ES1259247U - MACHINE FOR MOLDING DASSES IN THE FORM OF BALL (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Machine (1) for molding doughs (2) in the shape of a ball, of the type that comprise a rotating tub (3) inside which a static spiral (4) is arranged, whose spiral comprises an internal vertical conduit (40) Hollow with a lower outlet (41) that is communicating with its outer part, where an ascending spiral tooth (42) is arranged in the direction of rotation of the tank (3), with a diameter slightly smaller than the inside diameter of the tank (3) to allow the rotation of the latter and the ascent of the mass (2) through the channel (5) formed between the spiral tooth (42) and the wall of the tub (3) acquiring the molding until its exit at the end upper (33) of the tub (3); characterized by: - the spiral (4) comprises a lower protruding male (44) that is removably embedded in a socket (6) welded to the pedestal (7) of the machine (1), said socket (6) comprising a hole (60) where the male (44) is inserted, - the socket (6) comprises a neck (61) around its hollow (60), in which neck (61) a first pulley (8) is mounted through bearings (80); being the first pulley (8) fixed to the base of the tank, and - whose first pulley (8) comprises a mechanical coupling (90) to a drive motor (9). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Ball-shaped dough molding machine

OBJECT OF THE INVENTION

The present invention relates to a machine for molding dough in the shape of a ball, for example, bakery dough or pastry, for subsequent baking.

BACKGROUND OF THE INVENTION

At present, machines are known for molding doughs in the shape of a ball that comprise a rotating tub, inside which a static spiral is arranged.

This spiral comprises a hollow interior vertical conduit with a lower outlet that communicates with its outer part, where an ascending spiral tooth is arranged in the direction of rotation of the tub, with a diameter slightly smaller than the interior diameter of the tub to allow the rotation of the latter and the ascent of the dough through the channel formed between the spiral tooth and the wall of the tub, acquiring the molding until its exit through the upper edge of the tub.

Some of these existing machines, for example, the one shown in patent ES 2279737, claims that it has a clamping structure in which the spiral is hung from its upper part, and at the bottom it presents a structure to prevent radial movement of the spiral by its bottom. In this way, axial forces are eliminated between the spiral and the reducer that drives the rotation of the tub. However, this machine has the drawback that the spiral, when hanging from its upper part, requires a robust supporting structure. In addition, this support in case of having lateral supports as seen in their figures, creates a tipping torque in the spiral that produces a decentration due to inclination in it -and due to the necessary tolerances of the lower radial movement prevention structure- , which forces to give a greater separation between the tooth of the spiral and the tank to avoid contacts, a separation through which the mass of the ball can escape, especially in the lower part of the tank when the molding of the dough begins, since which is the point where the tipping torque is greatest due to its greater distance from the structure of lift. Furthermore, the disassembly of the spiral is made difficult, since the upper part of said upper clamping structure has to be disassembled.

These drawbacks are solved in the machine of the invention

DESCRIPTION OF THE INVENTION

The machine for molding dough in the shape of a ball of the invention is of the type that comprises a rotating tank inside which a static spiral is arranged, which spiral comprises a vertical hollow interior conduit with a lower outlet that is in communication with its outer part. , where an ascending spiral tooth is arranged in the direction of rotation of the bowl, with a diameter slightly smaller than the inner diameter of the bowl to allow the rotation of the latter and the ascent of the dough through the channel formed between the spiral tooth and the bowl. wall of the tub acquiring the molding until its exit through the upper end of the tub; where according to the invention :

-the spiral comprises a lower protruding male that is removably embedded in a socket integral with the pedestal of the machine, said socket comprising a hole for the male entrance, and therefore for mounting and supporting the spiral, the socket being fixed to the be attached to the pedestal of the machine,

-the socket comprises a neck around its hole, in the neck of which is mounted, through bearings, a first larger pulley to carry out a transmission reduction - it could also be a gear. This allows the rotation of the pulley independent of the socket; the first pulley being fixed to the base of the tank to produce its joint rotation when the first pulley rotates, and

-whose first pulley comprises a mechanical coupling to a drive motor, which is mounted on the pedestal.

In this way, a robust fixation is obtained, free of bells, both of the tank and of the spiral, since the neck allows the fixing male to be given an adequate length -which avoids bells of the spiral-, and a good centered support to the tank through the bearings and the upper diameter of the pulley -as it is fixed to the base of the tank-. This is, as the pulley has a large diameter seeking to make a reduction with respect to the motor speed, this large diameter works as the base of the tank as it is directly supported on the pulley, increasing its stability, which has been an advantage. unexpected, seeking not to have a gear reducer under the tank so that it would not support any weight. Furthermore, this configuration facilitates the upper dismounting of the spiral, simply by pulling it from the top, without the need to dismantle any upper element.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a view of the machine of the invention where the inner spiral of the tub is outlined, which would be translucent or opaque.

Figure 2 shows a side view of the machine of the invention with the tub sectioned to appreciate the spiral.

Figure 3 shows a view similar to that of Figure 2 with the spiral and the pedestal also sectioned.

Figure 4 shows an enlarged detail, marked in figure 3, in the area of the spiral fixing and the tank drive means.

Figure 5 shows a sectioned side view of the machine from a point of view perpendicular to that of figure 3.

DESCRIPTION OF A PRACTICAL EMBODIMENT OF THE INVENTION

The machine (1) for molding doughs (2) in the shape of a ball of the invention is of the type that comprises a rotating tub (3) inside which a static spiral (4) is arranged, whose spiral comprises a conduit (40) hollow interior vertical with a lower outlet (41) (see fig 3) that is communicating with its exterior part, where there is an ascending spiral tooth (42) in the direction of rotation of the tub (3), with a diameter slightly smaller than the inner diameter of the tank (3) to allow the rotation of the tank and the ascent of the mass (2) through the channel (5) (see fig 2) formed between the spiral tooth (42) and the inner wall of the tub (3) acquiring the molding until its exit through the upper end (33) of the tub (3); where according to the invention:

-the spiral (4) (see figs 3 and 4) comprises a male (44) lower protrusion that is located removably embedded in a plinth (6) attached to the pedestal (7) of the machine (1), said plinth (6), which is therefore fixed, comprises a hole (60) (see fig 4) for mounting and supporting the the spiral (4) through the male (44),

-the socket (6) comprises (continue with fig 4) a neck (61) around its hole (60), in which neck (61) a larger first pulley (8) is mounted through bearings (80 ), which allows its independent rotation of the socket (6); the first pulley (8) being fixed to the base of the tub (3).

-whose first pulley (8) comprises a mechanical coupling (90) (see fig 1) to a drive motor (9) (see fig 3), which is mounted on the pedestal (7).

Preferably, the male (44) and the hole (60) comprise (see fig 4) in corresponding areas a cylindrical upper section (440, 600) and a flattened lower section (441, 601) (see fig 4) to achieve better immobilization of the spiral (4) against twisting.

Furthermore, it is preferred that the base (30) of the tub (3) comprises a lower recess (31) machined to receive an insert (81) of the first pulley (8) and to solidify its rotation more effectively.

Regarding the mechanical coupling (90) of the motor (9) to the first pulley (8), it is preferred that it comprises (continue with fig 4) one or more belts (91) coupled to channels (92) arranged in the first pulley (8) and to one or more second pulleys (93), of smaller diameter (see fig and 1), driven by the motor (9). This reduces the rotational speed of the motor transmitted to the tub (3), and at the same time stabilizes the verticality and resistance to ringing of the tub (3). However, the second pulleys (93) could have any diameter, even greater than that of the first pulley, using a reducer on the motor.

Furthermore, it is preferred that the first pulley (8) is mounted on the neck (61) through at least two parallel bearings (80), as seen in fig 4, to achieve a greater height of the neck (61 ) and the first pulley (8) itself and a better stabilization of the spiral (4) and of the tank (3), which prevents the chime of both elements.

The provision of a quick fixation (10) of the male (44) of the spiral (4) to the socket (6) to facilitate the disassembly of the spiral (4) is also preferred. Said quick fixation ideally comprises a recess (100) (see fig 4) of circular segment shaped section arranged in the male (44) of the spiral (4), and a cylindrical retainer (101) arranged in contact with the section of said recess (100) and provided with a lateral flat recess (102) of greater depth than the recess (100), the cylindrical retainer (101) comprising an external knob (103) (see in figs 1 and 2) for its turn. In this way, when rotating the cylindrical retainer (101) by means of its knob (103), the flat recess (102) is made to coincide with the recess (100), allowing the extraction of the spiral (4), or the perimeter is made to coincide Not lowered of the cylindrical retainer (101) with the recess (100), blocking the extraction of the spiral (4).

Additionally, the machine can comprise a hopper (11) or conveyor belt for collecting the molded masses (2) adjacent to the upper edge (33) of the tub (3), and which is supported on the pedestal (7), ideally by means of some pillars (77), which can be used to arrange upper pushers (12) (see in fig 2) directed towards the outer contour of the tank (3), to improve its centering, if the height of the tank (3 ) and spiral (4) is very large.

Having sufficiently described the nature of the invention, as well as the way it is carried out in practice, it should be noted that the provisions indicated above and represented in the attached drawings are susceptible to modifications in detail as long as they do not alter the fundamental principle.

Claims (10)

1. -Machine (1) for molding doughs (2) in the shape of a ball, of the type that comprise a rotating tub (3) inside which a static spiral (4) is arranged, whose spiral comprises a vertical conduit (40) hollow interior with a lower outlet (41) that is communicating with its exterior part, where an ascending spiral tooth (42) is arranged in the direction of rotation of the tub (3), with a diameter slightly smaller than the interior diameter of the tank (3) to allow it to rotate and the dough (2) to rise through the channel (5) formed between the spiral tooth (42) and the wall of the tank (3) acquiring the molding until its exit through the upper end (33) of the tub (3); characterized by: -the spiral (4) comprises a lower protruding male (44) that is removably embedded in a socket (6) integral with the pedestal (7) of the machine (1), said socket (6) comprising a hole (60) where the male (44) is inserted, - the socket (6) comprises a neck (61) around its recess (60), in which neck (61) a first pulley (8) is mounted through bearings (80); being the first pulley (8) fixed to the base of the tank, and -whose first pulley (8) comprises a mechanical coupling (90) to a drive motor (9). 2. -Machine (1) for molding doughs (2) in the form of a ball according to claim 1, where the male (44) and the hole (60) comprise, in corresponding areas, a cylindrical upper section (440, 600) and a lower section in flattened form (441, 601). 3. -Machine (1) for molding doughs (2) in the form of a ball according to any of the preceding claims, wherein the base (30) of the tub (3) comprises a recess (31) machined to receive an insert (81). ) of the first pulley (8). 4. -Machine (1) for molding doughs (2) in the shape of a ball according to any of the preceding claims, wherein the mechanical coupling (90) comprises one or more belts (91) coupled to channels (92) arranged in the first pulley (8) and one or more second pulleys (93) of smaller diameter arranged on the motor shaft (9). 5. -Machine (1) for molding doughs (2) in the shape of a ball according to any of the preceding claims, where the first pulley (8) is mounted on the neck (61) through at least two parallel bearings (80). 6. -Machine (1) for molding mass (2) ball - shaped according to any of the preceding claims, comprising a quick fastener (10) of the male (44) of the spiral to the socket (6). 7. -Machine (1) for molding masses (2) in the shape of a ball according to claim 6, wherein the quick fixation comprises a recess (100) with a section in the shape of a circular segment arranged in the male (44) of the spiral (4) and a cylindrical retainer (101) arranged in contact with the section of said recess (100) and provided with a lateral flat recess (102) of greater depth than the recess (100); the cylindrical retainer (101) comprising an external control (103) for its rotation. 8. -Machine (1) for molding mass (2) ball - shaped according to any of the preceding claims, comprising a hopper (11) or conveyor belt collecting the masses (2) molded adjacent the upper edge (33 ) of the tank (3), and which is supported on the pedestal (7). 9. -Machine (1) for molding dough (2) in the form of a ball according to claim 8, where the hopper (11) or conveyor belt is supported on the pedestal (7) by means of pilarets (77). 10. -Machine (1) for molding doughs (2) in the shape of a ball according to claim 9, where pushers (12) are arranged on the pillars (77) directed towards the outer contour of the tub (3).