Vacuum powder stirring machine

Abstract

The utility model discloses and provides a vacuum powder stirring machine which comprises a base, a stirring barrel detachably connected to the surface of the base, a barrel cover arranged at the top end of the stirring barrel, a stirring assembly rotationally connected to the barrel cover, a supporting rod fixedly connected to the surface of the base, a driving assembly rotationally connected to the top end of the supporting rod, and a water inlet formed in the top end of the barrel cover. A water inlet convergence connector is embedded in the water inlet and connected with a water inlet assembly through a pipeline, a barrel bottom is arranged in the middle of the stirring barrel, a grouting hole is formed in the middle of the barrel bottom and provided with a ball valve assembly, and a vacuumizing hole is formed in the base and connected with a vacuumizing assembly through a pipeline. The barrel bottom is arranged in the middle of the stirring barrel, the stirring barrel is divided into the upper cavity and the lower cavity, the upper portion is used for stirring, the lower portion is used for pouring and condensing, separate operation is not needed, the water inlet convergence connector is directly embedded in the barrel cover and can be directly pulled out when opened, a water pipe does not need to be detached, and operation is convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of jewelry processing equipment, and in particular to a vacuum powder mixing machine. Background Art

[0002] The vacuum powder mixer adds gypsum powder into a mixing barrel, vacuums it and then adds water to stir it. After stirring, the gypsum slurry is placed in a mold to solidify. The vacuum is also drawn during the solidification process. The current vacuum powder mixer needs to stir first, then take out the gypsum liquid and put it into the mold, and when the mixing barrel is opened, a joint connecting to the water pipe is fixed on the top of the barrel cover. The water pipe needs to be removed before the barrel cover can be opened. The overall operation is very troublesome. Utility Model Content

[0003] The present disclosure provides a vacuum powder mixer to solve one of the technical problems recognized by the inventor.

[0004] The present disclosure provides a vacuum powder mixer, comprising a base, a stirring barrel detachably connected to the surface of the base, a barrel cover is arranged on the top of the stirring barrel, a stirring assembly is rotatably connected to the barrel cover, a support rod is fixedly connected to the surface of the base, a driving assembly is rotatably connected to the top of the support rod, the driving assembly is transmission-connected to the stirring assembly, a water inlet is provided at the top of the barrel cover, a water inlet junction is embedded in the water inlet, the water inlet junction is connected to the water inlet assembly via a pipeline, a barrel bottom is provided in the middle of the stirring barrel, a grouting hole is provided in the middle of the barrel bottom, a ball valve assembly is provided in the grouting hole, a vacuum pipe connecting joint is provided on the base, and the vacuum pipe connecting joint is connected to the vacuum assembly via a pipeline.

[0005] Preferably, the water inlet assembly includes a water inlet joint, a measuring cylinder water inlet solenoid valve, a stirring water inlet solenoid valve and a measuring cylinder, the water inlet joint is embedded in the side of the base, the measuring cylinder water inlet solenoid valve and the stirring water inlet solenoid valve are arranged inside the base, the measuring cylinder is embedded in the surface of the base, and a measuring cylinder water inlet joint is embedded in a position corresponding to the base and the measuring cylinder, one end of the water inlet joint is connected to the input end of the measuring cylinder water inlet solenoid valve through a pipe, the output end of the measuring cylinder water inlet solenoid valve is connected to the input end of the measuring cylinder water inlet joint through a pipe, the measuring cylinder water inlet joint is connected to one end of the stirring water inlet solenoid valve, and the other end of the stirring water inlet solenoid valve is connected to the water inlet junction joint through a pipe.

[0006] Preferably, a cleaning water inlet solenoid valve is further included, one end of the cleaning water inlet solenoid valve is connected to the water inlet joint through a pipeline, and the other end of the cleaning water inlet solenoid valve is connected to the water inlet junction through a pipeline.

[0007] Preferably, the vacuum pump assembly includes a vacuum pump pipe joint, an exhaust joint and a vacuum filter; the vacuum pump pipe joint is embedded in the side of the base, the vacuum pump pipe joint is connected to one end of the vacuum filter through an air pipe, the other end of the vacuum filter is connected to the vacuum pipe connecting joint through an air pipe, the exhaust joint is embedded in the side of the base, one end of the exhaust joint is connected to a muffler, and the other end is connected to the vacuum pipe connecting joint through a pipe, and an exhaust solenoid valve is arranged between the exhaust joint and the vacuum pipe connecting joint.

[0008] Preferably, a connecting pipe is further included, wherein the connecting pipe is fixedly connected to the side of the mixing barrel, and both ends of the connecting pipe are respectively connected to the upper and lower cavities of the mixing barrel.

[0009] Preferably, the driving assembly includes a bearing seat, a swing table base, a motor mounting plate and a driving motor, the bearing seat is fixedly connected to the top end of the support rod, the swing table base is rotatably connected to the surface of the bearing seat, the motor mounting plate is hinged to one end of the swing table base, the driving motor is fixedly connected to the surface of the motor mounting plate, and the output shaft of the driving motor is transmission-connected to the stirring assembly.

[0010] Preferably, the stirring assembly includes a stirring shaft and a stirring blade, the stirring shaft is rotatably connected to the middle part of the barrel cover, one end of the stirring shaft is drivingly connected to the output shaft of the drive motor, and the other end passes through the barrel cover and extends to above the bottom of the barrel, and the stirring blade is fixedly connected to the side of the stirring shaft.

[0011] Preferably, the ball valve assembly includes a ball valve embedded in the grouting hole, a ball valve extension rod is fixedly connected to the side of the ball valve, one end of the ball valve extension rod passes through the mixing barrel and extends to the outside of the mixing barrel, and the ball valve extension rod is located on the outside of the mixing barrel and is fixedly connected to a ball valve handle.

[0012] Preferably, a barrel bottom sealing ring is provided at the connection between the mixing barrel and the base, and a water inlet sealing ring is provided at the connection between the water inlet junction and the water inlet.

[0013] Preferably, a control panel is embedded in the side of the base, and a vacuum pump power connector and a main power connector are embedded in the side of the base, and the vacuum pump power connector and the main power connector are electrically connected to the control panel respectively.

[0014] The beneficial effects of the present disclosure are mainly as follows: the utility model arranges a barrel bottom in the middle of the mixing barrel, so that the mixing barrel is divided into two upper and lower cavities, the upper part is used for mixing, and the lower part is used for condensation, without the need for separate operations, and the water inlet junction is directly embedded in the barrel cover, which can be directly pulled out when opened without disassembling the water pipe, and the operation is convenient and quick.

[0015] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The three-dimensional structure of the vacuum powder mixer according to the embodiment of the present disclosure is shown in FIG. Figure 1 ;

[0018] Figure 2 The three-dimensional structure of the vacuum powder mixer according to the embodiment of the present disclosure is shown in FIG. Figure 2 ;

[0019] Figure 3 This is a schematic structural diagram of a vacuum powder mixer (without the stirring barrel) according to an embodiment of the present disclosure;

[0020] Figure 4 It is a schematic diagram of the internal structure of the base according to an embodiment of the present disclosure;

[0021] Icons: 1-base; 11-control panel; 12-main power connector; 2-mixing barrel; 21-barrel bottom; 211-grouting hole; 22-ball valve extension rod; 23-ball valve handle; 3-barrel cover; 4-water inlet junction; 41-water inlet connector; 42-measuring cylinder water inlet solenoid valve; 43-stirring water inlet solenoid valve; 44-cleaning water inlet solenoid valve; 45-measuring cylinder; 5-stirring assembly; 51-stirring shaft; 52-stirring blade; 61-support rod; 62-bearing seat; 63-swing table base; 64-motor mounting plate; 65-drive motor; 71-vacuum pump pipe connector; 72-vacuum filter; 73-exhaust connector; 74-muffler; 75-exhaust valve; 76-connecting pipe; 77-vacuum pump power connector; 78-vacuum pipe connection connector. DETAILED DESCRIPTION

[0022] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0023] Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present disclosure.

[0024] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0026] Example

[0027] like Figure 1-4As shown, this embodiment provides a vacuum powder mixer, including a base 1, a circular groove is provided in the middle of the surface of the base 1, after the mold is placed in the groove, the mixing barrel 2 is covered on the outside of the mold, a barrel cover 3 is provided on the top of the mixing barrel 2, and the barrel cover 3 is rotatably connected with a mixing component 5, a support rod 61 is fixedly connected to the surface of the base 1 by bolts, and a driving component is rotatably connected to the top of the support rod 61, and the driving component is transmission-connected with the mixing component 5, and the mixing component 5 is driven to rotate by the driving component to realize the mixing operation; a water inlet is provided on the top of the barrel cover 3, and a water inlet junction 4 is embedded in the water inlet, and the water inlet junction 4 is connected to the water inlet component through a pipeline. In this embodiment, the bottom output of the water inlet junction 4 The end is embedded in the water inlet, and water is introduced into the mixing barrel 2 through the water inlet component, and added to the mixing barrel 2, and the water inlet junction joint 4 can be directly pulled out, so it is convenient to open the barrel cover 3; a barrel bottom 21 is fixedly installed in the middle of the mixing barrel 2, and a grouting hole 211 is opened in the middle of the barrel bottom 21, and the grouting hole 211 is provided with a ball valve assembly, and the base 1 is connected to a vacuum pipe connecting joint 78, and the vacuum pipe connecting joint 78 is connected to the bottom space of the mixing barrel 2 through the vacuum pipe connecting joint 78. The vacuum pipe connecting joint 78 is connected to a vacuum assembly through a pipeline, and vacuum is drawn by the vacuum assembly to make the inside of the mixing barrel 2 in a vacuum state. After stirring is completed, the ball valve assembly is opened to allow the stirred slurry to fall into the mold at the bottom, and the bubbles in the slurry are removed by continuous vacuuming to achieve a better molding effect.

[0028] Specifically, the water inlet assembly includes a water inlet joint 41, a measuring cylinder water inlet solenoid valve 42, a stirring water inlet solenoid valve 43 and a measuring cylinder 45. The water inlet joint 41 is embedded in the side of the base 1 and is connected to an external water source through a water pipe for water supply. The measuring cylinder water inlet solenoid valve 42 and the stirring water inlet solenoid valve 43 are arranged inside the base 1, and the measuring cylinder 45 is embedded in the surface of the base 1. The position of the base 1 corresponding to the measuring cylinder 45 is embedded with a measuring cylinder 45 water inlet joint 41. The measuring cylinder 45 water inlet joint 41 is a three-way joint. One end of the water inlet joint 41 is connected to the input end of the measuring cylinder water inlet solenoid valve 42 through a pipeline, and the output end of the measuring cylinder water inlet solenoid valve 42 is connected to the input end of the measuring cylinder 45 water inlet joint 41 through a pipeline. The measuring cylinder 45 water inlet joint 41 is connected to one end of the stirring water inlet solenoid valve 43, and the other end of the stirring water inlet solenoid valve 43 is connected to the water inlet junction joint 4 through a pipeline. According to the amount of gypsum, a specified volume of water is introduced into the measuring cylinder 45, the measuring cylinder water inlet solenoid valve 42 is opened, and the stirring water inlet solenoid valve 43 is closed. At this time, the water introduced into the water inlet joint 41 enters the measuring cylinder 45 through the measuring cylinder water inlet solenoid valve 42 and the measuring cylinder 45 water inlet joint 41, and the scale of the measuring cylinder 45 is observed. After adding the specified volume of water, the measuring cylinder water inlet solenoid valve 42 is closed, and the stirring water inlet solenoid valve 43 is opened. The water in the measuring cylinder 45 passes through the stirring water inlet solenoid valve 43 and the water inlet junction 4 and then enters the mixing barrel 2 to mix with the gypsum in the mixing barrel 2.

[0029] Furthermore, a cleaning water inlet solenoid valve 44 is also included, one end of which is connected to the water inlet joint 41 through a pipeline, and the other end of which is connected to the water inlet junction 4 through a pipeline. The water inlet joint 41 is a three-way joint, one end of which is connected to an external water source, one end is connected to the measuring cylinder water inlet solenoid valve 42, and one end is connected to the cleaning water inlet solenoid valve 44. After the work is completed, the measuring cylinder water inlet solenoid valve 42 is closed, and the cleaning water inlet solenoid valve 44 is opened. Clean water passes through the cleaning water inlet solenoid valve 44 and the water inlet junction 4, and is finally added to the mixing barrel 2 to clean the mixing barrel 2.

[0030] Specifically, the vacuum pump assembly includes a vacuum pump pipe joint 71, an exhaust joint 73 and a vacuum filter 72. The vacuum pump pipe joint 71 is embedded in the side of the base 1, one end of the vacuum pump pipe joint 71 is connected to the vacuum pump through a pipe, the other end of the vacuum pump pipe joint 71 is connected to one end of the vacuum filter 72 through an air pipe, the other end of the vacuum filter 72 is connected to the vacuum pipe connecting joint 78 through an air pipe, the exhaust joint 73 is embedded in the side of the base 1, one end of the exhaust joint 73 is connected to a muffler 74, and the other end is connected to the vacuum pipe connecting joint 78 through a pipe. In this embodiment, a three-way joint is connected to the bottom of the vacuum pipe connecting joint 78, and the exhaust joint 73 and the vacuum pump pipe joint 71 are respectively connected through the three-way joint, and an exhaust solenoid valve 75 is arranged between the exhaust joint 73 and the vacuum pipe connecting joint 78. When vacuuming, close the exhaust solenoid valve 75, and use the vacuum pump to vacuumize. The air in the mixing barrel 2 is filtered by the vacuum filter 72 and then sucked away by the vacuum pump, so that a vacuum is formed in the mixing barrel 2. The internal negative pressure sucks the water inlet junction 4 tightly to prevent the water inlet junction 4 from loosening. After the work is completed, turn off the vacuum pump and open the exhaust solenoid valve 75. At this time, the vacuum negative pressure inside the mixing barrel 2 draws the outside air, and enters the mixing barrel 2 after the noise is reduced by the exhaust muffler 74. After the mixing barrel 2 loses the vacuum state, it is convenient to remove the mixing barrel 2.

[0031] Furthermore, a connecting pipe 76 is included, and the connecting pipe 76 is fixedly connected to the side of the mixing barrel 2, and the two ends of the connecting pipe 76 are respectively connected to the upper and lower cavities of the mixing barrel 2. The upper and lower cavities of the mixing barrel 2 are connected through the connecting pipe 76, and the air in the two cavities can be simultaneously extracted during vacuuming, so that both the upper and lower parts are in a vacuum state.

[0032] Specifically, the driving assembly includes a bearing seat 62, a swing table base 63, a motor mounting plate 64 and a driving motor 65. The bearing seat 62 is bolted and fixedly connected to the top of the support rod 61, the swing table base 63 is rotatably connected to the surface of the bearing seat 62, the motor mounting plate 64 is hinged to one end of the swing table base 63, the driving motor 65 is fixedly connected to the surface of the motor mounting plate 64, and the output shaft of the driving motor 65 is transmission-connected to the stirring assembly 5. When adding materials, first flip the motor mounting plate 64 to separate the output shaft of the driving motor 65 from the stirring component 5, then rotate the swing base 63 to make the driving motor 65 leave the top of the stirring component 5, then take out the water inlet junction 4 and open the barrel cover 3, add gypsum powder, and then put the water inlet junction 4 back into the water inlet, rotate the swing base 63 to make the driving motor 65 return to the top of the stirring component 5, flip the motor mounting plate 64 to make the output shaft of the driving motor 65 combine with the stirring component 5, start the driving motor 65 to drive the stirring component 5 to rotate, and stir.

[0033] Specifically, the stirring assembly 5 includes a stirring shaft 51 and a stirring blade 52, wherein the stirring shaft 51 is rotatably connected to the middle of the barrel cover 3 through a bearing, one end of the stirring shaft 51 is drivingly connected to the output shaft of the driving motor 65, and the other end penetrates the barrel cover 3 and extends to the top of the barrel bottom 21, and the stirring blade 52 is integrally formed or bolted to the side of the stirring shaft 51. The driving motor 65 drives the stirring shaft 51 to rotate, which drives the stirring blade 52 to rotate to stir and mix the gypsum powder and water in the mixing barrel 2.

[0034] Specifically, the ball valve assembly includes a ball valve embedded in the grouting hole 211, a ball valve extension rod 22 is fixedly connected to the side of the ball valve, one end of the ball valve extension rod 22 passes through the mixing barrel 2 and extends to the outside of the mixing barrel 2, and the ball valve extension rod 22 is located outside the mixing barrel 2 and is fixedly connected to a ball valve handle 23. Turning the ball valve handle 23 drives the ball valve extension rod 22 to rotate, thereby driving the ball valve to rotate, so as to realize the on-off control of the grouting hole 211 outside the mixing barrel 2.

[0035] Furthermore, a barrel bottom 21 sealing ring is provided at the connection between the mixing barrel 2 and the base 1, and a water inlet sealing ring is provided at the connection between the water inlet junction 4 and the water inlet. The barrel bottom 21 sealing ring and the water inlet sealing ring are sealed to prevent air leakage.

[0036] Furthermore, a control panel 11 is embedded on the side of the base 1, and a power switch, control buttons, etc. are provided on the control panel 11. A vacuum pump power connector 77 and a main power connector 12 are embedded on the side of the base 1, and the vacuum pump power connector 77 and the main power connector 12 are respectively electrically connected to the control panel 11. The external power supply is connected through the main power connector 12 to provide working power for the entire device, and the external vacuum pump is connected through the vacuum pump power connector 77 to provide working power for the vacuum pump. After turning on the power switch, the water inlet, stirring, vacuuming, etc. are controlled by the control buttons.

[0037] The working principle of the utility model is as follows: firstly, the mold is placed in the middle of the base 1, and then the mixing barrel 2 is covered on the outside of the mold, gypsum powder is added to the top of the mixing barrel 2, and then the barrel cover 3 is covered, one end of the water inlet joint 4 is inserted into the water inlet, and then the swing table base 63 is rotated to return the drive motor 65 to the top of the stirring component 5, and the motor mounting plate 64 is turned over to make the output shaft of the drive motor 65 combined with the stirring component 5, and the measuring cylinder water inlet solenoid valve 42 is controlled to open by the control button, and water is introduced into the measuring cylinder 45 through the water inlet joint 41, and the scale of the measuring cylinder 45 is observed, and after adding a certain amount of water, the measuring cylinder water inlet solenoid valve 42 is closed, and the stirring water inlet solenoid valve 43 is opened, and the water in the measuring cylinder 45 passes through the stirring water inlet solenoid valve 43 and the water inlet joint 4 and then enters the mixing barrel 2, and at the same time, the vacuum pump is turned on to evacuate the mixing cylinder. Negative pressure is formed in the mixing barrel 2, the water inlet junction 4 is sucked tightly, the drive motor 65 is started, the stirring shaft 51 is driven to rotate, and the stirring blade 52 is driven to rotate to stir and mix the gypsum powder and water. After the stirring and converging are completed, the drive motor 65 is turned off, the ball valve handle 23 is manually turned, the grouting hole 211 is opened, and the mixed slurry falls into the mold placed at the bottom through the grouting hole 211, and condenses in a continuously vacuumed environment. After the condensation is completed, the motor mounting plate 64 is first turned over to separate the output shaft of the drive motor 65 from the stirring assembly 5, and then the swing base 63 is rotated to make the drive motor 65 leave the top of the stirring assembly 5, the vacuum pump is turned off, and the exhaust solenoid valve 75 is opened. The outside air enters from the exhaust joint 73. After the negative pressure inside the mixing barrel 2 is lost, the water inlet junction 4 is removed, and the mixing barrel 2 can be removed at this time to take out the mold. When cleaning, close the measuring cylinder water inlet solenoid valve 42, open the cleaning water inlet solenoid valve 44, directly introduce clean water into the mixing barrel 2, and stir with the stirring blade 52 to clean.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A vacuum powder mixer, characterized in that: include: A base, a mixing barrel is detachably connected to the surface of the base, a barrel cover is provided at the top of the mixing barrel, a mixing assembly is rotatably connected to the barrel cover, a support rod is fixedly connected to the surface of the base, a driving assembly is rotatably connected to the top of the support rod, the driving assembly is transmission-connected to the mixing assembly, a water inlet is provided at the top of the barrel cover, a water inlet junction is embedded in the water inlet, the water inlet junction is connected to the water inlet assembly through a pipeline, a barrel bottom is provided in the middle of the mixing barrel, a grouting hole is provided in the middle of the barrel bottom, a ball valve assembly is provided in the grouting hole, a vacuum pipe connecting joint is provided on the base, and the vacuum pipe connecting joint is connected to the vacuum assembly through a pipeline.

2. A vacuum powder mixer according to claim 1, characterized in that: The water inlet assembly includes a water inlet joint, a measuring cylinder water inlet solenoid valve, a stirring water inlet solenoid valve and a measuring cylinder. The water inlet joint is embedded in the side of the base, the measuring cylinder water inlet solenoid valve and the stirring water inlet solenoid valve are arranged inside the base, the measuring cylinder is embedded in the surface of the base, and a measuring cylinder water inlet joint is embedded in the position corresponding to the base and the measuring cylinder. One end of the water inlet joint is connected to the input end of the measuring cylinder water inlet solenoid valve through a pipeline, the output end of the measuring cylinder water inlet solenoid valve is connected to the input end of the measuring cylinder water inlet joint through a pipeline, the measuring cylinder water inlet joint is connected to one end of the stirring water inlet solenoid valve, and the other end of the stirring water inlet solenoid valve is connected to the water inlet junction joint through a pipeline.

3. A vacuum powder mixer according to claim 2, characterized in that: It also includes a cleaning water inlet solenoid valve, one end of which is connected to the water inlet joint through a pipeline, and the other end of which is connected to the water inlet junction through a pipeline.

4. A vacuum powder mixer according to claim 1, characterized in that: The vacuum pump assembly includes a vacuum pump pipe joint, an exhaust joint and a vacuum filter. The vacuum pump pipe joint is embedded in the side of the base, the vacuum pump pipe joint is connected to one end of the vacuum filter through an air pipe, the other end of the vacuum filter is connected to the vacuum pipe connecting joint through an air pipe, the exhaust joint is embedded in the side of the base, one end of the exhaust joint is connected to a muffler, and the other end is connected to the vacuum pipe connecting joint through a pipe, and an exhaust solenoid valve is arranged between the exhaust joint and the vacuum pipe connecting joint.

5. A vacuum powder mixer according to claim 4, characterized in that: The mixing barrel further comprises a connecting pipe, wherein the connecting pipe is fixedly connected to the side of the mixing barrel, and the two ends of the connecting pipe are respectively connected to the upper and lower cavities of the mixing barrel.

6. A vacuum powder mixer according to claim 1, characterized in that: The driving assembly includes a bearing seat, a swing table base, a motor mounting plate and a driving motor. The bearing seat is fixedly connected to the top end of the support rod, the swing table base is rotatably connected to the surface of the bearing seat, the motor mounting plate is hinged to one end of the swing table base, the driving motor is fixedly connected to the surface of the motor mounting plate, and the output shaft of the driving motor is drivingly connected to the stirring assembly.

7. A vacuum powder mixer according to claim 6, characterized in that: The stirring assembly includes a stirring shaft and a stirring blade. The stirring shaft is rotatably connected to the middle part of the barrel cover. One end of the stirring shaft is transmission-connected to the output shaft of the drive motor, and the other end passes through the barrel cover and extends to the top of the barrel bottom. The stirring blade is fixedly connected to the side of the stirring shaft.

8. A vacuum powder mixer according to claim 1, characterized in that: The ball valve assembly includes a ball valve embedded in the grouting hole, a ball valve extension rod is fixedly connected to the side of the ball valve, one end of the ball valve extension rod passes through the mixing barrel and extends to the outside of the mixing barrel, and the ball valve extension rod is fixedly connected to the ball valve handle on the outside of the mixing barrel.

9. A vacuum powder mixer according to claim 1, characterized in that: A barrel bottom sealing ring is arranged at the connection between the mixing barrel and the base, and a water inlet sealing ring is arranged at the connection between the water inlet junction and the water inlet.

10. A vacuum powder mixer according to claim 1, characterized in that: A control panel is embedded on the side of the base, and a vacuum pump power connector and a main power connector are embedded on the side of the base. The vacuum pump power connector and the main power connector are electrically connected to the control panel respectively.

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