Automatic liquid injection process for SMD (Surface Mount Device) aluminum electrolytic capacitor

Abstract

The invention relates to the technical field of capacitor liquid injection, in particular to an automatic liquid injection process for a patch aluminum electrolytic capacitor, which comprises a workbench, a fixing mechanism, a liquid injection mechanism, a material receiving mechanism and a plurality of weighing sensors, and is characterized in that the fixing mechanism comprises a rotating assembly, a moving assembly, a plurality of movable clamps and a plurality of fixed clamps; the liquid injection mechanism comprises a driving assembly, a plurality of filling barrels, a plurality of liquid injection pipes, a plurality of extrusion assemblies and a conveying assembly, the material receiving mechanism comprises a bearing plate, a transmission assembly and a reset assembly, the bearing plate is located below the plurality of liquid injection pipes, and electrolyte entering the SMD aluminum electrolytic capacitor can be weighed in the liquid injection process through a weighing sensor; and after a proper amount of electrolyte is injected, the upper part of the surface-mounted aluminum electrolytic capacitor can be shielded by utilizing the bearing plate, so that the problem that the electrolyte in the liquid injection pipe continuously drips into the surface-mounted aluminum electrolytic capacitor to cause excessive liquid injection is avoided, quantitative liquid injection can be realized, and errors are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor liquid injection, in particular to an automatic liquid injection process for a chip aluminum electrolytic capacitor. Background Art

[0002] SMD aluminum electrolytic capacitors are a common electronic component, mainly used to provide capacitance in electronic devices. SMD aluminum electrolytic capacitors include two conductive electrodes. The anode is made of specially treated aluminum foil, and its surface area is significantly enlarged by electrochemical corrosion treatment. The cathode is made of electrolyte. This design enables aluminum electrolytic capacitors to store a large amount of charge.

[0003] The electrolyte is the core component of the electrolytic capacitor. The electrolyte of the electrolytic capacitor is usually directly injected into the capacitor. In the prior art, when injecting the SMD aluminum electrolytic capacitor, it is impossible to inject the electrolyte quantitatively. Too much or too little electrolyte will affect the service life of the capacitor. If the injection amount is too much, it will increase the burden on the capacitor and shorten the life of the capacitor; if the injection amount is insufficient, it will affect the insulation performance of the capacitor. To address this problem, an automatic injection process for SMD aluminum electrolytic capacitors is now provided. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic liquid injection process for chip aluminum electrolytic capacitors to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An automatic liquid injection process for chip aluminum electrolytic capacitors includes a workbench, a fixing mechanism, a liquid injection mechanism, a material receiving mechanism and a plurality of weighing sensors, wherein the plurality of weighing sensors are equidistantly installed on the top of the workbench; The fixing mechanism includes a rotating assembly, a moving assembly, a plurality of movable clamps and a plurality of fixed clamps, each of which is located at one side of a weighing sensor and fixed on a workbench, each of which is located at a side of a weighing sensor away from the fixed clamp, the moving assembly is installed between the plurality of movable clamps, and the driving assembly is located between the workbench and the moving assembly; The injection mechanism includes a driving assembly, a plurality of filling cylinders, a plurality of injection tubes, a plurality of extrusion assemblies and a conveying assembly, each filling cylinder is located above a weighing sensor, each injection tube is installed at the bottom end of a filling cylinder, each extrusion assembly is arranged above an injection tube, the driving assembly is installed between the plurality of extrusion assemblies, and the conveying assembly is located at one side of the plurality of filling cylinders; The material receiving mechanism includes a receiving plate, a transmission assembly and a reset assembly. The receiving plate is located below the multiple injection tubes, the transmission assembly is located between the receiving plate and one of the movable clamps, and the reset assembly is located between the receiving plate and the multiple extrusion assemblies.

[0006] As a further solution of the present invention: the rotating assembly includes a first motor, a driving sprocket, a driven sprocket, a chain and a cross plate, the cross plate is fixedly installed on one side of the workbench, the first motor is fixedly installed on the top of the workbench, the output end of the first motor is fixedly connected to the driving sprocket, the driven sprocket is rotatably arranged above the cross plate, and the chain is sleeved on the driving sprocket and the driven sprocket.

[0007] As a further solution of the present invention: the moving assembly includes a moving plate, a turntable, a hinged rod and two guide rods, the two guide rods are symmetrically fixed on the top of the workbench, the moving plate is slidably set on the two guide rods, one end of each movable clamp away from the fixed clamp is fixedly connected to the moving plate, the turntable is fixed to the top of the driven sprocket, one end of the hinged rod is hinged to the moving plate, and the other end of the hinged rod is hinged to the turntable.

[0008] As a further solution of the present invention: each extrusion assembly includes an L-shaped plate, a wedge-shaped cone, a push rod, a push plate, an end plate, a ball and a first spring. The L-shaped plate is fixedly arranged on the top of the workbench, the filling cylinder is fixedly arranged on one side of the L-shaped plate, the wedge-shaped cone is rotatably arranged on the top of the L-shaped plate, the push plate is slidably arranged inside the filling cylinder, a limit plate is fixed on one side of the L-shaped plate, the push rod is slidably arranged on the limit plate, one end of the push rod passes through the filling cylinder and is fixedly connected to the push plate, the other end of the push plate is fixedly connected to the end plate, the ball is installed on the top of the end plate, and the surface of the ball is in contact with the wedge-shaped cone, the first spring is sleeved on the push rod, and the two ends of the first spring are respectively connected to the end plate and the limit plate.

[0009] As a further solution of the present invention: the driving assembly includes a first bevel gear, a second bevel gear, a second motor and a plurality of synchronous components, each of which is located between two adjacent wedge-shaped cones, the second motor is fixedly mounted on the top of one of the L-shaped plates, the second bevel gear is fixed to the output end of the second motor, the first bevel gear is fixed to the top of one of the wedge-shaped cones, and the first bevel gear and the second bevel gear are meshed with each other.

[0010] As a further solution of the present invention: each synchronous component includes a transmission belt and two transmission wheels, the two transmission wheels are respectively fixed on the top ends of two adjacent wedge-shaped cones, and the transmission belt is sleeved between the two transmission wheels.

[0011] As a further solution of the present invention: the transmission assembly includes a moving rod, a pull rope, multiple fixed frames and a plurality of guide wheels, the multiple fixed frames are all fixed on the top of the workbench, the multiple guide wheels are rotatably set on the multiple fixed frames, the moving rod is fixedly installed on one side of one of the movable clamps, one end of the pull rope is connected to the moving rod, and the other end of the pull rope is passed around the plurality of guide wheels and connected to the moving plate.

[0012] As a further solution of the present invention: the reset components include two second springs, multiple sliding rods and multiple connecting plates, each connecting plate is fixedly installed between two adjacent L-shaped plates, each sliding rod is slidably set on a connecting plate, one end of each sliding rod is connected to the receiving plate, two second springs are respectively mounted on the outside of two of the sliding rods, and the two ends of each second spring are respectively connected to the receiving plate and the connecting plate.

[0013] As a further solution of the present invention: the conveying assembly includes a mounting plate, multiple storage tanks and multiple liquid inlet pipes, the mounting plate is fixedly mounted on one side of the multiple L-shaped plates away from the filling barrel, the multiple storage tanks are fixed on one side of the mounting plate, one end of each liquid inlet pipe is connected to the bottom end of the mounting plate, and the other end of each liquid inlet pipe is connected to the side wall of one end of the filling barrel close to the injection pipe.

[0014] As a further solution of the present invention: a mounting seat is fixed to a side of each fixed clamp away from the movable clamp, and each mounting seat is fixedly connected to the workbench.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. An automatic liquid injection process for a chip aluminum electrolytic capacitor of the present invention can weigh the electrolyte entering the chip aluminum electrolytic capacitor during the liquid injection process by setting a weighing sensor. After an appropriate amount of electrolyte is injected, the upper part of the chip aluminum electrolytic capacitor can be shielded by a receiving plate to prevent the electrolyte in the injection tube from continuing to drip into the interior of the chip aluminum electrolytic capacitor and causing excessive liquid injection. Quantitative liquid injection can be achieved and liquid injection errors can be reduced.

[0016] 2. The automatic liquid injection process of a chip aluminum electrolytic capacitor of the present invention can fix the chip aluminum electrolytic capacitor to be injected above the workbench by setting a fixing mechanism, thereby ensuring the stable placement of the chip aluminum electrolytic capacitor during injection. At the same time, when the fixing mechanism fixes the chip aluminum electrolytic capacitor, it can drive the receiving plate to move, so that the receiving plate can move to one side of the injection tube to avoid blocking the injection tube and facilitate subsequent injection operations.

[0017] 3. In the automatic liquid injection process for a chip aluminum electrolytic capacitor of the present invention, after a suitable amount of electrolyte is injected and the fixing mechanism releases the fixation of the chip aluminum electrolytic capacitor, the receiving plate can be moved again between the liquid injection tube and the chip aluminum electrolytic capacitor to shield the chip aluminum electrolytic capacitor, improve the liquid injection accuracy, and have high synchronization; 4. The automatic liquid injection process for chip aluminum electrolytic capacitors of the present invention forms a linkage effect between the fixing mechanism and the receiving mechanism by setting a transmission component, that is, the synchronous operation of the two mechanisms can be achieved by using one driving source. On the one hand, the mechanism operation synchronization during the liquid injection process is high, and on the other hand, the number of driving sources used can be reduced, thereby reducing power consumption and costs.

[0018] 5. The automatic liquid injection process for chip aluminum electrolytic capacitors of the present invention, by setting a liquid injection mechanism, enables multiple filling cylinders to simultaneously inject liquid into multiple chip aluminum electrolytic capacitors, thereby realizing batch liquid injection with high liquid injection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A.

[0021] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure of part B.

[0022] Figure 4 The structure of the present invention is schematically shown Figure 2 .

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of part C.

[0024] Figure 6 It is a structural schematic diagram of the L-shaped plate in the present invention.

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part D.

[0026] Figure 8 It is a side structural schematic diagram of the present invention.

[0027] Fig. 9 It is a schematic diagram of the structure of the filling cylinder in the present invention.

[0028] Fig.10 It is a schematic diagram of the internal structure of the filling cylinder in the present invention.

[0029] Among them: 11, workbench; 12, weighing sensor; 13, first motor; 14, driving sprocket; 15, driven sprocket; 16, chain; 17, turntable; 18, hinged rod; 19, moving plate; 20, movable clamp; 21, guide rod; 22, mounting seat; 23, fixed clamp; 24, L-shaped plate; 25, filling cylinder; 26, injection tube; 27, push plate; 28, push rod; 29, wedge-shaped round table; 30, end plate; 31. Ball bearing; 32. First spring; 33. Drive wheel; 34. Drive belt; 35. First bevel gear; 36. Second bevel gear; 37. Second motor; 38. Mounting plate; 39. Storage tank; 40. Liquid inlet pipe; 41. Receiver plate; 42. Connecting plate; 43. Sliding rod; 44. Second spring; 45. Pull rope; 46. Fixed frame; 47. Guide wheel; 48. Moving rod; 49. Horizontal plate; 50. Limiting plate. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] The present invention provides the following preferred embodiments: Embodiment 1, as Figure 1-Figure 10 As shown, an automatic liquid injection process for a chip aluminum electrolytic capacitor includes a workbench 11, a fixing mechanism, a liquid injection mechanism, a material receiving mechanism and a plurality of weighing sensors 12. The plurality of weighing sensors 12 are equidistantly installed on the top of the workbench 11. The weighing sensor 12 is a device that converts a mass signal into a measurable electrical signal output. The weighing sensor 12 is a prior art and will not be specifically described here. The weighing sensor 12 can firstly measure the weight of the chip aluminum electrolytic capacitor before liquid injection. During the liquid injection process, the weighing sensor 12 can detect the weight of the chip aluminum electrolytic capacitor in real time. When a set amount of electrolyte is injected, the weighing sensor 12 sends a signal to a controller. The fixing mechanism includes a rotating assembly, a moving assembly, a plurality of movable clips 20 and a plurality of fixed clips 23, each of which is located on one side of a weighing sensor 12 and fixed on a workbench 11, each of which is located on a side of a weighing sensor 12 away from the fixed clip 23, the moving assembly is installed between the plurality of movable clips 20, the driving assembly is located between the workbench 11 and the moving assembly, and when it is necessary to fix the chip aluminum electrolytic capacitor, the rotating assembly can drive the moving assembly to work, so that the plurality of movable clips 20 can move synchronously, and the plurality of fixed clips 23 can be used to fix the chip aluminum electrolytic capacitor; The injection mechanism includes a driving assembly, a plurality of filling cylinders 25, a plurality of injection tubes 26, a plurality of extrusion assemblies and a conveying assembly, each filling cylinder 25 is located above a weighing sensor 12, each injection tube 26 is installed at the bottom end of a filling cylinder 25, each extrusion assembly is arranged above an injection tube 26, the driving assembly is installed between the plurality of extrusion assemblies, and the conveying assembly is located on one side of the plurality of filling cylinders 25; The conveying assembly can convey electrolyte to the interior of the filling cylinder 25, and the driving assembly can drive multiple extrusion assemblies to operate synchronously, so that the electrolyte inside the filling cylinder 25 can be squeezed out through the injection tube 26 to achieve injection of the chip aluminum electrolytic capacitor; The material receiving mechanism includes a receiving plate 41, a transmission assembly and a reset assembly. The receiving plate 41 is located below the plurality of injection tubes 26, the transmission assembly is located between the receiving plate 41 and one of the movable clamps 20, and the reset assembly is located between the receiving plate 41 and the plurality of extrusion assemblies. When the movable clamp 20 moves to fix the chip aluminum electrolytic capacitor, the receiving plate 41 can be driven to move through the transmission assembly, so that the receiving plate 41 can move to one side of the injection tube 26 to avoid blocking the injection tube 26, thereby facilitating subsequent injection operations; After a suitable amount of electrolyte is injected and the movable clamp 20 releases the fixation on the chip aluminum electrolytic capacitor, the receiving plate 41 can be moved again between the injection tube 26 and the chip aluminum electrolytic capacitor to shield the chip aluminum electrolytic capacitor, improve the injection accuracy, and have high synchronization.

[0032] like Figure 1-Figure 10 As shown, the rotating assembly includes a first motor 13, a driving sprocket 14, a driven sprocket 15, a chain 16 and a cross plate 49, the cross plate 49 is fixedly mounted on one side of the workbench 11, the first motor 13 is fixedly mounted on the top of the workbench 11, the output end of the first motor 13 is fixedly connected to the driving sprocket 14, the driven sprocket 15 is rotatably arranged above the cross plate 49, and the chain 16 is sleeved on the driving sprocket 14 and the driven sprocket 15; When the chip aluminum electrolytic capacitor needs to be fixed, the first motor 13 is controlled to work, and the first motor 13 can drive the driving sprocket 14 to rotate. Under the action of the chain 16, when the driving sprocket 14 rotates, the driven sprocket 15 can be driven to rotate; It should be noted that the first motor 13 is electrically connected to the controller.

[0033] like Figure 1-Figure 10As shown, the moving assembly includes a moving plate 19, a rotating disk 17, a hinged rod 18 and two guide rods 21, the two guide rods 21 are symmetrically fixed to the top of the workbench 11, the moving plate 19 is slidably arranged on the two guide rods 21, one end of each movable clamp 20 away from the fixed clamp 23 is fixedly connected to the moving plate 19, the rotating disk 17 is fixed to the top of the driven sprocket 15, one end of the hinged rod 18 is hinged to the moving plate 19, and the other end of the hinged rod 18 is hinged to the rotating disk 17; When the driven sprocket 15 rotates, it can drive the turntable 17 to rotate. When the turntable 17 rotates, it can drive the movable plate 19 to move along the length direction of the two guide rods 21 through the hinged rod 18, thereby driving the multiple movable clamps 20 on one side of the movable plate 19 to move. At the same time, in conjunction with the multiple fixed clamps 23, the positioning of the multiple chip aluminum electrolytic capacitors can be achieved, ensuring the stability of the chip aluminum electrolytic capacitors during the injection process.

[0034] like Figure 1-Figure 10 As shown, each extrusion assembly includes an L-shaped plate 24, a wedge-shaped truncated cone 29, a push rod 28, a push plate 27, an end plate 30, a ball 31 and a first spring 32. The L-shaped plate 24 is fixedly arranged on the top of the workbench 11, the filling cylinder 25 is fixedly arranged on one side of the L-shaped plate 24, the wedge-shaped truncated cone 29 is rotatably arranged on the top of the L-shaped plate 24, the push plate 27 is slidably arranged inside the filling cylinder 25, a limiting plate 50 is fixed on one side of the L-shaped plate 24, the push rod 28 is slidably arranged on the limiting plate 50, one end of the push rod 28 passes through the filling cylinder 25 and is fixedly connected to the push plate 27, the other end of the push plate 27 is fixedly connected to the end plate 30, the ball 31 is installed on the top of the end plate 30, and the surface of the ball 31 is in contact with the wedge-shaped truncated cone 29, the first spring 32 is sleeved on the push rod 28, and the two ends of the first spring 32 are respectively connected to the end plate 30 and the limiting plate 50; In the initial state, the ball 31 contacts the wedge-shaped truncated cone 29 at the position closest to the top of the L-shaped plate 24, the first spring 32 is compressed but not completely compressed, the push plate 27 is inside the filling cylinder 25 and away from one end of the injection tube 26, and in the initial state, there is electrolyte inside the push plate 27; When the driving assembly is working, the driving assembly can drive the wedge-shaped truncated cone 29 to rotate. When the wedge-shaped truncated cone 29 rotates, the first spring 32 is squeezed. When the ball 31 contacts the protrusion of the wedge-shaped truncated cone 29, the push rod 28 slides on the limit plate 50, and the push rod 28 drives the push plate 27 to move toward the side close to the injection tube 26, squeezing out the electrolyte inside the injection tube 26, thereby realizing the injection of the chip aluminum electrolytic capacitor; As the wedge-shaped cone 29 continues to rotate, under the action of the first spring 32, the ball 31 again collides with the position of the wedge-shaped cone 29 closest to the top of the L-shaped plate 24, and the push rod 28 drives the push plate 27 to move upward. At this time, under the action of negative pressure, the electrolyte inside the storage tank 39 enters the filling cylinder 25 through the liquid inlet pipe 40 for storage, which is convenient for the next injection.

[0035] like Figure 1-Figure 10 As shown, the driving assembly includes a first bevel gear 35, a second bevel gear 36, a second motor 37 and a plurality of synchronous components, each of which is located between two adjacent wedge-shaped truncated cones 29, the second motor 37 is fixedly mounted on the top of one of the L-shaped plates 24, the second bevel gear 36 is fixed to the output end of the second motor 37, the first bevel gear 35 is fixed to the top of one of the wedge-shaped truncated cones 29, and the first bevel gear 35 and the second bevel gear 36 are meshed with each other; When liquid injection is required, the second motor 37 is controlled to work, and the second motor 37 can drive the second bevel gear 36 to rotate. Since the first bevel gear 35 and the second bevel gear 36 are meshed with each other, when the second bevel gear 36 rotates, the first bevel gear 35 can be driven to rotate.

[0036] like Figure 1-Figure 10 As shown, each synchronous component includes a transmission belt 34 and two transmission wheels 33, the two transmission wheels 33 are respectively fixed on the top ends of two adjacent wedge-shaped cones 29, and the transmission belt 34 is sleeved between the two transmission wheels 33. Specifically, a rotating shaft is fixed on the top end of the wedge-shaped cone 29, and the rotating shaft is rotatably set on the L-shaped plate 24. The transmission wheel 33 is fixedly installed on the top end of the rotating shaft. The first bevel gear 35 is fixed on one of the rotating shafts. When the first bevel gear 35 rotates, it can drive the transmission wheel 33 connected thereto to rotate. Under the action of the transmission belt 34, the other transmission wheel 33 can rotate synchronously, and so on, so that multiple wedge-shaped cones 29 can all rotate, so that multiple filling barrels 25 can synchronously inject liquid into multiple chip aluminum electrolytic capacitors, thereby realizing batch injection with high injection efficiency.

[0037] like Figure 1-Figure 10 As shown, the transmission assembly includes a moving rod 48, a pull rope 45, a plurality of fixing frames 46 and a plurality of guide wheels 47. The plurality of fixing frames 46 are all fixed on the top of the workbench 11, and the plurality of guide wheels 47 are rotatably arranged on the plurality of fixing frames 46. The moving rod 48 is fixedly installed on one side of one of the movable clamps 20. One end of the pull rope 45 is connected to the moving rod 48, and the other end of the pull rope 45 passes around the plurality of guide wheels 47 and is connected to the moving plate 19. When the movable clamp 20 moves toward the fixed clamp 23, the movable clamp 20 can pull the receiving plate 41 to move through the moving rod 48, so that the receiving plate 41 can move toward the side away from the L-shaped plate 24 to avoid blocking the injection tube 26 and facilitate subsequent injection operations.

[0038] like Figure 1-Figure 10 As shown, the reset assembly includes two second springs 44, a plurality of slide bars 43 and a plurality of connecting plates 42, each connecting plate 42 is fixedly installed between two adjacent L-shaped plates 24, each slide bar 43 is slidably arranged on a connecting plate 42, one end of each slide bar 43 is connected to the receiving plate 41, two second springs 44 are respectively sleeved on the outside of two of the slide bars 43, and the two ends of each second spring 44 are respectively connected to the receiving plate 41 and the connecting plate 42; When the receiving plate 41 moves toward the side away from the L-shaped plate 24, the sliding rod 43 slides on the connecting plate 42, and the second spring 44 is stretched; When a set amount of electrolyte is injected, the weighing sensor 12 sends a signal to the controller, and the controller controls the first motor 13 to work, so that the active sprocket 14 rotates in the opposite direction, so that the movable clamp 20 can move away from the fixed clamp 23, and the positioning of the chip aluminum electrolytic capacitor is released. At this time, under the action of the second spring 44, the receiving plate 41 can be driven to reset, and the receiving plate 41 can be moved again between the injection tube 26 and the chip aluminum electrolytic capacitor to achieve shielding of the chip aluminum electrolytic capacitor, improve injection accuracy, and have high synchronization.

[0039] like Figure 1-Figure 10 As shown, the conveying assembly includes a mounting plate 38, a plurality of storage tanks 39 and a plurality of liquid inlet pipes 40. The mounting plate 38 is fixedly mounted on a side of the plurality of L-shaped plates 24 away from the filling barrel 25. The plurality of storage tanks 39 are all fixed on one side of the mounting plate 38. One end of each liquid inlet pipe 40 is connected to the bottom end of the mounting plate 38, and the other end of each liquid inlet pipe 40 is connected to a side wall of one end of the filling barrel 25 close to the injection pipe 26. It should be noted that in actual use, both the liquid inlet pipe 40 and the liquid injection pipe 26 are equipped with a one-way valve; The storage tank 39 stores electrolyte inside, which is convenient for subsequent liquid injection of the chip aluminum electrolytic capacitor.

[0040] like Figure 1-Figure 10 As shown, a mounting seat 22 is fixed to one side of each fixing clip 23 away from the movable clip 20, and each mounting seat 22 is fixedly connected to the workbench 11. The mounting seat 22 can support and fix the fixing clip 23, thereby ensuring the stability of the fixing clip 23 and further ensuring the positioning effect of the chip aluminum electrolytic capacitor.

[0041] The specific working process of the present invention is as follows: First, place the chip aluminum electrolytic capacitor that needs to be injected with liquid above the weighing sensor 12, control the first motor 13 to work, the first motor 13 can drive the driving sprocket 14 to rotate, under the action of the chain 16, when the driving sprocket 14 rotates, it can drive the driven sprocket 15 to rotate, and when the driven sprocket 15 rotates, it can drive the turntable 17 to rotate. When the turntable 17 rotates, it can drive the movable plate 19 to move along the length direction of the two guide rods 21 through the hinged rod 18, so as to drive the multiple movable clamps 20 on one side of the movable plate 19 to move, and at the same time cooperate with the multiple fixed clamps 23 to realize the positioning of multiple chip aluminum electrolytic capacitors, and ensure the stability of the chip aluminum electrolytic capacitors during the injection process. The weighing sensor 12 can firstly measure the weight of the chip aluminum electrolytic capacitors before injection; At the same time, when the movable clamp 20 moves toward the direction close to the fixed clamp 23, the movable clamp 20 can pull the receiving plate 41 to move through the moving rod 48, so that the receiving plate 41 can move toward the side away from the L-shaped plate 24, avoiding blocking the injection pipe 26, and facilitating the subsequent injection operation; Then the second motor 37 is controlled to work, and the second motor 37 can drive the second bevel gear 36 to rotate. Since the first bevel gear 35 and the second bevel gear 36 are meshed with each other, when the second bevel gear 36 rotates, the first bevel gear 35 can be driven to rotate. When the first bevel gear 35 rotates, the transmission wheel 33 connected thereto can be driven to rotate. Under the action of the transmission belt 34, another transmission wheel 33 can rotate synchronously, and so on, so that multiple wedge-shaped cones 29 can all be rotated. When the wedge-shaped cone 29 rotates, the first spring 32 is squeezed. When the ball 31 contacts the protrusion of the wedge-shaped cone 29, the push rod 28 slides on the limit plate 50, and the push rod 28 drives the push plate 27 to move toward the side close to the injection tube 26, so as to squeeze out the electrolyte inside the injection tube 26, so as to realize the aluminum patch. During the injection of the electrolytic capacitor, the weighing sensor 12 can detect the weight of the chip aluminum electrolytic capacitor in real time. When the set amount of electrolyte is injected, the weighing sensor 12 sends a signal to the controller, and the controller controls the first motor 13 to work, so that the active sprocket 14 rotates in the opposite direction, so that the movable clamp 20 can move away from the fixed clamp 23, and the positioning of the chip aluminum electrolytic capacitor is released. At this time, under the action of the second spring 44, the receiving plate 41 can be driven to reset, and the receiving plate 41 can be moved again between the injection tube 26 and the chip aluminum electrolytic capacitor to achieve shielding of the chip aluminum electrolytic capacitor, and avoid the electrolyte in the injection tube 26 from continuing to drip into the interior of the chip aluminum electrolytic capacitor to cause excessive injection, which is conducive to improving the injection accuracy and high synchronization; At the same time, the second motor 37 stops working, thereby stopping the continued injection of liquid into the chip aluminum electrolytic capacitor.

[0042] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic liquid injection process for a chip aluminum electrolytic capacitor, comprising a workbench (11), characterized in that: It also includes a fixing mechanism, a liquid injection mechanism, a material receiving mechanism and a plurality of weighing sensors (12), wherein the plurality of weighing sensors (12) are equidistantly mounted on the top of the workbench (11); The fixing mechanism comprises a rotating assembly, a moving assembly, a plurality of movable clamps (20) and a plurality of fixed clamps (23), each fixed clamp (23) being located on one side of a weighing sensor (12) and fixed on a workbench (11), each movable clamp (20) being located on a side of a weighing sensor (12) away from the fixed clamp (23), the moving assembly being installed between the plurality of movable clamps (20), and the driving assembly being located between the workbench (11) and the moving assembly; The liquid injection mechanism comprises a driving assembly, a plurality of filling cylinders (25), a plurality of liquid injection tubes (26), a plurality of extrusion assemblies and a conveying assembly, each filling cylinder (25) is located above a weighing sensor (12), each liquid injection tube (26) is installed at the bottom end of a filling cylinder (25), each extrusion assembly is arranged above an injection tube (26), the driving assembly is installed between the plurality of extrusion assemblies, and the conveying assembly is located on one side of the plurality of filling cylinders (25); The material receiving mechanism comprises a receiving plate (41), a transmission assembly and a reset assembly, wherein the receiving plate (41) is located below the plurality of liquid injection tubes (26), the transmission assembly is located between the receiving plate (41) and one of the movable clamps (20), and the reset assembly is located between the receiving plate (41) and the plurality of extrusion assemblies.

2. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 1 is characterized in that: The rotating assembly comprises a first motor (13), a driving sprocket (14), a driven sprocket (15), a chain (16) and a transverse plate (49), wherein the transverse plate (49) is fixedly mounted on one side of the workbench (11), the first motor (13) is fixedly mounted on the top of the workbench (11), the output end of the first motor (13) is fixedly connected to the driving sprocket (14), the driven sprocket (15) is rotatably arranged above the transverse plate (49), and the chain (16) is sleeved on the driving sprocket (14) and the driven sprocket (15).

3. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 2 is characterized in that: The moving assembly comprises a moving plate (19), a rotating disk (17), a hinged rod (18) and two guide rods (21), wherein the two guide rods (21) are symmetrically fixed on the top of the workbench (11), the moving plate (19) is slidably arranged on the two guide rods (21), one end of each movable clamp (20) away from the fixed clamp (23) is fixedly connected to the moving plate (19), the rotating disk (17) is fixed to the top of the driven sprocket (15), one end of the hinged rod (18) is hinged to the moving plate (19), and the other end of the hinged rod (18) is hinged to the rotating disk (17).

4. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 3 is characterized in that: Each extrusion assembly comprises an L-shaped plate (24), a wedge-shaped truncated cone (29), a push rod (28), a push plate (27), an end plate (30), a ball (31) and a first spring (32); the L-shaped plate (24) is fixedly arranged on the top of the workbench (11); the filling cylinder (25) is fixedly installed on one side of the L-shaped plate (24); the wedge-shaped truncated cone (29) is rotatably arranged on the top of the L-shaped plate (24); the push plate (27) is slidably arranged inside the filling cylinder (25); and one side of the L-shaped plate (24) is fixed with a limit position. The push rod (28) is slidably arranged on the limit plate (50), one end of the push rod (28) passes through the filling cylinder (25) and is fixedly connected to the push plate (27), the other end of the push plate (27) is fixedly connected to the end plate (30), the ball (31) is installed on the top of the end plate (30), and the surface of the ball (31) is in contact with the wedge-shaped truncated table (29), and the first spring (32) is sleeved on the push rod (28), and the two ends of the first spring (32) are respectively connected to the end plate (30) and the limit plate (50).

5. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 4 is characterized in that: The driving assembly comprises a first bevel gear (35), a second bevel gear (36), a second motor (37) and a plurality of synchronous components, each of which is located between two adjacent wedge-shaped truncated cones (29), the second motor (37) is fixedly mounted on the top end of one of the L-shaped plates (24), the second bevel gear (36) is fixed to the output end of the second motor (37), the first bevel gear (35) is fixed to the top end of one of the wedge-shaped truncated cones (29), and the first bevel gear (35) and the second bevel gear (36) are meshed with each other.

6. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 5, characterized in that: Each synchronous component comprises a transmission belt (34) and two transmission wheels (33). The two transmission wheels (33) are respectively fixed on the top ends of two adjacent wedge-shaped truncated cones (29), and the transmission belt (34) is sleeved between the two transmission wheels (33).

7. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 6, characterized in that: The transmission assembly comprises a moving rod (48), a pull rope (45), a plurality of fixing frames (46) and a plurality of guide wheels (47), wherein the plurality of fixing frames (46) are all fixed on the top of the workbench (11), the plurality of guide wheels (47) are all rotatably arranged on the plurality of fixing frames (46), the moving rod (48) is fixedly mounted on one side of one of the movable clamps (20), one end of the pull rope (45) is connected to the moving rod (48), and the other end of the pull rope (45) is passed around the plurality of guide wheels (47) and connected to the moving plate (19).

8. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 7, characterized in that: The reset components each comprise two second springs (44), a plurality of slide bars (43) and a plurality of connecting plates (42); each connecting plate (42) is fixedly mounted between two adjacent L-shaped plates (24); each slide bar (43) is slidably disposed on a connecting plate (42); one end of each slide bar (43) is connected to a receiving plate (41); two second springs (44) are respectively sleeved on the outside of two of the slide bars (43); and both ends of each second spring (44) are respectively connected to the receiving plate (41) and the connecting plate (42).

9. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 8, characterized in that: The conveying assembly comprises a mounting plate (38), a plurality of storage tanks (39) and a plurality of liquid inlet pipes (40); the mounting plate (38) is fixedly mounted on a side of the plurality of L-shaped plates (24) away from the filling cylinder (25); the plurality of storage tanks (39) are fixed on a side of the mounting plate (38); one end of each liquid inlet pipe (40) is connected to the bottom end of the mounting plate (38); and the other end of each liquid inlet pipe (40) is connected to a side wall of one end of the filling cylinder (25) close to the injection pipe (26).

10. The automatic liquid injection process for chip aluminum electrolytic capacitors according to claim 9, characterized in that: A mounting seat (22) is fixed to one side of each fixed clamp (23) away from the movable clamp (20), and each mounting seat (22) is fixedly connected to the workbench (11).

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