SU1324974A1 - Automatic machine for feeding corrugated board sheets - Google Patents

Description

The invention relates to printing machinery, in particular, to devices for feeding blanks from a corrugated cardboard to a printing and cutting machine.

The aim of the invention is to increase the reliability of the machine by ensuring the uninterrupted supply of warped corrugated cardboard sheets to the cascade.

The aim of the invention is to improve the reliability of the device by ensuring uninterrupted supply of warped corrugated cardboard sheets to the cascade.

FIG. 1 shows a schematic diagram of the automaton; in fig. 2 - a schematic diagram of the feed, its conveyor; in fig. 3 is a design diagram of the angular position of the parts of the feeding conveyor.

The corrugated cardboard sheet feeding machine contains a lifting conveyor 2 mounted on the base 2 with a foot separation mechanism 3, a cascade forming mechanism comprising a frame 4 and a feeding conveyor 5 mounted thereon mounted interoperably with the lifting conveyor 2, and a receiving device 6.

The cascade-formation mechanism has a presser 6 installed over the feeding conveyor 5 for the forefoot of the foot 7 in the course of moving the sheet, while the feeding conveyor 5 consists of two articulated parts, the second (part 8) of which has the angular position relative to the first one, which includes levers 9, on which frame 4 is supported, is kinematically connected with the screw 10. The swing axes 11 of the levers 9 are mounted on the base 1.. The automatic machine works as follows.

Cardboard stop 7 is placed on receiving device 6, where it is aligned in the transverse direction and brought to lift conveyor 2. On a lifting vehicle, 2 stops 7 step by step are raised as the next stack is pushed together by the mechanism 3 separating the foot on the supply conveyor 5.

At the moment when the next foot 7 approaches, the cascade-formation mechanism is given a signal to lower the presser 6, which presses the forefoot 7 and presses it to the moving conveyor belt 5. After the disassembly of the foot is completed, the presser b is lifted, for example, by the power cylinder 12, skipping the next foot to the cascade stops 13.

When processing warped sheets while rotating screw 9, the angle of inclination of the second part 8 of the conveyor 5 is adjusted. This is necessary in order for it to absorb the weight of the rear part of the foot 7, creating conditions for shifting the next sheet during cascading.

In addition, it is necessary to regulate the position of the cascade-forming abutment in order for normal cascade formation when the sheets are buckled down. It is required that, when the next sheet is fed, the next sheet contacts the

belts of the second part 8 of the conveyor 5 near its rear edge. For this, the surface of the conveyor belt 5 must be tangent to the surface of the sheet at the rear edge of the latter (Fig. 3). Then the distance from the support plane of the mechanism

cascade to hinge axis 14 equals

25

1 L-AB, where L is the sheet format in the feed direction

 Sun sina

R, - R cosa;

L- R- R-cos “L- P

Xir

sina

- COSCi.

sina

a

- IL-E frr.

 a 2

Since the angle a / 2 is small 25 nom format and warping

with sufficient accuracy

and a

Then 1

L

L - P

(L-P) 4g.

those. The optimal distance from the reference plane of the cascading mechanism to axis 14 does not depend on the degree of sheet warping and is equal to half the size of sheets in the feed direction plus half the width of the pressure bar.

V 2

 / If / -yt. /. s, (f

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/ g

Claims (1)

AUTOMATIC MACHINE FOR FEEDING SHEARS OF THE CORNER CARDBOARD, comprising a lifting conveyor mounted on the base with a mechanism for separating the foot, a cascade forming and leveling mechanism, including a frame and a feeding conveyor mounted thereon, arranged to interact with the lifting conveyor, and a receiving device, characterized in that, in order to increase the reliability of the machine by ensuring the uninterrupted supply of warped corrugated cardboard sheets to the cascade, the cascade formation and sheet alignment mechanism has a clamp placed on the frame above the feed conveyor for the forefoot of the foot, in the direction of movement of the sheet, while the feed conveyor consists of two pivotally connected parts, the second of which along the movement of the sheet has means for adjusting its angular position relative to the first. oo 4 ^ C © ^ 1 4 ^