An impact resistance detection device and method for light guide film production

Abstract

The present invention discloses an impact resistance detection device and method for light guide film production, which relates to the technical field of film production. The present invention includes a support frame and a light guide film disposed on a support base, and further includes: a positioning unit disposed on the support base, including a positioning component and a pushing component; an impact unit provided with an impact ball, disposed on the positioning unit, including a deflection component, an impact component and a distance adjustment component, wherein the deflection component is used to adjust the angle of the impact component, and the distance adjustment component is used to adjust the stroke of the impact ball according to the deflection angle to achieve the same impact force. The advantages are as follows: The present invention can perform multi-angle impact resistance detection on the light guide film, with a wider detection range. After adjusting the inclination angle, the impact stroke of the impact ball can be flexibly adjusted according to the size of the inclination angle, so that the impact force of the impact ball on the light guide film at different inclination angles remains the same, and there will be no landing point offset under the action of gravity, and the detection result is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of film production, and particularly to an impact resistance detection device and method for light guide film production. Background Art

[0002] A light guide film is made of transparent plastic and has advantages such as low internal stress, good bending resistance, coiling conductivity, high surface polish, and high light transmittance. After the light guide film is produced, an impact resistance detection device is usually used to detect its impact resistance performance to determine whether the light guide film meets the standards.

[0003] Existing impact resistance detection devices use various methods to detect light guide films. For example, a PVB interlayer film high-strength impact resistance detection device with the publication number CN215414694U includes a fixing component and an impact component. The impact component includes a fan, a wind box, an impact rod, and a fixing rod. The fan is fixedly installed on the support plate. The wind box is rotatably connected to one side of the support plate and is in communication with the fan. The fixing rod is slidably connected to the support plate and is arranged on both sides of the wind box. The fixing rod is provided with a first locking nut and is fixed by the first locking nut.

[0004] When the existing impact resistance detection device detects a light guide film, it usually only can perform impact detection on the light guide film in a vertical state, and the detection range is low. For some devices that can perform inclined angle impact detection, due to different inclined angles in actual use, the impact stroke of the impact rod is different, making it impossible to accurately control the impact force. For example, in the above-mentioned existing technology, the device uses the cooperation of wind pressure and the pressure of a spring to achieve the ejection impact of the impact rod. However, in actual use, the impact rod will move downward under the influence of the vertical gravity after ejection, that is, the actual movement trajectory of the impact rod is a parabola, so the impact landing point will deviate. At the same time, the impact force will also deviate due to different impact angles. Therefore, it is impossible to accurately detect the impact resistance effect of the light guide film under the same acting force in different directions.

[0005] Therefore, it is urgent to design an impact resistance detection device and method for light guide film production to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the present invention provides an impact resistance detection device and method for light guide film production, which solves the problems raised in the above background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: An impact resistance detection device for light guide film production includes a support frame arranged on a support base and a light guide film to be detected, and further includes:

[0008] A positioning unit is provided on the supporting base and is used to realize the positioning and placement of the light guide film, and includes a positioning component for positioning the light guide film and a pushing component for driving the light guide film to move laterally;

[0009] An impact unit with an impact ball is provided on the positioning unit to realize multi-position and multi-angle impact detection of the light-guiding film, and includes a deflection component, an impact component and a distance adjustment component, wherein the deflection component is used to adjust the angle of the impact component to realize multi-angle impact of the impact ball, and the distance adjustment component is used to adjust the stroke of the impact ball according to the deflection angle to realize equal-force impact.

[0010] Preferably, a plurality of universal wheels for movement are provided at the lower part of the support base to achieve rapid displacement of the support base;

[0011] The support frame is provided with a control console, which is used to control the opening and closing and operating status of the positioning unit and the impact unit, so as to realize the automatic impact resistance detection of the light guide film.

[0012] Preferably, the positioning unit comprises a detection platform arranged on a support base, and a built-in groove is provided in the detection platform;

[0013] The positioning assembly includes a positioning lower frame, on which an upper positioning frame is mounted, and the light guide film is clamped and positioned between the lower positioning frame and the upper positioning frame. Two handles for easy movement are provided on the upper positioning frame, and two placement rods for supporting the lower positioning frame are fixedly installed in the built-in groove.

[0014] Preferably, a visual detector for observing the deformation of the light-guiding film after being impacted is provided at the bottom of the built-in groove, and the visual detector cooperates with the control console.

[0015] Preferably, the pushing assembly includes a moving cavity opened in the detection platform for moving the light-guiding film, and the moving cavity is connected to the built-in groove, a moving rod is slidably installed in the moving cavity, and a plurality of hanging hooks 1 are fixedly installed on the moving rod, and a plurality of hanging hooks 2 are arranged on the side of the positioning lower frame, and each hanging hook 2 cooperates with the corresponding hanging hook 1.

[0016] Preferably, the impact unit comprises two supporting poles fixedly mounted on the detection platform, and a mounting top plate is fixedly mounted on the two supporting poles;

[0017] The deflection assembly includes a support side plate fixedly installed on the erection top plate. A steering roller is rotatably installed on the support side plate. A hydraulic push rod is fixedly installed below the erection top plate. A deflection rack is fixedly installed on the driving end of the hydraulic push rod. A deflection gear is fixedly installed on the steering roller, and the deflection gear meshes with the deflection rack. A clamping disk is fixedly installed on the steering roller.

[0018] Preferably, the impact assembly includes a blower and suction pump fixedly installed on the upper part of the erection top plate for blowing and suction. A compressed air storage cylinder for storing gas is fixedly installed on the erection top plate. An injection air pipe is fixedly installed below the compressed air storage cylinder, and a pneumatic control valve is arranged in the injection air pipe. A gas guiding mechanism is installed below the injection air pipe.

[0019] Preferably, the gas guiding mechanism includes an impact delivery pipe fixedly installed on the clamping disk, and the impact delivery pipe rotates with the rotation of the clamping disk. The upper end of the impact delivery pipe is communicated with the lower end of the injection air pipe through a bent conduit, and the bent conduit is used to conduct the gas in the injection air pipe into the impact delivery pipe.

[0020] Preferably, the distance adjustment assembly includes a sealing piston disk slidably installed in the impact delivery pipe. A distance adjustment cylinder is fixedly installed below the sealing piston disk, and an electric adjustment rod is fixedly installed in the distance adjustment cylinder. An impact rod is fixedly installed on the driving end of the electric adjustment rod, and an impact ball is fixedly installed on the impact rod.

[0021] At least one limiting spring for limiting the sealing piston disk is arranged at the lower end of the impact delivery pipe. A speed measurement sensor for monitoring the impact speed of the impact ball is arranged at the lower end of the impact delivery pipe.

[0022] An impact resistance detection method for light guide film production, which is used for the above-mentioned impact resistance detection device for light guide film production, includes the following steps:

[0023] S1. Place the light guide film to be detected into the positioning unit and use the positioning assembly for positioning.

[0024] S2. Start the deflection assembly to adjust the impact assembly to the vertical state, start the impact assembly to drive the impact ball to move vertically downward to impact the light guide film, and conduct impact resistance detection in the vertical state.

[0025] S3. Start the deflection assembly to adjust the impact assembly to different angles of inclination, and start the distance adjustment assembly to adjust the stroke of the impact ball according to the inclination angle so that the impact force of the impact ball is the same.

[0026] S4. Start the impact assembly to drive the impact ball to move obliquely downward to impact the light guide film, and conduct multi-angle and same-force impact resistance detection.

[0027] The present invention provides an impact resistance detection device and method for light guide film production. It has the following beneficial effects:

[0028] 1. When the impact resistance detection device detects the light guide film, through the cooperation of the positioning component, stable positioning of the light guide film can be achieved, so that it will not move during the impact resistance detection. During the detection, through the cooperation of the pushing component, horizontal translation of the light guide film can be achieved, so that multi-position detection in the horizontal position of the light guide film can be carried out, and the detection range is wider.

[0029] 2. When the impact resistance detection device detects the light guide film, through the cooperation of the hydraulic push rod, deflection rack and deflection gear in the deflection component, the deflection angle of the impact delivery pipe can be flexibly changed, that is, the angle of the deflection impact ball impacting the light guide film can be flexibly adjusted, and the applicable range is wider.

[0030] 3. When the impact resistance detection device detects the light guide film, by using the cooperation of the impact delivery pipe and the impact component, an initial force with the same magnitude can be applied to the impact ball, and the impact ball can slide and impact in the impact delivery pipe, which can effectively avoid the inclination of the impact ball due to the gravity during the downward impact, make the impact landing point of the impact ball accurate, and improve the accuracy of the detection result.

[0031] 4. When the impact resistance detection device detects the light guide film, through the distance adjustment component, the stroke of the impact ball can be flexibly adjusted. After adjusting the inclination angle, the stroke of the impact ball can be adaptively adjusted according to the size of the inclination angle, so that the impact force of the impact ball acting on the light guide film at different inclination angles under the same initial force is the same, which is more conducive to comparing the detection results.

[0032] In summary, the present invention can perform impact resistance detection on the light guide film from multiple angles, with a wider detection range. After adjusting the inclination angle, the impact stroke of the impact ball can be flexibly adjusted according to the size of the inclination angle, so that the impact force of the impact ball impacting the light guide film at different inclination angles remains the same, and there will be no deviation in the landing point due to the gravity, and the detection result is more accurate.

[0033] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The following further details the specific embodiments of the present invention in conjunction with the drawings, where:

[0035] Figure 1 is a schematic structural diagram of an impact resistance detection device for light guide film production proposed by the present invention;

[0036] Figure 2 is Figure 1 a structural schematic diagram after rotating a certain angle;

[0037] Figure 3 is Figure 1 a structural schematic diagram of the detection platform and the erection top plate in ;

[0038] Figure 4 is Figure 3 a structural schematic diagram of the detection platform in ;

[0039] Figure 5 is Figure 4 a structural schematic diagram of the interior of the detection platform in ;

[0040] Figure 6 is Figure 5 the front view of ;

[0041] Figure 7 is Figure 6 a magnified structural diagram of part A in ;

[0042] Figure 8 is a structural schematic diagram of the positioning component in the present invention;

[0043] Figure 9 is Figure 8 a structural exploded view of ;

[0044] Figure 10 is Figure 3 a structural schematic diagram of the impact unit in ;

[0045] Figure 11 is Figure 10 the front view after rotating a certain angle;

[0046] Figure 12 is Figure 11 a magnified structural diagram of the compressed air storage cylinder and the impact delivery pipe in ;

[0047] Figure 13 is Figure 10 a structural schematic diagram of the interior of the impact delivery pipe in ;

[0048] Figure 14 is Figure 13 a structural schematic diagram of the upper part of the sealing piston disc and the distance adjusting cylinder in ;

[0049] Figure 15 is Figure 14 a structural schematic diagram of the interior of the distance adjusting cylinder in .

[0050] In the figure: 1 support base, 2 mobile universal wheels, 3 detection platform, 4 support frame, 5 control console, 6 support vertical rod, 7 erection top plate, 8 air blowing and suction pump, 9 compressed air storage cylinder, 10 impact conveying pipe, 11 built-in groove, 12 light guide film, 13 moving rod, 14 positioning upper frame, 15 moving cavity, 16 vision detector, 17 placing rod, 18 hanging hook one, 19 hanging hook two, 20 positioning lower frame, 21 support side plate, 22 hydraulic push rod, 23 speed measurement sensor, 24 deflection gear, 25 deflection rack, 26 steering roller, 27 engaging disc, 28 bent conduit, 29 injection pipe, 30 impact ball, 31 limit spring, 32 sealing piston disc, 33 distance adjusting cylinder, 34 impact rod, 35 electric adjusting rod. Specific implementation manner

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in 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.

[0052] Embodiment 1: Refer to Figure 1 - Figure 2 , an impact resistance detection device for light guide film production, including a support frame 4 arranged on a support base 1 and a light guide film 12 to be detected. The support base 1 and the support frame 4 are used to integrally support this impact resistance detection device, improving the stability of the light guide film 12 during the detection process;

[0053] A plurality of mobile universal wheels 2 for movement are arranged at the lower part of the support base 1, realizing the rapid displacement of the support base 1, facilitating the overall transportation of this impact resistance detection device, and realizing impact resistance detection at multiple positions.

[0054] This impact resistance detection device further includes:

[0055] A positioning unit, arranged on the support base 1, is used to realize the positioning placement of the light guide film 12, realize the stable positioning of the light guide film 12, so that it will not move during the impact resistance detection, and can also realize the overall horizontal translation of the light guide film 12 during the detection, so as to perform multi-position detection on the light guide film 12 in the horizontal position, with a wider detection range;

[0056] An impact unit provided with an impact ball 30, arranged on the positioning unit, is used to realize multi-position and multi-angle impact detection of the light guide film 12. The impact angle of the impact ball 30 can be flexibly changed during the detection, and the impact ball 30 will not shift due to the action of gravity during the impact, making its landing position more accurate. At the same time, the impact force of the impact ball 30 can be controlled so that the impact force acting on the light guide film 12 at multiple angles is the same, and the impact resistance effect of the light guide film 12 under the same acting force at different angles can be detected.

[0057] A control console 5 is provided on the support frame 4. The control console 5 is used to control the opening, closing and operating states of the positioning unit and the impact unit, realizing the automatic impact detection of the light guide film 12, so that both the impact angle and the impact force of the impact ball 30 can be accurately controlled, improving the accuracy of the impact detection result. At the same time, the detection process requires little manual intervention, effectively avoiding errors generated during the detection process.

[0058] Example 2: Refer to Figure 2 - Figure 9 , the different technical solution of this embodiment compared with the first embodiment is that: the positioning unit includes a detection platform 3 provided on the support base 1, and an internal slot 11 is opened in the detection platform 3. The internal slot 11 is a space for placing and detecting the light guide film 12, which can improve the stability of the detection process of the light guide film 12.

[0059] The positioning unit includes a positioning component for positioning the light guide film 12 and a pushing component for driving the light guide film 12 to move horizontally;

[0060] The positioning component includes a positioning lower frame 20, and a positioning upper frame 14 is snap-fitted on the positioning lower frame 20. The light guide film 12 is clamped and positioned between the positioning lower frame 20 and the positioning upper frame 14. Two handles for easy movement are provided on the positioning upper frame 14.

[0061] When detecting the light guide film 12, first flatten and lay the light guide film 12 on the positioning lower frame 20, and then hold the two handles to snap the positioning upper frame 14 onto the positioning lower frame 20. At this time, the positioning lower frame 20 and the positioning upper frame 14 cooperate to clamp and position the light guide film 12, so that it will not shake during the impact resistance detection, effectively improving the stability of the detection process.

[0062] A visual detector 16 for observing the deformation of the light guide film 12 after being impacted is provided at the bottom of the internal slot 11, and the visual detector 16 cooperates with the control console 5. The visual detector 16 is a commonly used device for observation and photography in the prior art. Applied to this application document, it can observe, photograph and take pictures of the deformation of the light guide film 12, and can transmit the observed results to the control console 5 for real-time display on the control console 5. So that the operator can directly observe the deformation state of the light guide film 12 after being impacted through the control console 5, and can directly compare the results of multiple impacts, and can observe the impact detection results more quickly, which is more conducive to judging the impact resistance performance of the light guide film 12.

[0063] In a further embodiment, the push assembly includes a moving cavity 15 provided in the detection platform 3 for moving the light guide film 12, and the moving cavity 15 is communicated with the built-in groove 11, a moving rod 13 is slidably installed in the moving cavity 15, and a plurality of hanging hooks 18 are fixedly installed on the moving rod 13, and a plurality of hanging hooks 19 are provided on the side of the positioning lower frame 20, and each hanging hook 19 is matched with the corresponding hanging hook 18;

[0064] Two placement rods 17 for supporting the positioning lower frame 20 are fixedly installed in the built-in groove 11. After the light guide film 12 is positioned, the positioning lower frame 20 and the positioning upper frame 14 can be placed in the built-in groove 11 as a whole, and the lower part of the positioning lower frame 20 is placed on the two placement rods 17 to support the positioning lower frame 20 as a whole.

[0065] When the lower positioning frame 20 is placed, the plurality of hanging hooks 2 19 on its side can be hung and engaged with the hanging hooks 1 18 at the plurality of corresponding positions on the moving rod 13 to complete the overall placement. At this time, the impact resistance test of the light guide film 12 can be started.

[0066] After the initial placement of the light guide film 12, it is located at the center of the built-in groove 11. At this time, when the impact ball 30 performs the impact test, the position of the light guide film 12 is the center line position, that is, the center line area of the light guide film 12 is subjected to the impact resistance test. After the center line area test is completed, the operator can pull the moving rod 13 to make it move horizontally. When the moving rod 13 moves, it will drive the positioning lower frame 20 and the light guide film 12 thereon to move as a whole through the cooperation of the multiple hanging hooks 18 and the multiple hanging hooks 2 19, so that the light guide film 12 can be pulled to deflect.

[0067] After the displacement, the impact position of the light-guiding film 12 and the impact ball 30 will change accordingly, that is, the position where the impact ball 30 impacts the light-guiding film 12 will be offset, and impact detection can be performed on other positions of the light-guiding film 12 except the center line area, thereby effectively increasing the detection range, increasing the number of samples of the detection results, and further improving the accuracy of the detection results.

[0068] Example 3: Reference Figure 1 - Figure 3 as well as Figure 10 - Figure 15 The technical solution of this embodiment is different from that of the second embodiment in that the impact unit includes two supporting uprights 6 fixedly mounted on the detection platform 3, and a mounting top plate 7 is fixedly mounted on the two supporting uprights 6, and two supporting cross bars are fixedly mounted between the mounting top plate 7 and the supporting frame 4, and the mounting top plate 7 plays an overall supporting role to improve the stability of the impact process.

[0069] The impact unit includes a deflection component, an impact component and a distance adjustment component, wherein the deflection component is used to adjust the angle of the impact component to achieve multi-angle impact of the impact ball 30, and the distance adjustment component is used to adjust the stroke of the impact ball 30 according to the deflection angle to achieve equal force impact;

[0070] The deflection assembly includes a supporting side plate 21 fixedly mounted on the mounting top plate 7, a steering roller 26 is rotatably mounted on the supporting side plate 21, a locking disk 27 is fixedly mounted on the steering roller 26, and the supporting side plate 21 is used to horizontally support the steering roller 26. The rotation of the steering roller 26 will drive the locking disk 27 to rotate.

[0071] In a further embodiment, the impact assembly includes an air blowing and suction pump 8 fixedly mounted on the upper part of the mounting top plate 7 for blowing and suctioning, a compressed air storage cylinder 9 for storing gas is fixedly mounted on the mounting top plate 7, an air injection pipe 29 is fixedly mounted on the lower part of the compressed air storage cylinder 9, and an air pressure control valve is arranged in the air injection pipe 29, when the air blowing and suction pump 8 is started, it absorbs external air and injects air into the compressed air storage cylinder 9, so that gas can be compressed and stored in the compressed air storage cylinder 9, and an air pressure sensor for monitoring air pressure is arranged in the compressed air storage cylinder 9;

[0072] The lower part of the gas injection pipe 29 is provided with a gas guide mechanism, which includes an impact delivery pipe 10 fixedly mounted on the clamping disk 27, and the impact delivery pipe 10 rotates with the rotation of the clamping disk 27, and the upper end of the impact delivery pipe 10 is connected with the lower end of the gas injection pipe 29 through a bent conduit 28, and the bent conduit 28 is used to conduct the gas in the gas injection pipe 29 to the impact delivery pipe 10;

[0073] When performing an impact test on the light-guiding film 12, the air pressure in the compressed air cylinder 9 is pre-set to a fixed value so that the air pressure is the same during each impact. When performing an impact test, the air pressure control valve in the air injection pipe 29 is opened to allow the gas in the compressed air cylinder 9 to rush out through the air injection pipe 29 into the bent conduit 28, and then rush into the impact delivery pipe 10 through the bent conduit 28. When the impact delivery pipe 10 is in place, a constant initial velocity can be applied to the impact ball 30 in the impact delivery pipe 10, so that the impact ball 30 moves downward in the impact delivery pipe 10 and impacts the light-guiding film 12, thereby completing the impact test.

[0074] In a further embodiment, when performing the preliminary test, the impact delivery tube 10 is first kept in a vertical state, so that the impact ball 30 vertically impacts the light guide film 12 to complete the preliminary test in the vertical state, and the test data is recorded;

[0075] A hydraulic push rod 22 is fixedly installed at the lower part of the erection top plate 7, a deflection gear rod 25 is fixedly installed on the driving end of the hydraulic push rod 22, a deflection gear 24 is fixedly installed on the steering roller 26, and the deflection gear 24 is meshed with the deflection gear rod 25;

[0076] After the preliminary detection is completed, the hydraulic push rod 22 can be activated. When the hydraulic push rod 22 is activated, its driving end will drive the deflection rack 25 to move. When the deflection rack 25 moves, it will drive the deflection gear 24 meshed with it to rotate. When the deflection gear 24 rotates, it will drive the steering roller 26 to rotate. When the steering roller 26 rotates, it will drive the engagement disk 27 to rotate. When the engagement disk 27 rotates, it will drive the impact delivery pipe 10 thereon to rotate, so as to adjust the inclination angle of the impact delivery pipe 10, and further adjust the impact angle of the impact ball 30.

[0077] The deflection angle of the deflection gear 24 can be accurately adjusted by adjusting the moving distance of the hydraulic push rod 22 to push the deflection rack 25, so that the inclination angle of the impact delivery pipe 10 can be accurately controlled, and the accuracy of the detection result can be effectively improved.

[0078] In a further embodiment, the distance adjusting assembly includes a sealing piston disk 32 slidably installed in the impact delivery pipe 10. A distance adjusting cylinder 33 is fixedly installed at the lower part of the sealing piston disk 32. An electric adjusting rod 35 is fixedly installed in the distance adjusting cylinder 33. An impact rod 34 is fixedly installed on the driving end of the electric adjusting rod 35. The impact ball 30 is fixedly installed on the impact rod 34.

[0079] After the impact delivery pipe 10 is filled with gas, the gas will push the sealing piston disk 32 to move in the impact delivery pipe 10. When the sealing piston disk 32 moves, it will drive the distance adjusting cylinder 33 to move, so as to drive the impact rod 34 to move through the electric adjusting rod 35, and further drive the impact ball 30 to move and impact the light guide film 12, thus completing the impact detection of the impact ball 30. And the impact ball 30 moves smoothly directly in the impact delivery pipe 10, that is, it will not tilt due to the action of gravity under the inclination, so that the movement track of the impact ball 30 is in a parallel state rather than a parabolic state, so as to ensure that the landing position of the impact ball 30 on the light guide film 12 is accurate without deviation, and the accuracy of the detection result can be further improved.

[0080] After the sealing piston disk 32 drives the impact ball 30 to move and impact the light guide film 12, the air blower and suction pump 8 can be activated for suction, and the air filled in the impact delivery pipe 10 can be sucked out through the compressed air storage cylinder 9, the injection pipe 29 and the bent conduit 28. At this time, the sealing piston disk 32 will automatically move upward under the negative pressure in the impact delivery pipe 10 and return to the initial impact position, and the impact detection can be carried out again.

[0081] In a further embodiment, after the inclination angle of the impact conveying pipe 10 is adjusted, due to the change in the inclination angle, when the impact ball 30 impacts on the light guide film 12, the travel distance it needs to move will become longer. Under the same initial acting force, the longer the travel distance, the greater the acting force exerted. As a result, the impact force on the light guide film 12 at the inclined angle is different from that in the vertical state, which will affect the accuracy of the detection result;

[0082] Therefore, according to the magnitude of the inclination angle of the impact conveying pipe 10, before the impact, the electric adjusting rod 35 can be activated to drive the impact rod 34 to push forward, thereby driving the impact ball 30 to move forward in the impact conveying pipe 10, that is, changing the initial position of the impact ball 30, pushing its initial position forward, reducing the overall travel distance of the impact ball 30, and making the travel distance of the inclined impact ball 30 consistent with that of the impact ball 30 in the vertical state. Thus, the acting force of the impact ball 30 on the light guide film 12 can be kept consistent, so as to accurately judge the deformation of the light guide film 12 under the action of the same magnitude of acting force in different directions, and effectively improve the accuracy of the detection result.

[0083] At least one limiting spring 31 for limiting the sealing piston disk 32 is arranged at the lower end of the impact conveying pipe 10. The limiting spring 31 is used to limit the position of the sealing piston disk 32 to prevent the sealing piston disk 32 from falling when not in use. A speed measuring sensor 23 for monitoring the impact speed of the impact ball 30 is arranged at the lower end of the impact conveying pipe 10. The speed measuring sensor 23 is used to measure the end speed and time of the impact ball 30 leaving the impact conveying pipe 10, which is convenient for cooperating with the control console 5 to calculate the impact kinetic energy of the impact ball 30 according to the travel distance, time, speed and mass of the impact ball 30.

[0084] In a further embodiment, by changing the gas storage pressure of the compressed gas in the compressed gas cylinder 9, the initial moving speed of the impact ball 30 can be changed, so as to achieve the impact force of the impact ball 30 on the light guide film 12 at the same vertical or inclined angle, and thus calculate the deformation degree of the light guide film 12 under the action of different impact forces at the same angle, and further detect the impact resistance of the light guide film 12.

[0085] The specific detection method of this impact resistance detection device is as follows: First, flatten and lay the light guide film 12 on the positioning lower frame 20, and then hold the two handles to snap the positioning upper frame 14 onto the positioning lower frame 20. At this time, the positioning lower frame 20 and the positioning upper frame 14 cooperate to clamp and position the light guide film 12;

[0086] Perform impact detection in the vertical state: Start the air blowing and suction pump 8 to inject external air into the compressed air storage cylinder 9. Open the pneumatic control valve in the air injection pipe 29, so that the gas in the compressed air storage cylinder 9 rushes out through the air injection pipe 29 into the bent conduit 28, and then into the impact delivery pipe 10 through the bent conduit 28. In the impact delivery pipe 10, a constant initial velocity can be applied to the impact ball 30 in the impact delivery pipe 10, causing the impact ball 30 to move downward in the impact delivery pipe 10 and impact the light guide film 12 to complete the impact detection.

[0087] Perform impact detection in the inclined state: Start the hydraulic push rod 22. When the hydraulic push rod 22 is started, its driving end will drive the deflecting rack 25 to move. When the deflecting rack 25 moves, it will drive the meshing deflecting gear 24 to rotate. When the deflecting gear 24 rotates, it will drive the steering roller 26 to rotate. When the steering roller 26 rotates, it will drive the engaging disc 27 to rotate. When the engaging disc 27 rotates, it will drive the impact delivery pipe 10 thereon to rotate, thereby adjusting the inclination angle of the impact delivery pipe 10 and further adjusting the impact angle of the impact ball 30.

[0088] Then, according to the inclination angle of the impact delivery pipe 10, before the impact, start the electric adjusting rod 35 to drive the impact rod 34 to push forward, thereby driving the impact ball 30 to move forward in the impact delivery pipe 10, that is, changing the initial position of the impact ball 30, pushing its initial position forward, reducing the overall travel of the impact ball 30, and making the travel of the inclined impact ball 30 consistent with the travel of the impact ball 30 in the vertical state to complete the preparation work.

[0089] Open the air injection pipe 29 again to inject gas to drive the impact ball 30 to move for another impact detection.

[0090] The embodiment of the present invention also provides an anti-impact detection method for the production of a light guide film, which is used for the above anti-impact detection device for the production of a light guide film, and includes the following steps:

[0091] S1. Place the light guide film 12 to be detected into the positioning unit and perform positioning using the positioning component.

[0092] S2. Start the deflecting component to adjust the impact component to the vertical state, start the impact component to drive the impact ball 30 to move vertically downward to impact the light guide film 12, and perform anti-impact detection in the vertical state.

[0093] S3. Start the deflecting component to adjust the impact component to be inclined at different angles, and start the distance adjusting component to adjust the travel of the impact ball 30 according to the inclination angle, so that the impact force of the impact ball 30 is the same.

[0094] S4. Start the impact component to drive the impact ball 30 to move downward obliquely to impact the light guide film 12, and perform anti-impact detection with multiple angles and the same force.

[0095] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An impact resistance detection device for the production of light guide films, comprising a support frame (4) arranged on a support base (1) and a light guide film (12) to be detected, characterized in that, It further includes: A positioning unit, which is arranged on the support base (1) and is used to achieve the positioning and placement of the light guide film (12). It includes a positioning component for positioning the light guide film (12) and a pushing component for driving the lateral movement of the light guide film (12). The positioning unit includes a detection platform (3) arranged on the support base (1). An internal slot (11) is opened in the detection platform (3). The positioning component includes a positioning lower frame (20). The pushing component includes a moving cavity (15) opened in the detection platform (3) for the light guide film (12) to move. The moving cavity (15) is communicated with the internal slot (11). A moving rod (13) is slidably installed in the moving cavity (15), and a plurality of hanging hooks one (18) are fixedly installed on the moving rod (13). A plurality of hanging hooks two (19) are arranged on the side of the positioning lower frame (20), and each hanging hook two (19) is matched with the corresponding hanging hook one (18). An impact unit provided with an impact ball (30), which is arranged on the positioning unit and is used to achieve the impact detection of the light guide film (12) at multiple positions and multiple angles. It includes a deflection component, an impact component and a distance adjustment component. The deflection component is used to adjust the angle of the impact component to achieve the multi-angle impact of the impact ball (30), and the distance adjustment component is used to adjust the stroke of the impact ball (30) according to the deflection angle to achieve the same force impact. An impact delivery pipe (10) is arranged in the impact component. The distance adjustment component includes a sealing piston disc (32) slidably installed in the impact delivery pipe (10). A distance adjustment cylinder (33) is fixedly installed at the lower part of the sealing piston disc (32). An electric adjustment rod (35) is fixedly installed in the distance adjustment cylinder (33). An impact rod (34) is fixedly installed on the driving end of the electric adjustment rod (35), and the impact ball (30) is fixedly installed on the impact rod (34). At least one limiting spring (31) for limiting the sealing piston disc (32) is arranged at the lower end of the impact delivery pipe (10). A speed measuring sensor (23) for monitoring the impact speed of the impact ball (30) is arranged at the lower end of the impact delivery pipe (10).

2. The impact resistance detection device for light guide film production according to claim 1, wherein A plurality of moving universal wheels (2) for moving are arranged at the lower part of the support base (1) to realize the rapid displacement of the support base (1). A console (5) is arranged on the support frame (4). The console (5) is used to control the opening and closing and operating states of the positioning unit and the impact unit to realize the automatic impact resistance detection of the light guide film (12).

3. The impact resistance detection device for light guide film production according to claim 2, characterized in that, A positioning upper frame (14) is snap-fitted and installed on the positioning lower frame (20), and the light guide film (12) is clamped and positioned between the positioning lower frame (20) and the positioning upper frame (14). Two handles for easy movement are arranged on the positioning upper frame (14). Two placing rods (17) for supporting the positioning lower frame (20) are fixedly installed in the internal slot (11).

4. An impact resistance detection device for light guide film production according to claim 3, characterized in that, A visual detector (16) for observing the deformation condition of the light guide film (12) after being impacted is arranged at the bottom of the internal slot (11), and the visual detector (16) is matched with the console (5).

5. The impact resistance detection device for light guide film production according to claim 4, characterized in that, The impact unit comprises two supporting uprights (6) fixedly mounted on the detection platform (3), and a mounting top plate (7) is fixedly mounted on the two supporting uprights (6); The deflection assembly comprises a supporting side plate (21) fixedly mounted on a mounting top plate (7), a steering roller (26) being rotatably mounted on the supporting side plate (21), a hydraulic push rod (22) being fixedly mounted on the lower part of the mounting top plate (7), a deflection gear rod (25) being fixedly mounted on the driving end of the hydraulic push rod (22), a deflection gear (24) being fixedly mounted on the steering roller (26), and the deflection gear (24) being meshed with the deflection gear rod (25), and a clamping disc (27) being fixedly mounted on the steering roller (26).

6. The impact resistance detection device for light guide film production according to claim 5, characterized in that, The impact assembly comprises an air blowing and suction pump (8) fixedly mounted on the upper part of a mounting top plate (7) for blowing and sucking air, a compressed air storage cylinder (9) for storing gas is fixedly mounted on the mounting top plate (7), an air injection pipe (29) is fixedly mounted at the lower part of the compressed air storage cylinder (9), an air pressure control valve is arranged in the air injection pipe (29), and an air guide mechanism is installed at the lower part of the air injection pipe (29).

7. An impact resistance detection device for light guide film production according to claim 6, characterized in that, The gas guide mechanism comprises an impact delivery pipe (10) fixedly mounted on a clamping disk (27), and the impact delivery pipe (10) rotates with the rotation of the clamping disk (27), and the upper end of the impact delivery pipe (10) is connected to the lower end of the gas injection pipe (29) through a bent conduit (28), and the bent conduit (28) is used to conduct the gas in the gas injection pipe (29) to the impact delivery pipe (10).

8. An impact resistance detection method for light guide film production, which is used for the impact resistance detection device for light guide film production according to any one of claims 1-7, characterized in that, The following steps are involved: S1, placing the light-guiding film (12) to be inspected into a positioning unit, and positioning it using a positioning component; S2, starting the deflection assembly to adjust the impact assembly to a vertical state, starting the impact assembly to drive the impact ball (30) to move vertically downward to impact the light guide film (12), and performing impact resistance testing in the vertical state; S3, starting the deflection assembly to adjust the inclination of the impact assembly to different angles, and starting the distance adjustment assembly to adjust the stroke of the impact ball (30) according to the inclination angle, so that the impact force of the impact ball (30) is the same; S4, starting the impact assembly to drive the impact ball (30) to move downward obliquely to impact the light-guiding film (12), and performing multi-angle and equal-force impact resistance testing.

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