SU150083A1 - Unit for stacking sheets on a pallet or lifting table - Google Patents

Description

Machines are known for automatically stacking sheets on a pallet or palletized table consisting of a paper unwinder, feed rollers, a paper cutter, and a roll table.

However, the known aggregates did not have industrial applications due to the complexity of their device.

The proposed unit for laying sheets on or a lifting table provides for the mechanization of the process of laying sheets in a continuous process stream while simultaneously covering the sheet with oiled paper. For this purpose, metal liiiaki, a sheet of a sheet with a lifting table for laying the sheet into packages of various heights are used in the unit. A rack-trolley for cleaning packages of sheets from a lifting table is U-shaped. The unit can provide two-sided sheet laying.

FIG. 1 shows the proposed unit; in fig. 2 - sheet stacking scheme; in fig. 3 - diagram of the pulse equipment.

The assembly includes: an uncoiler / rolls of paper consisting of cones with electromagnetic brakes for braking a roll of paper after it has been cut; feed rollers 2c with a pneumatic device and a motor driven 3 for covering sheets with paper and for feeding a sheet onto a roller table; lever-type knife 4 for cutting paper from a pneumatically driven roll, roller table 5 for feeding sheets to a sheet-laying machine driven by electric motor 6 through a gear train; an emphasis 7 for stopping and fixing the sheets in a certain position before placing them in the foot at the end of the installed roller table; a sheet-laying machine 8 of the lever, a tila with rulers and driven by an electric motor 9, which serves to remove sheets from the roll table and stack into the foot; lift table 10 screw-type driven by an electric motor 11, designed to receive sheets from rulers of a sheet-laying machine and a set of packages of various heights;

No. 150083

a trolley 12 with a drive from an electric motor 13 for cleaning the collected sheets of sheets from a lifting table and side supports 14 installed at the lifting table, which are used to precisely stack the sheets in the stack along the side edges.

Before the unit starts its operation, a roll of oiled paper is installed in the cones with a Bat and the front end of the paper is loaded into the feed rollers 2, and a pallet is installed on the lifting table. The labeled sheet is conveyed to the feed rollers, the passage through which the sheet is covered with oiled paper and fed to the roller conveyor 5. When the sheet leaves the feed rollers, the paper is cut off from the roll with a knife 4, leaving the end of the paper tucked in the feed rollers. Then the sheet is transported by the roller conveyor up to the stop 7. The stop is retracted from the front end of the sheet by means of pneumatic cylinders, providing free removal of the sheet from the roller table by the sheet-laying lines. After that, the sheet stacker is turned on, while Liiyaki first lift the sheet above the roller table to position I, and then tilt a certain angle to position P. The sheet, under the influence of its own weight, moves along the rollers 15 embedded in the rulers to the side stops 14. Then change the direction of movement of the sheet-laying machine, as a result of which the rulers go out from under the sheet, returning to their original position, and the sheet is smoothly placed on the pallet.

As the sheets accumulate in the stack, the lifting table is lowered. After dialing a package of a given height, the table is raised to the corresponding fixed upper position.

In order to receive the accumulated foot, the trolley 12 is inserted into the lift table and the sheets are taken away.

When laying sheets in bags without laying oiled paper, the front end of the roll is not loaded into the feed rollers, and the knife drive for the paper pieces is turned off.

For two-sided operation of the unit, the sheet-laying machines install a roller table on both sides.

For automatic operation of the unit, the following pulse devices are installed; a photo relay 16 in front of the feed rollers, which when the beam of the luminaire 17 is darkened by the front end of the sheet /. impulse to turn on the feed rollers and the roller table, and after passing the rear end of the sheet again lights up and turns on the knife drive for cutting paper; a limit switch 18 on the knife drive, from which, after cutting paper, an impulse is given to stop the feed rollers (slowing down the roll with paper) and to return the knife to its original position; two end switches W on the end stop 7, which give an impulse to stop the roller table and to retract the stop; two end switches 20 for fixing the retracted position of the stop and giving impulse to turn on the drive of the laying machine; the command device 21 on the drive lines of the sheet laying machine, giving impulses to stop the rulers at a certain angle, to return the rulers and the stop 7 to its original position; photo relay 22 above the lifting table, which, when the beam of the luminaire 23 darkens, the collected foot of sheets gives an impulse to lower the table with the package onto a certain schag; the command device 24 on the drive lift table, which gives impetus to stop the table after it is lowered; the command device 25 on the drive of the cart, giving impetus to the stop of the cart in the extreme position; sync pointers 26 on the control panel to monitor the height of the packets to be scrambled.

In conclusion, the Uralmash Plant notes the usefulness of the proposed unit used for the packaging of oiled sheets.

Subject invention

Claims (2)

1. An apparatus for stacking sheets on a pallet or a lifting table consisting of an unwinder for paper, a roller, a knife for cutting paper and a roller table, which is different in that in order to mechanize the laying of sheets in a continuous process flow with simultaneous sheet coating oiled paper, metal rulers and a sheet-laying machine with a lifting table for laying sheets with different package heights. 2. The unit for laying sheets according to claim i, characterized in that for cleaning the bags from the lifting table, the cart structure is U-shaped with a rack and pinion drive and it can be made with two-sided laying of sheets. - 3 -NO 150083 , Shoulder I ng