A tensile strength detection device for optical fiber cable production

Abstract

The utility model provides a kind of tensile strength detection device for optical fiber cable production, it is related to cable detection technical field, including fixed seat, the inside of fixed seat is provided with tensile movement mechanism, tensile movement mechanism includes guide rod, two guide rods are symmetrically distributed and two ends are respectively with the both sides inner wall of fixed seat fixed connection, the outside of two guide rods is slidably sleeved with moving block, by pull ring, movable rod etc. Component cooperation, can adjust winding rod spacing, adapt different thick and thin cable, reset spring can let winding rod preliminary pre-tightening fixed to cable, avoid slack, second servo electric cylinder, mobile sleeve etc. Move movable frame, first servo electric cylinder drives pressing plate to further fix cable, fixed effect is good, convenient operation, can effectively adapt different specifications cable, not only guarantee cable fixed firm in detection process, improve the accuracy and reliability of tensile strength detection, and shorten the effect of detection preparation time.

Description

Technical Field

[0001] This utility model relates to the field of optical cable testing technology, and in particular to a tensile strength testing device for optical fiber cable production. Background Technology

[0002] Optical fiber cable is a communication cable that uses light as the transmission carrier and optical fiber as the core transmission unit. It is the "nerve center" of modern information networks, widely supporting various information transmission scenarios such as fixed communication, mobile communication, and data center interconnection. It has core advantages such as high transmission rate, strong anti-interference, and long transmission distance. During the production process of optical fiber cable, it is necessary to test its tensile strength. At present, the tensile strength testing equipment for optical fiber cable has poor cable fixation effect during testing. During the test, the cable may loosen or fall off, affecting the test.

[0003] For example, a tensile strength testing device for cable production disclosed in Chinese patent literature (publication number: CN221124106U) uses a servo motor to drive a lead screw to rotate, causing a moving block to move on the lead screw. The moving part on the moving block pulls the cable, and the tensile strength is tested by an installed tensile tester (the above is the prior art). During the cable tensile test, both ends of the cable are wound around the fixed post of the bearing block. After winding, the cylinder extends and pushes the pressure plate downward. The post hole on the pressure plate is fitted onto the fixed post until the pressure plate presses the cable wound around the fixed post tightly. At this point, the test can be carried out. The fixed post can better fix the cable and prevent it from slipping or falling off during the tensile test, which is beneficial to use.

[0004] However, the fixed spacing of the fixing posts is designed to be narrow. When dealing with thicker optical fibers and cables, the narrow spacing makes it difficult to wind and fix the cables. When testing thinner optical fibers and cables, the wide spacing results in insufficient windings and insufficient preload. During tensile testing, the cables are prone to slippage, leading to inaccurate force transmission and affecting the reliability of the test data. Furthermore, the pressure plate above the fixing posts creates significant operational obstacles. Operators must go around the pressure plate or complete the winding of the cables in a confined space, which is not only cumbersome but also prolongs the preparation time for each test. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies. Currently, fixed-spacing fixed posts are less practical for optical cables of different diameters, and the obstruction of the pressure plate makes it difficult to wind the optical cable, thus reducing the efficiency of strength testing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tensile strength testing device for optical fiber and cable production includes a fixed base, and a tensile moving mechanism is provided inside the fixed base.

[0008] The tensioning and moving mechanism includes guide rods. Two guide rods are symmetrically distributed and their two ends are fixedly connected to the inner walls of the two sides of the fixed base. Moving blocks are slidably sleeved on the outside of each guide rod. A servo motor is fixedly installed on one side of the fixed base. A lead screw is fixedly installed on the output shaft of the servo motor through a coupling. One end of the lead screw passes through the interior of the fixed base and is rotatably connected to the inner wall of one side of the fixed base through a bearing. The outside of the lead screw is threadedly connected to the inner wall of the moving block. A tension sensor is fixedly installed on the inner wall of one side of the fixed base.

[0009] The mounting base is equipped with an optical cable fixing mechanism.

[0010] Preferably, the optical cable fixing mechanism includes an L-shaped mounting plate, one side of which is fixedly connected to one side of the tension sensor, and the lower end of the other L-shaped mounting plate is fixedly connected to the upper end of the moving block.

[0011] Preferably, the L-shaped mounting plate has a sliding cavity inside, the inner top wall of the sliding cavity has a rectangular through groove, and the inner wall of the sliding cavity is slidably fitted with sliders arranged in a linear array, one side of which is fixedly connected to one side of the inner wall of the sliding cavity.

[0012] Preferably, a return spring is provided between two adjacent sliders, and a symmetrically distributed winding rod is fixedly connected to the upper end of the slider. The upper ends of the multiple winding rods pass through the rectangular through slot and extend to the top of the L-shaped mounting plate. A movable rod is fixedly connected to one side of another slider.

[0013] Preferably, one end of the movable rod extends through to one side of the L-shaped mounting plate and is fixedly connected to a pull ring. The upper end of the L-shaped mounting plate is fixedly connected to symmetrically distributed linear guide rails, and a movable sleeve is slidably sleeved on the outside of the linear guide rails.

[0014] Preferably, a movable frame is fixedly connected to the upper end of each of the two movable sleeves, and a first servo electric cylinder is fixedly installed on the inner top wall of the movable frame in a symmetrical arrangement. A pressure plate is fixedly connected to one end of the piston rod of each of the two first servo electric cylinders, and an clearance groove is provided at the upper end of the pressure plate.

[0015] Preferably, a second servo electric cylinder is fixedly mounted on the front and back of the L-shaped mounting plate in a symmetrical arrangement. One end of the piston rod of the second servo electric cylinder is fixedly connected to a drive block, and one end of the drive block is fixedly connected to the front of the movable sleeve.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the spacing of the winding rod can be adjusted by using components such as pull rings and movable rods to adapt to optical cables of different thicknesses. The return spring allows the winding rod to pre-tighten and fix the optical cable, preventing loosening. The second servo electric cylinder and the moving sleeve drive the moving frame to move, while the first servo electric cylinder drives the pressure plate to further fix the optical cable. The fixing effect is good, the operation is convenient, and it can effectively adapt to optical cables of different specifications. It not only ensures that the optical cable is firmly fixed during the testing process, improving the accuracy and reliability of tensile strength testing, but also shortens the test preparation time. Furthermore, the servo motor drives the lead screw to rotate, which, combined with the guide rod, makes the moving block move stably. The tensile force sensor can accurately monitor the tensile force value in real time and display and save the test data in real time, facilitating subsequent analysis and comparison of the effect. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a tensile strength testing device for optical fiber and cable production provided by this utility model;

[0019] Figure 2 A perspective view of the fixing base structure of a tensile strength testing device for optical fiber and cable production provided by this utility model;

[0020] Figure 3 A perspective view of an L-shaped mounting plate structure for a tensile strength testing device used in the production of optical fibers and cables, provided by this utility model;

[0021] Figure 4 This utility model provides a tensile strength testing device for optical fiber and cable production. Figure 3 Enlarged view of the structure at point A in the middle;

[0022] Figure 5 A perspective view of the movable frame structure of a tensile strength testing device for optical fiber and cable production provided by this utility model.

[0023] Legend: 1. Fixed base; 2. Guide rod; 21. Moving block; 22. Servo motor; 23. Lead screw; 24. Tension sensor; 3. L-shaped mounting plate; 31. Sliding cavity; 32. Rectangular through slot; 33. Slider; 34. Return spring; 35. Winding rod; 36. Movable rod; 37. Pull ring; 38. Linear guide rail; 39. Moving sleeve; 310. Moving frame; 311. First servo electric cylinder; 312. Pressure plate; 313. Clearance through slot; 314. Second servo electric cylinder; 315. Drive block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a tensile strength testing device for optical fiber and cable production, including a fixed base 1, which serves as the basic support component of the entire device, providing installation space and stable support for the internal tensile moving mechanism and optical cable fixing mechanism. The fixed base 1 is equipped with a tensile moving mechanism, which drives the optical cable to perform tensile actions to test its tensile strength.

[0030] The stretching and moving mechanism includes guide rods 2. The two guide rods 2 are symmetrically distributed and their two ends are fixedly connected to the inner walls of the two sides of the fixed base 1, respectively, to provide guidance for the movement of the moving block 21 and ensure the linearity and stability of the movement of the moving block 21. The moving block 21 is slidably sleeved on the outside of the two guide rods 2 and can slide along the guide rods 2.

[0031] A servo motor 22 is fixedly installed on one side of the fixed base 1. As the power source of the stretching and moving mechanism, it can provide stable and controllable power output. The output shaft of the servo motor 22 is fixedly installed with a lead screw 23 through a coupling. One end of the lead screw 23 passes through the interior of the fixed base 1 and is rotatably connected to the inner wall of one side of the fixed base 1 through a bearing to ensure the stability of the rotation of the lead screw 23.

[0032] The lead screw 23 is threaded to the inner wall of the moving block 21. When the servo motor 22 drives the lead screw 23 to rotate, it can drive the moving block 21 to move along the guide rod 2.

[0033] A tension sensor 24 is fixedly installed on one inner wall of the mounting base 1. It is used to monitor the tension value of the optical cable in real time and accurately, provide data support for tensile strength detection, and record the peak tension when the optical cable breaks and display it on an external display for easy subsequent analysis and comparison.

[0034] The mounting base 1 is equipped with an optical cable fixing mechanism to securely fix optical cables of different specifications and ensure the accuracy of tensile testing.

[0035] The optical cable fixing mechanism includes an L-shaped mounting plate 3, one side of which is fixedly connected to one side of the tension sensor 24, and the lower end of the other L-shaped mounting plate 3 is fixedly connected to the upper end of the moving block 21, respectively for fixing the two ends of the optical cable.

[0036] The L-shaped mounting plate 3 has a sliding cavity 31 inside, which provides space for the sliding of the slider 33. The inner top wall of the sliding cavity 31 has a rectangular through groove 32, through which the winding rod 35 passes and extends to the top of the L-shaped mounting plate 3.

[0037] The inner wall of the sliding cavity 31 is slidably fitted with sliders 33 arranged in a linear array. One side of one slider 33 is fixedly connected to one side of the inner wall of the sliding cavity 31 as a fixed end, while the other sliders 33 can slide inside the sliding cavity 31.

[0038] A return spring 34 is provided between two adjacent sliders 33 to provide elastic force, so that the sliders 33 move closer to each other and pre-tighten and fix the optical cable wound on the winding rod 35 to prevent the optical cable from loosening.

[0039] The upper end of the slider 33 is fixedly connected to symmetrically distributed winding rods 35. The upper ends of multiple winding rods 35 pass through the rectangular through slot 32 and extend to the top of the L-shaped mounting plate 3. The optical cable can pass around multiple winding rods 35 in sequence to increase the contact area with the winding rods 35 and improve the fixing effect. A movable rod 36 is fixedly connected to one side of another slider 33 to drive the slider 33 to move and adjust the spacing of the winding rods 35.

[0040] One end of the movable rod 36 extends through to one side of the L-shaped mounting plate 3 and is fixedly connected to a pull ring 37. By pulling the pull ring 37, the movable rod 36 and the connected slider 33 can be moved, stretching the return spring 34 and increasing the spacing of the winding rod 35, which is convenient for winding and fixing optical cables of different thicknesses.

[0041] The upper end of the L-shaped mounting plate 3 is fixedly connected with symmetrically distributed linear guide rails 38. A movable sleeve 39 is slidably sleeved on the outside of the linear guide rails 38. The linear guide rails 38 provide guidance for the movement of the movable sleeve 39 and ensure the stability of the movement of the movable sleeve 39.

[0042] The upper ends of the two movable sleeves 39 are fixedly connected to movable frames 310, which move synchronously with the movable sleeves 39. The inner top wall of the movable frame 310 is fixedly installed with symmetrically distributed first servo electric cylinders 311, which serve as the power source for the movement of the pressure plate 312.

[0043] One end of each piston rod of the two first servo electric cylinders 311 is fixedly connected to a pressure plate 312. The extension and retraction of the piston rod of the first servo electric cylinder 311 can drive the pressure plate 312 to move up and down, further fixing the optical cable wound on the winding rod 35. The upper end of the pressure plate 312 is provided with an avoidance groove 313 to avoid the winding rod 35, so that the pressure plate 312 can be pressed down smoothly onto the surface of the optical cable.

[0044] The front and back of the L-shaped mounting plate 3 are fixedly mounted with symmetrically distributed second servo electric cylinders 314. One end of the piston rod of the second servo electric cylinder 314 is fixedly connected to a drive block 315, and one end of the drive block 315 is fixedly connected to the front of the movable sleeve 39.

[0045] The piston rod extension and retraction of the second servo electric cylinder 314 can drive the moving sleeve 39 to move along the linear guide rail 38 via the drive block 315, thereby adjusting the position of the moving frame 310 and the pressure plate 312 so that they accurately correspond to the wound optical cable for further fixation.

[0046] It should be noted that the electrical components mentioned above are all existing mature technologies, and appropriate models and power can be selected based on the technical knowledge of those skilled in the art, so they will not be described in detail here.

[0047] The working process of this utility model:

[0048] Step one: First, the pull ring 37 moves the movable rod 36, which in turn moves the connected slider 33. This slider 33 pulls the adjacent return spring 34, increasing the spacing of the winding rods 35 above each slider 33. Then, one end of the optical cable is sequentially wrapped around the winding rods 35 above multiple sliders 33 to complete the winding operation. After winding, the pull ring 37 is released, and the return spring 34 contracts due to its elasticity, causing multiple sliders 33 to slide closer together, thus bringing the multiple sets of winding rods 35 closer together. The optical cable is initially pre-tightened and pre-fixed to prevent it from loosening during subsequent testing. Then, the second servo electric cylinder 314 is activated, and its piston rod extends. Through the drive block 315, the moving sleeve 39 slides on the linear guide rail 38, driving the moving frame 310 to move to the corresponding position. Then, the first servo electric cylinder 311 is activated, and its piston rod extends. The clearance groove 313 on the pressure plate 312 clears the winding rod 35, and the pressure plate 312 moves downward to further fix the wound optical cable, ensuring that one end of the optical cable is firmly fixed.

[0049] Step two: Following the same method as above, fix the other end of the optical cable. After both ends of the optical cable are fixed, start the servo motor 22. The output shaft of the servo motor 22 drives the lead screw 23 to rotate through the coupling. Since the outside of the lead screw 23 is threadedly connected to the inner wall of the moving block 21, and the moving block 21 is slidably sleeved on the outside of the guide rod 2, when the lead screw 23 rotates, the moving block 21 will move along the guide rod 2, thereby driving the L-shaped mounting plate 3 connected to the moving block 21 away from the L-shaped mounting plate 3 on which the tension sensor 24 is fixed, thus stretching the optical cable. During the stretching process, the tension sensor 24 monitors the tension value in real time, and records and saves the peak tension when the optical cable breaks. At the same time, the data is displayed on an external display for staff to view, analyze and compare.

[0050] 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 tensile strength testing device for optical fiber and cable production, comprising a fixing base (1), characterized in that: The fixed base (1) is provided with a tensioning and moving mechanism inside; The tensioning and moving mechanism includes guide rods (2), two guide rods (2) are symmetrically distributed and their ends are fixedly connected to the inner walls of the two sides of the fixed seat (1), and moving blocks (21) are slidably sleeved on the outside of the two guide rods (2). A servo motor (22) is fixedly installed on one side of the fixed seat (1). A lead screw (23) is fixedly installed on the output shaft of the servo motor (22) through a coupling. One end of the lead screw (23) passes through the inside of the fixed seat (1) and is rotatably connected to the inner wall of one side of the fixed seat (1) through a bearing. The outside of the lead screw (23) is threadedly connected to the inner wall of the moving block (21). A tension sensor (24) is fixedly installed on the inner wall of one side of the fixed seat (1). The fixing base (1) is equipped with an optical cable fixing mechanism inside.

2. The tensile strength testing device for optical fiber and cable production according to claim 1, characterized in that: The optical cable fixing mechanism includes an L-shaped mounting plate (3), one side of which is fixedly connected to one side of the tension sensor (24), and the lower end of the other L-shaped mounting plate (3) is fixedly connected to the upper end of the moving block (21).

3. The tensile strength testing device for optical fiber and cable production according to claim 2, characterized in that: The L-shaped mounting plate (3) has a sliding cavity (31) inside. The inner top wall of the sliding cavity (31) has a rectangular through groove (32). The inner wall of the sliding cavity (31) is slidably fitted with sliders (33) arranged in a linear array. One side of one of the sliders (33) is fixedly connected to one side of the inner wall of the sliding cavity (31).

4. The tensile strength testing device for optical fiber and cable production according to claim 3, characterized in that: A reset spring (34) is provided between two adjacent sliders (33). A symmetrically distributed winding rod (35) is fixedly connected to the upper end of the slider (33). The upper ends of multiple winding rods (35) pass through the rectangular through slot (32) and extend to the top of the L-shaped mounting plate (3). A movable rod (36) is fixedly connected to one side of another slider (33).

5. The tensile strength testing device for optical fiber and cable production according to claim 4, characterized in that: One end of the movable rod (36) extends through to one side of the L-shaped mounting plate (3) and is fixedly connected to a pull ring (37). The upper end of the L-shaped mounting plate (3) is fixedly connected to symmetrically distributed linear guides (38), and a movable sleeve (39) is slidably sleeved on the outside of the linear guides (38).

6. The tensile strength testing device for optical fiber and cable production according to claim 5, characterized in that: The upper ends of the two movable sleeves (39) are fixedly connected to movable frames (310). The inner top wall of the movable frames (310) is fixedly installed with symmetrically distributed first servo electric cylinders (311). One end of the piston rod of the two first servo electric cylinders (311) is fixedly connected to a pressure plate (312). The upper end of the pressure plate (312) is provided with an avoidance groove (313).

7. The tensile strength testing device for optical fiber and cable production according to claim 6, characterized in that: The front and back of the L-shaped mounting plate (3) are fixedly mounted with symmetrically distributed second servo electric cylinders (314). One end of the piston rod of the second servo electric cylinder (314) is fixedly connected to a drive block (315), and one end of the drive block (315) is fixedly connected to the front of the movable sleeve (39).

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