Spraying-free electromagnetic shielding sheet production device

Abstract

The utility model belongs to the technical field of spraying-free electromagnetic shielding sheets, and provides a spraying-free electromagnetic shielding sheet production device which comprises a mounting seat, a polishing mechanism, a clamping mechanism and a detection mechanism, the grinding mechanism is composed of a mounting frame and a grinding motor, the clamping mechanism is composed of two clamps, and the detection mechanism is composed of two visual sensors, a laser sensor and a control box. A mounting groove is formed in the bottom of the mounting seat, sliding blocks extending downwards are arranged at the bottoms of the two clamps, the sliding blocks are movably clamped in the mounting groove, and a bidirectional adjusting screw rod is transversely inserted in the mounting groove; according to the scheme, the shaping and grinding steps in the later production period of the electromagnetic shielding sheet are optimized, accurate control over the grinding depth is achieved, it is guaranteed that the grinding quality of the electromagnetic shielding sheet is uniform and consistent, fluctuation of the surface of the electromagnetic shielding sheet is maintained within a reasonable range, and automatic control and optimization of the whole production process are achieved.

Description

Technical Field

[0001] This utility model relates to the field of paint-free electromagnetic shielding sheet technology, specifically a paint-free electromagnetic shielding sheet production device. Background Technology

[0002] With the continuous miniaturization and functional integration of electronic devices, the importance of electromagnetic shielding technology is becoming increasingly prominent. As a new type of electromagnetic shielding material, paint-free electromagnetic shielding sheets have advantages such as simple production process, low cost, and environmental friendliness, and have broad application prospects in the field of electronic device manufacturing. After molding, electromagnetic shielding sheets need to be polished to keep the tiny bumps and depressions on the surface of the electromagnetic shielding sheet within a reasonable range, which can increase the number of electromagnetic wave reflections and scatterings and enhance the shielding effect. To this end, we propose a device for shaping and polishing electromagnetic shielding sheets in the later stage of production. Utility Model Content

[0003] The purpose of this invention is to provide a spray-free electromagnetic shielding sheet production device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a paint-free electromagnetic shielding sheet production device, comprising a mounting base, a grinding mechanism, a clamping mechanism, and a testing mechanism;

[0005] The grinding mechanism consists of a mounting frame and a grinding motor; the clamping mechanism consists of two clamps; and the detection mechanism consists of two vision sensors, a laser sensor, and a control box.

[0006] The bottom of the mounting base is provided with a mounting groove, and the bottom of both clamps is provided with downward extending sliders, which are movably engaged in the mounting groove. A bidirectional adjusting screw is inserted horizontally into the mounting groove, and the bidirectional adjusting screw is screwed to the sliders at the bottom of the two clamps respectively.

[0007] A secondary wheel is installed at the left end of the bidirectional adjusting screw, a drive motor is installed at the left end of the rear side of the mounting base, and a main wheel is installed at the left end of the drive motor. Both the main wheel and the secondary wheel are pulleys. In use, a belt is connected to the main wheel and the secondary wheel, and the bidirectional adjusting screw is driven to rotate by the drive motor on the rear left side.

[0008] The mounting base has a track on its rear side top, and a mounting frame is movably engaged on the track. A grinding motor is mounted on the front side of the mounting frame, and a sliding frame is mounted on the rear side of the grinding motor. The sliding frame is movably engaged on the front side of the mounting frame. A lifting motor is mounted on the top of the mounting frame, and a threaded rod is provided at the bottom of the lifting motor. The threaded rod is screwed downward into the sliding frame of the grinding motor. The grinding motor is driven by the lifting motor to complete the vertical movement. A grinding head is mounted on the bottom transmission end of the grinding motor.

[0009] A grinding adjustment screw is horizontally arranged on the upper part of the mounting base. A driven pulley is installed on the right end of the grinding adjustment screw. A drive motor is also installed on the right side of the rear side of the mounting base. A drive pulley is installed on the right end of the drive motor on the rear right side. A belt is also connected between the drive pulley and the driven pulley for transmission. The grinding adjustment screw is driven to rotate by the drive motor on the rear right side. The position of the grinding motor is adjusted by the grinding adjustment screw.

[0010] Preferably, a protective drag chain is provided on the rear side of the mounting base; a tray is installed on the inner bottom of both clamps, and the tray extends inward to support the paint-free electromagnetic shielding sheet.

[0011] Preferably, the left and right sides of the bidirectional adjusting screw are provided with opposite threads, so that when the bidirectional adjusting screw rotates, it can drive the two clamps to move in the same or opposite directions, and the two clamps hold an electromagnetic shielding sheet that does not require spraying.

[0012] Preferably, the grinding adjustment screw is threaded through and screwed into the mounting bracket, and the grinding adjustment screw does not contact the threaded rod of the lifting motor.

[0013] Preferably, a laser sensor is installed at the bottom of the front side of the mounting bracket, and vision sensors are symmetrically installed at the diagonal of the inner side of the mounting base, with both vision sensors tilted towards the position between the two clamps.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This solution optimizes the shaping and sanding step in the later stage of electromagnetic shielding sheet production, achieving precise control of the sanding depth, ensuring uniform sanding quality of the electromagnetic shielding sheet, maintaining the surface undulation of the electromagnetic shielding sheet within a reasonable range, and realizing automated control and optimization of the entire production process. Attached Figure Description

[0016] Figure 1 This is the front view of the present utility model;

[0017] Figure 2 This is a front view of the present utility model;

[0018] Figure 3 This is a rear view of the present invention;

[0019] Figure 4 This is the left view of the present invention.

[0020] In the diagram: 1 Mounting base, 2 Bidirectional adjusting screw, 3 Clamp, 4 Tray, 5 Control box, 6 Mounting bracket, 7 Grinding motor, 8 Lifting motor, 9 Grinding head, 10 Laser sensor, 11 Grinding adjusting screw, 12 Driven pulley, 13 Drive motor, 14 Drive pulley, 15 Protective cable chain, 16 Vision sensor, 17 Main wheel, 18 Auxiliary wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Example:

[0024] Please see Figure 1-4 The present invention provides the following technical solution: a production device for non-coating electromagnetic shielding sheets, comprising a mounting base 1 and a grinding mechanism, a clamping mechanism, and a testing mechanism;

[0025] The grinding mechanism consists of a mounting frame 6 and a grinding motor 7; the clamping mechanism consists of two clamps 3; and the detection mechanism consists of two vision sensors 16, a laser sensor 10, and a control box 5.

[0026] The bottom of the mounting base 1 is provided with a mounting groove. The bottom of the two clamps 3 is provided with downward extending sliders, and the sliders are movably engaged in the mounting groove. A bidirectional adjusting screw 2 is inserted horizontally in the mounting groove, and the bidirectional adjusting screw 2 is screwed to the sliders at the bottom of the two clamps 3 respectively.

[0027] The two-way adjusting screw 2 has opposite threads on its left and right sides, so that when the two-way adjusting screw 2 rotates, it can drive the two clamps 3 to move in the same or opposite direction. The two clamps 3 hold an electromagnetic shielding sheet that does not need to be sprayed.

[0028] A secondary wheel 18 is installed on the left end of the bidirectional adjusting screw 2, and a drive motor 13 is installed on the left end of the rear side of the mounting base 1. A main wheel 17 is installed on the left end of the drive motor 13. Both the main wheel 17 and the secondary wheel 18 are pulleys. When in use, a belt is connected to the main wheel 17 and the secondary wheel 18, and the bidirectional adjusting screw 2 is driven to rotate by the drive motor 13 on the rear left side.

[0029] A track is provided on the top of the rear side of the mounting base 1. A mounting bracket 6 is movably engaged on the track. A grinding motor 7 is mounted on the front side of the mounting bracket 6. A sliding bracket is mounted on the rear side of the grinding motor 7. The sliding bracket is movably engaged on the front side of the mounting bracket 6. A lifting motor 8 is mounted on the top of the mounting bracket 6. A threaded rod is provided at the bottom of the lifting motor 8. The threaded rod is screwed downward into the sliding bracket of the grinding motor 7. The grinding motor 7 can be moved up and down by the drive of the lifting motor 8.

[0030] The bottom drive end of the grinding motor 7 is equipped with a grinding head 9; the bottom grinding head 9 is made of diamond abrasive with high hardness and high wear resistance. According to the processing requirements of the electromagnetic shielding sheet, different grit sizes of grinding heads can be selected to achieve different processing processes such as coarse grinding and fine grinding.

[0031] A laser sensor 10 is installed at the bottom of the front side of the mounting bracket 6, and vision sensors 16 are symmetrically installed at the diagonal of the inner side of the mounting base 1. Both vision sensors 16 are tilted towards the position between the two clamps 3.

[0032] A grinding adjustment screw 11 is horizontally arranged on the upper part of the mounting base 1. The grinding adjustment screw 11 is threaded through and screwed into the mounting bracket 6, and the grinding adjustment screw 11 does not contact the threaded rod of the lifting motor 8.

[0033] A driven pulley 12 is installed at the right end of the grinding adjustment screw 11. A drive motor 13 is also installed on the right side of the rear side of the mounting base 1. A drive pulley 14 is installed at the right end of the drive motor 13 on the rear right side. A belt is also connected between the drive pulley 14 and the driven pulley 12 for transmission. The grinding adjustment screw 11 is driven to rotate by the drive motor 13 on the rear right side. The position of the grinding motor 7 is adjusted by the grinding adjustment screw 11.

[0034] A protective drag chain 15 is provided on the rear side of the mounting base 1. The protective drag chain 15 is made of high-strength engineering plastic drag chain, with cables and air pipes arranged inside to ensure that the power and control lines of the grinding motor 7 and the air circuit (if any) can be stably connected during the movement of the mounting frame 6, avoiding the tangling and damage of the lines, while ensuring the flexibility and accuracy of the movement of the mounting frame 6.

[0035] Both clamps 3 have trays 4 installed on their inner bottom sides. The trays 4 extend inward to support the paint-free electromagnetic shielding sheet.

[0036] The vision sensor 16 uses a high-resolution industrial camera to clearly capture surface images of the electromagnetic shielding sheet. Through image processing algorithms, it performs real-time detection and analysis of surface defects and dimensional accuracy of the electromagnetic shielding sheet. The laser sensor 10 uses a high-precision laser displacement sensor to accurately measure the distance between the grinding head 9 and the electromagnetic shielding sheet. Through feedback control, it achieves precise control of the grinding depth, ensuring uniform grinding quality of the electromagnetic shielding sheet. The two vision sensors 16 are symmetrically installed on the inner diagonal of the mounting base 1, tilted towards the position between the two clamps 3, which can fully cover the surface of the electromagnetic shielding sheet and ensure no blind spots in the detection. The laser sensor 10 is installed on the bottom front side of the mounting bracket 6, close to the grinding head 9, which can monitor parameter changes during the grinding process in real time and provide data support for the optimization of the grinding process.

[0037] The principle of the laser sensor 10 is to emit a laser beam to the surface of an object and then receive the reflected light; the micro-undulations of the object's surface are measured based on the reflection characteristics of light; for smooth surfaces, the angle and intensity of the reflected light are relatively concentrated and stable; while rough surfaces cause the reflected light to be scattered, resulting in greater changes in the intensity distribution and angle of the received light.

[0038] The principle of the visual sensor 16 is to use a camera to acquire images of the object's surface and use image analysis algorithms to evaluate the surface smoothness. For example, by analyzing the grayscale changes in the image, the grayscale changes of a smooth surface are relatively gradual, while the grayscale of a rough surface will have larger changes in local areas. At the same time, edge detection algorithms can be used because the edge contours of a rough surface are not as clear as those of a smooth surface.

[0039] The control box 5 uses a programmable logic controller (PLC) as the core control unit, equipped with a high-performance processor and a large-capacity memory, which can quickly and accurately process the data collected by the vision sensor 16 and the laser sensor 10. Through the preset control algorithm, the control box 5 can adjust the speed of the grinding motor 7, the displacement of the lifting motor 8, the rotation of the bidirectional adjusting screw 2, and the motion parameters of other related components in real time, so as to realize the automated control and optimization of the entire production process.

[0040] Working principle: The paint-free electromagnetic shielding sheet is placed between two clamps 3. The drive motor 13 drives the main wheel 17 to rotate, which in turn drives the auxiliary wheel 18 and the bidirectional adjusting screw 2 to rotate via a belt. Since the threads on the left and right sides of the bidirectional adjusting screw 2 are opposite, the two clamps 3 can move towards or away from each other, accurately adjusting and stabilizing the electromagnetic shielding sheet. The tray 4 also supports the electromagnetic shielding sheet to prevent it from sagging or shifting. The drive motor 13 on the right side of the mounting base 1 drives the active pulley 14 to rotate, which in turn drives the driven pulley 12 and the grinding adjusting screw 11 to rotate via a belt, thus fine-tuning the horizontal position of the mounting frame 6 and determining the lateral starting position for grinding.

[0041] The grinding motor 7 is started, which drives the grinding head 9 to rotate at high speed. At the same time, the lifting motor 8 works, which drives the grinding motor 7 and the grinding head 9 to move up and down in the vertical direction through the threaded rod. This allows the grinding head 9 to contact and grind the surface of the electromagnetic shielding sheet, performing rough grinding, fine grinding, and other operations to achieve the required surface roughness and flatness. During the grinding process, the laser sensor 10 monitors the distance between the grinding head 9 and the electromagnetic shielding sheet in real time and feeds the data back to the control box 5. The control box 5 adjusts the speed of the grinding motor 7 and the action of the lifting motor 8 according to the set parameters to ensure uniform grinding accuracy and keep the surface undulations of the electromagnetic shielding sheet within a reasonable range.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0043] 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. A coating-free electromagnetic shielding sheet production device, comprising a mounting base (1) and a grinding mechanism, a clamping mechanism, and a testing mechanism, characterized in that: The grinding mechanism consists of a mounting frame (6) and a grinding motor (7); the clamping mechanism consists of two clamps (3); and the detection mechanism consists of two vision sensors (16), a laser sensor (10), and a control box (5). The bottom of the mounting base (1) is provided with a mounting groove, and the bottom of each of the two clamps (3) is provided with a downwardly extending slider, which is movably engaged in the mounting groove. A bidirectional adjusting screw (2) is horizontally inserted into the mounting groove, and the bidirectional adjusting screw (2) is screwed to the slider at the bottom of the two clamps (3) respectively. The left end of the bidirectional adjusting screw (2) is equipped with a secondary wheel (18), and the left end of the rear side of the mounting base (1) is equipped with a drive motor (13). The left end of the drive motor (13) is equipped with a main wheel (17). Both the main wheel (17) and the secondary wheel (18) are pulleys. When in use, a belt is connected to the main wheel (17) and the secondary wheel (18), and the bidirectional adjusting screw (2) is driven to rotate by the drive motor (13) on the rear left side. The mounting base (1) has a track on its rear side top, and a mounting frame (6) is movably engaged on the track. A grinding motor (7) is mounted on the front side of the mounting frame (6), and a sliding frame is mounted on the rear side of the grinding motor (7). The sliding frame is movably engaged on the front side of the mounting frame (6). A lifting motor (8) is mounted on the top of the mounting frame (6). A threaded rod is provided at the bottom of the lifting motor (8), and the threaded rod is screwed downward into the sliding frame of the grinding motor (7). The grinding motor (7) is driven by the lifting motor (8) to complete the up and down movement. A grinding head (9) is mounted on the bottom transmission end of the grinding motor (7). A grinding adjustment screw (11) is horizontally arranged on the upper part of the mounting base (1). A driven pulley (12) is installed on the right end of the grinding adjustment screw (11). A drive motor (13) is also installed on the right side of the rear side of the mounting base (1). A drive pulley (14) is installed on the right end of the drive motor (13) on the rear right side. A belt is also connected between the drive pulley (14) and the driven pulley (12) for transmission. The grinding adjustment screw (11) is driven to rotate by the drive motor (13) on the rear right side. The position of the grinding motor (7) is adjusted by the grinding adjustment screw (11).

2. The coating-free electromagnetic shielding sheet production device according to claim 1, characterized in that: A protective drag chain (15) is provided on the rear side of the mounting base (1); a tray (4) is installed on the inner bottom of both clamps (3), and the tray (4) extends inward to support the paint-free electromagnetic shielding sheet.

3. The coating-free electromagnetic shielding sheet production device according to claim 1, characterized in that: The two-way adjusting screw (2) has opposite threads on its left and right sides, so that when the two-way adjusting screw (2) rotates, it can drive the two clamps (3) to move in the same or opposite directions. The two clamps (3) hold a paint-free electromagnetic shielding sheet.

4. The coating-free electromagnetic shielding sheet production device according to claim 1, characterized in that: The grinding adjustment screw (11) is threaded through and screwed into the mounting bracket (6), and the grinding adjustment screw (11) does not contact the threaded rod of the lifting motor (8).

5. The coating-free electromagnetic shielding sheet production device according to claim 1, characterized in that: A laser sensor (10) is installed on the bottom of the front side of the mounting bracket (6), and a vision sensor (16) is symmetrically installed on the inner diagonal of the mounting base (1). Both vision sensors (16) are tilted towards the position between the two clamps (3).

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