Glass fabric dipping device

Abstract

The utility model belongs to the technical field of glass fiber production, and discloses a glass fabric dipping device, which is used for glue solution with higher viscosity and comprises glass fabric dragged and conveyed by a winding and unwinding mechanism, the glass fabric is firstly horizontally conveyed and then is directly and obliquely conveyed downwards, and a glue spraying mechanism and a glue scraping mechanism are sequentially arranged at the horizontal position of the glass fabric in a crossing manner. A driving winding roller is arranged at the lower end of the inclined position of the glue spraying mechanism, the glue spraying mechanism is used for evenly spraying glue in the width direction of the top face of the glass fabric, and the glue scraping mechanism is used for conducting scraping operation on the top face of the glass fabric subjected to glue spraying to different degrees, so that the glue is smeared on the top face of the glass fabric more evenly. The winding and unwinding mechanism is used for unwinding, winding and conveying the glass fabric and enabling the bottom surface of the glass fabric to be adhered with adhesive liquid from the top surface of the glass fabric at the winding position; and a recycling mechanism is arranged under the glass fabric and is used for receiving and recycling the missing glue solution.

Description

Technical Field

[0001] The utility model belongs to the technical field of fiberglass production for pipeline repair, and particularly relates to a fiberglass cloth impregnating device. Background Art

[0002] Fiberglass cloth is a fabric woven from glass fibers. In the prior art, the fiberglass cloth can be completely impregnated by means of a glue tank to achieve one-time double-sided dipping. Usually, it is conveyed by a driving roller shaft and enters a glue tank filled with resin glue. After the fiberglass cloth with the surface evenly covered with glue is dried in an oven, a semi-cured sheet is formed. However, when the fiberglass cloth is completely immersed in the glue tank for dipping, it is difficult to accurately control the glue content of the fiberglass cloth after dipping. At the same time, the dipping roller and other related driving rollers inside the glue tank will be in full contact with the glue liquid over a large area. If the glue liquid adhered to them is not cleaned in time after long-term use, it will affect the dipping effect of the fiberglass cloth. Therefore, the cleaning workload is large. Summary of the Utility Model

[0003] The utility model provides a fiberglass cloth impregnating device, which solves the technical problems such as poor control of the dipping amount of the existing dipping device and large cleaning workload.

[0004] The utility model can be realized by the following technical solutions:

[0005] A fiberglass cloth impregnating device for glue liquid with relatively high viscosity, comprising a fiberglass cloth traction-transmitted by a winding and unwinding mechanism. The fiberglass cloth is first horizontally transmitted and then directly obliquely downward transmitted. A glue spraying mechanism and a glue scraping mechanism are sequentially arranged across the horizontal position of the fiberglass cloth. An active winding roller is arranged at the low end of the oblique position of the fiberglass cloth. The glue spraying mechanism is used for uniformly spraying glue liquid along the width direction of the top surface of the fiberglass cloth. The glue scraping mechanism is used for scraping the top surface of the fiberglass cloth after spraying glue to different degrees, so that the glue liquid is more evenly smeared on the top surface of the fiberglass cloth. The winding and unwinding mechanism is used for unwinding, winding and transmitting the fiberglass cloth, and making the bottom surface of the fiberglass cloth adhere to the glue liquid from the top surface of the fiberglass cloth at the winding position;

[0006] A recovery mechanism is arranged directly below the fiberglass cloth, and the recovery mechanism is used for receiving and recovering the leaked glue liquid.

[0007] Further, the glue spraying mechanism comprises a glue storage tank. A plurality of nozzles are evenly arranged at intervals on the bottom surface of the glue storage tank, and they are arranged in sequence along the width direction of the fiberglass cloth. A glue inlet and an air inlet are arranged on the top surface of the glue storage tank. The air inlet is communicated with an air compressor, and the air compressor is used for conveying air into the interior of the glue storage tank to apply pressure to the viscous glue inside the glue storage tank.

[0008] Further, the glue storage tank is integrally in a quadrangular prism structure, and the lower part of its cross section is in a sharp corner shape, and all the nozzles are arranged at the bottom end of the sharp corner.

[0009] Furthermore, the glue scraping mechanism includes a plurality of scrapers arranged across and spaced above the fiberglass cloth. Each scraper includes an obliquely-oriented cutting edge and a horizontal support connected together. The obliquely-oriented cutting edge faces the fiberglass cloth, and a driving roller of the winding and unwinding mechanism is correspondingly arranged directly below it. The horizontal support is connected to the frame through an adjustment mechanism, and the adjustment mechanism is used to adjust the distance between the obliquely-oriented cutting edge and the driving roller manually or electrically to adapt to different amounts of glue scraping.

[0010] The distances between these scrapers and their corresponding driving rollers decrease successively along the conveying direction of the fiberglass cloth.

[0011] Furthermore, the adjustment mechanism includes two support rods vertically arranged on the corresponding frame in the conveying area of the fiberglass cloth. A plurality of threaded through holes are evenly spaced on each support rod, and threaded holes are also provided at both ends of the horizontal support. By means of bolts passing through the corresponding threaded through holes on the support rod and being threadedly connected to the corresponding ends of the horizontal support, the adjustment of the distance between the obliquely-oriented cutting edge and the driving roller is achieved.

[0012] Or the adjustment mechanism includes two linear modules vertically arranged on the corresponding frame in the conveying area of the fiberglass cloth. The sliders of each linear module are respectively connected to the corresponding ends of the horizontal support, and the horizontal support is driven to move up and down by means of the linear module, thereby achieving the adjustment of the distance between the obliquely-oriented cutting edge and the driving roller.

[0013] Furthermore, the winding and unwinding mechanism includes a driven unwinding roller, a plurality of driving rollers, and a driving winding roller. The driving winding roller is arranged obliquely below the driving rollers. A plurality of driving rollers are correspondingly arranged at the horizontal driving position of the fiberglass cloth, and their rolling surfaces are all in rolling contact with the fiberglass cloth. One of the driving rollers is arranged on the top surface of the fiberglass cloth, and the rest of the driving rollers are all arranged on the bottom surface of the fiberglass cloth and are grouped in pairs. The ends of the two driving rollers in each group are correspondingly connected together through a connecting plate.

[0014] Furthermore, the recycling mechanism includes a glue receiving plate arranged along the horizontal conveying position and the obliquely downward conveying position of the fiberglass cloth, and a glue receiving groove arranged below the winding roller. The lower end of the glue receiving plate is connected to the upper end of the glue receiving groove, and upward bends are provided at its edge positions.

[0015] The beneficial technical effects of the present utility model are as follows:

[0016] 1. The spraying mechanism and scraping mechanism are used to spray glue on the fiberglass cloth evenly first, and then perform scraping operations to different degrees, so that the glue can be evenly coated on the top surface of the fiberglass cloth. Finally, the winding and unwinding mechanism is used to make the bottom surface of the fiberglass cloth adhere to the glue on the top surface, completing the impregnation of both sides of the fiberglass cloth. Compared with the one-time complete impregnation method in the glue tank, the impregnation device of the present utility model can accurately control the glue spraying amount of the spraying mechanism and the scraping amount of the scraping mechanism, thereby accurately controlling the glue content of the fiberglass cloth, greatly reducing glue waste, and effectively solving the problem of air bubbles being brought in during impregnation, providing guarantee for the subsequent fiberglass production quality, and having stronger practicability.

[0017] 2. The impregnation device of the present utility model can realize double-sided impregnation of the top surface first and then the bottom surface. Except that the scraping mechanism will continuously contact the glue and needs to be cleaned according to the actual situation, most of the driving rollers in the winding and unwinding mechanism do not directly contact the glue on a large area. For example, when spraying glue on the top surface, the driving rollers are mostly on the bottom surface of the fiberglass cloth and do not need to be disassembled and cleaned frequently. Compared with the glue tank type one-time impregnation device, it can greatly reduce the workload of operators and improve work efficiency.

[0018] At the same time, compared with a simple glue pouring device, the present utility model is provided with a scraping mechanism, which can evenly scrape the glue sprayed on the fiberglass cloth onto the surface of the fiberglass cloth again, and can be used for impregnation with glue of relatively high viscosity, with a wider application range.

[0019] 3. The scraping mechanism of the present utility model adopts a step-by-step scraping method instead of a one-time scraping method, which is more conducive to quickly and evenly coating the glue on the surface of the fiberglass cloth. At the same time, the distance between each scraper and the corresponding driving roller is adjustable, making it easier to meet the requirements of different types of fiberglass preparation, with stronger flexibility and wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the overall structure of the spraying mechanism of the present utility model;

[0022] Figure 3 is a schematic diagram of the overall structure of the adjustment mechanism of the present utility model;

[0023] Among them, 1 - spraying mechanism, 11 - glue storage cavity, 12 - nozzle, 13 - regulating valve, 14 - air inlet, 15 - glue inlet, 2 - scraping mechanism, 21 - scraper, 22 - linear module, 221 - slider, 3 - recovery mechanism, 4 - frame, 5 - conveyor roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The specific implementation manners of the present utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0025] As Figures 1-3 shown, the present utility model provides a glass fiber cloth impregnation device for glue with relatively high viscosity, which includes a glass fiber cloth traction-transmitted by a winding and unwinding mechanism. The glass fiber cloth is first horizontally transmitted and then directly obliquely downward transmitted. A glue spraying mechanism 1 and a glue scraping mechanism 2 are sequentially and horizontally arranged across it. An active winding roller is arranged at the low end of its oblique position. The glue spraying mechanism 1 is used to uniformly spray glue along the width direction of the top surface of the glass fiber cloth. The glue scraping mechanism 2 is used to perform scraping operations on the top surface of the glass fiber cloth after glue spraying to different degrees, so that the glue is more evenly applied to the top surface of the glass fiber cloth. The winding and unwinding mechanism is used to perform unwinding, winding and transmission operations on the glass fiber cloth, and make the bottom surface of the glass fiber cloth adhere to the glue on the top surface of the glass fiber cloth at the winding position. A recovery mechanism 3 is arranged directly below the glass fiber cloth, and the recovery mechanism 3 is used to receive and recover the leaked glue. Compared with the one-time double-sided impregnation in the prior art, the impregnation device of the present utility model can first impregnate the top surface of the glass fiber cloth and then the bottom surface of the glass fiber cloth, can control the glue spraying amount according to the glue spraying mechanism, and control the glue scraping amount by using the glue scraping mechanism, so as to accurately control the glue content of the glass fiber cloth. At the same time, the problem of air bubbles being brought in during impregnation can be effectively solved, which provides guarantee for the production quality of glass fiber, has stronger practicability and is convenient for popularization and application.

[0026] Specifically as follows:

[0027] First of all, the winding and unwinding mechanism, the glue spraying mechanism 1, the glue scraping mechanism 2 and the recovery mechanism 3 can all be arranged on a frame 4. The winding and unwinding mechanism includes a driven unwinding roller, a plurality of transmission rollers and an active winding roller arranged on the frame 4. The two ends of these rollers can be arranged on the frame 4. Among them, the active winding roller is arranged obliquely below the transmission rollers, which is convenient for forming an oblique transmission surface of the glass fiber cloth. A plurality of transmission rollers are correspondingly arranged at the horizontal transmission position of the glass fiber cloth, and their rolling surfaces are all in rolling contact with the glass fiber cloth, that is, they are on the same horizontal plane to form a horizontal transmission surface. One of the transmission rollers is arranged on the top surface of the glass fiber cloth, close to the position of the driven unwinding roller, and the rest of the transmission rollers are all arranged on the bottom surface of the glass fiber cloth, and are pairwise grouped. The ends of the two transmission rollers in each group are correspondingly connected together by a connecting plate to ensure the horizontal transmission of the glass fiber cloth and facilitate the implementation of glue spraying and glue scraping operations. Of course, a turning roller, a tensioning mechanism, etc. can also be arranged between the driven unwinding roller and the transmission rollers as required, as long as there is a continuous horizontal transmission and oblique transmission during the whole transmission process of the glass fiber cloth.

[0028] Meanwhile, with the help of the active winding roller, the non-sprayed side of the wound fiberglass cloth can adhere to the glue solution from the sprayed side, achieving double-sided impregnation. Therefore, we can adjust the distance between the active winding roller and the horizontal position of the fiberglass cloth, the winding force, etc. according to actual needs, so that the non-sprayed side can also be evenly applied with glue.

[0029] The glue spraying mechanism 1 includes a glue storage tank 11 spanning above the fiberglass cloth. A plurality of nozzles 12 are evenly spaced on the bottom surface of the glue storage tank 11 and are arranged in sequence along the width direction of the fiberglass cloth. The glue storage tank 11 can be designed to have an overall prismatic structure with a sharp-corner shape at the lower part of its cross-section, and all the nozzles 12 are arranged at the bottom end of the sharp corner. Of course, an adjustment valve 13 can be provided on each nozzle 12 to further control the glue flow rate.

[0030] For glue solutions with high viscosity, such as those that will not flow or are difficult to flow on their own when applied to the fiberglass cloth, it is difficult to directly spray them onto the fiberglass cloth. At this time, we need to apply pressure to the glue surface inside the glue storage tank 11 to promote the smooth ejection of the glue solution from the nozzle onto the fiberglass cloth. Therefore, an air inlet 14 is provided on the top surface of the glue storage tank 14, which is connected to an air compressor. The air compressor is used to convey air into the interior of the glue storage tank to apply pressure to the glue inside the tank. In this way, the pressurized gas generated by the air compressor acts on the glue surface, which is more conducive to pushing the glue with higher adhesion to continuously eject from the nozzle and evenly sprinkle onto the surface of the fiberglass cloth. In addition, a glue inlet 15 is also provided on the top surface of the glue storage tank for facilitating the addition of glue to the glue storage tank.

[0031] Considering that the adhered glue solution is not easy to flow on its own to cover the surface of the fiberglass cloth, a glue scraping mechanism 2 is added after the glue spraying mechanism 1. The glue scraping mechanism 2 includes a plurality of scrapers 21 spanning and spaced above the fiberglass cloth. Each scraper 21 includes an inclined cutting edge and a horizontal support connected together. The inclined cutting edge faces the fiberglass cloth, and a driving roller 5 of the winding and unwinding mechanism is correspondingly arranged directly below it. The horizontal support is connected to the frame 4 through an adjustment mechanism. The adjustment mechanism is used to adjust the distance between the inclined cutting edge and the driving roller 5 manually or electrically to adapt to different scraping amounts. At the same time, the distances between these scrapers 21 and their corresponding driving rollers 5 gradually decrease along the conveying direction of the fiberglass cloth. In this way, we can use the scrapers 21 to gradually scrape the glue, so that the glue solution can be better applied to the surface of the fiberglass cloth. In addition, due to the different requirements for the glue content in the production of fiberglass of different models, the adjustment mechanism can be used to adjust the distance between each scraper and the driving roller to change the amount of glue applied to the fiberglass cloth, with better flexibility and more able to meet the process requirements. The cutting edges of the scrapers are specially treated to avoid damaging the fiberglass cloth.

[0032] The adjustment mechanism can be implemented manually or electrically. For the manual method, both ends of the horizontal support can be bolted to the frame. For example, if there are two vertical support rods provided at corresponding positions on the frame, each support rod is respectively connected to the corresponding end of the horizontal support. A row of threaded through-holes is provided thereon from top to bottom, and threaded holes are also provided at both ends of the scraper. By means of bolts passing through the threaded through-holes at different positions on the support rod and being threadedly engaged with the horizontal support, the position adjustment of the scraper on the support rod can be achieved, thereby changing the distance between the scraper and the corresponding drive roller.

[0033] For the electric method, the two ends of the horizontal support can be respectively arranged on the sliders 221 of the corresponding linear modules 22. Each linear module 22 is vertically arranged on the frame in the glass fiber cloth conveying area, so as to drive the scraper to move up and down in a plane perpendicular to the glass fiber cloth according to process requirements, thereby adjusting the distance between the blade of the scraper and the glass fiber cloth to meet the process requirements. Of course, other electric structures that can be realized can also be used to perform the distance adjustment of the scraper.

[0034] Considering that glue leakage mostly occurs at the glue spraying, scraping and winding positions, the recovery mechanism includes a glue receiving plate arranged along the horizontal conveying position and the obliquely downward conveying position of the glass fiber cloth, and a glue receiving groove arranged below the winding roller. The lower end of the glue receiving plate is connected to the upper end of the glue receiving groove, and upward bends are provided at its edge positions. The split structure is convenient for maintenance, as well as pouring or cleaning the glue. The upward bends can facilitate the side leakage of the glue and better protect the working environment.

[0035] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that these are only examples. Without departing from the principles and essence of the present invention, various changes or modifications can be made to these implementation manners. Therefore, the protection scope of the present invention is defined by the appended claims.

Claims

1. A glass fiber cloth impregnating device, characterized in that: Used for adhesive liquid with high viscosity, including glass fiber cloth pulled and conveyed by a retractable mechanism, the glass fiber cloth is first conveyed horizontally and then directly conveyed obliquely downward, a glue spraying mechanism and a glue scraping mechanism are sequentially arranged across the horizontal position, and an active winding roller is arranged at the lower end of the oblique position, the glue spraying mechanism is used to uniformly spray the glue liquid along the width direction of the top surface of the glass fiber cloth, the glue scraping mechanism is used to perform different degrees of scraping operation on the top surface of the glass fiber cloth after glue spraying, so that the glue liquid is more evenly applied to the top surface of the glass fiber cloth, the retractable mechanism is used to unwind, rewind and convey the glass fiber cloth, and make the bottom surface of the glass fiber cloth stick to the glue liquid from the top surface of the glass fiber cloth at the retracted position; A recovery mechanism is arranged directly below the glass fiber cloth, and the recovery mechanism is used to receive and recover the missed glue solution.

2. The fiberglass cloth impregnating device according to claim 1, characterized in that: The glue spraying mechanism includes a glue storage tank, on the bottom surface of which a plurality of nozzles are evenly spaced and arranged in sequence along the width direction of the glass fiber cloth; a glue inlet and an air inlet are provided on the top surface of the glue storage tank, and the air inlet is connected to an air compressor, and the air compressor is used to supply air to the interior of the glue storage tank to apply pressure to the glue inside the glue storage tank.

3. The fiberglass cloth impregnating device according to claim 2, wherein: The glue storage tank is in the form of a quadrangular prism as a whole, the lower part of the cross section of which is in the shape of a sharp corner, and all the nozzles are arranged at the bottom end of the sharp corner.

4. The fiberglass cloth impregnating device according to claim 1, characterized in that: The scraping mechanism includes a plurality of scrapers arranged across intervals above the glass fiber cloth, each of the scrapers includes an oblique blade and a lateral support connected together, the oblique blade is arranged toward the glass fiber cloth, and a transmission roller of a retracting mechanism is arranged directly below the oblique blade, and the lateral support is connected to the frame through an adjustment mechanism, and the adjustment mechanism is used to manually or electrically adjust the distance between the oblique blade and the transmission roller to adapt to different scraping amounts. The distances between the scrapers and the corresponding transmission rollers decrease in sequence along the conveying direction of the glass fiber cloth.

5. The fiberglass cloth impregnating device according to claim 4, characterized in that: The adjustment mechanism comprises two support rods vertically arranged on the corresponding frame of the glass fiber cloth conveying area, each of the support rods is evenly spaced with a plurality of threaded through holes, and threaded holes are also opened at both ends of the transverse support, and bolts are passed through the corresponding threaded through holes on the support rods and threadedly connected with the corresponding ends of the transverse support, so as to achieve the adjustment of the spacing between the oblique knife edge and the transmission roller; Alternatively, the adjustment mechanism includes two linear modules vertically arranged on a frame corresponding to the glass fiber cloth conveying area, and the slider of each linear module is respectively connected to the corresponding end of the lateral support. The lateral support is driven up and down by the linear module, thereby realizing the adjustment of the distance between the oblique blade and the transmission roller.

6. The fiberglass cloth impregnating device according to claim 4, characterized in that: The retracting and unwinding mechanism includes a driven unwinding roller, a plurality of transmission rollers and an active rewinding roller, wherein the active rewinding roller is mounted obliquely below the transmission roller, and the plurality of transmission rollers are correspondingly arranged at the horizontal transmission position of the fiberglass cloth, and their rolling surfaces are all in rolling contact with the fiberglass cloth, wherein one of the transmission rollers is mounted on the top surface of the fiberglass cloth, and the other transmission rollers are mounted on the bottom surface of the fiberglass cloth, and two of them form a group, and the ends of the two transmission rollers in each group are correspondingly connected together through a connecting plate.

7. The fiberglass cloth impregnating device according to claim 1, wherein: The recycling mechanism includes a glue receiving plate arranged along the horizontal conveying position and the obliquely downward conveying position of the fiberglass cloth, and a glue receiving groove arranged below the winding roller. The lower end of the glue receiving plate is connected to the upper end of the glue receiving groove, and upward bends are provided at the edge positions thereof.

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