Crab leg shell cutting machine

Abstract

The utility model relates to the technical field of food material cutting equipment, in particular to a crab leg shell cutting machine which comprises a workbench, a conveying line arranged on the workbench, a cutting mechanism, a connecting rod mechanism, a pressing conveying mechanism and a balance weight mechanism. The two sides of the conveying line are each provided with a connecting rod mechanism, a cutting channel is arranged between the pressing conveying mechanism and the conveying line, and a cutting edge of a cutting knife of the cutting mechanism is arranged in the cutting channel. The two sides of the pressing conveying mechanism and the two sides of the cutting mechanism are fixedly connected to one end of a connecting rod mechanism, and the other end of the connecting rod mechanism is rotationally arranged on the workbench. Each connecting rod mechanism is further provided with a balance weight mechanism used for balancing the self weight of the pressing conveying mechanism and the self weight of the cutting mechanism. And the connecting rod mechanism can synchronously adjust the positions of the pressing conveying mechanism and the cutting knife of the cutting mechanism to adapt to crab legs of different sizes, so that the compatibility and the cutting efficiency of the equipment are improved, the structure is compact, the cost is low, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to food material cutting equipment technical field especially is involved in a crab leg shell cutting machine. BACKGROUND

[0002] Crab meat contains crab body meat and crab leg meat, has the characteristics of delicious taste, high nutritional value, has high economic value, for the convenience of preservation or edible, river crab food processing factory will process crab meat into various products and sell. The structure of the crab leg is a long strip with multiple joints, which is completely different from the structure of the crab body, so the extraction method of the crab body meat and the crab leg meat is completely different. The traditional method of extracting the process of the crab leg meat is to use a round bar by artificial force to roll and press the shell of each crab leg to extract the meat inside the crab leg. Since it is a factory operation, the number of crab legs is very large, and there are problems of low extraction efficiency and high labor intensity.

[0003] The existing crab leg is fixed by the claw assembly, and then the saw blade is driven by the motor to cut the joint of the crab leg, so that the thigh of the crab leg is in a permeable state, which facilitates the air blowing assembly to blow the meat inside the crab leg shell with compressed air. The cost is high, and the cutting efficiency is low. UTILITY MODEL CONTENT

[0004] In order to solve the technical defects in the above background art, the purpose of the utility model is to provide a crab leg shell cutting machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A crab leg shell cutting machine, comprising a workbench, a conveying line arranged on the workbench, a cutting mechanism, a connecting rod mechanism, a pressing conveying mechanism and a counterweight mechanism; one group of the connecting rod mechanisms is arranged on both sides of the conveying line, the pressing conveying mechanism is arranged above the conveying line and presses the upper side of the crab leg to fix the crab leg, a cutting channel is arranged between the pressing conveying mechanism and the conveying line, and the cutting edge of the cutting knife of the cutting mechanism is arranged in the cutting channel; one end of the pressing conveying mechanism and the cutting mechanism is fixedly connected to one group of the connecting rod mechanisms, the other end of the connecting rod mechanism is rotatably arranged on the workbench, and one group of the counterweight mechanisms is arranged on each group of the connecting rod mechanisms to balance the weight of the pressing conveying mechanism and the cutting mechanism.

[0007] By adopting the technical scheme, the crab leg is conveyed by the conveying line, the cutting channel is provided with the conveying line and the pressing conveying mechanism to clamp and fix the crab leg and move the crab leg, the cutting knife at the cutting channel cuts the shell of the crab leg to expose the inside crab meat, the counterweight mechanism is used to offset the weight of the pressing conveying mechanism and the cutting mechanism, the crab leg is conveniently lifted to press the conveying mechanism, the connecting rod mechanism can synchronously adjust the position of the cutting knife of the pressing conveying mechanism and the cutting mechanism to adapt to crab legs of different sizes, thereby improving the compatibility and cutting efficiency of the equipment, the structure is compact, the cost is low, and the equipment is more convenient to use.

[0008] Further, the connecting rod mechanism includes a connecting rod, a pushing rod, a supporting rod, and a fixed rod. The supporting rod is vertically arranged, one end of the supporting rod is fixedly connected with the cutting mechanism, and the other end of the supporting rod is rotatably connected with the connecting rod through the workbench. One end of the connecting rod is connected with one end of the pushing rod, the other end of the pushing rod is connected with one end of the fixed rod, and the other end of the fixed rod is fixed to one side of the pressing conveying mechanism. The counterweight mechanism is fixedly connected with the other end of the supporting rod. The counterweight mechanism gives the connecting rod an upward pulling force to eliminate the weight of the pressing conveying mechanism and the cutting mechanism, so that the crab leg can easily press the pressing conveying mechanism, the connecting rod is swung by the supporting rod and the fixed rod, the cutting knife of the cutting mechanism is lifted up and down to adjust the position of the cutting edge, the transmission efficiency and the accuracy of the relative position adjustment are improved, the cutting edge of the cutting knife is always at the center position of the cutting channel, the reaction is more sensitive, the time is shorter, and the cutting quality and efficiency are improved.

[0009] Further, the other end of the supporting rod is rotatably connected with the center position of the connecting rod, so that the lifting ratio of the counterweight mechanism to the cutting mechanism and the pressing conveying mechanism is 2:1, the structure is more compact, and the space is saved.

[0010] Further, the connecting rod mechanism further includes a synchronous connecting rod, the synchronous connecting rod is fixedly connected with the other end of the two connecting rods, so that the two connecting rod mechanisms are synchronously lifted, the accuracy and stability of the structure linkage are improved, and the cutting quality and efficiency are improved.

[0011] Further, the counterweight mechanism includes a supporting seat, a rotating wheel, a connecting piece, and a counterweight piece. One end of the supporting seat is arranged on the workbench, the other end of the supporting seat is provided with the rotating wheel, one end of the connecting piece is fixedly connected with the other end of the supporting rod, the other end of the connecting piece is wound on the upper circumferential side of the rotating wheel and penetrates through the workbench to be connected with the counterweight piece, the structure is simple, and the cost is saved.

[0012] Further, the cutting mechanism further comprises a fixed seat, a cutting motor, a driving gear and a first transmission wheel assembly. At least one first guide rail is arranged on both sides of the workbench along the conveying direction, both ends of the fixed seat are slidingly arranged on the corresponding first guide rails, and one end of the connecting rod mechanism is fixed to the end of the fixed seat. The cutting motor is fixed to the fixed seat, the output shaft of the cutting motor is fixedly connected with the driving gear, one end of the first transmission wheel assembly is arranged on one side of the driving gear and is in meshing connection, and the other end of the first transmission wheel assembly is fixedly connected with the cutting knife. The structure is stable and the working efficiency is improved.

[0013] Further, the first transmission wheel assembly comprises a plurality of first transmission gears, a first mounting plate and a first transmission rod. The first mounting plate is fixed to the fixed seat, a plurality of first transmission gears are arranged on the lower side of the first mounting plate along the conveying direction, and the first transmission gear near the end along the conveying direction is in meshing connection with the driving gear. Adjacent two first transmission gears are in meshing connection, and the first transmission rod is fixedly connected to one end of the first transmission rod on the first transmission gear far away from the end along the conveying direction, and the other end of the first transmission rod penetrates through the workbench and is connected to the corresponding cutting knife. The meshing connection force transmission is more stable, the structure is simple, and the cost is lower.

[0014] Further, the cutting mechanism further comprises a second transmission wheel assembly. The second transmission wheel assembly is arranged on the other side of the driving gear and is in meshing connection, and the other end of the second transmission wheel assembly is fixedly connected with another cutting knife. One cutting motor synchronously drives the first transmission wheel assembly and the second transmission wheel assembly to rotate to drive the cutting knife to rotate and cut the crab leg, thereby saving cost and making the structure more compact. One cutting knife is arranged on both sides of the cutting channel. Two cutting knives are synchronously cut, and the cutting operation efficiency is higher.

[0015] Further, the cutting mechanism further comprises a first adjusting plate, a second adjusting plate and an elastic member. One end of the first adjusting plate is connected with one end of the first transmission wheel assembly, one end of the second adjusting plate is fixedly connected with the second transmission wheel assembly, and the other end of the first adjusting plate and the other end of the second adjusting plate are both arranged as arc-shaped ends and are in meshing connection, so that the end portions of the first transmission wheel assembly and the second transmission wheel assembly are synchronously offset and adjusted in distance, and the adjusted distances of the two are the same, thereby improving the precision. The other end of the first transmission wheel assembly and the other end of the second transmission wheel assembly are connected through the elastic member, so as to facilitate the adjustment of the distance between the two to adapt to crab legs of different sizes, thereby being more compatible and improving the efficiency of cutting crab legs.

[0016] Furthermore, vertical second guide rails are provided on both sides of the workbench along the conveying direction. The pressing and conveying mechanism includes a conveyor frame, a pressing conveyor belt, a slide block, and a drive motor. A slide block protrudes from both sides of the conveyor frame, and the slide block is slidably connected to the corresponding second guide rail to improve stability during lifting. The side of the slide block facing away from the conveyor frame is connected to one end of the linkage mechanism. The pressing conveyor belt is wound around the conveyor frame, and the drive motor drives the pressing conveyor belt to rotate. The lower surface of the pressing conveyor belt is pressed against the upper surface of the crab shell, which both presses the crab legs to facilitate cutting and assists in conveying the crab legs. It is quick and convenient to use, has a simple structure, and is low in cost.

[0017] In summary, the beneficial effects of this utility model are as follows:

[0018] This invention uses a conveyor line to transport crab legs. At the cutting channel, the crab legs are clamped and fixed by the conveyor line and the pressing conveyor mechanism while being transported. The cutting blade at the cutting channel cuts the shell of the crab legs to expose the crab meat inside. The counterweight mechanism is used to offset the weight of the pressing conveyor mechanism and the cutting mechanism, making it easier for the crab legs to be lifted and pressed. The linkage mechanism can synchronously adjust the position of the cutting blade of the pressing conveyor mechanism and the cutting mechanism to accommodate crab legs of different sizes, thereby improving the compatibility of the equipment and the cutting efficiency. It has a compact structure, low cost, and is more convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one embodiment of the crab leg shelling machine of this utility model.

[0020] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the crab leg shelling machine of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of one embodiment of the crab leg shelling machine of this utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of one embodiment of the crab leg shelling machine of this utility model from another perspective.

[0023] Figure 5 yes Figure 3 Top view of the structure.

[0024] Figure 6 This is a schematic diagram of an embodiment of the connecting rod integral transmission of the crab leg shell cutting machine of this utility model.

[0025] Figure 7 This is a schematic diagram of the cutting mechanism of the crab leg shelling machine of this utility model.

[0026] Figure 8 Figure is a structure schematic view of one embodiment of the pressing conveying mechanism of the crab leg shell cutting machine.

[0027] The reference numerals in the drawings are explained as follows:

[0028] 1, crab leg shell cutting machine; 2, workbench; 21, first guide rail; 22, second guide rail; 3, conveying line; 4, cutting mechanism; 41, fixed seat; 42, cutting motor; 43, driving gear; 44, first transmission wheel assembly; 441, first transmission gear; 442, first mounting plate; 443, first transmission rod; 45, second transmission wheel assembly; 451, second transmission gear; 452, second mounting plate; 453, second transmission rod; 46, first adjusting plate; 47, second adjusting plate; 48, elastic member; 49, cutting knife; 5, connecting rod mechanism; 51, connecting rod; 52, push rod; 53, support rod; 54, fixed rod; 55, synchronous connecting rod; 6, pressing conveying mechanism; 61, conveying frame; 62, pressing conveying belt; 63, sliding seat; 64, driving motor; 7, counterweight mechanism; 71, support seat; 72, rotating wheel; 73, connecting piece; 74, counterweight; 8, rack; 81, universal wheel; 9, outer cover; 91, observation window; 10, cutting channel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0030] Those skilled in the art should understand that in the disclosure of the present application, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0031] In the description of the utility model, if there is a word such as "several" description, its meaning is one or more, the meaning of multiple is two and above, greater than, less than, exceed etc. It is understood as not including the number, above, below, within etc. It is understood as including the number. If the first, second, third is described, it is only used for distinguishing technical features for the purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0032] The following will be combined with the drawings Figures 1-8 , the embodiment of the utility model is further explained in detail.

[0033] A crab leg shell cutting machine 1, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 It includes a workbench 2, a conveying line 3 arranged on the workbench 2, a cutting mechanism 4, a connecting rod mechanism 5, a pressing conveying mechanism 6 and a counterweight mechanism 7. A group of connecting rod mechanisms 5 are arranged on both sides of the conveying line 3, and the pressing conveying mechanism 6 is arranged above the conveying line 3 and presses the upper side of the crab leg to fix the crab leg. A cutting channel 10 is arranged between the pressing conveying mechanism 6 and the conveying line 3, and the cutting edge of the cutting knife 49 of the cutting mechanism 4 is arranged in the cutting channel 10. One end of the pressing conveying mechanism 6 and the cutting mechanism 4 is fixedly connected to a group of connecting rod mechanisms 5, and the other end of the connecting rod mechanism 5 is rotatably arranged on the workbench 2. A group of counterweight mechanisms 7 are arranged on each group of connecting rod mechanisms 5 to balance the weight of the pressing conveying mechanism 6 and the cutting mechanism 4.

[0034] Among them, the conveying line 3 conveys the crab leg, the cutting channel 10 is clamped and fixed to the crab leg through the conveying line 3 and the pressing conveying mechanism 6 while conveying the crab leg, the cutting knife 49 in the cutting channel 10 processes the crab leg to expose the inside crab meat, the counterweight mechanism 7 is used to offset the weight of the pressing conveying mechanism 6 and the cutting mechanism 4, so as to facilitate the lifting of the pressing conveying mechanism 6, the connecting rod mechanism 5 can synchronously adjust the position of the cutting knife 49 of the pressing conveying mechanism 6 and the cutting mechanism 4 to adapt to crab legs of different sizes, thereby improving the compatibility and cutting efficiency of the equipment, the structure is compact, the cost is low, and the use is more convenient.

[0035] In some embodiments, please refer to Figure 3 , Figure 5 , Figure 6The linkage mechanism 5 includes a connecting rod 51, a pushing rod 52, a support rod 53, and a fixed rod 54. The support rod 53 is vertically positioned, with one end fixedly connected to the cutting mechanism 4, and the other end passing through the worktable 2 and rotatably connected to the connecting rod 51. One end of the connecting rod 51 is connected to one end of the pushing rod 52, and the other end of the pushing rod 52 is connected to one end of the fixed rod 54. The other end of the fixed rod 54 is fixed to one side of the pressing and conveying mechanism 6. The counterweight mechanism 7 is fixedly connected to the other end of the support rod 53. The counterweight mechanism 7 applies an upward pulling force to the connecting rod 51 to eliminate the self-weight of the pressing conveying mechanism 6 and the cutting mechanism 4, allowing the crab legs to easily squeeze and press the conveying mechanism 6. The connecting rod 51 swings through the support rod 53 and the fixed rod 54. While the connecting rod 51 swings, it drives the cutting blade 49 of the cutting mechanism 4 to move up and down to adjust the position of the blade, which improves the transmission efficiency and the accuracy of the relative position adjustment. This ensures that the blade of the cutting blade 49 is always in the center of the cutting channel 10, making the response more sensitive and the time shorter, thus improving the cutting quality and cutting efficiency.

[0036] Furthermore, the other end of the support rod 53 is rotatably connected to the center position of the connecting rod 51, so that the lifting ratio of the counterweight mechanism 7 to the cutting mechanism 4 and the pressing and conveying mechanism 6 is 2:1, making the structure more compact and saving space.

[0037] Preferably, the linkage mechanism 5 further includes a synchronous linkage 55, which is fixedly connected to the other end of the two connecting rods 51, so that the linkage mechanisms 5 on both sides rise and fall synchronously, thereby improving the accuracy and stability of the structural linkage and thus improving the quality and efficiency of cutting.

[0038] In some embodiments, please refer to Figure 3 , Figure 4 The counterweight mechanism 7 includes a support base 71, a rotating wheel 72, a connecting member 73, and a counterweight 74. One end of the support base 71 is mounted on the workbench 2, and the other end of the support base 71 is equipped with the rotating wheel 72. One end of the connecting member 73 is fixedly connected to the other end of the support rod 53, and the other end of the connecting member 73 is wrapped around the upper circumference of the rotating wheel 72 and passes through the workbench 2 to connect to the counterweight 74. The structure is simple and cost-effective. The connecting member 73 can be a chain structure, a belt, or a rope structure. A chain structure is preferred because the chain can be adjusted and stopped at will, resulting in higher stability.

[0039] Specifically, one end of the support rod 53 is connected to the end of the fixed seat 41 of the cutting mechanism 4, and the other end of the support rod 53 is fixedly connected to the side of the center of the connecting rod 51. The connecting piece 73 is connected to the support rod 53, and the fixed seat 41 is pulled by the counterweight 74 to realize the linkage between the cutting mechanism 4 and the pressing and conveying mechanism 6.

[0040] In some embodiments, please refer toFigure 3 、 Figure 6 、 Figure 7 The cutting mechanism 4 further comprises a fixed seat 41, a cutting motor 42, a driving gear 43 and a first transmission wheel assembly 44. The lower sides of the workbench 2 along the conveying direction are each provided with at least one first guide rail 21, both ends of the fixed seat 41 are slidingly arranged on the corresponding first guide rail 21, and one end of the connecting rod mechanism 5 is fixed to the end of the fixed seat 41. The cutting motor 42 is fixed to the fixed seat 41, the output shaft of the cutting motor 42 is fixedly connected with the driving gear 43, one end of the first transmission wheel assembly 44 is arranged on one side of the driving gear 43 and is in meshing connection, and the other end of the first transmission wheel assembly 44 is fixedly connected with the cutting knife 49, which is arranged in a way to avoid collision, thereby improving the stability of the structure and the working efficiency.

[0041] The first transmission wheel assembly 44 comprises a plurality of first transmission gears 441, a first mounting plate 442 and a first transmission rod 443. The first mounting plate 442 is fixed to the fixed seat 41, a plurality of first transmission gears 441 are arranged on the lower side of the first mounting plate 442 along the conveying direction, and the first transmission gear 441 near the end along the conveying direction is in meshing connection with the driving gear 43. Adjacent two first transmission gears 441 are in meshing connection, and the first transmission gear 441 far from the end along the conveying direction is fixedly connected with one end of the first transmission rod 443, and the other end of the first transmission rod 443 penetrates through the workbench 2 and is connected with the corresponding cutting knife 49.

[0042] Preferably, the cutting mechanism 4 further comprises a second transmission wheel assembly 45. The second transmission wheel assembly 45 is arranged on the other side of the driving gear 43 and is in meshing connection, and the other end of the second transmission wheel assembly 45 is fixedly connected with the other cutting knife 49. One cutting motor 42 synchronously drives the first transmission wheel assembly 44 and the second transmission wheel assembly 45 to rotate to drive the cutting knife 49 to rotate and cut the crab leg, thereby saving cost and making the structure more compact. One cutting knife 49 is arranged on each side of the cutting channel 10. The two cutting knives 49 are synchronously cut, and the cutting operation is more efficient.

[0043] Specifically, the second transmission wheel assembly 45 comprises a plurality of second transmission gears 451, a second mounting plate 452 and a second transmission rod 453. The second mounting plate 452 is fixed to the end of the fixed seat 41 away from the first mounting plate 442, a plurality of second transmission gears 451 are arranged on the lower side of the second mounting plate 452 along the conveying direction, and the second transmission gear 451 near the end along the conveying direction is in meshing connection with the driving gear 43. Adjacent two second transmission gears 451 are in meshing connection, and the second transmission gear 451 far from the end along the conveying direction is fixedly connected with one end of the second transmission rod 453, and the other end of the second transmission rod 453 penetrates through the workbench 2 and is connected with the corresponding cutting knife 49.

[0044] In order to improve the compatibility of the device to adapt to different sizes of crab legs, the cutting mechanism 4 further comprises a first adjusting plate 46, a second adjusting plate 47 and an elastic member 48. One end of the first adjusting plate 46 is connected with one end of the first transmission wheel assembly 44, and one end of the second adjusting plate 47 is fixedly connected with the second transmission wheel assembly 45. The other end of the first adjusting plate 46 and the other end of the second adjusting plate 47 are both provided in an arc shape and are meshingly connected, so that the end portions of the first transmission wheel assembly 44 and the second transmission wheel assembly 45 are synchronously adjusted in displacement, and the adjusted displacement of the two is the same, improving the precision. The other end of the first transmission wheel assembly 44 and the other end of the second transmission wheel assembly 45 are connected through the elastic member 48, which facilitates the adjustment of the distance between the two to adapt to different sizes of crab legs, has higher compatibility, and improves the efficiency of cutting crab legs. The elastic member 48 can be provided in a spring structure, has stronger elastic deformation capacity, and has better effect.

[0045] In some embodiments, please refer to Figure 3 , Figure 4 , Figure 8 The workbench 2 is provided with a vertical second guide rail 22 on both sides along the conveying direction. The pressing conveying mechanism 6 comprises a conveying frame 61, a pressing conveying belt 62, a sliding seat 63 and a driving motor 64. The conveying frame 61 is provided with a sliding seat 63 on both sides, and the sliding seat 63 is slidably connected with the corresponding second guide rail 22, improving the stability during lifting. One end of the sliding seat 63 away from the conveying frame 61 is connected with one end of the connecting rod mechanism 5. The pressing conveying belt 62 is wound on the conveying frame 61, and the driving motor 64 is used to drive the pressing conveying belt 62 to rotate. The lower surface of the pressing conveying belt 62 is in extrusion connection with the upper surface of the crab shell, which not only presses the crab leg for cutting operation, but also assists in conveying the crab leg, is fast and convenient to use, has simple structure and low cost. Specifically, the pressing conveying belt 62 and the driving motor 64 can be transmissionally connected through a combination structure of gears and belts to drive the pressing conveying belt 62 to rotate.

[0046] The movement direction of the lower surface of the pressing conveying belt 62 is the same as the conveying direction of the conveying line 3. The lower surface of the pressing conveying belt 62 is provided in an arc shape, the depth of the cutting channel 10 at both ends is the largest, and the depth of the cutting channel 10 at the cutting position is the smallest. That is, the pressing conveying belt 62 is located at the cutting edge position of the cutting knife 49 closest to the conveying surface of the conveying line 3, which facilitates the entry of the crab leg into the cutting channel 10, and can press the crab leg during cutting, improving the quality and efficiency of cutting.

[0047] In some embodiments, please refer to Figure 1 , Figure 2The crab leg shell cutting machine 1 further comprises a frame 8 and a protective cover. The workbench 2 is arranged on the frame 8, and universal wheels 81 are arranged on the four legs of the frame 8, so that the whole device can be moved conveniently. The outer cover 9 is arranged on the outer circumferential side of the cutting mechanism 4, the connecting rod mechanism 5 and the pressing conveying mechanism 6, so as to improve the safety performance. An observation window 91 is arranged at the upper end of the outer cover 9, so that the cutting operation can be observed conveniently.

[0048] The working principle of the crab leg shell cutting machine 1 will be described in detail below.

[0049] When the crab leg is conveyed to the cutting channel 10, the height of the crab leg is greater than the distance between the pressing conveying belt 62 and the conveying surface of the conveying line 3, and the crab leg presses the pressing conveying belt 62, so that the conveying frame 61 drives the sliding seat 63 at both ends to slide upward along the second guide rail 22 and lift. The sliding seat 63 drives the fixed rod 54 connected thereto to rise, the fixed rod 54 synchronously drives the push rod 52 and one end of the connecting rod 51 to lift, the other end of the connecting rod 51 abuts against the workbench 2, so that the connecting rod 51 drives the supporting rod 53 and the fixed seat 41 connected with the supporting rod 53 to lift synchronously, so as to ensure that the lifting adjustment height of the cutting knife 49 is synchronous with the lifting adjustment height of the pressing conveying belt 62, so as to ensure that the cutting edge of the cutting knife 49 is always located at the center position of the cutting channel 10, and the cutting quality is improved. At the same time, the supporting rod 53 is lifted, the connecting piece 73 is loosened, and the counterweight 74 is lowered to tighten the connecting piece 73.

[0050] When the crab leg is located at the cutting position, the crab leg presses the two cutting knives 49, the two cutting knives 49 are forced to move away from each other, so as to drive the first transmission wheel assembly 44 and the second transmission wheel assembly 45 to move away from each other. Specifically, the cutting knife 49 drives the end portions of the first mounting plate 442 and the second mounting plate 452 to move away from each other through the corresponding first transmission rod 443 and the second transmission rod 453, and the other end portions of the first mounting plate 442 and the second mounting plate 452 are rotated through the gear connection between the first adjusting plate 46 and the second adjusting plate 47 to adapt to the adjustment of the distance. Thus, the crab legs of different sizes can enter the cutting edge positions of the two cutting knives 49, so as to facilitate the cutting of the crab legs.

[0051] When the cutting is completed, the crab leg is conveyed out of the cutting channel 10, and the external force received by the two cutting knives 49 is removed. Under the restoring force of the elastic member 48, the two cutting knives 49 move toward each other to return to the initial position. At the same time, the first transmission rod 443 and the second transmission rod 453 drive the end portions of the first mounting plate 442 and the second mounting plate 452 to move close to each other to return to the initial position, and the first adjusting plate 46 and the second adjusting plate 47 rotate toward each other.

[0052] Moreover, after the pressing conveyor 62 loses the extrusion force of the crab leg, the connecting rod 51 is reversely rotated under the driving of the pressing conveying mechanism 6 and the cutting mechanism 4, the supporting rod 53 is lowered, the fixed seat 41 is lowered and slides along the first guide rail 21, the sliding seat 63 is lowered and slides along the second guide rail 22, and the supporting rod 53 is lowered to pull the counterweight 74 to rise and recover to the initial position through the connecting piece 73.

[0053] The embodiments of the present specific embodiment are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A crab leg shell cutting machine, characterized in that, The system includes a workbench (2), a conveyor line (3) set on the workbench (2), a cutting mechanism (4), a linkage mechanism (5), a pressing conveyor mechanism (6), and a counterweight mechanism (7). A set of linkage mechanisms (5) is set on both sides of the conveyor line (3). The pressing conveyor mechanism (6) is set above the conveyor line (3) and presses against the upper side of the crab leg to fix the crab leg. A cutting channel (10) is set between the pressing conveyor mechanism (6) and the conveyor line (3). The cutting blade (49) of the cutting mechanism (4) is set in the cutting channel (10). Both sides of the pressing conveyor mechanism (6) and the cutting mechanism (4) are fixedly connected to one end of a set of linkage mechanisms (5). The other end of the linkage mechanism (5) is rotatably set on the workbench (2). Each set of linkage mechanisms (5) is also equipped with a counterweight mechanism (7) to balance the weight of the pressing conveyor mechanism (6) and the cutting mechanism (4).

2. The crab leg shell cutting machine according to claim 1, characterized in that, The linkage mechanism (5) includes a connecting rod (51), a pushing rod (52), a support rod (53), and a fixed rod (54); the support rod (53) is vertically arranged, one end of the support rod (53) is fixedly connected to the cutting mechanism (4), and the other end of the support rod (53) passes through the worktable (2) and is rotatably connected to the connecting rod (51); one end of the connecting rod (51) is connected to one end of the pushing rod (52), the other end of the pushing rod (52) is connected to one end of the fixed rod (54), and the other end of the fixed rod (54) is fixed to one side of the pressing and conveying mechanism (6); the counterweight mechanism (7) is fixedly connected to the other end of the support rod (53).

3. The crab leg shell cutting machine according to claim 2, characterized in that, The other end of the support rod (53) is rotatably connected to the center position of the connecting rod (51).

4. The crab leg shell cutting machine according to claim 3, characterized in that, The linkage mechanism (5) further includes a synchronous link (55), which is fixedly connected to the other end of the two connecting rods (51).

5. The crab leg shell cutting machine according to claim 2, characterized in that, The counterweight mechanism (7) includes a support base (71), a rotating wheel (72), a connector (73), and a counterweight (74). One end of the support base (71) is disposed on the workbench (2), and the other end of the support base (71) is provided with a rotating wheel (72). One end of the connector (73) is fixedly connected to the other end of the support rod (53), and the other end of the connector (73) is wrapped around the upper circumference of the rotating wheel (72) and passes through the workbench (2) to connect to the counterweight (74).

6. The crab leg shell cutting machine according to claim 1, characterized in that, The cutting mechanism (4) further includes a fixed base (41), a cutting motor (42), a drive gear (43), and a first transmission wheel assembly (44); at least one first guide rail (21) is provided on both sides of the worktable (2) along the conveying direction, and both ends of the fixed base (41) are slidably disposed on the corresponding first guide rail (21), and one end of the linkage mechanism (5) is fixed to the end of the fixed base (41); the cutting motor (42) is fixed on the fixed base (41), and the output shaft of the cutting motor (42) is fixedly connected to the drive gear (43), one end of the first transmission wheel assembly (44) is disposed on one side of the drive gear (43) and meshed, and the other end of the first transmission wheel assembly (44) is fixedly connected to the cutting blade (49).

7. The crab leg shell cutting machine according to claim 6, characterized in that, The first transmission wheel assembly (44) includes a plurality of first transmission gears (441), a first mounting plate (442), and a first transmission rod (443); the first mounting plate (442) is fixed on the fixed base (41), and a plurality of first transmission gears (441) are spaced apart below the first mounting plate (442) along the conveying direction. The first transmission gear (441) at the near end along the conveying direction is meshed with the driving gear (43), and two adjacent first transmission gears (441) are meshed with each other. The first transmission gear (441) at the far end along the conveying direction is fixedly connected to one end of the first transmission rod (443), and the other end of the first transmission rod (443) passes through the worktable (2) and is connected to the corresponding cutting blade (49).

8. The crab leg shell cutting machine according to claim 6, characterized in that, The cutting mechanism (4) further includes a second transmission wheel assembly (45); the second transmission wheel assembly (45) is disposed on the other side of the drive gear (43) and meshed with it, and the other end of the second transmission wheel assembly (45) is fixedly connected to another cutting blade (49); a cutting blade (49) is disposed on both sides of the cutting channel (10).

9. The crab leg shell cutting machine according to claim 8, characterized in that, The cutting mechanism (4) further includes a first adjusting plate (46), a second adjusting plate (47), and an elastic element (48); one end of the first adjusting plate (46) is connected to one end of the first transmission wheel assembly (44), one end of the second adjusting plate (47) is fixedly connected to the second transmission wheel assembly (45), and the other ends of the first adjusting plate (46) and the second adjusting plate (47) are both set as arc-shaped ends and are meshed together; the other end of the first transmission wheel assembly (44) and the other end of the second transmission wheel assembly (45) are connected by the elastic element (48).

10. The crab leg shell cutting machine according to claim 1, characterized in that, The workbench (2) is provided with vertical second guide rails (22) on both sides along the conveying direction; the pressing conveying mechanism (6) includes a conveying frame (61), a pressing conveying belt (62), a slide (63) and a drive motor (64); a slide (63) is provided on both sides of the conveying frame (61), the slide (63) is slidably connected to the corresponding second guide rail (22), and the side of the slide (63) away from the conveying frame (61) is connected to one end of the linkage mechanism (5); the pressing conveying belt (62) is wound around the conveying frame (61), and the drive motor (64) is used to drive the pressing conveying belt (62) to rotate; the lower surface of the pressing conveying belt (62) is pressed and connected to the upper surface of the crab shell.

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