Metal powder nitriding device

Abstract

The invention belongs to the technical field of metal powder processing, and relates to a metal powder nitriding device which comprises a tank body, an arc-shaped baffle, a spring, a material pushing plate, an electric guide rail, a sealing piece and an elastic rope. A spring is connected between the arc-shaped baffle and the guide rod; the material pushing plate is arranged in the tank body in a sliding manner; the electric guide rail is installed on the tank body, and a sliding block of the electric guide rail is connected with the material pushing plate; a sealing piece is arranged between a sliding block of the electric guide rail and the tank body; the elastic rope is connected between the arc-shaped baffle and the sliding block of the electric guide rail, and the elastic coefficient of the elastic rope is smaller than that of the spring. The arc-shaped baffle is automatically loosened and opened through the elastic rope and the spring, when the pushing plate is reset to half, the arc-shaped baffle is still opened so that metal powder can be conveniently added, then the pushing plate continues to reset to close the arc-shaped baffle, the step of manually opening and closing the arc-shaped baffle is omitted, and operation is convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of metal powder processing, and in particular relates to a metal powder nitriding device. Background Art

[0002] Nitriding, also known as nitriding, is divided into soft nitriding and hard nitriding. The nitriding process is the same as other chemical heat treatments, including the reaction of the nitriding agent, diffusion in the solvent, phase interface reaction, diffusion of nitrogen in iron, and the formation of nitrides during the diffusion process.

[0003] When manufacturing some metal powders, the metal powders can be nitrided by gas method to improve the hardness, surface quality, material strength, etc. of the metal powders. At present, there are relatively few devices for nitriding metal powders. Most of them are directly put into containers for nitriding. However, the container needs to be kept sealed during the nitriding process. Therefore, the container needs to be closed every time the metal powders are processed, and the container needs to be opened every time the metal powders are taken out (the temperature during nitriding is extremely high, and air circulation is required for discharge, but it is not convenient to open the container manually). This repetition is cumbersome and inconvenient for the preparation of metal powders. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a metal powder nitriding device which can automatically open and close the container according to the processing conditions of the metal powder, is simple to operate, and is easy to prepare.

[0005] In order to solve the above technical problems, the present invention provides a metal powder nitriding device, including a base frame, a tank body, a filter frame, a nitrogen suction pump, a gas pipe, a guide rod, an arc-shaped baffle, a spring, a push plate, an electric guide rail, a seal and an elastic rope, wherein the tank body has a built-in electric heater, and the tank body is connected to the upper left side of the base frame; the nitrogen suction pumps are provided with two and are opposite to each other front and back, and the two nitrogen suction pumps are both connected to the lower left side of the base frame, and the output pipe of the nitrogen suction pump is connected to the lower part of the tank body with a gas pipe for conveying nitrogen; the upper right side of the tank body is connected with a guide rod in the shape of an arc; the arc baffle is located at the feed port of the tank body, the arc baffle is slidably arranged on the guide rod, and a gas pipe surrounding the arc baffle and the guide rod is connected between the arc baffle and the guide rod. The spring of the guide rod; the push plate is slidably arranged inside the tank body, and the push plate is suitable for pushing the metal powder out of the discharge port of the tank body; the electric guide rail is installed on the upper rear side of the tank body, and the slider of the electric guide rail is connected to the push plate; a sealing member for sealing is provided between the slider of the electric guide rail and the tank body; the elastic rope is connected between the arc baffle and the slider of the electric guide rail, and the elastic coefficient of the elastic rope is smaller than the elastic coefficient of the spring; the discharge assembly is arranged on the discharge port of the tank body, and the discharge assembly is used to control the opening and closing of the discharge port on the tank body, and the inner side of the tank body is connected to a filter frame close to its discharge port, and the filter frame can separate some adhered metal powders or filter some larger metal powders.

[0006] Preferably, the sealing member is a telescopic folding sealing cloth, one end of the sealing member is connected to the slider, and the other end of the sealing member is connected to the tank body.

[0007] Preferably, the sealing member is a sliding plate, one end of the sealing member is connected to a sliding block, and the sealing member slides through the tank body.

[0008] Preferably, the discharge assembly includes a connecting frame and a baffle plate, the connecting frame having a through hole, one end of the through hole on the connecting frame being connected to the discharge port of the tank body, and the other end of the through hole on the connecting frame being used to receive a container for collecting metal powder externally; the baffle plate slides on the connecting frame and has a closed state of blocking the through hole and an open state of releasing the through hole.

[0009] Preferably, it also includes a connecting rod, a piston cylinder, a piston and a push rod, the front and rear sides of the lower part of the baffle plate are connected to the connecting rod; the piston cylinder is vertically arranged, and the upper and lower ends of the piston cylinder are connected to the air pipe by pipelines, and a piston is slidably provided on the piston cylinder; the push rod is located below the connecting rod and contacts and cooperates with the connecting rod, and the push rod is fixedly connected to the upper end of the piston.

[0010] Preferably, the pipeline at the upper end of the piston cylinder is connected to the upper end side of the piston cylinder, and the maximum height of the piston moving upward is higher than the pipeline at the upper end of the piston cylinder.

[0011] Preferably, it also includes a transfer pipe and a collecting tank, wherein the transfer pipe is fixedly connected to the base frame and communicated with the connecting frame, and the collecting tank is placed on the upper right side of the base frame, and the collecting tank corresponds to the transfer pipe.

[0012] Preferably, it also includes a U-shaped connecting frame and a lifting baffle, wherein the U-shaped connecting frame is fixedly connected between the front and rear sides of the base frame, and the lifting baffle is slidably arranged on the upper part of the U-shaped connecting frame, and the lifting baffle is located above the position between the transfer pipe and the collecting tank.

[0013] Preferably, the lifting baffle is in a V-shape, one side of the lifting baffle is perpendicular to the transfer pipe, and the other side of the lifting baffle is inclined toward the collecting tank.

[0014] Preferably, it also includes a water tank and a vibrator, wherein the water tank surrounds the lower part of the aggregate tank and is installed to the upper right side of the base frame; the vibrator is installed between the base frame and the tank body.

[0015] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects: 1. When the push plate pushes out the metal powder, the elastic rope and spring automatically loosen and open the arc baffle. When the push plate is reset to half, the arc baffle is still open, which is convenient for adding metal powder. Then the push plate continues to reset and close the arc baffle, eliminating the steps of manually opening and closing the arc baffle, and the operation is convenient.

[0016] 2. When the metal powder is nitrided, the baffle plate is moved up by nitrogen to prevent the metal powder from being discharged at will. When the metal powder processing is stopped, the baffle plate will move down and open under the action of gravity to facilitate the discharge operation.

[0017] 3. The additional aggregate tank is used to facilitate the transfer of processed metal powder, and the water tank can pre-cool the aggregate tank to facilitate the subsequent movement of the aggregate tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an assembly schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the tank body of the present invention.

[0020] Figure 3 It is a cross-sectional view of the tank body of the present invention.

[0021] Figure 4It is a schematic diagram of the use status of the push plate and the baffle of the present invention.

[0022] Figure 5 Schematic diagram of the seal of the present invention.

[0023] Figure 6 It is a schematic diagram of the connection frame of the present invention.

[0024] Figure 7 It is a cross-sectional view of the piston cylinder of the present invention.

[0025] Figure 8 It is a schematic diagram of the aggregate tank of the present invention.

[0026] Fig. 9 It is a schematic diagram of the lifting baffle of the present invention.

[0027] Fig.10 It is a schematic diagram of a water tank of the present invention.

[0028] The marks in the accompanying drawings provided by the present invention are: 1-base frame, 2-tank body, 3-nitrogen suction pump, 4-air delivery pipe, 5-guide rod, 6-arc baffle, 7-spring, 8-electric guide rail, 81-slider, 9-push plate, 10-elastic rope, 11-seal, 12-filter frame, 13-connecting frame, 14-baffle plate, 15-connecting rod, 16-piston cylinder, 17-piston, 18-push rod, 19-transfer pipe, 20-collecting tank, 21-U-shaped connecting frame, 22-lifting baffle, 23-water tank, 24-vibrator. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Embodiment 1: A metal powder nitriding device, such as Figure 1-Figure 5As shown, it includes a base frame 1, a tank body 2, a filter frame 12, a nitrogen suction pump 3, an air pipe 4, a guide rod 5, an arc baffle 6, a spring 7, a push plate 9, an electric guide rail 8, a seal 11 and an elastic rope 10. The tank body 2 has a built-in electric heater, and the tank body 2 is connected to the upper left side of the base frame 1; the nitrogen suction pump 3 is provided with two and is opposite to each other front and back, and the two nitrogen suction pumps 3 are both connected to the lower left side of the base frame 1, and the output pipe of the nitrogen suction pump 3 is connected to the lower part of the tank body 2 through the air pipe 4 for conveying nitrogen. Metal powder is added into the tank body 2, and the tank body 2 is heated by the electric heater. Then the nitrogen suction pump 3 conveys nitrogen into the tank body 2 through the air pipe 4, so as to nitride the metal powder. ; An arc-shaped guide rod 5 is connected to the upper right side of the tank body 2; the arc baffle 6 is located at the feed port of the tank body 2, and the arc baffle 6 is slidably arranged on the guide rod 5. A spring 7 surrounding the guide rod 5 is connected between the arc baffle 6 and the guide rod 5, and the spring 7 is used to reset the arc baffle 6 after sliding. When the arc baffle 6 slides to be offset from the feed port of the tank body 2, metal powder can be added into the tank body 2, otherwise the arc baffle 6 is sealed; the push plate 9 is slidably arranged inside the tank body 2, and the push plate 9 is suitable for pushing the metal powder out of the discharge port of the tank body 2; the electric guide rail 8 is installed on the upper rear side of the tank body 2, and the slider 81 of the electric guide rail 8 is connected to the push plate 9 is connected, and the electric guide rail 8 is controlled to drive the push plate 9 to move right so that the processed metal powder can be pushed out of the tank body 2; a sealing member 11 for sealing is provided between the slider 81 of the electric guide rail 8 and the tank body 2; the elastic rope 10 is connected between the arc baffle 6 and the slider 81 of the electric guide rail 8, and the elastic coefficient of the elastic rope 10 is less than the elastic coefficient of the spring 7; when the metal powder is nitrided, the arc baffle 6 is located on the inner left side of the tank body 2, and the elastic rope 10 and the spring 7 are both in a stretched state. When the nitriding treatment of the metal powder is completed, the slider 81 of the electric guide rail 8 drives the push plate 9 to move right to push out the metal powder, and the slider 81 will gradually loosen the elastic rope 10, but due to the elastic rope 1 0 is smaller than the elastic coefficient of the spring 7, so the spring 7 will be reset in advance, and the arc baffle 6 will slide open under the action of the spring 7 resetting, so that the arc baffle 6 is automatically opened during discharging, and the slider 81 continues to move right to reset the elastic rope 10. After the discharging is completed, when the next metal powder processing is required, the electric guide rail 8 is controlled to drive the slider 81 to drive the push plate 9 to move left to leave space. During this process, the elastic rope 10 will be stretched in advance, so the arc baffle 6 will not be closed. When the push plate 9 moves left to the middle of the tank body 2, the metal powder can be added to the tank body 2, and then the push plate 9 continues to move left and reset, so that the metal powder will gradually and automatically level under the action of gravity, and then the spring 7 is stretched, and the arc baffle 6 slides closed;The discharge assembly is arranged on the discharge port of the tank body 2, and the discharge assembly is used to control the opening and closing of the discharge port on the tank body 2. The inner side of the tank body 2 is connected to a filter frame 12 close to its discharge port, and the filter frame 12 can separate some adhered metal powders or filter some larger metal powders. ;

[0032] Embodiment 2: Based on embodiment 1, Figure 5 As shown, the seal 11 is a telescopic folding sealing cloth, one end of the seal 11 is connected to the slider 81, and the other end of the seal 11 is connected to the tank body 2; when processing metal powder, the slider 81 will straighten the seal 11 to ensure the sealing effect, and when pushing out the metal powder, the slider 81 moves to the right to drive the seal 11 to fold.

[0033] Embodiment 3: Based on embodiment 2, Figure 5 As shown, the seal 11 is a sliding plate, one end of which is connected to the slider 81, and the seal 11 slides through the tank body 2; initially, the seal 11 is sealed between the slider 81 and the tank body 2, and when the metal powder is pushed out, the slider 81 moves rightward, which drives the seal 11 to move rightward.

[0034] Embodiment 4: Based on the embodiment 3, Figure 6 and Figure 7 As shown, the discharge assembly includes a connecting frame 13 and a baffle plate 14, the connecting frame 13 has a through hole, one end of the through hole on the connecting frame 13 is connected to the discharge port of the tank body 2, and the other end of the through hole on the connecting frame 13 is used to receive a container for collecting metal powder; the baffle plate 14 slides on the connecting frame 13 and has a closed state of blocking the through hole and an open state of releasing the through hole; the container is snapped to the right end of the connecting frame 13, the baffle plate 14 is moved down to open it, and the right-moving push plate 9 will push the metal powder into the through hole on the connecting frame 13, and the through hole will guide the metal powder into the container, so as to facilitate the collection of the processed metal powder.

[0035] like Figure 6 and Figure 7As shown, it also includes a connecting rod 15, a piston cylinder 16, a piston 17 and a push rod 18. The front and rear sides of the lower part of the baffle plate 14 are connected to the connecting rod 15, and the connecting rod 15 moves up and down to drive the baffle plate 14 to move up and close and down and open; the piston cylinder 16 is vertically arranged, and the upper and lower ends of the piston cylinder 16 are connected to the gas pipe 4 by pipelines. The piston cylinder 16 is slidably provided with a piston 17. When the metal powder is nitrided, the nitrogen will pass through the piston cylinder 16 to push the piston 17 up to stop the delivery. When nitrogen is used, the piston 17 moves downward under the action of gravity; the push rod 18 is located below the connecting rod 15 and contacts and cooperates with the connecting rod 15, and the push rod 18 is fixedly connected to the upper end of the piston 17. The upward movement of the piston 17 will drive the push rod 18 to move upward and push the baffle plate 14, thereby automatically and synchronously closing the baffle plate 14 when the metal powder is nitrided. The downward movement of the piston 17 will drive the push rod 18 to move downward and push the baffle plate 14, thereby automatically and synchronously opening the baffle plate 14 when the metal powder processing is stopped.

[0036] As a preferred embodiment of the present invention, the pipe at the upper end of the piston cylinder 16 is connected to the upper side surface of the piston cylinder 16, and the maximum height of the upward movement of the piston 17 is higher than the pipe at the upper end of the piston cylinder 16, so that the nitrogen flowing into the piston cylinder 16 can quickly flow to the gas pipe 4 through the pipe above, thereby ensuring the nitrogen delivery effect on the basis of nitrogen driving the piston 17.

[0037] like Figure 1 and Figure 8 As shown, it also includes a transfer pipe 19 and a collecting tank 20, the transfer pipe 19 is fixedly connected to the base frame 1 and is connected to the connecting frame 13, the collecting tank 20 is placed on the upper right side of the base frame 1, and the collecting tank 20 corresponds to the transfer pipe 19; the metal powder pushed out from the tank body 2 will enter the collecting tank 20 through the connecting frame 13 and the transfer pipe 19, and the collecting tank 20 can be removed from the base frame 1 to conveniently collect the metal powder.

[0038] like Figure 1 and Fig. 9 As shown, it also includes a U-shaped connecting frame 21 and a lifting baffle 22. The U-shaped connecting frame 21 is fixedly connected between the front and rear sides of the base frame 1. The lifting baffle 22 is slidably arranged on the upper part of the U-shaped connecting frame 21. The lifting baffle 22 is located above the position between the transfer pipe 19 and the collecting tank 20. The collecting tank 20 after being placed will support the lifting baffle 22. When the collecting tank 20 is removed, the lifting baffle 22 is moved down to block the transfer pipe 19, so as to avoid the leakage of metal powder.

[0039] As a preferred embodiment of the present invention, the lifting baffle 22 is in a V-shape, one side of the lifting baffle 22 is perpendicular to the transfer pipe 19, and the other side of the lifting baffle 22 is inclined toward the aggregate tank 20. When the aggregate tank 20 is placed, the aggregate tank 20 will squeeze the lifting baffle 22 to move upward, thereby eliminating the need to manually move the lifting baffle 22 upward, and having a high degree of automation.

[0040] like Figure 1 and Fig.10 As shown, it also includes a water tank 23 and a vibrator 24. The water tank 23 surrounds the bottom of the aggregate tank 20. The water tank 23 is installed on the upper right side of the base frame 1. Water is added into the water tank 23. When the metal powder enters the aggregate tank 20, the aggregate tank 20 can be cooled in advance, so as to facilitate transfer. The vibrator 24 is installed between the base frame 1 and the tank body 2. The metal powder in the tank body 2 is vibrated by the vibrator 24, so as to facilitate the full fusion of the metal powder and the nitrogen.

[0041] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. They only express the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention.

[0042] It should be pointed out that, for ordinary technicians in this field, several modifications, increases and decreases in quantity, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

Claims

1. A metal powder nitriding device, comprising: A base frame (1) and a tank body (2), wherein the tank body (2) has a built-in electric heater; A nitrogen suction pump (3), wherein the nitrogen suction pump (3) and the tank body (2) are both connected to the base frame (1); an air delivery pipe (4) is connected between the output pipe of the nitrogen suction pump (3) and the tank body (2); An arc-shaped baffle (6), the tank body (2) being connected to a guide rod (5), the arc-shaped baffle (6) being located at the feed inlet of the tank body (2), and the arc-shaped baffle (6) being slidably arranged on the guide rod (5); A spring (7), wherein a spring (7) is connected between the arc-shaped baffle plate (6) and the guide rod (5); It is characterized by further comprising: A push plate (9) is slidably arranged inside the tank body (2), and the push plate (9) is suitable for pushing the metal powder out of the discharge port of the tank body (2); An electric guide rail (8) is mounted on the tank body (2), and a slider (81) of the electric guide rail (8) is connected to the push plate (9); A sealing member (11), wherein a sealing member (11) for sealing is provided between the slider (81) of the electric guide rail (8) and the tank body (2); An elastic rope (10) connected between the arc-shaped baffle (6) and the slider (81) of the electric guide rail (8), and the elastic coefficient of the elastic rope (10) is smaller than the elastic coefficient of the spring (7); A discharge assembly is arranged on the discharge port of the tank body (2), and the discharge assembly is used to control the opening and closing of the discharge port on the tank body (2).

2. A metal powder nitriding device according to claim 1, characterized in that: The sealing member (11) is a telescopic folding sealing cloth; one end of the sealing member (11) is connected to the slider (81), and the other end of the sealing member (11) is connected to the tank body (2).

3. A metal powder nitriding device according to claim 1, characterized in that: The sealing member (11) is a sliding plate, one end of the sealing member (11) is connected to the sliding block (81), and the sealing member (11) slides through the tank body (2).

4. The metal powder nitriding device according to claim 1, characterized in that: The nesting assembly includes: A communication frame (13) having a through hole, one end of the through hole on the communication frame (13) being connected to the discharge port of the tank body (2); The material blocking plate (14) slides on the communication frame (13) and has a closed state for blocking the through hole and an open state for releasing the through hole.

5. The metal powder nitriding device according to claim 4, characterized in that: Also includes: A connecting rod (15), the side of the material blocking plate (14) being connected to the connecting rod (15); A piston cylinder (16) is arranged vertically, and the upper and lower ends of the piston cylinder (16) are connected to the gas pipe (4) by pipelines, and a piston (17) is slidably provided on the piston cylinder (16); A push rod (18) is in contact with and cooperates with the connecting rod (15), and the push rod (18) is fixedly connected to the end of the piston (17).

6. A metal powder nitriding device according to claim 5, characterized in that: The pipe at the upper end of the piston cylinder (16) is connected to the upper end side surface of the piston cylinder (16), and the maximum height of the upward movement of the piston (17) is higher than the pipe at the upper end of the piston cylinder (16).

7. The metal powder nitriding device according to claim 4, characterized in that: Also includes: A transfer pipe (19) fixedly connected to the base frame (1) and connected to the communication frame (13); A material collecting tank (20) is placed on the base frame (1), and the material collecting tank (20) corresponds to the transfer pipe (19).

8. The metal powder nitriding device according to claim 7, characterized in that: Also includes: A U-shaped connecting frame (21) connected to the base frame (1); A lifting baffle (22) is slidably disposed on the U-shaped connecting frame (21), and the lifting baffle (22) is located above a position between the transfer pipe (19) and the collecting tank (20).

9. The metal powder nitriding device according to claim 8, characterized in that: The lifting baffle (22) is in a V-shape; One side of the lifting baffle (22) is perpendicular to the transfer pipe (19), and the other side of the lifting baffle (22) is inclined toward the collecting tank (20).

10. The metal powder nitriding device according to claim 7, characterized in that: Also includes: A water tank (23) is disposed around the bottom of the collecting tank (20), and the water tank (23) is mounted on the base frame (1); The vibrator (24) is installed between the base frame (1) and the tank body (2).

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