This application claims priority from Italian patent application No. TO2013A000716 filed on Sep. 5, 2013, the entire disclosure of which is incorporated herein by reference.
The present invention relates to a bowl for a kneading machine, comprising a bottom provided with an opening, and a discharge device equipped with a plug and With actuator means configured for moving said plug between a position for closing said opening, in which the latter is engaged by the plug, and a position of discharge of the bowl, in which the opening is disengaged from the plug so as to he able to discharge through it the dough prepared in the aforesaid bowl.
A bowl of the type referred to above is, for example, described in the patent application No. DE19757311A1. In the solution described in this document, the actuator means are arranged on the top side of the bowl and comprise a linear actuator and a lever mechanism designed to convert the rectilinear motion of the actuator into a movement of oscillation of the plug about a horizontal axis. The lever mechanism is connected to the plug via a shall passing within the bowl, associated to which are motor means. In the opening position, the plug is in contact with a scraper element and in said condition is set in rotation by the aforesaid motor means so that the scraper element comes to slide on the plug, removing any possible residue of dough present thereon.
The object of the present invention is to provide a bowl equipped with a discharge device that is simpler from a constructional standpoint and less cumbersome. Preferred embodiments of the invention moreover have the purpose of providing a discharge device that is able to carry out an operation of cleaning of the plug without the aid of further purposely dedicated actuator means.
The purposes outlined above are achieved via a bowl which has the characteristics specified in the claims.
The claims form an integral part of the technical teaching provided herein in relation to the invention.
Further characteristics and advantages of the invention will emerge clearly from the ensuing description with reference to the annexed drawings, which are provided purely by way of non limiting example and in which:
Illustrated in the ensuing description are various specific details aimed at providing an in-depth understanding of the embodiments. The embodiments may be provided without one or more of the specific details, or with other methods, components, or materials, etc. In other cases, known structures, materials, or operations are not illustrated or described in detail so that various aspects of the embodiment will not be obscured.
The references used herein are provided only for convenience and hence do not define the sphere of protection or the scope of the embodiments.
With reference to the figures, the reference number 10 designates a bowl for a kneading machine, comprising a bottom 2 provided with an opening 4, and a device 6 configured for discharging the dough prepared in the bowl through the opening 4.
The discharge device 6 comprises a ping 8 configured for closing the opening 4 and actuator means configured for moving the plug 8 between a position for closing the opening 4 (illustrated in
In various embodiments, as in the one illustrated, the discharge device 6 comprises a linear actuator 16 configured for moving the plug 8, as well as earn means configured for guiding movement of the plug 8 along a predetermined path.
In various embodiments, as in the one illustrated, the aforesaid cam means comprise a stationary structure 22 having at least one cam track, and a slider assembly 18 Which carries the plug 8 and which engages said cam track. In various embodiments, as in the one illustrated, the stationary structure comprises two identical cam tracks 26′, 26″, arranged aligned and/or parallel and shifted, both of which are engaged by the slider assembly 18. The term “shifted” is to be understood herein as describing a mutual arrangement of the tracks such that the tracks themselves, if these are contained in one and the same plane of the structure 22, or else their projections in one and the same theoretical plane parallel to their respective planes, if the tracks are contained in different planes of the structure, are found to be displaced with respect to one another in any direction of said plane of the structure 22 or of the aforesaid theoretical plane. As will be seen hereinafter, this configuration enables the plug 8 to be kept in a constant orientation during its movement.
In various preferred embodiments, as in the one illustrated (see in this connection
The slider assembly 18 comprises a first support 18A and a second support 18B arranged alongside one another in a direction transverse to the wall 22, to which the plug 8 is fixed at its underside; carried in cantilever fashion by the two supports are two pins 28 that come to engage the cam tracks 26′, 26″ of the wall 22.
The mutual engagement of the pins 28 and of the cam tracks 26′, 26″ provides a vertical support for the slider assembly 18 and, during operation of the device, determines the path of movement of the assembly 18 and of the plug 8 between the opening position and the closing position.
In various embodiments, as in the one illustrated, the linear actuator 16 has a first end 16′ mounted oscillating about a stationary pivot 34 set underneath the bottom of the bowl, and a second end 16″ mounted oscillating on the slider assembly 18. In various preferred embodiments, as in the one illustrated, the second end of the actuator 16 is mounted oscillating on a pivot 36 that connects together the support 18A and the support 18B. The actuator 16 may be of any type known to the person skilled in the sector, for example a cylindrical actuator, a screw actuator, etc.
As illustrated in
It should be noted that it is likewise possible to envisage alternative embodiments in which the stationary pivot referred to above, on which one end of the actuator is mounted oscillating, is instead positioned above the bottom of the bowl. In this case, passage of the actuator from its extended configuration to its contracted configuration will bring about displacement of the plug 8 from its opening position to its closing position.
As has been said, the path followed by the plug 8 during operation attic actuator 16 is determined by co-operation of the slider assembly 18 and the cam tracks 26′, 26″ engaged thereby.
In various embodiments, as in the one illustrated (see
With reference to
In the light of the foregoing, the discharge device described herein is hence characterized by simple and compact means, which can be installed completely underneath the bottom of the bowl and are able to move the plug within a contained space and in the direct proximity of the bottom itself.
In various preferred embodiments, as in the one illustrated, a scraper element 38 is set underneath the bottom of the bowl in a position such that it slides over the surface of the plug when the latter is moved along the aforesaid horizontal rectilinear stretch, so as to exert an action of cleaning of the plug by scraping. This action is thus obtained simultaneously with the step of opening of the bowl and, as has been seen, exploits operation of the very actuator of the device that is designed to move the plug.
Once discharge of the bowl has been completed, the device 6 brings the plug 8 back into the closing position, displacing it along the same path that it followed to move into the opening position, but in the opposite direction.
Of course, without prejudice to the principle of the invention, the details of construction and the embodiments may vary even significantly with respect to what has been illustrated herein purely by way of non-limiting example, without thereby departing from the scope of the invention, as defined by the annexed claims. For instance, it is possible to envisage a stationary structure 22 comprising two walls each provided with the cam tracks 26′, 26″ or else having as a whole the two cam tracks, one per wall. These walls are arranged on the opposite sides of the slider assembly 18 and, together, support and guide it in the movements of opening and closing of the plug 8 described above. It should moreover be noted that the bowl described herein may also be a rotary bowl; in this case, the plug 8 is mounted on the slider assembly 18 via interposition of supporting means designed to enable the plug to turn together with the bowl when the plug is in the closing position.
Number | Date | Country | Kind |
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TO2013A000716 | Sep 2013 | IT | national |