Process and device for producing multi-system glass fiber continuous felt by two-step method

Abstract

The invention relates to the technical field of glass fiber continuous felt production, in particular to a process and a device for producing a multi-system glass fiber continuous felt by a two-step method. The process comprises the following steps that continuous fiber protofilaments are drawn into protofilament barrels after passing through an oiling roller and a beam splitter, then the protofilament barrels are conveyed to a creel to be led into a filament throwing machine, the protofilaments are thrown on a conveying belt moving below under continuous swing of the filament throwing machine, and a protofilament felt covering the whole width of the conveying belt is formed; and uniformly throwing a binder to the precursor fiber felt through the binder throwing part, drying and winding to obtain a finished product. The production device comprises a binder throwing part, the binder throwing part comprises a telescopic assembly and a material scattering box, a material scattering plate is movably arranged at the bottom of the material scattering box, and when the telescopic assembly drives the material scattering box to ascend, the material scattering plate turns over to scatter materials. And the binder is efficiently and uniformly distributed on the continuous felt, so that the prepared continuous felt is low in porosity and uniform in thickness.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber continuous mat production, in particular to a process and device for producing multi-system glass fiber continuous mat by a two-step method. Background Art

[0002] Glass fiber products are an inorganic non-metallic material with excellent performance. They are not only non-flammable, high temperature resistant, electrically insulating, high tensile strength, and good chemical stability, but also can be processed further using organic coating technology to expand the application of products. They have been increasingly widely used in various fields such as transportation and transportation. Glass fiber mat is a thin sheet product made of continuous strands or chopped strands that are non-directionally combined by chemical binders or mechanical action.

[0003] In the existing glass fiber continuous mat production process, the binder is generally distributed through a vibrating screen, which is prone to uneven distribution and affects the quality of the finished continuous mat.

[0004] Therefore, the present application provides a two-step process and device for producing multi-system glass fiber continuous mat, which can spray the binder evenly and efficiently to make it evenly distributed, thereby ensuring the quality of the finished product of the continuous mat. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a two-step process and device for producing multi-system glass fiber continuous mat.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a two-step process for producing multi-system glass fiber continuous felt, comprising the following steps: melting glass raw materials into glass liquid through a kiln and then drawing to obtain continuous fiber precursors, the continuous fiber precursors are drawn into precursor tubes after passing through oiling rollers and beam splitters, and then transported to a yarn frame and introduced into a wire throwing machine. Under the continuous swing of the wire throwing machine, the precursors are thrown onto a conveyor belt moving below to form a precursor felt covering the entire width of the conveyor belt. As the conveyor belt moves, the binder is evenly sprinkled on the precursor felt through the binder sprinkling part, and the product is dried and wound to obtain a finished product.

[0007] As an optimization, the binder includes phenolic resin and acrylic acid in a mass ratio of 9:7, and the binder accounts for 3-7wt% of the finished product.

[0008] The production device includes a binder spreading part, which includes a telescopic component and a spreading box. The spreading box is arranged on the upper side of the raw silk felt, and the telescopic component is located on the outer side of the conveyor belt. A spreading plate is movably arranged at the bottom of the spreading box. When the telescopic component drives the spreading box to rise, the spreading plate flips over to spread the material.

[0009] As an optimization, a feed pipe is connected to the top of the material spreading box, an interlayer mesh plate is provided on the upper part of the material spreading box, a dispersion chamber is formed between the interlayer mesh plate and the feed pipe, and dispersion blades are provided inside the dispersion chamber.

[0010] As an optimization, an auxiliary telescopic rod is provided on the outside of the material spreading box, and the extended end of the auxiliary telescopic rod is connected to a flip motor, and the flip motor is connected to the axis of the material spreading plate. When the telescopic assembly is extended, the auxiliary telescopic rod is extended synchronously, and at the same time the flip motor drives the material spreading plate to flip.

[0011] As an optimization, the width of the spreading plate is not less than the width of the conveyor belt, and a plurality of vibration motors are connected to the side of the spreading plate.

[0012] As an optimization, a material mixing chamber is provided at the upper part of the material spreading box, a plurality of material mixing plates are evenly arranged inside the material mixing chamber, the feed pipe is connected to the top of the material mixing chamber, and the bottom of the material mixing chamber is relatively arranged on the upper side of the dispersion blade; One end of the dispersion fan blade is connected to a dispersion motor.

[0013] As an optimization, the telescopic assembly includes a plurality of telescopic cylinders, which are vertically arranged, and the extended ends of the telescopic cylinders are connected to the outside of the material spreading box.

[0014] As an optimization, the binder enters the dispersion chamber after passing through the feed pipe and the material mixing chamber, and is broken up and blown by the dispersion fan blades, so that the binder passes through the interlayer mesh plate and is evenly dispersed on the surface of the spreading plate. After the spreading plate is turned over, the binder is relatively arranged on the upper side of the continuous felt, and the binder can be evenly dispersed on the continuous felt by the vibration of the spreading plate.

[0015] The two-step process and device for producing multi-system glass fiber continuous mat in this scheme have the following advantages: The production process of the present application is flexible and can be started and stopped at any time. The present application evenly disperses the adhesive through the adhesive sprinkling part, so that the adhesive is evenly dispersed on the spreading plate, and then the spreading plate is turned over and vibrated to make the adhesive efficiently and evenly distributed on the continuous felt, so that the manufactured continuous felt has low porosity and uniform thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axial schematic diagram of the present invention.

[0017] Figure 2 It is a right side schematic diagram of the present invention.

[0018] Figure 3 For the present invention Figure 2 Schematic diagram of the AA section structure.

[0019] Figure 4 It is a main schematic diagram of the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic diagram of the BB cross-section structure.

[0021] Figure 6 It is a schematic diagram of the cutaway axial side of the present invention.

[0022] Figure 7 This is a schematic diagram of the use status of the present invention.

[0023] Among them, 1. material spreading box, 2. telescopic cylinder, 3. conveyor belt, 4. material spreading plate, 5. feeding pipe, 6. partition mesh plate, 7. dispersion chamber, 8. dispersion fan blades, 9. auxiliary telescopic rod, 10. flip motor, 11. material leveling chamber, 12. material leveling plate, 13. dispersion motor, 14. vibration motor. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] A two-step process for producing a multi-system glass fiber continuous mat comprises the following steps: melting glass raw materials into glass liquid through a kiln and then drawing to obtain continuous fiber precursors; the continuous fiber precursors are drawn into precursor tubes after passing through oiling rollers and beam splitters; and then transported to a yarn frame and introduced into a wire throwing machine; under the continuous swing of the wire throwing machine, the precursors are thrown onto a conveyor belt 3 moving below to form a precursor mat covering the entire width of the conveyor belt 3; as the conveyor belt 3 moves, a binder is evenly sprinkled on the precursor mat through a binder sprinkling part; and the finished product is dried and wound.

[0026] The binder comprises phenolic resin and acrylic acid in a mass ratio of 9:7, and the binder accounts for 3-7wt% of the finished product.

[0027] The melting temperature of the kiln is set to 900-1000℃, preheating for 1-2h, preheating to 1200-1500℃ for melting, and the melting time is 5-6h; The wire drawing machine running speed is set to 3-5m / min, and the amount of adhesive is as follows:

[0028] In the present application, the unit area mass of the glass fiber continuous felt obtained in Examples 1-3 and Comparative Examples 1-3 is 100-160g / m2, and the moisture content is ≤0.5%. Examples 1-3 and Comparative Examples 1 and 3 use the continuous felt production device of the present application to spread the adhesive, and Comparative Example 2 uses commonly used adhesive spraying equipment.

[0029] The thickness of the continuous mats obtained in Examples 1-3 and Comparative Examples 1 and 3 are 1.6 mm, 0.7 mm, 1.1 mm, 2.4 mm and 2.6 mm respectively. The continuous mats obtained by using the glass fiber continuous mat production device of the present application have a relatively uniform thickness, low porosity and uniform thickness. The thickness of the continuous mats obtained in Comparative Example 2 is 3.2 mm.

[0030] The continuous felt rolls obtained in Examples 1-3 and Comparative Example 1 have straight edges, are tightly and evenly wound, and have no voids or defects. The continuous felt rolls obtained in Comparative Example 3 have curled edges and small-scale voids and defects visually observed.

[0031] like Figure 1-7 As shown, a glass fiber continuous mat production device includes a binder spreading part, and the binder spreading part includes a telescopic component and a spreading box 1, the spreading box 1 is arranged on the upper side of the raw fiber mat, the telescopic component is located on the outside of the conveyor belt 3, and a spreading plate 4 is movably provided at the bottom of the spreading box 1. When the telescopic component drives the spreading box 1 to rise, the spreading plate 4 flips over to spread the material.

[0032] The material spreading box 1 is of liftable type, and the telescopic assembly can be fixed between the material spreading box 1 and the ground, or between the material spreading box 1 and the top of the factory building. When the material spreading box 1 is in the material spreading state, it is arranged adjacent to the conveyor belt 3; when the material spreading plate 4 is flipped over, the material spreading box 1 is in a lifting state.

[0033] like Figure 3 As shown, a feed pipe 5 is connected to the top of the material spreading box 1, an interlayer mesh plate 6 is provided on the upper part of the material spreading box 1, a dispersion chamber 7 is formed between the interlayer mesh plate 6 and the feed pipe 5, and a dispersion fan blade 8 is provided inside the dispersion chamber 7.

[0034] A plurality of dispersing blades 8 are arranged in a circular array. When the dispersing blades 8 rotate, they can break up the blocky adhesive and evenly disperse the adhesive powder in the dispersing chamber 7 ; the adhesive powder can pass through the dispersing chamber 7 and be evenly distributed on the spreading plate 4 .

[0035] like Figure 3As shown, an auxiliary telescopic rod 9 is provided on the outside of the material spreading box 1, and the extended end of the auxiliary telescopic rod 9 is connected to a flip motor 10. The flip motor 10 is connected to the axis of the material spreading plate 4. When the telescopic assembly is extended, the auxiliary telescopic rod 9 is extended synchronously, and at the same time, the flip motor 10 drives the material spreading plate 4 to flip.

[0036] When the auxiliary telescopic rod 9 is extended, the distance between the material spreading plate 4 and the material spreading box 1 can be increased, so that the material spreading plate 4 can be turned over. When the material spreading box 1 rises to the highest point, the turning motor 10 rotates 90 degrees to drive the material spreading plate 4 to turn over.

[0037] like Figure 5 As shown, the width of the spreading plate 4 is not less than the width of the conveyor belt 3 , and a plurality of vibration motors 14 are connected to the side of the spreading plate 4 .

[0038] A plurality of vibration motors are evenly arranged along the width direction of the spreading plate 4 to transmit power evenly to the spreading plate 4, thereby promoting even distribution of the adhesive.

[0039] like Figure 3 As shown, a material mixing chamber 11 is provided at the upper part of the material spreading box 1, and a plurality of material mixing plates 12 are evenly arranged inside the material mixing chamber 11. The feed pipe 5 is connected to the top of the material mixing chamber 11, and the bottom of the material mixing chamber 11 is relatively arranged on the upper side of the dispersion blade 8. One end of the dispersion blade 8 is connected to a dispersion motor 13 .

[0040] The dispersion motor 13 is used to drive the dispersion blades 8 to rotate. The highest point of the dispersion blades 8 is arranged adjacent to the bottom of the material mixing chamber 11. The adhesive is in uniform contact with the dispersion blades 8 after passing through the material mixing chamber 11.

[0041] The telescopic assembly includes a plurality of telescopic cylinders 2 , which are vertically arranged, and the extended ends of the telescopic cylinders 2 are connected to the outside of the material spreading box 1 .

[0042] like Figure 3 As shown, the binder enters the dispersion chamber 7 after passing through the feed pipe 5 and the material mixing chamber 11, and is broken up and blown by the dispersion blades 8, so that the binder passes through the interlayer mesh plate 6 and is evenly dispersed on the surface of the spreading plate 4. After the spreading plate 4 is turned over, the binder is relatively arranged on the upper side of the continuous felt, and the binder can be evenly dispersed on the continuous felt by vibrating the spreading plate 4.

[0043] The present solution also includes a controller, the position of which is set by the staff according to actual conditions during operation. The controller is used to control the electrical devices used in the present solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, display screens, computer input devices, switch buttons, communication equipment, lights, speakers and microphones; the controller is an Intel processor, an AMD processor, a PLC controller, an ARM processor or a single-chip microcomputer, and the supporting components include a motherboard, a memory stick, a storage medium and a power supply, and the power supply is AC power or a lithium battery; when a display screen is provided, a display card is also provided.

[0044] A glass fiber continuous mat production device, the use method is as follows: When the device is used, the telescopic cylinder 2 is in a shortened state, and the spreading plate 4 is arranged adjacent to the top of the conveyor belt 3; The binder is added into the material spreading box 1 through the feed pipe 5, and the binder is evenly distributed in the upper part of the dispersion chamber 7 through the dispersion chamber 7. The dispersion fan blades 8 are driven to rotate by the dispersion motor 13 to break up and blow the binder so that the binder is evenly distributed in the dispersion chamber 7. The adhesive passes through the interlayer mesh plate 6 and is evenly distributed on the upper surface of the spreading plate 4. The setting of the interlayer mesh plate 6 can effectively prevent the wind generated by the dispersion blades 8 from affecting the adhesive at the bottom of the spreading box 1, so that the adhesive on the spreading plate 4 is evenly distributed in a thin layer. According to the actual spreading amount requirements, the appropriate residence time of the spreading plate 4 is set; When the spreading plate 4 reaches the set dwell time, the telescopic cylinder 2 extends to the highest point, the auxiliary telescopic rod 9 extends, and at the same time the flipping motor 10 drives the spreading plate 4 to rotate, so that the spreading plate 4 flips; After the spreading plate 4 is turned over, the side with the adhesive is set downward, and the auxiliary telescopic rod 9 is shortened until the spreading plate 4 contacts and seals with the bottom surface of the spreading box 1, and then the telescopic cylinder 2 is shortened to restore the spreading box 1 to the spreading state; The vibration motor 14 runs to vibrate the spreading box 1, so that the adhesive is evenly distributed on the continuous felt of the conveyor belt 3, and then the conveyor belt 3 is transported and rotated. When the spreading plate 4 is turned over for the next time, the adhesive is continued to be spread.

[0045] The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific embodiments. Any process and device for producing multi-system glass fiber continuous mat by a two-step method that complies with the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A two-step process for producing a multi-system glass fiber continuous mat, characterized in that: The method comprises the following steps: melting glass raw materials into glass liquid through a kiln and then drawing to obtain continuous fiber precursors; the continuous fiber precursors are drawn into precursor tubes after passing through an oiling roller and a beam splitter; and then transported to a yarn rack and introduced into a wire throwing machine; under the continuous swing of the wire throwing machine, the precursors are thrown onto a conveyor belt (3) moving below to form a precursor felt covering the entire width of the conveyor belt (3); as the conveyor belt (3) moves, a binder is evenly sprinkled onto the precursor felt through a binder sprinkling part; and the product is dried and wound to obtain a finished product.

2. The process for producing a multi-system glass fiber continuous mat in two steps according to claim 1, characterized in that: The binder comprises phenolic resin and acrylic acid in a mass ratio of 9:7, and the binder accounts for 3-7wt% of the finished product.

3. A glass fiber continuous mat production device for producing the glass fiber continuous mat according to any one of claims 1 to 2, characterized in that: The invention comprises an adhesive spreading part, wherein the adhesive spreading part comprises a telescopic component and a spreading box (1), wherein the spreading box (1) is arranged on the upper side of the raw silk felt, the telescopic component is located on the outer side of the conveyor belt (3), and a spreading plate (4) is movably arranged at the bottom of the spreading box (1), and when the telescopic component drives the spreading box (1) to rise, the spreading plate (4) turns over to spread the material.

4. A glass fiber continuous mat production device according to claim 3, characterized in that: The top of the material spreading box (1) is connected to a feeding pipe (5), and an interlayer mesh plate (6) is provided on the upper part of the material spreading box (1). A dispersion chamber (7) is formed between the interlayer mesh plate (6) and the feeding pipe (5), and a dispersion fan blade (8) is provided inside the dispersion chamber (7).

5. The glass fiber continuous mat production device according to claim 3, characterized in that: An auxiliary telescopic rod (9) is arranged outside the material spreading box (1), and the extended end of the auxiliary telescopic rod (9) is connected to a flip motor (10). The flip motor (10) is connected to the axis of the material spreading plate (4). When the telescopic assembly is extended, the auxiliary telescopic rod (9) is extended synchronously, and at the same time, the flip motor (10) drives the material spreading plate (4) to flip.

6. The glass fiber continuous mat production device according to claim 3, characterized in that: The width of the material spreading plate (4) is not less than the width of the conveyor belt (3), and a plurality of vibration motors (14) are connected to the side of the material spreading plate (4).

7. The glass fiber continuous mat production device according to claim 4, characterized in that: The upper part of the material spreading box (1) is provided with a material mixing chamber (11), a plurality of material mixing plates (12) are evenly arranged inside the material mixing chamber (11), the feed pipe (5) is connected to the top of the material mixing chamber (11), and the bottom of the material mixing chamber (11) is arranged relatively to the upper side of the dispersion blade (8); One end of the dispersion fan blade (8) is connected to a dispersion motor (13).

8. The glass fiber continuous mat production device according to claim 3, characterized in that: The telescopic assembly comprises a plurality of telescopic cylinders (2), the telescopic cylinders (2) are arranged vertically, and the extended ends of the telescopic cylinders (2) are connected to the outside of the material spreading box (1).

9. The glass fiber continuous mat production device according to claim 7, characterized in that: The binder enters the dispersion chamber (7) through the feed pipe (5) and the material mixing chamber (11), and is broken up and blown by the dispersion blades (8) so that the binder passes through the interlayer mesh plate (6) and is evenly dispersed on the surface of the spreading plate (4). After the spreading plate (4) is turned over, the binder is relatively arranged on the upper side of the continuous felt, and the binder can be evenly dispersed on the continuous felt by vibrating the spreading plate (4).

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