A gastrointestinal decompression device for the digestive system

Abstract

The present invention provides a gastrointestinal decompression device for a digestive system, which relates to the field of medical devices. A gastrointestinal decompression device for a digestive system comprises a storage box, a control system and a coil device. The storage box comprises a base, an upper cover and a rotating table. The base is a circular barrel structure. The upper cover can be buckled on the base, and an annular slide is arranged on the bottom wall of the base. The annular slide is arranged concentrically with the base, and the rotating table is annular and arranged in the annular slide, so that the rotating table can rotate in the annular slide. Compared with the prior art, the beneficial effect of the present invention is: the control system controls the screw motor to control the sealing end and the docking cannula to detach from the current negative pressure suction box, and then the control system controls the servo motor to drive the rotating table to rotate 90°, so that other negative pressure suction boxes are moved to the position of the sealing end, so that the negative pressure suction box replacement operation can be completed without stopping the negative pressure suction machine.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and specifically to a gastrointestinal decompression device for the digestive system. Background Art

[0002] The gastrointestinal decompression device mainly consists of a gastrointestinal decompression tube and a negative pressure drainage device. Based on the principle of negative pressure suction, the gastric tube is inserted into the stomach through the oral cavity or nasal cavity, so as to suck out the liquid, food residues, etc. in the stomach, achieving the effect of reducing the pressure in the gastrointestinal tract. A gastrointestinal decompression device with the publication number of CN118161679A is retrieved, which includes a base. A column is arranged on the upper surface of the base, and a protective box is arranged on the upper surface of the column. A lifting placement plate is movably installed inside the column. The gastrointestinal decompressor is clamped and fixedly installed on the lifting placement plate through a compression limiting mechanism. The compression limiting mechanism includes a mounting seat, and the mounting seat is arranged at the rear end of the upper surface of the lifting placement plate. A limiting plate is slidably installed inside the mounting seat. A push block is movably installed inside the limiting plate. The front end of the push block is rotatably connected to a rotating rod. Both the left and right sides of the push block are abutted against insertion blocks. Connecting blocks are arranged at the rear sides of both insertion blocks. Both connecting blocks are movably connected to the inside of the limiting plate through a first spring. Slots matching the insertion blocks are opened on the inner walls of the left and right sides at the lower end of the mounting seat.

[0003] However, in the above technology, the negative pressure suction bottle is positioned by the lifting placement plate to improve the stability of the negative pressure suction bottle. However, when it is necessary to replace the negative pressure suction bottle, the operation is very cumbersome and inconvenient. Summary of the Invention

[0004] The problem to be solved by the present invention is that the rotating table drives the negative pressure suction box to rotate, so that while improving the stability of the negative pressure suction box, the operation of replacing the negative pressure suction box can be made more simple and convenient.

[0005] To achieve the above object, the technical solution adopted by the present invention is a gastrointestinal decompression device for the digestive system, which includes a storage box, a control system and a coiled tube device. The storage box includes a base, an upper cover and a rotating table. It is characterized in that: the base is a circular barrel-shaped structure, the upper cover can be buckled on the base, and an annular slideway is provided on the bottom wall of the base. The annular slideway and the base are concentrically arranged. The rotating table is annular and is arranged in the annular slideway, so that the rotating table can rotate in the annular slideway. A partition board is arranged on the rotating table, and the partition board is perpendicular to the upper surface of the rotating table. The partition boards are arranged at equal distances along the rotating table. The partition boards divide the rotating table into four storage spaces of the same size. A negative pressure suction box is arranged in the storage space. The negative pressure suction box is in the storage space. The upper end of the negative pressure suction box is an open end, and an inclined surface is provided at the upper end of the negative pressure suction box. A sealing end is provided at the lower end of the upper cover, and the sealing end can be attached to the inclined surface to form a sealed space for the negative pressure suction box. An electric motor groove is also provided on the upper cover, and a lead screw motor is arranged in the electric motor groove. The lead screw motor is connected to the control system, and the control system can control the start and stop of the lead screw motor. The slider of the lead screw motor is connected to the sealing end. A central column is also provided on the lower surface of the upper cover, and a servo motor is arranged in the central column. The servo motor is connected to the control system, and the servo motor can drive the rotating table to rotate. The angle of a single rotation of the servo motor is 90°.

[0006] Preferably, a plugging hole is provided on the side wall of the negative pressure suction box, and a docking cannula is provided on the side wall of the base. The docking cannula penetrates the side wall of the base, and the docking cannula can slide on the side wall of the base. A nasogastric tube can be connected to the docking cannula.

[0007] Preferably, a negative pressure machine socket is also provided on the sealing end, and a connecting plate is also provided on the sealing end. The docking cannula can be screwed onto the connecting plate, so that the sealing end can drive the docking cannula to move through the connecting plate.

[0008] Preferably, a rotation limiting groove is provided on the rotating table, and a rotating part is provided at the lower end of the central column. The output shaft of the servo motor is connected to the rotating part, and the rotating part can rotate following the output shaft. When the rotating part is inserted into the rotation limiting groove, the rotating part can be driven by the servo motor to rotate, so that the rotating part cooperates with the rotation limiting groove to drive the rotating table to rotate.

[0009] Preferably, a weighing sensor is provided at the bottom of each storage space on the rotating table. The weighing sensor can detect the weight of the negative pressure suction box in the storage space, and the weighing sensor is connected to the control system.

[0010] Preferably, a coiled tube device is provided at the lower end of the storage box. The coiled tube device includes a coiled tube box and a reel. The coiled tube box is a cylindrical barrel-shaped structure, and the reel is arranged in the coiled tube box. The nasogastric tube can be wound on the reel.

[0011] Preferably, an oil storage bin and a lubricating ring are provided on the side wall of the coil box. Paraffin oil is provided in the oil storage bin. The oil storage bin is connected to the lubricating ring, and the nasogastric tube can pass through the lubricating ring.

[0012] Preferably, a magnetic sheet is further provided on the side wall of the coil box. A protective cover is magnetically connected to the magnetic sheet. The inside of the protective cover is of a barrel structure, and a silica gel kit is provided inside the protective cover. The free end of the nasogastric tube can be inserted into the silica gel kit.

[0013] Preferably, the control system includes a PLC controller, a digital module, an analog input module, a control module, and a communication module. The PLC controller can receive and issue instructions through the digital module, and control the start, stop, and precise positioning of the servo motor and the lead screw motor through the control module. The analog input module can convert the weight information detected by the weighing sensor into a digital signal and transmit it to the PLC controller, and the PLC controller analyzes and processes the received signal after receiving it.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By monitoring the weight of the negative pressure suction box through the weighing sensor, when the weight of the negative pressure suction box reaches the set threshold, the lead screw motor is controlled by the control system to separate the sealing end and the docking cannula from the current negative pressure suction box. Then, the control system will control the servo motor to drive the rotating table to rotate 90°, so that other negative pressure suction boxes move to the position of the sealing end, and control the sealing end to seal the negative pressure suction box. At the same time, the docking cannula is inserted into the insertion hole of the negative pressure suction box, so that the replacement operation of the negative pressure suction box can be completed without stopping the negative pressure suction machine. Therefore, during the use process, gastric juice can be sampled separately, or different nasogastric tubes can be connected through the docking cannula to quickly perform gastric juice extraction operations for different patients. And during the use process, the upper cover can also be opened to take out the negative pressure suction box for sampling, cleaning, or replacement operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the inclined surface structure of the present invention;

[0017] Figure 3 is a schematic diagram of the internal structure of the base of the present invention;

[0018] Figure 4 is a schematic diagram of the rotating table of the present invention;

[0019] Figure 5 is a schematic diagram of the upper cover structure of the present invention;

[0020] Figure 6Schematic cross-sectional structure diagram of the column of the present invention;

[0021] Figure 7 Schematic cross-sectional structure diagram of the coil pipe box of the present invention;

[0022] Wherein, 1 - base, 2 - upper cover, 3 - rotating table, 4 - partition board, 5 - negative pressure suction box, 6 - insertion hole, 7 - docking insertion pipe, 8 - inclined surface, 9 - sealing end, 10 - negative pressure machine socket, 11 - connecting plate, 12 - screw motor, 13 - rotation limit groove, 14 - central column, 15 - rotating part, 16 - servo motor, 17 - weighing sensor, 18 - coil pipe box, 19 - reel, 20 - lubricating ring, 21 - protective sleeve, 22 - magnetic sheet. Specific embodiments

[0023] 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.

[0024] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0026] Refer to Figures 1 to 7As shown in the figure, a gastrointestinal decompression device for the digestive system includes a storage box, a control system, and a coil tube device. The cross-section of the storage box is circular. The storage box includes a base 1, an upper cover 2, and a rotating table 3. The base 1 is a circular barrel-shaped structure. The upper cover 2 can be buckled on the base 1. An annular slideway is provided on the bottom wall of the base 1. The annular slideway and the base 1 are concentrically arranged. The rotating table 3 is annular and is arranged in the annular slideway, so that the rotating table 3 can rotate in the annular slideway. A partition plate 4 is provided on the rotating table 3. The partition plate 4 is perpendicular to the upper surface of the rotating table 3. The partition plates 4 are arranged at equal distances along the rotating table 3. The partition plates 4 divide the rotating table 3 into four storage spaces of the same size. A negative pressure suction box 5 is provided in the storage space. The negative pressure suction box 5 is in the storage space. The negative pressure suction box 5 can be taken out of or reinserted into the storage space. The upper end of the negative pressure suction box 5 is an open end. A plug hole 6 is provided on the side wall of each negative pressure suction box 5. A docking cannula 7 is provided on the side wall of the base 1. The docking cannula 7 penetrates through the side wall of the base 1, and the docking cannula 7 can slide on the side wall of the base 1. The horizontal height of the docking cannula 7 is the same as the horizontal height of the plug hole 6, so that the docking cannula 7 can be inserted into the plug hole 6. The docking cannula 7 located outside the storage box can be connected to a nasogastric tube, so that the nasogastric tube is communicated with the negative pressure suction box 5;

[0027] And a sealing end 9 is provided at the lower end of the upper cover 2, and an inclined surface 8 is provided at the upper end of each negative pressure suction box 5. The cross-section of the sealing end 9 is fan-shaped, and the vertical section shape of the sealing end 9 is a right triangle. The inclined surface of the sealing end 9 is arranged opposite to the inclined surface 8. When the sealing end 9 contacts the inclined surface 8, a closed space can be formed in the negative pressure suction box 5. The sealing end 9 is also provided with a negative pressure machine socket 10, and the negative pressure machine socket 10 penetrates through the sealing end 9. When the negative pressure machine socket 10 is connected to the intubation tube of the negative pressure machine, the air in the negative pressure suction box 5 can be extracted by the negative pressure machine, and the gastric juice of the human body can be extracted through the insertion hole 6 and the docking intubation tube 7. A connecting plate 11 is also provided on the sealing end 9, and the sealing end 9 is connected to the docking intubation tube 7 through the connecting plate 11. The docking intubation tube 7 is screwed onto the connecting plate 11 by threads, which is more convenient for disassembly and installation when replacement or cleaning is needed, enabling the sealing end 9 to drive the docking intubation tube 7 to move through the connecting plate 11. And a motor groove is provided on the upper cover 2, and a lead screw motor 12 is arranged in the motor groove. The lead screw motor 12 is connected to the control system, and the control system can control the start and stop of the lead screw motor 12. The slider of the lead screw motor 12 is connected to the sealing end 9, enabling the lead screw motor 12 to control the movement of the sealing end 9, and thus driving the movement of the docking intubation tube 7 through the sealing end 9. When the lead screw motor 12 drives the sealing end 9 to move inward and the sealing end 9 contacts the inclined surface 8 to form a closed space in the negative pressure suction box 5, the docking intubation tube 7 will move along with the sealing end 9, so that the docking intubation tube 7 is inserted into the insertion hole 6. When the lead screw motor 12 controls the sealing end 9 to move outward, the sealing end 9 is separated from the inclined surface 8, so that the negative pressure suction box 5 cannot form a closed space. At this time, the docking intubation tube 7 moves along with the sealing end 9 and thus disengages from the insertion hole 6.

[0028] Wherein a rotation limit groove 13 is provided on the rotary table 3, and a central column 14 is provided on the lower surface of the upper cover 2. A rotary member 15 is provided at the lower end of the central column 14. A servo motor 16 is arranged in the central column 14. The servo motor 16 is connected to the control system, and the output shaft of the servo motor 16 is connected to the rotary member 15. The rotary member 15 can rotate following the output shaft. When the rotary member 15 is inserted into the rotation limit groove 13, the rotary member 15 can be driven to rotate by the servo motor 16, so that the rotary member 15 cooperates with the rotation limit groove 13 to drive the rotary table 3 to rotate. The servo motor 16 controls the angle of a single rotation of the servo motor 16 to be only 90° through its built-in encoder. Therefore, as long as the starting position is ensured to be correct, the rotary table 3 can be accurately rotated by the servo motor 16. And a weighing sensor 17 is provided at the bottom of each storage space on the rotary table 3. The weighing sensor 17 can detect the weight of the negative pressure suction box 5 in the storage space, and the weighing sensor 17 is connected to the control system. The weighing sensor 17 can transmit the detected weight information to the control system.

[0029] A coiling device is provided at the lower end of the storage box. The coiling device includes a coiling box 18 and a reel 19. The coiling box 18 is a cylindrical barrel-shaped structure with an accommodation space inside. A limiting strip is provided at the upper end of the coiling box 18, and a limiting card slot matching the limiting strip is provided at the lower end of the base 1. The limiting strip can be inserted into the limiting card slot, so that the coiling box 18 is connected to the base 1. The reel 19 is arranged inside the coiling box 18. The nasogastric tube can be stored on the reel 19, and the nasogastric tube is coiled around the reel 19. A storage oil tank and a lubricating ring 20 are provided on the side wall of the coiling box 18. Paraffin oil is provided in the storage oil tank, and the storage oil tank is connected to the lubricating ring 20. The nasogastric tube can pass through the lubricating ring 20. When the nasogastric tube passes through the lubricating ring 20, the outer surface of the nasogastric tube is coated with paraffin oil in a way of oil ring lubrication, so that it is more convenient for the nasogastric tube to enter the human stomach through the nasal cavity. A magnetic sheet 22 is also provided on the side wall of the coiling box 18. A protective cover 21 is magnetically connected to the magnetic sheet 22. The inside of the protective cover 21 is a barrel-shaped structure, and a silica gel kit is provided inside the protective cover 21. The free end of the nasogastric tube can be inserted into the silica gel kit to prevent the free end of the nasogastric tube from falling into the coiling box 18.

[0030] The control system includes a PLC controller, a digital module, an analog input module, a control module, and a communication module. The PLC controller can receive and issue instructions through the digital module, and control the start, stop, and precise positioning of the servo motor 16 and the lead screw motor 12 through the control module. The analog input module can convert the weight information detected by the weighing sensor 17 into a digital signal and transmit it to the PLC controller. After receiving the signal, the PLC controller analyzes and processes it. When the device starts, the PLC controller will control the lead screw motor 12 to operate through the control module, so that the lead screw motor 12 drives the sealing end 9 to move, making the sealing end 9 fit with the inclined surface 8. At the same time, the docking cannula 7 is inserted into the insertion hole 6. Subsequently, the negative pressure suction machine is started to extract the gastric juice into the negative pressure suction box 5. When the weight in the negative pressure suction box 5 reaches the set threshold, the PLC controller will control the lead screw motor 12 to start through the control module, separating the sealing end 9 from the inclined surface 8 and separating the docking cannula 7 from the insertion hole 6 at the same time. Then the PLC controller will control the servo motor 16 to start through the control module, so that the rotating part 15 drives the rotating table 3 to rotate, thereby driving the negative pressure suction box 5 in the storage space to rotate, and rotating the used negative pressure suction box 5 to a position away from the sealing end 9 and the docking cannula 7. After the servo motor 16 controls the rotating table 3 to rotate 90°, the next negative pressure suction box 5 can be connected to the sealing end 9 and the docking cannula 7. At the same time, the PLC controller controls the lead screw motor 12 through the control module, so that the lead screw motor 12 drives the sealing end 9 to move, making the sealing end 9 fit with the inclined surface 8, and at the same time driving the docking cannula 7 to insert the docking cannula 7 into the insertion hole 6 to continue extracting the gastric juice. When the weights of all four negative pressure suction boxes 5 exceed the threshold, the PLC controller will control the lead screw motor 12 to drive the sealing end 9 away from the inclined surface 8 through the control module, and the negative pressure suction box 5 cannot form a seal. In addition, instructions can be issued to the PLC controller through the communication module to adjust the threshold of the weight of the negative pressure suction box 5.

[0031] When in use, first remove the protective cover 21 from the magnetic sheet 22, pull out the free end of the nasogastric tube from the silicone kit, and then pass the nasogastric tube through the human nasal cavity into the stomach, and then retain a suitable length, and cut off the nasogastric tube after retaining a certain length near the lubricating ring 20. At this time, one end of the nasogastric tube is inserted into the human stomach, and the other end of the nasogastric tube needs to be connected to the docking cannula 7, so that the nasogastric tube is connected to the negative pressure suction box 5 through the docking cannula 7, and then the negative pressure suction machine is connected to the negative pressure machine socket 10, and then the equipment is started to operate the control system, and the PLC controller in the control system controls the The control module controls the screw motor 12 to drive the sealing end 9 to move, so that the sealing end 9 contacts the inclined surface 8 of the negative pressure suction box 5, and at the same time, the docking tube 7 is inserted into the plug hole 6, and then the negative pressure suction machine is started. Through the operation of the negative pressure suction machine, the gastric fluid is drawn into the negative pressure suction box 5, and the weighing sensor 17 will detect the weight of the negative pressure suction box 5, and then transmit the detection result to the PLC controller through the analog input module. When the gastric fluid in the negative pressure suction box 5 reaches a certain amount and the overall weight of the negative pressure suction box 5 exceeds the set threshold, the PLC controller controls the screw motor through the control module 12 drives the receiving end to move, so that the receiving end drives the docking cannula 7 to move, so that the docking cannula 7 is separated from the plug hole 6 on the side wall of the negative pressure suction box 5. At this time, even if the negative pressure suction machine is still in a working state, it is impossible to extract gastric juice through the nasogastric tube. Then the PLC controller controls the servo motor 16 to rotate through the control module, so that the servo motor 16 drives the rotating table 3 to rotate 90° through the rotating member 15, so that the negative pressure suction box 5 whose weight reaches the threshold value is separated from the area where the sealing end 9 and the docking cannula 7 are located, and other negative pressure suction boxes 5 are located in the area where the sealing end 9 and the docking cannula 7 are located. domain, after the screw motor 12 completes its rotation, the PLC controller controls the screw motor 12 to start through the control module, controls the movement of the sealing end 9, and makes the sealing end 9 fit with the inclined surface 8 of the negative pressure suction box 5. At the same time, the docking tube 7 is inserted into the plug hole 6 on the side wall of the negative pressure suction box 5, so that the negative pressure suction box 5 forms a sealed state. At this time, the negative pressure suction machine can extract gastric juice into the negative pressure suction box 5. In this way, during the gastric juice extraction process, the operation of automatically replacing the negative pressure suction box 5 can be realized even if there is no one on duty, thereby reducing labor costs, improving efficiency and increasing safety.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gastrointestinal decompression device for the digestive system, comprising a storage box, a control system and a coiled tube device. The storage box includes a base, an upper cover and a rotating table, characterized in that: The base is a circular barrel-shaped structure. A docking insertion tube is provided on the side wall of the base. The upper cover can be buckled on the base. And an annular slideway is provided on the bottom wall of the base. The annular slideway and the base are concentrically arranged. The rotating table is annular and is arranged in the annular slideway, so that the rotating table can rotate in the annular slideway. A partition plate is provided on the rotating table. The partition plate is perpendicular to the upper surface of the rotating table. The partition plates are arranged at equal distances along the rotating table. The partition plates divide the rotating table into four storage spaces of the same size. A negative pressure suction box is provided in the storage space. The negative pressure suction box is in the storage space. The upper end of the negative pressure suction box is an open end. A plug hole is provided on the side wall of the negative pressure suction box. And an inclined surface is provided at the upper end of the negative pressure suction box. The lower end of the upper cover is provided with a sealing end. The sealing end can be attached to the inclined surface, so that the negative pressure suction box forms a sealed space. A negative pressure machine socket and a connecting plate are also provided on the sealing end. The sealing end is connected to the docking insertion tube through the connecting plate. A motor groove is also provided on the upper cover. A lead screw motor is provided in the motor groove. The lead screw motor is connected to the control system. The control system can control the start and stop of the lead screw motor. And the slider of the lead screw motor is connected to the sealing end, so that the lead screw motor can control the movement of the sealing end. When the lead screw motor drives the sealing end to move inward to form a sealed space for the negative pressure suction box, the docking insertion tube moves with the sealing end, so that the docking insertion tube is inserted into the plug hole. A central column is also provided on the lower surface of the upper cover. A servo motor is provided in the central column. The servo motor is connected to the control system. The servo motor can drive the rotating table to rotate. The angle of a single rotation of the servo motor is 90°.

2. The gastrointestinal decompression device for the digestive system according to claim 1, characterized in that: A rotation limit groove is provided on the rotating table. A rotating part is provided at the lower end of the central column. And the output shaft of the servo motor is connected to the rotating part. The rotating part can rotate following the output shaft. When the rotating part is inserted into the rotation limit groove, the rotating part can be driven to rotate by the servo motor, so that the rotating part cooperates with the rotation limit groove to drive the rotating table to rotate.

3. The gastrointestinal decompression device for the digestive system according to claim 1, characterized in that: A weighing sensor is provided at the bottom of each storage space on the rotating table. The weighing sensor can detect the weight of the negative pressure suction box in the storage space. And the weighing sensor is connected to the control system.

4. The gastrointestinal decompression device for the digestive system according to claim 1, wherein: A coiling device is provided at the lower end of the storage box. The coiling device includes a coiling box and a reel. The coiling box is a cylindrical barrel-shaped structure. The reel is provided in the coiling box. The reel can coil the nasogastric tube.

5. The gastrointestinal decompression device for the digestive system according to claim 4, wherein: An oil storage bin and a lubricating ring are provided on the side wall of the coiling box. Paraffin oil is provided in the oil storage bin. The oil storage bin is connected to the lubricating ring. The nasogastric tube can pass through the lubricating ring.

6. The gastrointestinal decompression device for the digestive system according to claim 4 or 5, characterized in that: A magnetic sheet is also provided on the side wall of the coiling box. A protective cover is magnetically connected to the magnetic sheet. The inside of the protective cover is a barrel-shaped structure. And a silica gel kit is provided inside the protective cover. The free end of the nasogastric tube can be inserted into the silica gel kit.

7. The gastrointestinal decompression device for the digestive system according to claim 1, wherein: The control system includes a PLC controller, a digital module, an analog input module, a control module, and a communication module. The PLC controller can receive and issue instructions through the digital module, and control the start / stop and precise positioning of the servo motor and the lead screw motor through the control module. The analog input module can convert the weight information detected by the weighing sensor into a digital signal and transmit it to the PLC controller, and the PLC controller analyzes and processes the received signal.

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