DE1916782A1 - Device for unstacking and / or stacking trays or the like. - Google Patents

Description

Patent Attorneys OiPt. -Ing. R ¥ eickmann, 1 "IQ / oZ

Dipl, -Ing. H. ¥ eickmann, D1PL.-PHYS. Dr. K. Fingke Dipl.-Ing. RA Weickmann, Dipl.-Chem. B. Huber

SCIS

8 MONKS 27 DEN

MÖHLSTRASSE 22, CALL NUMBER 48 3921/22 Hugo Hammelsbeck GaabH Rodenkirchen / Cologne, Ringstrasse 13-19

Device for denesting and / or Stacking of trays or the like

The invention relates to a device for unstacking and / or stacking tablets, henil plates or the like for large kitchens and restaurants. In such establishments, the food is portioned in the assembly line process. This will only include the Meals or plates of certain menu plates or trays are initially taken from a stack and one after the other put on top of a lilac and after use stacked up again.

For the Sotstapelung of trays, a device is known in which four spindles engaging the corners of a stack, one after the other, in each case the bottom tray

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BATH ORIGINAL

release. If the tablet is not carried away, eo can therefore also be re-stacked; when a stack of the desired height is reached, this if necessary removed with shutdown of the device. However, this facility is complex and exacting trays of the same size, what makes them cheaper to manufacture opposes. Therefore, this device, especially with plastic trays »has not proven itself.

In contrast, the invention is based on the object avoid the disadvantages of the bekeaat @ a facility.

According to the invention, this object is achieved in a device of the type mentioned in the introduction Each release device consists of two interlocks ·! * arranged one above the other, tob which the upper one in your variable position the lower tray of a Stapais, uai you moved out of its locking position Ie @ ie # Iraigafc @ rfe®llttag will.

The establishment results in a «safe puncture, at dtr you bigger Toleransaa in the dimensions of the Trays or the like are irrelevant. The interlocks work in easily controllable steps.

Bai einia vorsugswaisaa embodiment are the BerritgeluQgen around one opposite the support point of one Tablet higher up Aohsa sohwaa & bare claws. Slide·· Warden by means of Aohsa sitsandar shared on ainar Kurvansohaiban controlled. In this way, four devices can be installed in the vicinity in a manner known per se

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the corners of a stack of trays may be provided. In the case of rectangular trays, there are also two release devices that engage on opposite sides ®1q © s! Trays. In the case of round trays, three FiMigabvorriehtungen arranged in a circle can be provided.

The trays are preferably dropped onto a conveyor belt. This can be operated continuously as a portioning conveyor belt when destacking. However, in order to achieve a new stacking on the conveyor belt, this can also be done with a continuous drive of the release devices must be operated discontinuously.

The cam disks of the two claws of a release device are preferably 180 ° with the same shape offset. All of the cams are driven together in such a way that all of the upper claws on the one hand and all of the lower claws on the other hand in the same direction at the same time adjusted.

In order to avoid overlaps in the clock movements of the interlocks that lead to the simultaneous release of Two trays or the like. Could lead, it is further provided that after each adjustment one Locking device in its release position and back in its locking position, both locks of a release device are in their locking position before the other lock is adjusted to the release position.

To adapt the destacking sequence to the operating requirements to be able to, is a preferably continuously adjustable

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ORIGINAL BATHROOM

Drive provided.

The de-stacking operation of the device is completely automatic. To also have automatic stacking on the conveyor belt without tedious counting of the! trays in a stack or estimate the height of the stack, it is provided as an embodiment that the trays dropped onto the conveyor belt by means of a light barrier detected and connected downstream by means of one of the light barrier Counting device are counted, and that a switching device when a predetermined number is exceeded of trays sets the conveyor belt in motion.

The invention and further advantages and developments are explained in more detail below with reference to the drawings.

Show it:

1 shows a device according to the invention in side view;

FIG. 2 shows the device according to FIG. 1 in a plan view; FIG.

3 shows a clock sequence in the operational sequence of the device according to FIG. 1 $

As can be seen from FIGS. 1 and 2, a tray is stacked 1 in the facility above a running portioning conveyor belt 2 held. The two bottom tablets are each held with four claws 3a, 3b at the corners. These claws 3a, 3b can be rotated on axes 4 ″, 4b stored and point at an extended lever end

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Rolls 5 in the form of ball bearings. The roles 5 follow the scope of Kurvenscheibeη 6a, 6b and are except additionally pressed by compression springs 13 due to the weight of the stack of trays 1. The cams 6a, 6b are Via shafts 7a, 7b, sprockets 8a, 8b carried on their ends and a chain 9 on both sides for the common, synchronous drive connected. The drive takes place via a further chain drive 10 by means of a through a Electric motor driven gear 11. The electric motor or the gear 11 can be continuously controllable.

The cam disks 6a, 6b each have a recess 12, the recess 12 of the cam discs controlling the lower claws 3a by 180 ° with respect to the recesses 12 of the curves controlling the upper claws 3b disks are offset. There are “therefore four each Claws are moved into a release position and back to their locking position, while at the same time the rest Claws remain in their locked position.

The timing sequence shown in FIG. 3 arises during the control.

The bottom tray of the is located in the first bar Tray stack on the upper claw 3b, both claws 3a, 3b are in their Yerriegelungsstellung. After a rotation of the curve discs 6a, 6b by 90 ° the second bar reaches in which; the upper claw 3b is in the release item, while the lower one is located Claw 3a still remains in the locking position. The stack of trays moves each below and lies now on the lower claw 3b. By further rotation

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of the cam *! 6a, 6b by 90 °, becomes the first »measure The same third cycle is reached in which again both claws 3a, 3b assume their locking position. The upper Claw 3b now grips under the second bottom tray of the tray stack. Therefore, this becomes on the upper claw 3b held if in the following fourth cycle after a further rotation of the cams 6a, 6b by 90 ° the lower Claw 3a is pivoted in the release position. This will the bottom tray is released and falls onto the conveyor belt 2. By resetting the lower claw 3s la their Locked position is then reached again the first cycle, and the same cycle sequence is again through » to run.

If the trays are to be stacked, the portioning belt 2 is stopped while the setup is otherwise running, as already described. The number of falling tablets is counted by means of a photocell 14. When the desired number is reached, a " ¹ " switch device stops the drive of the Intstapeleinriehtung ae and starts the portioning belt 2, after the plate is free under the unstacking unit, the Yorgaag can be repeated automatically.

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9842/0607

Claims (1)

EXPECTATIONS | 1. Device for destacking and / or stacking ^ Trays or the like with on the edge of the bottom tray a stack engaging release devices, characterized in that each Release device from two attached one above the other Latches (3a, 3b) consists of which the upper in their locked position the second bottom tray of a stack (1) carries and the alternately can be adjusted from their locked position into a release position. 2. Device according to claim 1, characterized in that the locks about an axis which is higher than the support point of a tray (4a, 4b) are pivotable claws (3a, 3b). 3 · Device according to claim 2, characterized in that the two claws (3a, 3b) one Release ν or direction by means of a common axis (7a, 7b) seated cam disks (6a, 6b) are controlled. Q098A2 / 0607 BADOR [GfNAL 4. Device roof claim 3, i a d ur e Ii g ο k @ q a indicates that yier release device is io. near the corners of a stack (1) of trays in front of = are seen. . 5. Device according to claim 1, characterized in that g ® k © θ ε draws the trays on a conveyor belt (2) be thrown off. 6. Device according to claim 5, daur ο hgek <s ö ι -draws that the releasing device umü conveyor belt (2) operated continuously .eind. 7. Device according to claim 5, characterized in that g ® k e t shows that the release devices are operated co-continuously, but the conveyor belt (2) is operated discontinuously. 8. Device according to claim 3, characterized in that g @ k @ shows that the cam disks (6e, 6b) both claws (3a, 3b) of a release device Are offset by 180 °. Device according to Claim 3, characterized in that the cam disks (6 @, 6b) of all claws (3a, 3b) are driven together, such that _p . that all upper claws (3b) on the one hand and all lower claws (3a) on the other hand are each adjusted in the same direction in the same direction. 009842/0607 10. Device according to claim 1, characterized in that dad aich each after the adjustment a lock in its, release order and back in its locked position both locks (3a, 3b) of a release device are in their locking position before the other lock is moved into its release position. 11. Device according to claim 9, characterized by a drive (11) with adjustable speed. 12 * Device according to claim 11, characterized draw et that the drive (11) is continuously adjustable. 13 * Device according to claim 7, characterized in that the tray thrown onto the conveyor belt (2) requires a light barrier (14) detected and counted by means of a counting device nachgesohalttten the light barrier, and dad A 3oh · IteiBbruch sing if a given ADMhI of tablet exceeded the forehand in sang puts. 00 9 842/0607 BADORlGiMAL Blank page