CN221479785U - Equipment for synthesizing quartz tube - Google Patents

Abstract

The utility model discloses equipment for preparing a synthetic quartz tube, which relates to the field of synthesis of quartz tubes and comprises a rod hanging assembly, wherein a first air chuck is rotationally connected in the middle of an inner cavity of the rod hanging assembly, a heating furnace is arranged at the lower part of the first air chuck, a caliper in the furnace is symmetrically and fixedly connected to the middle of the left side and the right side of the heating furnace, driving assemblies are symmetrically and fixedly connected to the left side and the right side of the bottom of the heating furnace, a second air chuck is rotationally connected in the middle of the inner cavities of two mounting racks, a base is fixedly connected to the bottom of the driving assemblies, and a quartz tube inner hole sealing assembly is fixedly connected to the top of the base. According to the equipment for synthesizing the quartz tube and the synthesis method thereof, the quartz tube with the expected size is prepared by longitudinally drawing and rotating the heated main tube, the quartz tube has low hydroxyl content and high dimensional accuracy, and the equipment is very suitable for the base tube used by the MCVD, PCVD and other processes in the preparation process of G.654.E and special optical fibers.

Description

Equipment for synthesizing quartz tube

Technical Field

The utility model relates to the field of synthesis of quartz tubes, in particular to equipment for synthesizing a quartz tube.

Background

CN106316082a describes a method for controlling the dimensional accuracy of a quartz tube, which is used for improving the dimensional stability of the quartz tube such as the offset wall degree, the out-of-roundness and the like, but the method has more requirements on the size of a base metal, the production process requirement and the control.

In US5026413, in order to stabilize the size of a quartz tube, a non-contact quartz tube preparation device and a method for controlling the pressure in the tube are introduced, and three ways of liquid sealing, plug sealing and pressure cabin sealing are designed, wherein the three ways have problems more or less, for example, the plug sealing scheme easily causes scratches and pollution on the inner wall of the quartz tube, and the convenience of the pressure cabin and the liquid sealing is insufficient when the pressure cabin and the liquid sealing are operated by space-limited personnel, so that the automatic operation is not facilitated.

Therefore, it is necessary to provide an apparatus for synthesizing a quartz tube and a synthesizing method thereof to solve the above problems.

Disclosure of utility model

The utility model mainly aims to provide equipment for synthesizing a quartz tube, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The equipment for synthesizing the quartz tube comprises a rod hanging assembly, wherein a first air chuck is rotationally connected to the center of an inner cavity of the rod hanging assembly, a heating furnace is arranged at the lower part of the first air chuck, furnace diameter measuring devices are symmetrically and fixedly connected to the centers of the left side and the right side of the heating furnace, and furnace diameter measuring devices are fixedly connected to the front surface of the bottom of the heating furnace;

The left side and the right side of the bottom of the heating furnace are symmetrically and fixedly connected with driving components, the top and the bottom of the opposite sides of the two driving components are symmetrically and movably connected with mounting frames, and the centers of the inner cavities of the two mounting frames are symmetrically and rotatably connected with second pneumatic chucks;

The bottom fixedly connected with base of drive assembly, the top fixedly connected with quartz capsule hole seal assembly of base, the positive fixedly connected with supporting shoe of base bottom, the back swing joint of supporting shoe has the cutting knife, the bottom of base is provided with the transportation dolly.

Preferably, the outer wall fixedly connected with fixed column of hanging rod subassembly, the fixed column has three, and three the bottom symmetry fixed connection of fixed column is at the top of hanging rod subassembly, the centre fixedly connected with gear ring of first air chuck outer wall.

Preferably, the front surface of the inner cavity of the hanging rod assembly is rotationally connected with a gear, the center of the top of the gear is fixedly connected with a first servo motor through a first rotating shaft, the first servo motor is fixedly connected in the inner cavity of the hanging rod assembly, the gear is meshed with a gear ring, and two opposite sides of the in-furnace caliper symmetrically extend into the inner cavity of the heating furnace.

Preferably, the centers of two opposite sides of the driving assembly are symmetrically provided with notches, the inner cavities of the two notches are symmetrically and rotationally connected with screw rods, the tops of the two screw rods are symmetrically and fixedly connected with second servo motors through second rotating shafts, and the two second servo motors are symmetrically and fixedly connected with the centers of the tops of the inner cavities of the two driving assemblies.

Preferably, the top the centre swing joint in the inner chamber of left side notch and threaded connection at the outer wall of left side lead screw in the mounting bracket left side, the bottom the centre swing joint in the inner chamber of right side notch and threaded connection at the outer wall of right side lead screw in the mounting bracket right side, two the centre symmetry fixedly connected with bearing in mounting bracket inner chamber, the second air chuck is installed in the inner chamber of bearing.

Preferably, the front and back symmetrical fixedly connected with limit sliding blocks on the left side and the right side of the mounting frame, the guide grooves are symmetrically formed in the centers of the front and the back of the driving assembly, the first guide posts are symmetrically and fixedly connected in the centers of the inner cavities of the guide grooves, and the limit sliding blocks are movably connected in the inner cavities of the guide grooves and sleeved on the outer walls of the first guide posts.

Preferably, the magnetic fluid suspension block is arranged in the middle of the quartz tube inner hole sealing assembly, support columns are symmetrically and fixedly connected to the periphery of the bottom of the base, universal wheels are symmetrically and fixedly connected to the periphery of the bottom of the transfer trolley, and a round groove is formed in the top of the transfer trolley.

Preferably, the back fixedly connected with knife rest of cutting knife, the left and right sides symmetry fixedly connected with movable block at knife rest top, the right side fixedly connected with linear electric motor at base portion back, linear electric motor and right side movable block electric connection, the left back fixedly connected with second guide post of base bottom, left side the movable block cover is established at the outer wall of second guide post, the back fixedly connected with of base bottom bumps the breaking device.

A method of synthesizing an apparatus for synthesizing a quartz tube, said method comprising the steps of:

s1: preparing a mother tube of a quartz tube for synthesis, placing the top of the mother tube in an inner cavity of a first air chuck, starting the first air chuck, clamping the top of the mother tube, enabling the bottom of the mother tube to enter the inner cavity of a gear ring, and simultaneously starting two second air chucks, and clamping the bottom of the mother tube;

S2: starting a gear ring to clamp a main pipe, starting a first servo motor to drive a gear to rotate, meshing with the gear ring when the gear rotates, and driving a first air chuck to rotate at the moment, wherein the main pipe rotates at the moment, and two second air chucks at the bottom rotate in an inner cavity of a mounting frame;

S3: starting two second servo motors to drive two screw rods to rotate in inner cavities of two driving assemblies, wherein at the moment, the two mounting frames can move up and down on one side opposite to the two driving assemblies, the mother pipe is stretched while rotating, and in the stretching process, the first air chuck moves to the heating furnace according to a set speed in the pressure control stretching process of the mother pipe through the inner hole sealing assembly of the quartz pipe and the first air chuck;

S4: controlling the outer diameter and the wall thickness of the main pipe by adjusting the moving speed and the pressure control of the first pneumatic chuck and the second pneumatic chuck, and detecting the size of the main pipe by the inside diameter gauge and the outside diameter gauge;

s5: at this moment, the finished quartz tube can extend to the bottom of base, starts linear motor for the movable block can drive the cutting knife and move forward, so that can cut the processing with the finished quartz tube through the cutting knife, the quartz tube after the cutting can fall into and transport the dolly department and carry out subsequent transportation work.

Advantageous effects

Compared with the prior art, the utility model provides equipment for synthesizing a quartz tube and a synthesis method thereof, and the equipment has the following beneficial effects:

1. According to the equipment for synthesizing the quartz tube and the preparation method thereof, the quartz tube with the expected size is generated by longitudinally drawing and rotating the heated main tube, and the quartz tube has low hydroxyl content and high size precision, and is very suitable for the base tubes used in the processes of MCVD, PCVD and the like in the preparation process of G.654.E and special optical fibers.

2. According to the equipment for synthesizing the quartz tube and the preparation method thereof, the main tube is in a rotary heated state through the rotatable first air chuck and the gear ring, the problem of uneven radial heating of the main tube is solved, the offset wall degree and the out-of-roundness of the quartz tube can be effectively reduced, friction between the sealing device and the inner wall of the quartz tube can be reduced through magnetic fluid sealing through the arranged inner hole sealing component of the quartz tube, pressure control can be realized, the inner wall is not damaged, and meanwhile, automatic cutting and transferring operation of a final product can be realized by means of the automatic cutting and transferring device.

Drawings

FIG. 1 is a schematic view of the front face of the present utility model;

FIG. 2 is a schematic view of a first air chuck according to the present utility model;

FIG. 3 is a schematic view of the structure of the mounting bracket of the present utility model;

FIG. 4 is a schematic view of the structure of the cutting blade of the present utility model;

FIG. 5 is a schematic view of the inner bore seal assembly of the quartz tube of the present utility model.

In the figure: 1. a rod hanging assembly; 2. fixing the column; 3. a first air chuck; 4. a gear ring; 5. a gear; 6. a first servo motor; 7. a heating furnace; 8. an in-furnace caliper; 9. an external caliper; 10. a drive assembly; 11. a mounting frame; 12. a second air chuck; 13. a second servo motor; 14. a guide groove; 15. a first guide post; 16. a limit sliding block; 17. a base; 18. a quartz tube inner hole sealing assembly; 19. a magnetic fluid suspension block; 20. a support block; 21. a cutting knife; 22. a tool holder; 23. a movable block; 24. a linear motor; 25. a second guide post; 26. a support column; 27. a transfer trolley; 28. and a screw rod.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-5, the device for synthesizing the quartz tube comprises a hanging rod assembly 1, wherein a first air chuck 3 is rotationally connected with the center of an inner cavity of the hanging rod assembly 1, a heating furnace 7 is arranged at the lower part of the first air chuck 3, a caliper 8 is symmetrically and fixedly connected with the center of the left side and the right side of the heating furnace 7, a caliper 9 is fixedly and fixedly connected with the front side of the bottom of the heating furnace 7, a driving assembly 10 is symmetrically and fixedly connected with the left side and the right side of the bottom of the heating furnace 7, a mounting frame 11 is symmetrically and movably connected with the top and the bottom of the opposite sides of the two driving assemblies 10, a second air chuck 12 is rotationally connected with the center of the inner cavities of the two mounting frames 11, a base 17 is fixedly connected with the bottom of the driving assembly 10, The top of the base 17 is fixedly connected with a quartz tube inner hole sealing component 18, the front of the bottom of the base 17 is fixedly connected with a supporting block 20, the back of the supporting block 20 is movably connected with a cutting knife 21, the bottom of the base 17 is provided with a transfer trolley 27, the outer wall of the hanging rod component 1 is fixedly connected with three fixing columns 2, the bottoms of the three fixing columns 2 are symmetrically and fixedly connected with the top of the hanging rod component 1, the center of the outer wall of the first air chuck 3 is fixedly connected with a gear ring 4, the front of the inner cavity of the hanging rod component 1 is rotationally connected with a gear 5, the center of the top of the gear 5 is fixedly connected with a first servo motor 6 through a first rotating shaft, the first servo motor 6 is fixedly connected in the inner cavity of the hanging rod component 1, The gear 5 is meshed with the gear ring 4, one side of the two in-furnace diameter measuring devices 8 opposite to each other symmetrically extends into the inner cavity of the heating furnace 7, the centers of the two opposite sides of the two driving assemblies 10 are symmetrically provided with notches, screw rods 28 are symmetrically and rotationally connected in the inner cavities of the two notches, the tops of the two screw rods 28 are symmetrically and fixedly connected with second servo motors 13 through second rotating shafts, the two second servo motors 13 are symmetrically and fixedly connected in the centers of the tops of the inner cavities of the two driving assemblies 10, the centers of the left sides of the top mounting frame 11 are movably connected in the inner cavities of the left side notches and are in threaded connection with the outer walls of the left side screw rods 28, the centers of the right sides of the bottom mounting frame 11 are movably connected in the inner cavities of the right side notches and are in threaded connection with the outer walls of the right side screw rods 28, The centers of the inner cavities of the two mounting frames 11 are symmetrically and fixedly connected with bearings, the second pneumatic chucks 12 are arranged in the inner cavities of the bearings, the front surfaces and the back surfaces of the left side and the right side of the two mounting frames 11 are symmetrically and fixedly connected with limit sliding blocks 16, the centers of the front surfaces and the back surfaces of the two driving assemblies 10 are symmetrically provided with guide grooves 14, the centers of the inner cavities of the guide grooves 14 are symmetrically and fixedly connected with first guide posts 15, the limit sliding blocks 16 are movably connected in the inner cavities of the guide grooves 14 and sleeved on the outer walls of the first guide posts 15, the centers of the inner hole sealing assemblies 18 of the quartz tube are provided with magnetic fluid suspension blocks 19, the peripheries of the bottoms of the bases 17 are symmetrically and fixedly connected with support posts 26, The universal wheels are symmetrically and fixedly connected to the periphery of the bottom of the transfer trolley 27, the round groove is formed in the top of the transfer trolley 27, the cutter rest 22 is fixedly connected to the back of the cutter 21, the movable block 23 is symmetrically and fixedly connected to the left side and the right side of the top of the cutter rest 22, the linear motor 24 is fixedly connected to the right side of the back of the base 17, the linear motor 24 is electrically connected with the right movable block 23, the second guide column 25 is fixedly connected to the back of the left side of the bottom of the base 17, the left movable block 23 is sleeved on the outer wall of the second guide column 25, and the breaking device is fixedly connected to the back of the bottom of the base 17.

The quartz tube with the expected size is generated by longitudinally drawing and rotating the heated main tube, the hydroxyl content of the quartz tube is low, the quartz tube is very suitable for the base used by the processes such as MCVD, PCVD and the like in the preparation process of G.654.E and special optical fibers, the main tube is in a rotating and heated state through the rotatable first air chuck 3 and the gear ring 4, the problem of uneven radial heating of the main tube is solved, the offset wall degree and the out-of-roundness of the quartz tube can be effectively reduced, the friction between a sealing device and the inner wall of the quartz tube can be reduced through magnetic fluid sealing through the arranged quartz tube inner hole sealing assembly 18, the pressure control can be realized, the inner wall is not damaged, and meanwhile, the automatic cutting and transferring operation of a final product can be realized by means of the automatic cutting and transferring device.

The preparation method of the synthetic quartz tube comprises the following operation steps:

S1: preparing a 156mm pure silica quartz rod by using an OVD technology, and carrying out excircle grinding and drilling on the secondary quartz rod to prepare a 150mm 80mm specification quartz mother tube, wherein the roughness of the inner wall of the quartz mother tube is less than 1 mu m, and the offset wall is less than or equal to 0.3mm

S2, welding the quartz mother tube, placing the top of the quartz mother tube in an inner cavity of a first air chuck 3, starting the first air chuck 3, clamping the top of the mother tube, enabling the bottom of the quartz mother tube to enter the inner cavity of a gear ring 4, and simultaneously starting two second air chucks 12, and clamping the bottom of the mother tube;

s3: starting a gear ring 4 to clamp a parent pipe, starting a first servo motor 6 to drive a gear 5 to rotate, meshing with the gear ring 4 when the gear 5 rotates, driving a first air chuck 3 to rotate at the moment, rotating the parent pipe at the moment, and rotating two second air chucks 12 at the bottom in an inner cavity of a mounting frame 11;

S4: starting two second servo motors 13 to drive two screw rods 28 to rotate in the inner cavities of two driving assemblies 10, wherein at the moment, two mounting frames 11 can move up and down on the opposite sides of the two driving assemblies 10, and stretch the mother pipe while rotating, and in the stretching process, the first air chuck 3 moves to the heating furnace 7 according to a set speed in the pressure control stretching process of the mother pipe through the quartz pipe inner hole sealing assembly 18 and the first air chuck 3;

S5: the outer diameter and the wall thickness of the parent pipe are controlled by adjusting the moving speed and the pressure control of the first pneumatic chuck 3 and the second pneumatic chuck 12, and meanwhile, the inside diameter gauge 8 and the outside diameter gauge 9 detect the size of the parent pipe, and typical parameters are shown in a parameter table 1;

S6: at this time, the finished quartz tube will extend to the bottom of the base 17, and the linear motor 24 is started, so that the movable block 23 can drive the cutting knife 21 to move forward, so that the finished quartz tube can be cut by the cutting knife 21, and the cut quartz tube can drop into the transfer trolley 27 for subsequent transfer work.

First embodiment:

The cutter 21 may be replaced by a laser cutter, the hollow mother tube is fixed in the first air chuck 3, the typical outer diameter of the mother tube is 150mm, the inner diameter is 60mm, the first air chuck 3 drives the mother tube to rotate at a speed of 30r/min and to heat in the heating furnace 4, meanwhile, the rotary stretching system composed of the driving assembly 10, the mounting frame 11 and the second air chuck 12 rotates at a speed of 30r/min, the rotary stretching system can alternately pull the mother tube downwards, and when the production length reaches the specified size, the cutter 21 is used for cutting off the quartz tube, in the production process, the pressure is adjusted by controlling the speeds of the first air chuck 3 and the second air chuck 12, the outer diameter and the wall thickness of the quartz tube are controlled, and the on-line measurement of the quartz tube size is performed by the in-furnace caliper 8 and the out-furnace caliper 9, wherein typical parameters for preparing different specification sizes are shown in table 1:

typical dimensional data for quartz tubes prepared therein are shown in table 2:

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. An apparatus for synthesizing quartz tubes, comprising a hanging rod assembly (1), characterized in that: the center of the inner cavity of the rod hanging assembly (1) is rotationally connected with a first air chuck (3), a heating furnace (7) is arranged at the lower part of the first air chuck (3), furnace diameter measuring devices (8) are symmetrically and fixedly connected with the centers of the left side and the right side of the heating furnace (7), and a furnace diameter measuring device (9) is fixedly connected with the front surface of the bottom of the heating furnace (7);

The left side and the right side of the bottom of the heating furnace (7) are symmetrically and fixedly connected with driving assemblies (10), the top and the bottom of the opposite sides of the two driving assemblies (10) are symmetrically and movably connected with mounting frames (11), and the centers of the inner cavities of the two mounting frames (11) are symmetrically and rotatably connected with second pneumatic chucks (12);

The bottom fixedly connected with base (17) of drive assembly (10), the top fixedly connected with quartz capsule hole seal assembly (18) of base (17), the front fixedly connected with supporting shoe (20) of base (17) bottom, the back swing joint of supporting shoe (20) has cutting knife (21), the bottom of base (17) is provided with transportation dolly (27).

2. The apparatus for synthesizing a quartz tube according to claim 1, wherein: the outer wall fixedly connected with fixed column (2) of hanging rod subassembly (1), fixed column (2) have three, three the bottom symmetry fixed connection of fixed column (2) is at the top of hanging rod subassembly (1), the centre fixedly connected with gear ring (4) of first air chuck (3) outer wall.

3. An apparatus for synthesizing a quartz tube according to claim 2, wherein: the front of the inner cavity of the rod hanging assembly (1) is rotationally connected with a gear (5), the center of the top of the gear (5) is fixedly connected with a first servo motor (6) through a first rotating shaft, the first servo motor (6) is fixedly connected in the inner cavity of the rod hanging assembly (1), the gear (5) is meshed with a gear ring (4), and two opposite sides of the in-furnace caliper (8) symmetrically extend into the inner cavity of the heating furnace (7).

4. The apparatus for synthesizing a quartz tube according to claim 1, wherein: the centers of two opposite sides of the driving assembly (10) are symmetrically provided with notches, screw rods (28) are symmetrically and rotationally connected in the inner cavities of the two notches, the tops of the two screw rods (28) are symmetrically and fixedly connected with second servo motors (13) through second rotating shafts, and the two second servo motors (13) are symmetrically and fixedly connected with the centers of the tops of the inner cavities of the two driving assemblies (10).

5. The apparatus for synthesizing a quartz tube according to claim 4, wherein: the top the centre swing joint in the inner chamber of left side notch and threaded connection at the outer wall of left side lead screw (28) in mounting bracket (11) left side, the bottom the centre swing joint in the inner chamber of right side notch and threaded connection at the outer wall of right side lead screw (28) in mounting bracket (11) right side, two the centre symmetry fixedly connected with bearing in mounting bracket (11) inner chamber, second air chuck (12) are installed in the inner chamber of bearing.

6. The apparatus for synthesizing a quartz tube according to claim 1, wherein: two positive and the back symmetry fixedly connected with spacing slider (16) of mounting bracket (11) left and right sides, two guide way (14) have been seted up to the positive and back centre symmetry of drive assembly (10), the centre symmetry fixedly connected with first guide post (15) of guide way (14) inner chamber, spacing slider (16) swing joint is at the outer wall of guide post (15) is established to the cover in the time of guide way (14) inner chamber.

7. The apparatus for synthesizing a quartz tube according to claim 6, wherein: the magnetic fluid suspension block (19) is arranged in the middle of the quartz tube inner hole sealing assembly (18), support columns (26) are symmetrically and fixedly connected to the periphery of the bottom of the base (17), universal wheels are symmetrically and fixedly connected to the periphery of the bottom of the transfer trolley (27), and round grooves are formed in the top of the transfer trolley (27).

8. The apparatus for synthesizing a quartz tube according to claim 1, wherein: the back of the cutter (21) is fixedly connected with a cutter rest (22), the left side and the right side of the top of the cutter rest (22) are symmetrically and fixedly connected with movable blocks (23), the right side of the back of the base (17) is fixedly connected with a linear motor (24), the linear motor (24) is electrically connected with the right movable block (23), the back of the left side of the bottom of the base (17) is fixedly connected with a second guide column (25), the left side of the movable block (23) is sleeved on the outer wall of the second guide column (25), and the back of the bottom of the base (17) is fixedly connected with a breaking device.