阅读说明：本技术 一种提高玻纤浸润性的装置与方法 (Device and method for improving glass fiber wettability ) 是由 陶守亮 吴佳龙 胡菊明 蔡正杰 雷伟锋 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种提高玻纤浸润性的装置与方法,包括初展装置,对纤维床进行初步展平；挤出淋膜装置,对纤维床进行熔融树脂的淋膜；浸润模具,纤维床从中通过并使熔融树脂浸润到纤维床中。该提高玻纤浸润性的装置既提高了玻纤浸润问题又使得浸润模具清理简单,且可提高设备运行速度。(The invention discloses a device and a method for improving glass fiber wettability, which comprises a primary spreading device, a secondary spreading device and a fiber bed spreading device, wherein the primary spreading device is used for primarily spreading a fiber bed; an extrusion laminating device for laminating the molten resin on the fiber bed; the mold is infiltrated, the fiber bed is passed through and the molten resin is infiltrated into the fiber bed. The device for improving the glass fiber wettability not only improves the problem of glass fiber wettability, but also enables the impregnation die to be simple to clean, and can improve the running speed of equipment.)

1. The utility model provides an improve device of glass fiber infiltration nature which characterized in that: comprises that

The initial unfolding device is used for primarily flattening the fiber bed;

an extrusion laminating device for laminating the molten resin on the fiber bed;

an infiltration mold through which the fiber bed passes and into which molten resin is infiltrated;

the pre-stretching device comprises a chain capable of being driven, a plurality of copper sheets are fixed on the chain, the chain is perpendicular to the advancing direction of the fiber bed, and the lower ends of the copper sheets are in contact with the fiber bed; the infiltration mold comprises an upper mold and a lower mold, wherein a plurality of protrusions which are arranged at intervals are convexly arranged on the flat upper surface of the lower mold along the advancing direction of the fiber bed, the upper surfaces of the protrusions are arc curved surfaces, and the corresponding protrusions on the upper mold are provided with concave arc surfaces.

2. The apparatus for improving the wettability of glass fibers according to claim 1, wherein: the extrusion film-coating device comprises a film-coating die head, and the film-coating die head is connected with an extruder.

3. The apparatus for improving the wettability of glass fibers according to claim 1, wherein: the copper sheets are evenly distributed on the chain at intervals.

4. A method for improving the wettability of glass fibers is characterized by comprising the following steps: firstly, flattening a preheated fiber bed by using a primary unfolding device, then extruding a molten resin laminated film onto the flattened fiber bed by using an extrusion laminating device, enabling the molten resin to quickly enter the fiber bed through the action of gravity, then enabling the fiber bed laminated with the molten resin to pass through an infiltration mold, further flattening the fiber bed by using a bulge of an arc curved surface on an upper mold of the infiltration mold, further infiltrating the molten resin into fibers of the fiber bed, and finally forming the fiber bed passing through the infiltration mold into a plate-shaped fiber sheet.

The technical field is as follows:

the invention relates to the field of new materials, in particular to a device and a method for improving glass fiber wettability.

Background art:

the existing infiltration system of the continuous glass fiber reinforced thermoplastic composite material production line mostly adopts an infiltration system consisting of a corrugated infiltration mold and a tension wire spreading roller, and when a yarn bed passes through the wire spreading roller, the yarn bed directly enters the infiltration mold to be combined with resin. The tension silk spreading roller of the structure has large damage to the fibers, and the transverse moving distance of the fibers is limited. The wave crest of the infiltration mould can secondarily damage the fiber, the running speed of the equipment is not high, and yarn breakage is easy to occur; in addition, the trough has aggregate, and the carbonization of aggregate is prolonged along with the start-up time, so that the mould is not very beneficial to cleaning.

The invention content is as follows:

the invention aims to solve the technical problem of providing a device for improving the glass fiber wettability, which improves the glass fiber wettability, enables the cleaning of a wetting mold to be simple, and can improve the running speed of equipment.

The technical scheme of the invention is to provide a device for improving the wettability of glass fibers, which comprises

The initial unfolding device is used for primarily flattening the fiber bed;

an extrusion laminating device for laminating the molten resin on the fiber bed;

an infiltration mold through which the fiber bed passes and into which molten resin is infiltrated;

the pre-stretching device comprises a chain capable of being driven, a plurality of copper sheets are fixed on the chain, the chain is perpendicular to the advancing direction of the fiber bed, and the lower ends of the copper sheets are in contact with the fiber bed; the infiltration mold comprises an upper mold and a lower mold, a plurality of protrusions arranged at intervals are convexly arranged on the lower mold along the advancing direction of the fiber bed, the upper surfaces of the protrusions are arc curved surfaces, and the corresponding protrusions on the upper mold are provided with concave arc surfaces.

Preferably, the extrusion laminating device comprises a laminating die head, and the laminating die head is connected with the extruder.

Preferably, the copper sheets are uniformly distributed on the chain at intervals.

The invention also provides a method for improving the wettability of the glass fibers, which comprises the steps of firstly flattening the preheated fiber bed by using a primary unfolding device, then extruding the molten resin laminated film onto the flattened fiber bed by using an extrusion laminating device, enabling the molten resin to rapidly enter the fiber bed under the action of gravity, enabling the fiber bed laminated with the molten resin to pass through an infiltration mold, further flattening the fiber bed by using the protrusions of the arc curved surface on the upper mold of the infiltration mold, further infiltrating the molten resin into the fibers of the fiber bed, and finally forming the fiber bed into a plate-shaped fiber sheet by using the fiber bed of the infiltration mold.

Compared with the prior art, the invention has the following advantages after adopting the scheme: the preheated fiber bed is initially unfolded through the initial unfolding device, the molten resin is sprayed on the initially unfolded fiber bed by the film spraying die head, the resin in a molten state flows into the fiber bed under the action of gravity, and then enters the infiltration die for re-impregnation, and the inside of the infiltration die is only provided with a plurality of protrusions on arc surfaces without peaks and troughs, so that the problem of glass fiber infiltration is solved, the infiltration die is easy to clean, and the running speed of equipment can be increased.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the structure of the infiltration mold of the present invention.

The specific implementation mode is as follows:

the invention is further illustrated with respect to specific embodiments below: