Horizontal filling machine and filling method

Abstract

The invention provides a horizontal filling machine and a filling method, and relates to the technical field of industrial filling equipment.The horizontal filling machine comprises a rack, a first material distributing mechanism, a second material distributing mechanism, a first weighing mechanism, a second weighing mechanism, a first conveying mechanism, a second conveying mechanism and a clamping mechanism, and the first material distributing mechanism and the second material distributing mechanism are installed on the rack side by side; the volume of a first hopper of the first material distributing mechanism is larger than that of a second hopper of the second material distributing mechanism, and the first weighing mechanism and the second weighing mechanism are installed in parallel and located below the first material distributing mechanism and the second material distributing mechanism and between the first conveying mechanism and the second conveying mechanism respectively. The first conveying mechanism and the second conveying mechanism are installed on the rack, and the clamping mechanism is installed above the first weighing mechanism and the second weighing mechanism. The multi-stage filling device has the beneficial effects that the precision of controlling the filling amount is improved through multi-stage filling, and material leakage is prevented.

Description

Technical Field

[0001] The present invention provides a horizontal filling machine and a filling method, which relate to the technical field of industrial filling equipment. Background Art

[0002] Existing horizontal filling machines mainly adopt vertical screw feeding or semi-automatic horizontal single-screw feeding, combined with weighing sensors to achieve quantitative filling. They can meet the powder packaging needs of industries such as food, medicine, and chemical industry, such as milk powder, pharmaceutical raw materials, and chemical additives.

[0003] Existing horizontal screw weighing and feeding mechanisms are mostly semi-automatic single screws, which cannot accurately control the filling volume. Commonly used filling machines mostly adopt the vertical screw feeding method. The feeding port is at the top of the machine, and the feeding port is small, making it difficult to feed. A feeding machine needs to be equipped, and the cleaning is relatively troublesome. The disassembly and installation for changing varieties are complex. It is not very suitable for multi-variety packaging on one machine, and there is a problem of easy material leakage. Summary of the Invention

[0004] The present invention solves the technical problems in the prior art that the filling volume cannot be accurately controlled and the filling is prone to material leakage.

[0005] The present invention is realized as follows: It includes a frame, a first material distribution mechanism, a second material distribution mechanism, a first weighing mechanism, a second weighing mechanism, a first conveying mechanism, a second conveying mechanism, a clamping mechanism, and a control system. The first material distribution mechanism and the second material distribution mechanism are installed side by side on the frame. The first material distribution mechanism includes a first hopper, and the second material distribution mechanism includes a second hopper. The volume of the first hopper is larger than that of the second hopper. A horizontal screw conveyor can be detachably installed at the bottom of both the first hopper and the second hopper. The first weighing mechanism and the second weighing mechanism are respectively installed below the first material distribution mechanism and the second material distribution mechanism. The first conveying mechanism and the second conveying mechanism are both horizontally installed on the frame, respectively on the sides of the first weighing mechanism and the second weighing mechanism. The clamping mechanism is installed above the first weighing mechanism and the second weighing mechanism and is located below the first material distribution mechanism and the second material distribution mechanism; The first material distribution mechanism, the second material distribution mechanism, the first weighing mechanism, the second weighing mechanism, the first conveying mechanism, the second conveying mechanism, and the clamping mechanism are all connected to the control system.

[0006] As a further preferred option, the horizontal screw conveyor is horizontally extended along the spiral conveying direction and then a leak-proof mechanism can be detachably installed.

[0007] As a further preference, the anti-leakage mechanism is a cross-shaped connector. The cross-shaped connector has a horizontal pipe and a vertical pipe that are cross-connected. The horizontal pipe includes a first interface and a second interface in the horizontal direction. The vertical pipe includes a third interface and a fourth interface in the vertical direction. The horizontal screw of the horizontal screw conveyor extends into the horizontal pipe from the first interface, without extending into the cross range of the horizontal pipe and the vertical pipe. The fourth interface serves as the filling port.

[0008] As a further preference, a leak-proof piston is installed at the third interface. The leak-proof piston extends into the vertical pipe along the third interface. The leak-proof piston moves up and down along the vertical pipe. When the leak-proof piston moves downward, it enters the cross range of the horizontal pipe and the vertical pipe. When the leak-proof piston moves upward, it leaves the cross range of the horizontal pipe and the vertical pipe.

[0009] As a further preference, an observation window is installed at the second interface.

[0010] As a further preference, the frame includes a vertical plate. The clamping mechanism is installed on the vertical plate. A sliding groove group is provided on the vertical plate. The sliding groove group includes an upper groove and a lower groove that are parallel up and down. The clamping mechanism includes an inner clamping plate and an outer clamping plate. The inner clamping plate and the outer clamping plate move along the upper groove and the lower groove respectively.

[0011] As a further preference, a baffle that moves up and down is installed between the first conveyor and the first weighing mechanism.

[0012] As a further preference, a photoelectric detection device is installed at one end of the first conveyor close to the baffle.

[0013] Filling method using a horizontal filling machine. The first conveying mechanism conveys the filling container to a position close to the first weighing mechanism. The clamping mechanism clamps the filling container onto the first weighing mechanism. After the first weighing mechanism completes the tare procedure, the first dispensing mechanism fills the filling container with materials. The filling amount of the first dispensing mechanism is greater than 50% and less than 100% of the total filling amount. After the first weighing mechanism weighs and determines that the filling target of the first dispensing mechanism is completed, this filling is paused. The clamping mechanism clamps the filling container that has completed the first filling onto the second weighing mechanism for the second filling. At the same time, it clamps the filling container on the first conveying mechanism and sends it onto the first weighing mechanism for the first filling. After the second weighing mechanism weighs the filling container that has completed the first filling, the second dispensing mechanism performs the second filling to fill the remaining materials. After the second weighing mechanism weighs and completes the total filling amount, the second dispensing mechanism stops filling. After the filling containers on one side complete the first filling, the clamping mechanism clamps the filling containers on the first weighing mechanism and the second weighing mechanism and sends them to the second weighing mechanism and the second conveying mechanism respectively. The clamping mechanism simultaneously clamps the filling containers on the first conveying mechanism and clamps them onto the first weighing mechanism, continuously repeating the weighing and clamping steps to complete the material filling of multiple filling containers.

[0014] As a further preference, the filling speed of the first dispensing mechanism is greater than the filling speed of the second dispensing mechanism.

[0015] Working principle of the present invention: Turn on the power of the horizontal filling machine, control the initialization and startup of the device through the screen keys, and set the total filling volume, filling volume of the first dosing mechanism, filling volume of the second dosing mechanism, and weight of the empty filling container for this time, and then start filling. When the first conveying mechanism transports the filling container to the end of the conveyor belt, the photoelectric detection device senses the filling container, and the lifting cylinder controls the baffle to descend. The clamping mechanism clamps the filling container onto the first weighing mechanism under the first dosing mechanism, with the upper opening of the filling container facing the filling port. After the weighing sensor of the first weighing mechanism detects the weight of the filling container, the automatic tare program is carried out. The weighing sensor continuously detects the weight change of the weighing platform. After the tare is completed, filling starts. The anti-leakage piston moves upward, leaving the intersection range of the horizontal pipe and the vertical pipe. The servo motor controls the horizontal screw of the horizontal screw conveyor mechanism to rotate rapidly, and the material quickly falls from the hopper of the first dosing mechanism through the anti-leakage mechanism into the filling container. When the weighing sensor detects the preset filling volume of the first dosing mechanism, filling stops. The clamping mechanism clamps the filling container and moves it onto the second weighing mechanism under the second dosing mechanism, with the upper opening of the filling container facing the slow filling port. The steps are the same as the previous filling steps. The servo motor controls the horizontal screw of the second dosing mechanism to rotate slowly. After filling the preset filling volume of the second dosing mechanism, filling ends, with the accuracy controlled within ±1g. The clamping mechanism clamps the filling container and moves it to the second conveying mechanism, and is transported to the end of the second conveying mechanism along with the conveyor belt.

[0016] Advantages of the present invention: The unique anti-leakage mechanism can effectively prevent the problem of material leakage after dosing; the double horizontal screw feeding method and the double filling head design enable fast feeding and slow feeding; there are two independent filling heads, which can fill two containers simultaneously, support customization of containers of different specifications, significantly improve production efficiency, and the double weighing sensors ensure filling accuracy and consistency. The horizontal screw conveyor mechanism is chuck-connected to the anti-leakage mechanism, which can be better disassembled for easy cleaning. The horizontal screw conveyor mechanism and the hopper can be disassembled as a whole to achieve modular replacement, with a fast replacement speed and convenient variety replacement for continuous dosing. The intelligent weighing system automatically identifies the tare weight and completes the tare at the moment the container enters the station, without manual pre-weighing or calibration. During the process of filling the material, the weighing sensor of the first weighing mechanism detects, enabling fast filling. When it reaches the second weighing mechanism, the automatic feeding mechanism is triggered for slow filling, realizing closed-loop control of the whole process, with the error controlled within ±1g, providing an efficient and reliable automatic filling method. The clamping mechanism can clamp up to three filling containers simultaneously to form continuous filling. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic diagram of the overall mechanism of the present invention; Figure 2 is Figure 1 the front view of Figure 3 is Figure 1 the side view of Figure 4 is Figure 1 the top view of Figure 5 is a schematic diagram of the first material distribution structure; Figure 6 is a schematic diagram of the structure of the horizontal spiral conveying mechanism and the anti-leakage mechanism, and the horizontal screw is in the state of conveying the material to be filled; Figure 7 is Figure 6 the B-B sectional view of Figure 8 is Figure 6 the horizontal sectional view of Figure 9 is a schematic diagram of the anti-leakage mechanism; Figure 10 is Figure 9 the vertical sectional view of Figure 11 is a schematic diagram of the overall structure of the clamping mechanism; Figure 12 is the side view of the clamping mechanism; Figure 13 is the top view of the clamping mechanism; Figure 14 is the rear view of the clamping mechanism; Figure 15 is a schematic diagram of the vertical plate.

[0019] Identifications in the figure: 1 - rack; 2 - first material distributing mechanism; 3 - second material distributing mechanism; 4 - first weighing mechanism; 5 - second weighing mechanism; 6 - first conveying mechanism; 7 - second conveying mechanism; 8 - conveyor belt; 9 - baffle; 10 - clamping mechanism; 11 - guardrail; 12 - horizontal screw conveyor mechanism; 13 - horizontal screw; 14 - servo motor; 15 - anti-leakage mechanism; 16 - first interface; 17 - second interface; 18 - third interface; 19 - fourth interface; 20 - observation window; 21 - anti-leakage piston; 22 - first weighing platform; 23 - second weighing platform; 24 - inner clamping plate; 25 - outer clamping plate; 26 - first hopper; 27 - second hopper; 28 - coupling; 29 - vertical plate; 30 - filling container; 31 - outer shell; 32 - motor; 33 - scaling cylinder; 34 - lifting cylinder; 35 - guide rail; 36 - upper groove; 37 - lower groove; 38 - moving base; 39 - upper plate; 40 - lower plate; 41 - sliding shaft; 42 - L-shaped plate; 43 - anti-slip strip. Detailed implementation manners

[0020] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0021] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the horizontal filling machine includes a rack 1, a first material distributing mechanism 2, a second material distributing mechanism 3, a first weighing mechanism 4, a second weighing mechanism 5, a first conveying mechanism 6, a second conveying mechanism 7, a clamping mechanism 10 and a control system (not shown in the figure). The rack 1 includes an outer shell 31. The first material distributing mechanism 2, the second material distributing mechanism 3, the first weighing mechanism 4, the second weighing mechanism 5, the first conveying mechanism 6, the second conveying mechanism 7 and the clamping mechanism 10 are all connected to the control system. The control system is installed on the rack 1, and the control system includes a screen, a programmable logic controller and a power supply.

[0022] Refer to Figure 1, the first material distributing mechanism 2 and the second material distributing mechanism 3 are installed side by side on the frame 1 in a known fixed manner. The first material distributing mechanism 2 includes a first hopper 26 and a horizontal screw conveyor 12. The first hopper 26 is used to hold the material to be filled. The first hopper 26 is provided with an upper opening and a lower opening. The upper opening serves as the feeding port, and the lower opening serves as the discharging port. The horizontal screw conveyor 12 is detachably installed at the bottom of the first hopper 26 and communicates with the lower opening of the first hopper 26. The second material distributing mechanism 3 includes a second hopper 27 and a horizontal screw conveyor 12. The second hopper 27 is used to hold the material to be filled. The second hopper 27 is provided with an upper opening and a lower opening. The upper opening serves as the feeding port, and the lower opening is used for discharging. The horizontal screw conveyor 12 is detachably installed at the bottom of the second hopper 27 and communicates with the lower opening of the second hopper 27. In this embodiment, the detachable installation selects the chuck connection method, which is convenient for disassembly, cleaning or replacement. In this embodiment, the volume of the first hopper 26 is larger than the volume of the second hopper 27. It can also be set that the volume of the first hopper 26 is less than or equal to the volume of the second hopper 27 according to needs. The horizontal screw conveyor 12 detachably installed with the first hopper 26 and the second hopper 27 is used to horizontally transport the materials falling from the first hopper 26 and the second hopper 27. The horizontal screw conveyor 12 of the first material distributing mechanism 2 has the same structure as the horizontal screw conveyor 12 of the second material distributing mechanism 3, and can be adjusted to an appropriate size according to the sizes of the first hopper 26 and the second hopper 27 so as to be adapted to the first hopper 26 and the second hopper 27. Refer to Figure 1 , Figure 2 and Figure 3, the horizontal screw conveyor mechanism 12 includes a screw housing, a horizontal screw 13, a coupling 28, and a servo motor 14. One end of the screw housing is a closed end, and the other end is an open end. The middle part of the screw housing is detachably connected to the first hopper 26 / the second hopper 27. The horizontal screw 13 is located inside the screw housing. The servo motor 14 is connected to the coupling 28 through the screw. The other end of the coupling 28 extends into the screw housing from the closed end of the screw housing and is connected to the tail of the horizontal screw 13. The horizontal screw 13 extends horizontally inside the screw housing. The horizontal screw 13 is provided with a screw rod and screw blades. The screw blades are installed on the screw rod. The material in the first hopper 26 or the second hopper 27 falls on the horizontal screw 13. The servo motor 14 drives the horizontal screw 13 to rotate through the coupling 28. The material rotates with the rotation of the horizontal screw 13 and is continuously conveyed to the open end along the rotation direction of the screw blades of the horizontal screw 13. The rotation speed of the horizontal screw 13 is controlled by the servo motor 14 to adjust the filling speed. In the actual application process, the material falling speed of the first material distribution mechanism 2, that is, the filling speed, is greater than the material falling speed of the second material distribution mechanism 3. The first material distribution mechanism 2 is used to fill the material with a relatively large filling amount, which is greater than 50% and less than 100% of the total filling amount. The second material distribution mechanism 3 is used to fill the material with a relatively small filling amount, that is, the remaining material. In this embodiment, each container is filled with 250 g. The first material distribution mechanism 2 quickly fills 240 g, and the second material distribution mechanism 3 slowly fills 10 g.

[0023] See Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10, the end of the horizontal screw conveyor mechanism 12, i.e., the open end, serves as the outlet of the material. To prevent material leakage, a leakage prevention mechanism 15 is detachably installed at the open end of the horizontal screw conveyor mechanism 12 after it extends along the horizontal direction. In this embodiment, the detachable installation method is a chuck type installation. The detachable connection method facilitates the disassembly of the horizontal screw conveyor mechanism 12 and the leakage prevention mechanism 15 for cleaning. The leakage prevention mechanism 15 is a cross-shaped connector. The cross-shaped connector is in an overall cross shape, including a horizontal pipe, a vertical pipe, and four interfaces. The horizontal pipe and the vertical pipe are cross-connected to each other. The interfaces include a first interface 16, a second interface 17, a third interface 18, and a fourth interface 19. The two open ends of the horizontal pipe are respectively the first interface 16 and the second interface 17. The central axes of the first interface 16 and the second interface 17 coincide and are in the same horizontal direction. The two open ends of the vertical pipe are respectively the third interface 18 and the fourth interface 19, which are vertical. The central axes of the third interface 18 and the fourth interface 19 coincide and are in the same vertical direction. The third interface 18 is above the fourth interface 19. The interior of the cross-shaped connector is interconnected. The horizontal screw 13 of the horizontal screw conveyor mechanism 12 extends into the cross-shaped connector from the first interface 16. The diameter of the fourth interface 19 extends downward and narrows to form a filling port, and the material falls into the filling container 30 from the fourth interface 19. The end of the horizontal screw 12 approaches the intersection range of the horizontal pipe and the vertical pipe, but does not enter this intersection range. The third interface 17 is used to install a leakage prevention piston 21, and the leakage prevention piston 21 is adapted to the vertical pipe. The upper part of the leakage prevention piston 21 is connected to the motor, and the connection method is known. The lower part of the leakage prevention piston 21 extends downward along the third interface 17 and enters the intersection range of the horizontal pipe and the vertical pipe. During filling, the leakage prevention piston 21 moves upward along the vertical pipe through the motor and leaves the intersection range of the horizontal pipe and the vertical pipe, and the material can sequentially pass through this intersection range and the filling port and fall into the filling container 30. When the filling target is completed, the leakage prevention piston 21 extends downward to the position between the first interface 16 and the second interface 17 under the drive of the motor 32 and enters the intersection range of the horizontal pipe and the vertical pipe, the space where the horizontal pipe and the vertical pipe are cross-connected, and the material falls into the fourth interface 19. In this embodiment, the leakage prevention piston 21 is a columnar object, and an observation window 20 is installed at the second interface 17 for observing the situation inside the cross-shaped connector.

[0024] The first conveying mechanism 6 and the second conveying mechanism 7 are both installed on the frame 1. The installation positions of the first conveying mechanism 6 and the second conveying mechanism 7 are lower than those of the first material distributing mechanism 2 and the second material distributing mechanism 3. The first conveying mechanism 6 and the second conveying mechanism 7 are respectively located on the left side below the first material distributing mechanism 2 and on the right side below the second material distributing mechanism 3. Both the first conveying mechanism 6 and the second conveying mechanism 7 are belt conveyors with the same structure, and both include a conveyor belt 8, a driving device, rollers, idlers, a tensioning device, and a guardrail 11. The connection manners of the conveyor belt 8, the driving device, the rollers, the idlers, and the tensioning device are prior arts. In this embodiment, the existing belt conveyor is improved, and the guardrails 11 are installed on both sides of the conveyor belt 8 along the conveying direction to prevent the filling containers 50 from falling. The first weighing mechanism 4 and the second weighing mechanism 5 are installed side by side, respectively below the first material distributing mechanism 2 and the second material distributing mechanism 3. The first weighing mechanism 4 and the second weighing mechanism 5 are located between the first conveying mechanism 6 and the second conveying mechanism 7. The first conveying mechanism 6 is on one side of the first weighing mechanism 4, and the second conveying mechanism 7 is on one side of the second weighing mechanism 5. Both the first weighing mechanism 4 and the second weighing mechanism 5 adopt intelligent weighing systems for weighing the filling containers and the filling amounts. The first weighing mechanism 4 includes a first weighing platform 22 and a weighing sensor (not shown in the figure), which are used to weigh the weight of the filling container 30 and the weight of the first filling. The first weighing platform 22 is used to place the filling container 30. The second weighing mechanism 5 includes a second weighing platform 23 and a weighing sensor (not shown in the figure), which are used to weigh the weight of the second filling of the filling container 30. The second weighing platform 23 is used to place the filling container 30 for the second filling. The specific structures of the first weighing mechanism 4 and the second weighing mechanism 5 are not described in detail in this embodiment, and the weighing devices in the prior arts can be referred to.

[0025] Refer to Figure 15, the frame includes a vertical plate 29 which is located at the upper and middle parts of the frame 1. The first conveying mechanism 6, the second conveying mechanism 7, the first material distributing mechanism 2, the second material distributing mechanism 3, the first weighing mechanism 4 and the second weighing mechanism 5 are all installed on the front side of the vertical plate 29. The clamping mechanism 10 belongs to the type of parallel jaws. The clamping mechanism 10 is installed on the vertical plate 29 and is located above the first weighing mechanism 4 and the second weighing mechanism 5. The clamping range of the clamping mechanism 10 extends horizontally from the tail of the first conveying mechanism 6, crosses the first weighing mechanism 4 and the second weighing mechanism 5, and reaches the head of the second conveying mechanism 7. The vertical plate 29 is provided with a sliding groove group corresponding to the clamping mechanism 10. The sliding groove group includes an upper groove 36 and a lower groove 37 which are arranged in parallel, and the upper groove 36 and the lower groove 37 are arranged along the horizontal direction. Refer to Figure 11 , Figure 12 , Figure 13 and Figure 14 , the clamping mechanism 10 includes an inner clamping plate 24, an outer clamping plate 25, a scaling cylinder 33, a lifting cylinder 34, a guide rail 35 and a moving base 38. The inner clamping plate 24 and the outer clamping plate 25 are arranged relatively parallel. The inner clamping plate 24 and the outer clamping plate 25 form a clamping hand for clamping the filling container 30. The inner clamping plate 24 and the outer clamping plate 25 are both parallel to the vertical plate 29. Anti-slip strips 43 are installed on the inner surfaces of the inner clamping plate 24 and the outer clamping plate 25. The upper groove 36 corresponds to the inner clamping plate 24, and the lower groove 37 corresponds to the outer clamping plate 25. The back of the inner clamping plate 24 extends horizontally through the upper groove 36 and is connected to one of the lifting cylinders 34 and is also connected to one of the scaling cylinders 33 in a known connection manner. The back of the outer clamping plate 26 is connected to an L-shaped plate 42. The vertical part of the L-shaped plate 42 is connected to the back of the outer clamping plate 26. The horizontal part of the L-shaped plate 42 extends through the lower groove 36 and is connected to the other lifting cylinder 34 and is also connected to the other scaling cylinder 33 in a known connection manner. The two scaling cylinders 33 are used to control the scaling of the inner clamping plate 25 and the outer clamping plate 26 to grab or release the filling container 30.

[0026] Refer to Figure 11, the mobile base 38 includes an upper plate 39, a lower plate 40 and sliding shafts 41. The back surface of the inner clamping plate 25 extends horizontally and then connects to the upper plate 39. The outer clamping plate 26 is connected to the lower plate 39 through an L-shaped plate. At least two sliding shafts 41 are arranged between the upper plate 38 and the lower plate 39. The lifting cylinder 34 controls the upper plate 38 and the lower plate 39 to slide up and down along the sliding shafts 41, thereby driving the inner clamping plate 25 and the outer clamping plate 26 to move vertically back and forth within the height range of the upper groove 36 and the lower groove 37 respectively, realizing the lifting of the inner clamping plate 25 and the outer clamping plate 26. When clamping the filling container 30, the filling container 30 is lifted to leave the plane where it is located, avoiding friction between the bottom of the filling container 30 and the contact part. Two scaling cylinders 33 are installed on the lower plate 40. The bottom of the mobile base 38 is connected to the guide rail 35. The mobile base 38 is connected to a cylinder (not shown in the figure) and slides left and right along the guide rail 35 under the action of this cylinder, thereby driving the inner clamping plate 25 and the outer clamping plate 26 to move horizontally back and forth along the width direction of the upper groove 36 and the lower groove 37 respectively, realizing clamping the filling container 30 for multiple fillings. In this embodiment, the first conveying mechanism 6 is used to convey the filling container 30 to the end of the first conveying mechanism 6. The clamping mechanism 10 moves horizontally along the upper groove 36 and the lower groove 37, clamps the filling container 30 onto the first weighing mechanism 5, and makes the container mouth face the filling port of the first material distributing mechanism 2. After the first material distributing mechanism 2 completes filling, the clamping mechanism 10 can simultaneously clamp the filling container 30 on the first weighing mechanism 4 and the filling container 30 at the end of the first conveying mechanism 6, and move horizontally to the right along the upper groove 36 and the lower groove 37, respectively clamp the filling container 30 on the first weighing mechanism 4 to the second weighing mechanism 5, make the container mouth face the filling port of the second material distributing mechanism 3 for secondary filling, and clamp the filling container 30 at the end of the first conveying mechanism 6 onto the first weighing mechanism 4 for primary filling. The clamping mechanism 10 clamps the filling container 30 that has completed secondary filling and moves it to the conveyor belt 8 of the second conveying mechanism 7. At the same time, it can clamp the filling container 30 on the first weighing mechanism 4 to the second weighing mechanism 5 for secondary filling, and clamp the filling container 30 at the end of the first conveying mechanism 6 to the first weighing mechanism 4 for primary filling.

[0027] To cooperate with the clamping mechanism 10 to clamp the filling container 30 located on the first conveying mechanism 6, an optoelectronic induction device is further installed at the end of the first conveying mechanism 6. This end refers to the end of the first conveying mechanism 6 close to the first weighing mechanism 4. A baffle 9 that can move up and down is installed between the first conveying mechanism 6 and the weighing mechanism 7. The baffle 9 is connected to a lifting cylinder, and the connection method is selected from the prior art to achieve lifting. The lifting cylinder is installed on the frame 1. In the initial state, the baffle 9 blocks the first conveying mechanism 6 and the first weighing mechanism 5. When the optoelectronic induction device senses the filling container 30, the first conveying mechanism 6 stops conveying, the baffle 9 descends, the clamping mechanism 10 clamps the filling container 30 located on the first conveying mechanism 7, moves it to the first weighing mechanism 4, and the baffle 9 rises until the next filling container 30 is conveyed to the end of the first conveying mechanism 7.

[0028] The working principle of the present invention: Turn on the power of the horizontal filling machine, control the device initialization, start, and set the total filling volume, the filling volume of the first dosing mechanism, the filling volume of the second dosing mechanism, and the weight of the empty filling container through the screen keys, and then start filling. When the first conveying mechanism transports the filling container to the end of the conveyor belt, the optoelectronic detection device senses the filling container, and the lifting cylinder controls the baffle to descend. The clamping mechanism clamps the filling container onto the first weighing mechanism below the first dosing mechanism. The upper opening of the filling container faces the filling port. After the weighing sensor of the first weighing mechanism detects the weight of the filling container, the automatic peeling program is carried out. The weighing sensor continuously detects the weight change of the weighing platform. After the peeling is completed, filling starts. The anti-leakage piston moves upward, leaving the intersection range of the horizontal pipe and the vertical pipe. The servo motor controls the horizontal screw of the horizontal screw conveying mechanism to rotate rapidly. The material quickly falls from the hopper of the first dosing mechanism through the anti-leakage mechanism into the filling container. When the weighing sensor detects the preset filling volume of the first dosing mechanism, filling stops. The clamping mechanism clamps the filling container and moves it onto the second weighing mechanism below the second dosing mechanism. The upper opening of the filling container faces the slow filling port. The steps are the same as the previous filling steps. The servo motor controls the horizontal screw of the second dosing mechanism to rotate slowly. After filling the preset filling volume of the second dosing mechanism, filling ends, and the accuracy is controlled within ±1g. The clamping mechanism clamps the filling container and moves it to the second conveying mechanism, and it is conveyed to the end of the second conveying mechanism along with the conveyor belt.

[0029] Advantages of the present invention: The unique anti-leakage mechanism can effectively prevent the leakage of materials after dispensing; the dual horizontal screw feeding method and the dual filling head design enable fast and slow feeding; there are two independent filling heads, which can fill two containers simultaneously, support customization of containers with different specifications, significantly improve production efficiency, and the dual weighing sensors ensure filling accuracy and consistency. The horizontal spiral conveying mechanism is chuck-connected to the anti-leakage mechanism, which can be better disassembled for easy cleaning. The horizontal spiral conveying mechanism and the hopper can be disassembled as a whole to achieve modular replacement, with a fast replacement speed and convenient variety replacement for continuous dispensing. The intelligent weighing system automatically recognizes the tare weight and completes tare removal instantly when the container enters the station without manual pre-weighing or calibration. During the filling process of the material, the weighing sensor of the first weighing mechanism detects and enables fast filling. When it reaches the second weighing mechanism, the automatic feeding mechanism is triggered for slow filling, realizing closed-loop control of the whole process, with an error control within ±1g, providing an efficient and reliable automatic filling method. The clamping mechanism can clamp up to three filling containers simultaneously to form continuous filling.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Horizontal filling machine, characterized in that, It includes a frame, a first material distributing mechanism, a second material distributing mechanism, a first weighing mechanism, a second weighing mechanism, a first conveying mechanism, a second conveying mechanism, a clamping mechanism and a control system. The first material distributing mechanism and the second material distributing mechanism are installed side by side on the frame. The first material distributing mechanism includes a first hopper, and the second material distributing mechanism includes a second hopper. The volume of the first hopper is larger than that of the second hopper. A horizontal screw conveyor can be detachably installed at the bottom of both the first hopper and the second hopper. The first weighing mechanism and the second weighing mechanism are respectively installed below the first material distributing mechanism and the second material distributing mechanism. The first conveying mechanism and the second conveying mechanism are both horizontally installed on the frame and are respectively located on the sides of the first weighing mechanism and the second weighing mechanism. The clamping mechanism is installed above the first weighing mechanism and the second weighing mechanism and is located below the first material distributing mechanism and the second material distributing mechanism; The first material distributing mechanism, the second material distributing mechanism, the first weighing mechanism, the second weighing mechanism, the first conveying mechanism, the second conveying mechanism, and the clamping mechanism are all connected to the control system.

2. The horizontal filling machine according to claim 1, characterized in that, The horizontal screw conveyor is horizontally extended along the screw conveying direction and then a leak-proof mechanism is detachably installed.

3. The horizontal filling machine according to claim 2, wherein, The leak-proof mechanism is a cross-shaped connecting piece. The cross-shaped connecting piece has a horizontally connected cross tube and a vertical tube. The cross tube includes a first interface and a second interface in the horizontal direction. The vertical tube includes a third interface and a fourth interface in the vertical direction. The horizontal screw of the horizontal screw conveyor extends into the cross tube from the first interface and does not extend into the cross range of the cross tube and the vertical tube. The fourth interface serves as a filling port.

4. The horizontal filling machine according to claim 3, wherein A leak-proof piston is installed at the third interface. The leak-proof piston extends into the vertical tube along the third interface. The leak-proof piston moves up and down along the vertical tube. When the leak-proof piston moves down, it enters the cross range of the cross tube and the vertical tube. When the leak-proof piston moves up, it leaves the cross range of the cross tube and the vertical tube.

5. The horizontal filling machine according to claim 4, characterized in that, An observation window is installed at the second interface.

6. The horizontal filling machine according to claim 1, characterized in that, The frame includes a vertical plate. The clamping mechanism is installed on the vertical plate. A sliding groove group is provided on the vertical plate. The sliding groove group includes an upper groove and a lower groove that are parallel up and down. The clamping mechanism includes an inner clamping plate and an outer clamping plate. The inner clamping plate and the outer clamping plate move along the upper groove and the lower groove respectively.

7. The horizontal filling machine according to claim 1, characterized in that, A baffle that moves up and down is installed between the first conveying mechanism and the first weighing mechanism.

8. The horizontal filling machine according to claim 1, characterized in that, An optoelectronic detection device is installed at one end of the first conveying mechanism close to the baffle.

9. The filling method of the horizontal filling machine according to claim 1, characterized in that The first conveying mechanism conveys the filling container to a position close to the first weighing mechanism. The clamping mechanism clamps the filling container onto the first weighing mechanism. After the first weighing mechanism completes the tare procedure, the first material distribution mechanism fills the filling container with materials. The filling amount of the first material distribution mechanism is greater than 50% and less than 100% of the total filling amount. After the first weighing mechanism weighs that the filling target of the first material distribution mechanism is completed, this filling is paused. The clamping mechanism clamps the filling container that has completed the first filling onto the second weighing mechanism for the second filling, and at the same time clamps the filling container on the first conveying mechanism and sends it onto the first weighing mechanism for the first filling. After the second weighing mechanism weighs the filling container that has completed the first filling, the second material distribution mechanism performs the second filling to fill the remaining materials. After the second weighing mechanism weighs and completes the total filling amount, the second material distribution mechanism stops filling. After the filling containers on one side complete the first filling, the clamping mechanism clamps the filling containers on the first weighing mechanism and the second weighing mechanism and sends them to the second weighing mechanism and the second conveying mechanism respectively. The clamping mechanism simultaneously clamps the filling containers on the first conveying mechanism and clamps them onto the first weighing mechanism, continuously repeating the weighing and clamping steps to complete the material filling of multiple filling containers.

10. The filling method according to claim 1, characterized in that, The filling speed of the first material distribution mechanism is greater than that of the second material distribution mechanism.

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