Sorting machine for transporting glass products

Abstract

The utility model belongs to the field of glass product sorting machines, and particularly relates to a sorting machine for transporting glass products, which comprises a base, an indicating lamp is mounted on a second guide plate, a second screw rod is mounted on an output shaft of a second stepping motor, a clamping plate is mounted on the bottom side of a second sliding block, a moving plate is assembled in an assembly groove, and a second screw rod is mounted on the moving plate. A limiting block is welded to the side wall of the movable plate, a first electrode plate is installed on the side wall of the limiting block, a second electrode plate is installed on the inner wall of the assembling groove, a second stepping motor is controlled to operate through the control panel, the two clamping plates are driven to move towards the glass bottle, and an internal circuit of the indicator lamp is switched on at the moment that the two clamping plates make contact with the glass bottle at the same time; when the glass product is clamped, the indicator light sends an electric signal to the control panel, the control panel controls the second stepping motor to stop operating after receiving the electric signal, the clamping force on the clamping plate is moderate at the moment, the structure prevents the glass product from being damaged by too large clamping force, and the protection performance of the glass product is improved.

Description

Technical Field

[0001] The utility model relates to the field of glass product sorting machines, and specifically relates to a sorting machine for transporting glass products. Background Art

[0002] After the glass products are produced, they need to be transported. In order to ensure the quality of the glass products before transportation, the glass products need to be sorted before packaging, and a sorting machine is required during the sorting process of the glass products.

[0003] A Chinese patent with the publication number CN219541026U discloses a sorting machine for transporting glass products, which is provided with a conveyor. A sorting mechanism is installed above the end of the conveyor, and diversion belts are arranged on both sides of the conveyor; a support plate is fixed to the side of the conveyor. A telescopic cylinder is installed on the side of the support plate through bolts, and a push plate is connected to the output shaft of the telescopic cylinder; it includes: a fixed rod fixed to the edge of the push plate. One end of the fixed rod away from the push plate is connected to a piston plate, and a fixed cylinder is sleeved outside the piston plate. The fixed cylinder is fixed to the support plate; a movable roller is embedded in the side of the push plate, and a movable shaft is fixed to the top of the movable roller. This sorting machine for transporting glass products can clean the surface of the products when pushing after sorting the glass products, prevent contamination, and avoid jamming between the glass products and the pushing structure, ensuring the continuous conveyance of subsequent glass products.

[0004] During the sorting process of the existing sorting machine for glass products, the glass products are clamped and transported by clamps. Since the clamps cannot control the clamping force on them, the clamping force is likely to be too large and damage the glass products, resulting in poor protection for the glass products; therefore, a sorting machine for transporting glass products is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a sorting machine for transporting glass products.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A sorting machine for transporting glass products according to the present utility model includes a base, on which two groups of fixing frames are welded. A control panel is installed on the fixing frames, and a sorting component is installed on the fixing frames. A clamping component is installed on the sorting component. The clamping component includes a second guide plate, on which an indicator light is installed. A second chute is opened on the second guide plate. A second stepping motor is installed on the side wall of the second guide plate through a machine base. A second lead screw is installed on the output shaft of the second stepping motor. The second lead screw is rotatably installed between the inner walls of the second chute. The thread directions on the second lead screw are symmetrically opposite. Two groups of second sliders are symmetrically assembled in the second chute. A clamping plate is installed on the bottom side of the second slider. An assembly groove is opened in one of the clamping plates. A moving plate is assembled in the assembly groove. A limiting block is welded on the side wall of the moving plate. The limiting block is fixedly connected to the moving plate. A first electrode plate is installed on the side wall of the limiting block. A second electrode plate is installed on the inner wall of the assembly groove. A spring is installed between the limiting block and the inner wall of the assembly groove. The second stepping motor and the indicator light are connected to the control panel through an internal circuit. The indicator light is connected to the first electrode plate and the second electrode plate through an internal circuit. The sorting component includes a first guide plate, which is fixedly connected to the fixing frame. A first chute is opened inside the first guide plate. A first stepping motor is installed on the side wall of the first guide plate through a machine base. A first lead screw is installed on the output shaft of the first stepping motor. The first lead screw is rotatably installed between the inner walls of the first chute. A first slider is assembled in the first chute. An installation frame is welded on the bottom side of the first slider. A hydraulic cylinder is installed on the installation frame. A hydraulic rod is installed on the hydraulic cylinder. The hydraulic rod penetrates through the bottom plate of the installation frame and is fixedly connected to the second guide plate at the bottom side. The first stepping motor is connected to the control panel through an internal circuit. By controlling the operation of the second stepping motor through the control panel, two groups of clamping plates are driven to move towards the glass bottle. At the moment when the two groups of clamping plates come into contact with the glass bottle simultaneously, the internal circuit of the indicator light is turned on, and the indicator light sends an electrical signal to the control panel. After receiving the electrical signal, the control panel controls the second stepping motor to stop operating. At this time, the clamping force on the clamping plate is appropriate. This structure avoids damage to the glass products caused by excessive clamping force and is beneficial to improving the protection of glass products.

[0007] Preferably, a first conveying assembly, a second conveying assembly and a third conveying assembly are installed on the base. The first conveying assembly includes a first support frame. Two groups of first rotating rods are rotatably installed on the first support frame. A first roller is sleeved on the first rotating rod. A first conveyor belt is sleeved on the two first rollers. A first gear is sleeved on the first rotating rod. A first transmission chain is sleeved on the two first gears. A first driving motor is installed on the side wall of the first support frame through a machine base. The output shaft of the first driving motor is fixedly connected to the first rotating rod. The internal structures of the first conveying assembly, the second conveying assembly and the third conveying assembly are the same. A second conveyor belt is rotatably installed in the second conveying assembly. A third conveyor belt is rotatably installed in the third conveying assembly. Among them, a plurality of pushing plates are installed on the first conveyor belt of the first support frame. Two groups of support plates are symmetrically installed on the base. An electronic scale is fixedly installed on the support plate. A weighing sensor is assembled inside the electronic scale. A weighing box is fixedly installed on the electronic scale. A foam board is placed inside the weighing box. The weighing sensor is connected to the control panel through an internal circuit. By placing the glass bottle on the first conveyor belt, the first conveyor belt drives the glass bottle to move. At the same time, the pushing plate on the first conveyor belt pushes the glass bottle to move stably, avoiding the phenomenon of jamming during the conveying process of the glass bottle, realizing the stable conveying of the glass bottle, and being beneficial to improving the conveying efficiency.

[0008] The beneficial effects of the present utility model are as follows:

[0009] 1. The present utility model controls the operation of the second stepping motor through the control panel, drives the two clamping plates to move towards the glass bottle. At the moment when the two clamping plates come into contact with the glass bottle simultaneously, the internal circuit of the indicator light is connected, and the indicator light sends an electrical signal to the control panel. After receiving the electrical signal, the control panel controls the second stepping motor to stop operating. At this time, the clamping force on the clamping plate is appropriate. This structure avoids damage to the glass products caused by excessive clamping force and is beneficial to improving the protection of the glass products.

[0010] 2. The present utility model places the glass bottle on the first conveyor belt. The first conveyor belt drives the glass bottle to move. At the same time, the pushing plate on the first conveyor belt pushes the glass bottle to move stably, avoiding the phenomenon of jamming during the conveying process of the glass bottle, realizing the stable conveying of the glass bottle, and being beneficial to improving the conveying efficiency. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 It is a schematic three-dimensional structure diagram from the first perspective;

[0013] Figure 2 It is a schematic three-dimensional structure diagram of the sorting component;

[0014] Figure 3 It is a schematic three-dimensional structure diagram of the clamping plate;

[0015] Figure 4 It is a schematic three-dimensional structure diagram at the first conveyor belt;

[0016] Figure 5 It is a schematic three-dimensional structure diagram of the conveying component.

[0017] In the figure: 1. Base; 2. Fixed frame; 3. Control panel; 4. First guide plate; 5. First chute; 6. First stepping motor; 7. First slider; 8. Mounting frame; 9. Hydraulic cylinder; 10. Hydraulic rod; 11. Second guide plate; 12. Indicator light; 13. Second chute; 14. Second stepping motor; 15. Second slider; 16. Clamping plate; 17. Assembly groove; 18. Moving plate; 19. Limiting block; 20. First electrode plate; 21. Second electrode plate; 22. Spring; 23. First support frame; 24. First rotating rod; 25. First roller; 26. First conveyor belt; 27. First gear; 28. First drive chain; 29. First drive motor; 30. Pushing plate; 31. Support plate; 32. Electronic scale; 33. Weighing box; 34. Second conveyor belt; 35. Third conveyor belt. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-3As shown in the figure, a sorting machine for transporting glass products includes a base 1. Two sets of fixing frames 2 are welded on the base 1. A control panel 3 is installed on the fixing frames 2. A sorting component is installed on the fixing frames 2. A clamping component is installed on the sorting component. The clamping component includes a second guide plate 11. An indicator light 12 is installed on the second guide plate 11. A second chute 13 is opened on the second guide plate 11. A second stepping motor 14 is installed on the side wall of the second guide plate 11 through a machine base. A second lead screw is installed on the output shaft of the second stepping motor 14. The second lead screw is rotatably installed between the inner walls of the second chute 13. The thread directions on the second lead screw are symmetrically opposite. Two sets of second sliders 15 are symmetrically assembled in the second chute 13. A clamping plate 16 is installed on the bottom side of the second slider 15. An assembly groove 17 is opened in one of the clamping plates 16. A moving plate 18 is assembled in the assembly groove 17. A limiting block 19 is welded on the side wall of the moving plate 18. The limiting block 19 is fixedly connected to the moving plate 18. A first electrode plate 20 is installed on the side wall of the limiting block 19. A second electrode plate 21 is installed on the inner wall of the assembly groove 17. A spring 22 is installed between the side wall of the limiting block 19 and the inner wall of the assembly groove 17. The second stepping motor 14 and the indicator light 12 are connected to the control panel 3 through an internal circuit. The indicator light 12 is connected to the first electrode plate 20 and the second electrode plate 21 through an internal circuit. The sorting component includes a first guide plate 4. The first guide plate 4 is fixedly connected to the fixing frame 2. A first chute 5 is opened inside the first guide plate 4. A first stepping motor 6 is installed on the side wall of the first guide plate 4 through a machine base. A first lead screw is installed on the output shaft of the first stepping motor 6. The first lead screw is rotatably installed between the inner walls of the first chute 5. A first slider 7 is assembled in the first chute 5. An installation frame 8 is welded on the bottom side of the first slider 7. A hydraulic cylinder 9 is installed on the installation frame 8. A hydraulic rod 10 is installed on the hydraulic cylinder 9. The hydraulic rod 10 penetrates through the bottom plate of the installation frame 8 and is fixedly connected to the second guide plate 11 at the bottom side. The first stepping motor 6 is connected to the control panel 3 through an internal circuit;During operation, when the existing sorting machine sorts glass products, it clamps and transports the glass products through a fixture. Since the fixture cannot control the clamping force on it, the clamping force is likely to be too large and damage the glass products, resulting in poor protection for the glass products. The glass bottle falls from the first conveyor belt 26 onto the weighing box 33, and the electronic scale 32 weighs the glass bottle. Then, the hydraulic cylinder 9 operates, and the hydraulic rod 10 drives the second guide plate 11 to move vertically downward. The second guide plate 11 drives the two groups of clamping plates 16 on it to move vertically downward. The two groups of clamping plates 16 are located at both ends of the glass bottle. The control panel 3 controls the operation of the second stepping motor 14, driving the second lead screw to rotate. The second lead screw drives the two groups of second sliders 15 on it to move synchronously relative to each other. The two groups of second sliders 15 drive the two groups of clamping plates 16 to move synchronously relative to each other. The two groups of clamping plates 16 move towards the glass bottle. During the process of the clamping plates 16 moving towards the glass bottle, the moving plate 18 first contacts the glass bottle, and the moving plate 18 is pushed into the assembly groove 17. The moving plate 18 drives the limit block 19 to move. At the moment when the two groups of clamping plates 16 simultaneously contact the glass bottle, the moving plate 18 is completely pushed into the assembly groove 17, and the first electrode plate 20 on the limit block 19 contacts the second electrode plate 21. The internal circuit of the indicator light 12 is connected, and the indicator light 12 sends an electrical signal to the control panel 3. After receiving the electrical signal, the control panel 3 controls the second stepping motor 14 to stop operating. That is, at the moment when the two groups of clamping plates 16 clamp the glass bottle, the control panel 3 controls the two groups of clamping plates 16 to stop moving. At this time, the clamping force on the clamping plates 16 is appropriate;

[0020] After the two groups of clamping plates 16 clamp the glass bottle, the hydraulic rod 10 drives the second guide plate 11 to move vertically upward. The control panel 3 controls the operation of the sorting component, that is, the first stepping motor 6 operates, driving the first lead screw to rotate. The first lead screw drives the first slider 7 to move horizontally. The first slider 7 drives the clamping component to move horizontally, realizing the sorting of the glass bottle. This structure avoids damage to the glass products caused by excessive clamping force and is beneficial to improving the protection of the glass products.

[0021] Please refer to Figures 4-5As shown in the figure, a first conveying component, a second conveying component and a third conveying component are installed on the base 1. The first conveying component includes a first support frame 23. Two groups of first rotating rods 24 are rotatably installed on the first support frame 23. A first roller 25 is sleeved on the first rotating rod 24. A first conveyor belt 26 is sleeved on the two groups of first rollers 25. A first gear 27 is sleeved on the first rotating rod 24. A first transmission chain 28 is sleeved on the two groups of first gears 27. A first driving motor 29 is installed on the side wall of the first support frame 23 through a machine base. The output shaft of the first driving motor 29 is fixedly connected to the first rotating rod 24. The internal structures of the first conveying component, the second conveying component and the third conveying component are the same. A second conveyor belt 34 is rotatably installed in the second conveying component. A third conveyor belt 35 is rotatably installed in the third conveying component. Among them, multiple groups of pushing plates 30 are installed on the first conveyor belt 26 of the first support frame 23. Two groups of support plates 31 are symmetrically installed on the base 1. An electronic scale 32 is fixedly installed on the support plate 31. A weighing sensor is assembled inside the electronic scale 32. A weighing box 33 is fixedly installed on the electronic scale 32. A foam board is placed inside the weighing box 33. The weighing sensor is connected to the control panel 3 through an internal circuit; during operation, during the sorting process of glass products by the existing sorting machine, it is necessary to convey the glass products. Since the glass products are prone to jamming during the conveying process, the conveying efficiency is relatively low. By placing the glass bottle on the first conveyor belt 26, the first driving motor 29 operates to drive the first rotating rod 24 thereon to rotate. The first rotating rod 24 drives the first gear 27 thereon to rotate. The first gear 27 drives the first transmission chain 28 to rotate. The first transmission chain 28 drives the other first gear 27 to rotate, that is, the two first gears 27 rotate synchronously, driving the two first rotating rods 24 to rotate synchronously. The two first rotating rods 24 drive the two first rollers 25 to rotate synchronously. The two first rollers 25 drive the first conveyor belt 26 to rotate. The first conveyor belt 26 drives the glass bottle to move. At the same time, the pushing plate 30 on the first conveyor belt 26 pushes the glass bottle to move stably, avoiding the phenomenon of jamming of the glass bottle during the conveying process, and realizing the stable conveying of the glass bottle;

[0022] When the glass bottle moves to the discharge end of the first conveyor belt 26, the glass bottle falls from the first conveyor belt 26 onto the weighing box 33. The electronic scale 32 weighs the glass bottle. The weighing sensor inside the electronic scale 32 converts the gravity signal into an electrical signal and sends it to the control panel 3. The model of the weighing sensor is SQC-A. When the gravity of the glass bottle is relatively heavy, the sorting component sorts the glass bottle onto the second conveyor belt 34. When the gravity of the glass bottle is relatively light, the sorting component sorts the glass bottle onto the third conveyor belt 35 for packing and transportation of the glass bottle. This structure can stably convey the glass bottle, which is beneficial to improving the conveying efficiency.

[0023] Working principle: During the sorting process of glass products by the existing sorting machine, it is necessary to convey the glass products. However, during the conveying process of the glass products, jamming easily occurs, resulting in low conveying efficiency. By placing the glass bottle on the first conveyor belt 26, the first drive motor 29 operates to drive the first rotating rod 24 thereon to rotate. The first rotating rod 24 drives the first gear 27 thereon to rotate. The first gear 27 drives the first transmission chain 28 to rotate. The first transmission chain 28 drives another first gear 27 to rotate, that is, the two first gears 27 rotate synchronously, driving the two first rotating rods 24 to rotate synchronously. The two first rotating rods 24 drive the two first rollers 25 to rotate synchronously. The two first rollers 25 drive the first conveyor belt 26 to rotate. The first conveyor belt 26 drives the glass bottle to move. At the same time, the pusher plate 30 on the first conveyor belt 26 pushes the glass bottle to move stably, avoiding the phenomenon of jamming during the conveying process of the glass bottle, and realizing the stable conveying of the glass bottle. When the glass bottle moves to the discharge end of the first conveyor belt 26, the glass bottle falls from the first conveyor belt 26 onto the weighing box 33. The electronic scale 32 weighs the glass bottle. The weighing sensor inside the electronic scale 32 converts the gravity signal into an electrical signal and sends it to the control panel 3. The model of the weighing sensor is SQC-A. When the gravity of the glass bottle is relatively heavy, the sorting component sorts the glass bottle onto the second conveyor belt 34. When the gravity of the glass bottle is relatively light, the sorting component sorts the glass bottle onto the third conveyor belt 35 for packing and transportation. This structure can stably convey the glass bottle, which is beneficial to improving the conveying efficiency;During the sorting process of existing sorting machines for glass products, the glass products are clamped and transported by fixtures. Since the fixtures cannot control the clamping force on them, the clamping force is likely to be too large and cause damage to the glass products, resulting in poor protection for the glass products. The glass bottle falls from the first conveyor belt 26 onto the weighing box 33, and the electronic scale 32 weighs the glass bottle. Then, the hydraulic cylinder 9 operates, and the hydraulic rod 10 drives the second guide plate 11 to move vertically downward. The second guide plate 11 drives the two groups of clamping plates 16 on it to move vertically downward. The two groups of clamping plates 16 are located at both ends of the glass bottle. By controlling the operation of the second stepping motor 14 through the control panel 3, the second lead screw is driven to rotate. The second lead screw drives the two groups of second sliders 15 on it to move synchronously and relatively. The two groups of second sliders 15 drive the two groups of clamping plates 16 to move synchronously and relatively. The two groups of clamping plates 16 move towards the glass bottle. During the process of the clamping plates 16 moving towards the glass bottle, the moving plate 18 first contacts the glass bottle, and the moving plate 18 is pushed into the assembly groove 17. The moving plate 18 drives the limit block 19 to move. At the moment when the two groups of clamping plates 16 simultaneously contact the glass bottle, the moving plate 18 is completely pushed into the assembly groove 17 at this time, and the first electrode plate 20 on the limit block 19 contacts the second electrode plate 21, and the internal circuit of the indicator light 12 is connected. The indicator light 12 sends an electrical signal to the control panel 3. After receiving the electrical signal, the control panel 3 controls the second stepping motor 14 to stop operating, that is, at the moment when the two groups of clamping plates 16 clamp the glass bottle, the control panel 3 controls the two groups of clamping plates 16 to stop moving. At this time, the clamping force on the clamping plates 16 is appropriate; after the two groups of clamping plates 16 clamp the glass bottle, the hydraulic rod 10 drives the second guide plate 11 to move vertically upward. By controlling the operation of the sorting component through the control panel 3, that is, the first stepping motor 6 operates, driving the first lead screw to rotate. The first lead screw drives the first slider 7 to move horizontally. The first slider 7 drives the clamping component to move horizontally, realizing the sorting of the glass bottle. This structure avoids damage to the glass products caused by excessive clamping force and is beneficial to improving the protection of the glass products.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A sorting machine for transporting glass products, characterized in that: It includes a base (1), two sets of fixing frames (2) are welded on the base (1), a control panel (3) is installed on the fixing frames (2), a sorting component is installed on the fixing frames (2), a clamping component is installed on the sorting component, the clamping component includes a second guide plate (11), an indicator light (12) is installed on the second guide plate (11), a second chute (13) is opened on the second guide plate (11), a second stepping motor (14) is installed on the side wall of the second guide plate (11) through a machine base, a second lead screw is installed on the output shaft of the second stepping motor (14), the second lead screw is rotatably installed between the inner walls of the second chute (13), the thread directions on the second lead screw are symmetrically opposite, two sets of second sliders (15) are symmetrically assembled in the second chute (13), a clamping plate (16) is installed on the bottom side of the second slider (15), an assembly groove (17) is opened in one of the clamping plates (16), a moving plate (18) is assembled in the assembly groove (17), a limiting block (19) is welded on the side wall of the moving plate (18), the limiting block (19) is fixedly connected to the moving plate (18), a first electrode plate (20) is installed on the side wall of the limiting block (19), a second electrode plate (21) is installed on the inner wall of the assembly groove (17), and a spring (22) is installed between the limiting block (19) and the inner wall of the assembly groove (17).

2. The sorting machine for transporting glass products according to claim 1, wherein: The second stepping motor (14) and the indicator light (12) are connected to the control panel (3) through an internal circuit, and the indicator light (12) is connected to the first electrode plate (20) and the second electrode plate (21) through an internal circuit.

3. A sorting machine for transporting glass products according to claim 1, characterized in that: The sorting component includes a first guide plate (4), the first guide plate (4) is fixedly connected to the fixing frame (2), a first chute (5) is opened inside the first guide plate (4), a first stepping motor (6) is installed on the side wall of the first guide plate (4) through a machine base, a first lead screw is installed on the output shaft of the first stepping motor (6), the first lead screw is rotatably installed between the inner walls of the first chute (5), a first slider (7) is assembled in the first chute (5), a mounting frame (8) is welded on the bottom side of the first slider (7), a hydraulic cylinder (9) is installed on the mounting frame (8), a hydraulic rod (10) is installed on the hydraulic cylinder (9), the hydraulic rod (10) penetrates through the bottom plate of the mounting frame (8) and is fixedly connected to the second guide plate (11) at the bottom side, and the first stepping motor (6) is connected to the control panel (3) through an internal circuit.

4. A sorting machine for transporting glass products according to claim 1, wherein: A first conveying assembly, a second conveying assembly and a third conveying assembly are installed on the base (1). The first conveying assembly includes a first support frame (23). Two groups of first rotating rods (24) are rotatably installed on the first support frame (23). A first roller (25) is sleeved on the first rotating rod (24). A first conveyor belt (26) is sleeved on the two groups of first rollers (25). A first gear (27) is sleeved on the first rotating rod (24). A first transmission chain (28) is sleeved on the two groups of first gears (27). A first driving motor (29) is installed on the side wall of the first support frame (23) through a machine base. The output shaft of the first driving motor (29) is fixedly connected to the first rotating rod (24).

5. A sorting machine for transporting glass products according to claim 4, characterized in that: The internal structures of the first conveying assembly, the second conveying assembly and the third conveying assembly are the same. A second conveyor belt (34) is rotatably installed inside the second conveying assembly. A third conveyor belt (35) is rotatably installed inside the third conveying assembly. Among them, multiple groups of pushing plates (30) are installed on the first conveyor belt (26) of the first support frame (23).

6. The sorting machine for transporting glass products according to claim 1, wherein: Two groups of support plates (31) are symmetrically installed on the base (1). An electronic scale (32) is fixedly installed on the support plate (31). A weighing sensor is assembled inside the electronic scale (32). A weighing box (33) is fixedly installed on the electronic scale (32). A foam board is placed inside the weighing box (33). The weighing sensor is connected to the control panel (3) through an internal circuit.

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