Fruit and vegetable sorting pawl structure

Abstract

The present invention relates to the technical field of fruit and vegetable sorting instruments on a production line, and in particular to a fruit and vegetable sorting claw structure, which includes a friction device, a detector, a locking mechanism, and a claw skeleton that can deflect up and down. The fixed end of the claw skeleton is used for hinging on the production line and moving forward with the production line. The deflecting end of the claw skeleton is used for supporting the sample and is movably provided with a roller group for abutting against the surface of the sample. The locking mechanism locks the claw skeleton. The roller group rotates by rubbing against the friction device as the moving claw skeleton passes through the friction device. The claw skeleton can drive the sample to pass by and approach the detection end of the detector. The fruit and vegetable sorting claw structure of the present invention can consistently realize the processes of feeding, transporting, detecting, and discharging fruit and vegetable samples on the production line, and has good detection effect and can avoid mutual collision between fruits and vegetables during transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of fruit and vegetable sorting instruments, and in particular to a fruit and vegetable sorting claw structure. Background Art

[0002] After a large quantity of fruits and vegetables are picked, before being put on the market, they are often sorted on an automated assembly line to screen out products with poor quality. In the sorting work, generally, a plurality of sorting instruments are distributed and installed on the assembly line, and each sorting instrument operates along with the movement of the assembly line. During sorting, the fruits and vegetables are respectively placed on the sorting instruments to realize the feeding, transportation, and discharging of the samples, and the fruit and vegetable samples need to be detected during the transportation process.

[0003] Currently, the structures of the sorting instruments installed and applied on the assembly line are diverse. The structure of one type of sorting instrument is in the form of using rollers and fishbone-shaped fruit claws in relay. Claw supports are arranged on both sides of the assembly line. The rollers are responsible for rotating the samples and are only used for appearance detection and cannot realize the automatic discharging of fruits and vegetables. The structure of the fishbone-shaped fruit claws is only suitable for internal transmission detection in a single direction and cannot rotate the fruits and vegetables, so the detection is inconvenient. The structure of another type of sorting instrument is a scheme of using double rollers to lift fruits and vegetables above the assembly line. Double rollers are used for rotation, and the third support point is dry friction, which can realize rotation and discharging. However, the efficiency of the assembly line is reduced by half compared with that of the arrangement on both sides, and it is difficult to arrange the internal transmission detection sensors, and the distance from the samples is relatively far.

[0004] In addition, in the prior art, in order to create detection conditions, some assembly lines are divided into multiple detection sections and different claw supports are used, but it will cause collisions between fruits and vegetables during transportation, increasing the cost. In addition, although the prior art can rotate the samples, none of them can controllably adjust the rotation posture of the fruit and vegetable samples.

[0005] Generally speaking, the sorting instruments in the prior art cannot consistently realize the processes of feeding, transporting, detecting, and discharging the fruit and vegetable samples on the assembly line, and are not convenient for detection, or cause collisions between fruits and vegetables during the detection process. Summary of the Invention

[0006] The present invention provides a fruit and vegetable sorting claw structure, which can consistently realize the processes of feeding, transporting, detecting, and discharging the fruit and vegetable samples on the assembly line, and has good detection effect and can avoid mutual collisions between fruits and vegetables during transportation.

[0007] The present invention provides a sorting claw structure for fruits and vegetables, which includes a friction device, a detector, a locking mechanism, and a claw skeleton that can deflect up and down. The fixed end of the claw skeleton is used for being hinged on the production line and advancing along with the production line. The deflecting end of the claw skeleton is used for supporting the sample, and a roller group for abutting against the surface of the sample is movably arranged thereon. The locking mechanism locks the claw skeleton. The roller group passes through the friction device along with the advancing claw skeleton and rotates by rubbing against the friction device. The claw skeleton can drive the sample to pass by and approach the detection end of the detector.

[0008] According to a sorting claw structure for fruits and vegetables provided by the present invention, a supporting portion for supporting the sample and bending and sinking downward is formed at the bottom of the claw skeleton. A passage that extends through along the advancing direction of the claw skeleton and is connected to the sample upward is formed inside the supporting portion. The detection end of the detector extends into the supporting portion through the passage and approaches the sample passing by the detector.

[0009] According to a sorting claw structure for fruits and vegetables provided by the present invention, the roller group includes four independently operating rollers, and the four rollers are used for abutting against the sample upward from four points respectively at the bottom of the sample.

[0010] According to a sorting claw structure for fruits and vegetables provided by the present invention, the four rollers respectively include two large rollers and two small rollers. The two large rollers are located in front of the two small rollers, and the horizontal heights of the two small rollers are respectively higher than those of the large rollers. The large rollers pass through the friction device along with the advancing claw skeleton and rotate by rubbing against the friction device.

[0011] According to a sorting claw structure for fruits and vegetables provided by the present invention, rubber rings are respectively arranged on the outer circumferences of the large rollers and the small rollers.

[0012] According to a sorting claw structure for fruits and vegetables provided by the present invention, the locking mechanism includes a lock groove and a lock rod. The lock groove is formed on one side of the claw skeleton, and the lock rod is buckled in the lock groove.

[0013] According to a sorting claw structure for fruits and vegetables provided by the present invention, a rotating shaft is arranged at the fixed end of the claw skeleton, and the claw skeleton is hinged on the production line through the rotating shaft.

[0014] According to a sorting claw structure for fruits and vegetables provided by the present invention, a turning frame is arranged on one side of the claw skeleton. The lock groove and the rotating shaft are respectively arranged inside the turning frame. A pushing arm extending downward is arranged on the outer side of the turning frame. An elastic cross beam is arranged inside the turning frame. Two ends of the elastic cross beam are respectively connected to the rotating shaft and the pushing arm. A triggering mechanism is further included. The triggering mechanism drives the elastic cross beam to deform upward by triggering upward to push the pushing arm, so as to push the lock groove inside the turning frame to move upward away from the lock rod.

[0015] A vegetable and fruit sorting pawl structure provided by the present invention, the friction device includes at least two movable belts with controllable speeds and independent movements, and the two large rollers respectively generate independent rotations by rubbing against different movable belts.

[0016] A vegetable and fruit sorting pawl structure provided by the present invention further includes a plurality of clutch mechanisms, and each of the movable belts is respectively connected to each of the clutch mechanisms, and each of the movable belts is respectively controlled by each of the clutch mechanisms to leave or abut against the large roller.

[0017] A vegetable and fruit sorting pawl structure provided by the present invention, the pawl skeleton is hinged to the assembly line through its own fixed end, so the pawl skeleton can move forward along with the assembly line. Since the pawl skeleton can deflect up and down, when the locking mechanism locks the pawl skeleton, the deflecting end of the pawl skeleton will not deflect downward. At this time, the deflecting end of the pawl skeleton can stably support the vegetable and fruit sample upward, and can realize the work of loading and transporting the vegetable and fruit; when discharging is required, as long as the locking mechanism is controlled to release the locking of the pawl skeleton, the deflecting end of the pawl skeleton will deflect downward due to its own weight, and the supported vegetable and fruit sample will also be unloaded accordingly, realizing the discharging work; in addition, the pawl skeleton can drive the sample to pass by and approach the detection end of the detector. That is to say, the detector and the detection end are fixedly arranged and will not rotate with the assembly line. When the pawl skeleton moves forward along with the assembly line, the vegetable and fruit sample can pass by the detection end of the detector, so the quality detection of the vegetable and fruit sample can be realized; at the same time, since a roller group for abutting against the surface of the vegetable and fruit sample is movably arranged at the deflecting end of the pawl skeleton, and since the roller group passes by the friction device along with the advancing pawl skeleton and rubs against the friction device to generate rotation. That is to say, the friction device is fixedly arranged and will not rotate with the assembly line. When the roller group moves forward on the assembly line along with the pawl skeleton, when the roller group passes by the friction device for a moment, through rubbing against the friction device, the roller group will be prompted to rotate, and thus the roller group will drive the vegetable and fruit sample to generate an instantaneous rotation, so as to actuate and adjust the posture of the vegetable and fruit sample, and adjust the samples with random postures during loading into a unified posture as much as possible. Therefore, each vegetable and fruit sample can pass by the detection end of the detector in a unified posture, enabling the detector to detect the vegetable and fruit samples in a unified posture, so that the detection process has consistency, making the detection effect better, and this detection method also effectively avoids bumps between vegetable and fruit samples during transportation. Therefore, a vegetable and fruit sorting pawl structure of the present invention can consistently realize the processes of loading, transporting, detecting, and discharging vegetable and fruit samples on the assembly line, and has good detection effect and can avoid mutual bumps between vegetables and fruits during transportation. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is the front view of the present invention;

[0020] Figure 2 is the side view of the present invention;

[0021] Figure 3 is the schematic diagram of the active state of the present invention;

[0022] Figure 4 is the schematic diagram of the active state of the present invention;

[0023] Figure 5 is the front view of a further solution of the present invention;

[0024] Figure 6 is the side view of a further solution of the present invention;

[0025] Figure 7 is the perspective view of a further solution of the present invention;

[0026] Figure 8 is the front view of a further solution of the present invention;

[0027] Figure 9 is the side view of a further solution of the present invention;

[0028] Figure 10 is the front view of a further solution of the present invention;

[0029] Figure 11 is the schematic diagram of the active state of a further solution of the present invention;

[0030] Figure 12 is the front view of a further solution of the present invention;

[0031] Figure 13 is the front view of a further solution of the present invention;

[0032] Figure 14 is the side view of a further solution of the present invention.

[0033] 1 Friction device, 2 Detector, 3 Claw skeleton, 4 Large roller, 5 Small roller, 6 Rubber ring, 7 Lock groove, 8 Movable lock rod, 9 Rotating shaft, 10 Hollow, 11 Clutch mechanism, 100 Vegetable and fruit sample, 200 Roller group. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without any creative work belong to the scope of protection of the present invention.

[0035] The following will be combined with Figures 1 to 4 Describe a sorting claw structure for fruits and vegetables of the present invention, including a friction device 1, a detector 2, a locking mechanism, and a claw skeleton 3. The claw skeleton 3 is installed on a production line (not shown in the figure) and can deflect up and down. The fixed end at the right end of the claw skeleton 3 is hinged to the production line and travels along with the production line. Specifically, a rotating shaft 9 is installed at the fixed end of the right end of the claw skeleton 3, and the claw skeleton 3 is hinged to the production line through the rotating shaft 9, so that the deflecting end at the left end of the claw skeleton 3 can be turned up and down. The deflecting end at the left end of the claw skeleton 3 is used to support the fruit and vegetable sample 100 upward. At the same time, a roller group 200 is movably installed at the deflecting end of the claw skeleton 3. When the fruit and vegetable sample 100 is supported at the left end of the claw skeleton 3, the roller group 200 abuts against the surface of the fruit and vegetable sample 100, and the roller group 200 can be turned up and down along with the deflecting end of the claw skeleton 3. In addition, a locking mechanism is also installed on the production line to lock the claw skeleton 3, so that the claw skeleton 3 and the roller group 200 will not deflect downward and can stably support the fruit and vegetable sample 100 upward. Then, the friction device 1 is fixedly arranged and has a certain length. In this embodiment, the friction device 1 is a small section and is distributed on the traveling track of the production line and does not travel along with the production line. When the roller group 200 passes through the friction device 1 along with the traveling claw skeleton 3, the roller group 200 will rub against the friction device 1 and rotate. In addition, the claw skeleton 3 can drive the fruit and vegetable sample 100 to pass by and approach the detection end of the detector 2.

[0036] When the present invention is in use, its pawl skeleton 3 is hinged to an assembly line (not shown in the figure) through its fixed end. Therefore, the pawl skeleton 3 can move forward together with the assembly line. Since the pawl skeleton 3 can deflect up and down, when the locking mechanism locks the pawl skeleton 3, the deflecting end of the pawl skeleton 3 will not deflect downward. At this time, the deflecting end of the pawl skeleton 3 can stably support the fruit and vegetable samples upward, and the work of loading and transporting the fruit and vegetable samples can be realized; when discharging is required, as long as the locking mechanism is controlled to release the locking of the pawl skeleton 3, the deflecting end of the pawl skeleton 3 will deflect downward due to its own weight, and the supported fruit and vegetable samples will also be unloaded, realizing the discharging work; in addition, the pawl skeleton 3 can drive the sample to pass by and approach the detection end of the detector 2. That is to say, the detector 2 and the detection end are fixedly arranged and will not rotate with the assembly line. When the pawl skeleton 3 moves forward with the assembly line, the fruit and vegetable samples can pass by the detection end of the detector 2. Therefore, the quality detection of the fruit and vegetable samples can be realized; at the same time, since a roller group 200 for abutting against the surface of the fruit and vegetable samples is movably arranged at the deflecting end of the pawl skeleton 3, and since the roller group 200 rotates due to mutual friction with the friction device 1 when passing by the friction device 1 along with the advancing pawl skeleton 3. That is to say, the friction device 1 is fixedly arranged and will not rotate with the assembly line. When the roller group 200 moves forward on the assembly line with the pawl skeleton 3, when the roller group 200 passes by the friction device 1 for a moment, through mutual friction with the friction device 1, the roller group 200 will be prompted to rotate, so that the roller group 200 will drive the fruit and vegetable samples to rotate instantaneously. In the appearance detection section, by rotating the fruit and vegetable samples, it is convenient for the CCD to collect the complete external information of the fruit and vegetable samples. In the internal detection section, in this way, in cooperation with the existing posture photographed by the CCD, the posture of the fruit and vegetable samples is actuated and adjusted through the roller group 200, and the samples with random postures during loading are adjusted into a unified posture as much as possible. Therefore, each fruit and vegetable sample can pass by the detection end of the detector 2 in a unified posture, enabling the detector 2 to detect the fruit and vegetable samples in a unified posture, so that the detection process has consistency, the detection effect is better, and this detection method also effectively avoids collisions between the fruit and vegetable samples during transportation. Therefore, a fruit and vegetable sorting pawl structure of the present invention can consistently realize the processes of loading, transporting, detecting, and discharging the fruit and vegetable samples on the assembly line, and has a good detection effect and can avoid mutual collisions between the fruits and vegetables during transportation.

[0037] Specifically, in combination with Figures 5 to 7As shown in the figure, a supporting portion 31 for supporting the sample and bending and sinking downward is formed at the bottom of the claw support frame 3. An aisle 32 is formed in the supporting portion 31 and extends through along the traveling direction of the claw support frame 3 and is connected upward to the sample. The detection end of the detector 2 penetrates into the supporting portion 31 through the aisle 32 and approaches the sample passing by the detector 2. In this embodiment, the detection end of the detector 2 is an optical fiber detection head. That is to say, when the fruit and vegetable sample 100 is placed in the supporting portion 31 of the claw support frame 3, since the supporting portion 31 bends and sinks downward, the distance between the optical fiber detection head of the detector 2 and the fruit and vegetable sample 100 can be shortened, reducing the interference of external stray light, ensuring the detection accuracy, and since the aisle 32 is formed in the supporting portion 31, the aisle 32 extends through along the traveling direction of the claw support frame 3, and at the same time the aisle 32 is also connected upward to the fruit and vegetable sample 100. Therefore, when the traveling claw support frame 3 passes by the detector 2, the optical fiber detection head of the detector 2 can pass through the aisle 32 unobstructed and can detect the fruit and vegetable sample 100 upward at the same time. Therefore, the detection process is extremely smooth.

[0038] Specifically, the roller group 200 includes four rollers that operate independently. The four rollers can respectively abut against the fruit and vegetable sample 100 upward from four points at the bottom of the fruit and vegetable sample 100. On the one hand, it can support the fruit and vegetable sample 100 more stably. On the other hand, each independently operating roller can drive the fruit and vegetable sample 100 to rotate from multiple points at the same time, making the rotation of the fruit and vegetable sample 100 more stable.

[0039] Furthermore, in combination with Figures 8 to 9 As shown in the figure, the four rollers respectively include two large rollers 4 and two small rollers 5. The two large rollers 4 are located in front of the two small rollers 5 and the horizontal heights of the two small rollers 5 are respectively higher than those of the large rollers 4. The large rollers 4 pass by the friction device 1 along with the traveling claw support frame 3 and rotate by rubbing against the friction device 1. That is to say, the four rollers are arranged with the front lower and the rear higher, and driven by the friction of the friction device 1, the front large roller 4 is the driving wheel and actively pushes the fruit and vegetable sample 100 to rotate, and the rear small roller 5 is the driven wheel, allowing the fruit and vegetable sample to rotate along the small roller 5. During the feeding process, since the speed of the fruit and vegetable sample is less than the traveling speed of the assembly line, when the fruit and vegetable sample 100 is put on the roller group 200, due to the faster speed of the assembly line, the fruit and vegetable sample 100 will tend to move backward due to inertia. By raising the two small rollers 5 at the rear, it can effectively prevent the fruit and vegetable sample 100 from falling from the rear.

[0040] Preferably, rubber rings 6 are respectively sleeved on the outer circumferences of the large rollers 4 and the small rollers 5. Therefore, it can prevent the outer rings of the large rollers 4 and the small rollers 5 from making rigid contact with the fruit and vegetable sample 100. After buffering by the rubber rings 6, it can avoid bruising the fruit and vegetable sample.

[0041] Furthermore, asFigures 10 to 11 As shown, the locking mechanism includes a locking groove 7 and a movable locking rod 8. The locking groove 7 is formed on the right side of the pawl skeleton 3, and the movable locking rod 8 is buckled in the locking groove 7. Therefore, through the mutual buckling of the movable locking rod 8 and the locking groove 7, the pawl skeleton 3 and the roller group 200 can be kept in a stable supporting state to stably support the fruit and vegetable sample 100 above. When discharging is required, such as Figure 3 As shown, as long as the movable locking rod 8 is controlled to leave the locking groove 7, the entire pawl skeleton 3 will drive the roller group 200 to turn downward together, so that the fruit and vegetable sample 100 can be quickly unloaded, realizing rapid blanking.

[0042] Specifically, as Figure 12 As shown, a turning frame 33 is provided on the right side of the pawl skeleton 3. The locking groove 7 and the rotating shaft 9 are respectively arranged in the turning frame 33. A push arm 34 extending downward is provided on the outside of the turning frame 33. An elastic cross beam 35 is arranged in the turning frame 33. The two ends of the elastic cross beam 35 are respectively connected to the rotating shaft 9 and the push arm 34. It further includes a triggering mechanism (not shown in the figure). By triggering upward to push the push arm 34, the right end of the elastic cross beam 35 can be driven to deform upward, so that the turning frame 33 drives the locking groove 7 to move upward, thereby pushing the locking groove 7 in the turning frame 33 upward to leave the locking rod 8, causing the entire pawl skeleton 3 to turn and realizing the discharging action.

[0043] Optionally, as Figures 13 to 14 As shown, in this embodiment, the friction device 1 includes two movable belts 11 with controllable speeds and independent movements. The two large rollers 4 respectively generate independent rotations by rubbing against different movable belts 11. On the one hand, when the traveling speed of the assembly line is too fast, the rotation speed of the large roller 4 can be controlled by controlling the movement speed of the movable belt 11, so that the rotation speed of the fruit and vegetable sample 100 can be controlled, avoiding damage to the surface of the fruit and vegetable sample 100 due to the too fast rotation of the large roller 4; on the other hand, by controlling the two large rollers 4 respectively with two different movable belts 11, the two large rollers 4 can have independent and different rotation speeds, and the two large rollers 4 can respectively generate different pushing speeds on the fruit and vegetable sample 100, so that they can be adjusted separately according to the actual situation, and the posture of the fruit and vegetable sample 100 can be adjusted more flexibly.

[0044] Optionally, in this embodiment, it further includes two clutch mechanisms 12. The two movable belts 11 are respectively connected to the two clutch mechanisms 12. By controlling the two clutch mechanisms 12 to respectively make the respective movable belts 11 leave or abut against the large rollers 4, the control is more flexible and the controllability of the two large rollers 4 is stronger.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vegetable and fruit sorting claw structure, characterized in that, It includes a friction device (1), a detector (2), a locking mechanism, and an up-and-down deflectable pawl skeleton (3). The fixed end of the pawl skeleton (3) is used for hinging on the production line and advancing with the production line. The deflectable end of the pawl skeleton (3) is used for supporting the sample, and a roller group for abutting against the surface of the sample is movably arranged thereon. The locking mechanism locks the pawl skeleton (3). The roller group passes through the friction device (1) along with the advancing pawl skeleton (3) and rotates by rubbing against the friction device (1). The pawl skeleton (3) can drive the sample to pass through and approach the detection end of the detector (2). The roller group includes four rollers that operate independently. The four rollers are used to abut against the sample from four points upward at the bottom of the sample. The four rollers respectively include two large rollers (4) and two small rollers (5). The two large rollers (4) are located in front of the two small rollers (5), and the horizontal heights of the two small rollers (5) are respectively higher than those of the large rollers (4). The large rollers (4) pass through the friction device (1) along with the advancing pawl skeleton (3) and rotate by rubbing against the friction device (1). A supporting portion (31) for supporting the sample and bending and sinking downward is formed at the bottom of the pawl skeleton (3). A passage (32) that extends through along the advancing direction of the pawl skeleton (3) and communicates with the sample upward is formed in the supporting portion (31). The detection end of the detector (2) penetrates into the supporting portion (31) through the passage (32) and approaches the sample passing by the detector (2).

2. The vegetable and fruit sorting claw structure according to claim 1, characterized in that, Rubber rings (6) are respectively arranged on the outer peripheries of the large rollers (4) and the small rollers (5).

3. The vegetable and fruit sorting claw structure according to claim 1, characterized in that, The locking mechanism includes a lock groove (7) and a lock rod (8). The lock groove (7) is formed on one side of the pawl skeleton (3), and the lock rod (8) is buckled in the lock groove (7).

4. The vegetable and fruit sorting claw structure according to claim 3, characterized in that, A rotating shaft (9) is arranged at the fixed end of the pawl skeleton (3), and the pawl skeleton (3) is hinged on the production line through the rotating shaft (9).

5. The vegetable and fruit sorting claw structure according to claim 4, characterized in that, A flipping frame (33) is arranged on one side of the pawl skeleton (3). The lock groove (7) and the rotating shaft (9) are respectively arranged in the flipping frame (33). A pushing arm (34) extending downward is arranged on the outer side of the flipping frame (33). An elastic cross beam (35) is arranged in the flipping frame (33). The two ends of the elastic cross beam (35) are respectively connected to the rotating shaft (9) and the pushing arm (34). It further includes a triggering mechanism. The triggering mechanism drives the elastic cross beam (35) to deform upward by pushing the pushing arm (34) upward to push the lock groove (7) in the flipping frame (33) to move upward away from the lock rod (8).

6. The vegetable and fruit sorting claw structure according to claim 1, characterized in that, The friction device (1) includes at least two movable belts (11) with controllable speeds and independent movements. The two large rollers (4) respectively rotate independently by rubbing against different movable belts (11).

7. The vegetable and fruit sorting claw structure according to claim 6, characterized in that, It further includes a plurality of clutch mechanisms (12), each of the movable belts (11) is respectively connected to each of the clutch mechanisms (12), and each of the movable belts (11) is respectively controlled by each of the clutch mechanisms (12) to leave or abut against the large roller (4).

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