Collimating and centering adjusting device for annealing tube of optical fiber drawing furnace
By designing a collimation and alignment adjustment device for the annealing tube in an optical fiber drawing furnace, and utilizing the cooperation of a shaft frame, screw, and hexagonal button, combined with a laser alignment instrument, multi-angle adjustment and precise alignment of the annealing tube were achieved. This solved the problem of low efficiency in traditional adjustment methods and improved the quality of optical fibers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIXIN COMM TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional methods for adjusting the annealing tubes in optical fiber drawing furnaces are inefficient, making it difficult to guarantee accuracy and consistency, which affects the quality of optical fibers.
A collimation and centering adjustment device for annealing tubes in an optical fiber drawing furnace was designed, including a base plate, a laser alignment instrument, an adjustment mechanism, a support mechanism, a limiting mechanism, and a positioning mechanism. Through the cooperation of a shaft frame, a screw, and a hexagonal button, the centering mechanism can be adjusted at multiple angles, and the laser alignment instrument provides center guidance.
This improves the collimation and alignment accuracy of the annealing tube, ensuring uniform stress and temperature distribution on the optical fiber during the annealing process, and enhancing the tensile strength and optical performance of the optical fiber.
Smart Images
Figure CN224242957U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical fiber drawing technology, specifically a collimation and centering adjustment device for the annealing tube of an optical fiber drawing furnace. Background Technology
[0002] With the rapid development of optical communication technology, optical fiber, as the core carrier of information transmission, directly determines the stability and transmission efficiency of the communication system through its quality and performance. In the optical fiber drawing process, the annealing process is a crucial step in ensuring the mechanical strength and optical performance of the fiber. The annealing tube, as the core component of optical fiber annealing, plays a decisive role in the quality of the fiber due to its collimation and alignment accuracy.
[0003] In traditional optical fiber drawing furnace annealing tube adjustment technology, manual adjustment is mostly used. Operators rely on experience to adjust the position and angle of the annealing tube using simple measuring tools. This method is not only inefficient, but also difficult to guarantee the accuracy and consistency of the adjustment. It is greatly affected by human factors and is prone to insufficient collimation and alignment of the annealing tube. This can lead to uneven stress and abnormal temperature distribution in the optical fiber during annealing, ultimately causing surface quality defects and internal stress concentration, which seriously affects the tensile strength and optical performance of the optical fiber.
[0004] Therefore, this utility model provides a device for adjusting the alignment of the annealing tube in an optical fiber drawing furnace. Utility Model Content
[0005] To overcome the shortcomings of the existing technology and solve at least one of the problems mentioned in the background technology, a collimation and centering adjustment device for the annealing tube of an optical fiber drawing furnace is proposed.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The optical fiber drawing furnace annealing tube collimation and centering adjustment device of this utility model includes a base plate and a laser alignment instrument; the surface of the base plate has mounting holes, the center of the base plate has a rectangular limiting hole, adjustment mechanisms are provided on both sides of the top of the base plate, and support mechanisms are provided on both sides of the top of the base plate; the inner wall of the first support block is provided with a centering mechanism, and the two sides of the top of the base plate away from the adjustment mechanism are provided with limiting mechanisms; the top of the base plate is provided with a positioning mechanism; the adjustment mechanism includes a shaft frame, a screw, and a hexagonal button; two sets of shaft frames are provided, and the two sets of shaft frames are fixedly installed on the horizontal and vertical sides of the top of the base plate; the inner wall of the shaft frame is threadedly installed with the screw; the end of the screw away from the base plate is fixedly installed with the hexagonal button; the combined use of the shaft frame, screw, and hexagonal button allows the user to easily adjust the angle of the centering mechanism, enabling multi-angle planar adjustment of the centering mechanism according to actual conditions, ensuring the practicality of the equipment.
[0007] Preferably, the support mechanism includes a connecting block, a first support block, and a dovetail groove. The connecting block is rotatably mounted on the end of the screw away from the hexagonal button. The end of the connecting block away from the screw is fixedly mounted to the first support block. The dovetail groove is provided on the side of the first support block away from the connecting block. In this design, the connecting block enables the first support block to be connected to the screw, while also preventing the screw from driving the first support block to rotate. The dovetail groove on the first support block makes the first sliding strip more stable during sliding and prevents it from falling off.
[0008] Preferably, the alignment mechanism includes a first sliding bar, a scale, a support plate, and an alignment block. The first sliding bar is slidably mounted on the inner wall of the first support block through a dovetail groove. A scale is provided on the top of the first sliding bar. The side of the first sliding bar away from the first support block is fixedly mounted to the support plate. The end of the support plate away from the first sliding bar is fixedly mounted to the alignment block. Four sets of support plates are provided, and the four sets of support plates are fixedly mounted in a ring on the surface of the alignment block. In this scheme, the use of the first sliding bar and the scale allows the user to observe and adjust the angle in real time, so as to facilitate the user's precise calibration. The use of the support plate and the alignment block allows the optical fiber to be aligned in a timely manner during production.
[0009] Preferably, the limiting mechanism includes a limiting groove, a sliding block, a second support block, and a second sliding bar. Two sets of limiting grooves are provided, located on the top of the base plate on both sides away from the shaft frame. The sliding block is slidably mounted on the top of the base plate through the limiting groove. The top of the sliding block is fixedly mounted to the second support block. The inner wall of the second support block is slidably mounted to the second sliding bar. The side of the second sliding bar away from the second support block is fixedly mounted to the support plate. In this design, the combined use of the limiting groove, the sliding block, and the second support block allows movement based on the pushing and pulling of the opposing screws, ensuring the centering block remains stable during adjustment. The second sliding bar can slide during centering block adjustment to further ensure stability during adjustment.
[0010] Preferably, the positioning mechanism includes a socket, a rod, and a bracket. The socket is located on the top of the centering block, and the rod is movably inserted into the top of the centering block through the socket. The top end of the rod is fixedly installed with the bracket. In this design, the combined use of the socket, rod, and bracket can provide stable support for the laser alignment instrument, while also enabling quick assembly and disassembly, accelerating the centering time, and improving production efficiency.
[0011] Preferably, the inner wall of the bracket is movably installed with the laser alignment device. In this design, the laser alignment device can illuminate the center position with a laser to facilitate user adjustment and can play a guiding role.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The optical fiber drawing furnace annealing tube collimation and centering adjustment device of this utility model, through the setting of shaft frame, screw and hexagonal button, enables the user to conveniently adjust the angle of the centering mechanism by means of the shaft frame, screw and hexagonal button, and can make multi-angle planar adjustment of the centering mechanism according to the actual situation, so as to ensure the practicality of the equipment.
[0014] 2. The optical fiber drawing furnace annealing tube collimation and centering adjustment device of this utility model, through the setting of connecting block, first support block and dovetail groove, enables the connecting block to connect the first support block to the screw, and at the same time prevents the screw from driving the first support block to rotate. The opening of the dovetail groove of the first support block makes the first sliding strip more stable when sliding, and at the same time prevents it from falling off. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings.
[0016] Figure 1 This is a front perspective view of the present invention;
[0017] Figure 2 This is a partial exploded view of this utility model;
[0018] Figure 3 yes Figure 1 Enlarged view of a portion of point A in the middle;
[0019] Figure 4 yes Figure 1 Enlarged view of a section at point B in the middle;
[0020] Figure 5 yes Figure 1 Enlarged view of a section at point C;
[0021] Figure 6 yes Figure 2 Enlarged view of a section at point D.
[0022] Legend:
[0023] 1. Base plate; 2. Mounting hole; 3. Adjustment mechanism; 31. Shaft bracket; 32. Screw; 33. Hexagonal button; 4. Support mechanism; 41. Connecting block; 42. First support block; 43. Dovetail groove; 5. Centering mechanism; 51. First sliding bar; 52. Scale; 53. Support plate; 54. Centering block; 6. Limiting mechanism; 61. Limiting groove; 62. Sliding block; 63. Second support block; 64. Second sliding bar; 7. Positioning mechanism; 71. Insertion hole; 72. Insertion rod; 73. Bracket; 80. Laser alignment instrument; 9. Rectangular limiting hole. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Specific implementation examples are given below.
[0026] like Figures 1 to 6As shown in the embodiment of this utility model, a collimation and centering adjustment device for an annealing tube in an optical fiber drawing furnace includes a base plate 1 and a laser alignment instrument 80. The base plate 1 has mounting holes 2 on its surface and a rectangular limiting hole 9 in the center of its surface. Adjustment mechanisms 3 and support mechanisms 4 are provided on both sides of the top of the base plate 1. A centering mechanism 5 is provided on the inner wall of the first support block 42, and limiting mechanisms 6 are provided on both sides of the top of the base plate 1 away from the adjustment mechanism 3. A positioning mechanism 7 is provided on the top of the base plate 1. The adjustment mechanism 3 includes a shaft bracket 31, a screw 32, and a hexagonal button 33. Two sets of shaft brackets are provided. 31 is fixedly installed on both sides of the top of the base plate 1, horizontally and vertically. The inner wall of the shaft bracket 31 is threadedly installed with the screw 32. The end of the screw 32 away from the base plate 1 is fixedly installed with the hexagonal button 33. The support mechanism 4 includes a connecting block 41, a first support block 42 and a dovetail groove 43. The connecting block 41 is rotatably installed on the end of the screw 32 away from the hexagonal button 33. The end of the connecting block 41 away from the screw 32 is fixedly installed with the first support block 42. The dovetail groove 43 is opened on the side of the first support block 42 away from the connecting block 41. The centering mechanism 5 includes a first sliding bar 51, a scale 52, a support plate 53 and a centering block 54. The first sliding bar 51 is connected to the first support block 42. The first sliding strip 51 is slidably installed on the inner wall of the first support block 42 through the opening of the dovetail groove 43. A scale 52 is provided on the top of the first sliding strip 51. The side of the first sliding strip 51 away from the first support block 42 is fixedly installed with the support plate 53. The end of the support plate 53 away from the first sliding strip 51 is fixedly installed with the centering block 54. There are four sets of support plates 53. The four sets of support plates 53 are fixedly installed in a ring on the surface of the centering block 54. The limiting mechanism 6 includes a limiting groove 61, a sliding block 62, a second support block 63 and a second sliding strip 64. There are two sets of limiting grooves 61. The two sets of limiting grooves 61 are opened on the top of the base plate 1 away from the shaft frame 31. On both sides, the sliding block 62 is slidably installed on the top of the base plate 1 through the opening of the limiting groove 61. The top of the sliding block 62 is fixedly installed with the second support block 63. The inner wall of the second support block 63 is slidably installed with the second sliding strip 64. The side of the second sliding strip 64 away from the second support block 63 is fixedly installed with the support plate 53. The positioning mechanism 7 includes a socket 71, a rod 72 and a bracket 73. The socket 71 is opened on the top of the centering block 54. The rod 72 is movably inserted into the top of the centering block 54 through the opening of the socket 71. The top of the rod 72 is fixedly installed with the bracket 73. The inner wall of the bracket 73 is movably installed with the laser alignment instrument 80.
[0027] like Figures 1 to 6As shown, the combination of the shaft bracket 31, screw 32, and hexagonal button 33 allows the user to easily adjust the angle of the centering mechanism 5. It enables multi-angle planar adjustment of the centering mechanism 5 according to actual conditions, ensuring the practicality of the equipment. The connecting block 41 connects the first support block 42 to the screw 32, while also preventing the screw 32 from driving the first support block 42 to rotate. The dovetail groove 43 of the first support block 42 makes the first sliding strip 51 more stable during sliding and prevents it from falling off. The combination of the first sliding strip 51 and the scale 52 allows the user to observe the adjusted angle in real time for precise calibration. The support plate 53 and... The centering block 54, when used in conjunction with the optical fiber, enables timely alignment during production. The limiting groove 61, the sliding block 62, and the second support block 63 work together to move the centering block 54 according to the push and pull of the opposing screw 32, ensuring stability during adjustment. The second sliding bar 64 slides during the adjustment of the centering block 54 to further ensure stability during adjustment. The socket 71, the insertion rod 72, and the bracket 73 work together to provide stable support for the laser alignment instrument 80, while also enabling quick assembly and disassembly, accelerating alignment time, and improving production efficiency. The laser alignment instrument 80 can illuminate the center position with a laser to facilitate user adjustment and serves as a guide.
[0028] Working principle: During operation, first install the base plate 1 to the usage position, then insert the insertion rod 72 into the inner wall of the centering block 54 through the insertion hole 71. Next, install the laser alignment device 80 onto the inner wall of the bracket 73 and activate the laser alignment device 80 to emit a laser so that the user can clearly observe whether the centering block 54 is in the center position. When adjustment is needed, the user only needs to rotate the two sets of screws 32 to adjust the X and Y axes of the centering block 54. When the user rotates any set of hexagonal buttons 33, the hexagonal buttons 33 will drive the screws 32 to rotate. When the screws 32 rotate, they will move laterally. The movement of the screws 32 will drive the first support block 42 to move through the connecting block 41. When the first support block 42 moves, it will pull the centering block 54 to one side through the first sliding bar 51. When the centering block 54 is pulled, another set of first sliding bars 51 will slide on the inner wall of the first support block 42. At the same time, the second sliding bar 64 will slide in the second support block 63. Following the above steps, the user can move the centering block 54 to any position, thereby achieving the centering effect. When the first support block 42 moves laterally, the second support block 63 opposite to it will slide in the limiting groove 61 through the sliding small block 62 to ensure the stability of the centering block 54 during adjustment. After the centering block 54 is in the center, the user needs to take out the laser alignment instrument 80 and the bracket 73, and finally start the wire drawing process.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A collimation and alignment adjustment device for annealing tubes in an optical fiber drawing furnace, comprising a base plate (1) and a laser alignment instrument (80); characterized in that: The base plate (1) has mounting holes (2) on its surface, a rectangular limiting hole (9) is provided in the middle of the surface of the base plate (1), an adjustment mechanism (3) is provided on both sides of the top of the base plate (1), and a support mechanism (4) is provided on both sides of the top of the base plate (1). The adjustment mechanism (3) includes a shaft frame (31), a screw (32) and a hexagonal button (33). The shaft frame (31) is provided in two sets. The two sets of shaft frames (31) are fixedly installed on the horizontal and vertical sides of the top of the base plate (1). The inner wall of the shaft frame (31) is threaded to the screw (32). The end of the screw (32) away from the base plate (1) is fixedly installed to the hexagonal button (33). The support mechanism (4) includes a connecting block (41), a first support block (42), and a dovetail groove (43). The connecting block (41) is rotatably mounted on the end of the screw (32) away from the hexagonal button (33). The end of the connecting block (41) away from the screw (32) is fixedly mounted to the first support block (42). The dovetail groove (43) is provided on the side of the first support block (42) away from the connecting block (41).
2. The optical fiber drawing furnace annealing tube collimation and centering adjustment device according to claim 1, characterized in that: The inner wall of the first support block (42) is provided with a centering mechanism (5), and the top of the base plate (1) is provided with limit mechanisms (6) on both sides away from the adjustment mechanism (3).
3. The optical fiber drawing furnace annealing tube collimation and centering adjustment device according to claim 2, characterized in that: The top of the base plate (1) is provided with a positioning mechanism (7).
4. The optical fiber drawing furnace annealing tube collimation and centering adjustment device according to claim 3, characterized in that: The centering mechanism (5) includes a first sliding bar (51), a scale (52), a support plate (53), and a centering block (54). The first sliding bar (51) is slidably installed on the inner wall of the first support block (42) through the opening of the dovetail groove (43). A scale (52) is provided on the top of the first sliding bar (51). The side of the first sliding bar (51) away from the first support block (42) is fixedly installed with the support plate (53). The end of the support plate (53) away from the first sliding bar (51) is fixedly installed with the centering block (54). There are four sets of support plates (53), and the four sets of support plates (53) are fixedly installed in a ring on the surface of the centering block (54).
5. The optical fiber drawing furnace annealing tube collimation and centering adjustment device according to claim 4, characterized in that: The limiting mechanism (6) includes a limiting groove (61), a sliding block (62), a second support block (63), and a second sliding bar (64). The limiting groove (61) has two sets, which are located on the top of the base plate (1) away from the shaft frame (31). The sliding block (62) is slidably installed on the top of the base plate (1) through the limiting groove (61). The top of the sliding block (62) is fixedly installed with the second support block (63). The inner wall of the second support block (63) is slidably installed with the second sliding bar (64). The side of the second sliding bar (64) away from the second support block (63) is fixedly installed with the support plate (53).
6. The optical fiber drawing furnace annealing tube collimation and centering adjustment device according to claim 5, characterized in that: The positioning mechanism (7) includes a socket (71), a rod (72), and a bracket (73). The socket (71) is opened on the top of the centering block (54). The rod (72) is movably inserted into the top of the centering block (54) through the opening of the socket (71). The top end of the rod (72) is fixedly installed with the bracket (73).
7. The optical fiber drawing furnace annealing tube collimation and centering adjustment device according to claim 6, characterized in that: The inner wall of the bracket (73) is movably mounted to the laser alignment instrument (80).