High-output-value tin powder preparation machine

Abstract

The utility model discloses a high-output-value tin powder preparation machine which comprises a machine body, a tin melting furnace, an intermediate converter, a conveying pipe, a driving mechanism and a rotating disc. The machine body is provided with an atomizing cavity and a collecting cavity; the tin melting furnace is arranged outside the machine body; the intermediate converter is arranged in the atomizing cavity and is communicated with the tin melting furnace through a pipeline; the conveying pipe is arranged in the atomizing cavity; the driving mechanism is arranged at the communicating part of the atomizing cavity and the collecting cavity; the rotating disc comprises a main body part and a ceramic layer, the main body part is rotatably arranged on the driving mechanism, and the ceramic layer is embedded in the surface of the main body part. The main body part is rotatably arranged on the driving mechanism and is driven by the driving mechanism to rotate, the ceramic layer is embedded in the surface of the main body part and rotates along with the rotation of the main body part, and the mass of the ceramic material is light, so that the mass of the turntable is greatly reduced, and the turntable can reach a higher rotating speed under the same power; and the linear speed when the tin liquid is in contact with the rotating disc is effectively increased, so that the prepared tin powder particles are smaller in particle size.

Description

Technical Field

[0001] The utility model relates to the technology of equipment field, in particular to a high-output tin powder preparation machine. Background Art

[0002] Tin powder is a powder object, the main component of which is tin, with copper, silver, nickel and other metals added as needed. Tin powder is used to make materials such as solder paste, electrocarbon products, friction materials and oil-containing bearings. The manufacturing process of tin powder mainly includes centrifugal and ultrasonic methods. The centrifugal atomization process of tin powder is usually as follows: put the tin ingot into the tin melting furnace to melt it into liquid, and drop the liquid tin onto a high-speed rotating turntable by controlling the flow rate. The high-speed rotating turntable generates centrifugal force through rotation to throw the liquid metal out to form small balls one by one. The small balls are quickly cooled in an inert gas environment to form spherical tin powder particles.

[0003] The smaller the particle size of the tin powder particles, the higher its value. In the centrifugal atomization process, the particle size of the tin powder particles is related to the linear speed of the turntable. The higher the linear speed, the greater the centripetal force on the tin liquid, and the smaller the particle size of the tin powder particles. Most methods to increase the linear speed of the turntable are to increase the power of the motor or to use a turntable with a longer radius. The cost of high-power motors is high, and the motor is easily damaged when it runs at high power for a long time, which increases the maintenance cost of the equipment. Most existing turntables are made of steel and are heavier. The turntable with a longer radius also becomes heavier. It is difficult to achieve the original operating speed under the drive of the motor, and the increase in linear speed is quite limited. Therefore, it is necessary to propose a new solution to improve the above problems. Utility Model Content

[0004] In view of this, the utility model aims to improve the deficiencies of the prior art, and its main purpose is to provide a high-output tin powder preparation machine, which can effectively solve the problem that the existing tin powder preparation machines are difficult to prepare small-particle tin powder particles, and that high-power motors need to be used when preparing small-particle tin powder, thereby increasing the production cost of the tin powder and the maintenance cost of the equipment.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-yield tin powder preparation machine comprises a body, a tin melting furnace, a transfer furnace, a conveying pipe, a driving mechanism and a turntable; the body comprises an atomizing chamber and a collecting chamber, the atomizing chamber is located above the collecting chamber and is connected to the collecting chamber; the tin melting furnace is arranged outside the body; the transfer furnace is arranged in the atomizing chamber and is connected to the tin melting furnace through a pipeline; the conveying pipe is arranged in the atomizing chamber, the conveying pipe extends up and down, and the input end of the conveying pipe is connected to the transfer furnace; the driving mechanism is arranged at the connection point between the atomizing chamber and the collecting chamber and is located below the output end of the conveying pipe; the turntable is rotatably arranged on the driving mechanism and driven to rotate by the driving mechanism, and the turntable is located below the output end of the conveying pipe; the turntable comprises a main body and a ceramic layer, the main body is rotatably arranged on the driving mechanism and driven to rotate by the driving mechanism, and the ceramic layer is embedded on the surface of the main body and rotates with the rotation of the main body.

[0007] As a preferred solution, an embedding groove is provided on the surface of the main body, and a rib is protruded downward on the bottom surface of the ceramic layer. The rib is embedded in the embedding groove to prevent the ceramic layer from escaping from the main body during high-speed rotation.

[0008] As a preferred solution, the embedding groove and the convex rib are both in a "M" shape.

[0009] As a preferred solution, the lower end of the atomization chamber is in a cone shape with an inner diameter gradually decreasing from top to bottom, so as to facilitate the tin powder particles to enter the collection chamber from the atomization chamber.

[0010] As a preferred embodiment, it further includes multiple knocking mechanisms. The top of the body is hemispherical, one of the knocking mechanisms is located on the axial position of the center of the sphere at the top of the body, and the other knocking mechanisms are arranged on the outer peripheral side of the lower end of the atomization chamber, so that when the knocking mechanism knocks on the top of the body, the force on the top of the body is more balanced.

[0011] As a preferred solution, the striking mechanism is a pneumatic hammer.

[0012] As a preferred solution, the center of the turntable is located directly below the output end of the conveying pipe.

[0013] As a preferred solution, a groove is provided on the top of the machine body, and a baffle made of a transparent material is embedded in the groove, so that the staff can observe the situation inside the machine body through the baffle.

[0014] As a preferred solution, a water cooling tube is provided on the inner wall of the atomization chamber, and the water cooling tube is connected to an external cooling mechanism to reduce the temperature of the atomization chamber, so that the tin liquid condenses faster to form tin powder after atomization, effectively reducing the agglomeration of the tin powder and further reducing the particle size of the tin powder particles.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0016] The main body is rotatably arranged on the driving mechanism and driven to rotate by the driving mechanism. The ceramic layer is embedded on the surface of the main body and rotates with the rotation of the main body. The ceramic material is light in weight, which greatly reduces the weight of the turntable. Under the same power, the turntable can reach a higher rotation speed, effectively improving the linear speed when the tin liquid contacts the turntable, so that the particle size of the prepared tin powder particles is smaller. At the same time, there is no need to use a high-power motor, thereby reducing the production cost of the tin powder and the maintenance cost of the equipment.

[0017] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the utility model;

[0019] Figure 2 It is a bottom view of the turntable of the preferred embodiment of the utility model.

[0020] Description of the accompanying drawings:

[0021] 10. Machine body 11. Atomizing chamber

[0022] 12. Collection chamber 13. Embedded groove

[0023] 14. Baffle 15 cold pipe

[0024] 20. Tin melting furnace 30. Transfer furnace

[0025] 40. Delivery pipe 50. Driving mechanism

[0026] 60. Turntable 61. Main body

[0027] 611, embedded groove 62, ceramic layer

[0028] 621, rib 71, pipe

[0029] 72. Beating mechanism. DETAILED DESCRIPTION

[0030] Please refer to Figure 1 to Figure 2 As shown, it shows the specific structure of a preferred embodiment of the utility model, including an organism 10, a tin melting furnace 20, a transfer furnace 30, a conveying pipe 40, a driving mechanism 50 and a turntable 60.

[0031] The body 10 has an atomization chamber 11 and a collection chamber 12. The atomization chamber 11 is located above the collection chamber 12 and is in communication with the collection chamber 12. In this embodiment, the lower end of the atomization chamber 11 is in the shape of a cone with an inner diameter gradually decreasing from top to bottom, facilitating the entry of tin powder particles from the atomization chamber 11 into the collection chamber. A slot 13 is provided at the top of the body 10, and a baffle 14 made of a transparent material is embedded in the slot 13, through which the staff can observe the situation inside the body 10. In addition, a water-cooling pipe 15 is provided on the inner wall of the atomization chamber 11, and the water-cooling pipe 15 is in communication with an external cooling mechanism to reduce the temperature of the atomization chamber 11, enabling the tin liquid to condense faster into tin powder after atomization, effectively reducing the agglomeration of tin powder and further reducing the particle size of the tin powder particles.

[0032] The tin melting furnace 20 is arranged outside the body 10.

[0033] The intermediate furnace 30 is arranged in the atomization chamber 11 and is in communication with the tin melting furnace 20 through a pipeline 71.

[0034] The conveying pipe 40 is arranged in the atomization chamber 11, extends vertically, and the input end of the conveying pipe 40 is in communication with the intermediate furnace 30.

[0035] The driving mechanism 50 is arranged at the communication part between the atomization chamber 11 and the collection chamber 12 and is located below the output end of the conveying pipe 40.

[0036] The turntable 60 is rotatably arranged on the driving mechanism 50 and is driven by the driving mechanism 50 to rotate. The turntable 60 is located below the output end of the conveying pipe 40. The turntable 60 includes a main body part 61 and a ceramic layer 62. The main body part 61 is rotatably arranged on the driving mechanism 50 and is driven by the driving mechanism 50 to rotate. The ceramic layer 62 is embedded on the surface of the main body part 61 and rotates with the rotation of the main body part 61. In this embodiment, a slot 611 is provided on the surface of the main body part 61, and a rib 621 protrudes downward from the bottom surface of the ceramic layer 62. The rib 621 is embedded in the slot 611 to prevent the ceramic layer 62 from disengaging from the main body part 61 during high-speed rotation, and both the slot 611 and the rib 621 are in the shape of a "rice" character. In addition, the center of the turntable 60 is located directly below the output end of the conveying pipe 40.

[0037] In addition, it further includes a plurality of knocking mechanisms 72. The top of the body 10 is hemispherical. One knocking mechanism 72 is located on the axis position of the center of the top of the body 10, and the remaining knocking mechanisms 72 are arranged on the outer peripheral side surface of the lower end of the atomization chamber 11, so that when the knocking mechanisms 72 knock on the top of the body 10, the force on the top of the body 10 is more balanced. The knocking mechanism 72 is a pneumatic hammer.

[0038] The working principle of this embodiment is described in detail as follows:

[0039] First, the tin melting furnace 20 melts the tin block into tin liquid and transports it to the transfer furnace 30 through the pipeline 71. Then, the transfer furnace 30 drops the tin liquid onto the ceramic layer 62 of the rotating turntable 60 through the conveying pipe 40. The centrifugal force will atomize the tin liquid. After cooling, the atomized tin liquid will form tin powder particles. Most of the tin powder particles will float in the atomization chamber 11 and then fall into the collecting chamber 12. A small part will be adsorbed on the top of the machine 10 due to the effect of static electricity. Then, the knocking mechanism 72 regularly knocks on the top of the machine body 10, and the tin powder particles detach from the top of the machine body 10 and fall into the collecting chamber 12, so that the knocking frequency can be set to knock once every ten seconds or once every fifteen seconds, which can be adjusted according to actual production conditions.

[0040] The design focus of the utility model is that the main body is rotatably arranged on the driving mechanism and driven to rotate by the driving mechanism, and the ceramic layer is embedded on the surface of the main body and rotates with the rotation of the main body. The ceramic material is light in weight, which greatly reduces the weight of the turntable. Under the same power, the turntable can reach a higher rotation speed, effectively improving the linear speed when the tin liquid contacts the turntable, so that the particle size of the prepared tin powder particles is smaller.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high-yield tin powder preparation machine, comprising a body, a tin melting furnace, a transfer furnace, a conveying pipe, a driving mechanism and a turntable; the body has an atomizing chamber and a collecting chamber, the atomizing chamber is located above the collecting chamber and is connected to the collecting chamber; the tin melting furnace is arranged outside the body; the transfer furnace is arranged in the atomizing chamber and is connected to the tin melting furnace through a pipeline; the conveying pipe is arranged in the atomizing chamber, the conveying pipe extends up and down, and the input end of the conveying pipe is connected to the transfer furnace; the driving mechanism is arranged at the connection point between the atomizing chamber and the collecting chamber and is located below the output end of the conveying pipe; the turntable is rotatably arranged on the driving mechanism and driven to rotate by the driving mechanism, and the turntable is located below the output end of the conveying pipe; it is characterized in that: The turntable includes a main body part and a ceramic layer. The main body part is rotatably arranged on a driving mechanism and is driven by the driving mechanism to rotate. The ceramic layer is embedded on the surface of the main body part and rotates with the rotation of the main body part.

2. The high-yield tin powder preparation machine according to claim 1, characterized in that: A groove is formed on the surface of the main body part. A rib protrudes downward from the bottom surface of the ceramic layer, and the rib is embedded in the groove.

3. The high-yield tin powder preparation machine according to claim 2, characterized in that: Both the groove and the rib are in a "rice" shape.

4. The high-yield tin powder preparation machine according to claim 1, characterized in that: The lower end of the atomization chamber is in a conical shape with an inner diameter gradually decreasing from top to bottom.

5. The high-yield tin powder preparation machine according to claim 4, characterized in that: It further includes a plurality of knocking mechanisms. The top of the machine body is hemispherical. One of the knocking mechanisms is located on the axis position of the center of the sphere at the top of the machine body, and the remaining knocking mechanisms are arranged on the outer peripheral side surface of the lower end of the atomization chamber.

6. The high-yield tin powder preparation machine according to claim 5, characterized in that: The knocking mechanism is a pneumatic hammer.

7. The high-yield tin powder preparation machine according to claim 1, characterized in that: The center of the turntable is located directly below the output end of the conveying pipe.

8. The high-yield tin powder preparation machine according to claim 1, characterized in that: A groove is formed on the top of the machine body, and a baffle made of a transparent material is embedded in the groove.

9. The high-yield tin powder preparation machine according to claim 1, characterized in that: A water cooling pipe is arranged on the inner wall of the atomization chamber, and the water cooling pipe is communicated with an external cooling mechanism.

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