CN209882991U - Chestnut shucker - Google Patents

Abstract

The utility model discloses a chestnut sheller, which comprises a bracket part, a positioning mechanism, a driving mechanism, a movement mechanism and a cutter assembly (24); the support part is a framework of the chestnut sheller, a positioning mechanism is arranged on the framework, the chestnuts are fixed in a determined spatial direction and then are rotated under the action of a driving mechanism, the driving mechanism simultaneously drives the moving mechanism and a cutter assembly (24) to linearly move, so that corresponding components of the cutter assembly (24) generate synthetic spiral cutting and peeling motion at a determined depth on the surfaces of the chestnuts, a spiral cut is firstly cut on the shells of the chestnuts, the whole shells form a narrow spiral shape, and then the shells are cut off in a spiral shape by a cutter (29), so that complete chestnut kernels are obtained.

Description

A chestnut sheller

technical field

The utility model relates to a daily necessities, in particular to a chestnut sheller.

Background technique

Chestnuts are plant fruits that people often eat in their lives, but in general families, it is a very difficult job to peel chestnuts. People basically do the shelling work of chestnuts by hand. Some existing peeling tools are not only slow, but also And it is easy to break the chestnut kernels.

Utility model content

The purpose of the utility model is to provide a chestnut sheller with simple structure, convenient operation and no damage to nuts.

The purpose of this utility model is to realize through the following technical solutions:

A chestnut sheller of the present utility model, as shown in Figures 1 and 2, includes a bracket part, a positioning mechanism, a drive mechanism, a motion mechanism and a cutter assembly 24; the bracket part is the skeleton of the chestnut sheller, on which is installed The positioning mechanism, after the chestnut is fixed in a certain spatial orientation, the chestnut produces rotational motion under the action of the driving mechanism, and the driving mechanism simultaneously drives the motion mechanism and the cutter assembly 24 to generate linear motion, so that the corresponding components of the cutter assembly 24 are on the surface of the chestnut. A synthetic helical cutting motion is produced at the determined depth.

The bracket part includes a base 1, a left vertical plate 2, a right vertical plate 3, and an elongated hole 4. The base 1 is a rectangular flat plate with supports at both ends, and the left vertical plate 2 and the right vertical plate 3 are fixed symmetrically on the upper surface. A long hole 4 is laterally opened in the middle of the rectangular plate; the upper and lower parts of the left vertical plate 2 and the right vertical plate 3 have corresponding circular holes, which are connected to the corresponding components of the positioning mechanism and the driving mechanism.

The positioning mechanism includes a nut 5, a spring 6, a fixed cylinder 7, an ejector rod 8, a convex ring 9, an ejector pin 10, a positioning needle 11, a positioning block 12, a positioning spring 13, a turntable 15, and a shaft 16;

A fixing cylinder 7 is fixedly installed in the round hole at the upper end of the left vertical plate 2, a ejector rod 8 is installed in the fixing cylinder 7, and an ejector pin 10 is installed on the end face of the protruding end of the ejector rod 8;

The left end of the fixing cylinder 7 is installed with the nut 5, the interior of the fixing cylinder 7 is made into a stepped inner hole, after the ejector rod 8 is loaded into the fixing cylinder 7 from the left end, the left end of the spring 6 abuts on the nut 5, and the right end pushes the ejector rod. 8. The flange of the tail end is pressed on the step of the fixing cylinder 7, and the preload of the spring 6 can be changed by adjusting the nut 5.

The ejector rod 8 and the fixing cylinder 7 are installed with a small gap, and a convex ring 9 is installed on the left end of the ejector rod 8 .

The turntable 15 is installed in the round hole at the upper end of the right vertical plate 3 through the rotating shaft 16 . The turntable 15 has three long grooves with a T-shaped cross section symmetrically, and a positioning block 12 is embedded in each long groove. Pressed into the bottom of the groove, the positioning block 12 can slide along the long groove and can be held at any position, and the positioning block 12 is equipped with a positioning needle 11 .

The driving mechanism includes a ring gear 14, a handle 17, an intermediate gear 18, a driving gear 19, and a lead screw 20. The ring gear 14 is mounted on the outer circle of the turntable 15, and the lead screw 20 is mounted on the left vertical plate 2 and the right vertical plate. 3. In the circular hole in the lower part, when the handle 17 rotates, the rotary shaft 16 drives the turntable 15 and the ring gear 14 to rotate, and the intermediate gear 18 and the drive gear 19 drive the lead screw 20 to rotate to drive the components of the tool assembly to move.

The motion mechanism includes a slider 21, a cylinder 22, a push rod 23, and a compression spring 25,

The slider 21 has a protrusion at the bottom and a threaded hole in the middle. After the threaded hole is connected with the lead screw 20, the bottom protrusion is embedded in the long hole 4 of the base 1, and the bottom protrusion and the long hole 4 are in clearance fit. When the lead screw drives the slider 21 to move, the bottom protrusion slides along the long hole 4, the cylinder 22 is fixed on the top of the slider, the push rod 23 is installed inside the cylinder 22, and the compression spring 25 is installed at the bottom of the cylinder 22. Make the push rod 23 stick out from the upper end of the cylinder 22;

The cutter assembly 24 includes a sliding blade 26, a positioning cylinder 27, an adjustment screw 28, a cutter 29, and a paring cutter 30;

The positioning cylinder 27 is sleeved on the upper end of the push rod 23, and is fixed by the adjusting screw 28. The upper end of the positioning cylinder 27 is fixedly installed with a sliding sheet 26. The sliding sheet 26 is a spherical-shaped sheet with a circular hole on it, and the cutter 29 is installed on the push rod 23. The top rear knife tip protrudes from the round hole, the direction of the knife edge is perpendicular to the horizontal movement direction of the push rod 23, the paring knife 30 is installed on the top of the push rod 23 and is located 2-3mm behind the cutting knife 29, and the direction of the knife edge is parallel to the The horizontal movement direction of the push rod 23 is slightly curved against the direction of rotation of the chestnut.

The side of the positioning cylinder 27 is provided with a long hole, and the relative position of the positioning cylinder 27 on the push rod 23 is adjusted by adjusting the screw 28 , thereby adjusting the length of the blade tip of the cutter 29 protruding from the sliding blade 26 .

It can be seen from the technical solutions provided by the present utility model that the beneficial effect of the chestnut shelling machine described in the present utility model is that firstly, the chestnut shell is cut into a spiral incision, then the spiral shell is cut off, and then the shell is taken out. The complete chestnut kernel has simple structure and convenient operation, and is suitable for use in the majority of families.

Description of drawings

FIG. 1 is a schematic structural diagram of a chestnut sheller of the present invention.

Fig. 2 is a schematic top view of a bracket part of a chestnut sheller of the present invention.

FIG. 3 is a schematic structural diagram of a turntable of a chestnut sheller of the present invention.

4 is a schematic diagram of a slider of a chestnut sheller of the present invention.

Fig. 5 is a schematic diagram of a chestnut sheller cutter assembly and its installation relationship according to the present invention.

FIG. 6 is a schematic diagram of the cross-sectional view taken along the line A-A in FIG. 5 of a chestnut sheller of the present invention.

7 is a schematic structural diagram of a positioning cylinder of a chestnut sheller of the present invention.

In the picture: 1, base, 2, left vertical plate, 3, right vertical plate, 4, long hole, 5, nut, 6, spring, 7, fixed cylinder, 8, ejector rod, 9, convex ring, 10, Thimble, 11, locating pin, 12, locating block, 13, locating spring, 14, ring gear, 15, turntable, 16, shaft, 17, handle, 18, intermediate gear, 19, drive gear, 20, lead screw, 21 , Slider, 22, Cylinder, 23, Push Rod, 24, Tool Assembly, 25, Compression Spring, 26, Slider, 27, Push Rod, 28, Adjusting Screw, 29, Cutter, 30, Peeling Knife .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

A chestnut shelling machine, as shown in Figure 1 and Figure 2, includes a bracket part, a positioning mechanism, a driving mechanism, a motion mechanism and a cutter assembly 24; the bracket part is the skeleton of the chestnut sheller, on which a positioning mechanism is installed to After the chestnut is fixed in a definite spatial orientation, the chestnut generates rotational motion under the action of the driving mechanism, and the driving mechanism simultaneously drives the motion mechanism and the cutter assembly 24 to generate linear motion, so that the corresponding components of the cutter assembly 24 are at the depth determined by the surface of the chestnut. Generates a synthetic helical cutting motion.

The requirement for the bracket part is that it is relatively stable and can fix other required mechanisms on it. The bracket part includes a base 1, a left vertical plate 2, a right vertical plate 3, and a long hole 4. The base 1 is supported at both ends. A rectangular flat plate, the left vertical plate 2 and the right vertical plate 3 are fixedly installed symmetrically on the upper surface, and a long hole 4 is laterally opened in the middle of the rectangular flat plate; the upper and lower parts of the left vertical plate 2 and the right vertical plate 3 have corresponding round holes. , and the corresponding components of the positioning mechanism and the driving mechanism are connected.

The positioning mechanism includes a nut 5, a spring 6, a fixed cylinder 7, an ejector rod 8, a convex ring 9, a thimble 10, a positioning needle 11, a positioning block 12, a positioning spring 13, a turntable 15, and a rotating shaft 16; The chestnuts are fixed in a certain orientation. In this design, the fixing cylinder 7 is fixedly installed in the round hole at the upper end of the left vertical plate 2, the ejector rod 8 is installed in the fixing cylinder 7, and the ejector pin 10 is installed on the extended end face of the ejector rod 8; The nut 5 is installed on the left end of the cylinder 7, and the interior of the fixing cylinder 7 is made into a stepped inner hole. After the mandrel 8 is loaded into the fixing cylinder 7 from the left end, the left end of the spring 6 abuts on the nut 5, and the right end protrudes from the tail end of the mandrel 8. The edge is pressed against the steps of the fixed cylinder 7 .

The ejector rod 8 is placed on the chestnut through the ejector pin 10, and the magnitude of its force needs to be adjusted according to the size of the chestnut and the hardness of the outer shell. Rotating the adjusting nut 5 changes the preload of the spring 6, that is, the ejector rod 8 can be adjusted to a pair. The magnitude of the force of the chestnut, the ejector rod 8 and the fixed cylinder 7 are installed with a small gap. A convex ring 9 is installed on the left end of the ejector rod 8 to facilitate operation.

The turntable 15 is installed in the round hole at the upper end of the right vertical plate 3 through the rotating shaft 16 . The turntable 15 has three long grooves with a T-shaped cross section symmetrically, and a positioning block 12 is embedded in each long groove. Press into the bottom of the groove, the positioning block 12 can slide along the long groove and can be held at any position, and the positioning block 12 is equipped with a positioning needle 11; according to the size and shape of the chestnut, the positioning block 12 can be moved by hand to make the positioning block 12 The whole or part is in reliable contact with the chestnut to ensure the positioning of the chestnut. After the positioning block 12 is moved to a certain position, under the force of the positioning spring 13, a large friction force is generated with the groove bottom of the T-shaped long groove of the turntable 15. keep it in that position.

The driving mechanism includes a ring gear 14, a handle 17, an intermediate gear 18, a driving gear 19, and a lead screw 20. The ring gear 14 is installed on the outer circle of the turntable 15, and the lead screw 20 is installed on the lower part of the left vertical plate 2 and the right vertical plate 3. Inside the circular hole, when the handle 17 rotates, the rotary shaft 16 drives the turntable 15 and the ring gear 14 to rotate, and the intermediate gear 18 and the drive gear 19 drive the lead screw 20 to rotate to drive the components of the tool assembly to move.

The movement mechanism includes a slider 21, a cylinder 22, a push rod 23, and a compression spring 25. The slider 21 has a protrusion at the bottom and a threaded hole in the middle. After the threaded hole is connected with the lead screw 20, the bottom protrusion is embedded in the base 1. In the long hole 4, the bottom protrusion and the long hole 4 are in clearance fit. When the lead screw drives the slider 21 to move, the bottom protrusion slides along the long hole 4, and the cylinder 22 is fixed on the top of the slider. A push rod 23 is installed inside 22 , and a compression spring 25 is installed at the bottom of the cylinder 22 , so that the push rod 23 protrudes from the upper end of the cylinder 22 .

The tool assembly 24 includes a sliding blade 26, a positioning cylinder 27, an adjustment screw 28, a cutter 29, and a paring knife 30;

The positioning cylinder 27 is sleeved on the upper end of the push rod 23, and is fixed by the adjusting screw 28. The upper end of the positioning cylinder 27 is fixedly installed with a sliding sheet 26. The sliding sheet 26 is a spherical-shaped sheet with a circular hole on it, and the cutter 29 is installed on the push rod 23. The top rear knife tip protrudes from the round hole, the direction of the knife edge is perpendicular to the moving direction of the push rod 23, the paring knife 30 is installed on the top of the push rod 23 and located 2-3mm behind the cutter 29, and the direction of the knife edge is parallel to the push rod The movement direction of 23 is slightly bent against the rotation direction of the chestnut to form a cutting state of the chestnut shell.

The side of the positioning cylinder 27 is provided with a long hole, and the relative position of the positioning cylinder 27 on the push rod 23 is adjusted by adjusting the screw 28 , thereby adjusting the length of the blade tip of the cutter 29 protruding from the sliding blade 26 . The adjustment method is to loosen the adjustment screw 28 fixed on the push rod 23 and then move the positioning cylinder 27 up and down, so that the length of the tip of the cutter 24 exposed on the upper end of the slide 26 is exactly equal to the thickness of the chestnut shell, and then the adjustment screw 28 Tighten to fix the positioning cylinder 27.

The function of the sliding blade 26 is to ensure that the knife assembly slides on the surface of the chestnut shell even if the curvature of the chestnut shell changes greatly, and at the same time, it cooperates with the cutting knife 24 to cut the chestnut shell into a spiral shape without damaging it. Nuts, the chestnut shell of the narrower spiral shape is easily peeled off by the cutter 29 along the spiral direction, otherwise the shell of the chestnut is hard, and the cutter 29 acts on the chestnut with a large force, making it difficult to locate the chestnut in the positioning mechanism, Can't finish shelling chestnuts.

A working process of a chestnut sheller: first adjust the preload force of the spring 6 and the distribution of the positioning block 12 according to the size of the chestnut, and the length of the tip of the blade 26 exposed by the cutting knife 24 is equal to the thickness of the chestnut shell, and then to the chestnut shell. Pull the convex ring 9 outside, let the positioning needle 11 pierce the top of the chestnut shell, the thimble 10 pierce the tail end of the chestnut shell, shake the handle 17, drive the turntable 15 and the ring gear 14 to rotate through the rotating shaft 16, and pass the intermediate gear 18 and the drive gear. 19 drives the lead screw 20 to rotate, and the lead screw 20 drives the slider 21 to move linearly, so that the cutter assembly generates a synthetic spiral motion on the shell of the chestnut. The cutting knife 29 is 2-3 mm behind, and the paring knife 30 is immediately behind to peel off the spiral shell.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (9)

1. A chestnut sheller is characterized by comprising a bracket part, a positioning mechanism, a driving mechanism, a moving mechanism and a cutter assembly (24); the support part is a framework of the chestnut sheller, a positioning mechanism is arranged on the framework, the chestnuts are fixed in a determined spatial direction and then are rotated under the action of a driving mechanism, and the driving mechanism simultaneously drives the moving mechanism and the cutter assembly (24) to move linearly, so that corresponding components of the cutter assembly (24) generate synthetic spiral cutting and peeling movement at a determined depth on the surface of the chestnuts; the support part comprises a base (1), a left vertical plate (2), a right vertical plate (3) and a long hole (4), the base (1) is a rectangular flat plate with supports at two ends, the left vertical plate (2) and the right vertical plate (3) are fixedly arranged on the upper surface in a bilateral symmetry mode, and the long hole (4) is transversely formed in the middle of the rectangular flat plate; the upper parts and the lower parts of the left vertical plate (2) and the right vertical plate (3) are respectively provided with corresponding round holes which are connected with corresponding components of the positioning mechanism and the driving mechanism; the positioning mechanism comprises a screw cap (5), a spring (6), a fixed cylinder (7), a push rod (8), a convex ring (9), a thimble (10), a positioning needle (11), a positioning block (12), a positioning spring (13), a rotary table (15) and a rotating shaft (16); a fixed cylinder (7) is fixedly arranged in a round hole at the upper end of the left vertical plate (2), an ejector rod (8) is arranged in the fixed cylinder (7), and an ejector pin (10) is arranged on the end face of the extending end of the ejector rod (8); a rotary table (15) is installed in a circular hole in the upper end of the right vertical plate (3) through a rotating shaft (16), three long grooves with T-shaped sections are symmetrically formed in the rotary table (15), a positioning block (12) is embedded into each long groove, the positioning block (12) is pressed into the groove bottom through a positioning spring (13), the positioning block (12) can slide along the long grooves and can be kept at any position, and a positioning needle (11) is installed on the positioning block (12).

2. The chestnut sheller according to claim 1, characterized in that the nut (5) is installed at the left end of the fixed cylinder (7), a stepped inner hole is formed inside the fixed cylinder (7), after the ejector rod (8) is installed into the fixed cylinder (7) from the left end, the left end of the spring (6) abuts against the nut (5), the right end presses the flange at the tail end of the ejector rod (8) on the step of the fixed cylinder (7), and the pretightening force of the spring (6) can be changed by adjusting the nut (5).

3. The chestnut sheller according to claim 1, characterized in that the top bar (8) and the fixed cylinder (7) are arranged in a close clearance fit, and the left end of the top bar (8) is provided with a convex ring (9).

4. The chestnut peeling machine according to claim 1, characterized in that the driving mechanism comprises a gear ring (14), a handle (17), an intermediate gear (18), a driving gear (19) and a lead screw (20), wherein the gear ring (14) is installed on the excircle of the rotary plate (15), the lead screw (20) is installed in the circular holes at the lower parts of the left vertical plate (2) and the right vertical plate (3), when the handle (17) rotates, the rotary plate (15) and the gear ring (14) are driven to rotate through the rotating shaft (16), and the lead screw (20) is driven to rotate through the intermediate gear (18) and the driving gear (19) so as to drive the components of the cutter assembly to move.

5. The chestnut peeling machine according to claim 1, characterized in that the movement mechanism comprises a sliding block (21), a cylinder (22), a push rod (23) and a compression spring (25), wherein the bottom of the sliding block (21) is provided with a protrusion, the middle part of the sliding block is provided with a threaded hole, the bottom protrusion is embedded into a long hole (4) of the base (1) after the threaded hole is connected with the lead screw (20), the bottom protrusion is in clearance fit with the long hole (4), when the lead screw drives the sliding block (21) to move, the bottom protrusion slides along the long hole (4), the cylinder (22) is fixed at the top of the sliding block, the push rod (23) is arranged inside the cylinder (22), and the compression spring (25) is arranged at the bottom of the cylinder (22) so that the push rod (23) protrudes out of the upper end of the cylinder.

6. The chestnut peeling machine according to claim 1, characterized in that the knife assembly (24) comprises a slide (26), a positioning cylinder (27), an adjusting screw (28), a cutting knife (29), a peeling knife (30); the positioning cylinder (27) is sleeved at the upper end of the push rod (23) and fixed by an adjusting screw (28), a sliding sheet (26) is fixedly installed at the upper end of the positioning cylinder (27), the sliding sheet (26) is a round spherical sheet and is provided with a round hole, a knife tip extends out of the round hole after the cutting knife (29) is installed at the top of the push rod (23), and the peeling knife (30) is installed at the top of the push rod (23) and is located 2-3mm behind the cutting knife (29).

7. The chestnut sheller according to claim 6, characterized in that the direction of the cutting edge of the cutter (29) is perpendicular to the horizontal movement direction of the push rod (23).

8. Chestnut peeling machine according to claim 6, characterized in that the direction of the cutting edge of the peeling knife (30) is parallel to the horizontal movement direction of the push rod (23).

9. The chestnut sheller according to claim 1, wherein the side of the positioning cylinder (27) is provided with a long hole, and the relative position of the positioning cylinder (27) on the push rod (23) is adjusted through an adjusting screw (28), so that the length of the knife point of the cutting knife (29) extending out of the slide sheet (26) is adjusted.

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