A performance testing device for nonwoven fabrics

Abstract

The present application relates to the technical field of non-woven fabric performance testing, and particularly relates to a non-woven fabric performance testing device, which comprises a base, a circular plate, a servo motor and a rotating plate, etc., the top of the base is connected with the circular plate, the servo motor is installed on the circular plate, the output shaft of the servo motor is connected with the rotating plate, and the rotating plate is uniformly and interval spaced apart with arc-shaped openings in the circumferential direction. The output shaft of the servo motor can drive the placement block one to move, the placement block one can pull the non-woven fabric to perform tensile strength test, the output shaft of the stepping motor can drive the placement plate to rotate, the non-woven fabric which has not been tested is rotated into the placement block one and the placement block two, the supporting block pushes out the broken non-woven fabric from the placement block one and the placement block two, the non-woven fabric is tested in batches, and the non-woven fabric can be automatically unloaded and loaded, the test time is shortened, and the overall production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric performance testing technology, and in particular to a nonwoven fabric performance testing device. Background Technology

[0002] Nonwoven fabrics are a new type of fiber product made directly from polymer chips, short fibers or filaments through various web forming methods and consolidation technologies. They have a soft, breathable and planar structure, are characterized by low cost and the ability to adjust material properties according to needs, and are widely used in many fields such as medical and health care, environmental filtration, geotechnical construction, agriculture, and packaging.

[0003] In the production process of nonwoven fabrics, in order to ensure that the nonwoven fabrics meet specific application standards, a series of performance tests need to be carried out on the nonwoven fabrics. Among them, the tensile strength test of nonwoven fabrics is a key indicator for evaluating the tensile strength and elongation of nonwoven fabrics under stress until they break.

[0004] Current testing equipment can perform batch testing on nonwoven fabrics, but after each test, manual unloading and loading are required. This process is relatively time-consuming, especially when dealing with large batches of nonwoven fabrics. Manual operation will significantly increase the overall testing cycle. Specifically, manual unloading and loading will not only prolong the time of a single test, but may also reduce overall production efficiency and create a process bottleneck. Summary of the Invention

[0005] In view of this, the present invention provides a performance testing device for nonwoven fabrics, which can overcome the disadvantages of manual unloading and loading, which not only prolong the time of a single test, but may also reduce the overall production efficiency.

[0006] The technical solution of the present invention is as follows: a performance testing device for nonwoven fabrics, comprising a base, a circular plate, a servo motor, a rotating plate, a first placement block, a first sliding shaft, a second placement block, a pressure sensor, a loading mechanism, and a clamping mechanism. A circular plate is connected to the top of the base, a servo motor is mounted on the circular plate, and a rotating plate is connected to the output shaft of the servo motor. The rotating plate has evenly spaced arc-shaped openings around its circumference. A first sliding groove is evenly spaced around the top of the circular plate, and a first placement block for placing nonwoven fabric is slidably connected within each first sliding groove. A first sliding shaft is connected to each first placement block, and the first sliding shaft is located within the arc-shaped opening. A second sliding groove is evenly spaced around the top of the circular plate, and a second placement block for placing nonwoven fabric is slidably connected within each second sliding groove. A pressure sensor is installed within each second sliding groove, and the second placement block contacts the pressure sensor. The loading mechanism is used to load nonwoven fabric into the first and second placement blocks, and the clamping mechanism is used to clamp the nonwoven fabric within the first and second placement blocks.

[0007] As a preferred embodiment of the present invention, the loading mechanism includes a rotating ring, an internal gear ring, a stepper motor, a gear, a placement plate, and a support assembly. The rotating ring is rotatably connected to the top of the circular plate, and the internal gear ring is connected inside the rotating ring. The stepper motor is installed at the bottom of the circular plate, and the gear is connected to the output shaft of the stepper motor. The gear meshes with the internal gear ring. Placement plates for placing nonwoven fabric are evenly spaced around the top of the rotating ring, and the support assembly is used to support the nonwoven fabric on the placement plate.

[0008] As a preferred embodiment of the present invention, the support assembly includes a slider, a support block, and a second sliding shaft. Sliders are slidably connected to both sides of the placement plate. Support blocks for supporting non-woven fabric on the placement plate are evenly spaced at the top of the sliders. A second sliding shaft is connected to each slider and slides through the bottom of the slider. Two annular guide grooves are opened at the top of the circular plate. Both annular guide grooves are located around the servo motor, and the rotating ring is located between the two annular guide grooves. The second sliding shaft is located inside the annular guide groove. The annular guide grooves are V-shaped near the placement block one and the placement block two.

[0009] As a preferred embodiment of the present invention, the clamping mechanism includes a U-shaped tube, a piston rod, a clamping block, an annular tube, an air guide tube, and an air inlet tube. The bottom of both the first and second placement blocks are connected to the U-shaped tube. The piston rod is slidably and sealed inside the U-shaped tube. The piston rod is connected to a clamping block for clamping the non-woven fabric inside the first and second placement blocks. The upper part of the base is connected to the annular tube. The annular tube and the U-shaped tube are connected through the air guide tube. The air inlet tube is connected to the annular tube and passes through the base.

[0010] As a preferred embodiment of the present invention, it further includes a protective cover, wherein the top of the circular plate has an annular placement groove, and the protective cover is placed in the annular placement groove.

[0011] As a preferred embodiment of the present invention, the top of the protective cover is made of a transparent material.

[0012] As a preferred embodiment of the present invention, mounting holes are evenly spaced around the lower part of the base.

[0013] As a preferred embodiment of the present invention, the top of the clamping block, the inner top of the first placement block, and the inner top of the second placement block all have rubber layers.

[0014] The beneficial effects of this invention are as follows: The output shaft of the servo motor can drive the first placement block to move, and the first placement block can pull the nonwoven fabric to perform tensile strength testing. The output shaft of the stepper motor can drive the placement plate to rotate, rotating the untested nonwoven fabric into the first and second placement blocks. The support block pushes the broken nonwoven fabric out from the first and second placement blocks, enabling batch testing of nonwoven fabrics. It can also automatically unload and load materials, shorten the testing time, and improve the overall production efficiency. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0016] Figure 2 A three-dimensional structural schematic diagram of the circular plate, rotating plate, and arc-shaped opening of the present invention is shown.

[0017] Figure 3 A cross-sectional view of the circular plate of the present invention is shown.

[0018] Figure 4 The diagram shows a three-dimensional structural schematic of the slide 1, placement block 1, slide 2, placement block 2 and pressure sensor of the present invention.

[0019] Figure 5 A three-dimensional structural schematic diagram of the loading mechanism of the present invention is shown.

[0020] Figure 6 A three-dimensional structural schematic diagram of the internal gear ring, stepper motor, and gear of the present invention is shown.

[0021] Figure 7 A cross-sectional view of the placement plate of the present invention is shown.

[0022] Figure 8 A three-dimensional structural schematic diagram of the annular guide groove and annular placement groove of the present invention is shown.

[0023] Figure 9 The present invention is shown. Figure 8 Enlarged view of part A in the middle.

[0024] Figure 10 A three-dimensional structural schematic diagram of the clamping mechanism of the present invention is shown.

[0025] Figure 11 A cross-sectional view of the second placement block of the present invention is shown.

[0026] Reference numerals: 1_Base, 2_Circular plate, 3_Servo motor, 4_Rotating plate, 5_Arc-shaped opening, 6_Slide groove one, 7_Placement block one, 8_Slide shaft one, 9_Slide groove two, 10_Placement block two, 11_Pressure sensor, 121_Rotating ring, 122_Internal gear ring, 123_Stepper motor, 124_Gear, 125_Placement plate, 126_Slider, 127_Support block, 128_Slide shaft two, 129_Annular guide groove, 131_U-shaped tube, 132_Piston rod, 133_Clamping block, 134_Annular tube, 135_Air guide tube, 136_Air inlet tube, 141_Annular placement groove, 142_Protective cover, 15_Mounting hole. Detailed Implementation

[0027] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The technical solutions of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. It should be understood that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Reference Figures 1-11 A performance testing device for nonwoven fabrics includes a base 1, a circular plate 2, a servo motor 3, a rotating plate 4, a placement block 7, a sliding shaft 8, a placement block 2 10, a pressure sensor 11, a loading mechanism, and a clamping mechanism. The base 1 has mounting holes 15 evenly spaced around its lower circumference. The circular plate 2 is bolted to the top of the base 1. The servo motor 3 is bolted to the middle of the circular plate 2. The rotating plate 4 is connected to the output shaft of the servo motor 3. The rotating plate 4 has arc-shaped openings 5 ​​evenly spaced around its circumference. The top of the circular plate 2 has sliding grooves 6 evenly spaced around its circumference. Each of the sliding grooves 6 is slidably connected to a pressure sensor. Placement block 7 is connected to a sliding shaft 8 at its top. The sliding shaft 8 is located inside the arc-shaped opening 5. The top of the circular plate 2 is evenly spaced with sliding grooves 9. The number of arc-shaped openings 5, sliding grooves 6 and 9 is the same. Placement block 10 is slidably connected inside each sliding groove 9. Pressure sensor 11 is installed by bolts on the side of the sliding groove 9 closest to placement block 7. Placement block 10 and pressure sensor 11 are in contact. The loading mechanism is used to load nonwoven fabric into placement block 7 and placement block 10. The clamping mechanism is used to clamp the nonwoven fabric inside placement block 7 and placement block 10.

[0030] Reference Figures 5-9 The loading mechanism includes a rotating ring 121, an internal gear ring 122, a stepper motor 123, a gear 124, a placement plate 125, and a support assembly. The rotating ring 121 is rotatably connected to the top of the circular plate 2, and the internal gear ring 122 is connected inside the rotating ring 121. The stepper motor 123 is bolted to the bottom of the circular plate 2. The gear 124 is connected to the output shaft of the stepper motor 123 by a key. The gear 124 meshes with the internal gear ring 122. The placement plate 125 is evenly spaced around the top of the rotating ring 121. The support assembly is used to support the nonwoven fabric on the placement plate 125.

[0031] Reference Figures 5-9The support assembly includes a slider 126, a support block 127, and a second sliding shaft 128. Slider 126 is slidably connected to both sides of the placement plate 125. Support blocks 127 are evenly spaced on the top of slider 126. The second sliding shaft 128 is connected to each slider 126. The second sliding shaft 128 slides through the bottom of slider 126. Two annular guide grooves 129 are opened on the top of the circular plate 2. The two annular guide grooves 129 are located on the periphery of the servo motor 3, and the rotating ring 121 is located between the two annular guide grooves 129. The second sliding shaft 128 is located inside the annular guide groove 129. The position of the annular guide groove 129 near the first placement block 7 and the second placement block 10 is V-shaped.

[0032] Reference Figure 10 and Figure 11 The clamping mechanism includes a U-shaped tube 131, a piston rod 132, a clamping block 133, an annular tube 134, an air guide tube 135, and an air inlet tube 136. The bottom of both placement block 17 and placement block 2 10 are connected to the U-shaped tube 131. Piston rods 132 are slidably and sealingly connected to both sides inside the U-shaped tube 131. The upper ends of the two piston rods 132 inside the same U-shaped tube 131 are connected to the clamping block 133. The top of the clamping block 133, the top of placement block 17, and the placement block... The top of the two 10s is covered with a rubber layer. The rubber layer has a high coefficient of friction, which can provide better grip and stability on the contact surface and ensure a more secure clamping effect. The upper part of the base 1 is connected to an annular tube 134. An air guide tube 135 is connected between the annular tube 134 and the U-shaped tube 131. Both the annular tube 134 and the U-shaped tube 131 are connected to the air guide tube 135. An air inlet tube 136 is connected to the right side of the annular tube 134 and passes through the right side of the base 1.

[0033] Workers can insert bolts into the mounting holes 15 to install the base 1 on the ground, improving its stability. Then, the nonwoven fabric is placed into the placement plate 125, with support blocks 127 supporting both ends. The output shaft of the stepper motor 123 is then rotated, driving the gear 124 to rotate. The gear 124 drives the internal gear ring 122 to rotate, which in turn drives the rotating ring 121 to rotate. The rotating ring 121 then drives the placement plate 125 to rotate, moving the nonwoven fabric into placement blocks 7 and 10. Support blocks 127 also move into these blocks. The rotation of the placement plate 125 also drives the sliding shaft 128 to rotate, which slides within the annular guide groove 129. When the sliding shaft 128... When slide 28 to the V-shaped position of the annular guide groove 129, slide shaft 2 128 will slide towards the rotating ring 121, and support block 127 will slide towards the rotating ring 121 accordingly. Support block 127 moves out from placement block 1 7 and placement block 2 10. Support block 127 no longer supports the two ends of the nonwoven fabric, and the two ends of the nonwoven fabric will fall onto the top of clamping block 133. At this time, stepper motor 123 is turned off, and then air source is connected to air inlet pipe 136. Air enters air inlet pipe 136 and then enters annular pipe 134 through air inlet pipe 136. Subsequently, air enters U-shaped pipe 131 through air guide pipe 135 and pushes piston rod 132 to move upward. Piston rod 132 drives clamping block 133 to move upward. Clamping block 133 will place placement block 7. The nonwoven fabric is clamped in the second placement block 10, and then the output shaft of the servo motor 3 is controlled to rotate, driving the rotating plate 4 to rotate. The rotating plate 4 pulls the sliding shaft 8 through the arc-shaped opening 5, causing the sliding shaft 8 to move closer to the servo motor 3. This allows the placement block 7 to move closer to the servo motor 3, and the placement block 7 can pull the nonwoven fabric to perform a tensile strength test. The nonwoven fabric pulls the second placement block 10, which squeezes the pressure sensor 11. The pressure sensor 11 senses the pressure value and can be connected to an external computer. The pressure sensor 11 feeds back the data to the external computer, which can then obtain the tensile strength of the nonwoven fabric. After the nonwoven fabric clamped by the clamping block 133 breaks completely, the control... The output shaft of servo motor 3 rotates in the reverse direction, causing rotating plate 4 to rotate in the reverse direction. Rotating plate 4 pulls sliding shaft 8 through arc-shaped opening 5, causing sliding shaft 8 to move away from servo motor 3. This allows placement block 7 to move away from servo motor 3, resetting placement block 7. Then, the air supply to air inlet pipe 136 is disconnected, and clamping block 133 moves downward under its own weight, loosening the broken nonwoven fabric. Next, the output shaft of stepper motor 123 is controlled to rotate, causing placement plate 125 to rotate, rotating the untested nonwoven fabric into placement block 7 and placement block 10. Support block 127 also moves into placement block 7 and placement block 10, pushing the broken nonwoven fabric out of placement block 7 and placement block 10.The second slide shaft 128 will slide out from the V-shaped position of the annular guide groove 129 and slide away from the rotating ring 121. The support block 127 will also slide away from the rotating ring 121. Then, the next slide shaft 128 will slide to the V-shaped position of the annular guide groove 129 and slide towards the rotating ring 121. The support block 127 will also slide towards the rotating ring 121. The support block 127 will then move out from the placement block 7 and placement block 10, and will no longer support the two ends of the nonwoven fabric. The two ends of the nonwoven fabric will fall onto the top of the clamping block 133. At this point, the stepper motor 123 is turned off, and the above operation is repeated to perform batch testing of the nonwoven fabric. This also allows for automatic unloading and loading, shortening testing time and improving overall production efficiency.

[0034] Reference Figure 1 and Figure 8 It also includes a protective cover 142. The top of the circular plate 2 has an annular placement groove 141, and the protective cover 142 is placed in the annular placement groove 141. The protective cover 142 can block the broken nonwoven fabric and prevent the broken nonwoven fabric from flying out and injuring people. The top of the protective cover 142 is made of transparent material so as to observe the test status of the nonwoven fabric.

[0035] Obviously, the embodiments described above are only some embodiments of the present invention, and not all embodiments. They only express the preferred implementation of the present invention and are described in a relatively specific and detailed manner, but should not be construed as limiting the scope of the present invention.

[0036] It should be noted that, for those skilled in the art, various modifications, additions or subtractions, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A device for testing the properties of nonwoven fabric, comprising a base (1) and a circular plate (2), the circular plate (2) being attached to the top of the base (1), characterized in that: It also includes a servo motor (3), a rotating plate (4), a placement block one (7), a sliding shaft one (8), a placement block two (10), a pressure sensor (11), a loading mechanism, and a clamping mechanism. The servo motor (3) is mounted on the circular plate (2), and the rotating plate (4) is connected to the output shaft of the servo motor (3). The rotating plate (4) has arc-shaped openings (5) evenly spaced around its circumference. The top of the circular plate (2) has a sliding groove one (6) evenly spaced around its circumference. Placement blocks one (7) for placing nonwoven fabric are slidably connected in the sliding groove one (6). Placement blocks one (7) are mounted on the placement blocks one (7). Each is connected to a sliding shaft (8), which is located inside the arc-shaped opening (5). The top of the circular plate (2) is evenly spaced with sliding grooves (9). Each sliding groove (9) is slidably connected to a placement block (10) for placing nonwoven fabric. Each sliding groove (9) is equipped with a pressure sensor (11). The placement block (10) and the pressure sensor (11) are in contact. The loading mechanism is used to load the nonwoven fabric into the placement block (7) and the placement block (10). The clamping mechanism is used to clamp the nonwoven fabric in the placement block (7) and the placement block (10). The loading mechanism includes a rotating ring (121), an internal gear ring (122), a stepper motor (123), a gear (124), a placement plate (125), and a support assembly. The rotating ring (121) is rotatably connected to the top of the circular plate (2), and the internal gear ring (122) is connected inside the rotating ring (121). The stepper motor (123) is installed at the bottom of the circular plate (2), and the gear (124) is connected to the output shaft of the stepper motor (123). The gear (124) meshes with the internal gear ring (122). The top of the rotating ring (121) is evenly spaced with placement plates (125) for placing nonwoven fabric. The support assembly is used to support the nonwoven fabric on the placement plate (125). The support assembly includes a slider (126), a support block (127), and a second sliding shaft (128). The slider (126) is slidably connected to both sides of the placement plate (125). The top of the slider (126) is evenly spaced with support blocks (127) for supporting the nonwoven fabric on the placement plate (125). The second sliding shaft (128) is connected to the slider (126). The second sliding shaft (128) slides through the bottom of the slider (126). The top of the circular plate (2) has two annular guide grooves (129). The two annular guide grooves (129) are located around the servo motor (3), and the rotating ring (121) is located between the two annular guide grooves (129). The second sliding shaft (128) is located inside the annular guide groove (129). The position of the annular guide groove (129) near the first placement block (7) and the second placement block (10) is V-shaped.

2. The device for testing the properties of nonwoven fabric according to claim 1, wherein: The clamping mechanism includes a U-shaped tube (131), a piston rod (132), a clamping block (133), an annular tube (134), an air guide tube (135), and an air inlet tube (136). The bottom of the first placement block (7) and the bottom of the second placement block (10) are both connected to the U-shaped tube (131). The piston rod (132) is slidably and sealed inside the U-shaped tube (131). The clamping block (133) for clamping the non-woven fabric inside the first placement block (7) and the second placement block (10) is connected to the piston rod (132). The annular tube (134) is connected to the upper part of the base (1). The annular tube (134) and the U-shaped tube (131) are connected through the air guide tube (135). The air inlet tube (136) is connected to the annular tube (134). The air inlet tube (136) passes through the base (1).

3. The performance testing device for nonwoven fabrics as described in claim 2, characterized in that: It also includes a protective cover (142), and the top of the circular plate (2) has an annular placement groove (141), in which the protective cover (142) is placed.

4. The performance testing device for nonwoven fabrics as described in claim 3, characterized in that: The top of the protective cover (142) is made of transparent material.

5. The performance testing device for nonwoven fabrics as described in claim 4, characterized in that: The base (1) has mounting holes (15) evenly spaced around its lower circumference.

6. The performance testing device for nonwoven fabrics as described in claim 5, characterized in that: The top of the clamping block (133), the top of the inner part of the first placement block (7), and the top of the inner part of the second placement block (10) all have rubber layers.

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