Special glass fiber forming device and forming process

Abstract

The invention discloses a special glass fiber forming device and a forming process, and relates to the technical field of special glass fibers. The special glass fiber forming device comprises a smelting furnace and an operation bin, an infiltration cavity, a regulation and control cavity, a drying cavity and a containing cavity are formed in the operation bin; the infiltrating liquid positioned at the middle lower part of the infiltrating cavity is provided with a first liquid level; glass fibers discharged by the bushing assembly are sequentially crimped with the first roller, the second roller and the third roller and then are wound on the take-up machine; the first roller is used for converging a plurality of glass fibers to obtain a glass fiber bundle, and the glass fiber bundle comprises a vertically arranged draining part; the top end of the draining part is flush with the top surface of the infiltration cavity, and the bottom end is flush with the first liquid level. According to the invention, the draining process is added before the curing process, and the draining stroke and the draining time are controlled by adjusting the height position of the first liquid level, so that the residual amount (thickness) of the infiltrating liquid at the top end of the draining part can be controlled, the coating amount of the infiltrating liquid on the glass fiber is controlled, and the control capability on the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of special glass fiber technology, specifically to a special glass fiber forming device and forming process. Background Technology

[0002] Glass fiber (GFB) is an inorganic non-metallic material produced by drawing molten raw materials into fibrous strands using external force. Specialty glass fiber possesses unique properties, and basalt fiber is one of the emerging specialty glass fiber materials.

[0003] After special glass fibers are drawn into filaments, they need to be coated with an impregnation liquid to modify or (coat) protect them. In traditional technology, an oiling machine is usually used to apply the impregnation liquid: the special glass fibers are first laid horizontally, and then the oiling roller of the oiling machine presses the special glass fibers into the oil tank in a U-shape; however, this method cannot control the amount of coating (if the amount of coating is too large, it will lead to over-modification and material waste; if the amount of coating is insufficient, it will lead to insufficient modification and failure to form a continuous and complete protective film). Summary of the Invention

[0004] In order to overcome the problem of "inability to control the coating amount of the impregnation liquid" in the above-mentioned background technology, the present invention provides a special glass fiber forming device and forming process.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A special glass fiber forming device includes a furnace, with a discharge port at the bottom of a melting and modulation chamber within the furnace, and a stencil assembly installed at the discharge port; it also includes a working chamber; the working chamber includes an impregnation chamber, a control chamber located beside the impregnation chamber, a drying chamber located above the impregnation chamber, and a receiving chamber located above the drying chamber and used to accommodate the furnace; the impregnation liquid in the lower part of the impregnation chamber has a first liquid level; the bottom of the impregnation chamber is provided with a first roller and a second roller, and the drying chamber is provided with a third roller; glass fibers discharged through the stencil assembly are sequentially pressed against the first roller, the second roller, and the third roller and then wound onto a take-up machine; the first roller is used to gather several glass fibers to form a glass fiber bundle, the glass fiber bundle including a vertically arranged asphalt section; the top of the asphalt section is flush with the top surface of the impregnation chamber, and the bottom is flush with the first liquid level; the height of the first liquid level is adjustable to change the asphalt travel, thereby adjusting the asphalt time and film thickness of the glass fibers.

[0006] As a further optimization of the present invention, the wetting liquid located in the lower part of the control chamber is provided with a second liquid surface; a gas layer is provided above the second liquid surface; the bottom of the wetting chamber and the bottom of the control chamber are connected; and a first air pump is also included; the first air pump can adjust the thickness of the gas layer to change the height of the second liquid surface, thereby adjusting the height of the first liquid surface.

[0007] As a further optimization of the present invention, the glass fiber bundle includes a curing section disposed in the drying chamber, the curing section being disposed above the asphalt section; the bottom end of the curing section is flush with the bottom surface of the drying chamber, and the top end is pressed against the third roller; the height of the third roller is adjustable to change the height of the top end of the curing section and the ambient temperature, so as to adapt the amount of impregnation liquid, curing time and curing efficiency of the glass fiber surface to each other.

[0008] As a further optimization of the present invention, the curing part is arranged vertically; the bottom end of the curing part is connected to the top end of the asphalt section; and the bottom end of the asphalt section is pressed against the second roller.

[0009] As a further optimization of the present invention, the first roller is disposed beside the second roller, and the third roller is disposed above the second roller.

[0010] As a further optimization of the present invention, the furnace is disposed within the receiving cavity, and the furnace is disposed obliquely above the third roller.

[0011] As a further optimization of the present invention, the side wall of the drying chamber is provided with a sealing plate, which can move vertically to drive the third roller to move vertically. The outer side wall of the sealing plate is provided with a plug-in block, one end of which is inserted into a strip hole in the side wall of the working chamber, the strip hole being located beside the drying chamber; the other end of the plug-in block is connected to a vertically arranged linear actuator; the plug-in block is provided with a tapered through hole for accommodating fiberglass bundles, the larger diameter end of the tapered through hole pointing towards the take-up machine, and the smaller diameter end pointing towards the third roller.

[0012] As a further optimization of the present invention, the furnace includes a furnace body and heating electrodes installed on the side wall of the furnace body.

[0013] As a further optimization of the present invention, the heating electrode includes an arc-shaped electrode and a first terminal connected to the arc-shaped electrode, the first terminal being connected to an external power supply; the leak plate assembly includes a leak plate with a leak hole and a second terminal connected to the leak plate, the second terminal being connected to an external power supply.

[0014] A special glass fiber forming process, namely, the steps of manufacturing glass fiber using the aforementioned special glass fiber forming device, include: S1, basalt is added into the furnace and heated to a molten state, and then drawn into glass fiber through the stencil assembly; S2, the glass fiber passes through the drying chamber and enters the impregnation chamber, and is then immersed in the impregnation liquid; during the process, the glass fiber is wound to form the glass fiber bundle; S3, the glass fiber bundle immersed in the impregnation liquid moves upward to enter the drying chamber; during the process, the impregnation liquid on the surface of the glass fiber bundle is drained and cured sequentially; S4, the glass fiber bundle passes through the conical through hole and is wound onto the take-up machine.

[0015] In summary, the present invention has at least one of the following advantages: (1) In this invention, a draining process is added before the curing process. By adjusting the height of the first liquid surface, the draining stroke and draining time can be controlled, thereby controlling the remaining amount (thickness) of the wetting liquid at the top of the draining section, thus controlling the amount of wetting liquid coated on the glass fiber and improving the control of product quality.

[0016] (2) The bottom end of the immersion chamber and the bottom end of the control chamber are connected to each other and form a communicating vessel structure. The height of the gas layer is controlled by the first air pump, which can conveniently control the height position of the second liquid surface, and then control the height position of the first liquid surface. It has the characteristics of simple operation and strong controllability.

[0017] (3) The third roller can be raised and lowered to change the height position of the top of the curing section, that is, to change the curing stroke, curing time and the maximum curing temperature of the impregnation liquid on the surface of the glass fiber bundle, so as to adapt to the coating amount (thickness) of the impregnation liquid, thereby avoiding the problem of insufficient curing / over-curing and improving product quality.

[0018] (4) If the height of the first liquid level can be adjusted, the length of the glass fiber immersed in the wetting liquid can be adjusted, and the immersion time and reaction time of the glass fiber in the wetting liquid can be adjusted, thereby conveniently adjusting the thickness of the permeable membrane structure to meet industrial needs.

[0019] (5) Use the residual heat of the furnace and glass fiber to cure (dry) the glass fiber, realize waste heat recovery, and achieve energy saving effect.

[0020] (6) The drying chamber sidewall is equipped with a sealing plate. The sealing plate can block the strip hole while driving the third roller to move vertically, thereby reducing the heat loss at the strip hole position and achieving the effect of energy saving.

[0021] (7) The end with a relatively larger diameter tapered through hole points to the take-up machine, and the end with a relatively smaller diameter points to the third roller. This is used to accommodate fiberglass bundles with variable tilt angles (when the third roller moves to a different height from the take-up reel, the fiberglass bundle located between the third roller and the take-up machine will tilt), thereby reducing the problem of contact and wear between the fiberglass bundle and the plug block, and improving the product quality of fiberglass. Attached Figure Description

[0022] The present application will be further explained below with reference to the accompanying drawings: Figure 1 This is a front view diagram of the vertical section of the furnace structure; Figure 2 This is a top view of the cross section of the furnace structure; Figure 3 This is a bottom view of the sprue assembly structure; Figure 4 This is a front view of the overall structure of the present invention. Figure 5 A front view diagram showing the position and structure of the first and second partitions; Figure 6 This is a forward view of the first liquid level rise state; Figure 7 A front view diagram showing the state of the wetting liquid as the asphalt moves upward; Figure 8 A schematic diagram of the location of the sealing plate and the plug-in block and the front view of the structural elevation section; Figure 9 A top-view diagram showing the location of the sealing plate and the plug-in block, and the cross-section of the structure.

[0023] Explanation of reference numerals in the attached figures: In the picture, 1. Furnace; 11. Furnace body; 110. Melting and conditioning chamber; 1101. Feeding port; 11011. Feeding cylinder; 1102. Discharge port; 111. Refractory layer; 112. Sealing layer; 113. Support layer; 114. Insulation layer; 115. Outer shell; 12. Heating electrode; 121. Arc electrode; 122. First terminal; 13. Squeegee assembly; 131. Squeegee; 1311. Squeegee hole; 132. Second terminal; 2. Working chamber; 201. Immersion chamber; 2011. First roller; 2012. Second roller; 2013. Draining chamber; 202. Control chamber; 2021. Gas layer; 203. Drying chamber; 2031. Third roller; 2032. Strip hole; 2033. Sealing plate; 2034. Insert block; 20341. Tapered through hole; 2035. Ball linear guide pair; 20351. Slider; 20352. Guide rail; 2036. Linear actuator; 204. Receiving chamber; 21. First partition; 22. Second partition; 23. Support plate; 3. Immersion liquid; 31. First liquid surface; 32. Second liquid surface; 4. Take-up machine; 41. Post; 42. Take-up reel; 5. First air pump; 51. Air supply pipe; 52. First valve body; 6. Fiberglass; 7. Fiberglass bundles; 71. Asphalt section; 72. Curing section; 8. Level gauge. Detailed Implementation

[0024] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows: Reference Figures 1-2 This embodiment provides a special glass fiber forming device, including a furnace 1. The furnace 1 includes a furnace body 11 and heating electrodes 12 (using three-phase power supply) installed on the side wall of the furnace body 11. The side wall of the furnace body 11 is provided with a refractory layer 111 (e.g., refractory brick), a sealing layer 112 (e.g., heat-resistant ceramic material), a support layer 113 (e.g., titanium alloy material), a heat insulation layer 114 (e.g., porous ceramic material), and an outer shell 115 (e.g., steel material) from the inside to the outside.

[0025] Reference Figures 1-2 The heating electrode 12 includes an arc-shaped electrode 121 (e.g., made of molybdenum, platinum, or platinum-coated molybdenum material) and a first terminal 122 connected to the arc-shaped electrode 121 (e.g., by an integral fixed connection). The arc-shaped electrode 121 is fixedly installed on the inner side wall of the refractory layer 111 by heat-resistant bolts (e.g., made of platinum-rhodium alloy material). The side wall of the furnace body 11 is provided with a through-hole. The first terminal 122 is disposed in the through-hole and is insulated from the side wall of the furnace body 11 (e.g., an insulating sleeve is installed between the first terminal 122 and the side wall of the furnace body 11). The first terminal 122 is connected to an external power supply via a wire.

[0026] Reference Figures 1-3 The perforated plate assembly 13 includes a perforated plate 131 with (a plurality of) perforations 1311 and a second terminal 132 connected to the perforated plate 131 (e.g., by an integral fixed connection). The second terminal 132 is connected to an external power supply. The perforated plate 131 is made of platinum-rhodium alloy. The bottom surface of the bottom plate of the furnace 1 is fitted with an annular refractory brick (with insulating properties). The refractory brick is fixedly connected to the perforated plate 131 by heat-resistant bolts (e.g., made of platinum-rhodium alloy).

[0027] Reference Figures 1-3 The furnace body 11 is cylindrical in shape and has a melting and modulation chamber 110 in its inner cavity. The basalt in the melting and modulation chamber 110 is heated by the heating electrode 12 and becomes molten and fluid. After passing through the stencil 131, it is drawn into wire.

[0028] Reference Figures 1-3 The bottom end of the melting and conditioning chamber 110 inside the furnace 1 is provided with a discharge port 1102, and a perforated plate assembly 13 is installed at the discharge port 1102. The top end of the annular refractory brick is connected to the discharge port 1102, and the bottom end is connected to the perforation 1311. The molten basalt in the melting and conditioning chamber 110 flows sequentially through the discharge port 1102, the inner cavity of the annular refractory brick, and the perforation 1311, thereby obtaining special glass fiber 6 (specifically basalt fiber).

[0029] Reference Figure 4 and Figure 5 The invention also includes a working chamber 2; the working chamber 2 is provided with an impregnation chamber 201, a regulating chamber 202 located beside the impregnation chamber 201, a drying chamber 203 located above the impregnation chamber 201, and a receiving chamber 204 located above the drying chamber 203 and used to accommodate the furnace 1. A first partition 21 (for separating the impregnation chamber 201 and the regulating chamber 202), a second partition 22 (for separating the impregnation chamber 201 and the drying chamber 203), and a support plate 23 (for separating the drying chamber 203 and the receiving chamber 204) are fixedly installed in the working chamber 2 by bolts. Several vertical support columns are installed in the impregnation chamber 201, the regulating chamber 202, the drying chamber 203, and the receiving chamber 204 respectively to improve structural stability and prevent collapse.

[0030] Reference Figure 4 and Figure 6 The lower part of the immersion cavity 201 is filled with immersion liquid 3, and the lower part of the control cavity 202 is filled with immersion liquid 3; the bottom of the immersion cavity 201 and the bottom of the control cavity 202 are connected (the bottom of the first partition 21 is provided with an opening), thus forming a communicating vessel structure.

[0031] Reference Figure 4 and Figure 6 The impregnation liquid 3 located in the lower part of the impregnation chamber 201 has a first liquid surface 31. A first roller 2011 and a second roller 2012 are provided at the bottom of the impregnation chamber 201, both immersed in the impregnation liquid 3. The first roller 2011 is rotatable to improve the smoothness of the movement of the glass fiber 6; the second roller 2012 is rotatable to improve the smoothness of the movement of the glass fiber 6. The first roller 2011 is rotatably connected to the side wall of the working chamber 2 via a first rotating shaft, and the second roller 2012 is rotatably connected to the side wall of the working chamber 2 via a second rotating shaft.

[0032] Reference Figure 4To improve the smoothness of rotation of the first roller 2011 and the second roller 2012, a first motor for driving the first roller 2011 and a second motor for driving the second roller 2012 are installed on the outer wall of the working chamber 2. The housing of the first motor is fixedly connected to the outer wall of the working chamber 2 with bolts. The first output shaft of the first motor is inserted into a first through hole in the side wall of the working chamber 2. The first output shaft is coaxially and fixedly connected to the first rotating shaft, and the first rotating shaft is coaxially and fixedly connected to the first roller 2011, thus enabling the first motor to drive the first roller 2011 to rotate. Similarly, the housing of the second motor is fixedly connected to the outer wall of the working chamber 2 with bolts. The second output shaft of the second motor is inserted into a second through hole in the side wall of the working chamber 2. The second output shaft is coaxially and fixedly connected to the second rotating shaft, and the second rotating shaft is coaxially and fixedly connected to the second roller 2012, thus enabling the second motor to drive the first roller 2011 to rotate. The rotation speeds of both the first and second motors are adapted to the take-up speed of the take-up machine 4. The first output shaft is connected to the side wall of the working chamber 2 via a waterproof bearing; the second output shaft is also connected to the side wall of the working chamber 2 via a waterproof bearing.

[0033] Reference Figure 4 and Figure 6 The drying chamber 203 is equipped with a third roller 2031, which can rotate to improve the smoothness of the movement of the glass fiber bundle 7. The glass fiber 6 discharged through the stencil assembly 13 is sequentially pressed with the first roller 2011, the second roller 2012 and the third roller 2031 and then wound onto the take-up machine 4. The first roller 2011 is used to gather several glass fibers 6 to obtain a (untwisted) glass fiber bundle 7, which includes a vertically arranged asphalt section 71. The top end of the asphalt section 71 is flush with the top surface of the impregnation chamber 201 and the bottom end is flush with the first liquid surface 31. The take-up machine 4 includes a rotatable take-up reel 42, which pulls the glass fiber 6 continuously from the spinneret assembly 13 and moves it in a Z-shape along the first roller 2011, the second roller 2012, and the third roller 2031 until it is wound into the fourth annular groove of the take-up reel 42. The fourth annular groove is located in the middle of the circumference of the take-up reel 42. The take-up machine 4 also includes a column 41 for supporting the take-up reel 42. The bottom end of the column 41 is fixedly mounted to the top surface of the top plate of the control chamber 202 by bolts. The top end of the column 41 is equipped with a drive motor for driving the rotation of the take-up reel 42. The housing of the drive motor is fixedly connected to the column 41 by bolts. The drive shaft of the drive motor is coaxially arranged with and fixedly connected to the take-up reel 42 (e.g., by bolts).

[0034] Reference Figure 4The fiberglass 6 located between the sprue assembly 13 and the first roller 2011 is in an inverted umbrella shape; the fiberglass bundle 7 located between the first roller 2011 and the second roller 2012 is horizontally arranged and straight; the fiberglass bundle 7 located between the second roller 2012 and the third roller 2031 is vertically arranged and straight; and the fiberglass bundle 7 located between the third roller 2031 and the take-up device 4 is horizontally arranged and straight. The take-up device 4 is installed on the top surface of the top plate of the control cavity 202, and its height is adapted to the height of the third roller 2031.

[0035] The asphalt fiber 71 can move along the length of the glass fiber bundle 7, thereby uniformly controlling the amount of wetting liquid 3 adhering to different positions of the glass fiber bundle 7.

[0036] The first roller 2011 has a first annular groove in the center of its circumference for securing the fiberglass 6, the second roller 2012 has a second annular groove in the center of its circumference for securing the fiberglass bundle 7, and the third roller 2031 has a third annular groove in the center of its circumference for securing the fiberglass bundle 7. The cross-sections of the first, second, and third annular grooves are all V-shaped to stably secure the fiberglass 6 / fiberglass bundle 7.

[0037] Impregnation liquid 3 (such as polyvinyl acetate, polyester resin, polyacrylic resin, epoxy resin, and polyurethane resin) is used to modify the surface of glass fiber 6; therefore, the amount of impregnation liquid 3 needs to be controlled, as too much or too little will have negative effects. Traditionally, an oiling roller is used to apply the impregnation liquid 3 to the surface of glass fiber 6, but this method makes it difficult to control the amount of impregnation liquid 3. To solve this problem, refer to... Figure 4 and Figure 6 In this invention, the immersion cavity 201 is provided with a draining cavity 2013. The top surface of the draining cavity 2013 is level with the top surface of the immersion cavity 201 (and also level with the top of the draining section 71), and the bottom surface of the draining cavity 2013 is level with the first liquid surface 31 (and also level with the bottom of the draining section 71). Figure 7 After the glass fiber bundle 7 is removed from the impregnation liquid 3, it moves upward in the draining chamber 2013. During this process, the impregnation liquid 3 adhering to the surface of the drain section 71 flows downward under its own weight. That is, along the upward direction, the thickness of the impregnation liquid 3 adhering to the surface of the drain section 71 decreases (i.e., the amount decreases). Therefore, by adjusting the height of the draining chamber 2013 (i.e., the height of the drain section 71), the draining time can be adjusted, thereby adjusting the amount of impregnation liquid 3 adhering to the surface of the top position of the drain section 71 (after the glass fiber bundle 7 enters the curing section 72 from the top of the drain section 71, the impregnation liquid 3 on the surface cures quickly, so there will be no further reduction of the impregnation liquid 3).

[0038] On one hand, the height of the first liquid level 31 can be adjusted to change the height of the draining chamber 2013 and the draining section 71 (specifically, keeping the height of the top of the draining section 71 constant while changing the height of the bottom of the draining section 71), thereby adjusting the draining time of the glass fiber 6 and controlling the (remaining) amount of wetting liquid 3 at the top of the draining section 71 (i.e., controlling the amount of wetting liquid 3 entering the drying chamber 203). Therefore, when the first liquid level 31 has a suitable height, a film of suitable thickness can be formed on the surface of the glass fiber 6 after drying (the wetting liquid 3 directly solidifies to form a film structure).

[0039] On the other hand, the height of the first liquid level 31 can be adjusted to change the immersion time of the glass fiber 6 in the wetting liquid 3, thereby adjusting the reaction time between the glass fiber 6 and the wetting liquid 3 and controlling the degree of modification of the glass fiber 6 (e.g., film thickness). Therefore, when the first liquid level 31 has a suitable height, a film of suitable thickness can be formed on the surface of the glass fiber 6 after drying (the wetting liquid 3 penetrates into the surface of the glass fiber 6 or reacts chemically with the surface of the glass fiber 6 to form a permeable film structure).

[0040] Reference Figure 4 and Figure 6 During the rise of the first liquid level 31, the height of the draining tube 71 decreases (profit H1 decreases to H2), which shortens the draining time, increases the amount of wetting liquid 3 adhering to the surface of the top position of the draining tube 71 (increases the thickness), increases the amount of wetting liquid 3 entering the drying chamber 203, increases the amount of wetting liquid 3 on the surface of the final glass fiber 6 product, and improves the degree of modification (increases the film thickness); conversely, the degree of modification decreases (increases the film thickness).

[0041] Reference Figure 4 and Figure 6 During the rise of the first liquid level 31, the height of the asphalt 71 decreases (the profit H1 decreases to H2), which prolongs the time that the glass fiber 6 is immersed in the wetting liquid 3, prolongs the chemical reaction time, and increases the degree of modification (increases the film thickness); conversely, the degree of modification decreases (increases the film thickness).

[0042] The second roller 2012 is located below the asphalt section 71, and the third roller 2031 is located above the asphalt section 71.

[0043] Reference Figure 4 and Figure 6, the infiltration liquid 3 located in the middle and lower part of the regulation cavity 202 has a second liquid level 32; above the second liquid level 32, there is a gas layer 2021. The gas layer 2021 is located in the regulation cavity 202 and can be sealed for pressure maintenance (and thus for stabilizing the height position of the second liquid level 32); the bottom of the infiltration cavity 201 is connected to the bottom of the regulation cavity 202; it further includes a first air pump 5. The first air pump 5 can adjust the thickness of the gas layer 2021 to change the height of the second liquid level 32, for adjusting the height of the first liquid level 31. When the first air pump 5 presses the outside gas into the gas layer 2021, the thickness of the gas layer 2021 increases, the height of the second liquid level 32 decreases, and the height of the first liquid level 31 increases; conversely, when the first air pump 5 discharges the gas in the gas layer 2021 (to outside the operation bin 2), the thickness of the gas layer 2021 decreases, the height of the second liquid level 32 rises, and the height of the first liquid level 31 decreases.

[0044] Refer to Figure 6 , an air pipe 51 is inserted into the communication hole at the top end of the side wall of the regulation cavity 202 (the outer side wall of the air pipe 51 and the inner side wall of the communication hole are sealed and fixedly connected through bolts and sealing rings). One end opening position of the air pipe 51 is connected to the first air pump 5, and a first valve body 52 is installed at the other end. The first valve body 52 can be opened and closed to control the sealing state of the gas layer 2021. When the first valve body 52 is opened, a passage is formed between the first air pump 5 and the gas layer 2021, and the first air pump 5 can press the outside gas into the gas layer 2021 or extract the gas in the gas layer 2021. When the first valve body 52 is closed, the gas layer 2021 is sealed and pressure maintained, for stabilizing the height positions of the first liquid level 31 and the second liquid level 32.

[0045] When the infiltration liquid 3 has antioxidant properties, there is air in the gas layer 2021, then the first air pump 5 can directly press the outside air into the gas layer 2021. When the infiltration liquid 3 has easy oxidation properties, the gas in the gas layer 2021 is an inert gas (such as helium, neon, argon, etc.). The end of the first air pump 5 far from the air pipe 51 is connected to a gas storage cylinder through a gas pipe, and the first air pump 5 presses the inert gas in the gas storage cylinder into the gas layer 2021 to avoid the oxidation of the infiltration liquid 3.

[0046] Refer to Figure 4 And Figure 8The fiberglass bundle 7 also includes a curing section 72 disposed within the drying chamber 203, which is positioned above the asphalt section 71. The drying chamber 203 is located on the outer periphery of the top end of the fiberglass 6, and the stencil assembly 13 is located above the drying chamber 203. The residual heat of the fiberglass 6 located at the stencil assembly 13 and the residual heat of the outer surface of the furnace 1 are transferred to the curing section 72 via air, thereby curing (e.g., drying) the impregnation liquid 3 on the surface of the curing section 72. The fiberglass bundle 7 just pulled out by the stencil assembly 13 has a high temperature. This invention utilizes this residual heat to cure (dry) the impregnation liquid 3, achieving heat recovery and utilization, and achieving energy saving.

[0047] Reference Figure 4 and Figure 8 The bottom end of the curing section 72 is flush with the bottom surface of the drying chamber 203, and the top end is pressed against the third roller 2031. The height of the third roller 2031 can be adjusted to change the height of the top end of the curing section 72 and the ambient temperature at the top end of the curing section 72 (since the furnace 1 is located above the drying chamber 203, when the height of the third roller 2031 increases, the distance between the top end of the curing section 72 and the furnace 1 decreases, the temperature of the air around the curing section 72 increases, the temperature of the top end of the curing section 72 itself increases, and the curing efficiency of the impregnation liquid 3 at the top end of the curing section 72 increases; conversely, when the height of the third roller 2031 decreases, the distance between the top end of the curing section 72 and the furnace 1 increases, and the curing efficiency of the curing section 72 increases). The decrease in ambient air temperature, the decrease in temperature at the tip of the curing section 72, and the decrease in curing efficiency of the wetting liquid 3 at the tip of the curing section 72 are used to adapt the amount of wetting liquid 3 on the surface of the glass fiber 6 (specifically the curing section 72), curing time (changes in the height of the curing section 72, i.e., changes in the drying stroke of the glass fiber bundle 7, will cause changes in curing time), and curing efficiency (changes in curing efficiency will cause changes in ambient temperature) to each other (the more wetting liquid 3, the longer the curing time and the higher the curing efficiency are required to avoid under-curing; the less wetting liquid 3, the shorter the curing time and the lower the curing efficiency are required to avoid over-drying). The drying stroke is the same as the curing stroke.

[0048] Reference Figure 4 and Figure 8 The curing section 72 is vertically arranged; the bottom end of the curing section 72 is integrally connected to the top end of the asphalt section 71; the bottom end of the asphalt section 71 is pressed into the second roller 2012.

[0049] Reference Figure 4 The first roller 2011 is located next to the second roller 2012, and the third roller 2031 is located above the second roller 2012.

[0050] Reference Figure 4 and Figure 5The furnace 1 is installed inside the receiving cavity 204 and pressed and fixed onto the support plate 23. The furnace 1 is positioned diagonally above the third roller 2031. The support plate 23 has side openings to connect the receiving cavity 204 and the drying cavity 203, allowing gas exchange to occur and heat exchange to be achieved.

[0051] Reference Figure 1 and Figure 4 A feeding cylinder 11011 is inserted into the top of the receiving cavity 204. The top opening of the feeding cylinder 11011 is located in the first hole in the top plate of the receiving cavity 204. The bottom opening of the feeding cylinder 11011 is connected to the feeding port 1101. The feeding port 1101 is provided with a door panel that can be opened and closed.

[0052] The first partition 21, the second partition 22, and the support plate 23 are all fitted with through holes for the glass fiber 6 (including the glass fiber bundle 7) to pass through.

[0053] Reference Figure 8 and Figure 9 The drying chamber 203 has a sealing plate 2033 on its side wall. The sealing plate 2033 can move vertically to drive the third roller 2031 to move vertically. The outer side wall of the sealing plate 2033 has a plug-in block 2034 (for example, by integral fixed connection). One end of the plug-in block 2034 is inserted into the strip hole 2032 on the side wall of the working chamber 2 (the strip hole 2032 is set vertically). The strip hole 2032 is set on the side of the drying chamber 203. The other end of the plug-in block 2034 is connected to the vertically set straight line. The actuator 2036 is connected (the housing of the linear actuator 2036 is fixedly connected to the outer wall of the working chamber 2 by bolts, and the push shaft of the linear actuator 2036 is fixedly connected to the bottom surface of the insertion block 2034 by bolts); the insertion block 2034 is provided with a tapered through hole 20341 for accommodating the fiberglass bundle 7. The tapered through hole 20341 penetrates the sealing plate 2033. The fiberglass bundle 7 located between the third roller 2031 and the take-up reel 4 is inserted into the tapered through hole 20341 and can be pulled out. The end of the tapered through hole 20341 with a relatively larger diameter points to the take-up reel 4, and the end with a relatively smaller diameter points to the third roller 2031, which is used to accommodate the fiberglass bundle 7 with a variable tilt angle (when the third roller 2031 moves to a different height from the take-up reel 42, the fiberglass bundle 7 located between the third roller 2031 and the take-up reel 4 will tilt).

[0054] Reference Figure 8 and Figure 9The strip-shaped hole 2032 provides space for the vertical movement of the insertion block 2034; the sealing plate 2033 is adapted to seal the strip-shaped hole 2032, thereby reducing the loss of hot air in the drying chamber 203 through the strip-shaped hole 2032, ensuring the reliability of curing, and achieving energy-saving technical effects. The third roller 2031 is rotatably mounted on the inner side of the sealing plate 2033 (for example, connected by a bearing and bearing seat). The outer wall of the working chamber 2 is equipped with a ball linear guide pair 2035 for guiding the insertion block 2034. The ball linear guide pair 2035 is vertically arranged, and the guide rail 20352 of the ball linear guide pair 2035 is fixedly connected to the outer wall of the working chamber 2 by bolts; the slider 20351 of the ball linear guide pair 2035 is fixedly connected to the side wall of the insertion block 2034 by bolts, and the slider 20351 is fastened to the guide rail 20352 and can slide vertically.

[0055] The linear actuator 2036 is an electric actuator, a pneumatic actuator, a hydraulic actuator, or a combination thereof (e.g., an electro-hydraulic actuator).

[0056] The first valve body 52 is a solenoid valve.

[0057] Reference Figure 6 A level gauge 8 is installed inside the impregnation chamber 201. The top of the level gauge 8 is fixedly connected to the second partition 22 by bolts. The level gauge 8 is used to collect the height information of the first liquid level 31. A camera is installed on the bottom surface of the second partition 22 by bolts. The camera is used to collect image information of the thickness of the impregnation liquid 3 at the top of the asphalt section 71. A temperature sensor is set next to the third roller 2031. The temperature sensor is fixedly connected to the sealing plate 2033 by bolts. It is used to collect the air temperature information at the position of the third roller 2031. A distance sensor is set next to the third roller 2031. The distance sensor is fixedly connected to the sealing plate 2033 by bolts. It is used to collect the distance information between the third roller 2031 and the second partition 22 (i.e., the height information of the curing section 72).

[0058] The invention also includes an electrical cabinet, which is fixedly installed on the outer wall of the working chamber 2 by bolts; the first motor, the second motor, the drive motor, the first air pump 5, the solenoid valve, the linear actuator 2036, the level gauge 8, the camera, and the temperature sensor are respectively connected to the electrical cabinet by wires and signal lines; the electrical cabinet is connected to the external power supply and the external controller (such as a computer or a PLC programmable logic controller) by wires and signal lines, and the external controller controls the start and stop of the first motor, the second motor, the drive motor, the first air pump 5, the solenoid valve, the linear actuator 2036, the level gauge 8, the camera, and the temperature sensor through the electrical cabinet. The peripheral controller is connected to a storage device containing a pre-set database. This database includes information on the thickness of the liquid 3 impregnating the top of the asphalt 71 at different heights corresponding to the first liquid surface 31, curing time (curing time = height of curing section 72 / winding speed of the take-up machine 4), and curing (maximum) temperature. After the user selects a set of information from the database, the peripheral controller's first air pump 5 (intake / exhaust) ensures that the amount (thickness) of the liquid 3 impregnating the top of the asphalt 71 collected by the camera reaches the required range; the level gauge 8 collects the height information of the first liquid surface 31, and the linear actuator 2036 (extension / retraction) controls the temperature information collected by the temperature sensor and the distance information collected by the distance sensor to reach the required range. The take-up machine 4 winds up the fiberglass bundle 7 at a uniform speed, and the winding speed information is stored in the storage device.

[0059] The first motor, the second motor, and the drive motor are all controllable motors (such as servo motors or stepper motors). By inputting electrical signals to the controllable motors through an external controller, the speed, number of revolutions per rotation, angle of rotation per rotation, and start / stop timing of the controllable motors can be controlled.

[0060] A special glass fiber forming process, namely the steps of manufacturing glass fiber 6 using a special glass fiber forming device, includes: S1. Basalt is put into furnace 1 and heated to a molten state, and then drawn into fiberglass 6 through the stencil assembly 13.

[0061] S2. After passing through the drying chamber 203, the glass fiber 6 enters the wetting chamber 201 and is then immersed in the wetting liquid 3; during the process, the glass fiber 6 is wound up to form a glass fiber bundle 7.

[0062] S3. The glass fiber bundle 7 immersed in the wetting liquid 3 moves upward to enter the drying chamber 203. During the process, the wetting liquid 3 on the surface of the glass fiber bundle 7 is drained and cured in sequence. During the process, the first air pump 5 and the linear driver 2036 are adjusted to control the height position of the first liquid surface 31 to match the height position of the third roller 2031.

[0063] S4, the fiberglass bundle 7 passes through the tapered through-hole 20341 and is then wound onto the take-up machine 4.

[0064] In this invention, a draining process is added before the curing process. By adjusting the height of the first liquid surface 31, the draining stroke and draining time can be controlled, thereby controlling the remaining amount of wetting liquid 3 at the top of the drained section 71, thus achieving the purpose of controlling the amount of wetting liquid 3 coated on the glass fiber 6.

[0065] The third roller 2031 can be raised and lowered to change the height position of the top of the curing section 72, that is, to change the curing stroke, curing time and maximum curing temperature of the impregnation liquid 3 on the surface of the glass fiber bundle 7, so as to adapt to the coating amount (thickness) of the impregnation liquid 3, thereby avoiding the problem of insufficient curing / over-curing and improving product quality.

[0066] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0067] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. A special glass fiber forming device, characterized in that: Includes a furnace (1), and the bottom end of the melting and modulation chamber (110) inside the furnace (1) is provided with a discharge port (1102), and a slotted plate assembly (13) is installed at the discharge port (1102). It also includes a working chamber (2); the working chamber (2) is provided with an impregnation chamber (201), a control chamber (202) located next to the impregnation chamber (201), a drying chamber (203) located above the impregnation chamber (201), and a receiving chamber (204) located above the drying chamber (203) and used to accommodate the furnace (1). The wetting liquid (3) located in the lower part of the wetting cavity (201) has a first liquid surface (31); The bottom of the immersion chamber (201) is provided with a first roller (2011) and a second roller (2012), and the drying chamber (203) is provided with a third roller (2031); the glass fiber (6) discharged through the stencil assembly (13) is sequentially pressed with the first roller (2011), the second roller (2012) and the third roller (2031) and then wound onto the take-up machine (4); the first roller (2011) is used to gather several glass fibers (6) to obtain a glass fiber bundle (7), the glass fiber bundle (7) includes a vertically arranged asphalt section (71); the top end of the asphalt section (71) is flush with the top surface of the immersion chamber (201) and the bottom end is flush with the first liquid surface (31); The height of the first liquid level (31) can be adjusted to change the draining stroke, thereby adjusting the draining time and film thickness of the glass fiber (6).

2. The special glass fiber forming device according to claim 1, characterized in that: The wetting liquid (3) located in the lower part of the control chamber (202) is provided with a second liquid surface (32); a gas layer (2021) is provided above the second liquid surface (32); the bottom of the wetting chamber (201) and the bottom of the control chamber (202) are connected; It also includes a first air pump (5); the first air pump (5) is capable of adjusting the thickness of the gas layer (2021) to change the height of the second liquid surface (32) for adjusting the height of the first liquid surface (31).

3. The special glass fiber forming device according to claim 2, characterized in that: The fiberglass bundle (7) includes a curing section (72) disposed in the drying chamber (203), the curing section (72) being disposed above the asphalt section (71); the bottom end of the curing section (72) is flush with the bottom surface of the drying chamber (203), and the top end is pressed against the third roller (2031); The height of the third roller (2031) can be adjusted to change the height of the top of the curing part (72) and the ambient temperature, so as to make the amount of impregnation liquid (3) on the surface of the glass fiber (6), the curing time and the curing efficiency mutually compatible.

4. The special glass fiber forming device according to claim 3, characterized in that: The curing part (72) is arranged vertically; the bottom end of the curing part (72) is connected to the top end of the asphalt section (71); the bottom end of the asphalt section (71) is pressed against the second roller (2012).

5. The special glass fiber forming apparatus according to claim 4, characterized in that: The first roller (2011) is located next to the second roller (2012), and the third roller (2031) is located above the second roller (2012).

6. The special glass fiber forming apparatus according to claim 5, characterized in that: The furnace (1) is located inside the receiving cavity (204) and is located diagonally above the third roller (2031).

7. The special glass fiber forming apparatus according to claim 6, characterized in that: The drying chamber (203) has a sealing plate (2033) on its side wall. The sealing plate (2033) can move vertically to drive the third roller (2031) to move vertically. The outer side wall of the sealing plate (2033) has a plug-in block (2034). One end of the plug-in block (2034) is inserted into a strip hole (2032) on the side wall of the working chamber (2). The strip hole (2032) is located on the side of the drying chamber (203). The other end of the plug-in block (2034) is connected to a vertically arranged linear actuator (2036). The plug block (2034) is provided with a tapered through hole (20341) for accommodating the fiberglass bundle (7). The tapered through hole (20341) has a relatively large diameter end pointing to the take-up machine (4) and a relatively small diameter end pointing to the third roller (2031).

8. The special glass fiber forming apparatus according to claim 7, characterized in that: The furnace (1) includes a furnace body (11) and heating electrodes (12) installed on the side wall of the furnace body (11).

9. The special glass fiber forming apparatus according to claim 8, characterized in that: The heating electrode (12) includes an arc-shaped electrode (121) and a first terminal (122) connected to the arc-shaped electrode (121), the first terminal (122) being connected to an external power supply; the slug assembly (13) includes a slug (131) with a slug hole (1311) and a second terminal (132) connected to the slug (131), the second terminal (132) being connected to an external power supply.

10. A special glass fiber forming process, characterized in that, The steps for manufacturing glass fiber (6) using the special glass fiber forming apparatus according to claim 9 include: S1. Basalt is put into the furnace (1) and heated to a molten state, and then drawn into glass fiber (6) through the perforated plate assembly (13). S2. After passing through the drying chamber (203), the glass fiber (6) enters the impregnation chamber (201) and is then immersed in the impregnation liquid (3); during the process, the glass fiber (6) is wound up to form the glass fiber bundle (7). S3. The glass fiber bundle (7) immersed in the wetting liquid (3) moves upward to enter the drying chamber (203); during the process, the wetting liquid (3) on the surface of the glass fiber bundle (7) is drained and cured in sequence; S4. The fiberglass bundle (7) passes through the tapered through hole (20341) and is then wound around the take-up machine (4).

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