Epe series extrusion device

Abstract

The utility model relates to a kind of, specifically relates to a kind of EPE series extrusion device;Including first extruder and second extruder, the first extruder includes first chassis and is located on the first chassis first drive mechanism, first material cylinder and first screw cylinder, the first drive mechanism is located in one end of first screw cylinder, and first screw rod is connected in the first screw cylinder, the first material cylinder is located above the feed end of the first screw cylinder;The second extruder includes second chassis and is located on the second chassis second drive mechanism, second material cylinder and second screw cylinder, the second drive mechanism is located in one end of second screw cylinder, and second screw rod is connected in the second screw cylinder, the second material cylinder is located above the feed end of the second screw cylinder;The feed end of the second screw cylinder is communicated with the first screw cylinder by connecting pipe, the position of the connecting pipe and the first screw cylinder is close to the feed end of the first screw cylinder;The EPE series extrusion device of the scheme can improve product quality, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to an EPE extrusion equipment, specifically to an EPE tandem extrusion device. Background Technology

[0002] EPE, or expanded polyethylene, is a lightweight, flexible, non-porous foam structure that is widely used due to its excellent cushioning and shock absorption, lightweight and environmentally friendly properties, corrosion resistance, sound and heat insulation, and ease of processing.

[0003] EPE is produced using an extruder. The material is fed into the extruder and, through heating and pressurization, plasticized and continuously extruded into shape. Currently, commonly used extruders can be divided into single-screw extruders and twin-screw extruders based on the number of screws. Single-screw extruders are more widely used due to their simple structure, while twin-screw extruders offer better conveying and mixing capabilities due to the combined effect of the two screws.

[0004] In existing technologies, processing is typically carried out using a single extruder. However, to achieve excellent production quality and high efficiency from an extruder, attention must be paid not only to the melting and mixing of raw materials, but also to their homogenization and metering. Currently, achieving good results with a single extruder requires extensive pre-processing steps before the raw materials are fed into the extruder, which impacts production efficiency. Otherwise, it is difficult to simultaneously ensure excellent product quality and high production efficiency. Utility Model Content

[0005] The present invention aims to provide an EPE tandem extrusion device that can improve product quality and production efficiency.

[0006] This solution provides an EPE tandem extrusion device, comprising a first extruder and a second extruder. The first extruder includes a first base frame and a first drive mechanism, a first barrel, and a first screw barrel mounted on the first base frame. The first drive mechanism is located at one end of the first screw barrel and connected to a first screw rod disposed inside the first screw barrel. The first barrel is located above the feed end of the first screw barrel. The second extruder includes a second base frame and a second drive mechanism, a second barrel, and a second screw barrel mounted on the second base frame. The second drive mechanism is located at one end of the second screw barrel and connected to a second screw rod disposed inside the second screw barrel. The second barrel is located above the feed end of the second screw barrel. The discharge end of the second screw barrel is connected to the first screw barrel via a connecting pipe, and the connecting pipe is positioned close to the feed end of the first screw barrel.

[0007] Connecting two extruders in series via a connecting pipe creates a raw material passage. The raw material mixed in the second extruder enters the first extruder, where it is mixed and melted again. This allows for better melting and mixing of the raw materials, reducing the working pressure on either extruder and enabling them to achieve excellent product quality without operating at full capacity. It also improves production efficiency.

[0008] Furthermore, the two ends of the connecting pipe are connected to the first screw barrel and the second screw barrel via flanges.

[0009] Furthermore, the first screw barrel and the second screw barrel are arranged at the same horizontal level, with the first screw barrel being perpendicular to the second screw barrel.

[0010] Furthermore, the first extruder is a single-screw extruder, and the second extruder is a twin-screw extruder.

[0011] Furthermore, the bottom of the second base frame is provided with multiple sliding support leg assemblies.

[0012] Furthermore, the second base frame has multiple support feet on both sides of its bottom. The sliding support foot assembly includes a base, a slide rail, and a slide block. The base is fixed to the ground, the slide rail is fixed to the base, the slide block is slidably mounted on the slide rail, and the support foot is fixed to the slide block. The sliding support foot assembly facilitates the movement and docking of the second extruder with the first extruder.

[0013] Furthermore, a heating coil is provided on the connecting pipe.

[0014] The advantages of this utility model are: this tandem extruder device fully utilizes the advantages of both single-screw extruders and twin-screw extruders, resulting in better mixing of raw and auxiliary materials in the screw and barrel, more accurate homogenization and metering, and better foaming and molding quality, which has positive significance in the production of EPE pipes and rods. Attached Figure Description

[0015] Figure 1 This is a perspective view of an EPE tandem extrusion device according to the present invention;

[0016] Figure 2 This is a front view of an EPE tandem extrusion device according to the present invention;

[0017] Figure 3 This is a top view of an EPE tandem extrusion device according to the present invention;

[0018] Figure 4 This is an enlarged view of the sliding support assembly 400 in this utility model.

[0019] The reference numerals in the figure:

[0020] First extruder 100, first motor 101, first coupling 102, first reducer 103, first barrel 104, first heating coil 105, heating tile 106, first screw barrel 107, first base frame 108;

[0021] Second extruder 200, second motor 201, second coupling 202, second reducer 203, second barrel 204, second heating coil 205, second screw barrel 206, second base frame 207;

[0022] Connecting pipe 300, connecting pipe heating coil 301;

[0023] Sliding support assembly 400, base 401, slide rail 402, slide block 403, support fixing base 404. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] according to Figures 1 to 4 As shown, an EPE tandem extrusion device in this scheme includes a first extruder 100 and a second extruder 200 with screw barrels connected in series. The two extruders are connected in series through a connecting pipe 300 to form a raw material passage. The raw material mixed in the second extruder 200 enters the first extruder 100, where it is mixed and melted again with the raw material in the first extruder 100. This allows for better melting and mixing of the raw material, reducing the working pressure of any single extruder and enabling it to achieve excellent product quality without having to operate at full load. It also improves production efficiency. The specific setup is as follows.

[0026] See details Figure 2 The first extruder 100 includes a first base frame and a first drive mechanism, a first barrel 104, and a first screw barrel 107 mounted on the first base frame. The first drive mechanism is located at one end of the first screw barrel 107 and includes a first motor 101, a first coupling 102, and a first reducer 103 connected in sequence. The first reducer 103 is connected to a first screw located inside the first screw barrel 107. The first barrel 104 is located above the feed end of the first screw barrel 107. In this embodiment, the first extruder 100 is a single-screw extruder, which is mainly responsible for raw material homogenization and metering in the entire system.

[0027] See details Figure 3The second extruder 200 includes a second base frame and a second drive mechanism, a second barrel 204, and a second screw barrel 206 mounted on the second base frame. The second drive mechanism is located at one end of the second screw barrel 206 and includes a second motor 201, a second coupling 202, and a second reducer 203 connected in sequence. The second reducer 203 is connected to a second screw located inside the second screw barrel 206. The second barrel 204 is located above the feed end of the second screw barrel 206. In this embodiment, the first extruder 100 is a twin-screw extruder, more specifically a parallel twin-screw extruder, which is mainly responsible for the melting and mixing of raw materials in the entire system.

[0028] See details Figure 3 The discharge end of the second screw barrel 206 is connected to the first screw barrel 107 via a connecting pipe 300. The connecting pipe 300 is positioned near the feed end of the first screw barrel 107. The two ends of the connecting pipe 300 are connected to the first screw barrel 107 and the second screw barrel 206 via flanges. Multiple sections of connecting pipe heating coils 301 are wrapped around the connecting pipe 300, and multiple sections of second heating coils 205 are wrapped around the second screw barrel 206. A first heating coil 105 is wrapped around the first screw barrel 107 between the connecting pipe 300 and the first material barrel 104, and a heating tile 106 is wrapped around the first material barrel 104 between the connecting pipe 300 and the discharge end of the first material barrel 104.

[0029] The first screw barrel 107 and the second screw barrel 206 are arranged at the same horizontal level, with the first screw barrel 107 perpendicular to the second screw barrel 206. The bottom of the second base frame is provided with multiple sliding support assemblies 400. See details... Figure 4 In this embodiment, multiple support feet 404 are provided on both sides of the bottom of the second base frame. The sliding support foot assembly 400 includes a base 401, a slide rail 402, and a slide block 403. The base 401 is fixed to the ground, the slide rail 402 is fixed to the base 401, the slide block 403 is slidably mounted on the slide rail 402, and the support feet 404 are fixed to the slide block 403. The sliding support foot assembly 400 facilitates the movement and docking of the second extruder 200 with the first extruder 100.

[0030] This tandem extruder unit fully leverages the advantages of both single-screw and twin-screw extruders, resulting in better mixing of raw materials and auxiliary materials within the screw and barrel, more accurate homogenization and metering, and better foaming and molding quality. It has positive significance in the production of EPE pipes and rods.

[0031] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An EPE tandem extrusion apparatus, characterized in that: The extruder includes a first extruder and a second extruder. The first extruder includes a first base frame and a first drive mechanism, a first barrel, and a first screw barrel mounted on the first base frame. The first drive mechanism is located at one end of the first screw barrel and connected to the first screw barrel, which contains a first screw. The first barrel is located above the feed end of the first screw barrel. The second extruder includes a second base frame and a second drive mechanism, a second barrel, and a second screw barrel mounted on the second base frame. The second drive mechanism is located at one end of the second screw barrel and connected to the second screw barrel, which contains a second screw. The second barrel is located above the feed end of the second screw barrel. The discharge end of the second screw barrel is connected to the first screw barrel through a connecting pipe, and the connecting pipe is located near the feed end of the first screw barrel.

2. The EPE tandem extrusion apparatus according to claim 1, characterized in that: The two ends of the connecting pipe are connected to the first screw barrel and the second screw barrel via flanges.

3. The EPE tandem extrusion apparatus according to claim 1, characterized in that: The first screw barrel and the second screw barrel are arranged at the same horizontal level, and the first screw barrel is arranged perpendicular to the second screw barrel.

4. The EPE tandem extrusion apparatus according to claim 1, characterized in that: The first extruder is a single-screw extruder, and the second extruder is a twin-screw extruder.

5. The EPE tandem extrusion apparatus according to claim 1, characterized in that: The bottom of the second base frame is equipped with multiple sliding support leg assemblies.

6. The EPE tandem extrusion apparatus according to claim 5, characterized in that: The second base frame has multiple support feet on both sides of its bottom. The sliding support foot assembly includes a base, a slide rail, and a slide block. The base is fixed to the ground, the slide rail is fixed to the base, the slide block is slidably mounted on the slide rail, and the support foot fixing seat is fixed to the slide block.

7. The EPE tandem extrusion apparatus according to claim 1, characterized in that: The connecting pipe is equipped with a connecting pipe heating coil.

Images