Extrusion molding device

Abstract

The utility model relates to the technical field of composite material processing, in particular to an extrusion molding device which comprises an extruder, a hopper is mounted above the extruder, a discharge port of the hopper is communicated with a feed port of the extruder, and a stirring mechanism is arranged in the hopper; compared with the prior art, by arranging the stirring mechanism, the physical performance of a product can be more stable, the uniformity of the color of the product can be improved, a synergistic effect can be generated after multiple different materials are fully mixed, and therefore the performance of the product is optimized, the rejection rate is reduced, and the product quality is improved. Local breakage of the product caused by non-uniform mixing of the materials is avoided; and the stirring efficiency of various materials in the hopper can be further improved by realizing the running fit of the rod body and the stirring blades in different directions.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite material processing technical field especially relates to an extrusion forming device. BACKGROUND

[0002] PVC as a kind of composite processing material, because it has stability, light weight and flame retardance and other characteristics, has been widely used in building decoration materials, and the main processing mode of decorative material is to add PVC material and various additives in a certain proportion into an extrusion forming device, in an extrusion forming device, material is heated and sheared, through the rotation and propulsion effect of screw, it is changed from solid state to molten state, and continuously extruded through the mold of specific shape under certain pressure, forming the product with specific cross-sectional shape.

[0003] And directly adding a variety of materials into an extrusion forming device, and then through the rotation and propulsion effect of the spiral blade inside it, the mixing efficiency of various additives is poor, which further leads to performance fluctuation of the product, causing local performance instability, which may also cause uneven color, affecting the appearance of the product, and even causing the size of the product to deviate, affecting subsequent installation and use. UTILITY MODEL CONTENT

[0004] To solve the technical problems in the background art, the utility model provides an extrusion forming device.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] An extrusion forming device, characterized in that it comprises an extruder, a hopper is installed above the extruder, a discharge opening of the hopper is communicated with a feeding port of the extruder, and a stirring mechanism is arranged in the hopper.

[0007] Preferably, the stirring mechanism comprises:

[0008] A first shaft body is vertically installed in the hopper;

[0009] A driving mechanism is connected to the first shaft body, and the driving mechanism can drive the first shaft body to rotate relative to the hopper in the hopper; a plurality of rod bodies are assembled on the first shaft body.

[0010] Preferably, the plurality of rod bodies comprise first-type rod bodies and second-type rod bodies arranged horizontally, one end of each of the first-type rod bodies and the second-type rod bodies is fixed to the first shaft body, the first-type rod bodies and the second-type rod bodies are arranged in parallel, the first-type rod bodies and the second-type rod bodies are arranged at intervals in the axial direction of the first shaft body, and the ends of the first-type rod bodies and the second-type rod bodies away from the first shaft body are connected by a connecting rod.

[0011] Preferably, the stirring mechanism further comprises:

[0012] A plurality of second shaft bodies are rotatably installed on the first shaft body, and the second shaft bodies extend along the radial direction of the first shaft body; the first shaft body is provided with a groove coaxially arranged at one end of the first shaft body; one end of the second shaft body penetrates through the first shaft body and extends into the groove; the second shaft body is rotatably connected with the first shaft body; the first bevel gear is fixedly installed at the end of the second shaft body located in the groove; and the stirring blade is installed on the second shaft body outside the groove.

[0013] A second bevel gear is fixedly arranged opposite to the hopper, extends into the groove and is coaxially arranged with the first shaft body, and is in meshing with the plurality of first bevel gears.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] Compared with the prior art, the utility model has the advantages of: BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A structure schematic view of the extrusion molding device is provided for the utility model;

[0017] Fig. 2 A structure schematic view of the first shaft body in the extrusion molding device is provided for the utility model;

[0018] Fig. 3 A top view of the first shaft body in the extrusion molding device is provided for the utility model.

[0019] In the drawing: 1-extruder, 2-hopper, 3-first shaft body, 31-groove, 4-rod body, 5-second shaft body, 6-stirring blade, 7-first bevel gear, 8-second bevel gear. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] AsFigs. 1-3 As shown, this embodiment provides an extrusion molding apparatus, characterized in that it includes an extruder 1, a hopper 2 is installed above the extruder 1, the discharge port of the hopper 2 is connected to the feed port of the extruder 1, and a stirring mechanism is provided inside the hopper 2.

[0022] Overall, as various materials enter the hopper 2 from the feed inlet, in order to ensure that the hopper 2 is fully mixed during the process of entering the extruder 1 from the discharge outlet, a stirring mechanism is installed inside the hopper 2 to mix and stir the various materials entering the hopper 2, so that the various materials are fully mixed in the subsequent processing of the extruder 1.

[0023] By setting up a stirring mechanism, the physical properties of the product can be made more stable, the uniformity of the product color can be improved, and a synergistic effect can be generated after a variety of different materials are fully mixed, thereby optimizing the product performance, reducing the scrap rate, and preventing local breakage of the product due to uneven mixing of materials.

[0024] like Figs. 1-2 As shown, in one embodiment, the stirring mechanism includes:

[0025] The first shaft 3 is vertically installed inside the hopper 2;

[0026] A drive mechanism is connected to the first shaft 3, which can drive the first shaft 3 to rotate relative to the hopper 2 inside the hopper 2; multiple rods 4 are mounted on the first shaft 3.

[0027] The driving mechanism is specifically a worm gear mechanism. Multiple rods 4 are arranged in a circular array around the axis of the first shaft 3. The first shaft 3 is vertically installed in the hopper 2 through bearings. The worm gear is fixedly connected to the first shaft 3. By controlling the rotation of the worm, the transmission between the worm and the worm gear can further drive the first shaft 3 to rotate. The first shaft 3 then drives the multiple rods 4 to rotate accordingly, thus completing the mixing and stirring of various materials.

[0028] In another embodiment of this utility model, the drive mechanism can also be a gear transmission to drive the first shaft 3 to rotate. The gear can be either a spur gear or a bevel gear, and there is no limitation on this.

[0029] like Figs. 1-2 As shown, in one embodiment, the plurality of rods 4 include a first type rod and a second type rod arranged horizontally. One end of both the first type rod and the second type rod is fixed on the first shaft 3. The first type rod and the second type rod are arranged in parallel. The first type rod and the second type rod are arranged axially spaced apart from each other on the first shaft 3. The ends of the first type rod and the second type rod away from the first shaft 3 are connected by a connecting rod.

[0030] The specific structure of the rod 4 includes a first type of rod, a second type of rod, and a connecting rod. The first type of rod and the second type of rod are connected by the connecting rod. Then, the first shaft 3 is driven to rotate by the drive mechanism. The first shaft 3 drives the entire structure of the rod 4 to rotate, so as to complete the mixing and stirring of various materials.

[0031] Specifically, the hopper 2 is located on one side of the inner wall of the extruder 1 and is inclined. The connecting rod is parallel to the inclined inner wall. The inclined inner wall can reduce the accumulation and blockage of materials in the hopper 2 and improve the feeding efficiency. The parallel arrangement of the connecting rod with the inclined inner wall can better fit the shape of the hopper 2, so that the rod 4 can come into more comprehensive contact with the material during the mixing process, making the mixing more uniform and thorough.

[0032] like Fig. 1 and Fig. 3 As shown, in one embodiment, the stirring mechanism further includes:

[0033] Multiple second shafts 5 are rotatably mounted on a first shaft 3. The second shafts 5 extend radially along the first shaft 3. One end of the first shaft 3 has a groove 31 arranged coaxially with the first shaft 3. One end of the second shaft 5 passes through the first shaft 3 and extends into the groove 31. The second shaft 5 is rotatably connected to the first shaft 3. A first bevel gear 7 is fixedly installed at the end of the second shaft 5 located in the groove 31. A stirring blade 6 is installed on the second shaft 5 outside the groove 31.

[0034] The second bevel gear 8 is fixed relative to the hopper 2. The second bevel gear 8 extends into the trough 31 and is arranged coaxially with the first shaft 3. The second bevel gear 8 meshes with multiple first bevel gears 7.

[0035] Specifically, the stirring mechanism also includes multiple second shafts 5, a first bevel gear 7, stirring blades 6, and a second bevel gear 8. The multiple second shafts 5 are arranged one-to-one in the area formed by two adjacent rods 4. When the drive mechanism controls the first shaft 3 to rotate, the first shaft 3 drives the multiple rods 4 to rotate accordingly. As the first shaft 3 drives the rods 4 to rotate, since the second bevel gear 8 extends into the groove 31 and meshes with the multiple first bevel gears 7, the multiple second shafts 5 can revolve around the first shaft 3 while rotating around their own axis. This causes the second shafts 5 to drive the stirring blades 6 to rotate. By rotating the rods 4 around the axis of the first shaft 3 and cooperating with the second shafts 5 to drive the stirring blades 6 to rotate around the axis of the second shaft 5, the mixing and stirring of multiple materials can be completed, and the stirring effect of multiple materials can be further improved.

[0036] Of course, the utility model is not limited to the details of the above exemplary embodiments for those skilled in the art, and also includes the same or similar structures that can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

[0038] The technical, shape, structure parts not described in detail in the utility model are well-known technologies.

Claims

1. An extrusion molding apparatus characterized by comprising: The utility model provides an extruder, which comprises an extruder (1), a hopper (2) installed above the extruder (1), a discharge port of the hopper (2) being communicated with a feeding port of the extruder (1), and a stirring mechanism arranged in the hopper (2). The stirring mechanism comprises: a first shaft body (3) vertically arranged in the hopper (2); a driving mechanism connected to the first shaft body (3) and capable of driving the first shaft body (3) to rotate relative to the hopper (2) in the hopper (2), and a plurality of rod bodies (4) assembled on the first shaft body (3). The stirring mechanism further comprises: a plurality of second shaft bodies (5) each rotationally arranged on the first shaft body (3) and extending along a radial direction of the first shaft body (3), the first shaft body (3) being provided with a groove (31) coaxially arranged at one end of the first shaft body (3), the second shaft body (5) penetrating through the first shaft body (3) and extending into the groove (31), the second shaft body (5) being rotationally connected to the first shaft body (3), the second shaft body (5) being fixedly provided with a first bevel gear (7) at one end located in the groove (31), and the second shaft body (5) outside the groove (31) being provided with a stirring blade (6); a second bevel gear (8) fixed relative to the hopper (2) and coaxially arranged in the groove (31) and engaged with the first bevel gear (7).

2. The extrusion molding apparatus according to claim 1, wherein The plurality of rod bodies (4) comprise first-type rod bodies and second-type rod bodies arranged horizontally, the first-type rod bodies and the second-type rod bodies being fixed at one end on the first shaft body (3), the first-type rod bodies being parallel to the second-type rod bodies, the first-type rod bodies and the second-type rod bodies being arranged in an axial direction of the first shaft body (3) and spaced apart from each other, and the first-type rod bodies and the second-type rod bodies being connected by a connecting rod at one end away from the first shaft body (3).

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