Elastic testing device for polyester fabric production

Abstract

The invention provides an elasticity testing device for polyester fabric production, and relates to the field of fabric elasticity testing. The device comprises a detection box, two bearing assemblies for carrying fabrics are arranged on the detection box, a soaking assembly is arranged between the bearing assemblies and the detection box, the soaking assembly comprises a soaking part and a quick-drying part, the soaking part is arranged between the detection box and the bearing assemblies, and the quick-drying part is arranged between the detection box and the bearing assemblies. And the quick-drying part is arranged on the detection box. The method has the effect of improving the test precision.

Description

Technical Field

[0001] The present application relates to the field of fabric elasticity testing, and particularly to an elasticity testing device for polyester fabric production. Background Art

[0002] Polyester fabric, also known as polyester fiber fabric, is a fiber-forming high polymer prepared from terephthalic acid and ethylene glycol through an esterification polycondensation reaction, belonging to a high molecular compound; it is a commonly used chemical fiber clothing fabric in daily life.

[0003] Generally, after the production of polyester fabric, it is necessary to test the elasticity of the polyester fabric to ensure that the elasticity of the polyester fabric can meet the needs of users.

[0004] Currently, in the related art, a Chinese patent with the authorized publication number CN117347160A discloses an elasticity testing device for fabrics, including a base, a top seat fixedly installed on the top of the base, a cylinder fixedly installed on the top seat, the output end of the cylinder fixedly connected with a top plate, the top plate being slidably connected with the top seat, and further including: a pressing mechanism, the pressing mechanism includes two groups of fixing plates fixedly installed at the bottom of the top plate, pressing plates are slidably installed at the bottoms of the two groups of fixing plates, telescopic air bags are fixedly installed between the two groups of pressing plates and the adjacent fixing plates, arc-shaped cavities are formed in the two groups of pressing plates, and the air outlet ends of the telescopic air bags are communicated with the adjacent arc-shaped cavities; it can realize the simultaneous extrusion and clamping fixation of both sides of the fabric while improving the stability, and can avoid fixing the four sides of the fabric in the past, which will cause the fabric to be more restricted and limited during the test, thus affecting the free extensibility of the fabric, and can effectively improve the accuracy of the elasticity test results.

[0005] However, the above-mentioned technology can only test the elasticity of the just-produced fabric. However, in the actual use process of the fabric, it may encounter situations such as washing. Therefore, it is impossible to know whether the elasticity of the fabric has changed after washing, resulting in a low test accuracy. Summary of the Invention

[0006] In order to improve the problems existing in the above-mentioned technology, the present application provides an elasticity testing device for polyester fabric production.

[0007] The present application provides an elasticity testing device for polyester fabric production, adopting the following technical solutions: An elasticity testing device for polyester fabric production, including: a detection box, two loading components for carrying the fabric are arranged on the detection box, a wetting component is arranged between the loading component and the detection box, and the wetting component includes: a wetting part and a drying part, the wetting part is arranged between the detection box and the loading component, and the drying part is arranged on the detection box.

[0008] By adopting the above technical solution, during the test, the fabric is placed on the bearing component; then, the wetting component is used to quickly wet and dry the fabric to achieve the effect of simulating the cleaning situation encountered in actual applications; finally, the bearing component performs an elasticity test on the fabric to test whether the elasticity of the fabric meets the requirements. Compared with the traditional test method, it can improve the accuracy of the elasticity test of the fabric.

[0009] Optionally, the wetting part includes: a lower pressing plate, a lower pressing rod, a fixing rod, and a water delivery pipe. The lower pressing plate is arranged inside the detection box, the fixing rod is fixed inside the detection box, a through hole for inserting the fixing rod is formed through the lower pressing plate, one end of the lower pressing rod is connected to the bearing component and the other end is fixed to the lower pressing plate, and the water delivery pipe is communicatively arranged on the detection box.

[0010] By adopting the above technical solution, during the test, the fabric is placed on the bearing component, and the bearing component drives the lower pressing rod to move downward; the lower pressing rod will drive the lower pressing plate to move downward until the fixing rod passes through the through hole, so that the lower pressing plate will press the water body below, and the water body is squeezed by the water delivery pipe onto the fabric to achieve the effect of wetting the fabric.

[0011] Optionally, the drying part includes: an air delivery pipe, a hot air blower, and a waterproof and breathable membrane. The hot air blower is installed on the detection box, one end of the air delivery pipe is connected to the hot air blower and the other end penetrates the detection box, and the waterproof and breathable membrane is arranged on the bearing component.

[0012] By adopting the above technical solution, after the fabric is wetted, the moisture on the fabric can be shaken off by the bearing component; then, the hot air blower can be started, and hot air is delivered to the fabric through the air delivery pipe to quickly dry the fabric, so that the test accuracy is not easily affected.

[0013] Optionally, the bearing component includes: a lifting part, a pressing part, a limiting part, and a testing part. The lifting part includes: a lead screw, a lifting block, and a lifting motor. A lifting groove is formed on the detection box, the lifting block is arranged in the lifting groove, the lead screw is rotatably installed in the lifting groove, and the lead screw threadedly penetrates the lifting block. The lifting motor is installed on the detection box, and the output shaft of the lifting motor is coaxially fixed to the lead screw. The testing part is arranged on the lifting block, and the pressing part and the limiting part are both arranged on the testing part.

[0014] By adopting the above technical solution, during the test, the lifting motor is started to drive the lead screw to rotate, so that the lifting block can drive the lower pressing rod to move downward, so that the lower pressing plate can squeeze the water body.

[0015] Optionally, the testing part includes: a test board, a test rod, a screw rod, and a control motor. A relief groove is formed in the inner wall of the lifting groove. A threaded hole is formed in the test board. One end of the screw rod is rotatably installed on the lifting block, and the other end is threadedly connected to the threaded hole. The control motor is installed on the lifting block, and the output shaft of the control motor is coaxially fixed to the screw rod. An air inlet cavity is formed in the test board. An air inlet hole and an air outlet hole communicating with the air inlet cavity are formed on the test board. The waterproof breathable film is arranged in the air outlet hole. A test hole is formed in any of the test boards. One end of the test rod is fixed to the test board without the test hole, and the other end is arranged in the test hole. A scale value is arranged on the test rod. The pressing part and the limiting part are both arranged on the test board.

[0016] By adopting the above technical solution, after drying the fabric, start the lifting motor to reset the lower pressing plate. At this time, start the control motor again to drive the screw rod to rotate, so that the two test boards move away from each other. During this process, the test rod moves out of the test hole, and the scale value can be observed to judge whether the elasticity of the fabric meets the requirements.

[0017] Optionally, the limiting part includes: a limiting rod and a limiting spring. A limiting hole is formed in the detection box. A telescopic hole is formed in the test board. One end of the limiting rod is arranged in the telescopic hole, and the other end is arranged in the limiting hole. The limiting spring is fixed between the bottom of the telescopic hole and the limiting rod. A guiding surface is arranged on the limiting rod.

[0018] By adopting the above technical solution, with the limiting of the test board by the limiting rod, when the screw rod rotates, the test board is not likely to rotate together with the screw rod, so that the test board can move horizontally.

[0019] Optionally, the pressing part includes: an upper electric cylinder, a pressing roller, a lower electric cylinder, and a receiving plate. The upper electric cylinder is installed on the test board, and the output shaft of the upper electric cylinder is fixed to the pressing roller. The lower electric cylinder is installed on the test board, and the output shaft of the lower electric cylinder is fixed to the receiving plate.

[0020] By adopting the above technical solution, during the test, place the end of the fabric on the receiving plate. Then, start the upper electric cylinder to control the pressing roller to press the fabric, so as to facilitate the elasticity test.

[0021] Optionally, the pressing part further includes: a rubber pad, and the rubber pad is fixed to the receiving plate.

[0022] By adopting the above technical solution, the rubber pad can increase the friction force between the pressing roller and the receiving plate and the fabric, so that the fabric is not likely to break away during the test, thus ensuring the stability of the test.

[0023] Optionally, the testing part further includes: a support plate, a telescopic cylinder, a push rod, a pushing spring, and a pressure sensor. The support plate is fixed on the detection box, the telescopic cylinder is fixed on the support plate, the pressure sensor is installed in the telescopic cylinder, the push rod is arranged in the telescopic cylinder, and the pushing spring is fixed between the push rod and the pressure sensor.

[0024] By adopting the above technical solution, after the test is completed, the two test plates are reset; then, the upper electric cylinder and the lower electric cylinder are started to lift the fabric until the bottom end of the push rod presses down on the fabric; at this time, the pushing spring is compressed, and the pressure value measured by the pressure sensor changes continuously until the threshold value can be reached, so that the fabric can meet the elastic requirements.

[0025] Optionally, the wetting part further includes: a first rubber sleeve and a second rubber sleeve. The first rubber sleeve is fixedly sleeved on the fixed rod, and the second rubber sleeve is fixedly sleeved on the lower pressing plate.

[0026] By adopting the above technical solution, the first rubber sleeve can improve the sealing performance between the fixed rod and the inner wall of the through hole; the second rubber sleeve can improve the sealing performance between the lower pressing plate and the inner wall of the detection box.

[0027] In summary, the present application includes at least one of the following beneficial effects: 1. During the test, place the fabric on the bearing assembly; then, use the wetting assembly to quickly wet and dry the fabric to achieve the effect of simulating the cleaning situation encountered in actual applications; finally, the bearing assembly performs an elastic test on the fabric to test whether the elasticity of the fabric meets the requirements. Compared with the traditional test method, it can improve the accuracy of the elastic test of the fabric.

[0028] 2. After the fabric is wetted, the moisture on the fabric can be shaken off through the bearing assembly; then, the hot air blower can be started, and hot air can be conveyed to the fabric through the air delivery pipe to quickly dry the fabric, so that the test accuracy is not easily affected.

[0029] 3. The first rubber sleeve can improve the sealing performance between the fixed rod and the inner wall of the through hole; the second rubber sleeve can improve the sealing performance between the lower pressing plate and the inner wall of the detection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram according to an embodiment of the present application; Figure 2 is Figure 1 a schematic top view of Figure 3 is along Figure 2 the schematic cross-sectional view taken along the cutting line A-A in Figure 4 is Figure 3 a schematic partial enlarged view of part B in Figure 5 is a schematic cross-sectional view taken along the Figure 2 section line C-C in

[0031] In the figure: 1, detection box; 11, lifting groove; 12, relief groove; 13, limiting hole; 2, wetting part; 21, lower pressing plate; 211, through hole; 22, lower pressing rod; 23, fixing rod; 24, water delivery pipe; 25, first rubber sleeve; 26, second rubber sleeve; 3, drying part; 31, air delivery pipe; 32, hot air blower; 33, waterproof and breathable membrane; 4, lifting part; 41, lead screw; 42, lifting block; 43, lifting motor; 5, testing part; 51, testing plate; 511, air inlet hole; 512, air inlet cavity; 513, air outlet hole; 514, threaded hole; 515, testing hole; 516, telescopic hole; 52, testing rod; 53, screw rod; 54, control motor; 55, support plate; 56, telescopic cylinder; 57, ejector rod; 58, ejecting spring; 59, pressure sensor; 6, limiting part; 61, limiting rod; 611, guiding surface; 62, limiting spring; 7, pressing part; 71, upper electric cylinder; 72, pressing roller; 73, lower electric cylinder; 74, receiving plate; 75, rubber pad. Detailed implementation manners

[0032] The present application provides an elastic testing device for polyester fabric production.

[0033] Referring to Figure 1 , an elastic testing device for polyester fabric production includes: a detection box 1, and the top of the detection box 1 in the embodiment of the present application is open. Two loading components for carrying the fabric are arranged on the detection box 1, and a wetting component is arranged between the loading component and the detection box 1. During testing, the fabric is placed on the loading component; then, the wetting component is used to quickly wet and dry the fabric to achieve the effect of simulating the cleaning situation encountered in actual application; finally, the loading component is used to perform an elastic test on the fabric to test whether the elasticity of the fabric meets the requirements. Compared with the traditional testing method, it can improve the accuracy of the elastic test of the fabric, thereby preventing the so-called "shrinkage" phenomenon of the fabric.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , the wetting component includes: a wetting part 2 and a drying part 3.

[0035] Referring to Figure 3, the wetting part 2 includes: a lower pressing plate 21, a lower pressing rod 22, a fixing rod 23 and a water delivery pipe 24. The fixing rod 23 is vertically fixed on the inner bottom wall of the detection box 1. In the embodiment of the present application, there are multiple fixing rods 23. The lower pressing plate 21 is arranged in the detection box 1 and can move in the vertical direction; and a through hole 211 for the fixing rod 23 to pass through is formed through the lower pressing plate 21.

[0036] See Figure 3 , one end of the lower pressing rod 22 is fixedly connected to the lower pressing plate 21 and the other end is connected to the bearing assembly. The water delivery pipe 24 is communicated with the detection box 1, and the end of the water delivery pipe 24 far from the connection with the detection box 1 extends to the top opening of the detection box 1. During the test, the fabric is placed on the bearing assembly, and the bearing assembly drives the lower pressing rod 22 to move downward; the lower pressing rod 22 will drive the lower pressing plate 21 to move downward until the fixing rod 23 passes through the through hole 211, so that the lower pressing plate 21 will press down the water body below, and the water body is squeezed by the water delivery pipe 24 onto the fabric to achieve the effect of wetting the fabric.

[0037] See Figure 3 , further, the wetting part 2 further includes: a first rubber sleeve 25 and a second rubber sleeve 26. The first rubber sleeve 25 is fixedly sleeved on the fixing rod 23. When the fixing rod 23 passes through the through hole 211, the first rubber sleeve 25 can improve the sealing performance between the fixing rod 23 and the inner wall of the through hole 211. The second rubber sleeve 26 is fixedly sleeved on the peripheral wall of the lower pressing plate 21, and the second rubber sleeve 26 can improve the sealing performance between the lower pressing plate 21 and the inner wall of the detection box 1.

[0038] See Figure 1 , the drying part 3 includes: an air delivery pipe 31, a hot air blower 32 and a waterproof and breathable film 33. The hot air blower 32 is installed on the outer side wall of the detection box 1. One end of the air delivery pipe 31 is connected to the hot air blower 32 and the other end penetrates the detection box 1. After the fabric is wetted, the water on the fabric can be shaken off through the bearing assembly; then, the hot air blower 32 can be started, and hot air is delivered to the fabric through the air delivery pipe 31 to quickly dry the fabric, so that the test accuracy is not easily affected.

[0039] See Figure 1 and Figure 3 , the bearing assembly includes: a lifting part 4, a pressing part 7, a limiting part 6 and a testing part 5.

[0040] See Figure 1 and Figure 3, the lifting part 4 includes: a lead screw 41, a lifting block 42, and a lifting motor 43. A lifting groove 11 is formed in the inner sidewall of the detection box 1 along the vertical direction. The lifting block 42 is slidably arranged in the lifting groove 11 and slides along the vertical direction. One end of the pressing rod 22 away from the lower pressing plate 21 is fixedly connected to the lifting block 42. The lead screw 41 is vertically rotatably installed in the lifting groove 11, and the lead screw 41 penetrates through the lifting block 42 and is in threaded fit therewith. The lifting motor 43 is installed on the top wall of the detection box 1, and the output shaft of the lifting motor 43 is coaxially fixed to the lead screw 41. During the test, the lifting motor 43 is started to drive the lead screw 41 to rotate, so that the lifting block 42 can drive the pressing rod 22 to move downward, so that the lower pressing plate 21 can extrude the water body.

[0041] See Figure 1 and Figure 3 , the testing part 5 includes: a testing plate 51, a testing rod 52, a screw rod 53, and a control motor 54. A threaded hole 514 is formed in the sidewall of the testing plate 51. One end of the screw rod 53 is rotatably installed on the lifting block 42, and the other end is threadedly connected to the threaded hole 514. A relief groove 12 is formed in the inner sidewall of the lifting groove 11. The control motor 54 is located in the relief groove 12 and is installed on the lifting block 42. The output shaft of the control motor 54 is coaxially fixed to the screw rod 53. After the fabric is wetted, the control motor 54 is started to drive the screw rod 53 to drive the testing plate 51 to rotate, so that the water on the fabric can be shaken off.

[0042] See Figure 1 and Figure 3 , an air inlet cavity 512 is formed in the testing plate 51, and an air inlet hole 511 communicating with the air inlet cavity 512 is formed in the sidewall of the testing plate 51. A plurality of air outlet holes 513 communicating with the air inlet cavity 512 are formed in the top wall of the testing part. After the water is shaken off, the testing plate 51 is rotated to the horizontal state. At this time, the air delivery pipe 31 is aligned with the air inlet hole 511, so that the hot air can be delivered into the air inlet cavity 512 through the air inlet hole 511 and blown to the fabric through the air outlet holes 513, so as to achieve the effect of quickly drying the fabric.

[0043] See Figure 1 and Figure 3 , the waterproof and breathable membrane 33 is fixed in the air outlet hole 513. The waterproof and breathable membrane 33 can prevent the water body from entering the air inlet cavity 512 through the air outlet hole 513, so that the water body is not likely to accumulate in the air inlet cavity 512. After the lower pressing plate 21 rises until the fixing rod 23 is separated from the lower pressing plate 21, the water body can fall through the through hole 211 to the lower part of the lower pressing plate 21, so as to achieve the effect of recycling.

[0044] See Figure 1 and Figure 3, on one side of any test plate 51 facing away from the screw 53, a test hole 515 is provided; one end of the test rod 52 is fixedly connected to the test plate 51 without the test hole 515, and the other end is disposed in the test hole 515. In the embodiment of the present application, the test rod 52 is circular. Scale values are provided on the test rod 52. After drying the fabric, the lifting motor 43 is started to reset the lower pressing plate 21; at this time, the control motor 54 is started again to drive the screw 53 to rotate, so that the two test plates 51 move away from each other. During this process, the test rod 52 moves out of the test hole 515, and the scale values (i.e., the scale values corresponding to when the elasticity meets the requirements) can be observed to determine whether the elasticity of the fabric meets the requirements.

[0045] See Figure 4 , the pressing part 7 includes: an upper electric cylinder 71, a pressing roller 72, a lower electric cylinder 73 and a receiving plate 74. The lower electric cylinder 73 is installed on the top wall of the test plate 51, and the output shaft of the lower electric cylinder 73 is fixedly connected to the receiving plate 74. The receiving plate 74 is arc-shaped. The upper electric cylinder 71 is installed on the top wall of the test plate 51. The upper electric cylinder 71 is located above the receiving plate 74, and the output shaft of the upper electric cylinder 71 is fixedly connected to the pressing roller 72. In the embodiment of the present application, the upper electric cylinder 71 and the lower electric cylinder 73 adopt waterproof electric cylinders. During the test, the end of the fabric is placed on the receiving plate 74; then, the upper electric cylinder 71 is started to control the pressing roller 72 to press the fabric, so as to facilitate the elasticity test.

[0046] See Figure 4 , further, the pressing part 7 further includes: a rubber pad 75. The rubber pad 75 is fixed on the top wall of the receiving plate 74 and the pressing roller 72. The rubber pad 75 can increase the friction between the pressing roller 72 and the receiving plate 74 and the fabric, so that the fabric is not easily separated during the test, thereby ensuring the stability of the test.

[0047] See Figure 3 , further, the test part 5 further includes: a support plate 55, a telescopic cylinder 56, a top rod 57, a top spring 58 and a pressure sensor 59. The support plate 55 is fixed on the top wall of the detection box 1, and the telescopic cylinder 56 is fixed on the support plate 55. The pressure sensor 59 is fixed in the telescopic cylinder 56; one end of the top rod 57 is disposed in the telescopic cylinder 56 and the other end extends out of the telescopic cylinder 56, and the end of the top rod 57 away from the telescopic cylinder 56 is provided as a ball head.

[0048] See Figure 3, the pushing spring 58 is fixed between the push rod 57 and the pressure sensor 59. After the test is completed, the two test plates 51 are reset. Then, the upper electric cylinder 71 and the lower electric cylinder 73 are started to lift the fabric until the bottom end of the push rod 57 presses down on the fabric. At this time, the pushing spring 58 is compressed, and the pressure value measured by the pressure sensor 59 changes continuously until the threshold value can be reached, so that the fabric can meet the elastic requirements. There are two test methods, one is more inclined to ductility, and the other is more inclined to comprehensive elasticity or anti-top tear resistance, thus greatly improving the test accuracy.

[0049] See Figure 5 , the limiting part 6 includes: a limiting rod 61 and a limiting spring 62. A limiting hole 13 is opened on the inner side wall of the detection box 1, and a telescopic hole 516 is opened on the side of the test plate 51 close to the screw rod 53. One end of the limiting rod 61 is arranged in the telescopic hole 516 and the other end is arranged in the limiting hole 13. By using the limiting rod 61 to limit the test plate 51, when the screw rod 53 rotates, the test plate 51 is not easy to rotate together with the screw rod 53, so that the test plate 51 can move horizontally.

[0050] See Figure 5 , the limiting spring 62 is fixed between the limiting rod 61 and the bottom of the telescopic hole 516. The limiting spring 62 is used to push the limiting rod 61 to insert into the limiting hole 13. An inclined guiding surface 611 is arranged at the bottom of the end of the limiting rod 61 away from the limiting spring 62, and the end of the guiding surface 611 close to the limiting spring 62 extends out of the limiting hole 13. If the lifting block 42 needs to descend, the limiting rod 61 will automatically move towards the telescopic hole 516 through the guiding surface 611, so that it is not easy to affect the descent of the test plate 51.

[0051] The working principle of an elastic testing device for polyester fabric production in this application during use is as follows: During the test, the fabric is placed on the bearing assembly, and the bearing assembly drives the lower pressing rod 22 to move downward. The lower pressing rod 22 will drive the lower pressing plate 21 to move downward until the fixing rod 23 passes through the through hole 211, so that the lower pressing plate 21 will press down the water body below, and the water body is squeezed by the water delivery pipe 24 onto the fabric to achieve the effect of wetting the fabric.

[0052] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An elastic testing device for the production of polyester fabrics, characterized in that, Comprising: A detection box (1), on which there are provided two loading components for loading fabrics. A wetting component is provided between the loading components and the detection box (1). The wetting component includes: a wetting part (2) and a drying part (3). The wetting part (2) is arranged between the detection box (1) and the loading components, and the drying part (3) is arranged on the detection box (1).

2. The elastic testing device for polyester fabric production according to claim 1, characterized in that, The wetting part (2) includes: a lower pressing plate (21), a lower pressing rod (22), a fixing rod (23) and a water delivery pipe (24). The lower pressing plate (21) is arranged inside the detection box (1), the fixing rod (23) is fixed inside the detection box (1). A through hole (211) for inserting the fixing rod (23) is formed through the lower pressing plate (21). One end of the lower pressing rod (22) is connected to the loading component and the other end is fixed to the lower pressing plate (21). The water delivery pipe (24) is communicated and arranged on the detection box (1).

3. The elastic testing device for polyester fabric production according to claim 2, wherein, The drying part (3) includes: an air delivery pipe (31), a hot air blower (32) and a waterproof and breathable membrane (33). The hot air blower (32) is installed on the detection box (1). One end of the air delivery pipe (31) is connected to the hot air blower (32) and the other end penetrates through the detection box (1). The waterproof and breathable membrane (33) is arranged on the loading component.

4. The elastic testing device for polyester fabric production according to claim 3, characterized in that, The loading component includes: a lifting part (4), a pressing part (7), a limiting part (6) and a testing part (5). The lifting part (4) includes: a lead screw (41), a lifting block (42) and a lifting motor (43). A lifting groove (11) is formed on the detection box (1). The lifting block (42) is arranged in the lifting groove (11). The lead screw (41) is rotatably installed in the lifting groove (11), and the lead screw (41) threadedly penetrates through the lifting block (42). The lifting motor (43) is installed on the detection box (1), and the output shaft of the lifting motor (43) is coaxially fixed to the lead screw (41). The testing part (5) is arranged on the lifting block (42). The pressing part (7) and the limiting part (6) are both arranged on the testing part (5).

5. The elastic testing device for polyester fabric production according to claim 4, characterized in that, The test section (5) includes: a test plate (51), a test rod (52), a screw rod (53), and a control motor (54). A relief groove (12) is formed in the inner wall of the lifting groove (11). A threaded hole (514) is formed in the test plate (51). One end of the screw rod (53) is rotatably installed on the lifting block (42), and the other end is threadedly connected to the threaded hole (514). The control motor (54) is installed on the lifting block (42), and the output shaft of the control motor (54) is coaxially fixed to the screw rod (53). An air inlet cavity (512) is formed in the test plate (51). An air inlet hole (511) and an air outlet hole (513) communicating with the air inlet cavity (512) are provided on the test plate (51). The waterproof and breathable film (33) is arranged in the air outlet hole (513). A test hole (515) is formed in any of the test plates (51). One end of the test rod (52) is fixed to the test plate (51) without the test hole (515), and the other end is arranged in the test hole (515). A scale value is provided on the test rod (52). The pressing part (7) and the limiting part (6) are both arranged on the test plate (51).

6. The elastic testing device for the production of polyester fabrics according to claim 5, characterized in that, The limiting part (6) includes: a limiting rod (61) and a limiting spring (62). A limiting hole (13) is formed in the detection box (1). A telescopic hole (516) is formed in the test plate (51). One end of the limiting rod (61) is arranged in the telescopic hole (516), and the other end is arranged in the limiting hole (13). The limiting spring (62) is fixed between the bottom of the telescopic hole (516) and the limiting rod (61). A guiding surface (611) is provided on the limiting rod (61).

7. The elastic testing device for polyester fabric production according to claim 5, characterized in that, The pressing part (7) includes: an upper electric cylinder (71), a pressing roller (72), a lower electric cylinder (73), and a receiving plate (74). The upper electric cylinder (71) is installed on the test plate (51), and the output shaft of the upper electric cylinder (71) is fixed to the pressing roller (72). The lower electric cylinder (73) is installed on the test plate (51), and the output shaft of the lower electric cylinder (73) is fixed to the receiving plate (74).

8. The elastic testing device for polyester fabric production according to claim 7, characterized in that, The pressing part (7) further includes: a rubber pad (75). The rubber pad (75) is fixed to the receiving plate (74).

9. The elastic testing device for polyester fabric production according to claim 5, characterized in that, The test section (5) further includes: a support plate (55), a telescopic cylinder (56), a push rod (57), a pushing spring (58), and a pressure sensor (59). The support plate (55) is fixed to the detection box (1). The telescopic cylinder (56) is fixed to the support plate (55). The pressure sensor (59) is installed in the telescopic cylinder (56). The push rod (57) is arranged in the telescopic cylinder (56). The pushing spring (58) is fixed between the push rod (57) and the pressure sensor (59).

10. The elastic testing device for polyester fabric production according to claim 2, characterized in that, The wetting part (2) further includes: a first rubber sleeve (25) and a second rubber sleeve (26). The first rubber sleeve (25) is fixedly sleeved on the fixed rod (23), and the second rubber sleeve (26) is fixedly sleeved on the lower pressing plate (21).

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