Excess material secondary coating mechanism for long glass fiber reinforced plastic production

Abstract

The utility model discloses an excess material secondary coating mechanism for long glass fiber reinforced plastic production, and belongs to the technology for manufacturing high-performance engineering plastic materials through long glass fiber reinforcement. The mechanism is used at the discharging end of glass fiber strip dipping equipment, glass fiber strips are reinforced by coating plastics on the outer side of the dipping equipment, the mechanism comprises a plastic plate, a plurality of wire guide holes for the glass fiber strips to pass through are distributed in the plastic plate, a material receiving groove is formed in the feeding side of each wire guide hole, and the material receiving grooves are communicated with the plastic plate. The material receiving groove is used for receiving the glass fiber plastic molten material scraped by the wire guide hole, and the glass fiber strip can be in contact with the excess material in the material receiving groove to realize secondary coating; the mechanism further comprises a heating device, and the heating device is used for achieving the effect that the temperature exists at the position of the wire guide hole and can control the state of the plastic wrapped by the glass fiber strip. According to the device disclosed by the utility model, molten plastic coated on the outer sides of the glass fiber strips after the glass fiber strips are impregnated can be collected, recovered and reutilized, so that the possible non-uniform coating of the impregnated glass fiber strips can be made up, flying fibers in the production process can be coated and utilized, and the production quality of long glass fibers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass fiber preheating technical field, specifically to a kind of excess material secondary coating mechanism for long glass fiber reinforced plastic production. BACKGROUND

[0002] Long glass fiber is usually needed to be dipped and coated in production process, so-called coating is set to melt the plastic component that needs to be modified and added into molten material state by hot melting equipment, then long glass fiber strip realizes coating on its outside when passing, to prepare long glass fiber and improve its plastic performance, realize different product application demand.

[0003] Many existing dipping and coating equipment, but in the production process of long glass fiber, long glass fiber strip is usually directly treated in cooling tank after realizing coating by dipping and coating equipment, and in order to realize the transmission of long glass fiber strip, there also exists the way of prolonging production line and transmitting long glass fiber strip by transmission frame including through hole, long glass fiber will fall part of plastic that should be coated on its outside on the ground or stick on equipment when passing through hole, causing certain material waste and affecting subsequent long glass fiber production quality. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of excess material secondary coating mechanism for long glass fiber reinforced plastic production, which can realize the collection and coating of plastic melt fallen when long glass fiber strip passes through hole.

[0005] Technical scheme: a kind of excess material secondary coating mechanism for long glass fiber reinforced plastic production, the mechanism is used for the discharge end of long glass fiber strip dipping equipment, and the dipping equipment realizes enhancement by coating plastic on the outside of long glass fiber strip, the mechanism includes plastic plate, the plastic plate is distributed with several guide holes for the transmission of long glass fiber strip, and material receiving groove is arranged on the inlet side of guide hole, the material receiving groove is used to receive long glass fiber melt fallen from guide hole, and long glass fiber strip can contact excess material in material receiving groove to realize secondary coating.

[0006] The mechanism also includes heating device, and the heating device realizes the temperature existing at guide hole.

[0007] Preferably, the material receiving groove includes heating plate, and the lower surface of the heating plate is provided with electric heating coil pipe, long glass fiber material falling into the material receiving groove is re-coated on long glass fiber strip passing through guide hole after being heated.

[0008] Preferably, the material receiving groove is provided with groove, and the groove is arranged one by one with guide hole, to realize the accumulation of long glass fiber melt at the inlet of guide hole, so as to coat long glass fiber melt on long glass fiber strip to be passed through guide hole.

[0009] Preferably, the resin pump is connected to the material receiving groove to extract or supply the glass fiber material into the material receiving groove.

[0010] Preferably, the guide hole is a tapered hole, and the diameter of the inlet is larger than the diameter of the rear end.

[0011] Preferably, the inlet side of the guide hole is provided with a semispherical groove or a wavy groove.

[0012] Preferably, the material receiving groove is fixed on the molding plate, and the material receiving groove comprises a material collecting hopper arranged for the excess material collection.

[0013] Preferably, the outlet side of the molding plate comprises a water tank arranged to cool the long glass fiber.

[0014] Beneficial effects: compared with the prior art, the excess material secondary coating mechanism for long glass fiber reinforced plastic production of the utility model is used for the transmission of the glass fiber strip through the setting of the molding plate and the guide hole, and the material receiving groove is arranged at the guide hole to realize the recovery and secondary coating of the plastic melting, the secondary coating realizes the separation of the part of the glass fiber after the coating of the impregnation equipment, including the compensation of the glass fiber strip surface coating defects caused in the transmission path after the output of the impregnation equipment, and the production quality of the long glass fiber is improved and the production cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 Fig. 1 is a structural schematic diagram of the mechanism of the utility model;

[0016] Fig. 2 Fig. 4 is an implementation connection mode of the heating device in the utility model;

[0017] Fig. 3 Fig. 5 is a bottom (hemispherical) structure schematic diagram of the material receiving groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] The excess material secondary coating mechanism for long glass fiber reinforced plastic production of the utility model realizes the structure, please refer to Figs. 1-3The device comprises a shaping plate 1, which is located at the rear end of the impregnation equipment on the long glass fiber production line, that is, on the subsequent transmission path after the glass fiber strip has completed coating and splicing, and is close to the discharge port of the impregnation equipment, so that the wave line strip has a certain temperature, and then the glass fiber strip passes through the guide hole 2 provided on the shaping plate 1. The impregnation is a common device in the long glass fiber production process, which is used to wrap the modified plastic component on the glass fiber strip after melting to achieve the enhancement of the plastic performance. The guide hole 2 on the shaping plate 1 is a circular hole, and is arranged in a horn shape or a tapered structure, that is, the diameter of the inlet end is larger than that of the rear end, so that the plastic melt on the glass fiber strip after coating is better wrapped, but part of the excess plastic melt will be scratched off when passing through the hole. The utility model discloses to this end that a receiving groove 3 is arranged on the feeding side of the guide hole 2, and the receiving groove 3 is used to receive the plastic melt falling or being scratched off by the guide hole 2.

[0020] Specifically, the utility model discloses that a wave-shaped groove is arranged in the receiving groove 3, so that the plastic melt can be gathered in the groove, and then the glass fiber passes through the groove to realize secondary coating through contact with the plastic melt in the groove. Through the wave-shaped groove, the plastic melt at each guide hole 2 is also independent, which can improve the coating effect. Fig. 3 As shown in the figure, the bottom of the receiving groove 3 at the guide hole 2 can also be provided with a semispherical groove. Similarly, we can control the quality of secondary coating by observing the plastic melt in each groove. This process also includes adding a part of plastic melt to each semispherical groove or wave-shaped groove by artificial to realize better wrapping, and the grooves with more scratches can also be collected to avoid the influence of cooling and solidification and wrapping effect caused by mutual flow between the grooves.

[0021] For the foregoing introduction, we preferably set a resin pump to realize the recycling and supply of the plastic melt in the receiving groove 3, and accurately control the melt in the groove corresponding to each guide hole 2 through the branch pipeline.

[0022] The above introduction is operated by using the residual heat after the impregnation equipment discharges. Similarly, the device disclosed by the utility model can also be provided with a heating device 6, as shown in the figure. Fig. 2 The heating device 6 is connected with a heat-conducting plate, and an electric heating coil is mounted on the lower surface of the heating plate. The heating plate is located at the bottom of the receiving groove 3, and the glass fiber material falling into the receiving groove is heated and then re-coated on the glass fiber strip passing through the guide hole.

[0023] The long glass fiber after passing through the shaping plate 1 needs to be cooled, and the shaping plate 1 is arranged through the support 5, and the second shaping plate 4 is arranged through the support 5, the cooling water tank is arranged between the shaping plate 1 and the second shaping plate 4, the cooling water in the water tank can just contact the long glass fiber to realize cooling, the long glass fiber after being cooled for a certain time passes through the second shaping plate 4 for the second time, and the second shaping plate 4 can shape the surface of the long glass fiber for the second time, including cutting off or solidifying the redundant, protruding molten material block and the like.

[0024] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other embodiments without deviating from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than that of the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims.

Claims

1. A secondary covering mechanism for long glass fiber reinforced plastic production waste, the mechanism being used at the discharge end of a glass fiber strand impregnation device that impregnates a glass fiber strand by covering the outer side of the glass fiber strand with plastic to achieve reinforcement, characterized in that, The device comprises a molding plate (1) with a plurality of guide holes (2) for the transmission of glass fiber strips, a receiving groove (3) is arranged at the feeding side of the guide hole (2) for receiving the excess glass fiber melt dropped from the guide hole (2), and the glass fiber strip can contact the excess material in the receiving groove (3) to realize secondary coating. The device further comprises a heating device to realize the temperature at the guide hole (2).

2. The apparatus according to claim 1, wherein The receiving groove (3) is provided with a heating plate, the lower part of the heating plate is provided with an electric heating coil, and the glass fiber material falling into the receiving groove (3) is heated and then coated on the glass fiber strip passing through the guide hole (2).

3. The apparatus according to claim 1, wherein The receiving groove (3) is provided with a groove corresponding to the guide hole (2), the glass fiber material is melted in the groove to form a pile at the inlet of the guide hole (2), and the glass fiber material can be coated on the glass fiber strip passing through the guide hole (2).

4. The apparatus according to claim 1, wherein The receiving groove (3) is connected with a resin pump for pumping or supplying the glass fiber material into the receiving groove.

5. The apparatus according to claim 1, wherein The guide hole (2) is a tapered hole, the diameter at the inlet is larger than that at the rear end.

6. The apparatus according to claim 1, wherein The inlet side of the guide hole (2) is provided with a semispherical groove or a wavy groove.

7. The apparatus according to claim 1, wherein The receiving groove (3) is fixed on the molding plate (1), and the receiving groove (3) comprises a material collecting hopper for collecting the excess material.

8. The apparatus according to claim 1, wherein The outlet side of the molding plate (1) is provided with a water tank for cooling the long glass fiber.

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