Thermoplastic resin composite material fiber bundle continuous laying forming device

Abstract

The invention provides a thermoplastic resin composite material fiber bundle continuous laying forming device, and belongs to the technical field of composite material fiber bundle laying equipment.The thermoplastic resin composite material fiber bundle continuous laying forming device comprises a supporting frame, an unwinding unit is connected to the left side wall face of the supporting frame, a traction unit is arranged on one side of the unwinding unit, and a compounding unit is arranged on the other side of the traction unit; the composite unit is correspondingly provided with a compression molding unit, one side of the compression molding unit is provided with a heating unit, two sides of the heating unit are respectively provided with a leveling unit and a cooling unit, and one side of the cooling unit is provided with a laying roller. According to the thermoplastic resin composite material fiber bundle continuous laying forming device, the problem that in the prior art, laying equipment and high-temperature welding are carried out step by step, operation is tedious is solved, the structures of all the parts are used in a matched mode, laying and compositing are integrated, it is guaranteed that fiber tension is uniform, and laying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite fiber bundle laying equipment, in particular to a thermoplastic resin composite fiber bundle continuous laying and molding device. Background Art

[0002] Composite materials based on thermoplastic resins. Commonly used thermoplastic resins include polypropylene, polycarbonate, polyamide and polysulfone. The main reinforcing fibers are short glass fibers, carbon fibers, fabric fibers and other fillers. The fiber volume content is generally about 20% to 30%, and the maximum can reach 40% to 55%. In most cases, the fibers and fillers are randomly arranged without direction. The main reinforcing effect of the fibers is to improve strength and wear resistance, improve the heat resistance and creep resistance of the matrix. Thermoplastic resins reinforced with glass fibers and carbon fibers can increase their tensile strength and flexural modulus by 2 to 6 times, but the impact strength is reduced. It is widely used in the automotive industry, chemical industry, electronics and aviation industry.

[0003] However, when existing thermoplastic resin composite materials and fiber bundles are laid, they need to be laid through external laying equipment and then welded through high-temperature heating. This makes the operation cumbersome on the one hand and the welding time too long on the other hand, resulting in low laying efficiency. Summary of the invention

[0004] To solve the above problems, the present invention discloses a continuous placement and molding device for thermoplastic resin composite fiber bundles, comprising a support frame, a unwinding unit is connected to the left wall of the support frame, a traction unit is arranged on one side of the unwinding unit, a composite unit is arranged on the other side of the traction unit, a pressing and molding unit is arranged corresponding to the composite unit, a heating unit is arranged on one side of the pressing and molding unit, a flattening unit and a cooling unit are respectively arranged on both sides of the heating unit, and a placement roller is arranged on one side of the cooling unit.

[0005] Preferably, the unwinding unit consists of a first unwinding roller and a second unwinding roller, the first unwinding roller and the second unwinding roller are both fixedly connected to the side wall of the support frame by bolts, and the first unwinding roller is arranged above the second unwinding roller.

[0006] Preferably, a guide unit is provided between the first unwinding roller and the traction unit, the guide unit comprises a guide roller, the guide roller is provided at a lower middle position between the first unwinding roller and the traction unit, and the guide roller is fixedly connected to the side wall of the support frame by bolts.

[0007] Preferably, the traction unit comprises a first traction roller and a second traction roller, the first traction roller is arranged on one side of the guide roller, and the second traction roller is arranged on one side of the second unwinding roller.

[0008] Preferably, the composite unit comprises a composite roller, the composite roller is fixedly connected to the support frame by bolts, and the composite roller is arranged in the middle of the traction unit.

[0009] Preferably, the press forming unit comprises a press table and a cylinder assembly, the press table is an I-shaped structure, and the press table and the cylinder assembly are both fixedly connected to the side wall of the support frame, and the press table is arranged below the cylinder assembly.

[0010] Preferably, the cylinder assembly consists of a pushing cylinder and a pressing plate, the output end of the pushing cylinder is connected to the pressing plate, and the position of the pressing plate corresponds to the position of the pressing platform.

[0011] Preferably, the flattening unit comprises a flattening roller, which is fixedly connected to the side wall of the support frame by bolts, and the number of the flattening rollers is two, and the two flattening rollers are symmetrically arranged with respect to each other.

[0012] Preferably, the heating unit includes a heating box, a feed port and a discharge port are respectively provided on both sides of the middle part of the heating box, and a heating component is symmetrically arranged inside the heating box, and the heating component includes a clamping plate and a telescopic cylinder, the output end of the telescopic cylinder is fixedly connected to the clamping plate, and a plurality of heating tubes are arranged inside the clamping plate.

[0013] Preferably, the cooling unit comprises two cooling rollers, and the two cooling rollers are symmetrically connected to the side wall of the support frame by bolts.

[0014] The present invention discloses the following technical effects: (1) The present invention utilizes a push cylinder to push the pressing plate to move longitudinally. At the same time, the corresponding arrangement of the I-shaped pressing table and the pressing plate can realize the pressing and molding of the thermoplastic resin composite fiber bundle. The I-shaped pressing table is fixed on the support frame to offset the thrust brought by the push cylinder and the gravity of the pressing plate, thereby ensuring the stability of the overall structure.

[0015] (2) The present invention arranges telescopic cylinders at the top and bottom of the heating box to drive the upper and lower clamping plates to move relative to each other, thereby ensuring the continuity of the thermoplastic resin composite fiber bundle. At the same time, a plurality of groups of heating tubes are arranged inside the clamping plates to ensure that the surface of the thermoplastic resin composite fiber bundle is heated evenly. The molten thermoplastic resin composite fiber bundle is cooled and solidified by a cooling roller in a water-cooled manner, thereby ensuring the molding of the thermoplastic resin composite fiber bundle.

[0016] (3) The present invention solves the problem of cumbersome operation of the laying equipment and high-temperature welding performed step by step in the prior art through the structural arrangement of the first unwinding roller, the second unwinding roller, the guide roller, the first pulling roller, the second pulling roller and the composite roller, and ensures uniform tension between the thermoplastic resin composite material and the fiber bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure provided by Embodiment 1 of the present invention; Figure 2 A schematic diagram of the heating box structure provided in Example 1 of the present invention; Description of reference numerals: 1-support frame, 2-first unwinding roller, 3-second unwinding roller, 4-guide roller, 5-first traction roller, 6-second traction roller, 7-compound roller, 8-pressing table, 9-pressing plate, 10-pushing cylinder, 11-leveling roller, 12-heating box, 13-cooling roller, 14-laying roller, 15-feeding port, 16-telescopic cylinder, 17-clamping plate, 18-heating tube, 19-discharging port. DETAILED DESCRIPTION

[0018] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Example

[0019] like Figure 1 As shown, the present invention provides a continuous laying and molding device for thermoplastic resin composite fiber bundles, including a support frame 1, a unwinding unit is connected to the left wall of the support frame 1, a traction unit is arranged on one side of the unwinding unit, a composite unit is arranged on the other side of the traction unit, a pressing and molding unit is arranged correspondingly at the composite unit, a heating unit is arranged on one side of the pressing and molding unit, a flattening unit and a cooling unit are arranged on both sides of the heating unit respectively, and a laying roller 14 is arranged on one side of the cooling unit.

[0020] Specifically, the unwinding unit consists of a first unwinding roller 2 and a second unwinding roller 3. The first unwinding roller 2 and the second unwinding roller 3 are both fixedly connected to the side wall of the support frame 1 by bolts, and the first unwinding roller 2 is arranged above the second unwinding roller 3. The first unwinding roller 2 is used to place the fiber bundle, and the second unwinding roller 3 is used to place the thermoplastic resin composite material.

[0021] Specifically, a guide unit is arranged between the first unwinding roller 2 and the traction unit, and the guide unit includes a guide roller 4 for ensuring uniform tension of the fiber bundle. The guide roller 4 is arranged at a lower position in the middle of the first unwinding roller 2 and the traction unit, and the guide roller 4 is fixedly connected to the side wall of the support frame 1 by bolts.

[0022] Specifically, the traction unit includes a first traction roller 5 and a second traction roller 6. The first traction roller 5 is arranged on one side of the guide roller 4, and the second traction roller 6 is arranged on one side of the second unwinding roller 3. The first traction roller 5 is used to pull the fiber bundle onto the composite unit, and the second traction roller 6 is used to pull the thermoplastic resin composite material onto the composite unit.

[0023] Specifically, the composite unit includes a composite roller 7, which is fixedly connected to the support frame 1 by bolts, and the composite roller 7 is arranged in the middle of the traction unit for preliminarily composite the fiber bundle and the thermoplastic resin composite material.

[0024] Specifically, the pressing molding unit includes a pressing table 8 and a cylinder assembly. The pressing table 8 is an I-shaped structure, and the pressing table 8 and the cylinder assembly are both fixedly connected to the side wall of the support frame 1, and the pressing table 8 is arranged below the cylinder assembly.

[0025] More specifically, the cylinder assembly is composed of a pushing cylinder 10 and a pressing plate 9 . The output end of the pushing cylinder 10 is connected to the pressing plate 9 , and the position of the pressing plate 9 corresponds to the position of the pressing platform 8 .

[0026] Specifically, the flattening unit includes a flattening roller 11, which is fixedly connected to the side wall of the support frame 1 by bolts. There are two flattening rollers 11, which are symmetrically arranged with a gap between them for flattening the thermoplastic resin composite fiber bundle after compounding.

[0027] Specifically, the heating unit includes a heating box 12, which has a feed port 15 and a discharge port 19 on both sides of the middle thereof, and a heating component is symmetrically arranged inside the heating box 12, the heating component includes a clamping plate 17 and a telescopic cylinder 16, the output end of the telescopic cylinder 16 is fixedly connected to the clamping plate 17, and a plurality of heating tubes 18 are arranged inside the clamping plate 17.

[0028] Specifically, the cooling unit includes two cooling rollers 13 , which are symmetrically connected to the side wall of the support frame 1 by bolts and are used to cool the melted thermoplastic resin composite fiber bundle.

[0029] Working principle: When in use, the fiber bundle on the first unwinding roller 2 is guided by the guide roller 4 to the first traction roller 5, and the thermoplastic resin composite material on the second unwinding roller 3 is conveyed to the second traction roller 6. The fiber bundle on the first traction roller 5 and the thermoplastic resin composite material on the second traction roller 6 are simultaneously pulled to the composite roller 7, preliminarily compounded on the composite roller 7, and then conveyed to the pressing table 8 through the composite roller 7. At this time, the pushing cylinder 10 is started to push the pressing plate 9 to the pressing table 8 for pressing and molding, and then enters the leveling roller 11 for leveling. The feed port 15 on the left side of the heating box 12 enters the interior of the heating component, and the symmetrically arranged telescopic cylinders 16 are running. The two clamping plates 17 clamp the thermoplastic resin composite fiber bundle, and the external control device controls the heating tube 18 for heating and melting. After melting, it is water-cooled at the cooling roller 13 through the discharge port 19. After cooling, it is laid through the laying roller 14.

[0030] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims

1. Continuous laying and molding device for thermoplastic resin composite fiber bundles, It is characterized in that The invention comprises a support frame (1), wherein a reeling unit is connected to the left wall surface of the support frame (1), a traction unit is arranged on one side of the reeling unit, a compound unit is arranged on the other side of the traction unit, a pressing unit is arranged corresponding to the compound unit, a heating unit is arranged on one side of the pressing unit, a flattening unit and a cooling unit are arranged on both sides of the heating unit, and a laying roller (14) is arranged on one side of the cooling unit.

2. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 1, It is characterized in that The unwinding unit is composed of a first unwinding roller (2) and a second unwinding roller (3); the first unwinding roller (2) and the second unwinding roller (3) are both fixedly connected to the side wall of the support frame (1) by bolts, and the first unwinding roller (2) is arranged above the second unwinding roller (3).

3. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 2, It is characterized in that A guide unit is provided between the first unwinding roller (2) and the traction unit, the guide unit comprising a guide roller (4), the guide roller (4) being provided at a position below the middle of the first unwinding roller (2) and the traction unit, and the guide roller (4) being fixedly connected to the side wall of the support frame (1) by means of bolts.

4. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 3, It is characterized in that The traction unit comprises a first traction roller (5) and a second traction roller (6), wherein the first traction roller (5) is arranged on one side of the guide roller (4), and the second traction roller (6) is arranged on one side of the second unwinding roller (3).

5. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 1, It is characterized in that The composite unit comprises a composite roller (7), the composite roller (7) being fixedly connected to the support frame (1) by means of bolts, and the composite roller (1) being arranged in the middle of the traction unit.

6. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 1, It is characterized in that The press forming unit comprises a press table (8) and a cylinder assembly, the press table (8) being an I-shaped structure, and the press table (8) and the cylinder assembly are both fixedly connected to the side wall of the support frame (1), and the press table (8) is arranged below the cylinder assembly.

7. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 6, It is characterized in that The cylinder assembly consists of a pushing cylinder (10) and a pressing plate (9); the output end of the pushing cylinder (10) is connected to the pressing plate (9); the position of the pressing plate (9) corresponds to the position of the pressing platform (8).

8. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 1, It is characterized in that The flattening unit comprises a flattening roller (11), wherein the flattening roller (11) is fixedly connected to the side wall of the support frame (1) by means of bolts, and the number of the flattening rollers (11) is two, and the two flattening rollers (11) are symmetrically arranged above and below each other.

9. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 1, It is characterized in that The heating unit comprises a heating box (12), a feeding port (15) and a discharging port (19) are respectively provided on both sides of a middle portion of the heating box (12), and a heating component is symmetrically arranged inside the heating box (12), the heating component comprises a clamping plate (17) and a telescopic cylinder (16), the output end of the telescopic cylinder (16) is fixedly connected to the clamping plate (17), and a plurality of heating tubes (18) are arranged inside the clamping plate (17).

10. The thermoplastic resin composite fiber bundle continuous placement molding device according to claim 1, It is characterized in that The cooling unit comprises a cooling roller (13), the number of the cooling rollers (13) being two, and the two cooling rollers (13) being symmetrically connected to the side wall of the support frame (1) via bolts.

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