FR2655092A1 - OPEN PERISTALTIC PUMP WITH DECOUPLABLE ROTOR FOR PERFUMER ROBOT. - Google Patents

Abstract

The device comprises a set of peristaltic pump cases (1) which are integral with each of the receptacles (10) which hold the liquids (11). Each pump case (1) includes a compression pipe (8) and at least one of its sides is open in order to receive the rotor (3) of a mobile unit (2) which further comprises a motor (4) for driving said rotor (3), and a receiving device (5) for the receptacle (6) which receives the successively sampled liquids (11). The receiving device (5) includes a weighing device for monitoring the amount of liquid (11) which is placed in the receptacle (6).

Description

 The present invention comprises a device intended for withdrawing, weighing and automatically mixing, according to data supplied by a computer, various and precious liquids according to very strict non-contamination conditions and according to a precise weight dosage.

 Currently mixing and weighing operations are carried out manually according to a certain tradition, but with the use of precision electronic scales, which does not eliminate the risks of error in dosing and handling of these high-value liquids, both in the field of perfumery and cosmetology, than classical pharmacy and myopathy which require precise dosages.

 TYn device according to the invention makes it possible to remedy these errors and the risks inherent in the handling of very expensive and often corrosive products, by ensuring a great economy of these products by a greater safety and precision of handling, a great speed of execution, as well as better health safety of the personnel, which is thus less in contact with ethyl vapors.

 The assembly includes modular elements juxtaposed end to end according to demand, each element or module comprising up to 10,000 pumping or transfer blocks, each being specific to a bottle or container containing the liquid materials to be transferred, or to be mixed, collected in a bottle or test tube.

 The characterizing part consists of the use of a peristaltic pump without motor or rotor, the latter being mounted together and secured to a mobile robot arm comprising a clamp holding the bottle or test tube receiving the transferred products, as well as a simultaneous weighing device.

 The body of the peristaltic pump with crushing pipe is open on two sides: on the front to allow the introduction of the roller-bearing rotor and, on the back to allow the replacement of the pipe.

 This solution is explained by the need to design a simple set of maintenance and use by unqualified personnel. in addition it allows a significant saving in components and wiring since a single motor equipped with its roller-bearing rotor is sufficient for as many pump bodies as necessary, theoretically without limitation.

 In operation, the motor-roller-roller assembly is positioned opposite the pump body designated by the sampling and mixing program, mates there and turns in the direction of flow of the liquid until the desired weight is obtained. , stops and goes back in the opposite direction over a revolution or two, in order to reintroduce the liquid contained in the pipe into the initial container and thus remove it from the oxidizing action of the air. At the end of this operation, the assembly separates and is positioned in front of another pump body according to the rest of the established program.

 In the absence of the roller-bearing rotor, a device clamps the pipe, thus preventing an untimely flow of the product and the entry of air.

The following attached drawings illustrate the invention cP according to
drawing 1/3: drawing of a pump body, front and
in cross-section, in the coupled and uncoupled position.

drawing 2/3: drawing of the entire pump unit with motor
and roller carrier rotor in uncoupled position.

drawing 3/3: drawing of the entire application on a
robot called "perfumer".

 With reference to the drawings presented, we will find in, (I) the body of the peristaltic pump in the groove of which is placed the collapsing pipe (2), in (3) the roller-bearing rotor secured to the drive motor ( 4), this assembly being mobile and comprising a self-centering device (5) facilitating positioning in the pump body, in (6) the clamp preventing the flow of liquid in the absence of the roller-bearing rotor.

 The pump block crush pipes must be chosen as having good resistance to methanol and certain corrosive liquids; they must preferably be in "TEFLON" (registered trademark. The pump body can itself be in two parts to facilitate the machining of the groove receiving the collapsible pipe; it must preferably be made of an alloy aluminum for reasons of lightness and rigidity and also ease of machining; certain plastics can be used provided that they are resistant to the solvents and ethyl vapors contained in the materials handled.

 The device according to the invention is particularly designed for the automated and computerized mixing of liquids which can be corrosive, of variable quality and viscosity, of various kinds, animal, vegetable and mineral, and fully incorporates the principles dictated by precise specifications, emphasizing the need to observe strict non-contamination, both by neighboring products to be handled and by the manufacturing agents contained in the components used.

 The set is intended for the perfumery, cosmetology, para-pharmacy and pharmaco-chemical industries; 7lne extension is possible and envisaged in the field of food aromatics and laboratories wishing to automate.

Claims (5)

1) Peristaltic pumping device with crushing pipe characterized in that the roller-bearing rotor (3) is integral with a movable drive motor (4) and uncouplable from a pump body (1), which is open on the back to allow replacement of the hose (2). 2) Device according to claim I characterized in that the rotor holder / motor rotor (3) and (4) mounted on a movable support can be uncoupled from a pump body (1) to position and mate with another pump body. 3) Device according to any one of the preceding claims, characterized by a self-centering device (5) of the rotor / motor assembly (3) and (4) facilitating precise positioning in the pump body during the coupling. 4) Device according to any one of the preceding claims, characterized by the presence of a device (6) which clamps the pipe (2) on the pump body (1) in the absence of the roller-bearing rotor (3), thus preventing the flow of liquid when the assembly is uncoupled. 5) Device according to claim 4 characterized in that the device (6) which clamps the pipe (2) disappears mechanically upon introduction of the roller-carrying rotor (3) in the pump body (I)