Automatic coating machine for laminated capacitor end electrode
By designing an automatic coating machine for the end electrodes of stacked capacitors, and adopting structures such as U-shaped frames and cylinders, synchronous spraying of both ends of the stacked capacitors and stable clamping of multiple capacitors are achieved. This solves the problems of low production efficiency and limited output of single-sided spraying equipment, and improves large-scale production capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN CHANGTAIFENG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-05
AI Technical Summary
Most existing electrode coating equipment for multilayer capacitors adopts a single-sided spraying method, which requires flipping operation, increases production steps and time costs, and cannot process multiple capacitors at the same time, making it difficult to meet the needs of large-scale production.
An automatic coating machine for the end electrodes of a multilayer capacitor was designed. It adopts two sets of U-shaped frames, adjustment frames, cylinders and other structures, and works with a sprayer to spray both ends of the multilayer capacitor at the same time, reducing the need for flipping and achieving stable clamping and synchronous coating of multiple capacitors.
It improves production efficiency, reduces time costs, increases output per unit time, meets the needs of large-scale production, and ensures coating quality and consistency.
Smart Images

Figure CN224195066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of capacitor production equipment, specifically to an automatic coating machine for the end electrodes of a multilayer capacitor. Background Technology
[0002] In the production process of multilayer capacitors, the coating of the terminal electrodes is a crucial step, as its coating quality directly affects the electrical performance and service life of the multilayer capacitors.
[0003] Currently, most existing coating equipment for the terminal electrodes of multilayer capacitors adopts a single-sided spraying method. However, this method has certain drawbacks. Single-sided spraying requires flipping the multilayer capacitor, which increases production steps and time costs, reduces production efficiency, and is not conducive to large-scale production. At the same time, most existing coating equipment for the terminal electrodes of multilayer capacitors uses a single spraying fixture limiting stage, which can only fix one multilayer capacitor for spraying at a time, making it impossible to process multiple capacitors simultaneously. This greatly limits the output per unit time and makes it difficult to meet the needs of large-scale production. Therefore, this utility model proposes an automatic coating machine for the terminal electrodes of multilayer capacitors to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide an automatic coating machine for the terminal electrodes of multilayer capacitors to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic coating machine for the terminal electrodes of a multilayer capacitor, comprising a coating machine platform, a support plate on the coating machine platform, a U-shaped frame mounted on the support plate via a base, a rotating shaft at both ends of the U-shaped frame, a clamping block at one end of the rotating shaft, an adjusting bolt on the clamping block, and an adjusting tooth at the other end of the rotating shaft;
[0006] The two sets of U-shaped frames are equipped with sliding grooves on their transverse sidewalls. Adjustment frames are slidably installed in the sliding grooves. The two transverse ends of the adjustment frames are provided with toothed grooves, which mesh with the adjustment teeth on the two rotating shafts. The longitudinal end of the adjustment frame is connected to a cylinder, which is mounted on the frame plate of the coating machine.
[0007] The frame plate is equipped with a sprayer, which is mounted on a transverse guide frame inside the frame plate. The frame plate is also equipped with a coating material supply box, which is connected to the sprayer through a material conveying pipe.
[0008] Preferably, the coating machine base has a built-in drive motor, the output end of which is connected to a lead screw in the middle groove of the coating machine base, and the lead screw is connected to a support plate.
[0009] Preferably, the coating machine platform is provided with two sets of limiting guide grooves, and the support plate moves back and forth within the range of the two sets of limiting guide grooves.
[0010] Preferably, the transverse guide frame is provided with a screw, which is connected to the output end of a control motor mounted on the side wall of the frame plate. The screw is also connected to a mounting plate, and the sprayer is mounted on the mounting plate.
[0011] Preferably, one end of the rotating shaft is threaded, and the adjusting tooth is installed at one end of the rotating shaft in a helical manner.
[0012] Preferably, the cylinder output end is provided with a connecting block, which is connected to the adjusting frame by means of fastening bolts.
[0013] Preferably, the coating machine is equipped with a controller, which is electrically connected to the drive motor, cylinder, sprayer and control motor.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] (1) By setting up two sets of U-shaped frames, adjustment frames, cylinders and other structures on the coating machine, and with the sprayer, the two ends of the stacked capacitor can be sprayed at the same time without the need for flipping operation, which reduces the production process and saves time costs. Compared with the traditional single-sided spraying equipment, it greatly improves production efficiency and meets the needs of large-scale production.
[0016] (2) Multiple stacked capacitors can be stably clamped at the same time by means of the rotating shafts and clamping blocks on the two sets of U-shaped frames. By driving the adjustment frame with the cylinder and cooperating with the lateral movement of the sprayer, the terminal electrode coating operation of multiple capacitors can be carried out at the same time. There is no need to repeatedly load and unload the materials one by one, which increases the output per unit time and effectively solves the problem of limited output. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the installation structure of the limiting guide groove of this utility model.
[0019] Figure 3 This is a schematic diagram of the installation structure of the adjustment frame and adjustment teeth of this utility model.
[0020] Figure 4 This is a schematic diagram of the coating machine structure of this utility model.
[0021] In the diagram: 1. Coating machine; 11. Lead screw; 12. Control unit; 2. Support plate; 21. Base; 22. U-shaped frame; 23. Rotating shaft; 24. Clamping block; 25. Adjusting bolt; 26. Thread; 27. Adjusting gear; 28. Slide groove; 29. Adjusting frame; 3. Limiting guide groove; 4. Cylinder; 41. Connecting block; 5. Sprayer; 51. Horizontal guide frame; 52. Control motor; 6. Coating material supply box. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1 to 4 This utility model provides a technical solution: an automatic coating machine for the terminal electrodes of a multilayer capacitor, including a coating machine platform 1, a support plate 2 on the coating machine platform 1, and a U-shaped frame 22 mounted on the support plate 2 via a base 21. Both ends of the U-shaped frame 22 are provided with rotating shafts 23. One end of the rotating shaft 23 is provided with a clamping block 24, and an adjusting bolt 25 is provided on the clamping block 24. The other end of the rotating shaft 23 is provided with an adjusting tooth 27. Sliding grooves 28 are jointly installed on the transverse sidewalls of both sets of U-shaped frames 22. The left and right ends of the adjusting frame 29 slide within the sliding grooves 28 at both ends. The transverse ends of the adjusting frame 29 are provided with toothed grooves, which mesh with the adjusting teeth 27 on the rotating shafts 23 at both ends, allowing for adjustment. The longitudinal end of the frame 29 is connected to the cylinder 4, which is mounted on the frame plate of the coating machine 1. The frame plate is equipped with a sprayer 5, which is mounted on the transverse guide 51 inside the frame plate. The frame plate is also equipped with a coating material supply box 6, which is connected to the sprayer 5 through a material conveying pipe. By setting up two sets of U-shaped frames 22, adjusting frames 29, cylinders 4 and other structures on the coating machine 1, and cooperating with the sprayer 5, both ends of the laminated capacitor can be sprayed simultaneously without the need for flipping operation, reducing production steps and saving time costs. Compared with traditional single-sided spraying equipment, it greatly improves production efficiency and meets the needs of large-scale production.
[0024] Please see Figures 1 to 4 The coating machine 1 has a built-in drive motor. The output end of the drive motor is connected to the lead screw 11 in the middle groove of the coating machine 1. The lead screw 11 is connected to the support plate 2.
[0025] Please see Figures 1 to 4The coating machine 1 is equipped with two sets of limiting guide grooves 3. The support plate 2 moves back and forth within the range of the two sets of limiting guide grooves 3. In use, the limiting guide grooves 3 provide a clear and fixed path for the movement of the support plate 2, so that the support plate 2 can only move back and forth in the direction set by the guide groove, avoiding left and right deviation or shaking, thereby ensuring the accuracy of the movement position of the U-shaped frame 22 on the support plate 2 and the stacked capacitors held therein.
[0026] Please see Figures 1 to 4 The transverse guide 51 is equipped with a screw, which is connected to the output end of the control motor 52 mounted on the side wall of the frame plate. The screw is also connected to the mounting plate, and the sprayer 5 is mounted on the mounting plate. In actual production, it may be necessary to coat stacked capacitors of different specifications and arrangements. By controlling the motor 52 to drive the screw, the sprayer 5 can move flexibly on the transverse guide 51. The position of the sprayer 5 can be adjusted according to specific production needs to adapt to various coating tasks and improve the versatility and flexibility of the coating machine.
[0027] Please see Figures 1 to 4 One end of the rotating shaft 23 is provided with a thread 26, and the adjusting tooth 27 is installed in a spiral manner on one end of the rotating shaft 23. By adopting the spiral installation method, during the equipment assembly process, the operator can easily install the adjusting tooth 27 onto the rotating shaft 23. Simply align the adjusting tooth 27 with the thread 26 end of the rotating shaft 23 and then rotate it to complete the installation.
[0028] Please see Figures 1 to 4 The cylinder 4 output end is provided with a connecting block 41, which is connected to the adjusting frame 29 by fastening bolts. The fastening connection between the connecting block 41 and the adjusting frame 29 can ensure that the cylinder 4 can accurately drive the adjusting frame 29 to move accordingly when it is telescopic. This ensures the meshing accuracy between the tooth grooves at both ends of the adjusting frame 29 and the adjusting teeth 27 on the rotating shaft 23, which helps to achieve precise adjustment of the angle of the stacked capacitor, ensures the accuracy and consistency of electrode coating during the coating process, and improves the coating quality of the product.
[0029] Please see Figures 1 to 4 The coating machine 1 is equipped with a controller 12. The controller 12 is electrically connected to the drive motor, cylinder 4, sprayer 5 and control motor 52. The controller 12 serves as the control core of the coating machine, and can integrate the control functions of the drive motor, cylinder 4, sprayer 5 and control motor 52. The operator can operate and manage these components in a unified manner on the controller 12 without having to operate each component separately. This can effectively reduce the difficulty and complexity of operation and improve work efficiency. The controller 12 can be implemented using existing PLC programming technology, which will not be described in detail here.
[0030] In use, the laminated capacitor is placed between the clamping blocks 24 of the two sets of U-shaped frames 22. By rotating the adjusting bolts 25 on the clamping blocks 24, the height of the capacitor plate relative to the abutment inside the clamping blocks 24 is adjusted, so that the laminated capacitor plate is clamped between the abutment and the clamping blocks 24. Then, the drive motor is started by controlling the controller 12. The drive motor drives the lead screw 11 to rotate. The lead screw 11 is connected to the support plate 2, thereby pushing the support plate 2 to move back and forth in the two sets of limiting guide grooves 3 of the coating machine 1, conveying the U-shaped frame 22 containing the laminated capacitor to the final position. At the appropriate coating position, the controller 12 controls the cylinder 4 to work. The connecting block 41 at the output end of the cylinder 4 drives the adjusting frame 29 to slide in the slide groove 28. Since the toothed grooves at both ends of the adjusting frame 29 mesh with the adjusting teeth 27 on the rotating shaft 23, the sliding of the adjusting frame 29 will drive the rotating shaft 23 to rotate, thereby adjusting the angle of the stacked capacitors on the clamping block 24 to meet the coating requirements. In addition, the controller 12 controls the start of the control motor 52, which drives the screw in the transverse guide frame 51 to rotate, and the screw pushes... The moving mounting plate moves, thereby driving the sprayer 5 to move laterally on the transverse guide frame 51, adjusting the sprayer 5 to a suitable spraying starting position. The coating material supply box 6 delivers the coating material to the sprayer 5 through the conveying pipe. The controller 12 controls the sprayer 5 to start, beginning to spray the end electrodes of the multilayer capacitor. During the spraying process, the control motor 52 continuously drives the sprayer 5 to move on the transverse guide frame 51, achieving uniform spraying of different positions of the end electrodes of the multilayer capacitor. At the same time, the cylinder 4 can readjust the position of the adjusting frame 29 as needed, driving the multilayer capacitor to rotate a certain angle to ensure that all parts of the end electrodes are sprayed. After the sprayer 5 completes the spraying operation on the end electrodes of the multilayer capacitor, the controller 12 controls the drive motor to reverse, driving the lead screw 11 to move the support plate 2 and the U-shaped frame 22 back to the initial position. The operator rotates the adjusting bolt 25, releases the clamp 24, and takes out the coated multilayer capacitor, completing one coating process. If it is necessary to continue coating the next batch of multilayer capacitors, the above steps can be repeated.
[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic coating machine for the terminal electrodes of a multilayer capacitor, comprising a coating machine table (1), a support plate (2) on the coating machine table (1), a U-shaped frame (22) mounted on the support plate (2) via a base (21), a rotating shaft (23) at both ends of the U-shaped frame (22), a clamping block (24) at one end of the rotating shaft (23), an adjusting bolt (25) on the clamping block (24), and an adjusting tooth (27) at the other end of the rotating shaft (23), characterized in that: The two sets of U-shaped frames (22) are equipped with sliding grooves (28) on their transverse sidewalls. An adjusting frame (29) is slidably installed in the sliding groove (28). The adjusting frame (29) has toothed grooves at both transverse ends. These toothed grooves mesh with the adjusting teeth (27) on the rotating shafts (23) at both ends. The longitudinal end of the adjusting frame (29) is connected to a cylinder (4). The cylinder (4) is installed on the frame plate of the coating machine (1). The frame plate is equipped with a sprayer (5), which is mounted on a transverse guide (51) inside the frame plate. The frame plate is also equipped with a coating material supply box (6), which is connected to the sprayer (5) through a material conveying pipe.
2. The automatic coating machine for the terminal electrodes of a multilayer capacitor according to claim 1, characterized in that: The coating machine (1) is equipped with a drive motor. The output end of the drive motor is connected to the lead screw (11) in the middle groove of the coating machine (1). The lead screw (11) is connected to the support plate (2).
3. The automatic coating machine for the terminal electrodes of a multilayer capacitor according to claim 2, characterized in that: The coating machine (1) is provided with two sets of limiting guide grooves (3), and the support plate (2) moves back and forth within the range of the two sets of limiting guide grooves (3).
4. The automatic coating machine for the terminal electrodes of a multilayer capacitor according to claim 1, characterized in that: The transverse guide (51) is provided with a screw, which is connected to the output end of the control motor (52) installed on the side wall of the frame plate. The screw is connected to the mounting plate, and the sprayer (5) is mounted on the mounting plate.
5. The automatic coating machine for the terminal electrodes of a multilayer capacitor according to claim 1, characterized in that: One end of the rotating shaft (23) is provided with a thread (26), and the adjusting tooth (27) is installed at one end of the rotating shaft (23) in a spiral manner.
6. The automatic coating machine for the terminal electrodes of a multilayer capacitor according to claim 1, characterized in that: The cylinder (4) output end is provided with a connecting block (41), which is connected to the adjusting frame (29) by means of fastening bolts.
7. The automatic coating machine for the terminal electrodes of a multilayer capacitor according to claim 1, characterized in that: The coating machine (1) is equipped with a controller (12), which is electrically connected to the drive motor, cylinder (4), sprayer (5) and control motor (52).