SU49339A1 - Automatic scales with rotating drum - Google Patents

Description

In the proposed automatic scales with a rotating drum, a tray is used to isolate the action of the flow of the powder on the weight drum, which is placed either on an additional rocker arm coupled to the main rocker or directly on the end of the main rocker arm.

In the schematic drawing of FIG. 1, a front view of an automatic scale with a rotating drum; FIG. 2 shows a device for damping pushes when the drum is rotated; FIG. 3-modified weights.

An anti-bucket 3 is mounted on the frame / fitted with partitioning walls and dampers 2 / large and 9 small rashes that inhibit grain movement. The drum 2 with four or three partitions is suspended on hangers / 2 at the end of the shoulder of the main rocker arm 4, the other shoulder of which carries the kettle cup 15. The main rocker arm 4 is articulated with an additional rocker S, on which the tray 5 is fixed on the legs.

A finger / J is fastened on the side bottom of the drum, which serves as a support for the lever //, which is articulated to the bed frame at one end and articulated by means of the string 22 with the gate 2 / large rash. When the drum is lowered under the weight of a part of the grain that has been poured into it, the free curved end

The lever 7 / slides off the finger 75 and when it turns, using the pull 22, it closes the flap 27 of a large rash. In order to completely stop the entry of grain into the drum, a second flap 9 is arranged, resting in an open position on the pawl 24 articulated with the switch 10, removing this pawl from engagement with the flap 9 when the balance arm is in equilibrium.

To absorb shocks that occur when the drum is rotated, rods 19 are placed on the side of the bottom of the drum, fitted with hooks that hook when the drum is rotated to the corresponding protrusions on the bottom of the latter and articulated by means of t 20 with a system of shaped levers IS.

To account for the number of plummets, the balance is equipped with a counter, actuated by the fingers 75 and 13a.

The grain enters the receiving bucket 5, slows down its movement against the septum and falls through the flap 27 onto the tray 5, from which it is poured into one of the compartments of the drum 2. When grains are put into the bucket compartment a little less than the weight to which the scales are adjusted, the drum 2 will be lowered; the grain flows through the tray 5 and presses on it, and the pressure is transferred by the rocker 8 to the kettle bowl, which

rocker 8 raises. When the drum sits a little, the finger 13 skips the lever 77, which is supported on the finger, and the lever 77 falls. Since the lever 77 is pivotally connected with the hinge 22 to the flap 27 of a large rash, the latter closes when the weight falls, and the grain is poured through two small holes. Grain flows in a small amount and can almost accurately pour the rest of the weight. When the weight in the drum approaches the required, the drum drops even lower and the switch W turns off the second flap 9, which drops and closes the grain rash at all. Simultaneously with the fall of the second flap, the hook M is raised, holding the drum by the finger 75, and the released drum is rotated as indicated in FIG. 1 direction; grain from a separate drum spills out. During rotation, the drum rises and, hooking the finger 75 and the lever 7 /, lifts both dampers again 9. The grain begins to flow into the other compartment of the bucket. Counter 6, under the action of the fingers 75, 13a, marks the turn of the drum by a quarter or a third of a turn.

In a modification of the scale shown in FIG. 3, in order to simplify their design and reduce their weight, the tray 5 is placed directly on the end of the main rocker 4, thus eliminating the use of the additional rocker 8 (Fig. 1) and reducing the number of pulses and prisms.

The subject matter of the invention.

Claims (4)

1./Automatic scale with a rotating drum, characterized by the use of tray 5, designed to isolate the action of the stream of loose on the weight drum and strengthened on the additional rocker arm 5, articulated with the main beam 4. 2. In the scales according to claim 1, use the lever 77, supported during the period of a large rash on the finger 75 of the end wall of the drum and articulated with the valve 27 of the large rash, in order to close the latter when the balance beam balance approaches to balance. 3. In the balance of claim 1, a device for damping jerks when the drum is rotated, characterized by the use of rods J9 (Fig. 2) equipped with hooks that hook when the drum is rotated over the corresponding protrusions of the wall of the latter, and articulated with levers 75, carrying shock-absorbing jerks of weight / 6. 4. Variation of weights according to claim 1, characterized in that instead of using the additional rocker 8, stream 5 is placed directly on the end of the main rocker arm 4 (Fig. 3).