Self-sealing butt and self-emptying powder conveying device

Abstract

The application discloses a self-sealing butt joint and self-emptying powder conveying device, which comprises a conveying guide rail, a material box, a discharging mechanism, a feeding mechanism, a capping and sealing mechanism, a discharging mechanism and an emptying mechanism; the conveying guide rail is used for conveying the material box; compared with the prior art, the powder can be fed into the material box, the powder can be stored in the material box and conveyed through the conveying guide rail, the opening on the top of the material box is capped to realize the sealing of the cavity in the material box, and the powder can be discharged through butt joint sealing, through the cooperation of the conveying guide rail, the discharging mechanism, the feeding mechanism, the capping and sealing mechanism and the discharging mechanism, and compared with the powder conveying mode of a belt, the powder conveying mode of the conveying guide rail and the material box can prevent the powder from leaking, adhering, causing proportion deviation and causing the uniformity of the powder to decrease due to stratification, and effectively improves the quality of the powder.

Description

Technical Field

[0001] This invention relates to the field of powder conveying devices, and particularly to a self-sealing and self-cleaning powder conveying device. Background Technology

[0002] Glass batching is the first step in glass production and plays a decisive role in the quality of glass and production efficiency.

[0003] The quality of glass largely depends on the accuracy and uniformity of the batching process. Precise batching ensures that the glass composition meets the intended design requirements, thereby guaranteeing good physical properties of the glass product, such as strength, transparency, and chemical stability. Deviations in the batching process may lead to defects such as bubbles, streaks, and insufficient strength in the glass, affecting the product's yield and lifespan. Furthermore, the efficiency of the batching process directly impacts the efficiency of the entire glass production process.

[0004] Traditional glass batching processes utilize mechanical equipment such as belt conveyors and bucket elevators for material transport. At the drop-off or transfer points of the belt conveyor, material leakage, adhesion leading to proportioning deviations, and delamination causing reduced uniformity can occur due to belt misalignment, poor sealing, or impact from drops, thus affecting the accuracy and uniformity of the glass batch. Therefore, designing a conveying device with sealing, precision, and high efficiency is essential. Summary of the Invention

[0005] To address the problems of low precision, high energy consumption, dust leakage, material volatilization, and residue in traditional batching technologies, a self-sealing docking and self-cleaning powder conveying device is provided. This optimizes the glass batching process, improves the uniformity of glass composition, and thus enhances product strength and stability.

[0006] One objective of this invention is achieved through the following technical solution: a self-sealing and self-cleaning powder conveying device, comprising a conveying guide rail, a material box, a discharge mechanism, a feeding mechanism, a capping and sealing mechanism, a discharging mechanism, and a cleaning mechanism. The conveying guide rail is used to convey the material box. The discharge mechanism is mounted at the lower opening of the material box. The feeding mechanism, the capping and sealing mechanism, and the discharging mechanism are sequentially arranged above the conveying guide rail from right to left. A cylinder five is provided on the side of the conveying guide rail near the discharging mechanism, and a lifting channel is fixedly provided at the output end of the cylinder five. The discharge mechanism includes an installation assembly, a sealing plate rotatably connected to the inner wall of the installation assembly, and a drive assembly installed on one side of the material box. The installation assembly consists of an upper installation sleeve and a lower installation sleeve bolted together. The assembly consists of a slide rail symmetrically mounted on one side of the material box, a fixed frame slidably connected to the slide rail, a pushing part disposed on one side wall of the fixed frame, a limiting member bolted to one side of the fixed frame, a crank rotatably connected to the fixed frame, a rotating plate rotatably connected to one end of the crank, a rotating shaft fixed to one end of the rotating plate, and a snap-fit ​​component symmetrically fixed to one side of the material box. The limiting member and the snap-fit ​​component are in a limiting snap-fit ​​connection. The rotating shaft movably passes through one side wall of the upper mounting sleeve and the lower mounting sleeve. The feeding mechanism consists of a photoelectric sensor 1 symmetrically mounted on the conveying guide rail, a support frame symmetrically mounted on one outer wall of the conveying guide rail, and cylinders 1 and 6 bolted to the support frame. A light-reflecting area is provided in the middle of one side wall of the material box. This facilitates powder feeding into the material box, automatic conveying of the material box, sealing of the material box, and docking and discharging of powder. Multiple positioning sensors achieve precise control of the material box position to achieve precise docking and sealing of the material box, making it convenient to use.

[0007] According to the self-sealing and self-cleaning powder conveying device, the diameter of the sealing plate is matched with the inner diameter of the upper mounting sleeve and the inner diameter of the lower mounting sleeve. The sealing plate can seal the inner walls of the upper and lower mounting sleeves, thereby achieving the sealing of the material box and preventing the powder inside the material box from flowing out through the inner wall channels of the upper and lower mounting sleeves, thus achieving the purpose of self-sealing of the material box.

[0008] According to the self-sealing docking and self-emptying powder conveying device, the emptying mechanism includes a crossbeam fixed on the support frame, a cylinder two bolted to the crossbeam, a connecting rod rotatably connected to one end of the cylinder two, a support member fixed on the support frame, and a striking member disposed on one side of the connecting rod. The connecting rod is rotatably connected to the inner wall of the support member. The material box has a striking part fixed on the side near the striking member. The conveying guide rail is a multi-section structure, and a weighing sensor is fixed below the leftmost conveying guide rail. After the material box docks with the lifting channel, the emptying mechanism can strike the outer shell of the material box to prevent arching and bridging during powder feeding, and can also achieve the purpose of emptying the powder inside the material box.

[0009] According to the self-sealing and self-cleaning powder conveying device, the feeding mechanism includes a docking plate, a feeding chute disposed above the docking plate, and cylinders three fixed in a circular array on the side wall of the feeding chute, one end of which is connected to the docking plate. The docking plate can temporarily seal the upper surface of the material box, thereby reducing dust generated during the feeding process and protecting the environment when powder is fed into the material box through the feeding chute.

[0010] According to the self-sealing docking and self-cleaning powder conveying device, a photoelectric sensor is installed on the side of the conveying guide rail near the feeding mechanism, and the size of the docking plate is adapted to the outer diameter of the material box. This facilitates accurate detection of the material box's position, ensuring that the material box and the docking plate are aligned.

[0011] According to the self-sealing and self-cleaning powder conveying device, the sealing mechanism includes a cylinder four located above the conveying guide rail, grippers fixedly arranged in a circular array at one end of the cylinder four, a conical handle movably connected to the inner wall of the grippers, and a cover plate fixed below the conical handle. This facilitates the covering of the upper surface of the material box, thereby sealing the material box and preventing external impurities and dust from entering its interior during conveying, thus avoiding affecting the quality of the powder.

[0012] According to the self-sealing and self-cleaning powder conveying device, a photoelectric sensor is installed on the side of the conveying guide rail near the sealing mechanism. This facilitates accurate detection of the material box's position, ensuring that the material box and the cover plate are aligned.

[0013] According to the self-sealing and self-cleaning powder conveying device, the outer diameter of the cover plate is matched with the outer diameter of the material box. This facilitates the installation of the cover plate on the material box to achieve closure of the material box.

[0014] According to the self-sealing docking and self-cleaning powder conveying device, the outer wall of the hopper is fixed with clamping positions in a ring array. These clamping positions facilitate the placement of the hopper onto the conveyor rail and its transport by an external forklift.

[0015] According to the self-sealing and self-cleaning powder conveying device, a control system is installed outside the conveying guide rail. The unloading mechanism, the feeding mechanism, the capping and sealing mechanism, the discharging mechanism, and the cleaning mechanism are all communicatively connected to the control system. This facilitates the operation of the automatic control device.

[0016] The above-mentioned solution has the following beneficial effects:

[0017] 1. By setting up a feeding mechanism, a feeding mechanism, and a discharging mechanism, compared with the existing technology, the powder can be fed into the hopper through the cooperation of the conveying guide rail, the discharging mechanism, the feeding mechanism, the capping and sealing mechanism, and the unloading mechanism. The powder can be stored in the hopper and transported through the conveying guide rail. The opening at the top of the hopper is capped to seal the internal cavity of the hopper and to achieve sealed unloading. Compared with the belt conveying method, the method of conveying powder with the conveying guide rail and the hopper will not cause leakage, adhesion leading to proportion deviation, or stratification leading to a decrease in uniformity during the conveying process. This avoids environmental pollution and powder waste, and effectively improves the quality of the powder.

[0018] 2. Through the setting of feeding mechanism, unloading mechanism, cylinder five and lifting channel, the docking plate in the feeding mechanism can temporarily seal the upper opening of the material box to reduce the dust generated during the process of feeding powder into the material box. Furthermore, the lifting channel driven by cylinder five moves upward to dock with the lower opening of the material box, thereby achieving dust-free unloading, reducing dust and protecting the environment.

[0019] 3. Through the setting of the emptying mechanism and the weighing sensor, the weighing sensor can monitor the powder discharge flow rate of the hopper in real time to avoid bulging and bridging of the powder during the discharge process. When the powder discharge flow rate is detected to be abnormal, the emptying mechanism strikes the striking part on the outer wall of the hopper to vibrate the hopper and restore the powder discharge flow rate to normal. Thus, with the cooperation of the weighing sensor and the emptying mechanism, the powder inside the hopper can be emptied, effectively improving the convenience of the device.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1This is a top view schematic diagram of the overall structure of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0023] Figure 2 This is a schematic diagram of the conveying guide rail of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0024] Figure 3 This is a schematic diagram of the feeding mechanism of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0025] Figure 4 This is a schematic diagram of the material box structure of the self-sealing docking and self-emptying powder conveying device of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation components of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0027] Figure 6 This invention relates to a self-sealing and self-cleaning powder conveying device. Figure 5 Enlarged structural diagram at point A in the middle;

[0028] Figure 7 This is a schematic diagram of the unloading mechanism of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0029] Figure 8 This is a schematic diagram of the lifting channel of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0030] Figure 9 This is a schematic diagram of the feeding mechanism of the self-sealing docking and self-cleaning powder conveying device of the present invention;

[0031] Figure 10 This invention relates to a self-sealing and self-cleaning powder conveying device. Figure 9 Enlarged structural diagram at point B.

[0032] Legend:

[0033] 1. Conveying guide rail; 2. Material box; 3. Unloading mechanism; 31. Mounting assembly; 311. Upper mounting sleeve; 312. Lower mounting sleeve; 32. Sealing plate; 33. Drive assembly; 331. Slide rail; 332. Pushing part; 333. Fixing frame; 334. Limiting component; 335. Crank; 336. Rotating plate; 337. Rotating shaft; 338. Snap-fit ​​component; 4. Feeding mechanism; 41. Connecting plate; 42. Feed chute; 43. Cylinder three; 5. Cover sealing mechanism; 51. Cylinder four; 5 2. Gripper; 53. Conical handle; 54. Cover plate; 6. Unloading mechanism; 61. Photoelectric sensor one; 62. Support frame; 63. Cylinder one; 64. Cylinder six; 7. Clearing mechanism; 71. Cross frame; 72. Cylinder two; 73. Connecting rod; 74. Support component; 75. Impact component; 8. Light reflection area; 9. Weighing sensor; 10. Impact part; 11. Photoelectric sensor two; 12. Photoelectric sensor three; 13. Gripping position; 14. Control system; 15. Lifting channel; 16. Cylinder five. Detailed Implementation

[0034] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0035] Reference Figures 1-10A self-sealing and self-cleaning powder conveying device includes a conveying guide rail 1, a material box 2, a discharge mechanism 3, a feeding mechanism 4, a capping and sealing mechanism 5, a discharging mechanism 6, and a cleaning mechanism 7. The conveying guide rail 1 is used to convey the material box 2. The discharge mechanism 3 is assembled at the lower opening of the material box 2. The feeding mechanism 4, the capping and sealing mechanism 5, and the discharging mechanism 6 are arranged sequentially above the conveying guide rail 1 from right to left. A cylinder 5 16 is arranged on the side of the conveying guide rail 1 near the discharging mechanism 6. A lifting channel 15 is fixed at the output end of the cylinder 5 16. The discharge mechanism 3 includes an installation component 31, a sealing plate 32 rotatably connected to the inner wall of the installation component 31, and a drive component 33 installed on one side of the material box 2. The installation component 31 consists of an upper installation sleeve 311 and a lower installation sleeve 312 bolted together. The drive component 33 consists of a slide rail 331 symmetrically installed on one side of the material box 2, a fixed frame 333 slidably connected to the slide rail 331, and a component set on the fixed frame. The device consists of a pushing part 332 on one side wall of the 333, a limiting part 334 bolted to one side of the fixed frame 333, a crank 335 rotatably connected to the fixed frame 333, a rotating plate 336 rotatably connected to one end of the crank 335, a rotating shaft 337 fixed to one end of the rotating plate 336, and a snap-fit ​​part 338 symmetrically fixed to one side of the material box 2. The limiting part 334 and the snap-fit ​​part 338 are in a limiting snap-fit ​​connection. The rotating shaft 337 movably passes through the upper mounting sleeve 311. The feeding mechanism 6 consists of a photoelectric sensor 61 symmetrically mounted on the conveying guide rail 1, a support frame 62 symmetrically mounted on the outer wall of one side of the conveying guide rail 1, and cylinders 63 and 64 bolted to the support frame 62. A light reflection area 8 is provided in the middle of one side wall of the material box 2. The diameter of the sealing plate 32 is adapted to the inner diameter of the upper mounting sleeve 311 and the inner diameter of the lower mounting sleeve 312.

[0036] By setting up the conveyor rail 1, unloading mechanism 3, feeding mechanism 4, sealing mechanism 5, and discharge mechanism 6, powder can be fed into the material box 2, the material box 2 stores the powder, the powder is conveyed to the material box 2 via the conveyor rail 1, the opening at the top of the material box 2 is covered to seal the internal cavity of the material box 2, and the powder is discharged through a sealed connection. This effectively improves the powder conveying efficiency and makes the conveying process dust-free. Compared with belt conveying, the conveyor rail 1 and material box 2 conveying method can avoid leakage and adhesion of the batch material during the conveying process, which can lead to proportion deviation and stratification, resulting in a decrease in uniformity and improving the quality of the powder.

[0037] Specifically, the emptying mechanism 7 includes a crossbeam 71 fixed on the support frame 62, a cylinder 72 bolted to the crossbeam 71, a connecting rod 73 rotatably connected to one end of the cylinder 72, a support member 74 fixed on the support frame 62, and a striking member 75 disposed on one side of the connecting rod 73. The connecting rod 73 is rotatably connected to the inner wall of the support member 74. A striking part 10 is fixed on the side of the material box 2 near the striking member 75. The conveying guide rail 1 is a multi-section structure, and a weighing sensor 9 is fixed below the leftmost conveying guide rail 1.

[0038] In this embodiment, the emptying mechanism 7 is used to vibrate the outer wall of the material box 2 during the unloading process of the powder. The purpose of the vibration is to prevent the powder from bulging or bridging inside the material box 2, and to ensure that the powder inside the material box 2 is completely discharged, thus avoiding the residue of a certain amount of powder inside the material box 2, thereby achieving the purpose of emptying the powder inside the material box 2. The operating principle of the emptying mechanism 7 is as follows: the control system 14 drives the cylinder 2 72 to move up and down, which drives the connecting rod 73 to rotate on the inner wall of the support member 74. The connecting rod 73 drives the striking member 75 to move. The striking member 75 contacts the striking part 10 and strikes the striking part 10, thereby achieving the vibration of the material box 2. In addition, a weighing sensor 9 is provided to monitor the discharge of the powder in real time. When the powder discharge is not smooth, the emptying mechanism 7 can strike the material box 2 to ensure smooth discharge of the powder. Thus, with the cooperation of the weighing sensor 9 and the emptying mechanism 7, the purpose of emptying the powder inside the material box 2 is achieved.

[0039] Specifically, the feeding mechanism 4 includes a docking plate 41, a feeding chute 42 disposed above the docking plate 41, and cylinders 43 fixed in a ring array on the side wall of the feeding chute 42. One end of the cylinders 43 is connected to the docking plate 41. A photoelectric sensor 11 is installed on the side of the conveying guide rail 1 near the feeding mechanism 4. The size of the docking plate 41 is adapted to the outer diameter of the material box 2.

[0040] In this embodiment, the feeding mechanism 4 is used to feed powder into the hopper 2 for transportation. When the hopper 2 is conveyed to the feeding mechanism 4 by the conveying guide rail 1 and detected by the photoelectric sensor 11, the conveying guide rail 1 stops conveying the hopper 2. At this time, the center points of the photoelectric sensor 11, the light reflection area 8, the hopper 2 and the feeding chute 42 are all on the same plane, so that the hopper 2 can accurately dock with the discharge point of the feeding chute 42. The feeding mechanism 4 is connected to the external truss, which ensures the fixed position and operational stability of the feeding mechanism 4. The cylinder 43 can drive the docking plate 41 to descend and temporarily close the upper opening of the hopper 2. The advantage of this temporary closure is that it reduces the dust flying during powder feeding. Then, the powder is manually or automatically fed into the hopper 2 through the feeding chute 42 by the external automatic feeding device. The hopper 2 serves to store the powder, thereby completing the powder feeding and effectively improving the powder conveying efficiency.

[0041] Specifically, the capping and sealing mechanism 5 includes a cylinder 51 located above the conveying guide rail 1, a gripper 52 fixed in a ring array at one end of the cylinder 51, a conical handle 53 movably connected to the inner wall of the gripper 52, and a cover plate 54 fixed below the conical handle 53. A photoelectric sensor 12 is installed on the side of the conveying guide rail 1 near the capping and sealing mechanism 5. The outer diameter of the cover plate 54 is adapted to the outer diameter of the material box 2.

[0042] In this embodiment, the initial state of the material box 2 during conveying is that it is open at the top and closed at the bottom through the unloading mechanism 3. When the material box 2 is conveyed to the capping and sealing mechanism 5, the cover plate 54 overlaps the inner wall of the material box 2. After the capping and sealing mechanism 5 is applied, the material box 2 is closed at the top through the cover plate 54 and closed at the bottom through the unloading mechanism 3, thereby achieving the purpose of sealing the material box 2 and preventing a large amount of impurities and dust from mixing into the powder during the conveying process, which would affect the quality of the powder. Figure 2 As shown, the gap between two of the three grippers 52 is wider than the width of the conical handle 53. Therefore, when the conveying guide rail 1 moves the material box 2 to one side of the feeding mechanism 6, the conical handle 53 can disengage from the grippers 52, and the cover plate 54 disengages from the grippers 52 and moves synchronously with the material box 2. Furthermore, the area between the lower parts of the three grippers 52 is smaller than the diameter of the upper outer wall of the conical handle 53, so the grippers 52 can smoothly clamp the cover plate 54 and cause it to overlap the upper inner wall of the material box 2 to achieve the sealing of the material box 2, which is convenient to use.

[0043] Specifically, clamping positions 13 are fixed on the outer wall of the material box 2 in a ring array.

[0044] In this embodiment, the clamping position 13, which facilitates the external forklift to clamp the material box 2, places the material box 2 onto the conveying guide rail 1 for transport. The material box 2 serves as a carrier for the storage, transport, and unloading of powder.

[0045] Specifically, a control system 14 is installed outside the conveying guide rail 1, and the unloading mechanism 3, the feeding mechanism 4, the cover sealing mechanism 5, the discharge mechanism 6, and the emptying mechanism 7 are all connected to the control system 14 in communication.

[0046] In this embodiment, the control system 14 can be a PLC controller or other controllers. The automatic conveying of the material box 2, the automatic feeding of powder, the conveying of powder, and the unloading of powder are realized through the control system 14, which effectively improves the automatic conveying efficiency of powder. In addition, the sealed docking method during the powder unloading process can avoid dust flying and is convenient to use.

[0047] Working principle: The material box 2 is placed on the conveying guide rail 1 by the clamping position 13 of the external forklift, and the material box 2 is conveyed by the conveying guide rail 1. In the initial state of the material box 2, the unloading mechanism 3 is in a closed state, so the material box 2 is open at the top and closed at the bottom. The material box 2 is conveyed by the conveying guide rail 1. When the light reflection area 8 on the material box 2 reflects the light emitted by the photoelectric sensor 11 and is received by the photoelectric sensor 11, the photoelectric sensor 11 transmits the electrical signal to the control system 14. The control system 14 controls the conveying guide rail 1 to stop. Then the control system 14 drives the cylinder 43 of the feeding mechanism 4 to move the docking plate 41 to the upper part of the material box 2, completing the temporary closure of the material box 2 by the docking plate 41. The powder is fed into the material box 2 through the feeding chute 42. The powder can be fed manually or through the external conveying device. After the powder is fed, the docking plate 41 returns to its position and the conveying guide rail 1 is restarted to continue to drive the material box 2 to be conveyed.

[0048] When the light reflecting area 8 on the material box 2 reflects the light emitted by the photoelectric sensor 3 12 and is received by the photoelectric sensor 3 12, the photoelectric sensor 3 12 transmits an electrical signal to the control system 14. The control system 14 drives the cylinder 4 51 to place the cover plate 54 at the opening above the material box 2. The lower surface of the cover plate 54 is provided with a protrusion, so that the cover plate 54 can be stably attached to the inner wall of the material box 2. The conveying guide rail 1 is started again to continue to drive the material box 2 to convey. Since the gap width between two of the three grippers 52 is greater than the width of the conical handle 53, the conical handle 53 on the cover plate 54 can be disengaged from the grippers 52 under the drive of the conveying guide rail 1 and the material box 2. Thus, the automatic cover plate 54 is covered by the conveying of the conveying guide rail 1.

[0049] After the cover is applied, the control system 14 drives the material box 2 to continue conveying via the conveying guide rail 1. The cover plate 54 overlaps the inner wall of the material box 2, so the cover plate 54 moves synchronously with the material box 2. When the light reflecting area 8 on the material box 2 reflects the light emitted by the photoelectric sensor 61 and is received by the photoelectric sensor 61, the photoelectric sensor 61 transmits an electrical signal to the control system 14. The control system 14 closes the conveying guide rail 1 and starts the cylinder 16 to drive the lifting channel 15 to move upward. The cylinder 16 is connected to the support frame 62, which supports the stability of the cylinder 16. The lifting channel 15 is connected to the lower mounting sleeve 312 of the material box 2. Then, the cylinder 63 is started to move it to one side of the fixed frame 333. The output end of the cylinder 63 abuts against the pushing part 332 and pushes the pushing part 332. The pushing part 332 drives the fixed frame 333 to move on the slide rail 331. While the fixed frame 333 moves on the slide rail 331, it pushes the crank 335 to rotate. The crank 335 rotates, causing the rotating plate 336 to rotate. Since the rotating shaft 337 is in a fixed position, the rotating plate 336 rotates, causing the rotating shaft 337 to rotate. The rotating shaft 337 is fixedly connected to the sealing plate 32. The rotating shaft 337 causes the sealing plate 32 to rotate on the inner walls of the upper mounting sleeve 311 and the lower mounting sleeve 312. The rotation of the sealing plate 32 opens the lower opening of the material box 2. At this time, the limiting piece 334 is engaged with the inner wall of the engaging piece 338 near the cylinder 64 (it should be noted that the rotation angle range of the sealing plate 32 is 0-90 degrees, and the moving stroke of the fixed frame 333 is matched with the rotation angle of the sealing plate 32, that is, the maximum moving stroke of the fixed frame 333 is the maximum rotation angle of the sealing plate 32). At this time, the state of the material box 2 is that the upper part is sealed and the lower part is open, so that the powder inside the material box 2 can be discharged through its lower opening and the lifting channel 15. The lifting channel 15 can be connected with the external silo, kiln, etc. to realize the discharge of powder.

[0050] During the powder feeding process, the weighing sensor 9 monitors the powder feeding situation inside the hopper 2 in real time. The weighing sensor 9 weighs the weight of the last section (leftmost) of the conveying guide rail 1 plus the total weight of the hopper 2 (including the weight of the powder inside the hopper 2). The initial weight of the weighing sensor 9 is the total weight of the last section (leftmost) of the conveying guide rail 1 plus the total weight of the hopper 2 (excluding the weight of the powder inside the hopper 2). As the powder in the hopper 2 is being fed, the weighing sensor 9 monitors the weight in real time. Based on the monitored weight, the control system 14 automatically calculates and analyzes the powder feeding flow rate. For example, if the weight of the conveying guide rail 1 plus the total weight of the hopper 2 (including the weight of the powder inside the hopper 2) decreases by 20 kg in one minute, and then decreases by 1 kg in the next minute, it indicates that the powder feeding flow rate inside the hopper 2 has slowed down, i.e., there is a problem with poor feeding. If powder bridging or arching occurs inside box 2, the emptying mechanism 7 can be used to tap box 2 to ensure smooth material discharge. The weighing sensor 9 transmits the detection signal to the control system 14. The control system 14 receives the signal and drives cylinder 72 in the emptying mechanism 7. The output end of cylinder 72 moves upward and drives the striking element 75 to move to one side of the striking part 10 via connecting rod 73. The striking element 75 strikes the striking part 10, thereby vibrating box 2 to restore the powder discharge speed. With the cooperation of the weighing sensor 9 and the emptying mechanism 7, the powder inside box 2 can be completely discharged. That is, when the weight of the last section of the conveying guide rail 1 plus the total weight of box 2 (including the weight of the powder inside box 2) is consistent with the weight of the last section of the conveying guide rail 1 plus the total weight of box 2 (excluding the weight of the powder inside box 2) after a period of discharge, it indicates that the powder discharge is complete, thus achieving the purpose of emptying the powder inside box 2.

[0051] After the powder is fed, cylinder 63 of the feeding mechanism 6 returns to its original position and cylinder 64 is activated. Cylinder 64 abuts against the pushing part 332 and drives the fixed frame 333 to slide on the slide rail 331. The sliding of the fixed frame 333 drives the crank 335 and the rotating plate 336 to rotate. The rotating plate 336 drives the sealing plate 32 to rotate, so that the sealing plate 32 closes the opening at the bottom of the material box 2. At this time, the limiting part 334 is engaged with the inner wall of the locking part 338 near the cylinder 63 to prevent the sealing plate 32 from rotating on its own. The lifting channel 15 and the emptying mechanism 7 return to their original positions. The conveying guide rail 1 drives the material box 2 to move towards the side of the cover sealing mechanism 5. When the cover plate 54 moves into the gripper 52... When the wall is closed, cylinder 51 drives the gripper 52 to move upward, causing the cover plate 54 to detach from the material box 2, thereby realizing the recycling of the cover plate 54 and the recycling of the material box 2. This device facilitates the feeding, conveying and unloading of powder. During the unloading process, since the lifting channel 15 is sealed and connected to the bottom of the material box 2, the unloading is in a dust-free state, thereby reducing dust and protecting the environment. Moreover, compared with the belt conveying method, the method of conveying powder by using the conveyor rail 1 in conjunction with the material box 2 will not cause powder leakage, adhesion leading to proportion deviation, or stratification leading to a decrease in uniformity, thereby avoiding environmental pollution and powder waste, and effectively improving the quality of powder.

[0052] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A self-sealing and self-cleaning powder conveying device, characterized in that, The system includes a conveyor rail, a material box, an unloading mechanism, a feeding mechanism, a capping and sealing mechanism, a discharge mechanism, and an emptying mechanism. The conveyor rail is used to transport the material box. The unloading mechanism is installed at the lower opening of the material box. The feeding mechanism, the capping and sealing mechanism, and the discharge mechanism are arranged sequentially above the conveyor rail from right to left. A cylinder five is provided on the side of the conveyor rail near the discharge mechanism. A lifting channel is fixed at the output end of the cylinder five. The unloading mechanism includes an installation assembly, a sealing plate rotatably connected to the inner wall of the installation assembly, and a drive assembly installed on one side of the material box. The installation assembly consists of an upper installation sleeve and a lower installation sleeve bolted together. The drive assembly consists of a slide rail symmetrically installed on one side of the material box, a fixed frame slidably connected to the slide rail, a pushing part disposed on one side wall of the fixed frame, a limiting member bolted to one side of the fixed frame, a crank rotatably connected to the fixed frame, a rotating plate rotatably connected to one end of the crank, a rotating shaft fixed to one end of the rotating plate, and a snap-fit ​​member symmetrically fixed to one side of the material box. The limiting member and the snap-fit ​​member are in a limiting snap-fit ​​connection. The rotating shaft movably passes through one side wall of the upper installation sleeve and the lower installation sleeve. The unloading mechanism consists of a photoelectric sensor 1 symmetrically mounted on the conveying guide rail, a support frame symmetrically mounted on the outer wall of one side of the conveying guide rail, and cylinders 1 and 6 bolted to the support frame. A light reflection area is provided in the middle of one side wall of the material box. Cylinder 1 can abut against and push the pushing part, so that the rotating shaft drives the sealing plate to rotate for unloading. Cylinder 6 can abut against and push the pushing part, so that the sealing plate rotates to close the opening of the material box.

2. The self-sealing docking and self-cleaning powder conveying device according to claim 1, characterized in that, The diameter of the sealing plate is adapted to the inner diameter of the upper mounting sleeve and the inner diameter of the lower mounting sleeve.

3. The self-sealing and self-cleaning powder conveying device according to claim 1, characterized in that, The emptying mechanism includes a crossbeam fixed on the support frame, a cylinder two bolted to the crossbeam, a connecting rod rotatably connected to one end of the cylinder two, a support member fixed on the support frame, and a striking member disposed on one side of the connecting rod. The connecting rod is rotatably connected to the inner wall of the support member. The material box is fixedly provided with a striking part on the side near the striking member. The conveying guide rail is composed of multiple sections, and a weighing sensor is fixedly provided below the leftmost conveying guide rail.

4. The self-sealing and self-cleaning powder conveying device according to claim 1, characterized in that, The feeding mechanism includes a docking plate, a feeding chute disposed above the docking plate, and cylinders three fixed in a circular array on the side wall of the feeding chute, one end of which is connected to the docking plate.

5. The self-sealing docking and self-cleaning powder conveying device according to claim 4, characterized in that, A photoelectric sensor is installed on the side of the conveying guide rail near the feeding mechanism, and the size of the docking plate is adapted to the outer diameter of the material box.

6. The self-sealing docking and self-cleaning powder conveying device according to claim 1, characterized in that, The sealing mechanism includes a cylinder four located above the conveying guide rail, a gripper fixed to one end of the cylinder four in a circular array, a conical handle movably connected to the inner wall of the gripper, and a cover plate fixed below the conical handle.

7. The self-sealing docking and self-cleaning powder conveying device according to claim 6, characterized in that, A photoelectric sensor is installed on the side of the conveying guide rail near the sealing mechanism.

8. The self-sealing docking and self-cleaning powder conveying device according to claim 6, characterized in that, The outer diameter of the cover plate is adapted to the outer diameter of the hopper.

9. The self-sealing docking and self-cleaning powder conveying device according to claim 1, characterized in that, The outer wall of the hopper is fixed with clamping positions in a ring array.

10. The self-sealing and self-cleaning powder conveying device according to claim 1, characterized in that, A control system is installed outside the conveying guide rail. The unloading mechanism, the feeding mechanism, the sealing mechanism, the discharge mechanism, and the emptying mechanism are all communicatively connected to the control system.

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