Automatic locking material opening with self-cleaning function

Abstract

The utility model relates to an automatic locking material port with a self-cleaning function, which comprises a material port section which is in butt joint with a metal powder discharging port or a feeding port valve and a metal powder processing equipment feeding port or a discharging port valve, an air inlet nozzle port and an air discharging port which are arranged on the material port section, and the air inlet nozzle port is connected with an air source through an air inlet pipe. The gas and material discharging port is connected with the vacuum pump system through the gas outlet pipe, gas in the gas source cleans the interior of the material opening section through the gas inlet nozzle opening, the vacuum pump system is used for vacuumizing the material opening section, the gas and material discharging port is used for discharging gas mixed with metal impurities, and the inner wall of the material opening section is provided with a slope face in a protruding mode. The two sets of symmetrically-arranged air inlet nozzle openings are formed in the slope face, and the air material discharging opening is formed in the slope face. The utility model has the advantages that the inner wall of the material port section is designed into the conical surface and is matched with the air inlet nozzle port arranged at the conical tip position, so that the inner wall of the material port section is cleaned more cleanly, and the metal powder with different mesh numbers can be cleared.

Description

Technical Field

[0001] This utility model relates to the technical field of the metal powder industry, and in particular to an automatic locking feed port with self-cleaning function for metal powder processing equipment. Background Technology

[0002] After feeding or discharging is completed and the valve of the metal powder processing equipment is closed, metal powder remains on the outside of the valve towards the feed inlet. This metal powder, no longer protected by inert gas, is easily degraded when exposed to air. If this degraded metal powder mixes with the qualified metal powder passing through the feed inlet next time, it can lead to a decline in the quality of the produced metal powder products or even scrap. Currently, this degraded powder is primarily cleaned manually, which poses environmental pollution and potential health hazards to operators, and also makes automatic docking of the material tanks between upstream and downstream equipment impossible. Our company has developed a material inlet cleaning system for metal powder processing equipment to address the above-mentioned problems. The patent number is 2024218888967. This patent adopts an electric cleaning system to achieve automatic cleaning of the material inlet section, thereby solving many problems of manual cleaning. In particular, because the multiple air inlet nozzles of the blowing device blow along the tangential direction of the circle, the residual metal powder is gathered in the middle and then discharged through the air-material outlet. However, since the inner wall of the material inlet is currently a smooth plane, when the diameter of the residual metal powder is small (2-3 micrometers), it will adhere to the inner wall of the material inlet, resulting in incomplete cleaning. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide an automatic locking feed port with self-cleaning function to improve the cleanliness of the inner wall of the feed port section and to quickly connect to the feed tank flange, so as to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automatic locking feed port with self-cleaning function includes: a feed port section connecting a metal powder discharge or inlet valve to a metal powder processing equipment inlet or outlet valve; an air inlet nozzle and a gas-material outlet disposed on the feed port section; the air inlet nozzle being connected to an air source via an air inlet pipe; and the gas-material outlet being connected to a vacuum pump system via an air outlet pipe; the gas in the air source cleans the feed port section through the air inlet nozzle; the vacuum pump system is used to evacuate the feed port section; and the gas-material outlet is used to discharge gas mixed with metal impurities. The improvement is that the inner wall of the feed port section has a sloping surface, and two sets of symmetrically arranged air inlet nozzles are disposed on the sloping surface, as is the gas-material outlet.

[0006] As a preferred embodiment of this invention, the cross-section of the raised slope surface is a cone shape with two inclined surfaces, and the air inlet nozzle and the air outlet are located at the tip of the cone-shaped slope surface.

[0007] As a preferred embodiment of this utility model, two sets of six air inlet nozzles are symmetrically arranged on the inner wall of the feed inlet section.

[0008] As a preferred embodiment of this utility model, a protective cover is provided on the outer wall of the feed inlet section. The protective cover is used to seal and surround the air inlet pipe connected to the air inlet nozzle and the photoelectric sensor.

[0009] As a preferred embodiment of this invention, the gas discharge port and the air inlet nozzle are arranged perpendicularly.

[0010] As a preferred embodiment of this utility model, an air outlet sealing valve is installed on the air outlet pipe connected to the air outlet. A backflush port is provided on the pipeline between one end of the air outlet and the air outlet sealing valve. The backflush port is used to discharge the waste material remaining in the pipeline between one end of the air outlet and the air outlet sealing valve.

[0011] As a preferred embodiment of this utility model, it further includes a clamping device for quickly clamping the docking flange (tank flange) at the material inlet section. The clamping device consists of at least one symmetrically arranged clamping mechanism and a docking flange detection sensor (photoelectric switch). The clamping mechanism includes: a cylinder and / or a hydraulic cylinder, a bearing seat fixedly connected to the piston rod end of the cylinder and / or hydraulic cylinder, a push rod hinged to the bearing seat, and a locking hook rod hinged to the push rod. One end of the locking hook rod is hinged to the material inlet section near the cylinder and / or hydraulic cylinder, and the middle position of the locking hook rod is hinged to the push rod. The locking end of the locking hook rod clamps the docking flange under the action of the push rod. The docking flange detection sensor is used to detect the position of the docking flange and control the opening and closing of the cylinder and / or hydraulic cylinder.

[0012] As a preferred embodiment of this utility model, an annular gasket groove is provided on the end face of the material outlet section connected to the docking flange. A buffer washer is provided in the gasket groove, and an installation tension groove is provided on the buffer washer. A tensioning steel wire is fitted in the tension groove. A sealing corrugated groove is provided on the inner wall of the annular gasket groove. The soft buffer washer is squeezed into the sealing corrugated groove for sealing.

[0013] As a preferred embodiment of this utility model, after the locking hook rod of the clamping device clamps the connecting flange, the end of the push rod located on the bearing seat is lower than the end of the push rod located on the locking hook rod, so that the locking hook rod of the clamping mechanism self-locks after clamping the connecting flange.

[0014] As a preferred embodiment of this invention, the flange detection sensor is a photoelectric sensor, which is mounted on the outer wall of the feed inlet section via a photoelectric switch protective cover.

[0015] The advantages and positive effects of this utility model are:

[0016] 1. This utility model designs the inner wall of the feed inlet section as a conical surface, and with the air inlet nozzle installed at the tip of the cone, the inner wall of the feed inlet section is cleaned more thoroughly, thereby meeting the requirements for removing metal powders of different mesh sizes.

[0017] 2. This utility model uses symmetrically arranged air inlet nozzles for purging, which is more effective at cleaning metal powder with a thickness of only 2-3 micrometers on the inner wall of the material inlet section compared to the previous method of purging along the cross surface.

[0018] 3. This utility model adds a protective cover to the outer wall of the feed inlet section to seal and protect the air inlet pipe and photoelectric sensor, preventing metal powders such as lead, iron, and boron from damaging the air inlet pipe and sensor.

[0019] 4. This utility model adds a backflush port to discharge the waste material remaining in the pipeline between the gas discharge outlet and the gas outlet closure valve, thus preventing the remaining waste material from affecting the next discharge.

[0020] 5. This utility model improves the discharge efficiency by adding a clamping device for automatically docking and clamping the flange of the material tank. In addition, a buffer gasket for buffering and sealing is added to the clamping device.

[0021] 6. This utility model improves the safety of tank docking by adding a self-locking clamping mechanism to the clamping device. Attached Figure Description

[0022] Figure 1 This is a bottom view of the overall structure of the utility model.

[0023] Figure 2 yes Figure 1 AA sectional view.

[0024] Figure 3 yes Figure 1 BB cross-sectional view.

[0025] Figure 4 This is a top view of the overall structure of the utility model.

[0026] Figure 5 yes Figure 4 CC section view.

[0027] Figure 6 This is a cross-sectional view of the overall structure of the utility model.

[0028] Figure 7 This is one of the overall structural schematic diagrams of the utility model.

[0029] Figure 8 This is the second schematic diagram of the overall structure of the utility model.

[0030] Attached reference numerals: 1. Material inlet section; 2. Air and material outlet; 3. Air outlet pipe; 4. Sloping surface; 5. Backflush port; 6. Air and material outlet sealing valve; 7. Clamping mechanism; 8. Cylinder; 801. Bearing seat; 802. Push rod; 803. Locking hook rod; 804. Gasket groove; 805. Buffer washer; 806. Sealing corrugated groove; 807. Connecting flange detection sensor; 9. Air inlet pipe protective cover; 10. Air inlet pipe; 11. Detailed Implementation

[0031] See Figure 1-8 This embodiment provides an automatic locking feed port with self-cleaning function, including: a feed port section 1 that connects the metal powder discharge port or feed port valve to the metal powder processing equipment feed port or discharge port valve; an air inlet nozzle 2 and a gas discharge port 3 set on the feed port section 1; the air inlet nozzle 2 is connected to an air source (not shown) through an air inlet pipe 11; the gas discharge port 3 is connected to a vacuum pump system (not shown) through an air outlet pipe 4; the gas in the air source cleans the feed port section 1 through the air inlet nozzle 2; the vacuum pump system is used to evacuate the feed port section 1; and the gas discharge port 3 is used to discharge the gas mixed with metal impurities. The inner wall of the feed port section 1 has a raised slope surface 5. The cross-section of the raised slope surface 5 is a cone with two upper and lower slopes. Two sets of six air inlet nozzles 2 are symmetrically arranged at the cone tip of the cone slope surface 5, and one gas discharge port 3 is arranged at the cone tip of the cone slope surface 5. The gas discharge port 3 is arranged perpendicularly to the air inlet nozzles 2. Two air inlet pipe protective covers 10 are installed on the outer wall of the material inlet section 1. Three air inlet pipes 11 connected to each set of air inlet nozzles 2 are sealed and surrounded inside the air inlet pipe protective cover 10. A backflush port 6 for backflushing residual waste material in the air outlet pipe 4 and a gas-material outlet sealing valve 7 for opening and closing the air outlet pipe 4 are installed on the air outlet pipe 4. The backflush port 6 is located on the pipeline between one end of the gas-material outlet and the gas-material outlet sealing valve.

[0032] Furthermore, in this embodiment, a clamping device for quickly clamping the docking flange (tank flange) of the material outlet section 1 is also installed on the material outlet section 1. The clamping device consists of two symmetrically arranged clamping mechanisms 8 and two docking flange detection sensors (photoelectric switches) 9. The two docking flange detection sensors 9 are installed on the outer wall of the material outlet section through the photoelectric switch protective cover. The clamping mechanism 8 includes: a cylinder 801, a bearing seat 802 fixedly connected to the piston rod end of the cylinder 801, a push rod 803 hinged to the bearing seat 802, and a locking hook rod 804 hinged to the push rod 803. One end of the locking hook rod 804 is hinged to the feed port section 1 near the cylinder, and the middle part of the locking hook rod 804 is hinged to one end of the push rod 803. The locking end of the locking hook rod 804 is a hook-shaped locking hook. The hook-shaped locking hook of the locking hook rod 804 clamps the docking flange under the drive of the push rod 803. Two docking flange detection sensors 9 are used to detect the position of the docking flange and control the opening and closing of the two cylinders 801. An annular gasket groove 805 is provided on the end face of the material inlet section 1 that connects to the mating flange. A buffer washer 806 is provided inside the gasket groove 805. An installation tension groove is provided on the buffer washer 806, and a tensioning steel wire is fitted inside the tension groove. A sealing corrugated groove 807 is provided on the inner wall of the annular gasket groove 806. The rubber buffer washer is squeezed into the sealing corrugated groove for sealing. After the locking hook rod 804 of the clamping device clamps the mating flange, the end of the push rod 803 located in the bearing seat 802 is lower than the end of the push rod 803 located in the locking hook rod 804, so that the locking hook rod 804 of the clamping mechanism 8 self-locks after clamping the mating flange.

[0033] Working principle: The inner wall of the conical section 1 is purged by two sets of six air inlet nozzles 2. Vacuum cleaning is then performed by the air-material discharge outlet 3, which is perpendicular to the purging direction of the air inlet nozzles 2, effectively improving the cleanliness of the cleaning process. A back-blowing port 6 is added to the air outlet pipe 4 to ensure no residue remains after cleaning. Then, the material inlet section 1 and the material tank flange are automatically locked together by a clamping mechanism 8 and a flange detection sensor 9 to improve discharge efficiency.

[0034] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An automatic locking feed inlet with self-cleaning function, comprising: The inlet section of the metal powder discharge or inlet valve is connected to the inlet or outlet valve of the metal powder processing equipment. An air inlet nozzle and a gas-material outlet are provided on the inlet section. The air inlet nozzle is connected to an air source via an air inlet pipe, and the gas-material outlet is connected to a vacuum pump system via an air outlet pipe. Gas from the air source cleans the inlet section through the air inlet nozzle. The vacuum pump system is used to evacuate the inlet section. The gas-material outlet is used to discharge gas mixed with metal impurities. The inlet section has a sloping inner wall, with two symmetrically arranged air inlet nozzles and the gas-material outlet both located on the sloping surface.

2. The automatic locking feed inlet with self-cleaning function according to claim 1, characterized in that, The cross-section of the raised ramp surface is a cone shape with two inclined surfaces, and the air inlet nozzle and the air outlet are located at the tip of the cone-shaped ramp surface.

3. The automatic locking feed inlet with self-cleaning function according to claim 1, characterized in that, Two sets of six air inlet nozzles are symmetrically arranged on the inner wall of the feed inlet section.

4. The automatic locking feed inlet with self-cleaning function according to claim 1, characterized in that, A protective cover is provided on the outer wall of the feed inlet section. The protective cover is used to seal and surround the air inlet pipe that is connected to the air inlet nozzle and the photoelectric sensor.

5. The automatic locking feed inlet with self-cleaning function according to claim 1, characterized in that, The gas discharge outlet and the air inlet nozzle are arranged perpendicularly.

6. The automatic locking feed inlet with self-cleaning function according to claim 1, characterized in that, A gas outlet sealing valve is installed on the gas outlet pipe connected to the gas outlet. A backflush port is provided on the pipeline between one end of the gas outlet and the gas outlet sealing valve. The backflush port is used to discharge the waste material remaining in the pipeline between one end of the gas outlet and the gas outlet sealing valve.

7. The automatic locking feed inlet with self-cleaning function according to claim 1, characterized in that, It also includes a clamping device for quickly clamping the docking flange at the feed port section. The clamping device consists of at least one symmetrically arranged clamping mechanism and a docking flange detection sensor. The clamping mechanism includes: a cylinder and / or a hydraulic cylinder, a bearing seat fixedly connected to the piston rod end of the cylinder and / or hydraulic cylinder, a push rod hinged to the bearing seat, and a locking hook rod hinged to the push rod. One end of the locking hook rod is hinged to the feed port section near the cylinder and / or hydraulic cylinder, and the middle position of the locking hook rod is hinged to the push rod. The locking end of the locking hook rod clamps the docking flange under the action of the push rod. The docking flange detection sensor is used to detect the position of the docking flange and control the opening and closing of the cylinder and / or hydraulic cylinder.

8. The automatic locking feed inlet with self-cleaning function according to claim 7, characterized in that, An annular gasket groove is provided on the end face where the feed port section connects to the docking flange. A buffer washer is provided in the gasket groove. An installation tension groove is provided on the buffer washer. A tensioning steel wire is fitted in the tension groove. A sealing corrugated groove is provided on the inner wall of the annular gasket groove. The soft buffer washer is squeezed into the sealing corrugated groove for sealing.

9. An automatic locking feed inlet with self-cleaning function according to claim 7, characterized in that, After the locking hook rod of the clamping device clamps the connecting flange, the end of the push rod located on the bearing seat is lower than the end of the push rod located on the locking hook rod, so that the locking hook rod of the clamping mechanism self-locks after clamping the connecting flange.

10. An automatic locking feed inlet with self-cleaning function according to claim 7, characterized in that, The flange detection sensor is a photoelectric sensor, which is installed on the outer wall of the feed inlet section through a photoelectric switch protective cover.

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