SU40025A1 - Stitching machine - Google Patents

Description

Machines for the manufacture of stitched boxes of rectangular cardboard sheets provided with cylindrical rollers c. disc and half disk knives and folding discs with blunt edges are known.

The distinction of the proposed machine is the device of the shaft of the second pair of rolls, equipped with lobe and transverse disc and half disc blades, as well as lobe and transverse discs with blunt edges, which serve to push the fold lines in the transverse direction. After exiting this shaft and in order to form the workpiece at the same time, the carton is cut into four boxes by a transverse straight knife into four blanks, transferred by two pairs of carriages for four stamps and to a stitching device, of which two carriages simultaneously move along the machine axis and two carriages perpendicular direction towards them.

In FIG. 1 is a side view of the machine; FIG. 2 is a view from above; FIG. 3-longitudinal section of the shaft of the second pair of rolls with fractional and transverse disc and half disc blades; FIG. 4-shape knives.

The machine is provided with a magazine / dl for a stack of rectangular cardboard sheets lying on shelf 2 and rising gradually upwards as the upper cardboard paper is delivered to the machine.

2)

sheet. The upward movement of the shelf 2 is achieved through the chain transmission 7, 8, 9, the roller 6, the cables 3 and the rollers 4 driven from the main shaft 70 of the machine.

Spring pin-shaped pads are installed in the back of the magazine, which hold the next sheet of cardboard when the i / 2 corrugated roller is taken from the top sheet. A sheet of cardboard is fed by a roller J2 to the shaped visor and from there under the take-up rollers 15- / 5. For guiding the sheet, a ruler 25 rotates on a transverse rod in a vertical plane. From under the rollers 75-75, the sheet is gripped by the drums 18-19, and the drums 19, which are axially movable, are equipped with disc blades 24 and 24, of which the blades 24 are cutting a sheet of cardboard, and knives 24 with. blunt blades, for pushing the folding lines of the boxes, while the J8 drum is equipped with corresponding cuts to deepen the blades of the knives in them.

The sheet cut and pressed in the longitudinal direction goes under the take-up rollers 27-27, from under which the cardboard blank passes into the rolls 32 and 57, of which the roll 32 is equipped with fractional and transverse disc and semi-disk knives, as well as fractional and transverse discs with blunt edges serving to force the fold lines in the transverse direction.

The upper roll device 32 is as follows. The cylindrical casing is rigidly fastened to the sidewalls 93-93, having tides 94-94, in which they are fixed, by means of bolts 95-95, the axis 52 of the roller 32. Along the circumference of the sidewalls, the spring-loaded rods 776 are located in the guides 97-97. 114, and c. the directions (dich 96-96-rods 98. Half-disk knives / 72-775 (Fig. 4), mounted on the rod 110, are rotated together with the latter by means of a cam disc 2, mounted on the axis of the roll 32 and interacting with their cams with the roller 777, mounted on the end of the rod 776. The rods 98 carry the blunt discs 76 7-101, which serve for the first section of the folding line, and the semi-disk knives 102-J02 for cutting the edges of the boxes. The rods 98 receive a longitudinal return movement from the rollers 109 incident on the fists protrusions of the disk 42. When moving the rods 98 knives mounted on them rotate simultaneously, and the angle of rotation is limited by eccentrically located cuts, 103 sliding on pins 99, 99 of rods 98 (due to this eccentric arrangement of knives, their significant recess in the cuts of the roll is achieved). Knives 101, 102 are equipped with a device for returning them to their original position, consisting of a spring-loaded strap / 04 hinged to the drum axis, hingedly connected to the knife disk 706. Next, cut the paper plates, gripped by take-up rollers 39, 39, eredno and two are applied to peredvigayuschies pairwise in mutually perpendicular direction of the carriage 43, 43 and 44, 44, for the transfer of blanks to shtampovalnym ram m and seaming devices. The drums 19, 18 and the rollers 52, 57 are driven into rotation from the main shaft 10 through bevel gears and cylindrical gears 22, 25, 20, 21 and 36, 35, 33, 34. The receiving rollers 75-75, 27-27, 39- 39 are rotated by belt drives and, 16, 28, 29, 37, 38 from pulleys 77 and 30, seated on axles of shafts 18, 31.

The grooved shaft 72 receives rotation from a belt drive 14, 75; the main shaft 10 is driven by the belt transmission 41 from the electric motor 40.

The subject matter of the invention.

Claims (3)

1. A machine for making stitched boxes of rectangular cardboard sheets, consisting of a device for making cardboard patterns by means of two pairs of cylindrical rolls equipped with disk and half disk blades and discs with blunt edges for squeezing the folding lines of the boxes, from a transmission device for transferring cardboard Patterns for two groups of punching and sewing devices, characterized in that the upper cylindrical shaft of the second pair of rolls is equipped with share and transverse disk and semi-disk knives, also fractional and transverse discs with blunt edges to push the fold lines in the transverse direction, in order to get the workpiece four times, out from under which the workpiece is cut with a cross-right knife with a further transfer of the workpieces under four stamps and to the stitcher in two pairs carriages, of which two carriages simultaneously move along the axis of the machine and two carriages in the direction perpendicular to them. 2. The form of execution of the machine according to claim 1, characterized in that through the roll 52 parallel to the cylindrical surface forming it are passed longitudinally-returnable rods of the outer curved surface 110. 98, on the first of which half-disk knives 772 and 775 are mounted, producing longitudinal the cuts in the cardboard, and the second are fitted with both half-disk knives 102-102 for transverse cuts and disks 101-76 7 with a blunt circumference for forcing through the lines of transverse folds. 3. The form of the machine according to claim 1, characterized in that the receiving patterns at the same time, parallelly extending from under the cutting rolls 52, 57, are carriages 43, 43 and 44, 44.