Optical fiber drawing tower center positioning device

Abstract

This utility model relates to the field of positioning device technology and discloses a center positioning device for an optical fiber drawing tower, comprising: a fixed back plate, wherein a positioning plate is fixedly installed at the lower end of the fixed back plate, and a horizontal plate bracket is provided at the lower end of the positioning plate; a glass tube fixing plate, installed inside the horizontal plate bracket, wherein a movable cover plate is provided inside the horizontal plate bracket at the upper end of the glass tube fixing plate, and a through hole is provided at the center of the movable cover plate; a first adjustment groove, horizontally opened inside the fixed back plate, wherein a first positioning screw is installed inside the first adjustment groove; and a second adjustment groove, vertically opened inside the positioning plate, wherein a second positioning screw is installed inside the second adjustment groove. This utility model uses a fixed frame structure, and after tower calibration, the positioning device serves as the base point for subsequent tower center calibration.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, specifically to a fiber optic drawing tower center positioning device. Background Technology

[0002] The optical fiber preform is melted in a drawing furnace 25 meters above the ground. After the molten fiber filaments are filled and coated with protective coatings in a mold on the second floor, they are drawn to the take-up machine at a speed exceeding 2000 meters per minute. The center position of the drawing tower is extremely important. To meet the relevant performance indicators of the optical fiber, any misalignment of any equipment or guide roller will seriously affect the product quality. Therefore, it is essential to ensure that the drawing furnace at the top and the take-up positioning roller at the bottom are in a centered, horizontal, and vertical position.

[0003] Traditional retractable brackets, due to their movable frame, have swaying gaps in all directions, making them unsuitable as positioning devices for the center point. Therefore, a center positioning device for fiber optic cable drawing towers is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a fiber optic drawing tower center positioning device to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fiber optic drawing tower center positioning device, comprising:

[0008] A fixed back plate is provided, wherein a positioning plate is fixedly installed at the lower end of the fixed back plate, and a horizontal plate bracket is provided at the lower end of the positioning plate.

[0009] A glass tube fixing plate is installed inside a horizontal plate bracket. A movable cover plate is provided at the upper end of the glass tube fixing plate inside the horizontal plate bracket. A through hole is provided at the center of the movable cover plate.

[0010] The first adjustment groove is horizontally opened inside the fixed back plate, and the first positioning screw is installed inside the first adjustment groove.

[0011] The second adjustment groove is longitudinally opened inside the positioning plate, and the second positioning screw is installed inside the second adjustment groove.

[0012] The glass tube fixing plate has a semi-circular snap-on opening and closing design, which facilitates the installation and removal of the glass tube.

[0013] Preferably, the inner diameter of the perforation is 500 μm, and the perforation is integrally formed with the movable cover plate.

[0014] Preferably, magnet blocks are provided at both ends of the movable cover, and the magnet blocks are fixedly connected to the movable cover.

[0015] Preferably, the interior of the horizontal plate bracket has positioning grooves on both sides outside the magnet block, and the positioning grooves are adapted to the magnet block. The positioning grooves are used to position the magnet block.

[0016] Preferably, an iron sheet is fixedly installed inside the positioning groove, and a magnet is magnetically connected to the iron sheet. The magnet is attached to the iron sheet so that the movable cover can be easily disassembled and fixed.

[0017] Preferably, a lever is installed at the upper end of the magnet block, and the lever is fixedly connected to the magnet block. The lever makes it easy to open and disassemble the movable cover.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a fiber optic drawing tower center positioning device, which has the following features:

[0020] Beneficial effects:

[0021] This invention solves the problems mentioned in the background art by installing a movable cover plate on the upper end of the glass tube fixing plate inside the horizontal plate bracket, and using the through hole as the center of the cable laying hole. After the overall calibration of the tower, this position will not change and can be used as the base point for subsequent tower center calibration. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0023] Figure 2 This is a perspective view of the horizontal plate bracket and glass tube fixing plate structure of this utility model;

[0024] Figure 3 This is a perspective view of the movable cover plate structure of this utility model.

[0025] In the diagram: 1. Fixed back plate; 2. First positioning screw; 3. Second positioning screw; 4. Positioning plate; 5. Horizontal plate bracket; 6. Glass tube fixing plate; 7. Movable cover plate; 8. Perforation; 9. First adjustment groove; 10. Second adjustment groove; 11. Positioning groove; 12. Iron sheet; 13. Magnet block; 14. Lever. Detailed Implementation

[0026] 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.

[0027] This utility model provides a technical solution: a fiber optic drawing tower center positioning device. Please refer to [link / reference needed]. Figure 1 , Figure 2 and Figure 3 ,include:

[0028] A fixed back plate 1 is provided, and a positioning plate 4 is fixedly installed at the lower end of the fixed back plate 1. A horizontal plate bracket 5 is provided at the lower end of the positioning plate 4.

[0029] A glass tube fixing plate 6 is installed inside the horizontal plate bracket 5. A movable cover plate 7 is provided at the upper end of the glass tube fixing plate 6 inside the horizontal plate bracket 5. A through hole 8 is provided at the center of the movable cover plate 7.

[0030] The first adjustment groove 9 is horizontally opened inside the fixed back plate 1, and the first positioning screw 2 is installed inside the first adjustment groove 9.

[0031] The second adjustment groove 10 is longitudinally opened inside the positioning plate 4, and the second positioning screw 3 is installed inside the second adjustment groove 10.

[0032] The glass tube fixing plate 6 is a semi-circular snap-on type, which facilitates the installation and removal of the glass tube.

[0033] Please see Figure 1 and Figure 3 The inner diameter of the perforation 8 is 500um, and the perforation 8 is integrally formed with the movable cover plate 7.

[0034] Please see Figure 2 and Figure 3 Magnet blocks 13 are provided at both ends of the movable cover plate 7, and the magnet blocks 13 are fixedly connected to the movable cover plate 7.

[0035] Please see Figure 2 and Figure 3 The inside of the horizontal plate bracket 5 is provided with positioning grooves 11 on both sides outside the magnet block 13, and the positioning grooves 11 are adapted to the magnet block 13. The positioning grooves 11 are used to position the magnet block 13.

[0036] Please see Figure 2 and Figure 3An iron sheet 12 is fixedly installed inside the positioning groove 11, and a magnetic block 13 is magnetically connected to the iron sheet 12. The magnetic block 13 is connected to the iron sheet 12 so that the movable cover 7 can be easily disassembled and fixed.

[0037] Please see Figure 1 and Figure 3 A lever 14 is installed on the upper end of the magnet block 13, and the lever 14 is fixedly connected to the magnet block 13. The lever 14 makes it easy to lift and disassemble the movable cover plate 7.

[0038] This solution involves: loosening the first positioning screw 2 and changing its position in the first adjustment groove 9 to allow the fixed back plate 1 to be adjusted left and right outside the wire drawing tower crossbeam; loosening the second positioning screw 3 to allow the cross plate bracket 5 to move back and forth; then tightening the second positioning screw 3 to allow the cross plate bracket 5 to be adjusted back and forth; the glass tube fixing plate 6 is a semi-circular snap-on type, which facilitates the disassembly and assembly of the glass tube; during center calibration, the movable cover plate 7 is placed on the upper end of the glass tube fixing plate 6 inside the cross plate bracket 5; the magnet 13 is inserted into the positioning groove 11; the magnet 13 and the iron plate 12 are attracted by magnetic force to fix the movable cover plate 7; and the through hole 8 serves as the wire release hole for the calibration center.

[0039] 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.

[0040] 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 center positioning device for an optical fiber drawing tower, characterized by, include: A fixed back plate (1) is provided, and a positioning plate (4) is fixedly installed at the lower end of the fixed back plate (1). A horizontal plate bracket (5) is provided at the lower end of the positioning plate (4). A glass tube fixing plate (6) is installed inside a horizontal plate bracket (5). A movable cover plate (7) is provided inside the horizontal plate bracket (5) at the upper end of the glass tube fixing plate (6). A through hole (8) is provided at the center of the movable cover plate (7). The first adjustment groove (9) is horizontally opened inside the fixed back plate (1), and the first positioning screw (2) is installed inside the first adjustment groove (9); The second adjustment groove (10) is longitudinally opened inside the positioning plate (4), and the second positioning screw (3) is installed inside the second adjustment groove (10).

2. The optical fiber draw tower center positioning apparatus of claim 1, wherein: The inner diameter of the perforation (8) is 500 μm, and the perforation (8) and the movable cover plate (7) are integrally formed.

3. The optical fiber draw tower center positioning apparatus of claim 1, wherein: The movable cover plate (7) is provided with magnet blocks (13) at both ends of its exterior, and the magnet blocks (13) are fixedly connected to the movable cover plate (7).

4. The optical fiber draw tower center positioning apparatus of claim 3, wherein: The interior of the horizontal plate bracket (5) is provided with positioning grooves (11) on both sides outside the magnet block (13), and the positioning grooves (11) are adapted to the magnet block (13).

5. The optical fiber draw tower center positioning apparatus of claim 4, wherein: An iron sheet (12) is fixedly installed inside the positioning groove (11), and the magnet block (13) is magnetically connected to the iron sheet (12).

6. The optical fiber draw tower center positioning apparatus of claim 3, wherein: A lever (14) is installed at the upper end of the magnet block (13), and the lever (14) is fixedly connected to the magnet block (13).

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