Plastic woven cloth strength testing device

Abstract

The utility model discloses a plastic woven cloth strength testing device which comprises a support and a woven cloth body, the support is provided with a double-thread screw through a lower motor, the double-thread screw is sleeved with two fixing frames used for clamping the woven cloth body in a threaded mode, the support is provided with a movable rod through a lifting opening, and the movable rod is connected with the woven cloth body through the lifting opening. A movable rod is arranged on the support, a lifting block is arranged on the movable rod, a fixed rod is arranged on the support, a sliding sleeve connected with the movable rod is arranged on the fixed rod in a sliding and sleeving mode through a reset mechanism, a movable screw rod is arranged on the support through a rotating opening, a middle motor connected with the movable screw rod is arranged on the support, and a nut is arranged on the movable screw rod in a threaded and sleeving mode. According to the utility model, the motor drives the plurality of incomplete gears to rotate through the transmission shaft, and the incomplete gears with different numbers of teeth are different in meshing degree with the rack on the movable rod, so that the movement speed and force of the movable rod can be adjusted, and the device is suitable for various strength tests.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a plastic woven cloth strength testing device. Background Art

[0002] Plastic woven fabric is a cloth-like material made primarily from polypropylene and polyethylene resins, extruded and stretched into flat yarns, which are then woven. Strength testing plays a crucial role in the development of plastic woven fabric. Strength testing of woven fabrics with different materials, processes, and structures allows for performance comparisons, providing clear guidance for R&D personnel on product improvement.

[0003] However, most strength testing devices in the prior art have obvious defects. Among them, the inability to adjust the movement speed and strength of the movable rod is a key problem. This defect brings many difficulties to different strength tests, which is specifically manifested in the inability to conduct accurate targeted tests on woven fabric bodies of different materials and specifications. Due to the lack of speed and strength adjustment functions, the versatility of the testing device is greatly limited. Different types of plastic woven fabrics often require different test parameters, and the existing technology cannot meet this demand, resulting in different testing equipment having to be equipped for different woven fabrics, which not only increases costs, but also takes up more space resources. In order to solve the above problems, a new type of plastic woven fabric strength testing device is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a plastic woven cloth strength testing device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A plastic woven cloth strength testing device comprises a bracket and a woven cloth body, a double-headed screw is provided on the bracket through a lower motor, a threaded sleeve on the double-headed screw is provided with two fixing frames for clamping the woven cloth body, a movable rod is provided on the bracket through a lifting port, a lifting block is provided on the movable rod, a fixed rod is provided on the bracket, a sliding sleeve connected to the movable rod through a reset mechanism sliding sleeve is provided on the fixed rod, a movable screw is provided on the bracket through a rotating port, a middle motor connected to the movable screw is provided on the bracket, a nut is provided on the threaded sleeve on the movable screw, a connecting frame is provided on the nut through an insertion mechanism, an upper motor is installed on the connecting frame, and the upper motor cooperates with the movable rod through a meshing mechanism.

[0007] Preferably, the reset mechanism includes a spring sleeved on the outside of the fixing rod, and two ends of the spring are elastically connected to the outer wall of the sliding sleeve and the outer wall of the bracket respectively.

[0008] Preferably, the plug-in mechanism includes an insert block provided on the nut, and the connecting frame is provided with a slot corresponding to the insert block.

[0009] Preferably, the engagement mechanism comprises a transmission shaft mounted on the output shaft of the upper motor, a plurality of incomplete gears are mounted on the transmission shaft, and a rack matched with the incomplete gears is provided on the movable rod.

[0010] Preferably, the plurality of incomplete gears are distributed at equal intervals, and the numbers of the incomplete gears are different.

[0011] Preferably, the bracket is provided with a vertical rod parallel to the double-headed screw, and the vertical rod slides through the two fixing frames.

[0012] Preferably, the bracket is provided with a cross bar which is located in the rotating opening and parallel to the moving screw, and the cross bar slides through the nut.

[0013] Preferably, a stabilizing rod is provided on the movable rod, and a stabilizing opening corresponding to the stabilizing rod is provided on the lifting opening.

[0014] Beneficial effects of the utility model:

[0015] 1. The double-headed screw is driven by the lower motor to rotate, so that the two fixing frames firmly clamp the woven fabric body. At the same time, the vertical rods are set in parallel and slide through the fixing frames, which enhances the clamping stability and ensures accurate measurement of strength.

[0016] 2. The upper motor drives multiple incomplete gears to rotate through the transmission shaft. The incomplete gears with different numbers of teeth have different degrees of engagement with the rack on the movable rod, which can adjust the movement speed and strength of the movable rod to adapt to various strength tests.

[0017] 3. The plug-in mechanism makes it easy and quick to connect the nut and the connecting frame. The multi-component disassembly can be completed by lifting the motor, which is convenient for maintenance, replacement or storage of related components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a plastic woven fabric strength testing device proposed in the utility model;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the structure at A;

[0020] Figure 3 for Figure 1 A magnified schematic diagram of the structure at B;

[0021] Figure 4 for Figure 1 A magnified schematic diagram of the structure at C;

[0022] Figure 5 This is a schematic diagram of the structure of the insert on the nut.

[0023] In the figure: 1 bracket, 2 woven cloth body, 3 fixed frame, 4 movable rod, 5 lifting block, 6 stabilizing rod, 7 double-headed screw, 8 lower motor, 9 lifting port, 10 sliding sleeve, 11 fixed rod, 12 spring, 13 rotating port, 14 moving screw, 15 transmission shaft, 16 incomplete gear, 17 upper motor, 18 nut, 19 connecting frame, 20 middle motor, 21 plug block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-5

[0026] This plastic woven fabric strength testing device primarily consists of a bracket 1, a woven fabric body 2, and several key components. The bracket 1 serves as a stable foundation for the entire device, providing a reliable platform for the installation and operation of various components. As shown in the figure, the bracket 1 is a special-shaped structure that can be manufactured and assembled using existing equipment components.

[0027] The woven fabric body 2 is the test object, and its strength properties are precisely measured using this device. A lower motor 8 drives a double-threaded screw 7, which is threaded onto two fixing brackets 3, which securely hold the woven fabric body 2. During the test, the two fixing brackets 3 ensure that the woven fabric body 2 remains stable, allowing for accurate strength measurements.

[0028] The vertical rod is arranged in parallel with the double-headed screw 7 and slides through the two fixing frames 3, further enhancing the stability of the fixing frames 3 and preventing shaking or deviation during the clamping and testing process.

[0029] The movable rod 4 is mounted on the bracket 1 through a lifting opening 9. The lifting block 5 at its upper end plays a key role in the testing process. The movable rod 4 is equipped with a stabilizing rod 6, and the lifting opening 9 is equipped with a stabilizing opening corresponding to the stabilizing rod 6. The stabilizing rod 6 and the stabilizing opening ensure the stability of the movable rod 4 during the lifting process.

[0030] The fixed rod 11 is connected to the movable rod 4 by a sliding sleeve 10 slidably mounted on the reset mechanism. When the movable rod 4 moves, the sliding sleeve 10 slides synchronously on the fixed rod 11. The spring 12 in the reset mechanism is mounted on the outside of the fixed rod 11, and the two ends of the spring 12 are elastically connected to the outer wall of the sliding sleeve 10 and the outer wall of the bracket 1 respectively.

[0031] During the test, when the movable rod 4 rises, the sliding sleeve 10 rises along with the movable rod 4 on the fixed rod 11, and the spring 12 is stretched. When the movable rod 4 loses the external force, the spring 12 resets and drives the sliding sleeve 10 to quickly descend, and the impact test can be performed.

[0032] On the other side of the bracket 1 , a moving screw 14 is provided on the bracket 1 through a rotating opening 13 , and a middle motor 20 is connected to the moving screw 14 to provide power thereto.

[0033] The nut 18, threadedly mounted on the movable screw 14, is connected to the connecting frame 19 via an interlocking mechanism. The interlocking mechanism includes an insert 21 mounted on the nut 18, and a slot corresponding to the insert 21 is provided on the connecting frame 19. This interlocking mechanism facilitates quick and easy connection between the nut 18 and the connecting frame 19, and also enables quick disassembly of the two components: simply lifting the upper motor 17 allows for complete disassembly of multiple components.

[0034] The upper motor 17 installed on the connecting frame 19 cooperates with the movable rod 4 through the engagement mechanism to achieve accurate driving and control of the movable rod 4.

[0035] The meshing mechanism includes a transmission shaft 15 mounted on the output shaft of the upper motor 17, with multiple incomplete gears 16 mounted on the transmission shaft 15. A rack is provided on the movable rod 4 to engage with the incomplete gears 16. The multiple incomplete gears 16 are evenly spaced, and the number of teeth on the incomplete gears 16 decreases from the area closest to the movable rod 4 to the area closest to the middle motor 20. This design allows the transmission shaft 15 to rotate the incomplete gears 16 when the upper motor 17 is started during testing. Incomplete gears 16 with different numbers of teeth mesh with the rack to varying degrees, allowing for precise adjustment of the speed and force of the movable rod 4.

[0036] Bracket 1 is equipped with a crossbar positioned within rotation opening 13 and parallel to movable screw 14. The crossbar slides through nut 18. This crossbar serves as a guide, ensuring stable and accurate movement of nut 18 along movable screw 14. During testing, as nut 18 moves along movable screw 14, the crossbar restricts its rotation, confining it to the axis of the screw, thus ensuring the accuracy and reliability of the testing device.

[0037] When the present invention is used, the woven fabric body 2 is placed between two fixed frames 3 as a test object. The two fixed frames 3 are adjusted close together by the double-headed screw 7 to achieve clamping and fixation. Then, the upper motor 17 is started to drive the transmission shaft 15 to rotate, thereby driving the incomplete gear 16 to rotate. The incomplete gear 16 corresponding to the rack on the movable rod 4 can drive the movable rod 4 to rise by virtue of the rack. When the incomplete gear 16 loses engagement with the rack, the movable rod 4 can drive the lifting block 5 downward under the action of the spring 12 and gravity, impacting the woven fabric body 2, thereby testing its strength.

[0038] Because the multiple incomplete gears 16 are evenly spaced and have decreasing numbers of teeth from the beginning near the movable rod 4 to the end near the middle motor 20, the different numbers of teeth on the incomplete gears 16 mesh with the rack on the movable rod 4 to varying degrees, thereby adjusting the speed and strength of the movable rod 4. This allows for various strength tests, and the incomplete gears 16 can be replaced by rotating the movable screw 14. After the movable screw 14 is activated by the middle motor 20, the nut 18, via the coupling bracket 19, drives the upper motor 17 and the transmission shaft 15 and other components to move, thereby completing the movement and replacement of the incomplete gears 16.

[0039] The upper motor 17 can be directly lifted up to separate it from the transmission shaft 15, the incomplete gear 16, the connecting frame 19 and other components and the nut 18, thereby completing the disassembly of the above components, making it easier to maintain, replace or store them.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic woven fabric strength testing device, comprising a bracket (1) and a woven fabric body (2), characterized in that: The bracket (1) is provided with a double-headed screw (7) through a lower motor (8), and two fixing frames (3) for clamping the woven cloth body (2) are provided on the threaded sleeve of the double-headed screw (7), and a movable rod (4) is provided on the bracket (1) through a lifting port (9), and a lifting block (5) is provided on the movable rod (4). The bracket (1) is provided with a fixed rod (11), and a sliding sleeve (10) connected to the movable rod (4) is provided on the fixed rod (11) through a reset mechanism sliding sleeve, and a movable screw (14) is provided on the bracket (1) through a rotating port (13). The bracket (1) is provided with a middle motor (20) connected to the movable screw (14), and a nut (18) is provided on the threaded sleeve of the movable screw (14), and a connecting frame (19) is provided on the nut (18) through an insertion mechanism, and an upper motor (17) is installed on the connecting frame (19), and the upper motor (17) cooperates with the movable rod (4) through a meshing mechanism.

2. A plastic woven fabric strength testing device according to claim 1, characterized in that: The reset mechanism comprises a spring (12) sleeved on the outside of the fixed rod (11), and two ends of the spring (12) are elastically connected to the outer wall of the sliding sleeve (10) and the outer wall of the bracket (1) respectively.

3. A plastic woven fabric strength testing device according to claim 2, characterized in that: The plug-in mechanism comprises an inserting block (21) arranged on a nut (18), and a slot corresponding to the inserting block (21) is provided on the connecting frame (19).

4. A plastic woven fabric strength testing device according to claim 3, characterized in that: The meshing mechanism comprises a transmission shaft (15) mounted on the output shaft of an upper motor (17), a plurality of incomplete gears (16) being mounted on the transmission shaft (15), and a rack matched with the incomplete gears (16) being provided on the movable rod (4).

5. A plastic woven fabric strength testing device according to claim 4, characterized in that: The plurality of incomplete gears (16) are distributed at equal intervals, and the numbers of the incomplete gears (16) are different.

6. A plastic woven fabric strength testing device according to claim 5, characterized in that: The bracket (1) is provided with a vertical rod parallel to the double-headed screw (7), and the vertical rod slides through the two fixing frames (3).

7. A plastic woven fabric strength testing device according to claim 6, characterized in that: The bracket (1) is provided with a crossbar located in the rotating opening (13) and parallel to the moving screw (14), and the crossbar slides through the nut (18).

8. A plastic woven fabric strength testing device according to claim 7, characterized in that: The movable rod (4) is provided with a stabilizing rod (6), and the lifting opening (9) is provided with a stabilizing opening corresponding to the stabilizing rod (6).

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