Polyethylene pipe extrusion equipment

Abstract

The utility model discloses polyethylene pipe extrusion equipment, relates to the technical field of polyethylene pipe production, and aims to improve the production efficiency of polyethylene pipes, prevent dust generated by cutting from entering air, maintain a good production environment and improve the production efficiency of the polyethylene pipes. According to the technical scheme, the polyethylene pipe extrusion equipment is characterized by comprising an extruder, a shaping part and a cutting part, the shaping part comprises a mold replacement structure and a cooling box, and the extruder comprises a bottom box, a motor base, an extrusion motor, a rotating shaft fixing column, a heating box and a feeding hopper; the mold replacement structure comprises a mold fixing seat, a mold pipe, a fixing plate, a springback rod and a stretching handle, the cooling box comprises a box body, a cooling inlet, a cooling outlet and a cooling liquid circulation opening, the cutting part comprises a fixing pipe, a cutting box and a bottom frame, and the cutting box comprises an outer box, a dust collection drawer and a cutting motor. The double-pipe type mold pipe adopted by the equipment can produce two polyethylene pipes at the same time, the mold can be replaced through the mold replacement structure, the production efficiency is improved, meanwhile, the production effect of the equipment on different types and sizes of the pipes is met, and the influence of dust on the environment is avoided during cutting.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene pipe production technology, and in particular to a polyethylene pipe extrusion equipment. Background Technology

[0002] Polyethylene pipe (PE pipe) is a type of pipe made primarily from polyethylene resin through an extrusion molding process. Polyethylene pipe possesses excellent low-temperature resistance, chemical stability, and electrical insulation properties, making it widely used in indoor and outdoor water supply, drainage, and gas pipelines. Due to its good flexibility, long lifespan, and corrosion resistance, polyethylene pipes are widely used in building drainage, gas supply, heating, electrical cable conduits, agricultural water-saving irrigation, industrial wastewater discharge, and mining mineral transportation. For example, a PE plastic pipe production line can produce various types of PE plastic hoses suitable for water pipes, conduits, and electrical cable conduits. A polyethylene pipe extruder is an automated production line specifically designed for producing polyethylene (PE) pipes or other PE plastic products. This equipment transforms PE raw materials into products with specific shapes and sizes through a series of continuous and coordinated workflows.

[0003] Because the process of producing polyethylene pipes by polyethylene pipe extrusion equipment is relatively complex, the pipes produced by a single piece of equipment have a limited range of shapes and sizes. The production efficiency for pipes of different sizes is slow, and the applicability is low. Existing polyethylene pipe extrusion equipment generates a lot of dust during pipe cutting, which is difficult to clean and is harmful to human health if inhaled. Utility Model Content

[0004] The purpose of this invention is to provide a polyethylene pipe extrusion equipment that effectively improves the production efficiency of polyethylene pipes and prevents dust generated during cutting from entering the air, thus ensuring a good production environment.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] A polyethylene pipe extrusion device includes an extruder, a shaping section, and a cutting section. The polyethylene raw material is heated and extruded through the extruder. The shaping section is fixed to the right end of the extruder. The polyethylene pipe is cooled and shaped by the shaping section. The right end of the shaping section is connected to the cutting section. The shaped polyethylene pipe is cut by the cutting section. The shaping section includes a mold replacement structure and a cooling box. One end of the mold replacement structure is threaded to the right end of the extruder, and the other end is fixed to the left side of the cooling box. The mold replacement structure is provided with a mold tube, which is threaded to the extruder. The left side of the cooling box is engaged with the other end of the mold tube. The cutting section is provided with a cutting box, through which the polyethylene pipe is cut.

[0007] Furthermore, the extruder includes a base box, a motor base, an extrusion motor, a rotating shaft fixing column, a heating box, and a feed hopper. The motor base is located at the left end of the base box and is welded to the top surface of the base box. The extrusion motor is fixed on the motor base, and the rotating shaft of the extrusion motor is connected to the inside of the heating box. A rotating shaft fixing column is located between the extrusion motor and the heating box, and the bottom end of the rotating shaft fixing column is welded to the base box. The rotating shaft of the extrusion motor rotates at a fixed point via the rotating shaft fixing column. A feed hopper is located at the top of the heating box, and the polyethylene raw material is poured into the heating box through the feed port. The polyethylene raw material is heated and melted in the heating box.

[0008] Furthermore, the mold replacement structure includes a mold fixing base, a mold tube, a fixing plate, a spring rod, and a tension handle. A base box and a cooling box are welded to both sides of the mold fixing base, respectively. A mold tube is snapped into the top of the mold fixing base. There are two mold tubes, each welded with a fixing plate. The fixing plate is located at one end of the mold tube. The mold tube is threaded to the right side of the heating box via the fixing plate. The other end of the mold tube is snapped into the cooling box. The spring rod is telescopically connected to the top of the mold fixing base. The bottom end of the spring rod is connected to the mold fixing base via a spring. A tension handle is welded to the top of the spring rod. The spring rod is extended upward through the tension handle. The mold tube is snapped into the mold fixing base via the spring rod.

[0009] Furthermore, the cooling box includes a box body, a cooling inlet, a cooling outlet, and a coolant circulation port. The cooling inlet is located on the left side of the box body, and one end of the mold tube is snapped into the cooling inlet. The cooling outlet is located on the right side of the box body and is connected to the cutting part. There are two coolant circulation ports, both fixed on the top surface of the box body. The coolant circulates inside the box body through the cooling circulation ports.

[0010] Furthermore, the cutting section includes a fixing pipe, a cutting box, and a base frame. The fixing pipe is located at both ends of the cutting box, one end of which is connected to the cooling outlet of the cooling box, and a cutting frame is welded to the bottom of the cutting box.

[0011] Furthermore, the cutting box includes an outer box, a dust collection drawer, and a cutting motor. Fixed pipes pass through both sides of the outer box, and a dust collection drawer is provided at the bottom of the outer box. The cutting motor is connected to the right side of the outer box and is fixed on the base frame. The polyethylene pipe is cut through the inside of the cutting box.

[0012] In summary, the beneficial technical effects of this utility model are as follows:

[0013] 1. A double-tube mold is used, which can produce two tubes at the same time and cut them, thus doubling the production efficiency;

[0014] 2. The mold tube can be replaced through the mold replacement structure, allowing the equipment to produce pipes of different sizes and models, making it highly adaptable;

[0015] 3. A dust collection drawer was selected. Dust generated after the pipes are cut inside the cutting box can be poured out through the dust collection drawer to prevent dust from entering the air and causing pollution. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the extruder structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the shaping part of this utility model;

[0019] Figure 4 This is a schematic diagram of the cutting part structure of this utility model.

[0020] 1. Extruder; 2. Shaping section; 3. Cutting section; 11. Base box; 12. Motor base; 13. Extrusion motor; 14. Rotary shaft fixing column; 15. Heating box; 16. Feed hopper; 21. Die replacement structure; 22. Cooling box; 31. Fixing tube; 32. Cutting box; 33. Base frame; 211. Die fixing seat; 212. Die tube; 213. Fixing plate; 214. Springback rod; 215. Pull handle; 221. Box body; 222. Cooling inlet; 223. Cooling outlet; 224. Coolant circulation port; 321. Outer box; 322. Dust collection drawer; 323. Cutting motor. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model discloses a polyethylene pipe extrusion device, including an extruder 1, a shaping section 2, and a cutting section 3. Polyethylene raw material is heated and melted through the extruder 1 and then extruded. The shaping section 2 is fixed to the right end of the extruder 1. The shaping section 2 cools and shapes the molten polyethylene raw material into a polyethylene pipe. The right end of the shaping section 2 is connected to the cutting section 3, and the shaped polyethylene pipe is cut to the appropriate size by the cutting section 3. The shaping section 2 includes a mold replacement structure 21 and a cooling box 22. One end of the mold replacement structure 21 is threaded to the right end of the extruder 1. The other end of structure 21 is fixed to the left side of cooling box 22. The mold replacement structure 21 is provided with mold tube 212, which is threadedly connected to extruder 1. Mold tube 212 can be replaced on the equipment, so the equipment can produce pipes of different sizes and models. The other end of mold tube 212 is snapped into the left side of cooling box 22. After the polyethylene is shaped by the mold, it is cooled and reinforced inside cooling box 22. Cutting part 3 is provided with cutting box 32. The polyethylene pipe is cut inside cutting box 32 to prevent dust generated during cutting from entering the air and polluting the environment. Extruder 1 includes a base box 11, a motor base 12, an extrusion motor 13, a shaft fixing column 14, a heating box 15, and a feed hopper 16. The motor base 12 is located at the left end of the base box 11 and is welded to the top surface of the base box 11. The extrusion motor 13 is fixed on the motor base 12, and the shaft of the extrusion motor 13 is connected to the inside of the heating box 15. A shaft fixing column 14 is located between the extrusion motor 13 and the heating box 15, and its bottom end is welded to the base box 11. The shaft of the extrusion motor 13 rotates at a fixed point via the shaft fixing column 14. The feed hopper 16 is located at the top of the heating box 15. Polyethylene raw material is poured into the heating box 15 through the feed inlet. The polyethylene raw material is heated and melted in the heating box 15. The extrusion motor 13 causes the molten polyethylene raw material in the heating box 15 to be rotated and extruded, and then transported to the shaping section 2. See details below. Figure 1 , Figure 2 .

[0023] The shaping section 2 consists of a mold replacement structure 21 and a cooling box 22. The mold replacement structure 21 includes a mold fixing seat 211, a mold tube 212, a fixing plate 213, a springback rod 214, and a tension handle 215. The bottom box 11 and the cooling box 22 are welded to both sides of the mold fixing seat 211, respectively. The mold tube 212 is snapped onto the top of the mold fixing seat 211. Polyethylene raw materials are shaped into pipes through the mold tube 212. There are two mold tubes 212. The double-tube mold tube 212 can produce two pipes at the same time and cut them, which doubles the production efficiency. Fixing plates 213 are welded to both mold tubes 212. The fixing plates 213 are located at one end of the mold tube 212. Screw holes are provided at the four corners of the fixing plates 213, and they are threaded to the heating box through the screw holes. On the right side of 15, the mold tube 212 is threadedly installed on the right side of the heating box 15 through the fixing plate 213. The other end of the mold tube 212 is snapped into the cooling box 22. The spring rod 214 is telescopically connected to the top of the mold fixing seat 211. The bottom end of the spring rod 214 is connected to the mold fixing seat 211 through a spring. The top of the spring rod 214 is welded with a tension handle 215. The spring rod 214 is stretched upward through the tension handle 215. The spring rod 214 generates a retraction pressure through the spring and presses the top of the mold tube 212. The mold tube 212 is fixedly snapped into the mold fixing seat 211 through the spring rod 214. Pulling up the spring rod 214 can disassemble and replace the mold tube 212, so that the equipment can produce tubes of different sizes and models, and has extremely high applicability. Cooling box 22 includes a box body 221, a cooling inlet 222, a cooling outlet 223, and a coolant circulation port 224. The cooling inlet 222 is located on the left side of the box body 221. One end of the mold tube 212 is inserted into the cooling inlet 222. The polyethylene pipe shaped by the mold tube 212 enters the cooling box 22 through the cooling inlet 222. The cooling outlet 223 is located on the right side of the box body 221 and is connected to the cutting section 3. The polyethylene pipe cooled and reinforced inside the cooling box 22 is discharged to the cutting section 3 through the cooling outlet 223. Two coolant circulation ports 224 are provided, both fixed to the top surface of the box body 221. The coolant circulates inside the box body 221 through the cooling circulation ports. Inside the cooling box 22, the coolant cools, shapes, and reinforces the polyethylene pipe. See details below. Figure 3 .

[0024] The cutting unit 3 includes a fixing pipe 31, a cutting box 32, and a base frame 33. The fixing pipe 31 is located at both ends of the cutting box 32, with one end connected to the cooling outlet 223 of the cooling box 22. Polyethylene pipes are transported into the cutting box 32 through the fixing pipe 31. A cutting frame is welded to the bottom of the cutting box 32 to support it. The cutting box 32 includes an outer box 321, a dust collection tray 322, and a cutting motor 323. Fixing pipes 31 pass through both sides of the outer box 321, and the fixing pipes 31 on the outside of the outer box 321 are used to discharge the cut pipes. A dust collection tray 322 is located at the bottom of the outer box 321, and the dust generated after the pipes are cut inside the cutting box 32 can be poured out through the dust collection tray 322. The cutting motor 323 is connected to the right side of the outer box 321 and is fixed to the base frame 33. The polyethylene pipes are cut inside the cutting box 32, and the cutting is completed inside the cutting box 32 to prevent dust from entering the air and causing pollution. See details. Figure 4 .

[0025] Example

[0026] Operating procedures

[0027] 1. Pour the polyethylene raw material into the feed hopper 16, and then heat and melt it in the heating box 15;

[0028] 2. The molten polyethylene raw material is pushed towards the shaping section 2 by the screw inside the heating box 15 driven by the rotating shaft of the extrusion motor 13;

[0029] 3. The molten polyethylene raw material is shaped and sized by the mold tube 212 and then pushed into the cooling box 22 for cooling and solidification;

[0030] 4. When it is necessary to replace the mold tube 212, remove the screws on the fixing plate 213, then pull up the spring rod 214 to remove the mold tube 212, place another set of molds on the mold fixing seat 211, then lower the spring rod 214 to fix it on the mold fixing seat 211, and finally install it on the right side of the heating box 15 through the screw holes on the fixing plate 213.

[0031] 5. After the polyethylene pipes have been cooled in the cooling box 22, they are transported to the cutting box 32 for cutting.

[0032] 6. Staff members need to empty the dust collected in the dust collection drawer 322 regularly.

[0033] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A polyethylene pipe extrusion plant comprising an extruder (1), a shaping section (2) and a cutting section (3), characterized in that: The polyethylene raw material is heated and extruded by the extruder (1), the right end of the extruder (1) is fixed with the shaping part (2), the polyethylene pipe material is cooled and shaped by the shaping part (2), the right end of the shaping part (2) is connected with the cutting part (3), the shaped polyethylene pipe material is cut by the cutting part (3), the shaping part (2) comprises a mold replacement structure (21) and a cooling box (22), one end of the mold replacement structure (21) is threadedly connected at the right end of the extruder (1), the other end of the mold replacement structure (21) is fixed on the left side of the cooling box (22), the mold replacement structure (21) is provided with a mold pipe (212), the mold pipe (212) is threadedly connected on the extruder (1), the other end of the mold pipe (212) is clamped on the left side of the cooling box (22), the cutting part (3) is provided with a cutting box (32), the polyethylene pipe material is cut inside the cutting box (32).

2. A polyethylene pipe extrusion apparatus according to claim 1, characterised in that: The extruder (1) comprises a bottom box (11), a motor base (12), an extrusion motor (13), a rotating shaft fixing column (14), a heating box (15) and a feeding hopper (16), the left end of the bottom box (11) is provided with the motor base (12), the motor base (12) is welded on the top surface of the bottom box (11), the extrusion motor (13) is fixed on the motor base (12), the rotating shaft of the extrusion motor (13) is connected inside the heating box (15), the rotating shaft fixing column (14) is arranged between the extrusion motor (13) and the heating box (15), the bottom end of the rotating shaft fixing column (14) is welded on the bottom box (11), the rotating shaft of the extrusion motor (13) rotates by the rotating shaft fixing column (14), the top of the heating box (15) is provided with the feeding hopper (16), the polyethylene raw material is poured into the heating box (15) through the feeding port, and the polyethylene raw material is heated and melted in the heating box (15).

3. A polyethylene pipe extrusion apparatus according to claim 1, wherein: The mold replacement structure (21) comprises a mold fixing seat (211), a mold pipe (212), a fixed plate (213), a rebound rod (214) and a stretching handle (215), the mold fixing seat (211) is welded on both sides of the bottom box (11) and the cooling box (22), the mold pipe (212) is clamped on the top end of the mold fixing seat (211), the mold pipe (212) is provided with two, and the fixed plate (213) is welded on one end of the mold pipe (212), the mold pipe (212) is threadedly connected on the right side of the heating box (15) through the fixed plate (213), the other end of the mold pipe (212) is clamped in the cooling box (22), the rebound rod (214) is connected at the top end of the mold fixing seat (211), the bottom end of the rebound rod (214) is connected in the mold fixing seat (211) through a spring, the top end of the rebound rod (214) is welded with the stretching handle (215), the rebound rod (214) is stretched and lengthened upward through the stretching handle (215), and the mold pipe (212) is clamped on the mold fixing seat (211) through the rebound rod (214).

4. A polyethylene pipe extrusion apparatus according to claim 1, wherein: The cooling box (22) comprises a box body (221), a cooling inlet (222), a cooling outlet (223) and a cooling liquid circulation port (224), the cooling inlet (222) is arranged on the left side of the box body (221), one end of the mold pipe (212) is clamped in the cooling inlet (222), the right side of the box body (221) is provided with the cooling outlet (223), the cooling outlet (223) is connected with the cutting part (3), the cooling liquid circulation port (224) is provided with two, and the two are fixed on the top surface of the box body (221), and the cooling liquid circulates in the box body (221) through the cooling liquid circulation port.

5. A polyethylene pipe extrusion apparatus according to claim 1, wherein: The cutting part (3) comprises a fixed pipe (31), a cutting box (32) and a chassis (33), the fixed pipe (31) is arranged at the left and right ends of the cutting box (32), one end of the fixed pipe (31) is connected with the cooling outlet (223) of the cooling box (22), and the bottom end of the cutting box (32) is welded with a cutting frame.

6. A polyethylene pipe extrusion apparatus according to claim 5, characterised in that: The cutting box (32) comprises an outer box (321), a dust collecting drawer (322) and a cutting motor (323), the outer box (321) is provided with the fixed pipe (31) penetrating through the left and right sides, the bottom end of the outer box (321) is provided with the dust collecting drawer (322), the right side of the outer box (321) is connected with the cutting motor (323), the cutting motor (323) is fixed on the chassis (33), and the polyethylene pipe is cut in the cutting box (32).

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