CN110140976A - Shelling device for Chinese chestnuts - Google Patents

Abstract

The invention discloses a chestnut shelling device, which comprises an extruding roller, which is arranged horizontally. The extruding roller has a plurality of convex ribs parallel to its axis; the rubbing roller is arranged parallel to the extruding roller Right below the roller, there are several elastic scrapers on the kneading roller; the cage grid is located under the kneading roller, and the cage grid has a curved grid, and the curved grid has holes for chestnuts to pass through. The axis of the grid coincides with the axis of the kneading roller. When the scraper is not under pressure, the radial distance between the curved grid and the kneading roller is smaller than the radial distance between the top of the scraper and the kneading roller; Cylinder, kneading roller, and cage grid are wrapped inside. The top of the shell is equipped with a feed hopper, and the bottom of the shell is equipped with a discharge hopper. There is a gap between the cage grid and the discharge hopper; the extrusion roller and kneading roller have the main force of rotation. By adopting the invention combined with extrusion method and kneading method for shelling, the chestnuts are fully stirred and the shelling effect is uniform.

Description

A shelling device for chestnuts

technical field

The invention relates to the field of nut shelling equipment, in particular to a chestnut shelling device.

Background technique

The main chestnut shelling methods on the market now include manual shelling, chemical shelling, baking shelling, energy shelling and mechanical shelling. However, the manual shelling method has high work intensity and is unhygienic; the chemical shelling method will affect the structural components of chestnuts; the baking shelling method is difficult to operate and is not easy to control; the energy shelling method is expensive, so these four methods are not suitable. Used by most processing companies. As a nut, chestnut has a hard shell and a large size. Chestnut is different from other nuts, such as peanuts, melon seeds, walnuts, etc. The shell is hard, and there is no joint seam on the surface. There is a gap between the shell and the chestnut kernel. The red coat that is tightly combined with the chestnut kernel. The shelling devices on the market often fail to achieve a very good shelling effect.

Contents of the invention

The problem to be solved by the present invention is to provide a shelling device for chestnuts, which is combined with extruding and rubbing methods for shelling, so that the chestnuts are fully stirred and the shelling effect is uniform.

In order to solve the above problems, the present invention provides a kind of shelling device for Chinese chestnuts. To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is:

A shelling device for chestnuts, comprising: an extruding roller arranged horizontally, with a plurality of convex ribs parallel to its own axis distributed on the exterior of the extruding roller; a kneading roller arranged parallel to the extruding roller Directly below, there are several flexible scrapers on the kneading roller; the cage grid is located under the kneading roller, the cage grid has a curved grid, and the curved grid has holes for chestnuts to pass through. The curved grid itself The axis coincides with the axis of the kneading roller itself. When the scraper is not under pressure, the radial distance between the curved grid and the kneading roller is smaller than the radial distance between the top of the scraper and the kneading roller; The roller and the cage are wrapped inside, the top of the shell is equipped with a feed hopper, the bottom of the shell is equipped with a discharge hopper, and there is a gap between the cage and the discharge hopper; the extrusion roller and the kneading roller have the driving force for rotation.

The beneficial effects of adopting the above-mentioned technical scheme are: the present application combines the extrusion method and the rubbing method. First, when the chestnut passes through the extrusion roller, the chestnut is stirred and impacted by the ribs on the extrusion roller, and the chestnut and the extrusion roller are agitated and hit. Friction, under the action of centrifugal force and friction force, the chestnut shell is cracked, and the chestnuts that have been preliminarily processed by the extrusion roller fall into the kneading roller, and are subjected to external force before the scraper and the cage grid are in contact, so as to realize the separation between the chestnut shell and the chestnut kernel. separate. The scraper acts as agitator to ensure that the chestnuts in all parts can be shelled, promote the separation of chestnut kernels and chestnut shells, and ensure the uniformity of shelling. The cage grid acts as a buffer, which can slow down the discharge speed of chestnuts from the kneading roller and increase the number of times the chestnuts are stirred by the scraper. The chestnut is fully subjected to the force of extrusion and friction of the scraper, and the chestnut shell is separated from the chestnut kernel after continuous collision; then the chestnut shell and chestnut kernel are discharged downward through the holes in the cage. The shell can facilitate the fixing of the extrusion roller and the kneading roller, providing a closed space for the roller to work, and at the same time can strengthen the overall structure, and can bear a large load to ensure the stable operation of the chestnut sheller. Overall, the labor intensity of the shelling work is reduced, and the production efficiency is improved.

As a further improvement of the present invention, the cage grid forms a semi-cylindrical shape longitudinally sectioned along its own axis, and the two axial ends of the curved grid are sealed by semicircular plates.

The beneficial effect of adopting the above-mentioned technical scheme is: the upward opening of the cage grid ensures that the chestnuts can almost be encircled by the cage grid for a certain period of time.

As a further improvement of the present invention, the curved grid has several straight ribs parallel to the axis of the kneading roller itself, and the curved grid also has several arc ribs, and the center of the arc ribs is located on the axis of the kneading roller itself. On the top, straight ribs and arc ribs are crossed and fixed to form several holes for chestnuts to pass through.

The beneficial effect of adopting the above technical solution is that the holes are realized by intersecting ribs, and the processing cost is low.

As a further improvement of the present invention, each scraper itself is curved, and the extension direction of the scraper away from the top of the kneading roller forms an obtuse angle with the rotation direction of the kneading roller.

The beneficial effect of adopting the above technical solution is that the curved scraper prevents itself from being broken due to excessive force during rotation, and the agitation of the stacked chestnuts is relatively smooth.

As a further improvement of the present invention, the scraper is an independent part, and the circumferential surface of the kneading roller is equipped with several radially protruding ribs, the scraper is assembled with the ribs by bolts, and the scraper is made of PP plastic.

The beneficial effect of adopting the above technical solution is that the independent scraper is easy to replace, the material of the scraper is PP, and the elastic performance of PP plastic meets the requirements and also meets the food machinery standard.

As a further improvement of the present invention, the kneading roller is coaxially equipped with a pulley, and the squeezing roller is connected with the pulley through a belt. The angular velocity of the kneading roller.

The beneficial effect of adopting the above-mentioned technical solution is: it can be driven by a rotating motor, reducing the cost of equipment, and the angular speed ratio between the extrusion roller and the kneading roller can be easily controlled through the size of the pulley, and the extrusion rollers rotating in the same direction The cylinder and the kneading roller are opposite to each other in the direction of the line speed, just the chestnut can be impacted and the shell breaking rate can be improved.

As a further improvement of the present invention, the casing also includes a shroud between the feed hopper and the discharge hopper, the discharge hopper and the shroud are hingedly assembled, the top of the feed hopper is equipped with a feed port, and the feed hopper is equipped with a feed port. The most important part is a longitudinally sectioned semi-cylindrical wrapping cover, and the axis corresponding to the circumferential surface of the wrapping cover coincides with the axis of the kneading roller itself.

The beneficial effect of adopting the above-mentioned technical solution is: the hinged discharge hopper can be opened when necessary, which is convenient for maintenance and inspection;

As a further improvement of the present invention, the bottom of the discharge hopper is provided with a discharge port whose extension length is parallel to the axis of the kneading roller itself, and the discharge hopper is provided with inclined plates extending obliquely upwards on both sides of the discharge port.

The beneficial effect of adopting the above technical solution is that the inclined plate is convenient to guide the separated chestnut kernels and chestnut shells to be discharged from the discharge port.

As a further improvement of the present invention, along the cross-section of the extrusion roller, the shape of a single rib is triangular, and when the scraper is not under pressure, the top of the scraper does not contact the rib.

The beneficial effect of adopting the above technical solution is that the shape of the ribs is convenient for cracking the shell of the chestnut.

As a further improvement of the present invention, the distance between the arc ribs and the kneading roller is longer than that between the straight ribs and the kneading roller.

The beneficial effect of adopting the above technical solution is: the arc ribs are relatively above the curved grille, which is equivalent to destroying the smoothness of the inner circle of the arc ribs, and the function of the scraper can further ensure the effect of chestnut turning and collision.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a perspective view of an embodiment of the present invention;

Fig. 2 is a schematic structural view of an embodiment of the present invention;

Fig. 3 is a perspective view of an embodiment of the present invention;

Fig. 4 is a perspective view of an embodiment of the present invention.

1-feeding hopper; 1a-feeding port; 1b-wrapping cover; 2-squeezing roller; 2a-convex; 3-kneading roller; 4-scraper; 5b-straight ribs; 6-discharge hopper; 6a-discharge port; 7-pulley; 8-belt; 9-coaming.

Detailed ways

Below in conjunction with specific embodiment, content of the present invention is described in further detail:

In order to achieve the purpose of the present invention, a kind of shelling device for chestnut comprises: extruding roller 2, is arranged horizontally, and the outer surface of extruding roller 2 is distributed with several ribs 2a parallel to its own axis; kneading roller The cylinder 3 is arranged in parallel directly under the extrusion roller 2, and the kneading roller 3 is equipped with several elastic scrapers 4; the cage grid 5 is arranged under the kneading roller 3, and the cage grid 5 has a curved grid , the curved grid has holes for chestnuts to pass through, and the axis of the curved grid coincides with the axis of the kneading roller 3 itself. When the scraper 4 is not under pressure, the radial distance between the curved grid and the kneading roller 3 is less than The radial distance between the top of the plate 4 and the kneading roller 3; the shell wraps the squeeze roller 2, the kneading roller 3, and the cage grid 5, and the top of the shell is equipped with a feed hopper 1, and the bottom of the shell is equipped with a discharge hopper 6 , There is a gap between the cage grid 5 and the hopper 6; the extrusion roller 2 and the kneading roller 3 have the main force of rotation.

The chestnuts that enter the feed hopper 1 can be pre-sawed, which is convenient for improving the subsequent shell breaking efficiency.

The beneficial effects of adopting the above-mentioned technical scheme are: the present application combines the extrusion method and the rubbing method. First, when the chestnut passes through the extrusion roller, the chestnut is stirred and impacted by the ribs on the extrusion roller, and the chestnut and the extrusion roller are agitated and hit. Friction, under the action of centrifugal force and friction force, the chestnut shell is cracked, and the chestnuts that have been preliminarily processed by the extrusion roller fall into the kneading roller, and are subjected to external force before the scraper and the cage grid are in contact, so as to realize the separation between the chestnut shell and the chestnut kernel. separate. The scraper acts as agitator to ensure that the chestnuts in all parts can be shelled, promote the separation of chestnut kernels and chestnut shells, and ensure the uniformity of shelling. The cage grid acts as a buffer, which can slow down the discharge speed of chestnuts from the kneading roller and increase the number of times the chestnuts are stirred by the scraper. The chestnut is fully subjected to the force of extrusion and friction of the scraper, and the chestnut shell is separated from the chestnut kernel after continuous collision; then the chestnut shell and chestnut kernel are discharged downward through the holes in the cage. The shell can facilitate the fixing of the extrusion roller and the kneading roller, providing a closed space for the roller to work, and at the same time can strengthen the overall structure, and can bear a large load to ensure the stable operation of the chestnut sheller. Overall, the labor intensity of the shelling work is reduced, and the production efficiency is improved.

In some other embodiments of the present invention, the cage grid 5 forms a semi-cylindrical shape longitudinally sectioned along its own axis, and the two axial ends of the curved grid are sealed by semicircular plates.

The beneficial effect of adopting the above-mentioned technical scheme is: the upward opening of the cage grid ensures that the chestnuts can almost be encircled by the cage grid for a certain period of time.

In other embodiments of the present invention, the curved grid is equipped with several straight ribs 5b parallel to the axis of the kneading roller 3 itself, and the curved grid is also equipped with several arc ribs 5a, and the center of the arc rib 5a is Located on the axis of the kneading roller 3 itself, the straight ribs 5b and arc ribs 5a are crossed and fixed to form several holes for chestnuts to pass through.

The beneficial effect of adopting the above technical solution is that the holes are realized by intersecting ribs, and the processing cost is low.

In other embodiments of the present invention, each scraper 4 itself is curved, and the extension direction of the scraper 4 away from the top of the kneading roller 3 forms an obtuse angle with the rotation direction of the kneading roller 3 .

The beneficial effect of adopting the above technical solution is that the curved scraper prevents itself from being broken due to excessive force during rotation, and the agitation of the stacked chestnuts is relatively smooth.

In other embodiments of the present invention, the scraper 4 is an independent part, and the circumferential surface of the kneading roller 3 is equipped with several radially protruding ribs, the scraper 4 is assembled with the ribs by bolts, and the scraper 4 The material is PP plastic.

According to actual usage conditions, the scraper 4 has various specifications with different sizes and different degrees of elasticity.

The beneficial effect of adopting the above technical solution is that the independent scraper is easy to replace, the material of the scraper is PP, and the elastic performance of PP plastic meets the requirements and also meets the food machinery standard.

In other embodiments of the present invention, the kneading roller 3 is coaxially equipped with a pulley 7, the squeeze roller 2 is connected with the pulley 7 through a belt 8, and the rotation direction of the squeeze roller 2 is the same as that of the kneading roller 3 , the rotational angular velocity of the extrusion roller 2 is greater than the angular velocity of the kneading roller 3 .

The extrusion roller 2 and the kneading roller 3 are driven by the same rotating motor. The vertical distance between the extruding roller 2 and the kneading roller 3 is adjustable, so as to adapt to chestnuts of different sizes.

When the rotational speed of the extrusion roller 2 is greater than 340r/min, the force on the chestnut increases greatly, causing the chestnut to be broken and the whole kernel rate to decrease. Therefore, the rotational speed of the extrusion roller 2 must be well controlled when the chestnut is shelled. When the extrusion roller 2 rotating speed was about 250r/min, the chestnut shell breaking work was stable, and the shell removal efficiency was better.

The beneficial effect of adopting the above-mentioned technical solution is: it can be driven by a rotating motor, reducing the cost of equipment, and the angular speed ratio between the extrusion roller and the kneading roller can be easily controlled through the size of the pulley, and the extrusion rollers rotating in the same direction The cylinder and the kneading roller are opposite to each other in the direction of the line speed, just the chestnut can be impacted and the shell breaking rate can be improved.

In some other embodiments of the present invention, the housing further includes a shroud 9 arranged between the feed hopper 1 and the outlet hopper 6, the outlet hopper 6 and the shroud 9 are hingedly assembled, and the top of the feed hopper 1 is provided with a feeding port 1a, the portion of the feed hopper 1 except the feed inlet 1a is a longitudinally sectioned semi-cylindrical wrapping cover 1b, and the axis corresponding to the circumferential surface of the wrapping cover 1b coincides with the axis of the kneading roller 3 itself.

The vertical direction of the feed opening 1a does not coincide with the corresponding axis of the wrapping cover 1b.

The beneficial effect of adopting the above-mentioned technical solution is: the hinged discharge hopper can be opened when necessary, which is convenient for maintenance and inspection;

In some other embodiments of the present invention, the bottom of the discharge hopper 6 is equipped with a discharge port 6a, the extension length of the discharge port 6a is parallel to the axis of the kneading roller 3 itself, and the discharge hopper 6 is equipped with inclined surfaces on both sides of the discharge port 6a. Slopes extending upwards.

Hidden coaming plate 9 among Fig. 3, hidden coaming plate 9, feeding hopper 1, discharging hopper 6 among Fig. 4.

The beneficial effect of adopting the above technical solution is that the inclined plate is convenient to guide the separated chestnut kernels and chestnut shells to be discharged from the discharge port.

In other embodiments of the present invention, along the cross-section of the extrusion roller 2, the shape of a single rib 2a is triangular, and when the scraper 4 is not under pressure, the top of the scraper 4 does not contact the rib 2a.

The beneficial effect of adopting the above technical solution is that the shape of the ribs is convenient for cracking the shell of the chestnut.

In some other embodiments of the present invention, the distance between the arc ribs 5a and the rubbing roller 3 is longer than the distance between the straight ribs 5b and the rubbing roller 3 .

The beneficial effect of adopting the above technical solution is: the arc ribs are relatively above the curved grille, which is equivalent to destroying the smoothness of the inner circle of the arc ribs, and the function of the scraper can further ensure the effect of chestnut turning and collision.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (10)

1. a kind of shelling device for chestnut, is characterized in that, comprises: Extrusion rollers are arranged horizontally, and the outer surface of the extrusion rollers is distributed with several convex ribs parallel to its own axis; The kneading roller is arranged in parallel directly below the extrusion roller, and the kneading roller is equipped with several elastic scrapers; The cage grid is arranged under the kneading roller, and the cage grid is equipped with a curved grid, and the curved grid is provided with holes for chestnuts to pass through, and the own axis of the curved grid coincides with the kneading roller itself axis, so When the scraper is not under pressure, the radial distance between the curved grid and the kneading roller is smaller than the radial distance between the top of the scraper and the kneading roller; The shell wraps the extrusion roller, the kneading roller, and the cage grid. The top of the shell is equipped with a feed hopper, and the bottom of the shell is equipped with a discharge hopper. There is a gap between the cage grid and the discharge hopper; Said extruding roller and kneading roller have rotational driving force. 2. A device for shelling chestnuts according to claim 1, wherein the cage grid forms a semi-cylindrical shape longitudinally sectioned along its own axis, and the two axial ends of the curved grid grid are formed by a semicircle. Form plate seal. 3. A device for shelling chestnuts according to claim 2, characterized in that: the curved grid has several straight ribs parallel to the axis of the kneading roller itself, and the curved grid also has several arc ribs, the center of the arc ribs is located on the axis of the kneading roller itself, and the straight ribs and arc ribs are crossed and fixed to form several holes for chestnuts to pass through. 4. A kind of shelling device for chestnut according to claim 1, characterized in that: each scraper itself is curved, and the extension direction of the scraper at the top of the kneading roller is opposite to that of the kneading roller. The direction of rotation is an obtuse angle. 5. A kind of shelling device for chestnut according to claim 4, characterized in that: the scraper is an independent part, and the circumferential surface of the kneading roller is equipped with several radially protruding ribs, The scraper is assembled with bolts and ribs, and the scraper is made of PP plastic. 6. A kind of chestnut shelling device according to claim 1, characterized in that: said kneading roller is coaxially equipped with pulleys, said squeezing roller is connected with belt pulleys through a belt, and said squeezing rollers are connected with pulleys. The rotation direction of the pressing roller and the kneading roller is the same, and the rotational angular velocity of the pressing roller is greater than that of the kneading roller. 7. A device for shelling chestnuts according to claim 1, characterized in that: the housing further comprises a shroud arranged between the feed hopper and the discharge hopper, and the discharge hopper and the shroud are hingedly assembled , the top of the feed hopper is equipped with a feed inlet, the position of the feed hopper except the feed inlet is a longitudinally sectioned semi-cylindrical wrapping cover, the axis corresponding to the circumferential surface of the wrapping cover and the kneading roller self-aligned axis. 8. A kind of shelling device for chestnut according to claim 1, characterized in that: the bottom of the discharge hopper is provided with a discharge port, and the extension length of the discharge port is parallel to the axis of the kneading roller. The discharge hopper is equipped with inclined plates extending obliquely upwards on both sides of the discharge opening. 9. A chestnut shelling device according to claim 1, characterized in that: along the cross-section of the extrusion roller, the shape of a single rib is triangular, and when the scraper is not under pressure, the The top of the scraper is not in contact with the rib. 10 . The device for shelling chestnuts according to claim 3 , wherein the distance between the arc ribs and the kneading roller is longer than the distance between the straight ribs and the kneading roller. 11 .