Plasma rotating electrode atomization residual material head recovery device and powder making device

Abstract

The invention relates to a plasma rotating electrode atomization residual material head recycling device and a powder making device. The device comprises a material receiving mechanism and a transferring mechanism which are arranged at intervals in the vertical direction, the material receiving mechanism comprises a shell, the front end of the shell is provided with a butt joint opening in butt joint with an atomizing chamber, the rear end of the shell is provided with an openable hatch cover, a linear rail with the front portion higher than the rear portion is arranged in the shell, and a material receiving trolley is slidably arranged on the linear rail; an opening is formed in the upper end of the material receiving trolley, a sealing plate is arranged at the front end of the material receiving trolley, an openable baffle is arranged at the rear end of the material receiving trolley, the sealing plate blocks the butt joint opening, a pushing air cylinder is arranged on the cabin cover, the front end of the pushing air cylinder abuts against the material receiving trolley, and the transferring mechanism comprises a transferring track and a transferring trolley arranged on the transferring track and in butt joint with the rear end of the shell. After material receiving is finished, the air cylinder rod moves backwards, the material receiving trolley can reset under the action of gravity, extra driving force and a transmission structure are not needed in the resetting process, action is simple and reliable, the fault rate is low, the transfer trolley is in butt joint with the rear end of the shell, manual sorting is not needed, and efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal 3D printing, and in particular to a plasma rotating electrode atomization residual material recovery device and a powder making device. Background Art

[0002] In the field of metal 3D printing, metal powder is a fundamental material, so efficient powder-making equipment is of great significance for improving production efficiency. Producing spherical metal powder using plasma rotating electrode atomization powder-making equipment is currently one of the most important methods. Its basic operating principle is that the transmission chamber drives the electrode to rotate at high speed while feeding it at a constant speed toward the plasma torch. The high-temperature arc flame generated by the end of the plasma torch melts the end of the electrode. The molten metal droplets are dispersed into countless fine droplets under the centrifugal force of the high-speed rotation of the electrode. During the high-speed flight in the atomization chamber, they rapidly cool to form metal powder. As the electrode continues to feed and melt, its length gradually shortens. Due to the internal limit of the transmission chamber, when the electrode shortens to a certain extent, it can no longer be fed and melted, and a fixed-length slug is formed.

[0003] After the material head is recovered by the material head recovery device inside the atomization chamber, the loading mechanism inside the transmission chamber automatically replaces the new electrode for melting and atomization of the next electrode.

[0004] like Figure 1 As shown, a conventional scrap recovery device includes a mounting frame 1, with a flap 2 disposed at its front end. The lower end of the flap 2 is rotatably mounted on the mounting frame 1 via a rotating shaft 4. Specifically, a drive motor 3 is disposed at the lower end of the flap 2, which is mounted on the mounting frame 1 via a motor mount 5. The lower end of the flap 2 is fixedly mounted on the rotating shaft 4 of the drive motor 3, and the drive motor 3 drives the flap 2 to flip.

[0005] When the slugs need to be collected, the upper end of the flap 2 flips outward to the atomization chamber 9. The slugs fall in the direction of the arrow in the figure, are caught by the flap 2, and then slide down to the docking collection chamber 1001 at the bottom for collection. After the collection is completed, the flap 2 flips back out of the atomization chamber 9 and into the mounting frame 1. When a certain amount of slugs have been collected, the staff opens the rear hatch 1002 and manually sorts the slugs in the collection chamber 1001 and collects them on the transfer cart for transportation.

[0006] While the aforementioned scrap recovery device can recover scrap, the flap 2 is connected to the drive motor 3, which is powered by an external power source. This results in a complex transmission chain and a high failure rate during operation. If the scrap recovery device fails, the machine must be shut down to dismantle the mounting bracket for troubleshooting, and production cannot continue. Furthermore, the scrap in the bottom collection chamber 1001 must be manually sorted and transported to a transfer cart, resulting in low recovery efficiency and a significant impact on production efficiency. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a plasma rotating electrode atomization residual material head recovery device and a powder making device, which is provided with a linear track which is higher in the front and lower in the back. After the material is received, the cylinder rod moves backward, and the material receiving trolley can slide obliquely downward along the linear track under the action of gravity to reset. The reset process does not require additional driving force and transmission structure, the action is simple and reliable, and the failure rate is low. The transfer trolley is docked with the rear end of the shell, and manual sorting is not required, thereby improving efficiency.

[0008] In response to the above technical problems, the technical solution provided by the present invention is a plasma rotating electrode atomization residual material head recovery device, comprising a material receiving mechanism and a transfer mechanism arranged at vertical intervals, the material receiving mechanism comprising a shell extending in the front-to-back direction, the front end of the shell being provided with a docking port for docking with the atomization chamber, the rear end of the shell being provided with an openable hatch, a linear track with a higher front and a lower rear end being provided in the shell, a material receiving trolley being slidably provided on the linear track, the upper end of the material receiving trolley being open, a sealing plate being provided at the front end, and an openable baffle being provided at the rear end, the sealing plate being used to block the docking port, a pushing cylinder being provided on the hatch, the front end of the pushing cylinder being deep into the interior of the shell and abutting against the rear end of the material receiving trolley, the transfer mechanism comprising a transfer track, a transfer trolley for docking with the rear end of the shell being slidably provided on the transfer track.

[0009] Furthermore, the pushing cylinder includes a cylinder body and a cylinder rod, the cylinder body is fixedly arranged at the rear end of the hatch cover, and the cylinder rod extends into the shell and abuts against the rear end of the material receiving trolley.

[0010] Furthermore, a ball head structure is provided at the front end of the cylinder rod, and the ball head structure abuts against the rear end of the material receiving trolley.

[0011] Furthermore, the thrust cylinder is arranged at the vertical midpoint of the hatch cover, the inner side surface of the hatch cover is a spherical surface concave outward, and the length of the cylinder rod extending into the shell in the retracted state is adapted to the maximum depth of the spherical surface in the front-to-back direction.

[0012] Furthermore, the baffle is hingedly connected to the side wall of the material receiving trolley.

[0013] Furthermore, the hatch cover and the shell are hingedly connected.

[0014] Furthermore, the sealing plate is arranged at the front side of the docking port, and the size of the sealing plate is larger than the size of the docking port.

[0015] Furthermore, a plurality of support frames are arranged at intervals along the front-to-back direction at the bottom of the inner cavity of the shell, and the heights of the support frames decrease from front to back, and the linear track support is fixed on the plurality of support frames.

[0016] Furthermore, vacuum ports are provided on the left and right sides of the shell.

[0017] In response to the above technical problems, the present invention also provides a technical solution, which is a plasma rotating electrode atomizing powder making device, comprising an atomizing chamber, wherein a plasma torch and a transmission chamber are respectively provided on the front and rear sides of the upper part of the atomizing chamber, an electrode extending into the atomizing chamber is provided on the transmission chamber, and a material head recovery device is provided on the lower rear side of the atomizing chamber, wherein the material head recovery device comprises a material receiving mechanism and a transfer mechanism arranged at intervals along the vertical direction, wherein the material receiving mechanism comprises a shell extending in the front and rear directions, wherein a docking port for docking with the atomizing chamber is provided at the front end of the shell, An openable hatch is provided at the rear end of the shell, and a linear track with a higher front and a lower rear is provided in the shell, and a material receiving trolley is slidably provided on the linear track. The upper end of the material receiving trolley is open, a sealing plate is provided at the front end, and an openable baffle is provided at the rear end. The sealing plate is used to seal the docking port, and a pushing cylinder is provided on the hatch, and the front end of the pushing cylinder penetrates into the interior of the shell and abuts against the rear end of the material receiving trolley. The transfer mechanism includes a transfer track, and a transfer trolley for docking with the rear end of the shell is slidably provided on the transfer track.

[0018] Furthermore, the pushing cylinder includes a cylinder body and a cylinder rod, the cylinder body is fixedly arranged at the rear end of the hatch cover, and the cylinder rod extends into the shell and abuts against the rear end of the material receiving trolley.

[0019] Furthermore, a ball head structure is provided at the front end of the cylinder rod, and the ball head structure abuts against the rear end of the material receiving trolley.

[0020] Furthermore, the thrust cylinder is arranged at the vertical midpoint of the hatch cover, the inner side surface of the hatch cover is a spherical surface concave outward, and the length of the cylinder rod extending into the shell in the retracted state is adapted to the maximum depth of the spherical surface in the front-to-back direction.

[0021] Furthermore, the baffle is hingedly connected to the side wall of the material receiving trolley.

[0022] Furthermore, the hatch cover and the shell are hingedly connected.

[0023] Furthermore, the sealing plate is arranged at the front side of the docking port, and the size of the sealing plate is larger than the size of the docking port.

[0024] Furthermore, a plurality of support frames are arranged at intervals along the front-to-back direction at the bottom of the inner cavity of the shell, and the heights of the support frames decrease from front to back, and the linear track support is fixed on the plurality of support frames.

[0025] Furthermore, vacuum ports are provided on the left and right sides of the shell.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) A linear track with a high front and a low back is set. When the electrode is melting and rotating at high speed for atomization, the material receiving trolley is located at the lowest point of the linear track under the action of gravity, and the sealing plate at the front end of the material receiving trolley is pressed against the inner wall of the atomizing chamber under the action of gravity along the linear slide rail, blocking the docking port at the front end of the shell, separating the shell from the atomizing chamber, preventing metal powder from splashing into the shell, causing powder waste and pollution, and preventing powder from causing structural failure of the material head recovery device.

[0028] When the material head needs to be recovered, the push cylinder is used as a power device to push the material receiving trolley into the atomizing chamber to catch the falling material head. After the material is received, the air intake direction of the push cylinder is switched, the cylinder rod automatically retracts, and the material receiving trolley automatically slides along the linear track into the shell under the action of gravity to reset. During the reset process, no additional driving force and transmission mechanism are required, the operation is simple and reliable, and the failure rate is low. At the same time, even if the push cylinder fails and the air intake direction cannot be switched, it is only necessary to cut off the air supply. Under the reverse push of the material receiving trolley, the cylinder rod can also be retracted, causing the material receiving trolley to fall back into the shell. The material receiving trolley will not stay in the atomizing chamber and affect the subsequent work of the powder making device. At the same time, the push cylinder is set at the rear end of the shell. In the event of a failure, it can be repaired and replaced in time without stopping the machine, which will not affect the production of the furnace, thus ensuring the orderly and continuous production.

[0029] The material receiving mechanism and the transfer mechanism are arranged at intervals along the vertical direction, and the transfer trolley is connected to the rear end of the shell. The entire material receiving trolley is arranged with the front higher and the back lower, and a baffle is provided at the rear end of the material receiving trolley. After a certain amount of material heads are collected in the material receiving trolley, the hatch and the baffle are opened, and the collected material heads can fall into the transfer trolley under the action of gravity, without the need for manual sorting one by one to the transfer trolley, thereby improving the recycling efficiency and the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional schematic diagram of a material head recovery device in the prior art.

[0031] Figure 2 This is a front view of a plasma rotating electrode atomization residual material head recovery device in Example 1 of the present invention.

[0032] Figure 3 This is a right view of a plasma rotating electrode atomization residual material head recovery device in Example 1 of the present invention.

[0033] Figure 4 It is a top view of a plasma rotating electrode atomization residual material head recovery device in Example 1 of the present invention.

[0034] Figure 5 It is a cross-sectional schematic diagram of a plasma rotating electrode atomizing powder making device in Example 1 of the present invention in the atomizing state of the material head.

[0035] Figure 6 It is a cross-sectional schematic diagram of a plasma rotating electrode atomizing powder making device in Example 1 of the present invention in a material head recovery state.

[0036] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0037] Figure 8 A schematic cross-sectional view of a plasma rotating electrode atomization powder making device in a material head transporting state in Example 1 of the present invention.

[0038] In the figure: 1. Mounting frame; 1001. Collection cabin; 1002. Cabin door; 2. Flap; 3. Drive motor; 4. Rotating shaft; 5. Motor seat; 6. Transmission chamber; 7. Electrode; 8. Plasma torch; 9. Atomization chamber; 10. Shell; 101. Docking port; 102. Hatch; 103. Vacuum extraction port; 104. Support frame; 105. Articulated shaft; 11. Material receiving mechanism; 110. Linear rail; 111. Material receiving trolley; 112. Closing plate; 113. Baffle; 114. Sliding block; 12. Transfer mechanism; 121. Transfer trolley; 122. Transfer track; 13. Push cylinder; 131. Cylinder body; 132. Cylinder rod; 133. Dynamic sealing structure; 134. Ball head structure; 14. Mounting bracket; 15. Material head. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0041] In this embodiment, if Figure 5 As shown, the spacing direction between the plasma torch 8 and the transmission chamber 6 is the front-to-back direction, and the plasma torch 8 is located at the front side of the transmission chamber 6. Figure 3 As shown, the spacing direction between the vacuum port 103 and the hinge shaft 105 is the left-right direction.

[0042] refer to Figure 2 Figure 8 A plasma rotating electrode atomization powder making device (hereinafter referred to as the powder making device) of the present invention includes an atomization chamber 9, and a plasma torch 8 and a transmission chamber 6 are respectively provided on the front and rear sides of the upper part of the atomization chamber 9. The transmission chamber 6 is provided with an electrode 7 extending into the atomization chamber 9, and a plasma rotating electrode 7 atomization residual material head recovery device is provided on the lower rear side of the atomization chamber 9.

[0043] Specifically, during actual use, the transmission chamber 6 drives the electrode 7 to rotate at high speed while feeding it at a uniform speed in the direction of the plasma torch 8. The high-temperature arc flame generated at the end of the plasma torch 8 melts the end of the electrode 7. The molten metal droplets are dispersed into countless fine droplets under the centrifugal force of the high-speed rotation of the electrode 7, and quickly cool during the high-speed flight in the atomization chamber 9 to form metal powder. As the electrode 7 is continuously fed and melted, the length of the electrode 7 gradually shortens. Due to the internal limit of the transmission chamber 6, the electrode 7 cannot continue to be fed and melted when it shortens to a certain extent, and a fixed-length slug 15 is formed. The slug 15 falls and is recycled by the recovery device.

[0044] Specifically, in this embodiment, a plasma rotating electrode atomization residual material recovery device (hereinafter referred to as the recovery device) of the present invention includes a material receiving mechanism 11 and a transfer mechanism 12 arranged in a vertically spaced relationship. The material receiving mechanism 11 includes a housing 10 extending in a front-to-back direction. The lower end of the housing 10 is fixed to the ground via a mounting bracket 14. The front end of the housing 10 is provided with a docking port 101. The atomization chamber 9 has an adapted opening at a position corresponding to the docking port 101. The docking port 101 is docked and mounted on the opening, allowing the interior of the housing 10 to communicate with the interior of the atomization chamber 9.

[0045] An openable hatch 102 is provided at the rear end of the shell 10, and a linear track 110 with a higher front and a lower rear end is provided inside the shell 10, and the front and rear ends of the linear track 110 extend to the front and rear ends of the shell 10 respectively. A material receiving trolley 111 is slidably provided on the linear track 110, and the upper end of the material receiving trolley 111 is open, the front end is provided with a sealing plate 112, and the rear end is provided with an openable baffle 113. The bottom of the inner cavity of the material receiving trolley 111 is parallel to the linear track 110. The sealing plate 112 is used to block the docking port 101. A push cylinder 13 is provided on the hatch 102 of the shell 10, and the front end of the push cylinder 13 penetrates into the interior of the shell 10 and abuts against the rear end of the material receiving trolley 111, driving the material receiving trolley 111 to slide on the linear track 110. The transfer mechanism 12 includes a transfer track 122, and a transfer trolley 121 for docking with the rear end of the shell 10 is slidably provided on the transfer track 122.

[0046] With this arrangement, by utilizing the linear track 110 which is higher in the front and lower in the back, when the electrode 7 is melting and atomizing in high-speed rotation, the material receiving trolley 111 is located at the lowest point of the linear track 110 under the action of gravity, and the sealing plate 112 at the front end of the material receiving trolley 111 is tightly attached to the inner wall of the atomization chamber 9 under the action of the force of gravity along the linear slide rail, blocking the docking port 101 at the front end of the shell 10, separating the shell 10 from the atomization chamber 9, preventing metal powder from splashing into the interior of the shell 10, causing powder waste and pollution, and at the same time preventing powder from causing structural failure of the material head 15 recovery device.

[0047] When the material head 15 needs to be recovered, the pushing cylinder 13 is used as a power device to push the material receiving trolley 111 into the atomizing chamber 9 to receive the falling material head 15.

[0048] After the material is received, the push cylinder 13 is provided with an electromagnetic reversing valve (not shown in the figure). The electromagnetic reversing valve is used to switch the air supply direction of the push cylinder. The air source drives the cylinder rod 132 to automatically retract. The material receiving trolley 111 automatically slides along the linear track 110 into the housing under the action of gravity to reset. The retraction speed of the cylinder rod 132 is faster than the return speed of the material receiving trolley, and the cylinder rod 132 is directly separated from the material receiving trolley 111. Therefore, no additional driving force or transmission mechanism is required during the reset process, the operation is simple and reliable, and the failure rate is low.

[0049] At the same time, the push cylinder 13 is also provided with a manual reversing valve, which can be used to switch the air intake direction when the electromagnetic reversing valve fails. Furthermore, even if the push cylinder 13 fails and cannot switch the air intake direction, it only needs to cut off the air source, and the material receiving trolley 111 will push the cylinder rod 131 backward under the action of gravity, or the cylinder rod 132 can be retracted, so that the material receiving trolley 111 falls back into the shell 10. It is ensured that the material receiving trolley 111 will not stay in the atomizing chamber 9 and affect the subsequent work of the powder making device. At the same time, the push cylinder 13 is arranged at the rear end of the shell 10, outside the shell 10, and can be repaired and replaced in time when a failure occurs, without stopping the machine, and will not affect the production of the furnace, thereby ensuring the orderly progress and continuity of production.

[0050] The material receiving mechanism 11 and the transfer mechanism 12 are arranged at intervals along the vertical direction, and the transfer trolley 121 is docked with the rear end of the shell 10. The entire material receiving trolley 111 is arranged with the front high and the back low, and a baffle 113 is provided at the rear end of the material receiving trolley 111. After a certain number of material heads 15 are collected in the material receiving trolley 111, the hatch 102 and the baffle 113 are opened, and the collected material heads 15 can fall into the transfer trolley 121 under the action of gravity, without the need for manual sorting one by one to the transfer trolley 121. When the transfer trolley 121 slides along the transfer track 122 to the clear area above, it can be lifted away as a whole by the factory crane, thereby improving the recycling efficiency and the overall production efficiency.

[0051] Preferably, in this embodiment, Figure 5 、 6 As shown, the sealing plate 112 is provided at the front side of the docking port 101, and the size of the sealing plate 112 is larger than that of the docking port 101. Specifically, the opening of the atomizing chamber 9 corresponding to the docking port 101 is a stepped structure with a larger front and a smaller back. The front opening of the stepped structure is adapted to the sealing plate 112, and the back opening is adapted to the docking port 101. When atomizing, the sealing plate 112 can be stuck in the front opening of the stepped structure and aligned with the inner wall of the atomizing chamber 9, which improves the sealing effect on the one hand and avoids interfering with atomization on the other.

[0052] Preferably, in this embodiment, Figure 2 、 5 As shown, the pushing cylinder 13 extends in the front-to-back direction, and the pushing cylinder 13 includes a cylinder body 131 and a cylinder rod 132, wherein the cylinder body 131 is fixedly arranged at the rear end of the hatch 102, and the cylinder rod 132 extends into the shell 10 and abuts against the rear end of the material receiving trolley 111.

[0053] Specifically, a dynamic sealing structure 133 is provided between the rear end of the hatch cover 102 and the cylinder body 131. A matching perforation (not shown) is provided on the hatch cover 102 at a position corresponding to the cylinder rod 132. The dynamic sealing structure 133 connects the hatch cover 102 and the cylinder body 131, and the front end of the cylinder rod 132 extends through the dynamic sealing structure 133 and the perforation into the interior of the housing 10. The dynamic sealing structure 133 ensures sealing while allowing the cylinder rod 132 to move in the forward and backward directions. This ensures that the movement of the cylinder rod 132 does not disrupt the vacuum or inert gas atmosphere within the housing 10 and the atomization chamber 9.

[0054] In this embodiment, the dynamic seal structure 133 is a combined seal formed by a lip seal and a star seal. That is, a lip seal ring, a star seal ring, an O-ring, etc. are combined to form a dynamic seal, which seals the moving parts and ensures the vacuum state of the atomization chamber 9. The dynamic seal structure 133 is a conventional structure in the art and is common knowledge known to those skilled in the art, and will not be described in detail here.

[0055] In this way, the cylinder body 131 is arranged outside the shell 10. On the one hand, it can save the internal space of the shell 10 so that the material receiving trolley 111 can be moved to the rear end of the shell 10 as much as possible. On the other hand, it is convenient for the maintenance of the push cylinder 13 and at the same time reduces the contamination of the push cylinder 13 by metal powder.

[0056] Preferably, in this embodiment, Figure 6 、 7 As shown, a ball head structure 134 is provided at the front end of the cylinder rod 132, and the ball head structure 134 is fixedly installed at the front end of the cylinder rod 132 by a bolt assembly. The front end of the ball head structure 134 is a hemispherical structure protruding outward, and the ball head structure 134 abuts against the middle position of the baffle 113 at the rear end of the material receiving trolley 111.

[0057] The stroke of the push cylinder 13 extends in the front-to-back direction, and the material receiving trolley 111 moves obliquely. When receiving the material, the push cylinder 13 pushes the material receiving trolley 111 to move. There is a longitudinal component of force between the front end of the cylinder rod 132 and the baffle 113, which generates longitudinal deflection and causes friction. The ball head structure 134 can reduce the friction between the cylinder rod 132 and the rear end of the material receiving trolley 111, avoiding movement failure and ensuring reliable and smooth operation. Of course, in other embodiments, a pulley can be rotatably provided at the front end of the cylinder rod 132 to reduce the friction between the cylinder rod 132 and the rear end of the material receiving trolley 111.

[0058] Preferably, in this embodiment, Figure 5 As shown, the push cylinder 13 is arranged at the vertical midpoint of the hatch cover 102. The inner side surface of the hatch cover 102 is a spherical surface that is concave outward. When the cylinder rod 132 is in the retracted state, it extends to the length of the shell 10 and is adapted to the maximum depth of the spherical surface in the front-to-back direction.

[0059] Specifically, the cross section of the hatch 102 is arc-shaped. During atomization, the end plate of the receiving trolley 111 is at the front end of the cylinder cover, and the cylinder rod 132 is entirely in the inner cavity of the hatch 102. This arrangement ensures that when the transfer head 15 needs to open the hatch 102, the cylinder rod 132 will not interfere with the housing 10 and other components.

[0060] In other embodiments, when actual usage requirements are met, the pushing cylinder 13 can also be arranged inside the shell 10. At this time, the cylinder body 131 is fixedly installed on the front side of the cabin door 1002. Inside the shell 10, a material receiving chute that is high in front and low in the back and extends obliquely downward is set between the lowest point of the material receiving trolley 111 and the cabin door 1002. The front end of the material receiving chute docks with the lower end of the material receiving trolley 111, and the rear end extends to the cabin door 1002. After opening the baffle 113, the material head 15 slides out of the rear end of the shell 10 along the material receiving chute and falls into the transfer trolley 121.

[0061] Specifically, in this embodiment, Figure 1 、 3 As shown, a vacuum port 103 is provided on the left side of the housing 10. This port can be connected to a vacuum pump assembly to evacuate the atomization chamber 9 and the interior of the housing 10 to prevent oxidation of the powder at high temperatures. The hatch 102 is hingedly connected to the housing 10, with its hinge shaft 105 arranged vertically and located on the right side of the rear end of the housing 10. A baffle 113 is hingedly connected to the side wall of the material receiving trolley 111, and its hinge shaft is located at the top of the material receiving trolley 111.

[0062] When transfer is required, the hatch 102 is flipped to the right to open, and the pushing cylinder 13 is simultaneously driven to disengage, and the baffle 113 is flipped upward, and the material head 15 in the receiving trolley 111 falls into the transfer trolley 121, and the transfer trolley 121 is transported to the designated location using the transfer track 122 to complete the transfer and recovery.

[0063] Working process of this application:

[0064] 1. If Figure 5 As shown, when the electrode 7 is melting and atomizing in high-speed rotation, the material receiving trolley 111 is located at the low point of the straight track 110 under the action of gravity. At this time, the sealing plate 112 at the front end of the material receiving trolley 111 is tightly attached to the inner wall of the atomization chamber 9 under the action of gravity along the inclined slide rail, separating the shell 10 and the atomization chamber 9, preventing metal powder from splashing into the inside of the shell 10, causing powder waste and pollution, and at the same time preventing powder from causing structural failures such as bearings and dynamic seals in the material head 15 collection device.

[0065] 2. If Figure 6 As shown, when one electrode 7 is atomized, the pushing cylinder 13 receives the signal and starts working to push the material receiving trolley 111 upward along the straight track 110. The material receiving trolley 111 and the sealing plate 112 rise along the inclined surface under the action of the thrust and enter the inside of the atomization chamber 9. The pushing structure inside the transmission chamber 6 (not shown in the figure) pushes the participating material head 15 into the atomization chamber 9. The material head 15 falls downward under the action of gravity, and the front end of the material receiving trolley 111 catches the falling material head 15.

[0066] 3. After the material head 15 enters the material receiving trolley 111, it rolls to the end of the trolley under the action of the inclined surface at the bottom of its inner cavity.

[0067] 4. After the material is received, the push cylinder 13 receives a signal and switches the air intake direction of the push cylinder 13, and the cylinder rod 132 retracts. The material receiving trolley 111 is reset to the position along the straight track 110 under the action of gravity. Figure 5 State. Now complete the collection work of a material head 15.

[0068] 5. The transmission chamber 6 automatically clamps a new electrode 7 and starts the rotation and atomization of the next electrode 7.

[0069] 6. Repeat steps 1 to 5. The material heads 15 inside the receiving trolley 111 continue to accumulate. When the number of material heads 15 reaches the designed upper limit, the entire pulverizing device is evacuated (during operation, the atomizing chamber 9, transmission chamber 6, and housing 10 are in a vacuum state to prevent oxidation of the material at high temperatures. The vacuum needs to be broken after the equipment is shut down), completing the atomization of a batch of electrodes 7. At this time, the hinged hatch 102 at the end of the housing 10 is opened.

[0070] 7. If Figure 8As shown, the hinged baffle 113 at the rear of the material receiving trolley 111 is opened, and the accumulated material heads 15 roll into the material head 15 transfer trolley 121 under the action of gravity.

[0071] 8. The material head 15 transfer trolley 121 moves along the guide rail to the clear area and is transported away as a whole using an overhead crane or the like.

[0072] Example 2: This example provides a different recovery device. Unlike Example 1, when actual use needs are met, a vertically extending slide groove can be set on the rear side of the baffle, and a slider is slidably set in the slide groove. An inwardly concave arc groove is set on the side of the slider facing the push cylinder, and the ball head structure at the front end of the cylinder rod is embedded in the arc groove. The arc groove allows the ball head structure to rotate therein. When the cylinder rod and the baffle cooperate, friction is further reduced, and the stability of the push screw movement is improved.

[0073] An embodiment of a plasma rotating electrode atomization residual material head recovery device of the present invention has the same structure as the plasma rotating electrode atomization residual material head recovery device of the plasma rotating electrode atomization powder making device in the above-mentioned embodiment, and will not be repeated here.

[0074] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

[0075] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0076] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A plasma rotating electrode atomization residual material recovery device, characterized in that: The invention comprises a material receiving mechanism and a transfer mechanism arranged at vertical intervals, the material receiving mechanism comprises a shell extending in the front-to-back direction, the front end of the shell is provided with a docking port for docking with the atomization chamber, the rear end of the shell is provided with an openable hatch cover, a linear track with a higher front and a lower rear end is provided in the shell, a material receiving trolley is slidably provided on the linear track, the upper end of the material receiving trolley is open, a sealing plate is provided at the front end, and an openable baffle is provided at the rear end, the sealing plate is used to block the docking port, a pushing cylinder is provided on the hatch cover, the front end of the pushing cylinder penetrates into the interior of the shell and abuts against the rear end of the material receiving trolley, the transfer mechanism comprises a transfer track, a transfer trolley for docking with the rear end of the shell is slidably provided on the transfer track.

2. The plasma rotating electrode atomization residual material recovery device according to claim 1, characterized in that: The pushing cylinder includes a cylinder body and a cylinder rod. The cylinder body is fixedly arranged at the rear end of the hatch cover, and the cylinder rod extends into the shell and abuts against the rear end of the material receiving trolley.

3. The plasma rotating electrode atomization residual material recovery device according to claim 2, characterized in that: The front end of the cylinder rod is provided with a ball head structure, and the ball head structure abuts against the rear end of the material receiving trolley.

4. The plasma rotating electrode atomization residual material recovery device according to claim 2, characterized in that: The push cylinder is arranged at the vertical midpoint of the hatch cover, the inner side surface of the hatch cover is a spherical surface concave outward, and the length of the cylinder rod extending into the shell in the retracted state is adapted to the maximum depth of the spherical surface in the front-to-back direction.

5. The plasma rotating electrode atomization residual material recovery device according to claim 1, characterized in that: The baffle is hingedly connected to the side wall of the material receiving trolley.

6. The plasma rotating electrode atomization residual material recovery device according to claim 1, characterized in that: The hatch cover is hingedly connected to the shell.

7. The plasma rotating electrode atomization residual material recovery device according to claim 1, characterized in that: The sealing plate is arranged at the front side of the docking port, and the size of the sealing plate is larger than the size of the docking port.

8. The plasma rotating electrode atomization residual material recovery device according to claim 1, characterized in that: A plurality of support frames are arranged at intervals along the front-to-back direction at the bottom of the inner cavity of the shell, and the heights of the support frames decrease sequentially from the front to the back, and the linear track support is fixed on the plurality of support frames.

9. The plasma rotating electrode atomization residual material recovery device according to claim 1, characterized in that: Vacuum ports are provided on the left and right sides of the shell.

10. A plasma rotating electrode atomization powder making device, characterized in that: It includes an atomization chamber, wherein a plasma torch and a transmission chamber are respectively provided on the front and rear sides of the upper part of the atomization chamber, an electrode extending into the atomization chamber is provided on the transmission chamber, and a material head recovery device is provided on the lower rear side of the atomization chamber. The material head recovery device is the plasma rotating electrode atomization residual material head recovery device described in any one of claims 1 to 9 above.

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