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CN-121651668-B - Multi-glass fiber bundle drawing equipment capable of setting outer diameter of glass fiber

CN121651668BCN 121651668 BCN121651668 BCN 121651668BCN-121651668-B

Abstract

The invention provides a multi-glass fiber bundle drawing device capable of setting the outer diameter of glass fibers, which belongs to the technical field of glass fiber bundle drawing and comprises a wire drawing tower, wherein a forming mechanism is fixedly arranged in the middle of the front side of the outer wall of the wire drawing tower and comprises an array wire drawing furnace and a die fixing plate positioned below the array wire drawing furnace, a plurality of weeping holes with axes extending along the vertical direction are formed in the top of the array wire drawing furnace, the weeping holes are uniformly distributed in a rectangular shape and penetrate through the array wire drawing furnace, a plurality of mounting holes with the axes extending along the vertical direction are formed in the die fixing plate, the mounting holes are respectively and coaxially arranged with the weeping holes, a heating sleeve is fixedly arranged at the bottom of the inner wall of the mounting holes, an inner hole of the heating sleeve is in a funnel shape, and a drawing die is detachably arranged in the inner hole of the heating sleeve. The problem of overlarge included angle of the precursor wires during multi-beam wire drawing in the prior art is avoided.

Inventors

  • GAO SHANCHENG
  • WU HANG

Assignees

  • 武汉光盛通光电科技有限公司

Dates

Publication Date
20260512
Application Date
20260206

Claims (7)

  1. 1. The multi-glass fiber bundle drawing equipment capable of setting the outer diameter of glass fibers comprises a wire drawing tower and is characterized in that a forming mechanism is fixedly arranged in the middle of the front side of the outer wall of the wire drawing tower, and a rod feeding mechanism is arranged at the top of the front side of the outer wall of the wire drawing tower; The forming mechanism comprises an array wire drawing furnace, a die fixing plate positioned below the array wire drawing furnace and a connecting assembly used for fixing the die fixing plate onto the array wire drawing furnace, wherein a plurality of leakage holes with axes extending along the vertical direction are formed in the top of the array wire drawing furnace, the plurality of leakage holes are uniformly distributed in a rectangular shape and penetrate through the array wire drawing furnace, a plurality of mounting holes with axes extending along the vertical direction are formed in the die fixing plate, the mounting holes are respectively coaxially arranged with the plurality of leakage holes, a heating sleeve is fixedly arranged at the bottom of the inner wall of the mounting hole, an inner hole of the heating sleeve is funnel-shaped, a stretching die is detachably arranged in the inner hole of the heating sleeve, and the outer wall of the stretching die is completely attached to the inner hole of the heating sleeve; The top of the stretching die is provided with a wire drawing hole which is funnel-shaped, and the heating sleeve adopts an electric heating mode and is electrically connected with an external power supply; The bottom of the die fixing plate is provided with cooling plates, the top of each cooling plate is fixedly provided with cooling sleeves, the axes of the cooling sleeves extend along the vertical direction, the number of the cooling sleeves is the same as that of the mounting holes, a plurality of cooling sleeves are respectively coaxially arranged with the plurality of mounting holes and penetrate through the cooling plates, cooling channels are formed in the cooling plates, two ends of each cooling channel penetrate through the side walls of the cooling plates, and the cooling sleeves are positioned in the cooling channels; The front side of the outer wall of the wire drawing tower is fixedly provided with a beam combiner positioned under the forming mechanism, the top of the beam combiner is provided with a beam combining hole, the beam combining hole penetrates through the beam combiner, the beam combiner is of a double-pair top cone structure, and the inside of the beam combiner is made of brass.
  2. 2. The multi-glass fiber bundle drawing device capable of setting the outer diameter of glass fibers according to claim 1, wherein the connecting assembly comprises fixing blocks and fixing pins, the fixing blocks are fixed at the edge of the bottom of the array type drawing furnace and are uniformly distributed along the circumferential direction of the array type drawing furnace, connecting blocks are symmetrically arranged at two ends of the fixing blocks, the connecting blocks are fixedly arranged on the side wall of a die fixing plate, fixing holes penetrating through the fixing blocks are formed in the end portions, close to the connecting blocks, of the fixing blocks, connecting holes coaxial with the fixing holes and penetrating through the fixing holes are formed in the connecting blocks, the number of the fixing pins is the same as that of the fixing blocks, the fixing pins are respectively inserted into the fixing holes of the fixing blocks, and two ends of the fixing pins respectively penetrate through the connecting holes in the connecting blocks at two ends of the fixing blocks.
  3. 3. The multi-glass fiber bundle drawing device capable of setting the outer diameter of glass fibers according to claim 1, wherein through holes with axes extending in the vertical direction and penetrating through the cooling plate are formed in four corners of the bottom of the cooling plate, connecting bolts coaxial with the through holes are sleeved in the through holes in a sliding mode, and the tops of the connecting bolts penetrate through the array type wire drawing furnace and are in threaded connection with the array type wire drawing furnace.
  4. 4. The multi-glass fiber bundle drawing equipment capable of setting the outer diameter of glass fibers according to claim 1, wherein a transmission groove extending along the vertical direction is formed in the top of the front side of the outer wall of the wire drawing tower, a mounting groove extending along the vertical direction is formed in the bottom of the rear side of the outer wall of the wire drawing tower, the top of the mounting groove is communicated with the bottom of the transmission groove, the rod conveying mechanism comprises a driving piece arranged in the mounting groove, a transmission block sleeved in the transmission groove in a sliding manner along the vertical direction and a rod conveying platform positioned right above the forming mechanism, one end of the transmission block extends out of the transmission groove and is fixedly connected with the rear side wall of the rod conveying platform, and the driving piece is in transmission connection with the transmission block and is used for driving the transmission block to slide along the transmission groove.
  5. 5. The multi-glass fiber bundle drawing device capable of setting the outer diameter of glass fibers according to claim 4, wherein the driving piece is an electric telescopic rod, the fixed end of the electric telescopic rod is fixedly arranged at the bottom of the mounting groove, the telescopic end of the electric telescopic rod stretches into the transmission groove and is fixedly connected with the bottom of the transmission block, rod feeding chucks are fixedly arranged at the bottom of the rod feeding platform, the number of the rod feeding chucks is the same as that of the leak holes, and a plurality of the rod feeding chucks respectively correspond to the leak holes.
  6. 6. The multi-glass fiber bundle drawing device capable of setting the outer diameter of glass fibers according to claim 1, wherein heating holes with axes extending in the vertical direction are formed in the array type wire drawing furnace, the number of the heating holes is the same as that of the leak holes, a plurality of the heating holes are respectively arranged coaxially with the leak holes, heating wires are arranged in the heating holes, and the heating wires extend in the axis direction of the heating holes in a spiral shape.
  7. 7. The multi-glass fiber bundle drawing equipment capable of setting the outer diameter of glass fibers according to claim 1, wherein an optical fiber take-up machine positioned below a beam combiner is arranged on the front side of the outer wall of the drawing tower, the optical fiber take-up machine comprises a transmission shaft rotatably arranged on the front side of the outer wall of the drawing tower, the axis of the transmission shaft extends along the front-back direction of the drawing tower, and a take-up wheel coaxially arranged with the transmission shaft is sleeved on the outer wall of the transmission shaft.

Description

Multi-glass fiber bundle drawing equipment capable of setting outer diameter of glass fiber Technical Field The invention belongs to the technical field of glass fiber bundle drawing, and particularly relates to multi-glass fiber bundle drawing equipment capable of setting the outer diameter of glass fibers. Background There are three methods of drawing multiple glass fiber bundles, namely rod drawing, melt drawing and solThe gel method and the rod drawing method are methods for drawing glass fibers by using glass rods after heating and melting, the existing rod drawing method is generally carried out in a single-row drawing mode, and when the number of single drawing holes is required to be increased, the number of quartz glass rods is increased to two sides, so that the included angle of quartz glass fiber precursors on two sides is overlarge, the drawing operation is not facilitated, and the production efficiency is low. In the Chinese patent with the publication number CN113480164B, a double-row wire drawing device and a forming method of quartz glass fiber are disclosed, wherein the double-row wire drawing device comprises a push rod assembly, a forming assembly and a cluster assembly. The push rod assembly comprises a fixed plate and two rod clamping plates, wherein the two rod clamping plates are spaced apart along the transverse direction and are respectively connected to the fixed plate, and the two rod clamping plates are provided with rod clamping holes extending along the longitudinal direction. The shaping subassembly sets up in the one side that presss from both sides excellent board and be close to the excellent hole of clamp, and shaping subassembly includes two group's type units. The existing multi-glass fiber bundle drawing equipment adopts a double-row wire drawing mode to carry out glass fiber bundle drawing operation. However, as the number of drawing holes increases, the included angle of the quartz glass fiber precursors on both sides becomes too large, which is disadvantageous for the drawing operation. In addition, when processing the quartz glass stick of different diameters or materials, need to change bushing and wire drawing mould of different specifications, and current equipment is comparatively troublesome when changing these parts, leads to the production efficiency and the flexibility of device lower. Disclosure of Invention The invention aims to provide multi-glass fiber bundle drawing equipment capable of setting the outer diameter of glass fibers, and aims to solve the problem that in the prior art, when a bushing and a drawing die with different specifications are replaced, the problem is troublesome. The technical scheme is that the multi-glass fiber bundle drawing device capable of setting the outer diameter of glass fibers comprises a wire drawing tower, wherein a forming mechanism is fixedly arranged in the middle of the front side of the outer wall of the wire drawing tower, and a rod feeding mechanism is arranged at the top of the front side of the outer wall of the wire drawing tower. The forming mechanism comprises an array wire drawing furnace, a die fixing plate positioned below the array wire drawing furnace and a connecting assembly used for fixing the die fixing plate onto the array wire drawing furnace, wherein a plurality of holes with axes extending along the vertical direction are formed in the top of the array wire drawing furnace, the holes are uniformly distributed in a rectangular shape and penetrate through the array wire drawing furnace, a plurality of mounting holes with axes extending along the vertical direction are formed in the die fixing plate, the mounting holes are respectively coaxially arranged with the holes, a heating sleeve is fixedly arranged at the bottom of the inner wall of the mounting hole, an inner hole of the heating sleeve is in a funnel shape, a stretching die is detachably arranged in the inner hole of the heating sleeve, and the outer wall of the stretching die is completely attached to the inner hole of the heating sleeve. The invention has the beneficial effects that the glass fiber precursor can be drawn in a rectangular array mode by adopting the array type wire drawing furnace and the rectangular evenly distributed leak holes, so that the problem of overlarge precursor included angle during multi-beam wire drawing in the prior art is effectively avoided, and the multi-beam glass fiber can be drawn in a more compact and more regular array, thereby improving the stability and efficiency of wire drawing operation. In addition, through the detachable installation's in the heating sleeve drawing die, the quick replacement of mould when having realized different diameters or material glass fiber production, the drawing of the glass fiber of different external diameters can be realized to the drawing die of different specifications of change, has shown the production flexibility and the maintenance convenience of promoting