DE2528798A1 - MACHINE FOR REMOVING ZIEBACK OR SIMILAR PRODUCTS FROM A FLOW WORKING ENDLESS CONVEYOR OVEN AND PLACING THEM INTO A HORIZONTAL PILE - Google Patents

Description

PATENT LAWYERS DIETRICH LEWINSKY ocoq ^ üo H:; NZ-JOACHIM HUBER 2528798

REINtR PRIETSCH MÖNCHEN 21 ₈₃₅ o

GOTTHARDSTR. 81

June 27, 1975

BARILLA G. & R. F.LLI S.p.A. Via Veneto, Parma / Italy

Machine for removing rusks or similar products from a continuous work endless conveyor belt oven and to set them up in a horizontal stack,

Priority from Italian patent application No. 46 832 A / 74 of June 27, 1974

The present invention relates to a machine for removing rusks or similar products from an oven and to set it up in the form of a neat horizontal stack on a suitable conveyor belt,

The manufacturing or working cycle for manufacturing

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of rusks and the like, includes the final baking of the same within an oven, with the products in orderly, lines that extend transversely and are equidistant from one another lie on an endless conveyor belt, moving forward inside the furnace.

After leaving the oven, the rusk products or the like are now removed by hand and in packs or small Stack arranged for subsequent wrapping in paper and for packing in boxes.

It is evident that this procedure results in increased labor costs as well as higher end product prices and which today does not allow increased production speeds from the point of view of economy.

Therefore, the aim of the present invention is to create and patent a machine which produces rusks fully automatically removes them from the belt on which they lie in the oven and puts them in an orderly horizontal stack on a suitable conveyor.

According to the invention, this is achieved by using suitable devices are provided at the furnace outlet, which consist of an endless conveyor belt, which by longitudinal guides in parallel trajectories within which a single row of rusks advances.

Downstream of the conveyor belt, each trajectory meets an analogous trajectory of a vertical one below or right-angled conveyor belt, on which, however, the biscuit products rest vertically on their edge are arranged.

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Downstream of the second conveyor belt is in accordance with the invention
a third and last conveyor belt parallel to the first
provided on which the transverse rows of rusk flow, which are arranged vertically on the second conveyor belt
are, these rows are advanced so that they
form a single horizontal stack, which is through a
suitable conveyor is supported, which is downstream
from the third conveyor belt and in continuation of the same is arranged.

According to the invention devices are provided to the
vertical balance of the rusk products on both the second and the third conveyor belt, as well as a suitable drive device for synchronous actuation of the
Ensure overall device.

Said drive device will not be used in the following
described individually because it has a common construction and is known to the person skilled in the art.

The working and construction properties according to the invention will become clear from the following detailed description with reference to the drawing figures, which relate to various preferred embodiments, which as
non-limiting exemplary embodiments are given; show in it:

1 shows a plan view of an embodiment according to the invention

Fig. 2 is a side sectional view of the same embodiment;

3 is a perspective view of the central part of the device according to the first embodiment of the invention shape;

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FIG. 4 shows a section along the line IV-IV in FIG. 3; FIG. Fig. 5 is a section along the line V-V of Fig. 4;

Figure 6 is a front view of the end portion of a second according to the invention Embodiment;

FIG. 7 shows a section along the line VII-VII in FIG. 6; FIG.

FIG. 8 shows the device according to FIG. 7 in a second working position; FIG.

FIG. 9 shows an enlarged detail of FIG. 6 in a working position; FIG.

10 shows the same detail in a second working position; 11 shows the same detail in a third working position;

FIG. 12 shows a possible embodiment which corresponds to the one shown in FIG. embodiment shown is equivalent;

FIG. 13 shows a section along the line XIII-XIII in FIG. 12.

Figures 1-5 show an oven 1, from which an endless belt 2 exits, on which the rusk products 3 are aligned along several equally spaced rows.

Upstream of said conveyor belt is a second conveyor made up of a pair of side chains and 5, between which elastic support means 6 are stretched.

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The chains 4 and 5 diverge slightly in the direction of movement, so that the rusk products 3, which are arranged on the elastic supports 6, move along this section slightly apart.

Downstream of the conveyor, which is provided with the elastic supports 6, there is a horizontal endless one Conveyor belt 7.

A plate 77 with a sawtooth cross-section is arranged upstream of the belt 7 in order to place the biscuit products on in such a way that they are all equidistant from one another on the deep side of their respective channel come to rest.

The front tape 7 is stretched between two end rollers 8 and 9 and is supported by a frame 10.

The movement is transmitted through a motorized reduction unit with speed change means 11 and is connected to the roller 9 by a belt or a chain transmission 12.

A plurality of parallel guides 14 are on the conveyor belt arranged in such a way that an equal number of movement paths for the rusk products is formed, which are then unloaded by the downstream conveyor and by the plate 7 7 with converging channels in the same Be spaced from each other.

The conveyor 7 moves in continuous motion synchronously with the speed of advance of the rusk products inside away from the stove.

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On the above-mentioned conveyor belt 7 there are thus several longitudinal rows of rusk products that are between the guides 14 are guided. These rows are pressed on a fixed intermediate surface 15, of which extends a set of chutes substantially semi-cylindrical.

These chutes are denoted by the reference numeral 16 and have a "C" cross-section to prevent the rusk products from tipping over to avoid.

Each trajectory on the intermediate surface 15 extends thus into one of the chutes 16, along which the rusk products one after the other onto an underlying, falling transversely extending belt conveyor 17, which is arranged at an appropriately lower height is.

Longitudinal guides 18 are provided on the belt 17 to the rusk products hold vertically.

Brushes 19 are provided at the meeting point between the individual chutes 16 and the respective guides 18, which facing downwards to prevent the rusks from rebounding to prevent.

Cross pins 13 are provided in the zone of engagement between the surface 15 and the guides 16 at a distance from the surface approximately equal to the thickness of the rusks, the purpose of which is to keep the rusks perfectly horizontal until they reach the surface 15 to avoid overlapping of the rusk products.

Thus on the belt 17 provided downstream and below the belt 7 there are so many rows of successive ones vertical rusk products advanced, as are movement paths on the belt 7.

Construction parts for locking the advance of the rusk products are provided near one end of the conveyor belt 17 to accommodate the several transverse rows of rusks to trigger them one after the other in an orderly manner and to lead them to a subsequent right-angled conveyor, on which the horizontal stacks are formed.

The conveyor belt 17 extends between two rollers 20 and 21 and is supported by a frame 22.

The roller 20 is rotated by a self-supporting drive unit 200, preferably with a speed change device is provided and works synchronously with the conveyor belt 7.

Figures 4 and 5 show that approximately at the end of the conveyor belt 17 a transverse plate 23 is provided, under which the belt 17 runs.

All of the rusk products 3 that are on the conveyor belt 17 run vertically, slide successively onto the transverse plate 23.

The width or width of the plate 23 is at least equal to the width or width of the conveyor belt 17.

Jaws 24 are provided with a lower soft surface and are arranged in a position above the plate 23, vibrating in an upward and a downward direction. These jaws derive from a transverse shaft 25,

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in relation to which they have a certain degree of freedom.

The jaws 24 are idle with a torsion stop on one side mounted on the shaft 25 and are pressed down by a spring 26. A supplement 27 is required from the end of the shaft 25 and slides on a cam 28, which on the rod 29 one of a cylinder and a Piston existing unit 30 is arranged, which is attached to the frame 22.

The end of the rod of the unit consisting of the cylinder and piston is attached to an attachment or an extension 31, which is connected to a transverse frame 32 from which a plurality of lugs 3 3 extend downward.

The supplements or lugs 3 3 are inserted individually between the longitudinal guides 18 which are provided on the belt 17.

From Fig. 4 it can be clearly seen that the feed movement the rod 29 of the unit consisting of the cylinder and piston causes the guide roller 277 of the cam 28, to come down, as a result of which the jaws 24 lower and a row of rusks 3 on the plate 2 3 temporarily block.

In addition, the rod 29 acts on the insert or lug 31 during its advancing movement and is induced clockwise rotation of the shaft on which the lugs 33 are wedged, raising the latter will.

The operation of the unit 30 consisting of the cylinder and the piston is cyclical by a microswitch

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controlled, which is operated by the chain 3 7 of the slide described below.

The lugs 33 are spaced from the plate 23 by a distance which is substantially the transverse dimensions of a rusk 3 is the same.

As the belt 17 moves continuously, the successive repetition of the work causes the from the Cylinder and piston existing unit 30 a cyclic blocking of a transverse row of rusk parts 3 on the Plate 23 and the simultaneous triggering of the row of rusk products located immediately downstream advancing with the belt to a position above part of a transverse plate downstream of the belt.

Each of the guides 18 terminates downstream in a set of brushes or elastic rivets 34 for the purpose of making the biscuit pieces to hold vertically, even if not all of the channels that are limited or limited by the guides 18. are formed, are occupied. A slide 36 is provided above that part of the flat plate 35 which is downstream the bristles 34 is arranged.

This slide is better shown in Fig. 5 and consists essentially of a transverse chain 37, which is cyclical moves and a plurality of pusher blades 38 supports.

Each pusher blade 38 is pivotally connected to the chain 37 and provided with elastic means which preferably holds it next to the chain 37 and parallel to it.

Each blade 38 also has a right-angled shoulder 39,

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which is provided with a role M-O on. The role 40 slides on a horizontal guide cam 4-1, which in a position corresponding to the lower portion of the chain 37 is provided and two inclined end parts 4 2 and 4 3 has. The part 42 takes the rollers 40 at the beginning of the working stroke of the slide unit and guides the Push blade 38 in a position perpendicular to the chain 37.

The part 4 3 is located at the opposite end and gradually guides the blade 38 into a parallel position to the chain 37 in order to prevent it from being disturbed by the horizontal pile of the biscuit pieces lying downwards will.

From the above description it can be seen that a certain number of parallel, vertical rusk parts under the Effect of the thrust blades 38 is brought, each of which in the sense of a transfer of these rusk parts to one suitable conveyor 144 located downstream.

Said conveyor consists of a lower fixed surface 45 which, in continuation of the fixed plate 3 is arranged on which the rusk parts pushed forward by the conveyor 17 run.

On the side of this surface 45 there are two chains 44, each of which has a set of right-angled lugs 4 which are provided with a set of bristles or brushes 47 individually.

These bristles or brushes can move the rusks sideways grab it and slide it forward onto the surface 4 5 if you hold it upright.

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A normal or vertical buffer conveyor is disposed downstream of the conveyor 144, of which the thus Rusk pieces formed in a vertical stack are fed directly to the feed channel of the wrapping machine will.

Both the conveyor 144 and the pusher 37 are through a cantilever drive unit 20 supported by the frame 22.

FIGS. 6-12 show the end part of the machine for producing the horizontal stacks in a further embodiment according to the invention Embodiment. The device according to this second Embodiment is constructed in a manner like that is similar to the above description in that it is around the point immediately upstream of the chute 16 acts.

The same reference number 7 therefore shows the conveyor belt which connects the outlet section of the oven with the stacking device connects.

In the second embodiment, this device is in the form of a set of slides that are in a arranged perpendicular plane and indicated by the reference numeral 101.

The number of slides is the same as the number of movement paths on the belt 7, as formed by the longitudinal guides 14 or limited that are provided thereon.

They converge into an outlet housing or an outlet chamber 102 which contains as many guides or vertical partitions as how rusks arrive from belt 7.

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The rusks run on the chutes 101 in a direction perpendicular to the direction of the belt 7 and then tilt
turn them over so that they rest on one side.

The vertical length of the vertical portion of the outlet housing or chamber is substantially that
Twice the transverse dimension of each rusk the same.

Two superimposed sections are formed in the chamber 102, which is provided with inner walls 101, as in FIG
7 and 8 shown.

A first row of vertical rusks located upstream is secured by a set of dowels
103 held at rest, which are individually supported by a spring 104 which is wound around a shaft 105.

The shaft 105 can make small rotations as a result of the engagement of a lug 106 with the upper surface of a triangular cam 107 which is to the chamber 102 laterally
and is driven by a unit 108 consisting of a cylinder and piston.

The tip of this cam is inserted between two rollers 109, each of which is rigidly connected to a lower plate 110.

The two lower plates 110 pull each other back and synchronously approach the downward and upward movements of the triangular cam 107, so that they the row of rusk parts 3, which are located in the lower part of the chamber (102 are induce to fall down.

The lug 106 rotates counterclockwise with respect

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to Figures 7 and 8 and in synchronism with the retraction of the two plates 110 and causes the elastic dowels 103 can be inserted into an equal number of holes provided in the housing 102 in such a way that that the dowels 103 lock the penultimate row of rusk parts 3 downstream of the housing 102 in position. These operations are repeated in a certain order and cause that one after the other falls down.

These rows fall into a cross trolley 111 which is provided below the housing 102.

The trolley 111 rides on a pair of suitable rails 112 and has a fixed end wall 113.

A rod 114, which is provided with an end plate, penetrates into the trolley 111 through this wall.

The rod 114 is connected to a lever 115 which is pressed in the direction of the housing 102 by a spring 116 is held and is subjected to vibration by a cam 117 which is continuously driven. is moved (see Figs. 6 and 9).

When a set of rusk pieces on the floor 111 of the trolley has fallen, the rotation of the cam 117 causes the lever 115 to advance to the left and the rod 114 and pushes the relative plate into the trolley, causing all of the rusk pieces against the opposite one End wall 118 of the trolley can be grouped (see FigJ-0). This wall is pivotally connected to the base and held vertically by suitable elastic means.

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The trolley floor 111 is at the same level as a continuous plate 119 that is between two Chains 120 are arranged each of which supports lugs 121 which are analogous to lugs 46 associated with of the First Preferred Embodiment.

The wall 118 is supported by a suitable elastic device held vertically and has a lug 12 2 at the bottom, which after the feed movement of the trolley on the left according to FIG. 9 (as shown better in FIGS. 10 and 11) strikes against a stationary stop 12 3, thereby causing the wall 118 to rotate forward.

In this way, the wall 118 becomes perfectly coplanar with the floor 111 of the trolley, whereby the packs of rusks, which are located in the trolley are pushed forward by the rod 114 and the relative plate, until they engage the bristles protruding from the supports 121 which are above the chains 120 are arranged.

The packs thus formed are gripped between these bristles and pushed forward on the plate 119 until they run into the usual conveyor or buffer located downstream.

Another embodiment is shown in FIGS. 12 and 13, what only the devices for transferring the rusk parts from dej? Multiple chute outlet chamber 102 101 point to a conveyor consisting of two lateral chains 131 provided with lugs 132, which have inwardly directed brushes and which run on the side of a central sheet metal plate 133.

The two chains 131 and the relative approaches are the chains

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120 and the relative supports 121 analogous, which have already been described and illustrated.

The plate 133 is interrupted below the chamber 102, which compared to the one already described above, the lower No device for supporting the rusk parts, which is actuated by the triangular wedge cam.

In the opening of the plate 113 there is a perpendicular sliding box 134- without lower or upper walls, the is provided with the same number of internal partitions as the number of walls in the chamber 102.

The box 134 is from the outer cylindrical rod. a double rod cylinder piston unit 138 via a Cross member 135 supported.

The box 134 has the same top view dimensions as the chamber 102. In its highest position is the Box immediately below the chamber 102, while in its lowest position, the box 134 is below the Plate 133 is located.

Within the box 134 slide a number of coplanar cross pieces 140, which are of an equal number of Support columns 141 are individually branched, all of which are connected to a common cross member 14 2.

The pillars 141 are at least as long as the height of the box 134 so that the crosspieces 140 under the chamber come to rest when they are in their highest position, with the box raised while they are with of the plate 133 will become coplanar if they are in their lower position while the box is raised.

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The cross member 14 2 is attached to the inner rod 137 of the telescopic cylinder-piston unit 138.

In Figs. 12 and 13, the components that the in the embodiment shown in Figs. 6-11 are common, the same reference numerals. .

The operation of the device described is evident. The box 34 is raised to stop the action of the bristles of the lugs 132, with the crosspieces Lift 140 under the chambers 102.

The rusk pieces fall onto the cross pieces 40, which are then lowered and the rusks in a line with them the plate 13 3 bring.

Then the box 134 is lowered, the rusk pieces being pulled away by the bristles.

This process is then repeated.

The invention is not limited to the embodiments described above so that modifications and improvements are within the scope of the appended claims possible are.

Claims;

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Claims (1)

Patent claims 1, machine for removing rusk or similar products from an endless conveyor belt oven and for setting them up in a horizontal stack, characterized by the total or partial combination, which has the following elements: - a first conveyor coplanar with the furnace belt and is arranged in continuation of the same, consisting of two lateral chains which are located between End pinions extend and diverge slightly in the direction of movement, between which suitable elastic or stretchable cross pieces are arranged on which the rusk parts are automatically separate from each other, - a plate in the form of laterally inclined converging channels, a second conveyor co-planar with and continuation of the first, it being consists of an endless belt on which suitable Longitudinal partition walls are provided, which form an equal number of movement paths for the rusk pieces, which are arranged on the belt and rest horizontally on a base, - a set of inclined slides, each on one of the trajectories of the second belt begins and each time to one of the trajectories of a third conveyor S09883 / 0402 the band leads, a third conveyor belt, which is arranged across the second conveyor belt and at a lower height than this is »on which suitable longitudinal walls are provided in order to form an equal number of movement paths for the rusk pieces that are on are located on the belt and rest vertically on one of its sides, an egg-shaped device for holding a transverse row of vertical rusk pieces in a certain section of the third band, a second device for holding, alternating and synchronous with the aforementioned device, the transverse row, which is arranged downstream of the previous row on the third belt, a third device for receiving and holding, vertically and laterally sliding, a complete one or incomplete row of rusks to the outlet of the third belt, a fourth conveyor arranged in continuation of said third device and consisting of a Sheet metal base consists on which side two parallel chains, which extend between suitable pinions, two Support sets of vertical plates provided with mutually spaced bristles, which support said biscuit pieces vertically, and then push them forward on said sheet metal base can, Multiple slides in the form of parallel converging Guides arranged in a vertical plane and arranged downstream of the second conveyor belt and are provided with a parallelepiped chamber, S09883 / 0402 which can contain at least two overlapping rows of rusk pieces, which are arranged vertically are, a fourth device for blocking the lower row of rusks in the outlet chamber of the multiple chute, a fifth device for blocking, alternatively with the fourth device, the penultimate lower one Rusk row in the outlet chamber of the multiple chute, a trolley which is arranged under the outlet chamber of the multiple chute and which receives the row of rusks which falls under the chamber and can push it transversely onto a conveyor similar to the aforesaid fifth conveyor is analogous, with the front wall of said trolley mounted pivotably below and can move in a direction coplanar with the truck base, and wherein the opposite wall consists of a push plate, which groups the rusk pieces against the first wall and then drives the overall trolley, where a Cam is provided to control the movements of the pusher plate, a unit that consists of a box that is open at the bottom and top and is provided with so many dividing walls on the inside, how the partitions are provided in the outlet chamber of the multiple slide, and a set of coplanar ones Cross pieces that branch off from a lower common cross piece via suitable rods, and between the partitions are inserted, the box and the crosspieces by the engagement of the two rods a telescopic cylinder-piston unit independently downward. Retractable, which unit rises between the chains of a conveyor, the aforementioned fourth conveyor is analogous to the rusk pieces 509883/0402 from the outlet chamber of the multiple slide together and then to bring them up to the height of the conveyor with the chute arranged, the action of the bristles during the lowering movement of the rusks on the crosspieces to stop and whereby the box closes can move to a position below the conveyor. 2, machine according to claim 1, characterized in that each of the above conveyors is synchronized with the other by engaging with an independent drive unit moved continuously at a variable speed. 3, machine according to claim 1, characterized in that the first means for holding a transverse row of vertical twin stacks in a certain section The third conveyor belt consists of a set of levers or horizontal jaws with a soft base which branch off from a transverse shaft and lie above the belt, being for insertion between the guides provided on the belt and a fixed plate supported on the Band is arranged below the lever and on which the rusk pieces are pressed, the rotation of the shaft from which the levers branch off is controlled by the engagement of a lateral lever, which is mounted on the shaft, with a translatable cam on the rod one of a cylinder and a piston existing unit is attached. 609883/0402 . Machine according to claims 1 and 3, characterized in that that the second means of holding, alternating and synchronous with the first means, a series of vertical rusks on the third conveyor in a section immediately downstream of the section in which said first device operates, consists of a set of perpendicular lugs which branch off from a shaft positioned above the belt is, being inserted deep between the guides on the tape and the rotation of the shaft in one or the other direction is controlled by the engagement of a lever which is connected to the shaft with the rod of a unit consisting of a cylinder and a piston is vertical. 5, machine according to claim 1, 3 and U, characterized in that the rotation of said two shafts which the wear said holding device, is derived from the same cylinder-piston unit. 6. Machine according to claim 1, characterized in that the third device which is arranged to a complete or incomplete row of rusks to the outlet of the third belt, perpendicular to hold and slide sideways, consists of a fixed plate placed at the outlet of the guides arranged on the third belt, said guides extending towards said fixed plate by suitable bundles of bristles or other elastic 509883/0402 Strips extend and a stop wall at the front of said guides in appropriate Spaced therefrom and suitable means for sliding in a lateral direction are provided on said plate. Machine according to claims 1 and 6, characterized in that the lateral pushing device consists of a chain, which extends between two pinions so that it lies over said fixed plate, wherein a branch from the chain at regular intervals lateral thrust blades are provided which are elastically pivotally connected to the chain and show a tendency to assume a position parallel to the chain, including on the lower branch the chain is provided with a cam which, by the action on a lug of each of said Blades, holding them at right angles to the chain along the length of the cam. Machine according to claim 1, characterized in that the fourth device which is arranged around the To hold the second row of rusks in the outlet chamber of the multiple chute, made of two horizontal half-plates consists, which are mutually approximated by suitable springs and held in suitable guides slide and mutually retracted through the use of a triangular wedge-shaped cam in between can be. S09883 / 04Ö2 9. Machine according to claim 1 and 8, characterized in that the first means for blocking the penultimate row in the outlet chamber of the multiple chute consists of a series of fingers or lugs arranged to penetrate laterally into said chamber
and to block each biscuit piece frontally and individually, these fingers being supported at the end by elastic lugs which can all swing together, branching off a shaft having a lever arranged around the vertical one
Movements of the triangular wedge-shaped cam
follow. 809883/0402 Blank page