Plastics profile extruder

Abstract

The utility model discloses a kind of plastic section bar extruders, including extruder body, the upper end surface of the extruder body is fixedly installed with hair dryer, the outer wall of the extruder body is fixedly connected with annular blow pipe by connecting mechanism, the inner ring of the annular blow pipe is equipped with multiple blow holes that are communicated with inside, each the blow hole is in inclined state, the hair dryer outlet pipe is communicated with the inside of annular blow pipe, the outer wall of the hair dryer outlet pipe is wound with spiral cooling pipe.The utility model is by being provided with annular blow pipe, spiral cooling pipe and refrigerating device etc. component, forms the cooling system of efficient cooperation, refrigerating device steady control cooling water low temperature, spiral cooling pipe heat exchange efficiency increases, airflow speed drops, annular blow pipe inclined hole lets cold air all-around effect section bar, forms spiral airflow accelerated heat dissipation, compared with traditional air cooling, substantially improves the setting efficiency, avoid uneven cooling and cause section bar deformation, ensure size precision and surface quality.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a plastic profile extruder. Background Technology

[0002] Plastic extruders are key equipment in the plastics processing industry. They are mainly used to transform solid plastics into a uniform melt through processes such as pressurization, shearing, and plasticizing, and then mold them into various plastic products.

[0003] Plastic profile extruders are devices that melt plastic raw materials through heating and then extrude them into shapes through a die. During the extrusion process, the molten plastic needs to be cooled and solidified quickly to ensure the dimensional accuracy of the profiles. At the same time, a small amount of volatile gases may be generated during high-temperature processing. If these gases are directly emitted, they will affect the workshop environment. Existing extruders mostly use a single air-cooling structure for cooling, which has limited cooling efficiency. Air cooling is greatly affected by ambient temperature and has a slow cooling speed. In addition, most extruders are not equipped with a dedicated exhaust gas treatment structure, and the gases generated during processing diffuse directly into the workshop, which not only does not meet environmental protection requirements but may also affect the health of operators. Therefore, it is necessary to redesign a plastic profile extruder to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plastic profile extruder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic profile extruder includes an extruder body, a blower fixedly mounted on the upper surface of the extruder body, an annular blower pipe fixedly connected to the outer wall of the extruder body via a connecting mechanism, a plurality of blow holes communicating with the interior of the annular blower pipe being opened in the inner circle of the annular blower pipe, each blow hole being in an inclined state, an outlet pipe of the blower pipe communicating with the interior of the annular blower pipe, a spiral cooling pipe wound around the outer wall of the outlet pipe of the blower pipe, a water tank slidably mounted on the outer wall of the extruder body via a connecting mechanism, a filling port being opened on the upper surface of the water tank, one end of the spiral cooling pipe extending into the filling port, a circulation pump fixedly mounted on the upper surface of the water tank, an inlet pipe of the circulation pump extending into the interior of the water tank, the other end of the spiral cooling pipe being fixedly connected to the outer wall of the outlet pipe of the circulation pump, and a cooler fixedly mounted on the bottom wall of the water tank, the cold end of the cooler extending into the interior of the water tank.

[0007] Preferably, the connecting mechanism includes two connecting rods fixedly installed on the outer wall of the extruder body, and the ends of the two connecting rods are fixedly connected to the outer wall of the annular blower pipe.

[0008] Preferably, the connecting mechanism includes a connecting frame fixedly installed on the outer wall of the extruder body, the water tank being slidably installed inside the connecting frame, and the bottom wall of the connecting frame having an installation opening for cooperating with the cooler.

[0009] Preferably, a support frame is fixedly installed on the upper end face of the extruder body, and a mixed-flow fan pump and a purification box are fixedly installed on the upper end face of the support frame.

[0010] Preferably, an air suction hood is fixedly installed on the outer wall of the inlet pipe of the mixed flow fan pump, and the outlet pipe of the mixed flow fan pump extends into the interior of the purification chamber.

[0011] Preferably, multiple activated carbon purification plates are slidably installed on the upper surface of the purification box through a sliding opening, and multiple exhaust holes communicating with the interior are opened on the outer wall of the purification box.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as annular air blowing pipe, spiral cooling pipe and refrigerator, a highly efficient and coordinated cooling system is formed. The refrigerator stabilizes the low temperature of the cooling water, the spiral cooling pipe increases the heat exchange efficiency and reduces the airflow velocity, and the inclined holes of the annular air blowing pipe allow the cold air to act on the profile in all directions, forming a spiral airflow to accelerate heat dissipation. Compared with traditional air cooling, it greatly improves the shaping efficiency, avoids profile deformation caused by uneven cooling, and ensures dimensional accuracy and surface quality.

[0014] 2. By setting up components such as mixed-flow fan pumps, air suction hoods, and activated carbon purification plates, a complete waste gas treatment mechanism is constructed. The air suction hoods accurately capture harmful gases, the fan pumps efficiently deliver them to the purification chamber, and the activated carbon plates fully adsorb acidic substances and VOCs. The purified gas meets emission standards, improves the workshop environment, complies with environmental protection requirements, and protects the health of operators. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a plastic profile extruder proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0017] Figure 3 This is a side view of a plastic profile extruder proposed in this utility model.

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;

[0020] Figure 6 for Figure 3 A magnified schematic diagram of the structure at point C.

[0021] In the diagram: 1 Extruder body, 2 Blower, 3 Connecting rod, 4 Annular blower pipe, 5 Spiral cooling pipe, 6 Connecting frame, 7 Water tank, 8 Circulating pump, 9 Cooler, 10 Support frame, 11 Mixed flow fan pump, 12 Suction hood, 13 Purification box, 14 Activated carbon purification plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-6 A plastic profile extruder includes an extruder body 1, a blower 2 fixedly installed on the upper surface of the extruder body 1, an annular blower pipe 4 fixedly connected to the outer wall of the extruder body 1 through a connecting mechanism, a plurality of blower holes communicating with the interior are opened in the inner circle of the annular blower pipe 4, each blower hole is in an inclined state, the outlet pipe of the blower 2 is connected to the interior of the annular blower pipe 4, a spiral cooling pipe 5 is wound around the outer wall of the outlet pipe of the blower 2, a water tank 7 is slidably installed on the outer wall of the extruder body 1 through a connecting mechanism, a filling port is opened on the upper surface of the water tank 7, one end of the spiral cooling pipe 5 extends into the filling port, a circulation pump 8 is fixedly installed on the upper surface of the water tank 7, the inlet pipe of the circulation pump 8 extends into the interior of the water tank 7, the other end of the spiral cooling pipe 5 is fixedly connected to the outer wall of the outlet pipe of the circulation pump 8, and a cooler 9 is fixedly installed on the bottom wall of the water tank 7, the cold end of the cooler 9 extends into the interior of the water tank 7.

[0024] The connecting mechanism includes two connecting rods 3 fixedly installed on the outer wall of the extruder body 1, and the ends of the two connecting rods 3 are fixedly connected to the outer wall of the annular blow pipe 4.

[0025] Furthermore, the two connecting rods 3 are symmetrically distributed about the central axis of the extruder body 1 to ensure the stability and balance of the annular blow pipe 4 during installation.

[0026] The connecting mechanism includes a connecting frame 6 fixedly installed on the outer wall of the extruder body 1, a water tank 7 slidably installed inside the connecting frame 6, and an installation opening for cooperating with the cooler 9 on the bottom wall of the connecting frame 6.

[0027] Furthermore, the inner wall of the connecting frame 6 is provided with a guide strip, and the outer wall of the water tank 7 is provided with a guide groove that matches the guide strip, so that the water tank 7 slides more smoothly.

[0028] A support frame 10 is fixedly installed on the upper end face of the extruder body 1, and a mixed flow fan pump 11 and a purification box 13 are fixedly installed on the upper end face of the support frame 10.

[0029] Furthermore, the support frame 10 is made of high-strength alloy material, which has good load-bearing performance and ensures that the mixed flow fan pump 11 and the purification box 13 are installed stably.

[0030] A suction hood 12 is fixedly installed on the outer wall of the inlet pipe of the mixed flow fan pump 11, and the outlet pipe of the mixed flow fan pump 11 extends into the interior of the purification box 13.

[0031] Furthermore, the intake hood 12 adopts a funnel-shaped design, which can increase the gas intake range and improve the efficiency of harmful gas collection.

[0032] Multiple activated carbon purification plates 14 are slidably installed on the upper surface of the purification box 13 through a sliding opening, and multiple exhaust holes communicating with the interior are opened on the outer wall of the purification box 13.

[0033] Furthermore, an appropriate gap is left between two adjacent activated carbon purification plates 14 to ensure smooth gas flow and full contact with the activated carbon to improve the purification effect.

[0034] When using this utility model, cooling water can be injected into the water tank 7 through the filling port. Then, the cold end of the cooler 9 can cool the cooling water in the water tank 7, so that the water temperature drops to a suitable cooling range. After the cooling water temperature reaches the standard, the circulation pump 8 is started. The circulation pump 8 will pressurize and deliver the low-temperature cooling water in the water tank 7 to the spiral cooling pipe 5. Since the spiral cooling pipe 5 is tightly wrapped around the outer wall of the outlet pipe of the blower 2 in a spiral shape, the contact area between the two is greatly increased. When the low-temperature cooling water flows in the spiral cooling pipe 5, it can quickly absorb the heat of the airflow in the outlet pipe of the blower 2. At this time, the blower 2 is turned on, and the outside air enters the outlet pipe after being pressurized by the blower 2. During the heat exchange with the spiral cooling pipe 5, the airflow temperature drops rapidly, forming a low-temperature cooling air.

[0035] Low-temperature cooling air enters the annular blower pipe 4 through the outlet pipe. The annular blower pipe 4 is firmly fixed to the outer wall of the extruder body 1 by two connecting rods 3. Its center is aligned with the central axis of the extruded profile to ensure good concentricity. Multiple air holes in the inner ring of the annular blower pipe 4 are inclined towards the profile extrusion direction, so that the low-temperature cooling air can be blown all-round and without dead angles onto the surface of the high-temperature profile that has just been extruded from the mold. This inclined air blowing design not only avoids scratches on the profile surface caused by direct cold air blowing, but also forms a spiral airflow field around the profile, which accelerates the heat dissipation of the inner and outer walls of the profile, allowing the profile to quickly complete the initial shaping. The shaping efficiency is significantly improved compared with the traditional air cooling method, and the profile is cooled evenly, making it less prone to warping and deformation problems caused by uneven local shrinkage.

[0036] While the profile is being extruded and cooled, the mixed-flow fan pump 11 is started. Under its strong negative pressure, the suction hood 12 quickly captures the harmful gases generated during the profile extrusion process. The opening size of the suction hood 12 is adapted to the profile cross-section, and the edge is kept at a suitable distance from the profile surface to ensure efficient gas collection without interfering with the normal extrusion of the profile. After being pressurized by the mixed-flow fan pump 11, the captured harmful gases are transported to the purification box 13 through the pipeline. The gas entering the purification box 13 will pass through multiple activated carbon purification plates 14. These activated carbon purification plates 14 are slidably installed, and the highly adsorbent activated carbon filled inside them has been specially treated and has a good adsorption effect on acidic gases and VOCs.

[0037] After the gas undergoes thorough adsorption and purification within the purification chamber 13, the concentration of harmful substances is significantly reduced. The gas is then discharged through the exhaust vents on the outer wall of the purification chamber 13. All indicators of the emitted gas are superior to relevant standards, effectively improving the working environment of the workshop. When the color of the activated carbon purification plate 14 changes, it indicates that the adsorption capacity is close to saturation. It can be directly removed from the sliding opening at the top of the purification chamber 13 for replacement. The entire process can be completed by a single person without the aid of any tools, greatly reducing equipment maintenance costs and downtime.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic profile extruder, comprising an extruder body (1), characterized in that, A blower (2) is fixedly installed on the upper end face of the extruder body (1). An annular blower pipe (4) is fixedly connected to the outer wall of the extruder body (1) through a connecting mechanism. The annular blower pipe (4) has multiple blow holes communicating with the interior in its inner ring. Each blow hole is inclined. The outlet pipe of the blower (2) is connected to the interior of the annular blower pipe (4). A spiral cooling pipe (5) is wound around the outer wall of the outlet pipe of the blower (2). The outer wall of the extruder body (1) is slidably connected to the outer wall of the extruder body (1) through a connecting mechanism. A water tank (7) is installed on the upper surface of the water tank (7). A filling port is provided on the upper surface of the water tank (7). One end of the spiral cooling pipe (5) extends into the filling port. A circulation pump (8) is fixedly installed on the upper surface of the water tank (7). The inlet pipe of the circulation pump (8) extends into the water tank (7). The other end of the spiral cooling pipe (5) is fixedly connected to the outer wall of the outlet pipe of the circulation pump (8). A cooler (9) is fixedly installed on the bottom wall of the water tank (7). The cold end of the cooler (9) extends into the water tank (7).

2. The plastic profile extruder according to claim 1, characterized in that, The connecting mechanism includes two connecting rods (3) fixedly installed on the outer wall of the extruder body (1), and the ends of the two connecting rods (3) are fixedly connected to the outer wall of the annular blow pipe (4).

3. A plastic profile extruder according to claim 2, characterized in that, The connecting mechanism includes a connecting frame (6) fixedly installed on the outer wall of the extruder body (1), the water tank (7) is slidably installed inside the connecting frame (6), and the bottom wall of the connecting frame (6) has an installation opening that cooperates with the cooler (9).

4. A plastic profile extruder according to claim 3, characterized in that, A support frame (10) is fixedly installed on the upper end face of the extruder body (1), and a mixed flow fan pump (11) and a purification box (13) are fixedly installed on the upper end face of the support frame (10).

5. A plastic profile extruder according to claim 4, characterized in that, The inlet pipe of the mixed-flow fan pump (11) is fixedly installed with an air suction hood (12), and the outlet pipe of the mixed-flow fan pump (11) extends into the purification box (13).

6. A plastic profile extruder according to claim 5, characterized in that, The upper surface of the purification box (13) is sealed and slidably installed with multiple activated carbon purification plates (14) through sliding openings, and the outer wall of the purification box (13) is provided with multiple exhaust holes that communicate with the interior.

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