SU57768A1 - Tobacco leaf stringing machine - Google Patents

Description

Machines for stringing on tobacco leaf cords are known, comprising a conveyor carrying leaves clamps and a fixed needle supported by needle holders that successively extend from the action of the conveyor projections on them. Such masks are sometimes provided with devices for feeding the leaves to the clamps of the conveyor, made in the form of a screw conveyor adjacent to the belt, transferring the leaves behind their slats to the clamps of the conveyor through the centering guides for the scabs. In order to control the clamps of the conveyor in such maschines, it is usual to use stops that are fixedly positioned along the path of the clamps. A machine for stringing tobacco leaves on a non-movable nglu and then on a cord according to the invention is provided with a conveyor carrier: clamps, opened under the action of stops, and characterized in that the stops for opening the clamps of the conveyor are fixed on an endless belt set in motion, coordinated with conveyor movement with clips. Such a structure ensures that the snail leaves of the core frame are evenly filled with tobacco leaves along their length and eliminates the need for additional tools for moving the leaves along the strings.

In FIG. 1 is a schematic front view of an exemplary embodiment of a machine according to the invention; FIG. 2 shows a side view of the needle holder for the machine; one; FIG. 3 is a front view of the needle holder system of the software mask of FIG. one; FIG. 4 is a top view of the main conveyor of the machine of FIG. one; FIG. 5 is a front view of the feeder of the machine of FIG. one.

The main conveyor 8 is made of two parallel chains carrying clamps / on separate links, designed to receive packs of tobacco leaves from the feeder 4, to string these packs onto the fixed needle 2 and to push the packs further along the clamp 11 6 endless belts 5. Clamps 1 are made in the form of spring-loaded tongs and are placed on some links of the main conveyor 5 at regular intervals. From the rollers of the end stars of the conveyor 8, they borrow their movement by means of gears (not;

shown in the drawing) all other working parts of the machine.

The fixed needle 2 is intended to penetrate the tobacco leaves supplied by the clamps / conveyor 8 and held by them in a suspended position. On the opposite end of the needle 7 of the needle 2 there is a hook 3 on which the cord 11 is put on the loop. At the points where the needle 2 interacts with the needle holders 9, the needle has a prismatic section. Needle holders 9 (Fig. 2) are designed as tongs, in which the sponges with their sleeves 10 are freely put on the roller 12, the ends fixed in the supports 13 (Fig. 3) mounted on the beam 14 arranged along the conveyor 5. The free ends 15 of both the jaws of each needle holder 9 are provided (Fig. 2) with grooves 15 for tightly covering the needle 2 when the jaws are closed by a spring 16. For periodically opening: needle holders 9 to their jaws Inside the slotted plates 17, which are intended to interact with some of the links of both eye chains vnogo conveyor 8, provided with side protrusions 18 (Fig. 4).

To skip the conveyor 8 with suspended tobacco leaves held by the clamps 1, the needle holders 9 open in pairs, i.e. even jointly and then odd and vice versa. When the clamps 1 with the leaves pass the space between the even-arranged jaws along the 8 needle holders, the odd needle-holders will open, and the even-numbered ones will close, etc., keeping the needle 2 motionless, but not holding the conveyor 5.

The feeding mechanism 4 serves to fill the leaves supplied by the worker into the clamps /. It is made in the form of an endless belt 19 (Fig. 5), guided by end pulleys 20, and a shorter endless belt 21, guided by pulleys 22 and adjacent to a belt 19. Along the belt 19 is a rotating auger 23 designed to transfer the feeds into In the intervals between its thread and the belt of 19 stalks with leaves into the space between the belts 19 and 21. Two stationary needles 25 and 26, connected by a bracket, are designed to fill the stalks into the openings of the guides 24 (Fig. 1). 27, located along the edges of the belts 19 and 21 and under the ends are led to clips 1, the closure of which is associated with pulling the stalks out of the gap between the needles 25 and 26. The protrusions 28 on the end of the pulley 22 of the belt 21 are designed to squeeze the stalks with leaves along the needles 25 and 26 allow some joint axial movement due to the elasticity of the spring 29 connecting the bracket 27 with the frame.

The movement of the endless belt 5 is located inside the main conveyor 5 and moves towards it. Its purpose is to timely and in a certain place along the length of the cord // unclench the clamp, in order to evenly distribute the strung tobacco leaves on the cord 11, mounted on the frame 30. The stop 6 with the tape 5 gradually moves to the needle 2 and unclamps the clamps releasing leaves of tobacco strung on a cord // all over — the last from frame 30 to end pulley 31 of tape 5. The speed of movement of tape 5 with stop 6 is designed so that the main conveyor 5 makes a full turn, putting on the cord // of tobacco leaves with your clips / at the same time, as the tape 5 passes a path equal to the length of the cord 11 filled with leaves. After the cord 11 is filled with leaves, the tape 5 with the stop 6 returns to its original position at the speed of the conveyor 8, in order to then again begin to unclamp the clamps / for planting the leaves onto the new cord. The return of the belt (5 to its original position is effected, for example, by automatically switching gears and the like (not shown in the drawing)).

The frame 30 is a conventional drying frame, fitted with hooks for hanging cords. It is mounted on the belt conveyor 32 under the spring 8. The extreme cord of the frame 30 is at one end removed from the hook of the frame and looped onto the hook of the .3 needle 2. After this, a working process of tobacco stringing occurs. When the cord 11 is fully strung, it is removed from the hook 3 of the needle 2 and is put on the hook of the frame 30, and the next empty cord on the other side of the machine is removed from the hook of the frame 30 and is put on the hook 5 of the needle 2. To move the conveyor 32 with the frame 30 across the conveyor 5, in terms of stringing individual cords, a corresponding transmission is intended to the conveyor 32 from an asterisk 33 interacting with a lever fixed to one of the clamps 1 of the conveyor 5. This lever is not indicated in the drawing, nor is the transfer indicated to the conveyor 32 about sprockets 33. At each turn of the conveyor 8, i.e., when stringing one cord //, the frame 30 moves and the next hook is brought in the plane of both branches of the conveyor 8. The filled frame 30 is retracted to the side and in its place nova Ancillary processes, i.e., removing cords 11 and putting needles 2 and pa on hook 3, and pa: We, associated with servicing the machine, are performed without stopping the machine itself.

When using the machine post. are as follows. The frame 30 with the cords 11 is placed on the conveyor 32. The end of the first cord 11 is removed from the hook of the frame 30 and the needle 2 is put on the hook. The worker with the basket with tobacco leaves is placed near the feeding mechanism 4. When the machine starts, the worker takes the leaves and puts them on the stalks on the endless belt 21, insertion of the scab under the auger 23. Due to some difference in the speed of movement of the belts 19 and 21, incorrectly packed leaf stalks will roll over these belts and as a result the alignment of the stalks will occur. Using needles 25 and 26 stalks

The sheets will be tucked into the clamps / trap 8, unclenched to receive petioles of the fixed guide 24. Leaves clamped in the clamps 1 of the conveyor belt. S, will move to the needle 2, piercing them with the tip 7. Needle holders 9 open in pairs by stops / 5 on the links of the main conveyor chains 8, skip the clamps / with leaves along the needle 2. Strung on the needle leaves from interacting with the clamps / continue to move along cord // see you, with stop 6. Slowly moved dento 5 towards the conveyor 5. Stop 6 opens alternately the clamps and the leaves together with the cord 11 come out of the clamps. The stop 6 on the movable belt 5, reach the end along the length of the cable in the direction of the needle 2, returns to the initial position with the corresponding gear, etc.

During one rotation of the main conveyor, one cord is strung with leaves. During this time, the movable belt 5 with the stop 6 will also pass a length equal to the length of the cable 11, ensuring that the cable is filled with tobacco leaves. The maintenance means that the worker, capable of servicing the three machines, removes the cord of the leaves from the hook 5 of the needle 2 and puts it on the hook of the frame 30. At the same time, the conveyor 32 automatically moves the frame 30 with the strung cord to a distance equal to between the hooks on the drying frame 30, and the worker removes the new cord Y / from the other hook of the frame, and hopes its end is on the hook of bar 2, etc.

The subject invention.

A machine for putting tobacco leaves down using a conveyor carrying clamps opened by means of stops, characterized in that the stops are fixed on an endless belt set in motion in coordination with the movement of the conveyor.

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