A kind of impregnation device for prepreg production

Abstract

The utility model relates to prepreg production field discloses a kind of prepreg production is used to dip glue device, including dip tank, the top surface of dip tank is provided with mounting bracket, the inside of mounting bracket is provided with two adjusting seats, and the inside of two adjusting seats is rotatably connected with scraper, the side of mounting bracket is provided with adjusting assembly connected with adjusting seat, the side of scraper is provided with mounting groove, the inside of mounting groove is fixedly installed with semicircular turbine, the inside bottom surface of adjusting seat is provided with mounting hole, the inside of mounting hole is rotatably connected with worm through the bearing of setting, the device can effectively adjust scraper distance and angle by the adjusting assembly of setting, semicircular turbine, and cooperate through laser range finder, thickness monitoring sensor, the distance of real-time monitoring scraper and glass fiber cloth, glass fiber cloth thickness, ensure that glue is located with angle precision.

Description

Technical Field

[0001] This utility model belongs to the field of prepreg production technology, specifically a prepreg dipping device for prepreg production. Background Technology

[0002] Prepreg production involves impregnating reinforcing materials such as fiberglass cloth into a resin solution prepared in a certain proportion, consisting of epoxy resin, curing agent, filler, and solvent. By controlling the viscosity, temperature, and impregnation speed of the resin solution, the resin solution is made to penetrate and adhere evenly to the surface of the reinforcing material. The material is then dried and cured to a semi-cured (stage B) state.

[0003] For example, utility model patent CN215319904U discloses an impregnation device for prepreg production, including an impregnation tank, impregnation rollers, and fiberglass cloth. The impregnation rollers include two sets of pressure rollers disposed within the impregnation tank and two sets of conveying rollers disposed above the impregnation tank. A support is provided at the upper end of the impregnation tank, and the support has an opening for the fiberglass cloth to pass through. Scraping components are provided on both sides of the opening, and an extrusion component is provided at the upper end of the opening. This solves the problems of uneven impregnation affecting the production quality of prepregs and the difficulty in controlling the impregnation thickness of the adhesive, thus adjusting the production thickness of the prepreg.

[0004] However, in actual use, it was found that although the device can effectively ensure the uniformity of adhesive impregnation during the production of prepreg by scraping the scraper and scraping the excess adhesive to the side;

[0005] However, the fixed angle of the scraper in this device means that when processing fiberglass cloth of different thicknesses, the scraper cannot flexibly adjust its contact angle with the fiberglass cloth surface. This makes it easy for the adhesive to be incompletely scraped off and for the amount of residue to exceed the standard when dealing with thicker fiberglass cloth. Furthermore, when the viscosity of the adhesive changes due to factors such as mixing ratio and temperature, the fixed-angle scraper cannot be adjusted to adapt to the difference in adhesive flow, resulting in uneven distribution of the adhesive on the fiberglass cloth surface, causing local accumulation or residual bubbles, which affects the production quality and stability of the prepreg. Therefore, a prepreg dipping device for prepreg production is provided. Utility Model Content

[0006] The purpose of this utility model is to provide a resin impregnation device for producing prepregs in order to solve the problems mentioned above.

[0007] The technical solution adopted by this utility model is as follows: A prepreg dipping device for producing prepreg includes a dipping tank. A mounting bracket is provided on the top surface of the dipping tank. Two adjusting seats are provided inside the mounting bracket, and scrapers are rotatably connected inside the two adjusting seats. An adjusting component connected to the adjusting seats is provided on the side of the mounting bracket. An installation groove is opened on one side of the scraper. A semi-circular turbine is fixedly installed inside the installation groove. An installation hole is opened on the bottom surface of the adjusting seat. A worm is rotatably connected inside the installation hole through a bearing. The worm meshes with the semi-circular turbine. One end of the worm extends to the outside of the adjusting seat, and a rotating head is fixedly installed on one end of the worm.

[0008] In a preferred embodiment, the adjusting assembly includes a limiting hole, a threaded slider, a bidirectional ball screw, a bearing seat, a timing pulley, and a timing belt. Limiting holes are respectively opened on the left and right sides of the mounting bracket. A threaded slider corresponding to the adjusting seat is disposed inside the limiting hole. One end of the threaded slider is fixed to the side of the adjusting seat. A bidirectional ball screw is threadedly connected to the middle of the threaded slider. Bearing seats are fixedly installed on the left and right sides of the mounting bracket. One end of the bidirectional ball screw is fixedly installed in the middle of the bearing seat. A timing pulley is fixedly installed on the outer surface of the end of the bidirectional ball screw away from the bearing seat. A timing belt is sleeved on the outer surface of the timing pulley.

[0009] In a preferred embodiment, a rangefinder is fixedly mounted on one side of one of the two adjustment seats, and a thickness monitoring sensor is fixedly mounted on the top surface of the mounting bracket near the center. Both the rangefinder and the thickness monitoring sensor are electrically connected to an external display.

[0010] In a preferred embodiment, two side scrapers are symmetrically fixedly installed on the inner sidewall of the mounting bracket.

[0011] In a preferred embodiment, a tilt sensor is fixedly mounted on the top surface of the scraper, and the tilt sensor is electrically connected to an external display.

[0012] In a preferred embodiment, a plurality of support columns are fixedly installed on the bottom surface of the mounting bracket, and the bottom ends of the plurality of support columns are all fixed to the top surface of the impregnation tank.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this utility model, due to the adoption of the above-mentioned solution, the operator rotates the rotating head and uses the meshing transmission of the worm and the semi-circular turbine to flexibly adjust the tilt angle of the scraper, so that it closely adheres to the surface of the fiberglass cloth. During the adjustment of the scraper angle, the tilt angle sensor monitors the scraper tilt angle in real time to ensure accurate scraping angle. The device can effectively adjust the scraper spacing and angle through the set adjustment components, worm, and semi-circular turbine. With the cooperation of the laser rangefinder and thickness monitoring sensor, the distance between the scraper and the fiberglass cloth and the thickness of the fiberglass cloth are monitored in real time to ensure accurate scraping position and angle, and achieve uniform adhesive thickness during the prepreg impregnation process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the mounting bracket structure of this utility model;

[0017] Figure 3 This is a partial exploded view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the worm gear structure of this utility model.

[0019] The markings in the diagram are: 1. Impregnation tank; 2. Mounting bracket; 3. Adjusting seat; 4. Scraper; 5. Adjusting assembly; 501. Limiting hole; 502. Threaded slider; 503. Bidirectional ball screw; 504. Bearing housing; 505. Synchronous pulley; 506. Synchronous belt; 6. Mounting groove; 7. Semi-circular turbine; 8. Mounting hole; 9. Worm gear; 10. Rangefinder; 11. Thickness monitoring sensor; 12. Side scraper; 13. Tilt sensor; 14. Support column. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] refer to Figures 1-4As shown, a prepreg dipping device for prepreg production includes a dipping tank 1. A mounting bracket 2 is provided on the top surface of the dipping tank 1, and multiple support columns 14 are fixedly installed on the bottom surface of the mounting bracket 2. The bottom ends of the multiple support columns 14 are all fixed to the top surface of the dipping tank 1. The support columns 14 facilitate the stable mounting of the mounting bracket 2 above the dipping tank 1, ensuring the stability of the entire device structure and preventing the dipping accuracy from being affected by shaking during the dipping process. At the same time, it provides a foundation for the installation of the structure and ensures the safety of equipment operation.

[0022] refer to Figures 1-4 As shown, the mounting bracket 2 has two adjusting seats 3 inside, and each adjusting seat 3 is rotatably connected to a scraper 4. Two side scrapers 12 are symmetrically fixedly installed on the inner side wall of the mounting bracket 2. An angle sensor 13 is fixedly installed on the top surface of the scraper 4, and the angle sensor 13 is electrically connected to an external display. The adjusting seats 3, together with the rotatably connected scrapers 4, provide structural support for the angle adjustment of the scraper 4. The side scrapers 12 can clean excess adhesive from the edge of the fiberglass cloth, ensuring that the edge of the semi-cured sheet is neat. The angle sensor 13 can detect changes in the tilt angle of the scraper 4, convert the angle signal into an electrical signal, and then transmit it to an external display after amplification and filtering. The operator can obtain the scraper angle data in real time and intuitively, which facilitates precise adjustment of the scraper tilt angle according to production needs, ensuring uniform adhesive thickness. The angle sensor 13 can be a type such as the SCA100T-D01 angle sensor.

[0023] refer to Figures 1-4As shown, the mounting bracket 2 has an adjustment assembly 5 connected to the adjustment seat 3 on its side. The adjustment assembly 5 includes a limiting hole 501, a threaded slider 502, a bidirectional ball screw 503, a bearing seat 504, a timing pulley 505, and a timing belt 506. Limiting holes 501 are respectively opened on the left and right sides of the mounting bracket 2. The threaded slider 502 corresponding to the adjustment seat 3 is provided inside the limiting hole 501. One end of the threaded slider 502 is fixed to the side of the adjustment seat 3. The bidirectional ball screw 503 is threadedly connected to the middle of the threaded slider 502. Bearing seats 504 are fixedly installed on the left and right sides of the mounting bracket 2. One end of the bidirectional ball screw 503 is fixedly installed in the middle of the bearing seat 504, and the outer surface of the end of the bidirectional ball screw 503 away from the bearing seat 504 is fixedly installed. A synchronous pulley 505 is provided, and a synchronous belt 506 is fitted on the outer surface of the synchronous pulley 505. Through the set adjustment component 5, the positions of the two adjustment seats 3 can be precisely adjusted. Specifically, the operator first rotates the handwheel at one end of the single bidirectional ball screw 503. When the single bidirectional ball screw 503 rotates, the other bidirectional ball screw 503 can be rotated through the cooperation of the synchronous pulley 505 and the synchronous belt 506. This causes the threaded slider 502 to move along the screw axis within the limiting hole 501. The bidirectional ball screw 503 has threaded sections with opposite thread directions at both ends, which facilitates the synchronous displacement of the adjustment seats 3 towards each other, ensuring precise adjustment of the scraper 4 spacing. This allows for quick adaptation to the impregnation requirements of fiberglass cloth of different widths, improving production efficiency and flexibility.

[0024] refer to Figures 1-4 As shown, a rangefinder 10 is fixedly installed on one side of one of the two adjustment seats 3, and a thickness monitoring sensor 11 is fixedly installed on the top surface of the mounting bracket 2 near the center. Both the rangefinder 10 and the thickness monitoring sensor 11 are electrically connected to an external display. A reflector for the rangefinder is installed on one side of the other adjustment seat 3. The rangefinder 10 can monitor the distance between the two adjustment seats 3. The rangefinder 10 can be a laser rangefinder sensor LDM301, which calculates the distance between the scraper 4 and the surface of the fiberglass cloth by emitting laser light and receiving reflected light, using the speed of light and time difference, providing data support for scraper height adjustment. The thickness monitoring sensor 11 can provide real-time feedback of adhesive layer thickness data. The thickness monitoring sensor 11 can be a Keyence LK-G80 model, which calculates the thickness of the prepreg adhesive layer by detecting changes in radiation intensity. The rangefinder 10 and the thickness monitoring sensor 11, together with an external display, facilitate the visual monitoring of the impregnation process. Operators can adjust equipment parameters in a timely manner based on the data to ensure stable quality of the prepreg impregnation.

[0025] refer to Figures 1-4As shown, a mounting groove 6 is provided on one side of the scraper 4, and a semi-circular turbine 7 is fixedly installed inside the mounting groove 6. A mounting hole 8 is provided on the bottom surface of the inner side of the adjusting seat 3. A worm 9 is rotatably connected to the inside of the mounting hole 8 through a bearing. The worm 9 meshes with the semi-circular turbine 7. One end of the worm 9 extends to the outside of the adjusting seat 3, and a rotating head is fixedly installed at one end of the worm 9. The rotating head facilitates the rotation of the worm 9, so that the worm 9 meshes with the semi-circular turbine 7 and drives the scraper 4 to rotate within the adjusting seat 3, realizing flexible adjustment of the scraper angle. The worm 9 in this structure has strong self-locking properties and can accurately control the contact angle between the scraper 4 and the surface of the fiberglass cloth, adapting to the scraping needs of fiberglass cloth of different thicknesses and adhesives of different viscosities, effectively avoiding the problems of incomplete or excessive scraping of adhesive.

[0026] The implementation principle of this utility model's impregnation device for prepreg production is as follows: During prepreg production, after the fiberglass cloth is impregnated in the impregnation tank 1, it enters the internal area of ​​the mounting bracket 2. The operator, based on the width of the fiberglass cloth, rotates the bidirectional ball screw 503 in the adjusting assembly 5, causing the threaded slider 502 to slide within the limiting hole 501. Simultaneously, in conjunction with the transmission of the synchronous pulley 505 and the synchronous belt 506, the two adjusting seats 3 move synchronously, thereby precisely adjusting the distance between the two scrapers 4. When the scrapers 4 are adjusted to the appropriate position, the operator rotates the rotating head, utilizing the worm gear 9 and the semi-circular vortex... The meshing transmission of wheel 7 allows for flexible adjustment of the tilt angle of scraper 4, ensuring it closely adheres to the surface of the fiberglass cloth. During the adjustment process, tilt sensor 13 monitors the scraper tilt angle in real time to ensure accurate scraping angle. This device, through the adjustment component 5, worm gear 9, and semi-circular turbine 7, can effectively adjust the spacing and angle of scraper 4. With the cooperation of laser rangefinder 10 and thickness monitoring sensor 11, the distance between scraper 4 and fiberglass cloth, as well as the thickness of fiberglass cloth, are monitored in real time to ensure accurate scraping position and angle. This achieves uniform adhesive thickness during the prepreg impregnation process and ensures stable and reliable product quality.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A resin impregnation apparatus for producing prepreg, comprising an impregnation tank (1), characterized in that: The top surface of the impregnation tank (1) is provided with a mounting bracket (2). The mounting bracket (2) is provided with two adjusting seats (3), and scrapers (4) are rotatably connected inside the two adjusting seats (3). The side of the mounting bracket (2) is provided with an adjusting component (5) connected to the adjusting seat (3). A mounting groove (6) is opened on one side of the scraper (4). A semi-circular turbine (7) is fixedly installed inside the mounting groove (6). A mounting hole (8) is opened on the bottom surface of the adjusting seat (3). A worm (9) is rotatably connected inside the mounting hole (8) through a bearing. The worm (9) is meshed with the semi-circular turbine (7). One end of the worm (9) extends to the outside of the adjusting seat (3). A rotating head is fixedly installed at one end of the worm (9).

2. The adhesive impregnation apparatus for producing prepreg as described in claim 1, characterized in that: The adjustment assembly (5) includes a limiting hole (501), a threaded slider (502), a bidirectional ball screw (503), a bearing seat (504), a timing pulley (505), and a timing belt (506). The mounting bracket (2) has limiting holes (501) on its left and right sides respectively. The limiting hole (501) is provided with a threaded slider (502) corresponding to the adjustment seat (3) inside. One end of the threaded slider (502) is fixed to the side of the adjustment seat (3). The middle of the threaded slider (502) is threadedly connected to the bidirectional ball screw (503). The bearing seat (504) is fixedly installed on the left and right sides of the mounting bracket (2). One end of the bidirectional ball screw (503) is fixedly installed in the middle of the bearing seat (504). The outer surface of the end of the bidirectional ball screw (503) away from the bearing seat (504) is fixedly installed with a timing pulley (505). The outer surface of the timing pulley (505) is fitted with a timing belt (506).

3. The adhesive impregnation apparatus for producing prepreg as described in claim 1, characterized in that: The rangefinder (10) is fixedly installed on one side of one of the two adjustment seats (3), and the thickness monitoring sensor (11) is fixedly installed on the top surface of the mounting bracket (2) near the middle. Both the rangefinder (10) and the thickness monitoring sensor (11) are electrically connected to an external display.

4. The adhesive impregnation apparatus for producing prepreg as described in claim 1, characterized in that: The inner wall of the mounting bracket (2) has two side scrapers (12) symmetrically fixedly installed.

5. The adhesive impregnation apparatus for producing prepreg as described in claim 1, characterized in that: An angle sensor (13) is fixedly installed on the top surface of the scraper (4), and the angle sensor (13) is electrically connected to an external display.

6. The adhesive impregnation apparatus for producing prepreg as described in claim 1, characterized in that: The bottom surface of the mounting bracket (2) is fixedly equipped with multiple support columns (14), and the bottom ends of the multiple support columns (14) are fixed to the top surface of the impregnation tank (1).

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