A flame retardant performance testing device for fire retardant clothing materials

Abstract

The present invention provides a flame retardant performance detection device for fireproof clothing materials, which belongs to the technical field of flame retardant material detection, and comprises a box body, a clamping assembly for clamping samples; a feeding mechanism, a rotating mechanism and a partition are arranged in the box body; the partition divides the box body into a detection area and a feeding area; the feeding mechanism comprises a feeding platform, a feeding tray and a moving assembly; a push rod is elastically connected to the feeding platform, a feeding port is provided on the part of the partition close to the feeding platform, and a card slot for clamping the clamping assembly is provided on the feeding tray; the moving assembly comprises a moving plate, a push plate and a linear driver; a push port is provided on the push plate; the rotating mechanism comprises a rotating disk, a limit slot and a driving motor. The feeding, burning, cooling and unloading of the present invention are carried out in a continuous cycle, and the feeding, burning, cooling and unloading of one sample can be completed while the feeding of the next sample is completed, thereby improving the detection efficiency, and a short cooling can be performed after burning, thereby increasing the safety and preventing the operator from being scalded in the process of taking out the sample.

Description

Technical Field

[0001] The invention relates to the technical field of flame retardant material detection, and in particular to a flame retardant performance detection device for fireproof clothing materials. Background Art

[0002] The flame retardant performance test of fire-resistant clothing materials is usually carried out with the help of a flame retardant performance test device using a vertical combustion test method. During the test, it is necessary to cut a sample of a certain size from the protective clothing material and clamp it on a plywood. Then the sample is clamped and positioned, and placed vertically to the combustion end. The combustion source is ignited below the sample to be tested, and the afterburning time and smoldering time of the sample to be tested are measured. A heavy hammer is hung to measure indicators such as the tear length of the sample to be tested, and the average value is recorded after multiple vertical combustion tests. The existing technology requires multiple tests when testing samples. After each test, the tested sample needs to be taken out before the next sample to be tested can be clamped. This takes a long time and affects the test efficiency.

[0003] The patent application document with publication number CN117030923A discloses a flame retardant performance testing device for fireproof clothing materials. A clamping mechanism is provided in the box body, which realizes the functions of internal fireproof clothing testing and external fireproof clothing synchronous fixing. Through the arrangement of the second electric push rod, the first connecting plate, the fourth limit rod, the support frame, the slider and the clamp, when testing the flame retardant performance of one fireproof clothing, another fireproof clothing can be fixed, thus shortening the operation time of the fireproof clothing testing. However, the clamping mechanism can only meet the requirements of clamping and replacing two fireproof clothing. When multiple samples need to be tested, the two protective clothing after testing need to be removed and re-clamped, which affects the testing efficiency.

[0004] Therefore, it is necessary to develop a flame retardant performance testing device for fire retardant clothing materials to solve the technical problem in the prior art that when testing multiple samples, the tested sample must be taken out before the next sample to be tested can be clamped. Summary of the invention

[0005] In view of this, the present invention provides a flame retardant performance testing device for fire retardant clothing materials, in which loading, combustion, cooling and unloading are performed in a continuous cycle, and one sample can be burned while the next sample is loaded, thereby solving the technical problem in the prior art that the next sample to be tested can only be clamped after the tested sample is taken out.

[0006] In order to solve the above technical problems, the present invention provides a flame retardant performance testing device for fireproof clothing materials, comprising a box body and a clamping assembly for clamping a sample; a feeding mechanism, a rotating mechanism and a partition are arranged in the box body; the partition divides the box body into a testing area and a feeding area;

[0007] The feeding mechanism comprises a feeding platform fixedly mounted on the partition and located in the feeding area for receiving the clamping assembly, a feeding tray fixedly mounted on the partition and located in the detection area for temporarily storing the clamping assembly, and a moving assembly for pushing the clamping assembly to move; a push rod is elastically connected to the feeding platform, and a feeding port is provided on the partition near the feeding platform. The push rod can push the clamping plate assembly on the feeding platform through the feeding port to the feeding tray, and a card slot for clamping the clamping assembly is provided on the feeding tray;

[0008] The moving assembly includes a moving plate slidably connected to the loading tray, a push plate fixedly connected to one end of the moving plate at the loading port, and a linear driver driving the moving plate to move; a pushing port is provided on the push plate;

[0009] The rotating mechanism includes a rotating disk arranged in the detection area on one side of the loading disk, a plurality of limit grooves provided on the rotating disk for clamping the clamping assembly, and a driving motor for driving the rotating disk to rotate; the rotating disk drives the clamping assembly to pass through the loading station, the burning station, the cooling station and the unloading station arranged in the detection area in sequence.

[0010] By adopting the above technical solution, when testing the sample, the clamping assembly holding the sample is placed on the loading table, and the push rod pushes the clamping assembly through the loading port and the pushing port under the elastic action, and is clamped into the card slot, and the linear drive drives the moving plate to move, and the moving plate drives the push plate to move to the limit slot on the rotating disk, and the linear drive drives the moving plate to retreat to the initial position, and the driving motor drives the rotating disk to rotate, so that the clamping assembly rotates from the loading station to the combustion station, and the sample undergoes a vertical combustion test at the combustion station. After the combustion test, the rotating disk drives the clamping assembly to rotate to the cooling station for cooling, and then reaches the unloading station to take out the clamping assembly. The rotating disk of the present invention is provided with a plurality of limit grooves, which can accommodate a plurality of clamping components. When the sample to be tested is loaded from the loading station, the sample that has been burned and cooled at the unloading station can be taken out; after the loading of the sample to be tested is completed, the rotating disk rotates the sample to be tested to the combustion station for combustion. At the same time, the sample on the original unloading station is taken out, the position is vacated, and rotated to the loading station, and the next sample can be loaded; after combustion, it is rotated to the cooling station for cooling, and then the next sample is burned. The loading, combustion, cooling, and unloading of the present invention are carried out in a continuous cycle, and one sample can be burned while the loading of the next sample is completed, thereby improving the detection efficiency, and a short cooling can be performed after combustion to increase safety and prevent the operator from being scalded in the process of taking out the sample.

[0011] Furthermore, the clamping assembly includes a clamping frame 1 and a clamping frame 2, a spring pin is connected between the clamping frame 1 and the clamping frame 2, the sample is placed between the clamping frame 1 and the clamping frame 2, one end of the clamping frame 1 and the clamping frame 2 are both provided with openings so that the end of the sample can contact the flame, and the end of the clamping frame 2 away from the opening is provided with a limiting member that can be clamped in the limiting groove and the clamping slot and can slide along the limiting groove and the clamping slot.

[0012] By adopting the above technical solution, the clamping frame one and the clamping frame two clamp the sample and both have openings to facilitate vertical contact between the sample and the flame. When the push rod pushes the clamping assembly through the pushing port, the limit piece is inserted into the slot. When the moving plate drives the sample to move to the rotating disk, the limit piece is inserted into the limit slot, thereby fixing the clamping assembly on the rotating disk, making it convenient for the rotating disk to drive the clamping assembly to rotate.

[0013] Furthermore, a spring pin 1 is installed in the slot, and a limiting hole is provided on the limiting member to allow the spring pin 1 to extend into.

[0014] By adopting the above technical solution, when the push rod pushes the clamping assembly through the pushing port, the limit piece is inserted into the slot, and the spring pin extends into the limit hole to temporarily limit the end of the clamping assembly, so that the clamping assembly is stably placed on the loading plate.

[0015] Furthermore, a spring pin 2 capable of extending into the limiting hole is installed in the limiting groove.

[0016] By adopting the above technical solution, when the linear driver pushes the clamping assembly to move into the limiting groove, the second spring pin extends into the limiting hole to limit the clamping assembly.

[0017] Furthermore, a movable clamp group is provided at the push port, and the movable clamp group includes an upper movable clamp and a lower movable clamp respectively elastically connected to the push port, so that the push rod pushes the clamping assembly through the push port, and the upper movable clamp and the lower movable clamp are closed.

[0018] By adopting the above technical solution, when the push rod pushes the clamping assembly to pass through the pushing port, the clamping assembly pushes the upper movable clamp to move upward and the lower movable clamp to move downward, and the movable clamp group opens. When the push rod pushes the clamping assembly to pass through the pushing port, the upper movable clamp and the lower movable clamp close, making it convenient for the movable plate to drive the push plate and the clamping assembly to move.

[0019] Furthermore, the clamping frame 2 includes plate body 1 and plate body 2, and the clamping frame 1 includes plate body 3 and plate body 4, and an elastic pressure rod 1 is connected between plate body 3 and plate body 4; there are sliding connections between plate body 1 and plate body 2, and between plate body 3 and plate body 4, plate body 2 and limit piece are of integrated design, and a spring pin is connected between plate body 1 and plate body 3, and between plate body 2 and plate body 4.

[0020] By adopting the above technical solution, relative sliding can occur between plate body 1 and plate body 2, and between plate body 3 and plate body 4, so as to realize flattening of the sample.

[0021] Furthermore, a flattening mechanism is also provided in the box body, and the flattening mechanism includes a hydraulic oil assembly and a tightening assembly. The hydraulic oil assembly includes a hydraulic oil chamber arranged in plate body 2, a pressure plate 1 arranged on plate body 1 and capable of extending into the hydraulic oil chamber, a pressure plate 2 installed on the limit member in the hydraulic oil chamber, a blind hole is provided on the pressure plate 2, and the tightening assembly tightens the blind hole. The oil pressure in the hydraulic oil chamber pushes the pressure plate 1 to move, so that the plate body 1 moves to flatten the sample.

[0022] By adopting the above technical solution, the flattening mechanism can flatten the sample clamped by the clamping assembly, reducing the impact of wrinkles on the test data. Specifically, the clamping assembly presses the blind hole to move the pressing plate 2, thereby increasing the oil pressure in the hydraulic oil chamber. The oil pressure pushes the pressing plate 1 to move toward the end away from the hydraulic oil chamber, thereby driving the plate body 1 to move, increasing the distance between the plate body 1 and the plate body 2. Since a spring pin is connected between the plate body 1 and the plate body 3, the plate body 1 drives the plate body 3 to move, increasing the distance between the plate body 3 and the plate body 4, and flattening the wrinkles that may appear on the sample.

[0023] Furthermore, the clamping assembly includes an arc groove opened on the side of the loading disk close to the rotating disk, an elastic pressure rod 2 installed in the limiting groove and capable of extending into the blind hole, and a connecting rod fixedly connected to the end of the elastic pressure rod 2 away from the blind hole and capable of extending into the arc groove; the arc groove includes an arc segment 1 arranged between the loading station and the combustion station, and an arc segment 2 arranged between the combustion station and between the combustion station and the unloading station, the radius of the arc segment 1 is smaller than the radius of the arc segment 2, so that the connecting rod moves along the arc groove to the arc segment 2, and the elastic pressure rod 2 clamps the blind hole.

[0024] By adopting the above technical solution, when the rotating disk drives the clamping assembly to move from the loading station to the burning station, the elastic pressure rod 2 drives the connecting rod to move along the arc segment 1 of the arc groove, and the elastic pressure rod 2 and the blind hole are in a relaxed state. When the rotating disk drives the clamping assembly to move to the burning station, the elastic pressure rod 2 drives the connecting rod to move along the arc segment 2 of the arc groove. Since the radius of the arc segment 2 is greater than the radius of the arc segment 1, the radius of the trajectory of the movement of the connecting rod 2 is increased, so that the elastic pressure rod 2 can press against the blind hole, and the pressure plate moves toward the side close to the hydraulic oil chamber. The oil pressure increases, pushing the elastic pressure rod 1 to move toward the end away from the hydraulic oil chamber, thereby driving the plate body 1 to move, increasing the distance between the plate body 1 and the plate body 2, and flattening the sample.

[0025] Furthermore, the clamping assembly also includes a weight limiting unit arranged on one end of the clamping frame one and the clamping frame two away from the limiting member, the weight limiting unit includes a weight slot opened on the clamping frame one and the clamping frame two, a rotating gear arranged on one side of the weight slot, a baffle rod fixedly mounted on the rotating gear, and a rack meshing with the rotating gear, pushing the rack to move and drive the rotating gear to rotate, so that the baffle rod can limit the position of the weight hanging in the weight slot.

[0026] By adopting the above technical solution, after burning, the clamping assembly is taken out, the rack is moved, the rack drives the rotating gear to rotate, the rotating gear drives the blocking rod to rotate to a position blocking the weight slot, the area between the bottom of the weight slot and the blocking rod is the position for hanging the weight, so that the position of the hanging weight is fixed, thereby improving the accuracy of the tear length test. After the weight is hung at this position, the rack is moved in the reverse direction, so that the rotating gear drives the blocking rod to rotate in the reverse direction, the blocking rod releases the blocking of the weight slot, and the clamp frame 1 and the clamp frame 2 can be taken out to perform the tear length test.

[0027] The beneficial effects of the above technical solution of the present invention are as follows:

[0028] 1. The loading, combustion, cooling and unloading of the present invention are carried out in a continuous cycle, so that one sample can be burned while the loading of the next sample is completed, thereby improving the detection efficiency. Moreover, a short cooling can be carried out after combustion to increase safety and prevent operators from being scalded in the process of taking out samples.

[0029] 2. The flattening mechanism of the present invention can flatten the sample clamped by the clamping assembly, reducing the impact of sample wrinkles on test data.

[0030] 3. The weight limiting unit of the present invention limits the position of the hanging weight, thereby improving the accuracy of the tear length test. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional diagram of the interior of the flame retardant performance testing device for fire-resistant clothing materials of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of the flame retardant performance testing device for fire retardant clothing materials of the present invention;

[0033] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0034] Figure 4 It is a structural schematic diagram of the rotating disk and the loading disk of the present invention;

[0035] Figure 5 It is a schematic structural diagram of the detection area of ​​the present invention;

[0036] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0037] Figure 7 It is a schematic structural diagram of the clamping assembly of the present invention;

[0038] Figure 8 A partial cross-sectional view of the hydraulic oil chamber of the present invention;

[0039] Fig. 9 is a cross-sectional view of a hydraulic oil assembly of the present invention;

[0040] Fig.10 is a cross-sectional view of a weight limiting unit of the present invention;

[0041] Fig.11 It is a schematic structural diagram of the arc groove of the present invention.

[0042] In the figure: 1, box body; 12, partition; 121, loading port; 13, detection area; 131, loading station; 132, burning station; 133, cooling station; 134, unloading station; 135, igniter; 14, loading area; 2, clamping assembly; 21, clamping plate frame 1; 211, plate body 3; 212, plate body 4; 22, clamping plate frame 2; 221, plate body 1; 222, plate body 2 ; 223, limiter; 223a, limiter hole; 23, spring pin; 24, weight limiter unit; 241, weight slot; 242, rotating gear; 243, rotating shaft; 244, stopper; 245, rack; 246, wrench; 3, feeding mechanism; 31, feeding platform; 311, push rod; 312, spring; 313, slide; 32, feeding tray; 321, spring pin 1; 322 , slot; 33, moving assembly; 331, moving plate; 332, pushing plate; 332a, pushing port; 333, moving clip group; 333a, upper moving clip; 333b, lower moving clip; 334, linear drive; 4, rotating mechanism; 41, rotating disk; 42, limiting groove; 43, spring pin 2; 44, driving motor; 5, flattening mechanism; 51, hydraulic oil assembly; 511, hydraulic oil chamber; 511a, hydraulic oil chamber 1; 511b, hydraulic oil chamber 2; 511c, conduit; 512, pressure plate 1; 513, pressure plate 2; 514, blind hole; 515, elastic pressure rod 1; 52, tightening assembly; 521, arc groove; 521a, arc segment 1; 521b, arc segment 2; 522, elastic pressure rod 2; 523, connecting rod; 524, ball head; 6, sample. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 11, the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0044] Example

[0045] This embodiment provides a flame retardant performance detection device for fire retardant clothing materials, such as Figure 1 and Figure 2 As shown, it includes a box body 1, a clamping assembly 2, a feeding mechanism 3, a rotating mechanism 4 and a flattening mechanism 5.

[0046] like Figure 2 As shown, the clamping assembly 2 clamps the sample 6, and the loading mechanism 3 conveys the clamping assembly 2 holding the sample 6 to the rotating mechanism 4. The rotating mechanism 4 drives the clamping assembly 2 to rotate to achieve combustion and material collection after combustion. The flattening mechanism 5 flattens the sample 6 clamped by the clamping assembly 2 to reduce wrinkles on the sample 6.

[0047] like Figure 2 As shown, a partition 12 is provided in the box 1, dividing the box 1 into a detection area 13 and a loading area 14. Figure 2 and Figure 5 As shown, a loading station 131, a burning station 132, a cooling station 133 and a unloading station 134 are provided in the detection area 13. The loading station 131, the burning station 132, the cooling station 133 and the unloading station 134 are respectively located at the right, bottom, left and top of the detection area 13. The loading station 131 corresponds to the position of the loading area 14, and is respectively located on both sides of the partition 12 to load the sample 6. An igniter 135 is provided on the burning station 132 for burning the sample 6. The cooling station 133 can briefly cool the burned sample 6 to increase safety and prevent the operator from being scalded in the process of taking out the sample 6. The unloading station 134 is used to take out the burned and cooled sample 6.

[0048] like Figure 7 As shown, the clamping assembly 2 includes a clamping plate frame 1 21, a clamping plate frame 22 and a weight limiting unit 24. The clamping plate frame 1 21 and the clamping plate frame 2 22 are used to clamp the sample 6. Before the sample 6 is loaded, it is first installed on the clamping assembly 2, so that the loading mechanism 3 and the rotating mechanism 4 can drive the clamping assembly 2 holding the sample 6 to move. The weight limiting unit 24 is used to limit the position of the hanging weight, so that the position of the hanging weight is fixed, which is conducive to improving the accuracy of the tear length test.

[0049] like Figure 2 and Figure 7As shown, spring pins 23 are vertically connected to both sides of the clamping frame 1 21 and the clamping frame 2 22. The sample 6 is placed between the clamping frame 1 21 and the clamping frame 2 22. The clamping frame 1 21 and the clamping frame 2 22 clamp the sample 6. One end of the clamping frame 1 21 and the clamping frame 2 22 is provided with an opening so that the end of the sample 6 can be in vertical contact with the flame. A stopper 223 is provided on the end of the clamping frame 2 22 away from the opening, which is used to be mounted on the rotating mechanism 4 to facilitate the rotating mechanism 4 to drive the clamping assembly 2 to rotate. The clamping plate frame 22 includes a plate body 1 221 and a plate body 222, and the clamping plate frame 1 21 includes a plate body 3 211 and a plate body 4 212. The plate body 1 221 and the plate body 2 222, and the plate body 3 211 and the plate body 4 212 are all slidably connected, and the plate body 1 221 and the plate body 2 222, and the plate body 3 211 and the plate body 4 212 can slide relative to each other to cooperate with the flattening mechanism 5 to flatten the sample 6. The plate body 222 and the limiter 223 are of an integrated design, and the spring pin 23 is connected between the plate body 1 221 and the plate body 3 211, and between the plate body 222 and the plate body 4 212.

[0050] like Fig.10 As shown, the weight limiting unit 24 includes a weight slot 241 , a rotating gear 242 , a blocking rod 244 and a rack 245 .

[0051] like Figure 7 and Fig.10 As shown, a weight slot 241 is provided at one end of the clamping plate frame 1 21 and the clamping plate frame 2 2 away from the limiter 223. The weight slot 241 is used to hang the weight. A rotating shaft 243 is rotatably connected to one side of the weight slot 241. The axis of the rotating shaft 243 extends in the up-down direction. The rotating gear 242 is fixedly mounted on the rotating shaft 243. The blocking rod 244 is also fixedly mounted on the rotating shaft 243. The blocking rod 244 can block the weight slot 241. The portion between the bottom of the weight slot 241 away from the opening and the blocking rod 244 is the position for hanging the weight, thereby fixing the position of the hanging weight. The rack 245 is slidably connected to the clamping plate frame 1 21 and the clamping plate frame 2 2 and meshes with the rotating gear 242. A wrench 246 is fixedly connected to one end of the rack 245.

[0052] After burning, Figure 2 As shown, take out the clamping assembly 2, as shown in Figure 7 and Fig.10As shown, the wrench 246 is pulled to move the rack 245, the rack 245 drives the rotating gear 242 to rotate, and the rotating gear 242 drives the blocking rod 244 to rotate to a position that blocks the weight slot 241. The area between the bottom of the weight slot 241 and the blocking rod 244 is the position for hanging the weight, so that the position of the hanging weight is fixed, and the accuracy of the tear length test is improved. After the weight is hung at this position and passes through the sample 6, the wrench 246 is pulled in the opposite direction to make the rack 245 move in the opposite direction, and the rotating gear 242 drives the blocking rod 244 to rotate in the opposite direction. The blocking rod 244 releases the blocking of the weight slot 241, and the clamp frame 1 21 and the clamp frame 2 22 can be opened, and the sample 6 is taken out, and the end of the sample 6 away from the weight is slowly lifted by hand to make the weight hang in the air, and then the weight is put down and removed, and the tear length of the sample 6 is measured.

[0053] like Figure 2 As shown, the loading mechanism 3 includes a loading platform 31 , a loading tray 32 and a moving assembly 33 .

[0054] like Figure 2 As shown, the loading platform 31 is fixedly mounted on the partition 12 and located in the loading area 14 for receiving the clamping assembly 2, and the table surface of the loading platform 31 is perpendicular to the up-down direction. A slide groove 313 is provided at the rear end of the loading platform 31, and the slide groove 313 extends in the left-right direction. A push rod 311 is slidably connected in the slide groove 313, and the length direction of the push rod 311 is parallel to the front-back direction, so that the end of the push rod 311 is clamped in the slide groove 313. A spring 312 is connected between the right side of the push rod 311 and the loading platform 31, and the clamping assembly 2 is placed on the left end of the push rod 311, and the clamping assembly 2 can be pushed to move to the left under the action of the elastic force of the spring 312. The length of the slide groove 313 in the left-right direction is greater than the width of the clamping assembly 2 in the left-right direction. When the clamping assembly 2 is placed on the loading platform 31 at the position of the slide groove 313, the push rod 311 can push the clamping assembly 2 to move a distance of the width of the clamping assembly 2 under the action of elasticity.

[0055] like Figure 2 and Figure 3 As shown, a loading port 121 is opened on the partition 12 near the loading platform 31. The length of the loading port 121 in the front-to-back direction is greater than the length of the clamping assembly 2 in the front-to-back direction, and the width of the loading port 121 in the up-down direction is greater than the height of the clamping assembly 2 in the up-down direction, so that the push rod 311 can push the clamping assembly 2 through the loading port 121.

[0056] like Figure 2 and Figure 4As shown, the loading tray 32 is fixedly mounted on the partition 12 and located in the detection area 13, and is used to temporarily store the clamping assembly 2 pushed by the push rod 311 from the loading platform 31. The axis direction of the loading tray 32 extends in the left-right direction. The loading tray 32 is provided with a clamping groove 322 for clamping the clamping assembly 2, and the clamping groove 322 extends in the left-right direction. A spring pin 321 is installed on the clamping groove 322, and the center of the loading tray 32 is colinear with the axis of the spring pin 321. The limiting member 223 is provided with a limiting hole 223a (such as Fig. 9 The clamping assembly 2 moves to the limiting member 223 and is located in the slot 322 . The spring pin 1 321 extends into the limiting hole 223 a to limit the clamping assembly 2 .

[0057] like Figure 2 and Figure 3 As shown, the moving assembly 33 includes a moving plate 331 , a push plate 332 , a moving clip set 333 and a linear driver 334 .

[0058] like Figure 2 and Figure 3 As shown, the movable plate 331 is arc-shaped, slidably connected to the loading tray 32, and can move along the axial direction of the loading tray 32. The push plate 332 is fixedly installed at the lower right end of the movable plate 331, and a push opening 332a is provided on the push plate 332. The length of the push opening 332a in the front-to-back direction is greater than the length of the clamping assembly 2 in the front-to-back direction, so that the clamping assembly 2 passing through the loading opening 121 can enter the push opening 332a.

[0059] like Figure 2 and Figure 3 As shown, the movable clip group 333 includes an upper movable clip 333a and a lower movable clip 333b elastically connected to the upper and lower ends of the push opening 332a, respectively. The lower end of the upper movable clip 333a is inclined upward and provided with an upper inclined surface, and the upper end of the lower movable clip 333b is inclined downward and provided with a lower inclined surface, which is conducive to the push rod 311 pushing the clamping assembly 2 through the push opening 332a, the upper movable clip 333a moves up, and the lower movable clip 333b moves down, so that the clamping assembly 2 passes through. After the clamping assembly 2 passes through the push opening 332a, the upper movable clip 333a moves down, the lower movable clip 333b moves up, and the movable clip group 333 is closed, which is conducive to the movable plate 331 driving the push plate 332 to push the clamping assembly 2 to move.

[0060] like Figure 2 As shown, the linear actuator 334 is installed in the loading area 14, and the driving shaft of the linear actuator 334 passes through the partition 12 and is fixedly connected to the moving plate 331, thereby driving the moving plate 331 to move left and right. The linear actuator 334 in this embodiment is a cylinder or a hydraulic cylinder.

[0061] like Figure 2 and Figure 4As shown, the rotating mechanism 4 includes a rotating disk 41 , a limiting groove 42 and a driving motor 44 .

[0062] like Figure 2 and Figure 4 As shown, the rotating disk 41 is arranged in the detection area 13, located on the left side of the loading disk 32, and is rotatably connected to the box body 1. The axis of the rotating disk 41 is colinear with the axis of the loading disk 32, so that the moving plate 331 can slide from the loading disk 32 to the rotating disk 41.

[0063] like Figure 4 As shown, the limiting groove 42 is provided on the rotating disk 41, and the limiting groove 42 extends in the left-right direction. Figure 6 As shown, the limiting member 223 for clamping the clamping assembly 2, the limiting groove 42 is a dovetail groove, and the corresponding limiting member 223 is also a dovetail block. The limiting groove 42 is installed with a Fig. 9 The center of the rotating disk 41 is in line with the axis of the spring pin 2 43. When the linear driver 334 pushes the clamping assembly 2 to move into the limiting groove 42, the spring pin 2 43 extends into the limiting hole 223a to limit the clamping assembly 2.

[0064] like Figure 2 and Figure 5 As shown, the drive motor 44 is installed in the loading area 14, and the drive shaft of the drive motor 44 passes through the partition 12 and the loading disk 32 in sequence, and is fixedly connected to the central part of the rotating disk 41, driving the clamping assembly 2 to pass through the loading station 131, the combustion station 132, the cooling station 133 and the unloading station 134 arranged in the detection area 13 in sequence.

[0065] like Figure 2 As shown, the flattening mechanism 5 includes Fig. 9 The hydraulic oil assembly 51 shown and Figure 6 The tightening assembly 52 is shown.

[0066] like Figure 8 and Fig. 9 As shown, the hydraulic oil assembly 51 includes a hydraulic oil chamber 511 , a pressure plate 1 512 and a pressure plate 2 513 .

[0067] like Figure 8 and Fig. 9 As shown, the hydraulic oil chamber 511 includes a hydraulic oil chamber 1 511a disposed on the plate body 222, a hydraulic oil chamber 2 511b disposed on the limiter 223, and a conduit 511c connecting the hydraulic oil chamber 1 511a and the hydraulic oil chamber 2 511b.

[0068] like Figure 8 and Fig. 9As shown, the pressure plate 512 is fixedly mounted on the plate body 221 and can extend into the hydraulic oil chamber 511a and is slidably connected to the inner wall of the hydraulic oil chamber 511a.

[0069] like Figure 8 and Fig. 9 As shown, the second pressing plate 513 is installed on the second hydraulic oil chamber 511b and is slidably connected to the inner wall of the second hydraulic oil chamber 511b. A blind hole 514 is provided on the second pressing plate 513.

[0070] like Figure 7-Figure 9 As shown, an elastic pressure rod 1 515 is connected between the plate body 3 211 and the plate body 4 212 of the clamping plate frame 1 21. The pressing assembly 52 presses the blind hole 514, so that the pressing plate 2 513 moves into the hydraulic oil chamber 2 511b, thereby increasing the oil pressure in the hydraulic oil chamber 511, and the oil pressure pushes the pressing plate 1 512 and the plate body 1 221 to move toward the end away from the hydraulic oil chamber 1 511a, and the distance between the plate body 1 221 and the plate body 2 222 increases. Since the spring pin 23 is vertically connected between the plate body 1 221 and the plate body 3 211, the plate body 1 221 drives the plate body 3 211 to move, so that the distance between the plate body 3 211 and the plate body 4 212 increases, and the wrinkles that may appear in the sample 6 are flattened.

[0071] like Figure 6 As shown, the tightening assembly 52 includes an arc-shaped groove 521 , an elastic pressure rod 522 and a connecting rod 523 .

[0072] like Figure 5 and Fig.11 As shown, the arc groove 521 is opened on one side of the loading disk 32 close to the rotating disk 41, and the arc groove 521 includes an arc segment 1 521a arranged between the loading station 131 and the combustion station 132, and an arc segment 2 521b arranged between the combustion station 132 and between the combustion station 132 and the unloading station 134, and the radius of the arc segment 1 521a is smaller than the radius of the arc segment 2 521b.

[0073] like Figure 4 and Figure 6 As shown, the second elastic pressure rod 522 is installed in the rotating disk 41 at the position of the limiting groove 42, the axis of the second elastic pressure rod 522 is parallel to the axis of the second spring pin 43, and one end of the second elastic pressure rod 522 can extend into the blind hole 514 (such as Fig. 9 As shown in the figure, on the one hand, it can push the second pressure plate 513 to move, and on the other hand, it can cooperate with the second spring pin 43 to limit the clamping assembly 2. The elastic force of the second elastic pressure rod 522 is less than the elastic force of the second spring pin 43.

[0074] like Figure 4-Figure 6As shown, the connecting rod 523 is vertically mounted on the other end of the second elastic pressure rod 522, the connecting rod 523 is parallel to the axis of the loading plate 32, and a ball head 524 is fixedly mounted on one end of the connecting rod 523 close to the arc groove 521, and the ball head 524 extends into the arc groove 521, and slides along the arc groove 521 driven by the rotating disk 41. When the second elastic pressure rod 522 presses against the blind hole 514 and the second pressure plate 513 is completely pressed into the second hydraulic oil chamber 511b, the ball head 524 moves in the second arc segment 521b following the rotating disk 41.

[0075] like Figure 5 and Figure 6 As shown, during the process that the rotating disk 41 drives the clamping assembly 2 to move from the loading station 131 to the burning station 132, the elastic pressure rod 522 drives the connecting rod 523 to move along the arc segment 1 521a of the arc groove 521, and the elastic pressure rod 522 and Fig. 9 The blind holes 514 in the middle are in a relaxed state. When the rotating disk 41 drives the clamping assembly 2 to move to the burning station 132, the elastic pressure rod 522 drives the connecting rod 523 to move along the arc segment 521b of the arc groove 521. Fig.11 As shown, since the radius of the second arc segment 521b is greater than the radius of the first arc segment 521a, the radius of the trajectory of the movement of the connecting rod 523 is increased, so that the second elastic pressure rod 522 can press against the blind hole 514. Fig. 9 As shown, the second pressure plate 513 moves toward the side close to the hydraulic oil chamber 511, and the oil pressure increases. Figure 7 As shown, the pressure plate 1 512 is pushed to move toward one end away from the hydraulic oil chamber 511, thereby driving the plate body 1 221 to move, and the plate body 1 221 drives the plate body 3 211 to move, so that the distance between the plate body 1 221 and the plate body 2 222, and between the plate body 3 211 and the plate body 4 212 are increased, thereby flattening the sample 6.

[0076] The method of using this embodiment is as follows:

[0077] 1. Install the sample 6 on the clamping assembly 2, clamp the sample 6 with the clamping frame 1 21 and the clamping frame 2 22, and then place the clamping assembly 2 holding the sample 6 on the loading platform 31. After the push rod 311 pushes the clamping assembly 2 through the loading port 121 and the pushing port 332a under the elastic action, the clamping assembly 2 is clamped and closed, the limiting member 223 is inserted into the card slot 322, and the spring pin 1 321 extends into the limiting hole 223a, temporarily limiting the end of the clamping assembly 2, so that the clamping assembly 2 is stably placed on the loading tray 32;

[0078] 2. The linear driver 334 drives the moving plate 331 to move, and the moving plate 331 drives the push plate 332 to move to the limiting groove 42 on the rotating disk 41, and the second spring pin 43 extends into the limiting hole 223a to limit the clamping assembly 2; one end of the second elastic pressure rod 522 extends into the blind hole 514, and at this time, the second elastic pressure rod 522 is in a relaxed state;

[0079] 3. The linear drive 334 drives the moving plate 331 to retreat to the initial position, and the driving motor 44 drives the rotating disk 41 to rotate. The second elastic pressure rod 522 drives the connecting rod 523 to move along the arc segment 1 521a of the arc groove 521. The second elastic pressure rod 522 and the blind hole 514 are in a relaxed state. When the clamping assembly 2 rotates from the loading station 131 to the burning station 132, the second elastic pressure rod 522 drives the connecting rod 523 to move along the arc segment 2 521b of the arc groove 521. The second elastic pressure rod 522 presses against the blind hole 514 tightly, and the blind hole 514 is in a relaxed state. 514 drives the second pressing plate 513 to move into the second hydraulic oil chamber 511b, so that the oil pressure in the hydraulic oil chamber 511 increases, and the oil pressure pushes the first pressing plate 512 and the first plate 221 to move toward the end away from the first hydraulic oil chamber 511a, and the distance between the first plate 221 and the second plate 222 increases. Since the spring pin 23 is vertically connected between the first plate 221 and the third plate 211, the first plate 221 drives the third plate 211 to move, so that the distance between the third plate 211 and the fourth plate 212 increases, and the wrinkles that may appear on the sample 6 are flattened;

[0080] 4. Sample 6 is subjected to a vertical combustion test at the combustion station 132; at the same time, the sample 6 on the original unloading station 134 is taken out, the position is vacated, and rotated to the loading station 131, and the next sample 6 can be loaded. There is no need to wait for the sample 6 to be taken out before loading, which saves the loading time and improves the detection efficiency;

[0081] 5. After the combustion test is completed, the rotating disk 41 drives the clamping assembly 2 to rotate to the cooling station 133 for cooling, and then reaches the unloading station 134 to take out the clamping assembly 2; pull the wrench 246 to move the rack 245, the rack 245 drives the rotating gear 242 to rotate, and the rotating gear 242 drives the baffle 244 to rotate to a position that blocks the weight slot 241. The area between the bottom of the weight slot 241 and the baffle 244 is the position for hanging the weight, so that the position of the hanging weight is fixed, and the accuracy of the test tear length is improved; after the weight is hung at this position and passes through the sample 6, the wrench 246 is pulled in the opposite direction to make the rack 245 move in the opposite direction, the rotating gear 242 drives the baffle 244 to rotate in the opposite direction, and the baffle 244 releases the obstruction to the weight slot 241, and the clamp frame 1 21 and the clamp frame 2 22 can be opened to take out the sample 6, and the end of the sample 6 away from the weight is slowly lifted by hand to make the weight hang in the air, and then put it down and remove the weight to measure the tear length of the sample 6.

[0082] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A flame retardant performance testing device for fire-resistant clothing materials, comprising a box body and a clamping assembly for clamping a sample; characterized in that: The box is equipped with a feeding mechanism, a rotating mechanism and a partition; the partition divides the box into a detection area and a feeding area; The feeding mechanism comprises a feeding platform fixedly mounted on the partition and located in the feeding area for receiving the clamping assembly, a feeding tray fixedly mounted on the partition and located in the detection area for temporarily storing the clamping assembly, and a moving assembly for pushing the clamping assembly to move; a push rod is elastically connected to the feeding platform, and a feeding port is provided on the partition near the feeding platform. The push rod can push the clamping plate assembly on the feeding platform through the feeding port to the feeding tray, and a card slot for clamping the clamping assembly is provided on the feeding tray; The moving assembly includes a moving plate slidably connected to the loading tray, a push plate fixedly connected to one end of the moving plate at the loading port, and a linear driver driving the moving plate to move; a pushing port is provided on the push plate; The rotating mechanism includes a rotating disk arranged in the detection area on one side of the loading disk, a plurality of limit slots provided on the rotating disk for clamping the clamping assembly, and a driving motor for driving the rotating disk to rotate; the rotating disk drives the clamping assembly to sequentially pass through the loading station, the burning station, the cooling station and the unloading station arranged in the detection area; The clamping assembly comprises a clamping frame 1 and a clamping frame 2, a spring pin is connected between the clamping frame 1 and the clamping frame 2, the sample is placed between the clamping frame 1 and the clamping frame 2, one end of the clamping frame 1 and the clamping frame 2 are both provided with an opening so that the end of the sample can contact the flame, and the end of the clamping frame 2 away from the opening is provided with a limiting member that can be clamped in the limiting groove and the clamping groove and can slide along the limiting groove and the clamping groove; The box body is also provided with a flattening mechanism, which includes a hydraulic oil assembly and a tightening assembly. The hydraulic oil assembly includes a hydraulic oil chamber arranged in the second plate body, a pressing plate 1 arranged on the first plate body and capable of extending into the hydraulic oil chamber, a pressing plate 2 installed on the limiter in the hydraulic oil chamber, a blind hole is arranged on the pressing plate 2, and the tightening assembly tightens the blind hole. The oil pressure in the hydraulic oil chamber pushes the pressing plate 1 to move, so that the first plate body moves to flatten the sample. The clamping assembly includes an arc groove opened on the side of the loading disk close to the rotating disk, an elastic pressure rod 2 installed in the limiting groove and capable of extending into the blind hole, and a connecting rod fixedly connected to the end of the elastic pressure rod 2 away from the blind hole and capable of extending into the arc groove; the arc groove includes an arc segment 1 arranged between the loading station and the burning station, and an arc segment 2 arranged between the burning station and the burning station and the unloading station. The radius of the arc segment 1 is smaller than the radius of the arc segment 2, so that the connecting rod moves along the arc groove to the arc segment 2, and the elastic pressure rod 2 clamps the blind hole.

2. The flame retardant performance testing device for fire retardant clothing materials according to claim 1, characterized in that: A spring pin 1 is installed in the clamping slot, and a limiting hole is provided on the limiting member to allow the spring pin 1 to extend into.

3. The flame retardant performance testing device for fire retardant clothing materials according to claim 2, characterized in that: A spring pin 2 which can extend into the limiting hole is installed in the limiting groove.

4. The flame retardant performance testing device for fire retardant clothing materials according to claim 1, characterized in that: A movable clip group is provided at the push port, and the movable clip group includes an upper movable clip and a lower movable clip respectively elastically connected to the push port, so that the push rod pushes the clamping assembly through the push port, and the upper movable clip and the lower movable clip are closed.

5. The flame retardant performance testing device for fire retardant clothing materials according to claim 1, characterized in that: The clamping frame 2 includes plate body 1 and plate body 2, and the clamping frame 1 includes plate body 3 and plate body 4. An elastic pressure rod 1 is connected between plate body 3 and plate body 4; plate body 1 and plate body 2, and plate body 3 and plate body 4 are all slidingly connected, plate body 2 and the limit piece are of integrated design, and a spring pin is connected between plate body 1 and plate body 3, and between plate body 2 and plate body 4.

6. The flame retardant performance testing device for fire retardant clothing materials according to claim 5, characterized in that: The clamping assembly also includes a weight limiting unit arranged on one end of the clamping plate frame one and the clamping plate frame two away from the limiting member. The weight limiting unit includes a weight slot opened on the clamping plate frame one and the clamping plate frame two, a rotating gear arranged on one side of the weight slot, a baffle rod fixedly mounted on the rotating gear, and a rack meshing with the rotating gear. The rack is pushed to move and the rotating gear is driven to rotate, so that the baffle rod can limit the position of the weight hanging in the weight slot.

Images