Fixing tool for hemp fiber tearing test

Abstract

The utility model discloses a kind of hemp fiber tear test fixed tool, comprising: fixed tool, the fixed tool includes fixed plate, the top of the fixed plate is fixedly connected with work platform, the both sides of work platform top are fixedly connected with protective shell, clamp, the clamp is set in the inboard of protective shell, transmission mechanism, the transmission mechanism includes motor.The utility model provides stable support for overall structure by setting fixed tool, clamp and transmission mechanism, work platform provides operating carrier for test, protective shell can block the splash produced in test fiber fracture, improve operation safety;Motor drive gear disc one in transmission mechanism, cooperate transmission disc, transmission shaft, transmission frame and transmission rod to realize the automation of clamp opening and closing, replace manual operation, improve test efficiency, and transmission synchronism is strong, reduce the test error caused by artificial operation difference, to facilitate user use.

Description

Technical Field

[0001] This utility model relates to the field of bast fiber technology, specifically a fixture for bast fiber tear testing. Background Technology

[0002] Bast fibers are widely used in agriculture, textiles, construction and other fields due to their excellent properties such as high strength, wear resistance and biodegradability. Their tear performance is an important parameter for measuring fiber quality and is directly related to the structural stability and service life of downstream products. Therefore, it is of great significance to conduct accurate tear tests on bast fibers. Reliable fixation of the fiber during the test is the key to ensuring the accuracy of the test results.

[0003] Currently, most fixtures used for bast fiber tear testing employ screw clamping structures, requiring manual operation by the user. This traditional fixture has several drawbacks: regarding clamping effectiveness, manual screw operation relies entirely on the operator's experience and force control, easily leading to uneven clamping force. For bast fiber bundles of varying thickness, excessive looseness can cause fiber slippage during testing, while excessive tightness may cause localized fiber damage, severely affecting the accuracy of tear data. In terms of operational efficiency, manually adjusting the screw requires repeated turning, which is cumbersome and time-consuming, especially in batch testing, significantly reducing testing efficiency. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a fixing fixture for bast fiber tear testing, which has the advantage of being convenient for users and solves the problem that the fixing fixture for bast fiber tear testing is inconvenient for users.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for fixing bast fiber tear testing, comprising: A fixed fixture, comprising a fixed plate, a work platform fixedly connected to the top of the fixed plate, and protective shells fixedly connected to both sides of the top of the work platform; A clamp, wherein the clamp is disposed on the inside of the protective housing; The transmission mechanism includes a motor, which is fixedly connected to the bottom of a fixed plate. The output end of the motor passes through the fixed plate and extends into the interior of the fixed plate, where a first gear disk is fixedly connected. Two gear disks are provided on both sides of the first gear disk. The surfaces of the second gear disks are connected to the first gear disk via a toothed belt. The top of the second gear disk passes through a protective shell and extends into the interior of the protective shell, where a transmission disc is fixedly connected. A transmission shaft is fixedly connected to the outer side of the top of the transmission disc. A transmission frame is fitted onto the surface of the transmission shaft, and a transmission rod is fixedly connected to the inner side of the transmission frame.

[0006] In a preferred embodiment of this utility model, the clamp includes a vertical plate, the inner side of the transmission rod penetrates the protective shell and extends to the outside of the protective shell and is fixedly connected to the vertical plate, a clamping plate is provided on the inner side of the vertical plate, and connecting plates are fixedly connected to the top and bottom of the outer side of the clamping plate, the outer side of the connecting plate penetrates the vertical plate and extends to the interior of the vertical plate, a positioning bolt is provided at the top of the vertical plate, and the bottom of the positioning bolt penetrates the vertical plate and extends to the interior of the connecting plate.

[0007] As a preferred embodiment of this invention, a fixing plate is fixedly connected to the surface of the motor, and the top of the fixing plate is fixedly connected to the bottom of the fixing plate.

[0008] As a preferred embodiment of this utility model, a positioning bearing is fixedly connected to the top of the gear disk, and the top of the outer ring of the positioning bearing is fixedly connected to the top of the inner wall of the fixing plate.

[0009] As a preferred embodiment of this utility model, a positioning hole is provided on the outer side of the upright plate, and the interior of the positioning hole is slidably connected to the surface of the connecting plate.

[0010] As a preferred embodiment of this utility model, the top of the upright plate is provided with a fixing hole, and the interior of the fixing hole is threadedly connected to a positioning bolt.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides stable support for the overall structure by setting fixed tooling, fixtures and transmission mechanisms. The working platform provides an operating carrier for the test, and the protective shell can block the splashes generated by fiber breakage during the test, thus improving the safety of operation. In the transmission mechanism, the motor drives the gear disk, which, together with the transmission disk, transmission shaft, transmission frame and transmission rod, realizes the automatic opening and closing of the fixture, replacing manual operation, improving the test efficiency, and the transmission synchronization is strong, reducing the test error caused by the difference in manual operation, thus making it convenient for users to use.

[0012] 2. In this utility model, the connecting plate is inserted into the positioning hole on the upright plate by means of a clamping plate, and then the positioning bolt is inserted into the fixing hole on the top of the upright plate and the inside of the connecting plate. The connecting plate is fixed by the positioning bolt, and thus the clamping plate is stably installed by means of the connecting plate.

[0013] 3. By setting a fixed plate, this utility model can enhance the stability of motor installation, reduce the impact of motor vibration on the transmission mechanism, ensure smooth rotation of the gear disk, guarantee overall transmission accuracy, and avoid test data deviation caused by motor shaking. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present utility model; Figure 2 This utility model Figure 1 Cross-sectional structural diagram; Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the transmission mechanism; Figure 4 This utility model Figure 1 Three-dimensional structural diagram of the clamp.

[0015] In the diagram: 1. Fixed fixture; 101. Fixed plate; 102. Working platform; 103. Protective shell; 2. Fixture; 21. Vertical plate; 22. Clamping plate; 23. Connecting plate; 24. Positioning bolt; 3. Transmission mechanism; 31. Motor; 32. Gear disk one; 33. Gear disk two; 34. Transmission disk; 35. Transmission shaft; 36. Transmission frame; 37. Transmission rod; 4. Fixed disk; 5. Positioning bearing; 6. Positioning hole; 7. Fixing hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, the present invention provides a fixing fixture for a bast fiber tear test, comprising: The fixed fixture 1 includes a fixed plate 101, a working platform 102 is fixedly connected to the top of the fixed plate 101, and protective shells 103 are fixedly connected to both sides of the top of the working platform 102. Clamp 2 is disposed on the inside of the protective shell 103; The transmission mechanism 3 includes a motor 31, which is fixedly connected to the bottom of the fixed plate 101. The output end of the motor 31 passes through the fixed plate 101 and extends into the interior of the fixed plate 101, where a gear disk 32 is fixedly connected. Gear disks 33 are provided on both sides of the gear disk 32. The surface of the gear disks 33 is connected to the gear disks 32 via a toothed belt. The top of the gear disks 33 passes through the protective shell 103 and extends into the interior of the protective shell 103, where a transmission disk 34 is fixedly connected. A transmission shaft 35 is fixedly connected to the outer side of the top of the transmission disk 34. A transmission frame 36 is fitted on the surface of the transmission shaft 35, and a transmission rod 37 is fixedly connected to the inner side of the transmission frame 36.

[0018] refer to Figure 4The clamp 2 includes a vertical plate 21. The inner side of the transmission rod 37 passes through the protective shell 103 and extends to the outside of the protective shell 103 and is fixedly connected to the vertical plate 21. A clamping plate 22 is provided on the inner side of the vertical plate 21. A connecting plate 23 is fixedly connected to the top and bottom of the outer side of the clamping plate 22. The outer side of the connecting plate 23 passes through the vertical plate 21 and extends into the interior of the vertical plate 21. A positioning bolt 24 is provided at the top of the vertical plate 21. The bottom of the positioning bolt 24 passes through the vertical plate 21 and extends into the interior of the connecting plate 23.

[0019] As a technical optimization of this utility model, the connecting plate 23 is inserted into the positioning hole 6 on the upright plate 21 through the clamping plate 22, and then the positioning bolt 24 is inserted into the fixing hole 7 at the top of the upright plate 21 and the interior of the connecting plate 23. The connecting plate 23 is fixed by the positioning bolt 24, thereby achieving a stable installation of the clamping plate 22 through the connecting plate 23.

[0020] refer to Figure 2 A fixing plate 4 is fixedly connected to the surface of the motor 31, and the top of the fixing plate 4 is fixedly connected to the bottom of the fixing plate 101.

[0021] As a technical optimization of this utility model, by setting the fixed plate 4, the stability of the motor 31 installation can be enhanced, the impact of the vibration of the motor 31 during operation on the transmission mechanism 3 can be reduced, the gear disk 32 can be rotated smoothly, the overall transmission accuracy can be guaranteed, and the deviation of test data caused by the shaking of the motor 31 can be avoided.

[0022] refer to Figure 2 A positioning bearing 5 is fixedly connected to the top of the gear disk 32, and the top of the outer ring of the positioning bearing 5 is fixedly connected to the top of the inner wall of the fixing plate 101.

[0023] As a technical optimization of this utility model, the positioning bearing 5 at the top of the gear disk 32 is connected to the top of the inner wall of the fixing plate 101, which can provide positioning support for the gear disk 32, reduce its radial offset during rotation, reduce frictional loss when the gear disk 32 meshes with the gear disk 33, ensure the stability of the belt drive, improve transmission efficiency, and reduce transmission lag.

[0024] refer to Figure 4 A positioning hole 6 is provided on the outer side of the upright plate 21, and the interior of the positioning hole 6 is slidably connected to the surface of the connecting plate 23.

[0025] As a technical optimization of this utility model, the positioning hole 6 on the outer side of the upright plate 21 is slidably connected to the surface of the connecting plate 23, providing precise guidance for the movement of the connecting plate 23, avoiding tilting or offset of the connecting plate 23 during adjustment, ensuring that the clamping plate 22 always moves in parallel, ensuring uniform clamping force on the hemp fiber, and improving clamping accuracy.

[0026] refer to Figure 4The top of the upright plate 21 has a fixing hole 7, and the inside of the fixing hole 7 is threadedly connected to the positioning bolt 24.

[0027] As a technical optimization of this utility model, the positioning bolt 24 is slidably connected to the fixing hole 7 at the top of the upright plate 21, which can enhance the stability of the installation of the positioning bolt 24, prevent the positioning bolt 24 from loosening due to vibration during the test, ensure the fixing reliability of the clamping plate 22 and the upright plate 21, further ensure the firmness of the fiber clamping, and reduce the risk of fiber slippage during the test.

[0028] The working principle and usage process of this utility model are as follows: When in use, the user first inserts the connecting plate 23 into the positioning hole 6 on the upright plate 21 through the clamping plate 22, and then inserts the positioning bolt 24 into the fixing hole 7 at the top of the upright plate 21 and the interior of the connecting plate 23. The connecting plate 23 is fixed by the positioning bolt 24, and then the clamping plate 22 is stably installed by the connecting plate 23. Subsequently, the drive motor 31 is driven. The motor 31 operates under the stable support of the fixing plate 4. Its output end drives the gear disk 32 to rotate. The positioning bearing 5 ensures the stability of the gear disk 32 when it rotates. Gear disk 32 drives gear disks 33 on both sides to rotate synchronously via a toothed belt. Gear disks 33 drive the top transmission disk 34 to rotate. The transmission disk 34 drives the transmission frame 36 to move away from each other via the transmission shaft 35. The transmission frame 36 then drives the transmission rod 37 to move away from each other. The transmission rod 37 pulls the upright plate 21 to move away from each other synchronously. The upright plate 21, through the positioning bolt 24 and the connecting plate 23, drives the clamping plate 22 to move away from each other, thus adapting to different specifications of hemp fibers. After adaptation, the user places the hemp fiber to be tested between the clamping plates 22 on both sides and then drives the motor 31 in the opposite direction to make gear disk 32 and gear disk 33 rotate in opposite directions. Through the linkage of the transmission disk 34, transmission shaft 35, transmission frame 36 and transmission rod 37, the upright plate 21 and clamping plate 22 move inward. The cooperation between the upright plate 21 and clamping plate 22 clamps the hemp fiber, preventing the clamping plate 22 from loosening during the test. The protective shells 103 on both sides of the work platform 102 can block the flying debris when the fiber breaks, ensuring operational safety. Through the above process, the tooling realizes the automated clamping and fixing of hemp fibers of different specifications, providing a reliable basis for tear testing and ensuring the accuracy of test results.

[0029] In summary, this bast fiber tear test fixture provides stable support for the overall structure through the setting of fixture 1, clamp 2, and transmission mechanism 3. The working platform 102 provides an operating carrier for the test, and the protective shell 103 can block the splashes generated by fiber breakage during the test, improving operational safety. In the transmission mechanism 3, the motor 31 drives the gear disk 32, which, together with the transmission disk 34, transmission shaft 35, transmission frame 36, and transmission rod 37, realizes the automatic opening and closing of the clamp 2, replacing manual operation, improving test efficiency, and has strong transmission synchronization, reducing test errors caused by differences in manual operation, thus making it convenient for users.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for fixing bast fibers during tear testing, characterized in that, include: The fixed fixture (1) includes a fixed plate (101), a working platform (102) is fixedly connected to the top of the fixed plate (101), and protective shells (103) are fixedly connected to both sides of the top of the working platform (102). A clamp (2) is disposed on the inner side of the protective shell (103); The transmission mechanism (3) includes a motor (31), which is fixedly connected to the bottom of the fixed plate (101). The output end of the motor (31) passes through the fixed plate (101) and extends into the interior of the fixed plate (101) where a gear disk (32) is fixedly connected. Gear disks (33) are provided on both sides of the gear disk (32). The surface of the gear disks (33) is connected to the gear disks (32) via a toothed belt. The top of the gear disks (33) passes through the protective shell (103) and extends into the interior of the protective shell (103) where a transmission disk (34) is fixedly connected. A transmission shaft (35) is fixedly connected to the outer side of the top of the transmission disk (34). A transmission frame (36) is sleeved on the surface of the transmission shaft (35). A transmission rod (37) is fixedly connected to the inner side of the transmission frame (36).

2. The fixture for fixing bast fibers during tear testing according to claim 1, characterized in that: The clamp (2) includes a vertical plate (21). The inner side of the transmission rod (37) passes through the protective shell (103) and extends to the outside of the protective shell (103) and is fixedly connected to the vertical plate (21). A clamping plate (22) is provided on the inner side of the vertical plate (21). A connecting plate (23) is fixedly connected to the top and bottom of the outer side of the clamping plate (22). The outer side of the connecting plate (23) passes through the vertical plate (21) and extends to the inside of the vertical plate (21). A positioning bolt (24) is provided on the top of the vertical plate (21). The bottom of the positioning bolt (24) passes through the vertical plate (21) and extends to the inside of the connecting plate (23).

3. The fixture for fixing bast fibers during tear testing according to claim 2, characterized in that: A fixing disk (4) is fixedly connected to the surface of the motor (31), and the top of the fixing disk (4) is fixedly connected to the bottom of the fixing plate (101).

4. The fixture for fixing bast fibers during tear testing according to claim 3, characterized in that: The top of the gear disk (32) is fixedly connected to a positioning bearing (5), and the top of the outer ring of the positioning bearing (5) is fixedly connected to the top of the inner wall of the fixing plate (101).

5. The fixture for fixing bast fibers during tear testing according to claim 4, characterized in that: The outer side of the upright plate (21) is provided with a positioning hole (6), and the interior of the positioning hole (6) is slidably connected to the surface of the connecting plate (23).

6. The fixture for fixing bast fibers during tear testing according to claim 5, characterized in that: The top of the upright plate (21) is provided with a fixing hole (7), and the interior of the fixing hole (7) is threadedly connected to the positioning bolt (24).

Images