A capacitance detection device for an electrofluid 3D printer nozzle

Abstract

This invention provides a capacitance detection device for a current-current 3D printer nozzle, relating to the field of capacitance measurement technology. It includes a detection frame, a lifting mechanism, a moving component, and a testing module. Side baffles are welded to both ends of the detection frame, and a lifting mechanism is installed on the inner side of the side baffles. Two test slots are formed on the surface of the lifting mechanism to hold the capacitors to be tested. A moving component is installed on the top of the lifting mechanism, and the moving component moves along the lifting mechanism. This invention allows the moving component to control the movement of the testing module between the two test slots, so that when testing one capacitor, the next capacitor to be tested can be directly placed into the other test slot, improving efficiency for large-volume capacitor testing. Furthermore, it allows adjustment of the position of the two electrode plates according to the distribution, quantity, and specifications of the leads on different capacitors, providing additional effects such as temperature testing and rapid cooling.

Description

Technical Field

[0001] This invention relates to the field of capacitance measurement technology, specifically to a capacitance detection device for the nozzle of a current-current 3D printer. Background Technology

[0002] In a 3D printer nozzle, capacitors store and release energy through high-frequency capacitor banks, precisely controlling microsecond-level high-voltage pulses to ensure jet diameter errors are controlled within a certain range, thus adapting to different material viscosities. Therefore, capacitors play a crucial role in the 3D printer nozzle, also performing functions such as filtering, coupling, and energy storage. Understanding capacitor performance and fault diagnosis methods is essential for maintaining and repairing electronic equipment. When judging the quality of a capacitor, the following aspects are typically considered: capacitance, withstand voltage, and leakage current. After the capacitor is produced, a dedicated testing device is required for subsequent testing.

[0003] Existing technologies for capacitance testing of nozzles in current fluid 3D printers directly use multimeters. However, this method is inefficient and cannot meet the high-efficiency measurement requirements of large-scale testing. On the other hand, automated testing equipment requires high efficiency in transporting capacitors. Different capacitors have different lead sizes and numbers, so the electrodes used to connect the capacitors during testing need to be aligned accordingly. This process can easily lead to misalignment or displacement between the electrodes and the capacitor leads, or even multiple leads connected to the same electrode. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a capacitance detection device for the nozzle of a current fluid 3D printer, thereby solving the problems mentioned in the background art. The present invention can use a moving component to control the movement of the test module between two test slots, so that when testing one capacitor, the next capacitor to be tested can be directly placed into the other test slot, improving the efficiency of testing large batches of capacitors. Furthermore, the position of the two electrode plates can be adjusted according to the distribution, quantity, and specifications of the leads on different capacitors, ensuring that capacitors of various specifications can be tested. It also provides the additional effects of temperature testing and rapid cooling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a capacitance detection device for a current-current 3D printer nozzle, comprising a detection device body, the detection device body including a detection frame, a lifting mechanism, a moving component, and a test module. Side baffles are welded to both ends of the detection frame. A lifting mechanism is installed on the inner side of the side baffles. Test slots are formed on the surface of the lifting mechanism, and the test slots are used to place the capacitor element to be tested. There are two test slots. A moving component is installed on the top of the lifting mechanism, and the moving component moves horizontally along the lifting mechanism. A test module is embedded inside the moving component. A first electrode plate and a second electrode plate are provided at the bottom of the test module. The bottom of the test module is used to mate and adhere with the lead portion of the capacitor to be tested. The test module is moved to the upper area of ​​the two test slots by the moving component.

[0006] Furthermore, the testing frame includes a cooling tank, a spring rod, and a motor. The motor is screwed to the outside of one of the side baffles, and a lead screw is inserted into the output end of the motor. A guide rod is inserted between the two side baffles, and coolant is injected into the cooling tank.

[0007] Furthermore, the lead screw and guide rod are parallel to each other, and the end of the lead screw is embedded in the inner wall of another side baffle through a bearing. The cooling groove is provided with bases at both ends, and the bottom of the spring rod is embedded in the interior of the base. The spring rod is used to support the lifting mechanism.

[0008] Furthermore, the lifting mechanism includes a tray, a test slot, and a ladder. The ladder is integrally formed in the middle of the surface of the tray. The test slots are opened on both sides of the tray, and a temperature sensing module is embedded in the bottom inner side of each test slot.

[0009] Furthermore, inclined plates are provided on both sides of the platform, and lifting sleeves are welded to both ends of the surface of the support plate. The top of the spring rod is embedded in the interior of the lifting sleeve, and a heat-conducting ring is integrally formed at the bottom of each test slot. After the lifting mechanism moves down, it is used to embed the heat-conducting ring into the interior of the cooling slot.

[0010] Furthermore, the moving component includes a moving plate, a docking channel, and a pressing rod. The moving plate has a docking channel in the middle, and the test module is embedded inside the docking channel. The surface of the moving plate is welded with a threaded sleeve and a guide sleeve.

[0011] Furthermore, the threaded sleeve is fitted onto the surface of the lead screw, the guide sleeve is fitted onto the surface of the guide rod, and a pressing rod is welded to the bottom of the moving plate.

[0012] Furthermore, each of the pressing rods is connected to a roller at its bottom, and the moving component presses against the lifting mechanism via the roller at its bottom. The threaded sleeve and the guide sleeve are respectively arranged on both sides of the docking channel, and the top and bottom of the docking channel are both in an open state.

[0013] Furthermore, the test module includes a rotating channel, a first electrode plate, and a second electrode plate. A support plate is welded to the top of the inner wall of the docking channel. A partition is integrally formed in the middle of the support plate. A rotating channel is welded to the top of the partition. A connecting rod is inserted in the middle of the rotating channel.

[0014] Furthermore, the top of the connecting rod is integrally formed with a knob, the bottom of the connecting rod is fitted with a pressure spring, an insulating plate is attached between the first electrode plate and the second electrode plate, a mating bearing is embedded in the middle of the surface of the insulating plate, the bottom plate of the connecting rod is fixed to the insulating plate as a whole, the bottom of the pressure spring abuts against the surface of the mating bearing, and conductive wires are connected to the top of the first electrode plate and the second electrode plate.

[0015] The beneficial effects of this invention are:

[0016] The capacitance detection device of this current fluid 3D printer nozzle can use a moving component to control the test module to move between two test slots, so that when testing one capacitor, the next capacitor to be tested can be placed directly into the other test slot, which improves the efficiency of testing large batches of capacitors.

[0017] The capacitance detection device of this electro-hydraulic 3D printer nozzle can adjust the position of the two electrode plates according to the distribution, quantity, and specifications of the leads on different capacitors. The adjustment is simple and convenient, and after the adjustment is completed, it can be used to continuously test the same type of capacitor, thus achieving the purpose of testing capacitors of various specifications.

[0018] The capacitance detection device of this current fluid 3D printer nozzle has a temperature sensing module installed inside each test slot. The temperature sensing module provides the function of temperature testing. With the help of the lifting mechanism and moving components, after each single capacitance measurement is completed, each temperature sensing module can be automatically controlled to carry out heat conduction and heat dissipation, achieving the additional effect of rapid cooling and avoiding the influence of the heated state on subsequent capacitance measurements. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of a capacitance detection device for an electrofluid 3D printer nozzle according to the present invention.

[0020] Figure 2This is a side view of a capacitance detection device for an electrofluid 3D printer nozzle according to the present invention;

[0021] Figure 3 This is a schematic diagram of the lifting mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the moving component portion of the present invention;

[0023] Figure 5 This is a schematic diagram of the test module of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the detection frame part of the present invention;

[0025] Figure 7 for Figure 2 Enlarged view of region A in the middle;

[0026] In the diagram: 1. Testing frame; 2. Side baffle; 3. Lifting mechanism; 4. Moving component; 5. Test module; 6. Cooling tank; 7. Coolant; 8. Spring rod; 9. Motor; 10. Lead screw; 11. Guide rod; 12. Support plate; 13. Ladder platform; 14. Inclined plate; 15. Test slot; 16. Temperature sensing module; 17. Lifting sleeve; 18. Heat-conducting ring; 19. Moving plate; 20. Threaded sleeve; 21. Guide sleeve; 22. Docking channel; 23. Roller; 24. Pressing rod; 25. Conductive wire; 26. Support plate; 27. Partition plate; 28. Rotation channel; 29. ​​Connecting rod; 30. Knob; 31. Pressure-boosting spring; 32. Docking bearing; 33. Insulating plate; 34. First electrode plate; 35. Second electrode plate; 36. Base. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] Please see Figures 1 to 7This invention provides the following technical solution: a capacitance detection device for a current-current 3D printer nozzle, comprising a detection device body, the detection device body including a detection frame 1, a lifting mechanism 3, a moving component 4, and a test module 5. Side baffles 2 are welded to both ends of the detection frame 1. The lifting mechanism 3 is installed on the inner side of the side baffles 2. Test slots 15 are formed on the surface of the lifting mechanism 3. The test slots 15 are used to place the capacitor element to be tested. There are two test slots 15. The moving component 4 is installed on the top of the lifting mechanism 3. The moving component 4 moves along the lifting mechanism 3. The test module 5 is embedded in the inner side of the moving component 4. A first electrode plate 34 and a second electrode plate 35 are provided at the bottom of the test module 5. The bottom of the test module 5 is used to mate and adhere with the lead portion of the capacitor to be tested. The test module 5 is moved to the area above the two test slots 15 by the moving component 4. This capacitance detection device is used to test the capacitor elements used in the current-current 3D printer nozzle after production processing.

[0029] In use, the capacitor to be tested is placed into one of the test slots 15 on the surface of the lifting mechanism 3 by an external conveying device. Then, the inner test module 5 is moved by the moving component 4 and alternately aligned with the bottom test slot 15. During this movement, the bottom lifting mechanism 3 is controlled to perform periodic lifting movements. In this alternating lifting movement, the test module 5 is connected to the lead part of the placed capacitor to be tested. After the connection is completed, current can be transmitted through the conductive wire 25. The capacitance of the capacitor is tested in conjunction with an external multimeter. At the same time, the temperature sensing module 16 inside the test slot 15 monitors the heat generation of the capacitor to be tested during the test and automatically cools the test slot 15 after the test is completed.

[0030] In this embodiment, the detection frame 1 includes a cooling groove 6, a spring rod 8, and a motor 9. The motor 9 is screwed to the outside of one of the side baffles 2. A lead screw 10 is inserted into the output end of the motor 9. A guide rod 11 is inserted between the two side baffles 2. Coolant 7 is injected into the cooling groove 6. The lead screw 10 and the guide rod 11 are parallel to each other. The end of the lead screw 10 is embedded in the inner wall of the other side baffle 2 through a bearing. Bases 36 are provided at both ends of the cooling groove 6. The bottom of the spring rod 8 is embedded in the base 36. The spring rod 8 is used to support the lifting mechanism 3.

[0031] Specifically, the testing frame 1 provides support and drive to the inner lifting mechanism 3 and the moving component 4. When in use, the motor 9 at one end is started directly, and the motor 9 drives the lead screw 10 to rotate, which can cooperate with the threaded sleeve 20 on the moving component 4 to achieve the effect of translational movement. At the same time, the guide rod 11 is used to further improve the stability during movement, and coolant 7 is injected into the cooling tank 6 to achieve the purpose of cooling.

[0032] In this embodiment, the lifting mechanism 3 includes a tray 12, test slots 15, and a ladder 13. The ladder 13 is integrally formed in the middle of the surface of the tray 12. The test slots 15 are formed on both sides of the tray 12, and a temperature sensing module 16 is embedded in the bottom inner side of each test slot 15. Inclined plates 14 are provided on both sides of the ladder 13. Lifting sleeves 17 are welded to both ends of the surface of the tray 12. The top of the spring rod 8 is embedded inside the lifting sleeve 17. A heat-conducting ring 18 is integrally formed at the bottom of each test slot 15. After the lifting mechanism 3 moves down, it is used to embed the heat-conducting ring 18 into the cooling slot 6. The moving component 4 can control the test module 5 to move between two test slots 15, so that when testing one capacitor, the next capacitor to be tested can be directly placed into the other test slot 15, improving the efficiency of large-batch capacitor testing. A temperature sensing module 16 is installed inside each test slot 15. The temperature sensing module 16 provides the function of temperature testing. With the help of the lifting mechanism 3 and the moving component 4, after each single capacitance measurement is completed, each temperature sensing module 16 can be automatically controlled to carry out heat conduction and heat dissipation, achieving the additional effect of rapid cooling and avoiding the influence of the heated state on the subsequent capacitance measurement.

[0033] Specifically, when the moving component 4 moves along the surface of the lifting mechanism 3 controlled by the motor 9, the moving component 4 is always restricted by the lead screw 10 and the guide rod 11, and can only perform translational movement without changing its vertical height. Therefore, when the moving component 4 presses against the surface of the tray 12 or the platform 13, it will cause the lifting mechanism 3 to move up and down. When the moving component 4 presses against the platform 13, the entire lifting mechanism 3 can be pressed down. At this time, the heat-conducting ring 18 at the bottom of the test tank 15 can be embedded into the cooling tank 6. The cooling liquid 7 inside the cooling tank 6 can achieve the purpose of heat dissipation at the bottom of the test tank 15. The entire lifting mechanism 3 is supported and buffered by multiple spring rods 8 at both ends of the bottom.

[0034] In this embodiment, the moving component 4 includes a moving plate 19, a docking channel 22, and a pressing rod 24. The moving plate 19 has a docking channel 22 in the middle, and the test module 5 is embedded inside the docking channel 22. A threaded sleeve 20 and a guide sleeve 21 are welded to the surface of the moving plate 19. The threaded sleeve 20 is fitted onto the surface of the lead screw 10, and the guide sleeve 21 is fitted onto the surface of the guide rod 11. A pressing rod 24 is welded to the bottom of the moving plate 19. Each pressing rod 24 has a roller 23 connected to its bottom. The moving component 4 is pressed against the lifting mechanism 3 by the rollers 23 at the bottom. The threaded sleeve 20 and the guide sleeve 21 are respectively located on both sides of the docking channel 22, and the top and bottom of the docking channel 22 are both open.

[0035] Specifically, after starting the motor 9, the entire moving assembly 4 is controlled to move horizontally by the lead screw 10 and the threaded sleeve 20. The bottom pressing rod 24 and the roller 23 press against the surface of the tray 12, so that the moving assembly 4 can move alternately on the tray 12 and the ladder 13. When the moving assembly 4 is on the left side of the ladder 13, the capacitor to be tested can be placed in the test slot 15 on the right side. As the moving assembly 4 moves past the ladder 13, the lifting mechanism 3 slowly lifts it up, and finally the top lead of the capacitor to be tested placed on the right side can be inserted into the bottom of the docking channel 22, and finally the electrode plate of the test module 5 inside the docking channel 22 is brought into contact and bonded.

[0036] In this embodiment, the test module 5 includes a rotating channel 28, a first electrode plate 34, and a second electrode plate 35. A support plate 26 is welded to the top of the inner wall of the docking channel 22. A partition 27 is integrally formed in the middle of the support plate 26. The rotating channel 28 is welded to the top of the partition 27. A connecting rod 29 is inserted in the middle of the rotating channel 28. A knob 30 is integrally formed on the top of the connecting rod 29. A pressure-boosting spring 31 is sleeved on the bottom of the connecting rod 29. An insulating plate 33 is attached between the first electrode plate 34 and the second electrode plate 35. A docking bearing 32 is embedded in the middle of the surface of the insulating plate 33. The bottom plate of the connecting rod 29 is partially fixed to the insulating plate 33 as a whole. The bottom of the pressure-boosting spring 31 abuts against the surface of the docking bearing 32. Conductive wires 25 are connected to the tops of the first electrode plate 34 and the second electrode plate 35. The position of the two electrode plates can be adjusted according to the distribution, quantity, and specifications of the leads on different capacitors. Adjustment is achieved simply by rotating the knob 30 on the top. The adjustment process is simple and convenient, and once the adjustment is completed, it can be used to continuously test the same type of capacitor, thus realizing the purpose of testing capacitors of various specifications.

[0037] Specifically, the test module 5 always moves synchronously with the translational movement of the moving component 4. Therefore, when the top of the capacitor element under test at the bottom is embedded in the docking channel 22, the lead wire can be brought into contact with the first electrode plate 34 and the second electrode plate 35 at the bottom of the test module 5, thereby connecting current for detection. At the same time, the knob 30 at the top can be controlled to drive the connecting rod 29 to rotate. The connecting rod 29 drives the bottom insulating plate 33 and the first electrode plate 34 and the second electrode plate 35 on the side to rotate, ensuring that the positive and negative leads on the capacitor element under test are always in contact with different electrode plates to achieve the purpose of testing. In addition, the pressure spring 31 always increases the downward pressure on the bottom first electrode plate 34 and the second electrode plate 35 to prevent the electrode plates and leads from separating.

[0038] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A capacitance detection device for an electro-fluidic 3D printer nozzle, comprising a detection device body, characterized in that: The detection device body includes a detection frame (1), a lifting mechanism (3), a moving assembly (4) and a test module (5), both ends of the detection frame (1) are welded with side baffles (2), the inner side of the side baffle (2) is provided with a lifting mechanism (3), the surface of the lifting mechanism (3) is provided with a test slot (15), the test slot (15) is used for placing the capacitor element to be tested, the number of the test slot (15) is two, the top of the lifting mechanism (3) is provided with a moving assembly (4), the moving assembly (4) moves along the lifting mechanism (3), the inner side of the moving assembly (4) is embedded with a test module (5), the bottom of the test module (5) is provided with a first electrode plate (34) and a second electrode plate (35), the bottom of the test module (5) is used for abutting and fitting with the lead part of the capacitor to be tested, the test module (5) is moved to the upper region of the two test slots (15) respectively through the moving assembly (4), the test module (5) includes a rotating channel (28), a first electrode plate (34) and a second electrode plate (35), the inner wall top of the abutting channel (22) is welded with a support plate (26), the middle of the support plate (26) is integrally formed with a partition plate (27), the top of the partition plate (27) is welded with a rotating channel (28), the middle of the rotating channel (28) is inserted with a connecting rod (29), the top of the connecting rod (29) is integrally formed with a knob (30), the bottom of the connecting rod (29) is sleeved with a booster spring (31), the first electrode plate (34) and the second electrode plate (35) are attached with an insulating plate (33), the surface of the insulating plate (33) is embedded with an abutting bearing (32), the bottom plate of the connecting rod (29) and the insulating plate (33) are fixed as a whole, the bottom of the booster spring (31) abuts against the surface of the abutting bearing (32), the top of the first electrode plate (34) and the second electrode plate (35) is connected with a conductive wire (25).

2. The device for detecting capacitance of a nozzle of an electrohydrodynamic 3D printer according to claim 1, characterized in that: The detection frame (1) includes a cooling tank (6), a spring rod (8) and a motor (9), the motor (9) is screwed on the outside of one of the side baffles (2), the output end of the motor (9) is inserted with a lead screw (10), the guide rod (11) is inserted between the two side baffles (2), the inside of the cooling tank (6) is injected with a cooling liquid (7).

3. The device for detecting capacitance of a nozzle of an electrofluidic 3D printer according to claim 2, wherein: The lead screw (10) and the guide rod (11) are parallel to each other, the end of the lead screw (10) is embedded into the inner wall of the other side baffle (2) through a bearing, the both ends of the cooling tank (6) are provided with a base (36), the bottom of the spring rod (8) is embedded into the inside of the base (36), the spring rod (8) is used for supporting the lifting mechanism (3).

4. The device for detecting capacitance of a nozzle of an electrofluidic 3D printer according to claim 2, wherein: The lifting mechanism (3) comprises a supporting plate (12), test grooves (15) and a ladder (13), the ladder (13) is integrally formed in the middle of the surface of the supporting plate (12), the test grooves (15) are arranged on both sides of the supporting plate (12), and the inner side bottom of each test groove (15) is embedded with a temperature sensing module (16).

5. The device for capacitance detection of a fluidic 3D printer head according to claim 4, characterized in that Both sides of the ladder (13) are provided with inclined plates (14), both ends of the surface of the supporting plate (12) are welded with lifting sleeves (17), the top of the spring rod (8) is embedded into the inside of the lifting sleeve (17), and the bottom of each test groove (15) is integrally formed with a heat conduction ring (18), and the lifting mechanism (3) is used for embedding the heat conduction ring (18) into the inside of the cooling groove (6) after being lowered.

6. The device for detecting capacitance of a nozzle of an electrofluidic 3D printer according to claim 4, wherein: The moving assembly (4) comprises a moving plate (19), a butt joint channel (22) and a pressing rod (24), the middle of the moving plate (19) is provided with the butt joint channel (22), the test module (5) is embedded into the inside of the butt joint channel (22), and the surface of the moving plate (19) is welded with a threaded sleeve (20) and a guide sleeve (21).

7. The device for capacitance detection of a fluidic 3D printer head according to claim 6, characterized in that The threaded sleeve (20) is sleeved on the surface of the lead screw (10), the guide sleeve (21) is sleeved on the surface of the guide rod (11), and the bottom of the moving plate (19) is welded with the pressing rod (24).

8. The device for capacitance detection of a fluidic 3D printer head according to claim 7, characterized in that The bottom of each pressing rod (24) is connected with a roller (23), the moving assembly (4) is pressed on the lifting mechanism (3) through the roller (23) at the bottom, the threaded sleeve (20) and the guide sleeve (21) are arranged on both sides of the butt joint channel (22) respectively, and the top and the bottom of the butt joint channel (22) are in an open state.

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