RU148895U1 - DEVICE FOR IMPREGNATING CONTINUOUS FIBER BINDING - Google Patents

Abstract

The utility model relates to the field of mechanical engineering, namely, equipment for binder impregnation of continuous fiber, used in the preparation of prepregs used for the manufacture of structural products. A device for impregnating a continuous fiber with a binder comprises a bath with a binder, a cover, a guide roller for supplying a continuous fiber, a straightening roller, a guide roller for removing continuous fiber and a die mounted in a through hole in the side wall of the bath. The lid is made with a vertical through hole for the passage of continuous fiber and is located above the bath with the possibility of vertical reciprocating movement. A guide roller for supplying continuous fiber is mounted on the lid at said through hole. The straightening roller is barrel-shaped and horizontally mounted under the cover. And the guide roller for removing continuous fiber is installed under the cover over the spreading roller. Thus, the device proposed by the applicant for impregnating a continuous fiber with a binder allows a more uniform impregnation of a continuous fiber with a binder at a higher feed rate of a continuous fiber. 1 n.p. f-ly, 2 ill.

Description

The utility model relates to the field of mechanical engineering, namely, equipment for binder impregnation of continuous fiber, used in the preparation of prepregs used for the manufacture of structural products.

A device is known for impregnating a continuous fiber with a binder, comprising a bath with a binder, a lid located above the bath, a guide roller for supplying a continuous fiber and a die mounted in a through hole in the side wall of the bath (EP 0005796, B29B 15/12, 1979). This device is adopted as a prototype.

The disadvantage of the above device is the uneven impregnation of the continuous fiber with a binder, which will result in a continuous fiber of low quality. Moreover, the impregnation process itself is carried out at a low speed, which leads to low productivity of the device.

The objective of this utility model is to provide a more uniform impregnation of a continuous fiber with a binder, and, accordingly, to improve the quality of a continuous fiber impregnated with a binder, as well as to increase the speed of impregnation of a continuous fiber, and, consequently, to increase the productivity of the device.

The technical result is achieved in that a device for impregnating a continuous fiber with a binder, comprising a bath with a binder, a cover, a guide roller for supplying a continuous fiber, and a die mounted in a through hole in the side wall of the bath, is equipped with a spreading roller and a guide roller for removing the continuous fiber, the lid is made with a vertical through hole for the passage of continuous fiber and is located above the bath with the possibility of vertical reciprocating movement Ia, the guide roller for supplying a continuous fiber mounted on the cap in said through hole, spreader roller is barrel-shaped and horizontally mounted under the lid, and a guide roller for discharging the continuous fiber is mounted under the lid of the distending roller. This embodiment of the device due to the fact that when the binder is impregnated with a binder, the continuous fiber is in a straightened form, it can be uniformly impregnated with a binder at a higher feed rate of the continuous fiber.

The above features and advantages of the utility model will be clear from the following description of the preferred embodiment with reference to the accompanying drawings, in which the same positions are used to represent the same elements:

in FIG. 1 is a diagram of an apparatus for impregnating a continuous fiber with a binder in accordance with the present utility model;

in FIG. 2 shows a spreading roller, view A of FIG. 1, in accordance with the present utility model.

A device for impregnating a continuous fiber with a binder comprises a bath 1 with a binder 2, over which a cover 3 is arranged with a possibility of vertical reciprocating movement. In the cover 3, a vertical through hole 4 is made for passing the continuous fiber 5.

A guide roller 6 is mounted on the lid 3 next to said through hole 4 for supplying a continuous fiber 5.

Under the cover 3, a spreading roller 7 is installed. The specified spreading roller 7 is barrel-shaped and placed in such a way that its axis 0-0 is horizontal.

Under the cover 3, above the spreading roller 7, a guide roller 8 is installed for removing the continuous fiber 5.

A through hole 10 is made in the side wall 9 of the bath 1, in which a die 11 is mounted with a molding hole 12. The device for impregnating a continuous fiber with a binder may comprise a set of replaceable dies 11 having molding holes 12 of various diameters, which are selected for installation in the through hole 10 of the bath 1 depending on the diameter of the continuous fiber 5.

A device for impregnating a continuous fiber binder works as follows.

The continuous fiber 5 from the creel is fed to the device for impregnating the continuous fiber with a binder. To fill the device, a continuous fiber 5, having rounded a guide roller 6 for supplying a continuous fiber, is passed through a vertical through hole 4 in the lid 3, a barrel-shaped spreading roller 7 and a guide roller 8 are bent around to remove the continuous fiber, and then passed to the forming hole 12 of the die 11.

The cover 3 is lowered onto the bath 1 with a binder 2. In this case, the spreading roller 7 together with the envelope fiber is immersed in the binder 2. The continuous fiber 5 is pulled through the bath 1 with the binder 2. Due to the fact that the spreading roller 7 has a barrel-shaped surface, a continuous fiber when it is tensioned, it spreads out (i.e., the flat fiber is flattened) and is uniformly impregnated with a binder.

Before exiting the bath 1, the continuous fiber 5 impregnated with a binder is again collected in a bundle and drawn through the molding hole 12 of the die 11, as a result of which a continuous fiber is formed, which is impregnated with a binder over its entire thickness. In this case, the excess binder 2 is squeezed out and returned to the bath 2.

The size of the hole 12 of the die 11 and the movement speed of the continuous fiber 5 are calculated depending on the linear density of the continuous fiber and filaments, the type (composition) of the fiber, the temperature and viscosity of the binder, etc.

By means of the proposed device, it is possible to impregnate glass, carbon, basalt, silica and other fibers and threads. Depending on the properties of the impregnated fiber and / or the required properties of the resulting fiber, for example, epoxy, polyester, phenol-formaldehyde resins and their solutions, as well as binders based on coal and oil pitch, can be used as a binder for impregnating a continuous fiber.

Thus, the device proposed by the applicant for impregnating a continuous fiber with a binder allows a more uniform impregnation of a continuous fiber with a binder at a higher feed rate of a continuous fiber.

The example of the implementation of the utility model described above should in all aspects be considered only as illustrative and not stipulating any restrictions. Therefore, other examples of the implementation of the present utility model and examples of implementation that do not go beyond the essential features described here may be used.

Claims (1)

A device for impregnating a continuous fiber with a binder, comprising a bath with a binder, a cover, a guide roller for supplying a continuous fiber, a straightening roller, a guide roller for removing continuous fiber and a die mounted in a through hole in the side wall of the bath, the cover being made with a vertical through hole for the passage of continuous fiber and is located above the bath with the possibility of vertical reciprocating movement, a guide roller for supplying continuous fiber tanovlen on the lid in said through hole, spreader roller is barrel-shaped and horizontally mounted under the lid, and a guide roller for discharging the continuous fiber is mounted under the lid of the distending roller.

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