Comprehensive performance testing device for reflective film

Abstract

The invention relates to the technical field of reflective film detection, and discloses a comprehensive performance testing device for a reflective film, the comprehensive performance testing device comprises a detection chamber, the rear side of the inner wall of the detection chamber is sequentially provided with two temperature detection boxes, an impact detection assembly and a reflective detection assembly from left to right, and the temperature detection boxes comprise a high temperature test box and a low temperature test box; a first electric push rod is fixedly connected to the center of the upper surface of the lifting frame, the driving end of the first electric push rod is fixedly connected with the upper surface of a temperature detection box, a box door is fixedly connected to the bottom end of the lifting frame, a membrane is arranged on the inner side of the clamping assembly, and a detection opening is formed in the surface of the membrane. The clamping assembly is used for clamping and conveying the membrane. The reflective film is fixed through the diaphragm, and the detection port in the surface of the diaphragm corresponds to the descending position of the impact head, so that the diaphragm is prevented from being damaged by the impact head during an impact test, the service life of the diaphragm is prolonged, repeated utilization is realized, and the cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of reflective film detection, in particular to a comprehensive performance testing device for reflective film. Background Art

[0002] Reflective film is a thin film material with retro-reflective properties. It can reflect light back in the direction of incidence and can be used in many fields such as traffic signs, vehicle identification, industrial safety and advertising. Among them, reflective film is widely used in outdoor environments when used in the field of traffic signs. The outdoor environmental conditions are relatively harsh and experience frequent changes in temperature. In addition, sand and other particulate matter often impact traffic reflective film. Therefore, the reflective film needs to be tested to ensure its performance.

[0003] After searching, a traffic reflective film performance testing device is disclosed in the announcement number: CN118330151 B, which mainly relates to the field of reflective film detection technology, including a frame, a slider slidably arranged on the frame, a push plate fixedly arranged on the slider, a storage bin arranged on the frame, a diaphragm placed in the storage bin, the push plate is used to push out the diaphragm in the storage bin, a rotating wheel of the conveying mechanism is connected to the rotating shaft, another rotating wheel of the conveying mechanism is rotatably arranged on the frame, and the conveying mechanism is located below the long strip hole of the frame, the conveying mechanism is used to transmit the diaphragm, and the film laminating machine affixes the reflective film to the diaphragm, the frame is provided with four square holes, and a reflective detection component, a heat-resistant detection mechanism, a cold-resistant detection mechanism, and an impact detection mechanism are sequentially arranged on the frame, and the reflective detection component, the heat-resistant detection mechanism, the cold-resistant detection mechanism, and the impact detection mechanism are sequentially located below the four square holes.

[0004] In the above application, the impact resistance of the reflective film on the diaphragm is detected by an impact detection mechanism. When an impact detection mechanism such as a steel ball free fall impact tester, a drop hammer impact tester or a pendulum impact tester is used, it will simultaneously impact the diaphragm, causing deformation or damage, affecting the reuse of the diaphragm and causing waste. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a comprehensive performance testing device for reflective film, which solves the problem that the impact test will simultaneously impact the film, causing deformation or damage, thereby affecting the reuse of the film and causing waste.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a comprehensive performance testing device for reflective film, comprising a detection chamber, wherein two temperature detection boxes, an impact detection assembly and a reflective detection assembly are arranged in sequence from left to right on the rear side of the inner wall of the detection chamber, the temperature detection box comprises a high-temperature test box and a low-temperature test box, the outer walls of the high-temperature test box and the low-temperature test box are fixedly connected to the inner wall of the detection chamber, and the upper side walls of the two temperature detection boxes are respectively slidably connected with U-shaped lifting frames, a first electric push rod is fixedly connected at the center of the upper surface of the lifting frame, a driving end of the first electric push rod is fixedly connected to the upper surface of the temperature detection box, a box door is fixedly connected to the bottom end of the lifting frame, an electric slide is fixedly connected to the front side of the inner wall of the detection chamber, a second electric push rod is fixedly connected to the outer wall of the slider of the electric slide, a clamping assembly is fixedly connected to the driving end of the second electric push rod, a diaphragm is arranged on the inner side of the clamping assembly, a detection port is opened on the surface of the diaphragm, and the clamping assembly is used to clamp and convey the diaphragm.

[0007] Preferably, the clamping assembly includes a connecting plate, the outer wall of the connecting plate is fixedly connected to the driving end of the second electric push rod, telescopic support rods are fixedly connected to both sides of the outer wall of the connecting plate, the other end of the telescopic support rods is fixedly connected to the outer wall of the slider of the electric slide, and sliding grooves are respectively opened on both sides of the inner wall of the connecting plate, the inner wall of the sliding groove is slidably connected to a clamping arm, the inner side wall of the sliding groove is fixedly connected to a first spring, the other end of the first spring is fixedly connected to the outer wall of the clamping arm, and the diaphragm is arranged between the two clamping arms.

[0008] Preferably, two receiving grooves are provided on the side of the clamping arm facing the diaphragm, and the two receiving grooves are arranged in a high and low cross pattern. The inner sliding connection of the receiving groove is connected to a limit pin, the outer wall of the limit pin is fixedly connected to a magnetic ring, the inner wall of the receiving groove is fixedly connected to a tension spring, the other end of the tension spring is fixedly connected to the outer wall of the limit pin, the outer wall of the clamping arm is fixedly connected to an L-shaped stripping rack, the left and right outer walls of the diaphragm are respectively provided with limiting grooves in a high and low cross pattern, and the inside of the limiting groove is embedded with an iron block.

[0009] Preferably, the diaphragm includes a U-shaped fixing seat, the left and right inner walls of the fixing seat are respectively provided with slots, a detection plate is commonly inserted inside the two slots, an annular pressure plate is arranged above the detection plate, the inner diameter of the pressure plate is larger than the diameter of the detection port, threaded columns are respectively penetrated on the left and right sides of the pressure plate, a small gear is threadedly connected to the outer wall of the threaded column, the lower surface of the small gear is rotatably connected to the upper surface of the pressure plate, the tooth ends of the two small gears are commonly meshed and connected to a large gear, the bottom end of the large gear is rotatably connected to the upper surface of the pressure plate, and positioning grooves are respectively provided on both sides of the upper surface of the fixing seat.

[0010] Preferably, the clamping assembly also includes two counterweight hole plates and four inclined blocks. The counterweight hole plate is arranged above the box door, and telescopic limit rods are fixedly connected to both sides of the upper surface of the counterweight hole plate, and the top of the telescopic limit rod is fixedly connected to the inner top wall of the temperature detection box. A baffle is fixedly connected to the upper surface of the counterweight hole plate, and the outer wall of the baffle protrudes outward to form a limiting protrusion. Openings are respectively opened on both sides of the counterweight hole plate, and the inclined block is located below the opening, and the lower surface of the inclined block is fixedly connected to the upper surface of the box door.

[0011] Preferably, L-shaped brackets are fixedly connected to both sides of the upper surface of the counterweight hole plate, the inner side wall of the L-shaped bracket is slidably connected to a counterweight positioning seat, and the lower surface of the counterweight positioning seat is fixedly connected to a positioning column.

[0012] Preferably, the impact detection assembly comprises a top plate and a bottom plate arranged from top to bottom, the outer walls of the top plate and the bottom plate are fixedly connected to the inner wall of the detection chamber, the surface of the bottom plate is provided with an impact port, the lower surface of the top plate is fixedly connected to a driver, the driving end of the driver is fixedly connected to a rotating table, the surface of the rotating table is provided with a plurality of through holes distributed in an annular shape, the interior of the through hole is fixedly connected to an upper cylinder, a limiting cavity is provided inside the upper cylinder, a lower rod body is slidably connected inside the upper cylinder, an impact head is fixedly connected to the bottom end of the lower rod body, the weights of the plurality of impact heads are different, the shape of the impact head is conical, truncated cone or hemispherical, a sliding groove is provided on the upper side wall of the lower rod body, an L-shaped limit block is slidably connected inside the sliding groove, a second spring is fixedly connected to the inner side wall of the sliding groove, and the other end of the second spring is fixedly connected to the inner side wall of the limit block.

[0013] Preferably, a hydraulic rod is fixedly connected to the surface of the top plate, a T-shaped connecting rod is fixedly connected to the driving end of the hydraulic rod, a fixed shell is slidably connected to the outer wall of the T-shaped connecting rod, a pressure sensor is fixedly connected to the upper surface of the fixed shell, and an electromagnet is fixedly connected to the lower surface of the fixed shell.

[0014] Preferably, the lower rod body is made of ferromagnetic material, a receiving groove is provided on the top of the lower rod body, and an adsorption channel is provided between the receiving groove and the sliding groove.

[0015] Preferably, the reflection detection assembly includes a mounting frame and a detection platform, the outer wall of the mounting frame is fixedly connected to the inner wall of the detection chamber, the lower surface of the mounting frame is fixedly connected to a third electric push rod, the driving end of the third electric push rod is fixedly provided with a retroreflection coefficient measuring instrument, and the outer wall of the detection platform is fixedly connected to the inner wall of the detection chamber.

[0016] Working principle: During the inspection, the reflective film is attached to the inspection plate, and then the inspection plate is inserted into the fixed seat along the slot. The two small gears are driven to rotate by rotating the large gear. When the small gear rotates, it rotates and descends along the threaded column, so that the pressure plate is pressed down on the reflective film, thereby clamping and fixing the reflective film and the inspection plate to prevent the reflective film from falling off during the test. Then, the clamping arm is pushed open and the fixed seat is placed between the two clamping arms and the limit pin is aligned with the limit slot. After releasing the clamping arm, the clamping arm is pressed against the fixed seat through the elastic force of the first spring, and the limit pin is slid outward and inserted into the inside of the limit slot through the magnetic attraction of the iron block and the magnetic ring, thereby connecting the diaphragm to the clamping arm. The operation of the electric slide can drive the second electric push rod, the connecting plate, the clamping arm and the diaphragm to move, so that the diaphragm is transported to the temperature detection box, the impact detection component or the reflective detection component for single or multiple comprehensive performance tests.

[0017] When the reflective film is subjected to high temperature or low temperature test, the first electric push rod is extended to drive the box door down to open the high temperature test box or low temperature test box, and the diaphragm is moved to the corresponding high temperature test box or low temperature test box by the electric slide. The second electric push rod is extended to drive the diaphragm to move to the bottom of the high temperature test box or low temperature test box, and one end of the diaphragm is against the baffle and fits the lower surface of the limit protrusion. At this time, the inclined surface of the clamping arm will be inserted under the counterweight positioning seat and lift the counterweight positioning seat, and the box door will rise by the contraction of the first electric push rod. The diaphragm is automatically placed on the counterweight orifice plate after the second electric push rod contracts, causing the clamping arm to leave the counterweight orifice plate. At this time, the counterweight positioning seat drives the positioning column to press down and insert it into the positioning groove, connecting the diaphragm with the counterweight orifice plate to avoid diaphragm displacement during detection. Finally, the first electric push rod contracts and drives the box door to rise until the temperature detection box is closed, thereby performing a high temperature or low temperature resistance test on the diaphragm.

[0018] After the test is completed, the box door is opened again by retracting the first electric push rod, and the clamping arm is driven to be inserted on both sides of the diaphragm by extending the second electric push rod. The limit pin is inserted into the limit groove again through the magnetic attraction of the iron block and the magnetic ring, thereby realizing the automatic connection between the clamping arm and the diaphragm. The diaphragm is then transported to the bottom of the reflective detection component by the electric slide to detect the performance changes of the reflective film after high or low temperature.

[0019] When the reflective film is used for impact resistance, the diaphragm is transported to the bottom of the base plate through the cooperation of the clamping assembly and the electric slide. The diaphragm is supported by the base plate to reduce the impact on the diaphragm during the test. The driver drives the rotating table to rotate, and the impact head directly above the diaphragm can be replaced to improve the flexibility of the test. Then the hydraulic rod is extended to insert the electromagnet into the receiving slot and then the electromagnet is turned on. While adsorbing the lower rod body, the limit block is adsorbed and moved into the sliding slot. The hydraulic rod is extended and retracted again to drive the impact head to descend and press down the reflective film for continuous extrusion impact test, or the electromagnet is closed after the top of the lower rod body is driven to descend to the bottom of the limit cavity, so that the impact head falls freely for testing. Impact test, and the impact force can be adjusted by adjusting the falling height of the impact head, thereby realizing switching between two test modes and realizing diversified impact resistance tests on the reflective film. During the test, the impact head tests the reflective film at the impact port, thereby avoiding impact on the diaphragm, so that the diaphragm can be reused to save costs. After the test is completed, the lower rod body is adsorbed again by the electromagnet, so that the top end of the lower rod body moves to the top of the limit cavity and the electromagnet is immediately powered off. At this time, the limit block extends out of the sliding groove through the elastic force of the second spring and resists the bottom surface of the limit cavity, thereby realizing automatic storage of the lower rod body, which is convenient for rotating and replacing the impact head and removing or moving the diaphragm in.

[0020] Through the cooperation of the second electric push rod, the electric slide and the clamping assembly, the device can transport the diaphragm to the temperature detection box, the impact detection assembly or the reflective detection assembly for unidirectional or comprehensive testing, without the need for manual handling, thereby speeding up the detection efficiency. The influence of high and low temperatures on the reflective film can be detected by the high-temperature test box and the low-temperature test box, the influence of impact on the reflective film can be detected by the impact assembly, and the reflective effect of the reflective film can be detected by the reflective detection assembly, thereby realizing a comprehensive performance test of the reflective film.

[0021] The present invention provides a comprehensive performance testing device for reflective film, which has the following beneficial effects:

[0022] 1. The present invention fixes the reflective film through a diaphragm, and the detection port on the surface of the diaphragm corresponds to the descending position of the impact head, thereby preventing the impact head from causing damage to the diaphragm during the impact test, extending the service life of the diaphragm, and realizing reuse to save costs.

[0023] 2. The present invention can perform high and low temperature tests on the reflective film respectively through a high temperature test chamber and a low temperature test chamber, so as to evaluate the performance changes of the reflective film under different temperature environments, and the film can be automatically clamped and placed through the clamping assembly, and with the cooperation of the electric slide, the film can be transported to different test assemblies for testing, without the need for manual handling operations, thereby realizing automated testing.

[0024] 3. The present invention performs impact test on the reflective film through the impact component to detect the impact resistance of the reflective film, and the impact component provides two test modes: free fall impact test and continuous extrusion impact test, which increases the diversity of the impact resistance test of the reflective film.

[0025] 4. The present invention realizes high and low temperature, impact resistance and retroreflection coefficient tests by integrating a temperature detection box, an impact detection component and a reflective detection component, and can perform single test and multiple comprehensive tests on the reflective film. By adopting detection plates of different materials, the adhesion test of the reflective film can be performed to realize the comprehensive performance test of the reflective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A perspective view of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the detection chamber of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the unfolded structure of the counterweight orifice plate and the diaphragm of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the clamping arm and the connecting plate of the present invention;

[0031] Figure 6 An exploded view of the diaphragm of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the impact test assembly and the reflective detection assembly of the present invention;

[0033] Figure 8 It is a schematic cross-sectional view of the upper cylinder of the present invention;

[0034] Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle;

[0035] Fig.10 It is a partial cross-sectional schematic diagram of the lower rod body of the present invention.

[0036] Among them, 1. detection room; 2. temperature detection box; 3. impact detection component; 301. top plate; 302. bottom plate; 303. impact port; 304. driver; 305. rotating table; 307. upper cylinder; 308. lower rod; 309. impact head; 311. sliding groove; 312. limit block; 313. second spring; 314. hydraulic rod; 315. T-shaped connecting rod; 316. fixed shell; 317. electromagnet; 318. limit cavity; 4. reflection detection component; 41. mounting frame; 42. third electric push rod; 43. retroreflection coefficient measuring instrument; 44. detection table; 5. lifting frame; 6. first electric push rod; 7. box door; 8. clamping component; 801. connecting plate; 802. telescopic Support rod; 803, first spring; 804, slide groove; 805, clamping arm; 806, storage groove; 807, limit pin; 808, magnetic ring; 809, tension spring; 810, stripping rack; 811, counterweight hole plate; 812, telescopic limit rod; 813, baffle; 814, inclined block; 815, L-shaped bracket; 816, counterweight positioning seat; 817, positioning column; 10, electric slide; 11, second electric push rod; 13, diaphragm; 131, fixed seat; 132, slot; 133, detection plate; 134, pressure plate; 135, threaded column; 136, small gear; 137, large gear; 14, detection port; 15, limit groove; 16, positioning groove; 17, pressure sensor; 18, limit protrusion. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example:

[0039] Please see attached Figure 1 -Attached Figure 3The embodiment of the present invention provides a comprehensive performance testing device for a reflective film, comprising a testing chamber 1, wherein two temperature detection boxes 2, an impact detection assembly 3 and a reflective detection assembly 4 are sequentially arranged on the rear side of the inner wall of the testing chamber 1 from left to right, the temperature detection box 2 comprises a high temperature test box and a low temperature test box, the outer walls of the high temperature test box and the low temperature test box are fixedly connected to the inner wall of the testing chamber 1, the upper side walls of the two temperature detection boxes 2 are respectively slidably connected with a U-shaped lifting frame 5, a first electric push rod 6 is fixedly connected at the center of the upper surface of the lifting frame 5, the driving end of the first electric push rod 6 is fixedly connected to the upper surface of the temperature detection box 2, and the bottom end of the lifting frame 5 A box door 7 is fixedly connected, an electric slide 10 is fixedly connected to the front side of the inner wall of the detection chamber 1, a second electric push rod 11 is fixedly connected to the outer wall of the slider of the electric slide 10, a clamping assembly 8 is fixedly connected to the driving end of the second electric push rod 11, a diaphragm 13 is arranged on the inner side of the clamping assembly 8, a detection port 14 is opened on the surface of the diaphragm 13, the clamping assembly 8 is used for clamping and conveying the diaphragm 13, an industrial central control machine is fixedly connected to the upper surface of the detection chamber 1, the industrial central control machine is electrically connected to the first electric push rod 6, the second electric push rod 11, the electric slide 10, the high temperature test chamber and the low temperature test chamber, the industrial central control machine belongs to the prior art and is not described in detail here.

[0040] Specifically, the lifting frame 5 is used to connect the first electric push rod 6 and the box door 7, the first electric push rod 6 is used to control the lifting of the box door 7, so as to open or close the temperature detection box 2, the electric slide 10 is used to drive the clamping assembly 8 to move horizontally in the left and right directions, the second electric push rod 11 is used to drive the diaphragm 13 to move in the front and back directions, the clamping assembly 8 is used to clamp the diaphragm 13, the diaphragm 13 is used to fix the reflective film, the detection port 14 is used to allow the impact head 309 to pass through during the impact resistance test to avoid direct contact between the impact head 309 and the diaphragm 13 and cause damage, the high temperature test box and the low temperature test box are used to test the reflective film in high temperature or low temperature environments respectively, the impact detection assembly 3 is used to detect the impact resistance of the reflective film, the reflective detection assembly 4 is used to detect the retroreflection coefficient of the reflective film, and multiple comprehensive performance tests are realized. The detection plate 133 in the diaphragm 13 can be made of various types according to different materials, such as metal, plastic, concrete, etc. By selecting the detection plate 133 of the corresponding material, the adhesion of the reflective film can be tested in subsequent tests.

[0041] Please see attached Figure 3 -Attached Figure 6The clamping assembly 8 includes a connecting plate 801, the outer wall of the connecting plate 801 is fixedly connected to the driving end of the second electric push rod 11, the two sides of the outer wall of the connecting plate 801 are respectively fixedly connected with telescopic support rods 802, the other end of the telescopic support rod 802 is fixedly connected to the outer wall of the slider of the electric slide 10, and the two sides of the inner wall of the connecting plate 801 are respectively provided with sliding grooves 804, the inner wall of the sliding groove 804 is slidably connected with a clamping arm 805, the inner side wall of the sliding groove 804 is fixedly connected with a first spring 803, the other end of the first spring 803 is fixedly connected to the outer wall of the clamping arm 805, and the diaphragm 13 is arranged on the two clamping arms 805, two receiving grooves 806 are provided on the side of the clamping arm 805 facing the diaphragm 13, and the two receiving grooves 806 are arranged in a high and low cross pattern. The internal sliding connection of the receiving groove 806 is connected to a limit pin 807, and the outer wall of the limit pin 807 is fixedly connected to a magnetic ring 808. The inner wall of the receiving groove 806 is fixedly connected to a tension spring 809, and the other end of the tension spring 809 is fixedly connected to the outer wall of the limit pin 807. The outer wall of the clamping arm 805 is fixedly connected to an L-shaped stripping frame 810. The left and right outer walls of the diaphragm 13 are respectively provided with limit grooves 15 in a high and low cross pattern, and the inner part of the limit groove 15 is embedded with an iron block.

[0042] Specifically, the telescopic support rod 802 is used to support the connecting plate 801 when it is synchronously extended and retracted with the second electric push rod 11, the slide groove 804 is used to be slidably connected with the clamping arm 805, the first spring 803 is used to apply elastic pressure to the clamping arm 805 so that the clamping arm 805 is against the two sides of the diaphragm 13, and the tension spring 809 is used to drive the limit pin 807 to be stored in the storage groove 806, so that the diaphragm 13 is inserted and placed along the inner side wall of the clamping arm 805, and the diaphragm 13 is inserted and placed on the inner side wall of the clamping arm 805. When 13 is placed against the connecting plate 801 in the clamping arm 805, the receiving groove 806 is automatically aligned with the limiting groove 15, and the limiting pin 807 is driven to extend and insert into the limiting groove 15 through the magnetic force of the iron block and the magnetic ring 808, thereby locking the clamping arm 805 and the diaphragm 13, and the receiving groove 806 and the limiting groove 15 are arranged in a cross-height manner, so that when the clamping arm 805 is moved out, the limiting pin 807 at a higher position is prevented from being inserted into the limiting groove 15 at a lower position to cause accidental locking.

[0043] Please see attached Figure 5 -Attached Figure 6The diaphragm 13 includes a U-shaped fixing seat 131, and slots 132 are respectively provided on the inner walls of the left and right sides of the fixing seat 131. A detection plate 133 is inserted into the two slots 132. An annular pressing plate 134 is provided above the detection plate 133. The inner diameter of the pressing plate 134 is larger than the diameter of the detection port 14. The left and right sides of the pressing plate 134 are respectively penetrated by threaded columns 135. The bottom end of the threaded column 135 is rotatably connected to the upper surface of the fixing seat 131. The outer wall of the threaded column 135 A small gear 136 is threadedly connected, and the lower surface of the small gear 136 is rotatably connected to the upper surface of the pressure plate 134. The tooth ends of the two small gears 136 are meshed and connected with a large gear 137. The bottom end of the large gear 137 is rotatably connected to the upper surface of the pressure plate 134. Positioning grooves 16 are respectively provided on both sides of the upper surface of the fixed seat 131. The thread directions of the two threaded columns 135 are the same. A handle is fixedly connected to the upper surface of the large gear 137, and the handle is used to facilitate the tester to rotate the large gear 137.

[0044] Specifically, the center point of the reflective film is aligned with the center point of the detection port 14 and placed on the detection plate 133. The reflective film in the detection port 14 area is used for impact resistance test, and the reflective film between the pressure plate 134 and the detection port 14 is used for adhesion test. The detection plate 133 is inserted into the innermost part of the slot 132, and then the large gear 137 is rotated downward. The large gear 137 drives the two small gears 136 to rotate in the same direction. The small gear 136 rotates and descends along the threaded column 135, thereby driving the pressure plate 134 to press down on the reflective film as a whole, and by pressing against the fixing seat 131, the reflective film and the detection plate 133 are quickly fixed, and the large gear 137 is rotated in the opposite direction to make the pressure plate 134 rise, so that the reflective film after detection can be taken out, and the reflective film is fixed by the diaphragm 13 to prevent the reflective film from falling off during detection.

[0045] Please see attached Figure 4 The clamping assembly 8 also includes two counterweight hole plates 811 and four inclined blocks 814. The counterweight hole plate 811 is arranged above the box door 7. Telescopic limit rods 812 are fixedly connected to both sides of the upper surface of the counterweight hole plate 811. The top of the telescopic limit rod 812 is fixedly connected to the inner top wall of the temperature detection box 2. The upper surface of the counterweight hole plate 811 is fixedly connected to a baffle 813. The outer wall of the baffle 813 protrudes outward to form a limiting protrusion 18. Openings are respectively opened on both sides of the counterweight hole plate 811. The inclined block 814 is located below the opening. The lower surface of the inclined block 814 is fixedly connected to the upper surface of the box door 7.

[0046] Specifically, the counterweight orifice plate 811 is used to place the diaphragm 13, and the telescopic limit rod 812 is used to lower the height of the counterweight orifice plate 811, so that when the counterweight orifice plate 811 moves down to the bottom, its upper surface and the lower surface of the diaphragm 13 remain on the same horizontal plane, and the baffle 813 is used to limit the diaphragm 13 when it is placed on the counterweight orifice plate 811, and the limit protrusion 18 is used to resist the upper surface of the diaphragm 13 to prevent the inclined block 814 from pushing the material off when moving upward. When the diaphragm 13 is forced to rise when the bracket 810 is raised, the counterweight orifice plate 811 offsets the thrust applied by the inclined block 814 when it rises through its own gravity, so as to prevent the counterweight orifice plate 811 from being pushed up by the inclined block 814 and causing the clamping arm 805 to be unable to normally separate from the diaphragm 13. After the diaphragm 13 is moved to the counterweight orifice plate 811 against the baffle 813, the box door 7 is driven to rise by the first electric push rod 6 until the upper surface of the box door 7 is in contact with the lower surface of the counterweight orifice plate 811. The inclined block 814 is inserted into the stripping frame 810 through the opening and pushes the stripping frame 810 to move outward, thereby driving the clamping arm 805 to slide open, so that the limit pin 807 exits the limit slot 15, and then the second electric push rod 11 contracts to drive the clamping arm 805 to leave the top of the counterweight hole plate 811, and the diaphragm 13 automatically stays on the counterweight hole plate 811. After the box door 7 moves upward to close the temperature detection box 2, the reflective film on the counterweight hole plate 811 can be tested under high or low temperature conditions. After the detection is completed, the box door 7 drops to the bottom again, and the second electric push rod 11 is extended to make the clamping arm 805 inserted into both sides of the diaphragm 13 again. At this time, the magnetic force of the magnetic ring 808 and the iron block makes the limit pin 807 automatically inserted into the limit slot 15, so that the diaphragm 13 and the clamping arm 805 are automatically connected again, so that they can continue to be transported, which is convenient for subsequent testing operations.

[0047] Please see attached Figure 4 , L-shaped brackets 815 are fixedly connected to both sides of the upper surface of the counterweight orifice plate 811, and the inner wall of the L-shaped bracket 815 is slidably connected to the counterweight positioning seat 816. When the counterweight positioning seat 816 slides to the bottom, a gap is left between it and the upper surface of the counterweight orifice plate 811 for the clamping arm 805 to pass through. A positioning column 817 is fixedly connected to the lower surface of the counterweight positioning seat 816. An inclined surface is provided at the end of the clamping arm 805 away from the connecting plate 801, and the inclined surface is used for the clamping arm 805 to pass through the gap between the counterweight positioning seat 816 and the counterweight orifice plate 811 to lift the counterweight positioning seat 816. The length of the clamping arm 805 is longer than the length of the diaphragm 13, so that the clamping arm 805 can lift the counterweight positioning seat 816 before the positioning groove 16 moves to the positioning column 817.

[0048] Specifically, when the clamping arm 805 moves to above the counterweight hole plate 811, it lifts the counterweight positioning seat 816, and after the clamping arm 805 leaves, the counterweight positioning seat 816 uses its own gravity to insert the positioning column 817 into the positioning groove 16 below, thereby fixing the diaphragm 13 on the counterweight hole plate 811, avoiding the horizontal deviation of the diaphragm 13 caused by the airflow on the inner wall of the temperature detection box 2 during the test, which causes the subsequent clamping arm 805 to be unable to accurately align with the diaphragm 13 for automatic connection.

[0049] Please see attached Figure 7 -Attached Fig.10 The impact detection assembly 3 includes a top plate 301 and a bottom plate 302 arranged from top to bottom. The outer walls of the top plate 301 and the bottom plate 302 are fixedly connected to the inner wall of the detection chamber 1. The surface of the bottom plate 302 is provided with an impact port 303. The lower surface of the top plate 301 is fixedly connected with a driver 304. The driving end of the driver 304 is fixedly connected with a rotating table 305. The surface of the rotating table 305 is provided with a plurality of through holes distributed in an annular shape. The interior of the through hole is fixedly connected with an upper cylinder 307. The interior of the upper cylinder 307 is provided with a limited position cavity 318. The interior of the upper cylinder 307 is slidably connected with a lower rod 308. The bottom end of the lower rod 308 is fixedly connected with an impact head 309. The weights are different. The impact head 309 is in the shape of a cone, a truncated cone or a hemispherical shape. A sliding groove 311 is provided on the upper side wall of the lower rod body 308. The sliding groove 311 is internally slidably connected with an L-shaped limit block 312. The inner side wall of the sliding groove 311 is fixedly connected with a second spring 313. The other end of the second spring 313 is fixedly connected to the inner side wall of the limit block 312. When the diaphragm 13 is pressed against and placed on the bottom plate 302, the impact port 303 and the detection port 14 are on the same vertical line. An annular rubber pad is fixedly provided on the bottom wall of the limit cavity 318. The rubber pad is used to cushion the impact force of the lower rod body 308 on the upper cylinder 307 when it falls freely. The industrial central control machine is electrically connected to the driver 304.

[0050] Specifically, in the initial state, the limit block 312 extends out of the sliding groove 311 at the bottom end through the elastic force of the second spring 313 to resist the lower surface of the limit cavity 318, thereby storing the lower rod body 308 into the interior of the upper cylinder 307, and raising the height of the impact head 309, so that the diaphragm 13 can be placed on the bottom plate 302. The center point of one of the multiple through holes is coaxially arranged with the center point of the impact port 303, and the rotating table 305 is driven to rotate by the driver 304. The rotation of the rotating table 305 is used to adjust the impact head 309 directly above the impact port 303, thereby achieving the effect of quickly replacing the impact head 309. The number of through holes is set to four, and the driver 304 only needs to rotate 90° to switch the impact head 309.

[0051] Please see attached Figure 8 -Attached Fig. 9A hydraulic rod 314 is fixedly connected to the surface of the top plate 301, a T-shaped connecting rod 315 is fixedly connected to the driving end of the hydraulic rod 314, a fixed shell 316 is slidably connected to the outer wall of the T-shaped connecting rod 315, a pressure sensor 17 is fixedly connected to the upper surface of the fixed shell 316, an electromagnet 317 is fixedly connected to the lower surface of the fixed shell 316, the lower rod body 308 is made of ferromagnetic material, a receiving groove is provided on the top of the lower rod body 308, an adsorption channel is provided between the receiving groove and the sliding groove 311, the center point of the hydraulic rod 314 is coaxially arranged with the center point of the impact port 303, and the industrial central control machine is electrically connected to the hydraulic rod 314.

[0052] Specifically, the T-shaped connecting rod 315 is used to connect the driving end of the hydraulic rod 314 and the fixed housing 316. In the initial state, the fixed housing 316 is affected by gravity and maintains a certain gap with the driving end of the hydraulic rod 314 to prevent the pressure sensor 17 from being squeezed. When the T-shaped connecting rod 315 is against the reflective film, it will move toward the inside of the fixed housing 316, so that the driving end of the hydraulic rod 314 acts on the pressure sensor 17. After the impact head 309 is switched, the hydraulic rod 314 is extended to make its driving end and the electromagnet 317 inserted into the upper cylinder 307 directly below until The electromagnet 317 is inserted into the receiving groove. When the electromagnet 317 is running, it can be adsorbed and connected to the lower rod body 308. At the same time, the magnetic force adsorbs the limit block 312 to the inside of the storage groove 806 through the adsorption channel, so that the lower rod body 308 is not blocked when it descends. The hydraulic rod 314 is retracted again so that the impact force can impact the reflective film below for testing. During the test, the driving end of the hydraulic rod 314 will resist the pressure sensor 17, so that the pressure on the reflective film can be detected and intuitively displayed through the industrial central control machine. The industrial central control machine is electrically connected to the electromagnet 317.

[0053] Please see attached Figure 7 The reflection detection component 4 includes a mounting frame 41 and a detection table 44. The outer wall of the mounting frame 41 is fixedly connected to the inner wall of the detection chamber 1. The lower surface of the mounting frame 41 is fixedly connected to a third electric push rod 42. The driving end of the third electric push rod 42 is fixedly provided with a retroreflection coefficient measuring instrument 43. The outer wall of the detection table 44 is fixedly connected to the inner wall of the detection chamber 1. The retroreflection coefficient measuring instrument 43 belongs to the prior art. A portable detection equipment with model WY-NS-160 can be selected. The specific usage and calibration method are not described here. The detection table 44 is located below the mounting frame 41. The upper surface of the detection table 44 is maintained at the same horizontal plane as the lower surface of the diaphragm 13. The industrial central control machine is electrically connected to the third electric push rod 42 and the retroreflection coefficient measuring instrument 43.

[0054] Specifically, the film 13 is transported to the detection table 44 by the operation of the electric slide 10, and the third electric push rod 42 is operated to drive the retroreflection coefficient measuring instrument 43 to descend to detect the retroreflection coefficient of the reflective film. The measuring distance is maintained at 15-30cm, and strong light interference needs to be avoided near the device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A comprehensive performance testing device for a reflective film, comprising a testing chamber (1), characterized in that: Two temperature detection boxes (2), an impact detection assembly (3) and a reflection detection assembly (4) are arranged in sequence from left to right on the rear side of the inner wall of the detection chamber (1); the temperature detection box (2) comprises a high temperature test box and a low temperature test box; the outer walls of the high temperature test box and the low temperature test box are fixedly connected to the inner wall of the detection chamber (1); the upper side walls of the two temperature detection boxes (2) are respectively slidably connected with a U-shaped lifting frame (5); the center of the upper surface of the lifting frame (5) is fixedly connected with a first electric push rod (6); the driving end of the first electric push rod (6) is in contact with the temperature sensor; The upper surface of the detection box (2) is fixedly connected, the bottom end of the lifting frame (5) is fixedly connected with a box door (7), the front side of the inner wall of the detection room (1) is fixedly connected with an electric slide (10), the outer wall of the slider of the electric slide (10) is fixedly connected with a second electric push rod (11), the driving end of the second electric push rod (11) is fixedly connected with a clamping assembly (8), a diaphragm (13) is arranged on the inner side of the clamping assembly (8), and a detection port (14) is opened on the surface of the diaphragm (13), and the clamping assembly (8) is used to clamp and convey the diaphragm (13).

2. A comprehensive performance testing device for reflective film according to claim 1, characterized in that: The clamping assembly (8) includes a connecting plate (801), the outer wall of the connecting plate (801) is fixedly connected to the driving end of the second electric push rod (11), the two sides of the outer wall of the connecting plate (801) are respectively fixedly connected with telescopic support rods (802), the other end of the telescopic support rod (802) is fixedly connected to the outer wall of the slider of the electric slide (10), the two sides of the inner wall of the connecting plate (801) are respectively provided with sliding grooves (804), the inner wall of the sliding groove (804) is slidably connected with a clamping arm (805), the inner side wall of the sliding groove (804) is fixedly connected with a first spring (803), the other end of the first spring (803) is fixedly connected to the outer wall of the clamping arm (805), and the diaphragm (13) is arranged between the two clamping arms (805).

3. The comprehensive performance testing device for reflective film according to claim 2, characterized in that: The clamping arm (805) has two receiving grooves (806) on one side facing the diaphragm (13), and the two receiving grooves (806) are arranged in a high and low cross pattern. The interior of the receiving groove (806) is slidably connected to a limit pin (807), and the outer wall of the limit pin (807) is fixedly connected to a magnetic ring (808). The inner wall of the receiving groove (806) is fixedly connected to a tension spring (809), and the other end of the tension spring (809) is fixedly connected to the outer wall of the limit pin (807). The outer wall of the clamping arm (805) is fixedly connected to an L-shaped stripping frame (810). The left and right outer walls of the diaphragm (13) are respectively provided with limit grooves (15) in a high and low cross pattern, and an iron block is embedded in the interior of the limit groove (15).

4. The comprehensive performance testing device for reflective film according to claim 1, characterized in that: The diaphragm (13) comprises a U-shaped fixing seat (131), and the inner walls on the left and right sides of the fixing seat (131) are respectively provided with slots (132), and the insides of the two slots (132) are commonly plugged with a detection plate (133), and an annular pressing plate (134) is arranged above the detection plate (133), and the inner diameter of the pressing plate (134) is larger than the diameter of the detection port (14), and the left and right sides of the pressing plate (134) are respectively penetrated by threaded columns (135), and the threaded columns (13 5) is rotatably connected to the upper surface of the fixing seat (131), the outer wall of the threaded column (135) is threadedly connected with a small gear (136), the lower surface of the small gear (136) is rotatably connected to the upper surface of the pressure plate (134), the tooth ends of the two small gears (136) are meshed with a large gear (137), the bottom end of the large gear (137) is rotatably connected to the upper surface of the pressure plate (134), and positioning grooves (16) are respectively provided on both sides of the upper surface of the fixing seat (131).

5. The comprehensive performance testing device for reflective film according to claim 2, characterized in that: The clamping assembly (8) further comprises two counterweight orifice plates (811) and four inclined blocks (814); the counterweight orifice plates (811) are arranged above the box door (7); telescopic limit rods (812) are fixedly connected to the two sides of the upper surface of the counterweight orifice plates (811); the top end of the telescopic limit rods (812) is fixedly connected to the inner top wall of the temperature detection box (2); the upper surface of the counterweight orifice plates (811) is fixedly connected to a baffle plate (813); the outer wall of the baffle plate (813) protrudes outward to form a limiting protrusion (18); openings are respectively provided on the two sides of the counterweight orifice plates (811); the inclined blocks (814) are located below the openings; and the lower surface of the inclined blocks (814) is fixedly connected to the upper surface of the box door (7).

6. A comprehensive performance testing device for reflective film according to claim 5, characterized in that: L-shaped brackets (815) are fixedly connected to both sides of the upper surface of the counterweight hole plate (811), the inner side wall of the L-shaped bracket (815) is slidably connected to a counterweight positioning seat (816), and the lower surface of the counterweight positioning seat (816) is fixedly connected to a positioning column (817).

7. The comprehensive performance testing device for reflective film according to claim 1, characterized in that: The impact detection assembly (3) comprises a top plate (301) and a bottom plate (302) arranged from top to bottom, the outer walls of the top plate (301) and the bottom plate (302) are fixedly connected to the inner wall of the detection chamber (1), the surface of the bottom plate (302) is provided with an impact opening (303), the lower surface of the top plate (301) is fixedly connected to a driver (304), the driving end of the driver (304) is fixedly connected to a rotating table (305), the surface of the rotating table (305) is provided with a plurality of through holes distributed in an annular shape, the interior of the through holes is fixedly connected to an upper cylinder (307), and the interior of the upper cylinder (307) is provided with a limiting cavity (31 8), the upper cylinder (307) is internally slidably connected to a lower rod (308), the bottom end of the lower rod (308) is fixedly connected to an impact head (309), the weights of the impact heads (309) are different, the shape of the impact head (309) can be conical, truncated or hemispherical, the upper side wall of the lower rod (308) is provided with a sliding groove (311), the interior of the sliding groove (311) is slidably connected to an L-shaped limit block (312), the inner side wall of the sliding groove (311) is fixedly connected to a second spring (313), and the other end of the second spring (313) is fixedly connected to the inner side wall of the limit block (312).

8. The comprehensive performance testing device for reflective film according to claim 7, characterized in that: A hydraulic rod (314) is fixedly connected to the surface of the top plate (301), a driving end of the hydraulic rod (314) is fixedly connected to a T-shaped connecting rod (315), an outer wall of the T-shaped connecting rod (315) is slidably connected to a fixed shell (316), an upper surface of the fixed shell (316) is fixedly connected to a pressure sensor (17), and a lower surface of the fixed shell (316) is fixedly connected to an electromagnet (317).

9. The comprehensive performance testing device for reflective film according to claim 7, characterized in that: The lower rod body (308) is made of ferromagnetic material, a receiving groove is provided on the top of the lower rod body (308), and an adsorption channel is provided between the receiving groove and the sliding groove (311).

10. The comprehensive performance testing device for reflective film according to claim 1, characterized in that: The reflective light detection assembly (4) comprises a mounting frame (41) and a detection platform (44); the outer wall of the mounting frame (41) is fixedly connected to the inner wall of the detection chamber (1); a third electric push rod (42) is fixedly connected to the lower surface of the mounting frame (41); a retroreflection coefficient measuring instrument (43) is fixedly arranged at the driving end of the third electric push rod (42); and the outer wall of the detection platform (44) is fixedly connected to the inner wall of the detection chamber (1).

Images