Device for testing breaking strength of polyester filament non-woven fabric

Abstract

The utility model relates to the technical field of strength testing, in particular to a polyester filament non-woven fabric breaking strength testing device which comprises a frame body, a first rotating shaft, a second rotating shaft, a first winding roller, a second winding roller, a clamping mechanism, fabric, sliding grooves and sliding blocks. One side of the frame body is rotationally connected with a third gear through a circular shaft, one end of the first rotating shaft and one end of the second rotating shaft both penetrate through one side of the frame body and are fixedly connected with a first gear and a second gear respectively, the first rack is meshed with the first gear and the third gear respectively, the second rack is meshed with the second gear and the third gear respectively, and a motor is fixedly installed on one side of the third gear; through the arrangement of the roller winding roller, the two ends of the cloth are tensioned, the testing effect is improved, the winding is tightened, the possibility of slipping during testing is avoided, and the problems that when an existing testing device is used for testing, the fixed positions of the two ends of the cloth are prone to damage, and slipping is prone to occurring are solved.

Description

Technical Field

[0001] This utility model relates to the field of strength testing technology, and in particular to a device for testing the breaking strength of polyester filament nonwoven fabric. Background Technology

[0002] In the production process of polyester filament nonwoven fabric, it is necessary to stretch the produced fabric to test its breaking strength and ensure the product qualification rate. Therefore, the breaking strength testing device is one of the essential devices in the production process of high-strength polyester filament nonwoven fabric.

[0003] In the prior art, Chinese Patent Publication No. CN210513947U discloses a device for testing the tensile strength of high-strength polyester filament nonwoven fabric. The device includes a main body, with a scale on one side of the inner surface of the main body. A hydraulic rod is located at the bottom of the inner surface of the main body, and connecting plates are welded to the upper outer surface of the hydraulic rod and the top of the inner surface of the main body. A first clamping plate is located on one side of the upper outer surface of each of the two sets of connecting plates, and a second clamping plate is located on the other side of the upper outer surface of each of the two sets of connecting plates. The advantages of this invention are: it can securely fix the fabric to the device, preventing the fabric from falling off the device's mounting base during the tensile test due to instability, thus preventing the test from proceeding normally. It also facilitates the cleaning of lint and impurities that fall from the fabric onto the device during the tensile test, resulting in a better user experience.

[0004] However, the aforementioned patent has some shortcomings. In actual use, when conducting tests, the two ends of the fabric are clamped by the first and second clamping plates. Although this increases the clamping area, the first and second clamping plates are in rigid contact during clamping. This may cause damage to the fabric after clamping, affecting the strength test. At the same time, the vertically arranged clamping mechanism may cause the fabric to slide within the clamping plates under large tensile forces during testing, which also affects the test results. Therefore, a polyester filament nonwoven fabric breaking strength testing device is proposed to solve the above problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model proposes a tensile strength testing device for polyester filament nonwoven fabric. By using a set roller winding method, the two ends of the fabric are tightened, improving the testing effect, and the winding and tightening avoids the possibility of slippage during testing.

[0006] The technical solution to achieve the purpose of this utility model is as follows: a tensile strength testing device for polyester filament nonwoven fabric, comprising a frame, wherein a rotating shaft 1 and a rotating shaft 2 are rotatably connected to the inner wall of the frame, and a winding roller 1 and a winding roller 2 are fixedly connected to the surfaces of the rotating shaft 1 and the rotating shaft 2, respectively. A snap-fit ​​mechanism is provided on the surfaces of the winding roller 1 and the winding roller 2, and the same fabric is provided on the surfaces of the winding roller 1 and the winding roller 2 through the snap-fit ​​mechanism. Two sliding grooves are opened on one side of the frame, and sliders are slidably connected to the inner walls of the two sliding grooves. A rack 1 and a rack 2 are fixedly connected to one side of the two sliders, respectively. A gear 3 is rotatably connected to one side of the frame through a round shaft. One end of each of the rotating shaft 1 and the rotating shaft 2 passes through one side of the frame and is fixedly connected to gear 1 and gear 2, respectively. Rack 1 meshes with gear 1 and gear 3, respectively, and rack 2 meshes with gear 2 and gear 3, respectively. A motor is fixedly installed on one side of gear 3.

[0007] In some embodiments, the snap-fit ​​mechanism includes arc-shaped grooves formed on the surfaces of roller one and roller two. Multiple springs are fixedly connected to the inner walls of the two arc-shaped grooves. The multiple springs are fixedly connected to two clamping plates. The surfaces of the two clamping plates are slidably connected to the inner walls of the corresponding two arc-shaped grooves. Multiple steel needles are fixedly connected to one side of each of the two clamping plates.

[0008] In some embodiments, the inner wall of the frame is fixedly connected to limit rod one and limit rod two, respectively, and the fabric is respectively overlapped on the surfaces of limit rod one and limit rod two.

[0009] In some embodiments, a fan is fixedly connected to the inner bottom wall of the frame, and two blocks are fixedly connected to the inner wall of the frame. The upper surfaces of the two blocks are slidably connected to the same collection net box.

[0010] In some embodiments, a through-slot plate is fixedly connected to the inner wall of the frame, and the upper surface of the collection net box is in contact with the lower surface of the through-slot plate.

[0011] Compared with existing technologies, the significant advantages of this invention are:

[0012] Firstly, this invention utilizes a spring to pull a clamping plate, causing it to shift and creating a gap between the clamping plate and the arc-shaped groove for the fabric to pass through. After the fabric is passed through, the clamping plate is released, and the clamping plate, under the spring's reset, clamps the fabric. During the clamping plate's reset process, a steel needle can pass through the fabric, further securing it. The clamping plates on roller one and roller two are positioned oppositely, but the fabric is fixed in the same way. After fixing, the motor and fan are started. The motor drives gear three to rotate, which in turn drives rack one and rack two, which mesh with it, to slide inside the groove. Through the sliding of rack one and rack two, gear one and gear two can be rotated, which in turn drives roller one and roller two to rotate, thus tightening the fabric. This allows for testing the fabric's breaking strength during the tightening process, improving the stability and effectiveness of the test.

[0013] Secondly, this utility model uses a fan to absorb the lint generated during the pulling process, and the collection net box can centrally process the lint. The net in the collection net box can adhere the lint, preventing it from being blown away and improving the collection effect.

[0014] This solves the problem that existing testing devices are prone to damaging the fixed points at both ends of the fabric and easily slip off during testing. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the frame cross-section structure provided in one embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the winding tension testing mechanism provided in one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the roller cutting structure provided in one embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Frame; 2. Fan; 3. Collection box; 4. Through slot plate; 5. Rotating shaft one; 6. Rotating shaft two; 7. Roller one; 8. Roller two; 9. Fabric; 10. Slide groove; 11. Sliding block; 12. Rack one; 13. Rack two; 14. Gear one; 15. Gear two; 16. Gear three; 17. Motor; 18. Limiting rod one; 19. Limiting rod two; 20. Arc groove; 21. Clamping plate; 22. Spring; 23. Steel needle. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] This utility model provides an improved device for testing the tensile strength of polyester filament nonwoven fabrics. The technical solution of this utility model is as follows:

[0024] like Figures 1-4 As shown, a device for testing the tensile strength of polyester filament nonwoven fabric includes a frame 1. A rotating shaft 5 and a rotating shaft 6 are rotatably connected to the inner wall of the frame 1. Rollers 7 and 8 are fixedly connected to the surfaces of rotating shafts 5 and 6, respectively. The surfaces of rollers 7 and 8 are made of rubber to increase friction. A snap-fit ​​mechanism is provided on the surfaces of rollers 7 and 8. The same fabric 9 is attached to the surfaces of rollers 7 and 8 via the snap-fit ​​mechanism. Two grooves 10 are opened on one side of the frame 1. A slider 11 is slidably connected to the inner wall of each groove 10. The two grooves 10 are symmetrically arranged. The cooperation of the slot 10 and the slider 11 can limit the movement of rack 12 and rack 2 13. Rack 12 and rack 2 13 are fixedly connected to one side of the two sliders 11 respectively. Gear 3 16 is rotatably connected to one side of the frame 1 via a round shaft. One end of rotating shaft 1 5 and rotating shaft 2 6 both pass through one side of the frame 1 and are fixedly connected to gear 14 and gear 2 15 respectively. Gear 14 and gear 2 15 rotate in the same direction. Rack 12 meshes with gear 14 and gear 3 16 respectively. Rack 2 13 meshes with gear 2 15 and gear 3 16 respectively. A motor 17 is fixedly installed on one side of gear 3 16.

[0025] like Figure 3 and Figure 4 As shown, in one embodiment, the snap-fit ​​mechanism includes arc-shaped grooves 20 formed on the surfaces of roller 7 and roller 8. The surface of the arc-shaped grooves 20 is made of a hard material. Multiple springs 22 are fixedly connected to the inner walls of the two arc-shaped grooves 20. The multiple springs 22 are respectively fixedly connected to two clamping plates 21. The surfaces of the two clamping plates 21 are slidably connected to the inner walls of the corresponding two arc-shaped grooves 20. Multiple steel needles 23 are fixedly connected to one side of each of the two clamping plates 21.

[0026] like Figure 3As shown, in one embodiment, the inner wall of the frame 1 is fixedly connected with a first limiting rod 18 and a second limiting rod 19, respectively. The fabric 9 is overlapped on the surface of the first limiting rod 18 and the second limiting rod 19. The first limiting rod 18 and the second limiting rod 19 can be used to abut the fabric 9, so that the pulled part is in a vertical state, thereby improving the test effect.

[0027] A fan 2 is fixedly connected to the inner bottom wall of the frame 1. Two blocks are fixedly connected to the inner wall of the frame 1. The same collection net box 3 is slidably connected to the upper surface of the two blocks. The collection net box 3 is equipped with a mesh inside, which can stick the lint to prevent the lint from flying when the fan 2 stops and the negative pressure disappears. At the same time, it can protect the fan 2 and prevent the lint from entering the fan 2.

[0028] The inner wall of the frame 1 is fixedly connected with a through groove plate 4, and the upper surface of the collection box 3 is in contact with the lower surface of the through groove plate 4.

[0029] The specific working method is as follows: During use, the two ends of the fabric 9 are respectively threaded onto the surfaces of roller 7 and roller 8. Using the clamping plates 21, springs 22, and steel needles 23, when fixing the fabric 9, firstly, the clamping plates 21 are pulled, and under the action of the springs 22, the clamping plates 21 shift, creating a gap between the clamping plates 21 and the arc-shaped groove 20 for the fabric 9 to pass through. Then, after the fabric 9 is passed through, the clamping plates 21 are released. Under the reset of the springs 22, the clamping plates 21 clamp the fabric 9. During the reset process of the clamping plates 21, the steel needles 23 can be driven to pass through the fabric 9, further fixing the fabric 9. The clamping plates 21 on roller 7 and roller 8 are in opposite positions, but the method of fixing the fabric 9 is the same. After fixing, the motor is started. Motor 17 drives the rotation of gear 16, which in turn drives racks 12 and 13 to slide inside the slide groove 10. The sliding of racks 12 and 13 drives gears 14 and 15 to rotate, which in turn drives rollers 7 and 8 to rotate, thus tightening the fabric 9. This allows for testing the breaking strength of the fabric 9 during the tightening process, improving the stability and effectiveness of the test. The fan 2 can also absorb the lint generated during the pulling process. The collection box 3 can centrally process the lint, and the mesh in the collection box 3 can adhere the lint, preventing it from being blown away and improving the collection effect.

[0030] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A device for testing the tensile strength of polyester filament nonwoven fabric, comprising a frame (1), characterized in that: The inner wall of the frame (1) is rotatably connected to a first rotating shaft (5) and a second rotating shaft (6). Roller first (7) and roller second (8) are fixedly connected to the surfaces of the first rotating shaft (5) and the second rotating shaft (6), respectively. A snap-fit ​​mechanism is provided on the surfaces of both roller first (7) and roller second (8). The same fabric (9) is provided on the surfaces of both roller first (7) and roller second (8) through the snap-fit ​​mechanism. Two sliding grooves (10) are opened on one side of the frame (1). Sliding sliders (11) are slidably connected to the inner walls of both sliding grooves (10). The two sliding sliders (11)... One side of the frame (1) is fixedly connected to rack one (12) and rack two (13). One side of the frame (1) is rotatably connected to gear three (16) via a round shaft. One end of shaft one (5) and shaft two (6) both pass through one side of the frame (1) and are fixedly connected to gear one (14) and gear two (15) respectively. Rack one (12) meshes with gear one (14) and gear three (16) respectively. Rack two (13) meshes with gear two (15) and gear three (16) respectively. A motor (17) is fixedly installed on one side of gear three (16).

2. The device for testing the tensile strength of polyester filament nonwoven fabric according to claim 1, characterized in that: The snap-fit ​​mechanism includes arc-shaped grooves (20) formed on the surfaces of roller 1 (7) and roller 2 (8). Multiple springs (22) are fixedly connected to the inner walls of the two arc-shaped grooves (20). Two clamping plates (21) are fixedly connected to the multiple springs (22). The surfaces of the two clamping plates (21) are slidably connected to the inner walls of the corresponding two arc-shaped grooves (20). Multiple steel needles (23) are fixedly connected to one side of each of the two clamping plates (21).

3. The device for testing the tensile strength of polyester filament nonwoven fabric according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly connected to a first limiting rod (18) and a second limiting rod (19), and the fabric (9) overlaps the surfaces of the first limiting rod (18) and the second limiting rod (19).

4. The device for testing the tensile strength of polyester filament nonwoven fabric according to claim 3, characterized in that: A fan (2) is fixedly connected to the inner bottom wall of the frame (1), and two blocks are fixedly connected to the inner wall of the frame (1). The upper surfaces of the two blocks are slidably connected to the same collection net box (3).

5. The device for testing the tensile strength of polyester filament nonwoven fabric according to claim 4, characterized in that: The inner wall of the frame (1) is fixedly connected with a through groove plate (4), and the upper surface of the collection net box (3) is in contact with the lower surface of the through groove plate (4).

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