SU125512A1 - Bagging machine, e.g. from cement bags - Google Patents

Description

The invention relates to bagging machines, for example, from bags of cement, including a frame, bag conveyors one by one, a receiving tray with two flaps, periodically filled with bags, and after filling, unloading them in rows into a receiving trolley.

The described machine is different from the known ones in that it forms packages on a pallet. For this purpose, the receiver is made in the form of a trolley, periodically moved reciprocating to the width of the bags in the package row and mounted on a stationary horizontal table, on the cassette adjacent to the table for pallets, which are pulled onto the carriage by endless chains, which alternately take from the cassette the lower pallet, pushing the pallet with the package from the cart to the outlet roller conveyor.

To automatically turn on the trolley feed motors, chains for the pallet, as well as the tray lifting engine and the feed conveyor bags to the level of the stack of bags, the machine is equipped with two protrusion discs for switching on the engines mounted on the roller of one of the tray flaps.

FIG. 1 shows a car, side view; in fig. 2 is the same, view along arrow A of FIG. one; in fig. 3 and 4 is a kinematic circuit in FIG. 5 and 6 is the control circuit of the machine mechanisms.

The machine takes cement bags from the carousel and packs them on pallets into bags, each of which consists of a row of eight bags each in a row. The conveyor / carousel-packing machine is adjacent to successively arranged lamellar conveyors 2 and 3, kinematically interconnected. Transporters are driven by an electric motor with a gearbox 4.

No. 12551.2- 2 -

Following the conveyor 3, a tray-receiving tray 5 is mounted for bags, which is a flat rectangular crate, open at the top and having two drop-down flaps 6 instead of the bottom. Two spacers fit along the tray along the length. The flaps 6 are equipped with counterweights (not shown in the drawing), the weight of which is designed to maintain the flaps in the closed position until the tray is loaded with two small trays. A chain conveyor 7 with a spatula S is mounted on top of tray 5. Under table there is a table 5, 14 conveyors 2 and 5, perpendicular to it. On the left side of the table there is a roller track W, and on the right side there are rails that carry cart L. This cart moves reciprocally along the table by means of a lead screw 12 rotated by an electric motor 13 by means of a gear coupling 14, switched by a trolley by means of a pull / 5.

Table 9 on the right side adjoins the cassette 16, which consists of four racks, between which pallets 17 are located one above the other; the lower pallet rests on the sprockets 18. When the sprockets turn, the next lower pallet is lowered onto the conveyor 19 located under the cassette with two spurs, which take the empty pallet and transfer it to the trolley //.

The machine is controlled by a mechanism mounted on roller 20 of one of the flaps 6 of tray 5. This mechanism consists of two discs 21 and 22. Disk 2} has three protrusions offset from one another by 90 °, and disk 22 - one protrusion offset by 90 ° with respect to the third protrusion of the disc 21. The protrusions interact with two limit switches 23. On the same roller, a ratchet wheel 24 is mounted with a dog.

The interaction of the maschine mechanisms is carried out in the following order. The next bag 25 with cement enters the conveyor 2, and from there the conveyor 5, which transfers it to tray 5. The diaphragm passes to the tray one quarter of the length and closes contact with a limit switch that turns on the electromagnetic clutch 26 in the drive of the chain conveyor 7 s blade 8.

The conveyor receives movement, and the paddle 8 moves the bag to the end of tray 5. The next cage enters the tray in the same way.

Upon receipt of the second trap for the tray, the counterweights on the doors 6 of the tray do not support the weight of the two bags, the doors open, and both bags fall onto the empty tray 17 on the trolley //, after which the doors close again with the counterweights. During the opening of the valves 6, the roller 20 rotates the ratchet wheel 24 and both disks 21 and 22 by 90 °. During each such turn of the disc 21, the electromagnetic clutch 27 in the drive of the trolley 11 is turned on through the limit switch 23 and the trolley with the pallet on which the cells are located is moved to the left each time by a distance equal to the width of the bag. The trolley stops when the rail located at the bottom of the trolley interacts with the limit switch roller (not shown in the drawing). After that, the next two small cells are fed to the tray 5, they are dropped from the tray onto the pallet 17 next to the first pair of small cells and the next movement of the cart // to the left. When a fourth pair of space cells falls on a pallet and the disc 21 turns to the last quarter of a turn, the limit switch 23 does not work, since there is no projection on this quarter of the disc 21 interacting with the switch 23; the electromagnetic clutch 27 is not included, and the cart 11 with the pallet, on which one row of eight bags of cement is laid, stands

in place. Therefore, h; m; l; I am a pair of msl.; 1: southe is placed on the fourth pair of the first row, forming the beginning of the second row. When the disk 21 is rotated to the last quarter of a turn, the disk 22 with the inni rotates the disk 22, which has a protrusion in this quarter, which is in step 1: a hoop with another limit switch 23. The latter engages the electric motor 28 of the hydraulic actuator 29 of the tray 5 and the conveyor o. The tray and the end of the conveyor 3 adjacent to the iiexiy are lifted by a distance equal to the thickness of the bag with cement for placing the second row of trays on the pallet 17. In the same way, the next rows of the trays are laid down to the fair row. From the beginning of laying a generous row, the electric motor of the cassette 16, which is interlocked with the movement of the conveyor belt 19, lowers the lower empty tray 17 with the help of sprockets 18 onto the conveyor 19.

When it is laid on the previous pallet, there are shchetod rachs of conveyor belts, the clips of the conveyor 19 capture the empty pallet and move it towards the cart I. The empty pallet pushes the pallet with the finished package onto the roller track 10 and replaces it.

At the moment of pushing the filled pallet, the tray 5 and the transorter 3 are lowered to the initial position, after which the conveyor 19 with the dips is also returned to the initial position by means of the limit switches.

Subject invention

Claims (2)

1. A bag for forming bags, for example, from cement bags, including a frame, feed boxes for feed boxes one by one, a tray with two doors for bags, periodically filled with bags, and after filling unloading them in rows into a receiving carriage, characterized in that, in order to form packages on a pallet, the receiver is made in the form of periodically moved back and forth on the width of the trays in a row of a trolley mounted on a stationary horizontal table, and adjacent to the table of the pallet cassette, endless chains slid onto the trolley, alternately picking up the bottom tray from the cassette, pushing the tray with the bag onto the outlet roller conveyor. 2. The machine according to claim 1, characterized in that the machine is equipped with two protrusions to turn on the trolley engines, chains for the pallet, and the tray lifting engine and the feed conveyor to the level of the stacked row of bags to automatically turn on engines mounted on the roller of one of the flaps of the tray.