Solvent-free fiber cloth preimpregnation device

Abstract

The utility model relates to a solvent-free fiber cloth preimpregnation device which comprises an unwinding mechanism and a heating mechanism, and the heating mechanism is used for heating solid resin to a molten state; the storage mechanism is used for storing resin, and the resin in the molten state can flow out of the storage mechanism; the coating mechanism is arranged below the storage mechanism, the heating mechanism is arranged in the coating mechanism, the unwinding mechanism is used for unwinding fiber cloth and conveying the fiber cloth to the coating mechanism, and the coating mechanism is used for uniformly coating the surface of the fiber cloth with resin in a molten state; the dipping mechanism is arranged on one side of the coating mechanism, and the dipping mechanism is used for fully dipping the resin into the fiber cloth; the cooling mechanism is arranged on one side of the impregnating mechanism, and the cooling mechanism is used for cooling the impregnated fiber cloth so as to cure and shape the resin; and the winding mechanism is arranged on one side of the cooling mechanism, and the winding mechanism is used for winding the cooled and cured prepreg fiber cloth.

Description

TECHNICAL FIELD

[0001] The utility model relates to fiber cloth pre -impregnation equipment technical field, concretely relates to a kind of solventless fiber cloth pre -impregnation device. BACKGROUND

[0002] Traditional fiber cloth pre -impregnation uses solution impregnation method, uses a large amount of solvent to dissolve resin, and needs to remove solvent by drying, drying and other processes after impregnation. This not only needs additional solvent recovery equipment, but also solvent volatilization is easy to cause air pollution, and environmental protection is low, and improper handling can also cause safety accidents. And in solution impregnation method, incomplete solvent removal can adversely affect the mechanical properties of pre -impregnated tape, and pores and porosity are easily generated during solvent removal process, affecting the interfacial adhesion properties of fiber and matrix, reducing material strength. SUMMARY

[0003] Therefore, it is necessary to provide a solventless fiber cloth pre -impregnation device to solve the technical problems that traditional fiber cloth pre -impregnation uses solution impregnation method, uses a large amount of solvent to dissolve resin, solvent volatilization is easy to cause air pollution, environmental protection is low, improper handling can also cause safety accidents, and pores and porosity are easily generated during solvent removal process, affecting the interfacial adhesion properties of fiber and matrix, reducing material strength.

[0004] To achieve the above purpose, the inventor provides a solventless fiber cloth pre -impregnation device, comprising:

[0005] Unwinding mechanism;

[0006] Heating mechanism, the heating mechanism is used to heat solid resin to molten state;

[0007] The storage mechanism is used to place resin, and the molten resin can flow out of the storage mechanism;

[0008] Coating mechanism, the coating mechanism is arranged below the storage mechanism, the heating mechanism is arranged in the coating mechanism, the unwinding mechanism is used to put out fiber cloth, and the fiber cloth is transmitted to the coating mechanism, and the coating mechanism is used to uniformly coat the molten resin on the surface of fiber cloth;

[0009] Impregnation mechanism, the impregnation mechanism is arranged on one side of the coating mechanism, and the impregnation mechanism is used to fully soak resin into the inside of fiber cloth;

[0010] Cooling mechanism, the cooling mechanism is arranged on one side of the impregnation mechanism, and the cooling mechanism is used to cool the impregnated fiber cloth to solidify and shape the resin;

[0011] And a winding mechanism is arranged on one side of the cooling mechanism, and the winding mechanism is used for winding the fiber cloth after being cooled and solidified.

[0012] As a preferred structure of the present application, the solvent-free fiber cloth impregnation device further comprises a film coating mechanism arranged between the cooling mechanism and the winding mechanism, and the film coating mechanism is used for attaching a plastic film to the surface of the fiber cloth.

[0013] As a preferred structure of the present application, the storage mechanism comprises a storage rack, the storage rack is detachably arranged, the storage rack is arranged above the coating mechanism, and the storage rack is provided with a gap for the resin in a molten state to flow out.

[0014] As a preferred structure of the present application, the storage rack is provided with a grid, and the grid is provided with a grid-shaped gap.

[0015] As a preferred structure of the present application, the storage mechanism further comprises a fixing frame, the fixing frame is fixedly arranged, the storage rack is arranged on the fixing frame, and the storage rack and the fixing frame are detachably connected.

[0016] As a preferred structure of the present application, the coating mechanism comprises a coating driving component and at least two coating rollers, the at least two coating rollers are respectively arranged on a horizontal plane, the at least two coating rollers are respectively in transmission connection with the coating driving component, and the coating driving component is used for driving the coating rollers to rotate.

[0017] The heating mechanism is a heating element arranged in the interior of the coating roller.

[0018] As a preferred structure of the present application, the impregnation mechanism comprises a heating box and a heating component, one side of the heating box is provided with a first opening, the other side of the heating box is provided with a second opening, the first opening and the second opening are oppositely arranged, and the heating component is arranged on the inner wall of the heating box.

[0019] As a preferred structure of the present application, the side of the heating box is provided with an inspection opening, the inspection opening is provided with an inspection door, the inspection door is hinged to the heating box, and the inspection door is used for opening or closing the inspection opening.

[0020] As a preferred structure of the present application, the cooling mechanism comprises a first driving component, a cooling roller and a cooling pipeline, the cooling roller is in transmission connection with the first driving component, the first driving component is used for driving the cooling roller to rotate, and the cooling pipeline is arranged around the inner wall of the cooling roller.

[0021] As a preferred structure of the utility model, the film covering mechanism comprises an unwinding shaft, at least two guide rollers, a pressing roller, a second driving component and a third driving component;

[0022] The second driving component is in transmission connection with the unwinding shaft, and is used for driving the unwinding shaft to rotate.

[0023] The at least two guide rollers are arranged at intervals respectively, the pressing roller is arranged on one side of the guide rollers, the third driving component is in transmission connection with the guide rollers, and is used for driving the guide rollers to rotate.

[0024] Compared with the prior art, the beneficial effects of the above technical scheme are as follows: during work, the heating mechanism is started, the coating mechanism is heated by the heating mechanism, the temperature of the coating mechanism is increased, the solid-state resin is heated to a molten state by the heated coating mechanism transmitting heat to the solid-state resin in the upward direction, the resin in the molten state flows out of the storage mechanism and drops on the coating mechanism, the resin can be continuously heated by the heated coating mechanism, the good fluidity of the resin is maintained, and the coating effect is further ensured.

[0025] Compared with the traditional solution impregnation method for fiber cloth pre-impregnation, the solvent-free fiber cloth pre-impregnation device adopts a solvent-free technology, avoids the use of a large amount of solvent, eliminates air pollution caused by solvent volatilization, reduces safety risks, is environmentally friendly and safe, and does not require complex solvent recovery equipment, thereby reducing production costs.

[0026] The above content related to the description of the utility model is only a summary of the technical solutions of the present application. In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, and then can be implemented according to the content of the description and the drawings, and in order to let the above-mentioned purpose and other purposes, characteristics and advantages of the present application can be more easily understood, the following is described in combination with the specific embodiments of the present application and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings are only used to show the principles, implementation modes, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and cannot be considered as a limitation of the present application.

[0028] In the drawings of the specification:

[0029] Figure 1 One of the side views of the solvent-free fiber cloth pre-impregnation device described in the specific embodiment;

[0030] Figure 2 The second side view of the solvent-free fiber cloth pre-impregnation device described in the specific embodiment;

[0031] Figure 3 The top view of the storage rack described in the specific embodiment;

[0032] Figure 4 The side view of the storage mechanism described in the specific embodiment;

[0033] Figure 5 The sectional view of the coating roller described in the specific embodiment;

[0034] Figure 6 The structural schematic diagram of the heating box described in the specific embodiment;

[0035] Figure 7 The side view of the heating box described in the specific embodiment;

[0036] Figure 8 The sectional view of the cooling roller described in the specific embodiment;

[0037] Figure 9 The schematic diagram of the coating driving part driving the coating roller described in the specific embodiment. The reference signs involved in the above drawings are explained as follows; 100, machine table,

[0038] 1, unwinding mechanism,

[0039] 11, rotating shaft,

[0040] 12, transmission roller,

[0041] 2, heating mechanism,

[0042] 3, storage mechanism,

[0043] 31. A shelf,

[0044] 32. A fixing frame,

[0045] 4. A coating mechanism,

[0046] 41. A coating roller,

[0047] 42. A coating driving part,

[0048] 5. An impregnating mechanism,

[0049] 51. A heating box,

[0050] 52. A heating part,

[0051] 53. A first opening,

[0052] 54. A second opening,

[0053] 55. An access door,

[0054] 6. A cooling mechanism,

[0055] 61. A cooling roller,

[0056] 62. A cooling pipe,

[0057] 7. A film coating mechanism,

[0058] 71. An unwinding shaft,

[0059] 72. A guide roller,

[0060] 73. A pressing roller,

[0061] 8. A winding mechanism,

[0062] 81. A winding roller. DETAILED DESCRIPTION

[0063] To make the possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects achieved, etc. of the present application clear, the following will be described in detail in combination with the specific embodiments listed and the accompanying drawings. The embodiments recorded in this paper are only used to more clearly illustrate the technical schemes of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0064] The term "embodiment" is mentioned herein means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit the independence or association between other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form a corresponding implementable technical solution.

[0065] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the art to which the present application belongs; the use of related terms herein is only for the purpose of describing specific embodiments, and is not intended to limit the present application.

[0066] In the description of the present application, the phrase "and / or" is a description of the logical relationship between the objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases: A exists, B exists, and A and B exist at the same time. In addition, the character " / " herein generally represents that the associated objects before and after are a "or" logical relationship.

[0067] In the present application, the terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary and secondary or order relationship between the entities or operations.

[0068] In the present application, without more limitation, the "includes", "contains", "has" or other similar expressions used in the sentence are intended to cover non-exclusive inclusion, and these expressions do not exclude the presence of other elements in the process, method or product including the described elements, so that the process, method or product including a series of elements can not only include those limited elements, but also include other elements not explicitly listed, or also include the elements inherent to such process, method or product.

[0069] As the same as the understanding in the "Guidelines for Examination", in the present application, the expressions such as "greater than", "less than", "exceed" are understood as not including the number; the expressions such as "above", "below", "within" are understood as including the number. In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times", etc., unless otherwise explicitly limited.

[0070] In the description of the embodiments of the present application, the spatial relative expressions used, such as "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship shown in the specific embodiments or the drawings, and are only used to facilitate the description of the specific embodiments of the present application or to facilitate the understanding of the reader, and do not indicate or imply that the indicated device or component must have a particular position, a particular orientation, or be constructed or operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, it is also understood in the context that when referring to an element connected to another element "on" or "under", it can be directly connected to another element "on" or "under" or indirectly connected to another element "on" or "under" through an intermediate element.

[0071] Unless otherwise explicitly specified or limited, in the description of the embodiments of the present application, the terms "mount", "connect", "connect", "fix", "set", and the like should be understood broadly. For example, the "connection" can be fixed connection, or detachable connection, or integral setting; it can be mechanical connection, or electrical connection, or communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which the present application belongs, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0072] Please refer to Figures 1 to 9 The present embodiment relates to a kind of solventless fiber cloth pre-impregnation device, comprising:

[0073] Machine table 100, wherein machine table 100 is fixedly arranged on ground, provides support for solventless fiber cloth pre-impregnation device overall device, ensure its stable operation.

[0074] The unwinding mechanism 1 is located at the starting end of the whole device, and is used to unwind and transport the fiber cloth. The unwinding mechanism 1 realizes automatic unwinding and conveying of the fiber cloth, ensures continuous operation of the whole solvent-free fiber cloth prepreg device, greatly improves production efficiency, reduces labor intensity caused by manual unwinding, and reduces production problems caused by manual operation errors. Specifically, in the embodiment, the unwinding mechanism 1 includes a rotating shaft 11, an unwinding motor, and a plurality of transmission rollers 12. The fiber cloth roll is placed on the rotating shaft 11. The unwinding motor is connected with the rotating shaft 11 through a chain wheel transmission. The unwinding motor drives the rotating shaft 11 to rotate, so that the fiber cloth roll is gradually unwound. The plurality of transmission rollers 12 are arranged at intervals. The fiber cloth is guided to be stably conveyed from the rotating shaft 11 to the coating mechanism 4 along a predetermined path through the plurality of transmission rollers 12, so as to avoid problems such as deviation and winding of the fiber cloth during unwinding. The position and angle of the transmission roller 12 can be adjusted as needed. The number of the transmission rollers 12 is not limited, and can be set according to actual needs. The transmission rollers 12 can be three or four.

[0075] The heating mechanism 2 is used to heat the solid resin to a molten state. Through heating of the heating mechanism 2, heat is transmitted to the solid resin, so that the solid resin can be heated to a molten state, meeting the requirements of the subsequent coating and impregnation process on the state of the resin. The solid resin is converted into a molten state by the heating mechanism 2, replacing the traditional solvent-containing resin, and eliminating environmental pollution, safety hazards and other problems caused by the solvent from the source.

[0076] The storage mechanism 3 is used to place the solid resin, and the resin in a molten state can flow out of the storage mechanism 3, so as to ensure that the resin in a molten state can smoothly drip onto the coating mechanism 4.

[0077] The coating mechanism 4 is arranged below the storage mechanism 3, so as to ensure that the resin in a molten state can smoothly drip onto the coating mechanism 4. The heating mechanism 2 is arranged in the coating mechanism 4. The coating mechanism 4 is heated by the heating mechanism 2, so that the temperature of the coating mechanism 4 is increased. Since the coating mechanism 4 is arranged below the storage mechanism 3, the heated coating mechanism 4 transmits heat to the solid resin in the upward direction, so as to heat the solid resin to a molten state. The resin in a molten state flows out of the storage mechanism 3 and drips onto the coating mechanism 4. The heated coating mechanism 4 can continuously heat the resin, so as to maintain good fluidity of the resin and further ensure the coating effect. The unwinding mechanism 1 is used to unwind and transport the fiber cloth to the coating mechanism 4. The coating mechanism 4 is used to uniformly coat the resin in a molten state on the surface of the fiber cloth. The coating mechanism 4 realizes uniform coating of the molten resin on the surface of the fiber cloth, so as to ensure that each part of the fiber cloth can be fully impregnated, and effectively improves the quality and performance of the prepreg.

[0078] An impregnation mechanism 5 is arranged on one side of the coating mechanism 4, and is used for fully impregnating resin into the fiber cloth; the resin is fully impregnated into the fiber cloth by the impregnation mechanism 5, the bonding force between the fiber and the resin is enhanced, and the mechanical properties of the prepreg are significantly improved

[0079] A cooling mechanism 6 is arranged on one side of the impregnation mechanism 5, and is used for cooling the impregnated fiber cloth to solidify and shape the resin; the impregnated fiber cloth is rapidly cooled by the cooling mechanism 6 to solidify and shape the resin, and the subsequent winding is facilitated.

[0080] A winding mechanism 8 is arranged on one side of the cooling mechanism 6, and is used for winding the cooled and solidified prepreg fiber cloth. The automatic winding of the prepreg fiber cloth is realized by the winding mechanism 8, the storage and transportation of the product are facilitated, the automation degree of production is improved, and the labor intensity of manual winding is reduced. The winding mechanism 8 includes a winding roller 81 and a winding motor, the winding motor is connected with the winding roller 81 through a chain wheel transmission, the winding motor drives the winding roller 81 to rotate, the cooled and solidified prepreg fiber cloth is wound on the winding roller 81, and the winding process is completed.

[0081] Specifically, in the solvent-free fiber cloth prepreg device in the embodiment, when working, as shown in the figure, Figures 1 to 8 The heating mechanism 2 is started, the coating mechanism 4 is heated by the heating mechanism 2, the temperature of the coating mechanism 4 is increased, the coating mechanism 4 is arranged below the placing mechanism 3, the heated coating mechanism 4 transmits heat to the solid resin upward, the solid resin is heated to a molten state, the resin in the molten state flows out of the placing mechanism 3 and drops on the coating mechanism 4; and the heated coating mechanism 4 can continuously heat the resin, maintains good fluidity of the resin, and further guarantees the coating effect. Then the fiber cloth is slowly unwound by the unwinding mechanism 1, when the fiber cloth passes through the coating mechanism 4, the coating mechanism 4 rotates to uniformly coat the molten resin on the surface of the fiber cloth; then the fiber cloth coated with the resin enters the impregnation mechanism 5, the resin is fully impregnated into the fiber cloth by the impregnation mechanism 5, then the impregnated fiber cloth enters the cooling mechanism 6, the impregnated fiber cloth is rapidly cooled by the cooling mechanism 6 to solidify and shape the resin, finally, the winding mechanism 8 winds the prepreg fiber cloth, and the whole prepreg processing process is completed.

[0082] Compared to the traditional solution impregnation method for fiber prepreg, the solvent-free fiber prepreg device in this embodiment uses solvent-free technology, avoiding the use of large amounts of solvent, eliminating air pollution caused by solvent evaporation, reducing safety risks, and ensuring environmental safety. Simultaneously, it eliminates the need for complex solvent recovery equipment, reducing production costs. Through the synergistic effect of various mechanisms, the molten resin achieves full impregnation and curing of the fiber fabric, effectively avoiding the impact of incomplete solvent removal on the mechanical properties of the prepreg tape, reducing the generation of air bubbles and pores, significantly improving the interfacial adhesion between the fiber and the matrix, increasing the strength and quality of the prepreg fiber fabric, and improving production efficiency.

[0083] Optionally, in some embodiments, such as Figures 1 to 8 As shown, the solvent-free fiber cloth prepreg apparatus further includes a coating mechanism 7, which is disposed between the cooling mechanism 6 and the winding mechanism 8. The coating mechanism 7 is used to adhere a plastic film to the surface of the fiber cloth. By applying the plastic film to the surface of the prepreg fiber cloth through the coating mechanism 7, the prepreg fiber cloth can be effectively prevented from being contaminated and damaged by external factors, extending the shelf life of the prepreg and improving product quality.

[0084] Optionally, in some embodiments, such as Figures 1 to 8 As shown, the coating mechanism 7 includes an unwinding shaft 71, at least two guide rollers 72, a pressing roller 73, a second drive component, and a third drive component. The second drive component is connected to the unwinding shaft 71 via a sprocket drive. The second drive component is a motor and is used to drive the unwinding shaft 71 to rotate. The unwinding shaft 71 is used to hold a roll of plastic film. The plastic film is PE film. At least two guide rollers 72 are spaced apart. The pressing roller 73 is located on one side of the guide rollers 72. The third drive component is connected to the guide rollers 72 via a sprocket drive. The third drive component is a motor and is used to drive the guide rollers 72 to rotate. The second drive component drives the rotating shaft 11 to rotate, causing the plastic film roll to gradually unfold and release the plastic film. Then, the third drive component drives the guide roller 72 to rotate. Under the guidance of the guide roller 72, the plastic film is bonded to the cooled fiber cloth at the pressing roller 73, protecting the prepreg fiber cloth. This effectively prevents the prepreg fiber cloth from being contaminated and damaged by the outside world, extends the storage period of the prepreg, and improves product quality.

[0085] Optionally, in some embodiments, such as Figures 1 to 8As shown, the storage mechanism 3 comprises a storage rack 31, which is detachably arranged on a fixing rack 32, facilitating regular cleaning of the storage rack 31. The storage rack 31 is arranged above the coating mechanism 4, and is provided with gaps for the molten resin to flow out, ensuring that the molten resin can smoothly drip onto the coating roller 41 of the coating mechanism 4.

[0086] Specifically, in the present embodiment, as shown in Figures 1 to 8 The storage rack 31 is provided with a grid, and the grid is provided with grid-shaped gaps. The storage rack 31 adopts a grid structure and is provided with grid-shaped gaps for storing solid resin. After the resin is heated and melted, it can flow out through the gaps. The grid-shaped storage rack 31 is designed to allow the resin to flow out uniformly, providing a stable supply of resin for the coating mechanism 4, thereby ensuring uniform coating effect and improving the quality stability of the prepreg.

[0087] Specifically, in the present embodiment, as shown in Figures 1 to 8 The storage mechanism 3 further comprises a fixing rack 32, which is fixedly arranged on the machine table 100. The storage rack 31 is arranged on the fixing rack 32, and the storage rack 31 and the fixing rack 32 are detachably connected. The storage rack 31 is clamped into the fixing rack 32 to achieve fixation. The storage rack 31 and the fixing rack 32 are detachably connected to facilitate the disassembly and cleaning of the storage rack.

[0088] Optionally, in some embodiments, as shown in Figures 1 to 8As shown, the coating mechanism 4 comprises a coating driving component 42 and at least two coating rollers 41, which are respectively arranged on a horizontal plane and connected with the coating driving component 42 through a chain wheel transmission. The coating driving component 42 is a motor, which is used to drive the rotation of the coating rollers 41. The rotation of the coating rollers 41 makes the surface of the coating rollers 41 fully contact with the fiber cloth, so that the resin in a molten state is uniformly coated on the surface of the fiber cloth, ensuring that each part of the fiber cloth is fully infiltrated, and effectively improving the quality and performance of the prepreg. The heating mechanism 2 is a heating element, which is arranged in the coating roller 41. The heating element is used to heat the coating roller 41, so that the temperature of the coating roller 41 is increased. Since the coating roller 41 is arranged below the storage rack 31, the heated coating roller 41 transmits heat to the solid resin upward, so that the solid resin is heated to a molten state. The resin in a molten state flows out from the gap of the storage rack 31 and drops on the coating roller 41. The heated coating roller 41 can continuously heat the resin, so as to maintain the good fluidity of the resin and further ensure the coating effect. In this embodiment, the heating element is an electric heating element, such as a resistance wire, a heating tube, a ceramic heating sheet, etc. It should be noted that Figure 9 As a schematic diagram of the coating driving component 42 driving the coating roller 41, it can also be a schematic diagram of the first driving component, the second driving component and the third driving component respectively corresponding to the cooling roller 61, the unwinding shaft 71 and the guide roller 72.

[0089] Optionally, in some embodiments, as shown in Figures 1 to 8 As shown, the impregnation mechanism 5 comprises a heating box 51 and a heating component 52. The heating box 51 is provided with a first opening 53 on one side and a second opening 54 on the other side. The first opening 53 and the second opening 54 are oppositely arranged. The heating component 52 is arranged on the inner wall of the heating box 51. The fiber cloth after coating resin enters the heating box 51 from the first opening 53. Under the action of the heating component 52, the resin is fully infiltrated into the fiber cloth, and then is sent out from the second opening 54. The resin is fully infiltrated into the fiber cloth under the heating action of the heating component 52, which enhances the bonding force between the fiber and the resin and significantly improves the mechanical properties of the prepreg. The heating component 52 is an infrared heating element, such as an infrared lamp, an infrared heating plate or an infrared heating tube, etc. The infrared heating element has the characteristics of fast heating speed, high thermal efficiency and strong penetration, which can heat the inside and surface of the fiber cloth at the same time, improve the heating effect and uniformity, and has less heat radiation loss to the environment, which is beneficial to energy saving.

[0090] Optionally, in some embodiments, as shown in Figures 1 to 8As shown, the side of the heating box 51 is provided with an access hole, and the access hole is provided with a detection door which is hinged to the box body of the heating box 51 through a hinge, and the detection door is used to open or close the access hole. The access hole and the detection door facilitate the maintenance and repair of the impregnation mechanism 5, reduce the influence of equipment failure on production, and prolong the service life of the equipment.

[0091] Optionally, in some embodiments, as shown in the figure, Figures 1 to 8 As shown, the cooling mechanism 6 includes a first driving component, a cooling roller 61 and a cooling pipeline 62. The cooling roller 61 is connected to the first driving component through a chain wheel transmission. The first driving component is a motor, and is used to drive the cooling roller 61 to rotate. The rotating cooling roller 61 can continuously cool the fiber cloth, improving the production efficiency. The cooling pipeline 62 is arranged around the inner wall of the cooling roller 61. The cooling pipeline 62 is used to flow ice water. The impregnated fiber cloth is cooled by the circulation of the ice water, so that the resin is solidified and shaped, ensuring the shape and performance stability of the prepreg fiber cloth. In this embodiment, the ice water is pumped into the cooling pipeline 62 by a water pump.

[0092] Specifically, in the solvent-free fiber cloth prepreg device in this embodiment, as shown in the figure, Figures 1 to 8As shown, in operation, the heating mechanism 2 is started, the coating roller 41 is heated by the heating mechanism 2, so that the temperature of the coating roller 41 is increased, and since the coating roller 41 is arranged below the shelf 31, the heated coating roller 41 transmits heat to the solid resin upward, the solid resin is heated to a molten state, and the resin in the molten state flows out of the gap of the shelf 31 and drops on the coating roller 41; and the heated coating roller 41 can continuously heat the resin, maintain good fluidity of the resin, and further ensure the coating effect. Then the fiber cloth is slowly unwound by the unwinding mechanism 1, when the fiber cloth passes through the coating mechanism 4, the coating driving part 42 drives the coating roller 41 to rotate, and the molten resin is uniformly coated on the surface of the fiber cloth; then the fiber cloth after coating the resin enters the first opening 53 of the heating box 51 of the impregnation mechanism 5, the heating part in the heating box 51 heats the fiber cloth, so that the resin is fully impregnated into the fiber cloth, and then is sent out from the second opening 54; then the impregnated fiber cloth enters the cooling mechanism 6, the first driving part drives the cooling roller 61 to rotate, and the ice water in the cooling pipeline 62 in the cooling roller 61 cools the fiber cloth, so that the resin is solidified and shaped; the cooled fiber cloth enters the film coating mechanism 7, the second driving part drives the unwinding shaft 71 to rotate, and the plastic film is unwound, the plastic film is guided by the guide roller 72 and adheres to the fiber cloth at the pressing roller 73, the pressing roller 73 applies pressure to the fiber cloth and the plastic film, the pressure makes the plastic film closely contact with the fiber cloth, and air between the two is removed, so that the plastic film can better adhere to the surface of the fiber cloth; finally, the coated prepreg fiber cloth is wound by the winding mechanism 8, and the whole prepreg processing process is completed. Compared with the traditional fiber cloth prepreg using solution impregnation method, the solvent-free fiber cloth prepreg device in the embodiment uses solvent-free technology, avoids the use of a large amount of solvent, eliminates air pollution caused by solvent volatilization, reduces safety risks, and is environmentally friendly and safe; at the same time, without complex solvent recovery equipment, the production cost is reduced. Through the synergistic effect of each mechanism, the molten resin fully impregnates and solidifies the fiber cloth, effectively avoids the influence of incomplete solvent removal on the mechanical properties of the prepreg, reduces the generation of pores and voids, significantly improves the interfacial bonding performance of the fiber and the matrix, improves the strength and quality of the prepreg fiber cloth, and improves the production efficiency.

[0093] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of the present application, they should not limit the patent protection scope of the present application. Any technical solutions obtained by replacing or modifying the equivalent structures or equivalent processes based on the essential concept of the present application, using the contents described in the specification and drawings of the present application, and directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are all included in the patent protection scope of the present application.

Claims

1. A solventless fiber cloth pre-impregnation device characterized by, The device comprises: a winding-off mechanism; a heating mechanism for heating solid resin into a molten state; a placing mechanism for placing resin, and the resin in a molten state can flow out of the placing mechanism; a coating mechanism arranged below the placing mechanism, the heating mechanism is arranged in the coating mechanism, the winding-off mechanism is used for winding off fiber cloth and transmitting the fiber cloth to the coating mechanism, and the coating mechanism is used for uniformly coating the resin in a molten state on the surface of the fiber cloth; an impregnating mechanism arranged on one side of the coating mechanism, the impregnating mechanism is used for sufficiently impregnating the resin into the inside of the fiber cloth; a cooling mechanism arranged on one side of the impregnating mechanism, the cooling mechanism is used for cooling the impregnated fiber cloth to solidify and shape the resin; and a winding mechanism arranged on one side of the cooling mechanism, the winding mechanism is used for winding the pre-impregnated fiber cloth after cooling and solidification.

2. The solventless fiber cloth pre-impregnation device of claim 1, wherein: The solvent-free fiber cloth pre-impregnation device further comprises a film covering mechanism arranged between the cooling mechanism and the winding mechanism, and the film covering mechanism is used for attaching a plastic film to the surface of the fiber cloth.

3. The solventless fiber veil prepping apparatus of claim 1 or 2, wherein: The placing mechanism comprises a placing rack, the placing rack is detachably arranged, the placing rack is arranged above the coating mechanism, and the placing rack is provided with a gap for the resin in a molten state to flow out.

4. The solventless fiber veil prepping apparatus of claim 3, wherein: The placing rack is provided with a grid, and the grid is provided with a grid-shaped gap.

5. The apparatus for pre-impregnating a fibrous cloth without solvent according to claim 3, characterized in that: The placing mechanism further comprises a fixing rack, the fixing rack is fixedly arranged, the placing rack is arranged on the fixing rack, and the placing rack and the fixing rack are detachably connected.

6. The solventless fiber veil prepping apparatus of claim 1 or 2, wherein: The coating mechanism comprises a coating driving component and at least two coating rollers, the at least two coating rollers are respectively arranged on a horizontal plane, the at least two coating rollers are respectively in transmission connection with the coating driving component, and the coating driving component is used for driving the coating rollers to rotate. The heating mechanism is a heating element, and the heating element is arranged in the coating roller.

7. The solventless fiber veil prepping apparatus of claim 1 or 2, wherein: The impregnating mechanism comprises a heating box and a heating component, one side of the heating box is provided with a first opening, the other side of the heating box is provided with a second opening, the first opening and the second opening are oppositely arranged, and the heating component is arranged on the inner wall of the heating box.

8. The solventless fiber veil prepping apparatus of claim 7, wherein: A maintenance opening is arranged on the side of the heating box, a detection door is arranged on the maintenance opening, the detection door is hinged to the heating box, and the detection door is used for opening or closing the maintenance opening.

9. The solventless fiber veil prepping apparatus of claim 1 or 2, wherein: The cooling mechanism comprises a first driving component, a cooling roller and a cooling pipeline, the cooling roller is in transmission connection with the first driving component, the first driving component is used for driving the cooling roller to rotate, and the cooling pipeline is arranged on the inner wall of the cooling roller.

10. The solventless fiber veil prepping apparatus of claim 2, wherein: The film covering mechanism comprises a winding-off shaft, at least two guide rollers, a pressing roller, a second driving component and a third driving component; the second driving component is in transmission connection with the winding-off shaft, the second driving component is used for driving the winding-off shaft to rotate, and the winding-off shaft is used for placing a plastic film roll; At least two of the guide rollers are arranged at intervals, the pressing roller is arranged on one side of the guide rollers, the third driving component is in transmission connection with the guide rollers, and the third driving component is used for driving the guide rollers to rotate.

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