Device for testing flame retardance of flexible porous polymer material

Abstract

The invention provides a flexible porous polymer material flame retardant property testing device which comprises a main case, a first combustion detection cavity is formed in the top of the interior of the main case, a second combustion detection cavity is formed in the bottom of the interior of the main case, a waste box is arranged at one end of the interior of the second combustion detection cavity, an access door is arranged on the outer wall of the main case, and the access door and the waste box are oppositely arranged; the sample wafer manufacturing assembly is arranged on the top surface of the mainframe box, and the sample wafer manufacturing assembly is used for manufacturing a sample wafer of the flexible porous polymer in a slitting manner; the material receiving assembly is horizontally arranged at one end in the first combustion detection cavity in a sliding manner, and the material receiving assembly is used for receiving and outputting a sample wafer; the movable material guide assembly comprises a material guide seat, a cutting part and a transverse and longitudinal stretching part; according to the invention, the sample can be continuously and automatically output, so that flame-retardant tests in different states can be met, the test range is wider, and the test precision is higher.

Description

Technical Field

[0001] The invention relates to the technical field of flexible polymer testing, and in particular to a flame retardant performance testing device for a flexible porous polymer material. Background Art

[0002] Flexible porous polymer materials include rubber, flexible plastics, etc. Flexible porous polymers are a type of polymer material with unique structure and properties, which has the following characteristics: Porosity: The material has a rich pore structure inside, and the size, shape and distribution of these pores can be regulated according to the synthesis method and conditions. The presence of pores gives the material a larger specific surface area, which can provide more active sites for the adsorption, transmission and reaction of substances. Flexible skeleton: The polymer skeleton has a certain flexibility, which means that the molecular chains or structural units can move or deform relatively freely. This flexible structure enables the material to undergo changes in morphology or structure under external stimuli (such as temperature, pressure, solvent, etc.), thereby affecting its performance;

[0003] The flame retardant performance of flexible porous polymers is an important indicator. After the flexible porous polymers are manufactured, flame retardant tests need to be performed. The current flame retardant testing process has the following shortcomings:

[0004] 1. During the test, only a single horizontal flame test and a vertical flame test are performed. During the test, manual auxiliary ignition, manual replacement of material position, and manual clamping and replacement of materials are required. The whole process is inefficient and the test safety is not high;

[0005] 2. During the test, the flexible porous polymer did not deform, which could not reflect the deformation flame retardant performance of the flexible porous polymer. The reliability of a single direct ignition test is not high. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a flame retardant performance testing device for a flexible porous polymer material, which solves the problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A flame retardant performance testing device for a flexible porous polymer material comprises a main box, the top of which is a first combustion detection chamber, the bottom of which is a second combustion detection chamber, a waste box is arranged at one end of the second combustion detection chamber, and an inspection door is arranged on the outer wall of the main box, the inspection door and the waste box are arranged opposite to each other;

[0009] A sample making component is arranged on the top surface of the main box, and is used for cutting and making samples of the flexible porous polymer;

[0010] A material receiving assembly is horizontally slidably disposed at one end of the first combustion detection chamber, and is used to receive and output the sample;

[0011] A movable material guide assembly comprises a material guide seat, a cutting component, and a transverse and longitudinal stretching component. One end of the material guide seat is rotatably connected to the material receiving assembly. One end of the interior of the material guide seat is an introduction zone, and the other end of the interior is a combustion zone. The top, bottom and outer end of the combustion zone are all open structures. The portion of the sample in the combustion zone is a test piece. A second conveying roller and a cutting component are installed inside the introduction zone; transverse and longitudinal stretching components are installed inside the combustion zone, and an integrated probe is installed at the combustion zone; the integrated probe is used to detect whether the test piece is burning.

[0012] When the combustion test is completed, the movable material guide assembly needs to perform an update loading action. The specific update loading action is: the movable material guide assembly rotates downward, the cutting component cuts off the tested test piece and makes the tested test piece fall onto the waste plate, and the second conveying roller inputs a new sample piece into the combustion area;

[0013] A horizontal flame spraying assembly is horizontally slidably mounted at the other end of the first combustion detection chamber;

[0014] A vertical flame spraying assembly is vertically slidably mounted inside the second combustion detection chamber;

[0015] A closed combustion assembly is arranged on the outer wall of the vertical flame spraying assembly. The closed combustion assembly is an openable and closable structure. The outer wall of the closed combustion assembly is connected to the smoke test assembly.

[0016] The flame retardant performance test device includes the following states:

[0017] In the first state, the movable material guide assembly is in a horizontal state, and the horizontal flame spraying assembly sprays flames horizontally to the end of the test piece;

[0018] In the second state, the movable material guide assembly is in a horizontal state, the vertical flame spraying assembly sprays flame vertically upward to the bottom surface of the test piece, and the transverse and longitudinal stretching component stretches the sample piece horizontally;

[0019] In the third state, the movable material guide assembly is in a vertical state, and the vertical flame spraying assembly sprays flame vertically upward to the end of the test piece;

[0020] In the fourth state, the movable material guide assembly is in a vertical state, the transverse and longitudinal stretching components push the test piece outwardly in the longitudinal direction and bulge, and the transverse flame spraying assembly sprays flame horizontally to the bulging part of the test piece;

[0021] In the fourth state, the movable material guide assembly is in a vertical state, the closed combustion assembly is closed outside the combustion area of ​​the material guide seat, and the vertical flame spraying assembly and the horizontal flame spraying assembly synchronously spray flames to the test piece to make the test piece burn to analyze the combustion flue gas composition.

[0022] Furthermore, the sample production component includes a placement table, a transverse slide rail is installed on the top of the placement table, and a slitting saw is slidably installed on the outer wall of the transverse slide rail.

[0023] Furthermore, the material receiving assembly includes a fixed seat, a material receiving arc seat, and a first conveying roller. The fixed seat is arranged at one end inside the first combustion detection chamber. The side cross-section of the fixed seat is H-shaped. The material receiving arc seat is installed at one end inside the fixed seat. The first conveying roller is installed at the top inside the fixed seat. The first conveying roller is used to convey the sample.

[0024] Furthermore, the side section of the material guide seat is H-shaped, and connecting plates are provided on both side surfaces of one end of the material guide seat. The outer end of the connecting plate is rotatably connected to the fixed seat and a flip motor is installed at the rotating connection; a cleaning fan is installed in the inlet area of ​​the material guide seat, and the cleaning fan is used to clean dust on the upper and lower surfaces of the sample; the cleaning fan, the second conveying roller and the cutting component are arranged in sequence along the conveying direction.

[0025] Furthermore, the cutting component includes a main board body, a cutter is provided at one end of the main board body, and a pressure strip is provided at the other end. The main board body is rotatably installed in the constraint frame and a switching motor is installed at the rotating connection. The two ends of the constraint frame are connected to the driving rod, and the driving rod is arranged on the surface of the material guide seat.

[0026] Furthermore, a U-shaped notch is provided inside the combustion zone, and guide wheels are symmetrically provided at the output end of the combustion zone; the transverse and longitudinal stretching components include an outer frame, an inner frame, and a top seat, the outer frame is axially slidably provided on the bottom surface of the material guide seat, the inner frame is axially slidably installed inside the outer frame, the top seat is vertically slidably installed inside the inner frame, the top surface of the top seat is an arc surface structure, a clamping groove is provided on the inner side surface of the top seat, and pressure blocks are installed on the top and bottom of the clamping groove;

[0027] In the second state, the cutting component presses down the inner end of the positioning test piece, the outer end of the test piece extends into the clamping groove, and the inner frame moves outward and stretches horizontally to stretch the test piece horizontally;

[0028] In the fourth state, the top seat is located in the middle of the test piece, and the top seat extends outward to protrude from the test piece.

[0029] Furthermore, the transverse flame-throwing assembly includes a transverse flame-throwing head, a first slide plate and a first movable seat. The first slide plate is vertically slidably arranged on the inner wall of the main box, the bottom surface of the first slide plate is horizontally slidably installed with the first movable seat, the interior of the first movable seat is installed with a first transverse screw, the external thread of the first transverse screw is sleeved with a transverse flame-throwing head, and the transverse flame-throwing head is slidably installed in the first movable seat.

[0030] Furthermore, the vertical flame spraying assembly includes a vertical flame spraying head, a second slide plate and a second movable seat. The second slide plate is vertically slidably arranged on the inner wall of the main box. The second movable seat is horizontally slidably installed on the surface of the second slide plate. A second transverse screw is installed inside the second movable seat. The external thread of the second transverse screw is sleeved with the vertical flame spraying head, and the vertical flame spraying head is slidably installed in the second movable seat.

[0031] Further, the closed combustion assembly includes a closed cover and a support plate, the support plate is fixed to the bottom outer wall of the vertical flame head, the closed cover is symmetrically hinged on both sides of the support plate, the bottom of the closed cover is provided with an avoidance hole adapted to the vertical flame head, and the side of the closed cover located on one side is provided with a through hole, and the through hole is arranged opposite to the top seat; the smoke test assembly includes an exhaust valve, an exhaust fan and a smoke analyzer, the surface of the closed cover is installed with an exhaust valve, the outside of the exhaust valve is connected to the exhaust fan, and the outlet end of the exhaust fan is connected to the smoke analyzer;

[0032] In the fourth state, the two groups of closed covers are closed outside the combustion zone, the vertical flame spray head vertically extends between the two groups of closed covers, and the horizontal flame spray head passes through the through hole.

[0033] Furthermore, an air intake valve is installed on the surface of the closed cover, and the outside of the air intake valve is connected to a carbon dioxide storage tank; when the closure detection is completed, the carbon dioxide storage tank quickly discharges low-temperature carbon dioxide into the closed cover to extinguish the fire.

[0034] The present invention provides a flame retardant performance testing device for flexible porous polymer materials. Compared with the prior art, it has the following beneficial effects:

[0035] 1. The material receiving component can automatically receive the rubber sample and output the rubber sample to the movable material guiding component for subsequent combustion test; at the same time, the material receiving component can store longer samples for subsequent continuous multiple combustion tests;

[0036] 2. The design of the movable material guide component can achieve the following effects: it can be in a horizontal state, and the horizontal flame spraying component and the vertical flame spraying component can move synchronously to facilitate the horizontal flame spraying test at the end of the sample and the vertical flame spraying test at the bottom of the sample; after a certain combustion performance test is completed, the cutting component can be used to cut off the tested test piece, and then the material receiving component and the second conveying roller can add new samples to the combustion area to automatically update the test piece to meet the needs of continuous automatic testing, without the need to manually place the samples one by one for testing; the material guide seat and the material receiving component are rotatably connected. When the test piece is cut off, the material guide seat can be adjusted to a vertical state, and the material guide seat will face the waste box for material receiving. The vertical state of the material guide seat is also convenient for the cut test piece to fall under its own weight; when it is necessary to perform a vertical flame spraying test on the end of the sample, the material guide seat is first rotated downward to a vertical state, and then the material receiving component and the material guide seat are translated to the top of the vertical flame spraying component, so that the automatic vertical flame spraying test of the end of the sample can be realized;

[0037] 3. The setting of the closed combustion component can close the combustion area. In this way, the horizontal flame spray component and the vertical flame spray component can be used for dual-point synchronous ignition, so that the test piece can burn quickly and produce enough smoke. The smoke is extracted in the closed area, and the smoke test component can analyze the smoke to determine whether the combustion smoke of the sample meets the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 The schematic diagram of the structure of the flame retardant performance testing device of the flexible porous polymer material of the present invention is shown;

[0040] Figure 2 A schematic diagram of the internal cross-sectional structure of the mainframe box of the present invention is shown;

[0041] Figure 3 A schematic diagram of the structure of a horizontal movable material guide assembly of the present invention is shown;

[0042] Figure 4 A schematic structural diagram of a vertically movable material guiding assembly of the present invention is shown;

[0043] Figure 5 It shows a schematic diagram of the structure of the horizontal flame spray head of the present invention spraying flames horizontally on the end of the test piece;

[0044] Figure 6 The schematic diagram of the structure of the horizontal flame spraying assembly of the present invention is shown;

[0045] Figure 7 The schematic diagram of the structure of the transverse and longitudinal stretching components of the present invention is shown;

[0046] Figure 8 A schematic diagram of the structure of the top seat in the extended state of the present invention is shown;

[0047] Fig. 9 A schematic diagram of the structure of the cutting component of the present invention is shown;

[0048] Fig.10 A schematic diagram of the connection structure between the vertical flame spraying assembly and the closed combustion assembly of the present invention is shown;

[0049] Fig.11 A schematic diagram of the structure of the enclosed cover of the present invention is shown;

[0050] Fig.12 A schematic diagram of the vertical flame spraying state of the bottom surface of the test piece of the present invention is shown;

[0051] Fig.13 It shows a schematic structural diagram of a vertical flame spraying test state at the end of a test piece of the present invention;

[0052] Fig.14 It shows a schematic structural diagram of the arc-shaped convex part of the test piece of the present invention in a horizontal flame spraying test state;

[0053] Fig.15 A schematic diagram of the structure of the sealing cover in a closed state of the present invention is shown;

[0054] As shown in the figure: 1. Main chassis, 11. First combustion detection chamber, 12. Second combustion detection chamber, 14. Waste box, 13. Inspection door, 2. Sample production assembly, 21. Placement table, 22. Transverse slide rail, 23. Slitting saw, 3. Material receiving assembly, 31. Fixed seat, 32. Material receiving arc seat, 33. First conveying roller, 4. Movable material guide assembly, 41. Material guide seat, 411. Inlet area, 412. Combustion area, 42. Connecting plate, 421. Flip motor, 43. Cleaning fan, 44. Second conveying roller, 45. Cutting component, 451. Constraint frame, 452. Main board, 453. Switching motor, 454. Cutter, 455. Pressure strip, 456. Driving rod, 46. Integrated probe Head, 47, guide wheel, 5, horizontal and vertical stretching components, 51, outer frame, 52, inner frame, 521, lifting gear, 53, top seat, 531, clamping groove, 532, back tooth groove, 54, pressing block, 6, horizontal flame spraying assembly, 61, horizontal flame spraying head, 62, first slide plate, 63, first movable seat, 64, first transverse screw, 7, vertical flame spraying assembly, 71, vertical flame spraying head, 72, second slide plate, 73, second movable seat, 74, second transverse screw, 8, closed combustion assembly, 81, support plate, 82, closed cover, 821, avoidance hole, 822, perforation, 83, exhaust valve, 84, exhaust fan, 85, flue gas analyzer, 85, intake valve, 86, carbon dioxide storage tank. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] In order to solve the technical problems in the background technology, a flame retardant performance testing device for flexible porous polymer materials is provided as follows:

[0057] Combination Figure 1-Figure 15 As shown, a flame retardant performance testing device for a flexible porous polymer material provided by the present invention comprises a main box 1, the top of which is a first combustion detection chamber 11, the bottom of which is a second combustion detection chamber 12, a waste box 14 is arranged at one end of the second combustion detection chamber 12, and an inspection door 13 is arranged on the outer wall of the main box, and the inspection door 13 is arranged opposite to the waste box 14;

[0058] A sample sheet making component 2, which is arranged on the top surface of the main chassis 1, and is used for cutting and making samples of the flexible porous polymer;

[0059] A material receiving assembly 3 is horizontally slidably disposed at one end of the first combustion detection chamber 11, and the material receiving assembly 3 is used to receive and output the sample;

[0060] The movable material guide assembly 4 comprises a material guide seat 41, a cutting component 45, and a transverse and longitudinal stretching component. One end of the material guide seat 41 is rotatably connected to the material receiving assembly 3. One end of the interior of the material guide seat 41 is an introduction area 411, and the other end of the interior is a combustion area 412. The top, bottom and outer end of the combustion area 412 are all open structures. The portion of the sample in the combustion area 412 is a test piece. A second conveying roller 44 and a cutting component 45 are installed inside the introduction area 411; a transverse and longitudinal stretching component 5 is installed inside the combustion area 412, and an integrated probe 46 is installed at the combustion area 412; the integrated probe 46 is used to detect whether the test piece is burning;

[0061] When the combustion test is completed, the movable material guide assembly 4 needs to perform an update loading action, and the update loading action is specifically as follows: the movable material guide assembly 4 rotates downward, the cutting component 45 cuts off the tested test piece and makes the tested test piece fall onto the waste plate, and the second conveying roller 44 inputs a new sample piece into the combustion zone 412;

[0062] A horizontal flame spraying assembly 6, which is laterally slidably mounted at the other end of the first combustion detection chamber 11;

[0063] A vertical flame spraying assembly 7, which is vertically slidably mounted inside the second combustion detection chamber 12;

[0064] A closed combustion assembly 8 is arranged on the outer wall of the vertical flame spraying assembly 7. The closed combustion assembly 8 is an openable and closable structure. The outer wall of the closed combustion assembly 8 is connected to the smoke test assembly.

[0065] The flame retardant performance test device includes the following states:

[0066] In the first state, the movable material guide assembly 4 is in a horizontal state, and the horizontal flame spraying assembly 6 sprays flames horizontally to the end of the test piece;

[0067] In the second state, the movable material guide assembly 4 is in a horizontal state, the vertical flame spraying assembly 7 sprays flame vertically upward to the bottom surface of the test piece, and the transverse and longitudinal stretching component 5 stretches the sample piece horizontally;

[0068] In the third state, the movable material guide assembly 4 is in a vertical state, and the vertical flame spraying assembly 7 sprays flame vertically upward to the end of the test piece;

[0069] In the fourth state, the movable material guide assembly 4 is in a vertical state, the transverse and longitudinal stretching component 5 longitudinally pushes the test piece outward to bulge, and the transverse flame spraying assembly 6 horizontally sprays flame to the bulging part of the test piece;

[0070] In the fourth state, the movable material guide assembly 4 is in a vertical state, the closed combustion assembly 8 is closed outside the combustion area 412 of the material guide seat 41, and the vertical flame spraying assembly 7 and the horizontal flame spraying assembly 6 simultaneously spray flames to the test piece to make the test piece burn to analyze the combustion flue gas composition.

[0071] In the above scheme:

[0072] 1. The material receiving component can automatically receive the rubber sample and output the rubber sample to the movable material guiding component for subsequent combustion test; at the same time, the material receiving component can store longer samples for subsequent continuous multiple combustion tests;

[0073] 2. The design of the movable material guide component can achieve the following effects:

[0074] 2.1. It can be in a horizontal state, and the horizontal flame spraying assembly and the vertical flame spraying assembly can move synchronously to facilitate the horizontal flame spraying test at the end of the sample and the vertical flame spraying test at the bottom of the sample;

[0075] 2.2. After a combustion performance test is completed, the cutting component can be used to cut off the tested test piece, and then the material receiving assembly and the second conveying roller will add new samples to the combustion area to automatically update the test piece to meet the needs of continuous automatic testing, without the need to manually place samples one by one for testing;

[0076] 2.3. The material guide seat and the material receiving assembly are rotatably connected. When the test piece is cut, the material guide seat can be adjusted to a vertical state, and the material guide seat will face the waste box for material receiving. The vertical material guide seat also facilitates the cut test piece to fall under its own weight.

[0077] 2.4. When it is necessary to conduct a vertical flame spraying test on the end of the sample, the material guide seat is first rotated downward to a vertical state, and then the material receiving assembly and the material guide seat are translated to the top of the vertical flame spraying assembly, so that the automatic vertical flame spraying test on the end of the sample can be realized;

[0078] 3. The setting of the closed combustion component can close the combustion area. In this way, the horizontal flame spray component and the vertical flame spray component can be used for dual-point synchronous ignition, so that the test piece can burn quickly and produce enough smoke. The smoke is extracted in the closed area, and the smoke test component can analyze the smoke to determine whether the combustion smoke of the sample meets the standard.

[0079] In this embodiment, the sample production assembly 2 includes a placement table 21 , a transverse slide rail 22 is installed on the top of the placement table 21 , and a slitting saw 23 is slidably installed on the outer wall of the transverse slide rail 22 .

[0080] In the above scheme: the flexible porous polymer material such as rubber is directly placed on the placement table, and then the flexible porous polymer is pushed against the end, and the slitting saw moves along the transverse slide rail, and the slitting saw can cut out samples of suitable sizes.

[0081] In this embodiment, the material receiving assembly 3 includes a fixed seat 31, a material receiving arc seat 32, and a first conveying roller 33. The fixed seat 31 is arranged at one end inside the first combustion detection chamber 11. The side section of the fixed seat 31 is H-shaped. The material receiving arc seat 32 is installed at one end inside the fixed seat 31. The first conveying roller 33 is installed at the top inside the fixed seat 31. The first conveying roller 33 is used to convey the sample.

[0082] In the above scheme: the sample is inserted from the top opening, and then the sample enters the material receiving arc seat and the first conveying roller, and the first conveying roller can convey the sample to the material guiding seat.

[0083] In this embodiment, the side section of the material guide seat 41 is H-shaped, and connecting plates 42 are provided on both side surfaces of one end of the material guide seat 41. The outer end of the connecting plate 42 is rotatably connected to the fixed seat 31 and a flip motor 421 is installed at the rotating connection; the inlet area 411 of the material guide seat 41 is installed with a cleaning fan 43, and the cleaning fan 43 is used to clean the dust on the upper and lower surfaces of the sample; the cleaning fan 43, the second conveying roller 44 and the cutting component 45 are arranged in sequence along the conveying direction.

[0084] In the above scheme: when the material guide seat rotates, the flip motor drives the connecting plate to rotate, which can drive the material guide seat to rotate downward; the sample input into the introduction area is first processed by the cleaning fan, and the cleaning fan can use negative pressure to extract dust and impurities on the upper and lower surfaces of the sample to ensure the accuracy of subsequent combustion tests.

[0085] In this embodiment, the cutting component 45 includes a main board body 452, one end of the main board body 452 is provided with a cutter 454, and the other end is provided with a pressure strip 455, the main board body 452 is rotatably installed in the constraint frame 451 and a switching motor 453 is installed at the rotating connection, and the two ends of the constraint frame 451 are connected to the driving rod 456, and the driving rod is arranged on the surface of the material guide seat 41.

[0086] In the above scheme: when performing the slitting operation, the cutter faces downward, the driving rod drives the constraint frame to move downward, and the main board and the cutter follow the downward movement to cut off the sample; when performing the stretching operation, the motor is switched to drive the main board to rotate, so that the pressure strip faces downward, and then the driving rod drives the pressure strip to press the sample down to ensure that the test piece can be stretched.

[0087] In this embodiment, a U-shaped notch is provided inside the combustion zone 412, and a guide wheel 47 is symmetrically provided at the output end of the combustion zone 412; the transverse and longitudinal stretching component 5 comprises an outer frame 51, an inner frame 52, and a top seat 53; the outer frame 51 is axially slidably arranged on the bottom surface of the material guide seat 41, the inner frame 52 is axially slidably installed inside the outer frame 51, and the top seat 53 is vertically slidably installed inside the inner frame 52; the top surface of the top seat 53 is an arc surface structure, and a clamping groove 531 is provided on the inner side surface of the top seat 53, and a pressing block 55 is installed on the top and bottom of the clamping groove 531;

[0088] In the second state, the cutting member 45 presses down the inner end of the positioning test piece, the outer end of the test piece extends into the clamping groove 531, and the inner frame 52 moves outward and stretches horizontally to stretch the test piece horizontally;

[0089] In the fourth state, the top seat 53 is located in the middle of the test piece, and the top seat 53 extends outward to protrude from the test piece.

[0090] In the above scheme:

[0091] 1. The U-shaped notch is set to facilitate the vertical flame spraying component to conduct flame spraying test at the bottom of the sample;

[0092] 2. The outer frame can slide axially along the bottom of the material guide seat so that the top seat can operate at each station;

[0093] 3. The outer frame is equipped with a screw rod for driving the inner frame to translate. A lifting gear 521 is installed inside the inner frame. A back tooth groove 532 is provided on the back of the top seat. The lifting gear groove is meshed and embedded in the back tooth groove.

[0094] 4. By pushing the test piece outward from the top seat, the test piece can be made convex, so that the arc surface combustion test effect of the sample can be completed;

[0095] 5. During stretching, the outer frame moves outward so that the top seat is placed on the outer end of the material guide seat, and then the top seat is lifted up, and the sample is transported to the clamping groove. The upper and lower groups of pressing blocks move synchronously to press the pressing blocks down to position the ends of the sample, and then the inner frame moves outward along the outer frame, and the pressure strip presses the middle part of the sample, so that the lateral stretching can be tested, and the plane test effect under the lateral deformation state can be tested.

[0096] In this embodiment, the horizontal flame-throwing assembly 6 includes a horizontal flame-throwing head 61, a first slide plate 62 and a first movable seat 63. The first slide plate 62 is vertically slidably arranged on the inner wall of the main chassis 1, and the first movable seat 63 is horizontally slidably installed on the bottom surface of the first slide plate 62. A first horizontal movement screw 64 is installed inside the first movable seat 63. The external thread of the first horizontal movement screw 64 is equipped with the horizontal flame-throwing head 61, and the horizontal flame-throwing head 61 is slidably installed in the first movable seat 63.

[0097] In the above scheme: the first slide can slide vertically along the inner wall of the main box, the first movable seat can translate along the first slide, which can change the horizontal flame head to be close to and away from the combustion test position, and the first horizontal movement screw can drive the first movable seat to translate back and forth, so that the horizontal flame head evenly contacts various positions of the sample.

[0098] In this embodiment, the vertical flame spraying assembly 7 includes a vertical flame spraying head 71, a second slide plate 72 and a second movable seat 73. The second slide plate 72 is vertically slidably arranged on the inner wall of the main chassis 1. The second movable seat 73 is horizontally slidably installed on the surface of the second slide plate 72. A second transverse screw 74 is installed inside the second movable seat 73. The external thread of the second transverse screw 74 is sleeved with the vertical flame spraying head 71. The vertical flame spraying head 71 is slidably installed in the second movable seat 73.

[0099] In the above scheme: the second slide can slide vertically along the inner wall of the main box, the second movable seat can translate along the second slide, which can change the vertical flame head to be close to and away from the combustion test position, and the second transverse screw can drive the second movable seat to translate back and forth, so that the vertical flame head evenly contacts various positions of the sample.

[0100] In this embodiment, the closed combustion assembly 8 includes a closed cover 82 and a support plate 81. The support plate 81 is fixed to the bottom outer wall of the vertical flame head 71. The closed cover 82 is symmetrically hinged on both sides of the support plate 81. The bottom of the closed cover 82 is provided with an avoidance hole 821 adapted to the vertical flame head 71. The side of the closed cover 82 located on one side is provided with a through hole 822, and the through hole 822 is arranged opposite to the top seat 53. The smoke test assembly includes an exhaust valve, an exhaust fan and a smoke analyzer. The surface of the closed cover 82 is installed with an exhaust valve 83. The outside of the exhaust valve 83 is connected to the exhaust fan 84. The outlet end of the exhaust fan 84 is connected to the inside of the smoke analyzer 85.

[0101] In the fourth state, the two groups of closed covers 82 are closed outside the combustion zone 412 , the vertical flame spray head 71 vertically extends between the two groups of closed covers 82 , and the horizontal flame spray head 61 passes through the through hole 822 .

[0102] In the above scheme: when it is necessary to detect the flue gas, the two sets of closed covers rotate upward synchronously, and the closed covers are symmetrically closed at the ends of the material guide base to achieve closed testing and prevent the flue gas from overflowing. When the horizontal flame head and the vertical flame head work synchronously to quickly ignite the test piece, the flue gas is quickly introduced into the flue gas analyzer through the exhaust fan, and the flue gas analyzer can detect the flue gas composition.

[0103] In this embodiment, an air intake valve 85 is installed on the surface of the closed cover 82, and the outside of the air intake valve 85 is connected to a carbon dioxide storage tank 86; when the sealing detection is completed, the carbon dioxide storage tank 86 quickly discharges low-temperature carbon dioxide into the closed cover 82 to extinguish the fire.

[0104] In the above scheme: After the closed test is completed, in order to eliminate safety hazards, the cooling carbon dioxide can be quickly discharged through the carbon dioxide storage tank to achieve rapid fire extinguishing.

[0105] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0106] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flame retardant performance testing device for flexible porous polymer materials, characterized in that: include: A main box, wherein the top of the interior is a first combustion detection chamber, the bottom of the interior is a second combustion detection chamber, a waste box is provided at one end of the interior of the second combustion detection chamber, and an inspection door is provided on the outer wall of the main box, and the inspection door is arranged opposite to the waste box; A sample making component is arranged on the top surface of the main box, and is used for cutting and making samples of the flexible porous polymer; A material receiving assembly is horizontally slidably disposed at one end of the first combustion detection chamber, and is used to receive and output the sample; A movable material guide assembly comprises a material guide seat, a cutting component, and a transverse and longitudinal stretching component. One end of the material guide seat is rotatably connected to the material receiving assembly. One end of the interior of the material guide seat is an introduction zone, and the other end of the interior is a combustion zone. The top, bottom and outer end of the combustion zone are all open structures. The portion of the sample in the combustion zone is a test piece. A second conveying roller and a cutting component are installed inside the introduction zone; transverse and longitudinal stretching components are installed inside the combustion zone, and an integrated probe is installed at the combustion zone; the integrated probe is used to detect whether the test piece is burning. When the combustion test is completed, the movable material guide assembly needs to perform an update loading action. The specific update loading action is: the movable material guide assembly rotates downward, the cutting component cuts off the tested test piece and makes the tested test piece fall onto the waste plate, and the second conveying roller inputs a new sample piece into the combustion area; A horizontal flame spraying assembly is horizontally slidably mounted at the other end of the first combustion detection chamber; A vertical flame spraying assembly is vertically slidably mounted inside the second combustion detection chamber; A closed combustion assembly is arranged on the outer wall of the vertical flame spraying assembly. The closed combustion assembly is an openable and closable structure. The outer wall of the closed combustion assembly is connected to the smoke test assembly. The flame retardant performance test device includes the following states: In the first state, the movable material guide assembly is in a horizontal state, and the horizontal flame spraying assembly sprays flames horizontally to the end of the test piece; In the second state, the movable material guide assembly is in a horizontal state, the vertical flame spraying assembly sprays flame vertically upward to the bottom surface of the test piece, and the transverse and longitudinal stretching component stretches the sample piece horizontally; In the third state, the movable material guide assembly is in a vertical state, and the vertical flame spraying assembly sprays flame vertically upward to the end of the test piece; In the fourth state, the movable material guide assembly is in a vertical state, the transverse and longitudinal stretching components push the test piece outwardly in the longitudinal direction and bulge, and the transverse flame spraying assembly sprays flame horizontally to the bulging part of the test piece; In the fourth state, the movable material guide assembly is in a vertical state, the closed combustion assembly is closed outside the combustion area of ​​the material guide seat, and the vertical flame spraying assembly and the horizontal flame spraying assembly synchronously spray flames to the test piece to make the test piece burn to analyze the combustion flue gas composition.

2. A flame retardant performance testing device for flexible porous polymer materials according to claim 1, characterized in that: The sample production component comprises a placing table, a transverse sliding rail is installed on the top of the placing table, and a slitting saw is slidably installed on the outer wall of the transverse sliding rail.

3. A flame retardant performance testing device for flexible porous polymer materials according to claim 2, characterized in that: The material receiving assembly includes a fixed seat, a material receiving arc seat, and a first conveying roller. The fixed seat is arranged at one end inside the first combustion detection chamber. The side cross-section of the fixed seat is H-shaped. The material receiving arc seat is installed at one end inside the fixed seat. The first conveying roller is installed at the top inside the fixed seat. The first conveying roller is used to convey the sample.

4. A flame retardant performance testing device for flexible porous polymer materials according to claim 3, characterized in that: The side cross-section of the material guide seat is H-shaped, and connecting plates are provided on both sides of one end of the material guide seat. The outer end of the connecting plate is rotatably connected to the fixed seat and a flip motor is installed at the rotating connection; a cleaning fan is installed in the inlet area of ​​the material guide seat, and the cleaning fan is used to clean dust on the upper and lower surfaces of the sample; the cleaning fan, the second conveying roller and the cutting component are arranged in sequence along the conveying direction.

5. A flame retardant performance testing device for flexible porous polymer materials according to claim 4, characterized in that: The cutting component includes a main board body, one end of which is provided with a cutter and the other end is provided with a pressure strip. The main board body is rotatably installed in a constraint frame and a switching motor is installed at the rotation connection. The two ends of the constraint frame are connected to a driving rod, and the driving rod is arranged on the surface of the material guide seat.

6. A flame retardant performance testing device for flexible porous polymer materials according to claim 5, characterized in that: A U-shaped notch is provided inside the combustion zone, and guide wheels are symmetrically provided at the output end of the combustion zone; the transverse and longitudinal stretching components include an outer frame, an inner frame, and a top seat, the outer frame is axially slidably arranged on the bottom surface of the material guide seat, the inner frame is axially slidably installed inside the outer frame, and the top seat is vertically slidably installed inside the inner frame, the top surface of the top seat is an arc surface structure, a clamping groove is provided on the inner side surface of the top seat, and pressure blocks are installed on the top and bottom of the clamping groove; In the second state, the cutting component presses down the inner end of the positioning test piece, the outer end of the test piece extends into the clamping groove, and the inner frame moves outward and stretches horizontally to stretch the test piece horizontally; In the fourth state, the top seat is located in the middle of the test piece, and the top seat extends outward to protrude from the test piece.

7. A flame retardant performance testing device for flexible porous polymer materials according to claim 6, characterized in that: The horizontal flame-spraying assembly includes a horizontal flame-spraying head, a first slide plate and a first movable seat. The first slide plate is vertically slidably arranged on the inner wall of the main box. The bottom surface of the first slide plate is horizontally slidably installed with the first movable seat. The first horizontal movement screw is installed inside the first movable seat. The external thread of the first horizontal movement screw is sleeved with the horizontal flame-spraying head. The horizontal flame-spraying head is slidably installed in the first movable seat.

8. The flame retardant performance testing device for flexible porous polymer materials according to claim 7, characterized in that: The vertical flame-spraying assembly includes a vertical flame-spraying head, a second slide plate and a second movable seat. The second slide plate is vertically slidably arranged on the inner wall of the main box. The second movable seat is horizontally slidably installed on the surface of the second slide plate. A second transverse screw is installed inside the second movable seat. The external thread of the second transverse screw is sleeved with the vertical flame-spraying head. The vertical flame-spraying head is slidably installed in the second movable seat.

9. A flame retardant performance testing device for flexible porous polymer materials according to claim 8, characterized in that: The closed combustion assembly includes a closed cover and a support plate, the support plate is fixed to the bottom outer wall of the vertical flame head, the closed cover is symmetrically hinged on both sides of the support plate, the bottom of the closed cover is provided with an avoidance hole adapted to the vertical flame head, and the side of the closed cover located on one side is provided with a through hole, and the through hole is arranged opposite to the top seat; the smoke test assembly includes an exhaust valve, an exhaust fan and a smoke analyzer, the surface of the closed cover is installed with an exhaust valve, the outside of the exhaust valve is connected to the exhaust fan, and the outlet end of the exhaust fan is connected to the smoke analyzer; In the fourth state, the two groups of closed covers are closed outside the combustion zone, the vertical flame spray head vertically extends between the two groups of closed covers, and the horizontal flame spray head passes through the through hole.

10. A flame retardant performance testing device for flexible porous polymer materials according to claim 9, characterized in that: An air intake valve is installed on the surface of the closed cover, and the outside of the air intake valve is connected to a carbon dioxide storage tank; when the closed detection is completed, the carbon dioxide storage tank quickly discharges low-temperature carbon dioxide into the closed cover to extinguish the fire.

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