Coating apparatus – Immersion or work-confined pool type – Work-confined pool
Reexamination Certificate
1999-11-22
2003-03-25
Vidovich, Gregory M. (Department: 3726)
Coating apparatus
Immersion or work-confined pool type
Work-confined pool
C427S200000, C427S206000, C029S417000, C029S527200
Reexamination Certificate
active
06537375
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention concerns a process for applying different colored flocks and/or types of flocks to a profiled section of profile serving especially as an automobile body into which, after extrusion, the flock is deposited and bore holes and separation cuts are introduced. The invention furthermore concerns a device for implementing the process with coating, cutting to size and drilling as well as drying and cleaning stations connected with the extruder and which are joined with each other over a transport and guide facility for the profile, whereby the coating station has available storage space for the flock as well as a flock cabin.
Sections of this type, especially profiled joints, are generally made of plastic, whereby the elements of the section which do not serve for sealing or for other tasks are coated with flocks of a color which, for example, is adapted to the color of the automobile, or which corresponds thereto. This is especially advantageous with rubber sections, which as a rule have a black color, because they clearly contrast these black profiled joints from the color of the automobile or the color of the interior space of a vehicle. The flocks are applied in a coating station to the section, whereupon the section cord runs through a drying station and then is cut to length and provided with the necessary bore holes. It is disadvantageous that with the previous processes and with the devices provided for these that coating is possible only with one type of flock or one color, whereby the change from one type of flock to another or a corresponding change in color requires considerable conversion operations. Coating here takes place on the running section cord, which then must be stopped for a short time in the cutting and boring station in order to be able to introduce the separation cutting or the boring. It is consequently not possible to undertake different coatings of sections of this type in stages or subdivided in another manner.
SUMMARY OF THE INVENTION
Underlying the invention is therefore the object of creating a process and a device with which sections in exactly defined regions are to be provided with a different color and/or constructed flock coating.
This objective is accomplished in accordance with the invention in that the flock is deposited into the still-standing section simultaneously with the production of the bore holes and separation cuttings, and subdivided into previously set coating areas kept separate from one another.
With a process of this type, it is first of all possible to apply a different color or a different type of flock to various coating areas of the section at the same time and to be sure that they are precisely separated from one another because the coating takes place at exactly the moment in which the section must be detained on account of the necessary application of the bore holes and separating cuts. Owing to the defined areas which must be adhered to with great precision, there exists the possibility of applying, for example, red or blue or green or other color flocks to a specified component area of a profiled segment, while the adjoining area is provided with a wholly different color coating. Flocks also applied to prevent sticking capacity may, for example, be installed in different colors in the sealing area of a car frame profiled joint perpendicular to the longitudinal axis, or even in the direction of the long axis, in order thus to comply with necessities or even taste. Further details on this have yet to be explained further in which connection it is decisive that the respective coating areas can be kept precisely separated from each other.
According to an appropriate construction of the invention, it is provided that the deposition of the flock is undertaken into the still-moist adhesive bed of the section. The coating station is for this reason to be arranged immediately behind the extrusion station, whereby the adhesive bed is at the same time rapidly normalized by applying the flock so that under certain circumstances a subsequent drying and cleaning station is not necessary.
It has already been mentioned further above that the corresponding coating areas can have separation lines as they correspond to the respective requirements. The invention therefore provides that the flocks are applied to the section separately with respect to color and/or type transverse to and/or along the section. Supplementally, the invention provides that the coating areas are partitioned from each other with flock bombardment of various colors or different types in the longitudinal direction of the section and/or across the section. Through a corresponding partitioning, that is, in lowering the separation walls until they are right on the section, it is assured that the respective border areas remain clearly separated from each other, even if, for example, red and green flocks are to be applied in appropriately adjacent coating areas. A mixed coating does not occur unless such is specifically desired from the customer in question. The possibility of specifying and adhering to clear boundaries here results in considerable advantages.
With relatively thin coating of sections, but also with high grade sections, it is advantageous if the continuously guided section is further conditioned following coating with different flocks in a drying and cleaning station. Subsequently, cutting to length or application of bore holes takes place in order to prepare the individual segments appropriately for the respective use. First to generate clear and clean border areas and secondly to be able to assure a complete utilization of the flocks, it is provided that excess flocks are sucked off separated according to color and/or type and in any given case fed into a selected storage space. As a rule, it is a matter of the same storage area which is allocated to the respective coating segment. The excess or remaining flocks are consequently put into circulation and applied, if need be, to the section in connection with the next bombardment.
A device in connection with which the flock cabin is subdivided into separate component cabins by separation walls lowered to the section serves to implement the process, which are in any given case proportioned lengthwise corresponding to the length of the segments of the section to be coated with different flocks and the transport facility is comprehensively configured with section so that each component cabin is allocated a storage space and that the transport facility and the flock discharges of the flock cabin are constructed by alternate activation. By selecting the term “flock cabin” for the basic part of the device, it has already been made clear that it is a matter of a closed and quasi-partitioned unit in which the coating takes place. This flock cabin is or can be subdivided into different component cabins in order to specify different coating segments perpendicular to the long axis of the section or, as further explained above, in the longitudinal direction as well. The section to be coated runs into the flock cabin or its component cabins, whereupon at the same time the coating of the different segments is undertaken the flock provided in each case for this purpose. When detaining the section that is thus in connection with halting the transport facility, flock discharges of the flock cabins or component cabins are activated which in the same moment bombard the still-moist adhesive bed of the section with flock. If the boring and cutting to length operations are concluded, the coating is also finished and the flock discharges from the flock cabin are stopped when the transport facility starts again. Since the size of the component cabins is specified in advance, an exact adherence to the separation cuttings can be maintained in this way for the different types of flock or colors of flock.
According to a further appropriate construction, it is provided that the partitions of the component cabins are constructed displaceable individually and/or in groups in the longitudinal di
Compton Eric
Creighton Wray James
Narasimhan Meera P.
Saar-Gummiwerk GmbH
Vidovich Gregory M.
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