CN218399518U

CN218399518U - A preimpregnation material pressfitting soaks device for carbon fiber production

Info

Publication number: CN218399518U
Application number: CN202222761843.6U
Authority: CN
Inventors: 薛冰军; 李卫刚; 张辉; 苏晓明
Original assignee: Xingtai Naknor Finish Rolling Technology Co ltd
Current assignee: Xingtai Naknor Finish Rolling Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-31
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a prepreg pressing and impregnating device for carbon fiber production, belonging to the technical field of carbon fiber prepreg; the device comprises a bottom frame, wherein at least one group of pressing structures are arranged on the bottom frame; the pressing structure mainly comprises a frame, a roller group, a roller gap adjusting structure and a transmission group; the machine frame is a rectangular frame, and two machine frames of the same pressing structure are fixed on the bottom frame in parallel; the upper roll bearing blocks at two ends of an upper roll and the lower roll bearing blocks at two ends of a lower compression roll of the same roll set are fixed in the machine frame at the corresponding sides, and the bearing blocks at two ends of the upper roll can move up and down in the machine frame; the two racks are fixed through a connecting rod arranged at the top end; the roll gap adjusting structure is positioned between the upper roll bearing block and the lower roll bearing block; the utility model discloses can realize the regulation of roll gap size for the pressfitting of the preimpregnation material that satisfies different thickness soaks.

Description

A preimpregnation material pressfitting soaks device for carbon fiber production

Technical Field

The utility model relates to carbon fiber prepreg technical field, in particular to preimpregnation material pressfitting soaks device for carbon fiber production.

Background

The prepreg is an intermediate material for manufacturing the composite material and the parts thereof, forms a basic unit of the composite material, and is an important link for ensuring the quality and reliability of the composite material and the parts thereof. The resin-based composite material RMC has high specific strength and specific stiffness and good designability, can effectively reduce the structural mass of a spacecraft, is the development focus of the current aerospace material, and gradually replaces the traditional metal material. In recent years, the usage amount of carbon fiber composite materials on space vehicles such as satellites and spacecrafts is increased year by year, and particularly, carbon fiber prepreg composite materials are widely applied to main body structures such as central bearing cylinders, base plates and connecting frames of satellites, so that various functional requirements of the spacecrafts are met.

The preparation of the carbon fiber prepreg requires preparing carbon fiber tows with required width and content, the carbon fiber tows are evenly paved on a fiber shelf, heated resin is evenly smeared on upper and lower release paper, the paved carbon fiber tows and the release paper smeared with the resin are placed into a pressing impregnation device, the carbon fiber tows in the middle of the upper and lower layers of release paper are evenly soaked with the resin by means of pressure between an upper roller and a lower roller, and then the carbon fiber materials soaked with the resin are cooled and shaped, and then cut edges and coiled to form the finished carbon fiber prepreg cloth. In the production process of the prepreg, the pressure of the resin adhesive film and the reinforcing material needs to be well controlled, and the synergistic effect of the matrix material and the reinforcing material can be ensured only if the pressure is proper. Insufficient pressing can not fully impregnate the fiber reinforced material with resin, thereby affecting the quality of finished products. In order to adapt to the production of different thickness preimpregnation materials, avoid appearing the excessive or insufficient problem of pressfitting, present pressfitting soaks the device and generally adopts lead screw lift to adjust the clearance of roll group from top to bottom, can not accurate adjustment product required thickness, and this just need can accurate regulation about the pressfitting in clearance between the compression roller contain the mechanism to satisfy the pressfitting of the preimpregnation material of different thickness.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned background art, the utility model provides a preimpregnation material pressfitting soaks device for carbon fiber production. The roll gap size can be adjusted, and the requirement for pressing impregnation of prepregs with different thicknesses can be met.

In order to realize the purpose, the utility model discloses the technical scheme who takes does:

a prepreg pressing impregnation device for carbon fiber production comprises a bottom frame, wherein at least one group of pressing structures is arranged on the bottom frame;

the pressing structure mainly comprises a frame, a roller group, a roller gap adjusting structure and a transmission group; the machine frame is a rectangular frame, and two machine frames of the same pressing structure are vertically fixed on the bottom frame; the upper roll bearing blocks at two ends of an upper roll and the lower roll bearing blocks at two ends of a lower roll of the same roll set are fixed in the machine frame at the corresponding sides, and the upper roll bearing blocks at two ends of the upper roll can move up and down in the machine frame;

the two racks are fixed through a connecting rod arranged at the top end; the roll gap adjusting structure is positioned between the upper roll bearing block and the lower roll bearing block on the same side; the roll gap adjusting structure comprises a servo motor, a ball screw, a wedge iron, an upper wedge iron and a wedge iron base plate; the upper wedge iron and the wedge iron base plate are respectively connected to the bottom surface of the upper roll bearing block and the top surface of the lower roll bearing block, the wedge iron is positioned between the upper wedge iron and the wedge iron base plate, and the wedge iron is in threaded connection with the ball screw; the top surface of the wedge iron and the bottom surface of the upper wedge iron are inclined surfaces, the inclined surfaces of the wedge iron and the bottom surface of the upper wedge iron are tightly attached in a manner of being symmetrical about the center, and the servo motor drives the ball screw to rotate, so that the wedge iron further moves between the upper wedge iron and the wedge iron base plate to realize the adjustment of the gap between the two rollers;

two output shafts of the transmission set are respectively connected with the input ends of the upper roller and the lower roller through universal joints.

Furthermore, the pressing structures are provided with three groups, and roll gaps of the three groups of pressing structures are opposite.

Furthermore, a hydraulic cylinder is fixedly arranged at the top of the rack, and the movable end of the hydraulic cylinder penetrates through a top frame of the rack and is fixedly connected with the upper roller bearing seat.

The utility model adopts the beneficial effect that above-mentioned technical scheme produced lies in:

the utility model discloses a top roll goes up and down under the effect of pneumatic cylinder and realizes the pressfitting effect to the preimpregnation material between the fixed bottom roll, and the regulation of roll gap size can be realized to online roll gap adjustment mechanism between top roll and the bottom roll under servo motor's drive for satisfy the pressfitting of the preimpregnation material of different thickness and contain the soaking.

Drawings

Fig. 1 is the utility model discloses prepreg pressfitting soaks device's schematic structure diagram.

Fig. 2 is a schematic view of the roll gap adjustment structure of fig. 1.

Fig. 3 is a schematic view of the schematic structure of fig. 2.

In the figure, the rolling mill comprises a frame 1, a frame 2, a hydraulic cylinder 3, an upper roll chock 4, an upper transmission mechanism 5, a connecting rod 6, a lower roll chock 7, a roll gap adjusting structure 8, a lower transmission mechanism 9, an upper roll 10, a lower roll 11, a bottom frame 7-1, a servo motor 7-2, a ball screw 7-3 wedges 7-4, upper wedges 7-5 and wedge base plates.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

A prepreg pressing and impregnating device for carbon fiber production comprises a bottom frame 11, wherein at least one group of pressing structures are arranged on the bottom frame 11;

the pressing structure mainly comprises a frame 1, a roller group, a roller gap adjusting structure 7 and a transmission group; the machine frame 1 is a rectangular frame, and two machine frames 1 of the same pressing structure are vertically arranged and fixed on the bottom frame 11; the upper roll chock 3 at two ends of an upper roll 9 and the lower roll chock 6 at two ends of a lower roll 10 of the same roll set are fixed in the frame 1 at the corresponding side, and the upper roll chock 3 at two ends of the upper roll 9 can move up and down in the frame 1;

the two racks 1 are fixed by a connecting rod 5 arranged at the top end; the roll gap adjusting structure 7 is positioned between the upper roll chock 3 and the lower roll chock 6 on the same side; the roll gap adjusting structure 7 comprises a servo motor 7-1, a ball screw 7-2, a wedge 7-3, an upper wedge 7-4 and a wedge base plate 7-5; the upper wedges 7-4 and the wedge backing plates 7-5 are respectively connected to the upper roll chock 3 and the lower roll chock 6, the wedges 7-3 are positioned between the upper wedges 7-4 and the wedge backing plates 7-5, and the wedges 7-3 are in threaded connection with the ball screw 7-2; the top surface of the wedge iron and the bottom surface of the upper wedge iron are both inclined surfaces, the inclined surfaces of the wedge iron and the bottom surface of the upper wedge iron are tightly attached in a manner of being symmetrical about the center, the servo motor 7-1 drives the ball screw 7-2 to rotate, and the wedge iron is further moved between the upper wedge iron 7-4 and the wedge iron base plate 7-5 to realize the adjustment of the gap between the two rollers;

two output shafts of the transmission set are respectively connected with the input ends of the upper roller 9 and the lower roller 10 through universal joints.

Furthermore, the three groups of pressing structures are arranged, and roll gaps of the three groups of pressing structures are opposite;

furthermore, a hydraulic cylinder 2 is fixedly arranged at the top of the rack 1, and the movable end of the hydraulic cylinder 2 penetrates through a top frame of the rack 1 to be fixedly connected with an upper roller bearing pedestal 3.

The following is a more specific example:

referring to fig. 1 and 2, in the present embodiment, a hydraulic cylinder 2, an upper roll chock 3, an upper transmission mechanism 4 and an upper roll 9 constitute a motor-driven upper roll mechanism;

the lower roll chock 6, the lower transmission mechanism 8 and the lower roll 10 form a lower roll mechanism driven by a motor, the roll gap adjusting structure 7 is positioned between the upper roll chock 3 and the lower roll chock 6, the hydraulic cylinder 2 is fixed at the top of the frame 1, the upper roll mechanism is lifted under the action of the hydraulic cylinder 2, the lower roll mechanism is placed at the bottom of the inner side of the frame 1 through the lower roll chock 6, and the frame 1 is fixed on the bottom frame 11.

The roll gap adjusting structure 7 comprises a servo motor 7-1, a ball screw 7-2, a wedge iron 7-3, an upper wedge iron 7-4 and a wedge iron base plate 7-5; the upper wedge iron 7-4 and the wedge iron base plate 7-5 are respectively connected to the bottom surface of the upper roll chock 3 and the top surface of the lower roll chock 6, the wedge iron 7-3 is positioned between the upper wedge iron 7-4 and the wedge iron base plate 7-5, and the wedge iron 7-3 is in threaded connection with the ball screw 7-2; the top surface of the wedge 7-3 and the bottom surface of the upper wedge 7-4 are both inclined surfaces, the inclined surfaces are tightly attached in a manner of being symmetrical about the center, the servo motor 7-1 drives the ball screw 7-2 to rotate, and the wedge 7-3 is further enabled to move between the upper wedge 7-4 and the wedge base plate 7-5 to achieve adjustment of the gap between the two rollers. In the embodiment, when the servo motor 7-1 drives the ball screw 7-2 to rotate, the ball screw 7-2 drives the wedge 7-3 to move transversely, and the two inclined surfaces of the top surface of the wedge 7-3 and the bottom surface of the upper wedge 7-4 slide relatively to each other, so that the upper roll chock 3 and the lower roll chock 6 are far away from or closely attached to each other. The wedges 7-3 are constrained to the upper surface of the wedge shim plate 7-5 and are movable laterally on the upper surface of the wedge shim plate 7-5. Referring specifically to fig. 3, when the wedge 7-3 moves leftward, the distance between the upper roll chock 3 and the lower roll chock 6 increases, and when the wedge 7-3 moves rightward, the distance between the upper roll chock 3 and the lower roll chock 6 decreases.

The upper roller 9 and the lower roller 10 respectively rotate under the driving of the motor to realize the continuous production of the prepreg, and the roller gap adjusting structure 7 realizes the gap adjustment between the upper roller 9 and the lower roller 10 under the driving of the servo motor 7-1 to meet the production of the prepregs with different thicknesses.

Claims

1. A prepreg pressing and impregnating device for carbon fiber production comprises a bottom frame (11), and is characterized in that at least one group of pressing structures are arranged on the bottom frame (11);

the pressing structure mainly comprises a rack (1), a roller group, a roller gap adjusting structure (7) and a transmission group; the machine frame (1) is a rectangular frame, and the two machine frames (1) of the same pressing structure are arranged side by side and are fixed on the bottom frame (11); the upper roll chock (3) at two ends of an upper roll (9) and the lower roll chock (6) at two ends of a lower roll (10) of the same roll set are fixed in the rack (1) at the corresponding sides, and the upper roll chock (3) at two ends of the upper roll (9) can move up and down in the rack (1);

the two racks (1) are fixed through a connecting rod (5) arranged at the top end; the roll gap adjusting structure (7) is positioned between the upper roll bearing block (3) and the lower roll bearing block (6) on the same side; the roll gap adjusting structure (7) comprises a servo motor (7-1), a ball screw (7-2), a wedge iron (7-3), an upper wedge iron (7-4) and a wedge iron base plate (7-5); the upper wedge iron (7-4) and the wedge iron base plate (7-5) are respectively connected to the bottom surface of the upper roll bearing block (3) and the top surface of the lower roll bearing block (6), the wedge iron (7-3) is positioned between the upper wedge iron (7-4) and the wedge iron base plate (7-5), and the wedge iron (7-3) is in threaded connection with the ball screw (7-2); the top surface of the wedge (7-3) and the bottom surface of the upper wedge (7-4) are inclined surfaces, the inclined surfaces of the wedge and the upper wedge are tightly attached in a manner of being symmetrical about the center, and the servo motor (7-1) drives the ball screw (7-2) to rotate, so that the wedge (7-3) is further moved between the upper wedge (7-4) and the wedge base plate (7-5) to realize the adjustment of the gap between the two rollers;

two output shafts of the transmission set are respectively connected with the input ends of the upper roller (9) and the lower roller (10) through universal joints.

2. The prepreg pressing and impregnating device for carbon fiber production according to claim 1, wherein the pressing structures are provided with three groups, and roll gaps of the three groups of pressing structures are opposite.

3. The prepreg pressing and impregnating device for carbon fiber production according to claim 1, wherein a hydraulic cylinder (2) is fixedly arranged at the top of the frame (1), and the movable end of the hydraulic cylinder (2) penetrates through a top frame of the frame (1) to be fixedly connected with the upper roll chock (3).