Fiber adhesive applying and hot pressing structure of one-way prepreg tape machine

Abstract

The utility model discloses a unidirectional prepreg tape machine fiber adhesive hot-pressing structure which comprises an upper hot-pressing die and a lower hot-pressing die, the bottom of the upper hot-pressing die is provided with an upper hot-pressing molding surface, the top of the lower hot-pressing die is provided with a lower hot-pressing molding surface, and a hot-pressing cavity is formed between the upper hot-pressing molding surface and the lower hot-pressing molding surface. The upper hot-pressing die and the lower hot-pressing die are rotationally connected at the feeding end, a rotary opening and closing device is arranged between the upper hot-pressing die and the lower hot-pressing die, and the rotary opening and closing device controls the upper hot-pressing die and the lower hot-pressing die to rotate around the rotary connecting position to be away from or close to the discharging end. In the process, observation and treatment in the machine testing and discharging process can be carried out, the upper hot-pressing mold and the lower hot-pressing mold are integrally formed, and the device is suitable for prepreg tapes matched with the prepreg tapes in shape and has the advantage of being convenient to use.

Description

Technical Field

[0001] The utility model relates to a hot pressing structure, in particular to a unidirectional prepreg machine fiber glue coating hot pressing structure. Background Art

[0002] Prepreg tapes have the advantages of high strength ratio, high wear resistance, good fatigue resistance and vibration damping, and good processability. These advantages are of great value to improving the performance of aerospace or transportation vehicles. At the same time, the use of composite materials is also increasing in other industries such as sports equipment, ships, high-speed rail, etc.

[0003] In the prior art, the Chinese utility model patent with application number "CN202022235970.3" applied by Changzhou Beveler Machinery Co., Ltd. discloses a prepreg tape discharge mold, and discloses a mold for embedding to form multi-curved hot pressing molding. According to the actual composite materials, the contact area in the composite process is improved, thereby improving the quality of the composite board. When actually targeting the same material, when producing glass fiber composite sheets, a better curved surface curvature is tested, so an one-piece molding and easy-to-use hot pressing structure is needed. Utility Model Content

[0004] The utility model aims to provide a unidirectional prepreg machine fiber glue coating hot pressing structure, which has the advantages of integrated molding and convenient use.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a unidirectional prepreg machine fiber glue coating hot pressing structure, comprising an upper hot pressing mold and a lower hot pressing mold, the bottom of the upper hot pressing mold is provided with an upper hot pressing molding surface, the top of the lower hot pressing mold is provided with a lower hot pressing molding surface, a hot pressing cavity is formed between the upper hot pressing molding surface and the lower hot pressing molding surface, one end of the hot pressing cavity in the length direction is the feeding end, and the other end of the hot pressing cavity in the length direction is the discharging end, the upper hot pressing mold and the lower hot pressing mold are rotatably connected at the feeding end position, and a rotating opening and closing device is provided between the upper hot pressing mold and the lower hot pressing mold, and the rotating opening and closing device controls the upper hot pressing mold and the lower hot pressing mold to rotate around the rotating connection position away from and close to the discharging end.

[0006] Preferably, the top of the upper hot pressing mold is connected to a rotating plate, the bottom of the lower hot pressing mold is connected to a fixed plate, and the fixed plate is connected to a frame.

[0007] By adopting the above technical solution, the rotating plate and the fixed plate play the role of connecting the upper hot pressing mold and the lower hot pressing mold.

[0008] Preferably, the rotating plate is provided with upper hinge seats on both sides of the width direction of the feed end, and the fixed plate is provided with lower hinge seats on both sides of the width direction of the feed end, and the upper hinge seats are rotatably connected to the lower hinge seats.

[0009] By adopting the above technical solution, the rotation between the rotating plate and the fixed plate is achieved through the upper and lower hinge seats, and the hinge seats have a larger opening angle when opening and closing.

[0010] Preferably, the rotary opening and closing device includes an upper rotating seat, a lower rotating seat and a linear reciprocating executing unit, the fixed end of the linear reciprocating executing unit is rotatably connected to the lower rotating seat, the lower rotating seat is fixedly connected to the frame, the upper rotating seat is fixedly connected to the rotating plate, the upper rotating seat is rotatably connected to the action end of the linear reciprocating executing unit, and the rotary opening and closing device is respectively arranged on both sides of the lower hot pressing mold in the width direction of the discharge end.

[0011] By adopting the above technical solution, the linear reciprocating actuator can also play a role in maintaining pressure when closing downward.

[0012] Preferably, the linear reciprocating actuator is a pneumatic cylinder or an oil cylinder.

[0013] Preferably, the upper hot pressing forming surface and the lower hot pressing forming surface are curved surfaces.

[0014] By adopting the above technical solution, the contact area with the sheet material is increased.

[0015] Preferably, the upper hot-pressing forming surface and the lower hot-pressing forming surface each have at least four undulating sections.

[0016] By adopting the above technical solution, the molding effect of the prepreg tape is improved.

[0017] Preferably, the upper hot pressing mold and the lower hot pressing mold each include a left plate, a heating plate and a right plate, and a heating channel is provided through the left plate, the heating plate and the right plate.

[0018] By adopting the above technical solution, the heating channel realizes heating of the heating plate, and the left plate and the right plate play a sealing role on both sides of the heating plate, and also play a role of connecting with the rotating plate and the fixed plate.

[0019] Preferably, the heating channel is for heat transfer medium to flow.

[0020] By adopting the above technical solution, heating is performed by heat transfer oil.

[0021] Preferably, a heating component is provided in the heating channel.

[0022] By adopting the above technical solution, heating is performed by using the electric heating wire.

[0023] To summarize, the upper hot pressing mold and one side of the lower hot pressing mold are rotated by opening the rotary opening and closing device, which is convenient for the pre-production fiber discharge through the hot pressing structure, and then closed by the rotary opening and closing device, so that it rotates around the rotating connection position close to the discharge end. In this process, observation and processing during the trial machine and discharge process can be carried out. The upper hot pressing mold and the lower hot pressing mold are integrally formed, which is suitable for prepreg tapes that match the shape, and has the advantage of being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the embodiment in a closed state;

[0025] Figure 2 is a side view of an embodiment;

[0026] Figure 3 is a schematic diagram of the structure of the embodiment in an open state;

[0027] Figure 4 yes Figure 3 An enlarged schematic diagram of part A is shown;

[0028] Figure 5 yes Figure 3 The enlarged schematic diagram of part B is shown;

[0029] In the figure, 11, upper hot pressing mold; 12, upper hot pressing forming surface; 13, rotating plate; 14, lower hot pressing mold; 15, lower hot pressing forming surface; 16, fixed plate; 17, frame; 2, hot pressing chamber; 21, feed end; 22, discharge end; 23, undulating section; 3, rotating opening and closing device; 31, upper articulated seat; 32, lower articulated seat; 33, upper rotating seat; 34, lower rotating seat; 35, linear reciprocating execution unit; 41, left side plate; 42, heating plate; 43, right side plate; 44, heating channel. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0032] Example:

[0033] like Figures 1 to 5As shown, a unidirectional prepreg machine fiber glue coating hot pressing structure is used for hot pressing and compounding glass fibers coated with hot glue, comprising an upper hot pressing mold 11 and a lower hot pressing mold 14, wherein the bottom of the upper hot pressing mold 11 is provided with an upper hot pressing molding surface 12, and the top of the lower hot pressing mold 14 is provided with a lower hot pressing molding surface 15, wherein the upper hot pressing molding surface 12 and the lower hot pressing molding surface 15 are curved surfaces, and the specific curved surface structure is that the upper hot pressing molding surface 12 and the lower hot pressing molding surface 15 both have at least four undulating sections 23, and the undulating sections 23 are at They cooperate with each other in the height direction. At the same time, in this embodiment, four undulating sections 23 are arranged, and the curvature change of the undulating section 23 is optimized in the utility model patent with application number "CN202022235970.3". A hot pressing cavity 2 is formed between the upper hot pressing molding surface 12 and the lower hot pressing molding surface 15. One end of the hot pressing cavity 2 in the length direction is the feed end 21, and the other end of the hot pressing cavity 2 in the length direction is the discharge end 22. The feed end 21 is for the glass fiber bundle after the adhesive is attached to enter, and the discharge end 22 is for the composited sheet to leave.

[0034] In order to facilitate the opening of the feed end 21 and further facilitate the discharge of materials, the upper hot pressing mold 11 and the lower hot pressing mold 14 are rotatably connected at the feed end 21, and a rotary opening and closing device 3 is arranged between the upper hot pressing mold 11 and the lower hot pressing mold 14. The rotary opening and closing device 3 controls the upper hot pressing mold 11 and the lower hot pressing mold 14 to rotate around the rotary connection position away from and close to the discharge end 22.

[0035] like Figure 3 and Figure 4 As shown, the upper hot pressing mold 11 and the lower hot pressing mold 14 both include a left plate 41, a heating plate 42 and a right plate 43. A heating channel 44 is arranged between the left plate 41, the heating plate 42 and the right plate 43. A plurality of heating channels 44 are arranged in the heating plate 42. The left plate 41 and the right plate 43 serve to seal both ends of the heating channel 44. The heating channel 44 has two setting modes. The first heating channel 44 is for the heat transfer medium to flow, that is, the heat transfer oil is heated externally and then enters the heating channel 44. The second is that a heating component is arranged in the heating channel 44. The heating component is an electric heating wire. The electric heating wire is inserted into the heating channel 44 to heat the mold.

[0036] like Figures 1 to 5As shown, in order to fix and connect the upper hot pressing mold 11 and the lower hot pressing mold 14, the top of the upper hot pressing mold 11 is connected to a rotating plate 13, the bottom of the lower hot pressing mold 14 is connected to a fixed plate 16, the bottom of the fixed plate 16 is connected to the frame 17, the rotating plate 13 is provided with upper hinge seats 31 on both sides of the width direction of the feed end 21, the fixed plate 16 is provided with lower hinge seats 32 on both sides of the width direction of the feed end 21, the upper hinge seat 31 is rotatably connected with the lower hinge seat 32, and the rotary opening and closing device 3 includes an upper rotating seat 33 and a lower rotating seat 34. 4 and a linear reciprocating actuator unit 35, the fixed end lower rotating seat 34 of the linear reciprocating actuator unit 35 is rotatably connected, the lower rotating seat 34 is fixedly connected to the frame 17, the upper rotating seat 33 is fixedly connected to the rotating plate 13, the upper rotating seat 33 is rotatably connected to the action end of the linear reciprocating actuator unit 35, the rotary opening and closing devices 3 are respectively arranged on both sides of the lower hot pressing mold 14 in the width direction of the discharge end 22, the linear reciprocating actuator unit 35 is a cylinder or an oil cylinder, and the linear reciprocating actuator unit 35 is arranged on both sides of the width direction of the frame 17.

[0037] Working principle:

[0038] The linear reciprocating actuator 35 is actuated to control the upper hot pressing mold 11 to rotate around the feed end 21, open the hot pressing chamber 2, and then adjust the sheet with fibers attached in the hot pressing chamber 2, and manually pull it to the rear. Then the linear reciprocating actuator 35 is actuated to rotate the upper hot pressing mold 11 downward around the feed end 21, and close the hot pressing chamber 2. During the process, the heating channel 44 heats the hot pressing chamber 2.

Claims

1. A unidirectional prepreg machine fiber glue coating hot pressing structure, characterized in that: The invention comprises an upper hot pressing mold (11) and a lower hot pressing mold (14); an upper hot pressing molding surface (12) is arranged at the bottom of the upper hot pressing mold (11); a lower hot pressing molding surface (15) is arranged at the top of the lower hot pressing mold (14); a hot pressing cavity (2) is formed between the upper hot pressing molding surface (12) and the lower hot pressing molding surface (15); one end of the hot pressing cavity (2) in the length direction is a feed end (21); the other end of the hot pressing cavity (2) in the length direction is a discharge end (22); the upper hot pressing mold (11) and the lower hot pressing mold (14) are rotatably connected at the feed end (21); a rotary opening and closing device (3) is arranged between the upper hot pressing mold (11) and the lower hot pressing mold (14); the rotary opening and closing device (3) controls the upper hot pressing mold (11) and the lower hot pressing mold (14) to rotate around the rotary connection position to move away from and approach the discharge end (22).

2. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 1 is characterized in that: The top of the upper hot pressing mold (11) is connected to a rotating plate (13), the bottom of the lower hot pressing mold (14) is connected to a fixing plate (16), and the fixing plate (16) is connected to a frame (17).

3. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 2 is characterized in that: The rotating plate (13) is provided with upper hinge seats (31) on both sides of the feed end (21) in the width direction, and the fixed plate (16) is provided with lower hinge seats (32) on both sides of the feed end (21) in the width direction, and the upper hinge seats (31) are rotatably connected to the lower hinge seats (32).

4. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 2 is characterized in that: The rotary opening and closing device (3) comprises an upper rotating seat (33), a lower rotating seat (34) and a linear reciprocating actuator (35); the fixed end of the linear reciprocating actuator (35) is rotatably connected to the lower rotating seat (34); the lower rotating seat (34) is fixedly connected to the frame (17); the upper rotating seat (33) is fixedly connected to the rotating plate (13); the upper rotating seat (33) is rotatably connected to the action end of the linear reciprocating actuator (35); and the rotary opening and closing device (3) is respectively arranged on both sides of the lower hot pressing mold (14) in the width direction of the discharge end (22).

5. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 4 is characterized in that: The linear reciprocating execution unit (35) is a pneumatic cylinder or an oil cylinder.

6. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 1 is characterized in that: The upper hot pressing forming surface (12) and the lower hot pressing forming surface (15) are curved surfaces.

7. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 6 is characterized in that: The upper hot pressing forming surface (12) and the lower hot pressing forming surface (15) both have at least four undulating sections (23).

8. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 1 is characterized in that: The upper hot pressing mold (11) and the lower hot pressing mold (14) both comprise a left side plate (41), a heating plate (42) and a right side plate (43), and a heating channel (44) is provided between the left side plate (41), the heating plate (42) and the right side plate (43).

9. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 8 is characterized in that: The heating channel (44) is used for the flow of heat-conducting medium.

10. The unidirectional prepreg machine fiber glue coating hot pressing structure according to claim 8, characterized in that: A heating component is arranged in the heating channel (44).

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