A method for shelling water caltrop

Abstract

The application discloses a water caltrop peeling method, which comprises at least one positioning station, the positioning station provides at least a bottom surface and a front surface supporting point for the water caltrop, a movable fixing assembly is installed above each positioning station, and the fixing assembly at least applies an inclined downward pressure to the upper surface area of the water caltrop; a cutting device is used for cutting the lower surface of the water caltrop; and a peeling device is provided with a plurality of peeling claws corresponding to different positions of the side surface of the water caltrop, the peeling claws move from the lower surface to the upper surface, so that the side skin is separated from the kernel, a specific cutting position is adopted, and the side peeling and special clamping mode are innovatively adopted, so that most of the shell wrapped outside the kernel is separated, only a small part of the shell on the upper surface is reserved, the integrity of the kernel is not affected, the kernels can be prevented from being stacked and adhered to each other during collection, and the kernels can be taken out by being slightly pried, and no additional tools are needed.

Description

Technical Field

[0001] This invention belongs to the technical field of water chestnut peeling methods, specifically a water chestnut peeling method. Background Technology

[0002] Traditional methods of shelling and extracting kernels from water chestnuts typically involve using scissor-like shelling tools or shearing mechanisms, or manually cutting multiple surfaces with a knife to remove the kernels. However, because the shell of a water chestnut is quite rough, hard, slippery, and has an irregular surface, it is not easy to grasp it by hand and then use tools to break it open. All these manual shelling and kernel extraction methods are invariably inefficient, limiting the development of the water chestnut industry.

[0003] In the prior art, there is a device for deshelling water chestnuts, such as the published technical document "CN 112450451B, Water Chestnut Deshelling Machine". Its specific process involves sequentially placing the shelled water chestnuts onto a clamping device, cutting the shells of the water chestnuts, hooking up the upper half of the shelled water chestnuts, and extruding and collecting the water chestnut kernels from the shelled water chestnuts. From the aforementioned document... Figure 2 It can be seen that the water chestnuts are placed upside down. However, the shapes of the water chestnuts vary greatly, making them very difficult to fix. This will affect the subsequent steps. Moreover, before the shell is removed, the kernel and the outer shell are tightly attached. When hooking up the upper part of the shelled water chestnut, the kernel may be torn. In addition, the kernel needs to be squeezed out. Since the water chestnut shell is relatively hard, it is unclear whether the squeezing process can be completed. Therefore, the applicant proposed an alternative method for breaking the shell of the water chestnut. Summary of the Invention

[0004] The purpose of this invention is to provide a method for peeling water chestnuts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A method for peeling water chestnuts includes the following steps:

[0007] The first step is to define the parts of the water chestnut, including the upper surface area a, the front side area b, the lower surface area c, the two sharp corners d, the two rear side areas e, the protruding fruit beak located in the front side area b f, and the depressions formed on both sides of the fruit beak g.

[0008] The second step is to place the rhombus in the positioning station and fix its current position using the fixing components;

[0009] The third step is to cut the lower surface area c using a cutting device, so that the lower surface area c forms an opening with each side.

[0010] The fourth step involves a shelling device equipped with at least one fixed claw and at least four movable claws. At least one fixed claw corresponds to the fruit beak f, and at least two movable claws (54) correspond to the rear two side regions e. In addition, at least two movable claws correspond to the front side region b, which is located in front of and behind the pointed corner d. The fixed claw and movable claws move from bottom to top to separate the fruit beak f, pointed corner d and all sides of the rhombus from the kernel.

[0011] Fifth step: the fixing component loosens the diamond, and finally the diamond is removed from the positioning station.

[0012] A further technical solution, based on the second step, involves placing the rhombus in the positioning station to form two contact surfaces: the front side area b and the lower surface area c. A downward force is applied to the upper surface area a by a fixing component, forming a vertically downward force F1 and a horizontally forward force F2, causing the rhombus to abut against the front and lower sides of the positioning station, respectively, forming a clamped state.

[0013] A further technical solution, based on the fourth step, is to apply a vertically downward force to the upper surface region a of the fixing component.

[0014] In a further technical solution, the positioning station is provided with two upper protrusions, two lower protrusions, or two upper protrusions and two lower protrusions;

[0015] The recess g corresponding to the rhombus corner is provided, and a first clearance groove is provided horizontally. The first clearance groove allows the cutting device to pass through, forming a placement position with a certain included angle.

[0016] Preferably, the positioning station includes a base and a fixing block, which are positioned at a 90° angle.

[0017] The base includes a body, a first clearance notch is provided on the side of the body near the fixing block, and outwardly inclined extensions are provided on both sides, with a second clearance notch between the extensions and the body.

[0018] In another embodiment, the positioning station is installed on the frame or conveying device, and the first clearance slot can be opened on the front or rear side.

[0019] The fixing block has two protrusions corresponding to the concave positions of the rhombus corners, and a first clearance groove is provided laterally.

[0020] In a further technical solution, the fixing component is tilted at the intersection of the base and the fixing block.

[0021] A further technical solution includes a fixing plate, through which a first movable member and a locking handle are rotatably connected. The first movable member is inclined toward the positioning station, and a first mounting part is provided at one end near the positioning station. The locking handle can limit the position of the first mounting part. A first spring-loaded member is provided on the bottom surface of the first mounting part and the fixing plate. A first limiting groove is provided on the first mounting part. A first clamping plate is placed in the first limiting groove and rotatably connected to the first mounting part. A "V" shaped groove is provided at the outer end of the first clamping plate to form two fixing points.

[0022] In a further technical solution, the shelling device includes a first cylinder arranged longitudinally, a fixed seat is installed at the output end of the first cylinder, the fixed seat is provided with at least one fixed claw and at least four movable claws, and the movable claws are rotatably connected to the fixed seat.

[0023] At least one of the fixing claws (53) has a second clearance groove (56) on its inner side;

[0024] Several movable claws (54) are evenly distributed on the left and right. A first inclined surface is provided at the end of the movable claw (54), a claw hook is provided at the lower end of the first inclined surface, and a vertical surface is provided between the first inclined surface and the claw hook.

[0025] A further technical solution is provided where a vertical surface is provided between the root of the first inclined surface and the claw hook, and several vertical surfaces clamp the outer side of the rhombus and assist the claw hook in guiding the shell removal.

[0026] A further technical solution also includes a longitudinally arranged second movable component. The second movable component has a second mounting part at one end near the positioning station, and a second limiting groove on the second mounting part. A second clamping plate is placed in the second limiting groove and rotatably connected to the second mounting part. The outer end of the second clamping plate has a groove, and several fixing protrusions are provided along the inner side of the groove. The other end of the second movable component has a pressing part, and a second spring pressing component is provided below the pressing part. A second cylinder is provided above the pressing part.

[0027] A further technical solution also includes a reset component, which is used to pull the first movable part to compress the first spring-loaded part; the lock handle is provided with a lock hook at one end near the first mounting part, the lock hook is provided with a second inclined surface, and a connecting plate is fixed on the first mounting part, the connecting plate abutting against the lock hook.

[0028] A further technical solution also includes a conveying device, which is provided with several positioning stations. The cutting device and the shelling device reset assembly are arranged along the running direction of the conveying device. It also includes a material-pushing brush, and a feeding plate is provided on one side of the material-pushing brush. When the conveying device rotates, the corner of the brush can contact the material-pushing brush.

[0029] The beneficial effects of this invention are:

[0030] This invention provides

[0031] This invention employs a specific cutting position and innovatively uses side shelling and a special clamping method to separate most of the outer shell covering the kernel, leaving only a small portion of the shell on the upper surface. This does not affect the integrity of the kernel, and it can prevent the kernels from stacking and sticking together during collection. Moreover, the kernels can be easily removed by gently breaking them apart without the need for additional tools.

[0032] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0033] Figure 1 : Overall structural diagram of the present invention.

[0034] Figure 2 : Structural diagram of the conveying device and fixing components of the present invention.

[0035] Figure 3 The fixed component structure of the present invention Figure 1 .

[0036] Figure 4 The fixed component structure of the present invention Figure 2 .

[0037] Figure 5 : Schematic diagram of the positioning station structure and rhombus of the present invention Figure 1 .

[0038] Figure 6 : Schematic diagram of the positioning station structure and rhombus of the present invention Figure 2

[0039] Figure 7 : Schematic diagram of the positioning station structure and rhombus of the present invention Figure 3 .

[0040] Figure 8 : A schematic diagram of the cutting process of this invention.

[0041] Figure 9 : Structural diagram of the shelling device of the present invention.

[0042] Figure 10 : Structural diagram of the fixed claw and movable claw of the present invention.

[0043] Figure 11 : A structural diagram of the reset component of the present invention.

[0044] Figure 12 The overall structure of the present invention, second embodiment, three-dimensional structure Figure 1 .

[0045] Figure 13The overall structure of the present invention, second embodiment, three-dimensional structure Figure 2 .

[0046] Figure 14 : Cross-sectional view of the second embodiment of the overall structure of the present invention.

[0047] Reference numerals: 1-Conveying device, 2-Positioning station, 21-Base support, 211-Body, 212-First clearance notch, 213-Extension, 214-Second clearance notch, 22-Fixing block, 221-Upper protrusion, 222-First clearance groove, 223-Lower protrusion, 3-Fixing assembly, 311-Fixing plate, 312-First movable part, 3121-Moving rod, 3122-Trigger, 313-Lock handle, 3131-Lock hook, 3132-Handle, 3133-Second inclined surface, 314-First mounting part, 3141-Connecting plate, 315-First spring-loaded part, 316-First limiting groove, 317-First clamping plate, 318-"V" 321-Second movable part, 322-Second mounting part, 323-Second limiting groove, 324-Second clamping plate, 325-Groove, 326-Protrusion, 327-Top pressing part, 328-Second spring pressing part, 329-Second cylinder, 4-Cutting device, 41-Mounting seat, 42-Cutting assembly, 43-Fourth cylinder, 44-Transverse moving assembly, 5-Shelling device, 51-First cylinder, 52-Fixed seat, 53-Fixed claw, 54-Movable claw, 55-Claw hook, 56-Second clearance groove, 57-First inclined surface, 58-Vertical surface, 6-Reset assembly, 61-Third cylinder, 62-Pull plate, 71-Material feeding brush, 72-Discharge plate. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0049] Please refer to Figure 1-14 ;

[0050] This invention aims to provide a novel method for peeling water chestnuts, specifically comprising a positioning station 2, a fixing component 3, a cutting device 4, and a peeling device. The positioning station 2 can be installed on a frame or a conveying device 1. Assuming this equipment has only one positioning station 2, refer to... Figures 12-14 The cutting device 4 and the shelling device are both located near this positioning station 2. During operation, the diamonds are placed into this positioning station 2 by manual feeding, and then fixed, cut and shelled. After that, they are taken out manually. Alternatively, multiple positioning stations are set in a straight line on the frame. Each positioning station is equipped with a fixing component and a shelling device. The cutting device 4 moves in a straight line to cut the diamonds in several positioning stations from the side, and then the shelling device corresponding to each positioning station shells the diamonds.

[0051] In another embodiment, assuming a conveyor device 1 is installed on the frame, the conveyor device 1 can be a linear or rotary table, etc., and the conveyor device 1 has several positioning stations 2. The cutting device 4 and the shelling device reset assembly 6 are arranged along the running direction of the conveyor device 1. The shelling step mainly consists of feeding, cutting, shelling and unloading, so four positioning stations 2 can be set. Of course, the possibility of setting waiting stations cannot be ruled out. Assuming there are four positioning stations 2, each positioning station 2 is distributed at 90° intervals. In this embodiment, the positioning station 2 at least provides the bottom and front support points for the rhombus. Corresponding to each positioning station 2, a movable fixing assembly 3 is installed above it. Of course, the above is only an example. Regardless of the installation method of the positioning station, the specific shelling steps are the same, and the specific steps are as follows:

[0052] The first step is to define the parts of the water chestnut, including the upper surface area a, the front side area b, the lower surface area c, the two sharp corners d, the two rear side areas e, the protruding beak f located in the front side area b, and the depressions g formed on both sides of the beak. It should be noted that the upper surface area a and the lower surface area c of the water chestnut have irregular convex and concave parts, the sides have irregular convex parts, and the kernel part is in the middle. The sharp corner d is basically kernelless. It should be noted that the model in the figure is only for illustration and does not represent the actual shape of the water chestnut. Based on the above characteristics, a set of structures that can fix the water chestnut is designed. Whether the water chestnut is fixed firmly will directly affect the subsequent processing steps.

[0053] The second step involves installing movable fixing components 3 above each positioning station 2. The water chestnut is placed in the positioning station 2, and its current position is fixed by the fixing components 3. It should be noted that this equipment is suitable for most types of mature water chestnuts on the market, but not for immature water chestnuts. Therefore, pre-screening is required before operation. If manual feeding is used, the suitability of the water chestnut must be manually determined before placing it in the positioning station. The specific operating steps are largely the same whether a conveyor device is installed or not.

[0054] The lower surface region c of the water chestnut has a concave and relatively flat surface. Therefore, the lower surface region c is placed face down in the positioning station 2. The accompanying drawings in this application are for illustrative purposes only, and the actual object shall prevail. They should not be construed as limiting the scope of protection of this application. The lower surface region c and the front side region b of the water chestnut are brought into contact with the positioning station 2. Then, the fixing component 3 is released to apply an inclined external force to the upper surface region a of the water chestnut. The inclined external force is dispersed into a downward force F1 and a forward force F2, thereby fixing the water chestnut on the positioning station 2.

[0055] The third step is to cut the lower surface area c with the cutting device 4, so that the lower surface area c forms an opening with each side, and separates it from the main body. Of course, during the cutting process, a small part of the kernel near the lower surface area will be cut off, but it will not affect the integrity of the kernel. Due to the external force applied by the fixing component 3, the lower surface area c remains in its original position, only separated from the diamond-shaped main body.

[0056] In the fourth step, the shelling device is equipped with at least one fixed claw 53 and at least four movable claws 54 arranged on the left and right. One fixed claw 53 corresponds to the fruit beak f, at least two movable claws 54 correspond to the rear two side areas e, and at least two other movable claws 54 correspond to the front side area b, that is, located in front of and behind the pointed corner d. The fixed claw 53 and movable claws 54 move from bottom to top to lift the fruit beak f, pointed corner d and all sides of the rhombus upward and peel them off from the kernel. At this time, only the upper surface area a is stuck to the kernel. It can be gently peeled off manually. Therefore, in this device, it is not necessary to separate the complete outer skin from the kernel.

[0057] Fifth step, the fixing component 3 loosens the diamond, and finally removes the diamond from the positioning station 2.

[0058] This invention employs a specific cutting position and innovatively uses a side-peeling method to separate most of the outer shell covering the kernel, leaving only a small portion of the shell on the upper surface. This does not affect the integrity of the kernel, and it can prevent the kernels from stacking and sticking together during collection. Moreover, the kernels can be easily removed by gently breaking them apart without the need for additional tools.

[0059] This invention specifically optimizes the structure of positioning station 2 to accommodate the unique shape of a rhombus, referring to... Figures 5-7 Specifically, it includes a base 21 and a fixing block 22, which form a certain angle. Preferably, the two are placed at a 90° angle. When loading materials, the diamond is placed on the base 21 and pushed forward so that the front side area b and the lower surface area c contact the fixing block 22 and the base 21.

[0060] In the embodiment of the present invention regarding the positioning station 2, the positioning station 2 is provided with two protrusions 2 corresponding to the recesses g of the rhombus, and a first clearance groove 222 is provided laterally. The first clearance groove 222 allows the cutting device 4 to pass through, and the first clearance groove 222 can be opened on the front or rear side, as shown in the figure. Figure 5 The first clearance slot 222 is located on the rear side, as shown in the reference. Figure 13 and Figure 14 The first clearance groove 222 is opened on the front side; the positioning station 2 is installed on the frame or conveying device 1. In addition, if the positioning station 2 is set in a fixed manner, a fixing component and a shell removal device are set for each positioning station.

[0061] Furthermore, the base 21 includes a body 211. The body 211 has a first clearance notch 212 on the side near the fixing block 22. The beak f of the rhombus is not flat; some are upturned, while others are round. Therefore, it is impossible to ensure that the rhombus is laid flat. For this reason, a first clearance is provided to hollow out the position of the beak f. An outwardly inclined extension 213 is provided on both sides of the body 211. However, the extension 213 does not protrude to the position of the pointed corner d. This is because the position of the pointed corner d also has irregular protrusions 221 that affect the flatness. Therefore, the extension 213 only stops at the middle position of the rhombus, which serves as a support and reduces the contact area. A second clearance notch 214 is provided between the extension 213 and the body 211. There are multiple second clearance notches, which are reserved for the shelling claws to extend. Of course, for some smaller rhombuses, a smaller base 21 can be used. In this case, the base does not need to be specially shaped; for example, a rectangle can be used.

[0062] In addition, although the water chestnut has sharp corners d on both sides, the sharp corners d are not symmetrical and their shapes are not the same. Even after being fixed, they are easy to shift during the cutting process due to uneven contact, which will affect the subsequent shelling steps. As mentioned above, the shape of the water chestnut has depressions g on both sides of the fruit beak f. The depressions g are used as natural locking positions. The fixing block 22 has two protrusions corresponding to the depressions g of the water chestnut, ensuring that the fixing block 22 has two fixing points for the water chestnut.

[0063] In this embodiment, the protrusions can be arranged in various ways, including two upper protrusions 221, two lower protrusions 223, or two upper protrusions 221 and two lower protrusions 223. Regardless of the implementation method, the same technical effect can be achieved. The preferred method is to use two upper protrusions 221 and two lower protrusions 223. In addition, a first clearance groove 222 is provided laterally. One of its functions is to prevent the cutting blade of the cutting device 4 from being obstructed. A ramp is also provided on the opposite side of the protrusions 221. The upper and lower protrusions 221 play a clamping and positioning role, so that the rhombus will not deviate.

[0064] Preferably, the fixing component 3 is tilted towards the intersection of the base 21 and the fixing block 22. Assuming that the base 21 and the fixing block 22 are distributed at 90°, the external force applied by the fixing component 3 is applied at 45° to the upper surface area a of the rhombus, which can better disperse the force into forward and downward forces to fix the rhombus.

[0065] According to one embodiment of the present invention regarding the fixing component 3, see reference to Figure 3 and Figure 4Specifically, it includes a fixed plate 311, which is located above the positioning station 2 and is fixedly installed on the conveying device 1 or the frame. A first movable member 312 is provided through the fixed plate 311 and a locking handle 313 is rotatably connected to it. In this embodiment, the first movable member 312 may be composed of several movable rods 3121 and triggers 3122. The first movable member 312 is inclined towards the positioning station 2, and a first mounting part 314 is provided at one end near the positioning station 2. The locking handle 313 can limit the position of the first mounting part 314. A first spring-loaded member 315 is provided on the bottom surface of the first mounting part 314 and the fixed plate 311. A first limiting groove 316 is provided on the first mounting part 314. A first clamping plate 317 is placed in the first limiting groove 316 and rotatably connected to the first mounting part 314. The width of the first limiting groove 316 is slightly larger than the width of the first clamping plate 317, so that it can swing slightly in the first limiting groove 316.

[0066] In the initial state, the locking handle 313 fixes the first mounting part 314, and the first spring-loaded member 315 is compressed, putting the whole structure in a tightened state. After placing the rhombus at the positioning station 2, the locking handle 313 is rotated to release the lock on the first mounting part 314. Then, under the push of the first spring-loaded member 315, the first movable member 312, the first mounting part 314, and the first clamping plate 317 are tilted towards the upper surface area a of the rhombus. Finally, the end of the first clamping plate 317 abuts against the upper surface area a of the rhombus. The aforementioned upper surface area a of the rhombus has irregular protrusions 221 and recesses, therefore... The outer end of the first clamping plate 317 is provided with a "V" shaped groove to form two fixing points. When one of the fixing points first contacts the protrusion 221, the first clamping plate 317 will shift due to its movable characteristic, causing the other fixing point to enter the recess, ensuring that there are two fixing points. Based on the above structure, it can be ensured that the rhombus is firmly fixed in the positioning station 2 without shifting. It should be noted that since the offset angle of the first clamping plate 317 is not very large, there is no need to set a separate reset structure. Of course, it is also possible to set a torsion spring, tension spring or other reset components at the rotating connection, which will not affect the use.

[0067] One embodiment of the present invention relating to the shelling device is described below. Figure 9 and Figure 10Specifically, it includes a first cylinder 51 arranged longitudinally. If the first cylinder 51 is installed below the conveying device, it will not rotate. The output end of the first cylinder 51 is equipped with a fixed seat 52. The fixed seat 52 is provided with at least one fixed claw 53 and at least four movable claws 54. The movable claws 54 are rotatably connected to the fixed seat 52. For example, a torsion spring or other components are provided at the rotatable connection to realize the reset operation. One fixed claw 53 corresponds to the position of the fruit beak f. A pair of movable claws 54 are located in the rear two side areas e behind the two sharp corners d. Another pair of movable claws 54 are located in the front side area b near the depression g in front of the two sharp corners d. A first inclined surface 57 is provided at the end of the movable claw 54. A claw hook 55 is provided at the lower end of the first inclined surface 57.

[0068] It should be noted that the more movable claws 54 are set in a limited space, the better, so that they can cover a larger area of ​​the rhombus side and reduce the empty space. The number of fixed claws 53 can be two, set at the front and back respectively.

[0069] In the initial state, apart from the fixed claw 53, the space enclosed by the four movable claws 54 is smaller than the base area of ​​the rhombus. When the first cylinder 51 pushes the whole structure upward, the first inclined surface 57 at the end of the movable claw 54 will first contact the lower surface area b and slide along the inclined surface to gradually open, so that the claw hook 55 reaches the cutting opening of the lower surface area b. At the same time, it will be inserted into the inner side of the rhombus from the opening. The first cylinder 51 continues to rise, and under the combined action of the fixed column and several movable claws 54, the side of the rhombus and the sharp corner d are lifted together, leaving only a small part of the upper surface area a to stick to the kernel. It should be noted that the outer shell of the rhombus is relatively hard. Although there are only five support points, other parts will be lifted together during the process of lifting the outer shell, so the entire side can be lifted together. In addition, the inner side of the fixed claw 53 is provided with a second clearance groove 222, mainly to avoid cutting the kernel.

[0070] However, there is a problem. After the bottom of the water chestnut slides out of the root of the first inclined surface 57, it will directly reach the position of the claw hook 55. At this time, the moving claw continues to move upward and the claw hook 55 will move in an arc trajectory. The corner is relatively large and may touch the bottom of the kernel and scratch it. Moreover, the claw hook 55 is inclined along the first inclined surface, which may result in the inability to remove the shell. Therefore, in this embodiment, a vertical surface 58 is also provided between the first inclined surface 57 and the claw hook 55.

[0071] based on Figure 10It can be seen that several limiting grooves are provided on both sides of the fixed base 52, and the movable claw 54 is placed in the limiting groove and close to the inner wall of the limiting groove. Therefore, the rotation range of the movable claw 54 is limited. The first inclined surface 57 at the end of the movable claw 54 will first contact the lower surface area b and slide along the inclined surface to gradually open. After sliding out of the root of the first inclined surface 57, it enters the position of the vertical surface 58. At this time, the root of the movable claw 54 abuts against the fixed base 52 and can no longer rotate. The vertical surfaces 58 of several movable claws 54 cooperate to form a clamping state on the side of the rhombus and simultaneously position the rhombus. The movable claw continues to move upward, and the vertical surface 58 plays a guiding role, so that the movable claw moves vertically. That is, the claw hook 55 will only move vertically to ensure that the shell can be removed and to avoid damaging the kernel. In addition, since the thickness of the rhombus shell is different in different seasons and environments, the lateral distance of the claw hook 55 is set to 1mm-3mm. Different claws are replaced according to different situations.

[0072] In another embodiment, the movable claw 54 is slightly tilted in the initial state, and the vertical plane 58 is also tilted. When working, the movable claw 54 is squeezed and rotated at a certain angle, and the entire movable claw 54 becomes vertical or nearly vertical, and the vertical plane becomes vertical or nearly vertical, so that the claw hook 55 can move vertically.

[0073] In addition, the upper part of the fixed claw 53 is higher than the position of the claw hook 55. Since the fruit beak is the thickest part, more force is needed to remove it. Therefore, during operation, all the force is first concentrated on the fixed claw 53. The fixed claw 53 will press against the fruit beak to make it open. Then, the movable claw 54 will be used to remove the shell from the other sides.

[0074] Based on the fact that the molting action is an upward thrust, refer to... Figure 3 and Figure 4 To strengthen the fixing of the rhombus, the fixing component 3 also includes a longitudinally arranged fixing structure. The fixing component 3 applies a vertically downward force to the upper surface area a. Specifically, it includes a longitudinally arranged second movable part 321. It should be noted that the second movable part 321 can be directly movably connected to the conveying device 1, or it can be installed on the fixed plate 311 and then rotated through it. A second mounting part 322 is provided at one end near the positioning station 2. A second limiting groove 323 is provided on the second mounting part 322. A second clamping plate 324 is placed in the second limiting groove 323 and rotatably connected to the second mounting part 322. A top pressing part 327 is provided at the other end of the second movable part 321. A second spring pressing part 328 is provided between the top pressing part 327 and the conveying device 1. Of course, the spring pressing part can also be provided between the fixed plates 311. A second cylinder 329 is provided above the top pressing part 327. The second cylinder 329 is installed on the frame.

[0075] In the initial state, the second spring-loaded member 328 applies external force to the top-pressing part 327 to lift the second movable member 321, so that the second clamping plate 324 is away from the upper surface area a of the rhombus. During operation, the second cylinder 329 applies a downward force to the top-pressing part 327, compressing the second spring-loaded member 328 and causing the second movable bracket to move downward, the second mounting part 322 and the second clamping plate 324 to move downward. Finally, the end of the second clamping plate 324 abuts against the upper surface area a of the rhombus. The upper surface area a of the rhombus mentioned above has irregular protrusions 221 and recesses. For this reason, a groove 325 is provided at the outer end of the second clamping plate 324, and several fixing protrusions 326 are provided along the inner side of the groove 325. At the same time, the second clamping plate 324 can be slightly rotated to ensure that a uniform downward force is applied to the rhombus to fix it.

[0076] After the shelling step is completed, the second cylinder 329 resets. Under the action of the second spring pressing component 328, the second movable component 321 drives the second clamping plate 324 to reset, removing the longitudinal force on the rhombus, but the lateral force still exists at this time.

[0077] Before unloading, the fixing component 3 needs to be reset, which also includes the reset component 6, as shown in the reference. Figure 11 The reset assembly 6 is used to pull the first movable member 312 to compress the first spring member 315; the lock handle 313 is provided with a lock hook 3131 at one end near the first mounting part 314, the lock hook 3131 is provided with an inclined surface, the first mounting part 314 is fixedly provided with a connecting plate 3141, the connecting plate 3141 abuts against the lock hook 3131; the lock handle 3132 is provided on the side of the lock handle 313 away from the lock hook 3131;

[0078] When the lock handle 313 is rotated, the lock hook 3131 will disengage from the connecting plate 3141. At this time, under the action of the first spring pressing member 315, the whole assembly is pushed out. After the lock handle 313 is released, it can automatically reset. That is, a torsion spring or other structure can be set at the rotating connection to realize the reset operation. When the whole assembly needs to be reset, the first movable assembly is pulled backward by the reset component 6. The connecting plate 3141 abuts against the inclined surface of the lock hook 3131, causing the lock handle 313 to flip. After crossing the inclined surface, the lock handle 313 resets and the lock hook 3131 fixes the connecting plate again.

[0079] Preferably, the reset assembly 6 includes a third cylinder 61 mounted obliquely on the frame, and a pull plate 62 is provided at the output end of the third cylinder 61. In the initial state, the third cylinder 61 is in the extended state and will not affect the movement of the first movable part 312. When it reaches the corresponding position, the pull plate 62 is in front of the trigger 3122. Then the third cylinder 61 retracts to make the pull plate 62 retract and abut against the trigger 3122 to pull it backward in sync.

[0080] After the fixed component 3 is reset, the material needs to be unloaded. In this invention, a material-pushing brush 71 is provided on the side near the loading position, and a material-unloading plate 72 is provided on the side of the material-pushing brush 71. When the conveying device 1 drives the rhombus to rotate toward the loading position, the rhombus abuts against the side of the material-pushing brush 71 and bends it. However, after bearing a certain pressure, the brush resets and pushes the rhombus out of the positioning station 2 in the opposite direction and falls into the material-unloading plate 72. The rhombus slides along the material-unloading plate 72 to complete the unloading.

[0081] The present invention further describes the cutting device 4, which includes a mounting base 41, on which a cutting component 42 is slidably connected. The cutting component 42 is connected to the output end of the fourth cylinder 43. Preferably, the outer shell near the fruit beak f is relatively thick, that is, the kernel in this part is relatively small. Therefore, the cutting blade of the cutting component in this embodiment has an inclined angle, which can ensure that the lower surface c is completely cut off.

[0082] In another embodiment, refer to Figures 12-14 The cutting device 4 includes a transverse component 44 and a cutting component 42. In this embodiment, the cutting opening is set at the position corresponding to the fruit beak f on the front side, and multiple positioning stations are arranged in a straight line. The transverse component 44 drives the cutting component 42 to move laterally.

[0083] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for peeling water chestnuts, characterized in that: Includes the following steps: The first step is to define the parts of the water chestnut, including the upper surface area a, the front side area b, the lower surface area c, the two sharp corners d, the two rear side areas e, the protruding fruit beak located in the front side area b f, and the depressions formed on both sides of the fruit beak g. The second step is to place the rhombus in the positioning station (2) and fix its current position using the fixing component (3); The third step is to cut the lower surface area c with the cutting device (4) so ​​that the lower surface area c forms an opening with each side. In the fourth step, the shelling device is equipped with at least one fixed claw (53) and at least four movable claws (54). At least one fixed claw (53) corresponds to the fruit beak f, at least two movable claws (54) correspond to the rear two side areas e, and at least two other movable claws (54) correspond to the front side area b, that is, located in front of and behind the pointed corner d. The fixed claw (53) and movable claws (54) move from bottom to top to separate the fruit beak f, pointed corner d and all sides of the rhombus from the kernel. Fifth step, the fixing component (3) loosens the rhombus, and finally removes the rhombus from the positioning station (2).

2. The method for peeling water chestnuts according to claim 1, characterized in that: Based on the second step, the rhombus is placed in the positioning station (2) to form two contact surfaces: the front side area b and the lower surface area c. The fixing component (3) applies a downward force to the upper surface area a, forming a vertical downward force F1 and a horizontal forward force F2, so that the rhombus abuts against the front and lower sides of the positioning station (2) respectively, forming a clamped state.

3. The method for peeling water chestnuts according to claim 2, characterized in that: Based on the second step, the fixing component (3) applies a vertically downward force to the upper surface region a.

4. The method for peeling water chestnuts according to claim 1, characterized in that: The positioning station (2) is provided with two upper protrusions (221) or two lower protrusions (223) or two upper protrusions (221) and two lower protrusions (223); The recess g corresponding to the rhombus corner is provided, and the first clearance groove (222) is provided horizontally, which is used for the cutting device (4) to pass through.

5. A method for peeling water chestnuts according to claim 4, characterized in that: The positioning station (2) is installed on the frame or conveying device (1), and the first clearance groove (222) is opened on the front or rear side.

6. A method for peeling water chestnuts according to claim 4, characterized in that: The positioning station includes a base (21) and a fixing block (22), and the fixing component (3) is tilted at the intersection of the base (21) and the fixing block (22).

7. A method for peeling water chestnuts according to claim 1, characterized in that: The fixing component (3) includes a fixing plate (311), in which a first movable part (312) and a locking handle (313) are rotatably connected. The first movable part (312) is inclined toward the positioning station (2), and a first mounting part (314) is provided at one end near the positioning station (2). The locking handle (313) can limit the position of the first mounting part (314). The first mounting part (314) and the bottom surface of the fixing plate (311) are provided with a first spring pressing part (315). A first limiting groove (316) is provided on the first mounting part (314). A first clamping plate (317) is placed in the first limiting groove (316) and rotatably connected to the first mounting part (314). The outer end of the first clamping plate (317) is provided with a "V" shaped groove to form two fixing points.

8. A method for peeling water chestnuts according to claim 1, characterized in that: The shell-removing device includes a first cylinder (51) arranged longitudinally. A fixed seat (52) is installed at the output end of the first cylinder (51). The fixed seat (52) is provided with at least one fixed claw (53) and at least four movable claws (54). The movable claws (54) are rotatably connected to the fixed seat (52). At least one of the fixing claws (53) has a second clearance groove (56) on its inner side; Several movable claws (54) are evenly distributed on the left and right. A first inclined surface (57) is provided at the end of the movable claw (54), a claw hook (55) is provided at the lower end of the first inclined surface (57), and a vertical surface (58) is provided between the first inclined surface (57) and the claw hook (55).

9. A method for peeling water chestnuts according to claim 8, characterized in that: A vertical surface (58) is provided between the root of the first inclined surface (57) and the claw hook (55). Several vertical surfaces (58) clamp the outer side of the rhombus and assist the claw hook (55) in guiding the shell removal.

10. A method for peeling water chestnuts according to claim 7, characterized in that: It also includes a second movable member (321) arranged longitudinally. The second movable member (321) has a second mounting part (322) at one end near the positioning station (2). A second limiting groove (323) is provided on the second mounting part (322). A second clamping plate (324) is placed in the second limiting groove (323) and rotatably connected to the second mounting part (322). A groove (325) is provided at the outer end of the second clamping plate (324). A plurality of fixing protrusions (326) are provided along the inner side of the groove (325). A pressing part (327) is provided at the other end of the second movable member (321). A second spring pressing member (328) is provided below the pressing part (327). A second cylinder (329) is provided above the pressing part (327).

Images