Automatic plane etching machine

By designing an automated planar etching machine, utilizing DC power and sodium chloride solution as the etching medium, combined with servo electric cylinders and guide rod control, automated etching was achieved, solving the problems of low efficiency and poor precision of manual chiseling, and improving processing efficiency and accuracy.

CN223837632UActive Publication Date: 2026-01-27SICHUAN FINE ARTS INST
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Patent Information

Application Number
CN202520100589.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-01-27
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

In existing technologies, manual engraving of patterns on metal surfaces is inefficient and has poor precision, which seriously affects production efficiency and product quality.

Method used

Design an automatic planar etching machine that uses a DC power supply and sodium chloride solution as the etching medium. The movement of the metal nozzle is controlled by a servo cylinder and a guide rod to achieve automated etching. The etching solution is recycled and the etching depth is adjustable.

Benefits of technology

Automated and safe etching has been achieved, improving processing efficiency and precision, and ensuring the stability of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of etching equipment, in particular to an automatic plane etching machine. Comprising a rack, a workbench, a control cabinet and an auxiliary mechanism, the auxiliary mechanism comprises a moving frame, a backflow groove, a storage box, a liquid separation base, a metal spray head, a guiding device, a driving device and a liquid supply device, power supply connection is conducted before machining, and a sodium chloride solution in the storage box is extracted and conveyed through the liquid supply device; the solution is uniformly distributed to a plurality of metal sprayers through the liquid distribution seat to be sprayed on a workpiece, chloride ions ionized from the solution under the action of current can capture metal ions exposed on the surface of the workpiece, the workpiece is etched, and the etching liquid flowing through the surface of the workpiece flows into the storage box again through the flow guide groove to achieve solution circulation. The driving device is used for driving the liquid separation seat and the metal spray head to move, and the moving device is convenient for adjusting the distance between the metal spray head and a workpiece, so that automatic etching is realized, automatic safe etching can be realized during processing, and the working efficiency and precision can be improved during processing production.
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Description

Technical Field

[0001] This utility model relates to the field of etching equipment technology, and in particular to an automatic planar etching machine. Background Technology

[0002] Patterning on metal surfaces typically involves physical or chemical methods. One such method is hand chiseling, a traditional craft that uses specialized tools to create raised or recessed patterns on metal surfaces. This technique utilizes various chiseling tools, such as hook chisels and straight chisels, to carve various patterns and designs onto the metal surface. Chiseling techniques mainly include positive chiseling, negative chiseling, flat chiseling, and openwork, using alternating raised and recessed operations to create rich decorative effects. However, this processing method has low efficiency and poor precision, severely limiting production efficiency and product processing accuracy. Utility Model Content

[0003] The purpose of this invention is to provide an automatic planar etching machine that enables automated and safe etching during processing, thereby improving work efficiency and precision in production.

[0004] To achieve the above objectives, this utility model provides an automatic planar etching machine, including a frame and a worktable. The worktable is mounted on the frame, and a control cabinet is mounted on the frame. The positive terminal interface of the DC power supply in the control cabinet is connected to the workpiece on the worktable via a power cable. The machine also includes auxiliary mechanisms.

[0005] The auxiliary mechanism includes a movable frame, a reflux trough, a storage tank, a liquid distribution seat, metal nozzles, a guiding device, a driving device, and a liquid supply device. The movable frame is located on one side of the worktable. The reflux trough is fixed on the worktable and located below the workpiece. A guide L-shaped pipe is provided at the bottom of the reflux trough, and the inlet of the guide L-shaped pipe is connected to the liquid accumulation tank inside the reflux trough. The storage tank is fixed on the frame and located at the bottom of the outlet of the guide L-shaped pipe. The liquid distribution seat is located on the movable frame near the workpiece. The positional distance between the liquid distribution seat and the workpiece is adjusted by a movable device on the movable frame. Multiple metal nozzles are arranged in a row at intervals on the liquid distribution seat. Each metal nozzle is connected to the negative terminal of the DC power supply in the control cabinet via a power cable. The guiding device is located on the right side of the worktable, and the driving device is located on the left side of the worktable. The liquid supply device is connected to the liquid inlet pipe at the top of the liquid distribution seat, located on the left side of the storage tank, and electrically connected to the control cabinet.

[0006] The moving device includes a servo electric cylinder and a guide rod. The servo electric cylinder is electrically connected to the control cabinet and fixed on the moving frame, and its output end is connected to the liquid distribution seat. The guide rod is threaded to the liquid distribution seat and slidably connected to the moving frame, and is located on the side of the liquid distribution seat closer to the moving frame.

[0007] The guiding device includes a fixed plate and a round rod. The fixed plate is installed on both sides of the right side of the workbench. The round rod is slidably connected to a T-shaped linear sliding bearing installed on the movable frame and rotatably connected to the fixed plate, and is located between the fixed plates.

[0008] The liquid supply device includes a circulating pump and a connecting seat. The circulating pump is fixed on the liquid outlet of the storage tank and electrically connected to the control cabinet. The connecting seat is fixed on the liquid outlet side of the circulating pump and connected to the liquid inlet pipe at the top of the liquid distribution seat through a flexible hose.

[0009] The AC power input interface of the control cabinet is located on the rear cabinet, and the control panel is located on the right cabinet.

[0010] This utility model discloses an automatic planar etching machine. During processing, the positive terminal of the DC power supply in the control cabinet is connected to the metal workpiece via a power cord, and the negative terminal of the DC power supply is connected to the metal nozzle at the spraying point via a power cord. By turning on the circulation pump, sodium chloride solution in the storage tank is extracted and transported as the etching medium. Then, it is evenly distributed to multiple metal nozzles through the liquid distribution seat and sprayed onto the surface of the workpiece. When the DC power (below 36 volts) is applied, the chloride ions in the solution replace the metal ions on the metal plate. The metal ions in the workpiece move towards the negative terminal, thereby achieving the etching effect. The etching solution flowing from the workpiece surface flows back into the storage tank through the L-shaped guide tube at the bottom of the guide channel to achieve solution circulation, thus realizing automatic etching. This allows for automated and safe etching during processing, which is beneficial to improving work efficiency and accuracy in production. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of the automatic planar etching machine of this utility model.

[0013] Figure 2 This is a rear view of the automatic planar etching machine of this utility model.

[0014] Figure 3 This is a schematic diagram of the liquid distribution seat of this utility model.

[0015] In the diagram: 101-Frame, 102-Workbench, 103-Control Cabinet, 104-DC Power Positive Interface, 105-DC Power Negative Interface, 106-Moving Frame, 107-Return Tank, 108-Storage Box, 109-Dispensing Seat, 110-Metal Nozzle, 111-Drive Device, 112-Servo Cylinder, 113-Guide Rod, 114-Fixing Plate, 115-Round Rod, 116-Circulating Pump, 117-Connecting Seat, 118-AC Power Input Interface. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of an automatic planar etching machine. Figure 2 This is a rear view of an automatic planar etching machine. Figure 3 This is a schematic diagram of the liquid distribution seat 109. This utility model provides an automatic planar etching machine: it includes a frame 101, a worktable 102, a control cabinet 103, and auxiliary mechanisms. The auxiliary mechanisms include a moving frame 106, a return channel 107, a storage tank 108, a liquid distribution seat 109, a metal nozzle 110, a guiding device, a driving device 111, and a liquid supply device. The moving device includes a servo electric cylinder 112 and a guide rod 113. The guiding device includes a fixed plate 114 and a round rod 115. The liquid supply device includes a circulating pump 116 and a connecting seat 117. The aforementioned solution enables automated and safe etching during processing, which is beneficial for improving work efficiency and accuracy in production. It is understood that the aforementioned solution can improve work efficiency and accuracy in production.

[0018] In this embodiment, the workbench 102 is mounted on the frame 101, and a control cabinet 103 is mounted on the frame 101. The positive DC power interface 104 inside the control cabinet 103 is connected to the workpiece on the workbench 102 via a power cable. After the workbench 102 is welded and fixed, it can be used with an L-shaped clamp to fix the workpiece. The control cabinet 103 is fixed to the frame 101 with bolts. The control cabinet 103 is equipped with an AC to DC conversion mechanism for providing DC power. The DC power is infinitely adjustable from 0-36V and has overload protection. Other electrical control components are also installed inside the control cabinet 103 to facilitate the control of other working components of the equipment. The bottom of the frame 101 can also be placed directly on a rectangular water receiving tray with the opening facing upward to avoid the concentrated collection of splashed working fluid.

[0019] The movable frame 106 is disposed on one side of the worktable 102. The return trough 107 is fixed on the worktable 102 and located below the workpiece. A guide L-shaped pipe is provided at the bottom of the return trough 107, and the inlet of the guide L-shaped pipe is connected to the liquid accumulation tank inside the return trough 107. The storage tank 108 is fixed on the frame 101 and located at the bottom of the outlet of the guide L-shaped pipe. The liquid distribution seat 109 is disposed on the side of the movable frame 106 near the workpiece. The liquid distribution seat 109 is connected to a movable device disposed on the movable frame 106. The distance between the nozzle and the workpiece is adjusted. Multiple metal nozzles 110 are arranged in a line at intervals on the liquid distribution seat 109. The metal nozzles 110 are connected to the negative DC power interface 105 in the control cabinet 103 via power lines. The guide device is located on the right side of the workbench 102, and the drive device 111 is located on the left side of the workbench 102. The liquid supply device is connected to the liquid inlet pipe at the top of the liquid distribution seat 109 and is located on the left side of the storage tank 108, and is electrically connected to the control cabinet 103. The reflux trough 107 is bolted to the workbench 102 from back to front and does not penetrate the internal liquid accumulation tank. A guide L-shaped pipe is installed at the bottom of the reflux trough 107, with its inlet communicating with the internal liquid accumulation tank to facilitate the reflux of the working fluid. The storage tank 108 is bolted to the frame 101 with its opening facing upwards. Multiple metal nozzles 110 are installed on the dispensing seat 109, each connected to the negative DC power interface 105 in the control cabinet 103 via a power cord. The dispensing seat 109 is moved relative to the workpiece via a moving device mounted on the moving frame 106. The position spacing adjustment facilitates etching depth adjustment. The drive device 111 consists of a servo motor and a lead screw transmission assembly. The lead screw transmission assembly is located on the left side of the worktable 102. The T-shaped nut of the transmission lead screw of the lead screw transmission mechanism is fixed on the left side of the moving frame 106, and the output shaft of the transmission lead screw is connected to the servo motor through a coupling. During operation, the servo motor actuates, which drives the transmission lead screw to rotate. With the cooperation of the guide device, the moving frame 106 moves up and down, realizing the movement of the metal nozzle 110. The liquid supply device is used for extracting and conveying the working liquid. The frame 101, the worktable 102, and the liquid distribution seat 109 are all made of insulating materials.

[0020] Secondly, the servo cylinder 112 is electrically connected to the control cabinet 103 and fixed on the movable frame 106, with its output end connected to the dispensing seat 109; the guide rod 113 is threadedly connected to the dispensing seat 109 and slidably connected to the movable frame 106, and is located on the side of the dispensing seat 109 closer to the movable frame 106. The servo cylinder 112 is fixed to the movable frame 106 by bolts, and its output end is connected to the connecting ear on the left side of the dispensing seat 109 by bolts. The servo cylinder 112 is an integrated product of servo motor and lead screw, which can achieve good linear control. The front threaded end of the guide rod 113 is installed and engaged with the threaded hole on the right connecting ear of the dispensing seat 109, and the rear optical shaft is slidably engaged with the T-shaped linear sliding bearing provided on the movable frame 106.

[0021] Then, the fixing plates 114 are installed on both sides of the right side of the workbench 102; the round rod 115 is slidably connected to the T-shaped linear sliding bearings installed on the movable frame 106, and rotatably connected to the fixing plates 114, and is located between the fixing plates 114. The fixing plates 114 are fixed to the workbench 102 by bolts, and the two sides of the round rod 115 are installed on the fixing plates 114 by rotating bearings, with the optical axis slidingly engaged with the T-shaped linear sliding bearings installed on the movable frame 106.

[0022] Furthermore, the circulating pump 116 is fixed to the outlet of the storage tank 108 and electrically connected to the control cabinet 103; the connecting seat 117 is fixed to the outlet side of the circulating pump 116 and connected to the inlet pipe at the top of the distributor 109 via a flexible hose. The inlet flange of the circulating pump 116 is fixed to the outlet of the storage tank 108 with bolts, and the connecting seat 117 is installed on the outlet flange with screws and nuts. The outlet of the connecting seat 117 is connected to the inlet pipe at the top of the distributor 109 via a flexible hose.

[0023] Finally, the AC power input interface 118 of the control cabinet 103 is located on the rear cabinet, and the control panel is located on the right cabinet. The AC power input interface 118 is used for main power input, and the control panel is used for equipment operation control.

[0024] When using this invention to achieve automated and safe etching during processing, which improves work efficiency and precision, the process involves first connecting the positive DC power interface 104 in the control cabinet 103 to the metal workpiece via a power cable, and connecting the negative DC power interface 105 to the metal nozzle 110 at the spraying point via a power cable. The circulating pump 116 is activated to extract and transport the sodium chloride solution in the storage tank 108 as the etching medium. The solution is then evenly distributed to multiple metal nozzles 110 via the distributor 109 and sprayed onto the workpiece surface. By applying direct current (below 36 volts), chloride ions in the solution replace metal ions on the metal surface, causing the metal ions in the workpiece to move towards the negative electrode, thus achieving the etching effect. The etching process is completed by the flow of the etchant from the workpiece surface. The solution circulates back into the storage tank 108 through the L-shaped guide tube at the bottom of the guide channel 107, thus achieving automatic etching. When adjusting the etching depth, the drive device 111 first controls the number of times the metal nozzle 110 moves up and down. Then, the servo cylinder 112 and the guide rod 113 work together to adjust the distance between the metal nozzle 110 and the workpiece. Finally, the voltage of the DC power supply is adjusted to change the current, thus achieving coordinated adjustment. At the same time, prolonged high-current operation should be avoided during etching to prevent the temperature of the etching solution from being too high and affecting the protective layer on the workpiece, resulting in defective products. With the above-mentioned operation, the etching depth can be adjusted, thus enabling automated and safe etching during processing, which is beneficial to improving work efficiency and accuracy during production.

[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An automatic planar etching machine, comprising a frame and a worktable, the worktable being mounted on the frame, a control cabinet being mounted on the frame, and the positive terminal of a DC power supply in the control cabinet being connected to a workpiece on the worktable via a power cable, characterized in that: It also includes auxiliary mechanisms; The auxiliary mechanism includes a movable frame, a reflux trough, a storage tank, a liquid distribution seat, metal nozzles, a guiding device, a driving device, and a liquid supply device. The movable frame is located on one side of the worktable. The reflux trough is fixed on the worktable and located below the workpiece. A guide L-shaped pipe is provided at the bottom of the reflux trough, and the inlet of the guide L-shaped pipe is connected to the liquid accumulation tank inside the reflux trough. The storage tank is fixed on the frame and located at the bottom of the outlet of the guide L-shaped pipe. The liquid distribution seat is located on the movable frame near the workpiece. The positional distance between the liquid distribution seat and the workpiece is adjusted by a movable device on the movable frame. Multiple metal nozzles are arranged in a row at intervals on the liquid distribution seat. Each metal nozzle is connected to the negative terminal of the DC power supply in the control cabinet via a power cable. The guiding device is located on the right side of the worktable, and the driving device is located on the left side of the worktable. The liquid supply device is connected to the liquid inlet pipe at the top of the liquid distribution seat, located on the left side of the storage tank, and electrically connected to the control cabinet.

2. The automatic planar etching machine as described in claim 1, characterized in that: The moving device includes a servo electric cylinder and a guide rod. The servo electric cylinder is electrically connected to the control cabinet and fixed on the moving frame, and its output end is connected to the liquid distribution seat. The guide rod is threaded to the liquid distribution seat and slidably connected to the moving frame, and is located on the side of the liquid distribution seat close to the moving frame.

3. The automatic planar etching machine as described in claim 1, characterized in that: The guiding device includes a fixed plate and a round rod. The fixed plate is installed on both sides of the right side of the workbench. The round rod is slidably connected to a T-shaped linear sliding bearing installed on the movable frame and rotatably connected to the fixed plate, and is located between the fixed plates.

4. The automatic planar etching machine as described in claim 1, characterized in that: The liquid supply device includes a circulating pump and a connecting seat. The circulating pump is fixed on the liquid outlet of the storage tank and electrically connected to the control cabinet. The connecting seat is fixed on the liquid outlet side of the circulating pump and connected to the liquid inlet pipe at the top of the liquid distribution seat through a flexible hose.

5. The automatic planar etching machine as described in claim 1, characterized in that... : The AC power input interface of the control cabinet is located on the rear cabinet, and the control panel is located on the right cabinet.