EP3735387A1 - Fördervorrichtung, anlage zur oberflächenbehandlung und verfahren zum fördern von werkstücken - Google Patents
Fördervorrichtung, anlage zur oberflächenbehandlung und verfahren zum fördern von werkstückenInfo
- Publication number
- EP3735387A1 EP3735387A1 EP19835620.6A EP19835620A EP3735387A1 EP 3735387 A1 EP3735387 A1 EP 3735387A1 EP 19835620 A EP19835620 A EP 19835620A EP 3735387 A1 EP3735387 A1 EP 3735387A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary
- rotation
- guide
- conveying direction
- conveying
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
- B65G49/04—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction
- B65G49/0409—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length
- B65G49/0436—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath
- B65G49/044—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit
- B65G49/045—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit the circuit being fixed
- B65G49/0454—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit the circuit being fixed by means of containers -or workpieces- carriers
- B65G49/0463—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a continuous circuit the circuit being fixed by means of containers -or workpieces- carriers movement in a vertical direction is caused by lifting means or fixed or adjustable guiding means located at the bath area
Definitions
- the present invention relates to a conveyor device for conveying workpieces, which is used in particular in systems for surface treatment of workpieces, for example for the treatment and coating of vehicle bodies.
- a conveying device for conveying workpieces can in particular serve to introduce workpieces into a treatment tank filled with an immersion bath, in particular to screw them in, and then to lead them out again, in particular to turn them out.
- the conveying device can therefore be used as part of an immersion painting system.
- the present invention has for its object to provide a conveyor device which enables optimized workpiece conveying and thus preferably also an optimized surface treatment of the conveyed work pieces.
- the conveyor device preferably comprises the following:
- one or more workpiece holders which, together with one or more workpieces arranged thereon, can be conveyed along a conveying direction and rotatable about an axis of rotation;
- a guide device which, in order to influence a rotational alignment of the workpiece holders, comprises one or more rotary guide tracks running at an angle to the conveying direction, along which one or more guide elements of the workpiece holders can be guided,
- each rotation area preferably exactly one rotation area guideway, exactly two rotating guideways or more than two rotating guideways are assigned.
- an optimized rotary movement of the workpiece can be achieved, whereby in particular a shortened treatment distance and a reduction in those forces which act on the same when immersing and / or exiting the workpiece can be achieved.
- One or more essentially horizontal guide element guideways can preferably be arranged between the rotational guideways, in particular between two rotational guideways of a rotational region and / or between two rotational guideways of mutually different rotational regions. It is thus possible, in particular, for the workpieces to be conveyed between the rotary guideways without a rotational movement.
- the overtaking position being a position along the conveying direction at which the axis of rotation of a workpiece holder overtakes a guide element which is in engagement with the guide device, i.e. that the guide element initially still leads the axis of rotation with respect to the conveying direction, but then lags behind the overtaking position of the axis of rotation.
- the overtaking position is in particular a position at which the guide element is arranged at an at least locally lowest point of an overall guide track formed by all guide element guide tracks and rotary guide tracks.
- the guiding element is, for example, a guiding role. It can be expedient if at least one rotary guideway comprises a plurality of rotary guideway sections, which are in particular each formed linearly and enclose different angles with the conveying direction. As a result, in particular, different speeds of rotation can be achieved during the conveyance along the respective rotary guideway sections.
- one or more rotary guideways which are assigned to one or more rotation areas, or one or more rotary guideway sections of one or more rotary guideways, which are assigned to one or more rotation areas, are linear.
- one or more rotary guideways, which are assigned to one or more rotational areas, or one or more rotary guideway sections of one or more rotary guideways, which are assigned to one or more rotational areas, are curved.
- the curvature is preferably provided in such a way that, for example, workpieces designed as vehicle bodies are rotated more slowly when immersing or exiting in the area of a bonnet, trunk hood, bonnet and / or rear hood, in particular in order to damage the vehicle body due to excessive forces during entry and exit / or avoid swapping.
- an accelerated rotational movement of the workpiece designed as a vehicle body is preferably provided.
- One or more guide elements of the guide device are preferably arranged eccentrically to the axis of rotation about which the workpieces can be rotated.
- one or more rotary guideways are arranged and / or formed transversely to the conveying direction, in particular at an angle to the conveying direction.
- At least one rotation area or each rotation area are preferably assigned two or more than two rotary guideways, preferably along the conveying direction, firstly a descending rotary guideway and immediately or indirectly thereafter an ascending rotary guideway are provided.
- a descending rotary guide track is in particular a rotary guide track along which a guide element can be guided obliquely downward with respect to the direction of gravity.
- An ascending rotating guideway is in particular a rotating guideway along which a guide element can be guided obliquely upward with respect to a direction of gravity.
- At least one rotation area or each rotation area is assigned two or more than two rotary guideways, with an ascending twist guideway and preferably a descending twist guideway being provided along the conveying direction, preferably first.
- an overtaking position is a position in which a guide element is arranged at a local high point.
- At least one descending rotary guideway preferably comprises a plurality of rotary guideway sections, which are in particular linear and form different angles with the conveying direction.
- all descending rotary guideways include a plurality of rotary guideway sections, each of which is in particular linear and includes different angles with the conveying direction.
- At least one ascending rotary guideway comprises a plurality of rotary guideway sections, each of which is in particular linear and includes different angles with the conveying direction.
- all ascending rotary guideways each comprise a plurality of rotary guideway sections, which are in particular each linear and include different angles with the conveying direction.
- One or more guide elements are preferably connected by means of a guide body, for example a guide frame, to a workpiece holder for receiving one or more workpieces.
- a position of the guide elements in particular a height position of the guide elements, can be varied relative to an axis of rotation of the workpiece holders, as a result of which the workpiece holders together with the one or more workpieces arranged thereon can ultimately be rotated.
- At least one rotary guideway is preferably movably arranged on a basic construction of the conveyor device.
- the at least one rotary guide track is pivotally or rotatably arranged on a basic structure of the winningvor direction.
- the conveyor device comprises a movement device for moving the at least one rotary guideway, in particular for varying an angle enclosed between the rotary guideway and the conveying direction.
- the at least one rotary guideway can preferably be pivoted about an axis, which is arranged in a region on which a rotational guideway of a rotation region adjoins another rotational guideway of the same rotation region or a further rotation region.
- the movement device comprises, for example, a pressure cylinder, in particular a hydraulic cylinder, and / or an electric motor.
- a pressure cylinder in particular a hydraulic cylinder
- an electric motor for example, a hydraulic cylinder
- One or more workpieces can in particular be fixed to the workpiece holders, in particular releasably locked, in particular by means of one or more carriers, for example skids.
- the conveyor device according to the invention is particularly suitable for use in a system for the surface treatment of workpieces.
- the present invention therefore also relates to a system for the surface treatment of workpieces, which comprises, for example:
- a conveyor in particular a device according to the invention, by means of which the workpieces can be conveyed through the treatment room and immersed in one or more treatment pools.
- the workpiece holders are designed as self-propelled and / or independently drivable units and / or are drivable by means of them.
- the workpiece holders can be moved along a conveying direction by means of a chain and / or a chain drive.
- the present invention further relates to a method for conveying work pieces.
- the invention is based on the object of providing a method for conveying workpieces by means of which an optimized workpiece conveyance and in particular an optimized surface treatment is made possible.
- This object is achieved according to the invention by a method for conveying workpieces, the method comprising the following:
- each rotation area preferably being assigned exactly one rotary guide track, exactly two rotary guide tracks or more than two rotary guide tracks, along which one or more guide elements for rotating the workpieces are guided ,
- one or more rotary guideways are arranged and / or formed continuously at an angle to the conveying direction.
- the method according to the invention preferably has one or more of the features and / or advantages described in connection with the conveyor device according to the invention and / or the system according to the invention.
- system according to the invention preferably has individual or a plurality of the features and / or advantages described in connection with the conveyor device according to the invention and / or the method according to the invention.
- one or more rotary guideways each comprise a plurality of rotary guideway sections, which are in particular each linear and include different angles with the conveying direction.
- one or more rotary guideways are curved.
- All features, which generally relate to a rotation area, can be provided in particular on a screw-in rotation area for turning a workpiece into an immersion bath.
- a slowed rotational movement of a workpiece can be provided wherever a minimized scooping effect of the workpiece and / or a reduced formation of air bubbles is desired by suitable design of one or more rotary guideways.
- a rotary guideway with three or more rotary guideway sections can also be provided in order to increase or slow the rotation movement very locally.
- Figure 1 is a schematic cross section through an installation for surface treatment of vehicle bodies, with a vehicle body which is arranged on a rotatable workpiece holder and is located above the bath level of an immersion bath.
- Fig. 2 is an enlarged view of area I of Fig. 1, which shows a cross section through a chain guide and a conveyor chain guided on the chain guide, a guide element guide with a guide element guided thereon of the workpiece holder and a sealing device for sealing between a treatment room and a rule Outside of the system of Figure 1 shows, at a point where a rotary shaft of the workpiece holder passes through the sealing device.
- FIG. 3 shows an enlarged view of area II from FIG. 2;
- FIG. 4 shows a schematic cross section through the chain guide track with a conveyor chain guided thereon, the guide element guide track with guide guide guided thereon and the sealing device at a point at which no part of a workpiece holder passes through the sealing device;
- FIG. 5 shows an enlarged representation of area III from FIG. 4;
- Fig. 6 is a schematic plan view from above of successive in the conveying direction sealing elements of the sealing device, which are arranged perpendicular to the conveying direction offset from each other;
- each sealing element has a receiving channel for receiving an edge region of an adjacent sealing element
- Fig. 8 is a schematic side view of the sealing device, the För derchain and the guide element guide track;
- FIG. 9 shows a schematic side view of the sealing device, the conveyor chain and the guide element guide track in an end region of a water lock of the sealing device
- FIG. 10 shows a schematic side view of an upper conveyor chain deflection wheel and the conveyor chain in engagement therewith with the sealing elements
- FIG. 11 shows a schematic side view of a lower conveyor chain deflection wheel with the conveyor chain in engagement with it, the sealing elements arranged thereon and a workpiece holder;
- FIG. 12 shows a schematic cross section through a conveyor chain return with a conveyor chain guide track and a guide element guide track, at a point at which a workpiece holder passes through a sealing element;
- FIG. 13 shows a schematic cross section through the chain return with the conveyor chain guide track and the guide element guide track, in the region of a sealing element through which no part of the workpiece holder passes;
- FIG. 14 is a schematic side view of two in the conveying direction on successive treatment pools of the system for surface treatment of vehicle bodies;
- FIG. 16 shows a representation of a treatment basin corresponding to FIG. 15, in which a vehicle body is immersed in an upside-down position;
- Fig. 17 is a schematic side view of a workpiece holder
- a conveyor device in which a turning-out rotation area is provided, which comprises a descending rotary guideway with two inclined rotary guideway sections;
- FIG. 19 shows a representation of the second off corresponding to FIG. 18
- FIG. 20 shows a representation of the second off corresponding to FIG. 18
- FIG. 21 is a representation corresponding to FIG. 18 of a third embodiment of the conveying device, in which a turning-in rotation area and a turning-out rotation area each comprise a descending rotary guide track with two rotary guide track sections running at an angle to one another;
- FIG. 22 shows a representation corresponding to FIG. 18 of a fourth embodiment of the conveying device, in which an unscrewing-rotation region comprises a curved, descending rotary guide track;
- a screw-in rotation region comprises a movement device for moving a rotation guide track.
- 1 to 17, designated as a whole by 100 for the surface treatment of vehicle bodies 102 comprises a treatment room 106 surrounded by a housing 104, through which the vehicle bodies 102 by means of a conveyor device designated as a whole by 108 along a conveying direction 110 are eligible.
- the conveying device 108 comprises a plurality of workpiece holders 112 which follow one another in the conveying direction 110, each of which comprises a rotating shaft 116 which can be rotated about an axis of rotation 114 which is substantially horizontal and perpendicular to the conveying direction 110.
- Carriers 118 are fixed to the rotating shaft 116, which bear clamping devices 120, by means of which a vehicle body 102 can be detachably locked to the workpiece holder 112.
- the front end regions 122 of the rotary shaft which preferably have a smaller diameter than their central part 124, extend through a sealing device 124 to be described in more detail below from the treatment space 106 into an outer space 123 and preferably each carry a rotationally fixed one with the rotary shaft 116 verbun those, for example approximately rectangular, guide body 125, in particular a lead frame, the shape of which can be seen, for example, from FIG. 17.
- the guide body 125 is preferably part of a guide device 121, by means of which a rotational alignment of a workpiece arranged on the workpiece holder 112 can be influenced, in particular controlled.
- corner regions 127 of the guide body 125 outer guide elements 126 facing away from the treatment room 106 and / or preferably inner guide elements 130 facing the treatment room 106 are preferably arranged.
- the outer guide elements 126 are designed, for example, as outer guide rollers 128.
- the inner guide elements 130 are designed, for example, as inner guide rollers 132.
- the outer guide rollers 128 and / or the inner guide rollers 132 are preferably each rotatably held on the guide body 125 about substantially horizontal and / or substantially perpendicular to the conveying direction 110 axes of rotation.
- the outer guide rollers 128 and / or the inner guide rollers 132 preferably act, for example, with substantially horizontal guide element guide tracks 134 which extend to one or both sides of the treatment space 106, for example along the conveying direction 110, in particular around the rotary shaft 116 and thus holding the vehicle body 102 held on the workpiece holder 112 in a predetermined rotational position with respect to the axis of rotation 114.
- One or more, in particular all, of these, for example, essentially horizontal guide element guide tracks 134 are preferably each a U-profile open to the guide bodies 125 of the workpiece holder 112 with an upper horizontal leg 136, a lower horizontal leg 138 and one of the two legs 136 and 138 connecting vertical web 140 formed.
- An outer guide roller 128 preferably engages in the interior of the horizontal guide element guide track 134 between the two horizontal legs 136 and 138 and rolls, for example, on the upper side of the lower horizontal leg 138, which in particular forms a horizontal guide surface 142.
- the horizontal guide element guide path 134 is preferably carried by a plurality of brackets 144 spaced apart along the conveying direction 110, which are L-shaped in cross section and have a vertical leg 146 and a horizontal leg 148 exhibit.
- the upper edge of the vertical leg 146 is preferably integrally formed with a horizontal holding rail 150 extending along the conveying direction 110.
- the holding rail 150 carries on its upper side in particular a conveyor chain guideway 152, which in turn preferably comprises a device 110 extending in the conveying direction, U-shaped in cross section and / or open at the top, the horizontal web preferably having a horizontally along the conveying direction 110 running track 156 carries (see in particular Fig. 3).
- Carrier rollers 158 of a conveyor chain 160 preferably roll on the running rail 156, which consists of chain links which follow one another in the longitudinal direction of the conveyor chain 160, for example articulatedly connected to one another (see in particular FIG. 8), the carrier rollers 158 preferably being rotatably mounted on some of these chain links .
- the conveyor chain 160 is preferably driven by means of a drive device (not shown) for a continuous or intermittent orbital movement along the conveyor chain guideway 152.
- the chain links 162 are preferably provided at their upper edges with, for example, horizontal projections 164, which in particular each carry a mounting bracket 168 reinforced, for example, by a knot 166.
- each of these sealing elements 172 preferably comprises a long vertical leg 174, a horizontal web 176 projecting from the upper edge of the long vertical leg 174 in the direction of the treatment room 106 and a short projecting from the treatment room 106 facing edge of the horizontal web 176 vertical web 178.
- FIG. 1 As can best be seen from the top view of FIG.
- the sealing elements 172 of the sealing device 124 preferably follow one another along the conveying direction 110 in such a way that adjacent sealing elements 172a and 172b in particular each overlap by a distance along the conveying direction 110 , so that the sealing elements 172 form an uninterrupted sealing wall extending in the conveying direction 110.
- the long vertical legs 174 of the sealing elements 172 are alternately offset from the treatment space 106 (sealing elements 172a) and towards the treatment space 106 (sealing elements 172b) in order to overlap along the conveying direction 110 to enable successive sealing elements 172.
- the sealing elements 172a displaced away from the treatment room 106 are additionally at their rear edge, as seen in the conveying direction 110, with a vertically extending receiving channel 180 for receiving the - in the conveying direction 110 seen - provided the front edge of the subsequent sealing element 172b, which is set toward the treatment room 106.
- a particularly good seal between the successive sealing elements 172a and 172b is achieved, and the successive sealing elements 172 are brought together through the receiving channels 180, whereby the movement of the sealing elements 172 along the circumferential direction of the conveyor chain 160 is stabilized.
- the sealing elements 172b with the long vertical legs 174 offset toward the treatment room 106 preferably have a narrower and lower outer contour than the sealing elements 172a with the long vertical legs 174 set away from the treatment room 106, so that the sealing elements 172b An adjacent sealing element 172a can be overlapped in such a way that an edge area of each sealing element 172b can be plugged into an edge area of an adjacent sealing element 172a.
- this edge region of the sealing element 172b preferably lies flat against an inside of the edge region of the respective sealing element 172a, which shows the sealing effect between the successive sealing elements 172a and 172b and the mutual guidance of the successive sealing elements 172 during their common movement in the direction of rotation the conveyor chain 160 improved.
- the lower edges 182 of the sealing elements 172 are preferably immersed in an upper liquid bath 184 and the lower edges 186 of the sealing elements 172 in a lower one Liquid bath 188 a.
- the upper liquid bath 184 is received in an upper receptacle 190, which is formed as an extending in the conveying direction 110 upper water channel 192 with a U-shaped, upwardly open cross section from and fixed to a lower edge of the housing 104 of the treatment room 106 is.
- the lower liquid bath 188 is received in a lower receptacle 194, which is designed as a lower water channel 196 which extends in the conveying direction 110 and has a substantially J-shaped cross section, which is fixed on the upper side of the holding rail 150.
- the upper liquid bath 184 forms an upper water castle with the upper water channel 192
- the lower liquid bath 188 forms a lower water castle of the sealing device 124 with the lower water channel 196.
- a plurality of treatment pools 198 are preferably arranged one behind the other in the conveying direction 110, each of which is filled up to a bath level 200 with an immersion bath 202, for example with a painting liquid or a pre-treatment liquid (see FIGS. 1 and 14). .
- Each holding rail 150 is fixed to the top of a side wall 204 of such a treatment basin 198 and extends along the conveying direction 110 over a length of, for example, at least six meters, preferably over the entire length of the respective treatment basin 198.
- V-shaped guide element guideways 206 are held on the holding rail 150, preferably by means of vertically downwardly projecting brackets 204, in particular for each treatment basin 198, for example one front V each Guide 208 for guiding the immersion movement and a rear V-guide 210 for guiding the immersion movement of the vehicle bodies 102.
- the V-guides 208, 210 in particular form rotary guideways 207 of the guide device 121.
- Each of the V-guides 208, 210 preferably comprises a front, rotating guide track 207 and an adjoining rear, ascending, rotating guide track 207.
- each workpiece holder 112 is preferably guided by an outer guide roller 128 on a horizontal guide element guide 134 before reaching a V-shaped guide element guide path 206.
- a transfer section in particular a transfer funnel 216, is preferably provided, by means of which an outer guide element 126, in particular an outer guide roller 128, can be moved upward, so that an interior arranged on a front edge of the guide body 125 Guide element 130, in particular an inner guide roller 132, is moved downwards into the descending rotary guide track 207 of the V-shaped guide element guide track 206 and subsequently slides or rolls along a guide surface 218 of this guide element guide track 206.
- the engagement of the inner guide element 130, in particular the inner guide roller 132, in the front V-guide 208 results in a turning movement into the immersion bath 202 and at the end of the treatment basin 198, the engagement of a further inner guide element 130, in particular another inner guide roller 132, in the rear V-guide 210 causes the workpiece to be removed from the immersion bath 202.
- opposite inner guide elements 130 in particular guide rollers 132a, 132b, are seen for this purpose with respect to the rotary shaft 116.
- an outer guide element 126 passes through a transfer section, in particular a transfer funnel 216, into a V-shaped guide shaped guide element guide 206 adjoining, for example horizontal guide element guide way 134, so that the guide body 125 and thus the rotating shaft 116 together with the workpiece held thereon, in particular the vehicle body 102 held thereon, during the passage through the essentially horizontal guide element guide way 134 in a constant rotational position is held.
- each rotary shaft 116 are preferably held rotatably via a respective shaft bearing 220 on a respective, for example approximately trapezoidal, bearing block 222, which is preferably arranged on the respectively associated conveyor chain 160 (see FIGS. 3 and 8).
- the sealing element 172 'adjacent to the bearing block 222 is preferably provided with a passage opening for the passage of the rotary shaft 116 through the long vertical leg 174 of the sealing element 172'.
- annular sleeve seal 226 is arranged, the inner side of which forms an annular sliding surface lying against the circumference of the rotating shaft 116, so that the rotating shaft 122 is rotatable relative to the sealing element 172' and the gap between the edge the passage opening 224 and the jacket surface of the rotary shaft 116 is sealed by the sleeve seal 226. In this way, a very good sealing effect is achieved in the area where the rotary shaft 116 is passed through by the sealing device 124.
- the lamellar sealing elements 172, 172 ' can be formed from any material which has sufficient resistance to the media present in the treatment room 106, in particular vapors from the immersion baths 202.
- the sealing elements 172, 172 'can in particular be formed from a suitable plastic material or a suitable metallic material, in particular from a steel material.
- one holding rail 150 preferably forms a holding element 264 of a module 266 of the conveying device 108, which, in addition to the holding rail 150, tracks the section of the conveyor chain guide track 152 held on the same and the V-shaped guide element guide held on the holding rail 150 and the sections of the held on the holding rail 150 in the
- Essentially horizontal guide element guide track 134 comprises.
- Each of these modules 266 is preferably manufactured as a preassembled unit and is fixed in the assembly of the system 100 for the surface treatment of workpieces, in particular vehicle bodies 102, in each case one of the treatment tanks 198, for example by welding or screwing.
- successive modules 266 can, for example, adjoin one another directly on their end faces or be connected to one another via holding rails 150 ′ arranged between the facing end faces of successive modules 266 (see FIG. 15).
- the modules are fixed to an adjacent module 266 or to a holding rail 150 'arranged between two successive modules 266, for example by welding or screwing or by a plug connection which is secured by welding or screwing.
- the sealing device 124 preferably comprises a flow area 228 shown in FIGS. 2 to 5, through which the sealing elements 172,
- the system 100 preferably comprises a deflection device 232 for each conveyor chain 160, by means of which the conveyor chain 160 in question and the sealing elements 172, 172 'arranged thereon from the forward area 228 essentially along one vertically extending sheet can be moved into the return area 230.
- Each of these deflecting devices 232 preferably comprises an upper deflecting sprocket 234 and a lower deflecting sprocket 236, both of which are in particular both provided with teeth 238 which come into engagement with the conveyor chain 160 in the region of the joints between the successive chain links 162.
- One or both idler sprockets 234, 236 can be driven to drive the orbital motion of the conveyor chain 160.
- a further deflection device is preferably provided, by means of which the conveying chain 160 with the sealing elements arranged thereon elements 172, 172 'is moved back from the return area 230 to the forward area 228 via a substantially vertical arc.
- the return area 230 of the conveyor device 108 preferably runs below the treatment basin 198.
- a holding rail 240 can be provided in the return area 230 on each side of a treatment basin 198, for example, which is screwed, for example, to a support structure 242 of the treatment basin 198.
- the holding rail 240 preferably has an L-shaped cross section, with a horizontal leg 244 and a vertical leg 246 projecting downward from an outer lateral edge of the horizontal leg 244.
- the horizontal leg 244 of the holding rail 240 preferably holds a chain support bracket 248, the horizontal leg of which carries on its upper side a running rail 250 on which the support rollers 158 of the conveyor chain 160 roll.
- a chain guide bracket 252 is preferably held, the vertical leg of which forms a lateral guide for the conveyor chain 160.
- the chain support bracket 248 and the chain guide bracket 252 together form a chain guide track 254, which is held on the holding rail 240.
- a plurality of brackets 256 also protrude from the holding rail 240, which are reinforced in particular by gusset plates 258 and preferably have a horizontal guide element guide track 260 held at their free ends.
- the horizontal guide element guide track 260 preferably has a substantially U-shaped cross section and opens in particular toward the support structure 242 of the treatment basin 198.
- an outer guide element 126 in particular an outer guide roller 128, of the guide body 125 of each workpiece holder 112 engages in order to hold the guide body 125 and thus the rotary shaft 116 while passing through the return area 230 in a predetermined constant rotational position .
- a holding rail 240 preferably forms a holding element 268 of a module 270 of the conveying device 108 which, in addition to the holding rail 240, comprises the section of the chain guide track 254 held thereon and the section of the horizontal guide element guide track 260 held on the holding rail 240.
- modules 270 can be manufactured as a preassembled unit and is preferably fixed to the support structure 242 of a treatment basin 198, for example by welding or screwing, when the installation 100 for the surface treatment of vehicle bodies 102 is installed.
- successive modules 270 are fixed to one another at their end faces, for example, in particular by welding or screwing or by a plug connection which is secured by welding or screwing.
- the workpieces are preferably removed from the respective workpiece holder 112 in a removal station (not shown) before the deflection device 232 is reached. Also before reaching the deflection device 232, preferably the sealing elements 172, 172 'passing through the forward area 228 of the conveying device 108 are lifted out of the upper liquid bath 184 and from the lower liquid bath 188, as is shown schematically in FIG. 9 in relation to the lower liquid bath 188 is.
- Gutter 196 arranged lower liquid bath 188 are lifted out when they are moved in the direction of rotation of the conveyor chain 160.
- the lower water channel 196 ends at a vertical end wall 262 running transverse to the conveying direction 110.
- the upper edges 182 of the sealing elements 172 are lifted out of the upper liquid bath 184, which is arranged in the upper water channel 192, by the inclination of the conveyor chain guideway 152.
- the system for surface treatment of vehicle bodies 102 described above functions, for example, as follows:
- One workpiece each, in particular one vehicle body 102 in each case, is detachably locked in a loading station (not shown) of the conveying device 108 by means of the clamping devices 120 on a workpiece holder 112 in each case.
- the vehicle body 102 is initially in the default position shown in FIG. 1, in which vehicle pillars of the vehicle body are arranged above half a floor assembly of the vehicle body.
- the workpiece holder 112 is then moved by means of the conveyor chains 160 from the loading station to the beginning of a treatment basin 198.
- the vehicle body 102 is introduced into the immersion bath 202 located in the treatment basin 198, in that the rotary shaft 116 of the workpiece holder 112 by interaction of an inner guide roller 132 with a front V-guide 208 by an angle of 180 ° around the axis of rotation 114 in the immersion bath 202 is rotated into it.
- the vehicle body 102 After completion of the rotational movement of the rotary shaft 116, the vehicle body 102 has been transferred from the original standard position to the head transfer shown in broken lines in FIG. 16, in which the vehicle pillars of the vehicle body 102 are arranged below the floor assembly of the vehicle body 102.
- the vehicle body 102 In the fully immersed state, the vehicle body 102 is moved along the conveying direction 110 through the immersion bath 202.
- the vehicle body 102 When the vehicle body 102 has reached the end region of the treatment basin 198 due to the translational movement along the conveying direction 110, the vehicle body 102 is brought out of the immersion bath 202 again by the rotary shaft 116 through the interaction of an inner guide roller 132 with a rear V-guide 210 is rotated through an angle of 180 ° about the axis of rotation 114.
- This unscrewing movement of the rotary shaft 116 can take place with the same direction of rotation as the screwing-in movement or with a direction of rotation opposite to the screwing-in movement.
- the vehicle body 102 After the vehicle body 102 has been brought out of the first treatment basin 198, the vehicle body 102 is preferably conveyed through one or more further treatment basins 198 and finally moved into a removal station (not shown) in which the vehicle body 102 after the clamping devices 120 have been released from the workpiece bracket 112 is removed.
- a second embodiment of a conveying device 108 shown in FIGS. 18 to 20 serves, for example, for immersing and immersing a workpiece designed as a vehicle body 102 in or out of an immersion bath 202 arranged in a treatment pool 198.
- the conveying device 108 comprises a guide device 121, which comprises two rotation regions 300 for rotating the vehicle body 102. With respect to the conveying direction 110, a screwing-in rotation region 302 is provided, on which a turning-out and rotating region 304 follows along the conveying direction 110.
- Each rotation region 300 of the guide device 121 comprises two rotary guide tracks 207.
- the rotary guideways 207 of the screw-in rotation region 302 are each linear and include the angles ⁇ , ⁇ with the conveying direction 110.
- the angle ⁇ and the angle ⁇ can be the same size. However, different angles a, ⁇ can also be provided. For example, the angles a, ⁇ are approximately 30 ° or approximately 45 °.
- the angle a is in particular the angle which is enclosed by a front descending rotary guideway 207v and the conveying direction 110.
- the angle ⁇ is preferably the angle which is closed by a rear and rising rotary guideway 207h and the conveying direction 110.
- the rotating guideways 207 of the unscrewing and rotating area 304 differ from those of the unscrewing and rotating area 302 in that, for example, the front descending rotating guideway 207v is not linear, but has a kink.
- the front descending rotary guideway 207v thus comprises in particular two rotary guideway sections 209 which enclose different angles gcardi and g2 with the conveying direction 110.
- a with respect to the conveying direction 110 front rotary guideway section 209 preferably includes an angle gcardi with the conveying direction 110, which is smaller than an angle g2 which is included by the rear rotational guideway section 209 with respect to the conveying direction 110 of the front descending rotary guideway 207v and the conveying direction 110 becomes.
- the angle g ⁇ is approximately 20 °, for example.
- the angle g2 is approximately 60 °, for example.
- An angle 5, which is formed by the rear ascending rotary guideway 207h of the unscrewing rotation region 304 and the conveying direction 110, is, for example, approximately 45 °.
- the kinked design of the front descending rotary guideway 207v of the unscrewing-rotation region 304 in particular enables the vehicle body 102 to move out of the immersion bath 202 slowly.
- the reduced angle g im compared to the other angles a, ⁇ , g2 and d enables a slowed down rotation of the vehicle body 102 if and only if this is done with a bonnet 306 of the vehicle body 102 is led out of the immersion bath 202.
- a water pressure which acts on the bonnet 306 when it is replaced can preferably be reduced by this slow rotary movement.
- the larger angle g2 allows an accelerated rotary movement to be achieved directly afterwards, in order in particular in spite of the temporarily slow exchange movement to allow the vehicle body 102 to be quickly brought out of the immersion bath 202.
- the second embodiment of the conveyor device 108 shown in FIGS. 18 to 20 corresponds in terms of structure and function to the embodiment described in FIGS. 1 to 17, so that reference is made to the above description thereof.
- a third embodiment of a conveying device 108 shown in FIG. 21 differs from the second embodiment shown in FIGS. 18 to 20 essentially in that a front descending rotary guide track 207v with two inclined rotary guide track sections 209 is also provided in the screw-in rotation area 302 is.
- the resulting angles a1 and a2 are selected such that the rotational guide track section 209 which is forward with respect to the conveying direction 110 includes a larger angle a1 with the conveying direction 110 than the rotary guide track section 209 with the conveying direction 110 which is rear with respect to the conveying direction 110.
- the angle a1 is, for example, 75 °.
- the angle a2 is approximately 45 °, for example.
- the third embodiment of the conveyor device 108 shown in FIG. 21 is correct in terms of structure and function with that in FIGS 20 shown second embodiment, so that reference is made to the above description in this regard.
- a fourth embodiment of a conveying device 108 shown in FIG. 22 differs from the second embodiment shown in FIGS. 18 to 20 essentially in that the front descending rotary guideway 207v of the unscrewing-rotation region 304 is not bent, but curved.
- the entire front descending rotary guideway 207v is continuously curved.
- a tangent which is applied to the front end region of the front descending rotary guideway 207v with respect to the conveying direction 110 preferably includes a smaller angle g ⁇ with the conveying direction 110 than a tangent which is at a rear and thus the rear with respect to the conveying direction 110 Ascending rotation guide 207h facing end portion of the front descending rotation guide 207v is created (angle g2).
- This configuration of the front descending rotary guideway 207v in the unscrewing-rotation region 304 in particular enables an initially slow turning on with progressively turning the vehicle body 102 further. This also allows a force acting on the hood of the vehicle body 102 to be preferably minimized.
- a fifth embodiment of a conveyor device 108 shown in FIG. 23 differs from the third embodiment shown in FIG. 21 essentially in that the different rotational speed of the vehicle body 102 in the turning-in rotation region 302 is not due to a bent front descending rotary guideway 207v, but instead is achieved by a front descending rotary guideway 207v moved by means of a movement device 310.
- the movement device 310 is in particular fixed to a basic construction 312 of the conveyor device 108 and enables the front descending rotary guide track 207v to be pivoted about an axis 314, which in particular at a transition region between the front descending rotary guide track 207v and the rear ascending rotary guide track 207h Screw-in rotation region 302 is provided.
- This axis 314 is in particular substantially perpendicular to the conveying direction 110 and / or essentially horizontally aligned.
- a guide element 126 (see in particular FIG. 17) can be arranged in a first one
- an angle ⁇ is then preferably varied by means of the movement device 310, which the front descending rotary guideway 207v includes with the conveying direction 110.
- the angle a can in particular be reduced in order to carry out a slow immersion process after the vehicle body 102 has been turned on quickly.
- any combination of features of the above-described embodiments can be provided.
- an additional movement of the same by means of a movement device 310 can also be provided in the case of kinked rotary guideways 207.
- rear ascending rotary guideways 207h can be formed kinked or curved in order to optimize a rotational movement of the workpieces to be conveyed.
Landscapes
- Coating Apparatus (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Chain Conveyers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018221972.9A DE102018221972A1 (de) | 2018-12-17 | 2018-12-17 | Fördervorrichtung, Anlage zur Oberflächenbehandlung und Verfahren zum Fördern von Werkstücken |
| PCT/DE2019/101094 WO2020125864A1 (de) | 2018-12-17 | 2019-12-16 | Fördervorrichtung, anlage zur oberflächenbehandlung und verfahren zum fördern von werkstücken |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3735387A1 true EP3735387A1 (de) | 2020-11-11 |
Family
ID=69159498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19835620.6A Pending EP3735387A1 (de) | 2018-12-17 | 2019-12-16 | Fördervorrichtung, anlage zur oberflächenbehandlung und verfahren zum fördern von werkstücken |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3735387A1 (de) |
| CN (1) | CN113195386A (de) |
| DE (2) | DE102018221972A1 (de) |
| WO (1) | WO2020125864A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT527795A1 (de) * | 2023-12-07 | 2025-06-15 | Fehberger Alex | Vorrichtung zum Transport von Karosserien entlang einer Behandlungsstrecke mit zumindest einem Tauchbecken |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10057150A1 (de) * | 2000-11-17 | 2002-05-29 | Audi Ag | Vorrichtung zum Ein- und Austauschen eines Substrats |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10121053A1 (de) * | 2001-04-28 | 2002-10-31 | Duerr Systems Gmbh | Fördervorrichtung zum Fördern von Werkstücken durch einen Behandlungsbereich zur Oberflächenbehandlung der Werkstücke |
| DE102007031821A1 (de) * | 2007-07-07 | 2009-01-08 | Dürr Systems GmbH | Fördervorrichtung und Modul für eine Fördervorrichtung |
| DE102007031822A1 (de) * | 2007-07-07 | 2009-01-08 | Dürr Systems GmbH | Abdichtvorrichtung |
| DE102013208309A1 (de) * | 2013-05-06 | 2014-11-06 | Dürr Systems GmbH | Anlage zum Befördern von Werkstücken |
| DE102014014137A1 (de) * | 2014-09-30 | 2016-03-31 | Dürr Systems GmbH | Fördersystem für Werkstücke |
-
2018
- 2018-12-17 DE DE102018221972.9A patent/DE102018221972A1/de not_active Withdrawn
-
2019
- 2019-12-16 DE DE112019006233.6T patent/DE112019006233A5/de active Pending
- 2019-12-16 CN CN201980083191.3A patent/CN113195386A/zh active Pending
- 2019-12-16 WO PCT/DE2019/101094 patent/WO2020125864A1/de not_active Ceased
- 2019-12-16 EP EP19835620.6A patent/EP3735387A1/de active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10057150A1 (de) * | 2000-11-17 | 2002-05-29 | Audi Ag | Vorrichtung zum Ein- und Austauschen eines Substrats |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018221972A1 (de) | 2020-06-18 |
| DE112019006233A5 (de) | 2021-08-26 |
| WO2020125864A1 (de) | 2020-06-25 |
| CN113195386A (zh) | 2021-07-30 |
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