Impact resistance detection device and method for light guide film production

Abstract

The invention discloses an impact resistance detection device and method for light guide film production, and relates to the technical field of film production. The device comprises a supporting frame and a light guide film which are arranged on a supporting base, and further comprises a positioning unit which is arranged on the supporting base and comprises a positioning assembly and a pushing assembly; the impact unit provided with an impact ball is arranged on the positioning unit and comprises a deflection assembly, an impact assembly and a distance adjusting assembly, the deflection assembly is used for adjusting the angle of the impact assembly, and the distance adjusting assembly is used for adjusting the stroke of the impact ball according to the deflection angle to achieve equal-force impact. The device has the advantages that multi-angle impact resistance detection can be carried out on the light guide film, the detection range is wider, the impact stroke of the impact ball is flexibly adjusted according to the inclination angle after the inclination angle is adjusted, the impact force of the impact ball impacting the light guide film at different inclination angles is kept the same, drop point deviation cannot occur under the action of gravity, and the detection accuracy is improved. And the detection result is more accurate.

Description

Technical Field

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

[0002] Light-guiding film refers to a film made of transparent plastic with the advantages of low internal stress, bending resistance, good windability and conductivity. Its surface has high polishing and high light transmittance. After the production of the light-guiding film is completed, it is usually tested for its impact resistance using an impact resistance testing device to determine whether the light-guiding film meets the standards.

[0003] Existing impact resistance detection devices use a variety of methods to detect light-guiding films, such as a PVB interlayer high-strength impact resistance detection device with publication number CN215414694U, which includes a fixing component and an impact component, wherein the impact component includes a fan, a bellows, an impact rod and a fixing rod, wherein the fan is fixedly mounted on the support plate, the bellows is rotatably connected to one side of the support plate, and the bellows is connected to the fan, the fixing rod is slidably connected to the support plate, and the fixing rod is arranged on both sides of the bellows, the fixing rod is provided with a first locking nut, and the fixing rod is fixed by the first locking nut;

[0004] When testing the light-guiding film, the existing impact-resistant detection device can usually only perform impact detection on the light-guiding film in a vertical state, and the detection range is relatively low. For some devices that can perform impact detection at an inclined angle, the impact stroke of the impact rod is different due to the different inclination angles in actual use, so that the impact force cannot be accurately controlled. For example, the above-mentioned referenced prior art uses wind pressure and spring pressure to achieve the pop-up impact of the impact rod. In actual use, the impact rod will move downward under the influence of vertical gravity after it pops out, that is, the actual movement trajectory of the impact rod is a parabola, that is, the impact landing point will have deviations, and the impact force will also have deviations due to the different impact angles. Therefore, it is impossible to accurately detect the impact resistance of the light-guiding film under the same 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] In view of the deficiencies in the prior art, the present invention provides an impact resistance detection device and method for light guide film production, which solves the problems raised in the above-mentioned background technology.

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

[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 disposed 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 supporting side plate fixedly mounted on the erection top plate, a steering roller is rotatably mounted on the supporting side plate, a hydraulic push rod is fixedly mounted on the lower part of the erection top plate, a deflection gear is fixedly mounted on the driving end of the hydraulic push rod, a deflection gear is fixedly mounted on the steering roller, and the deflection gear is meshed with the deflection gear rod, and a locking disk is fixedly mounted on the steering roller.

[0018] Preferably, the impact assembly includes an air blowing and suction pump fixedly mounted on the upper part of the mounting top plate for blowing and suctioning air, a compressed air cylinder for storing gas is fixedly mounted on the mounting top plate, an air injection pipe is fixedly mounted on the lower part of the compressed air cylinder, an air pressure control valve is arranged in the air injection pipe, and an air guide mechanism is installed on the lower part of the air injection pipe.

[0019] Preferably, the gas guide mechanism includes an impact delivery tube fixedly mounted on the locking disk, and the impact delivery tube rotates with the rotation of the locking disk, the upper end of the impact delivery tube is connected to the lower end of the gas injection tube through a bent conduit, and the bent conduit is used to conduct the gas in the gas injection tube to the impact delivery tube.

[0020] Preferably, the pitch adjustment assembly comprises a sealing piston disc slidably mounted in the impact delivery pipe, a pitch adjustment cylinder is fixedly mounted on the lower part of the sealing piston disc, an electric adjustment rod is fixedly mounted in the pitch adjustment cylinder, an impact rod is fixedly mounted on the driving end of the electric adjustment rod, and an impact ball is fixedly mounted on the impact rod;

[0021] The lower end of the impact delivery tube is provided with at least one limiting spring for limiting the sealing piston disc, and the lower end of the impact delivery tube is provided with a speed sensor for monitoring the impact speed of the impact ball.

[0022] A method for detecting impact resistance of light guide film production, used in the above-mentioned device for detecting impact resistance of light guide film production, comprises the following steps:

[0023] S1. Place the light-guiding film to be inspected into the positioning unit and use the positioning assembly to position it;

[0024] S2, start the deflection assembly to adjust the impact assembly to a vertical state, start the impact assembly to drive the impact ball to move vertically downward to impact the light guide film, and perform impact resistance testing in the vertical state;

[0025] S3, start the deflection assembly to adjust the impact assembly to different inclination angles, and start the distance adjustment assembly to adjust the impact ball stroke according to the inclination angle to make the impact force of the impact ball the same;

[0026] S4. Start the impact assembly to drive the impact ball to move downward and tilt to impact the light-guiding film, and perform multi-angle and equal-force impact resistance testing.

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

[0028] 1. When the impact resistance detection device detects the light-guiding film, the positioning component can realize the stable positioning of the light-guiding film, so that it will not move during the impact resistance detection. During the detection, the pushing component can realize the horizontal movement of the light-guiding film, so that the light-guiding film can be detected in multiple positions in the lateral position, and the detection range is wider.

[0029] 2. When the anti-impact detection device detects the light-guiding film, the deflection angle of the impact conveying pipe can be flexibly changed through the cooperation of the hydraulic push rod, the deflection gear rod and the deflection gear in the deflection assembly, so that the impact angle of the deflected impact ball on the light-guiding film can be flexibly adjusted, and the application range is wider.

[0030] 3. When testing the light-guiding film, the impact-resistant testing device can apply an initial force of the same intensity to the impact ball by utilizing the cooperation between the impact conveying tube and the impact assembly, and make the impact ball slide and impact in the impact conveying tube, which can effectively prevent the impact ball from tilting due to gravity when moving downward to impact, so that the impact point of the impact ball is accurate, thereby improving the accuracy of the test results.

[0031] 4. When the impact resistance testing device is used to test the light-guiding film, the stroke of the impact ball can be flexibly adjusted through the distance adjustment component, so that after the inclination angle is adjusted, 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 on the light-guiding film at different inclination angles is the same under the same initial force, which is more conducive to the comparison of the test results.

[0032] To sum up, the present invention can perform multi-angle impact resistance testing on the light-guiding 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-guiding film at different inclination angles remains the same, and the landing point will not be offset under the action of gravity, and the detection result is more accurate.

[0033] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

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

[0036] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0037] Figure 3 for Figure 1 Schematic diagram of the structure of the central inspection platform and the erection top plate;

[0038] Figure 4 for Figure 3 The structural diagram of the detection platform;

[0039] Figure 5 for Figure 4 Schematic diagram of the internal structure of the detection platform;

[0040] Figure 6 for Figure 5 A front view of

[0041] Figure 7 for Figure 6 A magnified view of the structure of the middle A part;

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

[0043] Fig. 9 for Figure 8 Schematic diagram of structural decomposition;

[0044] Fig.10 for Figure 3 Schematic diagram of the structure of the middle impact unit;

[0045] Fig.11 for Fig.10 Front view after rotating at a certain angle;

[0046] Fig.12 for Fig.11 A magnified view of the structure of the medium compression air storage cylinder and the impact delivery pipe;

[0047] Fig.13 for Fig.10 Schematic diagram of the internal structure of the middle impact conveying pipe;

[0048] Fig.14 for Fig.13 Schematic diagram of the upper structure of the middle sealing piston disc and the distance adjusting cylinder;

[0049] Fig.15 for Fig.14 Schematic diagram of the internal structure of the center distance adjustment cylinder.

[0050] In the figure: 1 supporting base, 2 moving universal wheel, 3 detecting platform, 4 supporting frame, 5 control console, 6 supporting vertical pole, 7 erecting top plate, 8 blowing suction pump, 9 compression 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 visual detector, 17 placing rod, 18 hanging hook one, 19 hanging hook two, 20 positioning lower frame, 21 supporting side plate, 22 hydraulic pushing rod, 23 speed sensor, 24 deflection gear, 25 deflection gear rod, 26 steering roller, 27 engaging disk, 28 bending conduit, 29 air injection tube, 30 impact ball, 31 limit spring, 32 sealing piston disk, 33 distance adjusting cylinder, 34 impact rod, 35 electric adjustment rod. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] Example 1: Reference Figure 1-Figure 2 , an impact resistance detection device for light guide film production, comprising a support frame 4 arranged on a support base 1 and a light guide film 12 to be detected, wherein the support base 1 and the support frame 4 are used to support the impact resistance detection device as a whole, thereby improving the stability of the light guide film 12 detection process;

[0053] A plurality of movable universal wheels 2 for movement are arranged at the lower part of the support base 1, so as to realize the rapid displacement of the support base 1, facilitate the overall transportation of the anti-impact detection device, and realize the anti-impact detection at multiple positions.

[0054] The impact resistance detection device also includes:

[0055] The positioning unit is arranged on the supporting base 1, and is used to realize the positioning and 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 test, and can also realize the overall horizontal lateral movement of the light guide film 12 during the test, so that the light guide film 12 can be tested in multiple positions in the lateral position, and the detection range is wider;

[0056] An impact unit with an impact ball 30 is provided on the positioning unit, and is used to realize multi-position and multi-angle impact detection of the light-guiding film 12. The impact angle of the impact ball 30 can be flexibly changed during detection, and the impact ball 30 will not be offset due to gravity during impact, so that the landing point is 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-guiding film 12 is the same during multi-angle impacts, so that the impact resistance of the light-guiding film 12 under the same force at different angles can be detected.

[0057] A control console 5 is provided on the support frame 4, and the control console 5 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-guiding film 12, so that the impact angle and impact force of the impact ball 30 can be accurately controlled, thereby improving the accuracy of the impact detection result. At the same time, no excessive human intervention is required during the detection process, which can effectively avoid errors generated during the detection process.

[0058] Example 2: Reference Figure 2-Figure 9 The technical solution of this embodiment is different from that of the first embodiment in that the positioning unit includes a detection platform 3 arranged on a supporting base 1, and a built-in groove 11 is opened in the detection platform 3. The built-in groove 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 laterally;

[0060] The positioning assembly includes a positioning lower frame 20, on which a positioning upper frame 14 is mounted, and the light guide film 12 is clamped and positioned between the positioning lower frame 20 and the positioning upper frame 14, and the positioning upper frame 14 is provided with two handles for easy movement;

[0061] When testing the light-guiding film 12, first flatten the light-guiding film 12 and lay it flat on the positioning lower frame 20, 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-guiding film 12, so that it will not shake during the impact resistance test, effectively improving the stability of the detection process.

[0062] A visual detector 16 for observing the deformation of the light-guiding film 12 after being impacted is provided at the bottom of the built-in groove 11, and the visual detector 16 cooperates with the console 5. The visual detector 16 is a device commonly used for observation and photographing in the prior art. It is used in the present application document to observe and photograph the deformation of the light-guiding film 12, and the observed results can be transmitted to the console 5 and displayed in real time on the console 5, so that the operator can directly observe the deformation state of the light-guiding film 12 after being impacted through the console 5, and can directly compare the results of multiple impacts, so that the impact detection results can be observed more quickly, which is more conducive to judging the impact resistance of the light-guiding 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 10-15 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 inspection is completed, the hydraulic push rod 22 can be started. When the hydraulic push rod 22 is started, its driving end will drive the deflection gear rod 25 to move. When the deflection gear rod 25 moves, it will drive the deflection gear 24 meshed with it to rotate. The rotation of the deflection gear 24 will drive the steering roller 26 to rotate. The rotation of the steering roller 26 will drive the engaging disk 27 to rotate. The rotation of the engaging disk 27 will drive the impact conveying pipe 10 thereon to rotate, so that the inclination angle of the impact conveying pipe 10 can be adjusted, and then the impact angle of the impact ball 30 can be adjusted.

[0077] The deflection angle of the deflection gear 24 can be precisely adjusted by adjusting the moving distance of the deflection gear rod 25 pushed by the hydraulic push rod 22, so that the inclination angle of the impact conveying pipe 10 can be precisely controlled, which can effectively improve the accuracy of the detection result.

[0078] In a further embodiment, the pitch adjustment assembly includes a sealing piston disc 32 slidably mounted in the impact delivery pipe 10, a pitch adjustment cylinder 33 is fixedly mounted at the lower part of the sealing piston disc 32, and an electric adjustment rod 35 is fixedly mounted in the pitch adjustment cylinder 33, and an impact rod 34 is fixedly mounted on the driving end of the electric adjustment rod 35, and the impact ball 30 is fixedly mounted on the impact rod 34;

[0079] After gas is injected into the impact delivery tube 10, the gas will push the sealing piston disk 32 to move in the impact delivery tube 10. When the sealing piston disk 32 moves, it will drive the distance adjustment tube 33 to move, thereby driving the impact rod 34 to move through the electric adjustment rod 35, and then driving the impact ball 30 to move and impact the light guide film 12, thereby completing the impact detection of the impact ball 30, and the impact ball 30 moves directly and smoothly in the impact delivery tube 10, that is, it will not tilt due to the action of gravity under the action of tilt, so that the movement trajectory of the impact ball 30 is parallel rather than parabolic, thereby ensuring that the landing point of the impact ball 30 on the light guide film 12 is accurate and there will be no deviation, which can further improve the accuracy of the detection result.

[0080] After the sealing piston disk 32 drives the impact ball 30 to move and impact the light-guiding film 12, the air suction pump 8 can be started to suck air, and the air filled in the impact delivery pipe 10 can be sucked out through the compression air storage cylinder 9, the air injection pipe 29, and the bent conduit 28. At this time, the sealing piston disk 32 will automatically move up and return to the initial impact position under the action of the negative pressure inside the impact delivery pipe 10, and another impact test can be performed.

[0081] In a further embodiment, after the tilt angle of the impact delivery tube 10 is adjusted, the impact ball 30 needs to move a longer distance when impacting the light guide film 12 due to the change in the tilt angle, so that under the same initial force, the longer the distance, the greater the force applied, resulting in the impact force on the light guide film 12 being different from that in the vertical state at the tilt angle, which may affect the accuracy of the detection result;

[0082] Therefore, according to the inclination angle of the impact conveying tube 10, the electric adjustment rod 35 can be started before the impact to drive the impact rod 34 to move forward, thereby driving the impact ball 30 to move forward in the impact conveying tube 10, that is, changing the initial position of the impact ball 30, pushing its initial position forward, reducing the overall stroke of the impact ball 30, and making the stroke of the impact ball 30 after tilting consistent with the stroke of the impact ball 30 in the vertical state, so that the force exerted by the impact ball 30 on the light-guiding film 12 is consistent, so that the deformation of the light-guiding film 12 under the same magnitude of force in different directions can be accurately judged, thereby effectively improving the accuracy of the detection result.

[0083] The lower end of the impact delivery tube 10 is provided with at least one limit spring 31 for limiting the sealing piston disk 32. The limit 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. The lower end of the impact delivery tube 10 is provided with a speed sensor 23 for monitoring the impact speed of the impact ball 30. The speed sensor 23 is used to measure the terminal speed and time of the impact ball 30 leaving the impact delivery tube 10, so as to cooperate with the control console 5 to calculate the impact kinetic energy of the impact ball 30 according to the travel, time, speed and mass of the impact ball 30.

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

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

[0086] Perform impact detection in a vertical state: start the air blower and suction pump 8 to inject external air into the compressed air cylinder 9, open the air pressure control valve in the air injection pipe 29, and 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. In the impact delivery pipe 10, 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 detection.

[0087] Impact detection in the tilted state: start the hydraulic push rod 22. When the hydraulic push rod 22 is started, its driving end will drive the deflection gear rod 25 to move. When the deflection gear rod 25 moves, it will drive the deflection gear 24 meshing therewith to rotate. The rotation of the deflection gear 24 will drive the steering roller 26 to rotate. The rotation of the steering roller 26 will drive the engaging disk 27 to rotate. The rotation of the engaging disk 27 will drive the impact conveying pipe 10 thereon to rotate, so as to adjust the tilt angle of the impact conveying pipe 10, and then adjust the impact angle of the impact ball 30.

[0088] Then, according to the tilt angle of the impact conveying pipe 10, before impacting, the electric adjustment rod 35 is started to drive the impact rod 34 to move forward, thereby driving the impact ball 30 to move forward in the impact conveying pipe 10, that is, the initial position of the impact ball 30 is changed, so that the initial position is pushed forward, the overall stroke of the impact ball 30 is reduced, and the stroke of the impact ball 30 after tilting is consistent with the stroke of the impact ball 30 in the vertical state, and the preparation work is completed;

[0089] The gas injection pipe 29 is opened again to inject gas to drive the impact ball 30 to move and perform impact testing again.

[0090] The embodiment of the present invention further provides a method for detecting the impact resistance of light guide film production, which is used in the above-mentioned device for detecting the impact resistance of light guide film production, and comprises the following steps:

[0091] S1, placing the light guide film 12 to be inspected into a positioning unit and positioning it using a positioning component;

[0092] S2, start the deflection assembly to adjust the impact assembly to a vertical state, start the impact assembly to drive the impact ball 30 to move vertically downward to impact the light guide film 12, and perform impact resistance testing in the vertical state;

[0093] S3, start the deflection assembly to adjust the impact assembly to different inclination angles, and start 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;

[0094] S4, starting the impact assembly to drive the impact ball 30 to move downward and tilt to impact the light guide film 12, and performing multi-angle and equal-force impact resistance testing.

[0095] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An impact resistance detection device for light guide film production, comprising a support frame (4) arranged on a support base (1) and a light guide film (12) to be detected, characterized in that: Also includes: A positioning unit, arranged on the supporting base (1), for realizing the positioning and placement of the light guide film (12), comprising a positioning component for positioning the light guide film (12) and a pushing component for driving the light guide film (12) to move laterally; An impact unit with an impact ball (30) is arranged on a positioning unit and is used to realize multi-position and multi-angle impact detection of a light-guiding film (12). 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 realize 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 realize equal-force impact.

2. The impact resistance detection device for light guide film production according to claim 1, characterized in that: A plurality of universal wheels (2) for movement are arranged at the lower part of the support base (1), so as to realize rapid displacement of the support base (1); The support frame (4) is provided with a control console (5), which is used to control the opening and closing and operating states of the positioning unit and the impact unit, thereby realizing 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: The positioning unit comprises a detection platform (3) arranged on a support base (1), and a built-in groove (11) is provided in the detection platform (3); The positioning assembly comprises a positioning lower frame (20), an upper positioning frame (14) is mounted 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), and two placement rods (17) for supporting the positioning lower frame (20) are fixedly installed in the built-in groove (11).

4. The impact resistance detection device for light guide film production according to claim 3, characterized in that: A visual detector (16) for observing the deformation of the light guide film (12) after being impacted is arranged at the bottom of the built-in groove (11), and the visual detector (16) cooperates with the control console (5).

5. The impact resistance detection device for light guide film production according to claim 3, characterized in that: The pushing assembly comprises a moving cavity (15) provided in the detection platform (3) for moving the light-guiding 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 arranged on the side of the positioning lower frame (20), and each hanging hook (19) is matched with a corresponding hanging hook (18).

6. The impact resistance detection device for light guide film production according to claim 3, 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).

7. The impact resistance detection device for light guide film production according to claim 6, 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).

8. The impact resistance detection device for light guide film production according to claim 7, 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).

9. The impact resistance detection device for light guide film production according to claim 7, characterized in that: The pitch adjustment assembly comprises a sealing piston disc (32) slidably mounted in an impact delivery pipe (10), a pitch adjustment cylinder (33) is fixedly mounted at the lower part of the sealing piston disc (32), an electric adjustment rod (35) is fixedly mounted in the pitch adjustment cylinder (33), an impact rod (34) is fixedly mounted on the driving end of the electric adjustment rod (35), and an impact ball (30) is fixedly mounted on the impact rod (34); The lower end of the impact delivery tube (10) is provided with at least one limiting spring (31) for limiting the sealing piston disc (32), and the lower end of the impact delivery tube (10) is provided with a speed sensor (23) for monitoring the impact speed of the impact ball (30).

10. An impact resistance detection method for light guide film production, used in the impact resistance detection device for light guide film production as claimed in any one of claims 1 to 9, 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 guide film (12), and performing multi-angle and equal-force impact resistance testing.

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