Light transmission performance testing device and testing method for black-out cloth production

Abstract

The invention relates to the technical field of black-out cloth production, in particular to a light transmittance performance testing device and method for black-out cloth production, and the light transmittance performance testing device comprises a testing box which is internally provided with a supporting plate for placing black-out cloth. According to the light transmission performance testing device and testing method for black-out cloth production, a semi-gear drives a rectangular frame to reciprocate along a support along two groups of tooth edges, a guide rod drives a supporting plate to transversely move synchronously, and the two ends of a moving column on a connecting seat abut against the side walls of the two sides of a testing box for alternate extrusion; compared with an existing fixed position test, the rectangular frame is matched with the half gear to drive the supporting plate to move transversely, the inclined edges are matched with the vertical pins to drive the supporting plate to move longitudinally, and therefore different positions of the supporting plate can be tested by a tester, and the testing efficiency is improved. And the condition of light transmission difference of a single piece of cloth is avoided, so that more comprehensive test on the cloth is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of blackout cloth production, and in particular to a light transmission performance testing device and a testing method for blackout cloth production. Background Art

[0002] Blackout fabric is a functional auxiliary fabric used to block sunlight and sunshine. It is usually used together with other fabrics to cover objects to avoid contact with strong light. It has the effect of blocking strong light and ultraviolet rays. Therefore, the light transmittance test of this fabric is required after it is produced.

[0003] Fabric light transmittance testing mainly involves measuring the degree to which fabric allows light to pass through, which is usually measured by the transmittance index, that is, the proportion of light that passes through the fabric under certain conditions. In order to conduct this test, measuring instruments such as transmittance meters and spectrometers can be used. When conducting the test, you first need to prepare the test sample, and then place the sample on the transmittance meter for measurement. The transmittance meter compares the light transmittance performance of the sample and the reference object to obtain the transmittance of the sample.

[0004] The existing patent (publication number: CN118883448A) discloses a light transmittance detection device for textile fabrics, including a workbench, a light shield is fixedly installed on the upper surface of the workbench, a light detection component is arranged on the inner rear end of the light shield, a slide is connected to the inner front end of the light shield by setting a driving member, an angle plate is fixedly installed on one side of the slide, and an arc groove is opened on the inner side of the angle plate, a rotating shaft is fixedly installed on one side of the angle plate, an adjustment seat is rotatably mounted on the outer side of the rotating shaft, and multiple groups of cloth clamping components are arranged on the outer side of the adjustment seat, a fixed rod is fixedly installed on the upper side of the angle plate away from the rotating shaft, a clamping block is connected to the inner side of the fixed rod through a reciprocating member, and a positioning block is fixedly installed on one side of the clamping block. In the above-mentioned prior art, the fabric and the tester are fixedly arranged, and can only be tested for a single position. The situation where there is a difference in light transmittance of a single piece of fabric cannot be detected, and the disassembly and assembly of the fabric requires manual operation, which is poor in convenience.

[0005] In view of this, we propose a light transmittance testing device and a testing method for blackout cloth production. Summary of the invention

[0006] The purpose of the present invention is to provide a light transmission performance test device and test method for blackout cloth production, so as to solve the problems mentioned in the above background technology that the cloth and the tester in the prior art are fixedly arranged, and can only be tested at a single position, and the situation where there is a difference in light transmission of a single piece of cloth cannot be detected, and the disassembly and assembly of the cloth requires manual operation, which is poor in convenience. To achieve the above purpose, the present invention provides the following technical solutions: A light transmission performance test device for blackout cloth production, comprising a test box, a tray for placing the blackout cloth is arranged in the test box, and a tester matched with the tray is fixedly arranged on the inner wall of the test box, and a shifter is arranged on the test box and the tray.

[0007] The shifter includes a bracket fixedly arranged on the inner bottom of the test box, and a rectangular frame is slidably connected to the bracket. A motor is fixedly arranged on the inner bottom of the test box, and a half gear is fixedly installed on the rotating shaft of the motor. Two sets of tooth edges are opened on the inner side of the rectangular frame, and the two sets of tooth edges are symmetrically distributed on both sides of the half gear for alternate meshing.

[0008] The back of the rectangular frame is fixedly connected with a connecting seat, and both ends of the connecting seat are provided with through holes. The supporting plate is fixedly connected with two guide rods, and the two guide rods are movably inserted into the through holes on both sides.

[0009] A transverse groove is provided inside the connecting seat, and the two ends of the transverse groove pass through the connecting seat and are connected to the outside. The two through holes are connected to the transverse groove, and a movable column is slidably connected in the transverse groove. A spring is arranged in the transverse groove, and the two ends of the spring are respectively connected to the movable column and the transverse groove.

[0010] Both ends of the movable column are provided with vertical pins, and the top surfaces of the two guide rods are provided with oblique edges matched with the vertical pins on the same side, and the oblique edges on both sides are staggered.

[0011] The test box, the connecting seat, the supporting plate and the guide rod are provided with a cloth unloading assembly.

[0012] Preferably, the cloth unloading assembly includes an exhaust duct arranged at the bottom of the test box, and an air flow drawer is fixedly installed on the exhaust duct, the exhaust duct is connected to the air flow drawer, and the top of the exhaust duct and the end away from the exhaust duct are set as open structures.

[0013] A cloth curtain is arranged between the top opening of the air flow drawer and the supporting plate, and a suction port connected with the air flow drawer is opened in the middle of the supporting plate.

[0014] The test box and the support plate are provided with a cloth loading assembly.

[0015] Preferably, the cloth loading assembly includes a cloth box fixedly mounted on the top wall of the test box, and the top of the cloth box passes through the test box, the bottom of the cloth box is set as a closed structure, and a notch is provided at the bottom of the cloth box, a roller is rotatably connected in the notch, and an annular tooth surface is provided on the shaft of the roller.

[0016] A push rod of L-shaped structure is fixedly arranged on the side of the support plate, and a plurality of grooves are opened at the bottom of the upper rod body of the push rod, in which the bevel teeth matching with the tooth surface are slidably connected, and a top spring is arranged in the groove, and the top spring pushes the bevel teeth to move downward.

[0017] An inclined platform is fixedly arranged inside the test box, and the inclined platforms are arranged in two groups, two of which are arranged in an up-and-down direction, and the lower inclined platform is located at one side of the rectangular frame, and the upper inclined platform is located at one side of the cloth box.

[0018] The vertical pin forms a sliding connection along the end of the moving column, and a return spring is arranged between the end of the guide rod and the connecting seat.

[0019] Preferably, a fixed block is fixedly arranged in the transverse groove, a movable block is fixedly arranged on the movable column, and both ends of the spring are connected to the fixed block and the movable block.

[0020] Preferably, a rubber ring matching with the top of the exhaust pipe is fixedly provided at the bottom of the suction port.

[0021] Preferably, a damping rubber strip matching with the moving column is provided on the side surface of the vertical pin.

[0022] Preferably, a plurality of rubber nails are fixedly provided on the surface of the roller.

[0023] A method for testing a light transmission performance testing device for producing blackout cloth, comprising the following steps: S1. Place the shading device on the pallet and test the light transmittance of the fabric using a tester; S2. During the test of the tester, the motor is started to drive the half gear to rotate, and the half gear drives the rectangular frame to move back and forth along the bracket along the two sets of tooth edges, and the guide rod is used to drive the support plate to move horizontally synchronously. During the displacement of the rectangular frame, the two ends of the moving column on the connecting seat are pressed against the side walls of the test box on both sides for alternate extrusion, so that the vertical pins on both sides alternately push the guide rod and the support plate to move longitudinally along the oblique edges on both sides; S3. When the pallet drives the fabric for testing, a suction airflow is generated in the exhaust pipe, and part of the negative pressure acts on the fabric along the suction port to help constrain the fabric on the pallet. When the fabric is completely tested, the pallet reaches the top of the exhaust pipe, the suction port is aligned with the exhaust pipe, and most of the negative pressure acts on the fabric along the suction port, and the fabric is sucked into the exhaust pipe; S4. The guide rod drives the pallet to move longitudinally and stretches the reset spring. When the pallet moves to the end, the vertical pin is squeezed by the lower inclined table to move upward. At this time, the vertical pin is out of cooperation with the inclined edge, and the reset spring pulls the guide rod and the pallet to move and reset. During this process, the push rod and the inclined teeth on the pallet push the roller to rotate along the tooth surface, and the roller is used to bring out the blackout cloth in the cloth box and spread it flat on the pallet. After resetting, the vertical pin is squeezed by the upper inclined table and moves downward to cooperate with the inclined edge again.

[0024] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the rectangular frame is driven by the half gear along the two sets of tooth edges to move back and forth along the bracket, and the guide rod is used to drive the support plate to move horizontally synchronously. During the displacement of the rectangular frame, the two ends of the movable column on the connecting seat are pressed and squeezed alternately along the side walls of the test box, so that the vertical pins on both sides alternately push the guide rod and the support plate to move longitudinally along the oblique edges on both sides. Compared with the existing fixed position test, the above-mentioned rectangular frame cooperates with the half gear to drive the support plate to shift horizontally, and the oblique edges cooperate with the vertical pins to drive the support plate to shift longitudinally, so that different positions of the support plate can be tested by the tester, avoiding the situation where there are differences in light transmittance of a single piece of cloth, so as to ensure a more comprehensive test of the cloth.

[0025] In the present invention, a suction airflow is generated in the exhaust pipe, and part of the negative pressure acts on the fabric along the suction port to assist in constraining the fabric on the pallet. When the fabric is completely tested, the pallet reaches above the exhaust pipe, the suction port is aligned with the exhaust pipe, most of the negative pressure acts on the fabric along the suction port, and the fabric is sucked into the exhaust pipe. Compared with the existing air suction to fix the fabric, the exhaust pipe can assist in fixing the fabric during the displacement of the pallet, and automatically suck away the fabric on the pallet after the test is completed. There is no need for the user to manually remove the fabric, the testing operation is more convenient, and the testing efficiency is effectively improved.

[0026] In the present invention, the guide rod and the support plate are pulled to move and reset by a reset spring. During this process, the push rod and the bevel teeth on the support plate push the roller to rotate along the tooth surface, and the roller is used to bring out the blackout cloth in the cloth box and spread it flat on the support plate. After resetting, the vertical pin is squeezed and moved downward by the upper inclined table to cooperate with the bevel edge again. Compared with the existing method that requires manual loading of cloth into the air suction area, the above-mentioned support plate cooperates with the push rod and the roller, and the reset process after the test is completed can be used to release the cloth in the cloth box, and the cloth can be spread flat and loaded in conjunction with the displacement of the support plate. There is no need for the operator to manually load the cloth after a single test is completed, which avoids reciprocating shutdown to reduce the test efficiency and makes the test operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 The three-dimensional structure of the present invention is cut away Figure 1 ; Figure 3 The three-dimensional structure of the present invention is cut away Figure 2 ; Figure 4 The structure of the support plate, guide rod and rectangular frame of the present invention is shown in FIG. Figure 1 ; Figure 5 The structure of the support plate, guide rod and rectangular frame of the present invention is shown in FIG. Figure 2 ; Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle; Figure 7 It is a three-dimensional structural cross-sectional view of the rectangular frame of the present invention; Figure 8 For the present invention Figure 7 The enlarged view of point B in the middle; Fig. 9 It is a three-dimensional structural cross-sectional view of the support plate and the exhaust pipe of the present invention; Fig.10 It is a three-dimensional structural cross-sectional view of the cloth box of the present invention; Fig.11 For the present invention Fig.10 Enlarged view of point C in the middle.

[0028] In the figure: 1, test box; 2, support plate; 3, tester; 4, shifter; 41, bracket; 42, rectangular frame; 43, motor; 44, half gear; 45, tooth edge; 46, connecting seat; 47, perforation; 48, guide rod; 49, horizontal groove; 410, moving column; 411, spring; 412, vertical pin; 413, oblique edge; 414, cloth unloading assembly; 4141, exhaust pipe; 4142, air flow drawer; 4143, cloth curtain; 4144, suction port; 4145, cloth loading assembly; 41451, cloth box; 41452, notch; 41453, roller; 41454, tooth surface; 41455, push rod; 41456, groove; 41457, oblique teeth; 41458, top spring; 41459, inclined platform; 414510, reset spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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 technical staff in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 11The present invention provides a technical solution: a light transmittance testing device for blackout cloth production, comprising a test box 1, a support plate 2 for placing the blackout cloth is arranged in the test box 1, and a tester 3 matched with the support plate 2 is fixedly arranged on the inner wall of the test box 1, the blackout is arranged on the support plate 2, and the light transmittance of the cloth is tested by the tester 3, and a shifter 4 is arranged on the test box 1 and the support plate 2.

[0031] The shifter 4 includes a bracket 41 fixedly arranged on the inner bottom of the test box 1, and a rectangular frame 42 is slidably connected to the bracket 41, a motor 43 is fixedly arranged on the inner bottom of the test box 1, and a half gear 44 is fixedly installed on the rotating shaft of the motor 43, two groups of tooth edges 45 are opened on the inner side of the rectangular frame 42, and the two groups of tooth edges 45 are symmetrically distributed on both sides of the half gear 44 for alternate meshing, during the testing process of the tester 3, the motor 43 is started to drive the half gear 44 to rotate, and the half gear 44 drives the rectangular frame 42 to move back and forth along the bracket 41 along the two groups of tooth edges 45, and uses the guide rod 48 to drive the support plate 2 to move horizontally synchronously.

[0032] A connecting seat 46 is fixedly connected to the back of the rectangular frame 42, and through holes 47 are formed at both ends of the connecting seat 46. Two guide rods 48 are fixedly connected to the support plate 2, and the two guide rods 48 are movably inserted into the through holes 47 on both sides.

[0033] A transverse groove 49 is provided inside the connecting seat 46, and both ends of the transverse groove 49 pass through the connecting seat 46 and are connected to the outside. Two through holes 47 are connected to the transverse groove 49, and a movable column 410 is slidably connected in the transverse groove 49. A spring 411 is provided in the transverse groove 49, and both ends of the spring 411 are respectively connected to the movable column 410 and the transverse groove 49.

[0034] Both ends of the movable column 410 are provided with vertical pins 412, and the top surfaces of the two guide rods 48 are provided with oblique edges 413 that cooperate with the vertical pins 412 on the same side, and the oblique edges 413 on both sides are staggered. During the displacement of the rectangular frame 42, the two ends of the movable column 410 on the connecting seat 46 are pressed and squeezed alternately along the side walls of the test box 1, so that the vertical pins 412 on both sides alternately push the guide rods 48 and the support plate 2 to move longitudinally along the oblique edges 413 on both sides.

[0035] The test box 1 , the connecting seat 46 , the supporting plate 2 and the guide rod 48 are provided with a cloth unloading assembly 414 .

[0036] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11As shown, the cloth unloading assembly 414 includes an exhaust duct 4141 arranged at the bottom of the test box 1, and an air flow drawer 4142 is fixedly installed on the exhaust duct 4141, the exhaust duct 4141 is connected to the air flow drawer 4142, and the top of the exhaust duct 4141 and the end away from the exhaust duct 4141 are set as open structures.

[0037] A cloth curtain 4143 is arranged between the top opening of the air flow drawer 4142 and the support plate 2, and a suction port 4144 connected to the air flow drawer 4142 is opened in the middle of the support plate 2, a suction airflow is generated in the exhaust pipe 4141, and part of the negative pressure acts on the cloth along the suction port 4144 to assist in restraining the cloth on the support plate 2. When the cloth is completely tested, the support plate 2 reaches above the exhaust pipe 4141, the suction port 4144 is aligned with the exhaust pipe 4141, most of the negative pressure acts on the cloth along the suction port 4144, and the cloth is sucked into the exhaust pipe 4141.

[0038] The test box 1 and the support plate 2 are provided with a cloth loading assembly 4145 .

[0039] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, the cloth loading assembly 4145 includes a cloth box 41451 fixedly mounted on the inner top wall of the test box 1, and the top of the cloth box 41451 passes through the test box 1, the bottom of the cloth box 41451 is set as a closed structure, and a notch 41452 is provided at the bottom of the cloth box 41451, a roller 41453 is rotatably connected in the notch 41452, and an annular tooth surface 41454 is provided on the shaft of the roller 41453.

[0040] An L-shaped push rod 41455 is fixedly provided on the side of the support plate 2, and a plurality of grooves 41456 are provided at the bottom of the upper rod body of the push rod 41455, in which a bevel tooth 41457 matching the tooth surface 41454 is slidably connected, and a top spring 41458 is provided in the groove 41456, and the top spring 41458 pushes the bevel tooth 41457 to move downward, and the guide rod 48 and the support plate 2 move and reset. During this process, the push rod 41455 and the bevel tooth 41457 on the support plate 2 push the roller 41453 to rotate along the tooth surface 41454, and the roller 41453 is used to bring out the blackout cloth in the cloth box 41451 and spread it flat on the support plate 2.

[0041] An inclined platform 41459 is fixedly arranged inside the test box 1 , and the inclined platforms 41459 are arranged in two groups, and the two groups of inclined platforms 41459 are arranged in an upper and lower direction, and the lower inclined platform 41459 is located on one side of the rectangular frame 42 , and the upper inclined platform 41459 is located on one side of the cloth box 41451 .

[0042] The vertical pin 412 forms a sliding connection along the end of the movable column 410, and a return spring 414510 is arranged between the end of the guide rod 48 and the connecting seat 46. The guide rod 48 drives the support plate 2 to stretch the return spring 414510 during the longitudinal displacement. When the support plate 2 shifts to the end, the vertical pin 412 is squeezed by the lower inclined platform 41459 to move upward. At this time, the vertical pin 412 is disengaged from the cooperation with the inclined edge 413, and the return spring 414510 pulls the guide rod 48 and the support plate 2 to move and reset. After resetting, the vertical pin 412 is squeezed downward by the upper inclined platform 41459 to cooperate with the inclined edge 413 again.

[0043] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, a fixed block is fixedly provided in the transverse groove 49, a movable block is fixedly provided on the movable column 410, two ends of the spring 411 are connected to the fixed block and the movable block, and the movable block is used to stretch and compress the spring 411 when the movable column 410 moves.

[0044] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, a rubber ring matching the top of the exhaust pipe 4141 is fixedly provided at the bottom of the suction port 4144. After the support plate 2 moves above the exhaust pipe 4141, the rubber ring is aligned with the pipe mouth to ensure that the suction force in the pipe is mainly concentrated at the suction port 4144.

[0045] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, the side surface of the vertical pin 412 is provided with a damping rubber strip that matches the movable column 410. After the movable column 410 is controlled to move up and down by the inclined platform 41459, the damping rubber strip can limit its displacement state so that it will not automatically reset.

[0046] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 11 As shown, a plurality of rubber nails are fixedly provided on the surface of the roller 41453. When the roller 41453 rotates, the rubber nails are used to contact the blackout cloth in the cloth box 41451, so that the roller 41453 can more stably bring the blackout cloth downward along the notch 41452.

[0047] A method for testing a light transmission performance testing device for producing blackout cloth, comprising the following steps: S1. Place a shading device on the support plate 2 and test the light transmittance of the fabric using the tester 3.

[0048] S2. During the testing process of the tester 3, the motor 43 is started to drive the half gear 44 to rotate. The half gear 44 drives the rectangular frame 42 to move back and forth along the bracket 41 along the two sets of tooth edges 45, and uses the guide rod 48 to drive the support plate 2 to move horizontally synchronously. During the displacement of the rectangular frame 42, the two ends of the moving column 410 on the connecting seat 46 are pressed and squeezed alternately along the side walls of the test box 1, so that the vertical pins 412 on both sides alternately push the guide rod 48 and the support plate 2 to move longitudinally along the oblique edges 413 on both sides.

[0049] S3. When the pallet 2 drives the fabric for testing, a suction airflow is generated in the exhaust pipe 4141, and part of the negative pressure acts on the fabric along the suction port 4144 to assist in restraining the fabric on the pallet 2. When the fabric is completely tested, the pallet 2 reaches above the exhaust pipe 4141, the suction port 4144 is aligned with the exhaust pipe 4141, and most of the negative pressure acts on the fabric along the suction port 4144 and sucks the fabric into the exhaust pipe 4141.

[0050] S4, the guide rod 48 drives the pallet 2 to perform longitudinal displacement and stretches the return spring 414510. When the pallet 2 shifts to the end, the vertical pin 412 is squeezed by the lower inclined platform 41459 to move upward. At this time, the vertical pin 412 is disengaged from the bevel edge 413, and the return spring 414510 pulls the guide rod 48 and the pallet 2 to move and reset. During this process, the push rod 41455 and the bevel tooth 41457 on the pallet 2 push the roller 41453 to rotate along the tooth surface 41454, and the roller 41453 is used to bring out the blackout cloth in the cloth box 41451 and spread it flat on the pallet 2. After resetting, the vertical pin 412 is squeezed by the upper inclined platform 41459 and moves downward to cooperate with the bevel edge 413 again.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A light transmission performance testing device for blackout cloth production, comprising a test box (1), characterized in that: The test box (1) is provided with a support plate (2) for placing a shading cloth, and a tester (3) matched with the support plate (2) is fixedly provided on the inner wall of the test box (1), and a shifter (4) is provided on the test box (1) and the support plate (2); The shifter (4) comprises a bracket (41) fixedly arranged on the inner bottom of the test box (1), and a rectangular frame (42) is slidably connected to the bracket (41), a motor (43) is fixedly arranged on the inner bottom of the test box (1), and a half gear (44) is fixedly installed on the rotating shaft of the motor (43), and two groups of tooth edges (45) are opened on the inner side of the rectangular frame (42), and the two groups of tooth edges (45) are symmetrically distributed on both sides of the half gear (44) for alternate meshing; The back of the rectangular frame (42) is fixedly connected to a connecting seat (46), and both ends of the connecting seat (46) are provided with through holes (47); the support plate (2) is fixedly connected to two guide rods (48), and the two guide rods (48) are movably inserted into the through holes (47) on both sides; The connecting seat (46) is provided with a transverse groove (49) at two ends thereof penetrating the connecting seat (46) and communicating with the outside, the two through holes (47) are both communicated with the transverse groove (49), and a movable column (410) is slidably connected in the transverse groove (49), a spring (411) is provided in the transverse groove (49), and two ends of the spring (411) are respectively connected to the movable column (410) and the transverse groove (49); Both ends of the movable column (410) are provided with vertical pins (412), and the top surfaces of the two guide rods (48) are provided with oblique edges (413) that match the vertical pins (412) on the same side, and the oblique edges (413) on both sides are distributed in a staggered manner; A cloth unloading assembly (414) is provided on the test box (1), the connecting seat (46), the supporting plate (2) and the guide rod (48).

2. The light transmission performance testing device for shade cloth production according to claim 1, characterized in that: The cloth unloading assembly (414) comprises an exhaust pipe (4141) arranged at the bottom of the test box (1), and an air flow drawer (4142) is fixedly mounted on the exhaust pipe (4141), the exhaust pipe (4141) is connected to the air flow drawer (4142), and the top of the exhaust pipe (4141) and the end on the side away from the exhaust pipe (4141) are set as an open structure; A cloth curtain (4143) is provided between the top opening of the airflow drawer (4142) and the support plate (2), and a suction port (4144) communicating with the airflow drawer (4142) is provided in the middle of the support plate (2); The test box (1) and the support plate (2) are provided with a cloth loading assembly (4145).

3. The light transmission performance testing device for shade cloth production according to claim 2, characterized in that: The cloth loading assembly (4145) comprises a cloth box (41451) fixedly mounted on the inner top wall of the test box (1), wherein the top of the cloth box (41451) penetrates the test box (1), the bottom of the cloth box (41451) is configured as a closed structure, and a notch (41452) is provided at the bottom of the cloth box (41451), a roller (41453) is rotatably connected in the notch (41452), and an annular tooth surface (41454) is provided on the cylinder shaft of the roller (41453); A push rod (41455) of an L-shaped structure is fixedly arranged on the side of the support plate (2), and a plurality of grooves (41456) are provided at the bottom of the upper rod body of the push rod (41455), and oblique teeth (41457) matching with the tooth surface (41454) are slidably connected in the grooves (41456), and a top spring (41458) is arranged in the grooves (41456), and the top spring (41458) pushes the oblique teeth (41457) to move downward; The test box (1) is fixedly provided with an inclined platform (41459) inside, and the inclined platforms (41459) are arranged in two groups, with two of them forming one group. The two groups of inclined platforms (41459) are arranged in an upper and lower direction, and the lower inclined platform (41459) is located on one side of the rectangular frame (42), and the upper inclined platform (41459) is located on one side of the cloth box (41451); The vertical pin (412) forms a sliding connection along the end of the movable column (410), and a return spring (414510) is provided between the end of the guide rod (48) and the connecting seat (46).

4. The light transmission performance testing device for shade cloth production according to claim 1, characterized in that: A fixed block is fixedly arranged in the transverse groove (49), a movable block is fixedly arranged on the movable column (410), and two ends of the spring (411) are connected to the fixed block and the movable block.

5. The light transmission performance testing device for shade cloth production according to claim 2, characterized in that: A rubber ring that matches the top of the exhaust pipe (4141) is fixedly provided at the bottom of the suction port (4144).

6. The light transmission performance testing device for shade cloth production according to claim 3, characterized in that: A damping rubber strip matching the movable column (410) is provided on the side surface of the vertical pin (412).

7. The light transmission performance testing device for shade cloth production according to claim 3, characterized in that: A plurality of rubber nails are fixedly arranged on the surface of the roller (41453).

8. The method for testing the light transmission performance testing device for producing shading cloth according to claim 3 comprises the following steps: S1, placing a shading device on a support plate (2), and testing the light transmittance of the fabric using a tester (3); S2. During the testing process of the tester (3), the motor (43) is started to drive the half gear (44) to rotate. The half gear (44) drives the rectangular frame (42) along the two sets of tooth edges (45) to move back and forth along the bracket (41), and the guide rod (48) is used to drive the support plate (2) to move horizontally synchronously. During the displacement of the rectangular frame (42), the two ends of the moving column (410) on the connecting seat (46) are pressed and squeezed alternately along the side walls of the test box (1), so that the vertical pins (412) on both sides alternately push the guide rod (48) and the support plate (2) along the oblique edges (413) on both sides to move longitudinally; S3. When the support plate (2) drives the fabric to be tested, a suction airflow is generated in the exhaust pipe (4141), and part of the negative pressure acts on the fabric along the suction port (4144) to assist in restraining the fabric on the support plate (2). When the fabric is completely tested, the support plate (2) reaches above the exhaust pipe (4141), the suction port (4144) is aligned with the exhaust pipe (4141), and most of the negative pressure acts on the fabric along the suction port (4144), and the fabric is sucked into the exhaust pipe (4141); S4, the guide rod (48) drives the support plate (2) to perform longitudinal displacement, and the return spring (414510) is stretched. When the support plate (2) is displaced to the end, the vertical pin (412) is squeezed by the lower inclined platform (41459) to move upward. At this time, the vertical pin (412) is separated from the cooperation with the inclined edge (413), and the return spring (414510) pulls the guide rod (48) and the support plate (2) to move and reset. During this process, the push rod (41455) and the inclined teeth (41457) on the support plate (2) push the roller (41453) to rotate along the tooth surface (41454), and the roller (41453) is used to bring out the blackout cloth in the cloth box (41451) and spread it flat on the support plate (2). After reset, the vertical pin (412) is squeezed by the upper inclined platform (41459) and moves downward to cooperate with the inclined edge (413) again.

Images