Polyvinyl chloride co-extrusion device

Abstract

The utility model discloses a polyvinyl chloride co-extrusion device which comprises a machine frame, a material mixing box is arranged at the top of the machine frame, discharging boxes are arranged on the two sides of the top of the material mixing box, and a filtering structure is arranged in the material mixing box. A co-extrusion device is arranged below the mixing box, a feeding pipe is arranged on the co-extrusion device, and a first blowing structure is arranged on one side of the feeding pipe; a discharging pipe is arranged on the other side of the co-extrusion device, and a second blowing structure is arranged on the periphery of the discharging pipe. The filtering structure arranged in the mixing box comprises the partition plate, the first filter screen and the second filter screen, so that raw materials can be effectively filtered and mixed, the uniformity of the polyvinyl chloride raw materials is ensured, and the quality of a final product is improved; dust of the raw materials can be preliminarily blown away through the first blowing structure; the raw materials can be efficiently extruded through the co-extrusion device; and finally, dust of the co-extruded materials can be effectively blown away through the second blowing structure.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC processing equipment, and particularly relates to a PVC co-extrusion device. Background Art

[0002] PVC, namely polyvinyl chloride, is a polymer polymerized by free radical polymerization mechanism under the action of initiators such as peroxides and azo compounds; or under the action of light and heat. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively called vinyl chloride resins.

[0003] In the existing PVC co-extrusion equipment, a single screw is generally used for extrusion, resulting in poor co-extrusion effect of PVC; and due to the existence of some particles of different sizes in the raw materials, it will affect the later co-extrusion work, reduce the effect of the co-extrusion equipment, and it is not convenient to screen the raw materials in the co-extrusion equipment; during production, a large amount of dust will be generated after discharging, and the cleanliness of the co-extruded material is poor. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a PVC co-extrusion device to solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A PVC co-extrusion device includes a frame. A mixing box is arranged at the top of the frame. Feeding boxes are arranged on both sides of the top of the mixing box. A filtering structure is arranged in the mixing box; A co-extrusion device is arranged below the mixing box. A feeding pipe is arranged on the co-extrusion device. A first air blowing structure is arranged on one side of the feeding pipe; A discharging pipe is arranged on the other side of the co-extrusion device. A second air blowing structure is arranged on the outer periphery of the discharging pipe.

[0006] On the basis of the above scheme and as the preferred scheme of the above scheme: The filtering structure includes a partition plate which is horizontally arranged in the mixing box. A first filter screen is arranged on one side of the partition plate, and a second filter screen is arranged on the other side.

[0007] On the basis of the above scheme and as the preferred scheme of the above scheme: The co-extrusion device includes a co-extrusion box. A first rotating shaft and a second rotating shaft are arranged in the co-extrusion box. A first pushing knife and a second pushing knife are respectively arranged on the first rotating shaft and the second rotating shaft. A first motor and a second motor are respectively arranged on one side of the first rotating shaft and the second rotating shaft.

[0008] On the basis of the above scheme and as the preferred scheme of the above scheme: A support frame is arranged at the bottom of the co-extrusion box.

[0009] On the basis of the above scheme and as the preferred scheme of the above scheme: The first air blowing structure includes a fixed frame. A first fan is arranged on the fixed frame. An air inlet pipe is arranged on one side of the first fan; A third filter screen is arranged on one side of the air inlet pipe.

[0010] Based on the above solution and as a preferred solution to the above solution: The second air blowing structure includes a first baffle and a second baffle. A third baffle is provided on one side of the first baffle and the second baffle, and a dust collector is provided on the third baffle. A second fan and a third fan are provided on the first baffle and the second baffle.

[0011] The beneficial effects of the present utility model are as follows: Through the filtering structure provided in the mixing box, including the partition board and the first and second filter meshes, the raw materials can be effectively filtered and mixed, ensuring the uniformity of the polyvinyl chloride raw materials, thereby improving the quality of the final product; Through the first air blowing structure, the dust of the raw materials can be initially blown away; Through the co-extrusion device, the raw materials can be efficiently extruded; Finally, through the second air blowing structure, the dust of the co-extruded materials can be effectively blown away. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the top view of the present utility model;

[0014] Figure 3 is the internal structural diagram of the co-extrusion box in the present utility model;

[0015] Figure 4 is the side view of the feed pipe in the present utility model;

[0016] Figure 5 is the schematic diagram of the second air blowing structure in the present utility model. Detailed Embodiments

[0017] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments. However, the specific embodiments and examples described below are for illustrative purposes only and are not limitations to the present utility model.

[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0019] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0020] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0022] Referring to the attached drawings Figures 1 to 5 , a polyvinyl chloride coextrusion device in this embodiment includes a frame 1. A mixing box 2 is provided at the top of the frame 1. Feeding boxes 3 are provided on both sides of the top of the mixing box 2. A filtering structure is provided inside the mixing box 2; a coextrusion device is provided below the mixing box 2. A feeding pipe 4 is provided on the coextrusion device. A first blowing structure is provided on one side of the feeding pipe 4; a discharging pipe is provided on the other side of the coextrusion device. A second blowing structure is provided on the outer periphery of the discharging pipe.

[0023] Furthermore, the filtering structure includes a partition 30. The partition 30 is horizontally mounted inside the mixing box 2. A first filter screen 20 is provided on one side of the partition 30, and a second filter screen 21 is provided on the other side.

[0024] Furthermore, the coextrusion device includes a coextrusion box 5. A support frame 10 is provided at the bottom of the coextrusion box 5; a first rotating shaft 50 and a second rotating shaft 51 are provided inside the coextrusion box 5. A first pushing knife 52 and a second pushing knife 53 are respectively provided on the first rotating shaft 50 and the second rotating shaft 51. A first motor 54 and a second motor 55 are respectively provided on one side of the first rotating shaft 50 and the second rotating shaft 51.

[0025] Further, the first air blowing structure includes a fixing frame 6, a first fan is provided on the fixing frame 6, and an air inlet pipe 60 is on one side of the first fan; a third filter screen 40 is provided on one side of the air inlet pipe 60.

[0026] Further, the second air blowing structure includes a first baffle 7 and a second baffle 8, a third baffle 9 is provided on one side of the first baffle 7 and the second baffle 8, a dust collector 90 is provided on the third baffle 9; a second fan 70 and a third fan 80 are provided on the first baffle 7 and the second baffle 8.

[0027] The utility model effectively filters and mixes raw materials through a filtering structure arranged in the mixing box 2, including a partition board and first and second filter screens, ensures the uniformity of polyvinyl chloride raw materials, and thus improves the quality of the final product; the dust of the raw materials can be initially blown off through the first air blowing structure; the raw materials can be efficiently extruded through the co-extrusion device; and finally, the dust of the co-extruded materials can be effectively blown off through the second air blowing structure.

[0028] The above embodiments are only preferred embodiments of the utility model, and do not limit the protection scope of the utility model accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A polyvinyl chloride co-extrusion device, characterized in that: It includes a frame, a mixing box is provided on the top of the frame, discharge boxes are provided on both sides of the top of the mixing box, and a filtering structure is provided in the mixing box; a co-extrusion device is provided below the mixing box, a feed pipe is provided on the co-extrusion device, and a first blowing structure is provided on one side of the feed pipe; a discharge pipe is provided on the other side of the co-extrusion device, and a second blowing structure is provided on the outer periphery of the discharge pipe.

2. A polyvinyl chloride co-extrusion device according to claim 1, characterized in that: The filtering structure comprises a partition, which is horizontally mounted in the mixing box, and a first filter screen is arranged on one side of the partition, and a second filter screen is arranged on the other side of the partition.

3. A polyvinyl chloride co-extrusion device according to claim 2, characterized in that: The co-extrusion device comprises a co-extrusion box, in which a first rotating shaft and a second rotating shaft are arranged, a first pushing knife and a second pushing knife are arranged on the first rotating shaft and the second rotating shaft respectively, and a first motor and a second motor are arranged on one side of the first rotating shaft and the second rotating shaft respectively.

4. A polyvinyl chloride co-extrusion device according to claim 3, characterized in that: A support frame is provided at the bottom of the co-extrusion box.

5. A polyvinyl chloride co-extrusion device according to claim 4, characterized in that: The first air blowing structure comprises a fixing frame, a first fan is arranged on the fixing frame, an air inlet pipe is arranged on one side of the first fan; and a third filter is arranged on one side of the air inlet pipe.

6. A polyvinyl chloride co-extrusion device according to claim 5, characterized in that: The second air blowing structure comprises a first baffle and a second baffle, a third baffle is disposed on one side of the first baffle and the second baffle, and a vacuum cleaner is disposed on the third baffle; a second fan and a third fan are disposed on the first baffle and the second baffle.

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