Cashew nut shell breaking machine

Abstract

A machine (10) for cracking cashew nut shells, comprising: a hopper heater (11) that stores the cashew nut shell inside and constantly heats it through motorized rotation. The motorized rotation heats the tray inside the hopper heater to distribute the heat evenly; a fixed blade (18) rigidly positioned vertically at the bottom of the hopper heater; a movable blade (19) connected via a connecting rod to a motorized cam. This cam converts the motor's rotary motion into a linear, low-vibration horizontal movement of the blade; a spring (16) arranged parallel to the connecting rod for returning the movable blade to the starting position; a blower (20) which removes the smaller particles from the shell breaking area; A nut separator (22) is positioned horizontally inclined at the bottom of the blower area and sorts the nuts and shell residues using several holes. A removable tray (21) collects the nuts at the bottom by gravity.

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of agricultural machinery and related tools. More specifically, the present invention relates to a cashew nut extraction machine that reduces the manual effort and time required to remove nuts from their shells. BACKGROUND

[0002] Traditional cashew cracking is a labor-intensive process that can consume significant time for cracking, cleaning, extraction, and so on. While some heavy-duty machinery is available on the market, it is expensive and not suitable for all applications. The traditional method of firing, manual cracking, and so on can harm workers' health due to environmental pollution. There is no portable cashew nut extraction machine on the market that can instantly remove the nuts from their shells. Manual shell cracking using conventional tools carries a high risk of accidents.

[0003] Therefore, there is a need for a cashew nut extraction machine that reduces the manual effort and time required to remove the nuts from the shell. The present invention effectively overcomes the above-mentioned problems, limitations, and disadvantages. OBJECT OF THE INVENTION

[0004] The main objective of the present invention is to provide a cashew cracking machine at an affordable price and with superior quality.

[0005] Another object of the present invention is to provide heating devices for instantly releasing the nuts from the cashew shell.

[0006] Another object of the present invention is to introduce a machine with environmentally friendly features to reduce environmental pollution.

[0007] Another object of the present invention is to provide a step-by-step classification to reduce the time required and improve the quality of extraction.

[0008] Another object of the present invention is to provide a portable cashew nut extraction apparatus for small and medium industries / areas.

[0009] These and other objects and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings. SUMMARY

[0010] The various embodiments of the present invention provide a cashew shell cracking machine that reduces the manual effort and time required to separate the nuts from the cashew shell. The cashew shell cracking machine consists of a power source and a heating hopper. The heating hopper stores the cashew shells inside and constantly heats them through motorized rotation. The machine has a fixed knife and a movable knife. The fixed knife is positioned vertically at the bottom of the heating hopper. The movable knife is connected to a motorized cam via a connecting rod. The motorized cam converts the motor rotation into a linear, horizontal movement of the knife with low vibration. The spring arranged parallel to the connecting rod returns the movable knife to its original position. The fan removes smaller particles from the cracking area.The nut separator sorts the nuts and shell residue using multiple holes. The removable tray collects the nuts in the base area by gravity.

[0011] The temperature of the hopper heater can be adjusted by the user via the rotary knob. The hopper has openings through which the cashew shell is gradually released downwards by gravity. The blades break the shell through constant pressure transmitted via the motorized cam. The spring actuates the movable blade for the next work cycle by creating a gap between the blades at regular intervals. The housing houses the moving parts internally to prevent accidents and reduce waste scattering.

[0012] These and other aspects of the embodiments described herein will become more fully understood in conjunction with the following description and the accompanying drawings. While the following descriptions show preferred embodiments and numerous specific details, they are illustrative and not limiting. Numerous changes and modifications are possible within the scope of the embodiments described herein without departing from the spirit and scope of the invention, and the embodiments described herein are intended to include all such modifications. BRIEF DESCRIPTION OF THE DRAWING

[0013] The further objects, features and advantages will become apparent to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings. Fig. shows the isometric view of the cashew nut shell crushing machine according to an embodiment of the present invention.

[0014] The specific features of the present invention are shown in some drawings but not in others. This is for clarity only, since each feature according to the present invention can be combined with all or some of the other features. DETAILED DESCRIPTION

[0015] The various embodiments, as well as further developments and features, are explained in the following detailed description with reference to non-limiting details. The depiction of processing techniques for known components is omitted in order not to unnecessarily obscure the embodiments described herein. The examples used herein are intended to facilitate understanding of the possible applications of the embodiments described herein and to enable those skilled in the art to implement the embodiments described herein. The examples should therefore not be construed as limiting the scope of application of the embodiments described herein.

[0016] The various embodiments of the present invention describe a cashew shell breaking machine (10) that reduces the manual effort and time required to separate the nuts from the cashew shell. The cashew shell breaking machine comprises a power source and a heating hopper. The heating hopper (11) is configured to store the cashew shell inside and constantly heat it through motorized rotation. The motorized rotation heats the nutshell inside the heating hopper and distributes the heat evenly. The machine (10) also comprises a fixed and a movable knife. The fixed knife (18) is rigidly positioned vertically at the bottom of the heating hopper. The movable knife (19) is connected to a motorized cam via a connecting rod. The motorized cam (15) converts the motor rotational movement into a linear movement of the knife in a horizontal direction with low vibration.

[0017] Fig.shows an isometric view of the cashew nut shell breaking machine according to an embodiment of the present invention. The spring is arranged parallel to the connecting rod and returns the movable blade to its original position. The blower (20) removes smaller particles from the shell breaking area. The nut separator is positioned horizontally and inclined at the bottom of the blower area. It sorts nuts and shell residues using multiple holes. The removable tray (21) collects the nuts in the bottom area due to gravity.

[0018] The cashew shell breaking machine (10) is equipped with a motor supported by a base frame. The motor is connected to a cam element that converts the rotary motion into a reactive motion. The hopper or hopper heater (11) is located at the top and allows the cashew nuts to enter the machine. Inside the hopper, a heating system (copper coil) heats the cashew nuts to soften the shells just before shelling. A fixed blade (90 degrees) is located below the hopper, while a movable blade (19) is arranged at an angle. The movable blade is driven by the cam element and exerts pressure on the cashew nuts, causing the shell to crack.

[0019] The temperature of the hopper heater can be adjusted by the user via a rotary knob. The hopper has openings through which the cashew shells are gradually released downwards by gravity. The gap between the blades breaks the shell through constant pressure transmitted via the motorized cam. The spring (16) actuates the movable blade for the next work cycle by creating a gap between the blades at regular intervals. The housing houses the moving parts internally to prevent accidents and reduce waste scattering.

[0020] The cam tool is driven by the motor. The rotation of the cam pushes the movable blade back and forth, crushing the cashew nut sandwiched between the fixed and movable blades. The spring ensures that the movable blade returns to its original position after each stroke, enabling continuous operation. Once the cashew shell is cracked, the processed cashew and shell pieces fall into the collection tray. The blower system (20) separates the shell waste from the edible cashew nuts, ensuring efficient processing. The base frame supports all components and ensures stability and vibration control.

[0021] The motor is centrally adjusted to ensure proper alignment. The cam unit is precisely aligned with the movable blade to ensure successful shell cracking. The spring used in the cutting tool is an open-wound coil spring with a length of 50 mm and a diameter of 30 mm. The spring (16) is located between the movable blade and the base frame to ensure that the blade returns to its original position after cutting.

[0022] The operation of the cashew nut shell breaking machine begins with the electrical control of the motor. The machine requires an electrical control source, which is provided by connecting the motor control line to a terminal. Once controlled, the motor rotates the cam unit, which converts the rotary motion into a reactive motion. The cashew nuts are poured into the container, which feeds them to the cutting tool. Inside the container, a heating system (copper coil) heats the cashew nuts to soften their shells just before shelling. The fixed edge is arranged at a 90-degree angle, while the movable edge (19) is inclined. The cam mechanism causes the movable edge to vibrate, creating a cutting and crushing effect on the cashew nuts. As a cashew nut enters the cutting area, the vibrating motion of the movable edge presses it against the fixed edge.This causes the shell to break without damaging the inside of the edible nuts.

[0023] The broken shells and the edible cashews fall into the collecting tray, where they can be easily separated. The blower system extracts the shell residue, preserving the edible nuts. The finished product can be removed from the removable tray. The nut separator sorts the nuts and shells using holes.

[0024] The machine is electrically operated. The hopper heater stores the cashew nut shells and heats them continuously through motorized rotation. The motorized rotation heats the nut shells inside the heating hopper and distributes the heat evenly. The fixed knife (18) can be rigidly positioned vertically at the bottom of the heating hopper. The motorized cam of the movable knife converts the rotary motion of the motor into a linear, horizontal movement of the knife, which is accompanied by low vibration. The spring arranged parallel to the connecting rod returns the movable knife to its original position. The fan removes the smaller particles from the shell-breaking area. The nut separator sorts the nuts and shell residue using several holes. The removable tray collects the nuts in the bottom area due to gravity.

[0025] The examples of the present invention described above are for illustrative purposes only. Although the present invention has been described using a specific example, numerous modifications are possible without substantially departing from the teachings and advantages of the subject matter described herein. Further substitutions, modifications, and changes are possible without departing from the spirit of the present solution. All features disclosed in this description (including the appended claims, the abstract, and the drawings) and / or all steps of a method or process disclosed therein may be combined in any way, except for combinations in which at least some of these features and / or steps are mutually exclusive.

[0026] Although the embodiments described herein are described with reference to various specific embodiments, it will be apparent to those skilled in the art that modifications to the embodiments described herein will be readily apparent. List of reference symbols: 10 Cashew nut shell breaking machine 11 Funnel heating 12 Engine 13 housings 14 Cam engine 15 cam 16 spring 17 Connecting rod 18 Fixed blade 19 Movable blade 20 blowers 21 bowl 22 nut separators 23 bases 24 donors.

Claims

[1] A machine (10) for cracking cashew nut shells, comprising: a hopper heater (11) that stores the cashew nut shell inside and constantly heats it through motorized rotation. The motorized rotation heats the tray inside the hopper heater to distribute the heat evenly; a fixed blade (18) rigidly positioned vertically at the bottom of the hopper heater; a movable blade (19) connected via a connecting rod to a motorized cam. This cam converts the motor's rotary motion into a linear, low-vibration horizontal movement of the blade; a spring (16) arranged parallel to the connecting rod for returning the movable blade to the starting position; a blower (20) which removes the smaller particles from the shell breaking area; A nut separator (22) is positioned horizontally inclined at the bottom of the blower area and sorts the nuts and shell residues using several holes. A removable tray (21) collects the nuts at the bottom by gravity. [2] Cashew nut shell breaking machine according to claim 1, wherein the machine (10) is operated by a power source. [3] Cashew nut shell breaking machine according to claim 1, wherein the temperature of the hopper heater can be controlled by the user via a rotary knob. [4] Cashew nut shell breaking machine according to claim 1, wherein the hopper has holes through which the cashew nut shell is gradually discharged downward by gravity. [5] Cashew nut shell breaking machine according to claim 1, wherein the contact between the blades breaks the shell by constant pressure transmitted via the motorized cam. [6] Cashew nut shell breaking machine according to claim 1, wherein the spring (16) drives the movable blade to the next working cycle by regularly creating a gap between the blades. [7] Cashew nut shell breaking machine according to claim 1, wherein the casing (13) accommodates the moving parts inside to prevent accidents and reduce waste scattering.

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