Method and equipment for producing continuous glass fiber reinforced thermoplastic composite frame

Abstract

The invention provides a method and equipment for producing a continuous glass fiber reinforced thermoplastic composite material frame, and relates to the technical field of photovoltaic module composite materials. The method and the equipment for producing the continuous glass fiber reinforced thermoplastic composite material frame comprise an unwinding mechanism, a pre-processing device, a winding mechanism, a mold, a traction mechanism and a cutting machine. When glass fibers are pre-treated, the desizing effect is improved through cooperation of a desizing solution and an ultrasonic generation device, batting impurities and bubbles are driven to be discharged when overflowing towards the rear cavity through the desizing solution after floating upwards, the batting impurities and the bubbles are blown by compressed air in the discharging process, the bubble and impurity removing effect is effectively improved, and after the desizing solution overflows to the V-shaped groove, the desizing effect is improved. Batting impurities are intercepted in the V-shaped groove and sucked away through the dust collection head, so that the cleanliness of the desizing solution is kept, the clean desizing solution is extracted by the submersible pump from the rear cavity and sprayed out from the spraying holes, glass fibers rising from the desizing solution are cleaned, and the surface cleanliness of the glass fibers is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic module composite materials, and specifically to a method and equipment for producing a continuous glass fiber reinforced thermoplastic composite material frame. Background Art

[0002] With the increasingly deteriorating environmental situation, people's demand for clean energy is growing, and solar energy, as a renewable resource, has received more and more attention. In daily life, solar energy resources have played a certain role. For example, the use of solar water heaters and photovoltaic power generation. The materials used in solar energy devices have to experience long-term sunlight irradiation during use, so they need to have good durability and reliability. With the increasing requirements of the photovoltaic industry for the power generation efficiency of modules and the operation cost of power stations, photovoltaic modules are developing in the directions of larger panels, double-glass double-sided power generation, immunity to potential-induced degradation, and building-integrated photovoltaics, etc., thus putting forward higher requirements for specific strength and insulation of the frame.

[0003] Currently, most of the solar module frames are made of aluminum alloy materials. Aluminum alloy materials are widely used because of their light weight, high strength, firmness, and corrosion resistance. However, recent research has found that a high voltage is formed between the circuit in the photovoltaic module and the grounded metal frame. After the photovoltaic module operates outdoors for a period of time, phenomena such as a decrease in output power, a decrease in the power generation efficiency of the module, and a decrease in the operation efficiency of the power station will occur, that is, the PID effect. Once the PID effect occurs, it will greatly affect the operation and investment returns of the power station. The leakage current channel formed between the aluminum frame and the ground is the main cause of PID formation. Moreover, aluminum is an active metal and has very weak corrosion resistance in salt spray and acidic and alkaline atmospheric environments, and cannot meet the diversity trend of the application environment of photovoltaic modules.

[0004] To solve the above problems, most photovoltaic modules use insulating composite materials as module frames. Compared with aluminum frames and steel frames, composite material frames have the advantages of high strength, low density, high volume resistivity, and good chemical corrosion resistance. Currently, the main manufacturing technology for composite material frames is the pultrusion method, that is, continuous glass fibers are impregnated with a reactive thermosetting resin, and under the action of a traction mechanism, pass through a mold with a heating function. The resin reacts and cures in the mold and is online compounded with the glass fibers, and continuous profiles are obtained through the continuous traction of a pultrusion machine.

[0005] Glass fiber needs to be pre-treated before participating in the composite. First, the sizing agent on the surface of the glass fiber is cleaned off, and second, the surface of the glass fiber is treated and improved to enhance the compatibility and adhesion between the glass fiber and the thermosetting resin substrate. In the prior art, surface desizing is generally achieved only by immersion. In order to improve the treatment effect, it is generally achieved by extending the immersion time. This treatment scheme is likely to increase the amount of foam and cause impurities to accumulate. The bubbles on the surface of the desizing solution condense with the hair and impurities, causing abnormal fiber contamination and affecting subsequent production.

[0006] A disclosed technology proposes a surface treatment method for glass fiber cloth, comprising the following steps: step 1, the glass fiber cloth after desizing and cooling enters the soaking tank for soaking in the coupling agent; step 2, while performing step 1, ultrasonic cleaning is performed in the soaking tank; step 3, the glass fiber cloth is dried once; step 4, the glass fiber cloth after the drying is hydroentangled to open the fiber; step 5, the glass fiber cloth after opening is washed with water; step 6, the glass fiber cloth is dried twice. The disclosed technology states that through the setting of the overflow trough, the collecting trough and the reflux trough, the overflow circulation effect of the coupling agent can be effectively enhanced, the accumulation and condensation of harmful substances in the coupling agent can be reduced, and at the same time, the foam, dust condensate, etc. on the surface of the coupling agent can be effectively removed quickly, the coupling agent can be kept clean, the surface quality of the produced cloth can be effectively improved, and the production of harmful substances in the coupling agent and the foam on the surface of the liquid can be further reduced. The impact on the production of glass fiber cloth.

[0007] The structure for eliminating foam and impurities proposed in the above-mentioned disclosed technology can also be applied to the surface desizing treatment of glass fibers. However, it is found in actual applications that the above-mentioned disclosed technology only eliminates foam and impurities by overflow, and cannot eliminate foam and impurities from the side and bottom. There will still be a lot of foam impurities adhering to the inner wall of the tank body and the surface of the yarn, especially when the yarn is drawn out of the solution after the desizing is completed, it is most likely to stick to impurities. Therefore, the existing technology including the above-mentioned disclosed technology still cannot solve the problem of abnormal fiber contamination caused by the condensation of bubbles on the surface of the desizing solution with hair and impurities in the production of continuous glass fiber reinforced thermoplastic composite material frames. Further improvement is necessary. Summary of the invention

[0008] In view of the shortcomings of the prior art, the present invention provides a method and equipment for producing continuous glass fiber reinforced thermoplastic composite frames, which solves the problem of abnormal fiber contamination caused by bubbles on the surface of the desizing solution, filaments and impurities condensing during the production of continuous glass fiber reinforced thermoplastic composite frames in the prior art.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: An apparatus for producing a continuous glass fiber reinforced thermoplastic composite frame includes an unwinding mechanism, a pre-treatment device, a winding mechanism, a mold, a traction mechanism, and a cutting machine. The mold includes a yarn guiding section, a glue injection section, a heating section, and a composite section. The pre-treatment device includes an ultrasonic desizing tank, a deionized water washing tank, a fiber modification tank, a hot air dryer, a negative pressure pump, a filter tank, an air compressor, and an air storage tank. An desizing solution is provided in the ultrasonic desizing tank. The ultrasonic desizing tank is composed of a wire guiding structure, a partition structure for partitioning the inside of the ultrasonic desizing tank into two front and rear chambers, an ultrasonic generating device, a blowing structure for blowing away foaming agent impurities, a filtering structure for collecting foam and impurities, a rotating structure for driving the filtering structure to rotate, a impurity suction structure for sucking away impurities filtered by the filtering structure, a submersible pump for returning the ultrasonic desizing solution from the rear chamber to the front chamber, and a spraying structure for spraying the desizing solution.

[0010] Preferably, the wire guiding structure includes a first wire guiding wheel, a third wire guiding wheel, a fourth wire guiding wheel, and eight groups of second wire guiding wheels. A cross plate is fixedly connected to the top of the ultrasonic desizing tank and near the left wall. The first wire guiding wheel is rotatably connected to the upper wall of the cross plate through two groups of first support plates. The two groups of first support plates are respectively close to the left and right ends of the cross plate. The eight groups of second wire guiding wheels are arranged in a rectangular array of two rows and four columns and are sequentially rotatably connected to the inner side wall of the ultrasonic desizing tank. The third wire guiding wheel is rotatably connected to the inner side wall of the ultrasonic desizing tank and is located in front of the eight groups of second wire guiding wheels. The horizontal height of the third wire guiding wheel is higher than that of the eight groups of second wire guiding wheels. The fourth wire guiding wheel is rotatably connected to the upper wall of the ultrasonic desizing tank through two groups of second support plates and near the front wall of the ultrasonic desizing tank. The partition structure includes two straight plates and one arc plate. The two straight plates are respectively fixedly connected to the inner left wall and the inner right wall of the ultrasonic desizing tank and are both located below the cross plate. The arc plate is fixedly connected between the opposite ends of the two straight plates. The top view projection of the arc plate is semicircular and the outer arc surface of the semicircle is located on the forward side. An overflow plate is fixedly connected to the inner arc surface of the arc plate and near the upper wall. The horizontal height of the arc plate is lower than that of the two straight plates. The ultrasonic desizing tank is separated into a front chamber and a rear chamber distributed front and rear by the arc plate and the two straight plates. The eight groups of second wire guiding wheels are all located inside the front chamber. The ultrasonic generating device is arranged inside the ultrasonic desizing tank and on the inner lower wall of the front chamber. The submersible pump is fixedly connected to the inside of the ultrasonic desizing tank and on the inner lower wall of the rear chamber. The lower wall of the cross plate is rotatably connected to a filter plate through a rotating structure. The filtering structure is arranged on the filter plate. The top view projection of the filter plate is circular and the center of the circle is collinear with the center of the arc plate. The lower part of the bottom view projection of the filter plate coincides with the overflow plate.

[0011] Preferably, the filtering structure is a V-shaped groove, which is arranged on the upper wall of the filter plate and close to the circumferential outer wall of the filter plate. The top view projection of the V-shaped groove is circular and the cross-section is V-shaped. A plurality of groups of water drainage holes penetrating up and down are arranged on the inner wall of the V-shaped groove.

[0012] Preferably, the rotating structure is a motor, which is fixedly connected to the upper wall of the cross plate. The end of the motor's protruding shaft penetrates the cross plate and extends below the cross plate. The filter plate is fixedly connected to one end of the motor's protruding shaft extending to the lower wall of the cross plate, and the center of the filter plate is collinear with the axis of the motor's protruding shaft.

[0013] Preferably, the impurity suction structure includes a connecting pipe and a dust suction head. The connecting pipe is fixedly connected to the rear wall of the cross plate through a fixing seat. The upper end of the connecting pipe is connected to the filter box through a negative pressure pipe. One end of the filter box away from the negative pressure pipe is connected to a negative pressure pump. The dust suction head is fixedly connected to the lower end of the connecting pipe. A conical head is arranged at one end of the dust suction head away from the connecting pipe, and a dust suction port penetrating inside and outside is arranged on the lower wall of the conical head.

[0014] Preferably, the spraying structure includes a spraying pipe and a plurality of groups of spraying holes. The spraying pipe is fixedly connected to the inner side wall of the ultrasonic desizing tank and is located in front of the third wire guide pulley. The horizontal height of the spraying pipe is higher than that of the third wire guide pulley. A plurality of groups of spraying holes are arranged on the outer wall of the spraying pipe and are all located at the intersection of the upper wall and the rear wall of the spraying pipe. The left wall of the ultrasonic desizing tank is fixedly connected with a second water joint and a first water joint in sequence from front to back. One end of the second water joint away from the ultrasonic desizing tank and one end of the first water joint away from the ultrasonic desizing tank are fixedly connected through a water pipe. One end of the second water joint facing the ultrasonic desizing tank penetrates the side wall of the ultrasonic desizing tank and the side wall of the spraying pipe in sequence and is communicated with the inside of the spraying pipe. One end of the first water joint facing the ultrasonic desizing tank penetrates the side wall of the ultrasonic desizing tank and is fixedly connected to the outlet end of the submersible pump.

[0015] Preferably, the air blowing structure includes a blowing pipe, multiple groups of first air connectors, and multiple groups of second air connectors. The left inner wall and the right inner wall of the ultrasonic desizing tank are respectively slidably connected with a slide bar through a set of sliding sleeves. Both of the two slide bars are located behind the second support plate. The blowing pipe is fixedly connected between the opposite sides of the two slide bars and is close to the lower end of the slide bars. The multiple groups of first air connectors are fixedly connected to the front wall of the ultrasonic desizing tank in a left-right distribution. One end of each of the multiple groups of first air connectors facing the ultrasonic desizing tank penetrates through the front wall of the ultrasonic desizing tank and extends into the ultrasonic desizing tank. The multiple groups of second air connectors are fixedly connected to the front wall of the blowing pipe in a left-right distribution and are all communicated with the inside of the blowing pipe. One end of the second air connector extending into the ultrasonic desizing tank and one end of the first air connector located outside the ultrasonic desizing tank, and between the air storage tank and the air compressor are respectively connected by a set of hoses. The slide bar and the side wall of the ultrasonic desizing tank are locked tightly by quick-lock screws. The rear wall of the blowing pipe is provided with a blowing port.

[0016] A method for producing a continuous glass fiber reinforced thermoplastic composite frame, the method for producing a continuous glass fiber reinforced thermoplastic composite frame uses the above-mentioned equipment for producing a continuous glass fiber reinforced thermoplastic composite frame for production. The production method includes the following steps:

[0017] S1. Yarn pretreatment: Unroll through the unrolling mechanism, place the glass fiber in the pre-treatment device and pass through the ultrasonic desizing tank, deionized water washing tank, and fiber modification tank in sequence for ultrasonic desizing, deionized water washing, and fiber surface modification treatment. After deionized water washing and fiber surface modification treatment, both are dried by a blast dryer, and then transported to yarn laying.

[0018] S2. Yarn laying: Arrange the pretreated glass fiber according to the set arrangement and introduce it into the mold through the yarn guiding section.

[0019] S3. Resin melting and injection: Melt and extrude the thermoplastic resin through an extruder, and inject it into the mold after passing through a flow control valve.

[0020] S4. Composite molding: In the heating section and the composite section of the mold, the molten resin fully infiltrates the reinforcing fiber, and the resin is cured by cooling to form a rigid profile. Then, under the action of the traction mechanism, the rigid profile is continuously pulled out of the mold to realize continuous production of the rigid profile. During composite molding, a pressure of 10 MPa and a high temperature of 250 °C are maintained in the mold.

[0021] S5. Cutting and packing: Cut the continuous glass fiber reinforced thermoplastic composite material on the production line into appropriate lengths to obtain a composite frame, and collect and pack the composite frame.

[0022] Preferably, the specific process of ultrasonic desizing in the yarn pretreatment is as follows: After the glass fiber is unwound from the unwinding mechanism, it successively bypasses the upper wall of the first guide wheel, the outer wall of the second guide wheel, the upper wall of the third guide wheel, the lower wall of the spray pipe, and the upper wall of the fourth guide wheel, and is pulled by the winding mechanism into the deionized washing tank for deionized water washing. Desizing solutions are provided in both the front chamber and the rear chamber of the ultrasonic desizing tank. The desizing solution can be any one of acetone or alcohol solution. The desizing solution in the rear chamber is replenished to the front chamber through a submersible pump and a water pipe. When replenishing, the desizing solution sprays out from multiple spray holes on the spray pipe, and then flushes the glass fiber between the third guide wheel and the fourth guide wheel to avoid flocculation. The glass fiber is soaked and desized by the desizing solution, and ultrasonic desizing is realized in cooperation with the ultrasonic generating device. During the ultrasonic desizing process, the bubbles and fiber fluffs generated in the desizing solution float above the liquid surface. When the liquid level is higher than the upper end of the arc plate, the desizing solution in the front chamber overflows to the rear chamber along the upper wall of the arc plate and the upper wall of the overflow plate. During the overflow process, the air generated by the air compressor is sent into the inside of the air blowing pipe through a hose, and blows towards the surface of the desizing solution through the air blowing ports on the rear wall of the air blowing pipe, driving the foam and fiber fluffs floating on the surface of the desizing solution to flow to the rear chamber along with the overflowing desizing solution. When the desizing solution overflows to the rear chamber, it is received through the V-shaped groove on the filter plate. The desizing solution drains out along the drain holes in the V-shaped groove, and the fiber fluffs are intercepted inside the V-shaped groove. After overflowing for a certain time, the motor starts to rotate, driving the filter plate to rotate. At the same time, the negative pressure pump starts, and a negative pressure adsorption state is formed at the suction port of the suction head through the negative pressure pipe and the connecting pipe, sucking away the fiber fluffs driven under the suction head when the filter plate rotates, so as to maintain the cleanliness of the desizing solution in the front chamber and improve the desizing effect.

[0023] The present invention provides a method and equipment for producing a continuous glass fiber reinforced thermoplastic composite frame. It has the following beneficial effects:

[0024] 1. Compared with the prior art, in the method and equipment for producing a continuous glass fiber reinforced thermoplastic composite frame, when the glass fiber is pre-treated, it is desized by a desizing solution, and the ultrasonic generating device is used to cooperate to improve the desizing effect. The floc impurities and bubbles generated during the desizing process float up and are driven out when the desizing solution overflows to the rear chamber. During the discharge process, they are blown by the compressed air blown out from the air blowing ports, effectively improving the discharge effect of bubbles and impurities and avoiding affecting the surface quality of the glass fiber.

[0025] 2. Compared with the prior art, in the method and equipment for producing a continuous glass fiber reinforced thermoplastic composite frame, an overflow plate is arranged on the inner side wall of the arc plate, and a filter plate with a V-shaped groove is arranged below the overflow plate. After the desizing solution with bubbles and floc impurities overflows into the V-shaped groove, the desizing solution drains out to the rear chamber through the drain holes, and the floc impurities are intercepted in the V-shaped groove and are sucked away by the suction head, so as to maintain the cleanliness of the desizing solution and improve the desizing effect.

[0026] 3. Compared with the prior art, in the method and equipment for continuously producing the frame of glass fiber reinforced thermoplastic composite materials, a spray pipe is arranged between the third wire guide wheel and the fourth wire guide wheel. The submersible pump extracts clean desizing solution from the rear cavity and sprays it out from the spray holes to clean the glass fibers rising from the desizing solution, effectively improving the surface cleanliness of the glass fibers and reducing the cleaning pressure of subsequent deionized water cleaning. At the same time, this structure can also be used in the subsequent deionized washing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of the present invention;

[0028] Figure 2 for the present invention Figure 1 is a partial enlarged view at A in the figure;

[0029] Figure 3 for the present invention Figure 1 is a partial enlarged view at B in the figure;

[0030] Figure 4 is a partial side sectional view of the internal structure of the rear cavity of the ultrasonic desizing tank of the present invention;

[0031] Figure 5 for the present invention Figure 4 is a partial enlarged view at C in the figure;

[0032] Figure 6 is a partial side sectional view of the internal structure of the front cavity of the ultrasonic desizing tank of the present invention;

[0033] Figure 7 for the present invention Figure 6 is a partial enlarged view at D in the figure;

[0034] Figure 8 for the present invention Figure 6 is a partial enlarged view at E in the figure;

[0035] Figure 9 is a partial schematic view of the connection structure of the dust suction head and the cone head of the present invention;

[0036] Figure 10 is a process flow chart of the method for preparing the composite material frame of the present invention;

[0037] Figure 11 is the method for assembling the composite material frame of the present invention: (a) anchor point method; (b) snap method; (c) yield friction method.

[0038] Among them, 1. Ultrasonic degumming tank; 2. Horizontal plate; 3. First support plate; 4. First wire guide wheel; 5. Straight plate; 6. Arc plate; 7. Second wire guide wheel; 8. Third wire guide wheel; 9. Spray pipe; 901. Spray holes; 10. Second support plate; 11. Fourth wire guide wheel; 12. First air joint; 13. First water joint; 14. Water pipe; 15. Second water joint; 16. Negative pressure pipe; 17. Fixed seat; 18. Connecting pipe; 19. Motor; 20. Filter plate; 21. V-shaped groove; 22. Overflow plate; 23. Sliding sleeve; 24. Slide bar; 25. Dust suction head; 2501. Taper head; 2502. Dust suction port; 26. Submersible pump; 27. Air blowing pipe; 2701. Air blowing port; 28. Hose; 29. Quick-lock screw; 30. Second air joint. Detailed implementation mode

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment:

[0041] As Figures 1 to 9 shown, the embodiment of the present invention provides a device for producing a continuous glass fiber reinforced thermoplastic composite frame, including an unwinding mechanism, a pre-treatment device, a winding mechanism, a mold, a traction mechanism, and a cutting machine. The mold includes a wire guiding section, a glue injection section, a heating section, and a composite section. The pre-treatment device includes an ultrasonic degumming tank 1, a deionized washing tank, a fiber modification tank, a blast dryer, a negative pressure pump, a filter box, an air compressor, and an air storage tank. The ultrasonic degumming tank 1 is provided with a degumming solution. The ultrasonic degumming tank 1 is composed of a wire guiding structure, a partition structure for separating the inside of the ultrasonic degumming tank 1 into two front and rear chambers, an ultrasonic generating device, a blowing structure for blowing away foaming agent impurities, a filtering structure for collecting foam and impurities, a rotating structure for driving the filtering structure to rotate, a impurity suction structure for sucking away the impurities filtered by the filtering structure, a submersible pump 26 for returning the ultrasonic degumming solution from the rear chamber to the front chamber, and a spraying structure for spraying the degumming solution.

[0042] In order to guide the glass fiber to pass through the inside of the ultrasonic desizing tank 1, the wire guiding structure includes a first wire guiding wheel 4, a third wire guiding wheel 8, a fourth wire guiding wheel 11 and eight groups of second wire guiding wheels 7. A cross plate 2 is fixedly connected to the top of the ultrasonic desizing tank 1 and near the left wall. The first wire guiding wheel 4 is rotatably connected to the upper wall of the cross plate 2 through two groups of first support plates 3. The two groups of first support plates 3 are respectively close to the left and right ends of the cross plate 2. The eight groups of second wire guiding wheels 7 are arranged in a rectangular array of two rows and four columns and are sequentially rotatably connected to the inner side wall of the ultrasonic desizing tank 1. The third wire guiding wheel 8 is rotatably connected to the inner side wall of the ultrasonic desizing tank 1 and is located in front of the eight groups of second wire guiding wheels 7. The horizontal height of the third wire guiding wheel 8 is higher than that of the eight groups of second wire guiding wheels 7. The fourth wire guiding wheel 11 is rotatably connected to the upper wall of the ultrasonic desizing tank 1 through two groups of second support plates 10 and is near the front wall of the ultrasonic desizing tank 1. The glass fiber enters the inside of the ultrasonic desizing tank 1 from the upper wall of the first wire guiding wheel 4. After being guided by the eight groups of second wire guiding wheels 7, the residence time of the glass fiber in the ultrasonic desizing tank 1 is effectively extended to improve the soaking desizing effect. After desizing, it is led out by the third wire guiding wheel 8 and the fourth wire guiding wheel 11 to the subsequent process.

[0043] In order to form a front cavity and a rear cavity in the ultrasonic desizing tank 1, the partition structure includes two straight plates 5 and an arc plate 6. The two straight plates 5 are respectively fixedly connected to the inner left wall and the inner right wall of the ultrasonic desizing tank 1 and are both located below the cross plate 2. The arc plate 6 is fixedly connected between the opposite ends of the two straight plates 5. The top view projection of the arc plate 6 is semicircular and the outer arc surface of the semicircle is located on the forward side. An overflow plate 22 is fixedly connected to the inner arc surface of the arc plate 6 and near the upper wall. The horizontal height of the arc plate 6 is lower than that of the two straight plates 5. The ultrasonic desizing tank 1 is divided into a front cavity and a rear cavity distributed front and rear by the arc plate 6 and the two straight plates 5. All eight groups of second wire guiding wheels 7 are located inside the front cavity. The ultrasonic generating device is arranged inside the ultrasonic desizing tank 1 and on the inner lower wall of the front cavity. The submersible pump 26 is fixedly connected to the inside of the ultrasonic desizing tank 1 and on the inner lower wall of the rear cavity. The partition structure divides the ultrasonic desizing tank 1 into a front cavity and a rear cavity. The desizing solution in the rear cavity continuously replenishes the front cavity through the submersible pump 26. After the liquid level of the desizing solution in the front cavity is higher than the upper end of the arc plate 6, it overflows backward into the rear cavity along the upper end of the arc plate 6 and the upper wall of the overflow plate 22 to achieve circulation.

[0044] In order to realize the rotation of the filter plate 20, a filter plate 20 is rotatably connected to the lower wall of the cross plate 2 through a rotating structure. The rotating structure is a motor 19. The motor 19 is fixedly connected to the upper wall of the cross plate 2. The end of the protruding shaft of the motor 19 penetrates through the cross plate 2 and extends below the cross plate 2. The filter plate 20 is fixedly connected to one end of the protruding shaft of the motor 19 extending below the cross plate 2. The center of the filter plate 20 is collinear with the axis of the protruding shaft of the motor 19. After the motor 19 is started, it can drive the filter plate 20 to rotate, so as to realize the switching between the position of the filter plate 20 below the overflow plate 22 and the position below the dust suction head 25, so that the dust suction head 25 can adsorb the impurities intercepted in the V-shaped groove 21.

[0045] In order to intercept and filter the fluff impurities brought by the pulp-removing solution during overflow, the filtering structure is arranged on the filter plate 20. The top view projection of the filter plate 20 is circular and the center of the circle is collinear with the center of the arc plate 6. The lower part of the bottom view projection of the filter plate 20 coincides with the overflow plate 22. The filtering structure is a V-shaped groove 21, which is arranged on the upper wall of the filter plate 20 and close to the outer wall of the circumference of the filter plate 20. The top view projection of the V-shaped groove 21 is circular and the cross section is V-shaped. A plurality of groups of water-draining holes penetrating up and down are arranged on the inner wall of the V-shaped groove 21. When the pulp-removing solution overflows from the front cavity to the rear cavity, driven by the liquid surface flow and the air flow blown out by the air-blowing structure, the bubbles and impurities on the liquid surface are all sent to the rear cavity and enter the inside of the V-shaped groove 21 along the overflow plate 22. The pulp-removing solution is discharged through the water-draining holes, and the impurities are intercepted inside the V-shaped groove 21, maintaining the cleanliness of the pulp-removing solution in the rear cavity.

[0046] In order to process the impurities intercepted in the V-shaped groove 21, the impurity suction structure includes a connecting pipe 18 and a dust suction head 25. The connecting pipe 18 is fixedly connected to the rear wall of the cross plate 2 through a fixing seat 17. The upper end of the connecting pipe 18 is connected to the filter box through a negative pressure pipe 16. One end of the filter box away from the negative pressure pipe 16 is connected to a negative pressure pump. The dust suction head 25 is fixedly connected to the lower end of the connecting pipe 18. A conical head 2501 is arranged at one end of the dust suction head 25 away from the connecting pipe 18. A dust suction port 2502 penetrating inside and outside is arranged on the lower wall of the conical head 2501. When the impurities accumulated in the V-shaped groove 21 are rotated to the lower part of the dust suction head 25, the negative pressure formed inside the dust suction head 25 by the negative pressure pump sucks the impurities away through the dust suction port 2502, preventing the filtering ability of the V-shaped groove 21 from being affected after excessive accumulation.

[0047] In order to clean the glass fibers rising from the deflashing solution after deflashing is completed, the spraying structure includes a spray pipe 9 and multiple groups of spray holes 901. The spray pipe 9 is fixedly connected to the inner side wall of the ultrasonic deflashing tank 1 and is located on the front side of the third wire guide wheel 8. The horizontal height of the spray pipe 9 is higher than that of the third wire guide wheel 8. Multiple groups of spray holes 901 are all arranged on the outer wall of the spray pipe 9 and are all located at the junction of the upper wall and the rear wall of the spray pipe 9. The left wall of the ultrasonic deflashing tank 1 is fixedly connected with a second water joint 15 and a first water joint 13 in sequence from front to back. One end of the second water joint 15 far away from the ultrasonic deflashing tank 1 and one end of the first water joint 13 far away from the ultrasonic deflashing tank 1 are fixedly connected through a water pipe 14. One end of the second water joint 15 facing the ultrasonic deflashing tank 1 sequentially penetrates the side wall of the ultrasonic deflashing tank 1, the side wall of the spray pipe 9 and is communicated with the inside of the spray pipe 9. One end of the first water joint 13 facing the ultrasonic deflashing tank 1 penetrates the side wall of the ultrasonic deflashing tank 1 and is fixedly connected with the outlet end of the submersible pump 26. The clean deflashing solution pumped by the submersible pump 26 from the rear cavity is sprayed out through multiple groups of spray holes 901 of the spray pipe 9 and sprinkled on the surface of the glass fibers just rising from the deflashing solution to clean the surface of the glass fibers, reduce the accumulation of impurities inside the solution on the surface of the glass fibers, and reduce the cleaning pressure of subsequent deionized water washing. At the same time, this cleaning structure can also be used in the subsequent deionized water washing tank. In the deionized water washing tank, the filtered clean deionized water is pumped to wash the surface of the glass fibers to avoid dirt hanging.

[0048] In order to improve the discharge effect of bubbles and impurities on the deflashing solution surface inside the front cavity, the air blowing structure includes a blow pipe 27, multiple groups of first air joints 12 and multiple groups of second air joints 30. The inner left wall and the inner right wall of the ultrasonic deflashing tank 1 are respectively slidably connected with a group of slide bars 24 through a group of sliding sleeves 23. Both groups of slide bars 24 are located behind the second support plate 10. The blow pipe 27 is fixedly connected between the opposite sides of the two groups of slide bars 24 and is close to the lower end position of the slide bars 24. Multiple groups of first air joints 12 are fixedly connected to the front wall of the ultrasonic deflashing tank 1 in a left-right distribution. One end of each group of first air joints 12 facing the ultrasonic deflashing tank 1 penetrates the front wall of the ultrasonic deflashing tank 1 and extends into the inside of the ultrasonic deflashing tank 1. Multiple groups of second air joints 30 are fixedly connected to the front wall of the blow pipe 27 in a left-right distribution and are all communicated with the inside of the blow pipe 27. A group of hoses 28 are respectively connected between the second air joints 30 and the ends of the first air joints 12 extending into the inside of the ultrasonic deflashing tank 1, between the ends of the first air joints 12 located outside the ultrasonic deflashing tank 1 and the air storage tank, and between the air storage tank and the air compressor. The slide bars 24 and the side walls of the ultrasonic deflashing tank 1 are locked tightly through quick-lock screws 29. An air blowing port 2701 is arranged on the rear wall of the blow pipe 27. Compressed air is blown out through the air blowing port 2701 to form an air flow, which, combined with the overflow flow of the liquid surface, drives the bubbles and impurities to be discharged quickly. After loosening the quick-lock screws 29, the slide bars 24 can slide up and down on the inner side wall of the sliding sleeves 23, so that the height difference between the air blowing port 2701 and the liquid surface can be adjusted, and the optimal air blowing height can be obtained through relatively simple tests.

[0049] As Figure 10 shown, a method for producing a continuous glass fiber reinforced thermoplastic composite frame uses the above-mentioned equipment for producing a continuous glass fiber reinforced thermoplastic composite frame, and the production method includes the following steps:

[0050] S1. Yarn pretreatment: Unwind through the unwinding mechanism, place the glass fiber in the pre-treatment device and pass through the ultrasonic desizing tank 1, deionized water washing tank, and fiber modification tank in sequence for ultrasonic desizing, deionized water washing, and fiber surface modification treatment. After deionized water washing and fiber surface modification treatment, both are dried by a blast dryer, and then conveyed to yarn laying;

[0051] S2. Yarn laying: Arrange the pretreated glass fiber according to the set arrangement and introduce it into the mold through the yarn guiding section;

[0052] S3. Resin melting and injection: Melt and extrude the thermoplastic resin through an extruder, and inject it into the mold after passing through the flow control valve;

[0053] S4. Composite molding: In the heating section and composite section of the mold, the molten resin fully infiltrates the reinforcing fiber, and the resin is cured by cooling to form a rigid profile. Then, under the action of the traction mechanism, the rigid profile is continuously pulled out of the mold to realize continuous production of the rigid profile. During composite molding, a pressure of 10 MPa and a high temperature of 250 °C are maintained in the mold;

[0054] S5. Cutting and packing: Cut the continuous glass fiber reinforced thermoplastic composite material on the production line into appropriate lengths to obtain the composite frame, and collect and pack the composite frame.

[0055] Preferably, according to general usage requirements, assemble the collected and packed composite frames. Every 4 composite frames can be spliced into a rectangular module. Specifically, the connection between the 4 sides is completed through corner brackets. Further, as Figure 11 shown, the present invention provides 3 connection methods for frame assembly: (a) Anchor point method; (b) Snap method; (c) Yield friction method.

[0056] Anchor point method: The anchor point is processed by a needle punching mechanism with a heating function. The needle head can pierce or not pierce the frame. The resin in contact with the needle head quickly melts under the action of high temperature and quickly cools after the needle punching mechanism leaves, obtaining an anchor point protruding towards the inner side of the cavity; there is a barb structure on the corner bracket, and the corner bracket slides over the anchor point under the action of thrust, and the anchor point prevents the connecting corner bracket from disengaging from the frame cavity.

[0057] Snap method: A snap and elastic sheet structure is provided on the corner fitting. The frame is provided with snap positioning holes at the corresponding positions of the snap. During installation, the snap on the corner fitting snaps into the mating hole on the frame to achieve the connection between the corner fitting and the frame.

[0058] Yield friction method: The size of the corner fitting material in one direction is larger than the size of the frame cavity. During the process of inserting the corner fitting into the frame, the material at the interference fit part of the corner fitting undergoes yield and plastic deformation. When the corner fitting and the frame undergo a pull-off movement, the frictional force between the corner fitting and the frame prevents the two from separating.

[0059] During the actual production and use process, according to different usage requirements and convenience, the above assembly methods can be selected as needed. The connection of the composite material frame of the present invention is diversified, which is not only convenient for assembly and use, but also convenient for disassembly, and is conducive to the recyclability of the composite material.

[0060] Furthermore, the specific process of ultrasonic desizing in the yarn pretreatment is as follows: After the glass fiber is unreeled from the unreeling mechanism, it sequentially bypasses the upper wall of the first wire guide wheel 4, the outer wall of the second wire guide wheel 7, the upper wall of the third wire guide wheel 8, the lower wall of the spray pipe 9, and the upper wall of the fourth wire guide wheel 11, and is pulled by the winding mechanism into the deionized washing tank for deionized water washing. Desizing solutions are provided in both the front chamber and the rear chamber of the ultrasonic desizing tank 1. The desizing solution can be any one of acetone or alcohol solution. The desizing solution in the rear chamber is replenished to the front chamber through the submersible pump 26 and the water pipe 14. When replenishing, the desizing solution is ejected from multiple spray holes 901 on the spray pipe 9, and then the glass fiber between the third wire guide wheel 8 and the fourth wire guide wheel 11 is rinsed to avoid flocculation. The glass fiber is soaked and desized by the desizing solution, and ultrasonic desizing is achieved in cooperation with the ultrasonic generating device. During the ultrasonic desizing process, the bubbles and fiber fluffs generated in the desizing solution float above the liquid surface. When the liquid level height is higher than the upper end of the arc plate 6, the desizing solution in the front chamber overflows along the upper wall of the arc plate 6 and the upper wall of the overflow plate 22 to the rear chamber. During the overflow process, the air generated by the air compressor is sent into the inside of the blow pipe 27 through the hose 28, and is blown towards the surface of the desizing solution through the air blowing port 2701 on the rear wall of the blow pipe 27, driving the foam and fiber fluffs floating on the surface of the desizing solution to flow towards the rear chamber along with the overflowing desizing solution. When the desizing solution overflows to the rear chamber, it is received through the V-shaped groove 21 on the filter plate 20. The desizing solution drains out along the drain holes in the V-shaped groove 21, and the fiber fluffs are intercepted inside the V-shaped groove 21. After overflowing for a certain period of time, the motor 19 starts to rotate, driving the filter plate 20 to rotate. At the same time, the negative pressure pump starts, and a negative pressure adsorption state is formed at the suction port 2502 of the suction head 25 through the negative pressure pipe 16 and the connecting pipe 18, sucking away the fiber fluffs driven under the suction head 25 when the filter plate 20 rotates, thereby maintaining the cleanliness of the desizing solution in the front chamber and improving the desizing effect.

[0061] Working principle: The glass fiber enters the interior of the ultrasonic desizing tank 1 from the upper wall of the first wire guide wheel 4. Guided by eight groups of second wire guide wheels 7, the residence time of the glass fiber in the ultrasonic desizing tank 1 is effectively extended to improve the desizing effect by soaking. After desizing, it is led out to the subsequent process through the third wire guide wheel 8 and the fourth wire guide wheel 11. The partition structure divides the ultrasonic desizing tank 1 into a front chamber and a rear chamber. The desizing solution in the rear chamber continuously replenishes the front chamber through the submersible pump 26. When the liquid level of the desizing solution in the front chamber is higher than the upper end of the arc plate 6, it overflows along the upper end of the arc plate 6 and the upper wall of the overflow plate 22 to the rear chamber to achieve circulation. After the motor 19 is started, it can drive the filter plate 20 to rotate, so as to switch the position of the filter plate 20 below the overflow plate 22 and below the dust suction head 25, so that the dust suction head 25 can adsorb the impurities intercepted in the V-shaped groove 21. When the desizing solution overflows from the front chamber to the rear chamber, driven by the liquid surface flow and the air flow blown out by the air blowing structure, the bubbles and impurities on the liquid surface are sent to the rear chamber and enter the interior of the V-shaped groove 21 along the overflow plate 22. The desizing solution is discharged through the water drainage holes, and the impurities are intercepted inside the V-shaped groove 21, maintaining the cleanliness of the desizing solution in the rear chamber. When the impurities accumulated in the V-shaped groove 21 are rotated below the dust suction head 25, the negative pressure formed inside the dust suction head 25 by the negative pressure pump sucks the impurities away through the dust suction port 2502, preventing excessive accumulation from affecting the filtering ability of the V-shaped groove 21. The clean desizing solution pumped from the rear chamber by the submersible pump 26 is sprayed out through multiple spray holes 901 of the spray pipe 9 and sprinkled on the surface of the glass fiber just rising from the desizing solution to clean the surface of the glass fiber, reducing the accumulation of impurities inside the solution on the surface of the glass fiber and reducing the cleaning pressure of subsequent deionized washing. Compressed air is blown out through the air blowing port 2701 to form an air flow, which, combined with the overflow flow of the liquid surface, drives the bubbles and impurities to be quickly discharged. After loosening the quick-lock screw 29, the slide bar 24 can slide up and down on the inner side wall of the sliding sleeve 23, so that the height difference between the air blowing port 2701 and the liquid surface can be adjusted, and the optimal blowing height can be obtained through relatively simple tests.

[0062] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for producing a continuous glass fiber reinforced thermoplastic composite frame, characterized in that: The invention comprises an unwinding mechanism, a pre-treatment device, a rewinding mechanism, a mold, a traction mechanism, and a cutting machine. The mold comprises a yarn guide section, a glue injection section, a heating section, and a compound section. The pre-treatment device comprises an ultrasonic desizing tank (1), a deionizing washing tank, a fiber modification tank, an air blower dryer, a negative pressure pump, a filter box, an air compressor, and an air storage tank. A desizing solution is arranged in the ultrasonic desizing tank (1). The ultrasonic desizing tank (1) comprises a wire guide structure, a partition structure for dividing the interior of the ultrasonic desizing tank (1) into two front and rear chambers, an ultrasonic generating device, an air blowing structure for blowing away foaming agent impurities, a filtering structure for collecting foam and impurities, a rotating structure for driving the filtering structure to rotate, a suction structure for sucking away impurities filtered out by the filtering structure, a submersible pump (26) for returning the ultrasonic desizing solution from the rear chamber to the front chamber, and a spraying structure for spraying the desizing solution.

2. The device for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 1, characterized in that: The wire guide structure comprises a first wire guide wheel (4), a third wire guide wheel (8), a fourth wire guide wheel (11) and eight groups of second wire guide wheels (7); the top of the ultrasonic desizing tank (1) is fixed and fixedly connected to a transverse plate (2) near the left wall; the first wire guide wheel (4) is rotatably connected to the upper wall of the transverse plate (2) through two groups of first support plates (3); the two groups of first support plates (3) are respectively close to the left and right ends of the transverse plate (2); the eight groups of second wire guide wheels (7) are distributed in a rectangular array of two rows and four columns and are rotatably connected to the ultrasonic desizing tank (1) in sequence. The inner wall of the ultrasonic desizing groove (1), the third wire guide wheel (8) is rotatably connected to the inner wall of the ultrasonic desizing groove (1) and is located in front of the eight groups of second wire guide wheels (7), the third wire guide wheel (8) is higher in level than the eight groups of second wire guide wheels (7), the fourth wire guide wheel (11) is rotatably connected to the upper wall of the ultrasonic desizing groove (1) through two groups of second support plates (10) and is close to the front wall of the ultrasonic desizing groove (1), the partition structure includes two groups of straight plates (5) and one group of arc plates (6), the two groups of straight plates (5) are respectively fixedly connected to the left and right sides of the inner side of the ultrasonic desizing groove (1) The arc plate (6) is fixedly connected between the opposite ends of the two groups of straight plates (5) in a top view, and the outer arc surface of the arc plate (6) is located on the front side, and an overflow plate (22) is fixedly connected to the inner arc surface of the arc plate (6) and close to the upper wall, and the horizontal height of the arc plate (6) is lower than that of the two groups of straight plates (5). The ultrasonic desizing tank (1) is divided into a front cavity and a rear cavity distributed front and back by the arc plate (6) and the two groups of straight plates (5). The eight groups of the second guide wire wheels (7) are ) are both located inside the front cavity, the ultrasonic generating device is arranged inside the ultrasonic deslurry removal tank (1) and is located on the inner lower wall of the front cavity, the submersible pump (26) is fixedly connected inside the ultrasonic deslurry removal tank (1) and is located on the inner lower wall of the rear cavity, the lower wall of the transverse plate (2) is rotatably connected to a filter plate (20) via a rotating structure, the filter structure is arranged on the filter plate (20), the filter plate (20) is circular in top view projection and the center of the circle is colinear with the center of the arc plate (6), and the lower part of the filter plate (20) in top view projection overlaps with the overflow plate (22).

3. The device for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 2, characterized in that: The filtering structure is a V-shaped groove (21), the V-shaped groove (21) being arranged on the upper wall of the filter plate (20) and close to the circumferential outer wall of the filter plate (20), the V-shaped groove (21) being circular in top view projection and V-shaped in cross section, and the inner wall of the V-shaped groove (21) being provided with a plurality of groups of drainage holes penetrating from top to bottom.

4. The device for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 3, characterized in that: The rotating structure is a motor (19), the motor (19) is fixedly connected to the upper wall of the horizontal plate (2), the end of the motor (19) extending shaft passes through the horizontal plate (2) and extends to the bottom of the horizontal plate (2), the filter plate (20) is fixedly connected to the end of the motor (19) extending shaft extending to the bottom wall of the horizontal plate (2), and the center of the filter plate (20) is colinear with the center of the motor (19) extending shaft.

5. The device for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 4, characterized in that: The impurity suction structure comprises a connecting pipe (18) and a dust suction head (25); the connecting pipe (18) is fixedly connected to the rear wall of the horizontal plate (2) via a fixing seat (17); the upper end of the connecting pipe (18) is connected to a filter box via a negative pressure pipe (16); the end of the filter box away from the negative pressure pipe (16) is connected to a negative pressure pump; the dust suction head (25) is fixedly connected to the lower end of the connecting pipe (18); the end of the dust suction head (25) away from the connecting pipe (18) is provided with a cone head (2501); the lower wall of the cone head (2501) is provided with a dust suction port (2502) that is through-connected from inside to outside.

6. The device for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 5, characterized in that: The spray structure comprises a spray pipe (9) and a plurality of groups of spray holes (901); the spray pipe (9) is fixedly connected to the inner wall of the ultrasonic desizing tank (1) and is located in front of the third wire guide wheel (8); the spray pipe (9) is at a higher level than the third wire guide wheel (8); the plurality of groups of spray holes (901) are all arranged on the outer wall of the spray pipe (9) and are all located at the junction of the upper wall and the rear wall of the spray pipe (9); the left wall of the ultrasonic desizing tank (1) is fixedly connected with a second water joint (15) and a first water joint (13) in a front-to-back distribution in sequence; An end of the second water joint (15) away from the ultrasonic desizing tank (1) and an end of the first water joint (13) away from the ultrasonic desizing tank (1) are fixedly connected via a water pipe (14); an end of the second water joint (15) facing the ultrasonic desizing tank (1) sequentially penetrates the side wall of the ultrasonic desizing tank (1), the side wall of the spray pipe (9), and is connected to the interior of the spray pipe (9); an end of the first water joint (13) facing the ultrasonic desizing tank (1) penetrates the side wall of the ultrasonic desizing tank (1) and is fixedly connected to the outlet end of the submersible pump (26).

7. A method and apparatus for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 6, characterized in that: The air blowing structure comprises an air blowing pipe (27), a plurality of first air joints (12) and a plurality of second air joints (30). The inner left wall and the inner right wall of the ultrasonic desizing tank (1) are respectively slidably connected to a group of slide bars (24) via a group of sliding sleeves (23). The two groups of slide bars (24) are both located behind the second support plate (10). The air blowing pipe (27) is fixedly connected between the opposite sides of the two groups of slide bars (24) and close to the lower end of the slide bars (24). The plurality of first air joints (12) are distributed on the left and right sides and are fixedly connected to the front wall of the ultrasonic desizing tank (1) in sequence. The ends of the plurality of first air joints (12) facing the ultrasonic desizing tank (1) all penetrate the ultrasonic desizing tank. (1) front wall and all extend into the interior of the ultrasonic desizing tank (1); a plurality of groups of the second air joints (30) are distributed on the left and right and are fixedly connected to the front wall of the air blowing pipe (27) in sequence and all penetrate into the interior of the air blowing pipe (27); the second air joint (30) and one end of the first air joint (12) extending into the interior of the ultrasonic desizing tank (1); one end of the first air joint (12) located outside the ultrasonic desizing tank (1) and the air storage tank; and the air storage tank and the air compressor are connected respectively by a group of hoses (28); the sliding strip (24) and the side wall of the ultrasonic desizing tank (1) are locked by a quick-locking screw (29); and the rear wall of the air blowing pipe (27) is provided with an air blowing port (2701).

8. A method for producing a continuous glass fiber reinforced thermoplastic composite frame, wherein the method for producing a continuous glass fiber reinforced thermoplastic composite frame is produced using the equipment for producing a continuous glass fiber reinforced thermoplastic composite frame according to any one of claims 1 to 7, characterized in that: The production method comprises the following steps: S1, yarn pre-treatment, unwinding through an unwinding mechanism, placing the glass fiber in a pre-treatment device, and sequentially passing through an ultrasonic desizing tank (1), a deionized washing tank, and a fiber modification tank for ultrasonic desizing, deionized water washing, and fiber surface modification treatment, wherein after the deionized water washing and the fiber surface modification treatment, the fiber is dried by an air blower dryer, and then transported to the yarn laying; S2, yarn laying, the pre-treated glass fibers are introduced into the mold through the yarn guide section according to the set arrangement; S3, resin melting and injection, the thermoplastic resin is melted and extruded through an extruder, and then injected into the mold after passing through a flow control valve; S4, composite molding, in the heating section and composite section of the mold, the molten resin fully infiltrates the reinforcing fiber, and the resin is solidified by cooling to form a rigid profile, and then the rigid profile is continuously pulled out of the mold by the action of the traction mechanism to achieve continuous production of rigid profiles. During composite molding, the mold maintains a pressure of 10MPa and a high temperature of 250℃; S5, cutting and packaging, cutting the continuous glass fiber reinforced thermoplastic composite material on the production line into suitable lengths to obtain composite material frames, and collecting and packaging the composite material frames.

9. The method for producing a continuous glass fiber reinforced thermoplastic composite frame according to claim 8, characterized in that: The specific process of ultrasonic desizing in the yarn pretreatment is as follows: after the glass fiber is unwound from the unwinding mechanism, it passes around the upper wall of the first wire guide wheel (4), the outer wall of the second wire guide wheel (7), the upper wall of the third wire guide wheel (8), the lower wall of the spray pipe (9) and the upper wall of the fourth wire guide wheel (11) in sequence, and is pulled by the winding mechanism into the deionized washing tank for deionized water washing. A desizing solution is provided in the front chamber and the rear chamber of the ultrasonic desizing tank (1). The desizing solution can be any one of acetone and alcohol solution. The desizing solution in the rear chamber is passed through The submersible pump (26) and the water pipe (14) are used to replenish the front cavity. During replenishment, the desizing solution is sprayed from the plurality of spray holes (901) on the spray pipe (9), thereby washing the glass fibers between the third wire guide wheel (8) and the fourth wire guide wheel (11) to prevent lint. The glass fibers are immersed in the desizing solution for desizing. Ultrasonic desizing is achieved in conjunction with an ultrasonic generator. During the ultrasonic desizing process, bubbles and fiber lint generated in the desizing solution float above the liquid surface. When the liquid surface is higher than the upper end of the arc plate (6), the front cavity is filled with water. The desizing solution flows along the upper wall of the arc plate (6) and the upper wall of the overflow plate (22) to the rear chamber. During the overflow process, the air generated by the air compressor is sent into the interior of the air blowing pipe (27) through the hose (28) and blown toward the surface of the desizing solution through the air blowing port (2701) on the rear wall of the air blowing pipe (27), driving the foam and fiber fluff floating on the surface of the desizing solution to flow to the rear chamber along with the overflowing desizing solution. When the desizing solution overflows to the rear chamber, it is received by the V-shaped groove (21) on the filter plate (20). The desizing solution flows along the upper wall of the arc plate (6) and the upper wall of the overflow plate (22). The fiber fluff is drained out through the drain holes in the V-shaped groove (21), and is intercepted inside the V-shaped groove (21). After overflowing for a certain period of time, the motor (19) starts to rotate, driving the filter plate (20) to rotate. At the same time, the negative pressure pump is started, and a negative pressure adsorption state is formed at the mouth of the dust suction port (2502) of the dust suction head (25) through the negative pressure pipe (16) and the connecting pipe (18), so that the fiber fluff driven to the bottom of the dust suction head (25) when the filter plate (20) rotates is sucked away, thereby maintaining the cleanliness of the deslurry solution in the front chamber and improving the deslurry removal effect.

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