Continuous feeding mechanism of electrode induction melting gas atomization pulverizing furnace

Abstract

The utility model relates to a continuous feeding mechanism of an electrode induction melting gas atomization powder making furnace. The continuous feeding mechanism comprises a material hanging disc, a collecting box, a mounting plate, a guiding material pushing assembly and a feeding assembly. The middle of the material hanging disc is provided with a rod replacing groove which is through in the radial direction. The collecting box is arranged on the rear side of the hanging disc and corresponds to the rear side of the rod replacing groove. The feeding assembly is arranged above the front side of the hanging disc; the guiding and pushing assembly is arranged at the lower end of the rear side of the feeding assembly and corresponds to the front side of the rod replacing groove. And the mounting plate is arranged at the front end of the feeding assembly. According to the utility model, a plurality of alloy bars can be stored in one production process, the bars can be automatically supplied, tailings can be automatically taken, and the continuous feeding of the titanium bars and the continuous taking down of the bar tails are realized, so that the efficiency of producing metal powder by the electrode induction melting gas atomization pulverizing furnace is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of metal powder preparation technology, and in particular to a continuous feeding mechanism for an electrode induction melting gas atomization powder making furnace. Background Technology

[0002] The electrode induction melting gas atomization powder making furnace uses a high-frequency induction copper coil to heat the tip of the alloy rod. After the alloy rod melts, the droplets pass through the spray plate and are broken up multiple times by high-purity argon gas with a flow rate of 500m3 / h-2000m3 / h to form metal microdroplets. The droplets are then rapidly cooled and spheroidized in the gas flow to form metal powder with a particle size of 5μm-150μm.

[0003] Currently, domestic electrode induction melting gas atomization powder making equipment all adopt a non-continuous production process. In this process, after a single alloy rod is melted, the melting and atomization operation is stopped, the rod tail is raised to the material changing chamber, the gate valve between the melting chamber and the material changing chamber is closed, and then the material changing chamber door is opened. The alloy rod is manually replaced, and after the material changing chamber door is closed, the material changing chamber is evacuated and filled with argon. After the gate valve is opened, the alloy rod is lowered to ensure that the oxygen and nitrogen content inside the powder making furnace is effectively controlled. This operation process takes about 12 minutes, of which the time for opening the material changing chamber door, replacing the electrode, closing the material changing chamber door, evacuating, and filling with argon is about 10 minutes. The melting and atomization time for a 50*900mm titanium rod is approximately 15 minutes, and currently, the rod replacement operation time accounts for 80% of the melting and atomization time. Therefore, the process of replacing alloy rods is the main factor causing a decrease in the production efficiency of electrode induction melting gas atomization powder making equipment. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace, which enables continuous feeding of titanium rods and continuous removal of the rod tail, thereby improving the efficiency of the electrode induction melting gas atomization pulverizing furnace in producing metal powder.

[0005] The technical solution adopted in this utility model is as follows:

[0006] The present invention discloses a continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace, comprising a hanging tray, a collecting box, a mounting plate, a guiding and pushing assembly, and a feeding assembly; the hanging tray has a radially penetrating rod changing groove in the middle; the collecting box is located on the rear side of the hanging tray and corresponds to the rear side of the rod changing groove; the feeding assembly is located on the upper front side of the hanging tray; the guiding and pushing assembly is located on the lower rear side of the feeding assembly and corresponds to the front side of the rod changing groove; the mounting plate is located on the front end of the feeding assembly.

[0007] Furthermore, the feeding assembly includes a top plate, a downward hydraulic rod, a horizontal plate, a clamping plate, an electromagnet, triangular blocks, a non-locking push button switch, a convex plate, and a U-shaped plate; the U-shaped plate is horizontally arranged with its opening side facing rearward, and its two ends on the opening side are connected to the guide and pushing assembly; the horizontal plate is arranged parallel above the U-shaped plate; the clamping plate is a metal plate that is slidably connected to the bottom of the horizontal plate; the electromagnet is fixed to the middle of the inner wall of the rear end of the horizontal plate and corresponds to the rear end of the clamping plate; the triangular blocks are evenly distributed on the bottom of the left and right sides of the clamping plate and are symmetrical to each other; the non-locking push button switch is fixed to the middle of the front end face of the horizontal plate; the convex plate is fixed to the middle of the front end of the U-shaped plate and its upper end face is located a certain distance below the non-locking push button switch; the top plate is arranged parallel above the horizontal plate, and its rear bottom is fixedly connected to the middle of the upper end face of the horizontal plate through the downward hydraulic rod; the upper rear end of the mounting plate is fixedly connected to the front end of the top plate; the lower rear end of the mounting plate is fixedly connected to the convex plate.

[0008] Furthermore, a return spring is provided between the rear end of the card plate and the electromagnet.

[0009] Furthermore, the guiding and pushing assembly includes a connecting plate and a horizontal pushing hydraulic rod; the connecting plate is respectively hinged to both ends of the opening side of the U-shaped plate; the horizontal pushing hydraulic rod is respectively set at the rear end of the connecting plate, and its bottom is corresponding to the upper end face of the hanging plate.

[0010] Furthermore, a baffle is provided at the bottom of the hinge joint between the connecting plate and the U-shaped plate; the baffle is fixedly connected to the U-shaped plate.

[0011] Furthermore, a connecting frame is fixedly connected above the material hanging tray for connecting the drive mechanism that drives the material hanging tray to move up and down.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) This utility model can store multiple alloy bars in a single production process, and can automatically feed the bars and remove tail material. Taking the smelting of 50*900mm titanium rods as an example, the current atomization powder production time is 15 minutes, the rod replacement time is about 12 minutes, and the production speed is 7.95 / (27 / 60) = 17.67 kg / h. After adopting this utility model, the rod replacement time is about 2 minutes, the production speed is 7.95 / (17 / 60) = 28.06 kg / h, and the production efficiency is increased by about 58.8%.

[0014] (2) This utility model does not require vacuuming, argon filling, opening and closing the slide gate valve, or opening and closing the material changing chamber door, which greatly reduces the number of times the mechanical pump, Roots pump, material changing chamber door, and slide gate valve are used, and reduces the wear and tear of equipment spare parts; at the same time, it greatly reduces the labor intensity of workers and the risk of being burned by the rods when changing rods.

[0015] (3) This utility model realizes feeding and unloading by pushing the hydraulic rod horizontally, ensuring the independence of the feeding unit and the delivery unit.

[0016] (4) The rod tail produced during the production process of this utility model is connected to the bottom of the new rod after the tooling is removed, and the raw material utilization rate is 100%. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 yes Figure 1 Another structural diagram from another angle;

[0019] Figure 3 This is a schematic diagram showing the positions of the guiding and pushing mechanism, the feeding mechanism, and the mounting plate;

[0020] Figure 4 This is a schematic diagram of the overall structure of the guiding and feeding mechanism;

[0021] Figure 5 It is a structural diagram of an alloy rod, a tooling, a rod tail, and an alloy rod with a tooling and a rod tail.

[0022] The attached figures are labeled as follows: 1-Hanging tray; 101-Connecting frame; 2-Bar changing groove; 3-Collection box; 4-Mounting plate; 5-Guiding and pushing assembly; 51-Connecting plate; 52-Horizontal push hydraulic rod; 53-Baffle; 6-Feeding assembly; 61-Top plate; 62-Downward hydraulic rod; 63-Horizontal plate; 64-Clamping plate; 65-Return spring; 66-Electromagnet; 67-Triangle block; 68-Unlockable push button switch; 69-Protruding plate; 610-U-shaped plate; 7-Bar tail; 8-Tooling; 9-Alloy bar with tooling; 10-Alloy bar; 11-Bar tail with tooling. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] It should be noted that in the description of this utility model, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0025] like Figure 1 As shown, the continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace proposed in this utility model includes a hanging tray 1, a collection box 3, a mounting plate 4, a guiding and pushing assembly 5, and a feeding assembly 6.

[0026] The material hanging tray 1 is provided with a radially penetrating rod changing groove 2 in the middle. The rod changing groove 2 divides the material hanging tray 1 into two parts radially. In this embodiment, a connecting frame 101 is fixedly connected above the upper end face of the two parts of the material hanging tray 1. It is used to connect the driving mechanism that drives the material hanging tray 1 to move up and down. The driving mechanism has an upper limit and a lower limit. The lower limit prevents the material hanging tray 1 from being melted by the copper coil. The upper limit ensures that the bottom end of the horizontal push hydraulic rod 52 is flush with the top of the rod changing groove 2.

[0027] The collection box 3 is located on the rear side of the hanging plate 1 and corresponds to the rear side of the rod changing groove 2. It is used to collect the rod tail 11 with tooling. The collection box 3 is fixed on the inner wall of the protruding part of the pulverizing furnace. A buffer mechanism, such as a sponge pad, can be set inside the collection box 3 to protect the rod tail 11 with tooling that falls into the collection box 3.

[0028] The feeding assembly 6 is located above the front side of the hanging tray 1; the guiding and pushing assembly 5 is located at the lower rear side of the feeding assembly 6 and corresponds to the front side of the bar changing groove 2; the mounting plate 4 is fixedly connected to the front end of the feeding assembly.

[0029] like Figure 2-4As shown, the feeding assembly 6 includes a top plate 61, a downward hydraulic rod 62, a horizontal plate 63, a clamping plate 64, an electromagnet 66, triangular blocks 67, a lockless push-button switch 68, a convex plate 69, and a U-shaped plate 610. The U-shaped plate 610 is horizontally arranged with its opening facing rearward, and its two ends on the opening side are connected to the guide and pusher assembly 5. The horizontal plate 63 is arranged parallel above the U-shaped plate 610, and its bottom surface is set as a groove structure. The clamping plate 64 is a metal plate that is slidably connected in the bottom groove of the horizontal plate 63. The electromagnet 66 is fixed in the middle of the inner wall of the rear end of the horizontal plate 63 and corresponds to the rear end of the clamping plate 64. When the electromagnet 66 is energized, it has a magnetic attraction effect on the clamping plate 64. The triangular blocks 67 are evenly distributed on the bottom of the left and right sides of the clamping plate 64. The components are symmetrical to each other. The top of the triangular block 67 is fixedly connected to the clamping plate 64. The number of triangular blocks 67 is twice that of the alloy rod 9 with tooling. The unlocked push-button switch 68 is fixed to the middle of the front end face of the horizontal plate 63 and connected to the electromagnet 6, used to control the opening of the electromagnet 66. The convex plate 69 is fixed to the middle of the front end of the U-shaped plate 610 and its upper end face is located a certain distance below the unlocked push-button switch 68. When the unlocked push-button switch 68 moves down, it can be squeezed and connected after being blocked by the convex plate 69. The top plate 61 is arranged parallel above the horizontal plate 63, and its rear bottom is fixedly connected to the middle of the upper end face of the horizontal plate 63 through the downward hydraulic rod 62. The upper rear end of the mounting plate 4 is fixedly connected to the front end of the top plate 61. The lower rear end of the mounting plate 4 is fixedly connected to the convex plate 69.

[0030] Initially, the triangular block 67 is located on the upper sides of the tooling 8. When the triangular block 67 moves down with the horizontal plate 63, it does not contact the tooling 8. When the bottom of the triangular block 67 is lower than the top of the tooling 8, the electromagnet 66 is energized, attracting the clamping plate 64 and the triangular block 67 to move backward and contact the side of the tooling 8.

[0031] The U-shaped plate 610 can also have through slots on both sides for the triangular block 67 to pass through downwards, so that the triangular block 67 can not only enter the through slot, but also move laterally within the through slot as the clamping plate 64 moves.

[0032] In this embodiment, a return spring 65 is connected between the rear end of the card plate 64 and the electromagnet 66.

[0033] The guiding and pushing assembly 5 includes a connecting plate 51 and a horizontal pushing hydraulic rod 52. The connecting plate 51 is respectively hinged to both ends of the opening side of the U-shaped plate 610, and the connecting plate 51 is inclined, with one end connected to the U-shaped plate 610 higher than the other end. The horizontal pushing hydraulic rod 52 is respectively connected to the rear end of the connecting plate 51, and the bottom of the two horizontal pushing hydraulic rods 52 corresponds to the upper end faces of both sides of the rod changing groove 2. A baffle 53 is provided at the bottom of the hinge point between the connecting plate 51 and the U-shaped plate 610. The baffle 53 is fixedly connected to the U-shaped plate 610, and the baffle 53 can prevent the connecting plate 51 from deflecting downwards, while the connecting plate 51 is not affected by the baffle 53 when deflecting upwards.

[0034] The working principle of this utility model is as follows: Before use, a T-shaped tooling 8 is made. The top of the tooling 8 is a disc structure that can be locked in the top of the U-shaped groove and the rod changing groove 2 of the U-shaped plate 610. The lower part can pass through the U-shaped groove and the rod changing groove 2. The outer surface of the bottom end of the tooling 8 is threaded and connected to the concave thread at the top of the alloy rod. The length of the alloy rod is usually 900±10mm and the diameter is 50mm.

[0035] A tooling 8 is installed at the top of the alloy rod 10, and a rod tail 7 is installed at the bottom, forming an alloy rod 9 with the tooling. The entire rod is hung in the U-shaped groove of the U-shaped plate 610, which supports the tooling 8. When a new alloy rod needs to be replaced, the horizontal push hydraulic rod 52 is first activated to extend. The horizontal push hydraulic rod 52 extends, and one end of the horizontal push hydraulic rod 52 is pressed against the surface of the hanging tray 1 and moves laterally, pushing the remaining rod tail 11 with the tooling in the rod changing groove 2 into the collection box 3. Then the horizontal push hydraulic rod 52 retracts to its original position, and the downward moving hydraulic rod 62 extends, causing the horizontal plate 63 to move downward. When the horizontal plate 63 moves the unlocked button switch 68 to the convex plate 69, the convex plate 69 blocks the unlocked button switch 68, which is then energized by compression. The downward moving hydraulic rod 62 continues to extend. During this process, the electromagnet 66 is energized and generates magnetism, attracting the clamping plate 64. The triangular block 67 at the bottom of the clamping plate 64 will first approach the alloy rod 9 with the tooling, and then push it backward. After the clamping plate 64 fully compresses the return spring 65, an alloy rod 9 with the tooling will fall off the U-shaped plate 610. The alloy rod 9 with the tooling will slide down the inclined connecting plate 51 and the horizontal push hydraulic rod 52 into the rod changing groove 2 on the surface of the hanging plate 1. Then the horizontal push hydraulic rod 52 will extend, pushing the alloy rod 9 with the tooling to the center of the rod changing groove 2. At this time, the hanging plate 1 will move down to work, while the horizontal push hydraulic rod 52 and the downward moving hydraulic rod 62 will retract, driving the horizontal plate 63 to move upward, so that the triangular block 67 moves upward and completely above the tooling 8. At this time, the unlocked button switch 68 is no longer squeezed by the protruding plate 69, the electromagnet 66 is de-energized, and the return spring 65 pushes the clamping plate 64 back to its original position. The above actions can be repeated.

[0036] This device can store the required number of material bars at once, automatically supply the material bars, and automatically push the used bar tails 11 with tooling from the hanging tray 1 into the collection box 3.

[0037] Matters not covered in this utility model are common knowledge.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace, characterized in that: The mechanism includes a hanging tray, a collection box, a mounting plate, a guide and pusher assembly, and a feeding assembly; the hanging tray has a radially penetrating bar-changing groove in the middle; the collection box is located on the rear side of the hanging tray and corresponds to the rear side of the bar-changing groove; the feeding assembly is located on the upper front side of the hanging tray; the guide and pusher assembly is located on the lower rear side of the feeding assembly and corresponds to the front side of the bar-changing groove; the mounting plate is located on the front end of the feeding assembly.

2. The continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace according to claim 1, characterized in that: The feeding assembly includes a top plate, a downward hydraulic rod, a horizontal plate, a clamping plate, an electromagnet, triangular blocks, a non-locking push button switch, a convex plate, and a U-shaped plate. The U-shaped plate is horizontally arranged with its opening facing rearward, and its two ends on the opening side are connected to the guide and pushing assembly. The horizontal plate is arranged parallel above the U-shaped plate. The clamping plate is a metal plate that is slidably connected to the bottom of the horizontal plate. The electromagnet is fixed to the middle of the inner wall of the rear end of the horizontal plate and corresponds to the rear end of the clamping plate. The triangular blocks are evenly distributed on the bottom of the left and right sides of the clamping plate and are symmetrical to each other. The non-locking push button switch is fixed to the middle of the front end face of the horizontal plate. The convex plate is fixed to the middle of the front end of the U-shaped plate, and its upper end face is located a certain distance below the non-locking push button switch. The top plate is arranged parallel above the horizontal plate, and its rear bottom is fixedly connected to the middle of the upper end face of the horizontal plate through the downward hydraulic rod. The upper rear end of the mounting plate is fixedly connected to the front end of the top plate. The lower rear end of the mounting plate is fixedly connected to the convex plate.

3. The continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace according to claim 2, characterized in that: A return spring is provided between the rear end of the card plate and the electromagnet.

4. The continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace according to claim 2, characterized in that: The guiding and pushing assembly includes a connecting plate and a horizontal pushing hydraulic rod; the connecting plate is respectively hinged to both ends of the opening side of the U-shaped plate; the horizontal pushing hydraulic rod is respectively set at the rear end of the connecting plate, and its bottom is corresponding to the upper end face of the hanging plate.

5. The continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace according to claim 4, characterized in that: A baffle is provided at the bottom of the hinge joint between the connecting plate and the U-shaped plate; the baffle is fixedly connected to the U-shaped plate.

6. The continuous feeding mechanism for an electrode induction melting gas atomization pulverizing furnace according to claim 1, characterized in that: A connecting frame is fixed above the material hanging tray, which is used to connect the drive mechanism that drives the material hanging tray to move up and down.

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