A cord fabric drying and gumming system

Abstract

The application discloses a cord fabric drying and gluing system and belongs to the technical field of cord fabric gluing, which comprises a cord fabric unwinding disc, a desulfurized rubber powder filling device, a desulfurized rubber powder paving device, a desulfurized rubber powder softening and preheating device, a cord fabric gluing and shaping counter roller, a cooling device and a cord fabric winding disc, cord fabric on the cord fabric unwinding disc is sequentially subjected to the desulfurized rubber powder filling device, the desulfurized rubber powder paving device, the desulfurized rubber powder softening and preheating device, the cord fabric gluing and shaping counter roller and the cooling device and is wound on the cord fabric winding disc. The cord fabric drying and gluing system changes the traditional cord fabric gluing mode of liquid glue immersion, adopts the technical scheme of desulfurized rubber powder drying and gluing, completely solves the glue spot problem caused by the cord fabric gluing of liquid glue immersion, solves the problem that the solidified liquid glue is difficult to clean during shutdown, the thickness of the gluing is more uniform, and the product quality of the gluing cord fabric is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of curtain fabric adhesive coating technology, specifically a curtain fabric adhesive coating system. Background Technology

[0002] Cordless tire cord fabric primarily uses strong ply yarns as warp and medium to fine single yarns as weft, resulting in a tightly packed warp and a sparsely packed weft, resembling a curtain, hence the name. Cordless tire cord fabric is mainly used inside the walls of oil pipelines to enable them to withstand enormous pressure, impact loads, and strong vibrations.

[0003] Currently, the adhesive application method for tire cord fabric is impregnation. During the production of impregnated tire cord fabric, the fabric is typically impregnated with phenolic resin and latex, followed by drying, stretching, shaping, and heat treatment to ensure good adhesion to the rubber. However, this process easily leads to adhesive spots forming on the surface of the tire cord fabric, affecting its quality. These adhesive spots are solid foreign matter that accumulates and adheres to the surface of the impregnated tire cord fabric. Their main components are cured phenolic resin and latex, with some containing fine fibers and dust. At these adhesive spot locations, the adhesion between the impregnated tire cord fabric and the rubber decreases significantly, leading to the risk of bulging and delamination in the oil pipeline. This not only degrades the appearance quality of the impregnated tire cord fabric but also jeopardizes the safety of the oil pipeline.

[0004] In the actual production process of tire cord fabric, to improve calendering adhesion, the mass fraction of natural latex is usually significantly increased. The easy coagulation property of natural latex leads to an increase in adhesive spots. In existing tire cord fabric production processes, various factors contribute to the formation of adhesive spots on the fabric surface in order to improve its performance. These adhesive spots also degrade the surface quality of the tire cord fabric, significantly impacting its performance. Therefore, reducing adhesive spots on the tire cord fabric surface is a common but difficult technical problem to solve in the industry. Summary of the Invention

[0005] The purpose of this invention is to provide a drying and gluing system for tire cord fabric. This drying and gluing system not only completely solves the problem of glue spots caused by applying glue to the tire cord fabric, but also solves the problem of difficult-to-clean glue residue after it has hardened during shutdown. Furthermore, it makes the glue coating thickness more uniform, greatly improving the product quality of the glued tire cord fabric.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A tire cord drying and adhesive coating system includes a tire cord unwinding reel, a desulfurized adhesive powder filling device, a desulfurized adhesive powder spreading device, a desulfurized adhesive powder softening and preheating device, tire cord adhesive coating and shaping rollers, a cooling device, and a tire cord take-up reel. The tire cord on the unwinding reel passes sequentially through the desulfurized adhesive powder filling device, the desulfurized adhesive powder spreading device, the desulfurized adhesive powder softening and preheating device, the tire cord adhesive coating and shaping rollers, and the cooling device before being wound onto the tire cord take-up reel. The desulfurized adhesive powder filling device is used to dry and coat the tire cord. The desulfurized rubber powder is infiltrated and filled into the cord fabric. The desulfurized rubber powder spreading device is used to spread the desulfurized rubber powder onto the surface of the cord fabric. The desulfurized rubber powder softening and preheating device is used to heat the cord fabric to soften the desulfurized rubber powder on the cord fabric. The cord fabric coating and shaping roller is used to roll and shape the cord fabric to form a whole. The cooling device is used to lower the temperature of the cord fabric to room temperature. The cord fabric winding reel is used to wind up the dried and coated cord fabric into a reel.

[0008] Preferably, the desulfurized rubber powder filling device includes a desulfurized rubber powder boiling device, an air supply pipeline, and a blower. The desulfurized rubber powder boiling device includes a desulfurized rubber powder boiling chamber, a desulfurized rubber powder tank, and a rubber powder boiling explosion pipe. The blower is connected to one end of the boiling explosion pipe through the air supply pipeline. The boiling explosion pipe is located at the bottom of the desulfurized rubber powder tank, which is located at the bottom of the desulfurized rubber powder boiling chamber. The desulfurized rubber powder boiling chamber is provided with an exhaust port. The blower introduces air into the boiling explosion pipe through the air supply pipeline, and the air is discharged through the exhaust holes distributed on the surface of the boiling explosion pipe. This blows the desulfurized rubber powder in the desulfurized rubber powder tank upwards into the desulfurized rubber powder boiling chamber, causing the desulfurized rubber powder to be in a tumbling and boiling state in the desulfurized rubber powder boiling chamber. When the curtain cloth passes through the desulfurized rubber powder boiling chamber, the boiling... The desulfurized rubber powder is permeated and filled into the curtain fabric; the exhaust port is located in the center of the desulfurized rubber powder boiling chamber, and the exhaust port is connected to the air inlet of the blower through the return air pipe, and a filter is provided at the exhaust port; one end of the desulfurized rubber powder tank is connected to a desulfurized rubber powder conveying pipe, and a negative charge holding box is connected in series in the desulfurized rubber powder conveying pipe. A negative charge holding slide plate is provided in the negative charge holding box, and the negative charge holding slide plate is electrically connected to the charge generator through a wire. The desulfurized rubber powder slides over the negative charge holding slide plate to make the desulfurized rubber powder carry a negative charge; the curtain fabric passes over the positive charge holding roller, and the positive charge holding roller is electrically connected to the charge generator through a wire. The positive charge holding roller is used to make the curtain fabric carry a positive charge.

[0009] Preferably, the rubber powder boiling aeration tube is mounted on a bearing seat via a bearing. A feeding spiral is provided on the outer wall of the rubber powder boiling aeration tube along the axial direction of the tube. The other end of the boiling aeration tube is connected to the output shaft of the gearbox, and the input shaft of the gearbox is connected to the feeding motor. Both the rubber powder boiling aeration tube and the feeding spiral are integrally cast from aluminum alloy. The rubber powder boiling aeration tube is electrically connected to a charge generator via a wire. After being energized, the desulfurized rubber powder is negatively charged through the rubber powder boiling aeration tube and the feeding spiral.

[0010] Preferably, there are two desulfurized rubber powder fluidizers, namely a primary desulfurized rubber powder fluidizer and a secondary desulfurized rubber powder fluidizer. The curtain cloth through-slit on the desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer is connected to the right curtain cloth through-slit on the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer through a closed curtain cloth channel. The desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer is equipped with a steering guide roller. The curtain cloth passes through the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer and the closed curtain cloth channel in sequence, enters the desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer, extends in the opposite direction after passing around the steering guide roller, and exits through the left curtain cloth through-slit on the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer along the original path.

[0011] Preferably, the desulfurized rubber powder paving device includes a paving bin, a desulfurized rubber powder feeding device, a paving scraper, a left limiting roller, and a right limiting roller. The paving bin has a left-side through-slot and a right-side through-slot on both sides. The right-side through-slot is sealed to the left-side through-slot of the desulfurized rubber powder fluidized bed in the secondary desulfurized rubber powder fluidizer via a second curtain sealed channel. The left and right limiting rollers are located inside the paving bin and correspond to the left and right through-slots. The paving scraper is located between the left and right limiting rollers. A partition is provided inside the second curtain sealed channel, dividing it into an upper curtain sealed channel and a lower curtain sealed channel. The top surface of the sealed channel is provided with a cord fabric inlet that communicates with the upper cord fabric sealed channel. The cord fabric that passes over the positive charge bearing roller enters the upper cord fabric sealed channel through the cord fabric inlet. The cord fabric filled with desulfurized rubber powder that passes through the secondary desulfurization rubber powder boiling device enters the lower cord fabric sealed channel, and then passes through the right limiting roller, the left limiting roller, and the left side through-slit in sequence, and exits from the paving bin. The desulfurized rubber powder feeding device is located above the cord fabric filled with desulfurized rubber powder and between the paving scraper and the right limiting roller. The desulfurized rubber powder feeding device is used to transport the desulfurized rubber powder to the surface of the cord fabric. The paving scraper smooths the desulfurized rubber powder on the surface of the upper cord fabric and limits the paving thickness of the desulfurized rubber powder.

[0012] Preferably, the desulfurized rubber powder fluidized bed of the primary desulfurization rubber powder fluidized bed, the desulfurized rubber powder fluidized bed of the secondary desulfurization rubber powder fluidized bed, and the paving bed are all equipped with maintenance doors. The maintenance doors are used to allow personnel to enter the desulfurized rubber powder fluidized bed of the primary desulfurization rubber powder fluidized bed, the desulfurized rubber powder fluidized bed of the secondary desulfurization rubber powder fluidized bed, and the paving bed to install the curtain fabric.

[0013] Preferably, the desulfurized rubber powder feeding device includes a desulfurized rubber powder hopper, a feeding pipe, a feeding screw shaft, and a servo motor. The lower end of the feeding pipe extends from the top of the paving bin into the paving bin and is installed at an angle. The feeding screw shaft is installed inside the feeding pipe and connected to the servo motor at the upper end of the feeding pipe. The top of the feeding pipe wall is provided with a feeding port. The lower end of the desulfurized rubber powder hopper is sealed to the feeding port.

[0014] Preferably, the bottom of the paving bin is provided with a desulfurized rubber powder collection tank, and a pushing screw is provided in the desulfurized rubber powder collection tank. The pushing screw is connected to a motor through a reducer. A dust discharge port is provided at the bottom of the paving bin and at one end near the paving bin, and a valve is provided at the dust discharge port.

[0015] Preferably, the desulfurized rubber powder softening preheating device includes a preheating chamber and an electric heating wire. The electric heating wire is located at the bottom of the preheating chamber, and the temperature inside the preheating chamber is controlled at 76-80°C. The cord fabric that comes out from the paving chamber passes through the preheating chamber and then passes through the cord fabric adhesive-coating and shaping rollers.

[0016] Preferably, the cooling device adopts an air-cooled structure; the desulfurized rubber powder is nano-sized desulfurized rubber powder or micron-sized desulfurized rubber powder.

[0017] The beneficial effects of this invention are as follows:

[0018] This invention changes the traditional method of applying adhesive to tire cord fabric by using a desulfurized adhesive powder drying method. This not only solves the problem of adhesive spots caused by applying adhesive to tire cord fabric, but also solves the problem of difficult cleaning of the cured adhesive during shutdown. Furthermore, it makes the adhesive thickness more uniform and greatly improves the product quality of the adhesive-coated tire cord fabric.

[0019] The desulfurization rubber powder filling device of the present invention uses a blower to blow up nano- or micro-sized desulfurization rubber powder, which then tumbles and boils in a desulfurization rubber powder boiling chamber. This allows the desulfurization rubber powder to fully penetrate into the cord fabric, thereby enhancing the tear resistance of the cord fabric. In particular, the present invention combines "nano- or micro-sized desulfurization rubber powder + boiling penetration + positive and negative charge adsorption", resulting in a more significant penetration and filling effect. It solves the problems of high viscosity and poor fluidity of the adhesive in the impregnation technology, which generally causes the adhesive to only adhere to the surface of the cord fabric, resulting in insufficient wetting and penetration capacity and insufficient tear resistance. Attached Figure Description

[0020] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort:

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 for Figure 1 The diagram shows the structure of the desulfurized rubber powder filling device and the desulfurized rubber powder spreading device.

[0023] Figure 3 for Figure 2 The diagram shows the internal structure of desulfurized rubber powder boiling.

[0024] Figure 4 for Figure 2 The diagram shows the internal structure of the paving bin.

[0025] In the diagram: 1. Desulfurized rubber powder fluidized bed chamber; 2. Desulfurized rubber powder tank; 3. Rubber powder fluidized bed aeration pipe; 4. Air supply duct; 5. Fan; 6. Exhaust port; 7. Cord fabric; 8. Return air duct; 9. Filter; 10. Desulfurized rubber powder conveying duct; 11. Negative charge holding box; 12. Negative charge holding slide plate; 13. Charge generator; 14. Fabric feeding auger; 15. Gearbox; 16. Fabric feeding motor; 17. Primary desulfurized rubber powder fluidized bed; 18. Secondary desulfurized rubber powder fluidized bed; 19. Cord fabric passing seam; 20. Cord fabric sealed channel; 21. Right side cord fabric passing seam; 22. Steering guide roller; 23. Left side cord fabric passing seam; 24. Positive charge holding roller; 25. Paving bin; 26. Paving scraper; 27. Left limit roller; 28. 29. Right limiting roller; 30. Left side crossing seam; 31. Right side crossing seam; 32. Second curtain fabric sealed channel; 33. Partition plate; 34. Upper curtain fabric sealed channel; 35. Lower curtain fabric sealed channel; 36. Curtain fabric inlet; 37. Desulfurized rubber powder collection trough; 38. Pushing screw; 39. Reducer; 40. Motor; 41. Dust discharge outlet; 42. Valve; 43. Inspection door; 44. Desulfurized rubber powder hopper; 45. Feeding pipe; 46. Feeding screw shaft; 47. Servo motor; 48. Feed inlet; 49. Curtain fabric unwinding disc; 50. Desulfurized rubber powder filling device; 51. Desulfurized rubber powder spreading device; 52. Desulfurized rubber powder softening and preheating device; 53. Curtain fabric adhesive-coating and shaping roller; 54. Cooling device; 55. Curtain fabric winding disc. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper surface," "lower surface," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "forward," "reverse," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0028] like Figure 1 As shown, a tire cord drying and gluing system includes a tire cord unwinding reel 48, a desulfurized rubber powder filling device 49, a desulfurized rubber powder spreading device 50, a desulfurized rubber powder softening and preheating device 51, a tire cord gluing and shaping roller 52, a cooling device 53, and a tire cord take-up reel 54. The tire cord on the unwinding reel 48 passes sequentially through the desulfurized rubber powder filling device 49, the desulfurized rubber powder spreading device 50, the desulfurized rubber powder softening and preheating device 51, the tire cord gluing and shaping roller 52, and the cooling device 53 before being wound onto the tire cord take-up reel 54. The desulfurized rubber powder filling device 49 is used to permeate and fill the desulfurized rubber powder into the cord fabric. The desulfurized rubber powder spreading device 50 is used to spread the desulfurized rubber powder onto the surface of the cord fabric. The desulfurized rubber powder softening and preheating device 51 is used to heat the cord fabric to soften the desulfurized rubber powder on the cord fabric. The cord fabric coating and shaping roller 52 is used to roll and shape the cord fabric to form a whole with the desulfurized rubber powder. The cooling device 53 is used to lower the temperature of the cord fabric to room temperature. The cord fabric winding reel 54 is used to wind up the dried and coated cord fabric into a reel. This invention changes the traditional method of coating cord fabric by impregnating it with adhesive solution. It adopts a desulfurized rubber powder drying and coating technology, which not only solves the problem of adhesive spots caused by impregnating cord fabric with adhesive solution, but also solves the problem of difficult cleaning of solidified adhesive solution during shutdown. Moreover, it makes the coating thickness more uniform and greatly improves the product quality of coated cord fabric.

[0029] The desulfurized rubber powder softening and preheating device 51 includes a preheating chamber and an electric heating wire. The electric heating wire is located at the bottom of the preheating chamber. The temperature inside the preheating chamber is controlled at 76-80℃. The cord fabric that comes out from the paving chamber passes through the preheating chamber and then passes through the cord fabric adhesive-coating and shaping rollers.

[0030] The cooling device 53 adopts an air-cooled structure; the desulfurized rubber powder is nano-grade desulfurized rubber powder or micron-grade desulfurized rubber powder.

[0031] like Figure 2 , 3 As shown, the desulfurized rubber powder filling device 49 includes a desulfurized rubber powder boiling device, an air supply pipe 4, and a blower 5. The desulfurized rubber powder boiling device includes a desulfurized rubber powder boiling chamber 1, a desulfurized rubber powder tank 2, and a rubber powder boiling explosion pipe 3. The blower 5 is connected to one end of the boiling explosion pipe 3 through the air supply pipe 4. The boiling explosion pipe 3 is located at the bottom of the desulfurized rubber powder tank 2, which is located at the bottom of the desulfurized rubber powder boiling chamber 1. The chamber 1 is equipped with an exhaust port 6. The blower 5 introduces air into the boiling explosion pipe 3 through the air supply pipe 4, and the air is discharged through the exhaust holes distributed on the surface of the boiling explosion pipe 3. This blows the desulfurized rubber powder in the desulfurized rubber powder tank 2 upward into the desulfurized rubber powder boiling chamber 1, causing the desulfurized rubber powder to be in a tumbling and boiling state in the desulfurized rubber powder boiling chamber 1. When the curtain cloth 7 passes through the desulfurized rubber powder boiling chamber 1, the boiling desulfurized rubber powder permeates and fills the curtain cloth 7. The exhaust port 6 is located in the center of the desulfurized rubber powder boiling chamber 1. The exhaust port 6 is connected to the air inlet of the blower 5 through the return air pipe 8. A filter 9 is installed at the exhaust port 6.

[0032] The curtain fabric 7 carries a positive charge, while the desulfurized rubber powder carries a negative charge. One end of the desulfurized rubber powder tank 2 is connected to a desulfurized rubber powder conveying pipeline 10. The desulfurized rubber powder conveying pipeline 10 is connected in series with a negative charge holding box 11. The negative charge holding box 11 is equipped with a negative charge holding slide plate 12. The negative charge holding slide plate 12 is electrically connected to a charge generator 13 through a wire. The desulfurized rubber powder slides over the negative charge holding slide plate 12 to make the desulfurized rubber powder carry a negative charge. The rubber powder boiling explosion pipe 3 is mounted on a bearing seat via bearings. A feeding spiral 14 is provided on the outer wall of the rubber powder boiling explosion pipe 3 along its axial direction. The other end of the boiling explosion pipe 3 is connected to the output shaft of the gearbox 15, and the input shaft of the gearbox 15 is connected to the feeding motor 16. Both the rubber powder boiling explosion pipe 3 and the feeding spiral 14 are integrally cast from aluminum alloy. The rubber powder boiling explosion pipe 3 is electrically connected to the charge generator 13 via wires. After being energized, the desulfurized rubber powder is negatively charged through the rubber powder boiling explosion pipe 3 and the feeding spiral 14. The cord fabric passes over the positive charge holding roller 24, which is electrically connected to the charge generator via wires. The positive charge holding roller is used to charge the cord fabric with a positive charge.

[0033] The desulfurization rubber powder filling device of the present invention uses a blower to blow up nano- or micro-sized desulfurization rubber powder, which then tumbles and boils in a desulfurization rubber powder boiling chamber. This allows the desulfurization rubber powder to fully penetrate into the cord fabric, thereby enhancing the tear resistance of the cord fabric. In particular, the present invention combines "nano- or micro-sized desulfurization rubber powder + boiling penetration + positive and negative charge adsorption", resulting in a more significant penetration and filling effect. It solves the problems of high viscosity and poor fluidity of the adhesive in the impregnation technology, which generally causes the adhesive to only adhere to the surface of the cord fabric, resulting in insufficient wetting and penetration capacity and insufficient tear resistance.

[0034] There are two desulfurized rubber powder fluidizers: a primary desulfurized rubber powder fluidizer 17 and a secondary desulfurized rubber powder fluidizer 18. The curtain cloth through-slit 19 on the desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer 17 is connected to the right curtain cloth through-slit 21 on the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer 18 through the curtain cloth sealed channel 20. The desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer 17 is equipped with a steering guide roller 22. The curtain cloth 7 passes through the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer 18 and the curtain cloth sealed channel 20 in sequence, enters the desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer, goes around the steering guide roller 22 and extends in the opposite direction, and exits through the left curtain cloth through-slit 23 on the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer 18 through the original path.

[0035] This invention employs a two-stage desulfurized rubber powder boiling penetration mode, which makes the penetration and filling more thorough. After the two-stage desulfurized rubber powder boiling penetration, under the adsorption of positive and negative charges, a layer of desulfurized rubber powder is adsorbed on the lower surface of the cord fabric. Therefore, it is sufficient to spread the desulfurized rubber powder only on the upper surface of the cord fabric. This can improve the force transmission between the cord layers wound in the marine oil pipeline and ensure the adhesion between the cord fabric layers.

[0036] like Figure 2 , 4As shown, the desulfurized rubber powder paving device 50 includes a paving bin 25, a desulfurized rubber powder feeding device, a paving scraper 26, a left limiting roller 27, and a right limiting roller 28. The paving bin 25 has a left-side through-slit 29 and a right-side through-slit 30 on both sides. The right-side through-slit 30 is sealed to the left-side through-slit 23 on the desulfurized rubber powder fluidized bed of the secondary desulfurized rubber powder fluidizer via a second curtain cloth sealed channel 31. The left limiting roller 27 and the right limiting roller... 28 is located within the paving bin 25 and corresponds to the left through joint 29 and the right through joint 30. The paving scraper 26 is located between the left limiting roller 27 and the right limiting roller 28. A partition 32 is provided in the second cord fabric sealed channel 31, which divides the second cord fabric sealed channel 31 into an upper cord fabric sealed channel 33 and a lower cord fabric sealed channel 34. The top surface of the second cord fabric sealed channel 31 is provided with a cord fabric inlet 35 that communicates with the upper cord fabric sealed channel 33.

[0037] The cord fabric that passes over the positive charge bearing roller 24 enters the upper cord fabric sealed channel 33 through the cord fabric inlet 35. The cord fabric filled with desulfurized rubber powder that exits from the secondary desulfurized rubber powder boiling device enters the lower cord fabric sealed channel 34, and then passes through the right limiting roller 28, the left limiting roller 27, and the left side through-slit 29 in sequence, and exits from the paving bin 25. The desulfurized rubber powder feeding device is located above the cord fabric filled with desulfurized rubber powder and between the paving scraper and the right limiting roller. The desulfurized rubber powder feeding device is used to transport the desulfurized rubber powder to the surface of the cord fabric. The paving scraper smooths the desulfurized rubber powder on the surface of the upper cord fabric and limits the paving thickness of the desulfurized rubber powder. The bottom of the paving bin 25 is provided with a desulfurized rubber powder collection tank 36, and a pushing screw 37 is provided in the desulfurized rubber powder collection tank 36. The pushing screw 37 is connected to the motor 39 through a reducer 38. A dust discharge outlet 40 is provided at the bottom of the paving bin 25 and at one end near the paving bin. A valve 41 is provided at the dust discharge outlet 40.

[0038] The paving scraper scrapes off the excess desulfurized rubber powder from the surface of the curtain fabric into the desulfurized rubber powder collection tank. When the desulfurized rubber powder in the collection tank accumulates to a certain height, valve 41 is opened, motor 39 is started, and pusher screw 37 is driven. The pusher screw 37 moves the desulfurized rubber powder in the collection tank 36 to the dust discharge outlet 40, so that the desulfurized rubber powder is discharged from the dust discharge outlet.

[0039] Inspection doors 42 are provided on the desulfurized rubber powder boiling chamber of the primary desulfurized rubber powder boiling device 17, the desulfurized rubber powder boiling chamber of the secondary desulfurized rubber powder boiling device 18, and the paving chamber 25. The inspection doors 42 are used to allow personnel to enter the desulfurized rubber powder boiling chamber of the primary desulfurized rubber powder boiling device 17, the desulfurized rubber powder boiling chamber of the secondary desulfurized rubber powder boiling device 18, and the paving chamber 25 to install the curtain cloth 7.

[0040] The desulfurized rubber powder feeding device includes a desulfurized rubber powder hopper 43, a feeding pipe 44, a feeding screw shaft 45, and a servo motor 46. The lower end of the feeding pipe 44 extends into the paving bin 25 from the top and is installed at an angle. The feeding screw shaft 45 is installed inside the feeding pipe 44 and connected to the servo motor 46 at the upper end of the feeding pipe. The top of the wall of the feeding pipe 44 is provided with a feeding port 47. The lower end of the desulfurized rubber powder hopper 43 is sealed to the feeding port 47.

[0041] When adding material to the surface of the curtain fabric, the servo motor 46 is started, which drives the feeding screw shaft 45. The feeding screw shaft 45 discharges the material in the desulfurized rubber powder hopper 43 downward. Because the servo motor 46 is used, the discharge speed can be controlled.

[0042] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those embodiments or examples, without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A curtain fabric drying and adhesive application system, characterized in that: The system comprises a tire cord unwinding reel, a desulfurized rubber powder filling device, a desulfurized rubber powder spreading device, a desulfurized rubber powder softening and preheating device, tire cord adhesive-coating and shaping rollers, a cooling device, and a tire cord take-up reel. The tire cord on the unwinding reel passes sequentially through the desulfurized rubber powder filling device, the desulfurized rubber powder spreading device, the desulfurized rubber powder softening and preheating device, the tire cord adhesive-coating and shaping rollers, and the cooling device before being wound onto the tire cord take-up reel. The desulfurized rubber powder filling device is used to permeate and fill the tire cord with desulfurized rubber powder. The desulfurized rubber powder is spread onto the surface of the cord fabric by the desulfurized rubber powder spreading device, the desulfurized rubber powder softening and preheating device is heated to soften the desulfurized rubber powder on the cord fabric, the cord fabric coating and shaping rollers are used to roll and shape the cord fabric to form a whole, the cooling device is used to lower the temperature of the cord fabric to room temperature, and the cord fabric winding reel is used to wind up the dried and coated cord fabric into a reel. The desulfurized rubber powder filling device includes a desulfurized rubber powder boiling device, an air supply pipeline, and a blower. The desulfurized rubber powder boiling device includes a desulfurized rubber powder boiling chamber, a desulfurized rubber powder tank, and a rubber powder boiling explosion pipe. The blower is connected to one end of the boiling explosion pipe through the air supply pipeline. The boiling explosion pipe is located at the bottom of the desulfurized rubber powder tank, which is located at the bottom of the desulfurized rubber powder boiling chamber. The desulfurized rubber powder boiling chamber is provided with an exhaust port. The blower inputs air into the boiling explosion pipe through the air supply pipeline and discharges it through the exhaust holes distributed on the surface of the boiling explosion pipe, blowing the desulfurized rubber powder in the desulfurized rubber powder tank upward into the desulfurized rubber powder boiling chamber, so that the desulfurized rubber powder is in a tumbling and boiling state in the desulfurized rubber powder boiling chamber. When the curtain cloth passes through the desulfurized rubber powder boiling chamber, the boiling desulfurized rubber powder permeates and fills the curtain cloth. The exhaust port is located in the center of the desulfurized rubber powder fluidized bed chamber. The exhaust port is connected to the air inlet of the blower through a return air pipe, and a filter is installed at the exhaust port. One end of the desulfurized rubber powder tank is connected to a desulfurized rubber powder conveying pipe. A negative charge holding box is connected in series with the desulfurized rubber powder conveying pipe. A negative charge holding plate is installed inside the negative charge holding box. The negative charge holding plate is electrically connected to a charge generator through a wire. The desulfurized rubber powder slides over the negative charge holding plate to make the desulfurized rubber powder carry a negative charge. The curtain cloth passes over the positive charge holding roller. The positive charge holding roller is electrically connected to the charge generator through a wire, and the positive charge holding roller is used to make the curtain cloth carry a positive charge. The desulfurized rubber powder is nano-sized or micron-sized.

2. The curtain fabric drying and adhesive application system according to claim 1, characterized in that: The rubber powder boiling aeration tube is mounted on a bearing seat via a bearing. A feeding spiral is provided on the outer wall of the rubber powder boiling aeration tube along the axial direction of the tube. The other end of the boiling aeration tube is connected to the output shaft of the gearbox, and the input shaft of the gearbox is connected to the feeding motor. Both the rubber powder boiling aeration tube and the feeding spiral are integrally cast from aluminum alloy. The rubber powder boiling aeration tube is electrically connected to a charge generator via a wire. After being energized, the desulfurized rubber powder is negatively charged through the rubber powder boiling aeration tube and the feeding spiral.

3. The curtain fabric drying and adhesive application system according to claim 2, characterized in that: The desulfurized rubber powder fluidizer is provided in two parts: a primary desulfurized rubber powder fluidizer and a secondary desulfurized rubber powder fluidizer. The curtain cloth through-slit on the desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer is connected to the right curtain cloth through-slit on the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer through a sealed curtain cloth channel. The desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer is equipped with a steering guide roller. The curtain cloth passes through the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer and the sealed curtain cloth channel in sequence, enters the desulfurized rubber powder fluidizer chamber of the primary desulfurized rubber powder fluidizer, extends in the opposite direction after passing around the steering guide roller, and exits through the left curtain cloth through-slit on the desulfurized rubber powder fluidizer chamber of the secondary desulfurized rubber powder fluidizer along the original path.

4. The curtain fabric drying and adhesive application system according to claim 3, characterized in that: The desulfurized rubber powder paving device includes a paving bin, a desulfurized rubber powder feeding device, a paving scraper, a left limiting roller, and a right limiting roller. The paving bin has a left-side through-slot and a right-side through-slot on both sides. The right-side through-slot is sealed to the left-side through-slot of the desulfurized rubber powder fluidized bed chamber of the secondary desulfurized rubber powder fluidizer via a second curtain fabric sealed channel. The left and right limiting rollers are located inside the paving bin and correspond to the left and right through-slots. The paving scraper is located between the left and right limiting rollers. A partition is provided inside the second curtain fabric sealed channel, dividing it into an upper curtain fabric sealed channel and a lower curtain fabric sealed channel. The top surface of the closed channel is provided with a cord fabric inlet that communicates with the upper cord fabric sealed channel. The cord fabric that passes over the positive charge bearing roller enters the upper cord fabric sealed channel through the cord fabric inlet. The cord fabric filled with desulfurized rubber powder that passes through the secondary desulfurization rubber powder boiling device enters the lower cord fabric sealed channel, and then passes through the right limiting roller, the left limiting roller, and the left side through-slot in sequence, and exits from the paving bin. The desulfurized rubber powder feeding device is located above the cord fabric filled with desulfurized rubber powder and between the paving scraper and the right limiting roller. The desulfurized rubber powder feeding device is used to transport the desulfurized rubber powder to the surface of the cord fabric. The paving scraper smooths the desulfurized rubber powder on the surface of the upper cord fabric and limits the paving thickness of the desulfurized rubber powder.

5. The curtain fabric drying and adhesive application system according to claim 4, characterized in that: The desulfurized rubber powder fluidized bed of the primary desulfurization rubber powder fluidized bed, the desulfurized rubber powder fluidized bed of the secondary desulfurization rubber powder fluidized bed, and the paving bed are all equipped with maintenance doors. These maintenance doors allow personnel to enter the desulfurized rubber powder fluidized bed of the primary desulfurization rubber powder fluidized bed, the desulfurized rubber powder fluidized bed of the secondary desulfurization rubber powder fluidized bed, and the paving bed to install the curtain fabric.

6. The curtain fabric drying and adhesive application system according to claim 5, characterized in that: The desulfurized rubber powder feeding device includes a desulfurized rubber powder hopper, a feeding pipe, a feeding screw shaft, and a servo motor. The lower end of the feeding pipe extends from the top of the paving bin into the paving bin and is installed at an angle. The feeding screw shaft is installed inside the feeding pipe and connected to the servo motor at the upper end of the feeding pipe. The top of the feeding pipe wall is provided with a feeding port. The lower end of the desulfurized rubber powder hopper is sealed to the feeding port.

7. The curtain fabric drying and adhesive application system according to claim 6, characterized in that: The bottom of the paving bin is equipped with a desulfurized rubber powder collection tank, and a pushing screw is installed in the desulfurized rubber powder collection tank. The pushing screw is connected to a motor through a reducer. A dust discharge outlet is provided at the bottom of the paving bin and at one end close to the paving bin. A valve is installed at the dust discharge outlet.

8. The curtain fabric drying and adhesive application system according to claim 7, characterized in that: The desulfurized rubber powder softening and preheating device includes a preheating chamber and an electric heating wire. The electric heating wire is located at the bottom of the preheating chamber. The temperature inside the preheating chamber is controlled at 76-80℃. The cord fabric that comes out from the paving chamber passes through the preheating chamber and then passes through the cord fabric adhesive-coating and shaping rollers. The cooling device adopts an air-cooled structure.

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