DD289256A5 - SCHUETTLER FOR EDGE-ROLLING ALIGNMENT OF STACKS OF PAPER, PAPER OD. DGL. - Google Patents

Abstract

The invention relates to a Schuettler for edge-exact alignment of stacks of paper, cardboard od. Like., In which the stacks rest on a schwingfaehig arranged table top, wherein the inclination angle of the table top by an adjustment consisting of two hinged to a frame 8 a table top 7 connected working cylinder 5, 6, the bottom side via a directional control valve 11 with a, a liquid medium receiving, tank 10 are connected, is adjustable {Schuettler; Bogenschuettler; Aligning stacks; edge-to-edge alignment}

Description

For this 3 pages drawings

Field of application of the invention

The invention relates to a shaker for accurate edge alignment of stacks of paper, cardboard od. Like., In which the stacks rest on a vibratory arranged table top, wherein the inclination angle of the table top is adjustable by an adjusting device depending on the material to be cut.

Characteristic of the known state of the art

For edge-to-edge alignment of stacks of paper, cardboard or the like, a large number of solutions are known which have proven themselves in practice. This is particularly true of the shakers in which the material to be cut rests on an oscillatory arranged table top, which is inclined during the shaking by a certain angle, and is aligned against two at right angles arranged stops.

Shakers are known in which the table top is connected by a universal joint with a lifting column.

To the universal joint fixed and adjustable in the rear area pins are arranged in the front. In addition, arranged in the front half of the table top under this tension cables, the pm frame are fixed and the table top in the upper position gegc.i pulls the fixed front pins, so that the table top is in the upper position horizontally.

When lowering the lift table in the working position for inserting and shaking the cutting material, the ropes are relaxed, and the table top tilts due to the arrangement of the fixed pins outside the center of gravity of the table top or you ι oh additional spring forces on their diagonal down to the adjustable pins down , The tilt angle can be changed by the vertical adjustment of the adjustable pins.

In another solution, the adjustment of the angle of inclination of the table top by a rotatable about the lifting column of the table top lever is associated with which pins are driven by moving the lever out of the tilt axis.

After adjustment, the lever is locked by turning a clamping spindle.

All solutions., In which the inclination angle is realized by means of pins, have the negative property that the movement sequence for the Tischschrägstellung takes place jerkily.

Another solution consists of two columns hinged at the table, which are grooved, with the grooves at the top end sloping. These columns are guided in the frame by bushes. Through transverse bores in the bushes, horizontally adjustable pins with detents protrude into the grooves. Depending on the depth of immersion of these pins in the groove, the columns jam in downward movement of the table at the obliquely outgoing groove and thus lead to different angles of inclination of the table with further downward movement of the lifting column.

With these shakers, the pins can only be locked in three different positions. Due to the presence of several universal joints and guides a considerable construction effort is available.

Large-sized shakers have 4 separately driven lifting columns. The inclination of the table and the lifting height are adjustable via digital switches.

Ziul of the invention

The aim of the invention is od the availability of shakers for accurate edge alignment of stacks of paper, cardboard od. Like., In which the stack on a vibrationally arranged, adjustable by an adjustment by a certain inclination table top rest and against two at right angles to each other arranged stops can be aligned by vibrations of the table top, further increase.

Explanation of the essence of the invention

The object of the invention is «s, a shaker for canton-accurate alignment of stacks of paper, cardboard od. DPI., In which the stack on a vibratory arranged, adjustable by an adjustment by a certain inclination table top rest and against two mutually perpendicular stops arranged by Swinging the table top aligned would improve, with oinfachen resources and little construction effort dorart that the tilting movement of the Tischpl itte runs harmoniously and the Neißungswinkel the table top is infinitely adjustable. According to the invention, the object is achieved by a shaker for edge-precise alignment of stacks of paper, cardboard od. Dg!., In which the stack on a vibrationally arranged, by an acting against a stabilizing mechanism adjustment by a certain inclination adjustable table rest and against attacks by swinging to be aligned, achieved by the Vor.'itelleiniichtung by two with one, the table top frame supporting articulated cylinder! - !, the bottom-connected via a directional control valve (11) with a, a liquid medium receiving tank, is formed.

The working cylinder act through the connection with a piston rod side attacking pressure accumulator as a stabilizing mechanism ..

embodiment

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawings _D

1: the schematic representation of a shaker »in front view Fig.2: a section A-A through Fig. 1st

3: the schematic representation of a shaker in front view, in acquisition or working position.

Fig. 1 shows a shaker with a frame 1, which is associated with a Hubsäulenführung 2 and a fixedly connected to a base plate 3 lifting column 4. Aul 'the base plate 3 are a, a table frame 8-bearing universal joint 19 and two stop pins 20 are arranged. With the table frame 8 via rubber buffer 18 a, with two mutually perpendicular stops 15 versehine table top 7 is connected. Two right and left of the lifting column 4 arranged working cylinder 5,6 are kolbenstangenscitig with the, the table top 7 supporting table frame 8 and the bottom side connected to the frame 1 articulated.

The two working cylinders 5,6 are piston rod side each acted upon via a pressure accumulator line 12,12.1 with a, present in a pressure accumulator 9 medium.

On the bottom side, the two working cylinders are 5.6 via two control lines 13,13.1, a directional control valve combination 11, which is associated with a timer 25, and a tank line 14 connected to a hydraulic tank 10.

The drive of the lifting column 4 is irr. essentially by an electric motor 17, which is associated with a gear 21, which drives the lifting spindle 16, which is guided in a fixedly connected to the lifting column 4 spindle nut 22.

The operation of the invention is as follows.

If the table top 7 of the shaker with partial stacks 23 are fed to kantengsnauen alignment, the table plate 7, driven by the Nachuntenbewegon the lifting column 4, in its lowest position. Since the directional control valve 11 in the

"CT position is, the bottom side in the working cylinders 5,6 located oil is pressed into the hydraulic tank 10.

During the lowering process, the directional control valve 11, in response to the Zei'jlied 25 which is connected to the machine control, switched to the position "1", so that the oil flow from the Arbeitzy '.κ'ιτ 5 and thus the lowering movement of his Piston rod to be stopped.

As the lifting column 4 further lowers, the oil is still from the Arbeitszyli. 6 printed in the hydraulic cylinder 10.

As a result, the table top 7 tilts due to the shift of the center of mass on the diagonal against the operating side to the left and thus stands out from the right stop pin 20.

The sooner the directional control valve 11 is switched to the "1" position, the greater the inclination angle of the table top 7. Any desired angle of inclination can thus be set via the variable timer 25.

If the inclination of the table top 7 to the right, so the directional valve 11 must be switched in Stellun Jl " .

After reaching the desired angle of inclination, the table top 7 is set in vibration and successively at defined intervals with sub-stacks 23 until the weiterzuverarbeitende stack height is reached, fed.

Due to the swinging of the table top 7, the cut material stack 24, due to the inclination angle of the table top 7, aligned against the stops 15.

If this process is completed, the oscillating drive, not shown, is switched off.

Thereafter, the table top 7 is pressed by the up-drive of the lifting column and by the piston rod-side pressure load of the working cylinder 5,6 through the medium of the pressure accumulator 9 against the stop pins 20 and is at full

extended guide column 4 in a horizontal position and thus in the transfer position.

Claims (2)

1. Shakers for accurate edge alignment of stacks of paper, cardboard or the like, in which the stacks are mounted on a vibratory arranged, by an adjusting device acting against a stabilizer adjustable by a certain inclination table top and aligned against two mutually perpendicular stops arranged by swinging be characterized in that the adjusting device by two with a frame (8) of a table top (7) hingedly connected working cylinders (5,6), the bottom side via a directional control valve (11) with a, a liquid medium receiving, tank (10) are formed is formed. 2. shaker according to claim 1, characterized in that the working cylinder (5,6) are formed in conjunction with a piston rod side, acting on these pressure accumulator as a stabilizer.