DE2126581A1 - Valve for viscous media - Google Patents

Description

212658Ί PATENT Attorney DIPL.-PHYS. HEINRICH SEIDS

62 Wiesbaden · Rheinstrasse 121 · P.O. Box 670 · Telephone 30 34 59 Postscheck Frankfurt / Main 181008 · Bank Deutsche Bank 3 956372

Wiesbaden, May 21, 1971 M 196 S / Mz

MONO CONTAINERS LIMITED Ruislip, Middlesex / England

Valve for viscous media priority 1.6.197ο - England - No. 26323 / 7o (United King-

The invention "relates to valves for viscous media and is particularly, but not exclusively, concerned with valves for use in pulling containers of viscous flowable Material such as ice cream, yogurt and foam creams. A problem with such valves is that when the container is filled, there is still a dangling residue of material left on the valve, which is caused by leakage from the valve residual material is generated. When the filled container moves to the next section of the filling process, there is a tendency '' such a dangling remnant of material tends to fall onto the edge of the container, causing difficulties, when a lid is to be attached to the container.

1098 5 0/0200

Dipl.-Phys. Heinrich Seid =. Patent attorney 62 Wiesbaden Rheinstraße 121 - P.O. Box t> 70 Telephone 303459

The object of the invention is to provide a valve for controlling the Filling containers with viscous flowable material to create that is essentially free from below pulling residual material is, with such a valve having a passage and one for rapid movement to open and again Closing the passage contains arranged valve element.

According to the invention is attached to the valve independently of the movement of the valve element, when closing the Passage provided automatically effective pressure reducing device for cutting off the material supply to the container. In this way it is avoided that the valve element releases excess material, which is teardrop-shaped or thread-shaped could get stuck on the valve passage.

The valve may have a housing into which the flowable material can enter through the passage and which has an outlet for the flowable material through which the material exits to fill the container. In this embodiment the pressure in the chamber can be reduced after the valve element has closed the passage, for example by the movement of a piston in a cylinder in fluid communication with the chamber. The valve element can be a hollow piston that is rotatably or reciprocally mounted in the housing and one in its wall

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ORIGINAL INSPECTED

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Dipl.-Pins. Heinrich Scids · Patent Attorney · 62 Wiesbaden ■ Rheinstrasse 121 · P.O. Box 670 · Telephone 3034

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Has passage which is suitable with the valve passage to cooperate to open and close it. The rotary or other motion of such a hollow piston and the reciprocating motion of a pressure reducing piston are advantageously synchronized with one another, in which both parts are driven by a common drive, for example via a cam.

When the container has been filled, there can be relative movement between the container and the valve, see above that hanging material can be cut off. The relative movement is preferably achieved by a movement of the container generated.

The invention can be carried out in practice in various ways, and an exemplary embodiment is explained below with reference to the drawing, in the single figure of which a longitudinal section through the valve with the actuating mechanism is shown schematically. The valve, indicated by the general reference number 1, comprises a housing 2 of substantially cylindrical shape with a nozzle 3 at its lower end and two passages 4 and 5 _t extending transversely from its side wall, namely an upper passage and a lower one Passage 5. Passage 4 ends in an inlet 1o for viscous flowable material, so that such

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Dipl.-Phys. Heinrich Seids · Patent attorney ■ 62 Wiesbaden · Rheinstrasse 121 ■ P.O. Box 670 · Telephone 303459

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Material pumped along the passage 4 into the Yen.tilgeh.ause 2 can enter through the nozzle 3 in the to be filled container to be discharged.

The passage 5 ends in an inlet 2o in the valve housing, wherein this inlet between the inlet 1 o for the viscous material and the nozzle 3 is located. The passage 5 contains a piston 6, which is carried by a piston rod 7, the reciprocating movement in the passage 5 by means of a cam containing Mechanism 8 is arranged.

A hollow piston 9 is mounted inside the valve housing 2 and connected to a piston rod 11 which is attached to it is to rotate by means of a mechanism 12 and a connecting rod 13. The wall of the hollow piston 9 contains a circular opening 14 intended to cooperate with the opening in passage 4 during some rotational positions of the piston is trained. In the position shown in the drawing, the flowable material can pass along the passage 4 the opening 14 and pass down through the nozzle 3 into the container 15 to be filled. After the container is filled has been, the hollow piston 9 is rotated until it reaches a position in which the inlet for the flowable material at the end of the passage 4 through the closed wall

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Dipl.-Phys. Heinrich Seids · Patent Attorney · 62 Wiesbaden · Rheinstrasse 121 ■ P.O. Box 670 · Telephone 303459

of the piston 9 is closed.

However, a certain amount of flowable material remains in the housing 2 and forms a residue that may hang down, which can fall on the edge of the container 15 when the container is moved away from the nozzle 3. Through the piston 6 is but avoided this. When the flow of the flowable material to the valve housing from passage 4 has just stopped, ' the piston 6 moves away from the valve housing in the direction of arrow A and thus creates a suction against it flowable medium, which is then sucked further into the housing, so that no hanging material residues are formed will.

When a container has been filled, the carrier 16 carrying the container is lowered from the nozzle 3, so that if any Material hanging down in the manner of a thread from the nozzle into the container is interrupted before the piston 6 is moved.

When the next empty container is in the zero position, it rotates again the hollow piston 9 until its opening 14 coincides with the inlet in the passage 4, and the piston 6 moves against it the housing 2, the mechanism 8 and the mechanism 12

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Dipl.-Phys. Heinrich Seids Patent Attorney 62 Wiesbaden - Rheinstrasse 121 - P.O. Box 670 Telephone 303459

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are connected to each other by a shaft 17, which means a bevel gear 21 which meshes with a bevel gear 22 which is itself driven by some motor can be. In particular, it can be driven by a gearing of a filling machine

All features of the subject of the application reproduced in the description, the drawing and the claims can be of essential importance for the invention on their own or in any conceivable combination.

Claims t

109850/0200

Claims (4)

Dip). Phys. Heinrich Seid * ■ Patent Attorney · 62 Wiesbaden · Rheinstrasse 121 · P.O. Box 670 · Telephone 30 34 -7- 1.) Valve for controlling the filling of containers with viscous, flowable material, the valve having a passage and includes a valve element arranged for rapid movement to open and close the passage, characterized through, an independent of the movement of the valve element (9) attached, when closing the passage (1o) automatically effective pressure reducing device (5, 6, 2o) for cutting off the material supply to the container (15). 2.) valve after. Claim, 1, dadqfch. marked that one Chamber (2) is provided into which the flowable medium can enter through the passage (1o) and which has an outlet (3) for the material to be filled into the container. 3.) valve after. Claim. 2, characterized in that the Pressure reducing device (6) for reducing the pressure in the chamber (2) is arranged 4.) valve after. Claim. 3, characterized in that the Pressure reducing device contains a piston (6) which is movable in a cylinder (5) and in flow connection with the chamber (2) -8- 109850/0200 Dipl.-Phys. Heinrich Seids · Patent Attorney ■ 62 Wiesbaden · Rheinstrasse 121 · P.O. Box 670 ■ Telephone 30 3459 -8th- 5 ·) Valve according to one of the preceding claims, characterized characterized in that the valve element is a cabbage (9) which is movable within the valve housing (2) ″ and has a passage (H) in cooperation with the passage (1o) of the valve housing. 1098 5 0/0200