A flame retardant fabric coating apparatus

Abstract

The utility model provides a kind of flame-retardant fabric coating equipment, it is related to fabric processing technical field, the flame-retardant fabric coating equipment includes storage part, guide part, extrusion part, circulation part, circulation part is set on storage part, circulation part is used to draw out flame retardant in storage part, and the impurity in flame retardant is filtered out, then after filtering, the filtered flame retardant is retransported to storage part, this kind of coating equipment when using, it can continuously filter flame retardant in box in the process of treating fabric, to avoid the continuous accumulation of fiber in box and affect the processing quality of fabric, and by setting baffle, sleeve and liquid outlet, it can make flame retardant above fabric move to the both sides of box, facilitate to realize the circulation of all flame retardant in box, so that flame retardant in box can be effectively pumped away and filtered by circulating pump, and use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing technology, specifically a flame-retardant fabric coating device. Background Technology

[0002] Treating fabrics with flame retardants can increase their flame retardancy. However, during the treatment, some fibers on the fabric surface move within the flame retardant solution in the treatment chamber, causing some of these fibers to enter the flame retardant. As more fabric is treated, the amount of fibers in the flame retardant also increases, resulting in a poorer treatment effect. Replacing the flame retardant directly would require production to stop, which takes up a significant amount of time and is difficult to meet production demands. Utility Model Content

[0003] The purpose of this invention is to provide a flame-retardant fabric coating device, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the flame-retardant fabric coating equipment includes: Storage section, the storage section being used to store flame retardants; A guide section, which is disposed in the storage section, is used to guide the fabric into the storage section and impregnate it in the flame retardant, and then guide the impregnated fabric out of the storage section. The extrusion section is disposed within the storage section and cooperates with the guide section to extrude the impregnated fabric. The circulation section is located on the storage section. The circulation section is used to extract the flame retardant from the storage section, filter out the impurities in the flame retardant, and then transport the filtered flame retardant back into the storage section.

[0005] Preferably, the storage unit includes a box with an opening at the top. A flat plate and a sloping plate are respectively provided at both ends of the opening at the top of the box, and a V-shaped plate is provided at the bottom of the box.

[0006] Preferably, the guide section includes an inlet roller, a pressure roller, and an outlet roller. The inlet roller is disposed on one side of the flat plate inside the housing, the outlet roller is disposed on one side of the inclined plate inside the housing, and the pressure roller is located inside the housing and is submerged in flame retardant. The inlet roller, pressure roller, and outlet roller are all rotatably connected to the housing.

[0007] Preferably, the extrusion section includes a fixed frame mounted on the housing and a horizontal plate. Two extension plates are mounted on the lower surface of the horizontal plate, and a movable roller is positioned between the two extension plates. The movable roller is rotatably connected to the extension plates. Grooves for accommodating the extension plates are provided on both sides of the housing. Fixed rods are mounted on the lower surfaces of both ends of the horizontal plate. The lower ends of the fixed rods pass through the fixed frame and are slidably connected to it. A stop block is mounted on the lower end of the fixed rod. A spring is sleeved on the fixed rod, located between the fixed frame and the horizontal plate. A screw is rotatably connected to the fixed frame, and a threaded sleeve is mounted on the horizontal plate. The screw and the threaded sleeve are threadedly connected.

[0008] Preferably, the circulation unit includes a circulation pump with an input port and an output port. A filter tube is provided on the outside of the housing, and a cap is threaded to the upper end of the filter tube. A stepped groove is provided inside the filter tube, and a filter basket is placed on the stepped groove. A handle is provided on the filter basket. A sleeve is provided inside the housing, and the sleeve is connected to the filter tube. A liquid outlet is provided on the lower surface of the sleeve. The unit also includes a first pipe and a second pipe. One end of the first pipe is located at the bottom of the housing and communicates with the interior of the housing. The other end of the first pipe is connected to the input port of the circulation pump. One end of the second pipe is connected to the output port of the circulation pump, and the other end of the second pipe is connected to the filter tube. The connection point between the second pipe and the filter tube is located above the filter basket.

[0009] Preferably, the interior of the housing is provided with a guide plate, which is inclined and located between the lower pressure roller and the outlet roller.

[0010] The beneficial effects of this utility model are: During the fabric processing, this coating equipment continuously filters the flame retardant inside the chamber to prevent the accumulation of fibers that could affect the fabric processing quality. Furthermore, the baffle plate, sleeve, and outlet allow the flame retardant above the fabric to move to both sides of the chamber, facilitating the circulation of all the flame retardant within the chamber. This ensures that the flame retardant is effectively pumped away and filtered by the circulation pump, resulting in excellent performance. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0012] Figure 2 This is a top view of a specific embodiment of the present invention.

[0013] Figure 3 This is a schematic diagram of the internal structure of the box.

[0014] Figure 4This is a structural diagram of the fixed frame and the horizontal plate.

[0015] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0016] Figure 6 This is a schematic diagram of the internal structure of the filter tube.

[0017] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle.

[0018] Figure 8 This is a schematic diagram of the filter basket.

[0019] In the diagram: 1. Fabric; 2. Box body; 3. Flat plate; 4. Inclined plate; 5. V-shaped plate; 6. Inlet roller; 7. Downward pressure roller; 8. Outlet roller; 9. Fixing frame; 10. Horizontal plate; 11. Extension plate; 12. Movable roller; 13. Fixing rod; 14. Stop block; 15. Spring; 16. Screw; 17. Screw sleeve; 18. Circulation pump; 19. Filter tube; 20. Filter basket; 21. Handle; 22. Sleeve; 23. Liquid outlet; 24. Pipe 1; 25. Pipe 2; 26. Guide plate; 27. Sealing cap. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0021] like Figure 1-8 As shown, a flame-retardant fabric coating device includes: Storage section, used for storing flame retardants; The guide section is located inside the storage section and is used to guide the fabric 1 into the storage section and impregnate it in the flame retardant, and then guide the impregnated fabric 1 out of the storage section. The extrusion section is located inside the storage section. The extrusion section cooperates with the guide section to extrude the impregnated fabric 1. The circulation section is located on the storage section. The circulation section is used to extract the flame retardant from the storage section, filter out the impurities in the flame retardant, and then return the filtered flame retardant to the storage section.

[0022] Furthermore, the storage section includes a box 2 with an opening at the top. Flat plates 3 and inclined plates 4 are respectively provided at both ends of the opening at the top of the box 2, and a V-shaped plate 5 is provided at the bottom inside the box 2.

[0023] The interior of the box 2 is used to store flame retardants. The flame retardants can be phosphorus-based flame retardants such as ammonium polyphosphate, phosphate esters, and reactive phosphorus-based flame retardants, or inorganic flame retardants such as aluminum hydroxide, magnesium hydroxide, and zinc borate. They can also be organosilicon flame retardant coatings such as silicone resins and silicate sols. In this application, ammonium polyphosphate is used, which can improve the flame retardant efficiency of the fabric 1.

[0024] During the processing of fabric 1, the flame retardant is continuously consumed, so it is necessary to periodically supply new flame retardant to the tank 2. Alternatively, a solenoid valve, a liquid level sensor, and a pipeline connected to the flame retardant storage tank can be installed. When the flame retardant in the tank 2 is lower than a certain level, flame retardant is automatically supplied to the tank 2. When the flame retardant level reaches a certain height, the supply of flame retardant to the tank 2 is stopped. This can be controlled by a PLC control system.

[0025] Furthermore, the guide section includes an inlet roller 6, a pressure roller 7, and an outlet roller 8. The inlet roller 6 is located on one side of the flat plate 3 inside the housing 2, the outlet roller 8 is located on one side of the inclined plate 4 inside the housing 2, and the pressure roller 7 is located inside the housing 2 and is submerged in flame retardant. The inlet roller 6, the pressure roller 7, and the outlet roller 8 are all rotatably connected to the housing 2.

[0026] The inlet roller 6, the pressure roller 7, and the outlet roller 8 are all metal rollers. The two ends of the equipment are respectively equipped with an unwinding mechanism and a winding mechanism. The unwinding mechanism is used to unwind the rolled fabric 1, and the winding mechanism is used to wind up the fabric 1 after it has been impregnated. After the fabric 1 is unwound from the unwinding mechanism, it will enter from above the inlet roller 6, pass under the pressure roller 7, and then pass above the outlet roller 8 before being wound up by the winding mechanism. The movement of the fabric 1 is provided by the traction force of the winding mechanism.

[0027] The inlet roller 6 and outlet roller 8 are never submerged in the flame retardant inside the housing 2.

[0028] Furthermore, the extrusion section includes a fixed frame 9 mounted on the housing 2, and a horizontal plate 10. Two extension plates 11 are mounted on the lower surface of the horizontal plate 10, and a movable roller 12 is mounted between the two extension plates 11. The movable roller 12 is rotatably connected to the extension plates 11. Grooves for accommodating the extension plates 11 are provided on both sides of the housing 2. Fixed rods 13 are mounted on the lower surfaces of both ends of the horizontal plate 10. The lower ends of the fixed rods 13 pass through the fixed frame 9 and are slidably connected to the fixed frame 9. A stop block 14 is mounted on the lower end of the fixed rods 13. A spring 15 is sleeved on the fixed rods 13. The spring 15 is located between the fixed frame 9 and the horizontal plate 10. A screw 16 is rotatably connected to the fixed frame 9. A screw sleeve 17 is mounted on the horizontal plate 10. The screw 16 and the screw sleeve 17 are threadedly connected.

[0029] Fabric 1 needs to pass between the movable roller 12 and the guide roller 8. The degree of compression on fabric 1 is controlled by adjusting the distance between the movable roller 12 and the guide roller 8. This can be achieved by controlling the rotation of the screw 16. When the screw 16 rotates, it can move vertically upward or downward through the threaded engagement with the screw sleeve 17, the sliding connection between the fixed rod 13 and the fixed frame 9, and the engagement of the extension plate 11 and the groove. When it is necessary to increase the compression on fabric 1, the movable roller 12 is controlled to move downward. When it is necessary to reduce the compression on fabric 1, the movable roller 12 is controlled to move upward. The appropriate compression force can be selected according to different fabrics 1.

[0030] The rotation of the movable roller 12 and the guide roller 8 is driven by the traction force provided by the external winding mechanism, which moves the fabric 1. The friction between the fabric 1 and the movable roller 12 and the guide roller 8 drives the movable roller 12 and the guide roller 8 to rotate.

[0031] When the moving roller 12 and the guide roller 8 squeeze the fabric 1, the excess flame retardant squeezed out will fall onto the inclined plate 4 and flow back into the box 2. The treated fabric 1 can then be dried.

[0032] The moving speed of fabric 1 is about 10cm / s, so that the moving roller 12 and the output roller 8 keep a low rotation speed to avoid the flame retardant that is squeezed out being brought back to fabric 1 in large quantities by the moving roller 12 and the output roller 8. Scrapers can be set inside the box 2, below the output roller 8, between the two extension plates 11, and above the moving roller 12 to reduce the amount of flame retardant that is brought back to fabric 1.

[0033] Furthermore, the circulation section includes a circulation pump 18, which has an input port and an output port. A filter tube 19 is provided on the outside of the housing 2. A cap 27 is threadedly connected to the upper end of the filter tube 19. A stepped groove is provided inside the filter tube 19. A filter basket 20 is placed on the stepped groove. A handle 21 is provided on the filter basket 20. A sleeve 22 is provided inside the housing 2. The sleeve 22 is connected to the filter tube 19. An outlet 23 is provided on the lower surface of the sleeve 22. The section also includes a first tube 24 and a second tube 25. One end of the first tube 24 is located at the bottom of the housing 2 and communicates with the interior of the housing 2. The other end of the first tube 24 is connected to the input port of the circulation pump 18. One end of the second tube 25 is connected to the output port of the circulation pump 18. The other end of the second tube 25 is connected to the filter tube 19. The connection point between the second tube 25 and the filter tube 19 is located above the filter basket 20.

[0034] V-shaped plate 5 allows the flame retardant in the chamber 2 to flow towards the lowest position. Since the surface of fabric 1 has some fibers, as fabric 1 moves within the chamber 2, some of these fibers will enter the flame retardant. As more and more fabric 1 is processed, the amount of fibers in the flame retardant also increases, leading to a poorer treatment effect on fabric 1. At this point, the flame retardant at the bottom of the chamber 2 can be drawn away by circulation pump 18 and pipe 24 (which can be controlled by a PLC system), and then transported to filter pipe 19 through pipe 25. When the flame retardant passes through the filter basket 20, a large amount of fibers will be intercepted by the filter basket 20, allowing a small amount of flame retardant to flow back into the housing 2 through the sleeve 22 and the outlet 23. The outlet 23 is located above the fabric 1, which facilitates pushing the flame retardant that was originally located above the fabric 1 to both sides of the inner wall of the housing 2, so that the flame retardant located above has a greater probability of entering below the fabric 1, making it easier for the pipe 24 to draw away the flame retardant, so that the flame retardant in all positions in the housing 2 can be effectively filtered.

[0035] After a period of use, the device is stopped, and then the cap 27 is unscrewed. The internal filter basket 20 is removed by the handle 21. After cleaning the fibers inside the filter basket 20 and drying the filter basket 20, the filter basket 20 is placed back into the filter tube 19 to continue filtering the flame retardant.

[0036] Furthermore, a guide plate 26 is provided inside the housing 2. The guide plate 26 is inclined and located between the pressure roller 7 and the discharge roller 8. The height of the guide plate 26 is higher than the liquid level of the flame retardant inside the housing 2. When the movable roller 12 and the discharge roller 8 squeeze the fabric 1, the flame retardant that is squeezed out and located above the fabric 1 will accumulate in large quantities on the fabric 1. The inclined guide plate 26 can be used to allow most of this flame retardant to flow to both sides of the housing 2, so as to avoid the flame retardant continuously accumulating on the fabric 1.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A flame resistant fabric coating apparatus characterized by, include: The storage section is used to store flame retardants. The storage section includes a box with an opening at the top. Flat plates and inclined plates are respectively provided at both ends of the opening at the top of the box. A V-shaped plate is provided at the bottom inside the box. A guiding section, located within a storage section, guides the fabric into the storage section and impregnates it with a flame retardant, then guides the impregnated fabric out of the storage section. The guiding section includes an inlet roller, a pressure roller, and an outlet roller. The inlet roller is located on one side of a flat plate inside the housing, the outlet roller is located on one side of an inclined plate inside the housing, and the pressure roller is located inside the housing and is submerged in a flame retardant. The inlet roller, pressure roller, and outlet roller are all rotatably connected to the housing. The extrusion section is located within the storage section. It cooperates with the guide section to extrude the impregnated fabric. The extrusion section includes a fixed frame mounted on the housing and a horizontal plate. Two extension plates are mounted on the lower surface of the horizontal plate, with a movable roller rotatably connected to the extension plates between them. Grooves for accommodating the extension plates are provided on both sides of the housing. Fixed rods are mounted on the lower surfaces of both ends of the horizontal plate. The lower ends of the fixed rods pass through the fixed frame and are slidably connected to it. A stop block is mounted on the lower end of each fixed rod. A spring is sleeved on the fixed rod, located between the fixed frame and the horizontal plate. A screw is rotatably connected to the fixed frame, and a threaded sleeve is mounted on the horizontal plate. The screw and the threaded sleeve are threadedly connected. The circulation section is located on top of the storage section. It extracts the flame retardant from the storage section, filters out impurities, and then returns the filtered flame retardant to the storage section. The circulation section includes a circulation pump with an input port and an output port. A filter tube is located on the outside of the housing, with a cap threaded to its upper end. A stepped groove is located inside the filter tube, on which a filter basket is placed. A handle is provided on the filter basket. A sleeve is located inside the housing, connected to the filter tube. An outlet is located on the lower surface of the sleeve. The system also includes two pipes: one end of pipe one is located at the bottom of the housing and communicates with the interior of the housing; the other end of pipe one is connected to the input port of the circulation pump; one end of pipe two is connected to the output port of the circulation pump; the other end of pipe two is connected to the filter tube; and the connection point between pipe two and the filter tube is located above the filter basket. The box is equipped with a guide plate inside, which is inclined and located between the lower pressure roller and the outlet roller.

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