A shelling machine

Abstract

The present invention discloses a sheller, comprising an upper handle, a lower handle, a push mechanism, an upper annular cutter, and a lower annular cutter. One end of the upper handle and one end of the lower handle are connected by a hinge or fixedly connected by an elastic material. The upper annular cutter and the lower annular cutter are fixed to the other ends of the upper handle and the lower handle, respectively. The push mechanism is fixed to the middle of the upper handle and the lower handle. When shelling, the object to be shelled is placed in the center of the upper annular cutter and the lower annular cutter. The handle drives the upper annular cutter and the lower annular cutter to move toward each other under symmetrical pressure to achieve circumcision of the peel or shell. At the same time, the push mechanism pushes the object to be shelled to move outward, and the peel is completely peeled off under the joint extrusion of the upper annular cutter, the lower annular cutter and the push mechanism. The present invention has a simple structure, is easy to operate, and is economical and practical.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, in particular to a sheller. Background Art

[0002] Many fruits and seeds in nature, such as lotus seeds, longans, and lychees, are covered with a tough outer shell or peel that typically needs to be removed before consumption. Currently, some machines can perform this removal in large quantities. Patent CN201020128253.4 discloses an integrated lotus seed shelling and peeling machine, which includes a housing, a drive device, a feed device, and a peeling device. The peeling device is housed within the housing, with a water outlet at the bottom. The feed device positions the lotus seeds and feeds them to the shelling device. The toothed protrusions on the shelling gear and the toothed protrusions on the outer ring of the shelling device push against each other, separating the lotus seeds into two lobes and peeling them, resulting in a simpler structure. Patent TW077102966 discloses automatic peeling machines for longan and lychees. It includes mechanisms for core insertion, skinning, meat removal, and core removal, and all parts are computer-controlled for fully automatic operation. The production volume is more than 20 times higher than manual labor, reducing costs and improving quality, which can help the canned food industry expand its market. CN200520075762.4 discloses a small lychee peeling machine, comprising a feed barrel, a knife wheel, a cutter, a friction wheel, and a fruit receiving box. The feed barrel has an inner cavity that allows the lychee raw materials to slide from the upper end to the lower end. Two knife wheels are symmetrically arranged on the left and right sides of the feed barrel. The cutters that cut the falling lychee peels are mounted on the edges of the knife wheels and rotate with the cutter wheels. The feed barrel is provided with a gap that allows the cutters to pass axially along the feed barrel. Two friction wheels that allow the lychee peels to be discarded are symmetrically arranged on the front and rear sides of the feed barrel and located at the lower end outlet of the feed barrel. A baffle is provided at the lower end outlet of the feed barrel to prevent the peeled lychee fruits from moving toward the feed barrel and falling downward. A fruit receiving box for storing the lychee fruits is located at the lower end outlet of the feed barrel. However, most of these peeling machines are only suitable for large-scale production, have complex structures, and are difficult to operate. Households often peel the lychees manually, which is both unhygienic and unsafe. There are very few shellers suitable for home use. Summary of the Invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a sheller. The sheller provided by the present invention is characterized in that it includes an upper handle, a lower handle, a pushing mechanism, an upper annular cutter, and a lower annular cutter. One end of the upper handle and one end of the lower handle are connected by a hinge or fixedly connected by an elastic material. The upper annular cutter and the lower annular cutter are respectively fixed to the other end of the upper handle and the lower handle. The pushing mechanism is fixed to the middle of the upper handle and the lower handle. The sheller is characterized in that the upper annular cutter and the lower annular cutter are composed of a stop plate and an annular blade. The shape of the stop plate is a part of a cylindrical surface or a pseudo-spherical surface. The annular blade is a flat blade or a serrated blade, and the blade height is 1-10 mm. The sheller is characterized in that the pushing mechanism includes an elastic component and a push rod. The elastic component is a symmetrically distributed curved elastic component. The axis of the push rod is coaxially installed with the symmetry axis of the elastic component. The axial distance between the top of the push rod and the elastic component is adjustable.

[0004] Compared with the prior art, the present invention has the following beneficial effects:

[0005] When peeling the shell, the upper and lower annular cutters cut the fruit shell to produce cracks. At the same time, the thrust provided by the push mechanism in the crack phase utilizes the stress concentration at the crack to tear the peel and further squeeze and peel the peel. Since the height of the annular blade is less than the thickness of the shell, it does not completely cut the peel like traditional knives, so it can ensure that the flesh is not cut. In addition, the elastic component of the push mechanism is a symmetrically distributed curved elastic component with a simple structure, which effectively improves the adaptability of the thrust and reduces the damage caused by the sheller to the shelled object. The length-adjustable push rod increases the application range of the sheller to a certain extent. In summary, the sheller proposed by the present invention has a simple structure, low cost, is lightweight and practical, and has great practical value and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural schematic diagram of the present invention;

[0007] Figure 2 This is a schematic diagram of the structure of the upper and lower annular cutters proposed by the present invention;

[0008] Figure 3 It is a structural diagram of the pushing mechanism; DETAILED DESCRIPTION

[0009] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more prominent and clearer, specific embodiments are described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are schematic, not physical, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, certain components may be omitted, enlarged, or reduced in size, and do not represent the dimensions of actual products. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0010] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. indicating orientations or positional relationships, they are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0011] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature.

[0012] Figure 1 This is a structural diagram of the present invention, a sheller, including an upper handle 1, a lower handle 2, a pushing mechanism 5, an upper annular cutter 3, and a lower annular cutter 4. The tail of the upper handle 1 and the tail of the lower handle 2 are connected by a hinge or fixedly connected by elastic material. The upper annular cutter 3 and the lower annular cutter 4 are respectively fixed to the other end of the upper handle 1 and the lower handle 2. The pushing mechanism 5 is fixed to the middle of the upper handle 1 and the lower handle 2. Figure 2 As shown, the upper annular cutter 3 and the lower annular cutter 4 are composed of a cutting plate 6 and an annular blade 7. Figure 3 As shown, the pushing mechanism 5 includes an elastic component 5-1, a push rod 5-2 and a connecting piece 5-3. The elastic component 5-1 is a symmetrically distributed curved elastic component, and a connecting piece 5-3 is provided on the top for connecting to the push rod 5-2. The axis of the push rod 5-2 is coaxially installed with the symmetry axis of the elastic component 5-1, and the axial distance between the push rod 5-2 and the connecting piece 5-3 on the elastic component 5-1 is adjustable.

[0013] Example 1: This example uses lotus seeds as the shelling target. Lotus seeds are generally 12-18 mm long and 8-14 mm in diameter. To address these characteristics, the cutting plate 6 of this example is cylindrical in shape, and the annular blade 7 is a flat blade with a blade height of 1 mm. This ensures that the blade only cuts through the leathery peel of the lotus seed without damaging the flesh, thus ensuring the integrity of the flesh.

[0014] Furthermore, the opening distance between the upper annular cutter 3 and the lower annular cutter 4 in this embodiment is 20 mm. The distance between the end face of the push rod 5-2 and the annular blade 7 is about 10 mm, which is suitable for shelling most lotus seeds.

[0015] Furthermore, the upper handle 1 and the lower handle 2 of this embodiment are both provided with handle covers made of plastic or rubber. The exquisite and comfortable handle design has a good hand feel and aesthetics, and the appropriately designed handle length can achieve a labor-saving effect.

[0016] Furthermore, the shelling device designed in this embodiment is used as follows: First, a lotus seed is centered between the upper and lower annular cutters 3 and 4, with the long axis of the lotus seed substantially parallel to the axis of the push rod 5-2. The handle drives the upper and lower annular cutters 3 and 4 in opposite directions under symmetrical pressure, thereby circumcising the lotus seed. Simultaneously, the pushing mechanism 5 pushes the lotus seed outward. The cracks caused by the circumcision are torn due to stress concentration, and the peel is completely peeled off under the combined pressure of the upper and lower annular cutters 3 and 4, and the pushing mechanism 5. The remaining peel on the lotus seed can be peeled off by gently squeezing it by hand.

[0017] Example 2: This example uses longan as the shelling target. Longan fruits are nearly spherical, with a diameter of 1.2-2.5 cm, typically yellowish-brown or sometimes grayish-yellow, with a slightly rough surface and occasionally small, slightly convex nodules. To address these characteristics of longan, the cutting plate 6 of this example is shaped like a portion of a simulated spherical surface, and the annular blade 7 is a serrated blade with a height of 1 mm. This ensures that the blade is used only to cut the longan shell without damaging the flesh, thus ensuring the integrity of the flesh.

[0018] Furthermore, the opening distance between the upper annular cutter 3 and the lower annular cutter 4 in this embodiment is 30 mm. The distance between the end face of the push rod 5-2 and the annular blade 7 is about 15 mm, which is suitable for shelling most longan fruits.

[0019] Furthermore, the upper handle 1 and the lower handle 2 of this embodiment are both provided with handle covers made of plastic or rubber. The exquisite and comfortable handle design has a good hand feel and aesthetics, and the appropriately designed handle length can achieve a labor-saving effect.

[0020] Furthermore, the specific use process of a sheller designed in this embodiment is as follows: first, a longan is placed in the center of the upper annular cutter 3 and the lower annular cutter 4. The handle drives the upper annular cutter 3 and the lower annular cutter 4 to move toward each other under symmetrical pressure to achieve the ring cutting of the longan shell. At the same time, the pushing mechanism 5 pushes the longan outward. Due to the stress concentration at the cracks produced by the ring cutting, the shell is torn and completely peeled off under the joint extrusion of the upper annular cutter 3, the lower annular cutter 4 and the pushing mechanism 5. The other part of the shell remaining on the longan can be peeled off by gently squeezing it by hand.

[0021] Finally, it should be noted that the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the claims of the present invention.

Claims

1. A sheller, characterized in that: It includes an upper handle, a lower handle, a pushing mechanism, an upper annular cutter, and a lower annular cutter. One end of the upper handle and one end of the lower handle are connected by a hinge or fixedly connected by an elastic material. The upper annular cutter and the lower annular cutter are respectively fixed to the other end of the upper handle and the lower handle. The pushing mechanism is fixed to the middle of the upper handle and the lower handle. The upper annular cutter and the lower annular cutter are composed of a stop cutting plate and an annular blade. The shape of the stop cutting plate is a part of a cylindrical surface or a simulated spherical surface. The annular blade is a flat blade or a toothed blade, and the blade height is 1-10 mm. The pushing mechanism includes an elastic component and a push rod. The elastic component is a symmetrically distributed curved elastic component. The axis of the push rod is coaxially installed with the symmetry axis of the elastic component, and the axial distance between the top of the push rod and the elastic component is adjustable.

Images