阅读说明：本技术 用于处理工件的处理设备和方法
(Processing apparatus and method for processing workpieces
) 是由 J·伯卡特 于 2019-07-03 设计创作，主要内容包括：一种用于处理工件的处理设备,包括：处理装置,其具有壳体,在壳体中安置有处理空间。输送系统包括多个运输车,借助于其能将工件输送经过处理空间,每个运输车包括行驶机构和固定装置,行驶机构和固定装置借助连接装置耦连。在处理空间外部设有引导区域,其具有用于行驶机构的行驶空间。行驶空间通过连接通道与处理空间这样连接,即,运输车的行驶机构能在行驶空间中运动,固定装置在处理空间中被携带且连接装置穿过连接通道延伸。行驶空间通过行驶空间壳体限定,设有气体装置,使得通流气体能被输送到行驶空间且至少大部分的通流气体作为排气能被重新从行驶空间中排出,通流气体不会经过连接通道到达处理空间中。还提出了一种相应的方法。(A processing apparatus for processing a workpiece, comprising: a processing device having a housing in which a processing space is disposed. The transport system comprises a plurality of transport carriages by means of which the workpieces can be transported through the processing space, each transport carriage comprising a travel mechanism and a fixing device, the travel mechanism and the fixing device being coupled by means of a connecting device. Outside the treatment space, a guide area is provided, which has a travel space for the travel means. The travel space is connected to the treatment space by a connecting channel in such a way that the travel means of the transport carriage can move in the travel space, the fastening device is carried in the treatment space and the connecting device extends through the connecting channel. The driving space is delimited by a driving space housing, and a gas device is provided such that the gas flow can be supplied to the driving space and at least a major part of the gas flow can be discharged again from the driving space as exhaust gas, without the gas flow passing through the connecting channel into the treatment space. A corresponding method is also presented.)
1. A treatment apparatus for treating workpieces (12), in particular for painting and/or drying vehicle bodies (14), comprising:
a) a processing device (16) having a housing (18) in which a processing space (20) is arranged;
b) a transport system (34) comprising a plurality of transport carriages (40) by means of which workpieces (12) can be transported through the processing space (20), wherein each transport carriage (40) comprises a chassis (46) and a fastening device (56) for at least one workpiece (12), which are coupled to one another by means of a connecting device (62);
wherein the content of the first and second substances,
c) a guide area (70) is arranged outside the processing space (20), and the guide area is provided with a running space (72) for the running mechanism (46);
d) the travel space (72) is connected to the treatment space (20) by a connecting channel (80) such that the travel means (46) of the transport carriage (40) can be moved in the travel space (72), the fastening device (56) is carried in the treatment space (20) and the connecting device (62) extends through the connecting channel (80),
it is characterized in that the preparation method is characterized in that,
e) the driving space (72) is limited by a driving space housing (76);
f) a gas device (90) is provided, which is designed such that a flow-through gas, in particular air, can be supplied to the travel space (76) and at least a large part of the flow-through gas can be discharged from the travel space (76) as exhaust gas, without said flow-through gas reaching the treatment space (20) via the connecting channel (80).
2. Treatment plant according to claim 1, characterized in that the gas device (90) is arranged such that the throughflow gas flows through the travel space (76) with a directional component transverse to the direction of movement of the transport carriage (40).
3. Treatment plant according to claim 2, characterized in that the gas device (90) is arranged such that the throughflow gas flows through the travel space (76) with a directional component parallel to the direction of movement of the transport carriage (40).
4. Treatment apparatus according to any one of claims 1 to 3, characterized in that the travel space housing (76) has one or more gas inlets (92) and one or more gas outlets (94).
5. A treatment plant according to claim 4, characterized in that the gas device (90) is arranged such that the delivered through-flow gas has a volume flow rate Qm3s-1]Can be regulated at one or more gas inlets (92), and/or the volume flow rate Q [ m ] of the exhaust gas discharged3s-1]Can be regulated at one or more gas outlets (94).
6. The processing apparatus according to claim 4 or 5,
a) the one or more gas inlets (92) are connected to a conveying line system (96) of a conveying system (98), through which gas can flow to the gas inlets (94), the conveying system (98) having active blowing devices (104) and/or passive entry devices (106) in the conveying line system (96);
and/or
b) The one or more gas outlets (94) are connected to an outlet line system (100) of an outlet system (102), through which the exhaust gas can flow away from the gas outlets (94) and be discharged, the outlet system (102) having an active suction device (108) and/or a passive discharge device (110) in the outlet line system (100).
7. The processing apparatus according to claim 6,
a) the active insufflation device (104) includes one or more feed blowers (112);
and/or
b) The passive inlet device (106) comprises one or more inlet valve devices (114), in particular flap valves (116), by means of which the flow cross section for the gas flowing through can be varied;
and/or
c) The active suction device (108) comprises one or more exhaust blowers (118);
and/or
d) The passive outlet device (110) comprises one or more outlet valve devices (120), in particular flap valves (116), by means of which the flow cross section for the exhaust gas from the driving space (72) can be varied.
8. The processing apparatus according to claim 7,
a) the feed blowers (112) are each connected to a single gas inlet (92) or to a plurality of gas inlets (92);
and/or
b) The inlet valve devices (114) are each connected to a single gas inlet (92) or to a plurality of gas inlets (92);
and/or
c) The outlet blowers (118) are each connected to a single gas outlet (94) or to a plurality of gas outlets (94);
and/or
d) The outlet valve devices (120) are each connected to a single gas outlet (94) or to a plurality of gas outlets (94).
9. The treatment plant according to any one of claims 1 to 8, characterized in that a conditioning device (130) is provided to which the exhaust gas can be fed, wherein the conditioned gas can be fed to a fresh air supply for the treatment device (16).
10. A method for treating workpieces (12), in particular for painting and/or drying vehicle bodies (14), comprising the following steps:
the workpieces (12) are guided through the processing space (20) by means of a conveying system (34) comprising a plurality of transport carriages (40), wherein each transport carriage (40) comprises a chassis (46) and a fastening device (56) for at least one workpiece (12), which are coupled to one another by means of a connecting device (62), wherein a guide region (70) is provided outside the processing space (20), which guide region has a travel space (72) for the chassis (46), which travel space is connected to the processing space (20) by means of a connecting channel (80) in such a way that the chassis (46) of the transport carriage (40) can be moved in the travel space (72), and the fastening device (56) is carried in the processing space (20), the connecting device (62) extending through the connecting channel (80),
it is characterized in that the preparation method is characterized in that,
the driving space (72) is limited by a driving space housing (76);
a gas device (90) is provided, which is designed such that a flow-through gas, in particular air, can be supplied to the travel space (76) and at least a large part of the flow-through gas can be removed again from the travel space (76) as exhaust gas, without said flow-through gas reaching the treatment space (20) via the connecting channel (80).
11. Method according to claim 10, characterized in that the throughflowing gas flows through the travel space (76) with a directional component transverse to the direction of movement of the transport carriage (40).
12. Method according to claim 11, characterized in that the throughflowing gas flows through the travel space (76) with a directional component parallel to the direction of movement of the transport carriage (40).
13. The method according to any one of claims 10 to 12, characterized in that the travel space housing (76) has one or more gas inlets (92) and one or more gas outlets (94).
14. Method according to claim 13, characterized in that the volume flow Q [ m ] of the conveyed through-flow gas3s-1]Can be regulated at one or more gas inlets (92), and/or the volume flow rate Q [ m ] of the exhaust gas discharged3s-1]Can be regulated at one or more gas outlets (94).
15. The method according to claim 13 or 14,
a) the one or more gas inlets (92) are connected to a conveying line system (96) of a conveying system (98), through which gas can flow to the gas inlets (94), the conveying system (98) having active blowing devices (104) and/or passive entry devices (106) in the conveying line system (96);
and/or
b) The one or more gas outlets (94) are connected to an outlet line system (100) of an outlet system (102), through which the exhaust gas can flow away from the gas outlets (94) and be discharged, the outlet system (102) having an active suction device (108) and/or a passive discharge device (110) in the outlet line system (100).
16. The method of claim 15,
a) the active insufflation device (104) includes one or more feed blowers (112);
and/or
b) The passive inlet device (106) comprises one or more inlet valve devices (114), in particular flap valves (116), by means of which the flow cross section for the gas flowing through can be varied;
and/or
c) The active suction device (108) comprises one or more exhaust blowers (118);
and/or
d) The passive outlet device (110) comprises one or more outlet valve devices (120), in particular flap valves (116), by means of which the flow cross section for the exhaust gas from the driving space (72) can be varied.
17. The method of claim 16,
a) the feed blowers (112) are each connected to a single gas inlet (92) or to a plurality of gas inlets (92);
and/or
b) The inlet valve devices (114) are each connected to a single gas inlet (92) or to a plurality of gas inlets (92);
and/or
c) The outlet blowers (118) are each connected to a single gas outlet (94) or to a plurality of gas outlets (94);
and/or
d) The outlet valve devices (120) are each connected to a single gas outlet (94) or to a plurality of gas outlets (94).
18. The method according to any one of claims 10 to 17, characterized in that the exhaust gas is conveyed to a conditioning device (130) and the conditioned gas is conveyed to a fresh air supply for the treatment device (16).
19. Method according to any one of claims 10 to 18, characterized in that ambient air from the surroundings of the treatment device (16) is applied as through-flow gas.
Technical Field
The invention relates to a treatment device for treating workpieces, in particular for coating and/or drying vehicle bodies, comprising:
a) a processing device having a housing in which a processing space is disposed;
b) a transport system comprising a plurality of transport carriages by means of which workpieces can be transported through the processing space, wherein each transport carriage comprises a chassis and a holding device for at least one workpiece, which chassis and holding device are coupled to one another by means of a connecting device;
wherein the content of the first and second substances,
c) a guide area is arranged outside the processing space, and the guide area is provided with a running space for a running mechanism;
d) the travel space is connected to the treatment space by a connecting channel, so that the travel means of the transport carriage can be moved in the travel space, while the fastening device is carried in the treatment space and the connecting device extends through the connecting channel.
The invention also relates to a method for treating workpieces, in particular for painting and/or drying vehicle bodies, comprising: the workpieces are guided through the processing space by means of a transport system comprising a plurality of transport carriages, wherein each transport carriage comprises a chassis and a fastening device for at least one workpiece, which chassis and fastening device are coupled to one another by means of a connecting device, wherein a guide region is provided outside the processing space, which guide region has a chassis for the chassis, which chassis is connected to the processing space by a connecting channel, such that the chassis of the transport carriage can be moved in the chassis, the fastening device being carried in the processing space and the connecting device extending through the connecting channel.
Background
In such a treatment system, a treatment device, in particular in the form of a paint booth or a dryer, can be provided. In the painting booth, the workpieces are provided with a coating and are, for example, painted; the treatment space is in this case a coating tunnel or a painting tunnel. In the case of a dryer, the process space is correspondingly a drying tunnel.
The processing device can also be provided in the form of a mounting device and/or a control device in which the workpiece is mounted or on which a mounting operation is carried out or in which the workpiece is controlled during an ongoing production process.
The atmosphere of the process space can be diverted into the travel space by the connecting duct. In particular in the case of dryers, this atmosphere is loaded with a solvent which subsequently condenses in the usually cooler driving space and can settle on components of the conveyor system in the driving space. However, the solvent can corrode the delivery system.
In addition, the following temperatures are present in the driving space, in particular in the case of a dryer: at these temperatures, the transport technology equipment located in the driving space is undesirably subjected to high thermal loads.
DE 202017106843U 1 proposes in a treatment plant and a method of the type mentioned at the outset that the gas be supplied to the travel space in such a way that the gas always flows from the travel space into the treatment tunnel and does not return. However, this method has the significant disadvantage that dirt is carried from the travel space into the process tunnel in this way. Such dirt is in particular the abrasive particles or the lubricant of the transport system components in the driving space. DE 202017106843U 1 also suggests that the driving space has its own housing, to which the gas under overpressure is supplied. But then also a relatively large gas volume has to be displaced. Furthermore, gates must be provided at the ends of the travel space in order to maintain the pressure in the travel space even when the transport vehicle is moving in and out; however, this gate is structurally complex only due to the required travel space cross section.
Disclosure of Invention
It is therefore an object of the present invention to provide a processing device and a method of the type mentioned at the outset in view of the above-mentioned concepts.
This object is achieved in a processing device of the type mentioned at the outset in that:
e) the driving space is limited by the driving space shell;
f) a gas device is provided, which is designed such that a flow-through gas, in particular air, can be supplied to the travel space and at least a large part of the flow-through gas can be removed again from the travel space as exhaust gas, without said flow-through gas reaching the treatment space via the connecting channel.
In this way, the flow through the travel space is achieved, whereby undesired components are discharged and at the same time a cooling effect can be achieved. At the same time, it is avoided that air can pass from the driving space into the treatment space.
In this case, it is particularly advantageous if the gas device is arranged such that the gas flowing through flows through the travel space with a directional component transverse to the direction of movement of the transport carriage.
It may additionally be advantageous if the gas device is arranged such that the gas flowing through flows through the travel space with a directional component parallel to the direction of movement of the transport carriage. This corresponds to an oblique flow guidance with respect to the direction of movement of the transport carriage.
The travel space housing has one or more gas inlets and one or more gas outlets. A corresponding plurality of inlets and outlets is advantageous here because the travel space can be flowed through by the gas in a targeted and controlled manner.
Preferably, the gas device is designed such that the volume flow Q [ m ] of the gas conveyed through it is3s-1]Can be regulated at one or more gas inlets, and/or the volume flow rate qm of the exhaust gas discharged3s-1]Can be regulated at one or more gas outlets.
Advantageously, the first and second electrodes are arranged such that,
a) one or more gas inlets are connected to a conveying line system of a conveying system, through which a through-flow gas can flow to the gas inlets, the conveying system having active blowing devices and/or passive admission devices in the conveying line system;
and/or
b) The one or more gas outlets are connected to an outlet line system of an exhaust system, through which the exhaust gas can flow away from the gas outlets and be discharged, in which the exhaust system has an active suction device and/or a passive exhaust device.
It is advantageous here that,
a) active insufflation devices include one or more feed blowers;
and/or
b) The passive inlet device comprises one or more inlet valve devices, in particular flap valves, by means of which the flow cross section/flow cross-sectional area for the gas flowing through can be varied;
and/or
c) Active suction devices include one or more exhaust blowers;
and/or
d) The passive outlet device comprises one or more outlet valve devices, in particular flap valves, by means of which the flow cross section for the exhaust gas from the passenger space can be varied.
If a plurality of feed blowers and/or a plurality of discharge blowers are provided, it is at the same time ensured that the gas installation remains in operation when one or possibly also a plurality of blowers are shut down, since the remaining operating blowers can compensate for the one or more damaged blowers. For this purpose, the remaining blowers are subsequently operated at correspondingly higher power.
Advantageously, the first and second electrodes are arranged such that,
a) the feed-in blowers are respectively connected with only one gas inlet or a plurality of gas inlets;
and/or
b) The inlet valve devices are respectively connected with only one gas inlet or respectively connected with a plurality of gas inlets;
and/or
c) The discharge blower is respectively connected with only one gas outlet or a plurality of gas outlets;
and/or
d) The outlet valve devices are each connected to a single gas outlet or to a plurality of gas outlets.
For efficient resource utilization, it is advantageous to provide a control device to which the exhaust gas can be supplied, wherein the controlled gas can be supplied to a fresh air supply for the treatment device.
In a method of the type mentioned at the outset, the above object is achieved in that,
the driving space is limited by the driving space shell;
a gas device is provided, which is designed such that a flow-through gas, in particular air, can be supplied to the travel space and at least a large part of the flow-through gas can be removed again from the travel space as exhaust gas, without said flow-through gas reaching the treatment space via the connecting channel.
The advantages of the described and subsequent measures correspond to the advantages described in connection with the processing device.
It is accordingly advantageous if the gas flows through the travel space with a directional component transverse to the direction of movement of the transport carriage.
The throughflow gas additionally flows through the travel space with a directional component parallel to the direction of movement of the transport carriage.
Preferably, the driving space housing has one or more gas inlets and one or more gas outlets.
The volume flow rate qm of the conveyed gas flowing through3s-1]Can be regulated at one or more gas inlets (92), and/or the volume flow rate Q [ m ] of the exhaust gas discharged3s-1]Can be regulated at one or more gas outlets (94).
It is also advantageous that,
a) one or more gas inlets are connected to a conveying line system of a conveying system, through which a through-flow gas can flow to the gas inlets, the conveying system having active blowing devices and/or passive admission devices in the conveying line system;
and/or
b) The one or more gas outlets are connected to an outlet line system of an exhaust system, through which the exhaust gas can flow away from the gas outlets and be discharged, in which the exhaust system has an active suction device and/or a passive exhaust device.
It is furthermore correspondingly advantageous that,
a) active insufflation devices include one or more feed blowers;
and/or
b) The passive inlet device comprises one or more inlet valve devices, in particular flap valves, by means of which the flow cross section/flow cross-sectional area for the gas flowing through can be varied;
and/or
c) Active suction devices include one or more exhaust blowers;
and/or
d) The passive outlet device comprises one or more outlet valve devices, in particular flap valves, by means of which the flow cross section for the exhaust gas from the passenger space can be varied.
It is furthermore advantageous that,
a) the feed-in blowers are respectively connected with only one gas inlet or a plurality of gas inlets;
and/or
b) The inlet valve devices are respectively connected with only one gas inlet or respectively connected with a plurality of gas inlets;
and/or
c) The discharge blower is respectively connected with only one gas outlet or a plurality of gas outlets;
and/or
d) The outlet valve devices are each connected to a single gas outlet or to a plurality of gas outlets.
Advantageously, the exhaust gas is supplied to a control device, and the controlled gas is supplied to a fresh air supply for the treatment device.
Ambient air from the surroundings of the treatment device is used as the through-flow gas. Since the ventilation gas does not reach or only reaches a small portion of the process space, the ambient air does not have to be cleaned or otherwise purified.
Drawings
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Shown in the figure
Fig. 1 schematically shows a vertical cross section of a treatment plant with a treatment space and a guide space arranged outside the treatment space, the guide space having a travel space for a transport system, wherein a first embodiment of a gas device for generating a flow through the travel space is shown, through which gas device a ventilation gas can flow into the travel space and out of the travel space as an exhaust gas;
fig. 2 shows a perspective view of the travel space region of the treatment plant in a section along the section line IV-IV in fig. 1;
FIG. 3 shows a section of the treatment apparatus along the section line III-III in FIG. 1;
FIGS. 4 to 8 show sections of the processing apparatus along the section line IV-IV in FIG. 1, respectively, including different embodiments of the gas arrangement;
fig. 9 shows a detail of the section shown in fig. 3, wherein a control device for the exhaust air from the driving space is shown;
fig. 10 shows a cross section of the treatment device corresponding to fig. 1, including a modified travel space;
fig. 11 shows a variant of the travel space housing.
Detailed Description
The drawing schematically illustrates an apparatus, generally designated 10, for processing a workpiece 12, such as shown as a vehicle body 14.
The treatment plant 10 comprises a treatment apparatus 16 having a housing 18 in which a treatment space 20 is arranged, which is designed as a treatment tunnel 22 and comprises two tunnel walls in the form of side walls 24 and two further tunnel walls in the form of a roof 26 and a tunnel floor 28. In a preferred and exemplary embodiment described herein, the treatment device 16 is a dryer 30 in which the treatment tunnel 22 predetermines a drying tunnel 32. However, the processing device 16 can also be, for example, a painting device in which the workpiece 14 is painted and in particular painted automatically by means of a painting robot or manually.
The work-pieces 12 are conveyed through the process tunnel 22 of the processing apparatus 16 by a conveyor system 34. The processing device 16 runs continuously and accordingly has an input 36, which can be seen in fig. 4 to 9, at the end face and an output 38, which can be seen only in fig. 3, at the opposite end face. However, the treatment space can also be understood to be a treatment tunnel 22 or a drying tunnel 32, which is designed as a batch treatment system and may have only one single inlet, via which the workpieces 12 are conveyed into the treatment space 20 and are also conveyed out of it again after treatment.
The transport system 34 includes a plurality of transport carts 40 on which the workpieces 12 are transported. The carriage 40 moves on a track system 42. In a variant that is not shown in particular, the transport carriage 40 can be designed as a free-running transport carriage in the sense of a driverless transport system, which is known to the person skilled in the art as a so-called driverless transport system (FTS).
The present rail system 42 is designed as a monorail and comprises a support rail 44 on which the carriage 40 moves and which in the present exemplary embodiment is designed as an I-profile known per se, but can also have another cross-section. The rail system 42 can also be multi-rail, in particular dual-rail. The support rail 44 is connected to the base and is anchored to the base, in this case to the base of the processing device 10.
Each carriage 40 comprises a running gear 46 and a drive system 48, which in the present exemplary embodiment comprises a drive roller 50, which rolls on the support rail 44 and can be driven by means of a drive motor 52. The carriages 40 can be driven independently of one another in this manner. In the present embodiment, the drive roller 50 rolls on the upper side of the support rail 44. In a variant, the drive roller 50 can also engage laterally on the support rail 44.
In addition to or instead of the transport carriages 40 described here, each having its own drive system 48, it is also possible if appropriate to provide further transport carriages which are driven by a central drive system. Such a central drive system may be formed, for example, by a chain block or the like. The transport carriage 40 described here can also be driven and moved correspondingly independently of the other drives.
In order to prevent the transport carriage 40 from tipping in or transversely to the transport direction, a support system 54 is provided with support rollers which bear against the support rails 44 and prevent a corresponding tipping of the transport carriage 40 in a manner known per se.
The transport carriage 40 comprises a fastening device 56, on which the workpiece 12 or a corresponding workpiece carrier for the workpiece 12 can be fastened. For fixing the body 14, the fixing device 56 comprises in the present exemplary embodiment a support profile 58 with a bearing pin 60, which interacts in a manner known per se with a counter element on the body 14, so that the body 14 can be fastened to the fixing device 56. The fastening device 56 can also have a plurality of such sets of bearing pins 60, which are adapted to different vehicle bodies 14 of different sizes and designs, so that the fastening device 56 can be flexibly used for different vehicle body types. The fastening device 56 thus receives the body 14 directly, and the body 14 is not fastened to a workpiece carrier, for example a skid, known per se.
The chassis 46 of the transport carriage 40 is coupled to the fastening device 56 by means of a connecting device 62. In the present exemplary embodiment, the connecting device 62 comprises at least one upwardly pointing strut 64, wherein two struts 64 are provided for stability reasons; each existing brace 64 couples the travel mechanism 46 of the transport cart 40 with the fixture 56.
The carriage 40 can be designed such that it can be moved over a turnaround section of the support rail 44. For this purpose, the chassis 46 of the transport carriage 40 can be designed in particular with a preceding chassis unit 66 and a following chassis unit 68 which are articulated to one another. In this case, the front travel unit 66 and the rear travel unit 68 can carry in each case one drive roller 50 with a drive motor 52.
If the transport carriage 40 is designed for cornering, the coupling between the travel means 46 and the fastening device 56 by means of the connecting device 62 can also be provided in such a way that a corresponding cornering travel is possible. For this purpose, the strut 64 is designed, for example, as a hinge lever, which is realized by a hinge, and the fastening device 56 can be pivoted about a vertical pivot axis relative to the chassis 46 of the transport carriage 40. The front travel unit 66 and the rear travel unit 68 can be connected to one strut 64 each or to one hinge rod each.
The treatment device 16 and the transport system 34 are matched to one another in such a way that only one part of the transport system 34 is moved in the treatment space 20, i.e. in the treatment tunnel 22, while the other part of the transport system 34 is moved outside the treatment space 20.
For this purpose, outside the treatment space 20, a guide region 70 is provided, which has a travel space 72 likewise arranged outside the treatment space 20, in which the rail system 42 is arranged and in which the travel means 46 of the respective transport carriage 40 move. The process space 20 and the guide area 70 or the travel space 72 are separated above by a partition 74.
In fig. 1, 2 and 11, a vertical arch wall is visible between the tunnel floor 28 and the installation floor, which arch wall however does not carry its own reference numerals.
The arrangement of the guide region 70 "outside" the process space 20 is to be understood in such a way that a structural separation between the process space 20 and the guide region 70 is provided by the described partition 74.
In the present exemplary embodiment, this partition 74 is a section 28a of the tunnel base 28, wherein the guide region 62 with the travel space 64 is arranged below this section 28a of the tunnel base 28. In the present exemplary embodiment, the tunnel floor 28 as a whole has a curved course and laterally next to the section 28a two sections 28b which are offset downward with respect to the section 28a and are connected at their edges pointing toward the center of the treatment chamber 20 to the opposite edges of the section 28a by a vertical section 28c of the tunnel floor 28.
In this embodiment, the travel space 72 overlaps the treatment space 20 in a cross section with an upper region, and a lower region of the travel space 72 is arranged at a height level below the section 28b of the tunnel floor 28.
In a variant, the tunnel floor 28 can also be flat, with the corresponding section 28a of the tunnel floor 28 then forming the partition 74, wherein this section 28a then transitions directly and in the same horizontal plane in the lateral direction into the section 28c, without the vertical section 28b being present. The driving space 72 is then arranged completely at a height level below the tunnel floor 28.
The driving space 72 is delimited, i.e. at least partially delimited, by a driving space housing 76. In the present exemplary embodiment, the travel space housing 76 comprises the vertical section 28c of the tunnel floor 28 and its section 28a, i.e. the partition 74 to the treatment space 20. Furthermore, the travel space housing 76 also comprises two further housing walls 78 which extend in the longitudinal direction of the treatment space 20 and downwardly from the tunnel floor 28. In the exemplary embodiment shown in fig. 1 to 10, the further housing wall 78 approximately forms a downward continuation of the vertical section 28c of the tunnel floor 28. The travel space housing 76 may have a separate housing bottom; in the embodiment shown here, the corresponding section of the bottom of the device takes over this task.
At the end of the processing device 16 on the tunnel entrance 36 or the tunnel exit 38, the travel space housing 76 is open. In one variant, a lock can also be provided there; in each case, it must be possible to drive the vehicle 40 into the travel space 72 at the tunnel entrance 36 and to drive it out of the travel space 72 again at the tunnel exit 38. In principle, the travel space housing 76 need not be designed to be flow-tight or fluid-tight anyway, wherein this can be provided as a variant.
The travel space 72 is connected to the process space 20 via a connecting passage 80 in the partition wall 74. The connecting channel 80 is complementary to the connecting device 62 of the transport carriage 40 and the connecting device 62 extends through the connecting channel 80 in such a way that the fastening device 56 with the workpieces 12 is located in the treatment space 20 and the chassis 46 of the transport carriage 40 is located in the travel space 72.
In the present exemplary embodiment, the connecting channel 80 is designed as a straight line and as a straight through slot or through slot, which extends between the tunnel inlet 36 and the tunnel outlet 38 in the partition 74. The connecting channel 80 can also be curved, i.e. in cross section, for example, designed as a labyrinth, wherein the struts 64 are then designed to be complementary thereto.
Via the connecting channel 80, on the one hand the tunnel atmosphere loaded with pollutants, such as solvents, can flow out of the treatment chamber 20 into the travel chamber 72, and on the other hand the atmosphere can pass from the travel chamber 72, which can be loaded with, for example, the degraded particles or lubricant of the transport technology equipment in the travel chamber 72, into the treatment chamber 20. In order to prevent or at least alleviate this, shielding means 82 are furthermore provided.
The shielding device 82 comprises in the present exemplary embodiment a scale-like seal 84, in which a plurality of sealing lamellae 86 are arranged one above the other in the longitudinal direction of the treatment space 20 in such a way that they cover the connecting channel 80 of the partition 74. The sealing foil 86 is in practice made of a flexible metal sheet or a flexible plastic resistant to temperature changes. The sealing foil 86 preferably has a width, i.e. an extension in the longitudinal direction of the process space 20, of about 10cm to 20cm, preferably 15cm, independently of the material.
As shown in fig. 3, the carriage 40 carries an adjustment device 88 by means of which the sealing foil 86 can be moved when the carriage 40 is moved by the handling device 16. Here and during the passage of the connecting device 62, i.e. in particular in the present exemplary embodiment of the strut 64, the sealing foil 86 is moved via the connecting channel 80 from its sealing position on the connecting channel into an open position in which it can be passed by the carriage 40.
If the transport carriage 40 is thus moved into the processing device 16, the hinge rod 64 reaches the connecting channel 80, wherein the adjusting device 88 presses the sealing foil 86 out of the way, so that a corresponding passage window between the travel space 72 and the processing space 20 is always provided only in the region of the hinge rod 64.
In connection with sealing foils, the person skilled in the art is familiar with the generic term "foil indicator (lamellenanufweiser)". Such foil indicators are known and are used to move the foil sideways from a scale-like seal, in particular at a slot sealed thereby. The adjusting device 88 is accordingly designed according to the type of the foil indicator.
A gas device 90 is provided, which is designed such that a flow-through gas, in particular air, can be supplied to the travel space 72 and at least a large part of the flow-through gas can be removed again from the travel space 72 as exhaust gas, and this flow-through gas, i.e. the large part of the flow-through gas, does not pass through the connecting channel 80 into the treatment space 20. Ideally, the gas flowing through is discharged completely as exhaust gas from the driving space 72. At least only a partial volume fraction of the gas flowing through is allowed to pass from the travel space 72 into the process space 20, without this volume fraction causing loss of process results or a reduction in quality in the process space 20.
In this case, it cannot be avoided that, independently of the local pressure and flow ratios in the travel space 72, a part of the throughflow gas escapes upwards through the connecting channel 80 into the process space 20. As mentioned, however, this is not the case for the majority of the conveyed throughflow gas.
On the one hand, the travel space 72 can be cooled in comparison with the temperature conditions in the treatment space 20 in such a way that the transport technology equipment and in particular the transport carriage 40 located in the travel space 72 are not subjected to a thermal load or in any case to a smaller thermal load when it travels through the travel space 72 than without the gas supply device 90. The flow-through gas is thus a cooling gas in this case or is used as a cooling gas in this case.
On the other hand, aggressive or otherwise undesirable components which may escape from the process space 20 through the connecting duct 80 into the travel space 72 as a result of atmospheric escape and which can likewise be transported by the transport technology equipment there can be removed from the travel space 72, since they are flushed away by the ventilation gas and are discharged with the ventilation gas from the travel space 72. The ventilation gas is therefore a purge gas in this case or is used as a purge gas in this case.
The gas device 90 is arranged such that the gas flowing through flows through the travel space 72 with a directional component transverse to the direction of movement of the transport carriage 40.
The travel space case 76 has: one or more gas inlets 92, also referred to as gas inlets 92; and one or more gas outlets 94, also referred to as gas outlets 94. In the presently described embodiment, a plurality of air inlets 92 and a plurality of air outlets 94 are provided. If only a single air inlet 92 and/or a single air outlet 94 is provided, it can be designed, for example, as a slotted opening which exceeds the length of the travel space 72. The air distribution in the driving space 72 can take place in this case, for example, by means of adjustable sliding metal sheets in the driving space 72 or at the slot openings.
Gas inlet 92 is connected to a conveying line 96 of a conveying system 98, through which a gas flow can flow to gas inlet 94. The air outlet 94 is connected to an outlet line system 100 of an outlet system 102, via which the exhaust air can flow away and be discharged from the air outlet 94.
The conveying system 96 is concerned with the throughflow of ambient air from the treatment device 16, which in this case is therefore intake air, the exhaust gas being predominantly exhaust air. For this purpose, the supply line system 96 is connected on the supply side to the environment of the treatment device 16 by means of one or more inlets in a flow-technological manner. The ambient air used does not have to be filtered or otherwise conditioned.
The gas device 90 is designed such that the volume flow Q m of the gas to be conveyed is greater3s-1]Can be regulated at one or more gas inlets 92, and/or the volume flow Q m of exhaust gas discharged3s-1]Can be regulated at one or more gas outlets 94.
To this end, the conveying system 98 comprises an active blowing device 104 and/or a passive intake device 106 in the conveying line system 96 and/or — that is, additionally or alternatively, the discharge system 102 comprises an active suction device 108 and/or a passive discharge device 110 in the discharge line system 100. The passive inlet means 106 and the passive outlet means 110 are shown in fig. 5 and 7.
Active insufflation device 104 includes one or more feed blowers 112. In this case, the existing feed blower 112 can be connected to a single gas inlet 92 or to a plurality of gas inlets 92, respectively, for which purpose the supply line system 96 is correspondingly designed to be complementary. In both extreme cases, a single feed blower 112 for all the intake ports 92 can therefore be provided on the one hand or each intake port 92 can be assigned its own feed blower 112 on the other hand.
The passive inlet device 106 comprises one or more inlet valve devices 114, by means of which the flow cross section for the gas flowing through can be varied. Such an inlet valve arrangement 114 is shown as a flap valve 116. The existing inlet valve arrangements 114 can be connected to a single inlet port 92 or to a plurality of inlet ports 92, respectively, for which purpose the supply line system 96 is correspondingly designed to be complementary. In both extreme cases, it is therefore possible to provide only one inlet valve arrangement 114 for all inlet openings 92 on the one hand or to assign a separate inlet valve arrangement 114 to each inlet opening 92 on the other hand.
The active suction device 108 includes one or more exhaust blowers 118. In this case, the existing outlet blower 118 can be connected to a single outlet opening 94 or to a plurality of outlet openings 94, respectively, for which purpose the outlet-line system 100 is correspondingly designed to be complementary. In both extreme cases, a single discharge blower 118 for all air outlets 94 may therefore be provided on the one hand or an individual discharge blower 118 may be assigned to each air outlet 94 on the other hand.
The passive outlet device 110 comprises one or more outlet valve devices 120, by means of which the flow cross section for the exhaust gas from the travel space 72 can be varied. This outlet valve arrangement 120 is also shown as a flap valve 116. The existing outlet valve arrangements 120 can be connected to a single outlet opening 94 or to a plurality of outlet openings 94, respectively, for which purpose the outlet line system 100 is correspondingly designed to be complementary. In both extreme cases, a single outlet valve arrangement 120 for all outlet openings 94 can therefore be provided on the one hand, or an individual outlet valve arrangement 120 can be assigned to each outlet opening 94 on the other hand.
As explained at the outset, a safety system is simultaneously established in a plurality of feed blowers 112 and/or a plurality of discharge blowers 118, since the gas installation 90 remains in normal operation when one or possibly also a plurality of existing blowers 112, 118 are shut down, since the remaining operating blowers 112, 118 can compensate for the one or more damaged blowers 112, 118. For this purpose, the remaining blowers 112, 118 are subsequently operated at correspondingly higher power.
In the embodiment according to fig. 1 to 4, the conveying system 98 comprises a separate feed blower 112 for each air inlet 92. The conveying-line system 96 includes separate conveying lines 122 there between each feed blower 112 and the respectively associated gas inlet 92. There is no passive entry device 106.
In a corresponding manner, the exhaust system 102 includes a separate exhaust blower 118 for each air outlet 94. The outlet-line system 100 comprises a separate outlet line 124 between each air outlet 94 and the respectively associated outlet blower 118. There is no passive ejector 110.
The volume flow at each inlet 92 or at each outlet 94 can be regulated there by: the power to each feed blower 112 or the power to each exhaust blower 118 is separately controlled. This can be done, for example, by means of a frequency converter, as is known per se. Such independent control of the existing blower 112 or 118 is possible even in all other described embodiments and variants.
In the exemplary embodiment according to fig. 5, a passive inlet device 104 and a passive outlet device 110 are additionally present. There, a flap valve 116 is arranged in each individual delivery duct 122 and in each individual discharge duct 124. The position of the flap valve can be upstream or downstream of the feed blower 112 or the discharge blower 118.
Fig. 6 shows an embodiment in which the conveying system 98 has one feed blower 112 for a plurality of air inlets 92. The three gas inlets 92 are connected there, illustratively as a group, to the feed blower 112 via a multi-armed conveying line 126, which here has three arms. If only two or more than three air intakes 92 are co-operating with a common feed blower 112, then the multi-arm delivery conduit 126 has two or more than three arms, respectively.
In a corresponding manner, the exhaust system 102 has one exhaust blower 118 for a plurality of air outlets 94. The three outlet openings 94 are likewise connected there, illustratively as a group, to the outlet blower 118 via a multi-armed outlet line 128, which here has three arms. If only two or more than three air outlets 94 are co-operating with a common discharge blower 118, the multi-arm discharge duct 128 has two or more than three arms, respectively. In this arrangement, the volume flows can be set only in groups at the air inlet 92 or the air outlet 94, which is connected to the controllable blower 112 or 118.
In the exemplary embodiment shown in fig. 7, the passive inlet device 106 and the passive outlet device 110 are arranged in the following manner: a flapper valve 122 is disposed in each arm of the multi-arm discharge conduit 128. In this way, despite the presence of a common feed blower 112 or discharge blower 118 at each air inlet 92 or air outlet 94, the volume flow is individually preset by: the associated flap valve 122 is adjusted accordingly.
If the evacuation system 102 comprises an active suction device 108, the conveying system 98 may also comprise only the conveying-line system 96 without a passive inlet device 106 or the conveying-line system 96 with a passive inlet device 106, wherein no active blowing-in device 104 is present in each case. This variant is not expressly shown in the figures.
If the conveying system 98 accordingly comprises an active blowing device 104, the discharge system 102 can also comprise only a discharge-line system 100 without a passive discharge device 110 or a discharge-line system 100 with a passive discharge device 110, wherein no active suction device 108 is present in each case. This variant is also not shown in particular in the figures.
In the embodiment shown in fig. 1 to 7, the air inlet 92 and the air outlet 94 are respectively arranged oppositely in a direction transverse to the transport direction.
Fig. 8 and 9 show an embodiment in which the air inlet 92 and the air outlet 94 are arranged offset to one another in the transport direction. Fig. 8 shows a regularly alternating arrangement, in which the distances of the inlet openings 92 and the outlet openings 94 are the same in the transport direction. There is exemplarily provided a separate delivery duct 122 and a separate discharge duct 124. Fig. 9 shows an asymmetric arrangement, in which the distances of the inlet 92 and outlet 94 in the transport direction are irregular and not always equal. The combination of a separate supply line 122 with a multi-armed discharge line 128, which is designed as a variant in the exemplary embodiment according to fig. 9 as a double arm, is shown here by way of example.
In this offset arrangement of the gas inlet 92 and the gas outlet 94, the gas flow through also flows with a directional component parallel to the direction of movement of the transport carriage 40, wherein this directional component can be directed in the direction of movement of the transport carriage 40 or counter to this direction of movement. This results in an improved circulation of the conveying technology in the travel space 72.
As shown in fig. 10, the exhaust gas discharged from the driving space 72 can be guided through a control device 130, which is connected to the exhaust system 102 or its exhaust line system 100. If necessary, the conditioning device 130 can be assigned an auxiliary feed blower 132, which can also be located upstream of the conditioning device 130 in a position different from that shown in fig. 10.
The control device 130 filters dirt out of the exhaust gas, for example. The conditioned gas is then of sufficient quality that it can be fed to a fresh air supply for the treatment device 16, in particular for the dryer 30, and on the way to the process in the treatment device 16. The conditioned gas is heated in the dryer 30 in a fresh air heat exchanger, as is known per se.
In order to monitor the temperature conditions in the travel space 72, temperature sensors can be provided there, so that a temperature profile of the travel space 72 can be created. The volume flow at a certain inlet 92 and/or outlet 94 can be varied and adjusted depending on the local sensor response in the following manner: the existing active and passive devices 104, 108 or 106, 110, i.e., in this case in particular the existing blowers 112, 118 and/or the existing flap valves 122, are actuated in such a way that a desired temperature distribution in the travel space 72 is ensured.
The components and features of the gas device 90 may be at least partially disposed on the sidewall 24 of the processing device 16. In one variant, it is intended to provide that the components and structures are arranged in the spatial region of the guide region 62 next to the travel space housing 76, so that they are arranged within the outer contour of the processing device 16, projected onto the standing surface of the processing device 16.
Fig. 11 also shows a variant of the travel space housing 76, in which the housing wall 78 is arranged further outside and forms an approximately downward continuation of the side wall 24 of the treatment device 16. In this case, the section 28c of the tunnel floor 28 also forms part of the travel space housing 76.
In the exemplary embodiment shown, all air inlets 92 and all air outlets 94 are each arranged on one side of the travel space housing 76, while in a variant not shown in any particular it can also be provided that both air inlets 92 and air outlets 94 are provided on each side of the travel space housing 76, and correspondingly adapted thereto are a conveying line system 96 and a discharge line system 100.
According to the design of the gas device 90, the volume flow Q m3s-1]In operation of the processing device 16 at the air inlet 92 and the air outlet 94, are coordinated and in particular follow a defined path of the transport carriage 40 through the travel space 72.
If the carriage 40 is moved along the connecting channel 80, it cannot be avoided that in the region of the connecting device 62, in particular in the region of the struts 64, if the sealing lamellae 86 of the shielding device 82 are deflected upwards, a jointly moving through-window between the travel space 72 and the treatment space 20 opens. Through this passage window, a strong heat transfer from the process space 20 into the driving space 72 and a strong atmospheric escape can occur.
If, locally at the location where the specific transport carriage 40 is present, the volume flow Q is temporarily increased at the gas inlet 92 arranged there, more heat can be removed from the gas flowing through. The atmosphere flowing from the process space 20 into the travel space 72 can be effectively exhausted locally in this way.
By controlling the gas device 90 or the conveying system 98 and/or the exhaust system 102 accordingly, it is possible to achieve that no pressure difference exists between the process space 20 and the travel space 20 at the connecting duct 80, as a result of which atmospheric gas can migrate from one space to the other. Ideally, a compensated pressure relationship exists, in particular at the passage window.
By means of the gas device 90, a pressure can be generated at least locally, which pressure is at least largely equal to the local pressure in the process space 20 on the other side of the connecting channel.
