Semi-automatic crab cheliped strapping machine

Abstract

The semi-automatic crab cheliped strapping machine comprises a shell (1) and is characterized in that a cutting mechanism (2), a conveying mechanism (3) and a strapping mechanism (4) are arranged in the shell (1), the cutting mechanism (2) and the strapping mechanism (4) are both located in the working range of the conveying mechanism (3), an operation opening (5) is formed in the shell (1), a pair of operation sensors (6) is arranged on the outer wall of the shell (1), and the operation sensors (6) are arranged on the outer wall of the shell (1). The pair of operation sensors (6) are symmetrically distributed on the left side and the right side of the operation opening (5).

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aquatic product processing equipment, in particular to a semi-automatic crab claw bundling machine. BACKGROUND

[0002] In the process of crab catching and selling, in order to prevent the crab from attacking each other and causing leg breakage or death, it is necessary to bundle its claws. The current crab claw bundling generally adopts manual operation, which has the following problems: Low efficiency: Even skilled workers can only bundle a few crabs per minute, and the labor intensity is high.

[0003] High risk: The operator is easily injured by the crab pincers during operation.

[0004] Uneven bundling quality: The tightness of manual bundling is difficult to unify, and if it is too tight, it will easily cause damage to the crab, and if it is too loose, it will easily fall off.

[0005] High cost: Depend on skilled workers, and the labor cost is increasing.

[0006] Therefore, there is a need for a method or device that can solve the above problems. SUMMARY

[0007] The present application is to solve the above problems existing in the prior art, and proposes a semi-automatic device with simple structure, ingenious design and reasonable layout, which can efficiently and safely complete the bundling of crab claws, and also can ensure the bundling quality.

[0008] The technical solution of the present application is: a semi-automatic crab claw bundling machine, comprising a shell 1, characterized in that: the shell 1 is provided with a cutting mechanism 2, a conveying mechanism 3 and a bundling mechanism 4, the cutting mechanism 2 and the bundling mechanism 4 are both in the working range of the conveying mechanism 3, an operating port 5 is formed on the shell 1, and a pair of operation sensors 6 are arranged on the outer wall of the shell 1, which are symmetrically distributed on the left and right sides of the operating port 5.

[0009] The cutting mechanism 2 comprises a first support frame fixedly connected with the shell 1, a feeding motor 7 is arranged on the first support frame, a feeding driving tooth 8 is arranged on the working end of the feeding motor 7, the feeding driving tooth 8 is engaged with a first gear 9, a second gear 10 engaged with the first gear 9 is arranged below the first gear 9, a rotating shaft on which the first gear 9 is arranged is rotatably connected with the first support frame, and a third gear is arranged on the rotating shaft, a rotating shaft on which the second gear 10 is arranged is rotatably connected with the first support frame, and a fourth gear below the third gear is arranged on the rotating shaft, there is a gap between the third gear and the fourth gear, a feeding pipe 11 is arranged on the first support frame, the inlet end of the feeding pipe 11 is arranged on the surface of the shell 1, and the third gear and the fourth gear are arranged at the outlet end of the feeding pipe 11, A cutting motor 12 is arranged on the top of the first support frame, the working end of the cutting motor 12 is connected with an eccentric disc 13, an eccentric shaft 14 is arranged at the eccentric position of the eccentric disc 13, the eccentric shaft 14 is rotatably connected with the top end of a first connecting rod 15, the bottom end of the first connecting rod 15 is rotatably connected with a connecting shaft 17 arranged on a sliding plate 16, the sliding plate 16 is slidably connected with the first support frame, and a cutter 18 is arranged at the bottom of the sliding plate 16, a pressing plate 19 is also arranged on the first support frame, a cutting opening 20 is arranged on the pressing plate 19, and the cutter 18 is arranged at the cutting opening 20.

[0010] The inlet end of the feeding pipe 11 is provided with a horn-shaped feeding port 21, and the feeding port 21 is opposite to the opening arranged on the shell 1.

[0011] The conveying mechanism 3 comprises a second support frame fixedly connected with the shell 1, a rack 22 is slidably connected with the second support frame, the rack 22 is arranged on a conveying sliding frame 23, a conveying motor 24 is also arranged on the second support frame, a gear on the working end of the conveying motor 24 is engaged with the rack 22, a spring pin housing 25 is arranged on the sliding frame 23, and a spring pin 26 is arranged in the spring pin housing 25.

[0012] The second support frame is provided with a first sensor 27 and a second sensor 28, and the sliding frame 23 is provided with a trigger piece 29 capable of triggering the two sensors respectively.

[0013] The bundling mechanism 4 comprises a third support frame fixedly connected in the shell 1, a feeding motor 30 is arranged on the third support frame, a driving wheel 31 is arranged on the working end of the feeding motor 30, a driven wheel is rotatably supported on the third support frame, the driving wheel 31 and the driven wheel are jointly wound with a feeding belt 32, a sliding platform 33 is slidably connected with the third support frame, the sliding platform 33 is fixedly connected with the feeding belt 32, The sliding platform 33 is provided with a clamping jaw motor 34, the working end of the clamping jaw motor 34 is provided with a clamping jaw driving tooth 35, the clamping jaw driving tooth 35 is in mesh with a clamping jaw rack 36, the clamping jaw rack 36 is slidingly connected on a longitudinal support plate 37 provided at the end of the sliding platform 33, the bottom end of the clamping jaw rack 36 is connected with a vertical sliding plate 38, the bottom end of the vertical sliding plate 38 is provided with an upper clamping jaw 39, the two sides of the vertical sliding plate 38 are symmetrically hinged with a second connecting rod 40, the other end of the second connecting rod 40 is rotatably connected with the top end of a swing frame 41, the swing frame 41 is rotatably connected on the longitudinal support plate 37 through a clamping jaw rotating shaft 42, the free end of the swing frame 41 is provided with a lower clamping jaw 43, the upper clamping jaw 39 and the two lower clamping jaws 43 are close together to form a clamping jaw circular platform, the end of the clamping jaw circular platform is further provided with a column 44 matched with the spring pin 26.

[0014] The third support frame is provided with a third sensor 45, the sliding platform 33 is provided with a trigger piece 29 capable of triggering the third sensor 45, The longitudinal support plate 37 is provided with a fourth sensor 46 and a fifth sensor 47, and the connecting lines between the two sensors are longitudinally distributed, the vertical sliding plate 38 is provided with a trigger piece 29 capable of triggering the fourth sensor 46 and the fifth sensor 47 respectively.

[0015] The operation port 5 is an equilateral triangle opening, a baffle 49 fixedly connected inside the shell 1 is arranged in the operation port 5, the inner hole profile of the baffle 49 protrudes from the edge of the operation port 5, and meanwhile the baffle 49 is further provided with three relief grooves 50 corresponding to the three vertices of the operation port 5 respectively.

[0016] The first support frame is provided with a sixth sensor 48, the eccentric disc 13 is provided with a trigger piece 29 capable of triggering the sixth sensor 48.

[0017] Compared with the prior art, the present application has the following advantages: The semi-automatic crab chelae binding machine has the advantages of simple structure, ingenious design, reasonable layout, special structure, cutting mechanism, conveying mechanism and binding mechanism in the shell, rubber ring cutting from the rubber tube by the cutting mechanism, rubber ring conveying to the binding mechanism by the conveying mechanism, feeding action of the binding mechanism, rubber ring passing through the operating port in the expanded state, rubber ring left on the crab chelae previously placed in the operating port by the retreat of the clamping jaw in the binding mechanism, semi-automatic binding operation, high work efficiency, high safety, low risk of operator injury, consistent tightness of each binding operation, no damage to the crab itself due to tight binding, no rubber ring falling due to loose binding, consideration of the survival rate of crabs and the quality of goods, direct cutting of rubber rings from rubber tubes, and large cost saving compared with the direct purchase of rubber rings.

[0018] In summary, the binding machine has many advantages, is particularly suitable for popularization and application in the field, and has a very broad market prospect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0020] Figure 2 is a schematic diagram of the structure of the cutting mechanism in the embodiment of the present application (direction one).

[0021] Figure 3 is a schematic diagram of the structure of the cutting mechanism in the embodiment of the present application (direction two).

[0022] Figure 4 is a schematic diagram of the structure of the conveying mechanism in the embodiment of the present application (direction one).

[0023] Figure 5 is a schematic diagram of the structure of the conveying mechanism in the embodiment of the present application (direction two).

[0024] Figure 6 is a schematic diagram of the structure of the binding mechanism in the embodiment of the present application (direction one).

[0025] Figure 7 is a schematic diagram of the structure of the binding mechanism in the embodiment of the present application (direction two).

[0026] Figure 8 is a schematic diagram of the structure of the operating port and the blocking piece in the embodiment of the present application. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be described below with reference to the accompanying drawings. As shown in the drawings: Figures 1 to 8 A semi-automatic crab pincers bundling machine comprises a shell 1 as a base, a cutting mechanism 2, a conveying mechanism 3 and a bundling mechanism 4 are arranged in the shell 1, the cutting mechanism 2 and the bundling mechanism 4 are both in the working range of the conveying mechanism 3, an operating port 5 is formed on the shell 1, and a pair of operating sensors 6 are arranged on the outer wall of the shell 1 and symmetrically distributed on the left and right sides of the operating port 5.

[0028] The cutting mechanism 2 comprises a first support frame fixedly connected with the shell 1, a feeding motor 7 is arranged on the first support frame, a feeding driving tooth 8 is arranged on the working end of the feeding motor 7, the feeding driving tooth 8 is engaged with a first gear 9, a second gear 10 engaged with the first gear 9 is arranged below the first gear 9, a rotating shaft on which the first gear 9 is arranged is rotatably connected with the first support frame, a third gear is arranged on the rotating shaft, a rotating shaft on which the second gear 10 is arranged is rotatably connected with the first support frame, a fourth gear below the third gear is arranged on the rotating shaft, and a gap exists between the third gear and the fourth gear, a feeding pipe 11 is arranged on the first support frame, the inlet end of the feeding pipe 11 is arranged on the surface of the shell 1, and the third gear and the fourth gear are arranged at the outlet end of the feeding pipe 11. A cutting motor 12 is arranged on the top of the first support frame, the working end of the cutting motor 12 is connected with an eccentric disc 13, an eccentric shaft 14 is arranged at the eccentric position of the eccentric disc 13, the eccentric shaft 14 is rotatably connected with the top end of a first connecting rod 15, the bottom end of the first connecting rod 15 is rotatably connected with a connecting shaft 17 arranged on a sliding plate 16, the sliding plate 16 is slidably connected with the first support frame, a cutter 18 is arranged on the bottom of the sliding plate 16, and a pressing plate 19 is also arranged on the first support frame, a cutting port 20 is formed on the pressing plate 19, and the cutter 18 is arranged at the cutting port 20.

[0029] The inlet end of the feeding pipe 11 is provided with a horn-shaped feeding port 21, and the feeding port 21 is opposite to the opening formed on the shell 1.

[0030] The conveying mechanism 3 comprises a second support frame fixedly connected with the shell 1, a rack 22 is slidably connected with the second support frame, the rack 22 is arranged on a conveying sliding frame 23, a conveying motor 24 is also arranged on the second support frame, the gear on the working end of the conveying motor 24 is engaged with the rack 22, a spring pin housing 25 is arranged on the sliding frame 23, and a spring pin 26 is arranged in the spring pin housing 25.

[0031] The first sensor 27 and the second sensor 28 are arranged on the second support frame, and the trigger piece 29 capable of triggering the two sensors respectively is arranged on the sliding frame 23.

[0032] The bundling mechanism 4 comprises a third support frame fixedly connected in the shell 1, a feeding motor 30 is arranged on the third support frame, a driving wheel 31 is arranged on the working end of the feeding motor 30, a driven wheel is rotatably supported on the third support frame, the driving wheel 31 and the driven wheel are jointly wound with a feeding belt 32, and a sliding platform 33 is slidably connected on the third support frame, and the sliding platform 33 is fixedly connected with the feeding belt 32, A clamping jaw motor 34 is arranged on the sliding platform 33, a clamping jaw driving tooth 35 is arranged on the working end of the clamping jaw motor 34, the clamping jaw driving tooth 35 is in meshing connection with a clamping jaw rack 36, the clamping jaw rack 36 is slidably connected on a longitudinal support plate 37 arranged at the end of the sliding platform 33, the bottom end of the clamping jaw rack 36 is connected with a vertical sliding plate 38, the bottom end of the vertical sliding plate 38 is provided with an upper clamping jaw 39, the two sides of the vertical sliding plate 38 are symmetrically hinged with a second connecting rod 40, the other end of the second connecting rod 40 is rotatably connected with the top end of a swing frame 41, and the swing frame 41 is rotatably connected on the longitudinal support plate 37 through a clamping jaw rotating shaft 42, the free end of the swing frame 41 is provided with a lower clamping jaw 43, and when the upper clamping jaw 39 and the two lower clamping jaws 43 are close together, a clamping jaw circular table is formed, and the end of the clamping jaw circular table is provided with a column 44 matched with the spring pin 26.

[0033] A third sensor 45 is arranged on the third support frame, and a trigger piece 29 capable of triggering the third sensor 45 is arranged on the sliding platform 33. A fourth sensor 46 and a fifth sensor 47 are arranged on the longitudinal support plate 37, and the connecting lines between the two sensors are longitudinally distributed, and a trigger piece 29 capable of triggering the fourth sensor 46 and the fifth sensor 47 respectively is arranged on the vertical sliding plate 38.

[0034] The operation port 5 is an equilateral triangular opening, a baffle 49 fixedly connected inside the shell 1 is arranged in the operation port 5, the inner hole profile of the baffle 49 protrudes from the edge of the operation port 5, and three relief grooves 50 corresponding to the three vertices of the operation port 5 are further arranged on the baffle 49.

[0035] A sixth sensor 48 is arranged on the first support frame, and a trigger piece 29 capable of triggering the sixth sensor 48 is arranged on the eccentric disc 13.

[0036] The working process of the semi-automatic crab claw binding machine in this embodiment of the invention is as follows: The elastic rubber tube is fed into the feed port 21 through the opening on the back side of the shell 1, that is, the elastic rubber tube is fed into the cutting mechanism 2, which cuts it into rubber rings of a certain width. The cut rubber rings are taken away by the conveying mechanism 3. The conveying mechanism 3 drives the rubber rings to the binding mechanism 4 and transfers the rubber rings to the robotic arm in the binding mechanism 4. Then the conveying mechanism 3 moves away and makes way, and the binding mechanism 4 makes a feeding action, sending the rubber rings in the contracted state out through the operating port 5. Then the robotic arm opens, driving the rubber rings to expand. At this time, the operator only needs to place the crab claws at the operating port 5. When the operating sensors on the left and right sides of the operating port 5 detect the presence of the claws, they will send a signal to the control system of this device. The control system controls the binding mechanism to retreat. The robotic arm, in conjunction with the stop block mechanism set at the operating port 5, allows the rubber rings to detach from the robotic arm. After detachment, the rubber rings automatically retract and are tied tightly to the outside of the claws, thereby realizing the automatic binding operation of the crab claws. The cutting mechanism 2 operates as follows: After the rubber tube enters the feeding pipe 11 through the inlet 21, its end moves into the gap between the third gear and the fourth gear (the outlet end of the feeding pipe 11 is designed as a flat opening, which allows the rubber tube to be deformed into a flat opening and ensures that it can enter the gap). The feeding motor 7 works intermittently, driving the first gear 9 to rotate stepwise through the feeding drive gear 8, thereby realizing the stepwise rotation of the second gear 10. Therefore, the shaft where the first gear 9 is located and the shaft where the second gear 10 is located will also make corresponding rotational movements, thereby driving the third gear and the fourth gear to rotate. Every time the third gear and the fourth gear rotate a certain angle, they will drive the rubber tube to advance a certain distance (this distance is the final thickness of the rubber ring). At the same time, the cutting motor 12 drives the eccentric disk 13 to rotate. Every time the eccentric disk 13 rotates once, it will drive the slide plate 16 to reciprocate once in the vertical direction through the first connecting rod 15. That is, the cutter 18 will make a cutting action once. When the end of the rubber tube enters the cutting port 20, the cutter 18 moves upward and makes a cutting action to cut off the rubber tube located at the cutting port 20, thus completing the cutting of the rubber ring. During the above-mentioned operation, the trigger plate 29 on the eccentric disk 13 will trigger the sixth sensor 48 once for each rotation of the eccentric disk 13. The control system can determine whether the cutting mechanism 2 has completed the cutting action by the signal sent by the sixth sensor 48, thereby controlling the conveying mechanism 3 to receive the cut rubber ring. The working process of the conveying mechanism 3 is as follows: in the initial state, the spring pin 26 is located at a position corresponding to the cutting port 20, and the cut rubber ring naturally falls onto the spring pin 26; when the control system detects that the cutting mechanism 2 has made a cutting action, it is indicated that there is a rubber ring on the spring pin 26, and the control system sends a signal to the conveying mechanism 3, the conveying motor 24 in the conveying mechanism 3 is actuated, the rack 22 and the carriage 23 connected with the rack 22 are driven to move relative to the second support frame through the gear on the working end of the conveying motor 24, the movement of the carriage 23 conveys the spring pin housing 25, the spring pin 26 and the rubber ring on the spring pin 26 to the bundling mechanism 4, specifically to the clamping jaw of the bundling mechanism 4, When the spring pin 26 moves to the position, the second sensor 28 is triggered by the trigger piece 29, and after the control system receives the signal of the second sensor 28, the bundling mechanism 4 is controlled to act, and the clamping jaw of the bundling mechanism 4 takes the rubber ring off the spring pin 26, and after the action is completed, the rack 22 is reversely slid to the initial position under the drive of the conveying motor 24, at this time, the first sensor 27 is triggered by the trigger piece 29, and the control system sends a signal to the cutting mechanism 2, and the cutting mechanism 2 can cut the rubber ring; The working process of the bundling mechanism 4 is as follows: when the bundling mechanism 4 receives the signal of the control system, the feed motor 30 is first actuated to drive the belt 32 to move through the driving wheel 31, thereby realizing the movement of the sliding platform 33 and all mechanisms thereon, at this time, all the clamping jaws are in the parallel state, and the column body 44 at the end of the clamping jaw circular table moves towards the spring pin 26 and extrudes the spring pin 26 into the spring pin housing 25, during the process, the rubber ring originally hung on the spring pin 26 is transferred to the column body 44, After the sliding platform 33 makes a feeding action (realizing the transfer of the rubber ring), it retreats again to avoid the movement space of the conveying mechanism 3, at this time, the spring pin 26 pops out again, and the conveying motor 24 in the conveying mechanism 3 is actuated to drive the carriage 23 to return to the initial position, waiting for the next material receiving operation; In the above process, whether the feeding action of the sliding platform 33 is completed can be judged by whether the third sensor 45 is triggered by the trigger piece 29 on the sliding platform 33; When the first sensor 27 is triggered by the trigger plate 29, it indicates that the carriage 23 has returned to its initial position. At this time, the control system will control the sliding platform 33 to perform a feeding action again. The robotic arm composed of three grippers will drive the rubber ring into the operating port 5. Then, the gripper motor 34 will work, driving the gripper rack 36 to move upward through the gripper drive tooth 35, which in turn drives the vertical slide plate 38 to move upward relative to the longitudinal support plate 37. The movement of the vertical slide plate 36 will first directly drive the upper gripper 39 at its bottom to move upward, and at the same time, it will also drive... The second link 40, which is hinged to it, moves, pulling the swing frame 41 to swing around the gripper shaft 42, thereby realizing the movement of the two lower grippers 43. That is, when the gripper rack 36 moves upward, all three grippers move outward at the same time, and the robot arm opens (conversely, when the gripper rack 36 moves downward, all three grippers move inward at the same time, and the robot arm closes). In the above process, by judging the specific situation of the fourth sensor 46 or the fifth sensor 47 being triggered by the trigger piece 29, the current state of the robot arm can be determined. The longitudinal support plate 37 is provided with a fourth sensor 46 and a fifth sensor 47, and the connection between the two sensors is longitudinally distributed. The vertical slide plate 38 is provided with a trigger piece 29 that can trigger the fourth sensor 46 and the fifth sensor 47 respectively.

[0037] After the robotic arm opens, it will expand the rubber ring. At this time, the rubber ring is located outside the operating port 5 and the baffle 49 (i.e., outside the housing 1). At the same time, the column 44 at the end of each gripper will enter the corresponding relief groove 50 on the baffle 49. The staff places the crab's claws into the operating port 5. When the operating sensor 6 detects that the claws are in place, it sends a signal to the control system. The control system controls the sliding platform 33 to move backward as a whole (during this process, the robotic arm remains open). The column 44 is pulled out directly from the clearance groove 50. However, the rubber ring is blocked by the part of the baffle 49 that protrudes from the edge of the operating port 5 and cannot move backward with the column 44. When the column 44 separates from the rubber ring, the rubber ring automatically contracts under its own elasticity and is tied to the crab's claws located at the operating port 5. By repeating the above process, a semi-automatic binding operation of the crab's claws can be achieved.

Claims

1. A semi-automatic crab claw binding machine, comprising a shell (1), characterized in that: The housing (1) is provided with a cutting mechanism (2), a conveying mechanism (3) and a binding mechanism (4). The cutting mechanism (2) and the binding mechanism (4) are both within the working range of the conveying mechanism (3). An operation port (5) is provided on the housing (1). A pair of operation sensors (6) are provided on the outer wall of the housing (1). The pair of operation sensors (6) are symmetrically distributed on the left and right sides of the operation port (5).

2. The semi-automatic crab claw binding machine according to claim 1, characterized in that: The cutting mechanism (2) includes a first support frame fixedly connected to the housing (1). A feeding motor (7) is provided on the first support frame. The working end of the feeding motor (7) is provided with a feeding drive tooth (8). The feeding drive tooth (8) meshes with a first gear (9). A second gear (10) meshes with the first gear (9) below it. The shaft on which the first gear (9) is located is rotatably connected to the first support frame. At the same time, a third gear is provided on the shaft. The shaft on which the second gear (10) is located is rotatably connected to the first support frame. At the same time, a fourth gear is provided on the shaft below the third gear. There is a gap between the third gear and the fourth gear. A feeding pipe (11) is provided on the first support frame. The inlet end of the feeding pipe (11) is located on the surface of the housing (1). The third gear and the fourth gear are located at the outlet end of the feeding pipe (11). A cutting motor (12) is provided on the top of the first support frame. The working end of the cutting motor (12) is connected to the eccentric disk (13). An eccentric shaft (14) is provided at the eccentric position of the eccentric disk (13). The eccentric shaft (14) is rotatably connected to the top end of the first connecting rod (15). The bottom end of the first connecting rod (15) is rotatably connected to the connecting shaft (17) provided on the slide plate (16). The slide plate (16) is slidably connected to the first support frame, and a cutter (18) is provided at its bottom. A pressure plate (19) is also provided on the first support frame. A cutting port (20) is opened on the pressure plate (19), and the cutter (18) is located at the cutting port (20).

3. The semi-automatic crab claw binding machine according to claim 2, characterized in that: The feed pipe (11) has a horn-shaped feed port (21) at its inlet end, which is opposite to the opening on the housing (1).

4. The semi-automatic crab claw binding machine according to claim 1, characterized in that: The conveying mechanism (3) includes a second support frame fixedly connected to the housing (1), a rack (22) slidably connected on the second support frame, the rack (22) being located on the conveying slide (23), a conveying motor (24) is also provided on the second support frame, the gear on the working end of the conveying motor (24) meshes with the rack (22), a spring pin housing (25) is provided on the slide (23), and a spring pin (26) is provided inside the spring pin housing (25).

5. The semi-automatic crab claw binding machine according to claim 4, characterized in that: The second support frame is provided with a first sensor (27) and a second sensor (28), and the slide (23) is provided with a trigger piece (29) that can trigger the two sensors respectively.

6. The semi-automatic crab claw binding machine according to claim 1, characterized in that: The binding mechanism (4) includes a third support frame fixedly connected inside the housing (1). A feed motor (30) is provided on the third support frame. A drive wheel (31) is provided at the working end of the feed motor (30). A driven wheel is rotatably supported on the third support frame. A feed belt (32) is wound on both the drive wheel (31) and the driven wheel. A sliding platform (33) is also slidably connected to the third support frame. The sliding platform (33) is fixedly connected to the feed belt (32). The sliding platform (33) is equipped with a gripper motor (34), and the working end of the gripper motor (34) is equipped with a gripper drive tooth (35). The gripper drive tooth (35) meshes with a gripper rack (36). The gripper rack (36) is slidably connected to a longitudinal support plate (37) at the end of the sliding platform (33). The bottom end of the gripper rack (36) is connected to a vertical slide plate (38). The bottom end of the vertical slide plate (38) is equipped with an upper gripper (39). The two sides of the swing frame (41) are symmetrically hinged with a second connecting rod (40). The other end of the second connecting rod (40) is rotatably connected to the top of the swing frame (41). The swing frame (41) is rotatably connected to the longitudinal support plate (37) through the gripper pivot (42). The free end of the swing frame (41) is provided with a lower gripper (43). When the upper gripper (39) and the two lower grippers (43) are closed together, they form a gripper frustum. The end of the gripper frustum is also provided with a column (44) that matches the spring pin (26).

7. The semi-automatic crab claw binding machine according to claim 6, characterized in that: The third support frame is provided with a third sensor (45), and the sliding platform (33) is provided with a trigger piece (29) that can trigger the third sensor (45). The longitudinal support plate (37) is provided with a fourth sensor (46) and a fifth sensor (47), and the connection between the two sensors is longitudinally distributed. The vertical slide plate (38) is provided with a trigger piece (29) that can trigger the fourth sensor (46) and the fifth sensor (47) respectively.

8. The semi-automatic crab claw binding machine according to claim 6, characterized in that: The operating port (5) is an equilateral triangle opening. A baffle (49) is fixedly connected to the inner side of the housing (1) inside the operating port (5). The outline of the inner hole of the baffle (49) protrudes from the edge of the operating port (5). At the same time, the baffle (49) is also provided with three clearance grooves (50) that correspond one-to-one with the three vertices of the operating port (5).

9. The semi-automatic crab claw binding machine according to claim 2, characterized in that: The first support frame is provided with a sixth sensor (48), and the eccentric disk (13) is provided with a trigger piece (29) that can trigger the sixth sensor (48).

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