Diaphragm thickness measuring and code spraying device and detection equipment

Abstract

The utility model provides a diaphragm thickness measuring and code spraying device and detection equipment, and relates to the technical field of secondary batteries. The diaphragm thickness measuring and code spraying device comprises a thickness measuring mechanism, a distance measuring mechanism and a code spraying mechanism. The thickness measuring mechanism comprises a scanner and a control system, the scanner is electrically connected with the control system, and the scanner is used for acquiring thickness information of the diaphragm and transmitting the thickness information to the control system; the distance measuring mechanism is electrically connected with the control system and is used for acquiring moving distance information of the diaphragm and transmitting the moving distance information to the control system; the code spraying mechanism is electrically connected with the control system; wherein the distance measuring mechanism is located between the scanner and the code spraying mechanism, and the control system controls the code spraying mechanism to spray codes on the thickness abnormal area of the diaphragm according to the thickness information and the moving distance information, so that the thickness abnormal area of the diaphragm is marked. And during use, only the marked abnormal diaphragm is scrapped, and the residual diaphragm can still be used normally, so that the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary batteries, in particular to a diaphragm thickness measurement and inkjet coding device and a detection device. Background Art

[0002] In the lithium battery diaphragm manufacturing industry, thickness measurement is an essential and important link. The common method is to monitor the diaphragm thickness through the scanner of a ray thickness gauge, and transmit the thickness data to the control system of the thickness gauge, and continuous curve data is presented on the control system.

[0003] However, through this curve data, only whether there is an area with abnormal thickness in the diaphragm can be judged, and the specific position of the unqualified diaphragm cannot be monitored. Therefore, when an abnormality occurs, the whole batch of diaphragms can only be scrapped, resulting in high costs. Summary of the Utility Model

[0004] In order to solve the problems existing in the prior art, one of the purposes of the utility model is to provide a diaphragm thickness measurement and inkjet coding device.

[0005] The utility model provides the following technical solutions:

[0006] A diaphragm thickness measurement and inkjet coding device includes:

[0007] A thickness measurement mechanism, including a scanner and a control system, the scanner is electrically connected to the control system, and the scanner is used to obtain the thickness information of the diaphragm and transmit the thickness information to the control system;

[0008] A distance measurement mechanism, electrically connected to the control system, the distance measurement mechanism is used to obtain the moving distance information of the diaphragm and transmit the moving distance information to the control system; and

[0009] An inkjet coding mechanism, electrically connected to the control system;

[0010] Wherein, the distance measurement mechanism is located between the scanner and the inkjet coding mechanism, and the control system controls the inkjet coding mechanism to inkjet code the area with abnormal thickness of the diaphragm according to the thickness information and the moving distance information.

[0011] As a further optional solution to the diaphragm thickness measurement and inkjet coding device, the inkjet coding mechanism includes a laser marking head, a flexible connecting pipe and a laser marking machine, the laser marking head is connected to the laser marking machine through the flexible connecting pipe, and the laser marking machine is electrically connected to the control system;

[0012] The distance measurement mechanism is located between the scanner and the laser marking head.

[0013] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the diaphragm thickness measuring and inkjet coding device further includes a transverse movement mechanism for driving the laser marking head to move along the width direction of the diaphragm.

[0014] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the transverse movement mechanism includes a first bracket, a lead screw, a driving motor, and a lead screw bearing. The lead screw is rotatably arranged on the first bracket. The driving end of the driving motor is connected to the lead screw. The lead screw bearing is sleeved on the lead screw, and the lead screw bearing is connected to the laser marking head.

[0015] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the transverse movement mechanism further includes a guide rail and a plurality of gripping members. The guide rail and the gripping members cooperate to move the flexible connecting pipe along the width direction of the diaphragm.

[0016] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the guide rail is arranged on the first bracket. The gripping member includes a sliding portion and a gripping portion connected to each other. The sliding portion is slidably arranged on the guide rail, and the gripping portion grips the flexible connecting pipe.

[0017] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the distance measuring mechanism includes a second bracket, an encoder, and a length measuring wheel. The encoder is arranged on the second bracket and is electrically connected to the control system. The encoder has a rotating shaft connecting the length measuring wheel, and the length measuring wheel is used to abut against the diaphragm.

[0018] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the distance measuring mechanism further includes a hinge fixing angle code and a fixing plate. The hinge fixing angle code is connected to the second bracket. The fixing plate is provided with an adjustment slot, and a fastening member is passed through the adjustment slot. The fixing plate is connected to the hinge fixing angle code through the fastening member, and the encoder is arranged on the fixing plate.

[0019] As a further optional solution for the diaphragm thickness measuring and inkjet coding device, the diaphragm thickness measuring and inkjet coding device further includes an alarm, which is electrically connected to the control system.

[0020] Another object of the present utility model is to provide a detection device.

[0021] The present utility model provides the following technical solutions:

[0022] A detection device includes the above-mentioned diaphragm thickness measuring and inkjet coding device.

[0023] The embodiments of the present utility model have the following beneficial effects:

[0024] When using the above diaphragm thickness measurement and inkjet coding device to detect the diaphragm, the scanner in the thickness measurement mechanism obtains the thickness information of the diaphragm and transmits the thickness information to the control system. The control system processes the thickness information in real time and identifies the abnormal thickness area of the diaphragm. At the same time, the distance measurement mechanism arranged between the scanner and the inkjet coding mechanism obtains the moving distance information of the diaphragm and transmits the moving distance information to the control system. Since the control system identifies the abnormal thickness area of the diaphragm, when the moving distance of the diaphragm is equal to the distance between the scanner and the inkjet coding mechanism, it indicates that the abnormal thickness area of the diaphragm moves to the inkjet coding mechanism. At this time, the control system controls the inkjet coding mechanism to inkjet the abnormal thickness area of the diaphragm, thereby marking the abnormal thickness area of the diaphragm. When in use, only the marked abnormal diaphragms can be scrapped, while the remaining diaphragms can still be used normally, saving costs.

[0025] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0027] Figure 1 Shows the overall structural schematic diagram of a diaphragm thickness measurement and inkjet coding device provided by an embodiment of the present invention;

[0028] Figure 2 Shows the partial structural schematic diagram of a diaphragm thickness measurement and inkjet coding device provided by an embodiment of the present invention;

[0029] Figure 3 Shows the structural schematic diagram of a distance measurement mechanism in a diaphragm thickness measurement and inkjet coding device provided by an embodiment of the present invention.

[0030] MAIN ELEMENT SYMBOL DESCRIPTION:

[0031] 100 - Thickness measuring mechanism; 110 - Control system; 200 - Distance measuring mechanism; 210 - Second bracket; 220 - Encoder; 230 - Metering wheel; 240 - Hinge fixing angle code; 250 - Fixed plate; 251 - Adjusting slot; 252 - Fastener; 300 - Inkjet coding mechanism; 310 - Laser coding head; 320 - Flexible connecting pipe; 330 - Laser coder; 400 - Transverse movement mechanism; 410 - First bracket; 420 - Lead screw; 430 - Driving motor; 440 - Lead screw bearing; 450 - Fixed frame; 460 - Guide rail; 470 - Gripping member; 471 - Sliding part; 472 - Gripping part; 473 - Elastic connecting part; 500 - Diaphragm; 600 - Passive roller. Detailed implementation mode

[0032] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise clearly and specifically defined.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of the template herein are for the purpose of describing specific embodiments only and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] Embodiment

[0038] Please refer to Figure 1 and Figure 2 simultaneously, this embodiment provides a diaphragm thickness measurement and inkjet coding device for measuring the thickness of a lithium battery diaphragm and marking the defective positions. The diaphragm thickness measurement and inkjet coding device includes a thickness measurement mechanism 100, a distance measurement mechanism 200, and an inkjet coding mechanism 300.

[0039] The thickness measurement mechanism 100 includes a scanner and a control system 110, and the scanner is electrically connected to the control system 110. During use, the scanner is used to obtain the thickness information of the diaphragm 500 and transmit the thickness information to the control system 110.

[0040] In addition, the distance measurement mechanism 200 and the inkjet coding mechanism 300 are respectively electrically connected to the control system 110. During use, the distance measurement mechanism 200 is used to obtain the moving distance information of the diaphragm 500 and transmit the moving distance information to the control system 110.

[0041] Among them, the distance measurement mechanism 200 is located between the scanner and the inkjet coding mechanism 300, and the control system 110 controls the inkjet coding mechanism 300 to inkjet code the thickness abnormal area of the diaphragm 500 according to the thickness information and the moving distance information.

[0042] When using the above diaphragm thickness measurement and inkjet coding device to detect the diaphragm 500, the scanner in the thickness measurement mechanism 100 obtains the thickness information of the diaphragm 500 and transmits the thickness information to the control system 110. The control system 110 processes the thickness information in real time to identify the thickness abnormal area of the diaphragm 500. At the same time, the distance measurement mechanism 200 arranged between the scanner and the inkjet coding mechanism 300 obtains the moving distance information of the diaphragm 500 and transmits the moving distance information to the control system 110. Since the control system 110 identifies the thickness abnormal area of the diaphragm 500, when the moving distance of the diaphragm 500 is equal to the distance between the scanner and the inkjet coding mechanism 300, it indicates that the thickness abnormal area of the diaphragm 500 moves to the position of the inkjet coding mechanism 300. At this time, the control system 110 controls the inkjet coding mechanism 300 to inkjet code the thickness abnormal area of the diaphragm 500, thereby marking the thickness abnormal area of the diaphragm 500. During use, only the marked abnormal diaphragm 500 can be scrapped, while the remaining diaphragm 500 can still be used normally, saving costs.

[0043] Exemplarily, the control system 110 is a thickness gauge PLC (Programmable Logic Controller) system, which has high-speed pulse input and output terminals. The high-speed pulse input terminal is electrically connected to the distance measuring mechanism 200 and receives the thickness information from the distance measuring mechanism 200. The output terminal is electrically connected to the inkjet coding mechanism 300 and outputs an execution coding signal to the inkjet coding mechanism 300.

[0044] Furthermore, the diaphragm thickness measuring and inkjet coding device further includes an alarm, and the alarm is electrically connected to the control system 110.

[0045] During use, if the inkjet coding mechanism 300 executes frequently, a data table of alarm meters can also be added to the control system 110. At the same time, the control system 110 controls the alarm to give an alarm to notify the operator to adjust the parameters of the production equipment of the diaphragm 500 in time.

[0046] Please refer to Figure 3 , in some embodiments, the distance measuring mechanism 200 includes a second bracket 210, an encoder 220, and a length measuring wheel 230.

[0047] Among them, the second bracket 210 is located between the scanner and the inkjet coding mechanism 300. The encoder 220 is arranged on the second bracket 210. The encoder 220 is electrically connected to the high-speed pulse input terminal of the control system 110, and the encoder 220 has a rotating shaft connecting the length measuring wheel 230. During use, the length measuring wheel 230 is used to abut against the diaphragm 500.

[0048] During the continuous conveying process of the diaphragm 500, the length measuring wheel 230 rotates with the diaphragm 500. At the same time, the encoder 220 measures the number of turns of the length measuring wheel 230, obtains the moving distance information of the diaphragm 500 through corresponding conversion operations, and then transmits the moving distance information to the control system 110.

[0049] Exemplarily, the encoder 220 is fixed on a passive roller 600 at the rear end of the scanner through the second bracket 210, and the length measuring wheel 230 abuts the diaphragm 500 against the passive roller 600. The encoder 220 with a selected resolution of 100 p / r pulses is connected to the high-speed pulse input terminal of the control system 110: the power supply of the encoder 220 is 24v. Connect BROWN and blue to 24v+ and 0v respectively. The signals A (black) and B (white) of the encoder 220 are respectively connected to the high-speed pulse input terminals I0.0 and I0.1, and the common terminal M of the control system 110 is connected to 24v+.

[0050] The operation steps are as follows: Open the TIA Portal programming software and enter the device configuration → Double-click on the CPU to enter → the property interface → Click on the high-speed counter → Check the box to enable the high-speed counter → Click on the function → Modify the operating mode to A / B counter → Click on the digital quantity channel → Set the input filter to 6.4 us → Download the hardware configuration to the control system 110.

[0051] Furthermore, the ranging mechanism 200 further includes a hinge fixing angle code 240 and a fixing plate 250.

[0052] Among them, the hinge fixing angle code 240 is connected to the second bracket 210. An adjustment slot 251 is provided on the fixing plate 250, and a fastener 252 is passed through the adjustment slot 251. The fixing plate 250 is connected to the hinge fixing angle code 240 through the fastener 252. In addition, the encoder 220 is provided on the fixing plate 250.

[0053] The operator removes the fastener 252, and then can adjust the position of the fixing plate 250 relative to the hinge fixing angle code 240 along the extension direction of the adjustment slot 251, and further adjust the positions of the encoder 220 and the meter wheel 230, so that the meter wheel 230 presses the diaphragm 500 against the passive roller 600 with an appropriate pressure. After the adjustment is completed, the operator installs the fastener 252 again.

[0054] Exemplarily, the fastener 252 is a fixing screw. The rod portion of the fixing screw passes through the adjustment slot 251 and is in threaded cooperation with the hinge fixing angle code 240. The head of the fixing screw presses tightly on the fixing plate 250, thereby fixing the fixing plate 250 on the hinge fixing angle code 240.

[0055] Please refer to again Figure 2 , in some embodiments, the inkjet coding mechanism 300 is composed of a laser marking head 310, a flexible connecting pipe 320 and a laser marking machine 330. The laser marking head 310 is connected to the laser marking machine 330 through the flexible connecting pipe 320, and the laser marking machine 330 is electrically connected to the output end of the control system 110.

[0056] In addition, the ranging mechanism 200 is located between the scanner and the laser marking head 310.

[0057] Specifically, a six-category shielded network cable is connected from the output end of the control system 110 to the switch of the laser marking machine 330, and a network cable is also connected from the PLC end of the laser marking machine 330 to the switch, so as to realize the electrical connection between the control system 110 and the laser marking machine 330.

[0058] During use, the control system 110 generates a film surface anomaly curve based on the thickness information, thereby obtaining the position of the thickness anomaly area of the separator 500 in the width direction of the separator 500. On this basis, the laser coding head 310 codes the separator 500, and can more accurately mark the thickness anomaly area of the separator 500, further saving costs.

[0059] Exemplarily, the laser coding machine 330 uses an ultraviolet laser coding machine, and its working principle is to achieve coding through photochemical ablation. Specifically, relying on the high energy of the laser, physical or chemical reactions occur on the surface of the object, and then marks are formed.

[0060] Furthermore, the above-mentioned separator thickness measurement and coding device further includes a transverse movement mechanism 400, and the transverse movement mechanism 400 is used to drive the laser coding head 310 to move along the width direction of the separator 500.

[0061] Specifically, the transverse movement mechanism 400 is electrically connected to the control system 110, and the laser coding head 310 is arranged on the mobile end of the transverse movement mechanism 400. During use, the control system 110 controls the transverse movement mechanism 400, so that the mobile end of the transverse movement mechanism 400 drives the laser coding head 310 to move along the width direction of the separator 500 until the laser coding head 310 is aligned with the thickness anomaly area of the separator 500, so as to enable the laser coding head 310 to code the separator 500.

[0062] In some embodiments, the transverse movement mechanism 400 includes a first bracket 410, a lead screw 420, a drive motor 430, and a lead screw bearing 440.

[0063] Among them, the lead screw 420 is rotatably arranged on the first bracket 410, the lead screw 420 is arranged along the width direction of the separator 500, and the drive end of the drive motor 430 is connected to the lead screw 420. The lead screw bearing 440 is sleeved on the lead screw 420, and the lead screw bearing 440 is connected to the laser coding head 310.

[0064] Exemplarily, the first bracket 410 adopts a gantry, the drive motor 430 adopts a servo motor, and the drive motor 430 is arranged on the first bracket 410. In addition, the control system 110 includes a servo drive module, and the servo drive module is electrically connected to the drive motor 430.

[0065] During use, the servo drive module outputs a signal to the drive motor 430 to control the operation of the drive motor 430. The drive motor 430 drives the lead screw 420 to rotate, while the lead screw bearing 440 does not rotate, thereby driving the lead screw bearing 440 to move along the length direction of the lead screw 420, and further driving the laser coding head 310 to move until the laser coding head 310 is aligned with the thickness anomaly area of the separator 500.

[0066] Optionally, the transverse movement mechanism 400 further includes a fixing frame 450. The fixing frame 450 is vertically arranged, the top end of the fixing frame 450 is connected to the lead screw bearing 440, and the laser marking head 310 is arranged on the fixing frame 450.

[0067] In use, the lead screw bearing 440 drives the laser marking head 310 to move through the fixing frame 450. Further, the transverse movement mechanism 400 further includes a guide rail 460 and a plurality of gripping members 470. The guide rail 460 and the gripping members 470 cooperate to make the flexible connecting pipe 320 move along the width direction of the diaphragm 500 with the laser marking head 310, so that the flexible connecting pipe 320 is kept in a suspended state, avoiding the flexible connecting pipe 320 from being wound around structures such as the lead screw 420.

[0068] Specifically, the guide rail 460 is arranged parallel to the lead screw 420, and a plurality of gripping members 470 are arranged along the length direction of the guide rail 460.

[0069] In some embodiments, the guide rail 460 is arranged on the first bracket 410. The gripping member 470 includes a sliding portion 471 and a gripping portion 472 which are connected to each other, and the sliding portion 471 is slidably arranged on the guide rail 460, and the gripping portion 472 grips the flexible connecting pipe 320.

[0070] During the movement of the laser marking head 310, the flexible connecting pipe 320 moves with the laser marking head 310. The gripping portion 472 always grips the flexible connecting pipe 320 to keep the flexible connecting pipe 320 in a suspended state, and the sliding portion 471 slides on the guide rail 460 with the flexible connecting pipe 320.

[0071] Optionally, the gripping member 470 further includes an elastic connecting portion 473, and the sliding portion 471 is connected to the gripping portion 472 through the elastic connecting portion 473.

[0072] Since the gripping portion 472 is elastically connected to the sliding portion 471 through the elastic connecting portion 473, the flexible connecting pipe 320 can move relative to the sliding portion 471 within a small range. Even if the sliding portion 471 gets stuck on the guide rail 460, the flexible connecting pipe 320 can still move with the laser marking head 310.

[0073] Exemplarily, the elastic connecting portion 473 is made of a rubber band.

[0074] In some embodiments, the second bracket 210 is fixed to the first bracket 410 through a wall panel.

[0075] In other embodiments, the second bracket 210 can also be fixed separately, as long as it is ensured that the distance measuring mechanism 200 is located between the scanner and the laser marking head 310.

[0076] In summary, when using the above-mentioned diaphragm thickness measurement and inkjet coding device to detect the diaphragm 500, first set the base film thickness or the thickness data for monitoring the coated finished film range on the control system 110. For example, the thickness of the base film is 16 μm, and the abnormal thickness range is set to ±1 μm, which can be adjusted according to actual needs.

[0077] Subsequently, the scanner acquires the thickness information of the diaphragm 500 and transmits the thickness information to the control system 110.

[0078] On this basis, the control system 110 generates a film surface abnormal curve according to the thickness information, so as to know the position of the thickness abnormal area of the diaphragm 500 in the width direction of the diaphragm 500. At the same time, the ranging mechanism 200 acquires the moving distance information of the diaphragm 500 and transmits the moving distance information to the control system 110.

[0079] Finally, the control system 110 controls the operation of the drive motor 430 according to the position of the thickness abnormal area of the diaphragm 500 in the width direction of the diaphragm 500, and then drives the laser coding head 310 to move along the width direction of the diaphragm 500 until the laser coding head 310 is aligned with the thickness abnormal area of the diaphragm 500. In addition, the control system 110 judges whether the thickness abnormal area of the diaphragm 500 reaches the position of the laser coding head 310 according to the moving distance information, and controls the laser coder 330 when the thickness abnormal area of the diaphragm 500 arrives. The laser emitted by the laser coding head 310 codes the thickness abnormal area of the diaphragm 500, so as to mark the thickness abnormal area of the diaphragm 500. When in use, only the marked abnormal diaphragm 500 can be scrapped, while the remaining diaphragm 500 can still be used normally, saving costs.

[0080] This embodiment also provides a detection device, including an optical imaging device and the above-mentioned diaphragm thickness measurement and inkjet coding device.

[0081] Among them, the optical imaging device can be a CCD camera, which can photograph and judge abnormalities such as tearing, crystal points, foreign objects, and pinholes on the diaphragm 500, and detect the quality of the diaphragm 500.

[0082] In all the examples shown and described here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0083] It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0084] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A diaphragm thickness measurement and coding device, characterized in that: include: A thickness measuring mechanism, comprising a scanner and a control system, wherein the scanner is electrically connected to the control system, and the scanner is used to obtain thickness information of the diaphragm and transmit the thickness information to the control system; A distance measuring mechanism, electrically connected to the control system, the distance measuring mechanism is used to obtain the movement distance information of the diaphragm and transmit the movement distance information to the control system; as well as A coding mechanism, electrically connected to the control system; Wherein, the distance measuring mechanism is located between the scanner and the coding mechanism, and the control system controls the coding mechanism to code the abnormal thickness area of ​​the diaphragm according to the thickness information and the moving distance information.

2. The diaphragm thickness measurement and coding device according to claim 1 is characterized in that: The coding mechanism comprises a laser marking terminal, a flexible connecting pipe and a laser coding machine, wherein the laser marking terminal is connected to the laser coding machine through the flexible connecting pipe, and the laser coding machine is electrically connected to the control system; The distance measuring mechanism is located between the scanner and the laser marking platform.

3. The diaphragm thickness measurement and coding device according to claim 2 is characterized in that: The membrane thickness measurement and coding device further comprises a transverse movement mechanism, and the transverse movement mechanism is used to drive the laser marking terminal to move along the width direction of the membrane.

4. The diaphragm thickness measurement and coding device according to claim 3 is characterized in that: The transverse movement mechanism includes a first bracket, a screw, a drive motor and a screw bearing. The screw is rotatably arranged on the first bracket, the driving end of the drive motor is connected to the screw, the screw bearing is sleeved on the screw, and the screw bearing is connected to the laser punching terminal.

5. The diaphragm thickness measurement and coding device according to claim 4 is characterized in that: The transverse movement mechanism further comprises a guide rail and a plurality of gripping members, wherein the guide rail and the gripping members cooperate to move the flexible connecting tube along the width direction of the diaphragm.

6. The diaphragm thickness measurement and coding device according to claim 5, characterized in that: The guide rail is arranged on the first bracket, and the gripping member comprises a sliding part and a gripping part which are connected to each other. The sliding part is slidably arranged on the guide rail, and the gripping part grips the flexible connecting tube.

7. The diaphragm thickness measurement and coding device according to claim 1 is characterized in that: The distance measuring mechanism includes a second bracket, an encoder and a meter wheel. The encoder is arranged on the second bracket. The encoder is electrically connected to the control system. The encoder has a rotating shaft connected to the meter wheel. The meter wheel is used to abut the diaphragm.

8. The diaphragm thickness measurement and coding device according to claim 7, characterized in that: The distance measuring mechanism also includes a hinge fixing angle code and a fixing plate, the hinge fixing angle code is connected to the second bracket, an adjustment groove is arranged on the fixing plate, a fastener is passed through the adjustment groove, the fixing plate is connected to the hinge fixing angle code via the fastener, and the encoder is arranged on the fixing plate.

9. The diaphragm thickness measurement and coding device according to any one of claims 1 to 8, characterized in that: The diaphragm thickness measurement and coding device also includes an alarm, and the alarm is electrically connected to the control system.

10. A detection device, characterized in that: The invention comprises the diaphragm thickness measuring and coding device according to any one of claims 1 to 9.

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