Device and method for detecting flame-retardant fabric

Abstract

The invention discloses a flame-retardant fabric detection device and method, and relates to the technical field of fabric development.The flame-retardant fabric detection device comprises an operation cabinet, first supporting bases are fixedly installed on the outer walls of the four corners of the bottom of the operation cabinet, a working box is fixedly installed on one side of the operation cabinet, and second supporting bases are fixedly installed on the outer walls of the four corners of the bottom of the working box; the device further comprises a box door, a material receiving disc, a placing frame, a cloth clamp, an ignition rod, an igniter, a supporting plate, a first electric telescopic rod, a mounting frame, a first limiting plate, a second electric telescopic rod, a first clamping assembly, a hooking assembly, a connecting rope, a first distance sensor, a second distance sensor, a fixing assembly and a barb assembly. The box door is hinged to one side of one end of the working box, and the center area of the box door is made of a glass material; the receiving disc is horizontally arranged on the inner wall of the bottom of the working box; the method has the beneficial effects that the tension of the carbonized area of the burnt cloth is detected, the flame-retardant effect of the flame-retardant fabric is evaluated according to the tearing length, and the operation is convenient and fast.

Description

Technical Field

[0001] The present application relates to the technical field of fabric development, and in particular to a device and method for detecting flame-retardant fabrics. Background Art

[0002] In fields such as fire safety, aerospace, and industrial protection, performance testing of flame-retardant fabrics is a key component in ensuring the safety and reliability of end products. With the continuous improvement of public safety standards and the iterative development of new material technologies, the market demand for increasingly sophisticated testing of flame-retardant fabrics' flame retardancy durability, carbonization strength, and other indicators is becoming increasingly sophisticated. This not only requires the testing process to simulate real-world combustion scenarios, but also imposes stringent standards for the quantitative evaluation of the mechanical properties of the fabrics after combustion.

[0003] Currently, most existing flame-retardant fabric testing devices focus on temperature control during the combustion process, observing the carbonization state of the fabric through simple burning. However, existing testing methods rely solely on visual observation of the carbonized area after combustion, lacking accurate detection methods for the carbonized area. This makes it difficult to accurately detect the flame retardant effect of different fabrics, and is unable to determine the tear resistance of flame-retardant fabrics after combustion, resulting in a significant deviation between test results and actual flame retardant effect. Summary of the Invention

[0004] The present invention aims to address the shortcomings of the prior art by proposing a flame-retardant fabric detection device and method. Its advantages include: detecting the tensile force of the carbonized area of ​​the fabric after combustion, evaluating the flame-retardant effect of the flame-retardant fabric by tear length, and convenient operation.

[0005] In order to achieve the above objectives, the technical solution adopted in this application is: a detection device for flame-retardant fabrics, comprising: an operating cabinet, a support base 1 is fixedly installed on the outer walls of the four corners of the bottom of the operating cabinet, a working box is fixedly installed on one side of the operating cabinet, and a support base 2 is fixedly installed on the outer walls of the four corners of the bottom of the working box, and also includes: a box door, a receiving tray, a placement rack, a cloth clamp, a fire stick, an igniter, a support plate, an electric telescopic rod 1, an installation frame, a limit plate 1, an electric telescopic rod 2, a clamping assembly 1, a hooking assembly, a connecting rope, a distance sensor 1, a distance sensor 2, a fixing assembly and a barb assembly; the box door is hinged to one side of one end of the working box, and the central area of ​​the box door is made of glass material; the receiving tray is horizontally arranged on the bottom inner wall of the working box. ; The placement rack is horizontally fixedly installed in the center of the top inner wall of the working box, and a T-shaped placement opening is opened at the bottom of one end of the placement rack; the top of the cloth clamp is inserted into the placement opening, and a cloth fixing cavity extending in the vertical direction is formed between the inner walls on both sides of the cloth clamp, and cloth is vertically arranged in the cloth fixing cavity; the fire stick is horizontally fixedly installed in the middle position of the inner wall of one side of the working box; the igniter is horizontally fixedly installed in the middle position of the inner wall of one side of the working box, and the igniter is located directly below the fire stick; the support plate is horizontally fixedly installed between the middle positions of the inner walls of one end of the working box close to the door, and the support plate is located below the cloth; the electric telescopic rod is horizontally fixedly installed inside the other side of the working box The cam is mounted on a top side of the support frame, and the cam is mounted on a top side of the support frame, and the cam is mounted on a bottom side of the support frame. The puncture rod is used in conjunction with the above-mentioned puncture rod; the second electric telescopic rod is vertically fixedly installed on the outer wall of the bottom of the placement rack away from the box door; the clamping assembly is installed in the middle position of the top inner wall of one side of the working box, so as to be used for the clamping assembly to clamp the top of one side of the cloth; the hooking assembly is arranged at the bottom of the end of the cloth away from the box door, so as to fix the bottom of the other end of the cloth; the connecting rope is fixedly connected between the hooking assembly and the bottom of the second electric telescopic rod; a placement groove is provided in the middle position of the top of the support plate, and the placement groove is located on the side of the limit plate one away from the electric telescopic rod one, and the distance sensor one is fixedly installed on the bottom inner wall of the placement groove;The second distance sensor is fixedly mounted on the bottom of the second electric telescopic rod on the side away from the fabric. A baffle is fixedly mounted on the inner wall of the bottom of the other end of the working box, and the baffle is located directly below the second distance sensor. The fixing assembly is disposed within the mounting frame to fix the position of the first counterweight within the mounting frame. The barb assembly is mounted on the piercing rod and is used to lock the piercing rod after piercing the fabric through the barb assembly.

[0006] Preferably, the clamping assembly 1 includes: a second mounting plate, a limit block 1, a push rod, a limit block 2, a pull rod, a buffer spring 1, a clamping block and a buffer assembly, the second mounting plate 2 is horizontally fixedly installed between the top inner wall of one side of the working box and the outer wall of one side of the bottom of the placement rack, a mounting groove 1 is provided on the bottom side of the second mounting plate close to the fabric, an opening is provided in the middle position of the side of the cloth clamp close to the second mounting plate, the opening is arranged corresponding to the first mounting groove, the clamping block is slidably installed on the top of the first mounting groove away from the inner wall of one side of the fabric, the limit block 1 is fixedly installed on the end of the clamping block close to the box door away from the On one side of the cloth, one end of the push rod is horizontally fixedly installed on the bottom of the side of the clamping block away from the cloth, the inner wall of the installation slot 1 close to the end of the box door is provided with a slot, and the middle position of the installation plate 2 close to the end of the box door is provided with an opening, and the opening is arranged corresponding to the slot, and the limit block 2 is inserted into the slot, and the limit block 1 and the limit block 2 are both trapezoidal. One end of the pull rod is fixedly connected to the end of the limit block 2 close to the box door, and the other end of the pull rod passes through the slot and the opening in sequence, and the buffer spring 1 is horizontally fixedly installed between the limit block 2 and the inner wall of one end of the slot.

[0007] Preferably, the buffer assembly includes: a sleeve, an insertion rod and two buffer springs, one end of the sleeve is horizontally fixedly installed on the inner wall of one side of the mounting groove, one end of the insertion rod is fixedly installed on the top of the side of the clamping block away from the fabric, the other end of the insertion rod is inserted into the sleeve, and the second buffer spring is fixedly installed between the insertion rod and the sleeve.

[0008] Preferably, the fixing assembly includes: a clamping plate, three buffer springs and a closing plate, the clamping plate is vertically arranged in the mounting frame, the three buffer springs are horizontally fixedly installed between one side of the clamping plate and the inner wall of one side of the mounting frame, the counterweight block is located on the other side of the clamping plate, and a socket is opened at one end of the top of the mounting frame close to the box door, and the closing plate is vertically inserted into the socket.

[0009] Preferably, the barb assembly comprises: a plurality of barbs, and the barbs are fixedly mounted on the circumferential surface of the puncture rod in an equidistant array.

[0010] Preferably, limit bars are fixedly installed on both ends of the top of the support plate on one side close to the electric telescopic rod.

[0011] Preferably, the hooking assembly includes: a hook, a connector 1 and a connector 2, the hook is arranged in an inverted U shape, the open end of the hook is vertically upward and hooked on the bottom edge of the end of the cloth away from the box door, one side of the connector 1 is fixedly installed on one side of the hook, and the other side of the connector 1 close to the box door is provided with a rotating groove in a ring shape, one end of the connecting rope is fixedly connected to the bottom of the electric telescopic rod 2, the other end of the connecting rope is fixedly connected to one side of the connector 2, the other side of the connector 2 is arranged in a ring shape, and the other side of the connector 2 is plugged into and adapted to the rotating groove.

[0012] Preferably, a displacement scale is vertically fixedly installed at the middle position of the inner wall at the other end of the working box.

[0013] A method for detecting flame retardant fabrics comprises the following steps:

[0014] S1: The operating cabinet includes: an operating panel, an ignition button, a continuous combustion stop button, a smoldering stop button, a clear button, a flame adjustment knob, a start button, a return button, and a power switch. Cut the fabric, open the door, take out the fabric clamp, vertically load the fabric into the fabric fixing cavity of the fabric clamp, hook the hook vertically upward from the lower edge of the fabric, and after embedding the fabric, insert the top of the fabric clamp into the T-shaped placement port of the placement rack, insert the other side of the connector two into the rotating slot of the connector one, push the push rod to move the clamping block toward the fabric, and clamp the top of one side of the fabric. Then the operator replaces the counterweight block one according to the unit area mass of the sample, starts the electric telescopic rod one, pushes the piercing rod to pierce the fabric, and installs the plate one and the limit plate one to clamp the bottom of one end of the fabric, and then closes the door;

[0015] S2: Turn on the power switch of the operation cabinet, press the ignition button to ignite the ignition rod, adjust the igniter flame height using the flame adjustment knob, observe through the glass area of ​​the cabinet door, the operation panel displays the flame height value in real time, press the clear button to reset the relevant data on the operation panel, set the ignition time through the operation panel, and press the save button on the operation panel;

[0016] S3: After the flame stabilizes, press the start button on the operation cabinet, the igniter automatically moves to the bottom of the fabric, manually calibrate the position through the operation panel, and then start the combustion test. At the same time, the countdown is synchronously displayed on the operation panel. After the combustion is completed, press the return button, the igniter returns to its original position, and the operation panel displays the afterburning time. No manual operation is required. When the afterburning stops, press the afterburning stop button. The operation panel displays the smoldering time. After the smoldering stops, press the smoldering stop button and record the afterburning time and smoldering time on the operation panel.

[0017] S4: The operator starts the second electric telescopic rod and pulls the end of the fabric away from the door upwards through the connecting rope until the installation frame is separated from the support plate and suspended in the air;

[0018] S5: Distance sensor 2 is mounted on the baffle, and distance sensor 1 is mounted on the bottom of the installation frame. The data measured by distance sensor 1 and distance sensor 2 are displayed in real time on the operation panel. The data measured by distance sensor 2 shows the shortened length of electric telescopic rod 2, and the data measured by distance sensor 1 shows the vertical movement height of the installation frame. The difference between the two values ​​is then divided by two to obtain the length from the edge of the carbonized area of ​​the fabric to the end of the tearing.

[0019] S6: After the test is completed, manually open the door, pull the lever to release the clamp on the fabric, and then remove the fabric;

[0020] S7: Turn off the power switch of the operating cabinet, take out the receiving tray, and clean up the combustion residue.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] (1) The present invention proposes a device and method for detecting flame-retardant fabrics, which comprises an operating cabinet, a supporting base 1, a working box, a supporting base 2, a box door, a receiving tray, a placement rack, a cloth clamp, a fire stick, an igniter, a support plate, an electric telescopic rod 1, a mounting frame, a limiting plate 1, an electric telescopic rod 2, a clamping assembly 1, a hooking assembly, a connecting rope, a distance sensor 1, a distance sensor 2, a fixing assembly and a barb assembly. First, the box door is opened to take out the cloth clamp, and the cloth is vertically loaded into the cloth fixing cavity of the cloth clamp. Then, the hooking assembly is used to hook one end of the cloth and then inserted into the T-shaped placement port. The cloth is clamped by the clamping assembly 1, and the counterweight block is adjusted according to the unit area mass of the cloth and fixed together with the fixing assembly. Then, the electric telescopic rod 1 is used to hold the cloth in place. Rod one, makes the puncture rod pierce the fabric and is stuck by the barb assembly, and the mounting plate one cooperates with the limit plate one to clamp the fabric; after closing the box door, start the igniter, and after the flame stabilizes for seconds and burns for seconds, the igniter resets, and then starts the electric telescopic rod two to pull up the mounting frame and make it suspended, so that the carbonized area is torn, and the moving height of the mounting frame and the shortened length of the electric telescopic rod two are measured by distance sensor one and distance sensor two respectively. The latter data is subtracted from the former data and then divided by two to obtain the tearing length, and the flame retardant effect is evaluated by the tearing length. If the length is within a reasonable range, it meets the standard, and the shorter the length, the better the flame retardant effect. This realizes the tensile test of the carbonized area of ​​the fabric after combustion, and the flame retardant effect of the flame retardant fabric is evaluated by the tearing length, which is convenient to operate.

[0023] (2) The present invention proposes a device and method for detecting flame-retardant fabrics, which comprises a mounting plate 2, a limit block 1, a push rod, a limit block 2, a pull rod, a buffer spring 1, a clamping block and a buffer assembly. When the fabric needs to be clamped, the push rod is pushed to drive the clamping block close to the fabric, the limit block 1 moves with the clamping block and compresses the limit block 2 to make way through the action of the inclined surface. After the limit block 1 is separated from the limit block 2, the buffer spring 1 is reset to push the limit block 2 to clamp the limit block 1. When unlocking, the pull rod is pulled to drive the limit block 2 to move and release the limit. The clamping block is reset under the action of the buffer assembly, and the clamping of the fabric is released, thereby achieving the clamping of the fabric and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a perspective view of the present invention.

[0025] Figure 2 It is a three-dimensional diagram of the interior of the working box in the present invention.

[0026] Figure 3 It is a three-dimensional diagram highlighting the placement rack in the present invention.

[0027] Figure 4 This is a three-dimensional diagram highlighting the clamping component 1 in the present invention.

[0028] Figure 5 This is a cross-sectional view highlighting the buffer spring 1 in the present invention.

[0029] Figure 6 It is a cross-sectional view of the buffer assembly in the present invention.

[0030] Figure 7 This is a three-dimensional diagram highlighting the buffer spring three in the present invention.

[0031] Figure 8 This is a three-dimensional diagram highlighting the puncture rod in the present invention.

[0032] Figure 9 It is a three-dimensional diagram highlighting the hooking component in the present invention.

[0033] In the figure: 1. Operation cabinet; 9. Support base 1; 10. Working box; 11. Support base 2; 12. Box door; 13. Receiving tray; 14. Placement rack; 15. Cloth clamp; 16. Fire stick; 17. Igniter; 18. Support plate; 19. Cloth; 20. Electric telescopic rod 1; 21. Mounting frame; 22. Counterweight 1; 23. Mounting plate 1; 24. Connecting rope; 25. Distance sensor 1; 26. Piercing rod; 27. Limit plate 1; 28. Electric telescopic rod 2; 29. ​​Displacement scale Scale; 30. Distance sensor 2; 31. Baffle; 201. Mounting plate 2; 202. Limit block 1; 203. Push rod; 204. Limit block 2; 205. Pull rod; 206. Buffer spring 1; 207. Clamping block; 301. Sleeve; 302. Insert rod; 303. Buffer spring 2; 401. Clamping plate; 402. Buffer spring 3; 403. Closing plate; 501. Barb; 601. Limit strip; 701. Hook; 702. Connector 1; 703. Connector 2. DETAILED DESCRIPTION

[0034] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0035] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0036] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0037] One of the preferred embodiments of this application is as follows: Figures 1 to 9As shown, a flame retardant fabric detection device includes: an operating cabinet 1, the outer walls of the four corners of the bottom of the operating cabinet 1 are fixedly installed with a support base 9, a working box 10 is fixedly installed on one side of the operating cabinet 1, and the outer walls of the four corners of the bottom of the working box 10 are fixedly installed with a support base 2 11, and also includes: a box door 12, a material receiving tray 13, a placement rack 14, a cloth clamp 15, a fire stick 16, an igniter 17, a support plate 18, an electric telescopic rod 120, an installation frame 21, a limit plate 127, an electric telescopic rod 28, a clamping component 1, a hooking component, a connecting rope 24, a distance sensor 1 25, a distance sensor 2 30, a fixing component and a barb component; the box door 12 is hinged to one side of one end of the working box 10, and the central area of ​​the box door 12 is made of glass material; The tray 13 is horizontally arranged on the bottom inner wall of the working box 10; the placement rack 14 is horizontally fixedly installed in the center of the top inner wall of the working box 10, and a T-shaped placement opening is opened at the bottom of one end of the placement rack 14; the top of the cloth clamp 15 is inserted into the placement opening, and a cloth fixing cavity extending in the vertical direction is formed between the inner walls on both sides of the cloth clamp 15, and a cloth 19 is vertically arranged in the cloth fixing cavity; the ignition rod 16 is horizontally fixedly installed in the middle position of the inner wall of one side of the working box 10; the igniter 17 is horizontally fixedly installed in the middle position of the inner wall of one side of the working box 10, and the igniter 17 is located directly below the ignition rod 16; the support plate 18 is horizontally fixedly installed between the middle position of the inner wall of one end of the working box 10 near the box door 12, and the support plate 18 is located at the cloth 19; an electric telescopic rod 20 is horizontally fixedly installed on the inner wall of the other side of the working box 10 near one end of the box door 12, and the electric telescopic rod 20 is located above the support plate 18; a mounting frame 21 is arranged between the electric telescopic rod 20 and the cloth 19, and the mounting frame 21 is slidably installed on one side of the top of the support plate 18, and a counterweight block 22 is provided in the mounting frame 21. A mounting plate 23 is fixedly installed on the side of the mounting frame 21 close to the cloth 19, and a puncture rod 26 is fixedly installed on the side of the mounting plate 23 close to the cloth 19, and the puncture rod 26 is arranged in a needle shape at one end close to the cloth 19; a limit plate 27 is vertically fixedly installed in the middle position of the top of the support plate 18, and the limit plate 27 is located on the side of the cloth 19 away from the electric telescopic rod 20, and the limit A limiting opening is provided at the top of one side of plate 127, and limiting plate 127 is used in conjunction with puncture rod 26; electric telescopic rod 28 is vertically fixedly installed on the outer wall of the bottom of placement rack 14 away from the end of box door 12; the clamping assembly is installed in the middle position of the top inner wall of one side of working box 10, so as to be used for clamping the top of one side of a pair of cloth 19 of the clamping assembly; the hooking assembly is provided at the bottom of the end of the cloth 19 away from the box door 12, so as to fix the bottom of the other end of the cloth 19; the connecting rope 24 is fixedly connected between the hooking assembly and the bottom of electric telescopic rod 28; a placement slot is provided at the middle position of the top of support plate 18, and the placement slot is located on the side of limiting plate 12 away from electric telescopic rod 120, and distance sensor 1 25 is fixedly installed on the bottom inner wall of the placement slot;A second distance sensor 30 is fixedly mounted on the bottom of the side of the second electric telescopic rod 28 away from the fabric 19. A baffle 31 is fixedly mounted on the inner wall of the bottom of the other end of the work box 10, directly below the second distance sensor 30. A fixing assembly is disposed within the mounting frame 21 to secure the first counterweight 22 within the mounting frame 21. A barb assembly is mounted on the piercing rod 26 and is used to engage the barb assembly after the piercing rod 26 has pierced the fabric 19.

[0038] When in use, first open the box door 12, take out the cloth clip 15, vertically load the cloth 19 into the cloth fixing cavity of the cloth clip 15, and insert the top of the cloth clip 15 into the T-shaped placement port, clamp the top of one side of the cloth 19 through the clamping component 1, and at the same time fix the bottom of the end of the cloth 19 away from the box door 12 by the hooking component, put a suitable counterweight block 22 into the installation frame 21 according to the detection requirements, and fix its position with the fixing component. At this time, the counterweight block 22, the installation frame 21, etc. The total weight of the structure is based on the mass per unit area of ​​the fabric 19, so the weight of the counterweight block 22 needs to be adjusted. Start the electric telescopic rod 20, push the mounting frame 21 to slide on the support plate 18, so that the piercing rod 26 pierces the fabric 19, and the barb assembly clamps the fabric 19. At the same time, the mounting plate 23 and the limit plate 27 cooperate to clamp the fabric 19. After closing the door 12, operate the operating cabinet 1, start the igniter 17, and ignite the flame with the fire stick 16. After the flame stabilizes for 30 seconds, , the igniter 17 is moved to the bottom of the fabric 19 for a timed combustion test; after 12 seconds, the igniter 17 returns to its original position, completing the fabric combustion test, starting the electric telescopic rod 28, pulling the connecting rope 24 and one end of the fabric 19 away from the box door 12 until the mounting frame 21 is lifted and suspended. At this time, the stretched carbonized area between the hook assembly and the piercing rod 26 is torn. At this time, the distance sensor 2 30 hits the baffle 31, and the measured data is the shortened length of the electric telescopic rod 28, and the distance sensor 1 25 hits the bottom of the mounting frame 21. The measured data is the vertical movement height of the mounting frame 21, and the moving distance is displayed in real time on the operating cabinet 1. The two are then subtracted and divided by two to obtain the torn length of the fabric 19. If the torn length is within a reasonable range, it indicates that the flame retardant effect meets the standard. At the same time, the smaller the tear length, the better the flame retardant effect. The tensile test of the carbonized area of ​​the fabric 19 after combustion is realized, and the flame retardant effect of the flame retardant fabric is evaluated by the tear length, which is convenient to operate.

[0039] For further reference, Figure 3-Figure 5, the clamping assembly includes: a mounting plate 201, a limit block 202, a push rod 203, a limit block 204, a pull rod 205, a buffer spring 206, a clamping block 207 and a buffer assembly. The mounting plate 201 is fixedly installed horizontally between the top inner wall of one side of the working box 10 and the outer wall of the bottom side of the placement rack 14. A mounting groove 1 is provided on the bottom side of the mounting plate 201 close to the cloth 19. The cloth clip 15 is provided with an opening in the middle position of the side close to the mounting plate 201. The opening is arranged corresponding to the mounting groove 1. The clamping block 207 is slidably installed on the inner wall of the side of the top of the mounting groove away from the cloth 19. The limit block 202 is fixedly installed on the clamping block 207 close to the box One end of the door 12 is away from the side of the cloth 19, and one end of the push rod 203 is horizontally fixedly installed on the bottom of the side of the clamping block 207 away from the cloth 19. A slot is provided on the inner wall of the end of the installation groove 1 close to the box door 12, and an opening is provided in the middle position of the installation plate 201 close to the end of the box door 12. The opening is arranged corresponding to the slot, and the limit block 204 is inserted into the slot. The limit block 1 202 and the limit block 2 204 are both trapezoidally arranged. One end of the pull rod 205 is fixedly connected to the end of the limit block 2 204 close to the box door 12, and the other end of the pull rod 205 passes through the slot and the opening in turn. The buffer spring 1 206 is horizontally fixedly installed between the limit block 2 204 and the inner wall of one end of the slot.

[0040] The operator pushes the push rod 203, and the push rod 203 drives the clamping block 207 to move toward the direction close to the cloth 19. At this time, the limit block 1 202 moves synchronously with the clamping block 207. When the limit block 1 202 interacts with the inclined surface of the limit block 2 204, the limit block 204 moves in the slot toward the direction close to the box door 12 and compresses the buffer spring 1 206. When the limit block 1 202 moves to disengage from the limit block 2 204, the buffer spring 1 206 recovers its deformation and pushes the limit block 2 204. Reset, at this time the clamping block 207 is in close contact with the cloth 19, and the cloth 19 is clamped. When it needs to be unlocked, pull the pull rod 205, and the pull rod 205 drives the limit block 204 to move toward the direction close to the box door 12, so that the limit block 204 no longer blocks the limit block 1 202. Under the action of the buffer assembly, the clamping block 207 moves away from the cloth 19 and resets, thereby releasing the clamping state of the cloth 19 and achieving clamping of the cloth 19, which is convenient for subsequent operations and easy to operate.

[0041] For further reference, Figure 4 and Figure 6 The buffer assembly includes: a sleeve 301, an insertion rod 302 and a second buffer spring 303. One end of the sleeve 301 is horizontally fixedly installed on the inner wall of one side of the installation groove, one end of the insertion rod 302 is fixedly installed on the top of the clamping block 207 away from the cloth 19, and the other end of the insertion rod 302 is inserted into the sleeve 301. The second buffer spring 303 is fixedly installed between the insertion rod 302 and the sleeve 301.

[0042] When in use, when pushing the push rod 203 to move the clamping block 207 toward the direction close to the cloth 19, the insertion rod 302 moves synchronously with the clamping block 207, the insertion rod 302 slides in the sleeve 301 and stretches the buffer spring 2 303, and the buffer spring 2 303 produces elastic deformation. When the pull rod 205 is pulled to unlock, the limit block 204 no longer blocks the limit block 1 202, and the buffer spring 2 303 restores its deformation, pulling the insertion rod 302 to slide in the sleeve 301, thereby driving the clamping block 207 to move away from the cloth 19 and reset, so that the entire clamping assembly 1 returns to its initial state.

[0043] For further reference, Figure 2-Figure 3 and Figure 7-Figure 8 The fixing assembly includes: a clamping plate 401, a buffer spring three 402 and a closing plate 403. The clamping plate 401 is vertically arranged in the installation frame 21. The buffer spring three 402 is horizontally fixed between one side of the clamping plate 401 and the inner wall of one side of the installation frame 21. The counterweight block 22 is located on the other side of the clamping plate 401. A socket is opened at one end of the top of the installation frame 21 close to the box door 12, and the closing plate 403 is vertically inserted into the socket.

[0044] First, push the clamping plate 401 toward the inner wall of one side of the installation frame 21, so that the clamping plate 401 compresses the buffer spring three 402 to make room for the counterweight block 22, and then place the counterweight block 22 of appropriate specifications into the installation frame 21, and place it on the side of the clamping plate 401 away from the buffer spring three 402, and then release the clamping plate 401. The buffer spring three 402 pushes the clamping plate 401 toward the counterweight block 22 under the action of the elastic force until the clamping plate 401 is tightly against the counterweight block 22, thereby achieving preliminary fixation of the counterweight block 22, and finally align the closing plate 403 vertically with the socket at the top of the installation frame 21 near the box door 12 end, and insert it into the socket to complete further fixation of the counterweight block 22, so as to prevent the counterweight block 22 from being displaced in the installation frame 21 during the detection process, thereby preventing it from affecting the detection.

[0045] For further reference, Figure 7 and Figure 8 The barb assembly includes: a plurality of barbs 501, and the barbs 501 are fixedly installed on the circumferential surface of the puncture rod 26 in an equidistant array.

[0046] When the electric telescopic rod 20 pushes the mounting frame 21 to move the puncture rod 26 toward the cloth 19, manual assistance is provided to make the front end of the puncture rod 26 contact the cloth 19 first. As the puncture rod 26 continues to advance, the cloth 19 is pierced, and then the barbs 501 clamp the cloth 19 to prevent the puncture rod 26 from detaching from the cloth 19, thereby achieving a secure hook connection with the cloth 19.

[0047] For further reference, Figure 7-Figure 8 Limiting strips 601 are fixedly installed on both ends of one side of the top of the support plate 18 close to the electric telescopic rod 20.

[0048] When the electric telescopic rod 20 is started and pushes the installation frame 21 to move toward the fabric 19, the installation frame 21 slides, and the limit bar 601 limits the left and right deviation of the installation frame 21, ensuring that the installation frame 21 moves smoothly along a straight line, thereby ensuring that the puncture rod 26 on the installation frame 21 is always aligned with the preset puncture position of the fabric 19. The limit bar 601 plays a guiding and anti-deviating role throughout the process, ensuring the stability and accuracy of the movement of the installation frame 21.

[0049] For further reference, Figure 9 The hooking assembly includes: a hook 701, a connector 1 702 and a connector 2 703. The hook 701 is set in an inverted U shape, and the open end of the hook 701 is vertically upward and hooked on the bottom edge of the end of the cloth 19 away from the box door 12. One side of the connector 1 702 is fixedly installed on one side of the hook 701, and the other side of the connector 1 702 close to the box door 12 is provided with a ring-shaped rotating groove. One end of the connecting rope 24 is fixedly connected to the bottom of the electric telescopic rod 28, and the other end of the connecting rope 24 is fixedly connected to one side of the connector 2 703. The other side of the connector 2 703 is set in a ring shape, and the other side of the connector 2 703 is plugged into the rotating groove.

[0050] The cloth 19 is loaded into the cloth clip 15, and the open end of the hook 701 is hooked vertically upward from below the bottom edge of the other end of the cloth 19, so that the edge of the cloth 19 is embedded in the U-shaped groove of the hook 701, ensuring that the hook 701 and the cloth 19 are firmly connected. Then the top of the cloth clip 15 is inserted into the T-shaped placement port, and the opening direction of the rotating groove is facing the box door 12. Then, the other side of the connector 2 703 is inserted into the rotating groove. When the electric telescopic rod 28 is shortened, the connecting rope 24 drives the connector 2 703 to be pulled upward, and the annular end of the connector 2 703 slides in a circle along the inner wall of the rotating groove, so that the connector 1 7 02 and the second connector 703 form a rotatable connection structure. As the connecting rope 24 continues to pull, the hook 701 drives the other end of the fabric 19 to move upward until the mounting frame 21 is suspended. At this time, the fabric 19 is in a tensioned state, and the carbonized area is subjected to the preset tension and tears. After the test is completed, the connection between the second connector 703 and the rotating groove is released to complete the disassembly. This structure ensures the effective transmission of tension through the cooperation between the rotating groove and the second connector 703, and allows the second connector 703 to rotate freely when the force direction changes, thereby improving the accuracy of the test data and the service life of the components.

[0051] For further reference, Figure 2-Figure 3 A displacement scale 29 is vertically fixedly installed at the middle position of the inner wall of the other end of the working box 10.

[0052] When in use, read the reading of the bottom edge of the cloth 19 at the position of the displacement scale 29 as the initial position. When the electric telescopic rod 28 is shortened to drive the cloth 19 to be pulled upward until the mounting frame 21 is suspended, read the reading at the position of the bottom edge of the cloth 19 again. Subtract the two readings to obtain the shortened distance of the electric telescopic rod 28. The operator suspends the counterweight block 22 and other structures according to the mass per unit area of ​​the cloth 19, and then detects the moving distance through the distance sensor 1 25 and the distance sensor 2 30. The data after detection is displayed in real time on the operation cabinet 1. At the same time, the operator can refer to the displacement scale 29 to observe the readings after the movement starts and stops to prevent the operation cabinet 1 from malfunctioning, thereby affecting the accuracy of the data. The operator can observe and record at any time through the box door 12 to ensure that the displacement data of each test is consistent and accurate.

[0053] like Figures 1 to 9 As shown, a method for detecting flame retardant fabrics includes the following steps:

[0054] Step 1: The operating cabinet 1 includes: an operating panel, an ignition button, a continuous burning stop button, a smoldering stop button, a clear button, a flame adjustment knob, a start button, a return button, and a power switch. Cut the cloth 19 to a size of 300mm×80mm, open the door 12, take out the cloth clip 15, and vertically install the cloth 19 into the cloth fixing cavity of the cloth clip 15. Hook the hook 701 vertically upward from the lower edge of the cloth 19. After inserting the cloth 19, insert the top of the cloth clip 15 into the placement rack. 14, insert the other side of connector 2 703 into the rotating groove of connector 1 702, push the push rod 203, move the clamping block 207 toward the cloth 19, and clamp the top of one side of the cloth 19. Then, the operator replaces the counterweight block 22 according to the unit area mass of the sample, starts the electric telescopic rod 20, pushes the piercing rod 26 to pierce the cloth 19, installs the plate 1 23 and the limit plate 1 27 to clamp the bottom of one end of the cloth 19, and then closes the box door 12;

[0055] Step 2: Turn on the power switch of the operating cabinet 1, press the ignition button to ignite the ignition rod 16, adjust the flame height of the igniter 17 to 40 mm using the flame adjustment knob, observe through the glass area of ​​the door 12, and the operation panel will display the flame height value in real time. Press the clear button to reset the relevant data on the operation panel to zero, set the ignition time to 12 seconds through the operation panel, and press the save setting on the operation panel;

[0056] Step 3: Wait 30 seconds for the flame to stabilize, then press the start button of the operating cabinet 1. The igniter 17 will automatically move to the position directly below the fabric 19. Manually calibrate the position through the operating panel, and then start a 12-second combustion test. At the same time, the countdown is synchronously displayed on the operating panel. After the combustion is completed, press the return button, the igniter 17 returns to its original position, and the operating panel displays the afterburning time. No manual operation is required. When the afterburning stops, press the afterburning stop button. The operating panel displays the smoldering time. After the smoldering stops, press the smoldering stop button and record the afterburning time and smoldering time on the operating panel.

[0057] Step 4: The operator starts the electric telescopic rod 28 and pulls the end of the fabric 19 away from the door 12 upward through the connecting rope 24 until the mounting frame 21 is separated from the support plate 18 and suspended in the air;

[0058] Step 5: Distance sensor 2 30 is mounted on baffle 31, and distance sensor 1 25 is mounted on the bottom of mounting frame 21. The data measured by distance sensor 1 25 and distance sensor 2 30 are displayed in real time on the operation panel. The data measured by distance sensor 2 30 shows the shortened length of electric telescopic rod 2 28, and the data measured by distance sensor 1 25 shows the vertical movement height of mounting frame 21. The difference between the two is then subtracted and divided by two to obtain the length from the edge of the carbonized area of ​​fabric 19 to the end of the tear.

[0059] Step 6: After the test is completed, manually open the box door 12, pull the pull rod 205, unclamp the fabric 19, and then remove the fabric 19;

[0060] Step 7: Turn off the power switch of the operating cabinet 1, take out the receiving tray 13, and clean up the combustion residue.

[0061] Working principle: When using, first open the box door 12, take out the cloth clip 15, vertically load the cloth 19 into the cloth fixing cavity of the cloth clip 15, and insert the top of the cloth clip 15 into the T-shaped placement port; hook the open end of the hook 701 vertically upward from below the bottom edge of the other end of the cloth 19, so that the edge of the cloth 19 is embedded in the hook 701, and then insert the annular end of the connector 2 703 into the rotating groove of the connector 1 702 to complete the connection between the hook assembly and the cloth 19, and then push the push rod 203 to drive the clamping block 207 to move toward the direction of the cloth 19 to clamp the cloth 19. During this process, the inclined surfaces of the limit block 1 202 and the limit block 2 204 interact with each other to limit The positioning block 204 compresses the buffer spring 1 206. After the positioning block 1 202 is separated from the positioning block 204, the buffer spring 1 206 is reset to clamp the clamping block 207. At the same time, the insertion rod 302 slides in the sleeve 301 to compress the buffer spring 2 303, providing a buffer for the clamping process. The clamping plate 401 is pushed to compress the buffer spring 3 402. After the counterweight block 1 22 is inserted, the clamping plate 401 is loosened to make it rest against the counterweight block 1 22. The closing plate 403 is then inserted into the socket to fix it. The electric telescopic rod 1 20 is started to push the piercing rod 26 to pierce the cloth 19. With manual assistance, the barb 501 is stuck to the cloth 19 after passing through the cloth 19. After closing the box door 12, the operating cabinet 1 is operated to start the igniter. 17. Use the fire stick 16 to ignite the flame. After the flame stabilizes for 30 seconds, move the igniter 17 to the bottom of the cloth 19 for a 12-second timed combustion test. After the completion, the igniter 17 returns to its original position. After the combustion test is over, start the electric telescopic rod 28, pull the connecting rope 24 and the cloth 19 upward away from one end of the door 12, until the mounting frame 21 is lifted and suspended. At this time, the stretched carbonized area between the hook assembly and the piercing rod 26 is torn. At this time, the distance sensor 2 30 hits the baffle 31, and the measured data is the shortened length of the electric telescopic rod 28. The distance sensor 1 25 hits the bottom of the mounting frame 21, and the measured data is the vertical movement height of the mounting frame 21. 1 displays the measured data in real time, then subtracts the two and divides by two to obtain the torn length of the fabric 19. If the torn length is within a reasonable range, it indicates that the flame retardant effect meets the standard. At the same time, the smaller the tear length, the better the flame retardant effect. At the same time, the operator can refer to the displacement scale 29 to observe the fabric 19 and the reading of the position of the pulled-up end to prevent the operation panel or the distance sensor 2 30 from malfunctioning and affecting the accuracy of the data. After the test is completed, pull the pull rod 205 to disengage the limit block 204 from the limit, and then remove the fabric 19, thereby realizing the tensile test of the carbonized zone of the fabric 19 after combustion, and evaluating the flame retardant effect of the flame retardant fabric by the tear length, which is convenient to operate.

[0062] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A flame retardant fabric detection device, comprising: An operating cabinet (1), wherein the outer walls of the four corners of the bottom of the operating cabinet (1) are all fixedly mounted with a support base (9), a working box (10) is fixedly mounted on one side of the operating cabinet (1), and the outer walls of the four corners of the bottom of the working box (10) are all fixedly mounted with a support base (11), characterized in that it also includes: Box door (12): the box door (12) is hinged to one side of one end of the working box (10), and the central area of ​​the box door (12) is made of glass; Material receiving tray (13): the material receiving tray (13) is horizontally arranged on the bottom inner wall of the working box (10); A placement rack (14): the placement rack (14) is fixedly installed horizontally at the center of the top inner wall of the working box (10), and a T-shaped placement opening is opened at the bottom of one end of the placement rack (14); Cloth clamp (15): the top of the cloth clamp (15) is inserted into the placement opening, and a cloth fixing cavity extending in a vertical direction is formed between the inner walls on both sides of the cloth clamp (15), and the cloth (19) is vertically arranged in the cloth fixing cavity; Fire starter (16): the fire starter (16) is fixedly mounted horizontally at the middle position of the inner wall of one side of the working box (10); Igniter (17): the igniter (17) is fixedly mounted horizontally on the middle position of the inner wall of one side of the working box (10), and the igniter (17) is located directly below the ignition rod (16); Support plate (18): the support plate (18) is horizontally fixedly installed between the middle positions of the inner wall of one end of the two sides of the working box (10) close to the box door (12), and the support plate (18) is located below the cloth (19); Electric telescopic rod 1 (20): the electric telescopic rod 1 (20) is horizontally fixedly installed on one end of the inner wall of the other side of the working box (10) close to the box door (12), and the electric telescopic rod 1 (20) is located above the support plate (18); Mounting frame (21): The mounting frame (21) is arranged between the electric telescopic rod (20) and the cloth (19), the mounting frame (21) is slidably mounted on one side of the top of the support plate (18), a counterweight (22) is arranged in the mounting frame (21), a mounting plate (23) is fixedly mounted on one side of the mounting frame (21) close to the cloth (19), a puncture rod (26) is fixedly mounted on one side of the mounting plate (23) close to the cloth (19), and one end of the puncture rod (26) close to the cloth (19) is arranged in a needle shape; Limiting plate 1 (27): The limiting plate 1 (27) is vertically fixedly installed at the middle position of the top of the supporting plate (18), and the limiting plate 1 (27) is located on the side of the cloth (19) away from the electric telescopic rod 1 (20). A limiting opening is provided on the top of one side of the limiting plate 1 (27), and the limiting plate 1 (27) is used in conjunction with the puncture rod (26); Electric telescopic rod 2 (28): the electric telescopic rod 2 (28) is vertically fixedly installed on the outer wall of one end of the bottom of the placement rack (14) away from the box door (12); Clamping assembly 1: the clamping assembly is installed at the middle position of the top inner wall of one side of the working box (10) so as to be used for clamping the top of one side of the cloth (19) by the clamping assembly; Hooking assembly: the hooking assembly is arranged at the bottom of one end of the cloth (19) away from the box door (12) to fix the bottom of the other end of the cloth (19); Connecting rope (24): the connecting rope (24) is fixedly connected between the hook assembly and the bottom of the second electric telescopic rod (28); Distance sensor 1 (25): a placement slot is provided in the middle of the top of the support plate (18), the placement slot is located on the side of the limit plate 1 (27) away from the electric telescopic rod 1 (20), and the distance sensor 1 (25) is fixedly installed on the bottom inner wall of the placement slot; Distance sensor 2 (30): the distance sensor 2 (30) is fixedly mounted on the bottom of the side of the electric telescopic rod 2 (28) away from the cloth (19), and a baffle (31) is fixedly mounted on the inner wall of the bottom of the other end of the working box (10), and the baffle (31) is located directly below the distance sensor 2 (30); Fixing assembly: The fixing assembly is arranged in the installation frame (21) to fix the position of the counterweight block (22) in the installation frame (21); Barb assembly: The barb assembly is mounted on the puncture rod (26) and is used to allow the puncture rod (26) to be stuck after piercing the cloth (19) through the barb assembly.

2. A flame retardant fabric detection device according to claim 1, characterized in that: The clamping assembly 1 includes: a second mounting plate (201), a limiting block 1 (202), a push rod (203), a limiting block 2 (204), a pull rod (205), a buffer spring 1 (206), a clamping block (207) and a buffer assembly. The second mounting plate (201) is fixedly installed horizontally between the top inner wall of one side of the working box (10) and the outer wall of one side of the bottom of the placement rack (14). A mounting groove 1 is provided at the bottom of the second mounting plate (201) on a side close to the cloth (19). An opening is provided at the middle position of the side close to the second mounting plate (201). The opening is arranged corresponding to the mounting groove 1. The clamping block (207) is slidably installed on the inner wall of the top of the first mounting groove away from the cloth (19). The limiting block 1 (202) is fixedly installed on a side of the clamping block (207) close to the box door (12). The end of the push rod (203) is fixedly mounted horizontally on the bottom of the side of the clamping block (207) away from the cloth (19). The inner wall of the one end of the installation slot close to the box door (12) is provided with a slot. The middle position of the one end of the installation plate (201) close to the box door (12) is provided with an opening. The opening is arranged corresponding to the slot. The second limit block (204) is inserted into the slot. The one limit block (202) and the second limit block (204) are both arranged in a trapezoidal shape. One end of the pull rod (205) is fixedly connected to the end of the second limit block (204) close to the box door (12). The other end of the pull rod (205) passes through the slot and the opening in sequence. The buffer spring (206) is fixedly mounted horizontally between the second limit block (204) and the inner wall of one end of the slot.

3. A flame retardant fabric detection device according to claim 2, characterized in that: The buffer assembly comprises: a sleeve (301), an insertion rod (302) and a second buffer spring (303); one end of the sleeve (301) is horizontally fixedly mounted on the inner wall of one side of the mounting groove; one end of the insertion rod (302) is fixedly mounted on the top of the side of the clamping block (207) away from the cloth (19); the other end of the insertion rod (302) is inserted into the sleeve (301); and the second buffer spring (303) is fixedly mounted between the insertion rod (302) and the sleeve (301).

4. The flame retardant fabric detection device according to claim 1, characterized in that: The fixing assembly includes: a clamping plate (401), a buffer spring three (402) and a closing plate (403), wherein the clamping plate (401) is vertically arranged in the installation frame (21), the buffer spring three (402) is horizontally fixedly installed between one side of the clamping plate (401) and the inner wall of one side of the installation frame (21), the counterweight block one (22) is located on the other side of the clamping plate (401), and a socket is provided at one end of the top of the installation frame (21) close to the box door (12), and the closing plate (403) is vertically inserted into the socket.

5. The flame retardant fabric detection device according to claim 1, characterized in that: The barb assembly comprises: a plurality of barbs (501), wherein the barbs (501) are fixedly mounted on the circumferential surface of the puncture rod (26) in an equidistant array.

6. The flame retardant fabric detection device according to claim 1, characterized in that: Limiting strips (601) are fixedly mounted on both ends of one side of the top of the support plate (18) close to the electric telescopic rod (20).

7. The flame retardant fabric detection device according to claim 1, characterized in that: The hooking assembly comprises: a hook (701), a connector 1 (702) and a connector 2 (703), wherein the hook (701) is arranged in an inverted U shape, the open end of the hook (701) is vertically upward and hooked on the bottom edge of the end of the cloth (19) away from the box door (12), one side of the connector 1 (702) is fixedly installed on one side of the hook (701), and the other side of the end of the connector 1 (702) close to the box door (12) is provided with a rotating groove arranged in an annular shape, one end of the connecting rope (24) is fixedly connected to the bottom of the electric telescopic rod 2 (28), and the other end of the connecting rope (24) is fixedly connected to one side of the connector 2 (703), the other side of the connector 2 (703) is arranged in an annular shape, and the other side of the connector 2 (703) is plugged into and adapted to the rotating groove.

8. The flame retardant fabric detection device according to claim 1, characterized in that: A displacement scale (29) is vertically fixedly installed at the middle position of the inner wall of the other end of the working box (10).

9. A method for detecting flame retardant fabrics, characterized in that: The following steps are involved: S1: The operating cabinet (1) includes: an operating panel, an ignition button, a continuous combustion stop button, a smoldering stop button, a clear button, a flame adjustment knob, a start button, a return button and a power switch. Cut the cloth (19), open the box door (12), take out the cloth clamp (15), vertically load the cloth (19) into the cloth fixing cavity of the cloth clamp (15), hook the hook (701) vertically upward from the lower edge of the cloth (19), and after the cloth (19) is embedded, insert the top of the cloth clamp (15) into the T-shaped placement opening of the placement rack (14), and The other side of the connector 2 (703) is inserted into the rotating groove of the connector 1 (702), and the push rod (203) is pushed to move the clamping block (207) toward the cloth (19) to clamp the top of one side of the cloth (19). Then, the operator replaces the counterweight block 1 (22) according to the unit area mass of the sample, starts the electric telescopic rod 1 (20) to push the piercing rod (26) to pierce the cloth (19), and installs the plate 1 (23) and the limit plate 1 (27) to clamp the bottom of one end of the cloth (19), and then closes the box door (12); S2: Turn on the power switch of the operation cabinet (1), press the ignition button to ignite the ignition rod (16), adjust the flame height of the igniter (17) by using the flame adjustment knob, observe through the glass area of ​​the box door (12), the operation panel displays the flame height value in real time, press the clear button to reset the relevant data of the operation panel, set the ignition time through the operation panel, and press the save setting on the operation panel; S3: After the flame is stabilized, press the start button of the operating cabinet (1), the igniter (17) automatically moves to the position just below the cloth (19), manually calibrate the position through the operating panel, and then start the combustion test. At the same time, the countdown is synchronously displayed on the operating panel. After the combustion is completed, press the return button, the igniter (17) returns to its original position, and the operating panel displays the afterburning time. No manual operation is required. When the afterburning stops, press the afterburning stop button. The operating panel displays the smoldering time. After the smoldering stops, press the smoldering stop button and record the afterburning time and smoldering time on the operating panel. S4: The operator starts the second electric telescopic rod (28) and pulls the end of the cloth (19) away from the door (12) upward through the connecting rope (24) until the mounting frame (21) is separated from the support plate (18) and suspended in the air; S5: The distance sensor 2 (30) is hit on the baffle (31), and the distance sensor 1 (25) is hit on the bottom of the installation frame (21), and the data measured by the distance sensor 1 (25) and the distance sensor 2 (30) are displayed in real time on the operation panel. The data measured by the distance sensor 2 (30) shows the shortened length of the electric telescopic rod 2 (28), and the data measured by the distance sensor 1 (25) shows the vertical moving height of the installation frame (21). Then, the two are subtracted and divided by two to obtain the length from the edge of the carbonized area of ​​the cloth (19) to the tearing end; S6: After the test is completed, the box door (12) is manually opened, the pull rod (205) is pulled to release the clamping of the fabric (19), and then the fabric (19) is removed; S7: Turn off the power switch of the operating cabinet (1), take out the receiving tray (13), and clean up the combustion residue.

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