Optical fiber disc

Abstract

The invention relates to an optical fiber disc which is composed of a pair of injection molding parts, each injection molding part comprises a flange plate and a cylinder body coaxially connected to one side of the flange plate, the cylinder bodies of the pair of injection molding parts are coaxially connected, a positioning end cover, a straight rib and a flange rib are arranged on the outer side of the flange plate, and the positioning end cover and the flange plate are coaxially arranged. The straight ribs are radially distributed with the midpoint of the flange plate as the center, the flange ribs extend along the periphery of the flange plate, the flange plate coaxially extends out of the shaft sleeve in the barrel, the inner wall of the barrel, the outer wall of the shaft sleeve and the inner side of the flange plate are connected through supporting plates, the supporting plates extend in the radial direction of the shaft sleeve, and the supporting plates are evenly distributed in the circumferential direction of the shaft sleeve. The diameter of the flange plate is larger than that of the cylinder, and the flange plate gradually inclines towards the inner side of the optical fiber disc from the joint of the flange plate and the cylinder to the outer edge of the flange plate. Deformation and deflection of the flange plate and the cylinder body of the optical fiber disc are effectively reduced, so that change of the inner width of the flange of the optical fiber disc is effectively avoided, and finally the uniform arrangement degree of optical fibers is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber disk structure, in particular to an optical fiber disk. Background Art

[0002] The main function of the fiber optic reel is to store optical fibers, and it often acts as a take-up component in the take-up device system of the optical fiber screening machine. Its working process is mainly that after the cable arrangement component pulls and discharges the optical fiber, the optical fiber reel rotates at high speed to reel it up, and finally completes the reeling after reaching the specified number of kilometers. The uniformity of optical fiber arrangement is considered to be the key indicator for successful storage. Under working conditions, the speed of the optical fiber screening machine is as high as 2800-3000m / min. The stability of the optical fiber reel directly affects the uniformity of the optical fiber arrangement. Therefore, it is very important to optimize the structure of the optical fiber reel during the production process.

[0003] The fiber optic disc is generally made of two injection molded parts. The strength of the injection molded parts directly affects the quality of the fiber optic disc. The injection molded part is coaxially connected by a flange and a cylinder. The flange is also distributed with radial straight ribs and positioning end caps higher than the straight ribs on the side relative to the cylinder. Combining actual conditions with theoretical research, it is shown that when the flange surface is vertical, the optical fibers on the fiber optic disc are arranged most evenly. However, different types of fiber optic discs are affected by various factors such as the type of screening machine, the clamping method of the disc, the state of each process, etc., when the screening machine rotates at high speed. The flange surface will have different degrees of deflection and deformation, resulting in a large change in the inner width of the flange. Even if there is a certain wiring spacing and automatic wiring function as a tolerance adjustment, the optical fiber on the fiber optic reel may still be convex, concave, or even twisted together. Moreover, due to the low height of the straight ribs, when the flange has an abnormal phenomenon of excessive deflection, it will have an adverse effect on the fiber winding, such as disordered arrangement of the optical fiber, and sometimes even fiber breakage accidents. Therefore, it is of great practical significance to improve the structure of the fiber optic reel and reduce the deformation and deflection of the flange surface under various conditions. Summary of the invention

[0004] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the flange of the high-speed rotating optical fiber disk will have different degrees of deflection and deformation, resulting in unsatisfactory uniformity of optical fiber arrangement on the optical fiber disk, and thus provide an optical fiber disk, which effectively reduces the deformation and deflection of the flange and cylinder of the optical fiber disk under high-speed rotation and different clamping methods, thereby effectively avoiding the change of the inner width of the optical fiber disk flange, and ultimately ensuring the uniform arrangement of the optical fibers.

[0005] In order to solve the above technical problems, the present invention provides an optical fiber disk, which is composed of a pair of injection molded parts, wherein the injection molded parts include a flange and a cylinder coaxially connected to one side of the flange, the cylinders of the pair of injection molded parts are coaxially connected, and a positioning end cover, a straight rib and a flange rib are provided on the outer side of the flange, the positioning end cover is coaxially arranged with the flange, a plurality of the straight ribs are radially distributed with the midpoint of the flange as the center, and the flange ribs extend along the periphery of the flange. The flange coaxially extends out of the sleeve in the cylinder, the inner wall of the cylinder, the outer wall of the sleeve and the inner side of the flange are connected by a support plate, the support plate extends in the radial direction of the sleeve, and a plurality of the support plates are evenly distributed along the circumference of the sleeve, wherein the support plate is recessed on the end surface away from the flange in the direction close to the flange to form a primary notch, and the primary notch is set to an inverted trapezoidal structure; The diameter of the flange is greater than the diameter of the cylinder, and the flange is gradually inclined toward the inner side of the optical fiber plate from the connection point with the cylinder to the outer edge thereof.

[0006] In one embodiment of the present invention, the height of the straight rib is higher than the height of the flange rib, and one end of the straight rib is connected to the flange rib via a slope.

[0007] In one embodiment of the present invention, the flange is provided with a threading hole, the threading hole is located between two adjacent straight ribs, and the straight ribs located on both sides of the threading hole are recessed to form arc-shaped recesses, and the arc-shaped recesses are arranged corresponding to the threading hole.

[0008] In one embodiment of the present invention, the height of the arc-shaped recess is 3.5 mm, and the height of the straight rib is 7 mm.

[0009] In one embodiment of the present invention, the inner wall of the cylinder is provided with reinforcing ribs with a "T"-shaped cross section, the reinforcing ribs extend along the axial direction of the cylinder, and a plurality of the reinforcing ribs are evenly distributed on the inner wall of the cylinder.

[0010] In one embodiment of the present invention, one end of the reinforcing rib is connected to the flange, and one end of the reinforcing rib extends outside the cylinder.

[0011] In one embodiment of the present invention, a gap is provided between adjacent reinforcing ribs, and the gap is contour matched with the reinforcing ribs.

[0012] In one embodiment of the present invention, the support plate is recessed in the primary notch along a direction close to the flange to form a secondary notch, and the secondary notch is configured as a rectangular structure.

[0013] In one embodiment of the present invention, the positioning end cover is provided with a positioning hole coaxial with the shaft sleeve, and the positioning hole passes through the inner hole of the shaft sleeve.

[0014] In one embodiment of the present invention, the outer width of the optical fiber disc is 176.4 mm, the inner width of the optical fiber disc is 150 mm, and the diameter of the cylinder is 170 mm.

[0015] The above technical solution of the present invention has the following advantages compared with the prior art: The optical fiber disc of the present invention is provided with a support plate between the inner wall of the cylinder and the sleeve, and the support plate supports and offsets the shrinkage force / tension of the optical fiber surrounding, which is beneficial to improve the structural strength of the injection molded part, so that the optical fiber disc can arrange the wires stably and evenly during the wire collection process; the support plate is provided with a first-level notch of an inverted trapezoidal structure, and the stability of the support plate is improved by the triangular structure. The first-level notch can also reduce the volume and material of the support plate, and reduce the shrinkage rate of the injection molded part to a minimum when solidifying; the flanges of the two injection molded parts are both inclined toward the inside of the optical fiber disc, compared with the vertical cylinder arrangement of the flange and the inclined arrangement of the flange toward the outside of the optical fiber disc, when the optical fiber disc rotates at high speed under the central clamping mode of the optical fiber screening machine, the outer edge of the flange is inclined toward the outside of the flange to the minimum degree, and when the optical fiber screening machine is stationary (that is, after the inward force of the flange disappears), the flange will not be excessively inclined (will not be deformed outward) due to the outward squeezing force of the optical fiber, and the gap between the flange and the optical fiber is minimized, thereby ensuring the uniformity of the optical fiber arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of a front view of an optical fiber tray in one embodiment of the present invention; Figure 2 for Figure 1 A schematic structural diagram of a cross-sectional view of the optical fiber disk shown; Figure 3 for Figure 1 A schematic structural diagram of a side view of the optical fiber tray shown; Figure 4 for Figure 1 A schematic structural diagram of a front view of an injection molded part of the optical fiber tray shown; Figure 5 It is a structural schematic diagram of a front view of a fiber optic disc in another embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of a partial structure of the optical fiber disk; Explanation of the reference numerals in the drawings in the specification: 1. flange; 11. side panel; 12. threading hole; 2. cylinder; 4. positioning end cover; 41. positioning hole; 5. straight rib; 51. slope; 52. arc-shaped notch; 6. support plate; 61. primary notch; 62. secondary notch; 7. reinforcing rib; 8. bushing; 81. inner hole; 9. flange rib; R, cylinder diameter; H1, outer width; H2, outer spacing of flange; H3, inner width of flange. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Example

[0019] Reference Figure 2 , 3 , 4 and 5, in one embodiment of the present invention, a fiber optic disc is disclosed, which is used in a fiber optic screening machine. The fiber optic disc is composed of a pair of injection molded parts, and the injection molded parts are made of ABS resin. Each of the injection molded parts includes a circular flange 1 and a cylinder 2 coaxially connected to one side of the flange 1. The cylinders 2 of a pair of injection molded parts are coaxially spliced. A positioning end cover 4, straight ribs 5 and flange ribs 9 are provided on the outer side of the flange 1. The positioning end cover 4 is coaxially arranged with the flange 1, the diameter of the positioning end cover 4 is smaller than the diameter of the flange 1, and the diameter of the positioning end cover 4 is equal to the diameter of the cylinder 2. A plurality of straight ribs 5 are evenly distributed radially with the midpoint of the flange 1 as the center, and the flange ribs 9 extend along the periphery of the flange 1. The straight ribs 5 extend to the edge of the flange 1 and are connected to the flange ribs 9. The flange 1 coaxially extends a sleeve 8 in the cylinder 2, and the sleeve 8 is used to be sleeved on the outside of the rotating shaft of the optical fiber screening machine. The inner wall of the cylinder 2, the outer wall of the sleeve 8 and the inner side of the flange 1 are connected by a support plate 6. The support plate 6 is arranged parallel to the axis of the flange 1, and the support plate 6 extends along the radial direction of the sleeve 8, and is used to support the cylinder 2 to offset the inward contraction force / tension of the optical fiber surrounding; six support plates 6 are evenly distributed along the circumference of the sleeve 8, wherein the support plate 6 is recessed on the end face away from the flange 1 along the direction close to the flange 1 to form a primary notch 61, and the primary notch 61 is set to an inverted trapezoidal structure, and the inverted trapezoidal structure specifically refers to that the width of the aperture of the primary notch 61 is wider than the width of its bottom, and the two sides of the inverted trapezoidal structure extend to the inner wall of the cylinder 2; The diameter of the flange 1 is larger than the diameter of the cylinder 2. The flange 1 is gradually tilted toward the inside of the optical fiber disc from the connection with the cylinder 2 to its outer edge. The portion of the flange 1 that is higher than the cylinder 2 along its radial direction can be regarded as the side plate 11 that acts as a limit for the optical fiber. It can be considered that the side plate 11 gradually tilts toward the inside of the optical fiber disc. The side plate 11 is similar to a truncated cone. The portion left after the top and bottom surfaces are removed is directly sheathed outside the cylinder 2. The tilt angle of the side plate 11 is between 0 and 10 degrees. When the optical fiber disc is working, it is directly sheathed outside the cylinder 2. Clamped from both sides, the optical fiber reel is subjected to the inward pressure of the optical fiber screening machine and the outward squeezing force of the optical fiber, and the outward squeezing force of the optical fiber mainly acts on the side panel 11. Therefore, compared with the side panel 11 being perpendicular to the cylinder 2 and the side panel 11 being inclined toward the outside of the optical fiber reel, the side panel 11 inclined inwardly undergoes the least deformation and deflection when the optical fiber reel is empty, full of fibers, or at rest. That is, the gap between the optical fiber and the side panel 11 is the smallest. Therefore, the change in the inner width of the flanges of the two injection molded parts is the smallest, and the optical fiber arrangement will be more uniform.

[0020] Reference Figure 5 As shown, the height of the straight rib 5 is higher than the height of the flange rib 9. The straight rib 5 is used to enhance the structural strength of the entire flange surface, and the flange rib 9 is used to enhance the strength of the edge of the flange 1. One end of the straight rib 5 is connected to the flange rib 9 through a slope 51. The slope 51 is obtained by beveling one end of the straight rib 5. The slope 51 can be regarded as a triangular structure to improve the supporting effect on the flange rib 9. The height can be understood as the length of the straight rib 5 and the straight rib 5 along the axial direction of the flange 1.

[0021] Reference Figure 6 As shown, the flange is provided with a threading hole 12, and the threading hole 12 is located between two adjacent straight ribs 5. After the optical fiber passes through the threading hole 12, it is stored on the optical fiber disc. As the height of the straight ribs 5 increases, the distance from the end face of the straight ribs 5 to the flange surface increases. During the winding process, the friction between the optical fiber and the straight ribs 5 may cause fiber breakage. Therefore, in order to reduce the local height of the straight ribs 5, the straight ribs 5 located on both sides of the threading hole 12 are recessed to form arc-shaped recesses 52. The arc-shaped recesses 52 are arranged corresponding to the threading holes 12. When winding, the optical fiber laps over the arc-shaped recesses 52, and the height difference of the fiber winding and the risk of fiber breakage are significantly reduced.

[0022] Furthermore, the height of the straight rib 5 ranges from 7 mm to 11.5 mm. In this embodiment, the height of the straight rib 5 is preferably 7 mm, and the height of the arc-shaped recess 52 is 3.5 mm.

[0023] Furthermore, in order to improve the structural strength of the cylinder 2, the inner wall of the cylinder 2 is provided with reinforcing ribs 7 with a "T"-shaped cross-section. The reinforcing ribs 7 extend along the axial direction of the cylinder 2, and a plurality of the reinforcing ribs 7 are evenly distributed on the inner wall of the cylinder 2.

[0024] Furthermore, one end of the reinforcing rib 7 is fixedly connected to the flange 1, and one end of the reinforcing rib 7 extends outside the cylinder 2 to form a splicing tooth, and the splicing tooth is used to realize the splicing of two injection molded parts. Specifically, when splicing, the cylinder 2 holding the two injection molded parts is in a coaxial state, and the splicing teeth of the two cylinders 2 are staggered with each other. After the two cylinders 2 are close to each other, the splicing teeth of one cylinder 2 are inserted between the two splicing teeth of the other cylinder 2 until the end faces of the two cylinders 2 are completely abutted. At this time, the two injection molded parts cannot rotate relative to each other.

[0025] Furthermore, a gap is provided between adjacent reinforcing ribs 7, and the gap is used to accommodate the splicing teeth of another injection-molded part. The gap is matched with the reinforcing ribs 7 in a contour, so that the two injection-molded parts cannot rotate relative to each other after being spliced.

[0026] Reference Figure 2 As shown, the support plate 6 is recessed in the primary notch 61 along the direction close to the flange 1 to form a secondary notch 62, and the secondary notch 62 is set to a rectangular structure. Regarding the formation of the primary notch 61 and the secondary notch 62, it can be understood that in order to improve the stability of the support plate 6 through the stability principle of the triangular structure, a triangular notch recessed in the direction close to the flange 1 is first made on the support plate 6, and the cylinder 2 and the sleeve 8 are supported by the two oblique sides of the triangular notch. However, for the support plate 6 with a triangular structure, the two oblique sides of the triangle and the straight sides of the support plate 6 form a structure similar to the letter "K", which makes the injection-molded plastic of the support plate 6 concentrated in a narrow channel, causing it to be difficult to flow. Therefore, at the sharp corner of the triangular notch, it is recessed again in the direction close to the flange 1 to form a nested rectangular notch. The rectangular notch and the straight sides forming the support plate 6 form a parallel channel, which accelerates the flow of plastic.

[0027] Reference Figure 1 As shown, the positioning end cover 4 is provided with a positioning hole 41 coaxial with the shaft sleeve 8 , and the positioning hole 41 passes through the inner hole 81 of the shaft sleeve 8 .

[0028] Reference Figure 1 As shown, the outer width H1 of the optical fiber disc is 176.4 mm, and the outer width refers to the length of the optical fiber disc along its axial direction (including the positioning end cover). The inner width (flange inner width) H3 of the optical fiber disc is 150 mm, and the inner width (flange inner width) is the distance between the two flanges. The diameter R of the cylinder 2 is 170 mm, and the spacing H2 between the outer sides of the two flanges 1 is 169 mm.

[0029] In another embodiment of the present invention, referring to Figure 1 As shown, the optical fiber tray is arranged in a vertical type, that is, the side plate 11 of the optical fiber tray is arranged vertically to the cylinder 2.

[0030] The working principle of the optical fiber disc of the present invention is: Taking the central clamping method as an example, after the optical fiber reel is clamped by the optical fiber screening machine, the centers of both sides of the optical fiber reel are subjected to the inward force from the optical fiber screening machine. During the winding process, under the high-speed rotation state and the outward squeezing force from the optical fiber, the side panels 11 (outer edges) of the optical fiber reel are slightly opened outward, but the deflection amount is smaller than the inclination amount of the side panels 11, so the side panels 11 can still hold the optical fiber from both sides, so that the gap between the side panels 11 and the optical fiber is very small, and the inner width of the flange of the optical fiber reel does not change much, even in the empty reel, full of fiber, and unloaded The machine is stationary, the inner width of the flange of the optical fiber reel does not change much, thereby ensuring the uniformity of the optical fiber arrangement.

[0031] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. An optical fiber tray, which is composed of a pair of injection molded parts, wherein the injection molded parts include a flange and a cylinder coaxially connected to one side of the flange, the cylinders of the pair of injection molded parts are coaxially connected, a positioning end cap, a straight rib and a flange rib are provided on the outer side of the flange, the positioning end cap is coaxially arranged with the flange, a plurality of the straight ribs are radially distributed with the midpoint of the flange as the center, and the flange ribs extend along the periphery of the flange, characterized in that: The flange coaxially extends out of the sleeve in the cylinder, the inner wall of the cylinder, the outer wall of the sleeve and the inner side of the flange are connected by a support plate, the support plate extends in the radial direction of the sleeve, and a plurality of the support plates are evenly distributed along the circumference of the sleeve, wherein the support plate is recessed on the end surface away from the flange in the direction close to the flange to form a primary notch, and the primary notch is set to an inverted trapezoidal structure; The diameter of the flange is greater than the diameter of the cylinder, and the flange is gradually inclined toward the inner side of the optical fiber plate from the connection point with the cylinder to the outer edge thereof.

2. The optical fiber tray according to claim 1, characterized in that: The height of the straight rib is higher than that of the flange rib, and one end of the straight rib is connected to the flange rib via a slope.

3. The optical fiber tray according to claim 1, characterized in that: The flange is provided with a threading hole, the threading hole is located between two adjacent straight ribs, and the straight ribs located on both sides of the threading hole are recessed to form arc-shaped recesses, and the arc-shaped recesses are arranged corresponding to the threading hole.

4. The optical fiber tray according to claim 3, characterized in that: The height of the arc-shaped recess is 3.5 mm, and the height of the straight rib is 7 mm.

5. The optical fiber tray according to claim 1, characterized in that: The inner wall of the cylinder is provided with reinforcing ribs with a "T"-shaped cross section, the reinforcing ribs extend along the axial direction of the cylinder, and a plurality of the reinforcing ribs are evenly distributed on the inner wall of the cylinder.

6. The optical fiber tray according to claim 5, characterized in that: One end of the reinforcing rib is connected to the flange, and one end of the reinforcing rib extends outside the cylinder.

7. The optical fiber tray according to claim 5, characterized in that: A gap is provided between adjacent reinforcing ribs, and the gap is contour matched with the reinforcing ribs.

8. The optical fiber tray according to claim 1, characterized in that: The support plate is recessed in the primary notch along a direction close to the flange to form a secondary notch, and the secondary notch is set to a rectangular structure.

9. The optical fiber tray according to claim 1, characterized in that: The positioning end cover is provided with a positioning hole coaxial with the shaft sleeve, and the positioning hole passes through the inner hole of the shaft sleeve.

10. The optical fiber tray according to claim 1, characterized in that: The outer width of the optical fiber disc is 176.4 mm, the inner width of the optical fiber disc is 150 mm, and the diameter of the cylinder is 170 mm.

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