Checkweigher with material arranging structure

Abstract

The utility model relates to the technical field of checkweighers, in particular to a checkweigher with a material arranging structure, which comprises a first U-shaped conveying groove, a first conveying belt, a second conveying belt and a third conveying belt are sequentially arranged in the first U-shaped conveying groove from left to right, and a U-shaped discharge port is arranged at the top of the front side of the first U-shaped conveying groove. A first pushing assembly is arranged on the rear side of the top of the first U-shaped conveying groove, a sorting table is arranged on the front side of the first U-shaped conveying groove, a second pushing assembly is arranged on the left side of the top of the sorting table, and a third pushing assembly is arranged on the rear side of the top of the sorting table. According to the checkweigher with the material arranging structure, unqualified finished products are pushed to the sorting table through the first material pushing assembly, overweight finished products are pushed to the fifth conveying belt through the second material pushing assembly and output through the fifth conveying belt, and finished products with unqualified weights are pushed to the fourth conveying belt through the third material pushing assembly; therefore, sorting of overweight finished products and finished products with substandard weight is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of checkweighers, in particular to a checkweigher with a material sorting structure. Background Art

[0002] With the development of industrial technology, various automatic production lines are widely used in industry. Many finished products need to be inspected before they are output from the production line to determine whether they are qualified or not.

[0003] The patent with the publication number CN210585943U discloses a weighing detection device, including a front conveyor belt, a weighing platform, an operating platform and a rear conveyor belt which are arranged in parallel and connected in transmission. A main control machine is provided on one side of the weighing platform, and a placement platform is provided on one side of the operation platform. A weighing mechanism for detecting the weight of an object is provided on the weighing platform, and the weighing mechanism sends the weighing data of the object to the main control machine. A pushing component is provided on one side of the operation platform, and the pushing component can selectively push the object on the operation platform to the placement platform. The main control machine is used to control the front conveyor belt, the weighing platform, the operating platform and the rear conveyor belt to work individually or in combination. The output time of the production line is reduced, the production efficiency and quality of the production line are improved, and the labor cost is reduced.

[0004] Although the above-mentioned prior art can reduce the output time of the production line and improve the production efficiency and quality of the production line, the above-mentioned prior art can only sort qualified products and unqualified products, and kick out the products that are unqualified by weight from the assembly line. The unqualified products kicked out also include two types of products, overweight and substandard weight, which need to be sorted again. If they are not sorted in time, the difficulty of subsequent sorting will increase. The unqualified products need to be weighed again, which will waste manpower and material resources. In view of this, we propose a checkweigher with a material sorting structure. Utility Model Content

[0005] The purpose of the utility model is to provide a check weighing scale with a material sorting structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A checkweigher with a material sorting structure, comprising a first U-shaped conveying trough, in which a first conveyor belt, a second conveyor belt and a third conveyor belt are arranged in sequence from left to right, a fixed transverse plate is arranged between the front and rear sides of the inner wall of the first U-shaped conveying trough and located at the position of the inner cavity of the second conveyor belt, a weighing sensor is arranged on the top of the fixed transverse plate, a weighing plate is arranged on the detection surface of the top of the weighing sensor, the top of the weighing plate is in contact with the top of the inner surface of the second conveyor belt, the first conveyor belt is used to convey the finished product to the second conveyor belt, the finished product moved to the second conveyor belt can be weighed by the cooperation of the fixed transverse plate, the weighing sensor and the weighing plate, and the third conveyor belt is used to output the finished product that has passed the weighing;

[0008] A U-shaped discharge port is provided at the top of the front side of the first U-shaped conveying trough and at the position of the second conveyor belt, a first pushing assembly is provided at the rear side of the top of the first U-shaped conveying trough and at the position directly behind the U-shaped discharge port, a sorting platform is provided at the front side of the first U-shaped conveying trough and at the position of the U-shaped discharge port, a second pushing assembly is provided at the left side of the top of the sorting platform, a third pushing assembly is provided at the rear side of the top of the sorting platform, a second U-shaped conveying trough is provided at the front side of the sorting platform, a fourth conveyor belt is provided in the second U-shaped conveying trough, a third U-shaped conveying trough is provided at the right side of the sorting platform, and a fifth conveyor belt is provided in the third U-shaped conveying trough;

[0009] The first pushing component pushes unqualified finished products onto the sorting table, the second pushing component pushes overweight finished products onto the fifth conveyor belt and outputs them through the fifth conveyor belt, and the third pushing component pushes finished products that do not meet the weight standards onto the fourth conveyor belt, thereby realizing the sorting of overweight finished products and finished products that do not meet the weight standards.

[0010] Preferably, a first servo motor for driving the first conveyor belt transmission is provided through a mounting seat at the rear side and near the left end of the first U-shaped conveyor trough, a second servo motor for driving the second conveyor belt transmission is provided through a mounting seat at the rear side and near the middle of the first U-shaped conveyor trough, and a third servo motor for driving the third conveyor belt transmission is provided through a mounting seat at the rear side and near the right end of the first U-shaped conveyor trough, which drive the first conveyor belt, the second conveyor belt and the third conveyor belt transmission respectively. Separate driving can avoid interference and achieve continuous weighing of finished products.

[0011] Preferably, the first pusher assembly comprises a first fixed vertical plate fixedly connected to the top of the first U-shaped conveying trough, a first cylinder is provided in the middle of the rear side of the first fixed vertical plate, an end of the first cylinder movable rod passes through the rear side of the first fixed vertical plate and is fixedly connected to the first pusher plate, and the first pusher plate is driven to move forward and backward by the first cylinder, so as to push unqualified finished products from the second conveyor belt forward to the sorting table;

[0012] Two first positioning rods are symmetrically arranged at the rear side of the first push plate, and the rear ends of the two first positioning rods both penetrate the front side of the first fixed vertical plate, which is conducive to the stable forward and backward movement of the first push plate.

[0013] Preferably, the second pushing assembly includes a second fixed vertical plate fixedly connected to the top of the sorting platform, a second cylinder is provided in the middle of the left side of the second fixed vertical plate, the end of the movable rod of the second cylinder passes through the left side of the second fixed vertical plate and is fixedly connected to the second pushing plate, and the second pushing plate is driven to move left and right by the second cylinder, so as to push the overweight finished product to the right onto the fifth conveyor belt;

[0014] Two second positioning rods symmetrically arranged front and back are provided on the left side of the second push plate, and the left ends of the two second positioning rods both pass through the right side of the second fixed vertical plate, which is conducive to the stable left and right movement of the second push plate.

[0015] Preferably, the third pusher assembly comprises a U-shaped fixed plate fixedly connected to the top of the sorting platform, a third cylinder is provided at the rear side of the U-shaped fixed plate and near the middle of the top edge, the end of the third cylinder movable rod passes through the rear side of the U-shaped fixed plate and is fixedly connected to the third pusher plate, and the third pusher plate is driven to move forward and backward by the third cylinder;

[0016] Two third positioning rods are arranged symmetrically on the rear side of the third push plate, and the rear ends of the two third positioning rods both penetrate the front side of the U-shaped fixing plate, which is conducive to the stable forward and backward movement of the third push plate.

[0017] Preferably, both left and right ends of the front side of the third push plate are provided with fixed protrusions, a rotating plate is rotatably connected between the two fixed protrusions, the rotating shaft of the rotating plate is close to the top of the fixed protrusion, the rear side of the rotating plate is in contact with the front side of the third push plate, and the rotating plate can be prevented from rotating backward, a rectangular connecting groove is provided at the bottom of the rotating plate, an adjustable rectangular connecting plate is provided in the rectangular connecting groove, and a fourth push plate is provided at the bottom of the rectangular connecting plate;

[0018] When the finished product moves from the second conveyor belt to the sorting platform, the finished product can push the fourth push plate to rotate forward, thereby preventing the fourth push plate from hindering the finished product from moving forward. When the first cylinder active rod is fully extended, the first push plate can push the finished product to the sorting platform, and the rear side of the finished product can move to the front of the fourth push plate, so that the fourth push plate is separated from the top of the finished product, and the fourth push plate is reset to a vertical state, so that the fourth push plate can push the finished product that does not meet the weight standard to move forward.

[0019] Preferably, the front side of the rotating plate and the positions near the left and right ends of the bottom are threadedly connected with fastening bolts, and the front side of the rectangular connecting plate is provided with two strip grooves symmetrically arranged on the left and right sides, and the threaded ends of the two fastening bolts are respectively against the inner walls of the two strip grooves, and the rectangular connecting plate after the adjusted position can be fixed by the two fastening bolts, so as to achieve adjustment of the height of the fourth push plate to adapt to finished products of different heights, ensure that the fourth push plate can fall from the top of the finished product, and avoid affecting the movement of finished products that do not meet the weight standards pushed by the fourth push plate.

[0020] Preferably, a fourth servo motor for driving a fourth conveyor belt is provided on the left side of the second U-shaped conveying trough through a mounting seat, and the fourth conveyor belt is driven by the fourth servo motor, so that the fourth conveyor belt outputs finished products that do not meet the weight standard.

[0021] Preferably, a fifth servo motor for driving a fifth conveyor belt is provided on the front side of the third U-shaped conveying trough through a mounting seat, and the fifth conveyor belt is driven by the fifth servo motor, so that the fifth conveyor belt outputs the overweight finished products.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The checkweigher with material sorting structure transports the finished products to the second conveyor belt through the first conveyor belt. The finished products moved to the second conveyor belt can be weighed by the cooperation of the fixed cross plate, the weighing sensor and the weighing plate. The third conveyor belt is used to output the qualified finished products.

[0024] 2. The first pushing component pushes unqualified finished products onto the sorting table, the second pushing component pushes overweight finished products onto the fifth conveyor belt and outputs them through the fifth conveyor belt, and the third pushing component pushes finished products that do not meet the weight standard onto the fourth conveyor belt, thereby realizing the sorting of overweight finished products and finished products that do not meet the weight standard.

[0025] 3. The rectangular connecting plate after the adjustment can be fixed by two fastening bolts, so as to adjust the height of the fourth push plate to adapt to finished products of different heights, ensure that the fourth push plate can fall from the top of the finished product, and avoid affecting the movement of the finished product that does not meet the weight standard pushed by the fourth push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is one of the partial structural schematic diagrams of the utility model;

[0028] Figure 3 This is the second schematic diagram of the partial structure of the utility model;

[0029] Figure 4 It is a schematic diagram of the assembly structure of the sorting platform, the second material pushing assembly and the third material pushing assembly in the utility model;

[0030] Figure 5 It is a partial structural schematic diagram of the third pusher assembly in the utility model.

[0031] In the figure: 1, first U-shaped conveying trough; 10, U-shaped discharge port; 2, first conveyor belt; 3, second conveyor belt; 4, third conveyor belt; 5, sorting platform; 6, first pusher assembly; 60, first fixed vertical plate; 61, first cylinder; 62, first pusher plate; 620, first positioning rod; 7, second pusher assembly; 70, second fixed vertical plate; 71, second cylinder; 72, second pusher plate; 720, second positioning rod; 8, third pusher assembly; 80, U-shaped fixed plate; 81, third cylinder; 82, third pusher plate; 820 , the third positioning rod; 821, the fixed protrusion; 83, the rotating plate; 830, the rectangular connecting groove; 84, the fourth push plate; 85, the rectangular connecting plate; 850, the strip groove; 86, the fastening bolt; 9, the second U-shaped conveying trough; 11, the fixed horizontal plate; 12, the weighing sensor; 13, the weighing plate; 14, the first servo motor; 15, the second servo motor; 16, the third servo motor; 17, the third U-shaped conveying trough; 18, the fourth conveyor belt; 19, the fifth conveyor belt; 20, the fourth servo motor; 21, the fifth servo motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0035] A checkweigher with a material sorting structure comprises a first U-shaped conveying trough 1, in which a first conveying belt 2, a second conveying belt 3 and a third conveying belt 4 are arranged from left to right in sequence, a fixed transverse plate 11 is arranged between the front and rear sides of the inner wall of the first U-shaped conveying trough 1 and located at the position of the inner cavity of the second conveying belt 3, a weighing sensor 12 is arranged on the top of the fixed transverse plate 11, a weighing plate 13 is arranged on the detection surface of the top of the weighing sensor 12, and the top of the weighing plate 13 is in contact with the top of the inner surface of the second conveying belt 3, the first conveying belt 2 is used to convey the finished product to the second conveying belt 3, and the finished product moved to the second conveying belt 3 can be weighed by the cooperation of the fixed transverse plate 11, the weighing sensor 12 and the weighing plate 13, and the third conveying belt 4 is used to output the finished product that has passed the weighing;

[0036] A U-shaped discharge port 10 is provided at the top of the front side of the first U-shaped conveying trough 1 and at the position of the second conveyor belt 3, a first pushing assembly 6 is provided at the rear side of the top of the first U-shaped conveying trough 1 and at the position directly behind the U-shaped discharge port 10, a sorting platform 5 is provided at the front side of the first U-shaped conveying trough 1 and at the position of the U-shaped discharge port 10, a second pushing assembly 7 is provided at the left side of the top of the sorting platform 5, a third pushing assembly 8 is provided at the rear side of the top of the sorting platform 5, a second U-shaped conveying trough 9 is provided at the front side of the sorting platform 5, a fourth conveyor belt 18 is provided in the second U-shaped conveying trough 9, a third U-shaped conveying trough 17 is provided on the right side of the sorting platform 5, and a fifth conveyor belt 19 is provided in the third U-shaped conveying trough 17;

[0037] The unqualified finished products are pushed onto the sorting platform 5 by the first pushing component 6, the overweight finished products are pushed onto the fifth conveyor belt 19 by the second pushing component 7, and outputted through the fifth conveyor belt 19, and the third pushing component 8 pushes the finished products that do not meet the weight standard onto the fourth conveyor belt 18, thereby realizing the sorting of overweight finished products and finished products that do not meet the weight standard.

[0038] In this embodiment, a first servo motor 14 for driving the first conveyor belt 2 is provided through a mounting seat at the rear side and near the left end of the first U-shaped conveying trough 1, a second servo motor 15 for driving the second conveyor belt 3 is provided through a mounting seat at the rear side and near the middle of the first U-shaped conveying trough 1, and a third servo motor 16 for driving the third conveyor belt 4 is provided through a mounting seat at the rear side and near the right end of the first U-shaped conveying trough 1, which drive the first conveyor belt 2, the second conveyor belt 3 and the third conveyor belt 4 respectively. Separate driving can avoid interference and realize continuous weighing of finished products.

[0039] Specifically, the first pusher assembly 6 includes a first fixed vertical plate 60 fixedly connected to the top of the first U-shaped conveying trough 1, a first cylinder 61 is provided in the middle of the rear side of the first fixed vertical plate 60, the end of the movable rod of the first cylinder 61 passes through the rear side of the first fixed vertical plate 60 and is fixedly connected with a first pusher plate 62, and the first pusher plate 62 is driven by the first cylinder 61 to move forward and backward, so as to push the unqualified finished products from the second conveyor belt 3 forward to the sorting platform 5;

[0040] Two first positioning rods 620 symmetrically arranged on the rear side of the first push plate 62 are provided, and the rear ends of the two first positioning rods 620 both penetrate the front side of the first fixed vertical plate 60 , which is conducive to the stable forward and backward movement of the first push plate 62 .

[0041] Furthermore, the second pushing assembly 7 includes a second fixed vertical plate 70 fixedly connected to the top of the sorting platform 5, a second cylinder 71 is provided in the middle of the left side of the second fixed vertical plate 70, the end of the movable rod of the second cylinder 71 passes through the left side of the second fixed vertical plate 70 and is fixedly connected to a second push plate 72, and the second push plate 72 is driven by the second cylinder 71 to move left and right, thereby pushing the overweight finished product to the right onto the fifth conveyor belt 19;

[0042] Two second positioning rods 720 symmetrically arranged front and back are provided on the left side of the second push plate 72. The left ends of the two second positioning rods 720 both pass through the right side of the second fixed vertical plate 70, which is conducive to the stable left and right movement of the second push plate 72.

[0043] Further, the third pusher assembly 8 includes a U-shaped fixed plate 80 fixedly connected to the top of the sorting platform 5, a third cylinder 81 is provided at the rear side of the U-shaped fixed plate 80 and near the middle of the top edge, the end of the movable rod of the third cylinder 81 passes through the rear side of the U-shaped fixed plate 80 and is fixedly connected to a third pusher plate 82, and the third pusher plate 82 is driven to move forward and backward by the third cylinder 81;

[0044] Two third positioning rods 820 symmetrically arranged on the rear side of the third push plate 82 are provided, and the rear ends of the two third positioning rods 820 both penetrate the front side of the U-shaped fixing plate 80, which is conducive to the stable forward and backward movement of the third push plate 82.

[0045] Further, the left and right ends of the front side of the third push plate 82 are provided with fixed protrusions 821, and a rotating plate 83 is rotatably connected between the two fixed protrusions 821. The rotating shaft of the rotating plate 83 is close to the top of the fixed protrusion 821, and the rear side of the rotating plate 83 is in contact with the front side of the third push plate 82, which can prevent the rotating plate 83 from rotating backward. A rectangular connecting groove 830 is provided at the bottom of the rotating plate 83, and an adjustable rectangular connecting plate 85 is provided in the rectangular connecting groove 830. A fourth push plate 84 is provided at the bottom of the rectangular connecting plate 85.

[0046] When the finished product moves from the second conveyor belt 3 to the sorting platform 5, the finished product can push the fourth push plate 84 to rotate forward, thereby preventing the fourth push plate 84 from hindering the finished product from moving forward. When the movable rod of the first cylinder 61 is fully extended, the first push plate 62 can push the finished product onto the sorting platform 5, and the rear side of the finished product can move to the front of the fourth push plate 84, so that the fourth push plate 84 is separated from the top of the finished product, and the fourth push plate 84 is reset to a vertical state, so that the fourth push plate 84 can push the finished product that does not meet the weight standard to move forward.

[0047] Furthermore, fastening bolts 86 are threadedly connected on the front side of the rotating plate 83 and near the left and right ends of the bottom. Two strip grooves 850 are arranged symmetrically on the front side of the rectangular connecting plate 85. The threaded ends of the two fastening bolts 86 are respectively against the inner walls of the two strip grooves 850. The rectangular connecting plate 85 after the adjusted position can be fixed by the two fastening bolts 86, so as to adjust the height of the fourth push plate 84 to adapt to finished products of different heights, and ensure that the fourth push plate 84 can fall from the top of the finished product to avoid affecting the movement of the finished product that does not meet the weight standard pushed by the fourth push plate 84.

[0048] Furthermore, a fourth servo motor 20 for driving the fourth conveyor belt 18 is provided on the left side of the second U-shaped conveying trough 9 through a mounting seat. The fourth conveyor belt 18 is driven by the fourth servo motor 20, so that the fourth conveyor belt 18 outputs finished products that do not meet the weight standard.

[0049] Furthermore, a fifth servo motor 21 for driving the fifth conveyor belt 19 is provided on the front side of the third U-shaped conveying trough 17 through a mounting seat. The fifth conveyor belt 19 is driven by the fifth servo motor 21, so that the fifth conveyor belt 19 outputs the overweight finished products.

[0050] When the checkweigher with material sorting structure of this embodiment is in use, the first conveyor belt 2 conveys the finished product to the second conveyor belt 3. Under the action of the fixed cross plate 11, the weighing sensor 12 and the weighing plate 13, the finished product moved to the second conveyor belt 3 can be weighed. When the finished product is qualified, the second conveyor belt 3 conveys the finished product to the right to the third conveyor belt 4, and the qualified finished product is output through the third conveyor belt 4. When the finished product is unqualified, the first cylinder 61 drives the first push plate 62 to move forward, and pushes the unqualified finished product from the second conveyor belt 3 to the sorting table 5. At this time, if the weighing of the finished product is qualified If the result is overweight, the second cylinder 71 drives the second push plate 72 to move rightward, pushes the overweight finished product to the right onto the fifth conveyor belt 19, and outputs the overweight finished product through the fifth conveyor belt 19; if the weighing result of the finished product is that the weight does not meet the standard, the third cylinder 81 drives the third push plate 82 to move forward, so that the fourth push plate 84 pushes the finished product that does not meet the weight standard to move forward to the fourth conveyor belt 18, and outputs the finished product that does not meet the weight standard through the fourth conveyor belt 18, thereby realizing the material sorting of the finished products by the checkweigher, separating the finished products that meet the weighing standard, the overweight finished products and the finished products that do not meet the weight standard, which is beneficial to the subsequent processing.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A checkweigher with a material sorting structure, comprising a first U-shaped conveying trough (1), characterized in that: The first U-shaped conveying trough (1) is provided with a first conveying belt (2), a second conveying belt (3) and a third conveying belt (4) in sequence from left to right; a fixed transverse plate (11) is provided between the front and rear sides of the inner wall of the first U-shaped conveying trough (1) and located in the inner cavity of the second conveying belt (3); a weighing sensor (12) is provided on the top of the fixed transverse plate (11); a weighing plate (13) is provided on the detection surface of the top of the weighing sensor (12); the top of the weighing plate (13) is in contact with the top of the inner surface of the second conveying belt (3); a U-shaped discharge port (10) is provided at the top of the front side of the first U-shaped conveying trough (1) and located in the position of the second conveying belt (3); the first U-shaped A first material pushing assembly (6) is provided at the rear side of the top of the conveying trough (1) and directly behind the U-shaped discharge port (10); a sorting platform (5) is provided at the front side of the first U-shaped conveying trough (1) and at the position of the U-shaped discharge port (10); a second material pushing assembly (7) is provided at the left side of the top of the sorting platform (5); a third material pushing assembly (8) is provided at the rear side of the top of the sorting platform (5); a second U-shaped conveying trough (9) is provided at the front side of the sorting platform (5); a fourth conveyor belt (18) is provided in the second U-shaped conveying trough (9); a third U-shaped conveying trough (17) is provided at the right side of the sorting platform (5); a fifth conveyor belt (19) is provided in the third U-shaped conveying trough (17).

2. The checkweigher with material sorting structure according to claim 1, characterized in that: A first servo motor (14) for driving the first conveyor belt (2) is provided at the rear side of the first U-shaped conveyor trough (1) and near the left end thereof through a mounting seat, a second servo motor (15) for driving the second conveyor belt (3) is provided at the rear side of the first U-shaped conveyor trough (1) and near the middle thereof through a mounting seat, and a third servo motor (16) for driving the third conveyor belt (4) is provided at the rear side of the first U-shaped conveyor trough (1) and near the right end thereof through a mounting seat.

3. The checkweigher with material sorting structure according to claim 1, characterized in that: The first pusher assembly (6) comprises a first fixed vertical plate (60) fixedly connected to the top of the first U-shaped conveying trough (1); a first cylinder (61) is provided in the middle of the rear side of the first fixed vertical plate (60); the end of the movable rod of the first cylinder (61) passes through the rear side of the first fixed vertical plate (60) and is fixedly connected to the first pusher plate (62); the rear side of the first pusher plate (62) is provided with two first positioning rods (620) arranged symmetrically on the left and right, and the rear ends of the two first positioning rods (620) both pass through the front side of the first fixed vertical plate (60).

4. The checkweigher with material sorting structure according to claim 1, characterized in that: The second pusher assembly (7) comprises a second fixed vertical plate (70) fixedly connected to the top of the sorting platform (5); a second cylinder (71) is provided in the middle of the left side of the second fixed vertical plate (70); the end of the movable rod of the second cylinder (71) passes through the left side of the second fixed vertical plate (70) and is fixedly connected to the second pusher plate (72); two second positioning rods (720) are symmetrically arranged in the front and rear directions on the left side of the second pusher plate (72); the left ends of the two second positioning rods (720) both pass through the right side of the second fixed vertical plate (70).

5. The checkweigher with material sorting structure according to claim 1, characterized in that: The third pusher assembly (8) comprises a U-shaped fixed plate (80) fixedly connected to the top of the sorting platform (5); a third cylinder (81) is provided on the rear side of the U-shaped fixed plate (80) and near the middle of the top edge; the end of the movable rod of the third cylinder (81) passes through the rear side of the U-shaped fixed plate (80) and is fixedly connected to a third pusher plate (82); two third positioning rods (820) are provided on the rear side of the third pusher plate (82) and are symmetrically arranged on the left and right; the rear ends of the two third positioning rods (820) both pass through the front side of the U-shaped fixed plate (80).

6. The checkweigher with material sorting structure according to claim 5, characterized in that: The left and right ends of the front side of the third push plate (82) are both provided with fixed protrusions (821), a rotating plate (83) is rotatably connected between the two fixed protrusions (821), a rectangular connecting groove (830) is provided at the bottom of the rotating plate (83), an adjustable rectangular connecting plate (85) is provided in the rectangular connecting groove (830), and a fourth push plate (84) is provided at the bottom of the rectangular connecting plate (85).

7. The checkweigher with material sorting structure according to claim 6, characterized in that: The front side of the rotating plate (83) and the positions near the left and right ends of the bottom are both threadedly connected with fastening bolts (86), and the front side of the rectangular connecting plate (85) is provided with two strip grooves (850) arranged symmetrically on the left and right, and the threaded ends of the two fastening bolts (86) are respectively against the inner walls of the two strip grooves (850).

8. The checkweigher with material sorting structure according to claim 1, characterized in that: A fourth servo motor (20) for driving a fourth conveyor belt (18) is provided on the left side of the second U-shaped conveying trough (9) via a mounting seat.

9. The checkweigher with material sorting structure according to claim 1, characterized in that: A fifth servo motor (21) for driving the fifth conveyor belt (19) is provided on the front side of the third U-shaped conveying trough (17) through a mounting seat.

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