DE1280155B - Stacking device for flat stacked goods - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN ^ KSS PATENT OFFICE

EDITORIAL

Int. Cl .:

File number: Filing date: Display date:

B65h

German KL: 8Ie- 129

P 12 80 155.7-22 (B 87294)

May 25, 1966

October 10, 1968

The invention relates to a stacking device with a flat stacked goods conveying belt on its one end is firmly clamped and its other end can be wound onto a drum.

The invention is particularly suitable for the stacking of items of laundry, which by a folding machine have passed through and both in their width, length and thickness as well as in their weight and can vary depending on the type of fabric. The invention is also suitable for stacking flat stacked goods made of other material, such as. B. for stacking cardboard, cardboard or paper.

Such stacking devices are known with means that convey the belt conveying the flat stacked goods grasp between its ends and the clamped end of the tape with respect to the one above the Advance and retract the reversal point between the two ends of the tape at the stacking point, while the other end of the tape is withdrawn from or wound onto the drum.

The object of the invention is to design such a stacking device so that it is simple and works fast. In the known stacking devices there was always a certain disadvantage that for Winding the tape onto the drum requires a special drive. Another one in particular technical disadvantage is to be seen in the fact that the speed with which the stacked goods is advanced in the direction of the stacking point, by the speed of one end on the drum wound tape depends and thus has a relatively low upper limit.

The invention solves the problem posed by the belt conveying the stacked goods and the drums are equipped with pretensioning means for automatically winding the tape onto the drum and above it an endless belt conveyor for advancing the stacked goods on the clamped end of the belt is provided in the direction of the stacking point.

The pretensioning means for the automatic winding of the tape result in a simple construction and make special drive means superfluous. The winding or return movement can be done with very high speed without the drum doing this at any of the return speeds appropriate speed must be specially driven. Since the winding takes place automatically, the winding speed is automatically equal to the return speed.

The endless belt conveyor provided according to the invention ensures that the stacked goods are independent the forward or backward movement of the clamped

Stacking device for flat stacked goods

Applicant:

Thomas Broadbent & Sons Ltd., Huddersfield,

Yorkshire (UK)

Representative:

Dr.-Ing. E. Berkenfeld

and Dipl.-Ing. H. Berkenfeld, patent attorneys,

5000 Cologne-Lindenthal, Universitätsstr. 31

Named as inventor:

James Edward Cornwall,

Lascelles Hall, Huddersfield, Yorkshire

(Great Britain)

Claimed priority:

Great Britain May 26, 1965 (22 276)

th end of the belt which carries the stacked goods is advanced to the stacking point. Separating the Feed movement of the stacked goods by the endless belt conveyor from the forward and backward movement the clamped end of the other band has the further advantage that the various movements and their speeds on the one hand and the drive of the endless belt conveyor and the pretensioning means on the other hand, can be kept independent of each other and not coordinated with each other Need to become.

In a further embodiment, the invention provides a measuring device in the form of a sensor or one Photocell for controlling the return movement of the clamped end of the tape by detecting the Forward movement of the stacked goods on the belt in the direction of the stacking point.

The pretensioning means are realized in a constructive embodiment in that the band is made of consists of two or more transversely spaced apart and pre-tensioned metal strips or that the drum is biased in the winding direction.

The invention also provides an embodiment in which the belt conveying the stacked goods is moving from its clamped end in one direction as an upper strand carrying the stacked goods to one Reverse drum extends around which it revolves, and

809 620/236

3. 4th

then carried as a lower strand in the opposite direction band 1, one end of which runs at an angle to its other wound end, rail 2 is attached. A band 1 runs from which the reversing drum in the direction of the reversing rail 2 as the upper run to the left, wraps around the point and is movable away from this, and the drum 3 and then runs as the lower run to the lower run accordingly _: and unwound -will. 5 to the right of a drum 14, which, in a counterclockwise embodiment, sees the generation or winding direction being pretensioned. Dib findüng that the drum is in KieMuig 'on and drum 3 is in a fork 4 on the piston rod 5 in the direction away from the stacking point; »Movable ^ is stored and held in sliding guides. A moving drum is guided in parallel guides; the movement of the drum 3 'to the left pushes the upper drum in one direction through a piston io strand of the belt 1 to the left and the movement is movable, which is connected to it by ropes , the drum 3 to the right causes the retraction and the drum is held in its end position by latches on the upper run, as shown in FIG. 4, which can be released by a measuring device.

device, such as a sensor or a photocell, controlled With the output shown in Figs. 5 and 6, The movement of the conveyor on the strand is a belt 30 with its right grasp th stacked goods when this is attached to the stack end on an angle rail 31 and with place approaching. its left end wound on a drum 32

Using the example of the Auskelt shown in the drawing. The band 30 consists of several parallel guide forms, the invention will now be described further in the transverse direction at a distance from one another. It shows ao and pre-tensioned metal strips, FIGS. 1 and 2 an embodiment of the invention ^,! have a downwardly concave cross-section. F i g. 3 and 4 show a modified embodiment. The drum 32 is arranged in parallel guides 33. 5 is a side view and supports, one of which in FIG. 6 one is shown. The Füh-F i g. 6 is a partial end view of an embodiment 33 carried in a frame 34, an embodiment derived from that of FIG. 1 is developed. 35 The stacked goods are fed to the belt 30 by an end conveyor 35 shown in FIGS. The endless conveyor consists of several parallel to each other and in transverse direction 35 consists of several parallel, in the transverse direction tion at a distance from each other Hegenden belts of spaced apart bands. From the flexible material, which extend at one end to an angle rail 31, strippers 37 are attached to the angle rail 2 and at the other end are wound up in the spaces between these individual drum 3. This is in a ribbon. The stacked goods are stored along the belt 30 fork 4 at the end of a piston rod 5. The drum 3, advanced by an endless belt conveyor 38, is thus moved to the left and to the right 35 39 relative to a stacking point, the lower strand of which consists of a plate 6 in the direction of the arrow. The belt conveyor 38 consists of several movable. The belt 1 is arranged under an endless Ren single parallel, in the transverse direction in the AbBandförderer 7, which is located in the by the standing from each other belts. The direction indicated by arrow 8 moves and consists of several individual bands. exists, it winds up on the drum 32 and a return movement of the drum 3 to the right 40 pulls it to the right. In Fig. 5 is the drum 32 is controlled by a switch 9, which is actuated by a sensor 10 in the left end position above the stacking point. This protrudes into the path shown, is held in this position by two bolts 40 of a stacked item 11 lying on the belt 1, which are pivotable about an axis 41. Actuating the switch 9, the piston rod 5 is controlled. The angular position of each bolt 40 is retracted to the right by a magnet 42 with the drum 3, such as 45, which lifts an armature 43, FIG. 2 shows. The continued movement of the drum to disengage the latch 40 from the drum 32. mel3 to the right over the position shown in FIG Sensor 45 is actuated, which falls with the plate 6. 50 stacked goods 46 come into engagement when this comes into engagement with the stack 47 carried on a plate 48 from right to left above the speed of movement of the drum 3 can be equal to the speed. When the latch 40 is released, the movement of the belt conveyor 7 can be moved, but the drum 32 quickly moves to the right to enable the storage movement of the drum 3 in the opposite direction of the stacked item 46. The direction in which the support 55 is removed from the stacked goods 11, a piston rod 50 that can move back and forth, should take place relatively quickly. The attached to a cable 51, which is wound on a drum drum 3 in sliding guides 52, not shown, which is mounted on a shaft 53, is stored. Two larger drums 54, of which only one is shown in the counterclockwise direction in front of FIG Both ends of the drum 32 are connected when the drum 3 is turned back to the right. After that is withdrawn. On the other hand, the tape 1 can consist of multiple drum 32 to the right to consist of the stacking independent springs, which deposit 46 well on the stack 47, it will wind itself up again, so that a pre-tensioning to the left in the in Fig The end position shown in FIG. 5 is pulled drum 3 for counterclockwise rotation 65, and that is not required by the movement of the pistons. rod 50 to the right, after it has previously been pulled by the movement of the drum 32 to the right and left in the embodiment shown in FIGS. 3 and 4.

A valve, the supply of a pressure fluid for the movement of the piston rod 50 after controls right, is controlled by the switch 44 via a switching device. The drum 32 is therefore in the in F i g. 5 end position shown returned after a predetermined period of time based on the latch 40 is disengaged.

The height of the stacking plate 48 is adjustable and is gradually lowered as the stack 47 becomes larger.

Claims (6)

Claims: IO 1. Stacking device with a flat stacking conveyor belt at one end is firmly clamped and can be wound onto a drum with its other end, with means, which grasp the band between its ends and the clamped end with respect to the one above the reversal point located at the stacking point between the two ends of the tape and back- ao pull while the other end of the tape is drawn off or wound onto the drum is, characterized in that the belt (1, 30) and the drums (3,14, 32) with Pretensioning means for automatically winding the tape (1, 30) onto the drum (3, 14, 32) are equipped and an endless belt conveyor (7.38) for advancing the stacked goods on the clamped end of the belt (1, 30) is provided in the direction of the stacking point. 2. Stacking device according to claim 1, characterized by a measuring device in the form a sensor (10, 45) or a photocell to control the return movement of the clamped End of belt by detecting the forward movement of the stacked goods on the belt in the direction on the stacking point. 3. Stacking device according to claims 1 and 2, characterized in that the tape (1, 30) of two or more transversely spaced apart internally prestressed Consists of metal bands. 4. Stacking device according to claims 1 and 2, characterized in that the drum (3,14, 32) is biased in the winding direction. 5. Stacking device according to claims 1 to 4, characterized in that the Staple conveying belt from its clamped end in one direction as a das Upper strand carrying stacked goods extends to a reversing drum (3) around which it rotates, and then wound up as a lower strand in the opposite direction to another At the end, the reversing drum (3) runs in the direction of the reversal point and away from it is displaceable, and the lower run is wound up and down accordingly. 6. Stacking device according to claims 1 and 2, characterized in that the drum (32) can be moved in the direction up and away from the stacking point, the drum (32) is guided in parallel guides (33), the drum (32) in one direction by a piston (50) is movable, which is connected to it via cables (51,55), and the drum (32) in it End position is held by bolt (40), the release of which by a measuring device, such as a sensor (45) or a photocell, is controlled, the movement of the conveyed on the strand Detect stacked goods when they approach the stacking point. Considered publications:
German Patent No. 1132 861;
U.S. Patent No. 1,566,701. For this purpose 2 sheets of drawings 809 620/236 9.68 © Bundesdruckeiei Berlin