A winding machine thickness detection mechanism
By designing a coating thickness detection mechanism for the winding machine, the quality problem of electrolytic capacitors caused by non-compliance with coating thickness requirements was solved, achieving accurate detection and automatic reset, and improving the yield rate of electrolytic capacitors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGGUAN TAICON ELECTRONICS CORP
- Filing Date
- 2025-10-17
- Publication Date
- 2026-06-30
AI Technical Summary
In the coating process of electrolytic capacitors, if the coating thickness does not meet the requirements, it can easily lead to quality problems such as unqualified impedance of finished electrolytic capacitors and internal bursting of the core, affecting the yield rate.
A winding machine coating thickness detection mechanism was designed, including a coating mold, a movable structure, a guide structure, a displacement sensor, and a reset structure. The coating thickness is detected by the displacement sensor, and the automatic reset is achieved after measurement by the reset structure, ensuring measurement accuracy and repeatability.
Effective detection of the coating thickness prevents problems such as impedance defects and core bursting in finished electrolytic capacitors, thus improving the yield rate of finished electrolytic capacitors.
Smart Images
Figure CN121048558B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrolytic capacitor processing equipment design, and in particular to a winding machine coating thickness detection mechanism. Background Technology
[0002] Electrolytic capacitors involve several processing steps, including winding and bonding. The winding process tightly rolls the anode foil, cathode foil, and electrolytic paper that make up the capacitor into a cylindrical core, while bonding connects needle-shaped electrodes to the core. These steps are now mostly achieved using winding machines.
[0003] In the electrode-adding process, electrode-adding thickness, i.e. the depth to which the needle-shaped electrode is set in the core package, is an important processing parameter. If the electrode-adding thickness is not up to standard, it can easily lead to quality problems such as the impedance of the finished electrolytic capacitor not meeting the requirements and the core bursting. Whether the electrode-adding thickness meets the requirements seriously affects the yield of the finished electrolytic capacitor. Summary of the Invention
[0004] The purpose of this invention is to provide a winding machine thickness detection mechanism that can solve one or more of the above-mentioned problems.
[0005] According to one aspect of the present invention, a winding machine overlay thickness detection mechanism is provided, comprising an overlay die, a movable structure, a guide structure, a displacement sensor, a reset structure, and a support.
[0006] The forming mold includes a pressing block and a resetting slider, which are slidably disposed on the forming mold.
[0007] The guide structure is mounted on the bracket, and the movable structure is connected to the guide structure.
[0008] The displacement sensor is equipped with a movable rod, and the movable structure is connected to the movable rod.
[0009] The smoothing block can move and abut against the movable structure, thereby causing the movable structure to move together.
[0010] The reset slider can be moved to trigger the reset structure, and the reset structure can drive the movable structure to reset.
[0011] The beneficial effects of this invention are as follows: The bonding mold can be used for bonding electrolytic capacitors. During the bonding process, it can be linked to the smoothing block, and the displacement sensor can acquire the moving distance of the smoothing block, thereby providing feedback on the bonding thickness of the electrolytic capacitor. This facilitates the subsequent screening of electrolytic capacitors that do not meet the bonding thickness requirements, preventing problems such as core bursting and impedance failure. Furthermore, a reset slider and reset structure are provided to facilitate resetting the position of the movable structure after each bonding process, thus resetting the displacement sensor and allowing it to measure the bonding thickness for the next cycle.
[0012] In some embodiments, the guide structure includes a guide slider, a slide rail, and a connecting block. The slide rail is mounted on a bracket, the guide slider is slidably disposed on the slide rail, the guide slider is connected to the connecting block, and the connecting block is connected to the movable structure. Thus, when the movable structure moves, the guide slider can move along the slide rail accordingly, guiding and limiting the movement of the movable structure to reduce movement deviation.
[0013] In some embodiments, the forming mold includes a mold body and a pressing block. The mold body is provided with a first slide rail, and the pressing block is slidably disposed on the first slide rail. The pressing block is connected to the pressing block. The first slide rail guides and limits the movement of the pressing block to reduce movement deviation. The pressing block can be linked with other forming components on the forming mold to enable them to move synchronously with the pressing block.
[0014] In some embodiments, the mold body is provided with a second slide rail, and the reset slider is slidably disposed on the second slide rail. The second slide rail can guide and limit the movement of the reset slider to reduce the movement deviation of the reset slider.
[0015] In some embodiments, the movable structure includes a movable block, a first abutment, and a second abutment. Both the first and second abutments are fixedly connected to the movable block, which is connected to a movable rod. The first abutment abuts against the pressing block, and the second abutment abuts against the reset structure. Thus, the user can better adapt to different reinforcement thickness requirements by adjusting the height of the first abutment, and can adapt to different reset height requirements of the movable structure by adjusting the height of the second abutment.
[0016] In some embodiments, the support is provided with a stop block positioned at the maximum movable limit of the movable block. The stop block prevents the movable block from moving excessively in its direction, thus avoiding damage to other structures.
[0017] In some embodiments, the reset structure includes a rotating block rotatably mounted on a support. A first swing arm and a second swing arm are respectively provided on both sides of the rotating block. The reset slider can move to abut against the first swing arm, causing the first swing arm to move together. The second swing arm can abut against the movable structure. Thus, the reset slider can drive the first swing arm to move, thereby allowing the rotating block to rotate, which in turn allows the second swing arm to drive the movable structure to move.
[0018] In some embodiments, the bracket is provided with a guide hole through which the movable rod passes and can move along. The guide hole guides and limits the movement of the movable rod.
[0019] In some embodiments, the bracket is provided with a mounting block having multiple mounting holes. The mounting block facilitates the mounting and securing of the bracket on the winding machine. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of a winding machine thickness detection mechanism according to one embodiment of the present invention.
[0021] Figure 2 This is an exploded view of a winding machine thickness detection mechanism according to one embodiment of the present invention.
[0022] Figure 3 This is a schematic diagram of the outer shell of a winding machine thickness detection mechanism according to one embodiment of the present invention.
[0023] Figure 4 This is a schematic diagram of the outer shell of a winding machine thickness detection mechanism according to one embodiment of the present invention.
[0024] Figure 5 This is a schematic diagram of the outer shell of a winding machine thickness detection mechanism according to one embodiment of the present invention.
[0025] In the diagram: 1. Mold, 2. Movable structure, 3. Guide structure, 4. Displacement sensor, 5. Reset structure, 6. Support, 11. Mold body, 12. Pressure block, 13. Pressing block, 14. Reset slider, 111. First slide rail, 112. Second slide rail, 21. Movable block, 22. First abutment, 23. Second abutment, 31. Guide slider, 32. Slide rail, 33. Connecting block, 41. Movable rod, 51. Rotating block, 511. First swing arm, 512. Second swing arm, 61. Guide hole, 62. Stop block, 63. Mounting block, 631. Mounting hole. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings.
[0027] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The present invention provides a winding machine coating thickness detection mechanism, comprising a coating mold 1, a movable structure 2, a guide structure 3, a displacement sensor 4, a reset structure 5, and a bracket 6.
[0028] The bonding mold 1 includes a mold body 11, a pressure block 12, a pressing block 13, and a reset slider 14. The mold body 11 has a first slide rail 111, and the pressing block 13 is disposed on the first slide rail 111 and can slide along the first slide rail 111. The pressure block 12 and the pressing block 13 are fixedly connected by screws, so that the pressure block 12 can move as the pressing block 13 moves. In this embodiment, the first slide rail 111 is preferably perpendicular to the horizontal plane, so the pressing block 13 can move up and down perpendicular to the horizontal plane. In addition, the bonding mold 1 is also provided with a bonding device, which can be connected to the pressure block 12.
[0029] The mold body 11 is also provided with a second slide rail 112, and the reset slider 14 is disposed on the second slide rail 112, and the reset slider 14 can slide along the second slide rail 112. In this embodiment, the second slide rail 112 is preferably arranged perpendicular to the horizontal plane, so the reset slider 14 can move up and down perpendicular to the horizontal plane.
[0030] The guide structure 3 includes a guide slider 31, a slide rail 32, and a connecting block 33. The slide rail 32 is fixedly mounted on the bracket 6 by screws. The guide slider 31 is sleeved on the slide rail 32 and can slide along the slide rail 32. The guide slider 31 is fixedly connected to the connecting block 33 by screws.
[0031] The movable structure 2 includes a movable block 21, a first abutment 22, and a second abutment 23. Both the first abutment 22 and the second abutment 23 are embedded in the movable block 21 for fixed connection. The tip of the first abutment 22 faces upwards, and the tip of the second abutment 23 faces downwards. The movable block 21 of the movable structure 2 is fixedly connected to the connecting block 33 by screws, so that the movable block 21 can be connected to the guide slider 31 through the connecting block 33 and will slide along the slide rail 32 together with the guide slider 31. In this embodiment, the slide rail 32 is preferably set perpendicular to the horizontal plane, so the movable block 21 can move up and down perpendicular to the horizontal plane.
[0032] The bracket 6 is also provided with a stop 62, which is located at the movable limit position of the movable block 21. Specifically, the stop 62 is located below the movable block 21. After the movable block 21 moves down a certain distance, it will abut against the top of the stop 62, so that the stop 62 will restrict the continued movement of the movable block 21. That is, the stop 62 is at the movable limit position of the movable block 21 in this direction.
[0033] The first abutment 22 is used to abut against the pressing block 13. Preferably, the pressing block 13 is located above the first abutment 22. The pressing block 13 can abut against the first abutment 22 of the movable structure 2 by moving downward. After abutting, the pressing block 13 can drive the movable structure 2 to move downward together.
[0034] The displacement sensor 4 is equipped with a movable rod 41. The displacement sensor 4 can effectively detect the moving distance of the movable rod 41. The movable block 21 of the movable structure 2 is fixedly connected to the movable rod 41, so that the movable rod 41 can move with the movement of the movable block 21. In this embodiment, the movable rod 41 is set perpendicular to the horizontal plane, so the movable rod 41 can move up and down perpendicular to the horizontal plane.
[0035] The displacement sensor 4 body can be fixedly connected to the bracket 6 via a connecting block, and the bracket 6 is also provided with a guide hole 61, through which the movable rod 41 passes and can move along the guide hole 61.
[0036] The reset structure 5 includes a rotating block 51, which is rotatably mounted on a bracket. A first swing arm 511 and a second swing arm 512 are respectively provided on both sides of the rotating block 51. The first swing arm 511 is located below the reset slider 14. The second abutment 23 is used to abut against the reset structure 5. Preferably, the second swing arm 512 is located below the second abutment 23, and the second swing arm 512 abuts against the second abutment 23.
[0037] The reset slider 14 can move to trigger the reset structure 5, and the reset structure 5 can drive the movable structure 2 to reset. Preferably, the reset slider 14 can move downward to abut against the first swing arm 511, and then the reset slider 14 can drive the first swing arm 511 to move together, so the rotating block 51 can rotate, and the second swing arm 512 swings accordingly. Since the second swing arm 512 abuts against the second abutment 23, the second swing arm 512 can drive the second abutment 23 to move, that is, the movable structure 2 can move. When the movable structure 2 moves to the initial position, its reset is completed, and the downward movement of the reset slider 14 can be stopped.
[0038] The bracket 6 is also provided with a mounting block 63, which has multiple mounting holes 631.
[0039] The thickness detection mechanism for this winding machine can be configured on the winding machine. When configured, screws can be installed on the mounting hole 631 and fixed to the body of the winding machine. The mold body 11 is also fixed to the body of the winding machine. The pressing block 13 and the reset slider 14 can be connected to an external power device, such as a hydraulic cylinder, so that the pressing block 13 and the reset slider 14 can move up and down. The pressing block 12 can be connected to the coating mold 1.
[0040] When the coating thickness detection mechanism of this winding machine is working, the external power unit can drive the pressure block 13 to slide down along the first slide rail 111. At this time, the pressure block 12 can move accordingly, and the coating device on the coating mold 1 can move with the movement of the pressure block 12 to coat the electrolytic capacitor.
[0041] After the pressing block 13 moves down a certain distance, it can abut against the first abutment 22. At this time, the first abutment 22 can move down with the pressing block 13, and the movable block 21 also moves down. The movement of the movable block 21 can cause the movable rod 41 to move down accordingly. At this time, the displacement sensor 4 can obtain the current coating thickness of the electrolytic capacitor according to the amount of downward movement of the movable rod 41. The user can judge whether the coating processing of the electrolytic capacitor meets the requirements according to the coating thickness obtained by the displacement sensor 4, so as to screen out unqualified products in time.
[0042] After the electrolytic capacitor coating is completed and the coating thickness is measured, the external power device drives the pressure block 13 to move upward and reset, so that the pressure block 13 can separate from the first abutment 22. Then, the external power device drives the reset slider 14 to move downward, and the reset slider 14 can slide downward along the second slide rail 112. After the reset slider 14 moves downward, it can abut against the first swing arm 511. Then, the reset slider 14 can drive the first swing arm 511 to move together, so the rotating block 51 can rotate. As the rotating block 51 rotates, the second swing arm 512 swings upward accordingly. The second swing arm 512 can drive the second abutment 23 to move upward, so the entire movable structure 2 can move upward as a whole. The movable rod 41 connected to the movable structure 2 also moves upward until the movable structure 2 returns to the initial height. At this time, the movable rod 41 also returns to the initial height. The external power device can drive the reset slider 14 to move upward and reset, completing the reset of each structure in preparation for the next measurement of the electrolytic capacitor coating thickness.
[0043] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.
Claims
1. A winding machine thickness detection mechanism, characterized in that, This includes a mold, a movable structure, a guide structure, a displacement sensor, a reset structure, and a support. The forming mold includes a pressing block and a resetting slider, which are slidably disposed on the forming mold. The guide structure is mounted on the bracket, and the movable structure is connected to the guide structure. The displacement sensor is equipped with a movable rod, and the movable structure is connected to the movable rod. The smoothing block can move and abut against the movable structure, thereby causing the movable structure to move together. The reset slider can be moved to trigger the reset structure, and the reset structure can drive the movable structure to reset. The movable structure includes a movable block, a first abutment, and a second abutment. Both the first and second abutments are fixedly connected to the movable block. The movable block is connected to a movable rod. The first abutment abuts against the pressing block, and the second abutment abuts against the reset structure. The bracket is equipped with a stop block, which is positioned at the movable block's maximum movable position. The reset structure includes a rotating block, which is rotatably mounted on a bracket. A first swing arm and a second swing arm are respectively provided on both sides of the rotating block. The reset slider can move and abut against the first swing arm to drive the first swing arm to move together. The second swing arm can abut against the movable structure.
2. The winding machine thickness detection mechanism according to claim 1, characterized in that, The guide structure includes a guide slider, a slide rail, and a connecting block. The slide rail is mounted on a bracket, the guide slider is slidably disposed on the slide rail, the guide slider is connected to the connecting block, and the connecting block is connected to a movable structure.
3. The winding machine thickness detection mechanism according to claim 1, characterized in that, The pressing mold includes a mold body and a pressing block. The mold body is provided with a first slide rail, and the pressing block is slidably disposed on the first slide rail. The pressing block is connected to the pressing block.
4. The winding machine thickness detection mechanism according to claim 3, characterized in that, The mold body is provided with a second slide, and the reset slider is slidably disposed on the second slide.
5. The winding machine thickness detection mechanism according to claim 1, characterized in that, The bracket is provided with a guide hole, through which the movable rod passes and can move along the guide hole.
6. The winding machine thickness detection mechanism according to claim 1, characterized in that, The bracket is provided with a mounting block, and the mounting block is provided with multiple mounting holes.