EP3793957A1 - Rollenförderer zum transport einer scheibe - Google Patents
Rollenförderer zum transport einer scheibeInfo
- Publication number
- EP3793957A1 EP3793957A1 EP19721289.7A EP19721289A EP3793957A1 EP 3793957 A1 EP3793957 A1 EP 3793957A1 EP 19721289 A EP19721289 A EP 19721289A EP 3793957 A1 EP3793957 A1 EP 3793957A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- cooling device
- upper cooling
- bending
- roller conveyor
- 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- Withdrawn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
- 238000001816 cooling Methods 0.000 claims abstract description 250
- 238000005452 bending Methods 0.000 claims description 138
- 238000009413 insulation Methods 0.000 claims description 39
- 239000002826 coolant Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 14
- 239000006228 supernatant Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000003825 pressing Methods 0.000 description 11
- 239000010935 stainless steel Substances 0.000 description 10
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 239000000919 ceramic Substances 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000036316 preload Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/162—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors combined with means for thermal adjustment of the rollers, e.g. cooling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
- C03B35/183—Construction of the conveyor rollers ; Materials, coatings or coverings thereof specially adapted for thermal adjustment of the rollers, e.g. insulating, heating, cooling thereof
- C03B35/184—Cooling
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
- C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
- C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
Definitions
- Roller conveyor for transporting a disc
- the invention relates to a roller conveyor for transporting a disc with at least one cooling device for cooling a set of roller ends of the roller conveyor.
- WO 2017/178733 A1 describes a bending method in which the disk is bent in a bending chamber which has a first and a laterally offset second bending form.
- the transport of the wheel to be processed into the position below the first bending mold takes place via a roller conveyor comprising a multiplicity of transport rollers, wherein one row of the roller ends of the transport rollers is arranged inside the bending chamber.
- Thermal bending processes are usually carried out at temperatures of 650 ° C to 700 ° C. Such high temperatures in the bending chamber can lead to problems with the arranged at the roller ends pivot bearings of the roller conveyor used in the thermal bending process, in particular to a faster wear and damage to the pivot bearing. Such damage can affect the process accuracy.
- WO 2017/078908 A1 discloses a roller conveyor for a bending method, in which the roller ends arranged in the bending chamber are cooled by a cooling unit.
- the cooling chamber of the cooling unit is thereby defined by sleeves which are arranged individually around the roll ends and an enclosure which surrounds the roll ends arranged in the bending chamber.
- a roll change is associated with the roller conveyor described in WO 2017/078908 A1 with great effort.
- the transport roller must be pulled laterally out of the sleeve and then a new transport roller can be pushed laterally into the sleeve.
- the present application is based on the object to provide an improved roller conveyor with at least one cooling device for cooling a set of roller ends of a roller conveyor, in which in particular a simple replacement of individual transport rollers is possible.
- An inventive roller conveyor for transporting a disc along a transport direction comprises at least:
- a plurality of transport rollers arranged side by side in the transport direction and having roller ends with pivot bearings disposed thereon, at least one upper cooling device for cooling a set of roller ends having a top, an oppositely disposed bottom, and a circumferentially disposed side surface;
- the upper cooling device is disposed between a first position in which the upper cooling device is disposed substantially parallel to the rotational axis of the transport rollers above the set of roller ends for cooling the roller ends and the lower surface of the cooling device faces the set of roller ends, and a second position. in which the upper cooling device is compared with the first position by the angle a (alpha) is pivoted upward, is movable.
- the rotary bearings may for example be arranged directly on the roller ends or arranged on the roller ends arranged connecting pieces for connection of the respective roller end with the respective rotary bearing.
- the connectors are formed as end caps, i. the rotary bearings are arranged on end caps arranged on the roller ends.
- the roller conveyor according to the invention is preferably a roller conveyor for a disc processing system, in particular a roller conveyor for a bending device, comprising a bending chamber in which a first bending mold and a laterally offset bending mold are arranged.
- the roller conveyor according to the invention is preferably suitable for a disc in the bending chamber in a position below the to transport the first bending mold and a series of roller ends of the roller conveyor is arranged in the heated bending chamber.
- all arranged in the heated bending chamber roller ends are cooled by means of at least one upper cooling device.
- the roll ends arranged outside the heated bending chamber are preferably not cooled.
- the roll ends outside the bending chamber, which are arranged in the vicinity of the bending chamber can, if desired, also be cooled.
- the cooling can be done with any suitable cooling system, such as using water or other cooling liquid leading cooling tubes.
- the bottom of the upper cooling device is referred to in the context of this application, the surface of the upper cooling device, which faces in the first position to the set of roll ends.
- the top of the upper cooling device is referred to in the context of this application, the underside opposite surface of the upper cooling device. Between the top and the bottom of the upper cooling device extends the circumferentially arranged side surface of the upper cooling device.
- pane refers in particular to a pane of glass, preferably a thermally to be prestressed soda-lime glass.
- the upper cooling device is disposed in the first position parallel to the axis of rotation of the transport rollers above the set of roller ends for cooling the roller ends.
- the angle a is between 30 ° (degrees) and 180 °, more preferably 45 ° to 90 °, most preferably 60 ° to 90 °.
- the upper cooling device is fully pivoted upwardly in the second position, i. the angle a is 90 ° and the underside of the upper cooling device is arranged substantially perpendicular to the axis of rotation of the transport rollers.
- the upper cooling device is pivoted in the second position by 180 ° upwards.
- the mobility of the upper cooling device is preferably achieved via a connecting rod to which the upper cooling device is pivotally mounted.
- the person skilled in the art suitable pivotable mounting options of the upper cooling device are known.
- a set of roller ends of the roller conveyor preferably comprises two to twenty, more preferably four to ten, most preferably six roller ends. However, one set of roll ends may include only one roll end, in which case the upper cooling device provided for cooling this set of roll ends only cools a single roll end.
- the roller conveyor according to the invention has the advantage over the roller conveyors of the prior art that it allows effective cooling of at least one set of roller ends and at the same time a simple roll change is possible because the upper cooling device which cools a roller end of the transport roller to be replaced, for the Reel change can be swung up.
- the roller conveyor comprises at least two, preferably at least four, more preferably five to ten upper cooling devices for cooling a respective set of roller ends, wherein the upper cooling devices are arranged side by side in the transport direction.
- a roller conveyor according to the invention may also comprise more than ten upper cooling devices.
- each of the upper cooling devices being suitable for cooling one set of the roller ends, offers the advantage that, for exchanging a transport roller, only that upper cooling device which cools that set of roller ends must be pivoted upwards, which comprises the rolling end of the transport roller to be exchanged.
- only the cooling of one set of roller ends is interrupted by the movement of this upper cooling device from the first position to the second position.
- the remaining sets of roll ends are further cooled by the other upper cooling devices which may remain in the first position during the replacement of the roll, and consequently the risk of heat-related wear of their pivot bearings is reduced.
- the transport rollers of a roller conveyor according to the invention are cylindrical rollers and are preferably made of ceramic, in particular a ceramic based on silicate, so-called "fused silica insulating foam".
- the arranged at the roll ends either directly or via a connecting piece pivot bearing can be made of a metal or a metal-containing alloy, such as stainless steel.
- the optionally arranged at the roll ends connectors, for example, as end caps may be formed, may also be made of a metal or a metal-containing alloy, such as stainless steel.
- the transport rollers of the roller conveyor form a roller bed for two-dimensional recording of a disc.
- the transport rollers of a roller conveyor according to the invention are between 500 mm and 5000 mm, preferably between 1000 mm and 3000 mm, for example 2300 mm, long and have a diameter between 10 mm and 200 mm, preferably between 30 mm and 100 mm, for example 50 mm, up.
- the upper cooling device preferably has a substantially plate-like shape.
- the length of the upper cooling device is adapted to the number and the diameter of the roller ends, for the cooling of the upper cooling device is provided.
- the length of the individual cooling devices is independent, i.
- the individual upper cooling devices can also be of different lengths and thus cool a different number of roller ends.
- the width of the upper cooling device is adapted to the dimensions of the roll ends to be cooled.
- the upper cooling device is at least so wide that it completely covers the arranged at the roller ends pivot bearing in the first position. If the pivot bearings are arranged on connecting pieces arranged on the roll ends, the upper cooling device is at least so broad that it completely covers the pivot bearings arranged at the roll ends in the first position and covers the connecting pieces at least partially, preferably also completely. If these connecting pieces are designed as end caps, the upper cooling device is preferably at least so wide that it completely covers the pivot bearings and the end caps arranged at the roll ends in the first position. In the presence of two or more upper cooling devices, the width of the cooling devices is independent of each other, i. the upper cooling devices can also be of different widths.
- the upper cooling device is preferably between 10 mm and 200 mm, more preferably between 20 mm and 100 mm thick, for example 40 mm.
- the upper cooling device has a downwardly directed extension.
- the upper cooling device thus has an L-shaped cross-section in this embodiment.
- the at least one upper cooling device can, in principle, be any cooling device suitable for reaching a certain temperature.
- the at least one upper cooling device is a cooling device that is connected to a cooling circuit, by means of which a coolant is passed through the at least one upper cooling device.
- a coolant is passed through the at least one upper cooling device.
- through the upper cooling device extends a tube system through which the coolant can be passed.
- the coolant can be in particular water, which may optionally be mixed with an antifreeze.
- each individual upper cooling device is preferably connected to its own cooling circuit, which enables particularly efficient cooling.
- an insulation is arranged on the upper side of the at least one upper cooling device.
- the insulation material insulates and protects the cooling device.
- insulation material all known insulation materials are suitable.
- refractory materials with high insulation performance such as ceramics, fiber-based materials or materials based on foamed ceramics are suitable.
- the insulation may be bolted to the upper cooling device, for example.
- the insulation preferably has a projection u over the upper cooling device, wherein the insulation in the region of the supernatant is thickened in the direction of the transport rollers.
- the thickening is designed in such a way that, when the upper cooling device is in the first position, the insulation reaches as far as the transport rollers.
- the insulation in the region of the thickened supernatant has depressions with a substantially semicircular cross section. These recesses are each adapted to partially receive in the first position a portion of a transport roller.
- the number of wells in the insulation corresponds to the number of roller ends that cools the respective upper cooling device in the first position.
- the area between the insulation and the transport rollers in the first position is formed as a labyrinth seal.
- the roller conveyor according to the invention also has a lower insulation, which is arranged at least in sections below the transport rollers and has depressions, in each of which a transport roller is partially accommodated.
- a lower insulation is prevented or at least reduced that heated air flow below the transport rollers in the direction of the roll ends and can heat the attached pivot bearing and optional connectors available.
- the material for the lower insulation all known insulation materials are suitable.
- refractory materials with high insulation performance such as ceramics, fiber-based materials or materials based on foamed ceramics are suitable.
- the lower insulation is at the same time the carrier for the roll ends.
- the area between the lower insulation and the transport rollers is designed as a labyrinth seal.
- the at least one upper cooling device is designed such that it has depressions with a substantially semicircular cross-section on the underside, each of which is suitable for partially receiving a roller end in the first position.
- Such a partial reception of the roller ends in the recesses in the underside of the upper cooling device enables a particularly effective cooling of the rollers.
- the number of depressions in the bottom of the upper cooling device corresponds to the number of Roller ends, which cools the respective upper cooling device, so that each one roller end is partially received in a respective recess.
- the roller conveyor in addition to at least one upper cooling device on at least one lower cooling device for cooling a set of roller ends, which is arranged substantially parallel to the axis of rotation of the transport rollers below the set of roller ends for cooling the set of roller ends.
- the at least one lower cooling device is connected to a cooling circuit, by means of which a coolant is passed through the lower cooling device.
- the at least one lower cooling device can be formed, for example, as one or more cooling tubes or also like a plate. In a plate-like lower cooling device, preferably passes through this a tube system through which the coolant of the cooling circuit can be passed.
- the coolant can be in particular water, which may optionally be mixed with an antifreeze.
- the at least one lower cooling device can be arranged below a carrier of the roll ends or else be arranged directly below the roll ends and thus serve as a carrier.
- the at least one lower cooling device has depressions with a substantially semicircular cross section on the side facing the roller ends and is arranged below the transport rollers such that in each case one roller end is partially received in the depressions.
- the number of recesses in the lower cooling device corresponds to the number of roller ends, which cools the respective lower cooling device, so that each one roller end is partially received in a respective recess and the respective lower cooling device thus as a support for the roll ends passing through the respective lower Cooling device to be cooled serves.
- the number of lower cooling devices may differ from the number of upper cooling devices.
- a roller conveyor according to the invention may have more than one upper cooling device but only a single lower cooling device.
- the lower cooling device is preferably configured to cool a set of roll ends comprising as many roll ends as the sum of the roll ends Sets of roll ends cooled by the sum of top coolers.
- the roller conveyor has, in addition to at least one upper cooling device, at least one lateral cooling device for lateral cooling of a set of roller ends. This is preferably arranged substantially perpendicular to the axis of rotation of the transport rollers on the side of the roller conveyor for lateral cooling of a set of roller ends.
- the at least one lateral cooling device is connected to a cooling circuit, by means of which a coolant is passed through the lateral cooling device.
- the at least one lateral cooling device may be formed, for example, plate-like. In one embodiment, runs through the at least one lateral cooling device, a tube system through which the coolant of the cooling circuit can be passed.
- the coolant may be in particular water, this optionally with a
- Antifreeze can be offset.
- the number of lateral cooling devices may vary from the number of upper ones
- a roller conveyor according to the invention may have more than one upper cooling device but only one lateral cooling device.
- the lateral cooling device is preferably designed to cool a set of roller ends comprising as many roller ends as the sum of the roller end sets obtained by the sum of upper ends
- Cooling devices are cooled.
- an inventive roller conveyor in addition to the at least one upper cooling device both at least one lower cooling device and at least one lateral cooling device.
- the upper cooling device, the lower cooling device and / or the lateral cooling device are preferably made of stainless steel.
- the roller conveyor according to the invention additionally comprises means for moving the upper cooling device between the first position and the second position.
- This means may be, for example, a motor-driven mechanical component or a cylinder.
- the means for moving the upper cooling device between the first position and the second position is a cylinder, in particular a pneumatic cylinder.
- the invention relates to a method for changing a transport roller of a roller conveyor according to the invention, the roller end is cooled by an upper cooling device, wherein the subsequent steps are carried out in the order given:
- the first and the fourth step of the method can be done manually or by machine. By mechanically moving the upper cooling device from the first position to the second position, this is done for example by means of a motor-driven mechanical component or a cylinder.
- the first step and the fourth step of the method by means of a motor with position control or by means of a pneumatic cylinder.
- the invention also relates to a bending device, at least comprising a heated bending chamber and a roller conveyor according to the invention.
- the bending device according to the invention has a bending chamber in which a first bending mold and a laterally offset second bending mold are arranged.
- the roller conveyor according to the invention arranged in the bending device is preferably suitable for transporting a disc into the bending chamber to a position below the first bending mold and a row of roller ends of the roller conveyor is in the heated one Bending chamber arranged.
- an inventive roller conveyor can also be suitable for transporting the disc out of the bending chamber.
- the row of roller ends of the roller conveyor arranged in the heated bending chamber corresponds to the sum of the sets of roller ends passing through the at least one upper cooling device and optionally also through at least one lower cooling device and / or at least a side cooling device to be cooled. That is, the roll ends disposed in the heated bending chamber are cooled by the at least one upper cooling device.
- the roller ends arranged in the heated bending chamber are additionally cooled by at least one lower cooling device and / or at least one lateral cooling device.
- a bending device according to the invention may for example be a bending device as disclosed in WO 2017/178733 A1, wherein instead of the roller conveyor described in WO 2017/178733 A1 a roller conveyor according to the invention is used.
- the invention also relates to a method for bending a disc, wherein the disc is transported by means of a roller conveyor according to the invention in a bending chamber heated to bending temperature and the disc is bent in the bending chamber.
- the bending chamber used in this method preferably has a first bending shape and a laterally offset second bending shape, and the pane is transported by the roller conveyor according to the invention into the bending chamber into the position below the first bending shape.
- the transport of the disc in the bending chamber in the transport of the disc within the bending chamber, in particular in a position below a bending mold includes.
- the invention extends to the use of a bent by means of a bending process according to the invention disc in vehicles, preferably motor vehicles, trucks, buses, particularly preferably as front, rear, roof or side window in vehicles.
- vehicles preferably motor vehicles, trucks, buses, particularly preferably as front, rear, roof or side window in vehicles.
- Figure 1 is a perspective view of a detail of an inventive
- FIG. 2 shows a perspective view of a section of a further embodiment of a roller conveyor according to the invention
- FIG. 3 shows a perspective illustration of a section of a further embodiment of a roller conveyor according to the invention
- FIG. 4 is a perspective view of an upper cooling device
- FIG. 5 shows a perspective view of an upper cooling device
- FIG. 6A shows a section of a cross section through a device according to the invention
- FIG. 6B shows a detail of a cross section through an inventive device
- FIG. 7 shows a detail of a cross section through a further embodiment of a roller conveyor according to the invention in the first position
- FIG. 8 shows a detail of a cross section through an embodiment of a roller conveyor according to the invention along the pivot bearing, FIG.
- FIG. 9 shows a detail of a cross section through a further embodiment of a roller conveyor according to the invention along the pivot bearing, FIG.
- FIG. 10 shows a detail of a cross section through a further embodiment of a roller conveyor according to the invention along the pivot bearing
- FIG. 1 1 shows a detail of a cross section through a further embodiment of a roller conveyor according to the invention in the first position
- Figure 12 shows a detail of a cross section through a further embodiment of a roller conveyor according to the invention along the pivot bearing
- Figure 13 is a schematic representation of a cross section of an embodiment of a bending device according to the invention.
- FIG. 1 shows a perspective view of a section of a roller conveyor 1 according to the invention.
- a multiplicity of transport rollers 2 are arranged next to one another in the transport direction t.
- the transport rollers 2 have roller ends 3, on which in the embodiment shown in Figure 1, connecting pieces in the form of end caps 4 and Rotary bearings 5 are arranged.
- the transport rollers are made of ceramic, for example, and the end caps 4 and pivot bearings 5 are made of stainless steel, for example. But it is also possible that the pivot bearing 5 are arranged on a connector other than an end cap 4 or directly to the roller ends 3, that is, that the transport rollers 2 have no end caps 4.
- the roller conveyor 1 comprises two upper cooling devices 6 for cooling respectively one set 7 of roller ends 3.
- the sets 7 of roller ends which are cooled by the two upper cooling devices each comprise six in the embodiment shown in FIG Roller ends 3.
- the upper cooling devices 6 each have an upper side 6a, an oppositely disposed lower side 6b and a peripheral side surface 6c.
- FIG. 1 shows an upper cooling device 6 in the first position (marked A in FIG. 1), in which the upper cooling device 6 is parallel to the rotation axis r of the transport rollers 2 above the set 7 of roller ends 3 for cooling the roller ends 3 is arranged. In this first position, the bottom 6b of the cooling device 6 faces the set 7 of roll ends.
- the second cooling device 6 shown in FIG. 1 is in the second position (marked B in FIG.
- the two upper cooling devices 6 have a plate-like structure, the upper cooling devices 6 having a downwardly directed extension 6d at the portion of the side edge 6c facing away from the roller ends in the first position A.
- the upper cooling devices 6 thus have an L-shaped cross section in this embodiment.
- the two upper cooling devices 6 are pivotally attached to a respective joint rod 25.
- FIG. 2 shows a perspective view of a section of a further embodiment of a roller conveyor 1 according to the invention.
- the roller conveyor 1 differs from the roller conveyor 1, the detail of which is shown in FIG. 1 only in that on the upper sides 6a of the two upper cooling devices 6 each have an insulation 8 is attached.
- the insulation 8 in each case has a protrusion u, the supernatant being thickened in the direction of the transport rollers 2 and having six recesses 9 with a substantially semicircular cross section, which are suitable for partially receiving a transport roller 2 in the first position A.
- 3 shows a perspective view of a section of a further embodiment of a roller conveyor 1 according to the invention.
- roller conveyor 1 differs from the roller conveyor 1, the detail of which is shown in FIG. 2 only in that the roller conveyor 1 has two lateral cooling devices 13 which are plate-like.
- the coolant inlet 24a and the coolant outlet 24b, via which the upper cooling device 6 can be connected to a cooling circuit, are also shown.
- the embodiment of the roller conveyor 1, the detail of which is shown in Figure 3, has no lower cooling device 11 and it is the carrier 14, which supports the pivot bearing 5 shown.
- a carrier 14 can for example also act as a cooling water leading cooling tube.
- FIGS. 4 and 5 show perspective view of an upper cooling device 6 from different angles.
- the upper cooling device 6 shown in FIGS. 4 and 5 is plate-shaped and has an upper side 6a, a lower side 6b and a side edge 6c extending therebetween.
- the upper cooling device 6 has an extension 6d, so that the cross section of the upper cooling device 6 is L-shaped.
- the coolant inlet 24a and the coolant outlet 24b are also shown in FIG. 4 and the flow direction of the coolant through the upper cooling device 6 is indicated by arrows.
- the upper cooling device 6 shown in Figures 4 and 5 is pivotally mounted on a hinge rod 25.
- FIG. 6A shows a section of a cross section through an embodiment of a roller conveyor 1 according to the invention in the first position A.
- the cross section runs through a transport roller 2 along its axis of rotation r.
- an end cap 4 is fixed, on which a pivot bearing 5 is arranged.
- the end cap 4 is optional, the pivot bearing 5 can be arranged via an alternative connector or directly to the roller end 3.
- the transport roller 2 is for example made of ceramic and the end cap 4 and the pivot bearing 5 are made of stainless steel.
- the pivot bearing 5 rests on a support 14 and is supported by this from below.
- the rolling end 3 is cooled by an upper cooling device 6, the upper cooling device 6 having an L-shaped cross section.
- the upper cooling device 6 completely covers the end cap 4 and the rotary bearing 5 arranged thereon in the embodiment shown in FIG. 6A.
- the upper cooling device is made, for example, from stainless steel and connected to a cooling circuit (not shown in FIG. 6A).
- the upper cooling device 6 is at a Articulated rod 25 pivotally mounted (attachment not shown in Figure 6A).
- the transport roller 2 is partially received in a recess 9 in the insulation 8 with a substantially semicircular cross-section.
- the roller conveyor 1 has a lateral cooling device 13, which is arranged laterally from the roller end 3. This consists for example of stainless steel and is connected to a coolant circuit (not shown in Figure 6A).
- FIG. 6B differs from FIG. 6A only in that the upper cooling device 6 is pivoted upwards by the angle a.
- FIG. 7 shows a section of a cross section through a further embodiment of a roller conveyor 1 according to the invention in the first position A.
- the cross section runs through a transport roller 2 along its axis of rotation r.
- the configuration of the roller conveyor 1 differs from that of the roller conveyor 1, whose cross-section is shown in Figure 6A, only to the extent that an additional insulation 26 below the transport roller 2 opposite from the projection u and adjacent to the carrier 14 is arranged.
- the insulation 26 has a recess 27 with a substantially semicircular cross-section, in which the transport roller 2 is partially received. It is also possible that the insulation 26 also extends below the support 14 (not shown in FIG. 7).
- FIG. 8 shows a section of a cross section through a roller conveyor 1 according to the invention along the pivot bearing 5. This corresponds to a cross section along the section line X'-X of FIG. 6A.
- the pivot bearings 5 are arranged around the end caps 4 and are supported by the carrier 14. From above, the pivot bearing 5 and the end caps 4 are cooled by an upper cooling device 6, on whose upper side 6a an insulation 8 is arranged. But it is also possible that the pivot bearing 5 have other connectors than the end caps 4 or are arranged directly on the roller ends 3, i. that the transport rollers 2 have no end caps 4.
- FIG. 9 shows a detail of a cross section through a further embodiment of a roller conveyor 1 according to the invention along the pivot bearing 5. whose section of a cross-section is shown in FIG. 9 differs from the embodiment whose section of a cross-section is shown in FIG. 8 only in that below the carrier 14 a lower cooling device 11 is arranged.
- Figure 10 shows a section of a cross section through a further embodiment of a roller conveyor 1 according to the invention along the pivot bearing 5.
- the lower cooling device 11 has, on the side facing the rotary bearings 5, recesses 12 with a substantially semicircular cross section into which the pivot bearings 5 and the end caps 4, i. the roll ends 3, partially received.
- FIG. 11 shows a detail of a cross section through an embodiment of a roller conveyor 1 according to the invention in the first position A.
- the cross section runs through a transport roller 2 along its axis of rotation r.
- an end cap 4 is fixed, on which a pivot bearing 5 is arranged.
- the end cap 4 is optional, the pivot bearing 5 can also be arranged via an alternative connector or directly to the roller end.
- the transport roller 2 is for example made of ceramic and the end cap 4 and the pivot bearing 5 are made of stainless steel.
- the rolling end 3 is cooled by an upper cooling device 6, the upper cooling device 6 having an L-shaped cross section.
- the upper cooling device 6 completely covers the end cap 4 and the pivot bearing 5 arranged thereon in the embodiment shown in FIG. 11.
- the upper cooling device 6 has indentations 10 on the underside 6b with a substantially semicircular cross section into which the pivot bearings 5 and the end caps 4, ie the roller ends 3, are partially received.
- the upper cooling device 6 is made of stainless steel, for example, and connected to a cooling circuit not shown in FIG. 11.
- the upper cooling device 6 is pivotally mounted on a hinge rod 25 (attachment not shown in Figure 11).
- the transport roller 2 is partially received in a recess 9 in the insulation 8 with a substantially semicircular cross-section.
- the roller conveyor 1 has a lateral cooling device 13 which is laterally is arranged from the roll end 3. This consists for example of stainless steel and is connected to a coolant circuit (not shown in Figure 11).
- a lower cooling device 11 is disposed below the pivot bearing 5 and supports the pivot bearing 5.
- the lower cooling device 11 has on the pivot bearings 5 side facing recesses 12 having a substantially semicircular cross section, in which the pivot bearing 5 and the end caps 4, ie the Roll ends 3, partially recorded.
- the roller conveyor 1 has a lower insulation 26.
- the transport roller 2 is partially received in a recess 27 in the insulation 26 having a substantially semicircular cross-section.
- the lower cooling device 11 and the lateral cooling device 13 may also be integrally formed in an alternative embodiment.
- FIG. 12 shows a section of a cross section through a further embodiment of a roller conveyor 1 according to the invention along the pivot bearing 5. This corresponds to a cross section along the section line X'-X of FIG. 11.
- FIG. 13 shows a simplified schematic representation of an embodiment of a bending device 16 according to the invention in a cross-sectional view.
- the device 16 comprises a bending zone 17 for bending disks 15, a preheating zone 30 arranged laterally of the bending zone 17 with a heating device for heating the disks 15 to the bending temperature, which is not shown in detail in FIG. 13, as they are shown in the figures the bending zone 17 is located, and a laterally arranged biasing zone 31 for cooling or biasing curved discs 15.
- the biasing zone 31 is coupled to the right side of the bending zone 17.
- the preheating zone 30 and the prestressing zone 31 are arranged at an angle of 90 ° to the bending zone 17 in top view and functionally coupled to them.
- the preheating zone 30, the bending zone 17 and the prestressing zone 31 are here each spatially separate areas of the device.
- the bending zone 17 is formed in the form of a closed or closable bending chamber to the external environment.
- the bending zone 17 is for this purpose with a insulating wall 36 provided so that the interior of the bending zone 17 can be heated to a suitable for the bending operation of the discs 15 temperature (bending temperature) and maintained.
- the bending zone 17 has a heating device, which is not shown in detail in FIG.
- the slices 15 can be successively transported from the preheating zone 30 into the bending zone 17 and finally into the pretensioning zone 31.
- an inventive roller conveyor 1 is provided which comprises cylindrical transport rollers 2 for the flat support of discs 15.
- the transport rollers 2 are with their horizontally oriented axes of rotation, here for example parallel to the x-direction, actively and / or rotatably mounted.
- the transport rollers 2 in the preheating zone 30 heated to bending temperature slices 15 are each brought one after the other into a removal position 32 in the bending zone 17.
- the transport direction for the disc 15 is perpendicular to the plane of the drawing.
- the bending zone 17 has two separate bending stations 33, 33 ', wherein a first bending station 33 and a second bending station 33' are spatially offset from one another in the horizontal x-direction.
- the reference numerals refer to a respective component of the second
- Bending station 33 ' wherein components of the second bending station also no. may have, if appropriate.
- all components of the second bending station 33 ' are also referred to as "second” components, unlike the components of the first bending station 33, which are also referred to as "first” components.
- the bending stations 33, 33 'each have a vertical support 34, 34' for releasably securing a bending tool 18, 18 '.
- Each bending tool 18, 18 ' has a downwardly directed, convex contact surface 35, 35' for the flat contact of a disk 15. In a corresponding Plant pressure, the disc 15 at the respective contact surface 35, 35 'are bent.
- the two contact surfaces 35, 35 ' have for this purpose in each case an end or peripheral outer surface portion 37, 37' and an inner surface portion 38, 38 'with mutually different surface contours (surface shapes), wherein the inner surface portion 38, 38' of outer surface portion 37, 37 'completely surrounded (edged) is.
- outer surface portion 37, 37 'and inner surface portion 38, 38' of a same bending tool 18, 18 'and the contact surfaces 35, 35' of the two bending tools 18, 18 ' have different surface contours.
- the outer surface portion 37 of the contact surface 35 of the first bending tool 18 has a surface contour which corresponds to a desired edge end deflection, i. final bend, in a (e.g., strip-shaped) edge region 39 of the disk 15, i. allows such a final bend.
- the terminal edge portion 39 of the disc 15 is adjacent to a perpendicular to the two opposite disc major surfaces arranged slices (cut) edge 41 at.
- the inner surface portion 38 of the contact surface 35 of the first bending tool 18 has a surface contour which corresponds to a surface pre-bend, i. non-final bend, in a completely surrounded by the edge portion 39 inner region 40 of the disc 15 corresponds.
- the outer surface portion 37 'of the contact surface 35' of the second bending tool 18 ' has a same surface contour as the outer surface portion 37 of the contact surface 35 of the first bending tool 18 and has a surface contour corresponding to the desired Randendbiegung in the edge region 39 of the disc 15.
- the inner surface portion 38 'of the contact surface 35' of the second bending tool 18 ' has a surface contour which is a ceremoninendbiegung, i. a final or quasi-final bend, in the inner region 40 of the disc 15 corresponds.
- the first holder 34, together with the first bending tool 18, forms a first bending mold 20.
- the second holder 34 'together with the second bending tool 18' forms a second bending mold 20 '.
- the two bending stations 33, 33 ' are each provided with a suction device 42, 42' for sucking a disk 15 against the contact surface 35, 35 '.
- the contact surfaces 35, 35 ' can be provided for this purpose, for example with evenly distributed suction holes (not shown) and / or a marginal apron. By a generated Vacuum or a disk 15 can be pulled against the contact surface 35, 35 '.
- the first bending station 33 further has a blowing device 43 (not shown) through which a flowing gaseous fluid, e.g. an air flow 50, in the vertical direction through the roller conveyor 1 therethrough at the removal position 32 can be generated. In this way, a disk 15 can be lifted from the removal position 32 in the direction of the bending mold 20.
- the removal position 32 is located in the vertical direction directly below the bending tool 18 of the first bending mold 20th
- the bending station 33 further includes a pressing frame 21 (e.g., press ring) for pressing and transporting a disk 15.
- the press frame 21 is fixedly attached to an elongate carrier 44 and can be laterally displaced by moving the carrier 44 in the positive and negative x directions relative to the first and second bending molds 20, 20 '.
- the carrier 44 can be moved by a non-illustrated carrier movement mechanism along its extension direction. In this way, the pressing frame 21 in particular between a first press frame position 22 of the first bending station 33 and a second press frame position 23 of the second bending station 33 'translationally back and forth to be moved.
- the first press frame position 22 and the second press frame position 23 are here, for example, in the same horizontal plane.
- the removal position 32 is located directly below the first press frame position 22.
- the pressing frame 21 has a marginal (e.g., strip-shaped) pressing surface whose surface contour is complementary to the surface contour of the outer surface portion 37 of the bending tool 18 of the first bending mold 20.
- the upwardly facing pressing surface is suitable for pressing a resting disc 15 in the edge region 39.
- the pressing frame 21 is not formed over the entire surface, but has an inner opening, which allows a ceremoninvorbiegung of the inner portion 40 of a disc 15 deposited thereon by gravity.
- the prestressing zone 31, which is coupled laterally to the bending zone 17, has two so-called prestressing boxes 29, which are arranged offset from one another in the vertical direction.
- a respective air flow for air cooling of a disk 15 located between the two biasing boxes 29 can be generated to bias the curved disk 15.
- the biasing zone 31 is a Preload frame 28 for transporting and supporting during biasing of a curved disc 15.
- the biasing frame 28 may be laterally offset relative to the bending zone 17 by a biasing frame moving mechanism 45, which is not shown in detail, along at least one horizontal movement component.
- the biasing frame 28 may be translationally reciprocated in a horizontal plane between a second biasing frame position 46 located between both biasing boxes 29 of the biasing station 31 and a first biasing frame position 23 identical to the second pressing frame position.
- the bending zone 17 designed as a bending chamber has a door 49. In this way, the biasing frame 28 can be moved into the second press frame position 23 to receive a finished bent disk 15 and to transport it into the pretensioning zone 31. From there, the disk 15 can be removed in a simple manner and further processed.
- the transport rollers 2 which transport the disc 15 within the bending chamber 17 in each case one roller end 3 within the bending chamber 17 (roller end in Z marked area) and a roller end 3 outside the bending chamber 17 (roller end in with Y marked area) is arranged.
- a bending device 16 according to the invention shown in FIG. 13 a row of roller ends 3 is thus arranged within the bending chamber 17.
- the bending device according to the invention shown in FIG. 13 has an upper cooling device 6 for cooling the zone marked Z arranged in the bending chamber 17 roll ends 3, wherein on the upper side of the upper cooling device 5, an insulation 8 is arranged.
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18172373 | 2018-05-15 | ||
PCT/EP2019/061362 WO2019219405A1 (de) | 2018-05-15 | 2019-05-03 | Rollenförderer zum transport einer scheibe |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3793957A1 true EP3793957A1 (de) | 2021-03-24 |
Family
ID=62186248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19721289.7A Withdrawn EP3793957A1 (de) | 2018-05-15 | 2019-05-03 | Rollenförderer zum transport einer scheibe |
Country Status (6)
Country | Link |
---|---|
US (1) | US20210214264A1 (de) |
EP (1) | EP3793957A1 (de) |
CN (1) | CN110719896A (de) |
DE (1) | DE202019005831U1 (de) |
MA (1) | MA52615A (de) |
WO (1) | WO2019219405A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116354596A (zh) * | 2023-03-27 | 2023-06-30 | 信义超薄玻璃(东莞)有限公司 | 退火辊驱动装置、玻璃退火窑及退火辊预热方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5743931A (en) * | 1995-08-14 | 1998-04-28 | Libbey-Owens-Ford Co. | Glass sheet conveying and bending apparatus |
JP3316174B2 (ja) * | 1997-11-25 | 2002-08-19 | 株式会社ノリタケカンパニーリミテド | ガラスパネルの冷却方法、及びその装置 |
EP1484291B1 (de) * | 2003-06-04 | 2011-09-14 | Asahi Glass Company, Limited | Verfahren und Vorrichtung zum Biegen einer Glasscheibe mittels gebogenen Rollen |
FI20055309A (fi) * | 2005-06-15 | 2006-12-16 | Tamglass Ltd Oy | Menetelmä ja laite lasilevyjen taivuttamiseksi ja karkaisemiseksi |
FI119511B (fi) * | 2007-06-18 | 2008-12-15 | Glaston Services Ltd Oy | Menetelmä ja laite lasilevyn taivuttamiseksi ja karkaisemiseksi |
DE102010031226B4 (de) * | 2010-07-12 | 2020-11-19 | VON ARDENNE Asset GmbH & Co. KG | Substratbehandlungsanlage mit einer Transporteinrichtung |
AT514079B1 (de) * | 2013-05-21 | 2014-10-15 | Siemens Vai Metals Tech Gmbh | Verfahren und Vorrichtung zum schnellen Ausfördern von Grobblechen aus einem Walzwerk |
US9809485B2 (en) * | 2015-11-02 | 2017-11-07 | Glasstech, Inc. | Lift device for a glass processing system |
US9758421B2 (en) | 2015-11-02 | 2017-09-12 | Glasstech, Inc. | Glass sheet processing system having cooling of conveyor roller ends |
BR112018070283A2 (pt) | 2016-04-13 | 2019-01-29 | Saint Gobain | flexão de folhas de vidro |
DE102017208710A1 (de) * | 2016-09-27 | 2018-03-29 | Sms Group Gmbh | Kühlbare Ofenrolle und Verfahren zum Betrieb einer solchen |
CN106630577A (zh) * | 2016-12-07 | 2017-05-10 | 蚌埠凯盛工程技术有限公司 | 一种用于压延玻璃生产线的过渡辊台辊子轴承冷却结构 |
-
2019
- 2019-05-03 WO PCT/EP2019/061362 patent/WO2019219405A1/de unknown
- 2019-05-03 MA MA052615A patent/MA52615A/fr unknown
- 2019-05-03 EP EP19721289.7A patent/EP3793957A1/de not_active Withdrawn
- 2019-05-03 CN CN201980001270.5A patent/CN110719896A/zh active Pending
- 2019-05-03 DE DE202019005831.1U patent/DE202019005831U1/de active Active
- 2019-05-03 US US17/055,036 patent/US20210214264A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2019219405A1 (de) | 2019-11-21 |
US20210214264A1 (en) | 2021-07-15 |
CN110719896A (zh) | 2020-01-21 |
MA52615A (fr) | 2021-03-24 |
DE202019005831U1 (de) | 2022-06-02 |
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