Glass fiber yarn plastic coating device

Abstract

The utility model relates to a glass fiber yarn plastic coating device, which belongs to the technical field of plastic coating equipment and comprises a plastic coating box, the plastic coating box is provided with a cooling area, a drying area and a plastic coating area, a yarn guide tube coaxial with a through hole is arranged in the drying area, a heating coil is spirally wound outside the yarn guide tube, a liquid distribution ring tube coaxial with the yarn guide tube is fixed at the bottom of a partition plate II, and a liquid distribution ring tube is fixed at the bottom of the partition plate II. A plurality of vertical plastic coating spray pipes are arranged at the bottom of the liquid distribution ring pipe in a circular array mode, and a plurality of spray heads obliquely spraying towards the central axis of the liquid distribution ring pipe are arranged on the inner wall of each plastic coating spray pipe in the vertical direction. The glass fiber yarn vertically enters the plastic coating area, the drying area and the cooling area in sequence under the guiding effect of the first guide wheel, due to the fact that the glass fiber yarn is vertically conveyed, the influence of the gravity on the uniformity degree of plastic coating liquid is small, the glass fiber yarn directly enters the yarn guide pipe in the drying area to be dried after being sprayed, the guide wheel cannot influence the uniformity degree of a spraying layer, and the production efficiency is improved. And the drying effect is better.

Description

Technical Field

[0001] The utility model relates to a glass fiber yarn plastic coating device, belonging to the technical field of plastic coating equipment. Background Art

[0002] Glass fiber is an excellent inorganic non-metallic material and is widely used. In the production process of glass fiber, the plastic coating process is a key link to cover a protective and functional coating on the surface of glass fiber. Traditional glass fiber plastic coating devices often have some deficiencies. For example, when glass fiber is plastic coated, it is horizontally routed, and there will be unevenness under the influence of gravity. And after plastic coating, it often passes through guide wheels to the drying area, which is likely to affect the uniformity of the plastic coating layer, and using hot air for drying is also likely to cause changes in the plastic coating layer. Content of the Utility Model

[0003] The utility model provides a glass fiber yarn plastic coating device to solve the problems in the above background art.

[0004] The utility model relates to a glass fiber yarn plastic coating device, which includes a plastic coating box. The plastic coating box is vertically provided with a first partition board and a second partition board that divide it into a cooling area, a drying area and a plastic coating area. The middle of the first partition board and the second partition board are both provided with coaxial through holes. In the drying area, there is a yarn guiding tube coaxial with the through hole. The outside of the yarn guiding tube is spirally wound with a heating coil. At the bottom of the second partition board, there is a liquid distribution ring tube coaxial with the yarn guiding tube. The bottom of the liquid distribution ring tube is circularly arrayed with multiple vertical plastic coating spray tubes. Along the vertical direction on the inner wall of each plastic coating spray tube, there are multiple nozzles that spray obliquely towards the central axis of the liquid distribution ring tube. Below the plastic coating spray tubes and in the cooling area, there are both a first guide wheel.

[0005] As a preference, on the left and right side walls of the cooling area, second guide wheels are staggered. The top of the plastic coating box is fixed with a cover plate. In the middle of the cover plate, there is a yarn outlet hole. Below the yarn outlet hole, there is also a second guide wheel, which delays the time of the glass fiber yarn in the cooling area and increases the cooling effect.

[0006] As a preference, in the middle of the top of the first partition board, there is a gas distribution hollow disk. In the middle of the gas distribution hollow disk, there is a guiding tube inserted into the through hole on the first partition board. The top of the guiding tube passes through the gas distribution hollow disk. The top of the gas distribution hollow disk is provided with inclined cold air spray holes. The outside of the gas distribution hollow disk is connected with a cooling air inlet pipe. On the outer side wall of the upper part of the plastic coating box, there is a cooling air outlet pipe. Through the gas distribution hollow disk, the incoming cooling air can be distributed, and the cooling effect is better, and the cooling air entering the drying area is reduced as much as possible.

[0007] As a preference, a heat preservation layer is provided on the side wall of the drying area to increase the heat preservation effect. Both ends of the yarn guiding tube are fixed with fixing frames, and the fixing frames are fixed on the plastic coating box.

[0008] As a preference, a guiding wheel one is rotatably installed on a bracket, the bracket is fixed on a fixing plate, and the end of the fixing plate is fixed on the plastic coating box, which facilitates the installation of the guiding wheel one.

[0009] As a preference, a suction pipe is arranged at the lower part of the plastic coating area, the top of the suction pipe is connected to a liquid distribution ring pipe, and a filter and a liquid pump are arranged on the suction pipe, which can achieve the recycling of the plastic coating liquid and reduce waste.

[0010] As a preference, a liquid adding pipe is fixed on the plastic coating box at the upper part of the plastic coating area, and a liquid discharging pipe is arranged on the bottom side wall of the plastic coating box, which facilitates the addition and replacement of the plastic coating liquid.

[0011] As a preference, a horizontal installation hole is arranged on the plastic coating box at the outer side of the middle part of the plastic coating area, and a guiding wheel three is arranged outside the installation hole.

[0012] The utility model has the following beneficial effects:

[0013] The cooling area, the drying area and the plastic coating area are arranged vertically in the plastic coating box. Under the guiding action of the guiding wheel one, the glass fiber yarn vertically enters the plastic coating area, the drying area and the cooling area in sequence. In the plastic coating area, the plastic coating liquid is evenly sprayed through a nozzle. Since the glass fiber yarn is vertically conveyed, the influence of gravity on the evenness of the plastic coating liquid is relatively small. And after the glass fiber yarn is sprayed, it directly enters the guide yarn pipe in the drying area for drying. The guide wheel will not affect the evenness of the sprayed coating, and the drying effect is better. After drying, it is cooled, which is convenient for the conveying of the glass fiber yarn after being discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view structural schematic diagram inside the utility model;

[0015] Figure 2 is Figure 1 partial structural schematic diagram of Figure 1 ;

[0016] Figure 3 is Figure 1 partial structural schematic diagram of Figure 2 ;

[0017] Figure 4 is the front view structural schematic diagram outside the utility model;

[0018] Figure 5 is Figure 2 the enlarged structural schematic diagram at A in

[0019] In the figure: 1. Cover plate; 2. Plastic-coated box; 3. Second guide wheel; 4. Fixed plate; 5. First partition plate; 6. Guide pipe; 7. Fixed frame; 8. Liquid distribution ring pipe; 9. Second partition plate; 10. First guide wheel; 11. Mounting hole; 12. Third guide wheel; 13. Drain pipe; 14. Filter; 15. Liquid pump; 16. Suction pipe; 17. Liquid adding pipe; 18. Plastic-coated spray pipe; 19. Thermal insulation layer; 20. Heating coil; 21. Yarn guide pipe; 22. Cooling air inlet pipe; 23. Air distribution hollow disc; 24. Cooling air outlet pipe; 25. Maintenance plate. Specific implementation manner

[0020] The present utility model will be further described below in conjunction with embodiments.

[0021] Embodiment 1, as Figures 1 to 5 shown, the present utility model is a glass fiber yarn plastic coating device, including a plastic-coated box 2. The plastic-coated box 2 is provided with a first partition plate 5 and a second partition plate 9 that divide it into a cooling area, a drying area, and a plastic coating area along the vertical direction. Through holes with the same axis are provided in the middle of the first partition plate 5 and the second partition plate 9. A yarn guide pipe 21 coaxial with the through hole is provided in the drying area. A heating coil 20 is spirally wound around the outside of the yarn guide pipe 21. A liquid distribution ring pipe 8 coaxial with the yarn guide pipe 21 is fixed at the bottom of the second partition plate 9. A plurality of vertical plastic-coated spray pipes 18 are circularly arranged at the bottom of the liquid distribution ring pipe 8. A plurality of nozzles that spray obliquely towards the central axis of the liquid distribution ring pipe 8 are provided along the vertical direction on the inner wall of each plastic-coated spray pipe 18. First guide wheels 10 are provided below the plastic-coated spray pipes 18 and in the cooling area.

[0022] During operation, the glass fiber yarn bypasses from the bottom of the first guide wheel 10 in the plastic coating area, then vertically passes through the through hole on the second partition plate 9 from the central axis of the liquid distribution ring pipe 8, then enters the yarn guide pipe 21, then passes through the through hole on the first partition plate 5 and enters the cooling area, and is guided by the first guide wheel 10 in the cooling area. During plastic coating, when the glass fiber yarn passes through the nozzles on the plastic-coated spray pipe 18, it is evenly coated with the sprayed plastic coating liquid, then enters the yarn guide pipe 21 for heating and drying, and then is cooled when passing through the cooling area.

[0023] Embodiment 2, on the basis of Embodiment 1, second guide wheels 3 are alternately provided on the left and right side walls of the cooling area. A cover plate 1 is fixed on the top of the plastic-coated box 2. An outlet hole for the yarn is provided in the middle of the cover plate 1. Second guide wheels 3 are also provided below the outlet hole for the yarn. Maintenance ports are provided on the rear side wall of the plastic-coated box 2 corresponding to the cooling area, the drying area, and the plastic coating area, and a maintenance plate 25 is provided at the maintenance port.

[0024] At the middle of the top of the first partition plate 5, a gas-distributing hollow disk 23 is fixed. At the middle of the gas-distributing hollow disk 23, a guiding tube 6 inserted into the through-hole on the first partition plate 5 is fixed. The top of the guiding tube 6 passes through the gas-distributing hollow disk 23. The top of the gas-distributing hollow disk 23 is provided with inclined cold air spray holes. The outer side of the gas-distributing hollow disk 23 is connected with a cooling air inlet pipe 22. On the outer side wall of the upper part of the plastic coating box 2, a cooling air outlet pipe 24 is provided. The cooling air inlet pipe 22 is connected with a cooling fan. Cold air enters the gas-distributing hollow disk 23 from the cooling air inlet pipe 22, and then evenly sprays out from the cold air spray holes. The cold air is evenly distributed in the cooling area, contacts the fiberglass yarn in the cooling area, and conducts cooling.

[0025] A heat insulation layer 19 is provided on the side wall of the drying area. Fixed frames 7 are fixed at both ends of the yarn guiding tube 21, and the fixed frames 7 are fixed on the plastic coating box 2. The heating coil 20 is an electric heating tube. The heating coil 20 is controlled separately in multiple sections along the axial direction. A temperature sensor is arranged inside the yarn guiding tube 21. The temperature sensor is connected to a controller, and the controller is connected to the electric heating tube, which is convenient for temperature control.

[0026] The first guiding wheel 10 is rotatably installed on a bracket, the bracket is fixed on a fixing plate 4, and the end of the fixing plate 4 is fixed on the plastic coating box 2.

[0027] A suction pipe 16 is provided at the lower part of the plastic coating area. The top of the suction pipe 16 is connected with a liquid distribution ring pipe 8. A filter 14 and a liquid pump 15 are provided on the suction pipe 16. The filter 14 is a Y-shaped filter.

[0028] A liquid adding pipe 17 is fixed on the plastic coating box 2 at the upper part of the plastic coating area. A liquid discharge pipe 13 is provided on the bottom side wall of the plastic coating box 2. The liquid pump 15 will extract the plastic coating liquid at the lower part of the plastic coating area, filter it through the filter 14, and then send it into the liquid distribution ring pipe 8 for uniform distribution, and then enter the plastic coating spray pipe 18, and spray it obliquely towards the fiberglass yarn from the nozzle, so as to recycle the plastic coating liquid.

[0029] A horizontal installation hole 11 is provided on the plastic coating box 2 at the middle outer side of the plastic coating area. A third guiding wheel 12 is provided outside the installation hole 11. During installation, the fiberglass yarn guided by the third guiding wheel 12 will pass through the installation hole 11 and enter the plastic coating area, and then be guided by the first guiding wheel 10.

[0030] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

Claims

1. A glass fiber yarn plastic coating device, comprising a plastic coating box (2), characterized in that: The plastic coating box (2) is provided with a partition plate 1 (5) and a partition plate 2 (9) along the vertical direction to divide it into a cooling zone, a drying zone and a plastic coating zone. The partition plate 1 (5) and the partition plate 2 (9) are provided with coaxial through holes in the middle. A yarn guide tube (21) coaxial with the through hole is provided in the drying zone. A heating coil (20) is spirally wound on the outside of the yarn guide tube (21). A liquid distribution ring tube (8) coaxial with the yarn guide tube (21) is fixed at the bottom of the partition plate 2 (9). A plurality of vertical plastic coating spray pipes (18) are arranged in a circular array at the bottom of the liquid distribution ring tube (8). A plurality of spray heads inclined toward the central axis of the liquid distribution ring tube (8) are provided on the inner wall of each plastic coating spray pipe (18) along the vertical direction. A guide wheel 1 (10) is provided below the plastic coating spray pipe (18) and in the cooling zone.

2. A glass fiber yarn plastic coating device according to claim 1, characterized in that: Two guide wheels (3) are alternately arranged on the left and right side walls of the cooling zone, a cover plate (1) is fixed on the top of the plastic coating box (2), a yarn outlet hole is arranged in the middle of the cover plate (1), and two guide wheels (3) are also arranged below the yarn outlet hole.

3. A glass fiber yarn plastic coating device according to claim 2, characterized in that: An air distribution hollow disk (23) is fixed in the middle of the top of the partition plate (5), a guide tube (6) inserted into the through hole on the partition plate (5) is fixed in the middle of the air distribution hollow disk (23), the top of the guide tube (6) passes through the air distribution hollow disk (23), the top of the air distribution hollow disk (23) is provided with an inclined cold air spray hole, the outer side of the air distribution hollow disk (23) is connected to a cooling air inlet pipe (22), and a cooling air outlet pipe (24) is provided on the upper outer side wall of the plastic coating box (2).

4. A glass fiber yarn plastic coating device according to claim 1, characterized in that: A heat-insulating layer (19) is provided on the side wall of the drying area, and fixing frames (7) are fixed at both ends of the yarn guide tube (21), and the fixing frames (7) are fixed on the plastic coating box (2).

5. A glass fiber yarn plastic coating device according to claim 1, characterized in that: A guide wheel (10) is rotatably mounted with a bracket, the bracket is fixed on a fixing plate (4), and the end of the fixing plate (4) is fixed on the plastic coating box (2).

6. A glass fiber yarn plastic coating device according to claim 1, characterized in that: A suction pipe (16) is provided at the bottom of the plastic coating area. The top of the suction pipe (16) is connected to the liquid distribution ring pipe (8). A filter (14) and a liquid pump (15) are provided on the suction pipe (16).

7. A glass fiber yarn plastic coating device according to claim 6, characterized in that: A liquid adding pipe (17) is fixed on the plastic coating box (2) at the upper part of the plastic coating area, and a liquid draining pipe (13) is provided on the bottom side wall of the plastic coating box (2).

8. A glass fiber yarn plastic coating device according to claim 1, characterized in that: A horizontal mounting hole (11) is provided on the plastic coating box (2) at the outer side of the middle part of the plastic coating area, and a guide wheel (12) is provided at the outer side of the mounting hole (11).

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