A vacuum degassing machine with self-checking airtightness

Abstract

The present invention discloses a vacuum defoaming machine with self-checking airtightness, which relates to the technical field of defoaming machines and includes a chassis, a centrifugal unit, a defoaming unit and a detection unit. The chassis is used for installing and fixing the centrifugal unit, the defoaming unit and the detection unit. The centrifugal unit is used for rotating the object to be processed. The defoaming unit is used for quickly removing bubbles from the object to be processed. The detection unit is used for detecting the vacuum seal inside the chassis. When the object to be processed is placed in the chassis and the detection unit is started to evacuate the inside of the chassis to a vacuum, the object to be processed is rotated by the centrifugal unit, and then the defoaming unit is started to quickly remove the bubbles in the object to be processed, thereby improving the defoaming efficiency of the vacuum defoaming machine. While the detection unit detects the vacuum degree inside the chassis, it maintains the pressure in case of air leakage, so as to avoid affecting the defoaming effect.

Description

Technical Field

[0001] The present invention relates to the technical field of degassing machines, and specifically to a vacuum degassing machine with self-checking airtightness. Background Art

[0002] In many industrial production and scientific research fields, such as electronic packaging, chemical material preparation, coating production, etc., removing bubbles in liquids is a key and challenging task.

[0003] Traditional vacuum degassing machines often adopt fixed degassing procedures. For high-viscosity liquids, the moving resistance of bubbles in them is relatively large, and it is difficult to quickly separate bubbles from the liquid only by conventional vacuum treatment. In a vacuum environment, although bubbles have a natural upward trend, for some bubbles that aggregate into larger clusters, their moving speed is slow, affecting the overall defoaming efficiency. Most existing vacuum degassing machines lack effective means to promote the separation and movement of these bubbles.

[0004] At the same time, attention also needs to be paid to the airtightness problem of existing vacuum degassing machines. If the seal is poor, external air will continuously penetrate into the equipment interior, resulting in the inability to stably maintain the vacuum degree, which will not only seriously affect the defoaming effect, but also increase the load on the vacuum pump and reduce its service life.

[0005] Therefore, the airtightness and defoaming efficiency of vacuum degassing machines are the key points that need to be solved and optimized at present. Summary of the Invention

[0006] The purpose of the present invention is to provide a vacuum degassing machine with self-checking airtightness to solve the problems raised in the prior art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] The vacuum degassing machine with self-checking airtightness includes a chassis, a centrifugal unit, a degassing unit, and a detection unit. The chassis is placed on a horizontal foundation. A transparent observation window is opened on the upper surface of the chassis shell, and a control panel is arranged on the chassis shell. The centrifugal unit is fixedly installed inside the chassis, the degassing unit is fixedly installed inside the centrifugal unit, the degassing unit is used for quickly removing bubbles inside the object to be processed, and the detection unit is used for detecting the vacuum degree inside the chassis, and the detection unit is fixedly installed inside the chassis.

[0009] The chassis is used to install and fix the centrifugal unit, the degassing unit and the detection unit. The centrifugal unit is used for the rotation of the object to be processed. The degassing unit is used for the rapid bubble removal of the object to be processed. The detection unit is used for the vacuum tightness detection inside the chassis. When the object to be processed is placed in the chassis and the detection unit is started to evacuate the inside of the chassis to a vacuum, the object to be processed is rotated by the centrifugal unit, and then the degassing unit is started to rapidly remove the bubbles in the object to be processed, thereby improving the degassing efficiency of the vacuum degassing machine. The detection unit detects the vacuum degree inside the chassis and maintains the pressure in case of air leakage, so as to avoid affecting the defoaming effect.

[0010] Further, the centrifugal unit includes a drive motor, a holding cylinder, a turntable, a straight rod, a connecting sleeve and a mixing cylinder. The fixed end of the drive motor is fixedly installed on the inner surface of one end of the chassis close to the horizontal base. The output end of the drive motor penetrates through the holding cylinder and is fixedly connected to the turntable. The holding cylinder is fixedly installed in the middle of the output end of the drive motor. A groove is formed at one end of the turntable away from the horizontal base. The straight rod is fixedly installed on the inner wall of the groove of the turntable. One end of the connecting sleeve is fixedly connected to the mixing cylinder, and the other end is rotatably installed on the straight rod. The mixing cylinder is fixedly connected to the degassing unit.

[0011] When the liquid to be processed is placed in the mixing cylinder, the staff rotates the connecting sleeve on the straight rod to adjust the mixing cylinder to be at an angle of 45 degrees with the horizontal axis, and then starts the drive motor to drive the turntable to rotate clockwise. Thus, the mixing cylinder is driven to rotate under the transmission of the connecting sleeve, and under the action of centrifugal force, the liquid to be processed flows counterclockwise in the mixing cylinder, breaking the stable state of the liquid to be processed, and thus performing the degassing treatment.

[0012] Further, the defoaming unit includes a forward and reverse motor, a mounting box, a driving gear, a driven gear, a rotating column, a swing rod, a conductive plate, a compression spring, a fixing plate, a magnet, a magnetic ring, a stirring plate, a torsion spring, a memory spring hose, a counterweight, a coil, a first electric telescopic rod, a buffer spring, a bubble-breaking plate, a pulling rope, a connecting pipe and a second electric telescopic rod. The fixed end of the forward and reverse motor is fixedly installed on the outer surface of the connecting pipe. The output end of the forward and reverse motor is connected to the fixed end of the first electric telescopic rod. A magnet is fixedly installed at the end of the output end of the first electric telescopic rod. The first electric telescopic rod is installed inside the connecting pipe. One end of the connecting pipe is fixedly connected to the fixed end of the forward and reverse motor, and the other end is fixedly connected to the inner surface of the stirring cylinder. The mounting box is fixedly installed at the output end of the forward and reverse motor. The driving gear is fixedly installed on the outer surface of the fixed end of the first electric telescopic rod. The driving gear is meshed with the driven gear. One end of the rotating column is fixedly connected to the driven gear, and the other end is rotatably connected to the fixing plate. The swing rod is fixedly installed on the outer surface of the rotating column. The swing rod is electrically connected to an external controller. The conductive plate is electrically connected to the memory spring hose. The conductive plate is slidably installed in an arc-shaped groove formed in the fixing plate. The compression spring is installed in the arc-shaped groove of the fixing plate. The fixing plate is fixedly installed on the inner surface of the mounting box near one end of the horizontal base. The magnetic ring is slidably installed on the outer surface of the connecting pipe. The magnetic ring is connected to the stirring plate through a torsion spring. The magnetic ring is electrically connected to the second electric telescopic rod. One end of the memory spring hose is fixedly installed on the inner surface of the stirring plate near one end of the connecting pipe, and the other end is fixedly connected to the counterweight. A memory spring is arranged inside the memory spring hose. The coil is uniformly wound on the outer surface of the connecting pipe. The fixed end of the second electric telescopic rod is obliquely fixedly installed on the outer surface of the connecting pipe. The telescopic end of the second electric telescopic rod is fixedly connected to the bubble-breaking plate. Both ends of the buffer spring are fixedly connected to the bubble-breaking plate. One end of the pulling rope passes through the mounting box and is fixedly connected to the rotating column, and the other end is fixedly connected to the end of the stirring plate. The magnet and the magnetic ring have opposite magnetic polarities.

[0013] The forward and reverse motor is controlled by a controller to start, driving the driving gear to rotate counterclockwise at a certain speed for one circle, thereby driving the driven gear to rotate one circle. During this process, on the one hand, the forward and reverse motor drives the first electric telescopic rod to rotate. While the controller controls the forward rotation of the forward and reverse motor, it controls the contraction of the first electric telescopic rod, thereby driving the magnet to move upward. Under the action of magnetic force, it drives the magnetic ring to slide upward synchronously along the connecting pipe. The magnetic ring drives the stirring plate to rotate upward counterclockwise synchronously while the effective number of turns of the coil gradually decreases and the current increases. At this time, the current in the coil is transmitted to the second electric telescopic rod through the magnetic ring, thereby causing the second electric telescopic rod to extend, stretching the buffer spring and pushing the bubble-breaking plate to move towards the inner wall of the stirring cylinder, dispersing the bubbles rising to the liquid surface in the horizontal direction, preventing the bubble clusters from aggregating and re-entering the liquid, affecting the defoaming effect, and at the same time squeezing and bursting the bubbles overflowing on the liquid surface, thereby improving the bubble removal efficiency of the device. On the other hand, when the driven gear rotates, the pull rope is wound up under the action of the rotating column, thereby pulling the stirring plate to fold upward by compressing the torsion spring. At the same time, the rotating column drives the swing rod to contact the conductive plate during the rotation process. At this time, the current transmitted by the controller to the swing rod is transmitted to the memory spring hose through the conductive plate. The memory spring receives the current and contracts at this time, thereby pulling the counterweight block to move towards the connecting pipe. At this time, the rotating and upwardly folded stirring plate uniformly stirs the liquid to be treated while rotating in the same direction as the rotation direction of the liquid to be treated, forming a spiral upward flow path in the rotating liquid, thereby quickly bringing the bubbles in the liquid to the liquid surface, cooperating with the bubble-breaking plate to quickly remove the bubbles, and improving the defoaming efficiency of the device.

[0014] When the controller controls the forward and reverse motor to rotate clockwise slowly and controls the first electric telescopic rod to extend, at this time, the magnet drives the magnetic ring to move downward while driving the stirring plate to rotate slowly downward. At this time, the clockwise rotation of the forward and reverse motor drives the rotating column to rotate in the reverse direction under the transmission of the driving gear and the driven gear, thereby releasing the winding of the pull rope while the swing rod rotates in the reverse direction and the compression spring resets. The swing rod continues to rotate and no longer contacts the conductive plate, so that the memory spring hose stops receiving current and extends to push the counterweight block to reset, cooperating with the restoring force of the torsion spring itself to make the stirring plate return to the horizontal state, scraping the bubbles aggregated on the inner wall of the stirring cylinder while reducing the viscosity of the liquid, improving the overflow speed of the bubbles in the liquid. When the magnetic ring moves downward, at this time, the effective number of turns of the coil increases, the resistance increases, and the current decreases. At this time, the second electric telescopic rod drives the bubble-breaking plates to approach each other under the action of the restoring force of the buffer spring itself, and scrapes and bursts the bubbles overflowing from the inclined liquid surface again, thereby jointly improving the bubble removal efficiency.

[0015] Further, the detection unit includes an air pump, a sealing plate, a sliding piece, a guide post and a displacement sensor. The air pump is fixedly installed on the outer surface of the chassis. The sealing plate is provided with an exhaust port. The sealing plate is fixedly installed on the outer surface of the end of the chassis away from the horizontal base. The displacement sensor is fixedly installed inside the sealing plate. The sliding piece is slidably installed on the guide post. Both ends of the guide post are fixedly connected to the displacement sensor.

[0016] After the air inside the chassis is pumped out by the air pump, the chassis reaches a preset pressure value and a vacuum state is formed inside. If there is a problem with poor sealing during the defoaming process, when external gas enters the chassis from the sealing plate, the pressure gradually increases, pushing the sliding piece to move on the guide post. At this time, the displacement sensor detects a change in the position of the sliding piece, and thus feeds back an electrical signal to the controller. The controller controls the air pump to start, continuously pumps the gas inside the chassis, and maintains the pressure inside the chassis, so as to avoid the influence of poor sealing on the defoaming effect.

[0017] Further, the tooth ratio of the driving gear to the driven gear is 1:5.

[0018] To facilitate the slow winding of the pull rope on the rotating column, avoid the winding speed being too fast, which may cause the folding angle of the stirring plate to exceed the bearing capacity of the torsion spring, resulting in deformation of the torsion spring and inability to recover, thus affecting the defoaming effect.

[0019] Further, the end of the coil close to the installation box is the current input end.

[0020] In order to reduce the effective number of turns of the coil and increase the current when the magnetic ring moves upward, so that the electric telescopic rod II drives the bubble-breaking plate to extend to both sides, dispersing the bubbles rising to the liquid surface in the horizontal direction, avoiding the re-merging of the bubble clusters and re-entering the liquid, which affects the defoaming effect.

[0021] Further, there are two bubble-breaking plates, and the two bubble-breaking plates have the same inclination angle as the stirring cylinder.

[0022] In order to keep the bubble-breaking plate horizontal with the inclined liquid surface inside the stirring cylinder, so as to more conveniently squeeze and break the bubble clusters overflowing on the liquid surface and improve the defoaming efficiency.

[0023] Further, the counterclockwise rotation speed of the forward and reverse motor is greater than the clockwise rotation speed.

[0024] To make the forward and reverse motor rotate counterclockwise, under the driving action of the electric telescopic rod 1 and the magnet, the stirring plate rotates synchronously counterclockwise, in the same direction as the liquid's self-rotation, increasing the liquid's self-rotation speed, increasing the shear force inside the liquid, which helps to tear larger bubbles into smaller bubbles. The faster self-rotation speed will enhance the liquid convection, making the mixing of the liquid in the axial direction more sufficient. When the forward and reverse motor rotates clockwise to drive the stirring plate to rotate slowly, it reduces the influence on the liquid's counterclockwise rotation.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. In the degassing unit of the present invention, while the magnetic ring drives the stirring plate to rotate synchronously upward counterclockwise, the effective number of turns of the coil gradually decreases, the current increases, and the current is transmitted to the electric telescopic rod 2 through the magnetic ring, pushing the bubble-breaking plate to move towards the inner wall of the stirring cylinder, dispersing the bubbles rising to the liquid surface in the horizontal direction, preventing the bubble clusters from aggregating and re-entering the liquid, which affects the degassing effect. At the same time, it squeezes and breaks the bubbles overflowing on the liquid surface, thereby improving the bubble removal efficiency of the device.

[0027] 2. In the present invention, the rotating column rotates to wind up the pull rope, thereby pulling the stirring plate to compress the torsion spring and turn up. At the same time, during the rotation of the rotating column, the swing rod is driven to contact the conductive plate. At this time, the current sent by the controller to the swing rod is transmitted to the memory spring hose through the conductive plate. The memory spring receives the current and contracts at this time, thereby pulling the counterweight towards the connecting pipe. At this time, the rotating and upwardly turned stirring plate evenly stirs the liquid to be treated while being consistent with the self-rotation direction of the liquid to be treated, forming a spiral upward flow path in the self-rotating liquid, thereby quickly bringing the bubbles in the liquid to the liquid surface, cooperating with the bubble-breaking plate to quickly remove the bubbles, and improving the degassing efficiency of the device.

[0028] 3. In the present invention, when the rotating column rotates in the reverse direction, the pull rope is unwound while the swing rod rotates in the reverse direction and the compressed spring resets. The swing rod continues to rotate and no longer contacts the conductive plate, so the memory spring hose stops receiving the current and elongates to push the counterweight to reset. Cooperating with the restoring force of the torsion spring itself, the stirring plate returns to the horizontal state, scraping the bubbles adhering to and aggregating on the inner wall of the stirring cylinder while reducing the viscosity of the liquid, increasing the overflow speed of the bubbles in the liquid. When the magnetic ring moves downward, at this time, the effective number of turns of the coil increases, the resistance increases, and the current decreases. Under the action of the restoring force of the buffer spring itself, the bubble-breaking plates are driven to approach each other, scraping and breaking the bubbles overflowing from the inclined liquid surface, thereby jointly improving the bubble removal efficiency.

[0029] 4. In the present invention, the displacement sensor detects the change in the position of the sliding plate, thereby feeding back an electrical signal to the controller. The controller controls the air pump to start, continuously extract the gas inside the chassis, and maintain the pressure inside the chassis, so as to avoid the influence of poor sealing on the defoaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall external structure of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0031] Figure 2 is a schematic diagram of the top view structure of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0032] Figure 3 is a schematic diagram of the installation positions of the components of the centrifugal unit of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0033] Figure 4 is a schematic diagram of the external structure of the mixing drum and the connecting sleeve of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0034] Figure 5 is a schematic diagram of the installation positions of the turntable and the straight rod of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0035] Figure 6 is a schematic diagram of the top view structure of the defoaming unit of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0036] Figure 7 is a schematic diagram of the overall external structure of the defoaming unit of a vacuum defoaming machine with self-checking sealability according to the present invention;

[0037] Figure 8 is a vacuum defoaming machine with self-checking sealability according to the present invention Figure 6 Schematic diagram of the sectional view at A-A;

[0038] Figure 9 is a vacuum defoaming machine with self-checking sealability according to the present invention Figure 7 Schematic diagram of the enlarged partial view at B;

[0039] Figure 10 is a vacuum defoaming machine with self-checking sealability according to the present invention Figure 8 Schematic diagram of the enlarged partial view at C;

[0040] Figure 11 is a vacuum defoaming machine with self-checking sealability according to the present invention Figure 8 Schematic diagram of the enlarged partial view at D;

[0041] Figure 12Schematic diagram of the installation positions of the conductive block, compression spring, swing rod and rotating column of a vacuum defoaming machine with self-checking airtightness according to the present invention;

[0042] Figure 13 Schematic diagram of the internal structure of the stirring plate of a vacuum defoaming machine with self-checking airtightness according to the present invention;

[0043] Figure 14 Schematic diagram of the internal structure of the sealing plate of a vacuum defoaming machine with self-checking airtightness according to the present invention.

[0044] In the figure: 1, chassis; 2, centrifugal unit; 21, drive motor; 22, holding cylinder; 23, turntable; 24, straight rod; 25, connecting sleeve; 26, stirring cylinder; 3, defoaming unit; 31, forward and reverse motor; 32, installation box; 33, driving gear; 34, driven gear; 35, rotating column; 36, swing rod; 37, conductive plate; 38, compression spring; 39, fixing plate; 310, magnet; 311, magnetic ring; 312, stirring plate; 313, torsion spring; 314, memory spring hose; 315, counterweight; 316, coil; 317, electric telescopic rod 1; 318, buffer spring; 319, bubble-breaking plate; 320, pull rope; 321, connecting pipe; 322, electric telescopic rod 2; 4, detection unit; 41, air pump; 42, sealing plate; 43, sliding piece; 44, guide post; 45, displacement sensor. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] Embodiment: As Figures 1 - 14 shown, the present invention provides a technical solution:

[0047] As Figure 1 , 2 shown, a vacuum defoaming machine with self-checking airtightness includes a chassis 1, a centrifugal unit 2, a defoaming unit 3 and a detection unit 4. The chassis 1 is placed on a horizontal foundation. A transparent observation window is opened on the upper surface of the outer shell of the chassis 1, and a control panel is arranged on the outer shell of the chassis 1. The centrifugal unit 2 is fixedly installed inside the chassis 1, and the defoaming unit 3 is fixedly installed inside the centrifugal unit 2. The defoaming unit 3 is used for quickly removing the bubbles inside the object to be processed, and the detection unit 4 is used for detecting the vacuum degree inside the chassis 1. The detection unit 4 is fixedly installed inside the chassis 1.

[0048] The chassis 1 is used to install and fix the centrifugal unit 2, the degassing unit 3 and the detection unit 4. The centrifugal unit 2 is used for the rotation of the object to be processed. The degassing unit 3 is used for the rapid bubble removal of the object to be processed. The detection unit 4 is used for the internal vacuum seal detection of the chassis 1. When the object to be processed is placed in the chassis 1 and the detection unit 4 is started to evacuate the inside of the chassis 1 to a vacuum, the object to be processed is rotated by the centrifugal unit 2, and then the degassing unit 3 is started to rapidly remove the bubbles in the object to be processed, thereby improving the degassing efficiency of the vacuum degassing machine. While the detection unit 4 detects the vacuum degree inside the chassis 1, it maintains the pressure in case of air leakage to avoid affecting the defoaming effect.

[0049] As Figure 3 、 4 、5, and 6 show, the centrifugal unit 2 includes a drive motor 21, a holding cylinder 22, a turntable 23, a straight rod 24, a connecting sleeve 25, and a mixing cylinder 26. The fixed end of the drive motor 21 is fixedly installed on the inner surface of the chassis 1 near one end of the horizontal base. The output end of the drive motor 21 passes through the holding cylinder 22 and is fixedly connected to the turntable 23. The holding cylinder 22 is fixedly installed in the middle of the output end of the drive motor 21. A groove is provided at one end of the turntable 23 away from the horizontal base. The straight rod 24 is fixedly installed on the inner wall of the groove of the turntable 23. One end of the connecting sleeve 25 is fixedly connected to the mixing cylinder 26, and the other end is rotatably installed on the straight rod 24. The mixing cylinder 26 is fixedly connected to the degassing unit 3.

[0050] When the liquid to be processed is placed in the mixing cylinder 26, the staff rotates the connecting sleeve 25 on the straight rod 24 to adjust the mixing cylinder 26 to be at an angle of 45 degrees with the horizontal axis. Then, by controlling the drive motor 21 to start, the turntable 23 is driven to rotate in the clockwise direction. Thus, under the transmission of the connecting sleeve 25, the mixing cylinder 26 is driven to rotate. Under the action of centrifugal force, the liquid to be processed flows counterclockwise in the mixing cylinder 26, breaking the stable state of the liquid to be processed, and thus performing the degassing process.

[0051] As Figure 6 、 7As shown in Figures 8, 9, 10, 11, 12, and 13, the degassing unit 3 includes a forward and reverse motor 31, a mounting box 32, a driving gear 33, a driven gear 34, a rotating column 35, a swing rod 36, a conductive plate 37, a compression spring 38, a fixing plate 39, a magnet 310, a magnetic ring 311, a stirring plate 312, a torsion spring 313, a memory spring hose 314, a counterweight 315, a coil 316, a first electric telescopic rod 317, a buffer spring 318, a bubble-breaking plate 319, a pull rope 320, a connecting pipe 321, and a second electric telescopic rod 322. The fixed end of the forward and reverse motor 31 is fixedly installed on the outer surface of the connecting pipe 321. The output end of the forward and reverse motor 31 is connected to the fixed end of the first electric telescopic rod 317. The end of the output end of the first electric telescopic rod 317 is fixedly installed with a magnet 310. The first electric telescopic rod 317 is installed inside the connecting pipe 321. One end of the connecting pipe 321 is fixedly connected to the fixed end of the forward and reverse motor 31, and the other end of the connecting pipe 321 is fixedly connected to the inner surface of the stirring cylinder 26. The mounting box 32 is fixedly installed at the output end of the forward and reverse motor 31. The driving gear 33 is fixedly installed on the outer surface of the fixed end of the first electric telescopic rod 317. The driving gear 33 is meshed with the driven gear 34. One end of the rotating column 35 is fixedly connected to the driven gear 34, and the other end is rotatably connected to the fixing plate 39. The swing rod 36 is fixedly installed on the outer surface of the rotating column 35. The swing rod 36 is electrically connected to an external controller. The conductive plate 37 is electrically connected to the memory spring hose 314. The conductive plate 37 is slidably installed in an arc-shaped groove formed in the fixing plate 39. The compression spring 38 is installed in the arc-shaped groove of the fixing plate 39. The fixing plate 39 is fixedly installed on the inner surface of the mounting box 32 near one end of the horizontal base. The magnetic ring 311 is slidably installed on the outer surface of the connecting pipe 321. The magnetic ring 311 is connected to the stirring plate 312 through a torsion spring 313. The magnetic ring 311 is electrically connected to the second electric telescopic rod 322. One end of the memory spring hose 314 is fixedly installed on the inner surface of the stirring plate 312 near one end of the connecting pipe 321, and the other end is fixedly connected to the counterweight 315. A memory spring is provided inside the memory spring hose 314. The coil 316 is evenly wound around the outer surface of the connecting pipe 321. The fixed end of the second electric telescopic rod 322 is obliquely fixedly installed on the outer surface of the connecting pipe 321. The telescopic end of the second electric telescopic rod 322 is fixedly connected to the bubble-breaking plate 319. Both ends of the buffer spring 318 are fixedly connected to the bubble-breaking plate 319. One end of the pull rope 320 passes through the mounting box 32 and is fixedly connected to the rotating column 35, and the other end is fixedly connected to the end of the stirring plate 312. The magnet 310 and the magnetic ring 311 have opposite magnetic polarities.

[0052] The forward and reverse motor 31 is controlled by the controller to start, driving the driving gear 33 to rotate counterclockwise at a certain speed for one circle, thereby driving the driven gear 34 to rotate one circle. During this process, on the one hand, the forward and reverse motor 31 drives the electric telescopic rod 317 to rotate. While the controller controls the forward rotation of the forward and reverse motor 31, it controls the contraction of the electric telescopic rod 317, thereby driving the magnet 310 to move upward. Under the action of magnetic force, it drives the magnetic ring 311 to slide upward synchronously along the connecting pipe 321. The magnetic ring 311 drives the stirring plate 312 to rotate upward counterclockwise synchronously while the effective number of turns of the coil 316 gradually decreases and the current increases. At this time, the current in the coil 316 is transmitted to the electric telescopic rod 322 through the magnetic ring 311, thereby causing the electric telescopic rod 322 to extend, stretching the buffer spring 318 and pushing the bubble-breaking plate 319 to move towards the inner wall of the stirring cylinder 26, dispersing the bubbles rising to the liquid surface in the horizontal direction, preventing the bubble clusters from aggregating and re-entering the liquid, affecting the defoaming effect, and at the same time squeezing and breaking the bubbles overflowing on the liquid surface, thereby improving the bubble removal efficiency of the device. On the other hand, when the driven gear 34 rotates, the pull rope 320 is wound up under the action of the rotating column 35, thereby pulling the stirring plate 312 to fold upward by compressing the torsion spring 313. At the same time, during the rotation of the rotating column 35, it drives the swing rod 36 to contact the conductive plate 37. At this time, the current transmitted by the controller to the swing rod 36 is transmitted to the memory spring hose 314 through the conductive plate 37. The memory spring receives the current and contracts at this time, thereby pulling the counterweight 315 to move towards the connecting pipe 321. At this time, the rotating and upwardly folded stirring plate 312 uniformly stirs the liquid to be treated while rotating in the same direction as the self-rotation direction of the liquid to be treated, forming a spiral upward flow path in the self-rotating liquid, thereby quickly bringing the bubbles in the liquid to the liquid surface, cooperating with the bubble-breaking plate 319 to quickly remove the bubbles, and improving the defoaming efficiency of the device.

[0053] While the controller controls the forward and reverse motor 31 to rotate clockwise slowly, it controls the electric telescopic rod 1 to extend. At this time, the magnet 310 drives the magnetic ring 311 to move downward and drives the stirring plate 312 to rotate slowly downward. At this time, the clockwise rotation of the forward and reverse motor 31, under the transmission of the driving gear 33 and the driven gear 34, drives the rotating column 35 to rotate in the reverse direction, so that while the pulling rope 320 is untangled, the swing rod 36 rotates in the reverse direction and compresses the spring 38 to reset. The swing rod 36 continues to rotate and no longer contacts the conductive plate 37, so that the memory spring hose 314 stops receiving current, so as to extend and push the counterweight 315 to reset, and cooperate with the restoring force of the torsion spring 313 itself to make the stirring plate 312 return to the horizontal state, scraping the bubbles accumulated on the inner wall of the stirring cylinder 26 while reducing the viscosity of the liquid, improving the overflow speed of the bubbles in the liquid. When the magnetic ring 311 moves downward, at this time, the effective number of turns of the coil 316 increases, the resistance becomes larger, and the current becomes smaller. At this time, the electric telescopic rod 2 drives the bubble-breaking plates 319 to approach each other under the action of the restoring force of the buffer spring 318, and scrapes the bubbles overflowing from the inclined liquid surface again, thus jointly improving the bubble removal efficiency.

[0054] As Figure 3 , 14 shown, the detection unit 4 includes an air pump 41, a sealing plate 42, a sliding plate 43, a guide post 44 and a displacement sensor 45. The air pump 41 is fixedly installed on the outer surface of the chassis 1. The sealing plate 42 is provided with an exhaust port. The sealing plate 42 is fixedly installed on the outer surface of one end of the chassis 1 away from the horizontal base. The displacement sensor 45 is fixedly installed inside the sealing plate 42. The sliding plate 43 is slidably installed on the guide post 44. Displacement sensors 45 are fixedly connected to both ends of the guide post 44.

[0055] After the air inside the chassis 1 is pumped out by the air pump 41, the chassis 1 reaches the preset pressure value and forms a vacuum state inside. If there is a problem with poor sealing during the defoaming process, when external gas enters the chassis 1 from the sealing plate 42, the pressure gradually increases, pushing the sliding plate 43 to move on the guide post 44. At this time, the displacement sensor 45 detects that the position of the sliding plate 43 has changed, and thus feeds back an electrical signal to the controller. The controller controls the air pump 41 to start and continuously pumps the gas inside the chassis 1 to maintain the pressure inside the chassis 1, so as to avoid the influence of poor sealing on the defoaming effect.

[0056] As Figure 11 shown, the tooth ratio of the driving gear 33 to the driven gear 34 is 1:5.

[0057] To facilitate the slow winding of the pulling rope 320 on the rotating column 35 and avoid the winding speed being too fast, resulting in the folding angle of the stirring plate 312 exceeding the bearing capacity of the torsion spring 313, so that the torsion spring 313 is deformed and cannot be restored, thus affecting the defoaming effect.

[0058] As Figure 7 、 8 shown, one end of the coil 316 close to the mounting box 32 is the current input end.

[0059] In order to reduce the effective number of turns of the coil 316 during the upward movement of the magnetic ring 311, increase the current, so that the electric telescopic rod two 322 drives the bubble-breaking plate 319 to extend to both sides, dispersing the bubbles rising to the liquid surface in the horizontal direction, preventing the bubble clusters from recombining and re-entering the liquid, which affects the defoaming effect.

[0060] As Figure 7 、 8 shown, there are two bubble-breaking plates 319, and the two bubble-breaking plates 319 have the same inclination angle as the stirring cylinder 26.

[0061] In order to keep the bubble-breaking plate 319 horizontal with the inclined liquid surface in the stirring cylinder 26, so as to more conveniently squeeze and break the bubble clusters overflowing on the liquid surface and improve the defoaming efficiency.

[0062] As Figure 7 、 8 shown, the counterclockwise rotation speed of the forward and reverse motor 31 is greater than the clockwise rotation speed.

[0063] In order to make the forward and reverse motor 31 rotate counterclockwise, under the driving action of the electric telescopic rod one 317 and the magnet 310, the stirring plate 312 rotates synchronously counterclockwise, in the same direction as the liquid's self-rotation, increasing the liquid's self-rotation speed, increasing the shear force inside the liquid, which helps to tear larger bubbles into smaller bubbles, and the faster self-rotation speed will enhance the liquid's convection, making the mixing of the liquid in the axial direction more sufficient. When the forward and reverse motor 31 rotates clockwise to drive the stirring plate 312 to rotate slowly, it reduces the influence on the counterclockwise rotation of the liquid.

[0064] The working principle of the present invention:

[0065] After the liquid to be treated is placed in the stirring cylinder 26, the staff rotates the connecting sleeve 25 on the straight rod 24 to adjust the stirring cylinder 26 to be at an angle of 45 degrees with the horizontal axis. Then, by controlling the driving motor 21 to start and drive the turntable 23 to rotate in the clockwise direction, the stirring cylinder 26 is driven to rotate under the driving action of the connecting sleeve 25. Under the action of centrifugal force, the liquid to be treated flows counterclockwise in the stirring cylinder 26, breaking the stable state of the liquid to be treated, and thus performing defoaming treatment.

[0066] The forward and reverse motor 31 is controlled by the controller to start, driving the driving gear 33 to rotate counterclockwise for one circle at a certain speed, thereby driving the driven gear 34 to rotate for one circle. During this process, on the one hand, the forward and reverse motor 31 drives the electric telescopic rod 317 to rotate. While the controller controls the forward rotation of the forward and reverse motor 31, it controls the contraction of the electric telescopic rod 317, thereby driving the magnet 310 to move upward. Under the action of magnetic force, it drives the magnetic ring 311 to slide upward synchronously along the connecting pipe 321. The magnetic ring 311 drives the stirring plate 312 to rotate upward counterclockwise synchronously while the effective number of turns of the coil 316 gradually decreases and the current increases. At this time, the current in the coil 316 is transmitted to the electric telescopic rod 322 through the magnetic ring 311, so that the electric telescopic rod 322 extends, stretching the buffer spring 318 and pushing the bubble-breaking plate 319 to move towards the inner wall of the stirring cylinder 26, dispersing the bubbles rising to the liquid surface in the horizontal direction, preventing the bubble clusters from aggregating and re-entering the liquid, affecting the defoaming effect, and at the same time squeezing and breaking the bubbles overflowing on the liquid surface, thereby improving the bubble removal efficiency of the device. On the other hand, when the driven gear 34 rotates, the pull rope 320 is wound up under the action of the rotating column 35, thereby pulling the stirring plate 312 to compress the torsion spring 313 and turn upward. At the same time, during the rotation of the rotating column 35, it drives the swing rod 36 to contact the conductive plate 37. At this time, the current transmitted by the controller to the swing rod 36 is transmitted to the memory spring hose 314 through the conductive plate 37. The memory spring receives the current and contracts at this time, thereby pulling the counterweight 315 to move towards the connecting pipe 321. At this time, the rotating and upwardly turned stirring plate 312 evenly stirs the liquid to be treated while rotating in the same direction as the self-rotation direction of the liquid to be treated, forming a spiral upward flow path in the self-rotating liquid, thereby quickly bringing the bubbles in the liquid to the liquid surface, cooperating with the bubble-breaking plate 319 to quickly remove the bubbles, and improving the defoaming efficiency of the device.

[0067] While the controller controls the forward and reverse motor 31 to rotate clockwise slowly, it controls the electric telescopic rod 1 317 to extend. At this time, the magnet 310 drives the magnetic ring 311 to move downward and at the same time drives the stirring plate 312 to rotate slowly downward. At this time, the clockwise rotation of the forward and reverse motor 31, under the transmission of the driving gear 33 and the driven gear 34, drives the rotating column 35 to rotate in the reverse direction, so that while the pulling rope 320 is untangled, the swing rod 36 rotates in the reverse direction and compresses the spring 38 to reset. The swing rod 36 continues to rotate and no longer contacts the conductive plate 37, so that the memory spring hose 314 stops receiving current, and thus extends to push the counterweight 315 to reset, and cooperates with the restoring force of the torsion spring 313 itself to make the stirring plate 312 return to the horizontal state, scraping the bubbles accumulated on the inner wall of the stirring cylinder 26 while reducing the viscosity of the liquid, increasing the overflow speed of the bubbles in the liquid. When the magnetic ring 311 moves downward, at this time, the effective number of turns of the coil 316 increases, the resistance becomes larger, and the current becomes smaller. At this time, the electric telescopic rod 2 322 drives the bubble-breaking plates 319 to approach each other under the action of the restoring force of the buffer spring 318, and scrapes the bubbles overflowing from the inclined liquid surface again, thus jointly improving the bubble removal efficiency.

[0068] After the air in the chassis 1 is pumped out by the air pump 41, the chassis 1 reaches the preset pressure value and a vacuum state is formed inside. If there is a situation of poor sealing during the defoaming process, when the external gas enters the chassis 1 from the sealing plate 42, the pressure gradually increases, pushing the sliding piece 43 to move on the guide post 44. At this time, the displacement sensor 45 detects that the position of the sliding piece 43 has changed, and thus feeds back an electrical signal to the controller. The controller controls the air pump 41 to start, continuously pumps the gas inside the chassis 1, and maintains the pressure inside the chassis 1, so as to avoid the influence of poor sealing on the defoaming effect.

[0069] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A vacuum degassing machine with self-checking sealing, characterized in that: A vacuum degassing machine with a sealing self-check comprises a chassis (1), a centrifugal unit (2), a degassing unit (3) and a detection unit (4); the chassis (1) is placed on a horizontal foundation; a transparent observation window is provided on the upper surface of the chassis (1) shell; a control panel is provided on the chassis (1) shell; the centrifugal unit (2) is fixedly mounted inside the chassis (1); the degassing unit (3) is fixedly mounted inside the centrifugal unit (2); the degassing unit (3) is used for quickly removing bubbles inside a to-be-processed object; the detection unit (4) is used for detecting the vacuum degree inside the chassis (1); and the detection unit (4) is fixedly mounted inside the chassis (1); The degassing unit (3) comprises a forward and reverse motor (31), a mounting box (32), a driving gear (33), a driven gear (34), a rotating column (35), a swing rod (36), a conductive plate (37), a compression spring (38), a fixed plate (39), a magnet (310), a magnetic ring (311), a stirring plate (312), a torsion spring (313), a memory spring hose (314), a counterweight (315), a coil (316), an electric telescopic rod 1 (317), a buffer spring (318), a bubble breaking plate (319), a pull rope (320), a connecting pipe (321) and an electric telescopic rod 2 (322). The fixed end of the forward and reverse motor (31) is fixedly mounted on the outer surface of the connecting pipe (321). The output end of the electric telescopic rod (31) is connected to the fixed end of the electric telescopic rod (317); the end of the output end of the electric telescopic rod (317) is fixedly mounted with a magnet (310); the electric telescopic rod (317) is mounted inside a connecting pipe (321); one end of the connecting pipe (321) is fixedly connected to the fixed end of the forward and reverse motor (31); the other end of the connecting pipe (321) is fixedly connected to the inner surface of the mixing drum (26); the mounting box (32) is fixedly mounted on the output end of the forward and reverse motor (31); the driving gear (33) is fixedly mounted on the outer surface of the fixed end of the electric telescopic rod (317); the driving gear (33) is meshedly connected to the driven gear (34); one end of the rotating column (35) is fixedly connected to the driven gear (34) The swing rod (36) is fixedly connected to the outer surface of the rotating column (35), and the other end is rotatably connected to the fixed plate (39). The swing rod (36) is fixedly mounted on the outer surface of the rotating column (35). The swing rod (36) is electrically connected to the external controller. The conductive plate (37) is electrically connected to the memory spring hose (314). The conductive plate (37) is slidably mounted in an arc groove provided in the fixed plate (39). The compression spring (38) is mounted in the arc groove of the fixed plate (39). The fixed plate (39) is fixedly mounted on the inner surface of one end of the installation box (32) close to the horizontal foundation. The magnetic ring (311) is slidably mounted on the outer surface of the connecting pipe (321). The magnetic ring (311) is connected to the stirring plate (312) via a torsion spring (313). The magnetic ring (311) is connected to the electric telescopic rod. The second (322) is electrically connected, one end of the memory spring hose (314) is fixedly mounted on the inner surface of one end of the stirring plate (312) near the connecting pipe (321), and the other end is fixedly connected to the counterweight (315), a memory spring is arranged inside the memory spring hose (314), the coil (316) is evenly wound on the outer surface of the connecting pipe (321), the fixed end of the second electric telescopic rod (322) is tilted and fixedly mounted on the outer surface of the connecting pipe (321), the telescopic end of the second electric telescopic rod (322) is fixedly connected to the bubble breaking plate (319), both ends of the buffer spring (318) are fixedly connected to the bubble breaking plate (319), one end of the pull rope (320) passes through the installation box (32) and is fixedly connected to the rotating column (35),The other end is fixedly connected to the end of the stirring plate (312), and the magnet (310) and the magnetic ring (311) have opposite magnetic properties.

2. A vacuum degassing machine with self-tightness inspection according to claim 1, characterized in that: The centrifugal unit (2) comprises a driving motor (21), a containing cylinder (22), a rotating disk (23), a straight rod (24), a connecting sleeve (25) and a stirring drum (26); the fixed end of the driving motor (21) is fixedly mounted on the inner surface of one end of the chassis (1) close to the horizontal base; the output end of the driving motor (21) passes through the containing cylinder (22) and is fixedly connected to the rotating disk (23); the containing cylinder (22) is fixedly mounted at the middle of the output end of the driving motor (21); a groove is formed at one end of the rotating disk (23) away from the horizontal base; the straight rod (24) is fixedly mounted on the inner wall of the groove of the rotating disk (23); one end of the connecting sleeve (25) is fixedly connected to the stirring drum (26); the other end is rotatably mounted on the straight rod (24); and the stirring drum (26) is fixedly connected to the degassing unit (3).

3. The vacuum degassing machine with sealing self-checking according to claim 1, characterized in that: The detection unit (4) comprises an air pump (41), a sealing plate (42), a sliding plate (43), a guide column (44) and a displacement sensor (45); the air pump (41) is fixedly mounted on the outer surface of the chassis (1); the sealing plate (42) is provided with an exhaust port; the sealing plate (42) is fixedly mounted on the outer surface of an end of the chassis (1) away from the horizontal base; the displacement sensor (45) is fixedly mounted inside the sealing plate (42); the sliding plate (43) is slidably mounted on the guide column (44); and the displacement sensors (45) are fixedly connected to both ends of the guide column (44).

4. The vacuum degassing machine with sealing self-checking according to claim 1, characterized in that: The gear ratio between the driving gear (33) and the driven gear (34) is 1:

5.

5. The vacuum degassing machine with self-tightness inspection according to claim 1, characterized in that: One end of the coil (316) close to the installation box (32) is a current input end.

6. The vacuum degassing machine with self-tightness inspection according to claim 1, characterized in that: There are two bubble breaking plates (319), and the two bubble breaking plates (319) have the same inclination angle as the mixing drum (26).

7. The vacuum degassing machine with sealing self-checking according to claim 1, characterized in that: The forward and reverse motor (31) has a counterclockwise rotation speed greater than a clockwise rotation speed.

Images