EP1113414A2 - Sound protection for manufacturing machines - Google Patents

Abstract

The system has a cabin (2) that encloses the entire machine (1) and has noise insulating or absorbing walls. The cabin is formed from individual wall (2') and roof (2'') modules, which are assembled to form a bell-shaped cabin that fits over the cabin. At least one wall module has a door (4) or flap, through which the working area (3) of the machine is accessible. An Independent claim is included for a manufacturing machine with the system.

Description

The invention relates to a soundproofing system for production machines Sound insulation system for manufacturing machines, in particular for machine tools and assembly machines and machining centers, with an encapsulation enclosing the processing space, which has a sound-absorbing or absorbing wall.

Such noise control systems are generally known and are in connection with machine tools or other manufacturing machines used. Machine tools can, for example a conversion of the processing room with such a sound insulation system have one side of the machining space is mostly covered by the frame of the machine tool, while the other sides are formed by a wall, the absorb the sound generated during processing can The resulting cabin can be opened via doors be, the side wall of a sound permeable outer area and a sound absorbing inner area is formed. The inner area can be made of rock wool, for example exist, which is embedded in elastic plastic, which is clamped between two perforated sheets. To this The noise level of the production machine can be reduced by 4 to 5 dB can be reduced.

A disadvantage of the known design, however, is that the Encapsulation of the machining area a special construction required, depending on the type of machine tool used must be specially designed and manufactured. This increases the Cost of building the soundproofing system, so that despite the advantages and the gain in quality of work often on the Use of such systems is dispensed with.

For occupational safety reasons, however, there is a reduction the noise level in the workplace is desired, so that increasingly also relatively little noise-emitting machines be equipped with such sound systems to the total sound pressure level within a production hall for example, to be able to lower such that no exceptional Noise pollution of workers occurs more. Hereby jobs are not just for workers more pleasant, the employer can often save additional costs, because in the case of high noise pollution at the workplace longer and More frequent breaks are prescribed, additional earmuffs must be worn or allowances to the workers concerned have to be paid. It makes economic sense through effective noise protection such expenses save, the cost of sound insulation in one reasonable ratio to the saved expenses have to.

The object of the invention is therefore to provide a sound insulation system for To create manufacturing machines that are versatile and is adaptable to existing machines at low cost.

This object is achieved according to the invention in that the Encapsulation encloses the entire manufacturing machine and of individual modules is formed, which become one on the manufacturing machine superimposed, bell-like cabin are.

Due to the inventive design of the soundproofing system can now easily go through the entire manufacturing machine the bell-like cabin are encapsulated, the size of the Module is chosen so that regardless of the individual Machine based on standard components the cabin in the desired and required size can be put together. The Modules are preferably designed so that they with their lower Edge to be attached to the frame of the manufacturing machine can, so that attachment to the hall floor is not necessary can and the sound insulation cabin together with the manufacturing machine forms an organizational unit.

In addition to the machine tools, manufacturing machines can also assembly robots, transfer lines or machining centers provided with the soundproofing system according to the invention his. Basically, the system can be used in conjunction with all operational noise-emitting machines and devices easy and flexible to use. In addition to noise isolation the system according to the invention has the advantage that Herewith also easy and simple protection against chemical Emissions, for example against gases or other volatile By-products of manufacturing can be realized.

In a preferred embodiment of the invention Encapsulation made up of wall modules and ceiling modules, whereby the wall modules assembled into a circumferential side wall are then closed together with the ceiling modules Cabin results. Here, a rectangular shape the cabin or a round shape can be chosen, with in Case a rectangular shape corner modules can be used to which an adjacent wall module can be attached can. This wall module can either be a corner module be or a flat plate, so that any geometry the cabin can be built.

The wall modules themselves, like the ceiling modules, are preferably made of made of a light, particularly sound-absorbing material. For this purpose, the wall module can have a frame, a hole punched between the front and back Sheet is attached, the actual between the perforated sheets sound-absorbing layer is arranged. This sound absorbing Layer can, for example, of a layer of rock wool be formed for reasons of strength and sealing can be welded between two plastic films. Instead of the stone wool, of course, others can elastic materials are used that are sufficiently durable and are able to absorb the sound.

So that the processing space of the encapsulated manufacturing machine is accessible for set-up and maintenance work preferably one of the wall modules opens a door or a flap. One flap may be sufficient for smaller machines while with larger machines it is possible to walk into the machining area will be required to hand workpieces the machine and on the other hand the necessary work to be able to carry out within the processing room. One of the wall modules can preferably be a movable wall module be designed so that this wall module the function of the door can take over. Another module can be placed above this wall module be arranged, provided the height of the manufacturing machine so required.

The door created by this movable wall module can either be designed to be pivotable, one of its longitudinal edges is struck on an adjacent wall module, or also be a sliding door that slides in front or behind the level of the other wall modules is arranged. With inside Of course, the door must be large enough to accommodate the Allow sliding movement to open the door. Such Sliding door can be horizontal and parallel to the side wall extending guide rails are mounted, the Sliding door of one or more movable wall modules can be formed.

The movable wall modules are preferably over one or two Guide rails mounted, with for example a guide rail can be arranged above the wall modules and this over a horizontally arranged within the guide rail movable roller bearing with the movable wall module can be connected. The length of the guide rail is in in this case, preferably about twice the length of the displacement path on, being a preferred shape for the guide rail is a C-profile.

In the lower area, a wall module mounted in this way can either be free floating or, preferably, because thereby additionally soundproofing, also in one Guide rail be stored. Since this lower bearing the Does not have to absorb the weight of the movable wall module, it may be sufficient that this lower guide rail just placing the movable wall module on one Edge of the manufacturing machine or a frame. The Movable wall module is preferably provided with seals that prevent or reduce the passage of sound with gaps. Rubber lips or similar known ones are preferred as seals Seals used.

In a preferred embodiment of the door, the movable Wall modules can be moved horizontally at three positions stored. For one, this can be storage in a lower and upper guide rail. The lower guide rail can only pressing the lower edges against an inner one Effect abutment edge, being between this abutment edge and the lower edge of the wall module arranged the seal can be. In the area between the top and bottom can be provided a further longitudinal guide that bulge the door and thus a sound outlet in the middle Area avoids.

Due to the sound-insulating effect according to the invention, a noticeable noise reduction within the production hall or Assembly hall on. To ensure that this is the case with a preferred embodiment of the invention each opening of the Soundproof booth provided with switches that control the manufacturing machine arranged in the cabin interact. When opening the door or flap, for example the machine drive is shut down automatically, so that this switch additionally prevents People get into the machining area of the machine.

Depending on the design, either opening the doors or the flap trigger an immediate emergency stop or that Shut down the machine in a controlled manner after a certain time delay. The latter is useful, for example, if the door or flap must be opened briefly, for example subject the processing to a brief visual inspection, without stopping it. For that it can Only switch off the machine after a long period of opening the soundproof cabin, so that short openings Control purposes are possible.

The wall modules can be bushings for connecting cables or have other supply lines or windows his. Windows should be equipped so that they are as possible do not represent sound bridges to the sound insulating Effect cannot be canceled. Double or are therefore preferred Multiple glazing is used, with the glazing either from a window glass pane or from plastic panes can exist. The ceiling modules can go downwards at right angles protrudingly elongated, so that an approach shock abuts on the wall elements, for example Plug connections or screw connections with the ceiling modules can be connected.

Plug connections in particular enable easy assembly the soundproof cabin while being more effective Prevention of sound bridges. According to the invention both the ceiling modules and the wall modules with one Grid dimension, which enables a diverse combination, so that almost every commercial manufacturing machine can be provided with a soundproof cabin without this to have to create a special construction.

In the lower area are the wall elements with the frame of the Machine connected. To ensure the greatest possible flexibility here too can create at right angles from the broad side of the wall modules a pull-out connector pop out that mates with the Frame of the manufacturing machine is connectable. Similar ones In this way, the ground clearance can also be made adjustable, for example by one on the inside of the wall modules arranged slidable plate, which after fixing the Wall modules on the production machine lowered to the floor can be.

In a further embodiment of the invention, the soundproofing cabin is so sturdy that it is stable as a whole is, with several eyelets provided in this embodiment that enable the noise protection hood to be lifted. So can for example for maintenance purposes using the usually in Lifting tools available in every production hall, for example the ceiling crane, the entire soundproof hood is lifted, so that the manufacturing machine is easily accessible from all sides is. This is particularly important for larger conversions or Maintenance work or in the case of isolation of individual Machines from a closely related production line make sense.

The soundproof cabin can have signaling devices on the outside have certain operating states of the manufacturing machine or the opening status of any doors or flaps are able to display. For example, during de Operation of the arranged inside the noise protection hood Manufacturing machine an all-round lamp be activated, wherein for example, a yellow light indicates regular operation and a red light indicates a fault.

With the soundproofing system according to the invention, a single Machine can be provided, but it is also possible to complete Encapsulate assembly or production lines with this system. This can either be done by encapsulating the individual machines or by building a cabin for the full Production line. Because of the flexible construction options over the prefabricated, provided with uniform grid dimension Depending on the local requirement, the module can be modified by the site-specific Construction of the production line the desired encapsulation to get voted. After all, it is flexible Construction possible without further ado in the event of retrofitting or new production programs to expand the soundproofing cabin. This can be helpful in the case of assembly robots, for example be in the course of their use for the assembly of others Parts are reprogrammed and thus a larger one Need swivel range.

Further features and advantages of the invention result from the subclaims and from the description below two preferred embodiments of the invention based on of the drawings.

Fig. 1

eine Seitenansicht einer ersten Ausgestaltung der Erfindung, aufgesetzt auf eine Werkzeugmaschine,

Fig. 2

den Übergang eines Wandmoduls zu einem Deckenmodul der in Figur 1 dargestellten Ausführungsform der Erfindung in einer vergrößerten Darstellung im Schnitt,

Fig. 3

die Einzelheit X aus Figur 2 in einer im Vergleich zu Figur 2 nochmals vergrößerten Darstellung,

Fig. 4

die Einzelheit Y aus Figur 2 in vergrößerter Darstellung,

Fig. 5

die Einzelheit Z aus Figur 2 in vergrößerter Darstellung,

Fig. 6

eine Seitenansicht einer zweiten Ausgestaltung der Erfindung, ebenfalls aufgesetzt auf eine Werkzeugmaschine,

Fig. 7

den Bereich der Seitenwandung der in Figur 6 dargestellten Ausgestaltung in einer vergrößerten Darstellung im Schnitt,

Fig. 8

die Einzelheit V aus Figur 7 in einer im Vergleich zu Figur 7 nochmals vergrößerten Darstellung und

Fig. 9

die Einzelheit W aus Figur 7 in ebenfalls vergrößerter Darstellung.

In the drawings:

Fig. 1

2 shows a side view of a first embodiment of the invention, placed on a machine tool,

Fig. 2

the transition of a wall module to a ceiling module of the embodiment of the invention shown in Figure 1 in an enlarged view in section,

Fig. 3

the detail X from FIG. 2 in an enlarged representation compared to FIG. 2,

Fig. 4

the detail Y from Figure 2 in an enlarged view,

Fig. 5

the detail Z from Figure 2 in an enlarged view,

Fig. 6

2 shows a side view of a second embodiment of the invention, likewise placed on a machine tool,

Fig. 7

the area of the side wall of the embodiment shown in Figure 6 in an enlarged view in section,

Fig. 8

the detail V from FIG. 7 in a representation enlarged again compared to FIG. 7 and

Fig. 9

the detail W from Figure 7 also in an enlarged view.

In Figure 1, a manufacturing machine 1 is shown with a soundproofing system according to the invention in the form of a cabin 2 is provided. The cabin 2 is made up of wall modules 2 'and Ceiling modules 2 '' together, with the ceiling modules 2 '' in the edge area are angled down to connect to the To create wall modules 2 '.

The cabin 2 has a door 4 on each side, via which the processing space 3 of the manufacturing machine 1 and the manufacturing machine 1 is accessible as such. The door 4 is formed by several movable wall modules 2 ″, which are in an upper guide rail 5 horizontally via a roller bearing are slidably mounted. The guide rail 5 as well as the ceiling modules 2 '' are attached to the machine housing using brackets connected to the manufacturing machine 1.

In Figure 2, the area of the door 4 of the cabin 2 is in one enlarged detail view shown. Each of the two door 4 forming movable wall modules 2 'is horizontal over a slidable roller bearing within the guide rail 5 in held upper area. At the bottom are the movable ones Wall elements 2 'held in a further guide rail 5, in addition, an additional guide 7 in the upper third of the movable wall modules 2 'for a secure hold. This is for Achieving effective noise isolation is important so not through gaps between the movable wall modules 2 ' Sound waves can emerge and sound bridges arise could. In Figures 3 to 5 is the storage of the movable Wall modules 2 'in a further enlarged detail view shown. Figure 3 shows the upper storage, Figure 4 the middle storage via the additional guide 7 and FIG. 5 shows the lower bearing in the lower guide rail 5.

In the area of the lower guide rail 5, the two are movable Wall modules 2 'separated from one another by a separator 8, which is preferably made of plastic, so that results in a low-noise but safe sliding guide. The lower one Guide rail 5 provides the right side for each the movable wall modules 2 'an abutment, one of the Abutment through the separator 8 and the rear abutment due to a right-angled bend within the guide rail 5 is realized.

Together with the additional guide shown in Figure 4 7, the wall modules 2 'in the direction of the cabin interior pulls, this results in a secure installation of the movable wall modules 2 'to each other and to the surrounding frame profiles. The additional guide 7 is in turn a horizontal roller bearing trained and also has one for this purpose Guide rail 5 on. In the upper guide rail 5 are the two movable wall modules 2 'held in double roller bearings, the weight of the movable wall modules 2 ' able to absorb and due to the roller bearing reduced movement of the movable wall modules 2 ' enable.

The movable wall modules 2 'themselves are preferably a sandwich panel constructed, with two outer layers of one Perforated sheet or a perforated plastic can be formed between which a noise protection layer is arranged. This The noise protection layer can be, for example, a layer of foil hammered rock wool, the outer area additionally with a corrugated, ribbed or nubbed surface can be provided. Instead of a rock wool you can of course also foamed materials, such as a Polyurethane foam can be used.

FIGS. 6 to 9 show a further embodiment of the invention Soundproofing system shown. Also at The manufacturing machine 1 with its processing space becomes this system 3 completely encapsulated by the cabin 2, so that by assembling the wall modules 2 'and the ceiling modules 2 '' effective noise insulation can. In the configuration of the wall modules shown here the door 4 realized by two movable wall modules 2 ' are also guided in a frame via guide rails 5. Fixed wall modules are located above the movable wall modules 2 ' arranged that connected to the adjacent ceiling modules are.

The movable wall modules 2 'are stored as already in the embodiment described above over two upper Roller bearings in the upper guide rail 5. In the area of the lower edge are also the movable wall modules 2 ' as in the previously described embodiment, a lower guide rail 5 out, which also has a separator 8. In contrast to the configuration described above however, the additional guide 7 is near the bottom here Edge arranged and thus prevents the movable Wall modules 2 'around the upper guide rail 5.

The claims now filed with the application and later are attempts to formulate without prejudice to achieve further protection.

The backward relationships mentioned in the dependent claims point to the further training of the subject of the main claim by the features of the respective subclaim there. However, these are not considered a waiver of achievement an independent, objective protection for the characteristics to understand the related subclaims.

Features previously only disclosed in the description can in the course of the process as of essential to the invention Significance, for example to differentiate it from the prior art be claimed.

Claims (20)

Soundproofing system for production machines, in particular for machine tools and assembly machines and machining centers, with an encapsulation enclosing the machining area and having a sound-absorbing or absorbing wall, characterized in that the encapsulation encloses the entire production machine (1) and is formed by individual modules which a bell-like cabin (2) placed on the production machine (1) is assembled. Soundproofing system for production machines according to claim 1, characterized in that the encapsulation is made up of wall modules (2 ') and ceiling modules (2''), the wall modules (2') forming a circumferential side wall and together with the ceiling modules (2 '') are assembled to the closed cabin (2). Soundproofing system for production machines according to one of the preceding claims, characterized in that at least one of the wall modules (2 ') has a door or flap through which the processing space (3) of the production machine (2) is accessible. Soundproofing system for production machines according to one or more of the preceding claims, characterized in that at least one of the wall modules (2 ') is designed as a movable wall module in the form of a door (4) or flap and is pivotable or displaceable on an adjacent wall module (2') or a ceiling module (2 '') lying above it. Soundproofing system for production machines according to one or more of the preceding claims, characterized in that the movable wall module is arranged in front of or behind the plane of adjacent fixed wall modules (2 ') and its upper and / or lower edge is each mounted in a guide rail (5) , wherein the guide rail (5) is fixed to the fixed wall modules (2 ') or the ceiling modules (2'') and has a length which corresponds essentially to twice the length of the movable wall module (2'). Soundproofing system for production machines according to one or more of the preceding claims, characterized in that the movable wall modules (2 ') have rollers (6) which are rotatably mounted at least at the upper edge and are mounted in the guide rail (5). Soundproofing system for production machines according to one or more of the preceding claims, characterized in that the movable wall modules (2 ') are pressed between the upper edge and the lower edge by an additional guide (7) against a frame or adjacent wall modules (2), which one for the displacement direction of the wall modules (2 ') it is possible to apply rectangular holding force to the wall modules (2'). Soundproofing system for production machines according to one or more of the preceding claims, characterized in that it has at least two movable wall modules (2 ') which are arranged next to one another and which lie in a common or in separate, successively arranged planes to expose a large opening in a common direction or can be moved in opposite directions in front of or behind adjacent fixed wall modules (2 '). Soundproofing system for production machines according to claims 4 to 8, characterized in that the movable wall modules (2 ') have seals at the edges to prevent sound from escaping. Soundproofing system for production machines according to one of claims 4 to 9, characterized in that switching elements are arranged in the range of motion of the movable wall modules, opening of the movable wall modules (2 ') being able to actuate the switching elements. Soundproofing system for production machines according to one or more of the preceding claims, characterized in that it has on its outside a signal device, in particular a signal lamp, which can indicate an actuation of one of the switching elements. Sound insulation system for manufacturing machines according to one or more of the preceding claims, characterized in that the wall modules (2 ') and the ceiling modules (2'') have an outer, sound-permeable carrier layer and a sound-absorbing core filling. Sound insulation system for manufacturing machines according to one or more of the preceding claims, characterized in that the sound-absorbing core filling is formed by a layer of rock wool. Soundproofing system for production machines according to one or more of the preceding claims, characterized in that at least one of the wall modules (2 ') has a transparent region, in particular formed by double or multiple glazing, or is completely transparent. Soundproofing system for production machines according to one or more of the preceding claims, characterized in that the ceiling modules (2 '') have an edge region which is angled downwards at right angles and is connected to the upper edge of the wall modules (2 '). Soundproofing system for production machines according to one or more of the preceding claims, characterized in that the wall modules (2 ') are attached to the production machine (1) with their lower edge. Soundproofing system for production machines according to one or more of the preceding claims, characterized in that at least one of the ceiling modules (2 '') has at least one eyelet and the cabin (2) is designed so stiff that the fully assembled cabin (2) by means of a crane can be placed on the production machine (1). Manufacturing machine with a sound insulation system one or more of the preceding claims. Manufacturing machine according to claim 18, characterized in that it has a control which is capable of automatically switching off the drive of the manufacturing machine (1) when the switching elements are actuated. Manufacturing machine according to claim 18 and / or 19, characterized in that the manufacturing machine is designed as a transfer line, machining center or machine tool.

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