Vibratory Spiral Conveyor
a conveyor and spiral technology, applied in the field of spiral coolers, can solve the problems of inlet air channel being easily damaged, complex structure, and complex structure, and achieve the effect of simple, durable structure and good cooling action
Inactive Publication Date: 2007-06-07
JOST GMBH & CO KG
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0007] The object of this invention is to devise a spiral cooler and a process for cooling of workpieces, a simple, durable structure of the spiral cooler being enabled with good cooling action.
[0008] One important idea of this invention is to cool the workpieces in counterflow by cooling air, the cooling air being to the conveyor channel preferably solely in the area of the second end at which the cooled workpieces are delivered and the exhaust air being removed preferably exclusively in the area of the first end at which the workpieces to be cooled are delivered into the conveyor channel. This allows a very simple and thus economical and also durable structure. In particular, no axial or radial air channels, collecting boxes or the like are necessary. Rather an at least essentially continuous inside and outside wall of the conveyor channel can be implemented.
[0009] According to another preferred aspect, negative pressure is produced in the conveyor channel at least over a significant region of the conveyor channel. This prevents unwanted emergence of dust and enables, for example, also opening of check openings during operation.
[0010] The negative pressure is easily and efficiently produced—even for a high flow resistance for the cooling air in the conveyor channel—in that a partial flow of cooling air is exhausted from the conveyor channel and delivered again into the conveyor channel with a higher speed. This takes place especially in the vicinity of the first end, therefore in the vicinity of the delivery of the workpieces to be cooled or the exit air means. Thus, depending on the portion of the partial flow in the total flow and / or the speed with which the partial flow is delivered again into the conveyor channel, a negative pressure can be produced up to the second end—output end—of the conveyor channel. Furthermore, by varying the proportion or speed of the component flow the negative pressure or optionally the flow of ambient air drawn into the conveyor channel can be controlled.
Problems solved by technology
This structure is very complex.
Moreover, the inlet air channel can be very easily damaged by workpieces in the conveyor channel.
This structure is also complex.
This structure is also complex.
Method used
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[0014] In the figures, the same reference numbers are used for the same or similar parts, the corresponding properties and advantages being achieved even if a repeated description is omitted for reasons of simplification.
[0015]FIGS. 1 & 2 schematically show a spiral cooler 1 in accordance with the invention in one preferred embodiment. The spiral cooler 1 is used to cool workpieces 2, especially castings, such as brake disks or the like, as indicated in FIG. 1.
[0016] The cooling takes place with cooling air. However, if necessary, also another gas can be used for cooling. Alternatively or in addition, additional media can be used for cooling.
[0017] The spiral cooler 1 has a preferably at least an essentially coiled or spiral conveyor channel 3 for the workpieces 2. The conveyor channel 3 preferably represents a conveyor for the workpieces that is closed on all sides. In FIGS. 1 & 2, the upper coil turn of the conveyor channel 3 is shown open—therefore not hidden—on the left side ...
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Abstract
A spiral cooler and a process for cooling workpieces are proposed. A very simple structure is enabled by the workpieces being cooled in counterflow by cooling air, preferably a negative pressure being produced in the conveyor channel by branching off and redelivering a partial flow.
Description
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a spiral cooler for cooling of workpieces, especially castings, by cooling air, with a preferably coiled or spiral conveyor channel for the workpieces and with an inlet air means and exit air means for cooling air. [0003] 2. Description of Related Art [0004] Published International Patent Application WO 2004 / 058602 discloses a spiral cooler with a coiled conveyor channel for workpieces to be cooled by cooling air. The cooling air is supplied by inlet air channels which extend radially into the conveyor channel so that the workpieces located in the conveyor channel are exposed to cooling air in the axial direction. Exhaust takes place in the radial direction via the corresponding exhaust channels which extend axially within the spiral cooler. This structure is very complex. Moreover, the inlet air channel can be very easily damaged by workpieces in the conveyor channel. [0005] German Patent ...
Claims
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Login to View More IPC IPC(8): F25D25/00F25D25/02B22D30/00
CPCB22D30/00
InventorKREFT, MANFRED
OwnerJOST GMBH & CO KG