UA77803C2 - Machine for corking of containers - Google Patents

Abstract

A machine for corking by threaded covers of containers made of plastic, with rectilinear direction of their movement, is used at production of food beverages, liquid pharmaceutical and chemical preparations, fertilizers etc. After setting the cover (7) on the neck of container (3) the latter is fixed with disks (17) motionlessly relative to conveyer (2). The twisting of covers is achieved by a pair of drive belts (8). They are located symmetrically from the axis of conveyer, on the height - at the level of threaded part of the neck of capacity. From each side, opposite to conveyer, end-to-end to the belt (8), a row of supporting non-driven rollers is located (11). The opposite rollers of two rows are spring-loaded towards each other. The distances between the opposite rollers of two rows and between the adjacent rollers of one row are accepted under condition of the coverage by belt not less than 1/8 of the perimeter of cover when the container is present in the area of this roller. For guaranteeing the corking of containers with different diameters of neck the possibility of adjusting the distance between rollers (11) of one row and between the rows of rollers is provided.

Description

Description of the invention

The invention relates to machines for capping bottles and cans with threaded caps, made of 2 plastics, in particular, polyethylene terephthalate, with a rectilinear route of movement of containers, from their introduction to removal from the machine, and can be used in the production of food beverages, liquid pharmaceuticals and chemical preparations , fertilizers, etc.

A container capping machine with a rectilinear bottle travel route is known, which includes a conveyor for feeding the bottles to the capping area with their screw caps, moving the bottles and 710 withdrawing the capped bottles from the machine, and a device for feeding the caps to the capping area formed by a cap hopper and an inclined chute . The screwing of the cap on the neck of the bottle is carried out by several drive rollers installed in two rows symmetrically relative to the axis of the conveyor for moving the containers, at the level of the location of the caps. Each of these rollers is mounted on a shaft, which is driven by a pulley located at its upper end. The pulleys have different diameters and are rotated by two 72 closed belts connected to the gearbox by a drive. Immobility of the bottle when the cap is screwed onto the neck is ensured by compression of the bottle from opposite sides between the adjacent tapes of two closed belts (5 3 905177, IPC B6783/20, publ. 16.09.75).

The closest, in terms of a set of essential characteristics, to the proposed one is a machine for capping containers with a straight route of movement of bottles, which includes a conveyor for feeding bottles to the area of capping with their threaded caps, moving bottles and removing the capped bottles from the machine, and a device for feeding caps to the capping area. After putting the cap on the neck of the bottle, the position of the latter is fixed from the opposite sides by tapes of two closed belts. Drive rollers installed in two rows on both sides of the conveyor, symmetrical to the bottle movement vector, are used to screw the cap.

The rollers of one row rotate in one direction, and the second - in the opposite direction, due to which a pair of rollers from different rows when in contact with the cover creates a twisting moment (05 5669209, МПК вВ6783/20, 86587/28,. (3 publ. 09.23.97 .

The disadvantage of the prototype, as well as the machine according to OZ 3905177, is the complexity of the device for screwing the cover. The roller drive system is particularly complex, each subsequent one in the direction of movement of the bottles, a pair of which must rotate at a higher speed than the previous one. In addition, to prevent damage to the lids, the outer layers of the rollers in contact with the lids, as indicated in the patent description, must be made of different modifications of rubber: from soft in the first, in the direction of movement of the containers, pair of rollers, to solid - in the last pair.

The task of the invention is to create a capping machine in which, due to changes in the individual elements of the system and the connections between them, a simplification of the design is achieved. Cha

For this, in a machine for capping containers, which contains a conveyor for feeding containers to the zone

From clogging them with threaded lids, moving containers and removing the closed containers from the machine and - devices for feeding the lids to the clogging zone, for putting the lid on the neck of the container, for fixing the container when the lid is screwed onto it and for screwing the lids and means of driving and synchronizing the mentioned devices , according to the invention, the device for twisting the lids is made in the form of a pair of drive belts, "Ф installed symmetrically from the axis of the mentioned conveyor, and in height - at the level that corresponds to the threaded 0 part of the neck, with the possibility of their rotation in opposite directions, and behind the belts , on each side, but) from the opposite conveyor, close to the belt, parallel to the axis of the conveyor, there is a row of supporting

I" of non-driven rollers, the axes of opposite rollers of two rows are spring-loaded against each other, and the distances between opposite rollers of two rows and between adjacent rollers of one row are taken under the condition that the belt covers at least 1/8 of the perimeter of the cover when the container is located in the area of a given roller.

In addition, to ensure clogging of containers with different diameters of the neck, the rollers are installed with the possibility of adjusting the distance between the rollers of one row and between the rows of these rollers. -and This implementation of the device for screwing the cover is much simpler than in the prototype. In addition, contact with belt covers frees from the manufacture of rollers that differ from each other in the material from which they are made. aw! 20 The invention is explained by drawings, where on:

Fig. 1 shows the general view of the machine in axonometry; c» Fig. 2 - an axonometric view from below of devices for fixing the container and for screwing the lid (the teeth are tentatively shown on part of the working surface of the disk. One of the pair of fixing disks, on the left side, is tentatively not shown); 25 Fig. 3 - an axonometric view of a part of the machine from above;

GF) Fig. 4 - devices for fixing the container and for screwing the cover in a side view;

Fig. 5...8 is a schematic representation of the stages of movement of the container through the device for screwing the lids. o Arrows show the directions of movement of containers and rollers and screwing of lids.

A linear conveyor 2 is mounted on the frame 1 for feeding containers Z to the blocking zone, moving them 60 and removing the blocked containers from the machine. Above the conveyor, a chute 4 is installed for feeding threaded lids from the hopper 5. After moving through the roller b, with the help of which the lid 7 is placed on the neck of the container, the latter is moved by the conveyor 2 to the position of screwing the lid - The screwing of the lids is carried out by a pair of closed belts 8, each of which runs around a pair of rollers 9. One of each pair of these rollers is connected to the drive motor 10 in such a way that the rollers of one pair rotate in opposite directions. The belts 8 are located on different sides of the conveyor 2, symmetrically to its axis, and from the above it is clear that the directions of movement of the branches of the belts wrapped around each other are opposite. In terms of height, the passes are placed at a level that corresponds to the threaded part of the neck of the container. In addition to the rollers, idle support rollers 11, which are placed in two rows parallel to the axis of the conveyor, run around the tracks 8, with 4 rollers in each row.

Rollers of different rows form pairs in which the rollers are located opposite each other. Each of the support rollers 11 is installed on the lower end of the lever 12. Springs 13 are installed between the upper ends of the levers of one pair, under the action of which the levers in their normal position are inclined with their lower ends towards each other, as a result of which the distance between the surfaces of the rollers is less than the diameter of the cover (not shown). . The distances between the opposite rollers 11 of two rows and between the adjacent rollers of one row are accepted on the condition that the belt covers not less than 7/0 less than 1/8 of the perimeter of the cover when the container is located in the area of this roller. The hinges 14 of the levers are installed on the slats 15. The distance between the rollers of one pair can be adjusted both with the help of screws 16 and by moving the slats 15. It is also possible to change the distance between the rollers of one row (not shown).

Below the level of rollers 9 and 11 and belts 8, at the level of the non-threaded part of the neck of containers З, there are discs 75.17, with a serrated or grooved side surface, which rotate in opposite directions.

When the next container Z approaches the first pair of rollers 11 (see Fig. 5) in the direction of movement, the latter, under the action of the cover 7, which is between the rollers, move apart from each other, overcoming the force of the springs 13. The levers 12 of the first pair of rollers at the same time, they occupy a vertical, or close to vertical, position.

As a result of the compression of the springs 13, the value of the force with which the belts 8 are pressed against the cover under the action of the rollers 11 increases. Under the action of the torque created by the passes, the cover 7 moves to a certain angle along the thread on the neck of the container. The rotation of the cover relative to the container becomes possible thanks to the fixing of the container by discs 17.

After a slight movement of the container on the conveyor, it is in the position shown in Fig.b. In this position, the belts 8 are already pressed against the lid by the first two pairs of rollers 11. The screwing of the lid with 2 is CONTINUOUS until the container with the lid passes the last pair of rollers. at

Claims (1)

The formula of the invention , , so z o 1. A machine for capping containers with screw lids, containing a conveyor for feeding containers to the clogging zone, their movement and removal of the blocked containers from the machine and a device for feeding the lids to the clogging zone, for putting the lid on the neck of the container, for fixing the container when the lid is screwed onto it and for screwing the lids, and means of driving and synchronizing the mentioned devices, which is characterized by the fact that the device for screwing the lids is made in the form of a pair of drive belts, o z5 Installed symmetrically to the axis of the conveyor, and in height - on level, which corresponds to the threaded part of the neck, with the possibility of their rotation in opposite directions, and behind the belts, on each side opposite the conveyor, close to the belt, parallel to the axis of the conveyor, there is a row of supporting non-driven rollers, the axes of the opposite rollers of the two rows are spring-loaded against each other one, and the distances between opposite rollers of two rows and between single-row umbilical rollers are accepted under the condition that the belt covers at least 1/8" 70 of the perimeter of the cover when the container is located in the area of this roller. stitch c 2. The machine according to claim 1, which differs in that the rollers are installed with the possibility of adjusting the distance between the rollers of one row and between the rows of these rollers. i" -I -I (ee) o 50 syu" F) ime) 60 b5