SU134559A1 - Machine for assembling boxes from cardboard blanks - Google Patents

Description

Machines are known for assembling boxes of cardboard blanks with valves, consisting of a magazine of blanks, a chain conveyor with grippers for retrieving from the magazine in the axial direction of the bottom blank and fixed spiral guides for bending horizontal valves. These machines do not provide mechanical assembly and joining of boxes in one working process.

In the proposed machine above the conveyor with the grippers is located a stamp device. Following the conveyor, there are installed: a platform for forming a blank into a box, equipped with devices for straightening the blank in a vertical direction; a cross conveyor with devices for orienting the vertical bottom valves and the lid of the box and a stitching head for passing horizontal and vertical bottom flaps.

To mold the blank into the duct at the bottom of the platform, a suction cup for holding the blank and a vertical swivel suction cup for pre-straightening the blank, as well as a stop bar opposing the shift of the blank onto the transverse conveyor and the cross-section plate rolling along the conveyor in a vertical plane , fully straightening the workpiece.

The devices for orientation of vertical valves are made in the form of two carriages with crimped plates, one of which bends the vertical bottom valves inwards, the box, and the other - the vertical valves of the cover outside the box.

At the end of the cross transporter, a sewing head is mounted with a swinging stop for flashing the bottom flaps with brackets made up of several wire-stitching machines arranged in two horizontal rows.

Such a device ensures the mechanization of assembling and crushing boxes in one working process.

No. 134559-2. In the drawing a basic kinematic diagram of the machine under examination is shown.

The machine consists of a conveyor 1 with grippers, a stamping device 2, a platform 3 with devices for straightening the billet and forming it into a box, a transverse conveyor 4 with devices for orienting bottom valves and a box cover and a stitching head 5 for stitching vertical and horizontal bottom valves . The blank 6, which is a cutting of the cardboard box, is placed in a cassette, after which it is fed to a box with a chain conveyor / with clamps for molding into a box. When the workpiece 6 is moved, a stencil is rolled onto it by the Stencil device 2.

On the bottom of the box 3, there are the bottom suction cup 7 and the top upper suction cup 8 on the top. The top suction cup captures the upper part of the workpiece, and the lower sucker holds the lower part of the workpiece. There is a preliminary disclosure of parts of the box. Then, the rocker bar 9 raises the right side of the box to a vertical position. When this box rests on the bar 10, opposing the shift of the workpiece 6 on the transverse conveyor 4. After this is done, the vertical valves are crimped by strips 13 and 14 using a device made in the form of two carriages And and 12. These carriages begin to move opposite each other. strips that fold in vertically positioned valves. The carriage 11 with a crimp bar 13 bends the vertical bottom valves inside the box, and the carriage 12 with a crimp bar 14 bends the vertical valves of the lid out of the box.

The preform 6 formed at the site 3 with oriented vertical valves is fed by means of a conveyor 4 to a sewing head 5 consisting of four wire stitching machines. As it moves, guides 15 and 16 fold in horizontal valves. In this form, the workpiece is guided under the stitching machines of the sewing head, and a swinging stop 17 is inserted inside the box, which presses the box to the wire stitches. The bottom of the box is stitched in two steps. First, the upper row is stitched with four brackets, and then with the help of mechanism 18 the box rises 15 mm upwards and the second row is pierced (also with four brackets).

Drive conveyors} to 4; ;; from the electric motor 19 through the transmission system and the electromagnetic clutch 20, turned off by the end switch 21 and turned on by the final switch 22. The devices for forming the workpiece in the duct on the platform are driven from the same electric motor through the single turn clutch 23. The stitching head 5, the swinging stop 17 are driven and The mechanism 18 is carried out from the electric motor 24 through the transmission system and the one-turn clutch 25, which is switched on from the end switch 22.

Subject invention

1. A machine for assembling boxes from cardboard blanks with valves, including a magazine for blanks, a chain conveyor with grippers for retrieving from the magazine in the axial direction the lower part and fixed spiral-shaped guides for bending horizontal valves, characterized in that mechanization in one workflow assembly and stitching