High-precision current transformer glue pouring device

Abstract

The invention discloses a high-precision current transformer glue pouring device which comprises an operation table, a transmission frame is arranged at the rear end of the operation table, a transmission end block of a transmission plate is installed on the transmission frame, a transmission pipe and a heat preservation pipe arranged on the outer side of the transmission pipe in a sleeving mode are arranged at the bottom of the transmission plate, reset frames are arranged on the outer side of the transmission pipe, and a blocking frame used for blocking and cleaning remaining materials is arranged between the reset frames. A pushing frame abutting against the outer wall of the blocking frame is clamped in the heat preservation pipe and moves in the conveying direction of the heat preservation pipe. Compared with the prior art, through the dynamic matching design of the blocking frame and the conical liquid discharging pipe, the rotary blocking action is achieved under the driving of the reset frame, an adsorption plate of the buffering pressing plate cleans residual colloid on the outer wall of the liquid discharging pipe in real time, an elastic ring at the top of the buffering frame extrudes and cleans the edge of the liquid discharging pipe, and a deformation separation mechanism of a movable clamping shaft is combined; and glue dripping blocking, immediate removal of residual glue and periodic stripping of a solidified glue layer can be synchronously completed.

Description

Technical Field

[0001] This invention relates to the field of electronic component manufacturing technology, specifically to a high-precision current transformer potting device. Background Technology

[0002] Electrical transformers, also known as instrument transformers, are a general term encompassing both current and voltage transformers. They convert high voltage to low voltage and large current to small current, and are used in measurement or protection systems. Low-voltage current transformers are widely used in many aspects of modern industry, agriculture, transportation, national defense, and daily life.

[0003] In the processing of electrical transformers, glue is required. However, due to the small gap between the coil and the outer casing, insufficient glue flow or excessively fast glue application can easily trap air bubbles, leading to a decrease in insulation performance. Furthermore, the glue generates internal stress during curing and shrinkage, causing cracking or deformation. Additionally, during the glue application process, prolonged operation can leave residue on the glue nozzle, affecting subsequent glue delivery and compromising the consistency and accuracy of glue application. This necessitates shortening the equipment cleaning and maintenance cycle, increasing the overall processing cost. While existing recycling equipment offers some recycling capabilities, subsequent cleaning is also cumbersome. Therefore, we propose a high-precision current transformer glue application device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision current transformer potting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-precision current transformer potting device, comprising,

[0006] The operating table has a transmission frame at its rear end, on which the transmission end block of the transmission plate is installed. The bottom of the transmission plate is provided with a transmission pipe and an insulation pipe sleeved on its outside.

[0007] The transmission pipe is equipped with a reset frame on its outer side, and a blocking frame for blocking and cleaning excess material is provided between the reset frames. A pusher frame is installed inside the insulation pipe, which abuts against the outer wall of the blocking frame. The pusher frame moves along the transmission direction of the insulation pipe to control the blocking frame to block the glue dripping from the bottom of the transmission pipe. When it is necessary to apply glue to the current transformer, the current transformer can be evenly placed on the support frame inside the limit box. Under the action of the subsequent transmission frame, the transmission pipe can be transported to the top of the limit box, which can evenly apply glue to the current transformer. With the cooperation of the blocking frame, excess glue dripping can be reduced, ensuring the accuracy of material feeding.

[0008] Preferably, the bottom of the transmission pipe is provided with a conical drainage pipe, the cross-section of the blocking frame is semi-circular and multiple heat dissipation metal plates are provided on the outside, a connecting plate is installed inside the blocking frame, and a buffer pressure plate is installed on the bottom of the connecting plate near the conical drainage pipe. An adsorption plate is installed on the buffer pressure plate to adsorb excess glue from the conical drainage pipe during the transmission process. Through the synergistic effect of the conical drainage pipe, the blocking frame and the buffer pressure plate, the glue flow rate is precisely controlled, dripping residue is reduced and consistent glue application is ensured.

[0009] A separation plate is installed on the connecting plate. The separation plate has multiple straight grooves, and a movable retaining shaft is engaged at the edge of the straight groove. The movable retaining shaft is located inside the straight groove and has an arc-shaped shaft for blocking adhesive adhesion. The pusher and the blocking frame are linked to achieve automatic interception and cleaning, reduce the need for manual intervention, and ensure the stability of continuous operation.

[0010] Preferably, the connecting plate is internally fitted with multiple buffer frames. The buffer frames are rectangular and have an elastic ring at the top, which are used to squeeze the bottom edge of the conical drain pipe to reduce the amount of glue residue inside and extend the maintenance cycle of the equipment.

[0011] Preferably, the bottom of the outer wall of the blocking frame is provided with a friction belt, and the side of the pusher frame that is inclined is provided with a friction pad. The friction pad abuts against the friction belt. The pusher frame has a sliding groove opened above the friction pad, and a sliding block is locked in the sliding groove. The sliding block is made of elastic material. The rear end of the blocking frame is provided with a locking block. The locking block abuts against the sliding block and is used to assist in limiting the rotation of the blocking frame. A blocking shaft is locked on the pusher frame. The blocking shaft is locked in the sliding groove and is used to control the movement of the sliding block. It can move with the help of the heat insulation pipe, drive the pusher frame to pull the blocking frame, and intercept the bottom of the conical drain pipe to reduce the overflow and dripping of excess glue.

[0012] Preferably, a fixing ring is provided on the outer wall of the heat insulation pipe, an electric heating wire is provided inside the fixing ring, a transmission groove is provided on one side of the fixing ring, and a conveying end block is movably fixed inside the transmission groove. A positioning rod is provided at the bottom of the conveying end block, and the positioning rod is used to assist in positioning calibration.

[0013] The insulation tube is used to control the temperature change curve during the drainage process. It can also control the distance between the insulation tube and the current transformer according to the solidification time requirements. The insulation tube has a built-in heating wire to maintain the fluidity of the adhesive and the curing efficiency, prevent uneven solidification caused by temperature difference, and adapt to the curing requirements of different adhesives.

[0014] Preferably, the top of the operating table is provided with a limiting box, which is located directly below the transmission pipe. Multiple support frames are installed inside the limiting box, and multiple limiting rods are inserted into the support frames. Multiple diversion channels are opened on the support frames. The diversion channels are composed of multiple sets of symmetrically arranged arc-shaped channels. Each set of diversion channels is located on both sides of the limiting rod, which can discharge excess glue during the glue dispensing process along the diversion channels, reducing glue solidification and securing the current transformer on the support frame for subsequent unloading.

[0015] Preferably, a magnetic block is attached to the top of the limiting rod, and a docking frame is attached to the bottom of the limiting rod. The docking frame can correspond to the positioning rod and is used to assist in calibration during the gluing process. The magnetic limiting rod and the positioning rod are mechanically linked to quickly align the position of the current transformer, reduce manual adjustment time, and improve production efficiency.

[0016] Preferably, the transfer plate is equipped with liquid inlet valves at both ends for connection to external transfer equipment, and a fixed pump is installed on the top of the transfer plate for glue transfer.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention achieves a rotating blocking action under the drive of the reset frame by dynamically cooperating the blocking frame and the conical drain pipe: the adsorption plate of the buffer pressure plate cleans the residual colloid on the outer wall of the drain pipe in real time, while the elastic ring at the top of the buffer frame squeezes and cleans the edge of the drain pipe. Combined with the deformation separation mechanism of the movable clamp shaft, the glue drip blocking, the immediate removal of residual colloid and the periodic peeling of the solidified glue layer can be completed simultaneously.

[0019] 2. This invention achieves basic heating and insulation by using a fixed ring with a built-in heating wire, while the variable distance adjustment mechanism can dynamically adjust the distance between the insulation tube and the workpiece according to the glue curing time requirements.

[0020] 3. The present invention uses a pusher frame that is driven by the friction belt of the friction pad and the blocking frame, and a sliding block elastic limiting mechanism to form a reciprocating motion. During the glue dispensing interval, the blocking frame is automatically pushed to the bottom of the drain pipe to form a physical interception, reducing the impact on production.

[0021] 4. This invention uses the magnetic block at the top of the limiting plug to form a magnetic positioning with the docking frame, and together with the positioning plug at the bottom of the insulation tube, it forms a three-point positioning system, which can ensure the accuracy of the glue pouring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a partial structural diagram of the transmission frame of the present invention;

[0024] Figure 3 This is a schematic diagram of the exploded structure of the transmission pipe and insulation pipe of the present invention.

[0025] Figure 4 This is a schematic diagram of the outer structure of the transmission tube of the present invention;

[0026] Figure 5 This is a schematic diagram of the barrier structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the limiting box structure of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged view of a portion of point A in the middle;

[0029] In the diagram: 1. Operating table; 2. Transmission frame; 3. Limiting box; 4. Transmission pipe; 5. Insulation pipe; 21. Transmission end block; 22. Transmission plate; 23. Fixed pump; 24. Inlet valve; 31. Support frame; 32. Limiting rod; 33. Connecting frame; 34. Diverter; 41. Reset frame; 42. Blocking frame; 421. Snap-fit ​​block; 43. Connecting plate; 44. Buffer frame; 45. Separating plate; 451. Movable locking shaft; 46. Buffer pressure plate; 51. Fixing ring; 52. Pushing frame; 521. Blocking shaft; 53. Conveying end block; 54. Positioning rod; 55. Friction pad; 56. Sliding block. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-7 This invention provides a technical solution: a high-precision current transformer potting device, comprising,

[0032] The operating table 1 has a transmission frame 2 at its rear end. The transmission frame 2 is equipped with a transmission end block 21 of a transmission plate 22. The bottom of the transmission plate 22 is equipped with a transmission pipe 4 and an insulation pipe 5 sleeved on its outside.

[0033] The transmission pipe 4 is equipped with a reset frame 41 on the outside, and a blocking frame 42 for blocking and cleaning residual material is provided between the reset frames 41. The insulation pipe 5 is fitted with a pusher frame 52 that abuts against the outer wall of the blocking frame 42. The pusher frame 52 moves along the transmission direction of the insulation pipe 5 and is used to control the blocking frame 42 to block the glue dripping from the bottom of the transmission pipe 4. When it is necessary to fill the current transformer with glue, the current transformer can be evenly placed on the support frame 31 inside the limit box 3. Under the action of the subsequent transmission frame 2, the transmission pipe 4 can be transported to the top of the limit box 3, so that the current transformer can be evenly filled with glue. With the cooperation of the blocking frame 42, excess glue dripping can be reduced and the accuracy of material feeding can be guaranteed.

[0034] like Figure 4 and Figure 5 As shown, in order to reduce glue residue during the conveying process, a conical drain pipe is provided at the bottom of the conveying pipe 4. The blocking frame 42 has a semi-circular cross-section and multiple heat dissipation metal plates on the outside. A connecting plate 43 is installed inside the blocking frame 42. A buffer pressure plate 46 is installed on the bottom of the connecting plate 43 near the conical drain pipe. An adsorption plate is installed on the buffer pressure plate 46 to adsorb excess glue in the conical drain pipe during the conveying process. With the help of the rotation of the blocking frame 42, it can block the glue at the bottom of the conical drain pipe to assist in collection, reduce the dripping of excess glue residue, prevent inaccurate glue dispensing, and ensure the processing quality of the equipment.

[0035] A separation plate 45 is installed on the connecting plate 43. The separation plate 45 has multiple straight grooves, and a movable retaining shaft 451 is engaged at the edge of the straight groove. The movable retaining shaft 451 is located inside the straight groove and has an arc-shaped shaft for blocking glue adhesion. As the blocking frame 42 moves in a circle, the adsorption plate on the surface of the buffer pressure plate 46 can clean the outside of the conical drain pipe to clean glue residue. As the blocking frame 42 moves, the conical drain pipe can be positioned directly above the blocking frame 42 to recover excess glue.

[0036] Additionally, it should be noted that as the blocking frame 42 reciprocates, the conical drain pipe interacts with the movable retaining shaft 451. While assisting in the discharge of adhesive, it also allows the arc-shaped shaft to deform under external force, enabling the adhesive solidified at the bottom of the separation plate 45 to detach. This allows for cleaning each time an adhesive can be detached, reducing the difficulty of cleaning due to excessive subsequent adhesive accumulation and effectively improving the maintenance efficiency of the equipment.

[0037] like Figure 5As shown, in order to further reduce the residue of glue in the conical drain pipe, multiple buffer frames 44 are installed inside the connecting plate 43. The buffer frame 44 is rectangular and has an elastic ring at the top, which is used to squeeze the bottom edge of the conical drain pipe to reduce the amount of glue residue inside. With the cooperation of the blocking frame 42, the elastic ring at the top of the buffer frame 44 can contact the conical drain pipe to clean it, reduce the amount of glue residue, and squeeze out the excess glue inside, thereby controlling the glue delivery accuracy.

[0038] like Figure 4 As shown, the bottom of the outer wall of the blocking frame 42 is provided with a friction belt, and the side of the pusher frame 52 that is inclined is provided with a friction pad 55. The friction pad 55 abuts against the friction belt. The pusher frame 52 has a sliding groove along the direction of the friction pad 55, and a sliding block 56 is locked in the sliding groove. The sliding block 56 is made of elastic material. The rear end of the blocking frame 42 is provided with a locking block 421, which abuts against the sliding block 56 and is used to assist in limiting the rotation of the blocking frame 42. The pusher frame 52 is provided with a blocking shaft 521, which is locked in the sliding groove and is used to control the movement stroke of the sliding block 56. During the transmission of the external insulation pipe 5, the pusher frame 52 can move along the insulation pipe 5 on the transmission pipe 4, which can push the blocking frame 42 to the bottom of the conical drain pipe to intercept the excess glue.

[0039] like Figure 2 and Figure 3 As shown, in order to ensure that the glue does not solidify rapidly during the transmission process, a fixing ring 51 is installed on the outer wall of the insulation pipe 5. The fixing ring 51 is equipped with a heating wire inside, which can control the temperature inside the insulation pipe 5, so that the glue can be discharged smoothly, maintain the temperature of the surrounding environment, and reduce the situation where the glue solidifies rapidly due to excessive temperature difference during the transmission process. A transmission groove is opened on one side of the fixing ring 51, and a conveying end block 53 is movably installed inside the transmission groove. A positioning rod 54 is provided at the bottom of the conveying end block 53. The positioning rod 54 is used to assist in positioning calibration. The positioning rod 54 can be installed inside the docking frame 33 to cooperate with the support frame 31 to calibrate the current transformer and control the accuracy of the injection.

[0040] The insulation tube 5 is used to control the temperature change curve during the drainage process. It can control the distance between the insulation tube 5 and the current transformer according to the solidification time requirements. It can generate a fixed temperature during the production process. The efficiency of the heating wire in the insulation tube 5 can be adjusted for different depths of glue pouring to ensure that the temperature does not drop too quickly and affect the glue solidification.

[0041] like Figure 6 and Figure 7As shown, in order to reduce the possibility of accidental overflow during the glue discharge process, a limit box 3 is provided on the top of the operating table 1. The limit box 3 is located directly below the transmission pipe 4. Multiple support frames 31 are installed inside the limit box 3. Multiple limit rods 32 are inserted on the support frames 31. Multiple diversion channels 34 are opened on the support frames 31. The diversion channels 34 are composed of multiple sets of symmetrically arranged arc-shaped channels. Each diversion channel 34 is located on both sides of the limit rods 32. The diversion channels 34 can guide the discharge.

[0042] like Figure 6 and Figure 7 As shown, in order to quickly position the current transformer and ensure the accuracy of subsequent processing, a magnetic block is attached to the top of the limiting rod 32 and a docking frame 33 is attached to the bottom of the limiting rod 32. The docking frame 33 can correspond to the positioning rod 54 and is used to assist in calibration during the glue application process. By adjusting the position of the docking frame 33, it can correspond to the positioning rod 54 at the bottom of the insulation tube 5, which is used to assist in calibration of the accumulation and ensure the glue dispensing efficiency of the equipment.

[0043] like Figure 2 As shown, the two ends of the transmission plate 22 are equipped with liquid inlet valves 24 that are connected to external transmission equipment, and the top of the transmission plate 22 is equipped with a fixed pump 23, which is used for glue transmission.

[0044] Working principle: First, when it is necessary to apply glue to the current transformer, the current transformer can be evenly stacked on the support frame 31 inside the limit box 3. Under the action of the subsequent transmission frame 2, the transmission pipe 4 can be transported to the top of the limit box 3, so that the current transformer can be evenly glued. With the cooperation of the blocking frame 42, excess glue dripping can be reduced, ensuring the accuracy of the material feeding. When positioning the current transformer, the current transformer can be placed on the support frame 31. With the cooperation of the limit rod 32 and the magnetic block, the current transformer can be quickly positioned, which is convenient for subsequent glue application. This reduces the impact of the existing equipment shifting during the stacking of current transformers on the quality of glue application.

[0045] Then, when it is necessary to apply glue to the current transformer, the transmission pipe 4 can be moved to drive the positioning rod 54 at the bottom of the insulation pipe 5 to be locked into the docking frame 33 for calibrating the position of the current transformer. This allows for accurate glue application to the current transformer. Furthermore, depending on the size of the current transformer and the required curing time of the glue inside, the distance between the insulation pipe 5 and the current transformer can be controlled to extend the curing time of the glue. This reduces the internal stress caused by the rapid temperature change of the glue during the curing process, which could lead to cracking or deformation. At the same time, the insulation pipe 5 can reduce the occurrence of solidification inside the conical drain pipe, thereby controlling the stability of glue delivery.

[0046] Finally, after the glue is poured, the insulation pipe 5 can move downwards. With the cooperation of the pusher 52, the friction pad 55 abuts against the friction belt, which can drive the blocking frame 42 to rotate at a certain angle. The locking block 421 and the sliding locking block 56 abut against each other, which can limit the flipping angle of the blocking frame 42. During the flipping process of the blocking frame 42, the buffer plate 46 can abut against the bottom of the conical drain pipe, and the excess glue can be absorbed by the adsorption plate. After the flipping is completed, the pusher 52 moves further, and the blocking frame 42 can be fixed at the angle of the locking block 421 and the sliding locking block 56. As the sliding locking block 56 moves on the slide groove, it can drive the reset frame 41 to move. This allows the rubber on the top of the buffer frame 44 to squeeze and rub against the bottom of the conical drain pipe, further squeezing out the excess glue inside and reducing the situation of excess glue residue dripping during the glue pouring process.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision current transformer potting device, characterized in that: include, The operating table (1) has a transmission frame (2) at its rear end. The transmission frame (2) is equipped with a transmission end block (21) of a transmission plate (22). The bottom of the transmission plate (22) is provided with a transmission pipe (4) and an insulation pipe (5) sleeved on its outside. Among them, a reset frame (41) is provided on the outside of the transmission pipe (4), and a blocking frame (42) for blocking and cleaning residual material is provided between the reset frames (41). A pusher (52) that abuts against the outer wall of the blocking frame (42) is installed inside the insulation pipe (5). The pusher (52) moves along the transmission direction of the insulation pipe (5) to control the blocking frame (42) to block the glue dripping from the bottom of the transmission pipe (4).

2. The high-precision current transformer potting device according to claim 1, characterized in that: The bottom of the transmission pipe (4) is provided with a conical drain pipe. The cross section of the blocking frame (42) is semi-circular and multiple heat dissipation metal plates are provided on the outside. A connecting plate (43) is installed inside the blocking frame (42). A buffer pressure plate (46) is installed on the bottom of the connecting plate (43) near the direction of the conical drain pipe. An adsorption plate is installed on the buffer pressure plate (46) for adsorbing excess glue from the conical drain pipe during the transmission process. A separation plate (45) is installed on the connecting plate (43). The separation plate (45) has multiple straight grooves, and a movable retaining shaft (451) is clamped at the edge of the straight groove. The movable retaining shaft (451) is located inside the straight groove and has an arc-shaped shaft for blocking adhesive adhesion.

3. The high-precision current transformer potting device according to claim 2, characterized in that: The connecting plate (43) is equipped with multiple buffer frames (44). The buffer frames (44) are rectangular and have an elastic ring at the top, which is used to squeeze the bottom edge of the conical drain pipe to reduce the amount of glue residue inside.

4. The high-precision current transformer potting device according to claim 1, characterized in that: The bottom of the outer wall of the blocking frame (42) is provided with a friction belt. The side of the pusher frame (52) is provided with a friction pad (55) which is inclined. The friction pad (55) abuts against the friction belt. The pusher frame (52) has a sliding groove above the friction pad (55) and a sliding block (56) is locked in the groove. The sliding block (56) is made of elastic material. The rear end of the blocking frame (42) is provided with a locking block (421). The locking block (421) abuts against the sliding block (56) and is used to assist in limiting the movement of the blocking frame (42) after rotation. The pusher frame (52) is provided with a blocking shaft (521). The blocking shaft (521) is locked in the groove and is used to control the movement of the sliding block (56).

5. The high-precision current transformer potting device according to claim 1, characterized in that: A fixing ring (51) is fastened on the outer wall of the heat-insulating pipe (5). A heating wire is provided inside the fixing ring (51). A transmission groove is opened on one side of the fixing ring (51), and a conveying end block (53) is movably fastened inside the transmission groove. A positioning rod (54) is provided at the bottom of the conveying end block (53). The positioning rod (54) is used to assist in positioning calibration. The insulation pipe (5) is used to control the temperature change curve during the liquid discharge process and to control the distance between the insulation pipe (5) and the transformer according to the solidification time requirements.

6. The high-precision current transformer potting device according to claim 1, characterized in that: The top of the operating table (1) is provided with a limiting box (3), which is located directly below the transmission pipe (4). The limiting box (3) is equipped with multiple support frames (31), and multiple limiting rods (32) are inserted on the support frames (31). Multiple diversion channels (34) are opened on the support frames (31). The diversion channels (34) are composed of multiple sets of symmetrically arranged arc-shaped channels. Each set of diversion channels (34) is located on both sides of the limiting rods (32).

7. A high-precision current transformer potting device according to claim 6, characterized in that: The top of the limiting rod (32) is fitted with a magnetic block, and the bottom of the limiting rod (32) is fitted with a docking frame (33). The docking frame (33) can correspond to the positioning rod (54) and is used for auxiliary calibration during the gluing process.

8. The high-precision current transformer potting device according to claim 1, characterized in that: The transfer plate (22) is equipped with liquid inlet valves (24) at both ends for connection with external transfer equipment, and a fixed pump (23) is installed on the top of the transfer plate (22). The fixed pump (23) is used for glue transfer.

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