Device for detecting color fastness to sunlight of curtain fabric

Abstract

The invention discloses a curtain cloth sunlight color fastness detection device, and relates to the technical field of color fastness detection.The curtain cloth sunlight color fastness detection device comprises a detection box, an operation panel and a 45-degree observation window are arranged on the front face of the detection box, a top cover is arranged at the top of the detection box, and a mounting frame is arranged at the position, below the top cover, of the inner side of the detection box; a mounting seat is arranged at the bottom of the mounting frame and rotationally mounted, a detection mechanism is arranged on the side edge of the mounting frame, a separation frame is arranged in the center of the mounting frame, and an irradiation lamp is arranged on the inner side of the separation frame; the detection mechanism comprises uniformly mounted plug boards, a partition frame is provided with irradiation lamps corresponding to the mounting boards, a mounting back board and a buckling board are arranged through the plug boards, so that a curtain cloth sample and a blue wool standard sample are mounted, a color fastness test is further carried out, and meanwhile, a covering driving mechanism and a covering assembly are used for covering irradiation; the color fastness test efficiency is improved; the consumption of a blue wool standard sample is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of color fastness detection, in particular to a device for detecting the color fastness of curtain fabrics to sunlight. Background Art

[0002] Light fastness refers to the ability of materials such as textiles to maintain their original color under sunlight. It is an important indicator to measure the color stability of materials. If the light fastness of a material is poor, it may fade or change color after a period of sunlight exposure, thus affecting its appearance and performance. The light fastness test of textiles is generally conducted in conjunction with a blue wool standard sample. After the blue wool standard sample is exposed to the sun together with the test sample, the corresponding level of the test sample on the standard sample is observed under a D65 light source to obtain the color fastness level of the test sample.

[0003] Since curtain fabrics are exposed to sunlight for a long time, the existing testing methods require the preparation of multiple samples for color fastness testing at different exposure times. The testing is time-consuming and requires the preparation of multiple sets of blue wool standards for irradiation testing, resulting in high testing costs. Summary of the invention

[0004] The object of the present invention is to provide a device for detecting the sunlight color fastness of curtain fabrics to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A device for testing the color fastness of curtain fabrics to sunlight, comprising a testing box, a base is provided at the bottom of the testing box, an operation panel and an observation window at a forty-five degree angle are provided at the front of the testing box, a top cover is provided at the top of the testing box, a mounting frame is provided on the inner side of the testing box below the top cover, a mounting seat is provided at the bottom of the mounting frame, the mounting seat is rotatably installed, a testing mechanism is provided on the side of the mounting frame, a partition frame is provided at the center of the mounting frame, and an irradiation lamp is provided on the inner side of the partition frame.

[0006] The detection mechanism includes a plurality of groups of evenly installed plug-in boards, which are plugged into the mounting frame, and a mounting back plate is arranged on the plug-in board. A sample protrusion block and a standard sample protrusion block are arranged on the side of the mounting back plate facing the irradiation lamp, and a snap-fit ​​plate is installed on one side of the sample protrusion block and the standard sample protrusion block. A curtain cloth sample is clamped between the sample protrusion block and the snap-fit ​​plate, and a blue wool standard sample is clamped between the standard sample protrusion block and the snap-fit ​​plate. A covering assembly is arranged on the side of the mounting back plate facing the irradiation lamp, and an extraction mechanism is arranged on the inner side of the detection box, and the extraction mechanism is used to grab the mounting back plate and rotate the mounting back plate to face the observation window, and a D65 light source is arranged on the top of the detection box.

[0007] As a further solution of the present invention: the covering assembly includes a sliding column arranged on the inner side of the mounting back plate, two sliding columns are provided, a matching plate is slidably installed between the two sliding columns, a storage groove is provided on the inner side of the plug-in plate, a covering film is folded and placed in the storage groove, one end of the covering film is connected to the matching plate, an iron block is provided on the matching plate, a covering drive mechanism is provided at the center of the partition frame, and the covering drive mechanism is adsorbed and installed with the iron block.

[0008] As a further solution of the present invention: the covering drive mechanism includes a second driving motor arranged at the center of the partition frame, the output shaft of the second driving motor is connected to a rotating rod, a suspension column is installed on the rotating rod, a limit plate is arranged on the suspension column corresponding to the position of the iron block, two limit plates are continuously arranged, a connecting sleeve is sleeved on the suspension column between the limit plates, two groups of limit blocks are arranged between the limit plates, a connecting flange is arranged on the connecting sleeve between the limit blocks, a supporting spring is arranged between the connecting flange and the limit block, a connecting slider is arranged on the connecting flange, the connecting slider is slidably connected to the rotating frame, an electromagnet 2 is arranged at the end of the rotating frame, slide plates are arranged on both sides of the electromagnet 2, the slide plate is connected with a plug-in column, the slide plate is plugged between the plug-in column and the second electromagnet, a return spring is arranged on the plug-in column, a locking pin is arranged on the slide plate, pin holes are arranged at the positions corresponding to the locking pins on both sides of the iron block, and an electromagnet 1 is arranged at the position corresponding to the slide plate on the iron block.

[0009] As a further solution of the present invention: a spring column is provided at one end of the matching plate, the spring column is connected to a pressing ball, a plurality of spacing holes are continuously provided at the position of the plug-in board corresponding to the pressing ball, and the covering driving mechanism stops driving when the pressing ball and the spacing hole cooperate with each other.

[0010] As a further solution of the present invention: a buckle is provided on the snap-fit ​​plate, the snap-fit ​​plate is snap-connected with the mounting back plate through the buckle, snap-fit ​​columns are provided at both ends of the mounting back plate, and snap-fit ​​grooves are provided at positions on the plug-in board corresponding to the snap-fit ​​columns.

[0011] As a further scheme of the present invention: the extraction mechanism includes a mounting rail arranged on the base, two mounting rails are arranged in parallel, a rack is arranged between the two mounting rails, a clamping frame is slidably installed on the mounting rail, a matching gear is rotatably installed in the clamping frame, the matching gear and the rack are meshed with each other, the matching gear is connected to a driving motor 1, a column 1 is arranged on the clamping frame, a transfer motor is arranged on the top of the column 1, the output shaft of the transfer motor is connected to the column 2, the side of the column 2 is rotatably connected to a connecting arm, the connecting arm is connected to a grabbing plate, electromagnetic adsorption heads are arranged at the upper and lower ends of the grabbing plate, an adsorption groove is arranged on the position of the mounting back plate corresponding to the electromagnetic adsorption head, a blocking rod is arranged on the side of the column 2, and a lifting cylinder is rotatably installed between the top of the column 2 and the connecting arm.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) A partition frame is set in the inner center area of ​​the mounting frame. The partition frame divides the space inside the mounting frame evenly. Combined with the irradiation lamp, each partition area is subjected to irradiation test. A mounting back plate and a snap plate are set on the plug board. When the snap plate and the mounting back plate are snapped together, the curtain fabric sample and the blue wool standard sample are respectively installed in combination with the sample protrusion block and the standard protrusion block, and then placed together in the partition area for irradiation test. At the set irradiation time, the mounting back plate is taken out from the plug board in combination with the extraction mechanism, and the mounting back plate is rotated so that the mounting back plate is at a 45-degree angle and parallel to the observation window. The D65 light source on the top of the test box irradiates the curtain fabric sample and the blue wool standard sample on the mounting back plate. Observe at which level the curtain fabric sample is located on the blue wool standard sample under the light intensity, so as to obtain the color fastness level of the curtain fabric.

[0013] (2) By setting up a covering component, the same group of curtain fabric samples and blue wool standard samples can be subjected to multiple irradiation tests, thereby obtaining the color fastness levels of the curtain fabric samples at different irradiation times. When in use, the curtain fabric samples and blue wool standard samples are first subjected to irradiation tests. After the first stage of irradiation time is reached, the matching plate is controlled by the covering drive component to move along the sliding column, thereby driving the covering film to partially cover the curtain fabric samples and the blue wool standard samples, and then the irradiation test is continued. Repeating the above operation multiple times can realize multiple irradiation tests on the same group of curtain fabric samples and blue wool standard samples. After the final irradiation test is completed, the mounting back plate is removed, and the curtain fabric standard samples with different irradiation times on the mounting back plate are rated for sunlight color fastness. The above irradiation test can effectively improve the test efficiency of multiple groups of sunlight color fastness, while reducing the consumption of blue wool standard samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the detection box in the present invention.

[0016] Figure 3 It is a schematic diagram of the combination of the detection mechanism and the mounting frame in the present invention.

[0017] Figure 4 It is a schematic diagram of the combination of the plug board and the mounting backplane in the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the inner side of the plug board in the present invention.

[0019] Figure 6 It is a schematic diagram of the disassembly of the plug board, the mounting backboard and the snap-fit ​​board in the present invention.

[0020] Figure 7 It is a schematic diagram of the connection structure between the covering driving mechanism and the partition frame in the present invention.

[0021] Figure 8 It is a schematic diagram of the structure of the covering driving mechanism in the present invention.

[0022] Fig. 9 It is a schematic diagram of the adsorption of the covering driving mechanism and the iron block in the present invention.

[0023] Fig.10 It is a structural schematic diagram of the extraction mechanism in the present invention.

[0024] Fig.11 It is a schematic diagram of the installation of the blocking rod in the present invention.

[0025] In the figure: 1. test box; 10. base; 11. operation panel; 12. top cover; 2. mounting frame; 20. mounting seat; 3. testing mechanism; 30. plug-in board; 300. snap-in slot; 301. spacing hole; 31. mounting back plate; 310. adsorption slot; 311. snap-in column; 312. sample protrusion block; 313. standard sample protrusion block; 32. snap-in plate; 33. slide column; 34. spring column; 35. pressing ball; 36. matching plate; 37. storage slot; 38. iron block; 380. electromagnet 1; 381. pin hole; 39. covering film; 4. extraction mechanism; 40. mounting guide rail; 41. rack; 42. snap-in Frame; 43, matching gear; 44, driving motor 1; 45, column 1; 46, indexing motor; 47, column 2; 48, lifting cylinder; 480, blocking rod; 49, grab plate; 490, connecting arm; 410, electromagnetic adsorption head; 5, partition frame; 50, irradiation lamp beads; 6, covering drive mechanism; 60, driving motor 2; 61, rotating rod; 62, hanging column; 63, limiting plate; 64, connecting sleeve; 65, limiting block; 66, connecting flange; 660, supporting spring; 67, rotating frame; 68, connecting slider; 69, electromagnet 2; 610, slide plate; 611, plug-in column; 612, locking pin. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a device for testing the color fastness of curtain fabrics to sunlight includes a testing box 1, a base 10 is provided at the bottom of the testing box 1, an operation panel 11 and an observation window at a forty-five degree angle are provided at the front of the testing box 1, a top cover 12 is provided on the top of the testing box 1, a mounting frame 2 is provided on the inner side of the testing box 1 below the top cover 12, a mounting seat 20 is provided at the bottom of the mounting frame 2, the mounting seat 20 is rotatably installed, a testing mechanism 3 is provided on the side of the mounting frame 2, a partition frame 5 is provided at the center of the mounting frame 2, and an irradiation lamp bead 50 is provided on the inner side of the partition frame 5. The detection mechanism 3 includes a plurality of groups of evenly installed plug-in boards 30, which are plugged into the mounting frame 2. A mounting back plate 31 is provided on the plug-in board 30. A sample protrusion block 312 and a standard sample protrusion block 313 are provided on the side of the mounting back plate 31 facing the irradiation lamp bead 50. A snap-fit ​​plate 32 is installed on one side of the sample protrusion block 312 and the standard sample protrusion block 313. A curtain cloth sample is clamped between the sample protrusion block 312 and the snap-fit ​​plate 32. A blue wool standard sample is clamped between the standard sample protrusion block 313 and the snap-fit ​​plate 32. A covering component is provided on the side of the mounting back plate 31 facing the irradiation lamp bead 50. An extraction mechanism 4 is provided on the inner side of the detection box 1. The extraction mechanism 4 is used to grab the mounting back plate 31 and rotate the mounting back plate 31 to face the observation window. A D65 light source is provided on the top of the detection box 1.

[0028] Specifically, a partition frame 5 is provided in the inner central area of ​​the mounting frame 2, and the partition frame 5 divides the space in the mounting frame 2 evenly. In combination with the irradiation lamp beads 50, an irradiation test is performed on each separated area. A mounting back plate 31 and a snap plate 32 are provided on the plug-in board 30. When the snap plate 32 is snapped together with the mounting back plate 31, the curtain cloth sample and the blue wool standard are respectively installed in combination with the sample protruding block 312 and the standard protruding block 313, so as to be placed together in the separated area for irradiation test. At the set irradiation time, the mounting back plate 31 is taken out from the plug-in board 30 in combination with the extraction mechanism 4, and the mounting back plate 31 is turned so that the mounting back plate 31 is parallel to the observation window at a forty-five degree angle. The D65 light source on the top of the detection box 1 irradiates the curtain cloth sample and the blue wool standard on the mounting back plate 31, and observes at which level the curtain cloth sample is located on the blue wool standard under the light intensity, thereby obtaining the color fastness level of the curtain cloth.

[0029] Further, such as Figure 5As shown, the covering assembly includes a sliding column 33 arranged on the inner side of the mounting back plate 31, and two sliding columns 33 are provided, and a matching plate 36 is slidably installed between the two sliding columns 33. A storage groove 37 is provided on the inner side of the plug-in plate 30, and a covering film 39 is folded and placed in the storage groove 37. One end of the covering film 39 is connected to the matching plate 36, and an iron block 38 is provided on the matching plate 36. A covering drive mechanism 6 is provided at the center of the partition frame 5, and the covering drive mechanism 6 is adsorbed and installed with the iron block 38.

[0030] Specifically, by setting up a covering component, the same group of curtain fabric samples and blue wool standard samples can be subjected to multiple irradiation tests, thereby obtaining the color fastness levels of the curtain fabric samples at different irradiation times. When in use, the curtain fabric samples and blue wool standard samples are first subjected to an irradiation test. After reaching the first stage of irradiation time, the matching plate 36 is controlled by the covering drive component to move along the slide column 33, thereby driving the covering film 39 to partially cover the curtain fabric samples and the blue wool standard samples, and then the irradiation test is continued. Repeating the above operation multiple times can realize multiple irradiation tests on the same group of curtain fabric samples and blue wool standard samples. After the final irradiation test is completed, the mounting back plate 31 is removed, and the curtain fabric standard samples with different irradiation times on the mounting back plate 31 are rated for sunlight color fastness. The above irradiation test can effectively improve the test efficiency of multiple groups of sunlight color fastness, while reducing the consumption of blue wool standard samples.

[0031] Further, such as Figure 7 , Figure 8 , Fig. 9 As shown, the covering drive mechanism 6 includes a second driving motor 60 arranged at the center of the partition frame 5, the output shaft of the second driving motor 60 is connected to a rotating rod 61, a suspension column 62 is installed on the rotating rod 61, a limit plate 63 is arranged on the suspension column 62 corresponding to the position of the iron block 38, two limit plates 63 are arranged in succession, a connecting sleeve 64 is sleeved on the suspension column 62 between the limit plates 63, two groups of limit blocks 65 are arranged between the limit plates 63, a connecting flange 66 is arranged on the connecting sleeve 64 between the limit blocks 65, a supporting spring 660 is arranged between the connecting flange 66 and the limit block 65, A connecting slider 68 is provided on the connecting flange 66, and the connecting slider 68 is slidably connected to the rotating frame 67. An electromagnet 2 69 is provided at the end of the rotating frame 67. Slide plates 610 are provided on both sides of the electromagnet 2 69. The slide plate 610 is connected to a plug-in column 611. The slide plate 610 is plugged into the electromagnet 2 69 through the plug-in column 611. A return spring is provided on the plug-in column 611. A locking pin 612 is provided on the slide plate 610. Pin holes 381 are provided on both sides of the iron block 38 corresponding to the locking pin 612, and an electromagnet 1 380 is provided on the iron block 38 corresponding to the slide plate 610.

[0032] Specifically, in combination with the driving motor 2 60 to drive the rotating rod 61 and the hanging column 62 to rotate, when it is necessary to control the matching plate 36 and the covering film 39 to partially cover, the electromagnet 2 69 is controlled to be energized. When the hanging column 62 rotates, the electromagnet 2 69 and the iron block 38 on the matching plate 36 are adsorbed to each other, and then the electromagnet 1 380 on the iron block 38 is energized to adsorb the slide plate 610. The locking pin 612 on the side of the slide plate 610 cooperates with the pin hole 381 on the side of the iron block 38 to complete the locking. Then, when the rotating rod 61 rotates, it will drive the matching plate 36 to move along the sliding column 33, so as to partially cover the curtain cloth sample and the blue wool standard sample, and perform color fastness testing on the curtain cloth sample at different irradiation times.

[0033] Further, such as Figure 5 As shown, a spring column 34 is provided at one end of the matching plate 36, and the spring column 34 is connected to a pressing ball 35. A plurality of spacing holes 301 are continuously provided at the position of the plug-in board 30 corresponding to the pressing ball 35. When the pressing ball 35 and the spacing hole 301 cooperate with each other, the covering driving mechanism 6 stops driving.

[0034] Specifically, the movement of the covering drive mechanism 6 is controlled by setting the spacing holes 301 and the pressing ball 35. When the matching plate 36 moves along the sliding column 33, the spring column 34 carrying the pressing ball 35 will stop the covering drive mechanism 6 from moving each time it falls into the spacing hole 301. After the irradiation time requirement is completed, the covering drive mechanism 6 will be restarted to continue moving and covering.

[0035] Further, such as Figure 6 As shown, the buckle plate 32 is provided with a buckle, and the buckle plate 32 is clamped with the mounting back plate 31 through the buckle. The mounting back plate 31 is provided with clamping columns 311 at both ends, and the plug-in board 30 is provided with a clamping groove 300 at the position corresponding to the clamping column 311.

[0036] Specifically, the buckle plate 32 is fastened and disassembled from the mounting back plate 31 by means of buckles, so as to facilitate the fast installation of the curtain fabric sample and the blue wool standard sample. At the same time, the mounting back plate 31 is installed in combination with the clamping column 311 and the clamping groove 300 of the plug-in board 30, so that the mounting back plate 31 can be removed from the plug-in board 30 and observed in combination with the extraction mechanism 4 during subsequent observation.

[0037] Further, such as Figure 4 , Fig.10 , Fig.11As shown, the extraction mechanism 4 includes a mounting rail 40 arranged on the base 10, two mounting rails 40 are arranged in parallel, a rack 41 is arranged between the two mounting rails 40, a clamping frame 42 is slidably installed on the mounting rail 40, a matching gear 43 is rotatably installed in the clamping frame 42, the matching gear 43 and the rack 41 are meshed with each other, and the matching gear 43 is connected to a driving motor 44, a column 45 is arranged on the clamping frame 42, and a rotating shaft 46 is arranged on the top of the column 45. The output shaft of the rotation motor 46 is connected to the column 47, the side of the column 47 is rotatably connected to the connecting arm 490, the connecting arm 490 is connected to the grabbing plate 49, the upper and lower ends of the grabbing plate 49 are provided with electromagnetic adsorption heads 410, the position of the mounting back plate 31 corresponding to the electromagnetic adsorption head 410 is provided with an adsorption groove 310, the side of the column 47 is provided with a blocking rod 480, and a lifting cylinder 48 is rotatably installed between the top of the column 47 and the connecting arm 490.

[0038] Specifically, the grab plate 49 is driven to approach the plug-in board 30 through the clamping frame 42, the matching gear 43 and the driving motor 44. When the electromagnetic adsorption head 410 and the adsorption groove 310 on the mounting back plate 31 are docked and adsorbed with each other, the driving motor 44 is driven in reverse to drive the mounting back plate 31 to separate from the plug-in board 30. Then, the mounting back plate 31 is rotated toward the observation window by the conversion motor, and the grab plate 49 is controlled to flip over by the lifting cylinder 48 so that the mounting back plate 31 is parallel to the observation window. The color fastness level of the curtain fabric sample is observed by the D65 light source on the top of the detection box 1.

[0039] The working principle of the embodiment of the present invention is: like Figure 1-Figure 11As shown, a partition frame 5 is provided in the inner central area of ​​the mounting frame 2, and the partition frame 5 divides the space in the mounting frame 2 evenly. In combination with the irradiation lamp beads 50, an irradiation test is performed on each separated area. A mounting back plate 31 and a snap plate 32 are provided on the plug-in board 30. When the snap plate 32 is snapped together with the mounting back plate 31, the curtain cloth sample and the blue wool standard sample are respectively installed in combination with the sample protruding block 312 and the standard protruding block 313, so as to be placed together in the separated area for irradiation test. At the set irradiation time, the mounting back plate 31 is taken out from the plug-in board 30 in combination with the extraction mechanism 4, and the mounting back plate 31 is rotated so that the mounting back plate 31 is parallel to the observation window at an angle of forty-five degrees. The D65 light source on the top of the detection box 1 irradiates the curtain cloth sample and the blue wool standard sample on the mounting back plate 31, and observes at which level the curtain cloth sample is located on the blue wool standard sample under the light intensity, thereby obtaining the color fastness level of the curtain cloth. By setting up a covering component, the same group of curtain fabric samples and blue wool standard samples can be subjected to multiple irradiation tests, thereby obtaining the color fastness levels of the curtain fabric samples at different irradiation times. When in use, the curtain fabric samples and blue wool standard samples are first subjected to an irradiation test. After reaching the first stage of irradiation time, the matching plate 36 is controlled by the covering drive component to move along the slide column 33, thereby driving the covering film 39 to partially cover the curtain fabric samples and the blue wool standard samples, and then the irradiation test is continued. Repeating the above operation multiple times can realize multiple irradiation tests on the same group of curtain fabric samples and blue wool standard samples. After the final irradiation test is completed, the mounting back plate 31 is removed, and the curtain fabric standard samples with different irradiation times on the mounting back plate 31 are rated for sunlight color fastness. The above irradiation test can effectively improve the test efficiency of multiple groups of sunlight color fastness, while reducing the consumption of blue wool standard samples.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for testing the color fastness of curtain fabric to sunlight, comprising a testing box (1), wherein a base (10) is arranged at the bottom of the testing box (1), and an operation panel (11) and an observation window at a 45-degree angle are arranged at the front of the testing box (1), characterized in that: The top of the detection box (1) is provided with a top cover (12); a mounting frame (2) is provided inside the detection box (1) below the top cover (12); a mounting seat (20) is provided at the bottom of the mounting frame (2); the mounting seat (20) is rotatably mounted; a detection mechanism (3) is provided on the side of the mounting frame (2); a partition frame (5) is provided at the center of the mounting frame (2); an irradiation lamp bead (50) is provided inside the partition frame (5); The detection mechanism (3) comprises a plurality of groups of uniformly mounted plug-in boards (30), the plug-in boards (30) being plugged into the mounting frame (2), the plug-in boards (30) being provided with a mounting back plate (31), the mounting back plate (31) being provided with a sample protrusion block (312) and a standard sample protrusion block (313) on a side of the mounting back plate (31) facing the irradiation lamp bead (50), a buckle plate (32) being mounted on one side of the sample protrusion block (312) and the standard sample protrusion block (313), the sample protrusion block (312) and the standard sample protrusion block (313) being provided with a buckle plate (32) on one side of the sample protrusion block (312) and the standard sample protrusion block (313), A curtain fabric sample is clamped between the mounting plate (312) and the snap-fit ​​plate (32), a blue wool standard sample is clamped between the standard sample protrusion block (313) and the snap-fit ​​plate (32), a covering assembly is provided on the side of the mounting back plate (31) facing the irradiation lamp bead (50), an extraction mechanism (4) is provided on the inner side of the detection box (1), the extraction mechanism (4) is used to grab the mounting back plate (31) and rotate the mounting back plate (31) to face the observation window, and a D65 light source is provided on the top of the detection box (1).

2. The device for testing the color fastness of curtain fabrics to sunlight according to claim 1, characterized in that: The covering assembly comprises a sliding column (33) arranged on the inner side of the mounting back plate (31), two sliding columns (33) are provided, a matching plate (36) is slidably mounted between the two sliding columns (33), a receiving groove (37) is provided on the inner side of the plug-in plate (30), a covering film (39) is folded and placed in the receiving groove (37), one end of the covering film (39) is connected to the matching plate (36), an iron block (38) is provided on the matching plate (36), and a covering driving mechanism (6) is provided at the center of the partition frame (5), and the covering driving mechanism (6) is adsorbed and mounted on the iron block (38).

3. The device for testing the color fastness of curtain fabric to sunlight according to claim 2, characterized in that: The covering driving mechanism (6) comprises a second driving motor (60) arranged at the center of the partition frame (5); the output shaft of the second driving motor (60) is connected to a rotating rod (61); a suspension column (62) is mounted on the rotating rod (61); a limit plate (63) is arranged on the suspension column (62) at a position corresponding to the iron block (38); two limit plates (63) are arranged in succession; a connecting sleeve (64) is sleeved on the suspension column (62) between the limit plates (63); two groups of limit blocks (65) are arranged between the limit plates (63); a connecting flange (66) is arranged on the connecting sleeve (64) between the limit blocks (65); a supporting spring (660) is arranged between the connecting flange (66) and the limit block (65); A connecting slider (68) is provided on the connecting flange (66), and the connecting slider (68) is slidably connected to the rotating frame (67). An electromagnet 2 (69) is provided at the end of the rotating frame (67). Slide plates (610) are provided on both sides of the electromagnet 2 (69). The slide plate (610) is connected to a plug-in column (611). The slide plate (610) is plugged into the electromagnet 2 (69) through the plug-in column (611). A return spring is provided on the plug-in column (611). A locking pin (612) is provided on the slide plate (610). Pin holes (381) are provided at positions corresponding to the locking pin (612) on both sides of the iron block (38), and an electromagnet 1 (380) is provided at a position corresponding to the slide plate (610) on the iron block (38).

4. The device for testing the color fastness of curtain fabric to sunlight according to claim 2, characterized in that: A spring column (34) is provided at one end of the matching plate (36), and a pressing ball (35) is connected to the spring column (34). A plurality of spacing holes (301) are continuously provided at a position of the plug-in plate (30) corresponding to the pressing ball (35). When the pressing ball (35) and the spacing holes (301) are matched with each other, the covering driving mechanism (6) stops driving.

5. The device for testing the color fastness of curtain fabric to sunlight according to claim 1, characterized in that: The buckle plate (32) is provided with a buckle, and the buckle plate (32) is buckled with the mounting back plate (31) via the buckle, and the mounting back plate (31) is provided with a buckle column (311) at both ends, and a buckle groove (300) is provided at a position on the plug-in plate (30) corresponding to the buckle column (311).

6. The device for testing the color fastness of curtain fabric to sunlight according to claim 1, characterized in that: The extraction mechanism (4) comprises a mounting rail (40) arranged on the base (10), two mounting rails (40) are arranged in parallel, a rack (41) is arranged between the two mounting rails (40), a clamping frame (42) is slidably mounted on the mounting rail (40), a matching gear (43) is rotatably mounted in the clamping frame (42), the matching gear (43) and the rack (41) are meshed with each other, the matching gear (43) is connected to a driving motor (44), a column (45) is arranged on the clamping frame (42), and a transfer motor (44) is arranged on the top of the column (45). The output shaft of the indexing motor (46) is connected to the second column (47), the side of the second column (47) is rotatably connected to a connecting arm (490), the connecting arm (490) is connected to a grab plate (49), the upper and lower ends of the grab plate (49) are provided with electromagnetic adsorption heads (410), the position of the mounting back plate (31) corresponding to the electromagnetic adsorption head (410) is provided with an adsorption groove (310), the side of the second column (47) is provided with a blocking rod (480), and a lifting cylinder (48) is rotatably installed between the top of the second column (47) and the connecting arm (490).

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