Polypropylene fiber yarn strength detection device

Abstract

The utility model relates to the field of fiber strength detection, and discloses a polypropylene fiber yarn strength detection device which comprises a bottom plate, the top end of the bottom plate is fixedly connected with a mounting frame, a detection mechanism is arranged on the inner side of the mounting frame and above the bottom plate, and the detection mechanism comprises a rotating rod. The left end of the rotating rod is rotatably connected with the inner wall of the mounting frame, a control groove is formed in the outer wall of the rotating rod, a sliding block is slidably connected to the inner wall of the mounting frame, a control ball is fixedly connected to the inner wall of the sliding block, a lower fixing plate is fixedly connected to the front end of the sliding block, and the detection mechanism further comprises a sliding plate. According to the utility model, through the arrangement of the detection mechanism, it is ensured that a plurality of polypropylene fibers with different diameters can be placed into different placing grooves at the same time and are stretched at the same time, and the stretching distances are ensured to be consistent, so that the effects of detecting the polypropylene fibers with different diameters at the same time and ensuring the detection accuracy are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fiber strength detection, especially to a polypropylene fiber strength detection device. BACKGROUND

[0002] Polypropylene fiber, also known as polypropylene fiber, is a synthetic fiber made from the byproduct of petroleum refining, propylene.

[0003] At present, before polypropylene fiber is put into use, its strength needs to be tested to ensure that the diameter of the polypropylene fiber put into use can reach the minimum within the required strength. After searching, the patent for utility model with publication number CN116642768B discloses a strength detection device for polypropylene fiber manufacturing. The detection device includes a bottom plate, a fixed plate fixedly connected to the upper end of the bottom plate, and a detection mechanism arranged on the upper end of the fixed plate. The detection mechanism includes a plurality of rotating blocks arranged on the fixed plate, which are stacked upwards in turn. A hinge is arranged at the connection between the adjacent two rotating blocks to realize the sequential hinging of the rotating blocks. Cavities are formed at the upper and lower ends of each rotating block. The above-mentioned application file can stretch the fiber through the detection mechanism and the rotating blocks, that is, the device can simultaneously detect multiple groups of fiber. Compared with simultaneously stretching multiple fibers, the fibers can be stretched in sections. The thicker fibers can be placed at the bottom, and the thinner fibers can be placed at the top. The fibers are detected in sections according to their thickness, so that the strength of the fibers can be fully understood, and the accuracy of the detection results can be improved.

[0004] Although the above-mentioned application file can simultaneously detect multiple sections of polypropylene fibers with different thicknesses, the connection between the adjacent rotating blocks is hinged in actual use. Therefore, the rotation angle of the adjacent rotating blocks is prone to deviation, that is, it is inconvenient to ensure that the rotation angles of the adjacent rotating blocks are consistent, which may cause deviation in the detection results and affect the final detection results. Therefore, a polypropylene fiber strength detection device is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a polypropylene fiber strength detection device, which aims to improve the problem of inconvenient control of moving distance in the detection process in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a polypropylene fiber strength testing device, comprising a base plate, a mounting frame fixedly connected to the top of the base plate, a testing mechanism jointly provided on the inner side of the mounting frame and the top of the base plate, the testing mechanism comprising a rotating rod, the left end of the rotating rod being rotatably connected to the inner wall of the mounting frame, a control groove being provided on the outer wall of the rotating rod, a slider being slidably connected to the inner wall of the mounting frame, a control ball being fixedly connected to the inner wall of the slider, a lower fixing plate being fixedly connected to the front end of the slider, the testing mechanism further comprising a sliding plate, an upper fixing plate being slidably connected to the lower end of the sliding plate, a fixing component jointly provided on the lower end of the upper fixing plate and the interior of the lower fixing plate, a cylinder being fixedly connected to the top of the mounting frame, the output end of the cylinder penetrating the inner wall of the mounting frame and being fixedly connected to the top of the sliding plate.

[0007] As a further description of the above technical solution: a control rod is fixedly connected to the bottom end of the upper fixing plate, and the outer wall of the control rod is slidably connected to the inner wall of the lower fixing plate.

[0008] As a further description of the above technical solution: the fixing component includes a pressure chamber, the inner wall of the pressure chamber is piston-connected to a compression block, the bottom end of the compression block is elastically connected to the inner wall of the pressure chamber by a spring, the inner wall of the pressure chamber is piston-connected to a moving block, and an airbag is fixedly connected to one end of the moving block near the middle of the lower fixing plate.

[0009] As a further description of the above technical solution: the lower fixing plate has placement slots on its left and right sides, and the bottom end of the upper fixing plate is fixedly connected to a stop block.

[0010] As a further description of the above technical solution: the right end of the rotating rod penetrates the inner wall of the mounting frame, the right end of the mounting frame is provided with a scale line, and the right end of the rotating rod is provided with a directional arrow.

[0011] As a further description of the above technical solution: the upper part of the placement groove is an isosceles trapezoid, the lower part of the placement groove is a rectangle, and the edges of the placement groove are all rounded.

[0012] As a further description of the above technical solution: the control groove is spiral in shape, and the number of control grooves is set to multiple, with the multiple control grooves being equidistantly distributed.

[0013] As a further description of the above technical solution:

[0014] The moving block and the cuboid area of ​​the placement slot are at the same height, and the airbag is made of rubber.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting up a rotating rod, a control groove, a slider, a control ball, a lower fixed plate, a sliding plate, an upper fixed plate, a cylinder, a placement groove, a fixing component, and a control rod, it is ensured that multiple polypropylene fiber filaments of different diameters can be placed into different placement grooves at the same time and stretched simultaneously, while ensuring that the stretching distance is consistent, thereby achieving the effect of simultaneously detecting multiple polypropylene fiber filaments of different diameters and ensuring detection accuracy.

[0017] 2. In this utility model, the arrangement of the air chamber, the extrusion block, the spring, the moving block, the air bag, and the stop block ensures that the polypropylene fiber can be easily placed into the placement groove. Furthermore, the combined action of the stop block, the moving groove, and the air bag ensures that the polypropylene fiber is fixed in a protected state, guaranteeing that the polypropylene fiber is not easily damaged by pressure during the testing process, which could lead to errors in the test results. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the overall structure of this utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 In this utility model Figure 2 Enlarged schematic diagram of the three-dimensional structure of part A in the middle;

[0021] Figure 4 This is a three-dimensional cross-sectional view of a portion of the detection mechanism in this utility model;

[0022] Figure 5 In this utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of part B.

[0023] Legend:

[0024] 1. Base plate; 2. Mounting bracket; 3. Detection mechanism; 31. Rotating rod; 32. Control groove; 33. Slider; 34. Control ball; 35. Lower fixed plate; 36. Sliding plate; 37. Upper fixed plate; 38. Cylinder; 39. Fixing assembly; 391. Air chamber; 392. Extrusion block; 393. Spring; 394. Moving block; 395. Airbag; 310. Placement groove; 311. Stop block; 312. Control rod. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 and Figure 2 One embodiment of this utility model is a polypropylene fiber strength testing device, which includes a base plate 1, the upper surface of the base plate 1 is a horizontal plane, and a mounting frame 2 is fixedly connected to the top of the base plate 1. The mounting frame 2 is L-shaped.

[0027] Reference Figure 2 , Figure 4 and Figure 5 A detection mechanism 3 is provided on the inner side of the mounting frame 2 and above the base plate 1. The detection mechanism 3 includes a rotating rod 31, which is cylindrical in shape. The left end of the rotating rod 31 is rotatably connected to the inner wall of the mounting frame 2, and the right end of the rotating rod 31 penetrates the inner wall of the mounting frame 2. The right end of the mounting frame 2 is provided with scale lines, and the right end of the rotating rod 31 is provided with a directional arrow. The scale lines and directional arrows ensure that the operator can rotate the rotating rod 31 at different angles according to the needs of the operator, so as to achieve the effect of testing different required strengths. The outer wall of the rotating rod 31 is provided with a control groove 32, which is spiral in shape. Multiple control grooves 32 are provided, and the multiple control grooves 32 are evenly distributed.

[0028] Reference Figure 2 , Figure 4 and Figure 5 The inner wall of the mounting bracket 2 is slidably connected to a slider 33, and the inner wall of the slider 33 is fixedly connected to a control ball 34. The control ball 34 is set inside the control groove 32, and the diameter of the control ball 34 matches the width of the control groove 32. Through the shape and equidistant setting of the control groove 32, it is ensured that no matter how much the rotating rod 31 rotates, multiple control balls 34 can drive the slider 33 to move so that the distance between each pair of sliders 33 is consistent. The front end of the slider 33 is fixedly connected to a lower fixing plate 35. The shape of the lower fixing plate 35 is a cuboid. Placement grooves 310 are opened on the left and right sides of the lower fixing plate 35. The upper shape of the placement groove 310 is an isosceles trapezoid, and the lower shape of the placement groove 310 is a rectangle. Through the shape setting of the placement groove 310, it is ensured that the polypropylene fiber can be easily placed into the interior of the placement groove 310, and the edges of the placement groove 310 are all rounded.

[0029] Reference Figure 2 ,Figure 4 and Figure 5 The detection mechanism 3 also includes a sliding plate 36, with an upper fixed plate 37 slidably connected to the lower end of the sliding plate 36. The upper fixed plate 37 is cuboid in shape, and the width of the upper fixed plate 37 is the same as that of the lower fixed plate 35. A stop block 311 is fixedly connected to the bottom end of the upper fixed plate 37, and the shape of the stop block 311 is the same as the upper shape of the placement groove 310.

[0030] Reference Figure 1 - Figure 3 The lower end of the upper fixed plate 37 and the interior of the lower fixed plate 35 are jointly provided with a fixing component 39. The fixing component 39 includes a pressure chamber 391, which is L-shaped. A compression block 392 is piston-connected to the inner wall of the pressure chamber 391. The compression block 392 moves vertically. The bottom end of the compression block 392 is elastically connected to the inner wall of the pressure chamber 391 by a spring 393. One end of the spring 393 is fixedly connected to the bottom end of the compression block 392, and the other end of the spring 393 is fixedly connected to the inner wall of the pressure chamber 391. The inner wall of the pressure chamber 391 is piston-connected with... The movable block 394 moves in the front-to-back direction. The movable block 394 is at the same height as the cuboid area of ​​the placement groove 310. This height consistency ensures that when the movable block 394 moves, it can just fill the cuboid area of ​​the placement groove 310. An airbag 395 is fixedly connected to one end of the movable block 394 near the middle of the lower fixed plate 35. The airbag 395 ensures that when the movable block 394 clamps the polypropylene fiber, it can be protected by the airbag 395, ensuring that the polypropylene fiber will not be damaged due to compression. The airbag 395 is made of rubber.

[0031] Reference Figure 2 and Figure 4 A cylinder 38 is fixedly connected to the top of the mounting bracket 2. The output end of the cylinder 38 passes through the inner wall of the mounting bracket 2 and is fixedly connected to the top of the sliding plate 36. A control rod 312 is fixedly connected to the bottom of the upper fixed plate 37. The outer wall of the control rod 312 is slidably connected to the inner wall of the lower fixed plate 35. By setting the control rod 312, it is ensured that the upper fixed plate 37 and the lower fixed plate 35 can move synchronously in the left and right directions.

[0032] Working principle: When in use, the operator first places the polypropylene fiber to be tested inside the placement groove 310, so that the left and right ends of the polypropylene fiber fall into the two adjacent placement grooves 310 inside the two adjacent lower fixing plates 35 respectively.

[0033] Subsequently, the staff started the cylinder 38, which caused the output shaft of the cylinder 38 to drive the sliding plate 36 to move downward, which in turn caused the sliding plate 36 to drive the upper fixed plate 37 to move downward, which in turn caused the upper fixed plate 37 to drive the stop block 311, allowing the stop block 311 to enter the upper part of the placement slot 310.

[0034] At the same time, the bottom end of the upper fixed plate 37 contacts the top end of the lower fixed plate 35, and the upper fixed plate 37 can push the extrusion block 392, thereby increasing the area inside the air pressure chamber 391 after the extrusion block 392 moves downward, thereby increasing the air pressure inside the air pressure chamber 391, thereby causing the moving block 394 to move towards the end closer to the middle of the placement groove 310 under the action of air pressure.

[0035] When the moving block 394 moves, it drives the airbag 395 to move together, so that the airbag 395 squeezes the polypropylene fiber under the pushing action of the moving block 394, thereby achieving the effect of fixing the polypropylene fiber.

[0036] At this time, the operator rotates the rotating rod 31, thereby increasing the distance between the control groove 32 and the control ball 34 at the same horizontal position. This causes the control ball 34 to move under the push of the inner wall of the control groove 32, and drives the slider 33 and the lower fixed plate 35 to move.

[0037] Since the control rod 312 is slidably connected to the lower fixed plate 35, the lower fixed plate 35 moves synchronously with the upper fixed plate 37 during the movement of the lower fixed plate 35. Therefore, the fixing effect on the polypropylene fiber remains unchanged during the testing process.

[0038] After the movement is completed, the staff can determine whether the strength of the polypropylene fiber filaments meets the required requirements by checking whether the filaments break after being stretched to a specified length.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polypropylene fiber strength testing device, comprising a base plate (1), characterized in that: A mounting bracket (2) is fixedly connected to the top of the base plate (1). A detection mechanism (3) is provided on the inner side of the mounting bracket (2) and the top of the base plate (1). The detection mechanism (3) includes a rotating rod (31). The left end of the rotating rod (31) is rotatably connected to the inner wall of the mounting bracket (2). A control groove (32) is provided on the outer wall of the rotating rod (31). A slider (33) is slidably connected to the inner wall of the mounting bracket (2). A control ball (34) is fixedly connected to the inner wall of the slider (33). The front end of the slider (33) is fixedly connected to a lower fixing plate (35). The detection mechanism (3) also includes a sliding plate (36). The lower end of the sliding plate (36) is slidably connected to an upper fixing plate (37). The lower end of the upper fixing plate (37) and the interior of the lower fixing plate (35) are jointly provided with a fixing component (39). The top end of the mounting frame (2) is fixedly connected to a cylinder (38). The output end of the cylinder (38) penetrates the inner wall of the mounting frame (2) and is fixedly connected to the top end of the sliding plate (36).

2. The polypropylene fiber strength testing device according to claim 1, characterized in that: A control rod (312) is fixedly connected to the bottom end of the upper fixing plate (37), and the outer wall of the control rod (312) is slidably connected to the inner wall of the lower fixing plate (35).

3. The polypropylene fiber strength testing device according to claim 1, characterized in that: The fixing component (39) includes a pressure chamber (391), the inner wall of which is piston-connected to a compression block (392). The bottom end of the compression block (392) is elastically connected to the inner wall of the pressure chamber (391) by a spring (393). The inner wall of the pressure chamber (391) is piston-connected to a moving block (394), and an airbag (395) is fixedly connected to one end of the moving block (394) near the middle of the lower fixing plate (35).

4. The polypropylene fiber strength testing device according to claim 1, characterized in that: The lower fixing plate (35) has placement slots (310) on its left and right sides, and the bottom end of the upper fixing plate (37) is fixedly connected to a stop block (311).

5. The polypropylene fiber strength testing device according to claim 1, characterized in that: The right end of the rotating rod (31) penetrates the inner wall of the mounting bracket (2), the right end of the mounting bracket (2) is provided with a scale line, and the right end of the rotating rod (31) is provided with a directional arrow.

6. The polypropylene fiber strength testing device according to claim 4, characterized in that: The upper part of the placement groove (310) is an isosceles trapezoid, the lower part of the placement groove (310) is a rectangle, and the edges of the placement groove (310) are all rounded.

7. The polypropylene fiber strength testing device according to claim 1, characterized in that: The control slot (32) is spiral in shape, and the number of control slots (32) is set to multiple, with the multiple control slots (32) being equidistantly distributed.

8. The polypropylene fiber strength testing device according to claim 3, characterized in that: The movable block (394) is at the same height as the cuboid area of ​​the placement slot (310), and the airbag (395) is made of rubber.

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