Textile fabric color fastness detection device

Abstract

The invention relates to the technical field of color fastness detection, and discloses a textile fabric color fastness detection device, which comprises a detection workbench, a cloth fixing mechanism and a friction mechanism, the friction mechanism comprises a supporting side frame arranged on the side edge of the detection workbench, a guiding sliding rod is arranged on the supporting side frame, a transverse moving seat is slidably connected to the guiding sliding rod, guiding columns are slidably connected to the two sides of the transverse moving seat, a downward pressing seat is arranged on the sides, close to the detection workbench, of the guiding columns, and a fixing head is arranged at the bottom of the downward pressing seat. The exterior of the fixing head is wrapped with friction cloth, the end part of the detection workbench is provided with an extension supporting plate, and the extension supporting plate is slidably connected with a transverse moving flat plate which transversely moves synchronously with the lower pressing seat. The two tooth-missing gears are alternately in meshing transmission with the racks on the transverse moving flat plate, so that the transverse moving flat plate can drive the friction cloth to move on the surface of the to-be-tested cloth according to a fixed speed, and the friction experiment error of the friction cloth and the to-be-tested cloth is reduced.

Description

Technical Field

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

[0002] Color fastness testing of textile fabrics is an important means to evaluate the ability of fabrics to maintain their original color under different use and treatment conditions. It is of key significance for ensuring the quality of textiles, meeting consumer needs, and guiding production process improvements.

[0003] The most common color fastness test is the friction test. This instrument uses a specific device to rub the fabric against a friction cloth back and forth under a certain pressure. The color fastness is assessed based on the color staining of the friction cloth and the color fading of the fabric. However, the friction head is usually driven by a crank slider, which results in the friction head's speed varying at different locations on the fabric surface. This can cause the color fading in the center to differ from that on the sides, thus requiring improvement. Summary of the Invention

[0004] The present invention provides a device for detecting color fastness of textile fabrics, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A textile fabric color fastness testing device comprises a testing workbench, a fabric fixing mechanism and a friction mechanism; the fabric fixing mechanism comprises a fixing platform arranged in the middle of the testing workbench, clamping slide bars are arranged on both sides of the fixing platform, a clamping disc cooperating with the fixing platform is arranged at one end of the clamping slide bar away from the ground, the fabric to be tested is clamped between the clamping disc and the fixing platform, and a clamping drive assembly for driving the clamping disc to move toward the fixing platform is arranged on the testing workbench; the friction mechanism comprises a supporting side frame arranged on the side of the testing workbench, and a guide The sliding rod and the guide sliding rod are slidably connected to a transverse seat, and guide columns are slidably connected to both sides of the transverse seat. A lower pressure seat is provided on the side of the guide column close to the detection workbench, and a fixed head is provided at the bottom of the lower pressure seat. The outside of the fixed head is wrapped with friction cloth. An extended support plate is provided at the end of the detection workbench, and a transverse plate that moves synchronously with the lower pressure seat is slidably connected to the extended support plate. Racks are provided on both sides of the transverse plate, and toothed gears with opposite rotation directions are provided on both sides of the extended support plate. The tooth parts of the two toothed gears are alternately meshed with the racks for transmission.

[0006] As a preferred technical solution of the present invention, the clamping slide is slidably connected to the inspection workbench, the clamping drive assembly includes a clamping push plate that moves synchronously with the clamping slide, a telescopic plate is provided on the side of the inspection workbench close to the ground, the middle portion of the telescopic plate is slidably connected to the clamping push rod, the clamping push rod is fixedly connected to the clamping cross bar, the end of the clamping cross bar is rotatably connected to the clamping top rod, and the end of the clamping top rod is rotatably connected to the clamping push plate. The end of the clamping slide is provided with a clamping baffle, the end of the clamping push plate is slidably connected to the clamping slide, and a clamping spring is provided between the clamping push plate and the clamping baffle.

[0007] As a preferred technical solution of the present invention, the external thread of the fixed head is connected with a clamping ring for fixing the friction cloth, a counterweight block is provided on the lower pressure seat, a deflection head is provided at the end of the guide column away from the ground, the deflection head is rotatably connected to a deflection handle that cooperates with the transverse seat, the end of the transverse plate is rotatably connected to a support frame, and the end of the support frame is rotatably connected to the end of the lower pressure seat.

[0008] As a preferred technical solution of the present invention, the two sides of the extended support plate are provided with extended side plates, which are rotatably connected to a rotating shaft fixedly connected to the toothless gear. The side of the extended support plate close to the ground is provided with a rotary drive assembly that drives the two toothless gears to rotate synchronously in opposite directions. The rotary drive assembly includes a suspension bracket provided in the middle of the extended support plate, the middle of the suspension bracket is rotatably connected to a main shaft, the end of the main shaft is provided with a driving gear, and the two sides of the driving gear are meshedly connected to a driven gear fixedly connected to the rotating shaft. The end of the suspension bracket is provided with a drive motor, and the output shaft of the drive motor is connected to the main shaft via a belt drive.

[0009] As a preferred technical solution of the present invention, a support frame is provided on the extended support plate, a support slide is provided on the support frame, and a support slide is slidably connected to the support slide fixedly connected to the transverse plate. A limit slide is provided at the end of the support slide, and a fixed block is provided at the end of the limit slide, and a sliding sleeve is slidably connected to the middle part of the limit slide, and a return spring is provided between the sliding sleeve and the support slide to drive the sliding sleeve to move away from the support slide, a second deflection rod is rotatably connected to the side of the sliding sleeve, and the end of the second deflection rod is rotatably connected to the limiting column away from the sliding sleeve, and the end of the transverse plate is rotatably connected to the first deflection rod, and the end of the first deflection rod is rotatably connected to the limiting column away from the transverse plate, and the end of the support frame is provided with a slot that cooperates with the limiting column.

[0010] The present invention has the following benefits: By alternately meshing the two toothless gears with the rack on the transverse moving plate, the transverse moving plate can drive the friction cloth to move on the surface of the fabric to be tested at a fixed speed, thereby reducing the error of the friction test between the friction cloth and the fabric to be tested. In addition, the entire drive unit adopts a gear transmission method, which has a streamlined structure, better reliability, and lower production cost, making it suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 The figure is a structural diagram of a device for testing color fastness of textile fabrics.

[0013] Figure 2 The figure is a front view of a device for testing color fastness of textile fabrics.

[0014] Figure 3 The figure is a structural schematic diagram of a fabric fixing mechanism in a textile fabric color fastness testing device.

[0015] Figure 4 for Figure 3 Front view of .

[0016] Figure 5 This is a schematic diagram of the structure of the lower part of the testing workbench in a textile fabric color fastness testing device.

[0017] Figure 6 The figure is a schematic diagram of the structure of the clamping push plate and the clamping slide bar in a textile fabric color fastness testing device.

[0018] Figure 7 The figure is a schematic diagram of the structure of the friction mechanism in a textile fabric color fastness testing device.

[0019] Figure 8 The figure is a schematic diagram of the structure of the deflection handle and the lateral movement seat in a textile fabric color fastness testing device.

[0020] Figure 9 This is a schematic diagram of the structure of the missing tooth gear and rack in a textile fabric color fastness testing device.

[0021] Figure 10 for Figure 9 Front view of .

[0022] Figure 11The figure is a schematic diagram of the structure of the lower part of the supporting plate extending out of a textile fabric color fastness testing device.

[0023] Figure 12 for Figure 10 A partial enlarged schematic diagram of the middle A.

[0024] In the figure: 1. Detection workbench; 2. Fabric fixing mechanism; 3. Friction mechanism; 4. Fixing platform; 5. Clamping slide bar; 6. Clamping plate; 7. Clamping drive assembly; 8. Telescopic plate; 9. Clamping spring; 10. Clamping baffle; 11. Clamping push plate; 12. Clamping push rod; 13. Clamping cross bar; 14. Clamping top rod; 15. Support side frame; 16. Guide slide bar; 17. Transverse seat; 18. Lower pressure seat; 19. Guide column; 20. Support frame; 21. Extended support plate; 22. Transverse plate; 23. Rack; 24. Toothless gear; 25. Clamping ring; 26. Fixing Fixed head; 27. Counterweight; 28. Deflection head; 29. ​​Deflection handle; 30. Extended side panel; 31. Rotating shaft; 32. Driven gear; 33. Driving gear; 34. Support frame; 35. Support slide; 36. Support slide; 37. Rotary drive assembly; 38. Suspension frame; 39. Main shaft; 40. Second pulley; 41. Synchronous belt; 42. First pulley; 43. Drive motor; 44. Slot; 45. First deflection rod; 46. Limit column; 47. Second deflection rod; 48. Fixed block; 49. Sleeve; 50. Return spring; 51. Limit slide. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0026] In one embodiment, see Figures 1-12 , a textile fabric color fastness testing device, comprising a testing workbench 1, a fabric fixing mechanism 2 and a friction mechanism 3; The cloth fixing mechanism 2 includes a fixed platform 4 arranged in the middle of the detection workbench 1. The detection workbench 1 is placed horizontally. Support legs are arranged at the bottom of the detection workbench 1 to support the entire device. The fixed platform 4 is arranged in the middle of the upper surface of the detection workbench 1 in a left-right direction. Four vertically arranged clamping slide bars 5 are provided at the four corners of the fixed platform 4. The upper end of the clamping slide bar 5 is fixedly connected to the lower surface of the clamping disk 6. The clamping disk 6 is a U-shaped structure. After the cloth to be tested is placed on the fixed platform 4, the clamping disk 6 moves downward to press the cloth to be tested against the fixed platform 4. The rectangular notch exposed in the middle of the clamping disk 6 can be used for friction experiments. A clamping drive assembly 7 is provided below the detection workbench 1. The clamping drive assembly 7 can drive the clamping disk 6 to move downward, thereby achieving the effect of the clamping disk 6 clamping the cloth to be tested; The friction mechanism 3 includes a supporting side frame 15 arranged on the side of the detection workbench 1. The supporting side frame 15 is an L-shaped structure arranged on the left and right sides of the rear side of the detection workbench 1. A guide slide bar 16 arranged in a left and right direction is fixedly connected to the upper end of the supporting side frame 15. The middle part of the guide slide bar 16 is slidably connected to a transverse seat 17 arranged in a front and back direction. The front and rear ends of the transverse seat 17 are slidably connected to a vertically arranged guide column 19. The lower end of the guide column 19 is fixedly connected to a lower pressure seat 18 arranged in a front and back direction. A fixed head 26 is provided in the middle of the lower surface of the lower pressure seat 18, and the friction cloth is wrapped on the fixed head 26. Therefore, the fixed head 26 can slide left and right on the fabric to be tested with the transverse seat 17. The left The extending support plate 21 is set to the right, and a transverse plate 22 is slidably connected to the extending support plate 21. The transverse plate 22 can slide left and right along the upper surface of the detection workbench 1, and the lower pressure seat 18 moves left and right with the transverse plate 22. Racks 23 are provided on the front and rear sides of the transverse plate 22, and toothless gears 24 with opposite rotation directions are provided on the front and rear sides of the extending support plate 21. The tooth parts of the toothless gear 24 are alternately engaged with the rack 23 for transmission. For example, when one toothless gear 24 is engaged with the rack 23 for transmission, the transverse plate 22 moves to the left. When the other toothless gear 24 is engaged with the rack 23 for transmission, the transverse plate 22 will move to the right, and the two toothless gears 24 drive the transverse plate 22 to move left and right.

[0027] In one case of this embodiment, the clamping drive assembly 7 includes a clamping push plate 11 that moves synchronously with the clamping slide 5. The clamping push plates 11 arranged in a left-right direction are arranged on the front and rear sides below the detection platform. The left and right ends of the clamping push plates 11 are slidably connected to the lower part of the clamping slide 5. The lower end of the clamping slide 5 is fixedly connected to the clamping baffle 10. A clamping spring 9 is arranged between the clamping baffle 10 and the clamping push plate 11. The clamping spring 9 is sleeved on the outside of the clamping slide 5. A telescopic plate 8 is arranged in the middle of the lower surface of the detection workbench 1. The left and right telescopic plates 8 are slidably connected to the clamping baffle 10 arranged in a left-right direction. On the left and right sides of the push rod 12, the middle part of the clamping push rod 12 is fixedly connected with a clamping cross bar 13 set in a front-to-back direction, and the front and rear ends of the clamping cross bar 13 are rotatably connected to the upper end of the clamping top rod 14, and the lower end of the clamping top rod 14 is rotatably connected to the middle part of the upper surface of the clamping push plate 11. Therefore, when the clamping push rod 12 moves to the right, the clamping top rod 14 gradually rotates to a vertical state. At this time, the clamping push plate 11 will move downward, and the clamping push plate 11 pushes the clamping slide bar 5 downward through the clamping spring 9, thereby causing the clamping disk 6 to move downward, so that the clamping disk 6 and the fixed platform 4 complete the fixation of the fabric to be tested.

[0028] In one case of this embodiment, the external thread of the fixed head 26 is connected with a clamping ring 25 for fixing the friction cloth. Therefore, after the friction cloth is put on the fixed head 26, the clamping ring 25 is screwed onto the outside of the fixed head 26. The clamping ring 25 and the fixed head 26 can complete the fixing of the friction cloth, and a counterweight block 27 is provided on the upper surface of the lower pressure seat 18. The pressure between the friction cloth and the fabric to be tested is changed by selecting the weight of the counterweight block 27. In addition, a deflection head 28 is provided at the upper end of the guide column 19. The deflection head 28 is rotatably connected to a deflection handle 29. The deflection handle 29 is a U-shaped structure. When the deflection handle 29 is rotated downward, the deflection handle 29 will support the guide column 19. At this time, the fixed head 26 is in a high position, which is convenient for the installation of the fabric to be tested and the friction cloth. However, when the deflection handle 29 is disengaged from the transverse displacement seat 17, the lower pressure seat 18 can move downward under the action of gravity, so that the friction cloth can be pressed tightly against the upper surface of the fabric to be tested. The left end of the transverse plate 22 is rotatably connected to the right end of the support frame 20, and the left end of the support frame 20 is rotatably connected to the front and rear ends of the lower pressure seat 18. Therefore, the transverse plate 22 moves left and right, and the lower pressure seat 18 will move left and right synchronously with the transverse seat 17.

[0029] In one case of this embodiment, an extended side panel 30 is provided in the middle of the front and rear sides of the extended support plate 21. The extended side panel 30 is arranged in a front-to-back direction. A vertically arranged rotating shaft 31 is rotatably connected to the end of the extended side panel 30. The upper end of the rotating shaft 31 is fixedly connected to the toothless gear 24, and a rotation drive assembly 37 is provided on the lower surface of the extended support plate 21. The rotation drive assembly 37 can drive the two toothless gears 24 to rotate synchronously in opposite directions. The rotary drive assembly 37 includes a suspension bracket 38 arranged in the middle of the lower surface of the extended support plate 21, and the middle part of the suspension bracket 38 is rotatably connected to a vertically arranged main shaft 39, and the upper end of the main shaft 39 is fixedly connected to a driving gear 33, and the front and rear sides of the driving gear 33 are meshed with driven gears 32, and the driven gear 32 is fixedly connected to the lower end of the main shaft 39. A driving motor 43 is provided at the right end of the suspension bracket 38, and the output shaft of the driving motor 43 is fixedly connected to a first pulley 42, which is connected to the second pulley 40 through a synchronous belt 41, and the second pulley 40 is fixedly connected to the lower end of the main shaft 39. Therefore, the driving motor 43 can drive the main shaft 39 to rotate by belt drive, and the main shaft 39 makes the two toothless gears 24 rotate synchronously in opposite directions through the cooperation of the driving gear 33 and the driven gear 32, thereby realizing the left and right movement of the transverse plate 22.

[0030] In one case of this embodiment, a support frame 34 arranged in a left-right direction is provided on the upper surface of the extended support plate 21, and the upper end of the support frame 34 is fixedly connected to a support slide 35 arranged in a left-right direction. The middle part of the support slide 35 is slidably connected to a support slide 36. The upper surface of the support slide 36 is fixedly connected to the transverse plate 22, and a left-right limiting slide 51 is provided at both the left and right ends of the support slide 36. The end of the limiting slide 51 is provided with a fixed block 48 fixedly connected to the transverse plate 22. The middle part of the limiting slide 51 A sliding sleeve 49 is slidably connected. A return spring 50 is provided between the sliding sleeve 49 and the support slide 36 to drive the sliding sleeve 49 in a direction away from the support slide 36. A second deflection rod 47 is rotatably connected to the side of the sliding sleeve 49. The end of the second deflection rod 47 away from the sliding sleeve 49 is rotatably connected to the limit post 46. The end of the transverse plate 22 is rotatably connected to the first deflection rod 45. The end of the first deflection rod 45 away from the transverse plate 22 is rotatably connected to the limit post 46. The end of the support frame 34 is provided with a slot 44 that cooperates with the limit post 46. Therefore, the return spring 50 pushes the limit post 46 downward. When the transverse plate 22 moves to the extreme left or right, the limit post 46 moves into the slot 44, and the transverse plate 22 remains stationary in this position. Therefore, after the toothless gear 24 is disengaged from the rack 23, the transverse plate 22 will not actively move.

[0031] During the implementation of this embodiment, samples of the fabric to be tested and the friction cloth are taken according to the relevant parameters specified in the testing standards, and are left to stand for a period of time according to the relevant temperature and humidity standards. After all is completed, the experiment is ready to be carried out.

[0032] After the sample is installed, the driving motor 43 is started. The driving motor 43 moves the transverse plate 22 left and right through the belt drive and gear drive. When the transverse plate 22 moves to the far right, the lower pressure seat 18 is also at the far right. Lift the lower pressure seat 18 upward, turn the deflection handle 29 downward, release the lower pressure seat 18, and the lower end of the deflection handle 29 presses against the transverse seat 17. Pull the clamping push rod 12 to the left, and the clamping cross bar 13 drives the clamping push plate 11 to move upward through the clamping top rod 14. The clamping disk 6 moves upward, and the fabric to be tested is spread flat on the fixed table 4. The clamping push rod 12 is moved in the opposite direction. Rod 12, the clamping top rod 14 is rotated to a vertical state and is stuck. At this time, the clamping disk 6 is pressed tightly on the fixed platform 4 to complete the fixing of the fabric to be tested. The clamping spring 9 is in a compressed state, so that the clamping disk 6 always provides a stable clamping force, wrapping the friction cloth on the fixed head 26, and the clamping ring 25 is screwed on the outside of the fixed head 26. The friction cloth is fixed, and a counterweight block 27 of appropriate weight is selected according to the standard and placed on the lower pressure seat 18. The deflection handle 29 is rotated in the opposite direction, and the deflection handle 29 is disengaged from the transverse displacement seat 17. At this time, the friction cloth falls on the fabric to be tested under the action of gravity.

[0033] In the friction experiment, the driving motor 43 is started. The driving motor 43 rotates the main shaft 39 through the belt drive. The main shaft 39 makes the toothless gears 24 on the front and rear sides rotate synchronously in opposite directions through the cooperation of the driving gear 33 and the driven gear 32. When the toothless gear 24 on one side is meshed with the rack 23 for transmission, the transverse plate 22 moves to the left. At this time, the lower pressure seat 18 moves to the left along the transverse plate 22. At this time, the friction cloth moves to the left along the fabric to be tested. The friction cloth and the fabric to be tested achieve constant pressure friction processing. When the transverse plate 22 moves to When it is at its shortest on the left, the limiting post 46 falls into the slot 44. At this time, the tooth part of the toothless gear 24 disengages from the rack 23, the transverse plate 22 stops moving, and the friction cloth stops moving. When the tooth part of the toothless gear 24 on the other side engages with the rack 23 for transmission, the transverse plate 22 moves to the right. At this time, the friction cloth moves to the right along the fabric to be tested. Through the continuous operation of the drive motor 43, the angular velocity of the drive motor 43 remains fixed. At this time, the friction cloth moves left and right on the fabric to be tested at a fixed speed to complete the detection process of friction color fastness.

[0034] The sample is removed. When the number of left and right movements of the friction cloth meets the test requirements, the driving motor 43 is stopped after the transverse plate 22 stops on the right side. At this time, the deflection handle 29 is rotated to support the lower pressure seat 18, and the clamping push rod 12 is pulled to the left. The clamping plate 6 is separated from the fixed platform 4, and the cloth to be tested is removed. The color change of the cloth to be tested is compared according to the relevant testing standards, and subsequent testing and processing are carried out.

[0035] The present invention is applicable to a color fastness testing device for textile fabrics. Two toothless gears 24 are alternately meshed with a rack 23 on a transverse moving plate 22 for transmission, so that the transverse moving plate 22 can drive the friction cloth to move on the surface of the fabric to be tested at a fixed speed, thereby reducing the error of the friction test between the friction cloth and the fabric to be tested. In addition, the entire driving unit adopts a gear transmission mode, has a streamlined structure, better reliability, and lower production cost, and is suitable for popularization and use.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A textile fabric color fastness testing device, characterized in that: It includes a testing workbench, a fabric fixing mechanism and a friction mechanism; The fabric fixing mechanism includes a fixing platform arranged in the middle of the detection workbench, with clamping slide bars arranged on both sides of the fixing platform, and a clamping disc cooperating with the fixing platform arranged at the end of the clamping slide bar away from the ground, the fabric to be tested is clamped between the clamping disc and the fixing platform, and a clamping drive assembly is arranged on the detection workbench to drive the clamping disc to move toward the fixing platform; The friction mechanism includes a supporting side frame arranged on the side of the detection workbench, a guide slide bar is provided on the supporting side frame, a transverse seat is slidably connected to the guide slide bar, guide columns are slidably connected on both sides of the transverse seat, a lower pressure seat is provided on the side of the guide column close to the detection workbench, a fixed head is provided at the bottom of the lower pressure seat, and the outside of the fixed head is wrapped with friction cloth, an extended support plate is provided at the end of the detection workbench, a transverse plate that moves synchronously with the lower pressure seat is slidably connected on the extended support plate, racks are provided on both sides of the transverse plate, and toothed gears with opposite rotation directions are provided on both sides of the extended support plate, and the tooth parts of the two toothed gears are alternately meshed with the racks for transmission.

2. A textile fabric color fastness testing device according to claim 1, characterized in that: The clamping slide is slidably connected to the detection workbench, and the clamping drive assembly includes a clamping push plate that moves synchronously with the clamping slide. A telescopic plate is provided on the side of the detection workbench close to the ground, and the middle part of the telescopic plate is slidably connected to the clamping push rod, the clamping push rod is fixedly connected to the clamping cross bar, the end of the clamping cross bar is rotatably connected to the clamping top rod, and the end of the clamping top rod is rotatably connected to the clamping push plate.

3. A textile fabric color fastness testing device according to claim 2, characterized in that: The end of the clamping slide rod is provided with a clamping baffle, the end of the clamping push plate is slidably connected to the clamping slide rod, and a clamping spring is provided between the clamping push plate and the clamping baffle.

4. A textile fabric color fastness testing device according to claim 1, characterized in that: The external thread of the fixed head is connected to a clamping ring for fixing the friction cloth, a counterweight is provided on the lower pressure seat, a deflection head is provided at the end of the guide column away from the ground, the deflection head is rotatably connected to a deflection handle that cooperates with the transverse seat, the end of the transverse plate is rotatably connected to a support frame, and the end of the support frame is rotatably connected to the end of the lower pressure seat.

5. The device for detecting color fastness of textile fabrics according to claim 1, characterized in that: The two sides of the extended support plate are provided with extended side plates, which are rotatably connected to a rotating shaft fixedly connected to the toothless gear. The side of the extended support plate close to the ground is provided with a rotating drive component that drives the two toothless gears to rotate synchronously in opposite directions.

6. A textile fabric color fastness testing device according to claim 5, characterized in that: The rotary drive assembly includes a suspension bracket arranged at the middle of the extended support plate, the middle part of the suspension bracket is rotatably connected to the main shaft, the end of the main shaft is provided with a driving gear, and the two sides of the driving gear are meshed and connected with driven gears fixedly connected to the rotating shaft. The end of the suspension bracket is provided with a drive motor, and the output shaft of the drive motor is connected to the main shaft through a belt drive.

7. A textile fabric color fastness testing device according to claim 1, characterized in that: The extended supporting plate is provided with a support frame, the support frame is provided with a support slide bar, and the support slide bar is slidably connected to a support slide seat fixedly connected to the transverse moving plate.

8. A textile fabric color fastness testing device according to claim 7, characterized in that: The end portion of the supporting slide is provided with a limiting slide rod, and the end portion of the limiting slide rod is provided with a fixed block fixedly connected to the transverse moving plate. The middle portion of the limiting slide rod is slidably connected to a sliding sleeve, and a return spring is provided between the sliding sleeve and the supporting slide to drive the sliding sleeve to move in a direction away from the supporting slide. The side surface of the sliding sleeve is rotatably connected to a second deflection rod, and the end of the second deflection rod away from the sliding sleeve is rotatably connected to the limiting column, and the end of the transverse moving plate is rotatably connected to the first deflection rod, and the end of the first deflection rod away from the transverse moving plate is rotatably connected to the limiting column, and the end of the supporting frame is provided with a slot that cooperates with the limiting column.

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