Semi-automatic water chestnut shelling device and shelling method thereof

Abstract

The invention discloses a semi-automatic water caltrop shelling device and a shelling method thereof. The semi-automatic water caltrop shelling device comprises a rack, a mounting plate is arranged on the rack, a material opening and a stop block are arranged on a discharging station of the mounting plate, a liftable ejection block is arranged in the material opening, a knife rest plate is arranged on the mounting plate in a sliding mode, and a cutter is arranged on the knife rest plate. The cutter is in the shape of a rounded triangle, the blade part of the cutter is arranged at a rounded corner and two connecting walls for connecting the rounded corner, the blade part is a single-slope blade, the blade part arranged at the rounded corner is thin and sharp, an obtuse angle is arranged on the blade part arranged at the two connecting walls, a first lead screw sliding table is vertically arranged on the cutter frame plate, and a second lead screw sliding table is vertically arranged on the cutter frame plate. A bearing plate is arranged on a sliding table base of the first lead screw sliding table, a friction plate is arranged on the bearing plate and located in front of the cutter, a groove is formed in the friction plate, and wavy friction faces are arranged on the portions, located on the left side and the right side of the groove, of the friction plate. The husking efficiency of the water chestnuts can be improved, and pulp of the water chestnuts cannot be damaged.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a semi-automatic water chestnut shelling device and a shelling method thereof. Background Art

[0002] Water chestnut is an aquatic plant that can be eaten or used as medicine. It is half-moon-shaped with obvious protrusions and depressions. A hilum protrudes from the depression. There are slender sharp corners at both ends of the water chestnut. The overall appearance is similar to a curved horn. Water chestnuts have thick shells, which need to be peeled off when eaten or used as medicine. Usually, people peel them by hand when eating them, but when mass production is required, the efficiency of manual shelling cannot meet the mass production requirements. Moreover, when manual shelling is performed for a long time, the hands of the staff are easily pricked by the sharp thorns at both ends of the water chestnut during the shelling process. At present, there is no mechanical equipment on the market that can peel water chestnuts in batches. There are only some auxiliary gadgets, which are time-consuming and labor-intensive to use, and the gadgets are easy to hurt the hands. In addition, the integrity of the pulp cannot be guaranteed during the shelling process, affecting the sales quality. Summary of the invention

[0003] The object of the present invention is to provide a semi-automatic water chestnut shelling device and a shelling method thereof, which can semi-automatically shell the water chestnut without damaging the water chestnut pulp.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a semi-automatic water chestnut shelling device, comprising: a frame, a mounting plate inclined downward from the back to the front is arranged on the frame, a material discharge station is arranged at the front end of the mounting plate, a material opening is arranged on the material discharge station, two blocks are vertically arranged on the mounting plate located in front of the material opening, the top wall of the block is parallel to the mounting plate, a liftable top block is arranged in the material opening, a knife holder plate is slidably arranged on the mounting plate, a cutting knife parallel to the mounting plate and obliquely aligned with the material opening is arranged on the knife holder plate, the cutting knife is in the shape of a rounded triangle, and the blade of the cutting knife is arranged at the rounded corner and the connecting At the two connecting walls where the fillets meet, the blade is a single bevel blade, the blade arranged at the fillets is thin and sharp, a blunt angle is arranged on the blade arranged at the two connecting walls, a first lead screw slide is vertically arranged on the tool holder plate, the first lead screw slide is connected to the first servo motor, the first servo motor is electrically connected to the position regulator, a receiving plate is arranged on the slide seat of the first lead screw slide, a friction plate aligned with the cutter is arranged on the receiving plate, the friction plate is located in front of the cutter, a groove is arranged on the friction plate, a wavy friction surface is arranged on the friction plates located on the left and right sides of the groove, and the wavy friction surface is parallel to the top wall of the block.

[0005] Furthermore, the aforementioned semi-automatic water chestnut shelling device, wherein two material openings are symmetrically arranged on the mounting plate, two blocks are vertically arranged on the front sides of the two material openings, two cutting knives are symmetrically arranged on the knife holder plate, the two cutting knives are respectively aligned with the two material openings, and two friction plates are symmetrically arranged on the receiving plate, the two friction plates are respectively aligned with the two cutting knives.

[0006] Furthermore, in the aforementioned semi-automatic water chestnut shelling device, a guide block corresponding to the material opening is arranged on the mounting plate located at the rear side of the material opening, an avoidance hole connected to the material opening is arranged on the guide block, and an inclined wall sloping downward from the back to the front is arranged on the guide block.

[0007] Furthermore, in the aforementioned semi-automatic water chestnut shelling device, a wave groove is provided on the rear side wall of the stop block.

[0008] Furthermore, in the aforementioned semi-automatic water chestnut peeling device, the top block is made of rubber material, and an inclined top portion is provided on the top block, and the inclined top portion is inclined upward from front to rear.

[0009] Furthermore, in the aforementioned semi-automatic water chestnut peeling device, an upper origin sensor is arranged on the first screw slide, and an upper induction block capable of cooperating with the upper origin sensor is arranged on the receiving plate.

[0010] Furthermore, the aforementioned semi-automatic water chestnut peeling device, wherein a motor fixing plate is arranged below the mounting plate, two second servo motors are symmetrically arranged on the motor fixing plate, the two second servo motors are electrically connected to the pressure controller, a guide rail fixing plate is arranged on the motor fixing plate, two first sliders are slidably provided on the guide rail fixing plate, two lower origin sensors are arranged on the guide rail fixing plate, lower sensing blocks that can cooperate with the lower origin sensors on the same side are arranged on the two first sliders, a connecting plate is arranged on the first slider, a top block is fixed on the connecting plate, a connecting rod is rotatably connected to the first slider, the connecting rod is rotatably connected to the eccentric position of the crankshaft disk, and the crankshaft disk is connected to the second servo motor on the same side.

[0011] Furthermore, in the aforementioned semi-automatic water chestnut peeling device, the connection structure between the tool holder plate and the mounting plate is as follows: linear guide rails are respectively provided on the left and right sides of the mounting plate, second sliders are respectively provided on the left and right sides of the tool holder plate, the second sliders are slidably clamped on the linear guide rails on the corresponding sides, a second lead screw slide is provided on the mounting plate, the second lead screw slide is connected to the third servo motor, an extension plate is extended on the tool holder plate, the extension plate is connected to the slide seat on the second lead screw slide, a rear origin sensing switch is provided on the linear guide rail, and a rear sensing block capable of cooperating with the rear origin sensing switch is provided on the extension plate.

[0012] Furthermore, in the aforementioned semi-automatic water chestnut peeling device, a protective cover is arranged on the mounting plate, the protective cover covers the outer side of the tool holder plate, an avoidance groove which does not interfere with the first screw slide and the receiving plate is opened on the front side wall of the protective cover, a safety grating transmitter and a safety grating receiver are arranged on the mounting plate, and the safety grating transmitter and the safety grating receiver are respectively located on the left and right sides of the unloading station.

[0013] The shelling method uses the above-mentioned semi-automatic water chestnut shelling device, and its steps are as follows: the water chestnut is placed on the material opening, the knife holder plate moves forward with the friction plate and the cutter to the position where the friction plate is located above the material opening, the first servo motor drives the friction plate to descend, so that the height spacing between the peak of the wavy friction surface of the friction plate and the thin and sharp blade of the cutter matches the thickness of the fruit shell, the top block pushes the water chestnut upward onto the friction plate, the top block cooperates with the friction plate to clamp the water chestnut, the knife holder plate drives the friction plate and the cutter to continue to move forward, the wavy friction surface on the friction plate rubs the water chestnut so that the water chestnut rotates until the raised part of the water chestnut is obliquely aligned with the cutter, and the cutter shells the fruit shell of the raised part of the water chestnut; after completing the shelling work of the raised part, the friction plate is reset upward, the knife holder plate resets backward with the friction plate and the cutter, and the top block resets downward with the water chestnut, Change the direction and put it back on the material opening. The knife holder plate moves forward with the friction plate and the cutter to the position where the friction plate is located above the material opening. The first servo motor drives the friction plate to descend so that the height distance between the peak of the wavy friction surface of the friction plate and the thin and sharp blade of the cutter matches the thickness of the fruit shell. The top block pushes the water chestnut onto the friction plate upward, and the top block and the friction plate cooperate to clamp the water chestnut. The knife holder plate drives the friction plate and the cutter to continue to move forward. The wavy friction surface on the friction plate rubs the water chestnut to rotate the water chestnut until the concave part of the water chestnut is obliquely aligned with the cutter. The cutter shells the fruit shell of the concave part of the water chestnut. After completing the shelling work of the concave part, the entire water chestnut has completed the shelling work, the friction plate is reset upward, the knife holder plate resets backward with the friction plate and the cutter, and the top block resets downward with the water chestnut, and the shelled water chestnut is removed from the material opening.

[0014] The invention has the advantages that the height position of the friction plate can be accurately adjusted by controlling the first servo motor to drive the first screw slide through the position regulator, so that the height distance between the peak of the wavy friction surface of the friction plate and the thin and sharp blade on the cutter can be quickly and accurately adjusted according to the thickness of the water chestnut shell to match the thickness of the water chestnut shell. Secondly, after the water chestnut is placed on the material opening, the two sharp corners of the water chestnut are against the stopper. When the friction plate is located above the material opening, the top block rises and the water chestnut can be pushed onto the friction plate. Then, when the friction plate and the cutter move forward, the friction plate rubs and rotates the concave part or the convex part of the water chestnut until it is obliquely aligned with the cutter. When the cutter moves forward, the fruit shell on the concave part or the convex part of the water chestnut can be peeled off. The peeled fruit shell will fall off under its own weight. After completing the peeling of one side wall, the staff will change the face of the water chestnut and place it on the material opening, and then peel the other face. In this way, the peeling work can be completed quickly, and the flesh of the water chestnut will not be damaged during the peeling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the semi-automatic water chestnut peeling device described in the present invention.

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure after removing the protective cover.

[0017] Figure 3 It is a schematic diagram of the connection structure between the second servo motor and the top block.

[0018] Figure 4 It is a schematic diagram of the connection structure between the tool holder plate and the mounting plate.

[0019] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle cutter.

[0020] Figure 6 yes Figure 4 Schematic diagram of the structure of the middle friction plate.

[0021] Figure 7 It is a schematic diagram of the structure when the concave part of the water chestnut is facing upward.

[0022] Figure 8 It is a schematic diagram of the structure when the friction plate and the top block cooperate to clamp the water chestnut. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0024] like Figures 1 to 8As shown, the semi-automatic water chestnut peeling device described in the present invention includes: a frame 1, a mounting plate 2 inclined downward from the back to the front is arranged on the frame 1, a discharge station is arranged at the front end of the mounting plate 2, a material opening 21 is arranged on the discharge station, two blocks 22 are vertically arranged on the mounting plate 2 located in front of the material opening 21, the top wall of the block 22 is parallel to the mounting plate 2, a wave groove is arranged on the rear side wall of the block 22, a guide block 23 is arranged on the mounting plate 2 located in the rear side of the material opening 21, a avoidance hole connected with the material opening 21 is arranged on the guide block 23, and an inclined wall inclined downward from the back to the front is arranged on the guide block 23. When placing the water chestnuts, the staff places the water chestnuts on the material opening 21, and the sharp corners at both ends of the water chestnuts will abut against the inclined wall of the guide block 23. Under the guidance of the inclined wall, the water chestnuts will move toward the block 22 under their own weight, and the sharp corners at both ends of the water chestnuts will abut against the two blocks 22 on the front side of the material opening 21. The avoidance holes are set on the guide block 23 to prevent interference with the water chestnuts.

[0025] A motor fixing plate 3 is arranged below the mounting plate 2, a second servo motor 31 is arranged on the motor fixing plate 3, the second servo motor 31 is electrically connected to the pressure controller, a guide rail fixing plate 32 is arranged on the motor fixing plate 3, a first slider 33 is slidably provided on the guide rail fixing plate 32, a lower origin sensor 321 is arranged on the guide rail fixing plate 32, a lower sensing block 331 capable of cooperating with the lower origin sensor 321 is arranged on the first slider 33, a connecting plate 34 is arranged on the first slider 33, a top block 35 is fixedly arranged on the connecting plate 34, the top block 35 is aligned with the material port 21 up and down, the top block 35 is made of rubber material, an inclined top is arranged on the top block 35, the inclined top is inclined upward from front to back, a connecting rod 36 is rotatably connected to the first slider 33, the connecting rod 36 is rotatably connected to the eccentric position of the crankshaft disk 37, and the crankshaft disk 37 is connected to the second servo motor 31. The second servo motor 31 drives the crankshaft disk 37 to rotate, and the rotating crankshaft disk 37 drives the connecting rod 36 to rotate eccentrically. The eccentrically rotating connecting rod 36 drives the first slider 33 to rise and fall, thereby driving the top block 35 to rise and fall in the material port 21. Since the connecting rod 36 performs a circular motion when the crankshaft disk 37 drives the connecting rod 36 to rotate, the lifting stroke of the first slider 33 connected to the connecting rod 36 is fixed. When the first slider 33 descends to the lower sensing block 331 and is sensed by the lower origin position sensor 321, it means that the first slider 33 drives the top block 35 to descend into place. At this time, the second servo motor 31 drives the crankshaft disk 37 to rotate 180° to control the first slider 33 to rise to the highest position. When the rotation angle of the driving crankshaft disk 37 is greater than 180° and less than 360°, the first slider 33 is controlled to descend.

[0026] A tool holder plate 4 is slidably arranged on the mounting plate 2, and the connection structure between the tool holder plate 4 and the mounting plate 2 is as follows: linear guide rails 26 are respectively arranged on the left and right sides of the mounting plate 2, and second sliders 41 are respectively arranged on the left and right sides of the tool holder plate 4, and the second slider 41 is slidably clamped on the linear guide rails 26 on the corresponding side, a second lead screw slide 27 is arranged on the mounting plate 2, and the second lead screw slide 27 is connected to the third servo motor 271, an extension plate 42 is extended on the tool holder plate 4, and the extension plate 42 is connected to the slide seat on the second lead screw slide 27, a rear origin sensing switch 261 is arranged on the linear guide rail 26, and a rear sensing block 421 that can cooperate with the rear origin sensing switch 261 is arranged on the extension plate 42. A cutter 43 is arranged on the tool holder plate 4, which is parallel to the mounting plate 2 and obliquely aligned with the material opening 21. The cutter 43 is in the shape of a rounded triangle. The blade of the cutter 43 is arranged at the rounded corner 431 and at two connecting walls 432 connecting the rounded corner 431. The blade is a single bevel blade. The blade arranged at the rounded corner 431 is thin and sharp, and an obtuse angle is arranged on the blade arranged at the two connecting walls 432. A first lead screw slide 5 is vertically arranged on the tool holder plate 4. The first lead screw slide 5 is connected to a first servo motor 51, and the first servo motor 51 is electrically connected to a position regulator. A receiving plate 52 is provided on the slide seat of the first screw slide 5, a friction plate 53 aligned with the cutter 41 is provided on the receiving plate 52, the friction plate 53 is located in front of the cutter 43, a groove 531 is provided on the friction plate 53, and wavy friction surfaces 532 are provided on the friction plate 53 located on the left and right sides of the groove 531, and the wavy friction surfaces 532 are parallel to the top wall of the stop block 22, an upper origin sensor 54 is provided on the first screw slide 5, and an upper sensing block 521 capable of cooperating with the upper origin sensor 54 is provided on the receiving plate 52.Since the shell thickness of different varieties of water chestnuts is different, it is necessary to adjust the height distance between the peak of the wavy friction surface 532 of the friction plate 53 and the thin and sharp blade of the cutter 43 to match the shell thickness. Before adjustment, the receiving plate 52 moves upward to the position where the upper sensing block 521 is sensed by the upper origin sensor 54 on the first lead screw slide 5. At this time, the friction plate 53 is at the highest position, and the height distance between the friction plate 53 and the cutter 43 is fixed. Then, under the control of the position regulator, the first servo motor 51 cooperates with the first lead screw slide 5 to drive the receiving plate 52 and the friction plate 53 on the receiving plate 52 to descend. The descending distance is the height distance between the friction plate 53 and the cutter 43 when the friction plate 53 is at the highest position minus the thickness of the fruit shell. A height difference of 0.2 to 0.3 mm is left between the cutter 43 and the stopper 22. Since the top wall of the stopper 22 is parallel to the mounting plate 2 and the cutter is also parallel to the mounting plate 2, the cutter 43 is parallel to the top wall of the stopper 22. The cutter 43 will not contact the stopper 22 when moving forward. The fruit shell thickness of the water chestnut is higher than 0.5 mm. Therefore, after adjusting the height distance between the friction plate 53 and the cutter 43, when the water chestnut rests on the friction plate 53, the cutter 43 can peel off the water chestnut fruit shell without contacting the stopper 22.

[0027] In this embodiment, a safety grating transmitter 24 and a safety grating receiver 25 are provided on the mounting plate 2. The safety grating transmitter 24 and the safety grating receiver 25 are respectively located on the left and right sides of the unloading station. After the infrared rays emitted by the safety grating transmitter 24 are received by the safety grating receiver 25, an invisible optical barrier will be formed on the unloading station. When placing the water chestnuts, the staff will block the infrared rays between the safety grating transmitter 24 and the safety grating receiver 25, and the equipment will be in a shutdown state to prevent accidents caused by accidental touch. When the placement is completed, the infrared rays are no longer blocked, indicating that the placement of the water chestnuts is completed, the staff evacuates the unloading station, and the equipment can be started for subsequent work.

[0028] In this embodiment, a protective cover 28 is provided on the mounting plate 2, and the protective cover 28 covers the outer side of the knife holder plate 4. An avoidance groove 281 that does not interfere with the first lead screw slide 5 and the receiving plate 52 is provided on the front side wall of the protective cover 28. The protective cover 28 can protect the second lead screw slide 27 and the cutter 43, thereby ensuring the stroke accuracy of the second lead screw slide 27 and the sharpness of the cutter 43, and avoiding interference from foreign objects.

[0029] The water chestnut is placed at the material opening 21, and the sharp corners at both ends of the water chestnut are against the wave grooves of the two stoppers 22. When the water chestnut is on the material opening 21, either the raised part of the water chestnut faces forward or the depressed part of the water chestnut faces forward. The raised part of the water chestnut faces forward as an example below. Then, the knife holder plate 4 is driven to move forward through the cooperation between the second screw slide 27 and the third servo motor 271, and the knife holder plate 4 drives the first screw slide 5 and the receiving plate 52 to move forward together. When the friction plate 53 on the receiving plate 52 is located above the material opening 21, the friction plate 53 is lowered so that the height spacing between the peak of the wavy friction surface 532 of the friction plate 53 and the thin and sharp blade on the cutter 43 is the same as the shell thickness of the water chestnut to be peeled. Then, the second servo motor 31 drives the top When the block 35 rises, the top block 35 will abut against the water chestnut during the rising process. At this time, the concave part of the water chestnut abuts against the top block 35 downward, and the convex part of the water chestnut faces upward, and then the water chestnut is pushed up. When pushing the water chestnut, the sharp corners at both ends of the water chestnut will move in the wave groove of the stopper 22. The inclined surface in the wave groove can convert part of the vertical lifting force into a lateral force in the horizontal direction, thereby enhancing the contact stability between the water chestnut and the stopper 22. At the same time, an angle is formed between the inclined top of the top block 35 that tilts upward from front to back and the stopper 22 to prevent it from separating from the stopper 22 when pushing the water chestnut. When the rising top block 35 pushes the water chestnut to contact with the friction plate 53, the convex part of the water chestnut contacts the wavy friction surface 532 on the friction plate 53, and the water chestnut is clamped by the top block 35 and the friction plate 53 Hold. During the clamping process, due to the different shell thickness and hardness of water chestnuts of different varieties, the force for clamping different varieties of water chestnuts is different. The clamping force on the water chestnut between the top block 35 and the friction plate 53 is achieved by controlling the torque of the second servo motor 31 by a pressure controller. The technology of controlling the torque of the second servo motor 31 by a pressure controller is prior art and will not be described in detail here. Then the third servo motor 271 cooperates with the second lead screw slide 27 to drive the tool holder plate 4 to continue to move forward. The wavy friction surface 532 on the friction plate 53 will rub the water chestnut, and the water chestnut will rotate under the obstruction of the block 22 until the raised portion of the water chestnut is obliquely aligned with the cutter 43. When the raised portion of the water chestnut is obliquely aligned with the cutter 43, the friction plate 53 continues to move forward. The water chestnut no longer rotates, and the cutter 43 cuts the shell of the raised part of the water chestnut through the thin and sharp blade. When the cutter 43 moves forward, the blunt-angled blades on the two connecting walls 432 are inserted between the flesh and the shell of the raised part of the water chestnut to tear the shell of the raised part. In this process, the thin and sharp blade can easily cut the shell with less force, reduce damage to the flesh, and keep the flesh intact. Then, the thickness of the blunt-angled blade is used to apply a uniform lateral force to the shell to stretch and tear the incision. The incision will tear to the side wall of the water chestnut, and the shell will be peeled off. If the blunt-angled blade is not used for stretching and tearing, and only the thin and sharp blade is used for cutting, the shell on the side wall of the water chestnut cannot be cut without cutting the flesh.The flesh of the water chestnut raised part is separated from the shell, and the peeled shell will fall on the mounting plate 2. Since the mounting plate 2 is inclined, the fallen shell will fall on the ground and will not accumulate on the mounting plate 2. When the cutter 43 is peeling the shell, the cutter 43 will not collide with the stopper 22. After the shell of the raised part is peeled off, the friction plate 53 is reset upward to the position where the upper sensing block 521 is sensed by the upper origin sensor 54 on the first screw slide 5, and the tool holder plate 4 is reset backward to the position where the rear sensing block 421 is sensed by the rear origin sensing switch 261. After the friction plate 53 is reset upward, the friction plate 53 will not interfere with the water chestnut when the tool holder plate 4 is reset backward, and the top block 35 descends to the position where the lower sensing block 331 is sensed by the lower origin sensor 321, and the shelled water chestnut returns to the material port 21. The staff changes the direction and places the half-peeled water chestnut on the material port 21 again, so that the shelled raised part of the water chestnut faces the rear side and the unpeeled raised part faces the rear side. The shelling concave portion faces the front side, the knife holder plate 4 drives the friction plate 53 to move forward again to the top of the material opening 21, the top block 35 rises again to push the water chestnut to contact with the friction plate 53, the knife holder plate 4 drives the friction plate 53 and the cutter 43 to move forward, the friction plate 53 forces the water chestnut to rotate until the concave portion of the water chestnut is obliquely aligned with the cutter 43, at this time, the hilum on the concave portion of the water chestnut is located in the groove 531 of the friction plate 53, so that the hilum does not interfere with the concave portion of the water chestnut against the friction plate 53, and the cutter 43 can peel the shell of the concave portion of the water chestnut during the forward movement. When the shells on the concave portion and the convex portion of the water chestnut are peeled off, the shells of other parts will automatically fall off.

[0030] In this embodiment, two material ports 21 are symmetrically arranged on the material discharge station of the mounting plate 2, two stoppers 22 are vertically arranged on the front sides of the two material ports 21, and guide blocks 23 are arranged on the rear sides of the two material ports 21. Two cutters 43 are symmetrically arranged on the tool holder plate 4, and the two cutters 43 are respectively obliquely aligned with the two material ports 21. Two friction plates 53 are symmetrically arranged on the receiving plate 52, and the two friction plates 53 are respectively located on the front sides of the two cutters 43. Two first friction plates 53 are symmetrically arranged on the motor fixing plate 3. Two servo motors 31, the two second servo motors 31 are electrically connected to the pressure controller, two first sliders 33 are slidably mounted on the guide rail fixing plate 32, two lower origin sensors 321 are mounted on the guide rail fixing plate 32, lower sensing blocks 331 that can cooperate with the lower origin position sensors 321 on the same side are mounted on the two first sliders 33, connecting plates 34 are mounted on the two first sliders 33, top blocks 35 are mounted on the two connecting plates 34, and the two top blocks 35 are aligned with the two material ports 21 in the upper and lower directions. The above arrangement allows two water chestnuts to be shelled at one time, thereby improving the shelling efficiency.

[0031] In this embodiment, a control box 6 is provided on the frame 1. The control box 5 generally includes wiring components, electrical components, a control panel, control buttons and other components. These are conventional technologies in the electrical field, so they are not described here. In addition, the above-mentioned pressure controller and position regulator are also provided in the control box 6. The pressure controller and position regulator are both existing technologies.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. Semi-automatic water chestnut shelling device, including: The frame is characterized in that: a mounting plate inclined downward from the back to the front is arranged on the frame, a material discharge station is arranged at the front end of the mounting plate, a material opening is arranged on the material discharge station, two blocks are vertically arranged on the mounting plate located in front of the material opening, the top wall of the block is parallel to the mounting plate, a liftable top block is arranged in the material opening, a knife holder plate is slidably arranged on the mounting plate, a cutter parallel to the mounting plate and obliquely aligned with the material opening is arranged on the knife holder plate, the cutter is in the shape of a rounded triangle, the blade of the cutter is arranged at the rounded corner and at two connecting walls connecting the rounded corners, and the blade is a single A bevel blade, the blade portion arranged at the rounded corner is thin and sharp, and the blade portion arranged at the two connecting walls is arranged with a blunt angle. A first lead screw slide is vertically arranged on the tool holder plate, the first lead screw slide is connected to the first servo motor, the first servo motor is electrically connected to the position regulator, a receiving plate is arranged on the slide seat of the first lead screw slide, a friction plate aligned with the cutter is arranged on the receiving plate, the friction plate is located in front of the cutter, a groove is arranged on the friction plate, and a wavy friction surface is arranged on the friction plate located on the left and right sides of the groove, and the wavy friction surface is parallel to the top wall of the block.

2. The semi-automatic water chestnut peeling device according to claim 1, characterized in that: Two material openings are symmetrically arranged on the mounting plate, two blocks are vertically arranged on the front sides of the two material openings, two cutters are symmetrically arranged on the tool holder plate, the two cutters are respectively aligned with the two material openings, and two friction plates are symmetrically arranged on the receiving plate, the two friction plates are respectively aligned with the two cutters.

3. The semi-automatic water chestnut peeling device according to claim 2, characterized in that: A guide block corresponding to the material opening is arranged on the mounting plate at the rear side of the material opening, a avoidance hole connected with the material opening is arranged on the guide block, and an inclined wall inclined downward from the back to the front is arranged on the guide block.

4. The semi-automatic water chestnut peeling device according to claim 2, characterized in that: A wave groove is arranged on the rear side wall of the stopper.

5. The semi-automatic water chestnut peeling device according to claim 2, characterized in that: The top block is made of rubber material and is provided with an inclined top portion which is inclined upward from the front to the rear.

6. The semi-automatic water chestnut shelling device according to claim 2, characterized in that: An upper origin sensor is arranged on the first lead screw slide, and an upper induction block which can cooperate with the upper origin sensor is arranged on the receiving plate.

7. The semi-automatic water chestnut shelling device according to claim 2, characterized in that: A motor fixing plate is arranged below the mounting plate, and two second servo motors are symmetrically arranged on the motor fixing plate, and the two second servo motors are electrically connected to the pressure controller; a guide rail fixing plate is arranged on the motor fixing plate, and two first sliders are slidably arranged on the guide rail fixing plate, and two lower origin sensors are arranged on the guide rail fixing plate, and lower sensing blocks that can cooperate with the lower origin sensors on the same side are arranged on the two first sliders; a connecting plate is arranged on the first slider, and the top block is fixed on the connecting plate; a connecting rod is rotatably connected to the first slider, and the connecting rod is rotatably connected to the eccentric position of the crankshaft disk, and the crankshaft disk is connected to the second servo motor on the same side.

8. The semi-automatic water chestnut shelling device according to claim 2, characterized in that: The connection structure between the tool holder plate and the mounting plate is as follows: linear guide rails are respectively arranged on the left and right sides of the mounting plate, second sliders are respectively arranged on the left and right sides of the tool holder plate, the second sliders are slidably clamped on the linear guide rails on the corresponding sides, a second lead screw slide is arranged on the mounting plate, the second lead screw slide is connected to the third servo motor, an extension plate is extended on the tool holder plate, the extension plate is connected to the slide seat on the second lead screw slide, a rear origin sensing switch is arranged on the linear guide rail, and a rear sensing block capable of cooperating with the rear origin sensing switch is arranged on the extension plate.

9. The semi-automatic water chestnut peeling device according to claim 2, characterized in that: A protective cover is arranged on the mounting plate, the protective cover covers the outer side of the tool holder plate, an avoidance groove which does not interfere with the first lead screw slide and the receiving plate is opened on the front side wall of the protective cover, a safety grating transmitter and a safety grating receiver are arranged on the mounting plate, and the safety grating transmitter and the safety grating receiver are respectively located on the left and right sides of the unloading station.

10. A shelling method, characterized in that: The semi-automatic water chestnut shelling device according to any one of claims 1 to 9 is used, and the steps are as follows: the water chestnut is placed on the material inlet, the knife holder plate moves forward with the friction plate and the cutter to a position where the friction plate is located above the material inlet, the first servo motor drives the friction plate to descend, so that the height spacing between the peak of the wavy friction surface of the friction plate and the thin and sharp blade of the cutter matches the thickness of the fruit shell, the top block pushes the water chestnut upward onto the friction plate, the top block cooperates with the friction plate to clamp the water chestnut, the knife holder plate drives the friction plate and the cutter to continue to move forward, the wavy friction surface on the friction plate rubs the water chestnut so that the water chestnut rotates until the raised part of the water chestnut is obliquely aligned with the cutter, and the cutter shells the fruit shell of the raised part of the water chestnut; after completing the shelling work of the raised part, the friction plate is reset upward, the knife holder plate resets backward with the friction plate and the cutter, and the top block resets downward with the water chestnut, The water chestnut is changed in direction and placed back on the material opening. The knife holder plate moves forward with the friction plate and the cutter to the position where the friction plate is located above the material opening. The first servo motor drives the friction plate to descend so that the height spacing between the peak of the wavy friction surface of the friction plate and the thin and sharp blade of the cutter matches the thickness of the fruit shell. The top block pushes the water chestnut upward onto the friction plate, and the top block and the friction plate cooperate to clamp the water chestnut. The knife holder plate drives the friction plate and the cutter to continue to move forward, and the wavy friction surface on the friction plate rubs the water chestnut to rotate until the concave part of the water chestnut is obliquely aligned with the cutter, and the cutter shells the fruit shell of the concave part of the water chestnut. After completing the shelling work of the concave part, the entire water chestnut has completed the shelling work, the friction plate is reset upward, the knife holder plate resets backward with the friction plate and the cutter, and the top block resets downward with the water chestnut, and the shelled water chestnut is removed from the material opening.

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