Method for treating strand with abnormal column flow in glass fiber production process

Abstract

The invention discloses a column flow abnormal precursor processing method in a glass fiber production process, and relates to the field of glass fiber production, the method is characterized in that a column flow abnormal precursor is led out and wound on a winding shaft rotating at a low speed, the winding shaft is connected with a rotation driving mechanism, and the rotation driving mechanism drives the winding shaft to rotate so as to wind the column flow abnormal precursor. According to the method, the column flow abnormal protofilaments are continuously taken away, the phenomenon that normal protofilament production is affected due to breakage of the column flow abnormal protofilaments is avoided, and meanwhile use of water resources is reduced.

Description

Technical Field

[0001] The invention relates to the field of glass fiber production, in particular to a method for processing raw fibers with abnormal column flow in a glass fiber production process. Background Art

[0002] In the wire drawing process of ultrafine glass fiber, the main process is as follows: after the modulated molten glass flows down from a platinum leak plate with multiple holes (such as 1200 holes), it is cooled by cooling spray, and workers wind it on the winding shaft of a high-speed wire drawing machine (such as a rotation speed of more than 3000 revolutions per minute), and then draw the glass liquid into multiple strands (a platinum leak plate with 1200 holes is drawn into 1200 strands) through high-speed winding, each of which has a diameter of 9 microns.

[0003] In normal wire drawing production, each raw wire of the porous leak plate can withstand the drawing of the high-speed wire drawing machine. However, in the actual production process, due to the quality of the leak plate, process temperature, impurities and bubbles in the glass liquid, etc., the raw wires flowing from individual holes cannot withstand the tension of the wire drawing machine winding shaft. Such raw wires are called abnormal column flow raw wires; when the raw wires with abnormal column flow are subjected to the tension of the high-speed wire drawing machine winding shaft, it is easy for a single raw wire to break. When the raw wires with abnormal column flow break, the floating broken wires will immediately affect the raw wires of other adjacent holes. The already thin and fragile raw wires will immediately break in a large area from "point to surface", causing the whole roll of raw wire to be downgraded or scrapped, seriously affecting normal production operations.

[0004] In order to solve the above problems in actual production, the current method is to use the natural flow of water to lead away the abnormal raw wires flowing down the problem holes separately without drawing them through a high-speed wire drawing machine. The low-speed flow of water can not only carry the raw wires away, but also will not break them, effectively ensuring the continuity of the wire drawing operation. However, this method currently has the disadvantages of "a large amount of water resources are wasted for industrial production and in the concept of environmental protection, and at the same time, these water resources will be treated as industrial water for wastewater treatment, resulting in higher expenditures in the wastewater treatment link of the factory, greatly increasing production costs." To this end, we need to explore new technical solutions to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a method for processing raw fibers with abnormal flow in the production process of glass fiber in response to the above-mentioned problems, so as to continuously carry away the raw fibers with abnormal flow, avoid the breakage of the raw fibers with abnormal flow and affect the normal raw fiber production, and also reduce the use of water resources.

[0006] The technical solution adopted by the present invention is as follows: a method for processing raw fibers with abnormal flow in the production process of glass fiber, which leads out the raw fibers with abnormal flow and winds them on a winding shaft rotating at a low speed. The winding shaft is connected to a rotating drive mechanism, and the rotating drive mechanism drives the winding shaft to rotate to achieve winding of the raw fibers with abnormal flow.

[0007] Furthermore, the rotation speed of the winding shaft is 100-200 rpm, and the rotation diameter of the winding shaft is 220 mm-280 mm.

[0008] Furthermore, the lead-out angle α of the abnormal column flow filament does not exceed 20°.

[0009] Furthermore, for the abnormal flow filament with an extraction angle α greater than 20°, a smooth small rod can be set below the problematic hole, with the axis of the problematic hole as the center line and a cone angle β not exceeding 30°. The abnormal flow filament passes around the smooth small rod and is then wound around the winding shaft.

[0010] Furthermore, the smooth small rod is a graphite rod.

[0011] Furthermore, the installation position of the winding shaft is selected on a platform close to the platinum leak plate.

[0012] Furthermore, the rotary drive mechanism is a low-speed motor, and the rotary drive mechanism is coaxially fixedly connected with the output shaft of the low-speed motor around the shaft.

[0013] Furthermore, the rotary drive mechanism is a high-speed motor, and the shaft is connected to the output shaft of the high-speed motor through a reducer.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] The new solution disclosed in the present invention adopts a low-speed rotating winding shaft to pull the abnormal flow raw wire at a low speed and wind it into a roll, so as to achieve continuous winding of the abnormal flow raw wire while reducing the risk of the abnormal flow raw wire being broken, and there is no need to increase the water consumption. Compared with the method described in the background technology, the solution disclosed in the present invention saves water resources while ensuring the normal operation of the wire drawing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0017] Figure 1 is a schematic diagram of the structure of this method;

[0018] Figure 2 is a schematic diagram for drawing out the angle α;

[0019] Figure 3 is a schematic diagram of the cone angle β;

[0020] Markings in the figure: 1- platinum leak plate; 11- problematic hole; 2- abnormal flow original wire; 3- winding axis; 4- rotating drive mechanism; 5- normal original wire; 6- smooth small rod. DETAILED DESCRIPTION

[0021] In the description of this specification, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of this specification is usually placed when used. It is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this specification.

[0022] In addition, if the terms "horizontal" or "vertical" appear in the description of this specification, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this specification, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between the internal parts of two elements.

[0024] Example 1

[0025] like Figure 1-Figure 3 As shown, a method for processing raw yarns with abnormal flow in a glass fiber production process is shown, wherein the raw yarns 2 with abnormal flow are led out and wound on a winding shaft 3 rotating at a low speed, and the winding shaft 3 is connected to a rotating drive mechanism 4, and the rotating drive mechanism 4 drives the winding shaft 3 to rotate to achieve winding of the raw yarns 2 with abnormal flow.

[0026] The present embodiment adopts a winding shaft 3 that rotates at a low speed to pull the abnormal flow raw wire 2 at a low speed and wind it into a roll, so as to continuously carry away the abnormal flow raw wire 2 while reducing the risk of the abnormal flow raw wire 2 being broken, and there is no need to increase the water consumption. Compared with the method described in the background technology, the scheme disclosed in the present invention saves water resources while ensuring the normal operation of the wire drawing operation.

[0027] Example 2

[0028] Based on Example 1, a specific implementation method that can be implemented is further proposed.

[0029] A feasible implementation method is that the rotation speed of the winding shaft 3 is 100-200rpm, and the rotation diameter of the winding shaft 3 is 220mm-280mm, which actually limits the linear speed of the winding shaft 3, so that the winding shaft 3 can continuously wind the abnormal column flow raw wire 2, effectively reducing the risk of the abnormal column flow raw wire 2 being broken.

[0030] It should be noted that the speed limitation is the basis for achieving the purpose of the present invention. After repeated experiments and theoretical research, if the rotation speed of the winding shaft 3 is too small and the rotation diameter is too small, that is, the linear speed of the winding shaft 3 winding the abnormal column flow raw wire 2 is too low, the glass liquid is prone to droplets due to untimely wire drawing. After the droplets condense, larger protrusions are formed on the abnormal column flow raw wire 2, which are usually spherical or teardrop-shaped. The position of the protrusion is the weak point where the abnormal column flow raw wire 2 breaks. Furthermore, if the rotation speed of the winding shaft 3 is too high and the rotation diameter is too large, the abnormal column flow raw wire 2 is prone to breakage due to "inability to withstand tension" as described in the background technology. Therefore, the rotation speed and rotation diameter of the winding shaft 3 are generated by comprehensively considering various factors (including the single diameter of the raw wire). For the single raw wire with a diameter of 9 microns in the background technology, a winding shaft 3 with a rotation speed of 180rpm and a rotation diameter of 250mm can be selected.

[0031] A feasible implementation method is as follows: Figure 2 As shown, the abnormal column flow filament 2 is formed by the glass liquid flowing out of the problematic hole. The glass liquid is affected by gravity and flows out of the problematic hole 11 along the direction of gravity. If the lead-out angle α is too large, it is difficult for the glass liquid to be drawn along the lead-out direction, that is, the flow is easily interrupted at the location of the problematic hole, and continuous winding cannot be achieved. For this reason, the lead-out angle α of the abnormal column flow filament 2 does not exceed 20° to ensure that the glass liquid can be continuously drawn and wound from the lead-out direction.

[0032] Furthermore, if Figure 3 As shown, for the abnormal flow original wire 2 with a lead-out angle α greater than 20°, a smooth rod 6 can be set below the problematic hole, with the axis of the problematic hole as the center line, in a conical range with a cone angle β not exceeding 30°. The abnormal flow original wire 2 passes around the smooth rod 6 and is then wound around the winding shaft 3. The purpose of using the smooth rod 6 for transition is to ensure that the glass liquid can continue to be drawn and wound from the lead-out direction.

[0033] Furthermore, the smooth rod 6 is a graphite rod, which has a self-lubricating effect and can prevent the abnormal column flow filament 2 from breaking due to friction.

[0034] A feasible implementation manner is that the installation position of the winding shaft 3 is selected on a platform close to the platinum leak plate 1 to reduce the length of the unwound column flow abnormality original wire 2 as much as possible, that is, to reduce the length of the column flow abnormality original wire 2 between the problem hole 11 and the winding shaft 3. By reducing the length, the mobility of the column flow abnormality original wire 2 is reduced. The longer the column flow abnormality original wire 2 is, the easier it is to swing, and the larger the swing amplitude is, thereby reducing the possibility of the column flow abnormality original wire 2 breaking due to swinging and / or causing damage to the normal original wire 5 during swinging.

[0035] Example 3

[0036] On the basis of any one of the implementations in Examples 1-2, the rotary drive mechanism 4 is a low-speed motor, and the shaft 3 is coaxially fixedly connected to the output shaft of the low-speed motor.

[0037] In another embodiment, the rotary drive mechanism 4 is a high-speed motor, and the shaft 3 is connected to the output shaft of the high-speed motor through a reducer, so that the shaft 3 can rotate at a low speed through the reducer.

[0038] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A method for treating raw fibers with abnormal flow in a glass fiber production process, characterized in that: The abnormal column flow yarn (2) is led out and wound on a winding shaft (3) rotating at a low speed. The winding shaft (3) is connected to a rotating drive mechanism (4). The rotating drive mechanism (4) drives the winding shaft (3) to rotate to achieve winding of the abnormal column flow yarn (2).

2. The method for treating the abnormally shaped raw yarn (2) according to claim 1, characterized in that: The rotation speed of the winding shaft (3) is 100-200 rpm, and the rotation diameter of the winding shaft (3) is 220 mm-280 mm.

3. The method for processing raw yarn with abnormal flow according to claim 1, characterized in that: The lead-out angle α of the abnormal column flow filament (2) does not exceed 20°.

4. The method for processing raw yarn with abnormal column flow according to claim 3, characterized in that: For the abnormal column flow original wire (2) with a lead-out angle α greater than 20°, a smooth small rod (6) can be arranged below the problematic hole, with the axis of the problematic hole as the center line, within a conical range with a cone angle β not exceeding 30°, and the abnormal column flow original wire (2) passes around the smooth small rod (6) and is then wound around the winding shaft (3).

5. The method for processing raw yarn with abnormal flow according to claim 4, characterized in that: The smooth small rod (6) is a graphite rod.

6. The method for processing raw yarn with abnormal flow according to claim 1, characterized in that: The installation position of the winding shaft (3) is selected on a platform close to the platinum leak plate (1).

7. The method for processing raw yarn with abnormal flow according to any one of claims 1 to 6, characterized in that: The rotary drive mechanism (4) is a low-speed motor, and is coaxially fixedly connected around the shaft (3) to the output shaft of the low-speed motor.

8. The method for processing raw yarn with abnormal flow according to any one of claims 1 to 6, characterized in that: The rotary drive mechanism (4) is a high-speed motor, and the shaft (3) is connected to the output shaft of the high-speed motor via a reducer.

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