Longan flexible shelling and pitting full-automatic processing equipment

Abstract

The present application relates to a kind of flexible shelling of longan and automatic processing equipment of kernel, including rack, for adjusting the pose of longan feeding positioning mechanism, for sequentially clamping longan kernel and shelling kernel shelling mechanism and collection mechanism, feeding positioning mechanism, kernel shelling mechanism and collection mechanism are sequentially installed on rack from the top of rack to bottom;Feeding positioning mechanism is sequentially sent into kernel shelling mechanism after the longan of adjusted pose, longan is collected after completing kernel and shelling into collection mechanism.Combination of kernel and shelling process from raw material to finished product of longan is all automatically completed, without manual intervention, and processing efficiency is greatly improved;By feeding positioning mechanism, first adjust the pose of longan, then send into kernel shelling mechanism, ensure that kernel cutter can accurately aim at the position of fruit core, avoid mis-cutting fruit flesh, improve yield rate;Three mechanisms are sequentially arranged from the top of rack to bottom, and longan can be naturally transferred between processes by its own gravity, simplify conveying structure, reduce mechanical complexity.

Description

Technical Field

[0001] This invention relates to the field of flexible peeling and pitting technology for longan, and in particular to a fully automated processing equipment for flexible peeling and pitting of longan. Background Technology

[0002] Currently, the longan processing industry mainly relies on manual peeling and pitting or traditional rigid mechanical processing. While manual processing yields a higher percentage of intact fruit pulp, it is inefficient and cannot meet the demands of large-scale industrialization. Traditional mechanical processing equipment typically employs rigid extrusion or simple stamping methods. Due to the "flexible" nature of fresh longan fruit and its irregular shape (the center of gravity does not coincide with the center of the circle), existing technologies struggle to achieve precise positioning, resulting in significant damage, poor pulp integrity, severe juice loss (even exceeding 20%), and a high rate of broken pits during processing.

[0003] Utility model patent CN216453227U discloses an automated longan peeling and pitting machine, including a longan detection and conveying component, a longan clamping and transmission component, a longan pit lifting component, a longan pit cutting component, and a longan pulp receiving component. The longan detection and conveying component detects the size of the longan and conveys it to the longan clamping and transmission component; the longan clamping and transmission component clamps the longan and tears open its outer shell; the longan pit lifting component presses down on the longan pit; the longan pit cutting component separates the longan pulp from the pit and pre-cuts an opening in the longan shell; the longan pulp receiving component receives the separated longan pulp. This patent can automatically detect the diameter of the longan and effectively peel and pit longans within a certain diameter range; however, this patent cannot adjust the longan's position to facilitate pitting, and the pitting process needs further optimization.

[0004] Therefore, it is necessary to provide a fully automated equipment that combines directional feeding posture adjustment, intermittent precise positioning, rotary cutting for core removal, and flexible roller peeling technology to achieve a processing effect of "high efficiency, low damage, and high integrity". Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the existing technology and provide a fully automatic longan flexible peeling and pitting processing equipment.

[0006] The objective of this invention can be achieved through the following technical solutions: According to one aspect of the present invention, a fully automatic longan flexible peeling and pitting processing device is provided, comprising a frame, a feeding and positioning mechanism for adjusting the longan's position, a pitting and peeling mechanism for sequentially clamping the longan for pitting and peeling, and a collecting mechanism, wherein the feeding and positioning mechanism, the pitting and peeling mechanism, and the collecting mechanism are sequentially mounted on the frame from top to bottom. The feeding and positioning mechanism orderly feeds the longan, after adjusting its position, into the pitting and peeling mechanism. After the longan has been pitted and peeled, it enters the collection mechanism for collection.

[0007] As a preferred technical solution, the feeding and positioning mechanism includes a feeding guide, a feeding roller, a feeding guide groove, and a feeding unit with a feeding wheel. The feeding guide groove is inclinedly arranged on the frame. The axis of the feeding roller is perpendicular to the axis of the feeding unit and is mounted on the frame. The outlet of the feeding guide groove is located at the inlet of the feeding roller. The feeding wheel is located at the outlet of the feeding roller. The feeding guide is located at the outlet of the feeding roller.

[0008] As a preferred technical solution, the feeding rollers are a pair of feeding rollers with opposite directions of rotation and rotating inward, the outlet of the feeding guide groove is located in the middle of the inlet of the feeding rollers, the feeding wheel is located in the middle of the outlet of the feeding rollers, and the feeding guide tube is located in the middle of the bottom of the outlet of the feeding rollers.

[0009] As a preferred technical solution, the shelling and de-shelling mechanism includes a rotating unit consisting of a material tray, material clamps and a first power module. The material clamps are spaced apart on the circumference of the material tray, the material clamps are aligned with the feeding guide, and the material tray is mounted on the first power module.

[0010] As a preferred technical solution, the material clamp includes a first clamping block, a second clamping block, and a spring. The first clamping block has a hollow portion, and the second clamping block is inserted into the hollow portion of the first clamping block to form an X shape. Both the first clamping block and the second clamping block are connected to the bottom of the material clamp via the spring.

[0011] As a preferred technical solution, the shelling and peeling mechanism further includes a shelling unit consisting of a shelling knife, a shelling knife shaft, and a second power module, wherein the shelling knife shaft is slidably connected to the shelling knife and the second power module.

[0012] As a preferred technical solution, the core removal tool shaft includes a shaft body, a sliding keyway, and a reciprocating column. The reciprocating column is located in the middle of the shaft body, and the sliding keyway is provided at both ends of the shaft body. The shaft body is slidably connected to the core removal tool and the second power module through the sliding keyway.

[0013] As a preferred technical solution, the reciprocating column includes a spiral groove, and the shelling and peeling mechanism further includes a guide column, which is disposed on the frame and cooperates with the spiral groove.

[0014] As a preferred technical solution, the spiral groove is a closed single-ring spiral groove, and the spiral groove extends along the axial direction of the shaft.

[0015] As a preferred technical solution, the shelling mechanism further includes a shelling unit consisting of a support roller, a shelling roller, and a third power module. The support roller and the shelling roller are both electrically connected to the third power module, and the support roller and the shelling roller are arranged opposite to each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention automates the entire process of pitting and peeling longan from raw material to finished product through a feeding and positioning mechanism, a pitting and peeling mechanism, and a collecting mechanism, eliminating the need for manual intervention and significantly improving processing efficiency. The feeding and positioning mechanism first adjusts the longan's position before feeding it into the pitting and peeling mechanism, ensuring that the pitting knife accurately aligns with the pit, avoiding accidental cutting of the flesh and improving the yield rate. The three mechanisms are arranged sequentially from the top to the bottom of the frame, allowing the longan to be naturally transferred between processes using its own gravity, simplifying the conveying structure and reducing mechanical complexity.

[0017] 2. The two feeding rollers of this invention rotate in opposite directions and inwards. No matter which side the longan is initially biased towards, it will be automatically guided to the middle of the two rollers to achieve automatic centering. At the same time, the friction generated by the inward rotation can drive the longan to rotate around its axis, adjusting the axial direction of the fruit to be uniform, and ensuring that the subsequent pitting knife can accurately cut along the axis of the pit.

[0018] 3. In this invention, the guide groove outlet, feeding wheel, and feeding guide are all located in the middle of the two rollers, forming a straight central transfer channel. This ensures that each longan enters the next station in an orderly manner with the same posture. The feeding guide guides the longan with the adjusted posture into the pitting and peeling mechanism one by one, preventing the fruit from deviating in posture during the transfer process.

[0019] 4. The material clamps of the present invention are spaced apart on the circumference of the material tray. The material tray is driven to rotate intermittently by the first power module, so that each material clamp passes through the picking, core removal, unloading and emptying stations in sequence to form a circulating production line, which significantly improves the processing capacity per unit time.

[0020] 5. This invention uses two clamping blocks to form an X-shaped cross structure, which can contact the fruit from multiple directions simultaneously, making the clamping more uniform and stable, and preventing the longan from shifting or rotating during the pitting process; the spring connection allows the clamp to automatically adapt to longan of different sizes, without the need for mechanical adjustment based on fruit size; the clamping and releasing are completed by the rotation of the material tray and the gravity of each component, which is simple and reliable.

[0021] 6. Both ends of the shaft of the present invention are provided with sliding keyways, which are respectively connected to the core removal tool and the power module to ensure that the rotational torque is reliably transmitted during the axial sliding process and does not slip due to slippage failure; the guide post is embedded in the spiral groove of the reciprocating post. When the shaft rotates, the spiral groove forces the shaft to move axially, automatically converting the rotational motion into axial forward and backward motion.

[0022] 7. The closed single-ring spiral groove of this invention ensures that the de-nutrition knife completes a full process of infeed, bottoming, and retraction for each full rotation of the shaft. The action rhythm is clear and easy to match with the intermittent rotation of the material tray. The closed ring design eliminates the dead points of reciprocating motion, and the de-nutrition knife smoothly transitions between infeed and retraction, avoiding impact vibration and extending the service life of the tool and mechanism. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom view of the feeding and positioning mechanism of the present invention; Figure 3 This is a schematic diagram illustrating the principle of the de-shelling mechanism of the present invention; Figure 4 This is a schematic diagram of the coreless unit structure of the present invention; Figure 5 This is a schematic diagram of the core removal knife structure of the present invention; Figure 6 This is a schematic diagram of the core removal tool shaft structure of the present invention; Figure 7 This is a schematic diagram of the longan seed removal process of the present invention; Figure 8 This is a schematic diagram of the longan peeling process of the present invention; 1. Frame; 2. Feeding dial; 3. Feeding guide; 4. Feeding groove wheel; 5. Feeding wheel; 6. Feeding roller; 7. Feeding guide groove; 8. Material tray; 9. Material clamp; 10. Shaft; 11. Reciprocating column; 12. Pitting knife shaft; 13. Sliding keyway; 14. Spiral groove; 15. Pitting knife; 19. Support roller; 20. Peeling roller; 21. Pitting dial; 22. Pitting groove wheel; 23. Fruit shell; 24. Fruit pulp; A. Fruit top allowance; B. Knife stroke. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] Example 1 like Figure 1 As shown, a fully automatic longan flexible peeling and pitting processing equipment is characterized by comprising a frame 1, a feeding and positioning mechanism for adjusting the longan's posture, a pitting and peeling mechanism for sequentially clamping the longan for pitting and peeling, and a collecting mechanism, wherein the feeding and positioning mechanism, the pitting and peeling mechanism, and the collecting mechanism are sequentially installed on the frame from top to bottom. The feeding and positioning mechanism orderly feeds the longan, after adjusting its position, into the pitting and peeling mechanism. After the longan has been pitted and peeled, it enters the collection mechanism for collection.

[0026] like Figure 2 and Figure 3 As shown, the feeding and positioning mechanism includes a feeding guide 3, a feeding roller 6, a feeding guide groove 7, and a feeding unit with a feeding wheel 5. The feeding guide groove 7 is inclinedly arranged on the frame 1. The axis of the feeding roller 6 is perpendicular to the axis of the feeding unit and is mounted on the frame 1. The outlet of the feeding guide groove 7 is located at the inlet of the feeding roller 6. The feeding wheel 5 is located at the outlet of the feeding roller 6. The feeding guide 3 is located at the outlet of the feeding roller 6.

[0027] The feeding rollers 6 are a pair of feeding rollers with opposite directions of rotation and rotating inward. The outlet of the feeding guide groove 7 is located in the middle of the inlet of the feeding rollers 6. The feeding wheel 5 is located in the middle of the outlet of the feeding rollers 6. The feeding guide tube 3 is located in the middle of the bottom of the outlet of the feeding rollers 6.

[0028] In this embodiment, frame 1 serves as the supporting foundation of the equipment. The feeding and positioning mechanism is configured to receive fresh longan fruit and automatically adjust the fruit's posture according to its center of gravity shift characteristics, ensuring it is output in a single row in a predetermined direction. The pitting and peeling mechanism is connected to the directional feeding mechanism, used to receive the oriented longan and drive it to move intermittently between different workstations; it is equipped with a composite motion cutter to cut the stem and remove the pit during positioning pauses; and it is equipped with a flexible roller to receive the pitted fruit and separate the peel from the pulp.

[0029] A feeding guide trough 7 is inclinedly set on the frame 1. The cross-section of the feeding guide trough 7 is U-shaped. Longan is poured in through the inlet or opening of the feeding guide trough 7 and guided into the inlet of the feeding roller 6.

[0030] The feeding rollers 6 are a pair of continuously rotating cylindrical feeding rollers (also called directional rollers); the axis of the feeding rollers 6 is set horizontally along the axis of the frame 1; the two feeding rollers 6 rotate in different directions, both rotating inward (i.e., towards the middle of the two feeding rollers); the pair of feeding rollers 6 are configured to use friction and the longan's own gravity to drive the longan to produce a spiral motion, thereby automatically adjusting the longitudinal axis of the longan to be consistent with the axis of the feeding rollers 6; and causing the longan to continuously move to the outlet of the feeding rollers 6. The feeding rollers 6 can be rotated by a pair of meshing gears, and the rotation speed of the feeding rollers 6 is controlled by a servo motor.

[0031] The feeding unit includes a feeding wheel 5, located above the outlet of the feeding roller 6. The feeding wheel 5 is equipped with a paddle for feeding the longan fruits arranged on the feeding roller 6 one by one into the feeding guide tube 3. The feeding wheel 5 is positioned above and in the middle of the two feeding rollers 6 for easy feeding of the longan fruits. The feeding unit also includes a first rotating shaft, a feeding dial 2, a feeding groove wheel 4, and a first motor. The feeding wheel 5 is mounted on the first rotating shaft, which is coaxially connected to the feeding groove wheel 4. The feeding dial 2 and the feeding groove wheel 4 mesh. The power of the first motor is sequentially transmitted to the feeding dial 2, the feeding groove wheel 4, the first rotating shaft, and the feeding wheel 5. The feeding dial 2 is configured to drive the feeding groove wheel 4 to rotate 1 / 4 of a revolution for every 1 revolution, with intermittent pauses for 3 / 4 of a cycle, forming four standard workstation cycles. The continuous rotational motion is converted into intermittent stepping motion through the feeding dial 2 and the feeding groove wheel 4, achieving orderly feeding of the longan fruits. The feeding guide 3 is used to accurately guide the longan sorted by the feeding wheel 5 to fall into the pitting and shelling mechanism; the feeding guide 3 is cylindrical, perpendicular to the ground and located at the bottom of the outlet of the feeding roller 6.

[0032] The axis of the feeding unit is mounted on the frame 1 perpendicular to the axis of the feeding roller 6. The feeding roller 6 is mounted on the frame 1 along the axis of the frame 1. The feeding unit is mounted on the frame 1 and perpendicular to the axis of the frame 1.

[0033] like Figure 1 and Figure 3 As shown, the shelling and de-shelling mechanism includes a rotating unit consisting of a material tray 8, a material clamp 9, and a first power module. The material clamp 9 is spaced apart on the circumference of the material tray 8 and is aligned with the feeding guide tube 3. The material tray 8 is mounted on the first power module.

[0034] The material clamp 9 includes a first clamping block, a second clamping block, and a spring. The first clamping block has a hollow portion, and the second clamping block is inserted into the hollow portion of the first clamping block to form an X shape. Both the first clamping block and the second clamping block are connected to the bottom of the material clamp 9 by the spring.

[0035] like Figure 4 , Figure 5 , Figure 6 As shown, the shelling and peeling mechanism also includes a shelling unit consisting of a shelling knife 15, a shelling knife shaft 16, and a second power module. The shelling knife shaft 12 is slidably connected to the shelling knife 15 and the second power module, respectively.

[0036] The core removal cutter shaft 12 includes a shaft body 10, a sliding keyway 13, and a reciprocating column 11. The reciprocating column 11 is located in the middle of the shaft body 10, and the sliding keyway 13 is provided at both ends of the shaft body 10. The shaft body 10 is connected to the core removal cutter 15 and the second power module through the sliding keyway 13.

[0037] The reciprocating column 11 includes a spiral groove 14, and the shelling and peeling mechanism also includes a guide column, which is disposed on the frame 1 and cooperates with the spiral groove 14.

[0038] The spiral groove 14 is a closed single-ring spiral groove 14, which extends along the axial direction of the shaft 10.

[0039] The shelling and peeling mechanism also includes a peeling unit consisting of a support roller 19, a peeling roller 20 and a third power module. The support roller 19 and the peeling roller 20 are both electrically connected to the third power module and are arranged opposite to each other.

[0040] In this embodiment, the core removal and shelling mechanism is divided into three parts: a rotation unit, a core removal unit, and a shelling unit.

[0041] The rotating unit includes a material tray 8, material clamps 9, and a corresponding first power module. The first power module can be a core removal dial 21, a core removal grooved wheel 22, a second rotating shaft, a second motor, etc. The material tray 8 is mounted on the second rotating shaft, which is coaxially connected to the core removal grooved wheel 22. The core removal dial 21 and the core removal grooved wheel 22 mesh. The power of the second motor is sequentially transmitted to the core removal dial 21, the core removal grooved wheel 22, the second rotating shaft, and the material tray 8. The material clamps 9 are set on the circumference of the material tray 8, with adjacent material clamps 9 spaced 90° apart (or one-quarter of the circumference of the material tray 8). The core removal dial 21 is configured to drive the core removal grooved wheel 22 to rotate 1 / 4 revolution for every 1 revolution, and pause intermittently for 3 / 4 of the cycle, forming four standard workstation cycles.

[0042] The material clamp 9 is configured with automatic clamping and releasing functions, and it sequentially passes through the material tray, the picking position, the pitting position, the unloading position, and the empty position. The picking position is set opposite to the unloading position, and both positions are perpendicular to the ground. The pitting position is set opposite to the empty position, and the pitting position is parallel to the ground. The picking position is at the top of the material tray and aligned with the feeding guide. The unloading position is at the bottom of the material tray and aligned with the collecting mechanism. The pitting position is on the right side of the material tray and aligned with the pitting unit. Longan enters the material clamp at the picking position from the feeding guide. Then the material tray rotates, causing the material clamp at the picking position to move to the pitting position. The pitting unit completes the pitting of the longan at this working position. The material tray then moves the material clamp at the pitting position to the unloading position, so that the pitted longan enters the shelling unit for shelling. Then the material clamp moves to the empty position, waiting to move back to the picking position to accommodate the longan. The pitting position is configured to be horizontal, so that the stem of the longan fruit is directly facing the cutter of the automatic pitting mechanism when at rest.

[0043] The material clamp 9 is equipped with a first clamping block, a second clamping block, and a spring. The first and second clamping blocks form an X shape, meaning the first clamping block is hollow, and the diameter of the hollow part is smaller than the diameter of the longan. The second clamping block is inserted into the hollow part of the first clamping block, and the clamping area is above the intersection point of the first and second clamping blocks (on the side away from the material tray). A spring is set at the bottom of the first and second clamping blocks, connecting to the bottom of the material clamp. The weight of the first and second clamping blocks can compress the spring, causing the intersection point to move downward and reduce the clamping area. The reduced clamping area can still accommodate the longan. After the longan enters the clamping area, the weight of the longan causes the spring to compress, causing the intersection point to move and thus clamp the longan. When the spring overcomes the weight of the first and second clamping blocks and the longan, it pushes the first and second clamping blocks to move, increasing the clamping area, and thus releasing the longan, similar to the working principle of scissors. In addition, a limiting structure is provided in the material clamp to limit the maximum displacement of the first clamping block and the second clamping block. For example, a limiting plate is provided, which is located between the bottom of the material clamp and the bottom of the first clamping block or the second clamping block. When the first clamping block and the second clamping block contact the limiting plate, they cannot continue to move, thus avoiding the continuous pushing of the longan into the depth of the first clamping block and the second clamping block during the pit removal process.

[0044] The specific working process is as follows: When the material clamp 9 picks up material, the material clamp is aligned with the feeding guide (located at the material picking position). At this time, the material clamp is located at the highest point of the material tray. The first clamp block and the second clamp block compress the spring, and the longan falls onto the first clamp block and the second clamp block. The spring is compressed again to make the first clamp block and the second clamp block clamp the longan tightly. Then the material clamp rotates with the material tray to the pit removal position. At this time, although the direction of gravity of the first clamp block, the second clamp block and the longan has changed, the spring can still achieve good clamping. After the pit removal is completed at the pit removal position, the material clamp moves to the unloading position. At this time, the gravity of the first clamp block, the second clamp block and the longan can no longer restrain the spring. Under the action of the gravity of the first clamp block, the second clamp block and the longan and the spring force, the intersection point moves towards the material tray, the clamping area becomes larger, and the longan is no longer restrained. The longan falls naturally, thus realizing the loading and unloading of longan.

[0045] The pitting unit includes a pitting blade shaft 12, a pitting blade 15, and a second power module. The second power module is configured to drive the pitting blade shaft 12 to perform both high-speed rotational motion and axial reciprocating linear motion. The pitting blade 15 is a hollow tubular structure with a cutting edge 16 (blade) and a gripping structure 17 at the front end. The gripping structure 17 is a hook-shaped claw or a spiral thread. The gripping structure is configured to screw the pit into and lock it inside the blade tube when rotating and cutting into the stem of the longan.

[0046] The core removal tool shaft 12 includes a shaft body 10 and a keyway 13. A reciprocating column 11, which is cylindrical and has a diameter larger than that of the shaft body 10, is provided in the middle of the shaft body 10. The keyway 13 is located at both ends of the shaft body 10, and the two ends of the shaft body 10 are movably connected to the core removal tool 15 and the second power module, respectively, through the keyway 13. The keyway 13 ensures the continuity of power transmission and enables axial movement. In addition, the core removal tool 15 has a hollow structure, and its interior is slidably connected to the shaft body 10 through the keyway 13. A closed annular spiral groove 14 is provided on the reciprocating column 11, and the direction of the spiral groove 14 changes back and forth along the axial direction of the reciprocating column 11. A guide post is provided at the corresponding position and is inserted into the spiral groove 14. When the core removal cutter shaft 12 rotates, the interaction between the spiral groove 14 and the guide post causes the core removal cutter shaft 12 to undergo axial displacement along the spiral groove 14. At this time, a sliding keyway 13 is provided so that the core removal cutter shaft 12 can move axially, that is, the core removal cutter shaft 12 moves axially along the second power module and the core removal cutter 15 moves axially, so as to realize high-speed rotational motion and axial reciprocating linear motion.

[0047] The cutting blade is used to rotate and remove the longan skin and pulp until it reaches the pit. The blade claws hold the pit in place. Specifically, when the blade rotates and cuts into the stem of the longan, the blade claws or screw threads use the rotational action to screw the pit into the pitting blade, thus firmly holding and locking the pit. Then the pitting blade shaft retracts, causing the pitting blade to remove the pit from the pulp along with the pit.

[0048] like Figure 7 As shown, the detailed working process of pitting is as follows: The second power module drives the pitting blade shaft 12. With the cooperation of the spiral groove 14 and the guide post, the second power module and the pitting blade shaft 12 are slidably connected, causing the pitting blade shaft 12 to slide out of the second power module and into the pitting blade 15 until it reaches its maximum displacement. At this time, the pitting blade shaft 12 pushes out the pit, and the pitting blade 15 also moves axially under the action of the pitting blade shaft 12, approaching the longan to perform the peeling and pitting operation. When the spiral groove 14 reaches its maximum axial displacement, the axial displacement decreases, and the pitting blade shaft 12 retracts into the second power module, simultaneously driving the pitting blade 15 to retract synchronously. Repeating the above process achieves pitting. The distance B of the travel of the pitting blade 15 leaves a fruit tip allowance A.

[0049] The shelling unit includes a support roller 19 and a shelling roller 20; the shelling roller 20 is a flexible roller and also a pair of rollers. The shelling roller 20 rotates outward, and the surface material of the roller body is rubber or other food-grade elastic material to achieve flexible extrusion.

[0050] The idler roller 19 supports the longan fruit and is spaced apart from the peeling roller 20. The rotation of the flexible peeling roller 20 grips the fruit upwards, causing the peel to be rolled into the rollers and removed, while the pulp slides off the surface of the idler roller. The axes of the idler roller 19 and the peeling roller 20 are supported by three points. The diameter of the peeling roller is approximately 65mm, and the gap between the two rollers is adjustable, ranging from 3mm to 5mm, to accommodate longan fruits of different sizes. The third power module includes a third motor, which provides power to the idler roller and the peeling roller.

[0051] like Figure 8 As shown, a collection mechanism is set directly below the peeling unit for the peeled longan fruit, separating the longan peel 23 from the pulp. The collection mechanism is a collection box.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fully automated longan flexible peeling and pitting processing device, characterized in that, Includes a frame (1), a feeding and positioning mechanism for adjusting the longan's position, a pitting and peeling mechanism for sequentially clamping the longan to remove the pit and peel it, and a collection mechanism. The feeding and positioning mechanism, the pitting and peeling mechanism, and the collection mechanism are sequentially installed on the frame from top to bottom. The feeding and positioning mechanism orderly feeds the longan, after adjusting its position, into the pitting and peeling mechanism. After the longan has been pitted and peeled, it enters the collection mechanism for collection.

2. The fully automated longan flexible peeling and pitting processing equipment according to claim 1, characterized in that, The feeding and positioning mechanism includes a feeding guide tube (3), a feeding roller (6), a feeding guide groove (7), and a feeding unit with a feeding wheel (5). The feeding guide groove (7) is inclinedly arranged on the frame (1). The axis of the feeding roller (6) is perpendicular to the axis of the feeding unit and is installed on the frame (1). The outlet of the feeding guide groove (7) is located at the inlet of the feeding roller (6). The feeding wheel (5) is located at the outlet of the feeding roller (6). The feeding guide tube (3) is located at the outlet of the feeding roller (6).

3. The fully automated longan flexible peeling and pitting processing equipment according to claim 2, characterized in that, The feeding rollers (6) are a pair of feeding rollers (6) with opposite directions of rotation and rotating inward. The outlet of the feeding guide groove (7) is located in the middle of the inlet of the feeding rollers (6). The feeding wheel (5) is located in the middle of the outlet of the feeding rollers (6). The feeding guide tube (3) is located in the middle of the bottom of the outlet of the feeding rollers (6).

4. The fully automated longan flexible peeling and pitting processing equipment according to claim 2, characterized in that, The shelling and de-shelling mechanism includes a rotating unit consisting of a material tray (8), a material clamp (9), and a first power module. The material clamps (9) are spaced apart on the circumference of the material tray (8). The material clamps (9) are aligned with the feeding guide tube (3). The material tray (8) is mounted on the first power module.

5. The fully automated longan flexible peeling and pitting processing equipment according to claim 4, characterized in that, The material clamp (9) includes a first clamping block, a second clamping block and a spring. The first clamping block has a hollow part. The second clamping block is inserted into the hollow part of the first clamping block and forms an X shape. The first clamping block and the second clamping block are both connected to the bottom of the material clamp (9) by the spring.

6. The fully automated longan flexible peeling and pitting processing equipment according to claim 4, characterized in that, The shelling and peeling mechanism also includes a shelling unit consisting of a shelling knife (15), a shelling knife shaft (16), and a second power module. The shelling knife shaft (12) is slidably connected to the shelling knife (15) and the second power module, respectively.

7. The fully automated longan flexible peeling and pitting processing equipment according to claim 6, characterized in that, The core removal cutter shaft (12) includes a shaft body (10), a sliding keyway (13) and a reciprocating column (11). The reciprocating column (11) is located in the middle of the shaft body (10), and the sliding keyway (13) is provided at both ends of the shaft body (10). The shaft body (10) is connected to the core removal cutter (15) and the second power module through the sliding keyway (13).

8. The fully automated longan flexible peeling and pitting processing equipment according to claim 7, characterized in that, The reciprocating column (11) includes a spiral groove (14), and the shelling and deshelling mechanism also includes a guide column, which is set on the frame (1) and cooperates with the spiral groove (14).

9. The fully automated longan flexible peeling and pitting processing equipment according to claim 8, characterized in that, The spiral groove (14) is a closed single-ring spiral groove (14), which extends along the axial direction of the shaft (10).

10. The fully automated longan flexible peeling and pitting processing equipment according to claim 2, characterized in that, The shelling and peeling mechanism further includes a peeling unit consisting of a support roller (19), a peeling roller (20) and a third power module. The support roller (19) and the peeling roller (20) are both electrically connected to the third power module, and the support roller (19) and the peeling roller (20) are arranged opposite to each other.

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