CH628310A5 - Apparatus for transferring plates from a first endless conveyor to a second endless conveyor - Google Patents

Description

628 310 2

The conveyor organs (31) of the third endless conveyor (30A,

30B) perpendicular to the wing of the conveyor of the first

1. Device for transferring to a first endless conveyor (4).

conveyor (4) lying plates (5) to a lower arranged 14. Device according to claim 1, characterized

Neten second endless conveyor (14), in which the plates (5) in 5 shows that the pivot axis (46) of the stop member parallel

Brackets (19-21) are held obliquely, thereby lei to the axis of rotation (22) of the deflecting member of the first endless conveyor

characterized in that the transfer point runs from the first (4) on which (4).

the second endless conveyor (14) has a support (43). 15. Device according to claim 4, characterized in

, via which each plate fed by the first endless conveyor (4) draws that the stop member (41) is a bar that tilts forward, that an auxiliary conveyor (30) 10 is mounted in a pendulum manner along the longitudinal edge.

is arranged in such a way that it is characterized by a rear section of every 16th device according to claim 5,

tilting plate (5) comes into engagement, that at the end area draws that the bar (41) with a weight piece (42)

the auxiliary conveyor (30) is connected to a pivotable in the conveying direction, which is used by a plate edge in

Stop member (41) for holding back the rear Plattenran conveying direction pivoted bar (41) in its rest position is present. 15 pivot back and thus the plate edge against the auxiliary

2. Device according to patent claim 1, characterized in that the conveyor (30) returns.

net that the support (43) of the jacket rotate at least one 17. 17. Device according to claim 1, characterized

the disc is. records that each of the brackets of the second endless conveyor

3. Device according to claim 1, wherein the first end (14) arranged in groups, with an endless, link-free conveyor (4) has a conveyor belt, characterized thereby 20-shaped carrier (16) connected wire bracket that each net that the support is a group of wires lying on a deflection roller from a section of the conveyor belt oriented transversely to the conveying direction. Follow straight wire sections (19) and one of them

4. Apparatus according to claim 1, wherein the first end, parallel to it, the sequence of angular wire-free conveyors (4) is a link conveyor, characterized in that cuts (20, 21) are composed such that the straight line that supports the jacket of two Discs (43) is formed, 25 wire sections (19) backwards with respect to the conveying direction between which the deflection wheels (12) are arranged, running inclined, and the axis of the discs (43) connected to the carrier (16) with the axis of the deflection wheels (12) wire sections (20) parallel to the straight wire section coincides. ten (19) and the adjoining wire

5. The device according to claim 4, wherein the disc sections (21) extend inclined in the conveying direction.

(43) and the deflection wheels (12) a common shaft (22) _ 30 18 • Device according to claim 17, fixed for plates

exhibit. laid uniform size, characterized in that the

6. Device according to claim 4 or 5, characterized conveying members (31) of the third endless conveyor (30A, 30B) characterized in such a way that the diameter of the disks (43) are dimensioned larger so that it is the plates resting on the support than the diameter of the Envelope curve that circumscribes the chain links adjacent to the deflecting (5) in an approximately parallel to the straight wire sections of the (12) such that the 3S (19) release position.

Plate (5) only rests on the disks (43) with edge areas.

7. The device according to claim 1, characterized in

net that the auxiliary conveyor (30) two parallel, from the first

Endless conveyor (4) third endless conveyor equally spaced apart The invention relates to a device for transferring

(30A, 30B), in order to form-fit one plate lying in the conveying direction 40 on a first endless conveyor to an edge section of the tipping plate (5) running to the bottom, to the second endless conveyor arranged below, in which they grip. Plates are held at an angle in brackets.

8. Apparatus according to claim 7, set for plates. There are restoration companies in which the food in ter uniform size, characterized in that at least bowls are dispensed, which bowls together with the least that with the edge of each plate (5) in Touching 45 cutlery are arranged on plate-shaped trays. This is

Part of the conveyor element (31) of every third endless conveyor (30A, for example in self-service restaurants) in the cafeteria

30B) made of an elastomeric material that the light from universities and hospitals is the case. The returned

The distance between the conveying elements (31) smaller than the width of the dishes is required in such operations in large dishwashers.

each plate (5), with a portion of each conveyor member (31) being cleaned in a continuous process. Thereby lie on a spring-loaded bar (56) and that the 50 pre-sorts the tablet, the bowls and the cutlery on separate

Intervention by the on the bar (56) and the conveyor member (31) th conveyors, with several conveyors per sorted acting spring force. Can be present, and thus in the dishes

9. Device according to patent claim 8, characterized in that the dishwasher is introduced. When it is introduced into the dishwasher, the conveyor element (31) is an endless flat belt. machine must wash these items in predetermined washing

10. Device according to claim 7, characterized in 55 positions are brought on further conveyors. The fact that the conveyor elements (31) of the third endless conveyor used machine parts must be a fast, effective (30A, 30B) by a common drive (40) slip-free and damage-free guiding and conveying these counter drives. can carry out stands.

11. The device according to claim 10. characterized thereby- The tablets, which lie flat on their insertion conveyor, shows that the conveying members (31) of the third endless conveyor 60 are in a first step on its second (30A, 30B) by means of chains and Chain gears (36-39) brought with conveyor, which are the actual washing or rinsing part of the common drive (40). Dishwasher goes through. In known facilities

12. The device according to claim 10, characterized in performing this transfer, the so-called tray, that the conveying members (31) of the third endless conveyor are clocked in, there is a risk that the tablet will not be in (30A, 30B) by means of toothed belts and toothed belt pulleys with 65 wall-free position are fed to the second conveyor, the common drive are connected. and that the tablet will be damaged. Furthermore, at

13. Device according to claim 7, characterized in known transfer devices, the tablet during transfer, that the axes (34.35) of the drive and deflection cores are only gradually conveyed from the upper to the lower conveyor.

3rd

628 310

different. The components used for this are therefore complex and prone to failure, and the conveying speed of the tablet is obviously limited.

The aim of the invention is to eliminate the disadvantages mentioned. The device according to the invention is characterized in that there is a support at the transfer point from the first to the second endless conveyor, over which each plate fed by the first endless conveyor tilts forward, that an auxiliary conveyor is arranged above the support in such a way that it has a rear section each tilting plate comes into engagement that at the end region of the auxiliary conveyor there is a stop member which can be pivoted in the conveying direction to hold back the rear edge of the plate.

The subject matter of the invention is explained in more detail below with reference to the drawings, for example. It shows:

1 is a perspective view of a part of a large dishwasher and conveyor systems for feeding the objects to be washed,

2 shows a section along the line II-II of FIG. 6 of an embodiment of the device according to the invention, FIGS. 3-5 sections similar to the section of FIG. 2, in which different positions of a tray are shown,

6 shows a section along the line VI-VI of FIG. 2, FIG. 7 shows a view of an auxiliary conveyor, and FIG. 8 shows a plan view of the auxiliary conveyor of FIG. 7. In FIG. 1, the dishwasher is designated by 1. The dishes are cleaned in a continuous process in this machine 1. These dishes are pre-sorted and are fed to the dishwasher 1 by means of three separate endless conveyors, which in the present exemplary embodiment are link conveyors. The first link conveyor 2 is intended for the cutlery 3. The second link conveyor 4 is intended for the tablet 5. The third link conveyor 6 is intended for the trays 7 with the food residues 8.

The tablets 5, known to be rectangular, have been placed on the conveyors 4 and are accordingly fed to the dishwasher. Longitudinal strips 9 ensure that the dishes are guided. The width of the conveying members of the conveyor 4 and the distance between the strips assigned to it are selected such that the tablets 5 are aligned almost exactly in the conveying direction, i.e. can have a deviation from the conveying direction of only a few degrees.

2 shows that part of the dishwasher 1 in which the dishes enter the machine. The link chain 4 with a tray 5 lying thereon enters the washing room of the dishwasher 1 through an opening 10 in the end wall 11. The link chain 4 moves around the known deflection wheels 12 of the link conveyor and exits the dishwasher 1 through a further opening 13 in the same end wall 11.

Below the link conveyor 4 there is a further link conveyor 14, by means of which the tablet 5, see FIG. 5, is conveyed into holders standing through the washing section of the dishwasher and cleaned accordingly. The deflection wheels 15 of this link conveyor 14 are mounted in an area below the deflection wheels 12 of the link conveyor 4.

The holders of the lower link conveyor 14 are metal wires coated with a thick plastic layer in this embodiment. These brackets consist of wires arranged in groups. Each group forming a holder for a tray 5 consists of a series of bow-shaped wires which are connected to a link-shaped, endless support 16. These sequences of the bow-shaped wires are aligned transversely to the conveying direction 18 of the link conveyor 14. The bracket sections 19 are arranged obliquely to the rear with respect to the conveyor 18. The bow sections 20 of the bow-shaped wires run parallel to the

Sections 19 and the wire section 21 of the bow-shaped wires connecting the two sections are again inclined in the conveying direction 18. Thus, the bracket sections 19 together with the bracket sections 20 form the actual holder of the 5 tablet 5, the sections 21 inclined in the conveying direction 18 serving as guides for introducing the tablet 5 entering the space between the sections 19 and 21 into the holding area.

As can be seen from FIG. 6, the support shaft 22 of the deflection wheels 12 of the upper conveyor 4 runs parallel to the support shaft 23 of the lower conveyor 14. The support shaft 22 is supported in bearings 24. The support shaft 23 is mounted in bearings 25. The bearings 24 and 25 are expediently connected to frame parts 26 of the dishwasher 1. The shaft 23 is connected to a drive motor (not shown) by means of a connecting element schematically indicated as a gear 27 in this exemplary embodiment, and the shaft 23 is correspondingly connected by means of a connecting element indicated as a gear 28. A sieve plate 29 is arranged under the conveyor 14.

20 An auxiliary conveyor 30 is arranged above the deflection wheels 12 of the link conveyor 4, see FIGS. 2-6. This is shown in detail in FIGS. 7 and 8. This auxiliary conveyor has two opposite conveyor units 30A and 30B. The conveying members of the conveying units are each an endless flat belt 25 31. The conveying direction is denoted by 48. Each flat belt 31 runs around two deflection rollers 32, 33, both of which are driven. A spring-loaded tensioning strip 56 extends between these deflection rollers 32, 33, on which the respective flat belt 31 lies. In this way, the flat belts 31 of the two 30 conveyor units are prestressed against one another in one direction. The shafts 34, 35 of the deflection rollers 32, 33 run vertically when the machine is set up. Each shaft 34, 35 is connected to a sprocket 36, 37, which are connected by a chain 38 to the sprocket 39 of a drive motor 40. 35 This ensures that both flat belts 31 forming the conveying element are driven without slip and thus convey at exactly the same speed.

Immediately after the auxiliary conveyor 30, seen in the conveying direction 32, a bar 41 is pivotally mounted 40 in bearings 45. The bar 41 is connected to a metal block 42 which acts as a weight load and holds the bar 41 in its drawn rest position.

The deflection wheels 12 of the upper conveyor 4 are arranged between support disks 43, the diameter of which is selected 45 such that they protrude above the conveying members of the conveyor 4 abutting the deflection wheels 12. These support disks are also firmly connected to the support shaft 22 of the deflection wheels.

The operation of this tablet entry device will now be explained with reference to FIGS. 2-5.

In Fig. 2, a tray 5 is shown, which rests on the link conveyor 4 and is inserted by this through the opening 10 in the dishwasher. The tray 5 runs with its longitudinal edges on the two support disks 43 and 55 assumes the position shown in FIG. 2. The tray 5 will now continue to run over the support disks 43. As soon as the center of gravity of the tray 5 reaches the sloping arc section of the support disks 43, that is to say in the drawings the center of gravity of the tray lies to the right of the central axis 44 of the 60 support disks 43, the tray 5 begins to tilt, as shown in FIG. 3 .

It should be noted here that the support disks 43 are only necessary in the case of a link conveyor 4 for the tray 5 to be tilted properly. In the event that the conveyor is a 65 belt conveyor, no support disks 43 are necessary.

If the tray 5 now tilts forward downwards, its rear part pivots upwards and its edge is gripped by the auxiliary conveyor 30 and assumes the position shown in FIG. 3.

628 310

The distance between the two flat belts 31 of the two auxiliary conveyors 30A, 30B '(FIG. 6), which are prestressed against one another by the tensioning strips 56, is now smaller by a small amount than the width of the tablet 5. Thus, the tray 5 between the two flat belts 31 is Conveyors 30A, 30B clamped. The s flat belt tensioning strips 56 d. H. the pressure springs acting thereon (not shown) give way elastically and thus the edges of the tray 5 are held firmly by the flat belts 31, the tray 5 with its edges also lying on the jacket of the two disks 43. 10th

The auxiliary conveyor 30 moves the tray 5 by means of engagement with the flat belts 31 to the position shown in FIG. 4. In this position, the tray 5 is at least approximately aligned with the wires 17 of the lower conveyor 14. If the rear end of the tray 5 now reaches the deflection point of the belts 31, 15 it is released by them and slides over the disks 43 into the wire holders 19, 20, 21 of the moving lower conveyor 14. The tray 5 places only a very short one Distance, now sliding on the disks 43, back without interference.

20th

If the tray 5 does not exactly enter the space between the wire sections 19 and 20, its lower edge meets the wire section 21 and is guided through this into said space. The tray 5 thus assumes the position shown in FIG. 5 in its holders and passes through the washing or rinsing part of the machine 1 in this position.

25th

Reference is now made to FIG. 4 again. It is now possible for two tablets to be placed on the conveyor 4 too close to one another. It is then possible for a subsequent tray 55 to strike the underside of the preceding tray 5 with its front edge, to hurl it forward after being released by the auxiliary conveyor, in such a way that it jams between the wire sections 19, 20 in such a way that it slides down it assumes the wrong position, designated 55 ', from which position the tray 55 cannot slide back into the correct position 5 (FIG. 5).

To prevent this, the bar 41 is arranged. This is pivotable about the axis 46 and connected to a counterweight 42 and is shown in the Fig. 4 rest position.

If the subsequent tray 55 hits the previous tray 5, the latter is pivoted by 47 and hits the bar 41 with its rear, upper edge. So that the bar 41 is pivoted counterclockwise. The counterweight 42 endeavors to return the bar 41 to its rest position. Thus, the bar 41 executes a subsequent clockwise swiveling or pendulum movement. This means that it not only swivels back to its rest position, but passes through the rest position and swings out into a position opposite to the first swung-out position. The sliding tray 5 or its edge is thus thrown back and assumes the desired inclined position, in which it then slides into the holders 19, 20 in the correct position.

M

5 sheets of drawings