CN218709990U - Rod clamping mechanism for quartz glass rod and wire drawing device - Google Patents
Rod clamping mechanism for quartz glass rod and wire drawing device Download PDFInfo
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- CN218709990U CN218709990U CN202222787151.9U CN202222787151U CN218709990U CN 218709990 U CN218709990 U CN 218709990U CN 202222787151 U CN202222787151 U CN 202222787151U CN 218709990 U CN218709990 U CN 218709990U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model provides a press from both sides excellent mechanism and wire drawing device for quartz glass stick, include: the bar clamping disc is provided with uniformly distributed fixing holes; the clamping assembly is arranged in the fixing hole and used for clamping the quartz glass rod in a vertical state; the fixing hole comprises a concave part and an insertion hole penetrating through the center of the bottom of the concave part; the clamping component is arranged on the concave part; the clamping assembly comprises a heat insulation gasket and a clamping gasket; the clamping washer is arranged in the heat insulation washer; the inner circle of the clamping washer forms a clamping hole which is used for clamping the quartz glass rod in a vertical state. According to the wire drawing method, the wire drawing efficiency and the product quality are improved by performing preheating wire drawing in a high-temperature environment; the design of the porous rod clamping mechanism enables the operation of rod clamping to be simple and easy, the rod clamping mechanism is suitable for quartz glass rods with different quantities and diameters, and the production efficiency and the operation flexibility are improved.
Description
Technical Field
The utility model relates to a quartz glass fiber preparation field specifically relates to a press from both sides excellent mechanism and wire drawing device for quartz glass stick.
Background
The alpha angle in the drawing process for continuously producing the quartz glass fiber is the included angle between the monofilament at the outermost side of the positioning plate and a plumb bob angle, also called a fan-shaped half angle, and determines the length of the positioning plate and the distance between the positioning plate and the bundling groove, the alpha angle is generally not more than 7 degrees, and the larger the alpha angle, the larger the tension of a single fiber at the edge of the positioning plate is. When the tension is too high, it may cause breakage and filament flying. Therefore, the angle alpha is as small as possible, and the most effective measure for reducing the angle alpha is to increase the total length of the wire drawing operation line, namely, to increase the distance between the positioning plate and the bundling wheel.
The quartz glass fiber precursor is required to be processed into quartz glass fiber yarns through twisting, the number of the precursor holes is smaller, the number of the required precursor tows is larger, the number of the tows is larger, the uniformity of the precursor is poorer, and the breaking strength of the quartz glass fiber yarns is reduced.
At present, the wire drawing process for continuously producing the quartz glass fibers generally adopts a single-row-hole wire drawing mode, when the number of single wire drawing holes needs to be increased, the number of the inserted rods is increased towards two sides along with the single-row-hole wire drawing hole, and the included angle of the quartz glass fiber protofilaments on the two sides is too large, so that the wire drawing operation is not facilitated. The method is limited by the process principle that the alpha angle is not more than 7 degrees generally, and the number of wire drawing holes and the wire drawing yield are difficult to improve on the basis of the existing single-row hole wire drawing. Meanwhile, due to the increase of the number of holes, the operation difficulty is increased, the production efficiency is reduced, and the problem of how to improve the production efficiency while increasing the number of holes is solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a rod clamping mechanism and a wire drawing device for quartz glass rods, which improve the wire drawing efficiency and the product quality by preheating and drawing wires in a high-temperature environment; the design of the porous rod clamping mechanism enables the operation of rod clamping to be simple and easy, the rod clamping mechanism is suitable for quartz glass rods with different quantities and diameters, and the production efficiency and the operation flexibility are improved.
The utility model discloses a first aspect provides a press from both sides excellent mechanism for quartz glass stick, include: the bar clamping disc is provided with uniformly distributed fixing holes; the clamping assembly is arranged in the fixing hole and used for clamping the quartz glass rod to be in a vertical state; the fixing hole comprises a concave part and an insertion hole penetrating through the center of the bottom of the concave part; the clamping component is arranged on the concave part; the clamping assembly comprises a heat insulation gasket and a clamping gasket; the clamping washer is arranged in the heat insulation washer; the inner circle of the clamping washer forms a clamping hole which is used for clamping the quartz glass rod in a vertical state.
Further, the diameter of the insertion hole is larger than that of the quartz glass rod.
Furthermore, an annular embedded groove is formed in the height center of the inner circumferential surface of the heat insulation gasket; the clamping washer is embedded in the embedding groove.
Further, the diameter of the clamping hole is smaller than the inner diameter of the heat insulation gasket; the diameter of the clamping hole is smaller than that of the quartz glass rod; the inner diameter of the insulating washer is matched to the diameter of the quartz glass rod.
Furthermore, the clamping washer is an elastic washer, and the quartz glass rod is clamped by using extrusion elasticity.
Furthermore, the heat insulation gasket is made of quartz fiber cloth wrapped by high-temperature-resistant materials and is a circular gasket formed by splicing two semicircles.
Furthermore, the clamping washer is made of quartz fiber cloth wrapped elastic high-temperature-resistant materials.
Further, the clamping rod disk is made of a simple substance or a composite material selected from tungsten or tungsten alloy.
The second aspect of the utility model provides a wire drawing device, which adopts the rod feeding unit with the rod clamping mechanism; the lower rod unit clamps the quartz glass rod to move vertically in the heating furnace to perform the wire drawing operation of the quartz glass fiber.
According to the rod clamping mechanism, the clamping effect of the quartz glass rods is simultaneously realized by adopting the design of the plurality of fixing holes, the number of wire drawing holes and the single-time yield of wire drawing are increased in the wire drawing device, and the production efficiency is improved; the rod clamping disc and the clamping assembly are made of high-temperature-resistant materials, so that the rod clamping disc and the clamping assembly are suitable for a high-temperature environment, and clamping operation of the quartz glass rod is guaranteed in the heating process of the quartz glass rod; the clamping assembly is simple to operate due to the structural design, the quartz glass rod can be replaced by pulling and inserting the clamping assembly, and the efficiency of replacing the quartz glass rod is improved; meanwhile, the clamping assembly can be customized according to the diameter of the quartz glass rod, and clamping assemblies of different specifications are manufactured, so that the clamping effect is more flexible, and the multi-specification operation requirements are met.
It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present invention will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 is a plan view of the clamping bar mechanism of the present embodiment;
FIG. 2 is a longitudinal sectional view showing a fixing hole in the bar clamping mechanism according to the present embodiment;
FIG. 3 is a top view of the structure of the clamping assembly of the rod clamping mechanism of the present embodiment;
FIG. 4 is a longitudinal sectional view of the clamping assembly of the present embodiment;
FIG. 5 is a schematic view of the installation of the clamping assembly and the fixing hole of the present embodiment;
FIG. 6 is a structural view of the wire drawing device of the present embodiment;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
1. heating furnace; 2. a rod lowering unit; 3. a melt rod unit; 4. a heat insulating part; 5. heating the net; 6. a rod clamping mechanism; 61. a rod clamping disc; 611. a jack; 612. a recessed portion; 62. a clamping assembly; 621. a heat insulating gasket; 622. a clamping washer; 6211. a groove is embedded; 7. a clamping hole; 8. a cluster wheel; 9. a wire arrangement wheel; 10. a wire-winding tube; 11. an impregnating agent nozzle; 12. a quartz glass rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the following, a first aspect of the present invention will be described with reference to a top view of the structure of the rod clamping mechanism 6 shown in fig. 1, and a rod clamping mechanism 6 for a quartz glass rod 12 is provided, comprising: the rod clamping disc 61 is provided with uniformly distributed fixing holes and is used for fixing the plurality of quartz glass rods 12; and the clamping assembly 62 is arranged in the fixing hole and is used for clamping the quartz glass rod 12 in a vertical state.
In this embodiment, as shown in the longitudinal sectional view of the fixing hole of fig. 2, the fixing hole is provided with a recess 612 and an insertion hole 611 penetrating the center of the bottom of the recess 612; wherein the recess 612 mounts the clamping assembly 62; the diameter of the insertion hole 611 is larger than that of the silica glass rod 12. The bottom of the recess 612 acts as a support for the clamping assembly 62. The quartz glass rod 12 is inserted into the center of the clamping member 62 through the bottom of the insertion hole 611 to be clamped and fixed. The fixing holes are arranged in sequence and distributed in concentric circles, and can also be uniformly distributed on the rod clamping disc 61, so that collision and bonding between the clamped quartz glass rods 12 are avoided. The number of the fixing holes is set, the clamping number of the quartz glass rods 12 is directly influenced, and the quartz glass rods 12 can be regulated and controlled according to requirements and diameter requirements.
In this embodiment, as shown in the structural top view of the clamping assembly 62 in fig. 3, the clamping assembly 62 includes a thermal insulating washer 621 and a clamping washer 622; wherein the clamping washer 622 is installed in the heat insulation washer 621; the inner circle of the clamping washer 622 forms a clamping hole 7, and the clamping hole 7 is used for clamping the quartz glass rod 12 in a vertical state. Insulating gasket 621 cooperates with clamp gasket 622 to form clamp assembly 62. The heat insulating washer 621 is used to reduce heat transfer between the chuck plate 61 and the external heat to the clamping washer 622, increase the service life of the clamping washer 622, and maintain the clamping effect. The heat insulating gasket 621 prevents the clamp gasket 622 from softening and melting at a high temperature for a long time during operation, and reduces the risk of the quartz glass rod 12 falling off.
In the above embodiment, as shown in a longitudinal sectional view of the clamp assembly 62 shown in fig. 4, the heat insulating washer 621 is provided with an annular fitting groove 6211 at a height center position of the inner peripheral surface thereof; the clamp washer 622 is fitted into the fitting groove 6211. The insert-mounting of the clamping washer 622 is to better insulate the clamping washer 622, and at the same time, to increase the stability of the clamping washer 622, and after clamping the quartz glass rod 12, the insert groove 6211 will also support the clamping washer 622 under the gravity of the quartz glass rod 12.
In the above embodiment, the clamp washer 622 is an elastic washer for elastically clamping the silica glass rod 12 by pressing. The clamping washer 622 can be made of high-temperature-resistant elastic materials such as silica gel washers wrapped by quartz fiber cloth, the clamping effect is kept through extrusion elasticity, and the clamping washer 622 is suitable for high-temperature environments.
In the above embodiment, as shown in fig. 5, the clamping assembly 62 is mounted to the fixing hole, and the diameter of the clamping hole 7 is smaller than the inner diameter of the thermal insulating gasket 621; the diameter of the clamping hole 7 is smaller than that of the quartz glass rod 12; the inner diameter of the insulating washer 621 matches the diameter of the quartz glass rod 12. The diameter of the clamping hole 7 is smaller than that of the quartz glass rod 12, and then extrusion is carried out to play a clamping role; the inner diameter of the heat insulation gasket 621, which protrudes from the clamping gasket 622, provides a certain buffer space for clamping, and the clamping gasket 622 can completely enter the embedded groove 6211 of the heat insulation gasket 621 through extrusion, and only when the elasticity of the clamping gasket 622 is matched with the diameter of the quartz glass rod 12, the clamping gasket 622 can completely enter the embedded groove 6211 while clamping the quartz glass rod 12, so that the heat insulation gasket 621 can perform heat insulation protection on the clamping gasket 622 in all directions. The diameter is required to ensure that the quartz glass rod 12 is subjected to a suitable clamping force. Through setting up cascaded diameter distribution, its extrusion force also can go forward one by one, protects layer by layer, increases the operation safety.
In the above embodiment, the inner diameter of the insertion hole 611 of the fixing hole is larger than the inner diameter of the heat insulating gasket 621 of the clamping assembly 62, so that when the clamping assembly 62 and the rod clamping disc 61 are assembled, after the heat insulating gasket 621 is inserted into the fixing hole, the heat insulating gasket 621 protrudes to a certain distance towards the center relative to the insertion hole 611, so that a certain extrusion space is provided for clamping the quartz glass rod 12, wherein the heat insulating gasket 621 is made of high temperature resistant materials such as quartz wool wrapped by quartz fiber cloth, so as to play a role of heat insulation in a high temperature environment, and also has a certain elasticity, so that a certain extrusion space is provided when the clamping hole 7 needs a larger space to clamp the quartz glass rod 12.
In the above embodiment, the heat insulating gasket 621 is a circular gasket formed by two semicircular pieces. The splicing design takes into account the material of the heat insulating gasket 621, and if the material is a hard material, the splicing is convenient for installation.
In this embodiment, the structure of freely combining the thermal insulating washer 621 and the clamping washer 622 may be performed according to the hardness of the material, such as combining the spliced thermal insulating washer 621 with the circular clamping washer 622, or combining the circular thermal insulating washer 621 with the spliced clamping washer 622. The combination is easy to operate during installation, and the problems of gasket distortion and uneven clamping force are avoided.
In the above embodiment, the clamping bar disk 61 is made of a simple substance or a composite material selected from tungsten or a tungsten alloy. The material is cast by adopting a high-temperature resistant material, and is suitable for a high-temperature environment; the high temperature is 1000-2000 ℃. The clamping bar disc 61 can also be made of other high-temperature resistant materials to adapt to different high-temperature environments. The rod clamping mechanism 6 is designed to adapt to the effect of clamping the quartz glass rod 12 in a high-temperature environment.
In a second aspect of the present invention, as shown in the structure diagram of the wire drawing apparatus shown in fig. 6, a wire drawing apparatus is provided, which employs the rod feeding unit having the rod clamping mechanism 6; the lower rod unit clamps the quartz glass rod 12 and moves up and down in the heating furnace in a vertical state to perform the wire drawing operation of the quartz glass fiber.
Specifically, the wire drawing device includes: the heating furnace 1 is provided with a furnace chamber penetrating through the heating furnace at the center of the furnace top; the furnace chamber is sequentially provided with a preheating chamber and a heating chamber from top to bottom; the lower rod unit 2 drives the quartz glass rod 12 in a vertical state to move up and down in the preheating cavity; the melting rod unit 3 is arranged below the lower rod unit 2, is arranged in the heating cavity and is used for melting the bottom of the quartz glass rod 12; and the filament collecting unit is arranged below the heating furnace 1 and is used for collecting the quartz glass fiber precursor.
In the above embodiment, the furnace wall of the heating furnace 1 is provided with the heat insulating part 4 on the outer side; the heat insulating portion 4 is used to maintain the temperature in the furnace. The heat insulation part 4 is wrapped outside the heating furnace by adopting a heat insulation material, so that the temperature in the furnace is kept constant, and the heat insulation material can be quartz glass wool and other materials. The setting of thermal-insulated portion 4, the constancy of temperature in preheating chamber in the further heating furnace 1 of having guaranteed, the uniformity that quartz glass stick 12 was heated has been guaranteed, because of the design that adopts clip stick dish 6, quartz glass stick 12 is concentrated in heating furnace 1, if the difference in temperature is too big in the stove, can directly influence the melting uniformity between the quartz glass stick 12, in the wire drawing in later stage, quartz glass stick 12 that has the difference in temperature is under same melting temperature, the inconsistent phenomenon of quality will appear under the wire drawing speed, can produce the phenomenon that the fracture flies the silk even, increase the degree of difficulty of wire drawing. Therefore, the heat insulation part 4 is added, the temperature difference minimization is ensured, and the balance of the temperature in the furnace is ensured.
In the above embodiment, the preheating section is provided inside the wall of the heating furnace 1; the preheating part is surrounded by a heating net 5 to form a preheating cavity; the preheating cavity is positioned between the furnace top of the furnace cavity and the melting rod unit 3 and is used for preheating the quartz glass rod 12. The preheating part is electrified and heated through a heating net, and other heating equipment such as a heating plate, a heating pipe and the like can be adopted, the heating temperature is set to be 1000-1500 ℃, the quartz glass rod 12 is heated for the first time, the melting time is reduced and the melting rate is improved relative to the effect of preliminary preheating during melting, so that the production efficiency is increased. The temperature difference in the preheating cavity is kept to be not more than 10 ℃, so that the preheating balance of the quartz glass rod is improved, and the melting consistency is improved.
In this embodiment, a heat preservation chamber is formed above the melting rod unit 3 at the bottom of the preheating chamber, the temperature is kept constant, and the quartz glass rod is continuously preheated and heat preserved, so that the melting time of the melting rod unit 3 is reduced, the production efficiency is improved, the strength of the quartz glass fiber is increased, the flying of the quartz fiber is reduced, the direction change is increased by an angle alpha, and the yield is increased.
In the above embodiment, the furnace bottom of the furnace chamber is further provided with a cooling device, and the cooling device surrounds to form a cooling cavity; the cooling cavity is positioned below the heating cavity and used for cooling the quartz glass fiber precursor. The cooling device adopts refrigeration equipment such as water cooling equipment, cooling liquid equipment, air cooling equipment and the like to cool the quartz glass fiber precursor, so as to carry out quick qualitative operation and avoid bonding and deformation in the filament collecting process.
In the above embodiment, the lower rod unit 2 is provided with the rod clamping mechanism 6 at the bottom. The lower rod unit 2 and the rod clamping mechanism 6 are made of high-temperature-resistant materials tungsten or tungsten alloy materials and are detachably mounted, so that the rod clamping mechanisms 6 of different specifications can be replaced conveniently. The quartz glass rods 12 of different diameters are satisfied by providing the rod clamping mechanism 6 having the clamping holes 7 of different diameters. The design increases the flexibility of the wire drawing device, is suitable for the production of quartz glass rods 12 with different specifications, is simple and convenient to operate, and saves the equipment cost. The quartz glass rod 12 is generally 1-5mm in diameter. The diameter requirement is combined with the setting of a heating furnace and the setting of the melting temperature, so that the high-quality quartz glass fiber precursor is prepared better, and the consistency of the fiber precursor is improved.
In the above embodiment, the melting rod unit 3 is provided with the positioning plate and the melter; the positioning disc is provided with a through hole for positioning the quartz glass rod 12; the melter is mounted at the bottom of the positioning plate at one side of the bottom of the through hole to form a heating chamber for melting the bottom of the quartz glass rod 12. The melter is arranged parallel to the bottom end of the quartz glass rod 12. By providing the same number of melters as the quartz glass rods, the consistency of the melting of the quartz glass rods 12 can be ensured. The vertical distance of the melter from the quartz glass rod 12 is suitably selected according to the heating range of the melter to ensure that the highest heating zone of the melter is just at the bottom of the quartz glass rod 12. The working heating temperature of the melting device is 1700-2500 ℃, and the melting of the quartz glass rod 12 is effectively ensured. The preliminary preheating in the preheating cavity improves the melting efficiency of the melting device in the heating cavity and improves the wire drawing quality of the quartz glass fiber precursor. The melting device can adopt a gas heater or an electric heater, and is arranged by combining with the selection of heating equipment of the preheating cavity, preferably, the same type of heating mode is selected, so that a set of heating system can be arranged, the heating equipment of the preheating cavity is connected with the melting device, the matching equipment of the equipment is simple and convenient, and the design cost and the device manufacturing cost are saved.
In the above embodiments, the positioning plate is also made of a high temperature resistant material, namely tungsten or tungsten alloy, so as to adapt to the high temperature in the heating cavity. The through hole penetrates through the positioning disc and has the same diameter as the quartz glass rod 12.
In the above embodiment, the through holes and the clamping holes 7 have the same amount and are arranged in one-to-one correspondence, and each pair of through holes and the clamping holes 7 are located on the same vertical line; the number of the melting devices is the same as that of the through holes. The size of the through hole is equal to the diameter of the quartz glass rod 12, and the quartz glass rod 12 cannot move horizontally in the through hole but can move vertically. Because the quartz glass stick 12 has certain length in the process of drawing and manufacturing the fiber strands, the bottom can greatly shake horizontally in the lifting process, and the through hole is used for fixing the bottom of the quartz glass stick 12. The positioning plate can be arranged in a plurality of ways according to the length of the quartz glass rod 12, and is vertically arranged at intervals, and a melting device is arranged below the positioning plate at the bottommost end. In the wire drawing process, the melting unit is fixed, the lower rod unit 2 descends along with the shortening of the melting wire drawing of the quartz glass rod 12, and the wire drawing operation is completed after the lower rod unit 2 is contacted with the positioning disc.
In the above embodiment, the filament collecting unit is sequentially provided with the bundling wheel 8, the wire arranging wheel 9 and the winding cylinder 10 at intervals for bundling, arranging and winding the quartz glass fiber precursor.
In the above embodiment, the bundling wheel 8 has a plurality of bundling surfaces that are rotationally symmetric about the central axis, and each bundling surface is provided with one or more bundling grooves for dividing the quartz glass fiber strands into a plurality of groups to bundle in the bundling grooves and bundling the quartz glass fiber strands into one bundle. A multi-stage bundling mode is adopted, and a multi-stage bundling wheel 8 is arranged up and down; the bundling positions of the bundling wheels 8 at each stage are arranged in a centrosymmetric manner in the horizontal direction with the central axes of the plurality of quartz glass rods 12 as centers, and the groups of quartz glass fiber strands to be bundled are bundled in a symmetric manner in the circumferential direction.
In the above embodiment, the wire arranging wheels 9 are arranged at the right lower part of the bundling wheel 8 and used for arranging wires of quartz glass fiber strands, and the number of the wire arranging wheels 9 is reasonably set according to the number of the fiber bundles; the winding cylinder 10 is arranged at the lower left of the wire arranging wheel 9 and is used for winding the quartz glass fiber protofilament, and the fiber protofilament is wound on the winding cylinder 10 to complete the production of the fiber protofilament. After completion of the drawing and winding of the loaded silica glass rod 12, the silica glass rod 12 is reloaded and the winding drum 10 is replaced to start the drawing and winding operation of the newly loaded silica glass rod 12.
In the above embodiment, the immersion agent nozzle 11 is provided above the cluster wheel 8, and the immersion agent recovery tank is provided below. The use of the impregnating compound solves the problem of fiber flying of fiber strands in bundling.
In the embodiment, the number and the positions of the bunching wheels 8 are set according to the number of the quartz glass rods 12, and the quartz glass fiber strands with the alpha angle not more than 7 degrees are bunched on the same bunching wheel 8 to form a primary bunching wheel; when a plurality of primary bundling wheels are arranged, secondary and tertiary bundling wheels are arranged below the primary bundling wheels, the secondary bundling wheels are used for bundling the protofilaments of part of the primary bundling wheels, and the tertiary bundling wheels are used for bundling the protofilaments of all the secondary bundling wheels. A wire arranging wheel 9 and a wire winding cylinder 10 are arranged below the three-stage bundling wheel. The wire arranging wheels 9 and the wire winding cylinders 10 with different numbers can be arranged according to the number of actual protofilaments and the number of tows of a final product.
In the above embodiment, the lower rod unit 2 is electrically connected to the PLC control program to control the elevation of the rod clamping mechanism 6. The lower rod unit 2 drives the rod clamping mechanism 6 to move up and down, and the movement speed is determined according to the diameter of the quartz glass rod 12 and the diameter of the required quartz glass fiber strand, and is also determined by combining the melting speed of the melting rod unit 3.
In the above embodiment, the melting rate of the melting rod unit 3 directly determines the lowering speed and the drawing speed of the lower rod unit 2, and the balance of the three is maintained during the operation. During the operation, the lower rod unit 2 is lowered at a predetermined speed corresponding to the collection while the winding tube 10 collects the silica glass fiber strand at a predetermined speed, the silica glass rod is supplied to the melter at a predetermined speed, the silica glass strand is drawn out while being heated to the end of the molten silica glass rod while being slowly supplied, and the drawn silica glass strand is collected without interruption until the lower rod unit 2 is lowered to the lowest position via the predetermined collecting wheel 8, the wire arranging wheel 9, and the winding tube 10, thereby completing the drawing process of the entire silica glass rod. At this time, after the remaining quartz glass rod remnants are removed, a new quartz glass rod can be reloaded for drawing.
When the wire drawing device is used for carrying out the wire drawing process of the quartz glass rod, the concrete steps are as follows:
before starting the device, data needs to be preset in the PLC control program: the speed of the lifting of the lower rod unit 2; the melt rate of the melter; the rotating speeds of the bunching wheel 8, the wire arranging wheel 9 and the wire winding barrel 10 are respectively set;
fixing a quartz glass rod: the rod clamping mechanism 6 keeps a plurality of quartz glass rods in a concentric circular arrangement mode in a vertical state, the rod descending unit 2 is started, the quartz glass rods are arranged at an initial height, the quartz glass rods respectively penetrate through the through holes of the positioning disc, and the bottom ends of the quartz glass rods are parallel to the melting device;
drawing a quartz glass rod: switching on a power supply, preheating the quartz glass rod by the preheating cavity, melting the bottom end of the quartz glass rod by the melter, and drawing at the melting part of the quartz glass rod to perform drawing of the quartz glass fiber precursor;
taking up fiber strands: bundling the quartz glass fiber precursor at a bundling wheel 8, coating a sizing agent, arranging wires at a wire arranging wheel 9, and finally winding the quartz glass fiber precursor on a wire winding drum 10 to form a finished product fiber precursor;
and (3) finishing drawing: along with the wire drawing, the melting unit 3 is fixed, and the rod feeding unit 2 descends at a constant speed; finishing the wire drawing till the lower rod unit 2 is contacted with the positioning disc; the rod feeding unit 2 ascends, clamps the quartz glass rod again according to the preset program, and performs the next wire drawing process.
When using the utility model discloses a wire drawing device, can realize following technological effect:
the design of a plurality of fixing holes is adopted to simultaneously clamp a plurality of quartz glass rods, so that the number of wire drawing holes and the single-time yield of wire drawing are increased in the wire drawing device, and the production efficiency is improved; the rod clamping disc and the clamping assembly are made of high-temperature-resistant materials, so that the rod clamping disc and the clamping assembly are suitable for a high-temperature environment, and clamping operation of the quartz glass rod is guaranteed in the heating process of the quartz glass rod; the clamping assembly is simple to operate due to the structural design, the quartz glass rod can be replaced by pulling and inserting the clamping assembly, and the efficiency of replacing the quartz glass rod is improved; meanwhile, the clamping assembly can be customized according to the diameter of the quartz glass rod, and clamping assemblies of different specifications are manufactured, so that the clamping effect is more flexible, and the multi-specification operation requirements are met.
In the description of the present invention, the terms "connect", "install", "fix", etc. should be understood broadly, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A rod clamping mechanism for quartz glass rods, comprising:
the bar clamping disc is provided with uniformly distributed fixing holes; and
the clamping assembly is arranged in the fixing hole and used for clamping the quartz glass rod in a vertical state; wherein, the first and the second end of the pipe are connected with each other,
the fixing hole comprises a concave part and an insertion hole penetrating through the center of the bottom of the concave part; the clamping component is arranged on the concave part;
the clamping assembly comprises a heat insulating gasket and a clamping gasket;
the clamping washer is arranged in the heat insulation washer; the inner circle of the clamping washer forms a clamping hole which is used for clamping the quartz glass rod in a vertical state.
2. The rod clamping mechanism of claim 1,
the diameter of the insertion hole is larger than that of the quartz glass rod.
3. The rod clamping mechanism of claim 1,
an annular embedded groove is formed in the height center of the inner circumferential surface of the heat insulation gasket;
the clamping washer is embedded in the embedding groove.
4. A rod clamping mechanism according to claim 1,
the diameter of the clamping hole is smaller than that of the quartz glass rod;
the inner diameter of the heat insulating washer is matched with the diameter of the quartz glass rod.
5. The rod clamping mechanism of claim 1,
the clamping washer is an elastic washer, and the quartz glass rod is clamped by extrusion elasticity.
6. The rod clamping mechanism of claim 1,
the heat insulation gasket is made of quartz fiber cloth wrapped by high-temperature-resistant materials and is a circular gasket formed by splicing two semicircles.
7. The rod clamping mechanism of claim 1,
the clamping washer is made of elastic high-temperature-resistant materials wrapped by quartz fiber cloth.
8. The rod clamping mechanism of claim 1,
the clamping rod disc is made of a simple substance or a composite material selected from tungsten or tungsten alloy.
9. A wire drawing device is characterized in that,
using a lower rod unit having the rod clamping mechanism of any one of claims 1 to 8;
the lower rod unit clamps the quartz glass rod to vertically move in the heating furnace to perform the wire drawing operation of the quartz glass fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222787151.9U CN218709990U (en) | 2022-10-23 | 2022-10-23 | Rod clamping mechanism for quartz glass rod and wire drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222787151.9U CN218709990U (en) | 2022-10-23 | 2022-10-23 | Rod clamping mechanism for quartz glass rod and wire drawing device |
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| CN115745396A (en) * | 2022-10-23 | 2023-03-07 | 武汉鑫友泰光电科技有限公司 | Quartz glass fiber drawing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115745396A (en) * | 2022-10-23 | 2023-03-07 | 武汉鑫友泰光电科技有限公司 | Quartz glass fiber drawing device |
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