MX2013002716A - Spiral extruded snack, device and method for the manufacture thereof. - Google Patents

Abstract

A descending spiral-shaped snack made by extrusion using an accessory additional to the extruding system, which enables a product or snack to be manufactured with flour of any cereal, the product having a descending spiral or whipping top shape. A conventional extruding system includes a diffuser or distribution disc for distributing the flour into a peripheral inner channel of an extrusion die, which is modified for making the strip of dough to emerge in an oblique or lateral manner, a peripheral containment element being arranged after the die, which consists in parallel tubes mounted over a disc, the tubes being coupled to the die by the near end portion thereof, while the far end portion is fastened by a disc, a hot air stream being circulated inside the tubes in a counter flow manner by intermittent pressure, which provides an intermittent resistance strength that causes the decrease and variation of the diameter of the extruded dough, which is coiled inside the wall of the perip heral containment element, the accessory including a cutting blade located in front of the disc intended to fasten the containment tubes.

Description

BOTANA EXTRUDED IN SPIRAL, APPARATUS AND METHOD OF MANUFACTURING OF THE SAME.

FIELD OF THE INVENTION The present invention relates to the manufacture of a food product, more particularly, to the manufacture by extrusion of a cereal snack having the particular shape of a spiral or a spin. Specifically, a device is placed at the end of an extruder, the device consists of a diffuser disk, an extrusion die, a peripheral containment element assisted by a backflow of air flow.

BACKGROUND OF THE INVENTION The patent application of the United States of America US 2012040078, published on February 16, 2012, whose inventor is Narwankar Shalaka et al., Discloses a given extruder and resulting product, in said die is manufactured a spiral shaped snack with three curved side arms with rounded ends. Each arm is fed by means of a conical port or hole that is in fluid communication with them.

The international application WO 2012015345, published on February 2, 2012, whose inventor is Fredlund Anders, describes a method and apparatus for manufacturing a flat fat-free snack, the apparatus consists of two hot flat plates, one of them with a vapor permeable coating, the snack it is maintained between the starter plates the space between the plates is fed with pieces of the snack so that later it is compressed by means of hot plates.

International application WO 2010144769, published on February 16, 2010, whose inventor is Currie Stephen et al., Describes a circular die with a plurality of holes around a central disc, said orifices define the extrusion trajectories of the mass, the circular die can be located at the exit end of the transporter worm of the mass.

The patent application of the United States of America US 2009311391 (MX / a / 2009/008992), published on December 17, 2009, whose inventor is Joaquín Fernández Baumeister and collaborators, describes a die to produce a rolled snack by means of the use of an extruder, the die consists of a circular body with central holes in the form of a coiled spiral, when the snack in pieces is desired includes a knife in front of the outlet to section the continuous exit of the snack.

The Taiwanese patent application TW 1259059, published on August 1, 2006, whose inventor is Conrad Keller Lewis, discloses a given extruder and method for using the same, the die consists of an injection section and another formation, is inserted into an appropriate compartment of the transit line of the extrusion dough so that they embody to allow the formation of a flavored-flavored snack.

The international patent application WO 03022549 (US 6722873, US 7157039, MX 04002276), published on March 20, 2003, whose inventor is Eugenio Bortone, describes a method and apparatus for extrusion manufacturing an inflated and rolled snack, the snack has the cylindrical spiral shape is achieved by means of a containment element that is located after the extrusion die; the containment element that provides a resistance force and consists of an elongated tube fitted with a device that provides mechanical strength to the mass exiting the tube; the containment is provided by a metallic pin driven by a spring that forces the mass trying to exit through the containment tube to roll up.

United States of America patent US 6428830, published on August 6, 2002, whose inventor is Matthews Bernard Trevor, protects a product or snack configuration of rolled and covered with a barrier.

United States of America patent US 5686128, published on November 11, 1997, whose inventor is Gregory Tracy et al., Describes an apparatus and method for triple extrusion of a snack, the extrusion die consists of a block with soft passages and rounded that allow the circulation of the mass, a central passage and a plurality of passages around the same, the die has a cylindrical shape and the product comes out through a central hole, the snack acquires a continuous cylindrical shape.

The Japanese patent application JP 62029936, published on February 7, 1987, whose inventor is Izumi Tsugio et al., Describes the production of a snack with double braid, by means of the use of an extruder that operates under pressure and heat.

United States of America patent US 4879126, published on November 7, 1989, whose inventor is Willard Miles et al., Describes a method for maintaining the braid of an expanded snack; the snack is extruded in the form of two elongated threads that come into contact when twisted.

United States of America patent US 4051162, published on September 27, 1977, whose inventor is Rose Larry Edward et al., Describes a method for making an inflated snack, the snack is formed by extrusion and can take a variety of configurations When produced by means of a simple die that adapts to the end of a cooking extruder, the die is adapted with a plurality of holes that have a plurality of passages associated that allow the production of snacks with a variety of characteristics in form.

BRIEF DESCRIPTION OF THE INVENTION It is an object of the present invention to provide an extrusion device that produces a coiled, spirally descending snack or top.

It is another object of the present invention to provide an extrusion die of substantially cylindrical body with longitudinal orifices in fluid communication with lateral inclined holes of smaller diameter.

It is still another object of the present invention to provide a fluid mass distribution disk, provided with a plurality of holes regularly distributed in a central surface.

It is still another object of the present invention to provide a device for containing or forming the snack, provided with a plurality of parallel forming tubes, the near end of said tubes being fixed by screws to the extrusion die and the far end to a disc fastening plane.

It is an object of the present invention to provide a plurality of forming tubes with a near end in the shape of a half-round and containing a wedge or rocker with a round lateral surface of seating with the inner wall of the tube, a flat surface of seating with the die of extrusion and a flat inclined surface that provides a tangential component of the speed of the mass.

It is also an object of the present invention to provide a pair of flanges that clamp tightly to the extruded dispensing disk assembly.

It is an object of the present invention to provide a nozzle located on the side face of each forming tube that provides an intermittent pressure air flow in counterflow of the mass therein.

It is also an object of the present invention to provide a tubular resistance which, in the manner of a casing, covers the distribution disk-die of extrusion and flanges, in order to maintain the melt temperature of the dough.

It is even an object of the present invention to provide a cutting device that is located close to the clamping disc of the forming tubes, that is, at the exit of the snack to cut it into pieces of the same size and make individual pieces.

It is still an object of the present invention to provide a cutting device formed by a driving arrow, a felt blade and a plurality of knives that rotate to make their cutting function.

It is an object of the present invention to provide a method for manufacturing a descending spiral or spin-shaped snack by the use of a modified extrusion die and a forming device thereof.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a perspective view of the extrusion die showing the lateral holes through which the mass and the fixing holes of the containment device emerge.

Figure 2 is a perspective view showing the rear face of the extrusion die distribution.

Figure 3 is a side perspective view of the containment device, shows the disc of the outlet end and the attachment end to the extrusion die.

Figure 4 is a side perspective view of the containment device, showing the rear face of the disc of the outlet end and the fastening elements to the extrusion die.

Figure 5 is a perspective side view showing the three additional elements to an extrusion worm to enable manufacturing of the spiral snack; a diffuser disc, an extrusion die and the containment device.

Figure 6 is a perspective view of the half-moon shaped rocker that obstructs the exit of each tube of the containment device.

Figure 7 is a perspective view showing the location of each of the components and the manner of attachment and fastening to the sheath of the transporting worm; the die and the diffuser are fastened by means of oppressive flanges.

Figure 8 is a perspective view showing the sleeve of the conveyor worm, the flanges in the clamping position and the circular resistance that embraces the flanges assembly and the internal extrusion die thereto.

Figure 9 is a perspective view showing the arrangement of the clamping head of the cutting knives and the arrow that transmits the rotation energy to effect the cutting of the snack, the knives are located opposite the exit of the element of containment.

DETAILED DESCRIPTION OF THE INVENTION The present application describes the manufacture of a spiral-shaped snack with the use of a conventional extrusion system, where after the end of the mixing conveyor worm is located a modified extrusion device that allows the obtaining of a snack in the form of spiral or spin.

The modified extrusion device has a diffuser or distribution disk or reducer die, with 55 holes evenly distributed in a central planar section; a main die or former with a rear face provided by a circular distribution channel with four longitudinal cylindrical holes evenly distributed in the axial direction, each of said holes is internally connected at its far end with a side inclined orifice of reduced diameter of where the fluid mass of cereal emerges, said orifices an oblique or lateral direction to provide a component of the tangential velocity and to slide on a surface in inclined plane at 45 ° which facilitates the mass to follow the direction of the inner wall of each tube or corresponding containment vessel. The mass emerging from the die has an exit direction in a range of 30 ° to 45 ° with respect to the direction of the die feeding hole. In one of the preferred embodiments, the containment element consists of four tubes, each arranged at an angle of 90 ° mounted on a disk located beyond the rear face of the main die, on the edges of said face the ends of the coupling are coupled. the forming tubes assisted by an intermittent air pressure to form a rolled product with diameter decreased in relation to the diameter of the forming tube that forms a downward spiral or top.

Figure 1 shows a perspective view of the front face of the extrusion die (10) with the flat rectangular seats or seat rope (15) of the forming device not shown that is fastened thereto by means of screws that are housed in the end side holes (14) to achieve a tight coupling in order to provide the necessary elements so that the guide of the fluid mass coming out of the holes (28) is allowed to be built; the extrusion die (10) has a substantially rectangular flat front face (20), a rear face not shown and a side face (34) in accordance with a perimeter seat ring (33) located at one end thereof and which allows the clamping of the die with the help of a clamping flange (not shown) , by means of matching flanges the given pair-pre-distribution disc (not shown) is clamped, the flange is placed on the lateral surface (34) and more specifically on the vertical wall (32) or flat eyebrow forming the seat perimeter ring, a round rope section (31) of the side face is the excess space defined between two seat sections (15); the inclined holes (28) of reduced diameter are in fluid communication with longitudinal holes of greater diameter (not shown) that start at the rear face; the crescent-shaped surfaces (25) function as seats on the front face of each of the former tubes. The extrusion die (10) with a flat front face (20), a cylindrical side face (34) with cuts defined by the surfaces (15 and 25) which form the seat of each forming tube, and a rear face defined by the flat face of the perimeter seat ring (33), a conical annular channel of distribution as a conical central disk that forces the mass to be distributed around on the perimeter ring where the longitudinal holes that cross the die are regularly distributed and have fluid communication with the lateral inclined holes (28), at the outlet of these holes the mass is released from the pressure and the heat to come into contact with the temperature and pressure of the environment, this causes the protruding mass to inflate or expand to form a continuous cylindrical strip whose final shape is defined within the forming apparatus in continuation of the extrusion die.

Figure 2 is a perspective view showing mainly the rear face of the extrusion die (10), also the side face (34) with the rectangular surface (15) that functions as a seat of a near end of the forming tubes, which are fastened thereto by means of screws that are threaded into the end holes (14), the ends of each forming tube allow the directed exit of the fluid mass through the hole (28) that feeds each one of the forming tubes. The longitudinal holes (50) are in fluid communication with the corresponding hole (28), note the offset of alignment between the hole (50) and (28), they are not aligned because some inclination of the mass output is required , whose direction is between the range of 30 ° to 45 °, preferably 32 °; as complementary information the mass after leaving the hole (28) still moves on a surface in inclined plane of a wedge or rocker that covers half the end of the diameter of the tube, in this way it is forced that when it enters the forming tube carries a tangential component of movement parallel to the lateral internal surface of the forming tube, this causes it to slide on the inner surface of the wall thereof. The cereal mass comes hot and under pressure from a longitudinal direction after having passed through a distributor which casts the dough on a conical surface central disk (52), that is, the face has a positive conical protrusion that allows the distribution homogeneous on an annular distribution channel (55) with a bottom surface and flat side walls ending in a perimeter also flat (56), together forming a perimeter seat ring, the flat face (56) comes into contact with a flat annular section of a distribution disk located before the extrusion die (10), the central disc (52) is limited by a vertical wall (51) that defines the internal diameter of the distribution channel (55) on which they are located a plurality of orifices (50) whose function is the assortment of the cereal towards the lateral holes of reduced diameter (28) with exit on the face of seat of the ends of the tubes f Formers, the side face of the extrusion die (10) has two round sections (34 and 31) defined by the same cylindrical diameter and delimited by the rectangular face (15) of the seat of the forming tubes. The longitudinal holes (50) have a diameter that is in the range of 4/16 and 8/16 or even in the range of 0.010 to 0.074 mils (6.35-12.72 mm) and preferably 5/16 inch (7.54 mm) in relation to the diameter of the orifices (28) is in the range of 2/16 and 5/16 of an inch (3.07-7.54 mm), preferably 3/16 of an inch (4.76 mm) with an inclination of 32 ° with respect to an axial direction parallel to the feed hole (50).

Figure 3 is a perspective view of the forming device (11) provided with a plurality of forming tubes (4) parallel to each other, fastened at the far or distant end by means of a disk (1) with a defined thickness and round holes for the housing of each forming tube that is held by the side face (8) where respective set screws (3) are placed for the fastening of the ends of the tube (4) to the disc (1), in addition a device of knives is placed in front of the holding disc, the knives cut the extruded product that leaves the far ends (2) of the forming tubes (4), the close ends that are fastened to the side face of the extrusion die, specifically on a flat rectangular face, each have two fastening eyebrows (6) enabled with a hole (9) that allows the placement of a screw of clamping, which is housed by threaded into the corresponding holes of the seat cord of the extrusion die and in this way a tight grip of the near ends of each forming tube is achieved with the flat surface of the die and extrusion. Each close end of the forming tubes has an internal cross section of half a diameter of depth to form a half-round end, with this shape it allows the welding of each of the eyebrows (6) to the side face of the extrusion die; at the end of the half-round and a lot of obstruction element of the internal diameter of each forming tube, a trapezoidal-shaped wedge (not shown) is placed with a round side face that sits on the internal surface of the forming tube, a flat lateral face in the shape of an inclined plane, preferably at 45 ° which serves as a guide to the extruded mass exiting through the side hole of the extrusion die, this guide cooperates to provide the mass with a tangential component of the velocity to the fluid mass moving in contact with the inner surface of the forming tube (4), i.e. , it is rolled inside the tube; the reference (7) indicates the fastening screw of each end wedge of the forming tube, said wedge allows the free exit of the mass through the side hole of the extrusion die, additionally the inclined lateral surface serves as a guide for the mass to be move by the internal side surface of the forming tube, to the tube is added an internal retention force to force the mass to acquire a coiled or helical shape, more specifically a downward spiral similar to a top, the strength of resistance it exerts in counterflow of the displacement of the mass in the former, but said resistance force is exerted intermittently in order to reduce the diameter of the roll more similar to the screw-top shape, the intermittency of the force is achieved by means of electrovalves that regulate the pressure of the flow of the air flow, said flow of hot air is injected in counterflow of the mass through the boquil the lateral (5) of each forming tube, the lateral nozzle (5) is located on the side wall next to the holding disc of the far end of the tubes at an angle of approximately 45 ° and in the opposite direction to the direction of flow of the mass, the direction of the nozzle is inherited by the air flow and a whirlwind that runs on the inner wall of each of the formators just before the hot and expanded mass reaches the transformation temperature or vitreous transition and the starches harden too much to lose the malleability of said mass just before the product comes out the end (2) of the forming tube. The tubes of the former, which in this specific case are four, are fastened at the far end by means of the disc (1) and at the end near the side of the extrusion die to which it is fixed by means of screws placed on it. hole (9) of the fastening eyebrows (6), the forming device (11) in this way is kept fixed to enable the production of a coiled spiral type descending cake or in a manner similar to the dancing spout; but with a rolled up body.

Figure 4 shows a perspective view of the forming device that specifically shows the near end with the position of the rockers or end wedge (40) in the position of use and released into the tubular space (43) of the tubes (4) of the former, the wedge or rocker (40) is attached to the tube by means of the threaded fastener (7). The ends of the tubes also show the cuts that give the shape of half-round to the section of near end and allows the coupling to the die of extrusion, each end is determinant to obtain the downward spiral shape of the produced snack, in effect , the rocker (40) obstructs half the diameter of the forming tube, has a flat surface in the form of an inclined plane (44) that serves as a guide to direct the mass that leaves the side hole of the extruder and directs it towards the inner wall of the tubular space (43), the mass comes out in the vicinity of the thin end of the rocker (40) and slides on the inclined surface (44) towards the inner wall of the tubular space (43), note the position of the air inlet nozzle (5) which is on the opposite side of the mass outlet so that the air current works as an intermittent resistance force controlled by a solenoid valve that regulates the flow pressure. The rocker arm (40) has a through hole (41) that allows the air to be expelled through the nozzle (5), the flat seat surface with the extruder die is in the same plane as the clamping eye (6) which is fixed through the hole (9). Note the release position of the rocker (40) showing the thick and thin section thereof, which defines the inclination of the guide surface for the mass to slide with a tangential component of the speed on the inner wall of the forming tube (4) subject at the far end to the disc (1) by means of the side screws (3) located on the side face (8) that act as a prisoner on the external side wall of each forming tube.

Figure 5 is an exploded perspective view of the main elements of the descending spiral snack forming apparatus of the present application, the distribution disc (67), the extrusion die (10) and the forming device (11). ) according to the location of use, the dough is fed by an extrusion worm to the distribution disk (67) that distributes it uniformly to the face of the extrusion die, the mass comes out through the side holes (28) on the rectangular seat face (15) of the forming tubes (4) where the top-shaped snack is formed and the final shape is already formed by the outlet end (2) of the forming tube, the sequence described describes the path followed by the dough to form the snack object of the present invention, whereby approximately 125 kg of extruded product is produced every hour.

The distribution disk (67) with a central flat section (64) with four concentric circumferential lines of holes in cooperation with a central or axial hole (65) which in total add 55 holes for the uniform distribution of the fluid mass on the face of the extrusion die, in the continuation of the face with holes, a negative inclined or concave inclined plane surface (63) extends outwards, ending in an internal diameter defining a step where a peripheral perimeter ring (62) of thickness (61), the perimeter seat ring has a diameter in coincidence with the ring of the extrusion die. The perimeter rings of the distribution disk and the extrusion die function as seat flanges for two matching flanges that hold the two pieces in the eyebrows (33 and 62) of the extrusion die (10) and the distribution disc (67). ) by means of screws and nuts that are housed in the holes of the clamping flanges.

The sections of the extrusion die (10) and the forming device (11) are coupled by means of fastening screws in cooperation with the eyebrows (6) whose holes coincide with the holes (14) of the extrusion die on the seating surface (15) of the lateral surface (34) of the extrusion die, the flat face (20) of the die is housed inside the interior space delimited by the forming tubes (4) which have associated the fastening eyebrows (6) and the nozzles or sockets air (5) that provide an intermittent air flow to exert a retention force of the flow of the dough to form the snack object of the present application.

In relation to the intermittent air flows fed by the nozzles (5), for four forming tubes there are also four nozzles, one solenoid valve regulates two air flows, then for the four tubes a pair of solenoid valves is required, they change the flow of air in intervals of approximately 4 to 6 seconds regulate the pressure from 60 psi up to 70 psi (4.22 - 4.92 kg / cm2) in the peak of higher pressure the smaller curls or of reduced diameter are formed, giving rise to a lower rolled snack diameter in relation to the diameter of the forming tube, in this way a spin-type or descending spiral is generated.

Figure 6 is a perspective view (48) of the end wedge (40) formed by the flat round side surface (46) that overlaps the inner wall of the end of the forming tube, has a through hole (41) through which the air stream supplied by the nozzle is purged; this rocker (40) functions as a half tube cap and also the inclined flat surface (44) serves as a guide for the mass emerging from the extrusion die, the flat surface (47) has the function of feeling with the flat surface of the extrusion die, in the thick end of the wedge (40) has a round recess that allows the passage of the clamping screw with the extrusion die. The mass comes out approximately near the thin end of the wedge (40) to continue to flow on the surface (44) which serves as a guide to provide a displacement component in the tangential direction of the internal surface of the forming tube, with said tangential component the mass in transit follows the direction on the internal surface of the forming tube to generate a rolled product with an external diameter equal to that of the forming tube, the Rolling is generated due to the resistance force directed in the opposite direction to force the cylinder of fresh mass to fall back on the inner surface of the forming tube, the strength of resistance or air flow is supplied intermittently with variation of the pressure, when it is high the external diameter of the winding is reduced away from the wall of the former, when it decreases, it is only rolled on the wall of the forming tube and results in a cylindrical rolling product, the resistance force acts inside each forming tube in the displacement towards the exit end, just before the mass reaches the temperature of s olidification of the starches or glass transition, allowing the exit of a product or snack sufficiently solid to keep the shape rolled. The wedge or rocker (40) has the shape in such a way that it covers half a turn, that is, 180 ° or half a reed to cover half the diameter of the tube at the near end.

Figure 7 is a perspective view of the manufacturing end of the snack of the present invention, in the direction of transit of the dough with the extruder jacket (74) containing inside a worm drive that circulates the pressurized cereal mass towards the extrusion die, at the end of the extruder jacket (74) there is located a flange (71) which in cooperation with the flange (72) tightly fastens the distribution disk (67) and to the die of extrusion (10), the fastening is carried out by means of screws (73) and respective clamping nuts that are placed through each of the matching holes (75) of the flange assembly.

Figure 8 is a perspective view of the assembly of parts of Figure 7, in its position of use when the set of flanges (71 and 72) hold and hold the distribution disk and extrusion die with the screws (73 ) in the proper tightening position; the mass is displaced by the extruder at a high temperature to maintain the proper fluidity it is necessary to maintain the temperature in a certain interval that does not allow the gelatinization of the starches and therefore hardens. For this reason it is necessary to maintain the set of flanges, distribution disk and extrusion die inside a resistance housing (81) fed through the electrical contact (82); the resistor (81) completely covers the aforementioned assembly and maintains the constant temperature within a range of 170 ° C to 200 ° C, more specifically for the preferred embodiment at the temperature of 180 °, the temperature selection will depend of the moisture content of the cereal supplied by the extruder, said cereal in the preferred embodiment is a mixture of corn, butter and other additives with a granulometry equal to 5 (five). Note that the resistance does not cover the section of the forming tubes, because in the formation zone it is required that the temperature falls so that the mass hardens and maintains the shape acquired in the former.

Figure 9 shows a view of the cutting device of the formed snack placed directly in front of the outlets defined by the flat end plate of the forming tubes; the cutting device has a drive shaft (91) provided with a fastening pin where the blade holder (94) is placed by means of the stud (95), the fastener has rectangular cuts distributed in a regular manner at a predetermined angle, in each of the cuts the seat (93) of the knife (92) is engaged which in the turning movement cuts the extruded mass that leaves the forming tubes. The drive shaft can be inclined at will to operate in a range of inclination between 80 ° and 90 °, the axis and consequently the knife rotates with a frequency of 25 to 30 Hertz to obtain a snack product of a predetermined length; specifically the turn is 26 and 28 Hertz for the preferred modalities. The cutting device is placed facing the flat disk holding the forming tubes in an axial direction thereto.

Claims (23)

1. - An apparatus for the extrusion manufacturing of a spiral shaped snack, consisting of: a distribution disc provided with a plurality of holes in a central area that homogeneously distributes a cereal mass with a perimeter ring for the seat with an extrusion die and fastening thereof by means of a flange; an extrusion die of substantially cylindrical body having a rear face, a substantially rectangular front face, a cylindrical side face with regularly distributed rectangular cords acting as a seat for a near end of containment tubes or formers, the rear face it has a rectangular annular channel defined by a seat and fastening ring in cooperation with a central disk with conical inclined central face that distributes the cereal mass in a homogeneous manner on the annular channel, the channel has a plurality of longitudinal cylindrical holes which they conduct mass and have fluid communication with an equal plurality of lateral holes of corresponding smaller diameter through which the mass emerges and expands to pass to a containment tube or former, the die and the distribution disc are held by means of matching flanges located in perimeter rings of each one; a forming device consisting of parallel containment tubes or formers, provided with a near end and a far end attached to a common clamping disk with round coupling holes, the near end is fixed by means of screws to a rectangular rope or seat located on the edge defined by the side and front face of the extrusion die, each said close end of the tubes has a medium diameter obstruction by means of an end wedge or rocker arm with a round seat face with the inner wall of the tube end, a flat seat surface with the extrusion die rope and a flat inclined face that functions as a guide for directing the mass with a tangential component of the velocity toward the inner wall of the containment tube or former, inside the tube a resistance force is provided with counterflow air through side nozzles in order to form the coiling of the snack and a characteristic peak of it; a tubular electrical resistance that embraces the distribution disc-extrusion die set, to maintain the adequate temperature for the fluidity of the mass; a cutting device provided with rotating blades that cut the snack to a defined length thereof, located opposite the holding disk at the far end of the forming tubes.

2. - The apparatus for the manufacture by extrusion of a spiral shaped snack according to claim 1, further characterized in that the distribution disk has a flat central surface with an axial hole and the rest distributed in concentric circles to it, the faces they extend from said central surface towards the external diameter in Concave surfaces that direct the mass towards the distribution surface with holes and on leaving the distribution on a conical surface of the extrusion die.

3. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 2, further characterized in that one of the preferred embodiments the number of holes is the number of fifty-five (55).

4. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the distribution disk has a perimeter ring with a front seat surface with the extrusion die and a rear seat a clamping flange thereof.

5. - The apparatus for the extrusion manufacturing of a spiral-shaped snack according to claim 1, further characterized in that the rear face of the extrusion die is diametrically bounded by a ring with flat surfaces, a seating surface with the disc of distribution and another one of seat with a flange of subjection of the same.

6. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the rear face of the extrusion die has a positive conical central surface that distributes the mass in a homogeneous manner on an annular flat channel with vertical walls, defined by the central surface and the perimeter ring, the channel has a plurality of longitudinal cylindrical holes that lead the mass towards the interior where each hole is connected fluidly with a cylindrical orifice of smaller inclined diameter that emerges on the side face of the extrusion die, specifically on a flat seating surface.

7. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 6, further characterized in that in one of the preferred embodiments the number of corresponding longitudinal and inclined holes are four, each rectangular seat surface has two holes of end for fixing by means of screw.

8. - The apparatus for the extrusion manufacturing of a spiral-shaped snack according to claim 6, further characterized in that in one of the preferred embodiments the flat seating surfaces on the side face are four, on each surface there is the end of exit of an inclined orifice of smaller diameter and the two end orifices for the fastening of each near end of the forming tube.

9. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the distribution disk and the forming die are butted by means of two flanges coincident located on the outer face of each of the corresponding perimeter rings.

10. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the tubular resistance is placed as die housing and distribution disk, to maintain the temperature between 180 ° C and 220 ° C.

11. - The apparatus for the extrusion manufacturing of a spiral-shaped snack according to claim 1, further characterized in that each tube of the forming device is held by means of screws at the end near the extrusion die, each far end engaging to the corresponding hole and fixed to the clamping disk by means of a lateral clamping screw located on the perimeter of said disk.

12. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that each containment or forming tube has a cut at the near end that forms a half-round, said end is capped by means of an end wedge or rocker arm that covers half a tube diameter and diametrically has a flat horizontal surface that functions as a seat with the flat rectangular surface of the extrusion die.

13. - The apparatus for the manufacture by extrusion of a spiral shaped snack according to claim 12, further characterized in that the rocker has a cylindrical through hole that allows the purge of the backflow of air, it is fixed to the Wall of the tube by means of a screw and covers half diameter of the tube and in cooperation with the cut forms a half-round.

14. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that on the side face and in the vicinity of the far end of each tube, a nozzle is located where a stream is supplied of air in counter flow of the mass that provides a retention force.

15. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the forming device, in one of the preferred embodiments, has four parallel containment tubes or formers.

16. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the cutting device is placed directly in front of the holding disc of the containment tubes, that is, at the exit of the snack by the far end of them.

17. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 1, further characterized in that the cutting device consists of a drive shaft with coupling pin of a blade holder, the support has housings where the seats of the knives are screwed.

18. - The apparatus for the extrusion manufacturing of a spiral shaped snack according to claim 17, further characterized in that the preferred embodiment contains two cutting blades, which can be placed at cutting angles of 80 ° and up to 90 °, in order to make a sloping cut.

19. -A method of manufacturing by extrusion of a spiral shaped snack consisting of the steps: pure cereal feed or mixed with additives, by a hopper that feeds the worm and extruder shell; homogeneous distribution of the cereal mass by means of a distribution disk that feeds an extrusion die; distribution of the cereal mass in an annular channel of the extrusion die, in said channel there are regularly distributed longitudinal cylindrical feed holes through which the mass of the channel flows and have fluid communication with inclined lateral cylindrical holes of smaller diameter; feeding the corresponding inclined feeding holes, from which the dough emerges and inflates due to pressure loss; but a tangential velocity component comes out; sliding of the inflated mass on the rocker, specifically on a flat surface on an inclined plane that provides a tangential component of speed with respect to the internal surface of the forming tube; application of a resistance force with intermittent air pressure in backflow of the mass, the current is applied by each of the corresponding nozzles of each forming tube; rolling of the inflated mass on the round inner surface of the forming tube, due to the resistance force exerted by the backflushing air; application of air with intermittent pressure to form a coil with a descending diameter or ending in a tip, a tip type; make cut of the figure of the snack formed by means of a device of cut with orientation of the same with inclination of 80 ° to 90 ° to obtain a cut inclined and that makes more pronounced the tip of the snack.

20. - The extrusion manufacturing method of a spiral shaped snack according to claim 19, further characterized in that the homogeneous distribution of the dough is achieved by means of a distribution disk with a plurality of central holes.

21. - The extrusion manufacturing method of a spiral shaped snack according to claim 19, further characterized in that the distribution of the dough on the feeding channel is achieved by means of the conical central surface of the extrusion die.

22. - The extrusion manufacturing method of a spiral shaped snack according to claim 19, further characterized in that the resistance force is applied by means of an intermittent air flow regulated by solenoid valves

23. - The extrusion manufacturing method of a spiral shaped snack according to claim 19, further characterized in that the resistance force forces the dough to slide on the inner wall of the forming tube, providing a rolling of the dough strip , the variation of pressure causes the diameter of the winding to be variable to form a body with tip type tip or downward spiral.