Plastic-wood forming apparatus

Abstract

This utility model discloses a wood-plastic composite molding equipment, belonging to the field of wood-plastic composite processing technology. It includes a single-screw main extruder, a single-screw co-extruder A, a single-screw co-extruder B, and a die. The output end of the single-screw main extruder is fixedly connected to the die, the output end of the single-screw co-extruder A is fixedly connected to the die, and the output end of the single-screw co-extruder B is fixedly connected to the die. A main flow channel is provided inside the die, and the output end of the single-screw main extruder communicates with the main flow channel. A film flow channel is also provided inside the die. In this utility model, the single-screw main extruder extrudes recycled wood-plastic composite material, which enters the main flow channel to form the wood-plastic composite body. The single-screw co-extruder B extrudes AS+glass fiber reinforced material, which enters the core material flow channel to form the wood-plastic composite core. The single-screw co-extruder A extrudes ASA, which enters the film flow channel and adheres to the outermost layer of the wood-plastic composite.

Description

Technical Field

[0001] This utility model relates to a wood-plastic composite molding equipment, belonging to the field of wood-plastic composite processing technology. Background Technology

[0002] Wood-plastic composite (WPC) is a new type of environmentally friendly material made by mixing a plastic matrix (polyethylene, polypropylene, etc.) with wood fibers (wood flour, straw, etc.). It combines the characteristics of both wood and plastic and is widely used in outdoor building materials, home furnishings and engineering fields.

[0003] Currently, the only way to increase the strength of wood-plastic composite products on the market is to fill the hollow parts of the product with cement or insert steel structural components. However, this approach has significant drawbacks. The products need to be processed multiple times, which greatly increases their weight, placing an additional burden on the building structure and increasing product costs.

[0004] This utility model proposes a new solution to the above problems. Utility Model Content

[0005] The main purpose of this utility model is to solve the problem that products need to be processed multiple times, the weight of the processed products will increase significantly, which will bring additional burden to the building structure and increase the product cost. Therefore, a wood-plastic composite molding equipment is provided.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A wood-plastic composite molding equipment includes a single-screw main extruder, a single-screw co-extruder A, a single-screw co-extruder B, and a die head. The output end of the single-screw main extruder is fixedly connected to the die head, the output end of the single-screw co-extruder A is fixedly connected to the die head, and the output end of the single-screw co-extruder B is fixedly connected to the die head.

[0008] Preferably, the die head has a main channel inside, and the output end of the single-screw main extruder is connected to the main channel.

[0009] Preferably, the die head has a film flow channel inside, and the output end of the single-screw co-extruder A is connected to the film flow channel.

[0010] Preferably, the die head has a core material flow channel inside, and the output end of the single-screw co-extruder B is connected to the core material flow channel.

[0011] Preferably, the output end of the mold head is provided with a shaping platform, and a forming mold is fixedly connected to the inner bottom wall of the shaping platform.

[0012] Preferably, the output end of the die head is connected to the forming mold, and the forming mold has a splicing flow channel inside.

[0013] Preferably, a cooling water tank is provided on the shaping table, and a forming channel is provided inside the shaping table.

[0014] The beneficial technical effects of this utility model are as follows: The single-screw main extruder extrudes recycled wood-plastic composite material, which enters the main channel to form the wood-plastic composite body. The single-screw co-extruder B extrudes AS+ glass fiber reinforced material, which enters the core material channel to form the wood-plastic composite core material. The single-screw co-extruder A extrudes ASA, which enters the film channel and adheres to the outermost layer of the wood-plastic composite to form a surface film. The wood-plastic composite body, the wood-plastic composite core material, and the film are squeezed together in the splicing channel to form the finished wood-plastic composite product. This one-time molding eliminates the need for post-processing, and the cost of the AS+ glass fiber internal reinforcement material is lower than that of other metal components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the shaping table of a wood-plastic molding equipment according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall structure of a wood-plastic composite molding equipment provided according to this utility model;

[0017] Figure 3 This is a top sectional view of the mold head of a wood-plastic composite molding equipment according to the present invention;

[0018] Figure 4 This is a top view of the molding die of a wood-plastic composite molding equipment provided by this utility model.

[0019] In the diagram: 1. Single-screw main extruder; 2. Single-screw co-extruder A; 3. Single-screw co-extruder B; 4. Die head; 5. Main runner; 6. Film runner; 7. Core runner; 8. Molding die; 9. Splicing runner; 10. Stenter; 11. Molding channel; 12. Cooling water tank. Detailed Implementation

[0020] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0021] like Figures 1-4As shown in this embodiment, a wood-plastic composite molding equipment includes a single-screw main extruder 1, a single-screw co-extruder A2, a single-screw co-extruder B3, and a die head 4. The output end of the single-screw main extruder 1 is fixedly connected to the die head 4, the output end of the single-screw co-extruder A2 is fixedly connected to the die head 4, and the output end of the single-screw co-extruder B3 is fixedly connected to the die head 4. A main flow channel 5 is provided inside the die head 4, and the output end of the single-screw main extruder 1 communicates with the main flow channel 5. A film flow channel 6 is provided inside the die head 4, and the output end of the single-screw co-extruder A2 communicates with the film flow channel 6. A core material flow channel 7 is provided inside the die head 4, and the output end of the single-screw co-extruder B3 communicates with the core material flow channel 7. The process is as follows: the single-screw main extruder 1 extrudes recycled wood-plastic material, which enters the main channel 5 to form the wood-plastic composite body. The single-screw co-extruder B3 extrudes AS+ glass fiber reinforced material (AS+ glass fiber internal reinforcement material has strong thermoplasticity, so the cross-section of the reinforcement part can be designed into various complex cross-sectional structures, unlike metal structural parts, which are usually simple and have a single shape. At the same time, the wood-plastic products to be produced need to be designed according to the shape of the metal structural parts, and the product cross-section will have certain limitations). The AS+ glass fiber reinforced material enters the core material channel 7 to form the wood-plastic composite core material. The single-screw co-extruder A2 extrudes ASA (Acrylonitrile Styrene Acrylate), which enters the film channel 6 and adheres to the outermost layer of the wood-plastic composite to form a surface film.

[0022] In this embodiment, as Figures 1-4 As shown, a shaping platform 10 is provided at the output end of the mold head 4. A forming mold 8 is fixedly connected to the inner bottom wall of the shaping platform 10. The output end of the mold head 4 is connected to the forming mold 8. A splicing flow channel 9 is provided inside the forming mold 8. A cooling water tank 12 is provided on the shaping platform 10. A forming channel 11 is provided inside the shaping platform 10. The wood-plastic composite body, wood-plastic composite core material and film are squeezed together inside the splicing flow channel 9 to form a finished wood-plastic composite product. The finished wood-plastic composite product enters the forming channel 11. When it passes through the cooling water tank 12, the cooling water tank 12 cools down the finished wood-plastic composite product, thereby cooling and shaping the finished wood-plastic composite product. Then the finished wood-plastic composite product is cut.

[0023] In this embodiment, as Figures 1-4 As shown, the working principle of the wood-plastic composite molding equipment provided in this embodiment is as follows:

[0024] The single-screw main extruder 1 extrudes recycled wood-plastic material, which enters the main flow channel 5 to form the wood-plastic body. The single-screw co-extruder B3 extrudes AS+ glass fiber reinforced material, which enters the core material flow channel 7 to form the wood-plastic core. The single-screw co-extruder A2 extrudes ASA, which enters the film flow channel 6 and adheres to the outermost layer of the wood-plastic to form a surface film. The wood-plastic body, the wood-plastic core, and the film are squeezed together in the splicing flow channel 9 to form the finished wood-plastic product. The finished wood-plastic product enters the forming channel 11 and passes through the cooling water tank 12, which cools the finished wood-plastic product, thereby cooling and shaping it. Then, the finished wood-plastic product is cut.

[0025] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A wood-plastic composite molding equipment, comprising a single-screw main extruder (1), a single-screw co-extruder A (2), a single-screw co-extruder B (3), and a die head (4), characterized in that, The output end of the single-screw main extruder (1) is fixedly connected to the die head (4), the output end of the single-screw co-extruder A (2) is fixedly connected to the die head (4), the output end of the single-screw co-extruder B (3) is fixedly connected to the die head (4), the die head (4) is provided with a main channel (5), the output end of the single-screw main extruder (1) is connected to the main channel (5), the die head (4) is provided with a film channel (6), the output end of the single-screw co-extruder A (2) is connected to the film channel (6), the die head (4) is provided with a core material channel (7), and the output end of the single-screw co-extruder B (3) is connected to the core material channel (7).

2. The wood-plastic composite molding equipment as described in claim 1, characterized in that, The output end of the mold head (4) is provided with a shaping platform (10), and the inner bottom wall of the shaping platform (10) is fixedly connected with a forming mold (8).

3. The wood-plastic composite molding equipment as described in claim 2, characterized in that, The output end of the mold head (4) is connected to the molding mold (8), and the molding mold (8) is provided with a splicing flow channel (9).

4. The wood-plastic composite molding equipment as described in claim 3, characterized in that, A cooling water tank (12) is provided on the shaping table (10), and a forming channel (11) is provided inside the shaping table (10).

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