Metal founding – Means to shape a forming surface – Including means for sweeping or cutting forming surface
Patent
1982-05-07
1984-10-02
Reese, Randolph
Metal founding
Means to shape a forming surface
Including means for sweeping or cutting forming surface
104109, 104250, 198744, 198746, B61B 1312
Patent
active
044741146
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
For certain transport requirements a type of intermittently-operating conveyor is available in which a feed device with reciprocating motion feeds forward supporting devices for goods of one type or other. This type of conveyor device has advantages in comparison with the other type of conveyor generally employed which has a continuously-moving drive element and is particularly suitable on the one hand where the path along which the material is to be transported is extremely long and can at the same time be provided with a certain slope, at least over significant distances, and secondly where extensively branched paths with many side lines are involved. In the first case the reciprocating drive devices can be employed on restricted distances where ascending gradients are involved or where the speed needs to be regulated while along the remaining sections the material supporting devices can move by means of gravity. In the latter case it may be difficult to arrange for continuously moving drive elements, because the drive of such elements can become particularly complicated in the event of several side paths. At the same time complicated transfer arrangements are often required at the branching points for the material. Hence conveyors of the said type are advantageous and are difficult to replace by other types for certain applications.
Technical problem
However they do generally have disadvantages. The reciprocating drive devices have to be connected to special drive means which have to be arranged along the path at the requisite locations. These drive means are often complicated and bulky and take the form of special units adjacent to the conveyor track which require special stands and fixing devices.
The Solution
In the invention the track consists of a girder with the shape of a hollow profile having a groove which in the lengthwise direction of the track firstly has one or more portions with completely closed cross-section and secondly one or more sections provided with a side aperture, whereby in the closed portion or portions plugs are inserted, between which one or more cylindrical spaces are formed, each arranged so as to enclose a piston with piston rod. The latter extends outside the cylindrical space. In the open portions, extending lengthwise along the groove, extended preferably flexible members are arranged which are joined to the piston rods, provided with the said driver members which are accessible through the said side apertures. On the outside of the girder a track is arranged for material carriers adjacent to the said side aperture, so that the driver members can make contact with the material carriers through the aperture. The cylindrical chamber is connected to pipelines for a pressure medium, so that the piston or pistons can be displaced back and forth as a result of the pressure medium being introduced on different sides of the piston. The members are driven by the piston rod so that the driver devices move the material carriers in the intended transport direction.
Advantages
The object of the present invention is, in the case of conveyors of the said type with reciprocating drive device, to bring about drive arrangements in the path of the material supporting devices which facilitates a simpler and less bulky design and greater ease of erection.
Another object of the invention is to bring about a drive device of the specified type which is extremely versatile, in use not only for the propulsion of material supporting devices, but also for other functions.
BRIEF DESCRIPTION OF DRAWINGS
The attached drawings illustrate an embodiment of the invention, whereby reference should be made to the drawings in the following specification. On the drawings
FIG. 1 shows, in perspective view, a section of a conveyor track to which the invention is applied;
FIG. 2 illustrates a cross section through the drive device in accordance with the invention;
FIG. 3 provides a longitudinal section through the drive device, while;
FIG. 4 and 5 illustrate a driven device.
BEST MODE
REFERENCES:
patent: 1730519 (1929-10-01), McKee
patent: 2606504 (1952-08-01), Stamler
patent: 3407750 (1968-10-01), Rantz
patent: 3454242 (1969-07-01), Feder et al.
patent: 4248563 (1981-02-01), Fur
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