Fixed-point paint removing device for enameled wire
By using positioning devices and lasers in the fixed-point paint removal device of the enameled wire for limiting and depainting, combined with smoke exhaust and transmission devices, the problem of low sandpaper grinding efficiency is solved, and a high-efficiency and low-damage fixed-point paint removal process is achieved.
Patent Information
- Application Number
- CN202422222239.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the prior art, when the enameled wire is depainted with sandpaper grinding, the efficiency is low and difficult to control the force, which is easy to damage the wire core.
The positioning device is used to limit the enameled wire, and the laser emits laser to remove the paint layer, combining the smoke exhaust device and the transmission device to achieve an efficient and stable fixed-point paint removal process.
It improves the efficiency of fixed-point paint removal, reduces the risk of damage to the wire core, and effectively eliminates the pollution of smoke and dust to the environment, achieving continuous and efficient paint removal operation.
Smart Images
Figure CN223288655U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of paint stripping equipment, and in particular to a fixed-point paint stripping device for enameled wires. Background Art
[0002] Speaker coils (also known as loudspeaker coils) are typically made of enameled wire (copper wire coated with an insulating varnish) wound around a coil support. The insulation of the enameled wire prevents short circuits between the turns, ensuring the coil can properly generate an electromagnetic field during operation. However, to connect the enameled wire to other circuits or components, such as speaker pins or other terminals, the insulating varnish must be removed, a process commonly known as spot stripping.
[0003] In the related art, sandpaper polishing is usually used to remove the paint from the enameled wire at a fixed point. Specifically, it is necessary to prepare 1000-2000 mesh fine sandpaper, fix one end of the enameled wire on the fixture to ensure that the enameled wire will not move during the polishing process, and then cut the fine sandpaper into small pieces suitable for polishing. Hold the sandpaper in hand, use one corner of the sandpaper to forcefully touch the surface of the enameled wire, polish slowly at an oblique angle, maintain slight pressure, and move the sandpaper evenly on the surface of the enameled wire to gradually remove the paint layer.
[0004] Regarding the above-mentioned related technologies, sandpaper polishing is used. In order not to damage the wire core, the polishing force needs to be strictly controlled, resulting in low efficiency of the fixed-point paint removal process. Utility Model Content
[0005] In order to improve the problem of low efficiency in fixed-point paint removal of enameled wires, the present application provides a fixed-point paint removal device for enameled wires.
[0006] The present application provides a device for removing paint from enameled wire at a fixed point, which adopts the following technical solution:
[0007] A fixed-point paint removal device for enameled wire, comprising:
[0008] Workbench;
[0009] A positioning device, provided on the workbench, for limiting the position of the enameled wire; and
[0010] The laser is arranged on the workbench and comprises a laser head for emitting laser light toward the portion of the enameled wire to be de-varnished.
[0011] Furthermore, the positioning device includes a positioning seat and a plurality of limiting rods provided on the positioning seat, and the limiting rods limit the enameled wire by passing through the coil support.
[0012] Furthermore, the top of the limiting rod is provided with a chamfer.
[0013] Furthermore, there are multiple positioning devices, and the workbench is provided with a transfer device for sequentially transferring the multiple positioning devices to the emission end of the laser head.
[0014] Furthermore, the transfer device includes a turntable and a drive motor, the turntable is rotatably connected to the workbench, a plurality of positioning devices are equidistantly arranged on the turntable, and the drive motor is used to drive the turntable to rotate.
[0015] Furthermore, a cam divider is provided between the driving motor and the turntable, the driving motor is connected to the input end of the cam divider, and the turntable is connected to the output end of the cam divider.
[0016] Furthermore, the transfer device includes a conveyor belt, and a plurality of positioning devices are arranged at equal intervals on the conveyor belt.
[0017] Furthermore, the workbench is provided with a smoke exhaust device for absorbing smoke and dust generated during the paint removal process.
[0018] Furthermore, the smoke exhaust device includes a smoke exhaust pipe and a smoke exhaust fan arranged inside the smoke exhaust pipe, and the smoke inlet of the smoke exhaust pipe is arranged toward the positioning device.
[0019] Furthermore, the smoke exhaust pipe includes a first pipe section and a second pipe section, the first pipe section is arranged between the laser head and the positioning device, the second pipe section is connected to the side wall of the first pipe section, and the smoke exhaust fan is arranged inside the second pipe section.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. By setting a positioning device and a laser, the positioning device limits the position of the enameled wire, so that the enameled wire can be stably placed on the workbench. The laser head of the laser emits laser light to the part of the enameled wire to be de-painted. The high temperature vaporizes and evaporates the paint layer on the surface of the paint, achieving relatively fast fixed-point paint removal, thereby improving the efficiency of fixed-point paint removal of the enameled wire, and the paint removal quality is high, and the possibility of damage to the wire core of the enameled wire is reduced;
[0022] 2. By setting up a smoke exhaust device, the high-temperature volatilized paint layer can be immediately absorbed by the smoke exhaust device, reducing the impact of the volatile harmful gases on the environment and reducing the possibility of smoke dust accumulating at the emission end of the laser head and weakening the emitted laser intensity;
[0023] 3. By setting up a transfer device, multiple enameled wires are transferred to the emitting end of the laser head in sequence, so that the paint removal process can be carried out continuously, further improving the efficiency of fixed-point paint removal of enameled wires. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 It is a structural diagram of enameled wire and coil support.
[0026] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0027] Figure 3 It is a schematic structural diagram of the transmission device of an embodiment of the present application.
[0028] Figure numerals: 1. enameled wire; 11. portion to be depainted; 2. coil bracket; 21. mounting hole; 3. workbench; 4. positioning device; 41. positioning seat; 42. limiting rod; 5. laser; 51. laser head; 6. exhaust pipe; 61. first pipe section; 62. second pipe section; 7. transfer device; 71. turntable; 72. drive motor; 73. cam divider. DETAILED DESCRIPTION
[0029] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0030] The embodiment of the present application discloses a device for removing paint from an enameled wire 1 at a fixed point. Figure 1 The enameled wire 1 is wound on the coil support 2. The coil support 2 includes a cylindrical portion and a mounting portion. The mounting portion is welded to the top of the cylindrical portion. The two ends of the enameled wire 1 are respectively overlapped on both sides of the mounting portion. The middle part of the enameled wire 1 is wound on the cylindrical portion. Two mounting holes 21 are provided on the mounting portion to facilitate the installation of the enameled wire 1 on the corresponding equipment. The part 11 of the enameled wire 1 to be de-varnished is located at the two ends of the enameled wire 1 (refer to Figure 1 The position marked with the dotted line in the middle is also the point where the paint needs to be removed by this enameled wire fixed-point paint removal device.
[0031] Please refer to Figure 2The fixed-point paint removal device for the enameled wire 1 includes a workbench 3, a positioning device 4 and a laser 5. The positioning device 4 and the laser 5 are both arranged on the workbench 3. The positioning device 4 is used to limit the enameled wire 1. The laser 5 includes a laser head 51, a laser generator and a support frame. The support frame is fixedly connected to the workbench 3 by bolts. The laser generator can be raised and lowered on the support frame. The specific lifting method can adopt a linear motor or an electric push rod. The laser head 51 is located at one end of the laser generator and is used to emit a laser to the part 11 of the enameled wire 1 to be painted. In this embodiment, the laser head 51 is located above the positioning device 4; as an alternative embodiment, the laser head 51 can also be located on the side of the positioning device 4 to ensure that the part 11 of the enameled wire 1 to be painted is facing the laser head 51.
[0032] When removing the paint from the part 11 of the enameled wire 1 to be removed, first limit the enameled wire 1 on the workbench 3 through the positioning device 4, then turn on the laser 5, and make the laser head 51 emit laser toward the part 11 of the enameled wire 1 to be removed. The high temperature causes the paint layer on the surface of the paint to vaporize and evaporate, thereby achieving relatively fast fixed-point paint removal. Compared with manual sandpaper polishing, laser paint removal is more efficient, and since the power of the laser is adjustable, the laser is adjusted to an appropriate power, so that the possibility of the laser damaging the core of the enameled wire 1 is lower, and the quality of paint removal is higher.
[0033] The positioning device 4 includes a positioning seat 41 and a plurality of limiting rods 42. The positioning seat 41 is in the shape of a rectangular block, and the limiting rods 42 are vertically arranged on the positioning seat 41. In this embodiment, there are two limiting rods 42, both of which are welded to the positioning seat 41. The spacing between the two limiting rods 42 is the same as the spacing between the two mounting holes 21 on the coil support 2, and the limiting rods 42 and the mounting holes 21 have the same diameter. When limiting the position of the enameled wire 1, the bottom surface of the coil support 2 is abutted against the positioning seat 41, and the two limiting rods 42 are respectively passed through the two mounting holes 21. As a result, the enameled wire 1 is horizontally limited. The enameled wire 1 is vertically stable against the positioning seat 41 under the action of its own gravity, thereby limiting the position of the enameled wire 1.
[0034] In order to facilitate the insertion of the limiting rod 42 into the mounting hole 21 on the coil support 2 , a chamfer is provided on the top of the limiting rod 42 so that when the limiting rod contacts the coil support 2 , the chamfered portion serves as a guide.
[0035] During the laser paint removal process, the evaporation of the paint layer will produce a certain amount of smoke and dust. Some of the smoke and dust may float to the emission end of the laser head 51, causing the laser emission intensity to be weakened and affecting the paint removal effect. Therefore, a smoke exhaust device is also provided on the workbench 3. The smoke and dust are absorbed by the smoke exhaust device, which can not only reduce the possibility of smoke and dust blocking the lens, but also reduce the pollution of harmful substances in the smoke and dust to the environment.
[0036] Specifically, the smoke exhaust device includes a smoke exhaust pipe 6 and a smoke exhaust fan arranged inside the smoke exhaust pipe 6. The smoke exhaust pipe is mounted on the workbench through a bracket, or is connected to the external environment and suspended above the workbench. The smoke inlet of the smoke exhaust pipe 6 is set toward the positioning device 4, so that the smoke generated during the paint removal process can be immediately absorbed by the smoke exhaust pipe 6, and the smoke outlet of the smoke exhaust pipe 6 is connected to the smoke purifier.
[0037] To further improve smoke exhaust efficiency, the smoke exhaust pipe 6 is configured with a first pipe section 61 and a second pipe section 62. The first pipe section 61 is vertically positioned between the positioning device 4 and the emitting end of the laser head 51. This ensures that smoke generated by the evaporation of the paint layer is immediately absorbed by the first pipe before it diffuses, and the laser emitted by the laser head 51 can be directed from the inside of the first pipe section 61 toward the enameled wire 1. The second pipe section 62 is connected to the side wall of the first pipe section 61, and the connection between the second pipe section 62 and the first pipe section 61 forms a horizontal T-shape. The smoke exhaust fan is located inside the second pipe section 62. After smoke enters the first pipe section 61, it is absorbed by the second pipe section before reaching the laser head 51. This ensures high smoke exhaust efficiency while preventing smoke from adhering to the laser head 51.
[0038] Please refer to Figure 3 In order to further improve the efficiency of fixed-point paint removal of the enameled wire 1, multiple positioning devices 4 are provided, and a transfer device 7 is provided to transmit the multiple positioning devices 4, so that the enameled wires 1 on the multiple positioning devices 4 can be transferred to the emitting end of the laser head 51 in turn for laser paint removal, thereby achieving continuous paint removal of large quantities of enameled wires 1.
[0039] Specifically, the transfer device 7 includes a turntable 71 and a drive motor 72. The turntable 71 is horizontally arranged on the workbench 3 and is rotatably connected to the workbench 3. The drive motor 72 is a servo motor and is used to drive the turntable 71 to rotate. Multiple positioning devices 4 are evenly spaced around the turntable 71. The drive motor 72 drives the turntable 71 to rotate at equal intervals, so that the positioning devices 4 on the turntable 71 sequentially enter the radiation range of the laser head 51. The enameled wire 1 can be placed on the positioning devices 4 manually or automatically by an automated robot, thereby achieving continuous de-varnishing of large quantities of enameled wire 1 and significantly improving the efficiency of fixed-point de-varnishing of the enameled wire 1.
[0040] To improve the accuracy of each rotation of the turntable 71, a cam divider 73 is provided between the drive motor 72 and the turntable 71. The drive motor 72 is connected to the input of the cam divider 73, and the turntable 71 is connected to the output of the cam divider 73. In this embodiment, four positioning devices 4 are provided on the turntable 71, and the cam divider 73 is a four-station cam divider 73. That is, the drive angle of the cam divider 73 is 90 degrees, which is consistent with the angle of the adjacent positioning devices 4. This allows the enameled wire 1 on the positioning devices 4 to be precisely aligned with the emission end of the laser head 51.
[0041] As an alternative embodiment, the transfer device 7 may also be a conveyor belt. Specifically, the transfer device 7 includes a conveyor belt and a conveyor bracket. The conveyor belt is mounted on the workbench 3 via the conveyor bracket. The conveyor top surface of the conveyor belt is horizontally arranged and located below the laser head 51. Multiple positioning devices 4 are fixed to the surface of the conveyor belt at equal intervals along the length of the conveyor belt. During the fixed-point de-varnishing process of batch enameled wires 1, the enameled wires 1 are placed on the positioning devices 4 manually or by a robot for position limiting. Multiple enameled wires 1 are transferred along the conveyor belt and pass through the laser head 51 at the same time intervals. The laser head 51 emits laser light at the same time intervals, thereby achieving continuous de-varnishing of large batches of enameled wires 1.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A fixed-point paint removal device for enameled wire, characterized in that: include: Workbench; A positioning device, provided on the workbench, for limiting the position of the enameled wire; and a laser, disposed on the workbench, comprising a laser head for emitting laser light toward the portion of the enameled wire to be de-varnished; The positioning device includes a positioning seat and a plurality of limiting rods arranged on the positioning seat, and the limiting rods limit the enameled wire by passing through the coil support.
2. The device for removing paint at a fixed point on an enameled wire according to claim 1, characterized in that: The top of the limiting rod is provided with a chamfer.
3. The device for removing paint at a fixed point on an enameled wire according to claim 1, characterized in that: There are multiple positioning devices, and the workbench is provided with a transfer device for sequentially transferring the multiple positioning devices to the emission end of the laser head.
4. The device for removing paint at a fixed point on an enameled wire according to claim 3, characterized in that: The transfer device includes a turntable and a drive motor. The turntable is rotatably connected to the workbench. A plurality of positioning devices are equidistantly arranged on the turntable. The drive motor is used to drive the turntable to rotate.
5. The device for removing paint at a fixed point on an enameled wire according to claim 4, characterized in that: A cam divider is provided between the driving motor and the rotating disk. The driving motor is connected to the input end of the cam divider, and the rotating disk is connected to the output end of the cam divider.
6. The device for removing paint at a fixed point on an enameled wire according to claim 3, characterized in that: The transfer device comprises a conveyor belt, and a plurality of positioning devices are arranged at equal intervals on the conveyor belt.
7. The device for removing paint at a fixed point on an enameled wire according to claim 1, characterized in that: The workbench is provided with a smoke exhaust device for absorbing smoke and dust generated during the paint removal process.
8. The device for removing paint at a fixed point on an enameled wire according to claim 7, characterized in that: The smoke exhaust device includes a smoke exhaust pipe and a smoke exhaust fan arranged inside the smoke exhaust pipe, and the smoke inlet of the smoke exhaust pipe is arranged toward the positioning device.
9. The device for removing paint at a fixed point on an enameled wire according to claim 8, characterized in that: The smoke exhaust pipe includes a first pipe section and a second pipe section. The first pipe section is arranged between the laser head and the positioning device. The second pipe section is connected to the side wall of the first pipe section. The smoke exhaust fan is arranged inside the second pipe section.