roller comprises at least one opening on the base, which is aligned with the corresponding fixing lugs.
- the lugs are located on the drive element, which are cylindrical and capable of axial movement along the openings located on the drive element.
- each lug is connected to the drive element by means of a spring, while in the other end the lug juts out of the drive element, sticking out.
- the lugs have axial movement. They retreat until they are housed entirely inside the drive element when they are compressed, and they expand until they stick out of the drive element up to a certain length when they stop exerting pressure on the springs.
- a tool assembly for a robot which contains the roller about to be cleaned, places the base of the roller so that the openings located on the base of the roller are aligned with the corresponding lugs of the drive element.
- the cleaning motor rotates in the same direction as the drive motor. In this way, in the area where the felt disc makes contact with the roller, both speeds add up causing the felt disc to clean the roller by means of friction.
- the base of the roller incorporates a series of openings placed in correspondence with the lugs of the drive element, and with slightly bigger dimensions in order to easily house them.
- both components are positioned in such a way that their rotation axes coincide.
- the lugs will not coincide with the openings of the roller, so that the base of the roller will act on the lugs and compress them, pressing on the springs with the other end of the lugs and housing them inside the drive element.
- the drive element By actuating the drive motor, the drive element starts rotating until it reaches a position in which the fixing lugs meet the openings on the base of the roller, fitting inside them, expanding by means of the springs and transmitting the movement of the drive motor to the roller.
- the device comprises a positioning plate that has two parallel slots and that is rigidly mounted to the cleaning motor. It also incorporates a fixing mount that comprises through holes in correspondence with the parallel slots of the positioning plate. In this way, a series of screws go through the fixing mount via the through holes and the positioning plate via the parallel slots, allowing the positioning plate to move linearly along the length of the parallel slots.
- the final position of the positioning plate is fixed by means of nuts coupled to the screws.
- the felt disc is positioned in correspondence with the roller meant to be cleaned.
- the fixing mount can be fixed in different working positions depending on whether the felt disc needs to clean conical or cylindrical rollers.
- the ejector applies a solvent on the felt disc to keep it continuously moistened.
- the present invention refers to a device for cleaning rollers (1) used in the process of clamping plates in a fast, simple and affordable way.
- Figure 1 a shows a drive motor (7) together with a multiple drive element (3) where the roller (1) is fixed, and a series of circular fixing lugs (4).
- the multiple drive element (3) is also shown in an enlarged exploded view so that the inner components are visible, such as the circular fixing lugs (4) and some springs (5).
- Figure 1b shows, in a second embodiment, a drive motor (7) together with a single drive element (3') where the roller (1) is fixed, and a polygonal fixing lug (4').
- the single drive element (3') is also shown in an enlarged sectional view so that the inner components are visible, such as the polygonal fixing lug (4) and a spring (5).
- circular (4) and polygonal (4') lugs are really cylindrical lugs with a circular or polygonal transverse section, respectively.
- Figure 3 shows the tool assembly (2) with the roller (1) incorporated.
- FIG. 2 shows the cleaning equipment comprising a cleaning motor (7') fixed to a positioning plate (12) with two parallel slots (13), a fixing mount (11), a felt disc (6) installed on the cleaning motor (7') and a solvent ejector (8) connected to a solvent tank (10).
- a series of screws are inserted in the fixing mount (11), which go through the parallel slots (13) and secure the positioning plate (12) to the fixing mount (11) in the desired position by means of screws.
- This position may be modified along the length of the parallel slots (13) depending on the size of the roller (1).
- the position of the cleaning equipment can be modified such that it can be used to clean rollers (1) shaped like cones or cylinders.
- Figure 4 shows all the components of the device.
- Figures 5a and 5b include the protective housing (14) against splatters, which surrounds the entire device, in the open and closed positions respectively.
- the roller (1) without being disassembled from the roller tool assembly for a robot (2) that incorporates it, is fixed to the drive element (3, 3') of the drive motor (7).
- the drive element (3, 3') comprises at least a lug (4, 4') joined to a spring (5) on one of its ends that allows it to have axial movement, with the other end sticking out of the drive element (3, 3').
- the roller (1) incorporates on its base a series of openings where said lugs are inserted (4, 4').
- openings preferably have, in the first embodiment, an elongated circular shape so that it is easier and faster to adjust the circular lugs (4) therein, which, as their name implies, have a geometry with circular transverse section.
- the polygonal lug (4') has a geometry whose transverse section is such that when its fits into the corresponding complementary opening located on the roller (1), it does not slide and it can transmit the rotation of the drive motor (7) to the roller (1).
- the polygonal lug can feature a traverse section of the lug in any geometry that is not circular, although a section that comprises sides will be chosen in order to provide a better grip, preferably a regular polygonal shape in order to make it easier to fit in the corresponding opening.
- the opening is located on the centre of the roller and has a geometry with the same transverse section as the polygonal lug (4'), with slightly larger dimensions in order to make adjusting easier.
- the transverse section has a hexagonal shape.
- the roller (1) By means of the tool assembly (2) containing the roller (1), the roller (1) is positioned so that the base is secured to the drive element (3, 3').
- the lugs (4, 4') of the drive element (3, 3') will not normally coincide with the openings of the roller (1) such that, when the roller (1) is fastened, the lugs (4, 4') will retract into the drive element (3, 3'), making the springs (5) compress.
- the drive motor (7) is actuated, making the drive element (3, 3') rotate.
- the lugs (4, 4') are retracted into the drive element (3, 3') and pressing against the base of the roller (1) due to the force of the springs (5).
- the process of cleaning the roller (1) consists of putting the edge of the roller (1) in contact with the edge of the felt disc (6) such that, by means of friction, the dirt of the roller (1) is eliminated.
- the width of the felt disc (6) will always be greater or equal to that of the roller (1), ensuring that the entire width of the roller (1) makes contact with the felt disc (6).
- the second embodiment in which a simple cylindrical drive element (3') of a very small radius to length ratio is used, allows the cleaning equipment to move such that the felt disc (6) can attack the roller (1) not only on its front side, but also on the rims. This is also achieved by securing the roller (1) to the head of the simple drive element (3'), which only takes up the centre of the roller (1), and not of its entire base, as is the case in the first embodiment.
- the cleaning motor (7') and the drive motor (7) of the roller (1) rotate in the same direction.
- the relative speed in the area of contact between the roller (1) and the felt disc (6) is the sum of the two speeds of the wheels at the points of contact, which allows the felt disc (6) to clean by means of friction at a higher efficacy.
- the felt disc (6) In addition to the felt disc (6) there is an ejector (8) coupled to a solvent tank (10). In this way, the felt disc (6) is continuously moistened with solvent supplied by the ejector (8), which is in charge of applying the solvent on the felt disc (6). In this way, thanks to the solvent and the friction, it is easy to remove the adhesive adhered to the surface of the roller (1).
- a conical roller (1) is the roller chosen in the device represented in the drawings.
- the cleaning equipment would be moved so that the axes of the drive motor (7) and the cleaning motor (7') were parallel to each other, which would thus allow the cleaning of the cylindrical roller (1).
- the cleaning motor (7') actuating the felt disc (6) is rigidly joined to a positioning plate (12) comprising a pair of parallel slots (13).
- the positioning plate (12) is attached to a fixing mount (11) that is rigidly joined to the workbench.
- This fixing mount (11) comprises drill-holes in correspondence with the parallel slots (13).
- a series of screws go through the fixing mount (11) and the parallel slots (13), enabling the positioning plate (12) to move along the parallel slots (13) until the desired position is found.
- the final position is fixed by applying nuts to the screws and thus fixing the positioning plate (12) to the fixing mount (11).
- the cleaning device comprises a protective housing (14) that encloses the assembly in order to avoid splashes, since a large part of the adhesive and the solvent will be ejected outwards by action of the centrifugal force and, due to the rotating speed of the motors (7, 7'), it may be dangerous.
- the roller (1) may be cleaned without having to disassemble it from the tool assembly for a robot (2) in which it is installed.
- the device also has reduced dimensions, which makes it easy to install it close to the clamping facility.
Landscapes
- Cleaning In General (AREA)
Abstract
Description
- The present invention refers to a device for cleaning rollers of the kind used in machinery for clamping metal plates.
- It is of particular use in the automotive industry and the industry of assembling metal plates.
- Clamping or hemming is known as the mechanical process that joins two plates together by folding the edge of one of them over the other.
- It is the process normally used for the outer parts of vehicles, which are comprised basically of a visible outer panel and an inner panel that is usually hidden from sight.
- Examples of clamping can be seen in any door, bonnet, boot, etc., of any car.
- Clamping is not a structural way of joining parts together, and there are additional methods used in order to prevent the inner panel from sliding in relation to the outer panel. One of these methods is combining clamping with the application of adhesives.
- The clamping process by means of applying adhesives is performed in basically 3 phases. In the first phase, a bead of glue is applied on the outer panel about to be clamped. Afterwards, the outer and inner panels are assembled together. In the final phase, the plates are clamped together.
- During the clamping process, when the plates are joined together, the glue spreads along the gaps between the two panels, and can sometimes spread to the outside of the panels.
- There are different techniques to perform the clamping procedure. One of them is roller clamping.
- Using this technology, a robot rolls a metal wheel, the roller, over the outer edge of the part that will be folded over the other part, so that as the roller advances it folds the plate.
- At the same time the plate is being folded, the glue is compressed and spread all along the length and width of the two plates being joined together. As mentioned above, when the glue spreads, it can sometimes spread to the outside of the panels. This would not be a problem so long as the glue remains jutting out of the union of the two plates. However, one of the usual problems is that the glue can spread out in a large proportion, making contact with the wearing face of the roller.
- A rolling tool that is dirty with clamping glue is not acceptable, since as it advances, it will stain the folded flange and will later cause problems to the paint, since the remains of glue will cause a deficient adherence.
- Although the area where the glue juts out from between the two plates is afterwards sealed with a cosmetic resin, the flat side where the roller runs does not receive the same treatment, meaning that a dirty roller could cause the paint to peel away, and this would cause both quality and aesthetic problems, such as those related to rusting.
- Nowadays the process of cleaning the roller is based on making the roller rotate against another element in order to eliminate the remainders of glue by means of friction.
- In this procedure, the first difficulty encountered is making the roller rotate since the roller rotates freely while it works, moving by force of friction against the piece being clamped, and therefore does not move of its own accord.
- Every system for cleaning rollers incorporates some kind of external equipment that can be attached to the roller and that is in charge of making it roll.
- As for the friction system, two different systems are known:
- 1. Making the roller rotate against a fixed component like a strip, so that the edge of said strip brushes against the wearing surface of the roller, such that the glue is transferred from the roller to the strip.
- 2. Removing the roller from its attachment to the robot and inserting it in a washing tank.
- The first method has the problem that the strip used starts accumulating resin, so that in a few cycles it is no longer useful and must be replaced. In order to reduce as much as possible the time required to replace the strip, this process needs to be automatized, so that there must be a facility to feed the strip that is in charge of feeding the cleaning area and a station to cut the strip, so that as the cleaning of the strip is finished, it moves forward and the dirty stretch of strip can be cut and removed. The facility is complex and therefore financially unappealing.
- The second method requires a system to only detach the roller quickly, which can involve delicate mechanisms that afterwards need to bear stresses.
- The present invention addresses the problems described above and which have not been solved in the present state of the art, simplifying the current process and making the cleaning of rollers a very affordable process.
- The present invention represents a device for cleaning rollers that comprises a drive motor, a drive element joined to said drive motor, which incorporates at least one lug on its base, a felt disc joined to a cleaning motor and a solvent ejector connected to a solvent tank, which is in charge of applying solvent to the felt disc and of keeping it moistened during the working process.
- The drive motor refers to the motor in charge of moving the drive element, and the cleaning motor refers to the motor in charge of moving the felt disc in charge of cleaning the roller, both motors being of the kind known in the state of the art.
- The roller comprises at least one opening on the base, which is aligned with the corresponding fixing lugs. The lugs are located on the drive element, which are cylindrical and capable of axial movement along the openings located on the drive element.
- One of the ends of each lug is connected to the drive element by means of a spring, while in the other end the lug juts out of the drive element, sticking out. This way, the lugs have axial movement. They retreat until they are housed entirely inside the drive element when they are compressed, and they expand until they stick out of the drive element up to a certain length when they stop exerting pressure on the springs.
- A tool assembly for a robot, which contains the roller about to be cleaned, places the base of the roller so that the openings located on the base of the roller are aligned with the corresponding lugs of the drive element.
- The cleaning motor rotates in the same direction as the drive motor. In this way, in the area where the felt disc makes contact with the roller, both speeds add up causing the felt disc to clean the roller by means of friction.
- The base of the roller incorporates a series of openings placed in correspondence with the lugs of the drive element, and with slightly bigger dimensions in order to easily house them. In the moment when the roller is about to couple with the drive element, both components are positioned in such a way that their rotation axes coincide. Initially, the lugs will not coincide with the openings of the roller, so that the base of the roller will act on the lugs and compress them, pressing on the springs with the other end of the lugs and housing them inside the drive element. By actuating the drive motor, the drive element starts rotating until it reaches a position in which the fixing lugs meet the openings on the base of the roller, fitting inside them, expanding by means of the springs and transmitting the movement of the drive motor to the roller.
- The device comprises a positioning plate that has two parallel slots and that is rigidly mounted to the cleaning motor. It also incorporates a fixing mount that comprises through holes in correspondence with the parallel slots of the positioning plate. In this way, a series of screws go through the fixing mount via the through holes and the positioning plate via the parallel slots, allowing the positioning plate to move linearly along the length of the parallel slots.
- The final position of the positioning plate is fixed by means of nuts coupled to the screws. In this way, the felt disc is positioned in correspondence with the roller meant to be cleaned.
- The fixing mount can be fixed in different working positions depending on whether the felt disc needs to clean conical or cylindrical rollers.
- In order to maintain optimal working conditions, the ejector applies a solvent on the felt disc to keep it continuously moistened.
- To complete the invention being described, and in order to help to a better understanding of the features of the invention, according to a preferred embodiment thereof, a set of drawings is accompanied, in which the figures described below have been represented, for purely illustrative purposes and should not be construed as limiting:
-
Figure 1 a shows a perspective view of the drive element of the roller in a first embodiment with the electric motor actuating it, together with an enlarged exploded view of the drive element. -
Figure 1b shows a perspective view of the drive element of the roller in a second embodiment with the electric motor actuating it, together with an enlarged exploded view of the drive element. -
Figure 2 shows a perspective view of the cleaning equipment. -
Figure 3 shows a perspective view of the roller tool assembly for a robot. -
Figure 4 shows a perspective view of the device in which the constituent components are represented. -
Figure 5a shows a perspective view of the complete device with a protective housing in an open position. -
Figure 5b shows a perspective view of the complete device with a protective housing in a closed position. - Provided below is a list of the references used in the figures:
- 1. Roller.
- 2. Roller tool assembly for a robot.
- 3. Multiple drive element of the roller.
- 3'. Simple drive element of the roller.
- 4. Circular fixing lug.
- 4'. Polygonal fixing lug.
- 5. Spring.
- 6. Felt disc.
- 7. Drive motor.
- 7'. Cleaning motor.
- 8. Solvent ejector.
- 9. Electric box.
- 10. Solvent tank.
- 11. Fixing mount.
- 12. Positioning plate.
- 13. Parallel slots.
- 14. Protective housing.
- The present invention refers to a device for cleaning rollers (1) used in the process of clamping plates in a fast, simple and affordable way.
-
Figure 1 a shows a drive motor (7) together with a multiple drive element (3) where the roller (1) is fixed, and a series of circular fixing lugs (4). The multiple drive element (3) is also shown in an enlarged exploded view so that the inner components are visible, such as the circular fixing lugs (4) and some springs (5). -
Figure 1b shows, in a second embodiment, a drive motor (7) together with a single drive element (3') where the roller (1) is fixed, and a polygonal fixing lug (4'). The single drive element (3') is also shown in an enlarged sectional view so that the inner components are visible, such as the polygonal fixing lug (4) and a spring (5). - It must be highlighted that the circular (4) and polygonal (4') lugs are really cylindrical lugs with a circular or polygonal transverse section, respectively.
-
Figure 3 shows the tool assembly (2) with the roller (1) incorporated. -
Figure 2 shows the cleaning equipment comprising a cleaning motor (7') fixed to a positioning plate (12) with two parallel slots (13), a fixing mount (11), a felt disc (6) installed on the cleaning motor (7') and a solvent ejector (8) connected to a solvent tank (10). A series of screws are inserted in the fixing mount (11), which go through the parallel slots (13) and secure the positioning plate (12) to the fixing mount (11) in the desired position by means of screws. This position may be modified along the length of the parallel slots (13) depending on the size of the roller (1). Similarly, the position of the cleaning equipment can be modified such that it can be used to clean rollers (1) shaped like cones or cylinders. -
Figure 4 shows all the components of the device. - All these figures include the solvent tank (10), the electric box (9) and the structure to support the entire device, keeping the components in their relative position so that it is easier to understand
figure 4 with all the components installed. -
Figures 5a and 5b include the protective housing (14) against splatters, which surrounds the entire device, in the open and closed positions respectively. - The roller (1), without being disassembled from the roller tool assembly for a robot (2) that incorporates it, is fixed to the drive element (3, 3') of the drive motor (7). For that, the drive element (3, 3') comprises at least a lug (4, 4') joined to a spring (5) on one of its ends that allows it to have axial movement, with the other end sticking out of the drive element (3, 3'). The roller (1) incorporates on its base a series of openings where said lugs are inserted (4, 4').
- These openings preferably have, in the first embodiment, an elongated circular shape so that it is easier and faster to adjust the circular lugs (4) therein, which, as their name implies, have a geometry with circular transverse section.
- In a second embodiment, the polygonal lug (4') has a geometry whose transverse section is such that when its fits into the corresponding complementary opening located on the roller (1), it does not slide and it can transmit the rotation of the drive motor (7) to the roller (1). This means that the polygonal lug can feature a traverse section of the lug in any geometry that is not circular, although a section that comprises sides will be chosen in order to provide a better grip, preferably a regular polygonal shape in order to make it easier to fit in the corresponding opening. In this second embodiment, the opening is located on the centre of the roller and has a geometry with the same transverse section as the polygonal lug (4'), with slightly larger dimensions in order to make adjusting easier. In a preferred embodiment, as shown in
figure 1b , the transverse section has a hexagonal shape. - By means of the tool assembly (2) containing the roller (1), the roller (1) is positioned so that the base is secured to the drive element (3, 3'). The lugs (4, 4') of the drive element (3, 3') will not normally coincide with the openings of the roller (1) such that, when the roller (1) is fastened, the lugs (4, 4') will retract into the drive element (3, 3'), making the springs (5) compress.
- Once the roller has been secured (1) to the drive element (3, 3'), the drive motor (7) is actuated, making the drive element (3, 3') rotate. The lugs (4, 4') are retracted into the drive element (3, 3') and pressing against the base of the roller (1) due to the force of the springs (5).
- In the first embodiment of the invention shown in
figure 1a , when the multiple drive element (3) rotates, said circular lugs (4) meet the openings included in the base of the roller (1), being inserted into said openings. - In the second embodiment of the invention shown in
figure 2b , when the single drive element (3') rotates, the geometry of the polygonal lug (4') meets the geometry of the opening included in the centre of the roller (1), being inserted into said opening. - In either of the two cases, once the lugs (4, 4') are inserted into the openings of the roller (1), the rotating movement is transmitted to the roller (1), which is already connected to the drive motor (7).
- The process of cleaning the roller (1) consists of putting the edge of the roller (1) in contact with the edge of the felt disc (6) such that, by means of friction, the dirt of the roller (1) is eliminated. The width of the felt disc (6) will always be greater or equal to that of the roller (1), ensuring that the entire width of the roller (1) makes contact with the felt disc (6).
- The second embodiment, in which a simple cylindrical drive element (3') of a very small radius to length ratio is used, allows the cleaning equipment to move such that the felt disc (6) can attack the roller (1) not only on its front side, but also on the rims. This is also achieved by securing the roller (1) to the head of the simple drive element (3'), which only takes up the centre of the roller (1), and not of its entire base, as is the case in the first embodiment.
- The cleaning motor (7') and the drive motor (7) of the roller (1) rotate in the same direction. In this way, the relative speed in the area of contact between the roller (1) and the felt disc (6) is the sum of the two speeds of the wheels at the points of contact, which allows the felt disc (6) to clean by means of friction at a higher efficacy.
- In addition to the felt disc (6) there is an ejector (8) coupled to a solvent tank (10). In this way, the felt disc (6) is continuously moistened with solvent supplied by the ejector (8), which is in charge of applying the solvent on the felt disc (6). In this way, thanks to the solvent and the friction, it is easy to remove the adhesive adhered to the surface of the roller (1).
- A conical roller (1) is the roller chosen in the device represented in the drawings. In the case when the roller was cylindrical instead of conical, the cleaning equipment would be moved so that the axes of the drive motor (7) and the cleaning motor (7') were parallel to each other, which would thus allow the cleaning of the cylindrical roller (1).
- The cleaning motor (7') actuating the felt disc (6) is rigidly joined to a positioning plate (12) comprising a pair of parallel slots (13). The positioning plate (12) is attached to a fixing mount (11) that is rigidly joined to the workbench. This fixing mount (11) comprises drill-holes in correspondence with the parallel slots (13). In order to fix the position of the felt disc (6) in relation to the roller (1), a series of screws go through the fixing mount (11) and the parallel slots (13), enabling the positioning plate (12) to move along the parallel slots (13) until the desired position is found. The final position is fixed by applying nuts to the screws and thus fixing the positioning plate (12) to the fixing mount (11).
- The cleaning device comprises a protective housing (14) that encloses the assembly in order to avoid splashes, since a large part of the adhesive and the solvent will be ejected outwards by action of the centrifugal force and, due to the rotating speed of the motors (7, 7'), it may be dangerous.
- With this device, the roller (1) may be cleaned without having to disassemble it from the tool assembly for a robot (2) in which it is installed. The device also has reduced dimensions, which makes it easy to install it close to the clamping facility.
- The cleaning process is quick and affordable in comparison with current ones, since the expected lifespan of the felt disc (6) is longer than that of the strip currently used, its cost is lower, and the way it works is very simple and intuitive.
- The present invention is not limited by the embodiment disclosed herein. Other embodiments can be made by experts in the art following the present description. In consequence, the scope of the invention is defined by the following claims.
Claims (5)
- A device for cleaning rollers characterized in that it comprises:- a drive motor (7),- a drive element (3, 3') that incorporates at least one fixing lug (4, 4') on its base, joined to the drive motor (7),- a cleaning motor (7'),- a felt disc (6) joined to the cleaning motor (7'),- a solvent ejector (8),wherein- the roller (1) comprises at least one opening on the base that is aligned with the corresponding fixing lugs (4, 4'),- a tool assembly for a robot (2) that contains the roller (1), positions the roller (1) so that the openings located on the base of the roller (1) are aligned with the corresponding lugs (4, 4') of the drive element (3, 3'),- the cleaning motor (7') rotates in the same direction as the drive motor (7) so that, in the area where the felt disc (6) makes contact with the roller (1), both speeds add up, causing the felt disc (6) to clean the roller (1) by means of friction.so that, by actuating the drive motor (7), the fixing lugs (4, 4') of the drive element (3, 3') fit into the openings of the roller (1), transmitting the movement of the drive motor (7) to the roller (1).
- A device for cleaning rollers according to claim 1, characterized in that one of the ends of the fixing lugs (4, 4') is joined by means of springs (5) to the drive element (3, 3'), so that when the base of the roller (1) is positioned over the drive element (3, 3'), the lugs (4, 4') retract until as they rotate, due to the actuation of the drive motor (7), the fixing lugs (4, 4') meet the openings on the roller (1) and fit inside them, expanding by means of the aforementioned springs (5) in order to fix the roller (1) to the drive element (3, 3').
- A device for cleaning rollers according to claim 1, characterized in that it comprises:- a positioning plate (12) that comprises two parallel slots (13) and that is rigidly joined to the cleaning motor (7'), and- a fixing mount (11) that comprises through holes in correspondence with the parallel slots (13) of the positioning plate (12),so that a series of screws go through the fixing mount (11) via the openings and the positioning plate (12) via the parallel slots (13), allowing the positioning plate (12) to move linearly along the length of the parallel slots (13) and to secure, by means of nuts, the final position of the positioning plate (12), and to therefore secure the felt disc (6) such that it is positioned in correspondence with the roller (1) meant to be cleaned.
- A device for cleaning rollers according to claim 1, characterized in that the ejector (8) applies a solvent on the felt disc (6) in order to keep it continuously moistened.
- A device for cleaning rollers according to claim 3, characterized in that the fixing mount (11) has different working positions depending on whether the felt disc (6) has to clean conical or cylindrical rollers (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201331374A ES2534530B1 (en) | 2013-09-23 | 2013-09-23 | DEVICE FOR CLEANING ROLLERS |
PCT/ES2014/070714 WO2015040264A1 (en) | 2013-09-23 | 2014-09-22 | Device for cleaning rollers |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3050642A1 true EP3050642A1 (en) | 2016-08-03 |
EP3050642A8 EP3050642A8 (en) | 2016-09-28 |
EP3050642A4 EP3050642A4 (en) | 2016-10-12 |
Family
ID=52688283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14845714.6A Withdrawn EP3050642A4 (en) | 2013-09-23 | 2014-09-22 | Device for cleaning rollers |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3050642A4 (en) |
ES (1) | ES2534530B1 (en) |
WO (1) | WO2015040264A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112298113A (en) * | 2020-09-27 | 2021-02-02 | 枣庄高新建设集团有限公司 | Vehicle cleaning device for earthwork engineering |
EP4074425A1 (en) * | 2021-04-14 | 2022-10-19 | MAGNA Metalforming GmbH | Folding roller cleaner and method for cleaning same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113818672B (en) * | 2021-09-11 | 2023-05-02 | 北京恒源工程有限公司 | Rubber and plastic heat preservation laying device for building |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10001205C1 (en) * | 2000-01-14 | 2001-06-21 | Audi Ag | Finishing device for upright edge of e.g. motor vehicle body parts has finishing roller with brush roller and sponge element, supplied with cleaning agent |
DE10353742A1 (en) * | 2003-11-17 | 2005-06-09 | Nothelfer Gmbh | Method for cleaning folding rollers and cleaning station arranged on a robot arm for use of the method |
JP4960850B2 (en) * | 2007-12-19 | 2012-06-27 | 富士重工業株式会社 | Cleaning device |
DE102008060547B4 (en) * | 2008-12-04 | 2011-03-03 | Edag Gmbh & Co. Kgaa | Method and device for cleaning a machining roller of a machining tool |
-
2013
- 2013-09-23 ES ES201331374A patent/ES2534530B1/en not_active Expired - Fee Related
-
2014
- 2014-09-22 WO PCT/ES2014/070714 patent/WO2015040264A1/en active Application Filing
- 2014-09-22 EP EP14845714.6A patent/EP3050642A4/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112298113A (en) * | 2020-09-27 | 2021-02-02 | 枣庄高新建设集团有限公司 | Vehicle cleaning device for earthwork engineering |
CN112298113B (en) * | 2020-09-27 | 2021-11-09 | 枣庄高新建设集团有限公司 | Vehicle cleaning device for earthwork engineering |
EP4074425A1 (en) * | 2021-04-14 | 2022-10-19 | MAGNA Metalforming GmbH | Folding roller cleaner and method for cleaning same |
Also Published As
Publication number | Publication date |
---|---|
ES2534530A1 (en) | 2015-04-23 |
EP3050642A8 (en) | 2016-09-28 |
ES2534530B1 (en) | 2016-02-19 |
EP3050642A4 (en) | 2016-10-12 |
WO2015040264A1 (en) | 2015-03-26 |
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