Winding machine glue tank impregnation system for wet winding

Abstract

The utility model discloses a glue tank impregnation system of a winding machine for wet winding in the technical field of fiber winding and forming, which comprises a glue tank assembly, a glue tank, a glue tank and a glue tank, the glue printing assembly is mounted on the glue tank assembly and is used for dipping the fibers with glue and ensuring that the glue content is controllable; the glue scraping assembly is installed on the glue groove assembly, located on the front side of the glue printing assembly and used for scraping redundant glue on the surface of the glue printing assembly; the glue pressing assembly is installed on the glue groove assembly, located on the rear side of the glue printing assembly and used for squeezing glue again after glue dipping is completed and controlling the resin content, and the problem that according to an existing glue roller contact method, the glue dipping amount cannot be adjusted according to different resin characteristics is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber winding molding, in particular to a winding machine dipping system. Background Art

[0002] Filament winding is a process in which continuous fibers (such as carbon fibers and glass fibers) are impregnated with resin and then wound around a core mold according to a specific pattern. The resulting composite product is then cured by heating and demolded. Filament winding processes are categorized into dry winding, wet winding, and semi-dry winding.

[0003] Wet winding involves directly impregnating untwisted fiber yarn with resin and then winding it onto a core mold. This process requires the fibers to be fully impregnated with resin, and the amount of impregnation must be uniform and controllable. This is particularly true in the field of composite solid rocket motor casings, where the enormous thrust generated by the solid rocket motor propels the entire missile into flight. The design imposes stringent requirements on the pressure resistance and weight of composite solid rocket motor casings. The casing wall thickness is fixed, and to ensure the casing's pressure resistance, the fiber volume content during the fiber winding process must be strictly controlled. While ensuring that the fibers are fully impregnated with resin, a higher fiber volume content results in a greater strength contribution. Conversely, a lower fiber volume content results in a higher negative mass, lowering the casing's pressure resistance and reducing safety.

[0004] The two most widely accepted dipping methods are direct dipping and the rubber roller contact method. Direct dipping is the simplest and most widely used dipping technique. This method involves continuously immersing the fiber in a liquid adhesive, with the resin content controlled by squeezing the adhesive roller. The rubber roller contact method involves half-immersing a rubber roller in the adhesive tank. The fiber contacts the rubber roller, which is exposed to the adhesive. The roller rotates, coating the surface with resin, which is then indirectly transferred to the continuous fiber through contact. Compared to direct dipping, this method effectively reduces the resin content of the dipped fiber. However, it cannot adjust the amount of adhesive to suit different resin properties. For example, some resins have high viscosities, and the rolling rubber roller carries a large amount of adhesive into contact with the continuous fiber, resulting in a higher resin content in the fiber. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a glue tank dipping system for a wet winding machine, which solves the problem that the existing rubber roller contact method cannot adjust the dipping amount according to different resin properties.

[0006] The purpose of the utility model is achieved as follows: a wet winding machine glue tank dipping system, comprising:

[0007] Glue tank assembly, used for containing resin;

[0008] The glue printing assembly is installed on the glue tank assembly to dip the fiber in glue and ensure that the glue content is controllable;

[0009] The scraper assembly is installed on the glue tank assembly and located in front of the printing glue assembly to scrape off excess glue on the surface of the printing glue assembly;

[0010] And the glue pressing component is installed on the glue tank component and located on the rear side of the printing glue component. It is used to squeeze glue again after the dipping is completed to control the resin content.

[0011] Furthermore, the glue tank assembly includes a glue tank whose inner cavity is heated by a water bath, and a temperature sensor for monitoring the temperature of the glue liquid is provided in the glue tank.

[0012] Furthermore, the rubber printing assembly includes a rubber printing roller and an elastic rubber-coated roller installed on the rubber dipping bracket. The elastic rubber-coated roller is arranged above the rubber printing roller and is pressed on the rubber printing roller under the action of elasticity.

[0013] Furthermore, the scraper assembly includes a scraper plate installed on the scraper bracket.

[0014] Furthermore, the scraper plate is made of polytetrafluoroethylene plate.

[0015] Furthermore, the glue pressing assembly includes a pair of glue pressing rollers installed on the glue pressing bracket, and the two glue pressing rollers are distributed up and down.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention controls the fiber impregnation content by adding a scraper plate on the front side of the printing rubber component and adding an elastic rubber-coated roller on the top to control the gap between the pressure roller and the printing rubber roller; in addition, the temperature of the glue solution can be controlled by heating in a water bath to ensure constant resin viscosity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the middle glue tank component of the utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the printing rubber component of the utility model.

[0021] Figure 4This is a partial cross-sectional view of the printing rubber component of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the scraper assembly in the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the medium-pressure rubber component of the utility model.

[0024] Among them, 100 glue tank assembly, 101 glue tank, 102 glue box, 103 liquid inlet pipe, 104 liquid outlet, 200 glue printing assembly, 201 glue dipping bracket, 201a U-shaped groove, 202 glue printing roller, 203 elastic rubber-coated roller, 203a rubber-coated roller, 203b spring, 203c pressure plate, 203d limit pin, 204 glue dipping top plate, 300 scraper assembly, 301 scraper bracket, 302 scraper plate, 400 glue pressing assembly, 401 glue pressing bracket, 402 glue pressing roller, 403 mounting hole, 500 guide roller assembly. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1-6 The wet winding machine glue tank dipping system shown includes:

[0027] The resin tank assembly 100 is used to contain the resin;

[0028] The glue printing assembly 200 is installed on the glue tank assembly 100 and is used to dip the fiber in glue and ensure that the glue content is controllable;

[0029] The scraper assembly 300 is installed on the glue tank assembly 100 and is located in front of the printing glue assembly 200 to scrape off excess glue on the surface of the printing glue assembly 200;

[0030] The glue pressing assembly 400 is installed on the glue tank assembly 100 and is located at the rear side of the printing glue assembly 200. It is used to squeeze glue again after the dipping is completed to control the resin content.

[0031] Specifically, a guide roller assembly 500 is provided on the glue tank assembly 100 in front of the glue scraping assembly 300. When working, it is used to guide the fiber into the system. The fiber enters the glue printing assembly 200 through the guide roller assembly 500. The glue printing assembly 200 rotates and contacts the glue in the glue tank assembly 100, and then prints the glue on the fiber in the glue printing assembly 200. The fiber with glue is output through the glue pressing assembly 400, thereby obtaining the glue-impregnated fiber and entering the next link.

[0032] It should be noted that the printing glue component 200 can ensure that the glue content is controllable, thereby controlling the fiber impregnation content and solving the existing problem.

[0033] Furthermore, the glue tank assembly 100 includes a glue tank 101 whose inner cavity is heated by a water bath, and a temperature sensor for monitoring the temperature of the glue liquid is provided in the glue tank 101.

[0034] Specifically, the glue tank 101 is arranged in the glue box 102, the interior of the glue box 102 is a hollow structure, a liquid inlet pipe 103 is provided on the side of the glue box 102, and a liquid outlet 104 is provided at the bottom of the glue box 102. The hollow glue box 102 can realize the water bath heating function, and the interior of the glue box 102 is used to hold heating media such as water or oil.

[0035] It should be noted that the temperature of the glue is controlled by heating in a water bath, thereby ensuring the constant viscosity of the resin and the effect of the glue.

[0036] Furthermore, the printing rubber assembly 200 includes a printing rubber roller 202 and an elastic rubber-coated roller 203 mounted on the dipping bracket 201. The elastic rubber-coated roller 203 is arranged above the printing rubber roller 202 and is pressed on the printing rubber roller 202 under elastic action.

[0037] Specifically, a pair of dipping brackets 201 are installed on the top of the glue box 102 on both sides of the glue groove 101. A U-shaped groove is opened on the top of the dipping bracket 201, and a dipping top plate 204 is also installed on the top. The elastic rubber-coated roller 203 includes a rubber-coated roller 203a. The two ends of the rubber-coated roller 203a are arranged in the U-shaped groove 201a. A pressure plate 203c is provided in the rubber-coated top plate 204. The pressure plate 203c is installed in the rubber-coated top plate 204 through a spring 203b. The bottom of the pressure plate 203c is processed into an arc shape that cooperates with the rubber-coated roller 203a. The rubber-coated top plate 204 is also threaded with a limit pin 203d that cooperates with the pressure plate 203c. The rubber-coated roller 203a is made of polyurethane.

[0038] It should be noted that, under the action of the spring 203b, the pressure plate 203c is pushed downward to drive the rubber-coated roller 203a to move downward, thereby shortening the gap between the rubber-coated roller 203a and the rubber-printing roller 202; the limit pin 203d is designed to control the maximum value of the gap between the rubber-coated roller 203a and the rubber-printing roller 202; thereby controlling the fiber impregnation content in this way.

[0039] Furthermore, the scraper assembly 300 includes a scraper plate 302 mounted on a scraper bracket 301 .

[0040] Specifically, the scraper plate 302 is made of polytetrafluoroethylene plate.

[0041] It should be noted that the design of the scraper assembly 300 controls the amount of glue on the printing roller 202.

[0042] Furthermore, the glue pressing assembly 400 includes a pair of glue pressing rollers 402 mounted on a glue pressing bracket 401 , and the two glue pressing rollers 402 are distributed up and down.

[0043] Specifically, two mounting holes 403 are opened between the glue pressing rollers 402 to respectively cooperate with the two glue pressing rollers 402. The mounting holes 403 located on the top are long holes, which are convenient for adjusting the gap between the two glue pressing rollers 402 as needed.

[0044] It should be noted that after the dipping is completed, the two pressing rollers squeeze the glue again to further control the resin content.

[0045] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A glue tank dipping system for a wet winding machine, characterized in that: include: A resin tank assembly (100) for containing resin; A rubber printing assembly (200) is mounted on the rubber tank assembly (100) and is used to dip the fibers in rubber and ensure that the rubber content is controllable. The rubber printing assembly (200) comprises a rubber printing roller (202) and an elastic rubber-coated roller (203) mounted on a rubber dipping bracket (201). The elastic rubber-coated roller (203) is arranged above the rubber printing roller (202) and is pressed onto the rubber printing roller (202) under the action of elasticity. A glue scraping assembly (300) is mounted on the glue tank assembly (100) and is located in front of the printing glue assembly (200) to scrape off excess glue on the surface of the printing glue assembly (200). The glue scraping assembly (300) comprises a glue scraping plate (302) mounted on a glue scraping bracket (301); and a glue pressing component (400), which is installed on the glue slot component (100) and located at the rear side of the glue printing component (200) and is used for squeezing glue again after the glue dipping is completed to control the resin content.

2. The wet winding machine glue tank dipping system according to claim 1 is characterized in that: The glue tank assembly (100) comprises a glue tank (101) whose inner cavity is heated by a water bath, and a temperature sensor for monitoring the temperature of the glue liquid is provided in the glue tank (101).

3. The wet winding machine glue tank dipping system according to claim 1 is characterized in that: The scraper plate (302) is made of a polytetrafluoroethylene plate.

4. A glue tank dipping system for a wet winding machine according to claim 1 or 2, characterized in that: The glue pressing assembly (400) comprises a pair of glue pressing rollers (402) mounted on a glue pressing bracket (401), wherein the two glue pressing rollers (402) are arranged vertically.

Images