Preparation method of a flame-retardant fabric

Abstract

The present invention relates to the technical field of flame-retardant fabric preparation, specifically to a preparation method of a flame-retardant fabric, which involves a fabric flame-retardant performance testing device, including a device main body and a clamping mechanism. The device main body is composed of a box body, a box door and a visible window opened on the box door. The middle parts of the left and right inner walls of the device main body are fixedly connected with support plates. A clamping mechanism is arranged on the front side wall of the support plate, and the clamping mechanism includes a support member. The support member is rotatably penetrated through the inside of the support plate, and the support member is composed of a rotating shaft and an L-shaped plate; the fabric is clamped and limited by the clamping mechanism, and it can be quickly fixed by laying and closing once, so as to maintain stability during subsequent testing; through the cooperation of the angle adjustment mechanism one and the clamping mechanism, the angle of the fabric sample is adjusted, and through the angle adjustment mechanism two, the angle of the ignition device is adjusted, which is convenient for conducting the vertical combustion test method experiment and the forty-five-degree combustion test method experiment.

Description

Technical Field

[0001] The present invention relates to the technical field of flame retardant fabric preparation, and particularly to a method for preparing a flame retardant fabric. Background Art

[0002] A flame retardant fabric is a fabric that has been specially treated or made of special materials. It can slow down the burning speed when in contact with a fire source and can even self-extinguish, thereby protecting the wearer from fire damage. Flame retardant fabrics can be divided into two categories: permanent flame retardant fabrics and post-finished flame retardant fabrics. Among them, post-finished flame retardant fabrics refer to coating a layer of flame retardant on the fabric or forming a layer of flame retardant film on the fabric surface through a chemical reaction to endow the fabric with flame retardant properties.

[0003] In the process of preparing the current post-finished flame retardant fabric, the following steps are usually involved: impregnating the prepared fabric, squeezing and drying, curing treatment, post-treatment, and finally testing the flame retardant performance of the treated fabric to detect whether the fabric sample meets the predetermined flame retardant standard; the current fabric flame retardant performance test is usually carried out through a test device. Usually, a fabric sample of a specified size is clamped by a plate-shaped fixture, fixed with clips and then hung in the test device, and then the ignition device is moved to the lower end of the fabric sample to ignite, and finally, it is taken out for measurement after the fabric flame goes out; however, first, the fixture needs to be clamped in the test device first and then placed inside the test device. The clamping steps are complex, resulting in low clamping efficiency. The hanging fixture and the fabric sample have low stability during the test, which will affect the test results; second, the device is not convenient for adjusting the angles of the fixture, the fabric sample and the ignition device, resulting in inconvenience for multi-angle testing, and the practicability of the device for multi-angle testing needs to be improved; finally, it takes a certain waiting time to measure the test results, and it is not convenient to quickly obtain the damage range value after combustion.

[0004] Therefore, in order to improve the clamping efficiency and stability during the test and improve the practicability of the device; the present invention provides a method for preparing a flame retardant fabric. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a method for preparing a flame retardant fabric, and the preparation method includes the following steps:

[0006] S1. Fabric preparation: Select natural fiber, synthetic fiber or their blended fabric as the base material, and pre-treat the fabric to remove surface impurities and grease.

[0007] S2. Fabric impregnation: Immerse the fabric pretreated in step S1 into the flame retardant solution, and control the impregnation time according to the thickness of the fabric and the concentration of the flame retardant.

[0008] S3. Extrusion and Drying: For the fabric soaked in step S2, remove the excess liquid through an extruder and dry it through a dryer.

[0009] S4. Curing Treatment: Carry out curing treatment on the fabric after extrusion and drying in step S3 to improve the adhesion and stability of the flame retardant. After the curing treatment is completed, naturally cool the fabric to room temperature.

[0010] S5. Post-treatment: Carry out softening finishing and wrinkle-resistant finishing on the fabric after curing treatment and natural cooling in step S4, and conduct a flame retardant performance test on the finished fabric.

[0011] During the process of the preparation method of the flame retardant fabric adopting the above step S5, it also specifically involves a fabric flame retardant performance testing device, which includes: a device main body and a clamping mechanism. The device main body is composed of a box body, a box door, and a visual window opened on the box door. And the middle parts of the left and right inner walls of the device main body are fixedly connected with support plates. A clamping mechanism is arranged on the front side wall of the support plate. And the clamping mechanism includes a support member. The support member is rotatably penetrated through the inside of the support plate, and the support member is composed of a rotating shaft and an L-shaped plate. A clamping seat one is fixedly connected to the top wall of the support member, and a clamping seat two is rotatably connected to the left side wall of the clamping seat one through a rotating shaft.

[0012] The rear side walls of the clamping seat one and the clamping seat two are both slidably connected with a clamping member one through a first spring, and the front side walls of the clamping seat one and the clamping seat two are both slidably connected with a clamping member two through a second spring. Both the clamping member one and the clamping member two are composed of a cross bar and an adjusting block fixed on the side wall of the cross bar.

[0013] An angle adjusting mechanism one for adjusting the test angle of the fabric is arranged on the inner bottom wall of the device main body, and a height adjusting mechanism is arranged on the angle adjusting mechanism one. An angle adjusting mechanism two for adjusting the test angle of the flame source is arranged on the height adjusting mechanism, and an ignition device is arranged on the angle adjusting mechanism two. A measuring mechanism is arranged on the clamping mechanism.

[0014] In a possible implementation manner, the adjusting block of the clamping member one is composed of a square block and two wedge blocks fixed on the front wall of the square block. The adjusting block of the clamping member two is composed of a square block and one wedge block fixed on the rear wall of the square block. And the two wedge blocks of the adjusting block of the clamping member one and the one wedge block of the adjusting block of the clamping member two are distributed alternately.

[0015] In a possible implementation manner, a positioning nail one is fixedly connected to the top wall of the clamping seat one, and a hole position adapted to the positioning nail one is opened on the clamping seat two. A plurality of positioning nails two are fixedly connected to the side walls of the clamping member one and the clamping member two on the clamping seat two, and hole positions adapted to the positioning nails two are opened on the top walls of the clamping member one and the clamping member two on the clamping seat one.

[0016] In a possible implementation manner, width adjusting members are slidably connected to both the first clamping seat and the second clamping seat, and the width adjusting member is composed of an extrusion block and a first positioning convex block fixed to the side wall of the extrusion block. The extrusion block of the width adjusting member is arrow-shaped on the side close to the first clamping member and the second clamping member, and the arrow-shaped outer wall of the extrusion block of the width adjusting member is slidably connected to the top wall of the wedge blocks of the first clamping member and the second clamping member. The second fixing convex block of the second clamping seat, the first clamping seat and the corresponding width adjusting member are commonly threadedly connected by a bolt.

[0017] In a possible implementation manner, the first angle adjusting mechanism includes an electric push rod, and the electric push rod is installed on the right inner wall of the equipment main body. The left output end of the electric push rod is fixedly connected with an L-shaped sliding seat. The bottom wall of the L-shaped sliding seat is slidably connected to the inner top wall of the equipment main body. A balance plate is fixedly connected to the middle of the L-shaped sliding seat, and a rack is fixed to the top wall of the L-shaped sliding seat. The top wall of the rack is meshed with a gear, and the rear side wall of the rack is slidably connected to the front side wall of the equipment main body. The front side wall of the gear is connected to the rear side wall of the shaft rod of the support member.

[0018] In a possible implementation manner, the height adjusting mechanism includes cylinder seats, and cylinder seats are symmetrically fixed to the front and rear of the top wall of the L-shaped sliding seat. The top walls of the cylinder seats are slidably connected with height adjusting plates through third springs. The side walls of the two height adjusting plates close to each other are commonly fixed with a supporting member, and the supporting member is composed of a rectangular section and semi-circular plates symmetrically arranged on the top of the rectangular section. An arc-shaped groove is opened on the top wall of the rectangular section of the supporting member. The left part of the bottom of the supporting member is inclined to the right, and the right part of the bottom wall of the supporting member is horizontal. A trapezoidal member is fixedly connected to the left inner wall of the equipment main body, and the right part of the top wall of the trapezoidal member is inclined to the right. The left part of the top wall of the trapezoidal member is horizontal.

[0019] In a possible implementation manner, the second angle adjusting mechanism includes a rotating seat. A rotating seat is slidably connected inside the arc-shaped groove on the top wall of the rectangular section of the supporting member, and the rotating seat is composed of a cylindrical section facing the front and back and a rectangular section fixed to the top of the cylindrical section. The ignition device is installed on the top wall of the rectangular section of the rotating seat. A regulating shaft is rotatably connected to the middle of the rotating seat, and the regulating shaft is fixedly penetrated and connected to the front and rear side walls of the supporting member.

[0020] In a possible implementation manner, a traction plate is fixedly connected to the right side wall of the regulating shaft, and the traction plate is slidably connected to the right inner wall of the equipment main body. A slot adapted to the traction plate is opened on the right inner wall of the equipment main body. An angle adjusting plate one is rotatably connected to the right side wall of the regulating shaft, and a slot adapted to the angle adjusting plate one is opened on the right side wall of the rotating seat. The angle adjusting plate one and the traction plate are connected by a return spring.

[0021] In a possible implementation manner, a motor is installed on the rear inner wall of the device main body, and an angle adjustment plate II is fixed to the front output end of the motor. The angle adjustment plate II is composed of an arc plate and a square bar fixed to the top wall of the arc plate. A positioning key is fixed to the right side wall of the square bar of the angle adjustment plate II. A positioning hole adapted to the positioning key is provided on the left side wall of the rectangular section of the rotating seat.

[0022] In a possible implementation manner, the measuring mechanism includes an operating rod, and the operating rod is slidably connected to the door of the device main body. A measuring ruler is slidably connected to the clamping member I and the clamping member II on the clamping seat II. A positioning block adapted to the operating rod is fixed to the top wall of the measuring ruler. Scale lines are provided on the top walls of the clamping member I, the clamping member II and the measuring ruler on the clamping seat II. Limiting keys are symmetrically attached to the front and rear of the right side wall of the measuring ruler, and the limiting keys are slidably connected to the clamping member I and the clamping member II on the clamping seat II through No. 4 springs.

[0023] Beneficial effects:

[0024] 1. Horizontally place the fabric sample on the top walls of the clamping seat I, the clamping member I and the clamping member II on the clamping seat I. Flip the clamping seat II close to the clamping seat I, and clamp and limit the fabric through the clamping mechanism. It can be quickly fixed with one laying and one closing, maintaining stability during subsequent tests. And before clamping fabric samples of different sizes specified by different test standards, adjust the width adjusting member to slide on the clamping seat I and the clamping seat II, so as to adjust the distance between the clamping member I and the clamping member II, facilitating the adjustment of the clamping size.

[0025] 2. Through the cooperation of the angle adjustment mechanism I and the clamping mechanism, the output end of the electric push rod moves leftward to drive, and the rack and gear cooperate to rotate the clamped fabric sample, realizing the adjustment of the angle of the fabric sample, facilitating the vertical combustion test method experiment and the 45-degree combustion test method experiment. Through the angle adjustment mechanism II, the angle adjustment plate I rotates 45 degrees close to the traction plate, driving the ignition device to rotate 45 degrees, so as to realize the combustion test of the fabric sample at an inclined 45-degree angle, facilitating the angle adjustment of the ignition device for the fabric sample when the device is performing various combustion test experiments, and increasing the practicability of the device.

[0026] 3. Through the cooperation of the angle adjustment mechanism I, the clamping mechanism and the height adjustment mechanism, when the clamping mechanism drives the fabric sample to rotate from the horizontal state to the vertical state, at the same time the electric push rod drives the ignition device to move, and when the ignition device is directly below the fabric sample, the vertical combustion test method is carried out. Through the adjustment and cooperation of the supporting member and the trapezoidal member of the height adjustment mechanism, the height adjustment of the ignition device is realized to adapt to the height required in the 45-degree combustion test method experiment.

[0027] 4. The measuring mechanism cooperates with the first clamping piece and the second clamping piece. The measuring ruler is moved through the operating rod to measure the damage range after the fabric sample burns, and the measurement scale of the damage range after burning can be directly read. It is safe, fast, and intuitive, facilitating the rapid acquisition of effective test information. There is no need for manual contact, reducing the safety hazard of scalding. Description of the Drawings

[0028] The following further details the specific embodiments of the present invention in conjunction with the drawings, where:

[0029] Figure 1 is the process flow chart of the present invention.

[0030] Figure 2 is the external structure schematic diagram of the equipment main body of a fabric flame retardancy testing device proposed by the present invention.

[0031] Figure 3 is the internal structure schematic diagram of the equipment main body of a fabric flame retardancy testing device proposed by the present invention.

[0032] Figure 4 is the partial structure schematic diagram of the support plate, clamping mechanism, and L-shaped sliding seat of a fabric flame retardancy testing device proposed by the present invention.

[0033] Figure 5 is Figure 4 the structure schematic diagram from another perspective.

[0034] Figure 6 is one of the partial structure schematic diagrams of the clamping mechanism of a fabric flame retardancy testing device proposed by the present invention.

[0035] Figure 7 is another partial structure schematic diagram of the clamping mechanism of a fabric flame retardancy testing device proposed by the present invention.

[0036] Figure 8 is the structure schematic diagram when the first clamping piece and the second clamping piece of a fabric flame retardancy testing device proposed by the present invention are adjusted.

[0037] Figure 9 is the structure schematic diagram of the height adjustment mechanism and the second angle adjustment mechanism of a fabric flame retardancy testing device proposed by the present invention.

[0038] Figure 10 is the exploded structure schematic diagram of the supporting piece and the rotating seat of a fabric flame retardancy testing device proposed by the present invention.

[0039] Figure 11 is Figure 3 the structure schematic diagram at position A in

[0040] Figure 12 isFigure 9 Schematic diagram of the structure at position B in the [specific context not provided].

[0041] In the figure: 1. Equipment main body; 2. Support plate; 3. Clamping mechanism; 31. Support member; 32. First clamping seat; 33. Second clamping seat; 34. First clamping piece; 35. Second clamping piece; 36. First positioning pin; 37. Second positioning pin; 38. Width adjusting member; 39. Bolt; 4. First angle adjusting mechanism; 41. Electric push rod; 42. L-shaped sliding seat; 43. Balance plate; 44. Rack; 45. Gear; 5. Height adjusting mechanism; 51. Cylinder base; 52. Height adjusting plate; 53. Supporting member; 54. Trapezoidal member; 6. Second angle adjusting mechanism; 61. Rotating seat; 62. Adjusting shaft; 63. Traction plate; 64. First angle adjusting plate; 65. Return spring; 66. Motor; 67. Second angle adjusting plate; 68. Positioning key; 69. Positioning hole; 7. Ignition device; 8. Measuring mechanism; 81. Operating rod; 82. Positioning block; 83. Measuring scale; 84. Limit key. Specific implementation manner

[0042] To make the above objects, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0043] Please refer to Figures 1 to 4 , a method for preparing a flame-retardant fabric, the preparation method comprising the following steps:

[0044] S1. Fabric preparation: Select natural fiber, synthetic fiber or their blended fabric as the base material, and pre-treat the fabric to remove surface impurities and grease.

[0045] S2. Fabric impregnation: Immerse the fabric pretreated in step S1 into the flame retardant solution, and control the impregnation time according to the thickness of the fabric and the concentration of the flame retardant.

[0046] S3. Extrusion and drying: For the fabric soaked in step S2, remove the excess liquid through an extruder and dry it through a dryer.

[0047] S4. Curing treatment: Perform curing treatment on the fabric after extrusion and drying in step S3 to improve the adhesion and stability of the flame retardant. After the curing treatment is completed, cool the fabric naturally to room temperature.

[0048] S5. Post-treatment: Perform softening finishing and wrinkle resistance finishing on the fabric after curing treatment and natural cooling in step S4, and perform flame retardant performance testing on the finished fabric.

[0049] In the process of preparing the flame-retardant fabric using the above-mentioned step S5, a fabric flame-retardant performance testing device is also specifically involved. The device includes: a device main body 1 and a clamping mechanism 3. The device main body 1 is composed of a box body, a box door, and a visible window opened on the box door. The middle parts of the left and right inner walls of the device main body 1 are fixedly connected with a support plate 2. The front side wall of the support plate 2 is provided with a clamping mechanism 3. The inner bottom wall of the device main body 1 is provided with an angle adjustment mechanism one 4 for adjusting the testing angle of the fabric. An altitude adjustment mechanism 5 is arranged on the angle adjustment mechanism one 4. An angle adjustment mechanism two 6 for adjusting the testing angle of the flame source is arranged on the altitude adjustment mechanism 5. An ignition device 7 is arranged on the angle adjustment mechanism two 6. The ignition device 7 is a prior art, and its specific structure and working principle will not be described here. A measuring mechanism 8 is arranged on the clamping mechanism 3.

[0050] First, conduct the fabric flame-retardant performance test inside the device main body 1. During the test, observe through the visible window of the device main body 1. Cut the fabric sample into the specified size according to the test standard requirements. Open the box door of the device main body 1. The support plate 2 plays a supporting role for the clamping mechanism 3. Clamp and limit the fabric sample by adjusting the clamping mechanism 3 to maintain stability during the test. Rotate and adjust the clamped fabric sample by adjusting the angle adjustment mechanism one 4. Adjust the altitude of the ignition device 7 by adjusting the altitude adjustment mechanism 5. Adjust the angle of the ignition device 7 by adjusting the angle adjustment mechanism two 6. This is convenient for conducting the vertical combustion test method experiment and the 45-degree combustion test method experiment, increasing the practicability of the device. Measure the damage range of the fabric sample after combustion through the measuring mechanism 8.

[0051] Please refer to Figure 3 、 Figure 4 and Figure 6 The clamping mechanism 3 includes a support member 31. The support member 31 is rotatably penetrated through the inside of the support plate 2. The support member 31 is composed of a rotating shaft (not shown in the figure) and an L-shaped plate. The top wall of the support member 31 is fixedly connected with a first clamping seat 32. The left side wall of the first clamping seat 32 is rotatably connected with a second clamping seat 33 through a rotating shaft.

[0052] Please refer to Figure 7 and Figure 8The rear side walls of clamping seat 1 32 and clamping seat 2 33 are slidably connected with clamping piece 1 34 through spring No. 1 (not shown in the figure), and the front side walls of clamping seat 1 32 and clamping seat 2 33 are slidably connected with clamping piece 2 35 through spring No. 2 (not shown in the figure). Clamping piece 1 34 and clamping piece 2 35 are both composed of adjustment blocks fixed by a cross bar and the side walls of the cross bar; the adjustment block of clamping piece 1 34 is composed of two wedge blocks fixed by a square and the front wall of the square, and the adjustment block of clamping piece 2 35 is composed of a wedge block fixed by a square and the rear wall of the square, and the two wedge blocks of the adjustment block of clamping piece 1 34 and one wedge block of the adjustment block of clamping piece 2 35 are alternately distributed.

[0053] See also Figure 6 The top wall of the clamping seat 1 32 is fixedly connected with a positioning pin 1 36, and the clamping seat 2 33 is provided with a hole that is compatible with the positioning pin 1 36. The side walls of the clamping piece 1 34 and the clamping piece 2 35 on the clamping seat 2 33 are fixedly connected with a plurality of positioning pins 2 37, and the top walls of the clamping piece 1 34 and the clamping piece 2 35 on the clamping seat 1 32 are provided with holes that are compatible with the positioning pins 2 37.

[0054] See also Figure 7 and Figure 8 A width adjusting piece 38 is slidably connected to both the clamping seat 1 32 and the clamping seat 2 33. The width adjusting piece 38 consists of an extrusion block and a No. 1 positioning protrusion fixed to the side wall of the extrusion block. The extrusion block of the width adjusting piece 38 is arrow-shaped on one side close to the clamping piece 1 34 and the clamping piece 2 35. The arrow-shaped outer wall of the extrusion block of the width adjusting piece 38 is slidably connected to the top wall of the wedge block of the clamping piece 1 34 and the clamping piece 2 35. The clamping seat 2 33, the clamping seat 1 32 and the corresponding No. 2 fixed protrusion of the width adjusting piece 38 are threadedly connected with a bolt 39.

[0055] See also Figures 3 to 5 The angle adjustment mechanism 4 includes an electric push rod 41, which is installed on the right inner wall of the equipment body 1, and the left output end of the electric push rod 41 is fixedly connected with an L-shaped sliding seat 42, the bottom wall of the L-shaped sliding seat 42 is slidably connected to the inner top wall of the equipment body 1, and the middle part of the L-shaped sliding seat 42 is fixedly connected with a balance plate 43, and the top wall of the L-shaped sliding seat 42 is fixed with a rack 44, and the top wall of the rack 44 is meshed with a gear 45, and the rear side wall of the rack 44 is slidably connected to the front side wall of the equipment body 1, and the front side wall of the gear 45 is connected to the rear side wall of the shaft of the support member 31.

[0056] Place the fabric sample horizontally on the top walls of the first clamping seat 32, the first clamping member 34 and the second clamping member 35 on the first clamping seat 32. Rotate the second clamping seat 33 closer to the first clamping seat 32. The first positioning pin 36 pierces the fabric sample and engages into the corresponding hole position of the second clamping seat 33. The second positioning pin 37 pierces the fabric sample and engages into the corresponding hole positions on the top walls of the first clamping member 34 and the second clamping member 35. The second clamping seat 33 corresponds to the first clamping seat 32, and the first clamping member 34 and the second clamping member 35 above the second clamping seat 33 correspond to the first clamping member 34 and the second clamping member 35 on the first clamping seat 32, clamping and limiting the fabric. It can be quickly fixed with one laying and one closing, maintaining stability during subsequent tests.

[0057] Before clamping fabric samples of different sizes specified by different test standards, by turning the bolt 39, adjust the width adjustment member 38 to slide on the first clamping seat 32 and the second clamping seat 33. Move the width adjustment member 38 upward to release the extrusion on the wedges of the first clamping member 34 and the second clamping member 35. The first clamping member 34 and the second clamping member 35 move closer to each other as the first spring and the second spring rebound. Move the width adjustment member 38 downward to squeeze the wedges of the first clamping member 34 and the second clamping member 35, and the first clamping member 34 and the second clamping member 35 move away from each other, thereby realizing the adjustment of the distance between the first clamping member 34 and the second clamping member 35, facilitating the adjustment of the clamping size and increasing the practicality of the device.

[0058] The output end of the electric push rod 41 moves to the left to drive the L-shaped sliding seat 42 to slide to the left on the inner bottom wall of the equipment main body 1, driving the rack 44 to move to the left. The movement of the rack 44 drives the gear 45 to rotate, and the gear 45 drives the support member 31 and the clamped fabric sample to rotate, thereby realizing the adjustment of the angle of the fabric sample, facilitating the vertical burning test method experiment and the forty-five-degree burning test method experiment.

[0059] Please refer to Figures 9 to 10 For the height adjustment mechanism 5, it includes a cylinder base 51. The cylinder bases 51 are symmetrically fixed to the top wall of the L-shaped sliding seat 42 front and back. The top walls of the cylinder bases 51 are both slidably connected to a height adjustment plate 52 through a third spring (not shown in the figure). The side walls of the two height adjustment plates 52 close to each other are jointly fixed with a supporting member 53. The supporting member 53 is composed of a rectangular section and semi-circular plates symmetrically arranged on the front and back of the top wall of the rectangular section. An arc-shaped groove is opened on the top wall of the rectangular section of the supporting member 53. The left part of the bottom of the supporting member 53 is inclined to the right, and the right part of the bottom wall of the supporting member 53 is horizontal. The left inner wall of the equipment main body 1 is fixedly connected with a trapezoidal member 54. The right part of the top wall of the trapezoidal member 54 is inclined to the right, and the left part of the top wall of the trapezoidal member 54 is horizontal.

[0060] Please refer to Figures 9 to 10, the angle adjustment mechanism II 6 includes a rotating seat 61. The rotating seat 61 is slidably connected inside the arc-shaped groove on the top wall of the rectangular section of the supporting member 53. The rotating seat 61 is composed of a cylindrical section facing front and back and a rectangular section fixed to the top wall of the cylindrical section. The ignition device 7 is installed on the top wall of the rectangular section of the rotating seat 61. A regulating shaft 62 is rotatably connected to the middle of the rotating seat 61, and the regulating shaft 62 is fixedly connected through the front and rear side walls of the supporting member 53.

[0061] Please refer to Figure 10 , a traction plate 63 is fixedly connected to the right side wall of the regulating shaft 62. The traction plate 63 is slidably connected to the right inner wall of the equipment main body 1. A slot adapted to the traction plate 63 is provided on the right inner wall of the equipment main body 1. An angle adjustment plate I 64 is rotatably connected to the right side wall of the regulating shaft 62. A slot adapted to the angle adjustment plate I 64 is provided on the right side wall of the rotating seat 61. The angle adjustment plate I 64 and the traction plate 63 are connected by a return spring 65.

[0062] Please refer to Figure 9 and Figure 11 , a motor 66 is installed on the rear inner wall of the equipment main body 1. An angle adjustment plate II 67 is fixed to the front output end of the motor 66. The angle adjustment plate II 67 is composed of an arc-shaped plate and a square bar fixed to the top wall of the arc-shaped plate. A positioning key 68 is fixedly connected to the right side wall of the square bar of the angle adjustment plate II 67. A positioning hole 69 adapted to the positioning key 68 is provided on the left side wall of the rectangular section of the rotating seat 61.

[0063] The L-shaped sliding seat 42 drives the height adjustment mechanism 5, the rotating seat 61 and the ignition device 7 to move. When the L-shaped sliding seat 42 drives the rotating seat 61 and the ignition device 7 to move to the middle of the equipment main body 1, the clamping mechanism 3 drives the fabric sample to rotate from the horizontal state to the vertical state. At this time, the ignition device 7 is located directly below the fabric sample, ignites the flame, applies it to the lower edge of the sample, and records the time required for the fabric sample to self-extinguish after removing the flame, so as to conduct the vertical burning test method.

[0064] If the 45-degree burning test method experiment is to be carried out, the ignition device 7 is driven to move leftward by the L-shaped sliding seat 42 until it exceeds the middle of the equipment main body 1. At this time, the bottom wall of the supporting member 53 gradually fits with the top wall of the trapezoidal member 54, and height adjustment is carried out along with the inclination of the top wall of the trapezoidal member 54. The height adjustment plate 52 slides upward on the top wall of the cylinder base 51, and the No. 3 spring on the top wall of the cylinder base 51 stretches to adapt to the height adjustment of the supporting member 53, so as to realize the height adjustment of the ignition device 7.

[0065] The L-shaped sliding seat 42 moves to push the rack 44 to move. The gear 45 rotates to drive the clamping mechanism 3 to rotate to the vertical state and then continue to rotate to an inclination angle of 45 degrees. At this time, after the L-shaped sliding seat 42 pushes the supporting member 53 to move to the horizontal surface of the top wall of the trapezoidal member 54, the height of the ignition device 7 no longer changes.

[0066] The arc-shaped plate of the second angle adjustment plate 67 closely adheres to the left arc-shaped side wall of the supporting member 53. The positioning key 68 on the square bar of the second angle adjustment plate 67 engages into the positioning hole 69 opened on the left side of the rotating seat 61. When the motor 66 rotates clockwise, it drives the second angle adjustment plate 67 and the rotating seat 61. The rotation of the rotating seat 61 drives the first angle adjustment plate 64 to rotate around the adjustment shaft 62, compressing the return spring 65. The traction plate 63 plays a role in limiting. The first angle adjustment plate 64 rotates by forty-five degrees and approaches the traction plate 63, driving the ignition device 7 to rotate by forty-five degrees, thereby realizing the combustion test on the fabric sample at an inclined angle of forty-five degrees.

[0067] Please refer to Figure 2 and Figure 12 As shown in, the measuring mechanism 8 includes an operating rod 81. The operating rod 81 is slidably connected to the door of the equipment main body 1. The first clamping member 34 and the second clamping member 35 on the second clamping seat 33 are jointly slidably connected to a measuring ruler 83. A positioning block 82 adapted to the operating rod 81 is fixed on the top wall of the measuring ruler 83. Scale lines are provided on the top walls of the first clamping member 34, the second clamping member 35 and the measuring ruler 83 on the second clamping seat 33. Limiting keys 84 are symmetrically attached to the front and rear sides of the right side wall of the measuring ruler 83. The limiting keys 84 are slidably connected to the first clamping member 34 and the second clamping member 35 on the second clamping seat 33 through the fourth springs up and down.

[0068] After the electric push rod 41 is reset and drives the fabric sample and the ignition device 7 to reset, the measuring mechanism 8 is used to measure the damage range after the fabric sample burns, which is convenient for quickly reading the effective test information. Insert the operating rod 81 from the outside of the door of the equipment main body 1 onto the positioning block 82 inside, and slide it to the right, driving the measuring ruler 83 to push the limiting key 84 to the right. The bottom wall of the measuring ruler 83 and the top wall of the limiting key 84 are both chamfered. When the measuring ruler 83 is pushed to the right, the limiting key 84 is pressed down and then releases the block on the measuring ruler 83. The measuring ruler 83 slides to the right to the burning position of the fabric sample. The measuring ruler 83 cooperates with the first clamping member 34 and the second clamping member 35 to directly read the scale of the damage range after burning, which is safe, fast and intuitive.

[0069] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0070] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A fabric flame retardancy testing device, comprising a device main body and a clamping mechanism, characterized in that: The main body of the device consists of a box body, a box door, and a visible window opened on the box door. The middle parts of the left and right inner walls of the main body of the device are fixedly connected with support plates. A clamping mechanism is arranged on the front side wall of the support plate. The clamping mechanism includes a support member. The support member is rotatably penetrated through the inside of the support plate. The support member consists of a rotating shaft and an L-shaped plate. A clamping seat one is fixedly connected to the top wall of the support member. The left side wall of the clamping seat one is rotatably connected with a clamping seat two through a rotating shaft; The rear side walls of the clamping seat one and the clamping seat two are both slidably connected with a clamping member one through a first spring. The front side walls of the clamping seat one and the clamping seat two are both slidably connected with a clamping two through a second spring. The clamping member one and the clamping two are both composed of a cross bar and an adjusting block fixed on the side wall of the cross bar; An angle adjusting mechanism one for adjusting the test angle of the fabric is arranged on the inner bottom wall of the main body of the device. A height adjusting mechanism is arranged on the angle adjusting mechanism one. An angle adjusting mechanism two for adjusting the test angle of the flame source is arranged on the height adjusting mechanism. An ignition device is arranged on the angle adjusting mechanism two. A measuring mechanism is arranged on the clamping mechanism; The angle adjusting mechanism one includes an electric push rod. The electric push rod is installed on the right inner wall of the main body of the device. The left output end of the electric push rod is fixedly connected with an L-shaped sliding seat. The bottom wall of the L-shaped sliding seat is slidably connected to the inner top wall of the main body of the device. A balance plate is fixedly connected to the middle of the L-shaped sliding seat. A rack is fixed on the top wall of the L-shaped sliding seat. The top wall of the rack is meshed with a gear. The rear side wall of the rack is slidably connected to the front side wall of the main body of the device. The front side wall of the gear is connected to the rear side wall of the shaft rod of the support member; The height adjusting mechanism includes a cylinder seat. Cylinder seats are symmetrically fixed on the front and rear of the top wall of the L-shaped sliding seat. The top walls of the cylinder seats are both slidably connected with a height adjusting plate through a third spring. A supporting member is fixedly connected to the side walls of the two height adjusting plates close to each other. The supporting member consists of a rectangular section and semi-circular plates symmetrically arranged on the front and rear of the top wall of the rectangular section. An arc-shaped groove is opened on the top wall of the rectangular section of the supporting member. The left part of the bottom of the supporting member is inclined to the right, and the right part of the bottom wall of the supporting member is horizontal. A trapezoidal member is fixedly connected to the left inner wall of the main body of the device. The right part of the top wall of the trapezoidal member is inclined to the right, and the left part of the top wall of the trapezoidal member is horizontal; Through the cooperation of the angle adjusting mechanism one, the clamping mechanism, and the height adjusting mechanism, when the clamping mechanism drives the fabric sample to rotate from a horizontal state to a vertical state, at the same time, the electric push rod drives the ignition device to move its position. When the ignition device is directly below the fabric sample, a vertical combustion test method is carried out; through the adjustment and cooperation of the supporting member and the trapezoidal member of the height adjusting mechanism, the height of the ignition device is adjusted to adapt to the height required in the 45-degree combustion test method experiment.

2. The fabric flame retardancy performance testing device according to claim 1, characterized in that, The adjusting block of the clamping member one consists of a square block and two wedge blocks fixed on the front wall of the square block. The adjusting block of the clamping two consists of a square block and one wedge block fixed on the rear wall of the square block. The two wedge blocks of the adjusting block of the clamping member one and the one wedge block of the adjusting block of the clamping two are distributed alternately.

3. The fabric flame retardancy performance testing device according to claim 1, characterized in that, A positioning pin one is fixedly connected to the top wall of the first clamping seat, and a hole position adapted to the positioning pin one is provided on the second clamping seat. A plurality of positioning pins two are fixedly connected to the side walls of the first clamping member and the second clamping member on the second clamping seat, and hole positions adapted to the positioning pins two are provided on the top walls of the first clamping member and the second clamping member on the first clamping seat.

4. The fabric flame retardancy test device according to claim 1, wherein, Width adjusting members are slidably connected to both the first clamping seat and the second clamping seat. The width adjusting member consists of a pressing block and a first positioning convex block fixed to the side wall of the pressing block. The side of the pressing block of the width adjusting member close to the first clamping member and the second clamping member is arrow-shaped, and the arrow-shaped outer wall of the pressing block of the width adjusting member is slidably connected to the top wall of the wedge blocks of the first clamping member and the second clamping member. A bolt is commonly threadedly connected to the second clamping seat, the first clamping seat, and the second positioning convex blocks of the corresponding width adjusting members.

5. A fabric flame retardancy performance testing device according to claim 1, characterized in that, The second angle adjusting mechanism includes a rotating seat. A rotating seat is slidably connected inside the arc-shaped groove on the top wall of the rectangular section of the supporting member. The rotating seat consists of a cylindrical section facing forward and backward and a rectangular section fixed to the top wall of the cylindrical section. The ignition device is installed on the top wall of the rectangular section of the rotating seat. A regulating shaft is rotatably connected to the middle of the rotating seat, and the regulating shaft is fixedly connected through the front and rear side walls of the supporting member.

6. The fabric flame retardancy testing device according to claim 5, characterized in that, A traction plate is fixedly connected to the right side wall of the regulating shaft, and the traction plate is slidably connected to the right inner wall of the equipment main body. A slot adapted to the traction plate is provided on the right inner wall of the equipment main body. An angle adjusting plate one is rotatably connected to the right side wall of the regulating shaft, and a slot adapted to the angle adjusting plate one is provided on the right side wall of the rotating seat. The angle adjusting plate one and the traction plate are connected by a return spring.

7. An apparatus for testing the flame retardancy of a fabric according to claim 5, characterized in that, A motor is installed on the rear inner wall of the equipment main body, and an angle adjusting plate two is fixed to the front output end of the motor. The angle adjusting plate two consists of an arc-shaped plate and a square bar fixed to the top wall of the arc-shaped plate, and a positioning key is fixed to the right side wall of the square bar of the angle adjusting plate two. A positioning hole adapted to the positioning key is provided on the left side wall of the rectangular section of the rotating seat.

8. A fabric flame retardancy performance testing device according to claim 1, characterized in that, The measuring mechanism includes an operating rod, and the operating rod is slidably connected to the door of the equipment main body. A measuring scale is slidably connected to the first clamping member and the second clamping member on the second clamping seat, and a positioning block adapted to the operating rod is fixed to the top wall of the measuring scale. Scale lines are provided on the top walls of the first clamping member, the second clamping member, and the measuring scale on the second clamping seat. Limiting keys are symmetrically attached to the front and rear sides of the right side wall of the measuring scale, and the limiting keys are slidably connected up and down to the first clamping member and the second clamping member on the second clamping seat through fourth springs.

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