Equipment for producing plastic extrusion pipe in micro-vacuum process

Abstract

The utility model discloses equipment for producing plastic extrusion pipes in a micro-vacuum process, which comprises a vacuum setting box, a cooling box is mounted on one side of the vacuum setting box, a water pump is arranged at the upper end of one side wall of the cooling box, a pressurizing spray head is arranged at the bottom end of a water outlet pipe of the water pump, and a water tank is arranged at the bottom end in the cooling box. A water filtering plate is installed at the position, located at the upper end of the water tank, in the cooling box, and an air cooler is fixed to the upper end of one side wall in the cooling box. The plastic extrusion pipe cooling device has the beneficial effects that through the design of the water pump and the water tank, cooling water filtered out by the water filtering plate can be pumped out by the water pump for secondary utilization, waste of excessive water resources is avoided, meanwhile, the cooled plastic extrusion pipe is matched with the air cooler and the low-temperature air heater for alternate air drying, and then when passing through the drying box, the cooling effect is good. The transmission roller drives the water absorption sponge to rotate, liquid on the surface of the pipe is absorbed, and the problem that the liquid drops to the ground is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic extrusion in the micro-vacuum process production technology, specifically to a device for producing plastic extruded pipes using a micro-vacuum process. Background Technology

[0002] Plastic pipes, as a common liquid transportation material, are mostly made of various plastics. They are often produced by heating and reshaping the plastic raw materials using thermal processing. Since the production process of plastic pipes requires many complex steps, production lines are needed to accelerate the production of plastic pipes.

[0003] Existing equipment for producing plastic extruded pipes using micro-vacuum processes employs a structure where compressed air inside the pipe inflates it, and vacuum adsorption ensures the outer surface of the pipe adheres tightly to the inner surface of the sizing sleeve, guaranteeing the quality of cooling and shaping the plastic extruded pipe. While this method enables the device to shape the plastic extruded pipe, the cooling water used for shaping is mostly for single-use applications. This leads to water waste during long-term operation. Furthermore, when the cooled plastic extruded pipe exits the device, the water on its surface is not cleaned and can easily drip onto the ground, affecting the surrounding environment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a device for producing plastic extruded pipes in a micro-vacuum process that facilitates the recycling of cooling water and the cleaning of coolant on the pipe surface, in light of the current state of the technology.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes an equipment for producing plastic extruded pipes using a micro-vacuum process, including a vacuum shaping box. A cooling box is installed on one side of the vacuum shaping box. A water pump is arranged on the upper end of one side wall of the cooling box. A pressurizing nozzle is arranged at the bottom end of the water outlet pipe of the water pump. A water tank is arranged at the bottom of the cooling box. A filter plate is installed on the upper end of the water tank inside the cooling box. A cold air fan is fixed on the upper end of one side wall of the cooling box. A low-temperature hot air fan is symmetrically fixed at the lower end of the cold air fan. A drying box is arranged on one side wall of the cooling box, below the water pump. Two rows of drive rollers are symmetrically arranged on both sides inside the drying box. Water-absorbing sponges are arranged on the outer side of the drive rollers.

[0008] Furthermore, a pipe mold is connected to one side wall of the vacuum shaping box, and vacuum sizing sleeves are symmetrically fixed on the two inner walls of the vacuum shaping box. Two electric slide rails are symmetrically installed on the other two inner walls of the vacuum shaping box, and two sliding blocks are connected to the electric slide rails. A limiting roller is arranged between each pair of sliding blocks. A vacuum gauge is fixed on one side of the top of the vacuum shaping box, and a vacuum pump is provided on one side of the vacuum gauge.

[0009] By adopting the above technical solution, the vacuum shaping box uses compressed air inside the tube to inflate and vacuum adsorb the outer surface to fit tightly against the inner circular surface of the sizing sleeve, ensuring the quality of cooling and shaping of the plastic extrusion tube and realizing the production shaping of the plastic extrusion tube by the device.

[0010] Furthermore, the pipe mold and the vacuum sizing sleeve are both inserted into the vacuum shaping box, and the electric slide rail is screwed to the vacuum shaping box.

[0011] By adopting the above technical solution, the pipe mold can fix the outer diameter of the pipe, and with the design of the vacuum sizing sleeve, the inner diameter of the pipe can be fixed. This ensures that the inner and outer diameters of the device are fixed, which facilitates rapid shaping and production.

[0012] Furthermore, the limiting roller is rotatably connected to the sliding block, the vacuum gauge is screwed to the vacuum shaping box, and the vacuum pump is bolted to the vacuum shaping box.

[0013] By adopting the above technical solution, the sliding block moves relative to the electric slide rail to adjust the distance between the two limiting rollers, thereby limiting the upper and lower ends of the plastic extrusion tube by the limiting rollers. The vacuum pump can conveniently monitor the pressure value inside the vacuum shaping box at any time. The vacuum pump can extract the gas under atmospheric pressure to form a negative pressure.

[0014] Furthermore, the cooling box is screwed to the vacuum shaping box, the water pump is screwed to the cooling box, the water pump's outlet pipe is plugged into the cooling box, and the pressurized nozzle is threaded to the water pump's outlet pipe.

[0015] By adopting the above technical solution, the cooling box achieves rapid cooling of the plastic extrusion tube, ensuring the shaping effect of the device. The water pump pumps the coolant to the pressurized nozzle, which pressurizes and sprays it out. The plastic extrusion tube moves mainly by rotation, which ensures full contact between the plastic cooling tube and the coolant, thus ensuring the cooling efficiency of the device for the plastic extrusion tube.

[0016] Furthermore, the water tank is connected to the cooling tank via a slot, the filter plate is connected to the water tank via screws, and the water pump's inlet pipe is plugged into the water tank.

[0017] By adopting the above technical solution, the water tank realizes the storage of coolant. Combined with the design of the filter plate, it can realize the filtration, recycling and reuse of used coolant, thus avoiding the problem of water waste during long-term use of the device.

[0018] Furthermore, both the cold air blower and the low-temperature hot air blower are screwed to the cooling box, the drying box is screwed to the cooling box, and the transmission roller is rotatably connected to the drying box.

[0019] By adopting the above technical solution, the cold air blower and the low-temperature hot air blower alternately dry the plastic extrusion tube, and then the transmission roller drives the water-absorbing sponge to rotate, thereby absorbing the residual coolant on the surface of the plastic extrusion tube. This effectively prevents coolant residue from forming water stains on the tube surface and effectively ensures the processing effect of the device.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] To address the shortcomings of existing equipment used in micro-vacuum production of plastic extruded pipes, which uses compressed air to inflate the pipe and vacuum adsorption to ensure the outer surface is tightly adhered to the inner surface of the sizing sleeve, thus guaranteeing the quality of cooling and shaping, this invention addresses the issue of wasted water resources. While the existing equipment can shape the plastic extruded pipes, the cooling water used is often single-use, leading to water waste during long-term operation. Furthermore, the water on the pipe surface is not cleaned after cooling, causing it to drip onto the ground and impacting the surrounding environment. This invention utilizes a water pump and tank design. The cooling water filtered through a filter plate is pumped out for reuse, preventing excessive water waste. The cooled plastic extruded pipes are then alternately dried by a cold air blower and a low-temperature hot air blower. Upon passing through the drying chamber, a drive roller rotates an absorbent sponge to absorb the liquid from the pipe surface, preventing dripping. Attached Figure Description

[0023] Figure 1 This is a front view of the equipment for producing plastic extruded pipes using a micro-vacuum process, as described in this utility model.

[0024] Figure 2 This is a front cross-sectional view of the drying chamber in the equipment for producing plastic extruded pipes using a micro-vacuum process, as described in this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Vacuum gauge; 2. Vacuum sizing sleeve; 3. Pipe mold; 4. Vacuum shaping box; 5. Sliding block; 6. Electric slider; 7. Vacuum pump; 8. Pressurizing nozzle; 9. Cooling box; 10. Air cooler; 11. Water pump; 12. Drying oven; 13. Low temperature hot air blower; 14. Limiting roller; 15. Filter plate; 16. Water tank; 17. Absorbent sponge; 18. Drive roller. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] like Figures 1-2 As shown, this embodiment of a device for producing plastic extruded pipes using a micro-vacuum process includes a vacuum shaping chamber 4. The vacuum shaping chamber 4 uses compressed air inside the pipe to inflate it and vacuum adsorbs the outer surface, ensuring it is tightly pressed against the inner surface of the sizing sleeve. This guarantees the quality of cooling and shaping the plastic extruded pipe, achieving the production shaping of the plastic extruded pipe. A cooling box 9 is installed on one side of the vacuum shaping chamber 4. A water pump 11 is installed on the upper end of one side wall of the cooling box 9, and a pressurizing nozzle 8 is installed at the bottom end of the water outlet pipe of the water pump 11. The cooling box 9 achieves rapid cooling of the plastic extruded pipe, ensuring the shaping effect of the device. The water pump 11 pumps the coolant to the pressurizing nozzle 8, where it is pressurized and sprayed out. The plastic extruded pipe moves mainly by rotation, ensuring sufficient contact between the plastic cooling pipe and the coolant around its circumference, thus ensuring the cooling efficiency of the device. A water tank 16 is installed at the bottom of the cooling box 9. A filter plate 15 is installed above the water tank 16 inside the cooling box 9. The water tank 16 stores the coolant, and the design of the filter plate 15 enables the filtration, recycling, and reuse of used coolant, avoiding water waste during long-term use. A cold air blower 10 is fixed to the upper part of one side wall inside the cooling box 9, and a low-temperature hot air blower 13 is symmetrically fixed to the lower part of the cold air blower 10. The cold air blower 10 and the low-temperature hot air blower 13 alternately dry the plastic extrusion tube. A drying box 12 is set on one side wall of the cooling box 9 below the water pump 11. Two rows of drive rollers 18 are symmetrically arranged on both sides inside the drying box 12. Water-absorbing sponges 17 are arranged on the outer side of the drive rollers 18. The drive rollers 18 drive the water-absorbing sponges 17 to rotate, which realizes the absorption of residual coolant on the surface of the plastic extrusion tube. This effectively prevents coolant residue from forming water stains on the tube surface and effectively ensures the processing effect of the device.

[0029] like Figures 1-2As shown, in this embodiment, a tube mold 3 is connected to the outer side of one side wall of the vacuum forming box 4. Vacuum sizing sleeves 2 are symmetrically fixed on the two inner side walls of the vacuum forming box 4. Two electric slide rails 6 are symmetrically installed on the other two inner side walls of the vacuum forming box 4. Two sliding blocks 5 are connected to the electric slide rails 6. A limiting roller 14 is arranged between each pair of sliding blocks 5. A vacuum gauge 1 is fixed to one side of the top of the vacuum forming box 4. A vacuum pump 7 is set on one side of the vacuum gauge 1. The vacuum forming box 4 is blown by compressed air in the tube and the outer surface is tightly attached to the inner circle surface of the sizing sleeve by vacuum adsorption, which ensures the quality of cooling and shaping of the plastic extruded tube and realizes the production shaping of the plastic extruded tube by the device. The tube mold 3 and the vacuum sizing sleeve 2 are both inserted into the vacuum forming box 4. The electric slide rail 6 is screwed to the vacuum forming box 4. The tube mold 3 can fix the outer circle diameter of the tube. With the design of the vacuum sizing sleeve 2, the inner circle diameter of the tube can be fixed. After the inner and outer diameters of the device are fixed, it is convenient to quickly shape and produce the tube.

[0030] like Figures 1-2 As shown, in this embodiment, the limiting roller 14 is rotatably connected to the sliding block 5, the vacuum gauge 1 is screwed to the vacuum shaping box 4, and the vacuum pump 7 is bolted to the vacuum shaping box 4. The sliding block 5 moves relative to the electric slide rail 6 to adjust the distance between the two limiting rollers 14, thereby limiting the upper and lower ends of the plastic extrusion tube by the limiting rollers 14. The vacuum pump 7 facilitates the monitoring of the pressure value inside the vacuum shaping box 4 at any time. The vacuum pump 7 can extract the gas under atmospheric pressure to form a negative pressure. The cooling box 9 is connected to the vacuum shaping box. 4. Screw connection: Water pump 11 is screwed to cooling tank 9, water outlet pipe of water pump 11 is plugged into cooling tank 9, and pressurized nozzle 8 is threaded to water outlet pipe of water pump 11. Cooling tank 9 achieves rapid cooling of plastic extrusion tube, ensuring the shaping effect of the device. Water pump 11 pumps coolant to pressurized nozzle 8, which then sprays it out under pressure. The plastic extrusion tube moves mainly by rotation, which ensures full contact between the plastic cooling tube and the coolant around one revolution, ensuring the cooling efficiency of the device for the plastic extrusion tube.

[0031] like Figures 1-2As shown, in this embodiment, the water tank 16 is connected to the cooling tank 9 via a slot, the filter plate 15 is connected to the water tank 16 with screws, and the inlet pipe of the water pump 11 is inserted into the water tank 16. The water tank 16 stores the coolant. With the design of the filter plate 15, the used coolant can be filtered, recycled, and reused, avoiding the problem of water waste during long-term use of the device. The cold air blower 10 and the low-temperature hot air blower 13 are both connected to the cooling tank 9 with screws, the drying box 12 is connected to the cooling tank 9 with screws, and the transmission roller 18 is rotatably connected to the drying box 12. The cold air blower 10 and the low-temperature hot air blower 13 alternately dry the plastic extrusion tube. Then, in conjunction with the transmission roller 18, the water-absorbing sponge 17 rotates, realizing the absorption of the residual coolant on the surface of the plastic extrusion tube. This effectively prevents the coolant from remaining on the surface of the tube and forming water stains, effectively ensuring the processing effect of the device.

[0032] The specific implementation process of this embodiment is as follows: When using the device, it needs to be placed in an appropriate position and connected to an external power source. The plastic extrusion tube to be processed is then passed through the vacuum forming chamber 4, cooling chamber 9, and drying chamber 12. When the vacuum forming tube passes through the tube mold, the outer diameter of the tube is fixed. In conjunction with the design of the vacuum sizing sleeve 2, the inner diameter of the tube is fixed. With the sliding block 5 driving the two limiting rollers 14 to move relative to each other, the position of the tube inside the device is limited. The vacuum pump 7 extracts the air from the vacuum forming chamber 4, and the compressed air inside the tube inflates and... The vacuum adsorption outer surface is tightly attached to the tube surface, ensuring the quality of cooling and shaping of the plastic extruded tube. After the tube is shaped, the pump extracts the coolant from the water tank 16. With the design of the pressurized nozzle 8, the coolant is evenly sprayed on the surface of the tube, achieving rapid cooling of the tube. With the design of the filter plate 15, the device can filter and reuse the coolant. The plastic extruded tube is alternately dried by the cold air fan 10 and the low temperature hot air fan 13. With the transmission roller 18 driving the water-absorbing sponge 17 to rotate, water droplets on the surface of the tube are adsorbed, which can effectively ensure the cleaning of the coolant on the surface of the plastic extruded tube.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Equipment for producing plastic extruded pipes using a micro-vacuum process, characterized in that: The system includes a vacuum shaping box (4), a cooling box (9) installed on one side of the vacuum shaping box (4), a water pump (11) installed on the upper end of one side wall of the cooling box (9), a pressurizing nozzle (8) installed at the bottom end of the water outlet pipe of the water pump (11), a water tank (16) installed at the bottom of the cooling box (9), a filter plate (15) installed on the upper end of the water tank (16) inside the cooling box (9), a cold air blower (10) fixed on the upper end of one side wall inside the cooling box (9), a low-temperature hot air blower (13) symmetrically fixed on the lower end of the cold air blower (10), a drying box (12) installed on one side wall of the cooling box (9) on the side below the water pump (11), two rows of drive rollers (18) symmetrically arranged on both sides inside the drying box (12), and water-absorbing sponges (17) arranged on the outer side of the drive rollers (18).

2. The equipment for producing plastic extruded pipes using a micro-vacuum process according to claim 1, characterized in that: A pipe mold (3) is connected to the outside of one side wall of the vacuum shaping box (4). Vacuum sizing sleeves (2) are symmetrically fixed on the two inner side walls of the vacuum shaping box (4). Two electric slide rails (6) are symmetrically installed on the other two inner side walls of the vacuum shaping box (4). Two sliding blocks (5) are connected to the electric slide rails (6). A limiting roller (14) is arranged between each pair of sliding blocks (5). A vacuum gauge (1) is fixed on one side of the top of the vacuum shaping box (4). A vacuum pump (7) is provided on one side of the vacuum gauge (1).

3. The equipment for producing plastic extruded pipes using a micro-vacuum process according to claim 2, characterized in that: The pipe mold (3) and the vacuum sizing sleeve (2) are both inserted into the vacuum shaping box (4), and the electric slide rail (6) is screwed to the vacuum shaping box (4).

4. The equipment for producing plastic extruded pipes using a micro-vacuum process according to claim 2, characterized in that: The limiting roller (14) is rotatably connected to the sliding block (5), the vacuum gauge (1) is screwed to the vacuum shaping box (4), and the vacuum pump (7) is bolted to the vacuum shaping box (4).

5. The equipment for producing plastic extruded pipes using a micro-vacuum process according to claim 1, characterized in that: The cooling box (9) is screwed to the vacuum shaping box (4), the water pump (11) is screwed to the cooling box (9), the water outlet pipe of the water pump (11) is plugged into the cooling box (9), and the pressurizing nozzle (8) is threaded to the water outlet pipe of the water pump (11).

6. The equipment for producing plastic extruded pipes using a micro-vacuum process according to claim 1, characterized in that: The water tank (16) is connected to the cooling tank (9) by a slot, the filter plate (15) is connected to the water tank (16) by screws, and the water inlet pipe of the water pump (11) is inserted into the water tank (16).

7. The equipment for producing plastic extruded pipes using a micro-vacuum process according to claim 1, characterized in that: The air cooler (10) and the low-temperature hot air blower (13) are both screwed to the cooling box (9), the drying box (12) is screwed to the cooling box (9), and the transmission roller (18) is rotatably connected to the drying box (12).

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