Film tearing-free film sticking testing device

Abstract

The invention relates to the technical field of film tearing-free film pasting testing devices, and provides a film tearing-free film pasting testing device which is suitable for a small-batch trial production or mass production stage. Comprising a device frame, a ceiling mechanism used for bearing an MIC pressing function, a carrier plate mechanism used for bearing a sound leakage, open circuit and short circuit test unit, and a test control system used for counting test data and controlling operation of each electric control device. The carrier plate mechanism comprises a needle mold assembly and an MIC sealing assembly used for sealing an MIC. The MIC sealing assembly comprises an assembly mounting plate, an SEAL rubber head, an SEAL material belt mounted on the assembly mounting plate, a belt winding structure used for winding away the SEAL material belt and a jacking air cylinder used for driving the SEAL rubber head to jack the SEAL film. The SEAL material belt comprises a material rolling disc and an SEAL film, the belt rolling structure comprises a belt rolling driver and a belt collecting disc, and the SEAL film bypasses the top of the SEAL rubber head and is wound on the belt collecting disc.

Description

Technical Field

[0001] The present invention relates to the technical field of a non-tear film laminating test device, and specifically, to a non-tear film laminating test device. Background Art

[0002] Flexible printed circuit boards (FPCs) are widely used in 5G communications, computers, mobile phones, wearable electronic devices, etc. due to their light weight, thinness, high reliability, and flexible design features. They can be freely bent, wound, and folded, and a large number of precision components can be stacked and embedded in a narrow space.

[0003] Currently, during the small-batch trial production or mass production stage of flexible printed circuit boards with MICs, it is usually required that their test equipment meet the characteristics of low price, diverse fixture functions, simplified processes, easy operation, and high efficiency. However, the existing flexible flexible board test equipment mainly includes the following types: 1. Automated whole-line testing: It can meet the multi-process functions and test requirements of FPCs, with high efficiency, but the cost is high, and it cannot meet small-batch production. 2. Single-function fixture testing: It can meet the single-process functions and test needs of FPCs, is simple and effective, has a low cost, and is suitable for small-batch production. However, its functions are single, and multiple fixture machines need to be used in cooperation.

[0004] Neither can meet the requirements of the small-batch trial production or mass production stage. Summary of the Invention

[0005] The present invention provides a non-tear film laminating test device, which is applicable to the small-batch trial production or mass production stage.

[0006] The technical solution of the present invention is as follows: A non-tear film laminating test device includes a device frame, a top plate mechanism for carrying the function of pressing MIC, a carrier plate mechanism for carrying at least two test units, and a test control system for counting test data and controlling the operation of each electronic control device. The carrier plate mechanism includes a needle die assembly and a MIC sealing assembly for sealing MIC.

[0007] Further, the MIC sealing assembly includes a component mounting plate, a SEAL rubber head, a SEAL tape installed on the component mounting plate, a tape winding structure for winding the SEAL tape, and a rubber head lifting cylinder for driving the SEAL rubber head to lift the SEAL film. The SEAL tape includes a winding reel and a SEAL film. The tape winding structure includes a tape winding driver and a tape take-up reel. The SEAL film bypasses the top of the SEAL rubber head and is wound around the tape take-up reel.

[0008] Further, the sealing MIC component includes a first pressure sensor for collecting the jacking pressure data of the SEAL glue head and protecting the product under test, and a photoelectric sensor for detecting the working state of the SEAL tape; Both the first pressure sensor and the photoelectric sensor are electrically connected to the test control system.

[0009] Further, the sealing MIC component includes a limit seat between the first pressure sensor and the SEAL glue head, a jacking column passing through the limit seat, and an elastic member. The elastic member abuts against the jacking column and the first pressure sensor respectively, and the SEAL glue head is located at one end of the jacking column away from the elastic member; It includes a jacking seat. The driving shaft of the glue head jacking cylinder is linked with the jacking seat, and the first pressure sensor is installed on the jacking seat.

[0010] Further, the carrier plate mechanism includes a carrier plate frame, a carrier plate bottom plate, a carrier plate cushion plate, a cover plate for preventing pressing damage and improving test stability, and a cover plate punching structure. The carrier plate bottom plate and the carrier plate cushion plate are connected by movable copper sleeves and fasteners; The needle die assembly includes a needle die and a guide pin for positioning in cooperation with the top plate mechanism.

[0011] Further, the cover plate punching structure includes a bearing plate bracket, a first jacking cylinder installed on the bearing plate bracket, and a jacking rod for jacking up the cover plate; The output shaft of the first jacking cylinder is fixedly connected to the jacking rod.

[0012] Further, the top plate mechanism includes a top plate frame, a pressure MIC component, a pressure block probe component and a horn component; The top plate frame includes a top plate bottom plate and a top plate top plate, and the top plate bottom plate and the top plate top plate are fixedly connected by support columns.

[0013] A guide shaft is provided on one side of the top plate bottom plate facing the carrier plate mechanism, and a guide hole for embedding the guide shaft is provided on the carrier plate cushion plate; A limit block for abutting against the carrier plate cushion plate is provided on one side of the top plate bottom plate facing the carrier plate mechanism; The pressure block probe component is electrically connected to the test control system.

[0014] Further, the pressure MIC component includes a pressure head, a guide block, a guide rod, a second pressure sensor and a downward pressure cylinder for driving the pressure head to press down; The guide rod passes through the guide block and is fixedly connected to the pressure head. The downward pressure cylinder is fixedly connected to the guide rod or the guide block, and the driving shaft of the downward pressure cylinder is fixedly connected to the top plate bottom plate; An elastic member is provided between the guide rod and the second pressure sensor; The second pressure sensor is electrically connected to the test control system.

[0015] Furthermore, the horn assembly includes a sound source box and a test horn installed in the sound source box. A sound source tube for transmitting sound waves is provided in the sound source box. A sound nozzle for covering the product under test is provided on one side of the sound source box facing the carrier plate mechanism. One end of the sound source tube faces the test horn, and the other end of the sound source tube is communicated with the sound nozzle; The test horn is electrically connected to the test control system.

[0016] The beneficial effects of the present invention are as follows: Through technical improvement, the present invention uses at least two test units such as sound leakage, open circuit and short circuit in the sealing MIC component and the top plate mechanism to complete multiple detection tasks without tearing or pasting the film. The number of original five single-process jigs is reduced to two test-process jigs, which reduces labor costs, saves a lot of time, simplifies the process, and prevents product damage caused by film tearing.

[0017] The present invention changes the situation that in the past, for small-batch product (with MIC) trial production and proofing projects, corresponding functions such as film tearing, sensitivity testing, film pasting, sealing testing, open circuit and short circuit testing are required until the product testing project is completed, and at least five single-process jigs are required to meet the conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the top plate mechanism; Figure 3 is a schematic structural diagram of the carrier plate mechanism; Figure 4 is a schematic structural diagram of the sealing MIC component; Figure 5 is a schematic structural diagram of the pressing MIC component; Figure 6 is a schematic structural diagram of the cover plate assembly; Figure 7 is a partially enlarged view of the sealing MIC component; Figure 8 is a partially enlarged view of the cover plate.

[0020] In the figure: 1. Device frame; 2. Top plate mechanism; 211. Top plate bottom plate; 2111. Guide shaft; 2112. Limit block; 212. Top plate top plate; 22. Press MIC assembly; 221. Press head; 222. Guide block; 223. Guide rod; 224. Second pressure sensor; 225. Downward pressing cylinder; 23. Press block probe assembly; 24. Speaker assembly; 241. Sound source box; 242. Test speaker; 3. Carrier plate mechanism; 31. Seal MIC assembly; 311. Assembly mounting plate; 312. SEAL rubber head; 3131. SEAL film; 3132. Coiling reel; 3141. Tape driving device; 3142. Tape take-up reel; 315. Rubber head lifting cylinder; 316. First pressure sensor; 317. Photoelectric sensor; 3181. Limit seat; 3182. Lifting column; 3183. Elastic member; 3184. Lifting seat; 32. Carrier plate frame; 33. Carrier plate bottom plate; 34. Carrier plate spacer; 35. Cover plate; 361. Support bracket for bearing plate; 362. First lifting cylinder; 363. Lifting rod; 37. Needle die assembly; 371. Guide pin; 4. Test control system. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0022] Example 1: As Figures 1 - 5 shown in FIGS. 6 and 7, a film sticking test device without tearing the film is mainly used to detect MIC components with flexible printed circuit boards and covered with breathable MIC films. The general structure includes several major parts such as a top plate mechanism 2, a carrier plate mechanism 3, a test control system 4, and a device frame 1 for carrying each mechanism. The top plate mechanism 2 is used to carry tasks such as corresponding test units for sound leakage, open circuit and short circuit, sensitivity, and the function of pressing the MIC; the carrier plate assembly mechanism is mainly used to carry the top plate mechanism 2, as well as corresponding test units such as sound leakage, open circuit and short circuit, sensitivity, and the function of sealing the MIC; the test control system 4 includes a control center for statistically testing data and controlling the movement of the whole machine. In addition, the whole machine equipment also includes a display screen for easily obtaining test data information, identifying test results, and being used for tracking information connection; control buttons for debugging and control; and a safety light curtain for protecting the safety of workers, which will not be elaborated in this embodiment.

[0023] Among them, the carrier board mechanism 3 includes a needle die assembly 37 and a MIC sealing assembly 31 for sealing the MIC. The needle die assembly 37 has a positioning function and is used to place the MIC components to be tested. The MIC sealing assembly 31 ensures the accuracy of the MIC components during testing.

[0024] Specifically, the MIC sealing assembly 31 in this embodiment includes a component mounting plate 311, a SEAL rubber head 312, a SEAL tape mounted on the component mounting plate 311, a tape winding structure for winding the SEAL tape, and a rubber head lifting cylinder 315 for driving the SEAL rubber head 312 to lift the SEAL film 3131. The SEAL rubber head 312 cooperates with the SEAL tape to seal around the MIC flexible circuit board of the product to be tested. The rubber head lifting cylinder 315 is responsible for driving the SEAL rubber head 312 to lift.

[0025] The SEAL tape includes a winding reel 3132 and a SEAL film 3131. The tape winding structure includes a tape winding driver 3141 and a tape take-up reel 3142. The SEAL film 3131 bypasses the top of the SEAL rubber head 312 and is wound around the tape take-up reel 3142. The tape winding driver 3141 is preferably a stepping motor, which has high precision, long service life, and good controllability, and is used to provide driving force to drive the tape take-up reel 3142 to wind the SEAL tape.

[0026] At the same time, the MIC sealing assembly 31 in this embodiment is also provided with a first pressure sensor 316 and a photoelectric sensor 317 for detecting the working state of the SEAL tape. The photoelectric sensor 317 is mounted on the component mounting plate 311 and aligned with the SEAL film 3131. A limit seat 3181 is provided between the first pressure sensor 316 and the SEAL rubber head 312. It also includes a lifting column 3182 and an elastic member 3183 passing through the limit seat 3181. The limit seat 3181 ensures that the lifting column 3182 and the SEAL rubber head 312 do not deviate during lifting, improving the reliability of the MIC sealing assembly 31. The elastic member 3183 abuts against the lifting column 3182 and the first pressure sensor 316 respectively (a hole can be opened at the bottom of the lifting column 3182 to accommodate and fix one end of the elastic member 3183, improving stability). The SEAL rubber head 312 is located at the end of the lifting column 3182 away from the elastic member 3183, and is fixedly connected and linked with the lifting column 3182. The driving shaft of the rubber head lifting cylinder 315 is linked with the lifting seat 3184 (a guide rail can be added between the lifting seat 3184 and the component mounting plate 311 to provide the stability and accuracy of operation), and then the first pressure sensor 316 is mounted on the lifting seat 3184. When the lifting cylinder drives the SEAL rubber head 312 to lift and lower, the elastic member 3183 (preferably a spring) is compressed, and the first pressure sensor 316 receives the pressure signal, so that it can collect the lifting pressure data of the SEAL rubber head 312 and protect the product. When the SEAL rubber head 312 reaches the set pressure, the lifting stops.

[0027] In this embodiment, the carrier board mechanism 3 mainly includes a carrier board frame 32, a carrier board bottom plate 33 and a carrier board cushion plate 34. The carrier board bottom plate 33 and the carrier board cushion plate 34 are connected by movable copper sleeves and bolts. The needle die assembly 37 serves as the positioning reference for the product and includes a needle die and a guide pin 371 for cooperating with the top plate mechanism 2 for positioning.

[0028] In this embodiment, the top plate mechanism 2 mainly includes a top plate frame, a pressure MIC assembly 22, a pressure block probe assembly 23 and a speaker assembly 24. The speaker assembly 24 serves as the sound leakage test unit in this embodiment.

[0029] The top plate frame includes a top plate bottom plate 211 and a top plate top plate 212. The top plate bottom plate 211 and the top plate top plate 212 are fixedly connected by support columns to form an integral frame.

[0030] A guide shaft 2111 is provided on one side of the top plate bottom plate 211 facing the carrier board mechanism 3. A guide hole for the guide shaft 2111 to be embedded is provided on the carrier board cushion plate 34. A guiding fit is formed between the guide shaft 2111 and the carrier board mechanism 3 to provide conditions for the stability test.

[0031] A limit block 2112 for abutting against the carrier board cushion plate 34 is provided on one side of the top plate bottom plate 211 facing the carrier board mechanism 3, which is used to ensure the fixed state after the top plate mechanism 2 and the carrier board mechanism 3 move and press together, that is, by abutting the limit block 2112 against the surface of the carrier board mechanism 3 as a reference for the contact spacing of the test unit during the test.

[0032] The pressure MIC assembly 22 is used to press some components of the product MIC, and specifically includes a pressure head 221, a guide block 222, a guide rod 223, a second pressure sensor 224 and a downward pressure cylinder 225 for driving the pressure head 221 to press down. The pressure head 221 is used to press down and fit the tested product MIC, and the guide block 222 is used to guide the downward pressure of the guide rod 223. Among them, the guide rod 223 passes through the guide block 222 and is fixedly connected to the pressure head 221. The cylinder body of the downward pressure cylinder 225 is fixedly connected to the guide rod 223 or the guide block 222, and the driving shaft of the downward pressure cylinder 225 is fixedly connected to the top plate bottom plate 211. In this embodiment, it is preferably to fixedly connect the driving shaft of the downward pressure cylinder 225 to the second pressure sensor 224 (or the mounting seat for mounting the second pressure sensor 224). Then an elastic member 3183 is arranged between the guide rod 223 and the second pressure sensor 224, so that when the pressure head 221 presses down, the elastic member 3183 is compressed through the guide rod 223, and the second pressure sensor 224 receives a pressure signal, thereby collecting the downward pressure test pressure data and stopping in time to protect the tested product after reaching the set pressure. The end face of the guide rod 223 can also be opened to accommodate and fix one end of the elastic member 3183 at this place to improve stability.

[0033] The above speaker assembly 24 is used to test the sound emitted by the product MIC for airtightness. Specifically, it includes a sound source box 241 and a test speaker 242 installed in the sound source box 241. The sound source box 241 is used to install the test speaker 242.

[0034] In addition, the top plate mechanism 2 is also provided with a pressure block probe assembly 23 as an open / short circuit test unit. When the probe presses down, it is electrically connected to the circuit of the product under test, so as to test the circuit functions such as open / short circuit of important components of the product.

[0035] In this embodiment, the first pressure sensor 316, the photoelectric sensor 317, the pressure block probe assembly 23, the second pressure sensor 224, the pressure block probe assembly 23, and the test speaker 242 are all electrically connected to the test control system 4.

[0036] In this embodiment, the MIC sealing component 31 and the MIC pressing component 22 play important roles.

[0037] Based on this embodiment, a sound-permeable breathable MIC film is customized under the product MIC. On the sensitivity single-process machine platform, by replacing the compatible MIC pressing component 22, the sensitivity test can be realized. When an operator manually places the product into the needle die assembly 37 of the carrier mechanism 3 for positioning, the top plate mechanism 2 presses down on the carrier mechanism 3 and reaches the hard limit. The MIC pressing component 22 starts to work, and the pressing head 221 presses down to the product MIC, making the MIC hole of the product under test concentrically fit with the sound outlet hole of the sound source box 241. The sound source box 241 emits sound from the bottom sound source tube to the MIC hole to test the sensitivity of the product. After the test is completed, the top plate is lifted, and the operator takes the material and places it in the tray, and repeats the next step. In this way, in the sensitivity test, using this MIC pressing component 22 for compatible testing can meet the overall functional requirements and eliminate the original film tearing process.

[0038] During the sound leakage and open / short circuit tests, the sealing MIC component 31 is mainly responsible for the sealing of the product's MIC and the recycling of the SEAL tape, ensuring the smooth passing of the sound leakage and open / short circuit tests. In the product testing process, the sound leakage test and the open / short circuit test are combined into a compatible test. When manually placing the product under test into the pin mold component 37 of the carrier plate mechanism 3 for positioning, the top plate mechanism 2 presses down on the carrier plate mechanism 3 until it reaches the hard limit, and the pressing MIC component 22 starts to work. The pressing head 221 presses down to the product's MIC and the breathable membrane, and the bottom sealing MIC component 31 starts to work. The SEAL rubber head 312 presses up and seals the SEAL tape. The speaker emits sound around the product's MIC for the sound leakage test. The pressing block probe component 23 conducts the open / short circuit test on the important product steel sheet. After the test is completed, the sealing MIC component 31 retracts through the actuator, and the tape winding actuator 3141 drives the tape take-up reel 3142 to wind up a part of the film tape for recycling. The pressing MIC component 22 lifts up after the bottom film tape is completely retracted (to prevent the breathable MIC membrane from being pulled away by the bottom SEAL tape), and then the operator takes the product and places it in the tray, repeating the next step. In this way, in the sealing test and the open / short circuit test, the SEAL tape is pressed up by the rubber head in the sealing MIC component 31 for the sealing test, which can meet the overall functional requirements and cancel the original film pasting process.

[0039] Currently, the results of this embodiment have been verified well at the customer site. For subsequent small-batch trial production sample projects and mass production projects, specific solutions will be introduced according to the corresponding requirements of the customers.

[0040] Example 2: As Figure 6 、 8 shown, on the basis of Embodiment 1, the carrier plate mechanism 3 in this embodiment further includes a cover plate 35 and a cover plate opening / closing structure. The cover plate 35 opens when the product under test is placed and then automatically covers the upper part of some structures of the product under test to protect the product under test, prevent it from being bruised and improve the test stability. Therefore, the cover plate 35 is located at the pin mold component 37 and is hinged to one side of the pin mold component 37 by using a torsion spring in cooperation with a rotating shaft, and it is automatically reset under the action of the torsion spring, with a compact and efficient structure.

[0041] The cover plate opening / closing structure is located on the side of the carrier plate bottom plate 33 facing away from the carrier plate backing plate 34 and is used to open the cover plate 35 when taking and placing the product under test. It includes a bearing plate bracket 361, a first lifting cylinder 362 installed on the bearing plate bracket 361, and a lifting rod 363 used to lift the cover plate 35. The lifting rod 363 is used to lift the cover plate 35 under the drive of the first lifting cylinder 362. Therefore, the output shaft of the first lifting cylinder 362 is fixedly connected to the lifting rod 363. The lifting rod 363 can pass through the carrier plate bottom plate 33 and the carrier plate backing plate 34 to lift the cover plate 35, causing the cover plate 35 to flip open. The bearing plate bracket 361 can be fixedly connected to the carrier plate bottom plate 33.

[0042] To avoid damaging the cover plate 35, in this embodiment, a pulley is provided at the top of the jacking rod 363 to abut against the cover plate 35, reducing the impact and wear on the cover plate and improving the service life of the cover plate 35.

[0043] Example 3: As Figure 2 shown, on the basis of the above embodiments, in this embodiment, a sound source tube for transmitting sound waves is provided inside the sound source box 241. A sound nozzle (i.e., the sound outlet hole of the sound source box 241) for covering the product under test is provided on one side of the sound source box 241 facing the carrier mechanism 3. One end of the sound source tube faces the test speaker 242, and the other end of the sound source tube is communicated with the sound nozzle, enabling the sound waves emitted by the test speaker 242 to smoothly pass through the sound source tube and the sound nozzle to reach the MIC of the product under test, while avoiding sound leakage.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tear-free film test device, comprising a device frame (1), characterized in that: It comprises a top plate mechanism (2) for carrying a MIC pressure function, a carrier plate mechanism (3) for at least two test units, and a test control system (4) for collecting test data and controlling the operation of each electronic control device; The carrier mechanism (3) comprises a needle mold component (37) and a MIC sealing component (31) for sealing the MIC.

2. The tear-free film sticking test device according to claim 1, characterized in that: The MIC sealing component (31) comprises a component mounting plate (311), a SEAL rubber head (312), a SEAL material tape mounted on the component mounting plate (311), a tape reel structure for reeling off the SEAL material tape, and a rubber head lifting cylinder (315) for driving the SEAL rubber head (312) to lift the SEAL film (3131); The SEAL material tape comprises a winding reel (3132) and a SEAL film (3131), and the winding structure comprises a winding drive (3141) and a take-up reel (3142). The SEAL film (3131) passes around the top of the SEAL rubber head (312) and is wound on the take-up reel (3142).

3. The tear-free film sticking test device according to claim 2, characterized in that: The sealing MIC component (31) comprises a first pressure sensor (316) for collecting the lifting pressure data of the SEAL rubber head (312) and protecting the product under test, and a photoelectric sensor (317) for detecting the working state of the SEAL material belt; The first pressure sensor (316) and the photoelectric sensor (317) are both electrically connected to the test control system (4).

4. The tear-free film sticking test device according to claim 3, characterized in that: The sealing MIC component (31) comprises a limit seat (3181) located between the first pressure sensor (316) and the SEAL rubber head (312), a lifting column (3182) and an elastic member (3183) passing through the limit seat (3181), wherein the elastic member (3183) abuts against the lifting column (3182) and the first pressure sensor (316), respectively, and the SEAL rubber head (312) is located at one end of the lifting column (3182) away from the elastic member (3183); It comprises a lifting seat (3184), the driving shaft of the rubber head lifting cylinder (315) is linked to the lifting seat (3184), and the first pressure sensor (316) is installed on the lifting seat (3184).

5. The tear-free film sticking test device according to claim 1, 2, 3 or 4, characterized in that: The carrier mechanism (3) comprises a carrier frame (32), a carrier bottom plate (33), a carrier pad (34), a cover plate (35) for preventing crushing and improving test stability, and a cover plate structure, wherein the carrier bottom plate (33) and the carrier pad (34) are connected to a fastener via a movable copper sleeve; The needle mold assembly (37) comprises a needle mold and a guide pin (371) for cooperating with the top plate mechanism (2) for positioning.

6. The tear-free film sticking test device according to claim 5, characterized in that: The cover plate structure comprises a support plate bracket (361), a first lifting cylinder (362) installed on the support plate bracket (361), and a lifting rod (363) used for lifting the cover plate (35); The output shaft of the first lifting cylinder (362) is fixedly connected to the lifting rod (363).

7. The tear-free film sticking test device according to claim 5, characterized in that: The top plate mechanism (2) comprises a top plate frame, a MIC pressure assembly (22), a pressure block probe assembly (23) and a speaker assembly (24); The ceiling frame comprises a ceiling bottom plate (211) and a ceiling top plate (212), wherein the ceiling bottom plate (211) and the ceiling top plate (212) are fixedly connected via support columns; A guide shaft (2111) is provided on the side of the top plate bottom plate (211) facing the plate carrier mechanism (3), and a guide hole for embedding the guide shaft (2111) is provided on the plate carrier pad (34); A limit block (2112) for abutting against a carrier pad (34) is provided on the side of the top plate bottom plate (211) facing the carrier mechanism (3); The pressing block probe assembly (23) is electrically connected to the test control system (4).

8. The tear-free film sticking test device according to claim 7, characterized in that: The pressure MIC assembly (22) comprises a pressure head (221), a guide block (222), a guide rod (223), a second pressure sensor (224), and a downward pressure cylinder (225) for driving the pressure head (221) to press downward; The guide rod (223) passes through the guide block (222) and is fixedly connected to the pressure head (221); the downward pressure cylinder (225) is fixedly connected to the guide rod (223) or the guide block (222); and the driving shaft of the downward pressure cylinder (225) is fixedly connected to the top plate and bottom plate (211); An elastic member (3183) is provided between the guide rod (223) and the second pressure sensor (224); The second pressure sensor (224) is electrically connected to the test control system (4).

9. The tear-free film sticking test device according to claim 7, characterized in that: The speaker assembly (24) comprises a sound source box (241) and a test speaker (242) installed in the sound source box (241); a sound source tube for transmitting sound waves is provided in the sound source box (241); a sound mouth for covering the product under test is provided on a side of the sound source box (241) facing the carrier mechanism (3); one end of the sound source tube faces the test speaker (242), and the other end of the sound source tube is connected to the sound mouth; The test speaker (242) is electrically connected to the test control system (4).

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