Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
  • B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
  • B65B3/30—Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement

Definitions

• the invention relates to a shut-off and / or dosing device for viscous substances, in particular powdery materials. * It is often necessary to measure or dose certain quantities of viscous substances, such as powder metals, metal (melt;) or glass ceramics, glass melts or pasty substances, since the medium is corrosive or sensitive to oxygen or air. or to be able to dose a certain amount of the medium from an evacuable, closed container.
• shut-off options for containers of such media provide seals that can be rubbed off, in particular rubber, or similar seals. If abraded particles penetrate into the medium, they are often extremely dangerous for their further processing, especially when highly stressed. Components that are made from such substances then still contain abrasion particles of the type mentioned in the end product.
• the object of the invention is to provide a shut-off and / or dosing device for viscous substances with a seal that is vacuum-tight, ie suitable for reduced pressure and avoids abrasion of particles of the sealing material such as rubber and thus an impairment of the material to be processed.
• the main advantages of the invention are: rubbing of the seals on the sealing surfaces is excluded, and thus also abrasion of particles of the sealing material.
• the filling pipe is pressed onto the sealing surfaces, to be precise with the advantage of resilient springs which are arranged essentially perpendicular to the sealing surfaces.
• the new valve cannot be shut off immediately and the vacuum tightness is made easier by the fact that the valve has no outside bushing. Furthermore, the valve can be very easily closed.
• the device has a sealing part, which consists of two hardened -3-
• Discs 2 and 3 exist between which a hardened metal slide 4 is movably arranged.
• the hardened metal disks 2 and 3 are tensioned against one another with tension springs 5 without play.
• the slide 4 can be actuated by means of the transmission linkage 7 and the piston 6 pressurized by compressed air, which works against the compression spring 8, which brings the 3rd slide 4 back into the closed position when the pressure of the compressed air is reduced.
• the transmission linkage 7 manually (for example in the event of a fault or failure of the pneumatics or the compressed air) and thus to bring the slide 4 into any desired position.
• the container which carries the viscous substance to be filled or metered, such as powder metal or other viscous sensitive substances, is shown in the drawing with its filling funnel 37.
• the cylinder of the filling container is shown at 38, it will connect to the funnel upwards.
• the device has a movable sealing plate 21 n - a filling tube 22.
• the sealing plate is connected by means of wire pins 20 to a fork head 19 which can be brought into the desired position relative to the sealing flange 24 or from the valve body 23 via an actuating linkage 15.
• the actuating rod 15 has two annular grooves 16 outside the valve, which hold them in the two positions “open” and “closed” in the actuator support plate 13.
• the actuating rod 15 is locked with the bolt 14.
• the actuation lock 27 allows the cross member 28 to be moved downward in that the locking yoke 12 is placed over the pin 11.
• the sealing plate 21 closes the valve, it cannot be opened by actuating the button 17 either.
• the actuating rod 15 is brought upwards in the direction of the arrow by means of the button 17.
• the fork head mounted on the pivot point 29 moves downward and detaches the sealing plate 21 from the sealing flange 24 by means of the wire pins 20.
• the four wire pins 20 are preferably used, evenly distributed over the circumference.
• the filling pipe 22 is thus detached from the sealing plate 21 in a receptacle 26 and the sealing plate can now be pulled into the open position with the actuating rod 15 and the wire pins 20.
• the sealing plate slides onto the iu el guides Jo, 31, 32 and 33. This results in rolling friction and therefore no abrasion or other wear and tear, making it impossible for the parts to “seize” together.
• the actuation lock 14 is interlocked by means of spring force via the actuation rod 15 and also locked.
• the fork head which has been pivoted upward, presses the sealing plate 21 against the sealing flange 24 by means of the filling tube 22.
• the sealing rings 25 and 34 reliably prevent powder or liquids or other medium from penetrating into the space 35. So no outside Medium penetrates into the space 35, the membrane 36 is provided.
• the filling pipe 22 is guided by the membrane 36, so that it can be moved vertically in an elastically sliding manner, but is absolutely leak-proof.
• the pneumatic actuation which follows in the drawing at the top right is shown there, the compressed air line was screwed into the thread shown so that the compressed air can act on the piston 6.
• the pneumatic actuation of the shut-off and metering device enables a sensitive adjustment and very quick closing of the valve, in particular with the aid of the slide 4.
• the pneumatic actuation could also be provided for the sealing plate 21. Instead of back and forth.
• spool valves can also be used rotary valve or plate valves.
• Electromechanical or hydraulic control of the actuation can also be used, as can mutual electromechanical locking for the actuation of. Slider 4 and sealing plate 21 and / or joint or actuated control depending on each other in order to perform a quantity and / or volume metering of the respective substance.
• the filling tube 22 can be connected directly to a packaging device or to a further processing or processing device for the material released and / or dosed from the container.
• the device according to the invention can be used particularly well for powder metal processing but also glass, ceramic or other powdery, granular or other particulate materials or other viscous materials Mercury or pastes or poorly flowing pharmaceutical preparations or similar substances.
• a normal horizontal guide could also be provided and the filling tube 22 could in turn be provided with a cylindrical spring (helix) which surrounds it concentrically and against which the sealing disk 21 presses , are provided.
• the entire device does not have to have a vertical main axis for the shut-off and metering device, as shown in the single figure /, but rather
• the slide 4 can also be mounted on rollers or balls in a similar way to the slide 21.
• the slide or plate materials can be selected in a suitable manner known to the person skilled in the art, so that no abrasion occurs due to the valve actuation. Of course, this also includes the adjustment of the slide or plate materials to the seat materials. What is essential is a particularly easy sliding or rolling of the sealing elements mentioned, u. U. 5 can be completely dispensed with sealing rings. O 87/00143 __, _ PCT / DE86 / 00279
• the filling tube 22 can be closed at the bottom by a stopper and also evacuated, even after it has been connected to a receptacle or a device for holding the goods to be filled, such as collectors, molds, etc., which can fit tightly against the membrane 36 from below.
• Control 41 for the purpose of joint actuation and locking, as previously described, is of a type known per se (shown as a black box).
• the servo drive 44 is connected to spindles 47 or gear wheels 45, 46 in order to produce a lifting or rotating movement with respect to the slide 21, while the slide 4 only has to be moved back and forth.
• the combination with a rotary slide valve 21 is preferred, driven by a flexible shaft 47 and gear wheels 46 and 45; as well as with a compression spring which surrounds the end 24 of the central part for the purpose of generating counterpressure on 21 and 22.
• shut-off means 4, 21 by bolts 14-17
• shut-off means which are assigned to the containers 38, 39, as well as a stopper or valve plug for the filling tube 22 (e.g. at the bottom ) -
• the drawings show:
• Fig. 1 shows a device according to an embodiment of the invention in the closed or rest position
• Fig. 2 shows a device according to Fig. 1 in partial section in the open position
• FIG. 3 shows a partial section according to FIG. 2 in the plane of movement of the slide 21 on part 23
• Metal bellows 36 Membrane 0 Nut 37> Filling funnel 1 pin 38 Reservoir 2 yoke 39 Collector 3 Actuator support plate 40 Pneumatics / hydraulics 4 Bolts 41 Control unit 5 Actuator rod 42 Control valves 6 Ring grooves 43 Control valves 7 button 44 Servo drive 8 Metal bellows 45) Gears 9 Clevis 46 Gears 0 ) Wire pins 47) Spindle (flexible) 1 plate - shut-off 2 filling pipe

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Basic Packing Technique (AREA)
• Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6275369

Family Applications (1)

Country Status (3)

Citations (1)

Family Cites Families (1)

• 1985
  • 1985-07-10 DE DE19853524564 patent/DE3524564A1/de active Granted
• 1986
  • 1986-07-04 WO PCT/DE1986/000279 patent/WO1987000143A1/de not_active Ceased
  • 1986-07-04 EP EP19860904090 patent/EP0229791B1/de not_active Expired

Patent Citations (1)

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