A system for impregnating glass fiber mats

Abstract

This application provides an impregnation system for glass fiber mat, including a tank frame, an impregnation tank group, a lifting platform, and a guide roller group. The impregnation tank group is set on the lifting platform and includes at least two horizontally spaced sub-tanks, with the lower parts of adjacent sub-tanks interconnected by a connecting pipe. A drip recovery plate is connected between the upper edges of adjacent sidewalls of adjacent sub-tanks to receive adhesive dripping from the glass fiber mat and guide the adhesive back to the sub-tanks. The guide roller group is mounted on the tank frame and includes impregnation guide rollers for pressing the glass fiber mat into the adhesive in each sub-tank, and transition rollers for lifting the glass fiber mat between adjacent sub-tanks. The impregnation tank group is provided with a replenishment port and a drain port. This system, by adopting a multi-sub-tank partitioned impregnation design, transforms a large tank into several small tanks, and selectively sets up sub-tanks only for impregnating the downward section of the glass fiber mat, significantly reducing the total volume of adhesive and minimizing waste during production downtime or adhesive replacement.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber mat production technology, specifically to an impregnation system for glass fiber mat. Background Technology

[0002] Impregnation is a crucial step in the production of fiberglass mat. Traditional equipment uses a single large impregnation tank filled with a large amount of adhesive. The fiberglass mat is guided by multiple rollers to pass through the tank in a wavy trajectory to complete the impregnation. However, this structure requires a continuous supply of adhesive. If production stops, operations are intermittent, or the adhesive exceeds its shelf life, the entire tank of adhesive becomes unusable, resulting in significant waste and high production costs. Furthermore, the need to replace large volumes of adhesive at once increases raw material costs and the burden of waste disposal. Utility Model Content

[0003] To address the technical problems existing in the background art, the present invention provides an impregnation system for glass fiber mat.

[0004] The technical solution of this utility model is as follows: An impregnation system for fiberglass mat includes a tank frame, an impregnation tank assembly, a lifting platform, and a guide roller assembly. The impregnation tank assembly, mounted on the lifting platform, comprises at least two horizontally spaced sub-tanks. The lower parts of adjacent sub-tanks are interconnected via a connecting pipe to ensure consistent adhesive level and uniform adhesive quality within each sub-tank. A drip recovery plate is connected between the upper edges of adjacent sidewalls of adjacent sub-tanks to collect adhesive dripping from the fiberglass mat and guide it back into the sub-tanks. The guide roller assembly, mounted on the tank frame, includes impregnation guide rollers for pressing the fiberglass mat into the adhesive in each sub-tank, and transition rollers for lifting the fiberglass mat between adjacent sub-tanks. The impregnation tank assembly is equipped with a replenishment port and a drain port for centralized control of adhesive replenishment and replacement.

[0005] Furthermore, the drip recovery plate has an inverted V-shaped structure, with its top edge extending perpendicular to the running direction of the glass fiber felt, and its two sides inclined towards the adjacent sub-slots. The surface has a hydrophobic coating or is polished to improve the drip recovery efficiency.

[0006] Furthermore, the impregnation guide roller has a cage-like structure, which helps the glass fiber mat to contact the adhesive on both sides when it moves around the impregnation guide roller.

[0007] Furthermore, the glass fiber mats located on both sides of the impregnation guide rollers move vertically, which facilitates the lifting and lowering coordination with the impregnation tank assembly, controls the depth of the glass fiber mat entering the sub-tank, and thus controls the impregnation time of the glass fiber mat.

[0008] Furthermore, the width of the sub-tank is greater than the diameter of the impregnation guide roller, but less than 1.5 times the diameter of the impregnation guide roller, in order to reduce the total amount of adhesive in the tank while ensuring the impregnation effect.

[0009] Furthermore, the transition roller is located directly above the drip recovery plate, which facilitates the initial smoothing of the adhesive layer after the fiber felt is removed from the adhesive and provides conditions for subsequent processing (such as pre-drying).

[0010] Furthermore, there is only one replenishment port and one drain port, which are respectively set on the sub-tanks at both ends of the impregnation tank group. The replenishment port is equipped with a filter device, and the drain port is connected to the replenishment port through a pipeline and the filter device, so as to realize the circulation and filtration of the adhesive in the impregnation tank group, which not only cleans the adhesive but also avoids the adhesive from settling.

[0011] Furthermore, at least one sub-tank is equipped with a liquid level sensor and / or adhesive status sensor to monitor adhesive parameters in real time and enable automatic liquid replenishment or alarm.

[0012] This utility model provides a glass fiber mat impregnation system that significantly reduces the total volume of adhesive liquid by adopting a multi-tank partitioned impregnation design, thereby reducing waste during production stoppages or adhesive changes. The system effectively recovers the carried-out adhesive liquid through the cooperation of a drip recovery plate and a transition roller, improving adhesive liquid utilization. Furthermore, by setting up a single replenishment port and drain port, and equipping it with filtration and sensing devices, the system achieves centralized management and intelligent control of the adhesive liquid, improving production efficiency and product quality. Attached Figure Description

[0013] In the attached diagram: Figure 1 This is a cross-sectional schematic diagram of the impregnation system.

[0014] The components represented by the various reference numerals in the diagram are: 1. Tank frame; 2. Impregnation tank assembly; 21. Sub-tank; 211. Liquid replenishment port; 212. Liquid drain port; 22. Connecting pipe; 23. Drip recovery plate; 3. Lifting platform; 4. Guide roller assembly; 41. Impregnation guide roller; 42. Transition roller; 43. Feed roller; 44. Discharge roller; 51. Three-way valve; 52. Circulation pump; 53. Filter device; 6. Fiberglass mat. Detailed Implementation

[0015] like Figure 1 As shown, this utility model embodiment provides an impregnation system for glass fiber mat 6, including a tank frame 1, an impregnation tank group 2, a lifting platform 3, and a guide roller group 4.

[0016] The impregnation tank group 2 is set on the lifting platform 3, and includes at least two horizontally spaced sub-tanks 21. The lower parts of adjacent sub-tanks 21 are connected to each other through a connecting pipe 22. A drip recovery plate 23 is connected between the upper edges of the adjacent side walls of adjacent sub-tanks 21. The drip recovery plate 23 is used to receive the adhesive dripping from the glass fiber mat 6 and guide the adhesive back to the sub-tank 21. The guide roller group 4 is installed on the tank frame 1. It includes an impregnation guide roller 41 for pressing the glass fiber mat 6 into the adhesive in each sub-tank 21, and a transition roller 42 for lifting the glass fiber mat 6 between adjacent sub-tanks 21. The impregnation tank group 2 is provided with a liquid replenishment port 211 and a liquid discharge port 212.

[0017] This application adopts a multi-tank 21 partitioned impregnation design, which transforms the large tank into several small tanks. The sub-tanks 21 are set up specifically for impregnation of the downward section of the glass fiber mat 6, which significantly reduces the total volume of adhesive and reduces waste when production is stopped or adhesive is changed.

[0018] For details, see Figure 1 The trough frame 1 provides the main support structure for the system. It is welded from steel and has sufficient rigidity and stability to support the impregnation tank assembly 2, the guide roller assembly 4, and the glass fiber mat 6 in operation. The impregnation tank assembly 2 is installed inside the trough frame 1 via a lifting platform 3, which can move vertically as a whole, thereby flexibly adjusting the immersion depth of the glass fiber mat 6 in the adhesive.

[0019] In this embodiment, both the impregnation tank assembly 2 and the lifting platform 3 are slidably connected to the tank frame 1. Guided and constrained by the tank frame 1, the stability of the impregnation tank assembly 2 and the lifting platform 3 during lifting is improved. However, this application does not limit this; in some other embodiments, the impregnation tank assembly 2 and the lifting platform 3 may not be connected to the tank frame 1.

[0020] The impregnation tank assembly 2 is mounted on the lifting platform 3 and moves up and down driven by the lifting platform 3. The lifting platform 3 is equipped with a lifting drive, which can be, but is not limited to, a hydraulic cylinder, or a combination of a motor and a lead screw, to control the smooth lifting and lowering of the impregnation tank assembly 2. The lifting platform 3 can adjust the height of the impregnation tank assembly 2 according to process requirements, thereby adjusting the impregnation depth of the glass fiber mat 6.

[0021] The impregnation tank assembly 2 includes at least two horizontally spaced sub-tanks 21, each made of stainless steel, offering excellent corrosion resistance and a smooth surface. All sub-tanks 21 are located on the lifting platform 3, preferably arranged in a straight line. The lower parts of adjacent sub-tanks 21 are interconnected via connecting pipes 22. Based on the principle of communicating vessels, this ensures that the adhesive level in each sub-tank 21 remains consistent, while simultaneously promoting slow flow of the adhesive between tanks, avoiding localized compositional differences, and guaranteeing uniform overall adhesive quality. Uniform adhesive quality, as described here, means that the parameters of the adhesive in each sub-tank 21 are identical, such as concentration, composition, viscosity, pH value, etc.

[0022] The connecting pipe 22 is preferably positioned at an interval between adjacent sub-tanks 21, below the drip recovery plate 23, and flush with the lowest point of the sub-tank 21. This avoids occupying installation space and increasing the overall system size. Simultaneously, it ensures that all adhesive in each sub-tank 21 is drained during waste disposal. The connecting pipe 22 is a horizontal pipe, and its diameter is determined based on the adhesive flow rate and the volume of the sub-tank 21 to ensure smooth adhesive flow between adjacent sub-tanks 21.

[0023] The impregnation tank assembly 2 may also be equipped with a replenishment port 211 and a drain port 212. Preferably, only one replenishment port 211 and one drain port 212 are provided, located on the sub-tanks 21 at both ends of the assembly, to facilitate centralized replenishment and replacement of the adhesive and simplify the operation process. The drain port 212 is located close to the lowest position of its sub-tank 21, while the replenishment port 211 is located on the upper part of the side wall of its sub-tank 21 and is higher than the adhesive liquid level in the sub-tank 21.

[0024] Furthermore, a three-way valve 51 is installed on the pipeline connecting the replenishment port 211 and the drain port 212. The two three-way valves 51 are connected by a pipeline, and a circulation pump 52 is installed on this pipeline. The two three-way valves 51 can be opened and closed manually or automatically by a controller. By controlling the two three-way valves 51, waste liquid can be discharged, new liquid can be added, and the adhesive liquid in all sub-tanks 21 can be circulated, avoiding uneven concentration or sedimentation of the adhesive liquid due to prolonged stasis. At the same time, it is beneficial to promote the uniformity of adhesive liquid quality among the sub-tanks 21.

[0025] In addition, a filter device 53 is provided at the inlet of the replenishment port 211 to remove impurities during replenishment or glue circulation, and to keep the glue in each sub-tank 21 clean. The filter device 53 can be a bag filter or a cartridge filter.

[0026] In addition, a liquid level sensor and / or adhesive state sensor (not shown in the figure) are installed in at least one sub-tank 21 to monitor the adhesive level and physicochemical parameters, such as viscosity or solid content, in real time, and to trigger automatic liquid replenishment or alarm prompts when abnormalities occur, thereby improving the system automation level and process stability.

[0027] It should be noted that the automatic control of fluid replenishment or alarm prompting function is an existing design, and its structural composition is not the core improvement of this application. Therefore, it will not be described in detail here. Those skilled in the art should be able to realize automatic control of fluid replenishment and alarm prompting based on relevant existing technologies and in combination with the technical solution of this application.

[0028] The guide roller assembly 4 is mounted on the trough frame 1 and includes multiple impregnation guide rollers 41 and transition rollers 42. The number of impregnation guide rollers 41 is equal to the number of sub-troughs 21, and they are inserted into each sub-trough 21 by suspension to press the glass fiber mat 6 into the adhesive, achieving full impregnation. The impregnation guide rollers 41 adopt a cage-like structure, and their surface is composed of multiple axially arranged roller strips with gaps between them. This structure ensures that both sides of the glass fiber mat 6 can contact the adhesive when moving around the impregnation guide rollers 41, avoiding the formation of impregnation dead zones and improving impregnation uniformity.

[0029] The width of the sub-tank 21 is designed to be greater than the diameter of the impregnation guide roller 41, but less than 1.5 times the diameter of the impregnation guide roller 41. This ensures that the glass fiber mat 6 is fully impregnated while minimizing the total amount of adhesive liquid contained in the sub-tank 21, thereby reducing costs and the difficulty of liquid replacement.

[0030] The transition roller 42 is positioned above the adjacent sub-grooves 21, directly above the drip recovery plate 23. Its function is to lift the glass fiber felt 6 after it is drawn out of one sub-groove 21 and before it enters the next sub-groove 21, and to maintain a certain tension.

[0031] In this embodiment, the transition roller 42 is disposed outside the adhesive solution. Its function is to provide a temporary adhesive redistribution zone for the fully impregnated glass fiber mat 6, which is drawn out from the impregnation guide roller 41. Utilizing the effects of gravity and surface tension, the adhesive layer adhering to the surface of the glass fiber mat 6 can be made smoother and more uniform, while promoting the initial surface drying of the adhesive layer. This is beneficial for improving the adhesive application effect in the subsequent sub-tank 21 and the final adhesive adhesion.

[0032] The transition roller 42 is located outside the adhesive liquid and is a prior art. Its specific principle and function can be found in the first winding roller structure in patent CN210635911U.

[0033] It should be noted that, to further enhance the adhesive layer coagulation effect, this system can also be selectively configured with an independent drying mechanism (such as the drying box disclosed in CN210635911U). Similarly, to improve the smoothness and uniformity of the adhesive on the surface of the glass fiber mat 6, this system can also be selectively configured with several pairs of extrusion rollers (such as the traction rollers and pressure rollers disclosed in CN210635911U). The drying mechanism and extrusion rollers are not the core innovation of this application, therefore they are not shown in the accompanying drawings to highlight the design points; however, as optional configurations for process extension, they still fall within the scope of this system.

[0034] In addition, in this embodiment, by designing the diameter and horizontal distance of the impregnation guide roller 41 and the transition roller 42, the glass fiber mat 6 located on both sides of the impregnation guide roller 41 is in a vertically moving state. This arrangement facilitates coordination with the lifting and lowering movement of the impregnation tank group 2, so that the width of the sub-tank 21 can be designed to be as small as possible, and the sub-tank 21 will not collide with the glass fiber mat 6 when it is lifted and lowered. In this way, under the same impregnation effect, the amount of adhesive in the sub-tank 21 is reduced, reducing waste in the later stage. The impregnation time can also be precisely controlled by adjusting the immersion depth.

[0035] In addition, a feed roller 43 and a discharge roller 44 are respectively provided at the positions where the glass fiber mat 6 enters the impregnation tank group 2 and exits the impregnation tank group 2, such as... Figure 1 As shown.

[0036] To avoid adhesive waste and cleanup issues, drip recovery plates 23 are connected between the upper edges of adjacent sidewalls of adjacent sub-tanks 21. The drip recovery plates 23 have an inverted V-shaped structure, with their top edge extending perpendicular to the running direction of the fiberglass mat 6, and their two side surfaces inclined towards the two adjacent sub-tanks 21. The surface of the drip recovery plates 23, or at least the upper surface, is polished or coated with a hydrophobic coating, effectively reducing adhesive adhesion and allowing adhesive dripping from the fiberglass mat 6 to quickly slide off the plate surface and flow back into the corresponding sub-tank 21, thereby reducing adhesive waste and environmental pollution.

Claims

1. An impregnation system for glass fiber mat, characterized in that, It includes a tank frame (1), an impregnation tank assembly (2), a lifting platform (3), and a guide roller assembly (4); The impregnation tank group (2) is set on the lifting platform (3), which includes at least two horizontally spaced sub-tanks (21), and the lower parts of adjacent sub-tanks (21) are connected to each other through a connecting pipe (22); A drip recovery plate (23) is connected between the upper edges of the adjacent sidewalls of the adjacent sub-tank (21). The drip recovery plate (23) is used to receive the adhesive dripping from the glass fiber mat (6) and guide the adhesive back to the sub-tank (21). The guide roller assembly (4) is mounted on the trough frame (1) and includes an impregnated guide roller (41) for pressing the glass fiber mat (6) into the adhesive in each sub-trough (21) and a transition roller (42) for lifting the glass fiber mat (6) between adjacent sub-troughs (21). The impregnation tank assembly (2) is provided with a liquid replenishment port (211) and a liquid drain port (212).

2. The impregnation system for glass fiber mat as described in claim 1, characterized in that, The drip recovery plate (23) has an inverted V-shaped structure, with its top edge extending perpendicular to the running direction of the glass fiber felt (6), and its two sides inclined toward the adjacent sub-slots (21).

3. The impregnation system for glass fiber mat as described in claim 2, characterized in that, The surface of the droplet recovery plate (23) has a hydrophobic coating or is polished.

4. The impregnation system for glass fiber mat as described in claim 1, characterized in that, The impregnation guide roller (41) has a cage-like structure.

5. The impregnation system for glass fiber mat as described in claim 4, characterized in that, The glass fiber mat (6) located on both sides of the impregnation guide roller (41) moves vertically.

6. The impregnation system for glass fiber mat as described in claim 5, characterized in that, The width of the sub-groove (21) is greater than the diameter of the immersion guide roller (41) and less than 1.5 times the diameter of the immersion guide roller (41).

7. The impregnation system for glass fiber mat as described in claim 1, characterized in that, The transition roller (42) is located directly above the drip recovery plate (23).

8. The impregnation system for glass fiber mat as described in claim 1, characterized in that, There is only one liquid replenishment port (211) and one liquid discharge port (212), which are respectively located on the sub-tanks (21) at both ends of the impregnation tank group (2).

9. The impregnation system for glass fiber mat as described in claim 8, characterized in that, The replenishment port (211) is equipped with a filter device (53), and the drain port (212) is connected to the replenishment port (211) through a pipeline and the filter device (53).

10. The impregnation system for glass fiber mat as described in any one of claims 1-9, characterized in that, At least one of the sub-tanks (21) is provided with a liquid level sensor and / or a liquid state sensor.

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