Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
  • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
  • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
  • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
  • B01F35/71—Feed mechanisms
  • B01F35/712—Feed mechanisms for feeding fluids
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
  • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
  • B01L3/02—Burettes; Pipettes
  • B01L3/0289—Apparatus for withdrawing or distributing predetermined quantities of fluid
  • B01L3/0293—Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01G—WEIGHING
  • G01G17/00—Apparatus for or methods of weighing material of special form or property
  • G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
  • G01G17/06—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes having means for controlling the supply or discharge

Definitions

• the subject of the present invention is a device intended to collect, weigh and automatically mix, according to the data supplied for example by a computer, various and precious liquids, under very strict non-contamination conditions and precise weight dosing.
• the device according to the invention makes it possible to avoid these errors, as well as the risks inherent in the handling of very expensive and sometimes corrosive products, by guaranteeing on the one hand an optimal economy of these products by a greater safety and a greater precision of handling, on the other hand a great speed of execution, as well as better health safety of the personnel, whose contact with ethyl vapors is reduced.
• the device according to the invention comprises modular elements which can be juxtaposed as a function of demand, each element or module comprising a multiplicity of pumping or transfer blocks, each of these blocks being integral with a bottle or other container containing the liquid material to be transfer to a bottle or test tube.
• the device according to the invention is characterized by the implementation, in each pumping block, of a peristaltic pump incorporating neither motor nor rotor, the latter being mounted together and integral with a mobile robot arm comprising a clamp to hold the bottle or test tube intended to receive the transferred products.
• the body of the peristaltic pump incorporates a collapsible hose and it is open bilaterally: on the front to allow the introduction of the roller-driven rotor driven by the motor, and on the rear to allow the replacement of the hose.
• the motor / roller carrier rotor assembly is positioned opposite the pump body designated by the sampling and mixing program, mates there and rotates in the direction of flow of the liquid until obtaining of the desired weight, stops and turns in the opposite direction for a revolution or two, in order to reintroduce into the initial container the liquid contained in the pipe and thus to remove it from the oxidizing action of the air.
• the assembly decouples and positions itself in front of another pump body according to the following program.
• the device according to the invention is completed by a simultaneous weighing device of the conventional type which is advantageously connected to the computer which controls the automatic operation of the assembly according to the program chosen.
• FIG. 1 shows the pumping assembly of a device according to the invention with its motor and its roller-bearing rotor in the uncoupled position.
• FIG. 2 shows the pump body of a device according to the invention, seen from the front.
• FIG. 3 shows the same pump body, seen in section, " along the section line AA of Figure 1, in the uncoupled position with the rotor and the motor.
• FIG. 4 shows the same pump body in the coupling position with the rotor and the motor.
• a pumping block of the device comprises a peristaltic pump body 1 capable of being coupled to a movable assembly 2 incorporating a driven roller rotor 3 in rotation by a motor 4 and a receiving device 5 intended to hold the receiving bottle 6 where the mixing of the products is carried out, this receiving device 5 incorporating a weighing device (not shown in the figure) making it possible to control the quantity of liquid 11 introduced into the bottle 6.
• the pump body 1 incorporates a crushing pipe 8 which opens at the lower part of the pump body 1 by n orifice 19 and which extends outside to be connected to a tube 9, which plunges through a stopper 13 into a bottle 10 containing the liquid 11 to be sampled, and kept in a bottle holder 14 incorporating the stopper 13.
• a short tube 12 passed through the plug 13 maintains the liquid 11 at ambient pressure, while a clamp 15 makes it possible to close the pipe 8 after the sampling, the clamp 15 mechanically erasing as soon as the rotor 3 is introduced into the pump body 1.
• the pipe 8 opens, inside the pump body 1, into an orifice 19 formed at the base of said pump body and through which the withdrawn liquid 11 flows into the receiving bottle 6.
• the rollers 33 regularly spaced on the rotor 3 make it possible to create a peristaltic movement in the pipe 8, thus authorizing the sequential pumping of small quantities of liquid 11 in the bottle 10, the adjustment of the motor 4 making it possible to slow or accelerate the rotation of the rotor 3, and therefore liquid removal 11.
• the crushing pipes of the pumping blocks of the device according to the invention must be chosen to have good resistance to ethanol and certain corrosive liquids, and they are preferably made of a plastic material such as. "TEFLON" (registered trademark).
• the pump body can itself be in two parts to facilitate the machining of the groove receiving the collapsible pipe, and it is preferably made of aluminum alloy for reasons of lightness and rigidity, as well as ease of 'machining. Certain plastics can also be used They reserve their good resistance to solvents and ethyl vapors contained in the products handled.
• the device according to the invention is particularly suitable for the automated mixing of liquids liable to be corrosive, of variable quality and viscosity and of various origins, and meets the principles laid down by precise specifications, in particular as regards the need to observe strict non-contamination, both by neighboring products to be handled and by the manufacturing agents contained in the products used.
• the device according to the invention is particularly intended for the perfumery, cosmetology, para-pharmacy and pharmaco-chemistry industries, but can also be used in the field of food flavorings, and by laboratories wishing to s 'automate.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Analytical Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Clinical Laboratory Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Reciprocating Pumps (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9387837

Family Applications (1)

Country Status (3)

Families Citing this family (5)

Family Cites Families (4)

• 1989
  • 1989-11-24 FR FR8915601A patent/FR2655092B1/fr not_active Expired - Fee Related
• 1990
  • 1990-11-26 EP EP91900036A patent/EP0466845A1/de not_active Withdrawn
  • 1990-11-26 WO PCT/FR1990/000850 patent/WO1991008451A1/fr not_active Application Discontinuation

Non-Patent Citations (1)

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