PE water supply pipe extrusion molding device
The PE water pipe extrusion molding device addresses uneven heating and surface quality issues by integrating heating, mixing, and smoothing features, enhancing material uniformity and pipe quality while reducing energy waste.
Patent Information
- Application Number
- CN202421890599.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The existing PE water supply pipe extrusion molding devices have problems such as uneven heating, waste of energy, gas emissions pollute the environment and unsmooth molding surfaces, which affect the quality and yield of the pipe.
A PE water feed pipe extrusion forming device including a stirring device, a waste gas heating device and a correction forming device is designed. The raw materials are mixed by a stirring impeller, and the raw materials and extrusion tube are preheated by the exhaust gas heating tube, and the surface of the pipe is smooth and smooth in combination with the correction forming sleeve.
It achieves uniform heating of raw materials, saves energy, reduces pollution, improves the quality and yield of pipes, and ensures smooth and smooth surfaces.
Smart Images
Figure CN223099889U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PE pipe processing, in particular to an extrusion molding device for PE water supply pipes. Background Art
[0002] In recent years, the plastic pipes in our country have developed rapidly and the quality has been continuously improved. Among them, polyethylene (PE) pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission pipes, electrical and telecommunications protection sleeves, industrial pipes, agricultural pipes, etc. due to their own unique advantages. They are mainly applied to fields such as urban water supply, urban gas supply and farmland irrigation.
[0003] PE pipes for water supply are replacement products of traditional steel pipes and polyvinyl chloride drinking water pipes. Water supply pipes must withstand a certain pressure, and usually PE resins with high molecular weight and good mechanical properties, such as HDPE resins, are selected.
[0004] In the production process of preparing PE water supply pipes, the raw materials need to be heated and melted and then extruded into the die cavity by an extrusion screw for forming and subsequent processing. Due to the large size of the barrel, it takes a long time for the heating plate outside the barrel to heat the raw materials evenly, resulting in waste of energy, and uneven heating and melting of the raw materials will also affect the quality of PE water supply pipes. During the extrusion process of PE water supply pipes, certain hot gases will be generated. If these gases are not discharged, they will affect the quality of PE water supply pipes. Directly discharging these gases will cause harm to the environment and waste the heat carried by these gases. And the existing PE water supply pipes lack a structure for secondary shaping after extrusion molding, which easily leads to non-smooth and uneven surfaces of the formed PE water supply pipes and low product qualification rate.
[0005] Therefore, it is urgent to design an extrusion molding device for PE water supply pipes to solve the above problems. Content of the Utility Model
[0006] The purpose of the utility model is to provide an extrusion molding device for PE water supply pipes.
[0007] An extrusion molding device for PE water supply pipes includes a workbench. A fixed extrusion pipe is arranged at the top of the workbench. An extrusion screw is rotatably arranged inside the extrusion pipe. A feeding funnel communicated with the extrusion pipe is arranged above the front part of the extrusion pipe. A stirring device is rotatably arranged inside the feeding funnel. A heating plate is fixedly arranged at the lower part outside the feeding funnel. An exhaust gas heating device communicated with the extrusion pipe is arranged at the upper part outside the feeding funnel and outside the extrusion pipe. A die sleeve communicated with the extrusion pipe is arranged at the rear part of the extrusion pipe. A die core matched with the die sleeve is fixedly arranged inside the die sleeve. A calibration and shaping device matched with the die sleeve is arranged at the rear part of the die sleeve. A power device for driving the extrusion screw, the stirring device and the calibration and shaping device to rotate is arranged on the workbench.
[0008] Further, the stirring device includes a rotating shaft which penetrates through the side wall of the feeding funnel and is hermetically and rotationally connected thereto through a sealed bearing seat. A plurality of stirring shafts fixedly connected to the rotating shaft are arranged in the middle of the feeding funnel. A plurality of stirring rods are fixedly arranged on the stirring shafts. Stirring impellers fixedly connected to the rotating shaft are symmetrically arranged on the left and right sides of the stirring shafts.
[0009] Further, the exhaust gas heating device includes an exhaust tee. The intake end of the exhaust tee is fixedly arranged on the top of the extrusion pipe and is communicated therewith. The two outlet ends of the exhaust tee are respectively communicated with a first heating pipe and a second heating pipe. The first heating pipe is wound around the upper outer side of the feeding funnel. The second heating pipe is wound around the outside of the extrusion pipe.
[0010] Further, the calibration and forming device includes a guide sleeve arranged behind the die sleeve. The guide sleeve is rotatably arranged above the workbench through a guide bearing seat. A calibration and forming sleeve is arranged inside the guide sleeve. The calibration and forming sleeve is coaxially arranged with the die sleeve and the die core.
[0011] Further, the power device includes a motor and a transmission shaft. The motor is fixedly arranged above the workbench. The output end of the motor is fixedly connected with a power main shaft. The power main shaft penetrates through the extrusion pipe and is fixedly connected with the extrusion screw. A first driving pulley and a second driving pulley are fixedly arranged on the power main shaft. A first driven pulley is fixedly arranged on the rotating shaft outside the feeding funnel. The first driving pulley and the first driven pulley are connected by a belt in transmission. The transmission shaft is rotatably arranged below the workbench through a plurality of transmission bearing seats. A second driven pulley is fixedly arranged on the transmission shaft. The second driven pulley and the second driving pulley are connected by a belt in transmission. A transmission gear is fixedly arranged on the transmission shaft. A transmission gear ring is fixedly arranged on the outside of the guide sleeve. The transmission gear and the transmission gear ring are meshed and connected.
[0012] Further, a plurality of support columns are fixedly arranged at the bottom of the workbench.
[0013] In summary, the utility model has the following beneficial effects:
[0014] The heating plate of the present utility model is used to heat the raw materials in the feeding hopper. The rotating shaft drives the stirring shaft and the stirring rods to stir and turn the materials. At the same time, the stirring impeller accelerates the flow of the raw materials, making the raw materials more evenly mixed, saving energy, and improving the quality of the PE water supply pipe. The gas with heat in the first heating pipe wound around the upper outer side of the feeding hopper can preheat the raw materials in the feeding hopper, further improving the heating efficiency of the raw materials in the feeding hopper. The gas with heat in the second heating pipe wound around the outside of the extrusion pipe can heat the extrusion pipe, ensuring the temperature of the raw materials during the extrusion process of the PE water supply pipe and further ensuring the quality of the PE water supply pipe. The rotating calibration and forming sleeve calibrates and forms the surface of the PE water supply pipe, making its surface smooth and flat, and improving the yield of the PE water supply pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:
[0016] Figure 1 It is a front view cross-sectional view of an extrusion molding device for a PE water supply pipe of the present utility model.
[0017] In the figure: 1 workbench, 2 extrusion pipe, 3 extrusion screw, 4 feeding hopper, 5 die sleeve, 6 die core, 7 calibration and forming device, 701 guide sleeve, 702 calibration and forming sleeve, 703 guide bearing seat, 8 stirring device, 801 rotating shaft, 802 sealing bearing seat, 803 stirring shaft, 804 stirring rods, 805 stirring impeller, 9 power device, 901 motor, 902 power main shaft, 903 first driving pulley, 904 second driving pulley, 905 first driven pulley, 906 belt, 907 transmission shaft, 908 transmission bearing seat, 909 second driven pulley, 910 transmission gear, 911 transmission gear ring, 10 heating plate, 11 waste gas heating device, 1101 exhaust tee, 1102 first heating pipe, 1103 second heating pipe, 12 support column. SPECIFIC EMBODIMENTS
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0019] The following is a further description of the present utility model in conjunction with the attached Figure 1 drawings:
[0020] A PE water supply pipe extrusion molding device includes a workbench 1. A plurality of support columns 12 are fixedly arranged at the bottom of the workbench 1. An extrusion pipe 2 is fixedly arranged at the top of the workbench 1. An extrusion screw 3 is rotatably arranged in the extrusion pipe 2. A feeding funnel 4 communicating with the extrusion pipe 2 is arranged above the front part of the extrusion pipe 2. A stirring device 8 is rotatably arranged in the feeding funnel 4. The stirring device 8 includes a rotating shaft 801. The rotating shaft 801 penetrates through the side wall of the feeding funnel 4 and is hermetically and rotatably connected to the feeding funnel 4 through a sealing bearing seat 802. A plurality of stirring shafts 803 fixedly connected to the rotating shaft 801 are arranged in the middle of the feeding funnel 4. A plurality of mixing rods 804 are fixedly arranged on the stirring shafts 803. Stirring impellers 805 fixedly connected to the rotating shaft 801 are symmetrically arranged on the left and right sides of the stirring shafts 803.
[0021] A heating plate 10 is fixedly arranged at the lower part of the outer side of the feeding funnel 4. An exhaust gas heating device 11 communicating with the extrusion pipe 2 is arranged at the upper part of the outer side of the feeding funnel 4 and outside the extrusion pipe 2. The exhaust gas heating device 11 includes an exhaust three-way 1101. The intake end of the exhaust three-way 1101 is fixedly arranged at the top of the extrusion pipe 2 and communicates with the extrusion pipe 2. The two outlet ends of the exhaust three-way 1101 are respectively communicated with a first heating pipe 1102 and a second heating pipe 1103. The first heating pipe 1102 is wound around the upper part of the outer side of the feeding funnel 4. The second heating pipe 1103 is wound around the outside of the extrusion pipe 2.
[0022] In this embodiment, the heating plate 10 is used to heat the raw materials in the feeding funnel 4. The rotating shaft 801 drives the stirring shafts 803 and the mixing rods 804 to stir and turn the materials. At the same time, the stirring impellers 805 accelerate the flow of the raw materials, making the raw materials more evenly mixed, saving energy, and improving the quality of the PE water supply pipe.
[0023] After the heated and melted raw materials enter the extrusion pipe 2, the rotating extrusion screw 3 will extrude and push the raw materials backward. The generated hot gas enters the first heating pipe 1102 and the second heating pipe 1103 respectively from the exhaust three-way 1101. The hot gas in the first heating pipe 1102 wound around the upper part of the outer side of the feeding funnel 4 can preheat the raw materials in the feeding funnel 4, further improving the heating efficiency of the raw materials in the feeding funnel 4; the hot gas in the second heating pipe 1103 wound around the outside of the extrusion pipe 2 can heat the extrusion pipe 2, ensuring the temperature of the raw materials during the extrusion process of the PE water supply pipe and further ensuring the quality of the PE water supply pipe. The hot gas in the first heating pipe 1102 and the second heating pipe 1103 finally enters the collection device for recovery and treatment, preventing environmental pollution.
[0024] The rear part of the extrusion pipe 2 is provided with a die sleeve 5 communicated with it. A die core 6 matched with the die sleeve 5 is fixedly arranged in the die sleeve 5. The rear part of the die sleeve 5 is provided with a calibration and forming device 7 matched with it. The calibration and forming device 7 includes a guide sleeve 701 arranged behind the die sleeve 5. The guide sleeve 701 is rotatably arranged above the workbench 1 through a guide bearing seat 703. A calibration and forming sleeve 702 is arranged in the guide sleeve 701. The calibration and forming sleeve 702 is coaxially arranged with the die sleeve 5 and the die core 6.
[0025] In this embodiment, the rotating extrusion screw 3 extrudes and pushes the raw materials backward into the die sleeve 5. The die sleeve 5 cooperates with the die core 6 to extrude the heated and melted raw materials into the shape of a PE water supply pipe. The extruded PE water supply pipe is in a relatively hot state at this time, and then enters the rotating guide sleeve 701, and then passes through the rotating calibration and forming sleeve 702 to calibrate and form its surface, making its surface smooth and flat, and improving its yield.
[0026] The workbench 1 is provided with a power device 9 for driving the extrusion screw 3, the stirring device 8 and the calibration and forming device 7 to rotate. The power device 9 includes a motor 901 and a transmission shaft 907. The motor 901 is fixedly arranged above the workbench 1. The output end of the motor 901 is fixedly connected with a power main shaft 902. The power main shaft 902 penetrates through the extrusion pipe 2 and is fixedly connected with the extrusion screw 3. A first driving pulley 903 and a second driving pulley 904 are fixedly arranged on the power main shaft 902. A first driven pulley 905 is fixedly arranged on the rotating shaft 801 outside the feeding hopper 4. The first driving pulley 903 and the first driven pulley 905 are connected by a belt 906. The transmission shaft 907 is rotatably arranged below the workbench 1 through a plurality of transmission bearing seats 908. A second driven pulley 909 is fixedly arranged on the transmission shaft 907. The second driven pulley 909 and the second driving pulley 904 are connected by a belt 906. A transmission gear 910 is fixedly arranged on the transmission shaft 907. A transmission gear ring 911 is fixedly arranged outside the guide sleeve 701. The transmission gear 910 and the transmission gear ring 911 are meshed and connected.
[0027] In this embodiment, using one motor 901 can drive the extrusion screw 3, the stirring device 8 and the calibration and forming device 7, improving the energy utilization efficiency and reducing the manufacturing cost. The output end of the motor 901 directly drives the extrusion screw 3 to rotate through the power main shaft 902, and the first driving pulley 903 and the second driving pulley 904 on the power main shaft 902 also rotate synchronously.
[0028] The first driving pulley 903 drives the rotating shaft 801 to rotate through the belt 906. The stirring shaft 803 and the stirring rods 804 on the rotating shaft 801 stir and turn over the materials. At the same time, the stirring impeller 805 accelerates the flow of the raw materials, making the raw materials mix more evenly, saving energy and also improving the quality of the PE water supply pipe.
[0029] The driving pulley II 904 drives the transmission shaft 907 to rotate through the belt 906. The transmission gear 910 rotates synchronously with the transmission shaft 907 and drives the guide sleeve 701 and the calibration and forming sleeve 702 to rotate through the transmission gear ring 911 meshed therewith. The rotating calibration and forming sleeve 702 calibrates and forms the surface of the PE water supply pipe, making its surface smooth and flat and improving its yield rate.
[0030] In summary, the present utility model is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications without departing from the spirit and scope of the present utility model. The protection scope of the present utility model shall be subject to the claims of the present utility model.
[0031] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent 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 of this patent.
[0032] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
Claims
1. A PE water supply pipe extrusion molding device, including a workbench (1), a top of the workbench (1) is fixedly provided with an extrusion pipe (2), an extrusion screw (3) is rotatably arranged in the extrusion pipe (2), a feeding funnel (4) communicated with the extrusion pipe (2) is arranged above a front part of the extrusion pipe (2), and is characterized in that, A stirring device (8) is rotatably arranged in the feeding hopper (4). A heating plate (10) is fixedly arranged at the lower part of the outer side of the feeding hopper (4). An exhaust gas heating device (11) communicated with the extrusion pipe (2) is arranged at the upper part of the outer side of the feeding hopper (4) and outside the extrusion pipe (2). A die sleeve (5) communicated with the rear part of the extrusion pipe (2) is arranged at the rear part of the extrusion pipe (2). A die core (6) matched with the die sleeve (5) is fixedly arranged in the die sleeve (5). A calibration and forming device (7) matched with the die sleeve (5) is arranged at the rear part of the die sleeve (5). A power device (9) for driving the extrusion screw (3), the stirring device (8) and the calibration and forming device (7) to rotate is arranged on the workbench (1).
2. The extrusion molding device for PE water supply pipes according to claim 1, characterized in that, The stirring device (8) includes a rotating shaft (801). The rotating shaft (801) penetrates through the side wall of the feeding hopper (4) and is hermetically and rotatably connected with the feeding hopper (4) through a sealing bearing seat (802). A plurality of stirring shafts (803) fixedly connected with the rotating shaft (801) are arranged in the middle of the feeding hopper (4). A plurality of mixing rods (804) are fixedly arranged on the stirring shafts (803). Stirring impellers (805) fixedly connected with the rotating shaft (801) are symmetrically arranged on the left and right sides of the stirring shafts (803).
3. The extrusion molding device for PE water supply pipes according to claim 2, characterized in that, The exhaust gas heating device (11) includes an exhaust three-way pipe (1101). The intake end of the exhaust three-way pipe (1101) is fixedly arranged at the top of the extrusion pipe (2) and is communicated with the extrusion pipe (2). The two outlet ends of the exhaust three-way pipe (1101) are respectively communicated with a first heating pipe (1102) and a second heating pipe (1103). The first heating pipe (1102) is wound around the upper part of the outer side of the feeding hopper (4). The second heating pipe (1103) is wound around the outside of the extrusion pipe (2).
4. The extrusion molding device for PE water supply pipes according to claim 3, characterized in that The calibration and forming device (7) includes a guide sleeve (701) arranged behind the die sleeve (5). The guide sleeve (701) is rotatably arranged above the workbench (1) through a guide bearing seat (703). A calibration and forming sleeve (702) is arranged in the guide sleeve (701). The calibration and forming sleeve (702) is coaxially arranged with the die sleeve (5) and the die core (6).
5. The extrusion molding device for PE water supply pipes according to claim 4, characterized in that, The power device (9) includes a motor (901) and a transmission shaft (907). The motor (901) is fixedly arranged above the workbench (1). The output end of the motor (901) is fixedly connected to a power main shaft (902). The power main shaft (902) penetrates through the extrusion tube (2) and is fixedly connected to an extrusion screw (3). A first driving pulley (903) and a second driving pulley (904) are fixedly arranged on the power main shaft (902). A first driven pulley (905) is fixedly arranged on a rotating shaft (801) outside the feeding hopper (4). The first driving pulley (903) and the first driven pulley (905) are connected by a belt (906) for transmission. The transmission shaft (907) is rotatably arranged below the workbench (1) through a plurality of transmission bearing seats (908). A second driven pulley (909) is fixedly arranged on the transmission shaft (907). The second driven pulley (909) and the second driving pulley (904) are connected by a belt (906) for transmission. A transmission gear (910) is fixedly arranged on the transmission shaft (907). A transmission gear ring (911) is fixedly arranged outside the guide sleeve (701). The transmission gear (910) and the transmission gear ring (911) are meshed and connected.
6. A PE water supply pipe extrusion forming device as described in claim 1, characterized in that, A plurality of support columns (12) are fixedly arranged at the bottom of the workbench (1).