A glass fiber surface oil film coating mechanism

Abstract

The utility model provides a kind of glass fiber surface oil film coating mechanism, it is related to oil film coating technical field, including beam splitter frame, the inside of beam splitter frame is provided with guide roller, the inside fixed mounting of guide roller has tension block for tension detection.The utility model has the advantages that: setting oiling roller and auxiliary oil roller respectively in the upper and lower regions of beam splitter frame respectively oil glass fiber before and after beam splitting, form segmented oiling structure, can all-around glass fiber is coated with oil, and setting adjustable guide roller between oiling roller and auxiliary oil roller guides the glass fiber of beam splitting, it is convenient to transition guide for the glass fiber wire inside different oiling section, while setting tension block in the inside of guide roller detects the tension of the glass fiber wire of traction, it is convenient to monitor the situation of tension in real time, optimizes the dynamic transition and tension control of glass fiber wire between different oiling sections.

Description

Technical Field

[0001] This utility model relates to the field of oil film coating technology, and in particular to an oil film coating mechanism for glass fiber surfaces. Background Technology

[0002] In the field of glass fiber product manufacturing, the glass fiber surface oil film coating mechanism is a key piece of equipment that uniformly coats the surface of glass fiber monofilaments or bundles with a wetting agent (the core component of the oil film). By controlling the thickness of the oil film (usually 0.1-0.5μm) and the uniformity of coverage, it forms a protective layer on the glass fiber surface, reducing monofilament wear and breakage during subsequent processing (such as bundling and weaving), while improving the interfacial bonding force between glass fiber and resin. It is a core pre-processing equipment to ensure the mechanical properties (tensile strength deviation ≤3%) of glass fiber products (such as glass fiber cloth and composite materials), and is widely used in the production of electronic substrates, wind turbine blades, aerospace composite materials and other scenarios.

[0003] However, existing oil film coating mechanisms are not convenient for coordinating the tension of glass fiber filaments during the coating process, making them rather inconvenient to use. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a glass fiber surface oil film coating mechanism to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a glass fiber surface oil film coating mechanism, including a support frame, a spool for unwinding glass fibers fixedly installed at the top of the frame, an oiling roller for applying oil to the glass fibers arranged below the spool, a splitting plate frame for splitting the glass fibers arranged below the oiling roller, a guide wheel for traction and guidance of the split glass fibers arranged inside the splitting plate frame, a tension block for tension detection fixedly installed inside the guide wheel, an auxiliary oiling roller for applying oil to the split glass fibers arranged below the guide wheel, a guide wheel for guiding the split glass fibers arranged below the auxiliary oiling roller, and a PLC control unit for automatic control of the tension block.

[0006] Preferably, in any of the above embodiments, the PLC control unit is located inside the frame, and one end of the oiling roller is provided with a drive motor that drives it and is signal-connected to the PLC control unit. The oiling roller is rotatably connected to the inside of the frame.

[0007] The above technical solution is adopted as follows: The PLC control unit (with built-in STM32 series MCU) is fixed inside the frame and is connected to the drive motor (servo motor) at one end of the coating roller through analog signals to control the output torque of the motor. The coating roller (made of stainless steel with chrome plating and an oil storage groove on the roller surface) is rotatably connected to the inside of the frame through a deep groove ball bearing. During operation, the PLC adjusts the motor speed according to the linear speed of the glass fiber (feedback from the guide wheel) to match the linear speed of the coating roller with the linear speed of the fiber. The wetting agent (oil film raw material) in the oil storage groove is evenly transferred to the fiber surface as the roller rotates, realizing the initial coating and avoiding excessive coating (liquid accumulation) or insufficient coating (missed coating) due to speed mismatch.

[0008] Preferably, as described in any of the above embodiments, the fiber splitting frame includes a fiber splitting frame for support and fixation and a fiber splitting plate for splitting glass fibers. The fiber splitting frame is fixedly installed inside the frame, and the fiber splitting plate is fixedly installed at the top of the fiber splitting frame.

[0009] The above technical solution is adopted: the beam splitter (welded aluminum alloy profile) is fixed inside the frame with bolts and is located directly below the oiling roller to provide stable support for the beam splitter plate. The beam splitter plate (acrylic material) is fixed to the top of the beam splitter with glue. The plate has beam splitting holes (the hole positions correspond to the oil storage groove of the oiling roller) to separate the glass fiber bundles after preliminary coating into multiple fine bundles. The precise positioning of the beam splitting holes ensures that each fine bundle enters the subsequent process independently, avoiding entanglement between bundles. At the same time, the height design of the beam splitter ensures that the fiber bundles fall vertically, providing a stable posture for subsequent secondary coating.

[0010] Preferably, in any of the above embodiments, the guide wheel includes a guide support bracket for support, a pneumatic telescopic rod connected to the PLC control unit for signal connection, and a guide wheel seat for traction of glass fiber. The guide support bracket is fixedly installed inside the bundle splitter, and the pneumatic telescopic rod is fixedly installed inside the guide support bracket. One end of the pneumatic telescopic rod is fixedly installed with the guide wheel seat.

[0011] The above technical solution is adopted as follows: the guide wire support (stamped steel plate) is fixed inside the bundle splitting frame with screws. The pneumatic telescopic rod inside is connected to the PLC control unit through pulse signals. The output end is connected to the guide wheel seat (nylon material with built-in bearing) through the flange. The guide wheel (polyurethane material) inside the guide wheel seat is in contact with the bundled fiber bundle. The position of the wheel seat is adjusted by the extension and retraction of the pneumatic telescopic rod, thereby changing the traction angle of the fiber bundle. When the fiber tension is abnormal, the PLC drives the telescopic rod to extend and retract. When the tension is too high, the telescopic rod extends to increase the traction angle. When the tension is too low, the telescopic rod retracts to decrease the traction angle, thereby realizing dynamic tension adjustment and ensuring that the fiber bundle does not loosen or break during the coating process.

[0012] Preferably, in any of the above embodiments, the tension block includes a pressure sensor connected to a PLC control unit and a pressure-bearing extrusion block. The pressure sensor is fixedly installed inside the guide wheel seat, and the detection end of the pressure sensor is fixedly installed with the extrusion block located inside the guide wheel seat.

[0013] The above technical solution involves a pressure sensor (strain gauge type) fixed inside the guide wheel seat via a slot. The detection end is rigidly connected to the extrusion block (made of nitrile rubber). When the glass fiber bundle passes around the guide wheel, the fiber tension is transmitted to the extrusion block through the wheel. After being compressed, the extrusion block transmits the force to the sensor. The sensor converts the mechanical signal into an electrical signal and transmits it to the PLC control unit. The PLC collects tension data in real time and compares it with a preset threshold (set according to fiber specifications). If the tension exceeds the threshold, the pneumatic telescopic rod is immediately driven to adjust the position of the guide wheel seat until the tension returns to the threshold range. If the tension remains abnormal, an alarm is triggered and the equipment is paused to avoid fiber damage, forming a closed-loop tension control of "detection-feedback-adjustment".

[0014] Preferably, in any of the above embodiments, the auxiliary oil roller is rotatably connected to the inside of the guide wheel seat, and the auxiliary oil roller is located below the tension block.

[0015] The above technical solution is adopted: the auxiliary oil roller (made of stainless steel with sandblasted surface) is rotatably connected to the inside of the guide wheel seat through a miniature bearing and is located below the tension block. The surface of the roller is impregnated with a wetting agent (oil film raw material). When the split fiber bundle passes around the auxiliary oil roller, the roller rotates passively with the fiber bundle. The adsorption characteristics of the sandblasted surface are used to evenly coat the wetting agent on the areas not fully covered by the fiber bundle (such as the gaps between monofilaments), thus achieving secondary coating. The integrated design of the auxiliary oil roller and the guide wheel seat ensures that its position is adjusted synchronously with the wheel seat and is always in close contact with the fiber bundle, avoiding missed coating due to positional deviation.

[0016] Preferably, in any of the above embodiments, the guide wheel includes a guide shaft for support and a guide wheel for guiding the glass fiber. The guide shaft is fixedly installed inside the beam splitter, and a guide wheel located below the auxiliary oil roller is rotatably connected to the surface of the guide shaft.

[0017] The above technical solution is adopted: the guide shaft (45 steel heat-treated and chrome-plated) is fixed inside the bundle splitter by interference fit and located below the auxiliary oil roller. The guide wheel (nylon material) rotatably connected to the shaft surface is in contact with the fiber bundle after secondary coating. The guide wheel rotates passively with the fiber bundle and restricts the lateral displacement of the fiber bundle by the groove wall, ensuring that the fiber bundle enters the subsequent winding process in a straight line. The fixed position of the guide shaft works in conjunction with the guide wheel and the auxiliary oil roller to keep the fiber bundle under constant tension throughout the coating process. At the same time, the low friction coefficient of the guide wheel reduces the wear on the fiber surface and ensures the integrity of the oil film.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. Oiling rollers and auxiliary oiling rollers are respectively installed in the upper and lower areas of the splitting plate frame to apply oil to the glass fibers before and after splitting, forming a segmented oiling structure that can coat the glass fibers from all directions. An adjustable guide roller is set between the oiling roller and the auxiliary oiling roller to guide the split glass fibers, which facilitates the transition and guidance of glass fiber filaments in different oiling sections. At the same time, a tension block is set inside the guide roller to detect the tension of the pulled glass fiber filaments, which facilitates real-time monitoring of the tension and optimizes the dynamic transition and tension control of glass fiber filaments between different oiling sections.

[0019] 2. The guide roller is designed to be telescopic and adjustable. The position of the guide roller can be controlled by monitoring the tension, and the glass fiber at each position can be individually controlled. This allows for precise control of the glass fiber tension at each position, improving the stability of the glass fiber coating.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model; Figure 2 This is a partial structural schematic diagram according to an embodiment of the present utility model; Figure 3 This is a partial side sectional view of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the beam guide wheel according to an embodiment of the present utility model; Figure 5 This is a cross-sectional structural diagram of the guide wheel according to an embodiment of the present utility model; Among them: 1-frame, 2-spool, 3-oiling roller, 4-bundling plate frame, 41-bundling frame, 42-bundling plate, 5-guide wheel, 51-guide bracket, 52-pneumatic telescopic rod, 53-guide wheel seat, 6-auxiliary oil roller, 7-guide wheel, 71-guide shaft, 72-guide wheel, 8-tension block, 81-pressure sensor, 82-extrusion block. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0023] like Figure 1-5 As shown, an embodiment of the present invention provides a glass fiber surface oil film coating mechanism, comprising a frame 1 for support and fixation, a roll 2 for unwinding glass fiber fixedly installed at the top of the frame 1, an oiling roller 3 for applying oil to the glass fiber below the roll 2, a splitting plate frame 4 for splitting glass fiber below the oiling roller 3, a guide wheel 5 for traction and guidance of the split glass fiber inside the splitting plate frame 4, a tension block 8 for tension detection fixedly installed inside the guide wheel 5, an auxiliary oil roller 6 for applying oil to the split glass fiber below the guide wheel 5, a guide wheel 7 for guiding the split glass fiber below the auxiliary oil roller 6, and a PLC control unit for automatic control connected to the tension block 8.

[0024] Preferably, in any of the above schemes, the PLC control unit is located inside the frame 1, and one end of the oiling roller 3 is provided with a drive motor that drives it and is connected to the PLC control unit via signal. The oiling roller 3 is rotatably connected to the inside of the frame 1.

[0025] The above technical solution is adopted: The PLC control unit (with built-in STM32 series MCU) is fixed inside the frame 1 and is connected to the drive motor (servo motor) at one end of the oiling roller 3 through analog signals to control the output torque of the motor. The oiling roller 3 (made of stainless steel with chrome plating and an oil storage groove on the roller surface) is rotatably connected to the inside of the frame 1 through a deep groove ball bearing. During operation, the PLC adjusts the motor speed according to the linear speed of the glass fiber (feedback from the guide wheel 5) so that the linear speed of the oiling roller matches the linear speed of the fiber. The wetting agent (oil film raw material) in the oil storage groove is evenly transferred to the fiber surface as the roller rotates, realizing the initial coating and avoiding excessive coating (liquid accumulation) or insufficient coating (missed coating) due to speed mismatch.

[0026] Preferably, in any of the above embodiments, the fiber splitting frame 4 includes a fiber splitting frame 41 for support and fixation and a fiber splitting plate 42 for splitting glass fibers. The fiber splitting frame 41 is fixedly installed inside the frame 1, and the fiber splitting plate 42 is fixedly installed on the top of the fiber splitting frame 41.

[0027] The above technical solution is adopted: the beam splitter 41 (welded aluminum alloy profile) is fixed inside the frame 1 by bolts and is located directly below the oiling roller 3, providing stable support for the beam splitter 42. The beam splitter 42 (acrylic material) is fixed to the top of the beam splitter with glue. The plate has beam splitting holes (the hole positions correspond to the oil storage groove of the oiling roller) to separate the glass fiber bundles after preliminary coating into multiple fine bundles. The precise positioning of the beam splitting holes ensures that each fine bundle enters the subsequent process independently, avoiding entanglement between bundles. At the same time, the height design of the beam splitter keeps the fiber bundles falling vertically, providing a stable posture for subsequent secondary coating.

[0028] Preferably, in any of the above embodiments, the guide wheel 5 includes a guide support 51 for support, a pneumatic telescopic rod 52 connected to the PLC control unit, and a guide wheel seat 53 for traction of the glass fiber. The guide support 51 is fixedly installed inside the bundle splitter 41, and the pneumatic telescopic rod 52 is fixedly installed inside the guide support 51. The guide wheel seat 53 is fixedly installed at one end of the pneumatic telescopic rod 52.

[0029] The above technical solution is adopted: the guide wire support 51 (stamped steel plate) is fixed inside the bundle splitter 41 with screws. The pneumatic telescopic rod 52 inside is connected to the PLC control unit through pulse signals. The output end is connected to the guide wheel seat 53 (nylon material with built-in bearing) through the flange. The guide wheel (polyurethane material) inside the guide wheel seat is in contact with the bundled fiber bundle. The position of the wheel seat is adjusted by the extension and retraction of the pneumatic telescopic rod, thereby changing the traction angle of the fiber bundle. When the fiber tension is abnormal, the PLC drives the telescopic rod to extend and retract. When the tension is too large, the telescopic rod extends to increase the traction angle. When the tension is too small, the telescopic rod retracts to reduce the traction angle, thereby realizing dynamic tension adjustment and ensuring that the fiber bundle does not loosen or break during the coating process.

[0030] Preferably, in any of the above solutions, the tension block 8 includes a pressure sensor 81 connected to the PLC control unit and a pressure-bearing extrusion block 82. The pressure sensor 81 is fixedly installed inside the guide wheel seat 53, and the extrusion block 82 located inside the guide wheel seat 53 is fixedly installed at the detection end of the pressure sensor 81.

[0031] The above technical solution is adopted as follows: the pressure sensor 81 (strain gauge type) is fixed inside the guide wheel seat 53 through a slot, and the detection end is rigidly connected to the extrusion block 82 (nitrile rubber material). When the glass fiber bundle passes around the guide wheel, the fiber tension is transmitted to the extrusion block through the wheel body. After the extrusion block is compressed, it transmits the force to the sensor. The sensor converts the mechanical signal into an electrical signal and transmits it to the PLC control unit. The PLC collects the tension data in real time and compares it with the preset threshold (set according to the fiber specification). If the tension exceeds the threshold, the pneumatic telescopic rod 52 is immediately driven to adjust the position of the guide wheel seat until the tension returns to the threshold range. If the tension continues to be abnormal, an alarm is triggered and the equipment is stopped to avoid fiber damage, forming a tension closed-loop control of "detection-feedback-adjustment".

[0032] Preferably, in any of the above schemes, the auxiliary oil roller 6 is rotatably connected to the inside of the guide wheel seat 53, and the auxiliary oil roller 6 is located below the tension block 8.

[0033] The above technical solution is adopted: the auxiliary oil roller 6 (made of stainless steel with sandblasted surface) is rotatably connected to the inside of the guide wheel seat 53 through a miniature bearing, located below the tension block 8. The surface of the roller is impregnated with a wetting agent (oil film raw material). When the split fiber bundle passes around the auxiliary oil roller, the roller rotates passively with the fiber bundle. The adsorption characteristics of the sandblasted surface are used to evenly coat the wetting agent on the areas not fully covered by the fiber bundle (such as the gap between monofilaments), realizing secondary coating. The integrated design of the auxiliary oil roller and the guide wheel seat ensures that its position is adjusted synchronously with the wheel seat and is always in close contact with the fiber bundle, avoiding the secondary coating omission due to positional deviation.

[0034] Preferably, in any of the above embodiments, the guide wheel 7 includes a guide shaft 71 for support and a guide wheel 72 for guiding the glass fiber. The guide shaft 71 is fixedly installed inside the beam splitter 41, and the guide wheel 72 located below the auxiliary oil roller 6 is rotatably connected to the surface of the guide shaft 71.

[0035] The above technical solution is adopted: the guide shaft 71 (45 steel heat treatment, chrome plated) is fixed inside the bundle splitter 41 by interference fit, located below the auxiliary oil roller 6. The guide wheel 72 (nylon material) rotatably connected to the shaft surface is in contact with the fiber bundle after secondary coating. The guide wheel rotates passively with the fiber bundle and restricts the lateral displacement of the fiber bundle by the guide of the groove wall, ensuring that the fiber bundle enters the subsequent winding process in a straight line. The fixed position of the guide shaft works in conjunction with the guide wheel and the auxiliary oil roller to keep the fiber bundle under constant tension throughout the coating process. At the same time, the low friction coefficient of the guide wheel reduces the wear of the fiber surface and ensures the integrity of the oil film.

[0036] The working principle of the glass fiber surface oil film coating mechanism of this utility model is as follows: The spool 2 at the top of the frame 1 releases the glass fiber bundle, which falls onto the oiling roller 3 below. The PLC control unit drives the drive motor at one end of the oiling roller, causing it to rotate. The oil reservoir on its surface evenly transfers the wetting agent to the surface of the fiber bundle, completing the initial coating. After the initial coating, the fiber bundle continues to fall onto the splitting plate frame 4. The splitting plate 42, supported by the splitting frame 41, separates the fiber bundle into multiple fine bundles through splitting holes to avoid entanglement between bundles. The fine bundles enter the guide wheel seat 53 of the guide wheel 5 inside the splitting frame. The pneumatic telescopic rod 52 on the guide wheel support 51 adjusts the position of the guide wheel seat under the control of the PLC, changing the traction angle of the fine bundles to adjust the tension. Inside the guide wheel seat, the tension block 82 of the tension pressure block 8 is squeezed by the tension of the fine bundle. The pressure sensor 81 transmits the signal to the PLC. The PLC adjusts the pneumatic telescopic rod in real time according to the tension data to ensure the tension is stable. After being guided by the guide wheel, the fine bundle enters the auxiliary oil roller 6 inside the guide wheel seat. The auxiliary oil roller rotates passively with the fine bundle, coating the wetting agent on the area not covered by the fine bundle to achieve secondary coating. Finally, the fine bundle after secondary coating bypasses the guide wheel 72 supported by the guide shaft 71 on the bundle splitter. The guide wheel guides the fine bundle to enter the subsequent process in a straight line. All structures work together to complete the complete oil film coating process from unwinding, preliminary coating, bundle splitting, tension adjustment, secondary coating to guidance.

[0037] Compared with the prior art, the present invention has the following advantages: 1. Oiling rollers 3 and auxiliary oiling rollers 6 are respectively set in the upper and lower areas of the splitting plate frame 4 to apply oil to the glass fibers before and after splitting, forming a segmented oiling structure that can coat the glass fibers from all directions. An adjustable guide roller 5 is set between the oiling roller 3 and the auxiliary oiling roller 6 to guide the split glass fibers, which facilitates the transition and guidance of glass fiber filaments in different oiling sections. At the same time, a tension block 8 is set inside the guide roller 5 to detect the tension of the pulled glass fiber filaments, which facilitates real-time monitoring of the tension and optimizes the dynamic transition and tension control of glass fiber filaments between different oiling sections.

[0038] 2. The guide wheel 5 is designed to be telescopically adjustable. The position of the guide wheel 5 can be controlled by monitoring the tension, and the glass fiber at each position can be individually controlled. This allows for precise control of the glass fiber tension at each position, improving the stability of the glass fiber coating.

Claims

1. A glass fiber surface oil film coating mechanism, comprising a frame (1) for support and fixation, wherein a roll (2) for unwinding glass fiber is fixedly installed at the top end of the frame (1), characterized in that: Below the spool (2) is an oiling roller (3) for applying oil to the glass fiber. Below the oiling roller (3) is a splitting plate frame (4) for splitting the glass fiber. Inside the splitting plate frame (4) is a guide wheel (5) for guiding the split glass fiber. Inside the guide wheel (5) is a tension block (8) for tension detection. Below the guide wheel (5) is an auxiliary oiling roller (6) for applying oil to the split glass fiber. Below the auxiliary oiling roller (6) is a guide wheel (7) for guiding the split glass fiber. The tension block (8) is connected to a PLC control unit for automated control.

2. The glass fiber surface oil film coating mechanism as described in claim 1, characterized in that: The PLC control unit is located inside the frame (1). One end of the oiling roller (3) is equipped with a drive motor that drives it and is connected to the PLC control unit. The oiling roller (3) is rotatably connected inside the frame (1).

3. The glass fiber surface oil film coating mechanism as described in claim 2, characterized in that: The fiber splitting frame (4) includes a fiber splitting frame (41) for support and fixation and a fiber splitting plate (42) for splitting glass fibers. The fiber splitting frame (41) is fixedly installed inside the frame (1), and the fiber splitting plate (42) is fixedly installed at the top of the fiber splitting frame (41).

4. The glass fiber surface oil film coating mechanism as described in claim 3, characterized in that: The guide wheel (5) includes a guide support (51) for support, a pneumatic telescopic rod (52) connected to the PLC control unit, and a guide wheel seat (53) for traction of glass fiber. The guide support (51) is fixedly installed inside the bundle splitter (41). The pneumatic telescopic rod (52) is fixedly installed inside the guide support (51), and the guide wheel seat (53) is fixedly installed at one end of the pneumatic telescopic rod (52).

5. The glass fiber surface oil film coating mechanism as described in claim 4, characterized in that: The tension block (8) includes a pressure sensor (81) connected to the PLC control unit and a pressure-bearing extrusion block (82). The pressure sensor (81) is fixedly installed inside the guide wheel seat (53), and the extrusion block (82) located inside the guide wheel seat (53) is fixedly installed at the detection end of the pressure sensor (81).

6. The glass fiber surface oil film coating mechanism as described in claim 5, characterized in that: The auxiliary oil roller (6) is rotatably connected to the inside of the guide wheel seat (53), and the auxiliary oil roller (6) is located below the tension block (8).

7. The glass fiber surface oil film coating mechanism as described in claim 6, characterized in that: The guide wheel (7) includes a guide shaft (71) for support and a guide wheel (72) for guiding glass fibers. The guide shaft (71) is fixedly installed inside the splitting frame (41), and the surface of the guide shaft (71) is rotatably connected to the guide wheel (72) located below the auxiliary oil roller (6).

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