Vertical optical fiber preform pickling device

Abstract

The present invention relates to the technical field of optical fiber production equipment, and specifically to a vertical optical fiber preform pickling device, comprising a continuous rotating cleaning device installed above a filter acid storage tank pump station, the continuous rotating cleaning device comprising a pickling box installed above the filter acid storage tank pump station, a lifting and adjusting device installed inside the pickling box, a rotating conveying device provided on the lifting and adjusting device, the rotating conveying device being covered with limit placement tools, a pushing device also installed on the lifting and adjusting device, a plurality of self-rotation adjustment mechanisms installed inside the pickling box, a multi-angle spray rack also installed inside the pickling box, a plurality of staggered nozzles provided on the multi-angle spray rack, and the present application can effectively improve the pickling effect while ensuring the pickling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber production equipment, in particular to a vertical optical fiber preform pickling device. Background Art

[0002] Quartz optical fiber preforms, primarily composed of a pure quartz glass cladding and a germanium-doped quartz glass core, are the core of the optical fiber manufacturing process. To improve the quality of the preform and ensure low loss, it must be treated before drawing and coating. While quartz glass is resistant to many acids, hydrofluoric acid (HF) can easily corrode and polish its surface. One of the most sophisticated surface treatment processes for quartz optical fiber preforms worldwide involves treatment with HF and hydrochloric acid (HCl).

[0003] Chinese patent CN205710436U discloses a vertical pickling apparatus for optical fiber preform rods, comprising a drive motor, a filter acid storage tank pump station, a bottom support, a pickling tank door, a pickling chamber, a rotating shaft bracket, a preform rod tray, bottom support rollers, a supporting rotary disc, and a clamp. The rotating shaft bracket is vertically arranged inside the pickling chamber, the top of the rotating shaft bracket being connected to the output shaft of the drive motor, which is fixedly mounted on the top of the pickling chamber. The bottom of the supporting rotary disc is connected to a plurality of bottom support rollers, which are connected to the inner bottom surface of the pickling chamber and are driven by the drive motor to rotate. The beneficial effects of this utility model are as follows: 1. It increases the specifications of vertical pickling of cleanable preform rods; 2. It is convenient and fast to combine multiple clamps; 3. The interior of the casing can be cleaned from above or below; 4. For shorter preform rods, only the bottom nozzle can be used for spraying, saving energy; 5. It effectively saves acid solution consumption.

[0004] Although the above technical solution can simultaneously vertically fix multiple optical fiber preforms of different lengths for cleaning, this technical solution uses a clamp and a preform tray for fixed flushing, which will result in the position where the clamp and the preform tray interfere with the optical fiber preform being unable to be cleaned, resulting in a cleaning dead angle and affecting the cleaning effect. At the same time, the device cannot clean continuously, and the cleaning equipment needs to be stopped for loading and unloading after the optical fiber preform is cleaned, which greatly affects the cleaning efficiency. Summary of the Invention

[0005] In response to the problems existing in the existing technology, a vertical optical fiber preform pickling device is provided. The continuous rotation cleaning device can continuously pickle and effectively improve the pickling efficiency. At the same time, the pickling angle of the optical fiber preform can be automatically adjusted to effectively improve the pickling efficiency.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] The vertical optical fiber preform pickling device includes a continuous rotating cleaning device installed above the filter acid storage tank pump station. The continuous rotating cleaning device includes a pickling box installed above the filter acid storage tank pump station. A lifting and adjusting device is installed inside the pickling box. A rotating conveying device is provided on the lifting and adjusting device. The rotating conveying device is covered with limit placement devices. A pushing device is also installed on the lifting and adjusting device. Multiple rotation adjustment mechanisms are installed inside the pickling box. A multi-angle spray rack is also installed inside the pickling box. The multi-angle spray rack is provided with a number of staggered nozzles.

[0008] Preferably, a shutter discharge port is provided on the top of the pickling box, an isolation plate is provided in the discharge area of ​​the pickling box, and an air blower is also provided at the position of the shutter discharge port.

[0009] Preferably, the lifting and adjusting device includes several first limiting guide pillars installed inside the pickling box, a lifting and adjusting plate is installed on the first limiting guide pillars, and an adjusting screw is also installed inside the pickling box. The lifting and adjusting plate is installed on the first limiting guide pillars and the adjusting screw, and the lifting and adjusting plate is threadedly connected to the adjusting screw. The lifting and adjusting device also includes a first rotary driver for driving the adjusting screw to rotate.

[0010] Preferably, the rotating conveying device includes a rotating base installed on the lifting and adjusting plate, the rotating base is provided with a plurality of mounting grooves and distributed at equal intervals, the axial position of the mounting groove is provided with a positioning through-hole, and the rotating base is provided with a driven gear ring. The rotating conveying device also includes a second rotating driver installed on the lifting and adjusting plate, and the rotating end of the second rotating driver is provided with a driving wheel, which is meshed with the driven gear ring.

[0011] Preferably, the limiting placement device includes a synchronous adjustment seat installed on a rotating base, a telescopic adjustment frame is provided on the synchronous adjustment seat, and a plurality of telescopic resistance rods are provided at the adjustment end of the synchronous adjustment seat, and the end of the telescopic resistance rod away from the synchronous adjustment seat is connected to the telescopic end of the telescopic adjustment frame.

[0012] Preferably, the synchronous adjustment seat includes a fixed limit seat installed on the rotating base, the fixed limit seat is provided with several limit rails and are evenly distributed, the axial position of the fixed limit seat is provided with a limit through-hole, the fixed limit seat is also provided with several adjustment positioning holes and are evenly distributed at equal intervals, the fixed limit seat is also installed with a rotating adjustment disk, the rotating adjustment disk is provided with several drive bevels and are evenly distributed, the rotating adjustment disk is also provided with positioning through-holes, the side of the rotating adjustment disk is provided with an adjustment handle, and adjustment blocks are installed in the limit rails, and the adjustment blocks are provided with connecting columns, which conflict with the drive bevels.

[0013] Preferably, the telescopic adjustment frame includes several limiting telescopic sleeves installed on the fixed limiting seat, the first limiting adjustment disk is installed on the end of the limiting telescopic sleeve away from the fixed limiting seat, the telescopic adjustment column is installed on the end of the limiting telescopic sleeve away from the limiting telescopic sleeve, the second limiting adjustment disk is installed on the end of the telescopic adjustment column away from the limiting telescopic sleeve, and limiting grooves are provided on the first limiting adjustment disk and the second limiting adjustment disk. The telescopic adjustment frame also includes a threaded adjustment sleeve installed on the fixed limiting seat, the end of the threaded adjustment sleeve away from the fixed limiting seat is installed on the first limiting adjustment disk, and an adjusting screw is also installed on the threaded adjustment sleeve, and the end of the adjusting screw away from the threaded adjustment sleeve is connected to the second limiting adjustment disk.

[0014] Preferably, the telescopic interference rod includes a fixed limit rod installed on the connecting column, a synchronous telescopic rod is installed on the fixed limit rod, the end of the synchronous telescopic rod away from the fixed limit rod is connected to the second limit adjustment disk, and several pressure balls are provided on the synchronous telescopic rod and the fixed limit rod.

[0015] Preferably, the pushing device includes a fixed frame installed at the bottom of the lifting adjustment plate, a limited lifting bracket is installed on the fixed frame, a pressure pushing column is installed on the limited lifting bracket, an elastic contact head is installed on the top of the pressure pushing column, and a pressure sensor is provided on the elastic contact head. The pushing device also includes a linear drive for driving the pressure pushing column to move up and down.

[0016] Preferably, the rotation adjustment mechanism includes a mounting bracket installed on the top of the pickling box, a friction pressure plate is provided on the mounting bracket, and elastic clamps are provided between the friction pressure plate and the mounting bracket.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The rotating conveyor drives the limit placement device to rotate cyclically and rotates the installed optical fiber preform to the multi-angle spray rack position. The filter acid storage tank pump station sprays the pickling liquid onto the optical fiber preform in the limit placement device through the multi-angle spray rack for washing. The washed pickling liquid is guided to the filter acid storage tank pump station through the pickling tank for cyclic filtration. At the same time, the rotating conveyor drives the limit placement device to move, which will cause the optical fiber preform to conflict with the rotation adjustment mechanism. When the optical fiber preform conflicts with the rotation adjustment mechanism, friction will be generated. The optical fiber preform is adjusted by rotation. The friction force of the mechanism generates rotation adjustment, and the cleaning effect is effectively improved by the rotation adjustment angle of the optical fiber preform rod. The rotary conveying device drives the optical fiber preform rod that has been placed in a limited position to circulate and rotate inside the pickling box. When the rotary conveying device transports the cleaned optical fiber preform rod to the discharge area of ​​the pickling box, the pushing device pushes the washed optical fiber preform rod out of the limited placement device to facilitate the discharge robot to clamp and take the material and put it into the waiting area. Then the unwashed optical fiber preform rod is placed in the limited placement device to continue the above steps of cyclic washing, which can continuously pickle the optical fiber preform rod and effectively improve the pickling efficiency.

[0019] 2. When the limit placement device is driven to move by the rotating conveying device, the optical fiber preform will conflict with the rotation adjustment mechanism, which will generate friction. The optical fiber preform will adjust its rotation through the friction of the rotation adjustment mechanism. When the optical fiber preform rotates, the conflict of the limit placement device can be effectively avoided, which will cause the pickling dead corner to be unable to be rinsed, thereby improving the flushing effect of the optical fiber preform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a vertical optical fiber preform pickling device;

[0021] Figure 2 This is a front view of a continuous rotating cleaning device in a vertical optical fiber preform pickling device;

[0022] Figure 3 yes Figure 2 Cross-sectional view at section AA;

[0023] Figure 4 It is a three-dimensional cross-sectional view of a continuous rotating cleaning device in a vertical optical fiber preform pickling device;

[0024] Figure 5 This is a partial structural diagram of a continuous rotating cleaning device in a vertical optical fiber preform pickling device;

[0025] Figure 6 This is a front view of a position limiting device in a vertical optical fiber preform pickling device;

[0026] Figure 7 It is a three-dimensional schematic diagram of a position limiting device in a vertical optical fiber preform pickling device;

[0027] Figure 8 This is an exploded view of the synchronous adjustment seat in the vertical optical fiber preform pickling device;

[0028] Figure 9 It is a three-dimensional schematic diagram of a telescopic interference rod in a vertical optical fiber preform pickling device;

[0029] Figure 10 It is the ejection device of the vertical optical fiber preform pickling device;

[0030] Figure 11 It is a top view of the rotation adjustment mechanism in the vertical optical fiber preform pickling device.

[0031] The numbers in the figure are:

[0032] A1-fiber preform; 1-filter acid storage tank pump station; 2-pickling box; 21-isolation plate; 22-air blowing head; 23-shutter discharge port; 3-lifting adjustment device; 31-first limit guide pillar; 32-adjusting screw; 33-first rotary drive; 34-lifting adjustment plate; 4-rotating conveying device; 41-rotating base; 42-driven gear ring; 43-second rotary drive; 44-driving wheel; 5-limiting placement device; 51-synchronous adjustment seat; 511-fixed limit seat; 5112-adjusting positioning hole; 5113-limiting perforation; 512-rotating adjustment disk; 5121-driving chute; 5122-adjusting handle; 5123-positioning perforation Hole; 513-adjustment block; 5131-connecting column; 52-telescopic adjustment frame; 521-limit telescopic sleeve; 522-telescopic adjustment column; 523-first limit adjustment disk; 524-threaded adjustment sleeve; 525-adjusting screw; 526-second limit adjustment disk; 53-telescopic resistance rod; 531-fixed limit rod; 532-synchronous telescopic rod; 533-pressure ball; 6-push-up device; 61-fixed frame; 62-limit lifting bracket; 63-pressure pushing column; 631-elastic resistance head; 64-linear drive; 7-rotation adjustment mechanism; 71-mounting bracket; 72-friction pressure plate; 73-elastic clamp; 8-multi-angle spray rack. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 11 As shown:

[0035] The vertical optical fiber preform pickling device includes a continuous rotating cleaning device installed above the filter acid storage tank pump station 1. The continuous rotating cleaning device includes a pickling box 2 installed above the filter acid storage tank pump station 1. A lifting and adjusting device 3 is installed inside the pickling box 2. A rotating conveying device 4 is provided on the lifting and adjusting device 3. The rotating conveying device 4 is covered with limiting placement devices 5. A pushing device 6 is also installed on the lifting and adjusting device 3. Multiple rotation adjustment mechanisms 7 are installed inside the pickling box 2. A multi-angle spray rack 8 is also installed inside the pickling box 2. The multi-angle spray rack 8 is provided with a plurality of staggered nozzles.

[0036] The staff opens the pickling box 2 and adjusts the limit size of the limit placement device 5 according to the length and axis diameter of the optical fiber preform A1. The staff adjusts the limit placement device 5 to a suitable height through the lifting adjustment device 3 so that the optical fiber preform A1 placed in the limit placement device 5 can interfere with the rotation adjustment mechanism 7. After the limit placement device 5 is adjusted, the optical fiber preform A1 is inserted into the limit placement device 5 inside the pickling box 2 through the unloading robot. After the optical fiber preform A1 is inserted into the limit placement device 5, it is in contact with the push-up device. 6. After the push-up device 6 detects the optical fiber preform A1, the unloading robot releases the optical fiber preform A1, and the push-up device 6 descends to place the optical fiber preform A1 into the limiting placement device 5. The rotary conveyor 4 drives the limiting placement device 5 to rotate cyclically and rotates the installed optical fiber preform A1 to the position of the multi-angle spraying rack 8. The filter acid storage tank pump station 1 sprays the acid washing liquid onto the optical fiber preform A1 in the limiting placement device 5 through the multi-angle spraying rack 8 for washing. The washing acid washing liquid passes through The pickling box 2 is guided and transported to the filter acid storage tank pump station 1 for circulating filtration. At the same time, when the rotating conveying device 4 drives the limiting placement device 5 to move, the optical fiber preform A1 will collide with the rotation adjustment mechanism 7, so that friction will be generated when the optical fiber preform A1 conflicts with the rotation adjustment mechanism 7. The optical fiber preform A1 is adjusted to rotate by the friction of the rotation adjustment mechanism 7. The rotation adjustment angle of the optical fiber preform A1 is effectively improved to improve the cleaning effect. The rotating conveying device 4 drives the optical fiber preform A1 with the limited placement to circulate and rotate inside the pickling box 2. When the rotating conveying device 4 transports the cleaned optical fiber preform A1 to the discharge area of ​​the pickling box 2, the pushing device 6 pushes the washed optical fiber preform A1 out of the limiting placement device 5 to facilitate the discharge robot to clamp and take the material and put it into the waiting area, and then the unwashed optical fiber preform A1 is placed in the limiting placement device 5 to continue the above steps for cyclic washing. This application can effectively improve the pickling effect while ensuring the pickling efficiency.

[0037] like Figure 3 and Figure 4 As shown:

[0038] A shutter discharge port 23 is provided on the top of the pickling box 2 , an isolation plate 21 is provided in the discharge area of ​​the pickling box 2 , and an air blowing head 22 is also provided at the position of the shutter discharge port 23 .

[0039] The shutter discharge port 23 on the top of the pickling box 2 is coaxially arranged with the limiting placement device 5. When the optical fiber preform A1 needs to be placed, the shutter discharge port 23 on the top of the pickling box 2 is opened, and the optical fiber preform A1 is moved to the axial position of the shutter discharge port 23 by the discharge robot. When the optical fiber preform A1 is inserted, the optical fiber preform A1 is accurately inserted into the limiting placement device 5. The isolation plate 21 inside the pickling box 2 can effectively isolate the pickling liquid to facilitate the removal and placement of the optical fiber preform A1. The air blower 22 inside the pickling box 2 is used to air-dry the rinsed optical fiber preform A1 to prevent the pickling liquid from sticking to the optical fiber preform A1 during unloading.

[0040] like Figure 4 and Figure 5 As shown:

[0041] The lifting and adjusting device 3 includes several first limiting guide columns 31 installed inside the pickling box 2, and a lifting and adjusting plate 34 is installed on the first limiting guide columns 31. An adjusting screw 32 is also installed inside the pickling box 2. The lifting and adjusting plate 34 is installed on the first limiting guide columns 31 and the adjusting screw 32. The lifting and adjusting plate 34 is threadedly connected to the adjusting screw 32. The lifting and adjusting device 3 also includes a first rotary driver 33 for driving the adjusting screw 32 to rotate.

[0042] The first rotary driver 33 is preferably a servo motor. The staff opens the pickling box 2 and adjusts the limit size of the limit placement device 5 according to the length and shaft diameter of the optical fiber preform A1. Since the lengths of the optical fiber preform A1 are different, in order to make the optical fiber preform A1 placed in the limit placement device 5 conflict with the rotation adjustment mechanism 7, it is necessary to adjust the height of the limit placement device 5. The servo motor drives the driving adjustment screw 32 to rotate. When the adjustment screw 32 rotates, it drives the lifting adjustment plate 34 to move up and down along the first limit guide column 31. When the lifting adjustment plate 34 moves, it drives the rotary conveying device 4 and the limit placement device 5 to adjust the height synchronously, thereby effectively controlling the height of the optical fiber preform A1 to conflict with the rotation adjustment mechanism 7.

[0043] like Figure 4 and Figure 5 As shown:

[0044] The rotating conveying device 4 includes a rotating base 41 installed on the lifting adjustment plate 34. The rotating base 41 is provided with a plurality of mounting grooves that are evenly spaced. A positioning through-hole 5123 is provided at the axial center position of the mounting groove. A driven ring gear 42 is sleeved on the rotating base 41. The rotating conveying device 4 also includes a second rotating driver 43 installed on the lifting adjustment plate 34. The rotating end of the second rotating driver 43 is provided with a driving wheel 44, which is meshed with the driven ring gear 42.

[0045] The second rotary driver 43 is preferably a servo motor, which needs to accurately drive the limiting placement device 5 to rotate and adjust the position so that the optical fiber preform A1 can be circulated and rinsed inside the pickling box 2. The servo motor drives the driving wheel 44 to rotate. When the driving wheel 44 rotates, it drives the driven ring gear 42 to rotate. When the driven ring gear 42 rotates, it drives the rotating base 41 to rotate and adjust on the lifting adjustment plate 34. The servo motor can accurately control the rotation position according to the number of revolutions of the driving wheel 44, effectively ensuring the position where the optical fiber preform A1 moves and stays.

[0046] like Figure 5 and Figure 6 As shown:

[0047] The limiting placement device 5 includes a synchronous adjustment seat 51 installed on the rotating base 41, and a telescopic adjustment frame 52 is provided on the synchronous adjustment seat 51. The adjustment end of the synchronous adjustment seat 51 is provided with several telescopic resistance rods 53, and the end of the telescopic resistance rod 53 away from the synchronous adjustment seat 51 is connected to the telescopic end of the telescopic adjustment frame 52.

[0048] The staff adjusts the height of the telescopic adjustment frame 52 according to the length of the optical fiber preform A1. When the telescopic adjustment frame 52 is telescopically adjusted, the telescopic interference rod 53 is adjusted synchronously to control the limit height. The staff then synchronously adjusts the distance between the telescopic interference rods 53 through the synchronous adjustment seat 51 according to the axial diameter of the optical fiber preform A1, which can limit the optical fiber preform A1 with different axes, effectively improving the adaptability of the limit placement of the optical fiber preform A1.

[0049] like Figure 6 and Figure 8 As shown:

[0050] The synchronous adjustment seat 51 includes a fixed limit seat 511 installed on the rotating base 41, and several limit rails are provided on the fixed limit seat 511 and are evenly distributed. A limit through-hole 5113 is provided at the axial position of the fixed limit seat 511, and several adjustment positioning holes 5112 are also provided on the fixed limit seat 511 and are evenly distributed at equal intervals. A rotating adjustment disk 512 is also installed on the fixed limit seat 511, and several driving inclined grooves 5121 are provided on the rotating adjustment disk 512 and are evenly distributed. The rotating adjustment disk 512 is also provided with positioning through-holes 5123, and an adjustment handle 5122 is provided on the side of the rotating adjustment disk 512. Adjustment blocks 513 are installed in the limit rails, and a connecting column 5131 is provided on the adjustment block 513, which conflicts with the driving inclined groove 5121.

[0051] The staff adjusts the height of the telescopic adjustment frame 52 according to the length of the optical fiber preform A1. When the telescopic adjustment frame 52 is telescopically adjusted, the telescopic interference rod 53 is adjusted synchronously to control the limit height. When the staff adjusts the distance between the telescopic interference rods 53 according to the axial diameter of the optical fiber preform A1, the staff holds the adjustment handle 5122 of the rotary adjustment disk 512, and rotates the adjustment handle 5122 to drive the rotary adjustment disk 512 to rotate. When the rotary adjustment disk 512 rotates, it drives the multiple connecting columns 5131 to move synchronously through the driving inclined slot 5121, and the adjustment block 513 cooperates The limiting rail can limit the direction of movement of the connecting column 5131, so that the connecting column 5131 moves toward the axial position of the fixed limiting seat 511. When the connecting column 5131 moves, it will drive the telescopic interference rod 53 to shrink and adjust synchronously. After the telescopic interference rod 53 is adjusted, the staff will pass a bolt through the positioning through-hole 5123 of the rotating adjustment disk 512 and thread it with the adjustment positioning hole 5112 of the fixed limiting seat 511, so that the rotating adjustment disk 512 is locked and fixed, which can effectively adjust the distance between the telescopic interference rods 53 synchronously, so as to adapt to the limiting of non-coaxial optical fiber preform rods A1.

[0052] like Figure 6 and Figure 7 As shown:

[0053] The telescopic adjustment frame 52 includes several limiting telescopic sleeves 521 installed on the fixed limiting seat 511, and the first limiting adjustment disk 523 is installed on the end of the limiting telescopic sleeve 521 away from the fixed limiting seat 511. The telescopic adjustment column 522 is installed on each limiting telescopic sleeve 521, and the second limiting adjustment disk 526 is installed on the end of the telescopic adjustment column 522 away from the limiting telescopic sleeve 521. The first limiting adjustment disk 523 and the second limiting adjustment disk 526 are both provided with limiting grooves. The telescopic adjustment frame 52 also includes a threaded adjustment sleeve 524 installed on the fixed limiting seat 511, and the end of the threaded adjustment sleeve 524 away from the fixed limiting seat 511 is installed on the first limiting adjustment disk 523. An adjusting screw 525 is also installed on the threaded adjustment sleeve 524, and the end of the adjusting screw 525 away from the threaded adjustment sleeve 524 is connected to the second limiting adjustment disk 526.

[0054] When adjusting the height limit of the telescopic adjustment frame 52 according to the length of the optical fiber preform A1, the threaded adjustment sleeve 524 is rotatably mounted on the fixed limit seat 511 and the first limit adjustment disk 523. The staff rotates the threaded adjustment sleeve 524, which can adjust the length of the adjustment screw 525. When the adjustment screw 525 contracts, it drives the second limit adjustment disk 526 to move toward the first limit adjustment disk 523. The telescopic limit sleeve 521 and the telescopic adjustment column 522 cooperate to effectively limit and guide the movement of the second limit adjustment disk 526, ensuring the stability of the lifting and lowering adjustment. When the second limit adjustment disk 526 moves, it simultaneously drives the telescopic interference rod 53 to contract and adjust the height. This effectively controls the height limit of the telescopic interference rod 53.

[0055] like Figure 6 and Figure 9 As shown:

[0056] The telescopic interference rod 53 includes a fixed limit rod 531 installed on the connecting column 5131, and a synchronous telescopic rod 532 is installed on the fixed limit rod 531. The end of the synchronous telescopic rod 532 away from the fixed limit rod 531 is connected to the second limit adjustment disk 526, and a plurality of pressure balls 533 are provided on the synchronous telescopic rod 532 and the fixed limit rod 531.

[0057] The staff needs to adjust the length of the synchronous telescopic rod 532 according to the length of the optical fiber preform A1. The staff rotates the threaded adjustment sleeve 524. When the threaded adjustment sleeve 524 is rotated, the length of the adjusting screw 525 can be adjusted and retracted. When the adjusting screw 525 contracts, it drives the second limit adjustment disk 526 to contract and move toward the first limit adjustment disk 523. The limit telescopic sleeve 521 and the telescopic adjustment column 522 cooperate to effectively limit and guide the second limit adjustment disk 526 to move and adjust. When the second limit adjustment disk 526 moves, it will drive the synchronous telescopic rod 532 to contract and adjust the height inside the fixed limit rod 531, which can effectively control the limit height. The staff then adjusts the position of the synchronous telescopic rod 532 and the fixed limit rod 531 according to the axial diameter of the optical fiber preform A1. The staff holds the adjusting handle 5122 of the rotating adjustment disk 512, and after rotating the adjusting handle 5122, the rotating adjustment disk 512 is driven to rotate. When the disk 512 rotates, the driving inclined slot 5121 drives several connecting columns 5131 to move synchronously. The adjusting block 513 cooperates with the limiting rail to limit the direction of movement of the connecting column 5131, so that the connecting column 5131 moves toward the axial position of the fixed limiting seat 511. When the connecting column 5131 moves, it will drive the synchronous telescopic rod 532 and the fixed limiting rod 531 to shrink and adjust synchronously. After the synchronous telescopic rod 532 and the fixed limiting rod 531 are adjusted, the staff will pass the bolt through the positioning through-hole 5123 of the rotating adjustment disk 512 and thread it into the adjustment positioning hole 5112 of the fixed limiting seat 511 to lock the rotating adjustment disk 512. When the optical fiber preform A1 is placed on the multiple adjusted synchronous telescopic rods 532 and the fixed limiting rod 531, the pressing balls 533 on the telescopic rod and the fixed limiting rod 531 are used to contact the optical fiber preform A1, so that the optical fiber preform A1 can rotate and adjust when it conflicts with the rotation adjustment mechanism 7.

[0058] like Figure 3 and Figure 10 As shown:

[0059] The pushing device 6 includes a fixed frame 61 installed at the bottom of the lifting adjustment plate 34, a limited lifting bracket 62 is installed on the fixed frame 61, a pressure pushing column 63 is installed on the limited lifting bracket 62, an elastic contact head 631 is installed on the top of the pressure pushing column 63, and a pressure sensor is provided on the elastic contact head 631. The pushing device 6 also includes a linear driver 64 that drives the pressure pushing column 63 to move up and down.

[0060] The linear drive 64 is preferably an electric push rod. When the optical fiber preform A1 needs to be unloaded after the pickling is completed, the electric push rod pushes the lifting bracket to move upward. When the lifting bracket moves upward, it pushes the pressing and pushing column 63 to pass through the lifting adjustment plate 34 and the fixed limit seat 511 in sequence, so that the elastic contact head 631 of the pressing and pushing column 63 contacts the bottom of the optical fiber preform A1 and pushes the optical fiber preform A1 to rise. The rising optical fiber preform A1 is convenient for the unloading robot to clamp the optical fiber preform A1 After the pickled optical fiber preform A1 is removed, the unloading robot inserts it into the limiting placement device 5 inside the pickling tank 2. The bottom of the optical fiber preform A1 contacts the elastic contact head 631 of the pressing and pushing pin 63. When the elastic contact head 631 contacts, the pressure sensor detects the contact. The unloading robot releases the optical fiber preform A1, and the pressing and pushing pin 63 drives the optical fiber preform A1 downward, placing it in the limiting placement device 5. This effectively assists in placing the optical fiber preform A1, improving the convenience of loading and unloading.

[0061] like Figure 3 and Figure 11 As shown:

[0062] The rotation regulating mechanism 7 includes a mounting bracket 71 mounted on the top of the pickling box 2 . A friction pressing plate 72 is provided on the mounting bracket 71 . An elastic snap ring 73 is provided between the friction pressing plate 72 and the mounting bracket 71 .

[0063] The optical fiber preform A1 is placed in the limiting placement device 5, and the rotating conveying device 4 drives the limiting placement device 5 to rotate cyclically to rotate the installed optical fiber preform A1 to the position of the multi-angle spray rack 8 for spraying and washing. When the rotating conveying device 4 drives the limiting placement device 5 to move, the optical fiber preform A1 will be in conflict with the friction pressure plate 72. The friction pressure plate 72 makes the friction surface and the side of the optical fiber preform A1 rub against each other through the elastic clamping ring 73. When the optical fiber preform A1 moves and conflicts with the friction pressure plate 72, the optical fiber preform A1 will rotate. The rotation of the optical fiber preform A1 can effectively avoid the conflict of the limiting placement device 5, which will cause the pickling dead corner to be unable to be washed, thereby improving the washing effect of the optical fiber preform A1.

[0064] Specific working principle:

[0065] The staff opens the pickling box 2 and adjusts the limiting size of the limiting placement device 5 according to the length and axis diameter of the optical fiber preform A1, and adjusts the limiting placement device 5 to an appropriate height through the lifting and adjusting device 3 so that the optical fiber preform A1 placed in the limiting placement device 5 can conflict with the rotation adjusting mechanism 7. After the limiting placement device 5 is adjusted, the optical fiber preform A1 is inserted into the limiting placement device 5 inside the pickling box 2 by the discharging robot. After the optical fiber preform A1 is inserted into the limiting placement device 5, it conflicts with the pushing device 6. After the pushing device 6 detects the optical fiber preform A1, the discharging robot releases the optical fiber preform A1, and the pushing device 6 descends to place the optical fiber preform A1 into the limiting placement device 5. The rotating conveying device 4 drives the limiting placement device 5 to rotate cyclically and rotates the installed optical fiber preform A1 to the position of the multi-angle spraying rack 8. The filter acid storage tank pump station 1 sprays the acid cleaning liquid onto the optical fiber preform A1 in the limiting placement device 5 through the multi-angle spraying rack 8. The cleaning effect is effectively improved by adjusting the rotation angle of the optical fiber preform A1. The optical fiber preform A1 is adjusted by the friction force of the self-rotation adjusting mechanism 7. The cleaning effect is effectively improved by adjusting the rotation angle of the optical fiber preform A1. The rotating conveyor 4 drives the optical fiber preform A1 with limited placement to circulate and rotate inside the acid cleaning box 2. When the rotating conveyor 4 conveys the cleaned optical fiber preform A1 to the discharge area of ​​the acid cleaning box 2, the pushing device 6 pushes the washed optical fiber preform A1 out of the limited placement device 5 to facilitate the discharge robot to grip and take the material and put it into the waiting area. Then the unwashed optical fiber preform A1 is put into the limited placement device 5 to continue the above steps of cyclic flushing.

[0066] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A vertical optical fiber preform pickling device, comprising a continuous rotating cleaning device installed above a filter acid storage tank pump station (1), characterized in that: The continuous rotary cleaning device comprises a pickling box (2) installed above a filter acid storage tank pump station (1); a lifting and adjusting device (3) is installed inside the pickling box (2); a rotary conveying device (4) is provided on the lifting and adjusting device (3); the rotary conveying device (4) is covered with position limiting devices (5); a push-up device (6) is also installed on the lifting and adjusting device (3); a plurality of self-rotation adjusting mechanisms (7) are installed inside the pickling box (2); a multi-angle spraying rack (8) is also installed inside the pickling box (2); and a plurality of staggered spraying heads are provided on the multi-angle spraying rack (8); The lifting and adjusting device (3) comprises a plurality of first limiting guide pillars (31) installed inside the pickling box (2), and a lifting and adjusting plate (34) is installed on the first limiting guide pillars (31); The rotary conveying device (4) includes a rotary base (41) mounted on a lifting and adjusting plate (34); The position limiting placement device (5) comprises a synchronous adjustment seat (51) mounted on a rotating base (41), a telescopic adjustment frame (52) being provided on the synchronous adjustment seat (51), a plurality of telescopic contact rods (53) being provided at the adjustment end of the synchronous adjustment seat (51), and an end of the telescopic contact rod (53) away from the synchronous adjustment seat (51) being connected to the telescopic end of the telescopic adjustment frame (52); The synchronous adjustment seat (51) comprises a fixed limiting seat (511) mounted on the rotating base (41), wherein the fixed limiting seat (511) is provided with a plurality of limiting rails and is evenly distributed, a limiting through-hole (5113) is provided at the axis position of the fixed limiting seat (511), and a plurality of adjustment positioning holes (5112) are also provided on the fixed limiting seat (511) and are evenly distributed at equal intervals, a rotating adjustment disk (512) is also mounted on the fixed limiting seat (511), a plurality of driving inclined slots (5121) are evenly distributed on the rotating adjustment disk (512), a positioning through-hole (5123) is also provided on the rotating adjustment disk (512), and an adjustment handle (5122) is provided on the side of the rotating adjustment disk (512), and an adjustment block (513) is mounted in each of the limiting rails, and a connecting column (5131) is provided on the adjusting block (513), and the connecting column (5131) conflicts with the driving inclined slot (5121); The telescopic adjustment frame (52) includes a plurality of limit telescopic sleeves (521) mounted on a fixed limit seat (511), a first limit adjustment disk (523) being mounted on one end of the limit telescopic sleeve (521) away from the fixed limit seat (511), a telescopic adjustment column (522) being mounted on each of the limit telescopic sleeves (521), a second limit adjustment disk (526) being mounted on one end of the telescopic adjustment column (522) away from the limit telescopic sleeve (521), and the first limit adjustment disk (523) and the second limit adjustment disk (523) being mounted on each of the limit telescopic sleeves (521). The limit adjustment disk (526) is provided with a limit groove. The telescopic adjustment frame (52) further comprises a threaded adjustment sleeve (524) mounted on the fixed limit seat (511). One end of the threaded adjustment sleeve (524) away from the fixed limit seat (511) is mounted on the first limit adjustment disk (523). An adjusting screw (525) is further mounted on the threaded adjustment sleeve (524). One end of the adjusting screw (525) away from the threaded adjustment sleeve (524) is connected to the second limit adjustment disk (526). The telescopic interference rod (53) includes a fixed limiting rod (531) installed on the connecting column (5131), a synchronous telescopic rod (532) is installed on the fixed limiting rod (531), and one end of the synchronous telescopic rod (532) away from the fixed limiting rod (531) is connected to the second limiting adjustment disk (526), ​​and a plurality of pressing balls (533) are provided on the synchronous telescopic rod (532) and the fixed limiting rod (531).

2. The vertical optical fiber preform pickling device according to claim 1, characterized in that: The top of the pickling box (2) is provided with a shutter discharge port (23), the discharge area of ​​the pickling box (2) is provided with an isolation plate (21), and the position of the shutter discharge port (23) is also provided with an air blowing head (22).

3. The vertical optical fiber preform pickling device according to claim 2, characterized in that: An adjusting screw (32) is also installed inside the pickling box (2), a lifting adjustment plate (34) is installed on the first limiting guide column (31) and the adjusting screw (32), the lifting adjustment plate (34) is threadedly connected to the adjusting screw (32), and the lifting adjustment device (3) also includes a first rotary driver (33) for driving the adjusting screw (32) to rotate.

4. The vertical optical fiber preform pickling device according to claim 3, characterized in that: The rotating base (41) is provided with a plurality of mounting grooves which are distributed at equal intervals. A positioning through-hole (5123) is provided at the axis position of the mounting groove. A driven gear ring (42) is sleeved on the rotating base (41). The rotating conveying device (4) further comprises a second rotating driver (43) mounted on the lifting adjustment plate (34). A driving wheel (44) is provided at the rotating end of the second rotating driver (43), and the driving wheel (44) is meshed with the driven gear ring (42).

5. The vertical optical fiber preform pickling device according to claim 4, characterized in that: The ejection device (6) comprises a fixed frame (61) mounted on the bottom of the lifting adjustment plate (34), a limited lifting bracket (62) mounted on the fixed frame (61), a pressing and pushing column (63) mounted on the limited lifting bracket (62), an elastic contact head (631) mounted on the top of the pressing and pushing column (63), and a pressure sensor provided on the elastic contact head (631). The ejection device (6) further comprises a linear driver (64) for driving the pressing and pushing column (63) to move upward and downward.

6. The vertical optical fiber preform pickling device according to claim 5, characterized in that: The rotation regulating mechanism (7) comprises a mounting bracket (71) mounted on the top of the pickling box (2); a friction pressing plate (72) is provided on the mounting bracket (71); and elastic snap rings (73) are provided between the friction pressing plate (72) and the mounting bracket (71).

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