Planetary vacuum defoaming machine for medium and low temperature melts

Abstract

The planetary vacuum defoaming machine comprises a cavity door, a main body, a vacuum pump set and a vacuum pipeline, the cavity door is hinged to the main body, a transmission motor and a transmission part are arranged at the bottom of an inner cavity of the main body, and the vacuum pump set is arranged at the bottom of the inner cavity of the main body and connected with the inner cavity of the main body and the outside through the vacuum pipeline. A working part is arranged at the top of the inner cavity of the main body; wherein the transmission part comprises a driving gear, a driven gear, a magnetofluid transmission shaft, a planetary rotation bevel gear and a planetary revolution gear, the driving gear is fixedly connected to a main shaft body of the transmission motor, the driven gear and the planetary revolution gear are fixedly connected to shaft bodies at the two ends of the magnetofluid transmission shaft respectively, and the driven gear is meshed with the driving gear; the planetary rotation bevel gear is meshed with the planetary revolution gear; the working part comprises a Kevlar heating rod, a material crucible and a crucible tool, the material crucible is mounted on the crucible tool, and the Kevlar heating rod is mounted on the side wall of the inner cavity.

Description

Technical Field

[0001] The invention belongs to the technical field of medium and low temperature degassing, and more specifically, the invention relates to a planetary vacuum degassing machine for medium and low temperature melts. Background Art

[0002] Planetary vacuum degassing machines are widely used in electronics, chemicals, metals, ceramics and other industries, such as the preparation of high-performance electronic pastes, the production of coatings, inks and adhesives, and the improvement of material stability and strength in the metal and ceramic industries. It can quickly and thoroughly remove bubbles from materials and improve product quality by precisely controlling the vacuum degree and processing time.

[0003] The existing planetary vacuum degassing machine has the following problems when in use:

[0004] 1. The energy utilization rate of planetary vacuum degassing machines is generally not high when maintaining heating and vacuum states.

[0005] 2. Planetary vacuum degassing machines generally have complex structures and equipment structures, which increases the difficulty of production, use and maintenance.

[0006] 3. The degassing efficiency and finished product quality of the planetary vacuum degassing machine are low. The residual bubbles in the material will reduce the uniformity of the finished product.

[0007] For vacuum degassing of medium and low temperature melts, the melt needs to be transported to the kiln equipment, transferred to the vacuum degassing equipment after melting, and then transferred to the casting equipment again after degassing, which makes it impossible to form a compact production line. Summary of the invention

[0008] In order to solve the above-mentioned technical problems, the present invention provides a planetary vacuum degassing machine for medium and low temperature melts.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] A planetary vacuum degassing machine for medium and low temperature melts, comprising a chamber door, a main body, a vacuum pump group and a vacuum pipeline, wherein the chamber door and the main body are hinged, a transmission motor and a transmission part are arranged at the bottom of the main body inner cavity, the vacuum pump group is arranged at the bottom of the main body inner cavity and connects the main body inner cavity with the outside through a vacuum pipeline, the transmission motor and the transmission part are mechanically connected, and a working part is arranged at the top of the main body inner cavity; wherein:

[0011] The transmission part includes a driving gear, a driven gear, a magnetic fluid transmission shaft, a planetary self-transmission bevel gear and a planetary revolving gear. The driving gear is fixedly connected to the main shaft of the transmission motor, and the driven gear and the planetary revolving gear are respectively fixedly connected to the shaft bodies at both ends of the magnetic fluid transmission shaft. The driven gear is meshed with the driving gear, and the planetary self-transmission bevel gear is meshed with the planetary revolving gear.

[0012] The working part comprises a Kaizhuang heating rod, a material crucible and a crucible tooling, the material crucible is installed on the crucible tooling, and the Kaizhuang heating rod is installed on the side wall of the inner cavity.

[0013] The invention discloses a planetary vacuum degassing machine for medium and low temperature melts. The bottom side wall of the main body inner cavity is also provided with a motor contactor and a motor speed regulator. The motor contactor is used to control a vacuum pump group and a transmission motor, and the motor speed regulator is used to control the number of revolutions of the transmission motor.

[0014] The invention discloses a planetary vacuum degassing machine for medium and low temperature melts. The crucible tooling consists of two crucible mounting platforms. A driven bevel gear is arranged at the bottom of the crucible mounting platform. The planetary self-rotating bevel gear is meshed with the driven bevel gear.

[0015] The invention discloses a planetary vacuum degassing machine for medium- and low-temperature melts. The degassing machine is also provided with a photoelectric sensor and an emergency stop button.

[0016] The invention discloses a planetary vacuum degassing machine for medium and low temperature melts. The bottom of the degassing machine is also provided with supporting feet and rollers, and the inner wall of the degassing machine is covered with a heat preservation layer.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By increasing the room temperature field of the vacuum chamber, the temperature of the material in the chamber can be increased from room temperature to 600-800°C, thereby reducing the viscosity of the material, increasing the bubble precipitation rate, and reducing the internal defects of the medium and low temperature melt.

[0019] 2. By adding a planetary gear system, one transmission shaft can be used to meet the rotation and revolution of the fixture, reducing one rotation axis, greatly reducing the complexity of the equipment and extending the equipment maintenance cycle.

[0020] 3. By changing the rotating shaft structure from flexible seal to magnetic fluid seal, the ultimate vacuum value of the equipment is increased. The ultimate vacuum value is increased from 0-10Pa to 0-0.1Pa, which greatly improves the degassing and mixing effect.

[0021] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a brief description of the contents and symbols in the drawings of this specification:

[0023] Figure 1 It is a front view of the present invention;

[0024] Figure 2 It is a left side view of the present invention;

[0025] Reference numerals

[0026] 1. Chamber door; 2. Main body; 3. Insulation layer; 4. Kaizhuang heating rod; 5. Magnetofluid transmission shaft; 6. Vacuum pump group; 7. Motor contactor; 8. Material crucible; 9. Crucible tooling; 10. Vacuum pipeline; 11. Motor speed regulator; 12. Transmission motor; 13. Support foot; 14. Driven bevel gear; 15. Planetary self-rotation bevel gear; 16. Planetary revolution gear; 17. Exhaust pipe; 18. Photoelectric sensor; 19. Emergency stop button; 20. Driving gear; 21. Driven gear. DETAILED DESCRIPTION

[0027] The following, with reference to the accompanying drawings, provides a further detailed description of the specific implementation methods of the present invention, such as the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, the manufacturing process and the operating methods, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0028] like Figure 1 and Figure 2 The planetary vacuum degassing machine for medium and low temperature melt shown in the figure comprises a chamber door 1, a main body 2, a vacuum pump group 6 and a vacuum pipe 10, the chamber door 1 and the main body 2 are hinged, a transmission motor 12 and a transmission part are arranged at the bottom of the inner cavity of the main body 2, the vacuum pump group 6 is arranged at the bottom of the inner cavity of the main body 1 and connects the inner cavity of the main body 2 with the outside through the vacuum pipe 10, the transmission motor 12 and the transmission part are mechanically connected, and a working part is arranged at the top of the inner cavity of the main body 2; wherein: the transmission part comprises a driving gear 20, a driven gear 21, a magnetic fluid transmission shaft 5 , planetary self-rotating bevel gears 15 and planetary revolving gears 16, the driving gear 20 is fixedly connected to the main shaft of the transmission motor 12, the driven gear 21 and the planetary revolving gear 16 are respectively fixedly connected to the two end shafts of the magnetic fluid transmission shaft 5, the driven gear 21 is meshed with the driving gear 20, and the planetary self-rotating bevel gears 15 are meshed with the planetary revolving gears 16; the working part includes a Kaizhuang heating rod 4, a material crucible 8 and a crucible tooling 9, the material crucible 8 is installed on the crucible tooling 9, and the Kaizhuang heating rod 4 is installed on the side wall of the inner cavity.

[0029] like Figure 1 The bottom side wall of the inner cavity of the main body 2 shown in the figure also has a motor contactor 7 and a motor speed regulator 11. The motor contactor 7 is used to control the vacuum pump group 6 and the transmission motor 12, and the motor speed regulator 11 is used to control the number of revolutions of the transmission motor 12.

[0030] like Figure 1 and Figure 2 The crucible fixture 9 shown is composed of two crucible mounting platforms. A driven bevel gear 14 is provided at the bottom of the crucible mounting platform, and a planetary self-rotating bevel gear 15 is meshed with the driven bevel gear 14 .

[0031] like Figure 2 The degassing machine shown is also provided with a photoelectric sensor 18 and an emergency stop button 19 .

[0032] like Figure 1 The bottom of the degassing machine shown is also provided with supporting feet 13 and rollers, and the inner wall of the degassing machine is covered with a heat-insulating layer 3.

[0033] Working principle and method

[0034] The driving gear 21 is installed on the main shaft of the transmission motor and meshes with the driven gear 20 to form a transmission. The driven gear 20 is coaxial with the magnetic fluid rotating shaft 5 and drives the planetary revolution gear 16. The planetary revolution gear 16 meshes with the planetary self-rotation bevel gear 15, and the planetary self-rotation bevel gear 15 meshes with the driven bevel gear 14 to form a transmission.

[0035] When in use, open the chamber door 1, place the phosphate glass raw material in the material crucible 8, and install the crucible cover. Close the chamber door 1. Start heating, the Kaizhuang heating rod 4 converts electrical energy into thermal energy, the temperature is displayed at about 700°C, and the transmission motor 5 is started; the driving gear 21 rotates to drive the driven gear 20, and the driven gear 20 is coaxial with the magnetic fluid rotating shaft 5 and the planetary revolution gear 16, so as to rotate synchronously to form the revolution of the material crucible 8. The planetary revolution gear 16 drives the planetary self-rotation bevel gear 15 and the driven bevel gear 14 to mesh, and the driven bevel gear 14 is coaxial with the crucible tooling 9, so as to form the self-rotation of the material crucible 8. The speed of the transmission motor 12 can be controlled by the motor speed regulator 11 to meet the process requirements. During the rotation of the material crucible 8, the vacuum pump group 6 is started to provide negative pressure in the vacuum chamber. Thereby achieving the purpose of vacuum degassing.

[0036] After the time is satisfied, when the temperature drops to about 200°C, open the chamber door 1, wear protective equipment, take out the material crucible 8, and proceed to the next step of phosphate glass shaping. The phosphate glass after shaping and cooling has a smooth surface, no pores inside, and excellent light transmittance.

[0037] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A planetary vacuum degassing machine for medium and low temperature melts, comprising a chamber door, a main body, a vacuum pump set and a vacuum pipeline, wherein the chamber door and the main body are hinged, characterized in that: The bottom of the main body inner cavity is provided with a transmission motor and a transmission part, the vacuum pump group is arranged at the bottom of the main body inner cavity and connects the main body inner cavity with the outside through a vacuum pipeline, the transmission motor and the transmission part are mechanically connected, and the top of the main body inner cavity is provided with a working part; wherein: The transmission part includes a driving gear, a driven gear, a magnetic fluid transmission shaft, a planetary self-transmission bevel gear and a planetary revolving gear. The driving gear is fixedly connected to the main shaft of the transmission motor, and the driven gear and the planetary revolving gear are respectively fixedly connected to the shaft bodies at both ends of the magnetic fluid transmission shaft. The driven gear is meshed with the driving gear, and the planetary self-transmission bevel gear is meshed with the planetary revolving gear. The working part comprises a Kaizhuang heating rod, a material crucible and a crucible tooling, the material crucible is installed on the crucible tooling, and the Kaizhuang heating rod is installed on the side wall of the inner cavity.

2. A planetary vacuum degassing machine for medium and low temperature melt according to claim 1, characterized in that: The bottom side wall of the main body inner cavity also has a motor contactor and a motor speed regulator. The motor contactor is used to control the vacuum pump group and the transmission motor, and the motor speed regulator is used to control the number of rotations of the transmission motor.

3. The planetary vacuum degassing machine for medium and low temperature melt according to claim 1, characterized in that: The crucible tooling consists of two crucible mounting platforms. A driven bevel gear is arranged at the bottom of the crucible mounting platform. The planetary self-rotating bevel gear is meshed with the driven bevel gear.

4. The planetary vacuum degassing machine for medium and low temperature melt according to claim 1, characterized in that: The degassing machine is also provided with a photoelectric sensor and an emergency stop button.

5. The planetary vacuum degassing machine for medium and low temperature melt according to claim 1, characterized in that: The bottom of the degassing machine is also provided with supporting feet and rollers, and the inner wall of the degassing machine is covered with a heat-insulating layer.

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