Capacitance detection device of electrofluid 3D printer nozzle

Abstract

The invention provides a capacitance detection device for an electrofluid 3D printer nozzle, and relates to the technical field of capacitance measurement, the capacitance detection device comprises a detection frame, a lifting mechanism, a moving assembly and a test module, side baffles are welded to the two ends of the detection frame, the lifting mechanism is installed on the inner sides of the side baffles, and a test groove is formed in the surface of the lifting mechanism; the lifting mechanism is provided with two test grooves, the test grooves are used for placing a to-be-tested capacitor element, the top of the lifting mechanism is provided with a moving assembly, and the moving assembly performs translational motion along the lifting mechanism. Therefore, when one capacitor is tested, the next to-be-tested capacitor can be directly placed in the other test groove, the efficiency of large-batch capacitor testing is improved, the positions of the two electrode plates can be regulated and controlled according to the distribution positions, the number and the specifications of the leads on different capacitors, and the testing efficiency is improved. And additional effects of temperature testing and rapid cooling are provided.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitance measurement, and in particular to a capacitance detection device for an electrohydrodynamic 3D printer nozzle. Background Art

[0002] The capacitance in the electrohydrodynamic 3D printer nozzle can store and release energy through a high-frequency capacitor bank to precisely control high-voltage pulses in the microsecond level, ensuring that the jet diameter error is controlled within a certain range, so as to adapt to different material viscosities. Therefore, the capacitance plays an important role in the 3D printer nozzle, and also includes functions such as filtering, coupling, and energy storage. Therefore, understanding the performance and fault judgment methods of the capacitance is crucial for the maintenance and repair of electronic devices. When judging the quality of a capacitance, the following aspects are usually considered: capacitance value, withstand voltage, leakage, etc. When measuring the generated capacitance, a special detection device is required to complete the subsequent detection process.

[0003] In the prior art, for the capacitance detection scheme of the electrohydrodynamic 3D printer nozzle, a multimeter is directly used for detection. However, this scheme has low detection efficiency and is difficult to meet the high-efficiency measurement requirements for a large number of detection processes. On the other hand, for an automated detection device, the transportation efficiency of the capacitance is high. Since the lead wire sizes and quantities of different capacitances are different, the electrodes used to connect the capacitances during testing also need to be aligned and connected accordingly. In this process, problems such as misalignment and offset between the electrodes and the capacitance lead wires are likely to occur, and even the phenomenon that multiple lead wires are connected to the same electrode may occur. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a capacitance detection device for an electrohydrodynamic 3D printer nozzle to solve the problems raised in the above background art. The present invention can use a moving component to control the test module to move between two test slots, so that when testing one capacitance, the next capacitance to be tested can be directly placed into the other test slot, improving the efficiency during the large-scale capacitance testing, and can adjust the positions of the two electrode plates according to the distribution positions, quantities, and specifications of the lead wires on different capacitances to ensure that various specifications of capacitances can be tested, and provides the additional effects of temperature testing and rapid cooling.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A capacitance detection device for an electrohydrodynamic 3D printer nozzle, including a detection device body. The detection device body includes a detection frame, a lifting mechanism, a moving component, and a testing module. Side baffles are welded at both ends of the detection frame. A lifting mechanism is installed inside the side baffles. A testing slot is formed on the surface of the lifting mechanism. The testing slot is used to place the capacitance element to be tested. The number of testing slots is two. A moving component is installed at the top of the lifting mechanism. The moving component performs a translational movement along the lifting mechanism. A testing module is embedded inside the moving component. A first electrode plate and a second electrode plate are provided at the bottom of the testing module. The bottom of the testing module is used to dock and fit with the lead part of the capacitance to be tested. The testing module is respectively moved to the upper regions of the two testing slots through the moving component.

[0006] Further, the detection frame includes a cooling tank, a spring rod, and a motor. The motor is screwed on the outside of one of the side baffles. A lead screw is inserted at the output end of the motor. A guide rod is inserted between the two side baffles. Cooling liquid is injected into the interior of the cooling tank.

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

[0008] Further, the lifting mechanism includes a support plate, a testing slot, and a stepped platform. The stepped platform is integrally formed at the middle position on the surface of the support plate. The testing slots are formed on both sides of the support plate. And a temperature sensing module is embedded at the inner bottom of each testing slot.

[0009] Further, inclined plates are provided on both sides of the stepped platform. Lifting sleeves are welded at both ends of the surface of the support plate. The top of the spring rod is embedded into the interior of the lifting sleeve. A heat conducting ring is integrally formed at the bottom of each testing slot. After the lifting mechanism moves down, the heat conducting ring is used to be embedded into the interior of the cooling tank.

[0010] Further, the moving component includes a moving plate, a docking channel, and a pressing rod. A docking channel is formed in the middle of the moving plate. The testing module is embedded into the interior of the docking channel. Threaded sleeves and guide sleeves are welded on the surface of the moving plate.

[0011] Further, the threaded sleeve is sleeved on the surface of the lead screw. The guide sleeve is sleeved on the surface of the guide rod. A pressing rod is welded at the bottom of the moving plate.

[0012] Furthermore, a roller is connected to the bottom of each pressing rod, and the moving component presses on the lifting mechanism through the roller at the bottom. The threaded sleeve and the guiding 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 testing module includes a rotating channel, a first electrode plate, and a second electrode plate. A support plate is welded to the top end inner wall of the docking channel. A partition is integrally formed in the middle of the support plate, and a rotating channel is welded to the top of the partition. A connecting rod is inserted into the middle of the rotating channel.

[0014] Furthermore, a knob is integrally formed at the top of the connecting rod. A pressurizing spring is sleeved on the bottom of the connecting rod. An insulating plate is attached between the first electrode plate and the second electrode plate. A docking bearing is embedded in the middle of the surface of the insulating plate. The bottom plate of the connecting rod is fixed as a whole with a part of the insulating plate. The bottom of the pressurizing spring abuts against the surface of the docking bearing. Conductive wires are connected to the tops of the first electrode plate and the second electrode plate.

[0015] Advantages of the present invention: The capacitance detection device of the current fluid 3D printer nozzle can use the moving component to control the testing module to move between two testing slots, so that when testing one capacitance, the next capacitance to be tested can be directly placed into the other testing slot, improving the efficiency of large - batch capacitance testing.

[0016] The capacitance detection device of the current fluid 3D printer nozzle can adjust the positions of the two electrode plates according to the distribution positions, quantities, and specifications of the upper leads of different capacitors. During the adjustment, only by rotating the knob at the top can it be done. The adjustment process is simple and convenient, and after the adjustment is completed, the same type of capacitors can be continuously tested, achieving the purpose of testing various specifications of capacitors.

[0017] The capacitance detection device of the current fluid 3D printer nozzle installs a temperature - sensing module inside each testing slot. The temperature - sensing module provides the function of temperature testing, and also cooperates with the lifting mechanism and the moving component. After each single - capacitance measurement is completed, each temperature - sensing module can be automatically controlled to conduct heat conduction and heat dissipation treatment, achieving the additional effect of rapid cooling and avoiding the influence of the heating state on the subsequent capacitance measurement. Description of the drawings

[0018] Figure 1 It is a schematic structural diagram of the external shape of a capacitance detection device of a current fluid 3D printer nozzle of the present invention; Figure 2 It is a side view of a capacitance detection device of a current fluid 3D printer nozzle of the present invention; Figure 3This is a schematic structural diagram of the lifting mechanism part of the present invention; Figure 4 This is a schematic diagram of the moving component part of the present invention; Figure 5 This is a schematic structural diagram of the test module part of the present invention; Figure 6 This is a schematic structural diagram of the detection rack part of the present invention; Figure 7 is Figure 2 an enlarged view of area A in In the figure: 1, detection rack; 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, step platform; 14, inclined plate; 15, test slot; 16, temperature sensing module; 17, lifting sleeve; 18, heat conduction ring; 19, moving plate; 20, threaded sleeve; 21, guide sleeve; 22, docking channel; 23, roller; 24, pressing rod; 25, conducting wire; 26, support board; 27, partition board; 28, rotating channel; 29, connecting rod; 30, knob; 31, boosting spring; 32, docking bearing; 33, insulating board; 34, first electrode plate; 35, second electrode plate; 36, base. Detailed implementation manners

[0019] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0020] Please refer to Figures 1 to 7 , the present invention provides the following technical solutions: A capacitance detection device for the nozzle of an electrohydrodynamic 3D printer, including a detection device body, the detection device body includes a detection rack 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 rack 1. A lifting mechanism 3 is installed inside the side baffles 2. A test slot 15 is provided on the surface of the lifting mechanism 3. The test slot 15 is used to place the capacitance element to be tested. The number of the test slots 15 is two. A moving component 4 is installed on the top of the lifting mechanism 3. The moving component 4 performs a translational movement along the lifting mechanism 3. A test module 5 is embedded inside 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 dock and fit with the lead part of the capacitance to be tested. The test module 5 is respectively moved to the upper regions of the two test slots 15 through the moving component 4. This capacitance detection device is used to detect the capacitance elements used in the nozzle of an electrohydrodynamic 3D printer after the production and processing are completed.

[0021] When the present invention is in use, the capacitance element to be measured is placed into the interior of one of the test slots 15 on the surface of the lifting mechanism 3 through an external conveying device. Then, the test module 5 inside can be driven by the moving component 4 to perform a translational movement, and alternately aligned with the part of the test slot 15 at the bottom. During this moving process, the lifting mechanism 3 at the bottom can be synchronously controlled to perform a periodic lifting movement. In this state of alternate lifting movement, the purpose of docking the test module 5 with the lead part of the capacitance element to be measured can be achieved. After the docking is completed, current can be transmitted through the conductive wire 25, and the capacitance capacity test process of the capacitance can be realized in cooperation with an external multimeter device. At the same time, the temperature sensing module 16 inside the test slot 15 is used to detect the heat generation situation of the capacitance element to be measured during the test process, and the test slot 15 is automatically cooled after the test is completed.

[0022] In this embodiment, the detection frame 1 includes a cooling tank 6, a spring rod 8, and a motor 9. The motor 9 is screwed on the outer side of one of the side baffles 2. The output end of the motor 9 is inserted with a lead screw 10. A guide rod 11 is inserted between the two side baffles 2. The interior of the cooling tank 6 is filled with a coolant 7. 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 two ends of the cooling tank 6 are provided with bases 36. The bottom of the spring rod 8 is embedded into the interior of the base 36. The spring rod 8 is used to support the lifting mechanism 3.

[0023] Specifically, the detection frame 1 provides support and driving functions for the inner lifting mechanism 3 and the moving component 4. When in use, the motor 9 at one end is directly started. By driving the lead screw 10 to rotate by the motor 9, the effect of translational movement can be achieved in cooperation with the threaded sleeve 20 on the moving component 4. At the same time, the stability during movement is further improved by means of the guide rod 11, and the purpose of cooling is achieved by filling the interior of the cooling tank 6 with the coolant 7.

[0024] In this embodiment, the lifting mechanism 3 includes a support plate 12, a test slot 15, and a stepped platform 13. The stepped platform 13 is integrally formed at the middle position of the surface of the support plate 12. The test slots 15 are opened on both sides of the support plate 12, and a temperature sensing module 16 is embedded at the inner bottom of each test slot 15. Oblique plates 14 are arranged on both sides of the stepped platform 13. Lifting sleeves 17 are welded to both ends of the surface of the support plate 12. The top of the spring rod 8 is embedded into the interior of 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 downward, the heat conducting ring 18 is used to be embedded into the interior of the cooling slot 6. The moving component 4 can be used to control the movement of the test module 5 between the 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 mass capacitor testing. A temperature sensing module 16 is installed inside each test slot 15, providing the function of temperature testing. Also, with the cooperation of the lifting mechanism 3 and the moving component 4, after each single capacitor measurement is completed, each temperature sensing module 16 can be automatically controlled to conduct heat conduction and heat dissipation treatment, achieving the additional effect of rapid cooling and avoiding the influence of the heating state on the subsequent capacitor measurement.

[0025] Specifically, when the motor 9 controls the moving component 4 to move along the surface of the lifting mechanism 3, since the moving component 4 is always restricted by the lead screw 10 and the guide rod 11 and can only perform translational motion without changing in the vertical height, when the moving component 4 presses on the surface of the support plate 12 or the stepped platform 13, it will cause the lifting mechanism 3 to perform lifting motion. When the moving component 4 presses on the stepped platform 13, the entire lifting mechanism 3 can be pressed downward. At this time, a part of the heat conducting ring 18 at the bottom of the test slot 15 can be embedded downward into the cooling slot 6, and the cooling liquid 7 inside the cooling slot 6 can be used to achieve the purpose of dissipating heat from the bottom of the test slot 15. Moreover, the entire lifting mechanism 3 is supported and cushioned by multiple spring rods 8 at both ends of the bottom.

[0026] In this embodiment, the moving component 4 includes a moving plate 19, a docking channel 22, and a pressing rod 24. A docking channel 22 is opened in the middle of the moving plate 19. The test module 5 is embedded into the interior of the docking channel 22. Threaded sleeves 20 and guide sleeves 21 are welded to the surface of the moving plate 19. The threaded sleeve 20 is sleeved on the surface of the lead screw 10, and the guide sleeve 21 is sleeved on the surface of the guide rod 11. A pressing rod 24 is welded to the bottom of the moving plate 19. A roller 23 is connected to the bottom of each pressing rod 24. The moving component 4 presses on the lifting mechanism 3 through the rollers 23 at the bottom. The threaded sleeve 20 and the guide sleeve 21 are respectively arranged on both sides of the docking channel 22. The top and bottom of the docking channel 22 are both in an open state.

[0027] Specifically, after starting the motor 9, the entire moving assembly 4 is controlled to move horizontally through the cooperation of the lead screw 10 and the threaded sleeve 20, and the pressing rod 24 and the roller 23 at the bottom press on the surface of the support plate 12, so that the moving assembly 4 can move alternately on the support plate 12 and the step 13. When the moving assembly 4 is on the left side of the step 13, the capacitive element to be tested can be placed in the test slot 15 on the right side at this time. After the moving assembly 4 moves past the step 13, with the slow lifting of the lifting mechanism 3, finally the top lead of the capacitive element to be tested placed on the right side can be inserted into the bottom of the docking channel 22, and finally the electrode plates of the test module 5 inside the docking channel 22 are brought into contact and fit.

[0028] 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 end of the inner wall of the docking channel 22. A partition 27 is integrally formed in the middle of the support plate 26. A rotating channel 28 is welded to the top of the partition 27. A connecting rod 29 is inserted into the middle of the rotating channel 28. A knob 30 is integrally formed at the top of the connecting rod 29. A pressurizing spring 31 is sleeved at 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 fixed as a whole with a part of the insulating plate 33. The bottom of the pressurizing 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 positions of the two electrode plates can be adjusted according to the distribution position, quantity and specification of the upper leads of different capacitors. During the adjustment, only by controlling the rotation of the knob 30 at the top can it be done. The adjustment process is simple and convenient, and after the adjustment is completed, the same type of capacitors can be continuously tested and used, achieving the purpose of testing various specifications of capacitors.

[0029] Specifically, the test module 5 always moves synchronously with the translational movement of the moving assembly 4. Therefore, after the top end of the capacitive element to be tested at the bottom is inserted into the inside of the docking channel 22, the leads can be brought into contact and fit with the first electrode plate 34 and the second electrode plate 35 at the bottom of the test module 5, so as to connect the current for detection and processing. At the same time, the knob 30 at the top can also be controlled to drive the connecting rod 29 to rotate. The connecting rod 29 drives the insulating plate 33 at the bottom 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 capacitive element to be tested always contact different electrode plates to achieve the purpose of testing. And the pressurizing spring 31 also always avoids the problem of separation between the electrode plates and the leads by applying a downward pressure to the first electrode plate 34 and the second electrode plate 35 at the bottom.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms.

[0031] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard 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 electrohydrodynamic 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 component (4), and a test module (5). Side baffles (2) are welded to both ends of the detection frame (1). A lifting mechanism (3) is installed inside the side baffles (2). A test slot (15) is formed on the surface of the lifting mechanism (3) for placing the capacitance element to be tested. The number of the test slots (15) is two. A moving component (4) is installed on the top of the lifting mechanism (3). The moving component (4) performs a translational movement along the lifting mechanism (3). A test module (5) is embedded inside the moving component (4). A first electrode plate (34) and a second electrode plate (35) are arranged at the bottom of the test module (5). The bottom of the test module (5) is used for docking and fitting with the lead part of the capacitance to be tested. The test module (5) moves to the upper regions of the two test slots (15) respectively through the moving component (4).

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

3. The capacitance detection device for the nozzle of an electrohydrodynamic 3D printer according to claim 2, characterized in that: 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. Bases (36) are arranged at both ends of the cooling slot (6). The bottom of the spring rod (8) is embedded into the inside of the base (36). The spring rod (8) is used to support the lifting mechanism (3).

4. The capacitance detection device for the electrohydrodynamic 3D printer nozzle according to claim 2, characterized in that: The lifting mechanism (3) includes a support plate (12), a test slot (15), and a step (13). The step (13) is integrally formed at the middle position on the surface of the support plate (12). The test slot (15) is formed on both sides of the support plate (12). A temperature sensing module (16) is embedded at the inner bottom of each test slot (15).

5. The capacitance detection device of an electrohydrodynamic 3D printer nozzle according to claim 4, characterized in that: Inclined plates (14) are arranged on both sides of the step (13). Lifting sleeves (17) are welded to both ends of the surface of the support plate (12). The top of the spring rod (8) is embedded into the inside of 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, the heat conducting ring (18) is used to be embedded into the inside of the cooling slot (6).

6. The capacitance detection device of an electrohydrodynamic 3D printer nozzle according to claim 4, characterized in that: The moving component (4) includes a moving plate (19), a docking channel (22), and a pressing rod (24). A docking channel (22) is formed in the middle of the moving plate (19). The test module (5) is embedded into the inside of the docking channel (22). A threaded sleeve (20) and a guide sleeve (21) are welded to the surface of the moving plate (19).

7. The capacitance detection device of an electrohydrodynamic 3D printer nozzle 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). A pressing rod (24) is welded to the bottom of the moving plate (19).

8. The capacitance detection device for the nozzle of an electrohydrodynamic 3D printer according to claim 7, characterized in that: A roller (23) is connected to the bottom of each of the pressing rods (24). The moving component (4) presses on the lifting mechanism (3) through the rollers (23) at the bottom. The threaded sleeve (20) and the guiding sleeve (21) are respectively arranged on both sides of the docking channel (22), and the top and bottom of the docking channel (22) are both in an open state.

9. The capacitance detection device for the nozzle of an electrohydrodynamic 3D printer according to claim 6, characterized in that: The testing 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 end of the inner wall of the docking channel (22). A partition plate (27) is integrally formed in the middle of the support plate (26). A rotating channel (28) is welded to the top of the partition plate (27). A connecting rod (29) is inserted into the middle of the rotating channel (28).

10. The capacitance detection device of an electrohydrodynamic 3D printer nozzle according to claim 9, characterized in that: A knob (30) is integrally formed at the top of the connecting rod (29). A pressure increasing spring (31) is sleeved at 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 as a whole with the insulating plate (33). The bottom of the pressure increasing 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).

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