Linear powder filling machine

Abstract

The invention discloses a linear powder filling machine which comprises a machine frame, a feeding conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt, a powder conveying belt and a powder conveying belt, and the powder conveying belt is arranged on one side of the machine frame in the arrangement direction of the filling heads; the lifting table is arranged on the rack, located below the filling head and vertically moves, and a weight detection sensor is arranged on the lifting table; the column-dividing conveying belts are in one-to-one correspondence with the lifting tables and are arranged in the direction, pointing to the lifting tables, of the feeding conveying belt; the plurality of guide pieces are used for pushing the powder containers from the feeding conveying belt to the column-dividing conveying belt; the discharging conveying belt is located on the side, away from the column dividing conveying belt, of the lifting table and arranged in the arrangement direction of the filling heads. And the carrying pieces are arranged on the rack, correspond to the filling heads one by one and are used for driving the powder containers to sequentially move in the arrangement direction of the column-dividing conveying belt, the lifting table and the discharging conveying belt. According to the invention, continuous, efficient and accurate filling work can be realized.

Description

A linear powder filling machine Technical Field

[0001] This invention relates to the field of filling technology, and in particular to a linear powder filling machine. Background Technology

[0002] A powder filling machine, also known as a powder filling machine or powder packaging machine, is an automated device used for quantitative packaging of powder and granular materials. It can achieve fully automated operation from metering, filling, sealing to labeling and palletizing through an integrated mechanical and electronic system.

[0003] Related technology can be found in Chinese Patent No. CN115352722B, which discloses a powder filling machine, including: a workbench, a first conveyor belt, a feeding device, an injection section, a sealing section, and a distributing tray; the sealing section is fixed on the workbench and is located at the rear of the injection section, and is suitable for sealing the bottle; the distributing tray is rotatably mounted on the workbench and is suitable for driving the bottle to pass through the injection section and the sealing section in sequence; the bottles are stacked in sequence in the feeding device, and the feeding device drives the bottles to the upper end of the first conveyor belt in sequence; during the movement of the bottles, the feeding device can mark the lower end of the outer wall of the bottle with oil; when the distributing tray drives the bottle to move below the injection section, the injection section fills the bottle with material; when the distributing tray drives the bottle to move below the sealing section, the sealing section can place the bottle cap on the bottle and seal the bottle.

[0004] Regarding the aforementioned technologies, the pharmaceutical and food industries have extremely high requirements for filling efficiency and precision. Traditional intermittent operation modes suffer from problems such as low efficiency, serious material waste, and insufficient filling precision. Therefore, there is an urgent need in the market for a continuous, efficient, and precise powder filling device. Summary of the Invention

[0005] To address the shortcomings of traditional powder filling machines, this application provides a linear powder filling machine.

[0006] This application provides a linear powder filling machine, employing the following technical solution: A linear powder filling machine includes a frame, a conveying channel for conveying powder is provided above the frame, and a filling head for discharging powder is connected to the end of the conveying channel. It also includes: a feeding conveyor belt, disposed on one side of the frame; several filling heads are provided, arranged laterally; the feeding conveyor belt conveys powder containers along the arrangement direction of the filling heads; and a lifting platform, disposed on the frame and corresponding to each filling head, located below the filling head and moving vertically. The frame is provided with a lifting component for moving the lifting platform, and a weight is provided on the lifting platform. The system includes: a weight sensor to detect the weight of the object being lifted by the lifting platform; separate conveyor belts, each corresponding to one of the lifting platforms and positioned along the direction from the feeding conveyor belt towards the lifting platform; several guides, each corresponding to one of the separate conveyor belts and arranged along the length of the feeding conveyor belt, which guide the powder container from the feeding conveyor belt to the separate conveyor belt; a discharge conveyor belt located on the side of the lifting platform away from the separate conveyor belts and positioned along the direction of the filling heads; and a conveying component mounted on the frame and corresponding to one of the filling heads, used to move the powder container sequentially along the arrangement directions of the separate conveyor belts, the lifting platform, and the discharge conveyor belt.

[0007] By adopting the above technical solution, the feeding conveyor belt transports powder containers in batches. When the powder containers move to the position corresponding to the end of the split conveyor belt, the pushing component drives the guiding component to move, causing the guiding component to move the powder containers from the feeding conveyor belt to the split conveyor belt, and then from the split conveyor belt to the lifting platform. The transport component moves the powder containers between the lifting platform and the filling head, at which point the lifting platform supports the powder containers. The lifting platform raises the powder containers, causing the lower end of the filling head to extend into the powder containers. The filling head fills the powder containers from the conveying channel into the powder containers. After filling is completed, the transport component moves the powder containers from below the lifting platform to the unloading conveyor belt, and then the unloading conveyor belt transports the filled powder containers to the next station. By setting up multiple sets of parallel conveyor belts and multiple sets of filling heads to work sequentially or simultaneously, in conjunction with feeding and unloading conveyor belts, multiple powder containers can be filled, achieving continuous feeding and unloading of powder containers. By adjusting the depth of the filling head into the powder container, and in conjunction with a weight detection sensor, the amount of powder to be filled can be accurately measured, thereby improving filling accuracy.

[0008] Optionally, guardrails are provided on both sides of the feeding conveyor belt and the split conveyor belt, and a channel for the movement of powder containers is left on the inner side of the guardrails.

[0009] By adopting the above technical solution, the guardrail protects the powder container, enabling the powder container to move stably along the preset trajectory, thereby improving the conveying stability of the powder container.

[0010] Optionally, the guide component includes a guide plate, a power component, and a detection unit. A support plate is provided on one side of the feeding conveyor belt. The guide plate is located on the side of the feeding conveyor belt away from the split conveyor belt and is rotatably connected to the support plate in the transverse direction. The power component is set on the support plate and is used to drive the guide plate to rotate. The detection unit is set on one side of the feeding conveyor belt and is connected to the power component. When the detection unit detects that the powder container is close to the guide plate, it controls the power component to work.

[0011] By adopting the above technical solution, the detection unit controls the power components to work. When the detection unit detects that the powder container is approaching, it drives the guide plate to move through the power, so that the guide plate pushes the powder container on the feeding conveyor belt to move towards the split conveyor belt. Multiple detection units work in sequence to control the guide plate to avoid or push the powder container, thereby realizing the coordinated work of multiple split conveyor belts and the feeding conveyor belt.

[0012] Optionally, the filling head includes a discharge pipe and a sealing disc. The discharge pipe is connected to the conveying channel and is arranged along the conveying channel. The discharge pipe has a discharge unit inside for driving the powder to be discharged quantitatively from the conveying channel. The discharge pipe is located above the lifting platform, and the diameter of the lower end of the discharge pipe is smaller than the inner diameter of the powder container. The sealing disc is located outside the discharge pipe, and the diameter of the lower end face of the sealing disc is larger than the diameter of the powder container. During the process of filling the powder container, the discharge pipe is located inside the powder container, and at this time the sealing disc seals the powder container.

[0013] By adopting the above technical solution, when the discharge pipe discharges the powder, it extends into the powder container. When the discharge unit conveys the powder from the discharge pipe to the powder container, the sealing plate is used to seal the powder container, thereby preventing the powder in the container from floating and spreading.

[0014] Optionally, the sealing disc includes a movable cylinder, a sealing plate, a pressure sensor, and a moving component. The movable cylinder is located outside the discharge pipe and is slidably connected to the discharge pipe along the axial direction. The moving component is located outside the discharge pipe and is used to drive the movable cylinder to move. The sealing plate is located at the lower end of the movable cylinder and moves synchronously with the movable cylinder. During the filling process, the lower end face of the sealing plate contacts the upper end face of the powder container. The pressure sensor is located on the movable cylinder and is used to detect the pressure on the lower end face of the sealing plate. The moving component is connected to the pressure sensor and drives the movable cylinder to move vertically according to the pressure feedback value, so that the pressure on the lower end face of the sealing plate remains balanced.

[0015] By adopting the above technical solution, in the initial state, under the support of the movable cylinder, the opening of the container is sealed by the sealing plate. At this time, the movable cylinder is driven to move vertically by the moving part, so that the movable cylinder drives the sealing plate to press the container tightly. At this time, the pressure sensor detects the pressure applied by the sealing plate to the container. The movable cylinder is driven to move by the moving part, thereby adjusting the pressure applied by the sealing plate to the container at any time, which is suitable for different working conditions.

[0016] Optionally, the sealing plate is slidably connected to the movable cylinder in the vertical direction, and a counterweight ring is provided at the upper end of the sealing plate. The counterweight ring is slidably connected to the sealing plate in the vertical direction, and an elastic element is provided between the counterweight ring and the sealing plate. The elastic element is in a deformed state and has the tendency to push the counterweight ring away from the sealing plate.

[0017] By adopting the above technical solution, the counterweight ring applies a fixed pressure to the sealing plate through the elastic element, so that the sealing plate seals the powder container. When the movable cylinder descends and the upper end face of the counterweight ring contacts the movable cylinder, the movable cylinder pushes the counterweight ring closer to the sealing plate, and then applies a thrust to the sealing plate through the elastic element, thereby facilitating the adjustment of the pressure.

[0018] Optionally, the conveying component includes a baffle, a turntable, a rotating component, and a movable component. The turntable is rotatably connected to the frame in the transverse direction. The rotating component is mounted on the frame and is used to drive the turntable to rotate. The outer circumference of the turntable is evenly provided with multiple clamping openings. Two clamping plates are provided on the inner side of the clamping openings. The side of the clamping plate closest to the center of the turntable is rotatably connected to the turntable in the transverse direction. The movable component is mounted on the frame and is used to drive the two clamping plates in the same clamping opening to move closer or further apart. The baffle is connected to the frame and is arranged in an arc shape in the circumference of the turntable. The gap between the baffle and the turntable forms a transfer channel. One end of the transfer channel faces the sorting conveyor belt, and the other end faces the unloading conveyor belt.

[0019] By adopting the above technical solution, the powder container moves along the split conveyor belt to the clamping port and is positioned between two clamping plates. The movable part drives the two clamping plates to move closer to each other, so that the two clamping plates cooperate to clamp the powder container. When the rotating part drives the turntable to rotate, the turntable drives the powder container to move along the baffle to the top of the lifting platform through the clamping plates, thus completing the handling of the powder container. By adjusting the clamping angle of the clamping plates, the movement and transportation of powder containers of different diameters can be realized.

[0020] Optionally, the baffle is slidably connected to the frame in a direction close to or away from the turntable, and the frame is provided with a drive for moving the baffle.

[0021] By adopting the above technical solution, when the two clamping plates move the powder container to the top of the lifting platform, the driving component drives the baffle to approach the turntable, so that the baffle and the clamping plates cooperate to clamp and position the powder container. When the powder container and the powder inside are weighed by the weight detection sensor, the two clamping plates and the baffle are manipulated to move away from the powder container, thereby reducing the interference to the powder container during the weighing process and improving the measurement accuracy.

[0022] Optionally, a baffle is provided on the side of the clamping plate away from the axis of the turntable. The baffle is rotatably connected to the clamping plate. The turntable is provided with a limiting member connected to the baffle. When the clamping plate rotates, it drives the baffle to move synchronously. At this time, the limiting member drives the baffle to rotate in the opposite direction to the clamping plate.

[0023] By adopting the above technical solution, in the initial state, the two baffles are far apart from each other. Under the action of the limiting component, when the two clamping plates come closer to each other to clamp the container, the limiting component makes the two baffles come closer to each other, thereby preventing the container from detaching from the two clamping plates and improving the movement stability of the powder container.

[0024] Optionally, the frame is fixedly equipped with an air extraction unit, which is located on the side of the turntable away from the baffle. The air extraction unit is connected to two sets of vertically arranged air extraction nozzles, and the air extraction ends of all the air extraction nozzles are close to each other. When the turntable rotates, it drives all the clamping plates to pass through the air extraction area of ​​the air extraction nozzles in sequence.

[0025] By adopting the above technical solution, when the clamping plate passes the suction end of the suction nozzle, the suction unit draws air through the suction nozzle, thereby absorbing the powder accumulated in the gap between the turntable and the clamping plate, which helps to reduce the probability of powder accumulating in the gap of the mechanism and ensures the hygiene of the production environment.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. A feeding conveyor belt transports powder containers in batches. When the powder containers move to a position corresponding to the end of the split conveyor belt, the pushing component drives the guiding component to move, causing the guiding component to move the powder containers from the feeding conveyor belt to the split conveyor belt, and then from the split conveyor belt to the lifting platform. The transport component moves the powder containers between the lifting platform and the filling head, at which time the lifting platform supports the powder containers. The lifting platform drives the powder containers to rise, causing the lower end of the filling head to extend into the powder containers. The filling head fills the powder in the conveying channel into the powder containers. After filling is completed, the transport component transports the powder containers from below the lifting platform to the unloading conveyor belt, and then the unloading conveyor belt transports the filled powder containers to the next station. By setting up multiple sets of parallel conveyor belts and multiple sets of filling heads to work sequentially or simultaneously, in conjunction with the feeding and unloading conveyor belts, multiple powder containers can be filled, achieving continuous feeding and unloading of powder containers. By adjusting the depth of the filling head into the powder container, and in conjunction with the weight detection sensor, the filling quantity of powder can be accurately measured, improving filling accuracy; 2. The powder container moves along the parallel conveyor belt to the clamping port and is positioned between two clamping plates. The moving parts drive the two clamping plates to move closer to each other, so that the two clamping plates cooperate to clamp the powder container. When the rotating parts drive the turntable to rotate, the turntable moves the powder container along the baffle to the top of the lifting platform through the clamping plates, completing the transportation of the powder container. By adjusting the clamping angle of the clamping plates, the movement and transportation of powder containers of different diameters can be achieved. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 is a schematic diagram designed to highlight the positions of the filling head and the lifting platform.

[0029] Figure 3 is a schematic diagram designed to highlight the turntable structure.

[0030] Figure 4 is a schematic diagram designed to highlight the internal structure of the filling head.

[0031] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Lifting component; 12. Drive component; 13. Vacuum unit; 131. Vacuum nozzle; 2. Filling head; 21. Discharge pipe; 22. Sealing disc; 221. Movable cylinder; 222. Sealing plate; 223. Pressure feedback unit; 224. Moving component; 225. Counterweight ring; 226. Elastic component; 23. Discharge unit; 231. Vacuum tube; 232. Sealing rod; 233. Receiving tube; 3. Feeding conveyor belt; 31. Support plate; 4. Lifting platform 5. Separating conveyor belt; 6. Guide component; 61. Guide plate; 62. Power component; 63. Detection unit; 7. Unloading conveyor belt; 81. Baffle; 82. Turntable; 83. Rotating component; 84. Moving component; 841. Moving ring; 842. Hinge rod; 843. Power unit; 844. Connecting ring; 845. Pushing ring; 846. Connecting spring; 85. Clamping plate; 851. Mounting port; 86. Baffle plate; 87. Limiting component; 871. Moving seat; 872. Limiting spring. Detailed Implementation

[0032] The present application will be further described in detail below with reference to all the accompanying drawings.

[0033] This application discloses a linear powder filling machine.

[0034] Referring to Figures 1 and 2, an embodiment of a linear powder filling machine includes a frame 1, a feeding conveyor belt 3, a split conveyor belt 5, a discharging conveyor belt 7, and guide members 6. The feeding conveyor belt 3 and the discharging conveyor belt 7 are located on opposite sides of the frame 1 and are parallel to each other. Multiple filling heads 2 are arranged along the length of the feeding conveyor belt 3 on the frame 1, and the frame 1 is provided with a conveying channel for feeding powder to the filling heads 2.

[0035] Referring to Figures 1 and 2, the feeding conveyor belt 3 includes a belt assembly and a base. The belt assembly is positioned above the base and runs along the length of the base. The base supports the belt assembly, enabling it to directionally transport the powder container along its length. The split conveyor belts 5 correspond one-to-one with the filling heads 2 and are located between the feeding conveyor belt 3 and the filling heads 2.

[0036] Referring to Figures 1 and 2, the guide member 6 is connected to the split conveyor belt 5, and includes a guide plate 61, a power component 62, and a detection unit 63. A support plate 31 is fixedly connected to the base along its length, and the support plate 31 is located on the side of the base away from the split conveyor belt 5. The guide plate 61 is rotatably connected to the support plate 31 in the transverse direction. The power component 62 is a cylinder, and the cylinder body is rotatably connected to the support plate 31 in the transverse direction. The cylinder output end is hinged to the guide plate 61. When the cylinder is working, it pushes the guide plate 61 to rotate in the transverse direction.

[0037] Referring to Figures 1 and 2, the two ends of the feeding conveyor belt 3 are designated as the beginning and end points along the direction of conveying the powder containers, respectively. The powder containers are conveyed from the beginning to the end. The guide plates 61 correspond one-to-one with the split conveyor belts 5, and the side of the guide plate 61 facing the beginning is arc-shaped. The detection unit 63 is mounted on the base and is used to sense whether the powder container is approaching. Specifically, the detection unit 63 can be an infrared sensor. When the powder container approaches the guide plate 61, the detection unit 63 is triggered. At this time, the corresponding power component 62 pushes the guide plate 61 to rotate, so that the guide plate 61 spans the feeding conveyor belt 3 along the width direction of the feeding conveyor belt 3, and guides the powder container from the feeding conveyor belt 3 to the split conveyor belt 5 through the arc-shaped surface of the guide plate 61. When the powder container contacts the split conveyor belt 5, the split conveyor belt 5 drives the powder container to move towards the corresponding filling head 2.

[0038] Referring to Figures 1 and 2, all detection units 63 operate in a preset sequence. A control center is located beside the frame 1, recording the number of rotations of the guide plate 61 and thus the number of powder containers on the corresponding conveyor belts 5. When the number of containers on the conveyor belts 5 reaches the working requirements of the corresponding filling head 2, the corresponding detection unit 63 is turned off. When a powder container passes the corresponding detection unit 63, the detection unit 63 is not triggered. At this time, the powder container crosses the corresponding conveyor belt 5 and moves to the next conveyor belt 5 until the detection unit 63 corresponding to the next conveyor belt 5 is triggered and pushes the powder container onto the corresponding conveyor belt 5 through the guide plate 61. The above process is repeated until all conveyor belts 5 are fully loaded. When the working efficiency of the feeding conveyor belt 3, the conveyor belts 5, and the filling head 2 is matched, continuous feeding, filling, and unloading can be achieved, improving the continuity of the filling work.

[0039] Referring to Figures 1 and 2, guardrails are installed on both sides of the feeding conveyor belt 3 and the split conveyor belt 5. A channel for the movement of powder containers is left in the middle of the guardrails. The powder containers pass through this channel, and all the guardrails work together to limit the movement of the powder containers, thereby improving the conveying stability and safety of the powder containers. The guardrails are bolted on and are adjustable laterally, making them suitable for various types of containers.

[0040] Referring to Figures 1 and 2, a lifting platform 4 is also provided on the frame 1. The lifting platform 4 corresponds one-to-one with the filling head 2, and is located directly below the corresponding filling head 2. The lifting platform 4 is slidably connected to the frame 1 vertically. A lifting component 11 for moving the lifting platform 4 is installed at the lower end of the frame 1. The lifting component 11 is an electric actuator, and its operation is controlled by the control center to adjust the height of the lifting platform 4 at any time. A weight detection sensor is installed at the upper end of the lifting platform 4. When any object is placed on the lifting platform 4, the weight detection sensor weighs the corresponding object on the lifting platform 4 under the support of the lifting platform 4, and feeds back to the control center for recording and analysis.

[0041] Referring to Figures 2 and 3, a transport component is also installed on the worktable. Specifically, the transport component includes a baffle 81, a turntable 82, a rotating component 83, and a movable component 84. The turntable 82 is rotatably connected to the frame 1 laterally. The frame 1 is equipped with a rotating component 83 for driving the turntable 82 to rotate. The rotating component 83 is specifically a motor. Multiple clamping openings are provided on the outer side of the turntable 82, with the inner diameter of the clamping opening not less than the outer diameter of the powder container. The baffle 81 is located outside the turntable 82 and is arranged in an arc shape. A transfer channel for the powder container to move is provided between the turntable 82 and the baffle 81. One end of the transfer channel faces the tail end of the split conveyor belt 5, and the other end faces the unloading conveyor belt 7. All baffles 81 are slidably connected to the frame 1 along the direction close to or away from the corresponding turntable 82. The frame 1 is equipped with a drive component 12 for driving the baffles 81 to move. In this embodiment, the drive component 12 is an electric actuator.

[0042] Referring to Figures 2 and 3, two sets of clamping plates 85 are provided in each clamping opening. The clamping plates 85 are arranged radially along the turntable 82, and one end of the clamping plate 85 near the axis of the turntable 82 is rotatably connected to the turntable 82 laterally, with the axis of rotation parallel to the axis of rotation of the turntable 82. A movable component 84 is provided on the frame 1 and is used to move the two clamping plates 85 in the same clamping opening closer to or further apart from each other. The movable component 84 specifically includes a movable ring 841, a hinge rod 842, and a power unit 843. A guide shaft is fixedly provided at the upper end of the turntable 82, and the movable ring 841 is sleeved on the outside of the guide shaft and slidably connected to the guide shaft vertically.

[0043] Referring to Figures 2 and 3, a connecting ring 844 is coaxially rotatable at the upper end of the movable ring 841. A pushing ring 845 is provided at the upper end of the connecting ring 844, and the pushing ring 845 is slidably connected to the connecting ring 844 along the axial direction. A connecting spring 846 is provided between the connecting ring 844 and the pushing ring 845. One end of the connecting spring 846 is fixedly connected to the connecting ring 844, and the other end is fixedly connected to the pushing ring 845. When the pushing ring 845 moves vertically, it drives the connecting ring 844 to move via the connecting spring 846. A power unit 843 is mounted on the frame 1. Specifically, the power unit 843 is a cylinder, and its output end is connected to the pushing ring 845. When the power unit 843 is working, it drives the pushing ring 845 to move, causing the pushing ring 845 to drive the movable ring 841 to move along the axial direction via the connecting ring 844.

[0044] Referring to Figures 2 and 3, the hinge rods 842 correspond one-to-one with the clamping plates 85. The hinge rods 842 are hinged vertically to the movable ring 841, and their other ends are hinged to the clamping plates 85. All hinges are ball joints, providing multiple degrees of freedom. The hinge rods 842 are inclined. When the movable ring 841 approaches the turntable 82 along the guide axis, the two clamping plates 85 are moved away from each other via the two hinge rods 842. When the movable ring 841 moves away from the turntable 82 along the guide axis, the two clamping plates 85 are moved closer together via the hinge rods 842.

[0045] Referring to Figures 2 and 3, an intermittent wheel mechanism is provided between the rotating component 83 and the turntable 82. When the rotating component 83 is working, the turntable 82 rotates intermittently. When the turntable 82 is stopped, any clamping port is directly opposite the tail end of the split conveyor belt 5, with one clamping port located below the filling head 2 and another clamping port located at the unloading conveyor belt 7. Initially, all clamping plates 85 are in a state of being far apart from each other. After the split conveyor belt 5 carries the powder container into the clamping port, it is positioned between two clamping plates 85. At this time, the power component 62 drives the pushing ring 845 to move upward, so that the movable ring 841 drives the two clamping plates 85 through the two hinge rods 842 to clamp and limit the powder container.

[0046] Referring to Figures 2 and 3, under the connecting action of the connecting spring 846, there is a vertical relative movement space between the pushing ring 845 and the rotating ring, thereby reducing the probability of the clamping plate 85 damaging the powder container. An arc-shaped limiting groove is provided on the side of the two clamping plates 85 that are close to each other. The outer circle of the powder container is engaged in the arc-shaped limiting groove, which further reduces the probability of the powder container detaching from the clamping plate 85. The turntable 82 rotates, thereby moving the powder container through the clamping plate 85, causing the powder container to move along the baffle 81 to below the filling head 2. At this time, the lifting platform 4 lifts the powder container.

[0047] Referring to Figures 2 and 3, a baffle 86 is provided on the clamping plate 85 away from the axis of the turntable 82. An installation opening 851 is provided at one end of the clamping plate 85 away from the axis of the turntable 82. The baffle 86 is located within the installation opening 851 and is rotatably connected to the clamping plate 85 laterally. A rotating shaft is fixedly provided on the clamping plate 85, passing through the baffle 86. The clamping plate 85 supports the rotation of the baffle 86 via the rotating shaft, which is located at the end of the clamping plate 85 away from the axis of the turntable 82. When the clamping plate 85 moves, it drives the baffle 86 to move synchronously. A torsion spring is provided between the baffle 86 and the clamping plate 85. In its natural state, the baffle 86 and the clamping plate 85 are parallel and flush.

[0048] Referring to Figures 2 and 3, a limiting element 87 is also provided inside the clamping opening. The limiting element 87 corresponds one-to-one with the clamping plate 85 and is located between the corresponding clamping plate 85 and the inner wall of the clamping opening. Specifically, the limiting element 87 includes a movable seat 871 and a limiting spring 872. The movable seat 871 is slidably connected to the turntable 82 radially. The limiting spring 872 is installed between the turntable 82 and the movable seat 871, and the turntable 82 limits the movable seat 871 through the limiting spring 872. One end of the baffle 86 is hinged to the movable seat 871, with the hinge axis parallel to the rotation axis of the baffle 86. The hinge point between the baffle 86 and the movable seat 871 is located at the end of the baffle 86 closest to the axis of the turntable 82. Under the limiting action of the movable seat 871, when the two clamping plates 85 approach each other, the rotating plate rotates around the rotating shaft, and the end of the baffle 86 away from the axis of the turntable 82 approaches each other. At this time, both baffles 86 cooperate with the corresponding clamping plates 85 to hold the powder container tightly, further improving the movement stability of the powder container.

[0049] Referring to Figures 2 and 3, after the turntable 82 moves the powder container below the filling head 2 via the corresponding clamping plates 85, the drive component 12 moves the baffle 81 closer to the powder container. The baffle 81 and the turntable 82 are vertically staggered to prevent collision between the baffle 81 and the clamping plates 85. As the baffle 81 approaches the turntable 82, it gradually comes into contact with the outer circumference of the powder container, so that the two clamping plates 85 and the baffle 81 cooperate to clamp and position the powder container, placing it directly below the filling head 2. When using powder containers of different diameters, only the working stroke of the drive component 12 and the power component 62 needs to be adjusted, without changing the specific structure, thus improving filling convenience.

[0050] Referring to Figures 1 and 2, the frame 1 is equipped with a vacuum unit 13 corresponding to the turntable 82. The vacuum unit 13 is located on the side of the turntable 82 away from the corresponding baffle 81. During the rotation of the turntable 82, all the clamping plates 85 are driven to pass through the vacuum unit 13 in sequence. The vacuum unit 13 can be a negative pressure generator or a vacuum machine; there are no specific restrictions. The vacuum unit 13 is connected to two sets of vacuum nozzles 131, which are arranged vertically. When the turntable 82 rotates, all the clamping plates 85 pass through the space between the two sets of clamping plates 85 in sequence.

[0051] Referring to Figures 1 and 2, the suction ends of the two sets of suction nozzles 131 are close to each other. When the clamping plate 85 passes the suction end of the suction nozzle 131, the suction unit 13 draws in the external airflow through the suction nozzle 131. During the airflow process, the dust in the gap between the turntable 82 and the clamping plate 85 is discharged with the airflow and collected and cleaned, which helps to reduce the probability of powder accumulating in the gap of the mechanism and ensure the hygiene standards of the production environment.

[0052] Referring to Figures 2 and 4, the discharge pipe 21 is connected to the powder conveying channel, and the lower end of the discharge pipe 21 is provided with a discharge section, the inner diameter of which decreases sequentially from the upper guide wire. The receiving pipe 233 is located inside the discharge pipe 21 and is fixed coaxially with the discharge pipe 21, and an annular path for powder conveying is left between the receiving pipe 233 and the discharge pipe 21. The sealing rod 232 is located inside the receiving pipe 233 and is slidably connected to the receiving pipe 233 vertically. A straight plate is fixedly connected to the upper end of the receiving pipe 233 horizontally, and the straight rod is fixedly connected to the discharge pipe 21. The discharge pipe 21 supports the receiving pipe 233 through the straight rod.

[0053] Referring to Figures 2 and 4, the straight rod is hollow, and the receiving tube 233 is connected to the outside through the straight rod. One side of the sealing rod 232 passes through the straight rod and extends to the outside of the discharge rod. A pusher is installed on the outside of the discharge rod to drive the sealing rod 232 to move. The pusher is a cylinder or electric cylinder. When the pusher works, it drives the sealing rod 232 to move vertically. When the sealing rod 232 descends to the preset length, the sealing rod 232 gradually contacts the inner wall of the discharge tube 21 and seals the discharge tube 21. When the sealing rod 232 rises, it gradually moves away from the opening of the discharge port. At this time, the discharge port is in a smooth state.

[0054] Referring to Figures 2 and 4, the sealing disc 22 includes a movable cylinder 221, a sealing plate 222, a pressure sensor, and a moving part 224. The sealing plate 222 is located outside the vacuum tube 231 and is slidably connected to the vacuum tube 231 vertically. The movable cylinder 221 is located outside the sealing plate 222 and is slidably connected to the sealing plate 222 axially. A retaining ring is fixed at the lower end of the movable cylinder 221, located at the lower end of the sealing plate 222, thereby preventing the sealing plate 222 from detaching from the movable cylinder 221. The pressure sensor is installed inside the movable cylinder 221, and the detection end of the pressure sensor is connected to the upper surface of the sealing plate 222. When the lower surface of the sealing plate 222 is subjected to an upward thrust, the pressure sensor detects and records the magnitude of the thrust on the sealing plate 222.

[0055] Referring to Figures 2 and 4, a counterweight ring 225 is also provided inside the movable cylinder 221. The counterweight ring 225 is located above the sealing plate 222 and is slidably connected to the movable cylinder 221 vertically. An elastic element 226 is provided between the counterweight ring 225 and the sealing plate 222. The elastic element 226 is preferably a spring, with one end of the spring fixedly connected to the counterweight ring 225 and the other end fixedly connected to the sealing plate 222. The counterweight ring 225 applies its own weight to the sealing plate 222 through the elastic element 226. A moving part 224 is installed on the outside of the vacuum tube 231, specifically an electric actuator, used to drive the movable cylinder 221 to move vertically. The control center is in contact with both the pressure detection sensor and the moving part 224, and drives the moving part 224 to work based on the detection result of the pressure detection sensor.

[0056] Referring to Figures 3 and 4, when the powder container is directly below the discharge pipe 21, the lifting platform 4 lifts the powder container upwards. At this time, the weight of the powder container is weighed by a weight detection sensor. During this process, the power component 62 drives the movable ring 841 upwards, so that all clamping plates 85 are in an open state and separated from the powder container. Furthermore, the drive component 12 drives the baffle 81 away from the powder container, thereby reducing the probability of excessive deviation in the weighing result due to the friction of the clamping plates 85 or the baffle 81 during the weighing process.

[0057] Referring to Figures 3 and 4, when the sealing plate 222 contacts the opening at the upper end of the powder container, it seals the powder container. At this time, the discharge pipe 21 extends into the powder container, and the gas inside the powder container is extracted through the external negative pressure pipe, thereby creating a negative pressure inside the powder container. Under the action of the negative pressure, the powder in the discharge pipe 21 automatically falls into the powder container with the airflow. During this process, the sealing plate 222 seals the powder container under the action of the counterweight ring 225, and the pressure sensor monitors and provides feedback on the pressure applied by the sealing plate 222 to the powder container in real time. This, in conjunction with the weight sensor, accurately measures the weight change of the container, thereby helping to improve filling accuracy.

[0058] The implementation principle of a linear powder filling machine according to an embodiment of this application is as follows: Multiple filling heads 2 and corresponding conveyor belts 5 are set up. When the feeding conveyor belt 3 conveys the powder containers, the detection unit 63 and guide plate 61 work together to push the powder containers sequentially onto the corresponding conveyor belts 5. The turntable 82 clamps the powder containers through the clamping plate 85 and the baffle 86. By adjusting the working stroke of the power component 62, it is easy to clamp powder containers of different diameters. When the turntable 82 rotates, it works with the baffle 81 to drive the powder containers to move stably, so that the powder containers accurately stop below the filling head 2, allowing the filling head 2 to fill the powder containers. During this process, the powder containers are sealed by the sealing plate 222, and the weight change of the powder containers is monitored by the weight detection sensor, thereby improving the accuracy of powder filling. Multiple split conveyor belts 5 work in coordination with the feeding conveyor belt 3. When all filling heads 2 are working at full load, the feeding conveyor belt 3, the split conveyor belts 5, and the unloading conveyor belt 7 are all working continuously, which helps to improve the continuity and stability of filling production.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A linear powder filling machine, comprising a frame (1), a conveying channel for conveying powder is provided above the frame (1), and a filling head (2) for discharging powder is connected to the end of the conveying channel, characterized in that, Also includes: The feeding conveyor belt (3) is set on one side of the frame (1). There are several filling heads (2), and the filling heads (2) are arranged in a transverse direction. The feeding conveyor belt (3) transports the powder container along the arrangement direction of the filling heads (2). A lifting platform (4) is set on the frame (1) and corresponds one-to-one with the filling head (2). The lifting platform (4) is located below the filling head (2) and moves vertically. The frame (1) is equipped with a lifting component (11) for moving the lifting platform (4). A weight detection sensor is set on the lifting platform (4) to detect the weight of the object lifted by the lifting platform (4). Separate conveyor belts (5) correspond one-to-one with the lifting platform (4) and are set along the direction of the feeding conveyor belt (3) pointing towards the lifting platform (4). Several guide components (6) The guide (6) corresponds one-to-one with the split conveyor belt (5) and is arranged along the length of the feeding conveyor belt (3). When the guide (6) is working, it drives the powder container to transition from the feeding conveyor belt (3) to the split conveyor belt (5). The unloading conveyor belt (7) is located on the side of the lifting platform (4) away from the split conveyor belt (5) and is arranged along the arrangement direction of the filling head (2). The conveying component is set on the frame (1) and corresponds one-to-one with the filling head (2). It is used to drive the powder container to move sequentially along the arrangement direction of the split conveyor belt (5), the lifting platform (4) and the unloading conveyor belt (7).

2. A linear powder filling machine according to claim 1, characterized in that: Both sides of the feeding conveyor belt (3) and the split conveyor belt (5) are equipped with guardrails, and the inner side of the guardrails has a channel for the movement of powder containers.

3. A linear powder filling machine according to claim 1, characterized in that: The guide component (6) includes a guide plate (61), a power component (62), and a detection unit (63). A support plate (31) is provided on one side of the feeding conveyor belt (3). The guide plate (61) is located on the side of the feeding conveyor belt (3) away from the split conveyor belt (5) and is rotatably connected to the support plate (31) in the transverse direction. The power component (62) is set on the support plate (31) and is used to drive the guide plate (61) to rotate. The detection unit (63) is set on one side of the feeding conveyor belt (3) and is connected to the power component (62). When the detection unit (63) detects that the powder container is close to the guide plate (61), it controls the power component (62) to work.

4. A linear powder filling machine according to claim 1, characterized in that: The filling head (2) includes a discharge pipe (21) and a sealing disc (22). The discharge pipe (21) is connected to the conveying channel and is set along the conveying channel. The discharge pipe (21) is provided with a discharge unit (23) for driving the powder to be discharged quantitatively from the conveying channel. The discharge pipe (21) is located above the lifting platform (4), and the diameter of the lower end of the discharge pipe (21) is smaller than the inner diameter of the powder container. The sealing disc (22) is located outside the discharge pipe (21), and the diameter of the lower end face of the sealing disc (22) is larger than the diameter of the powder container. During the process of filling the powder container, the discharge pipe (21) is located inside the powder container. At this time, the sealing disc (22) seals the powder container.

5. A linear powder filling machine according to claim 4, characterized in that: The sealing disc (22) includes a movable cylinder (221), a sealing disc (22), a pressure detection sensor, and a moving part (224). The movable cylinder (221) is located outside the discharge pipe (21) and is slidably connected to the discharge pipe (21) along the axial direction. The moving part (224) is located outside the discharge pipe (21) and is used to drive the movable cylinder (221) to move. The sealing disc (22) is located at the lower end of the movable cylinder (221) and moves synchronously with the movable cylinder (221). During the filling process, the lower end face of the sealing disc (22) contacts the upper end face of the powder container. The pressure detection sensor is located on the movable cylinder (221) and is used to detect the pressure on the lower end face of the sealing disc (22). The moving part (224) is connected to the pressure detection sensor and drives the movable cylinder (221) to move vertically according to the pressure feedback value, so that the pressure on the lower end face of the sealing disc (22) remains balanced.

6. A linear powder filling machine according to claim 5, characterized in that: The sealing disc (22) is slidably connected to the movable cylinder (221) in the vertical direction, and a counterweight ring (225) is provided at the upper end of the sealing disc (22). The counterweight ring (225) is slidably connected to the sealing disc (22) in the vertical direction. An elastic element (226) is provided between the counterweight ring (225) and the sealing disc (22). The elastic element (226) is in a deformed state and has a tendency to push the counterweight ring (225) away from the sealing disc (22).

7. A linear powder filling machine according to claim 1, characterized in that: The conveying components include a baffle (81), a turntable (82), a rotating component (83), and a movable component (84). The turntable (82) is rotatably connected to the frame (1) in the transverse direction. The rotating component (83) is mounted on the frame (1) and is used to drive the turntable (82) to rotate. The outer circle of the turntable (82) is evenly provided with multiple clamping ports in the circumferential direction. Two clamping plates (85) are provided on the inner side of the clamping ports. The side of the clamping plate (85) near the center of the turntable (82) is rotatably connected to the turntable (82) in the transverse direction. The movable component (84) is mounted on the frame (1) and is used to drive the two clamping plates (85) in the same clamping port to move closer or further away from each other. The baffle (81) is connected to the frame (1) and is arranged in an arc shape in the circumferential direction of the turntable (82). The gap between the baffle (81) and the turntable (82) forms a transfer channel. One end of the transfer channel faces the sorting conveyor belt (5), and the other end faces the unloading conveyor belt (7).

8. A linear powder filling machine according to claim 7, characterized in that: The baffle (81) is slidably connected to the frame (1) in the direction of approaching or moving away from the turntable (82), and the frame (1) is provided with a drive (12) for pushing the baffle (81) to move.

9. A linear powder filling machine according to claim 7, characterized in that: The clamping plate (85) is provided with a baffle (86) on the side away from the axis of the turntable (82). The baffle (86) is rotatably connected to the clamping plate (85). The turntable (82) is provided with a limiting member (87) connected to the baffle (86). When the clamping plate (85) rotates, it drives the baffle (86) to move synchronously. At this time, the limiting member (87) drives the baffle (86) to rotate in the opposite direction to the clamping plate (85).

10. A linear powder filling machine according to claim 7, characterized in that: The frame (1) is fixedly provided with an air extraction unit (13). The air extraction unit (13) is located on the side of the turntable (82) away from the baffle (81). The air extraction unit (13) is connected to two sets of vertically arranged air extraction nozzles (131), and the air extraction ends of all the air extraction nozzles (131) are close to each other. When the turntable (82) rotates, it drives all the clamping plates (85) to pass through the air extraction area of ​​the air extraction nozzles (131) in sequence.

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