Agitating – By movement of support for removable mixing chamber – Mixing chamber secured to support
Patent
1998-04-09
2000-02-15
Cooley, Charles E.
Agitating
By movement of support for removable mixing chamber
Mixing chamber secured to support
366185, B01F 1100, B65G 6523, B65G 6534
Patent
active
060244828
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a device for the transfer and mixing of pulverulent products, firstly contained in jars located at a first location, towards a second location, which can be a raised transporting path.
2. Description of Related Art
Certain products are handled in tight enclosures such as e.g. glove boxes, so that they are difficult to transport. The invention is used in circumstances of this nature. It is necessary to design a machine making it possible to grasp the jars and transport them in front of the second location before emptying them into it. It is necessary for the operation to be perfectly reliable and for it to be accompanied by no dispersion of the jar content, which may be toxic or dangerous, which also justifies the use of a completely automatic transfer process. It has been that the pulverulent products contained in the jars are often inadequately mixed, so that it is necessary to carry out such a mixing operation with the machine prior to emptying into the second location.
U.S. Pat. 4,569,623 and French Patent 2,617,817 describe more rudimentary devices, which are suitable neither for the automation of the transfer (the jars having to be fixed manually), nor for the preliminary mixing of the powder, nor for broad transfer possibilities, because the device has a fixed part linked with an emptying path and has no valve by means of which the jar can be retained and confined in the machine during the displacement of the body towards the emptying path.
SUMMARY OF THE INVENTION
These problems are solved with the present invention which, in its most general form, relates to a device for the transfer and mixing of pulverulent products contained in jars comprising a body installed so as to swing or tilt about a horizontal axis under the impulsion of a first motor, a plate and a distribution chute installed at two opposite ends of the body, which is traversed by a recess extending from one of its ends to the other and the plate being traversed by a recess extending from one face positioned in front of the body to a fixing device with a face carrying the grasping grips of a jar neck, said recesses being in extension, a second motor rotating the plate about an axis aligned with the plate recess, a valve making it possible to open and close the recess, the body being able to swing between a position where the plate is located beneath the body and a position where the chute is inclined downwards from the body.
This device makes it possible to transfer the pulverulent product between two locations relatively remote or displaced from one another. The body can be installed on an elevator chassis in order to compensate the level difference between the two locations, or lower the body of the device onto the jar which has been grasped. The function of the valve is not to authorize a flow out of the jar prior to mixing and the end of tilting of the body.
According to the device of the present invention, the emptying is facilitated if the chute is installed on the body by means of a vibrator system.
According to an advantageous embodiment of the invention, the grips are installed on pivots connected to a ring rotating in the plate under the effect of a third motor by rollers and cams making it possible to swing the grips between a retracted position and a convergence position, where the jar neck is retained, and between a lowered position coinciding with the retracted position and a locking position coinciding with the convergence position where the jar neck is raised and pressed against the plate around the recess. This mechanism permits an automatic stowing and unstowing of the jars.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described in greater detail hereinafter relative to the attached drawings, wherein show:
FIG. 1 A general view of the machine.
FIG. 2 A view of the central body and chute.
FIG. 3 A diametral section of the plate.
FIG. 4 A view in the axis of the plate of the jar grasping grip control mechanism.
DESCRIPTION OF T
REFERENCES:
patent: 2487033 (1949-11-01), Thurman et al.
patent: 4208135 (1980-06-01), Bastiao
patent: 4450983 (1984-05-01), Goodrich
patent: 4569623 (1986-02-01), Goldmann
patent: 5302073 (1994-04-01), Riemersma et al.
Compagnie Generale des Matieres Nucleaires
Cooley Charles E.
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