A thermal insulation HDPE pipe material and production equipment

Abstract

The present invention relates to the technical field of pipeline material production, and in particular to a heat-insulating HDPE pipeline material and production equipment. Technical problem: HDPE pipelines are prone to generate static electricity, which may cause the inner wall of the pipeline to absorb particles or powders in the liquid, affecting the material transportation efficiency. The production steps of the heat-insulating HDPE pipeline are as follows: Step 1: Put high-density polyethylene resin, antioxidant, UV stabilizer, pigment, lubricant and flame retardant into a stirring kettle and stir until mixed; Step 2: Put the mixed material into an extruder, further stir and melt the material through the extruder, and then extrude to form an HDPE pipeline and cool it; Step 3: Use an adhesive to bond the polyurethane insulation layer to the outer protective layer of the HDPE pipeline in step 2. The present invention reduces the surface resistivity of the HDPE pipeline and accelerates the dissipation of static charge by adding an antistatic agent to the middle of the high-density polyethylene resin, thereby effectively preventing the accumulation of static electricity and the occurrence of static electricity discharge.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline material production, and in particular to a heat-insulating HDPE pipeline material and production equipment. Background Art

[0002] HDPE pipe is a plastic pipe made of high-density polyethylene. Since HDPE is a non-toxic material with excellent performance, it is widely used in water supply, sewage discharge, agricultural irrigation, chemical liquid transportation, slurry transportation, gas transportation and other fields.

[0003] Existing HDPE pipes also have some defects. HDPE is a non-conductive material with a high surface resistivity. The friction between the pipe and the external environment can easily generate static electricity. If the static electricity cannot be released in time, it will accumulate on the inner and outer surfaces of the pipe, forming a high electrostatic potential difference. When the static electricity accumulates to a certain extent, it may cause electrostatic discharge. In addition, the accumulation of static electricity may cause the inner wall of the pipe to adsorb particles or powder in the liquid, affecting the material transportation efficiency.

[0004] During the extrusion production process of HDPE pipes, when the high-density polyethylene material first enters the extruder, the high-density polyethylene particles can only contact the lower side of the extruder. It is difficult for the high-density polyethylene particles to heat up and melt uniformly, resulting in crystal points on the HDPE pipe, a rough surface and uneven color, and even poor material flow in the extruder, causing the equipment to overheat. Summary of the invention

[0005] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a heat-insulating HDPE pipe material and production equipment.

[0006] Technical solution: A thermal insulation type HDPE pipe material, characterized in that the thermal insulation type HDPE pipe material is made according to the following parts:

[0007] High-density polyethylene resin 95%;

[0008] Antioxidant 1%;

[0009] UV stabilizer 0.5%;

[0010] Pigment 2%;

[0011] Lubricant 0.8%;

[0012] Antistatic agent 0.7%;

[0013] The production steps of the thermal insulation HDPE pipe are as follows:

[0014] Step 1: Put high-density polyethylene resin, antioxidant, UV stabilizer, pigment, lubricant and flame retardant into a stirring kettle and stir until mixed;

[0015] Step 2: Put the mixed materials into the extruder, further stir and melt the materials through the extruder, and then extrude to form HDPE pipes and cool them;

[0016] Step 3: Use an adhesive to bond the polyurethane insulation layer to the outer protective layer of the HDPE pipe in step 2.

[0017] A production equipment for heat-insulating HDPE pipe materials, including a support plate, a control panel is installed on one side of the support plate, a first support cylinder is fixedly connected to the side of the support plate away from the control panel through a mounting plate, the first support cylinder is rotatably connected to a connecting cylinder, the support plate is fixedly connected to a second support cylinder rotatably connected to the connecting cylinder through the mounting plate, the second support cylinder is fixedly connected to a third support cylinder at one end away from the connecting cylinder, a mold head is installed on the third support cylinder, the first support cylinder is rotatably connected to a rotating shaft, the rotating shaft passes through the connecting cylinder, the second support cylinder and the third support cylinder, the rotating shaft is fixedly connected to a first auger located in the first support cylinder, the rotating shaft is fixedly connected to a second auger located in the second support cylinder, the rotating shaft is fixedly connected to the third auger and a fan-shaped plate distributed circumferentially and at equal intervals, the third auger and the fan-shaped plates distributed circumferentially and at equal intervals. The plates are all located in the third support cylinder, and the side of the support plate away from the mold head is fixedly connected to the first motor through the mounting plate, and the output shaft of the first motor and the rotating shaft are transmitted through a gear set, and the connecting cylinder is fixedly connected to a fixed cylinder with circumferentially equal spacing and sealed with the connecting cylinder, and the support plate is fixedly connected to the second motor, and the first motor and the second motor are both electrically connected to the control panel, and a gear ring is arranged on the outer side of the connecting cylinder, and the output shaft of the second motor is transmitted to the gear ring on the connecting cylinder through a gear, and symmetrical connecting rings are fixedly connected to the outer side of the connecting cylinder, and a rotating sleeve is connected to the symmetrical connecting rings for common rotation, and the rotating sleeve is sealed with the symmetrical connecting rings, and the connecting cylinder, the fixed cylinder with circumferentially equal spacing and the rotating sleeve cooperate to form a closed cavity, and the rotating sleeve is fixedly connected and connected to a conduit connected to the oil inlet and the oil return port of the hot oil circulation device.

[0018] In addition, it is particularly preferred that the radius of the sector plates distributed circumferentially and at equal intervals increases successively in a direction away from the third auger, and the sector plates are in contact and fit with the inner wall of the third support cylinder.

[0019] In addition, it is particularly preferred that the fixing tube is in a truncated cone shape, and the diameter of the fixing tube on a side close to the first supporting tube is smaller than the diameter of the fixing tube on a side close to the second supporting tube.

[0020] In addition, it is particularly preferred that an anti-blocking mechanism is also included, which is arranged between the connecting tube and the second supporting tube, and is used to dredge the material in the fixed tube with circumferentially equal spacing, and the anti-blocking mechanism includes toothed rings with circumferentially equal spacing, and the toothed rings with circumferentially equal spacing are respectively rotatably connected to the side of the adjacent fixed tube close to the first supporting tube, the inner ring of the toothed ring is fixedly connected to the first connecting plate, the inner wall of the fixed tube is fixedly connected to the second connecting plate, a support column is arranged between the second connecting plate and the adjacent first connecting plate, and the support column is fixedly connected to the adjacent first connecting plate , the support column is rotatably connected to the adjacent second connecting plate, the support column is fixedly connected with a fourth auger, the fourth auger is located in the adjacent fixed cylinder, the fourth auger contacts the inner wall of the adjacent fixed cylinder, the rotating shaft is fixedly connected with a toothed ring, the toothed ring is rotatably connected to the side of the connecting cylinder close to the first supporting cylinder, the toothed ring and the toothed ring with circumferentially equal spacing are both transmission matched, the connecting cylinder close to the first supporting cylinder is fixedly connected with a cover plate, the cover plate is provided with through holes with circumferentially equal spacing, the through holes of the cover plate are connected with the adjacent fixed cylinder, and the cover plate is rotatably connected to the rotating shaft.

[0021] In addition, it is particularly preferred that an auxiliary mixing mechanism is also included, which is arranged in the second supporting cylinder, and the auxiliary mixing mechanism is used to assist the rapid mixing of high-density polyethylene resin particles and additives, and the auxiliary mixing mechanism includes a sliding rod, which is slidably connected to the middle part of the rotating shaft, an electric push rod is fixedly connected to the mounting frame of the first motor, and the electric push rod is electrically connected to the control panel, the telescopic end of the electric push rod is rotatably connected to the sliding rod, and the rotating shaft is slidably connected to a sliding sleeve, and the sliding sleeve is slidably matched with the second auger, the rotating shaft is provided with symmetrical sliding grooves, and the inner wall of the sliding sleeve is fixedly connected to symmetrical mounting plates, and the symmetrical mounting plates of the sliding sleeve are respectively slidably connected to the symmetrical sliding grooves of the rotating shaft, the mounting plate of the sliding sleeve is fixedly connected to the sliding rod, and the outer wall of the sliding sleeve is fixedly connected to a fifth auger, and the fifth auger is wound between the second augers.

[0022] In addition, it is particularly preferred that the diameters of the two sides of the second support tube are smaller than the diameter of the middle portion, and the second auger is in contact with the inner wall of the second support tube.

[0023] In addition, it is particularly preferred that an auxiliary temperature control mechanism is also included, which is arranged in the third support cylinder, and the auxiliary temperature control mechanism is used to flip the material. The auxiliary temperature control mechanism includes a fixed block, and the fixed block is fixedly connected to the inner wall of the third support cylinder. The fixed block is provided with through holes with circumferential equal spacing, and a torsion plate is fixed in the through holes of the fixed block, and the torsion plate is used to flip the flowing material. A detection and adjustment component is provided between the third support cylinder and the fixed block, and the detection and adjustment component is used to detect the viscosity of the material flowing through the through holes of the fixed block.

[0024] In addition, it is particularly preferred that the detection and adjustment component includes sliding rings with circumferentially equal spacing, the sliding rings with circumferentially equal spacing are respectively slidably connected to the adjacent through holes of the fixed block, the sliding rings are sealed and matched with the inner walls of the adjacent through holes of the fixed block, the fixed block and the third support cylinder are both provided with sliding grooves with circumferentially equal spacing, the third support cylinder and the sliding grooves adjacent to the fixed block are interconnected, the third support cylinder and the sliding grooves adjacent to the fixed block are jointly slidably connected with a third connecting plate, the third connecting plate is fixedly connected to the adjacent sliding rings, the outer side of the third support cylinder is fixedly connected with mounting plates with circumferentially equal spacing, a tension spring is fixedly connected between the third connecting plate and the mounting plates adjacent to the third support cylinder, the fixed block is provided with arc cavities with circumferentially equal spacing, and the outer side of the third support cylinder is provided with a temperature control component, and the temperature control component is used to control the flow rate of hot oil in the arc cavity.

[0025] In addition, it is particularly preferred that the temperature control component includes a first annular tube, which is sleeved on the outer side of the third supporting tube, the first annular tube is fixedly connected and connected with an oil inlet pipe with circumferential equal spacing, the oil inlet pipe passes through the third supporting tube and the fixed block and is connected with the adjacent arc-shaped cavity, the outer side of the third supporting tube is sleeved with a second annular tube, the second annular tube is fixedly connected and connected with an oil outlet pipe with circumferential equal spacing, the oil outlet pipe passes through the third supporting tube and the fixed block and is connected with the adjacent arc-shaped cavity, the first annular tube and the second annular tube are both equipped with oil guide ports, the oil guide ports on the first annular tube and the second annular tube are respectively connected with the oil inlet and oil return ports of the hot oil circulation device, the oil inlet pipe is installed with a flow control valve, the adjusting rod of the flow control valve is installed with a gear, the third connecting plate is fixedly connected with a rack, and the rack meshes with the gear on the adjacent flow control valve.

[0026] Beneficial effects: 1. The present invention reduces the surface resistivity of the HDPE pipe and accelerates the dissipation of static charge by adding an antistatic agent into the middle of the high-density polyethylene resin, thereby effectively preventing the accumulation of static electricity and the occurrence of static electricity discharge.

[0027] 2. The present invention utilizes a rotating fixed cylinder to make the material entering the fixed cylinder roll and fully contact with the inner wall of the fixed cylinder, thereby improving the efficiency of heat exchange between the material and the hot oil, improving the melting efficiency of the material, and avoiding uneven melting of the material, which leads to crystal points on the HDPE pipe, a rough surface and uneven color.

[0028] 3. The present invention utilizes the fourth auger to push the material in the adjacent fixed cylinder to the left, so as to prevent some materials from being partially melted due to long-term contact with the inner wall of the fixed cylinder, resulting in obstruction in the process of the material moving to the left and causing blockage in the fixed cylinder.

[0029] 4. The present invention utilizes the fifth auger and the second auger to extrude and mix the materials, and at the same time, under the guiding effect of the second support cylinder, the materials are stirred, thereby improving the mixing effect between the high-density polyethylene resin and the additive.

[0030] 5. The present invention utilizes a torsion plate to flip the material, and flips the material on the outside of the four through holes of the fixed block to the inside, so that the part of the material that is not fully melted is close to the adjacent arc cavity, thereby heating the material flipped to the outside.

[0031] 6. The present invention adjusts the opening of the flow control valve by the distance that the sliding ring moves to the left, thereby increasing the flow rate through the oil inlet pipe and accelerating the melting speed of the material in the through hole of the fixed block. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 2 It is a cross-sectional view of the second support tube and the third support tube of the present invention;

[0034] Figure 3 is a cross-sectional view of the first support cylinder of the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the fan-shaped plate and the third auger of the present invention;

[0036] Figure 5 It is a cross-sectional view of the connecting cylinder and the rotating sleeve of the present invention;

[0037] Figure 6 is a cross-sectional view of the fixing cylinder and the cover plate of the present invention;

[0038] Figure 7 It is a cross-sectional view of the rotating sleeve and the cover plate of the present invention;

[0039] Figure 8 It is a side view of the connecting cylinder and the toothed ring of the present invention;

[0040] Fig. 9It is a schematic diagram of the three-dimensional structure of the sliding rod and the electric push rod of the present invention;

[0041] Fig.10 is a cross-sectional view of the second support tube of the present invention;

[0042] Fig.11 An exploded view of the second support cylinder and the second auger of the present invention;

[0043] Fig.12 is a cross-sectional view of the third support cylinder of the present invention;

[0044] Fig.13 It is a cross-sectional view of the fixing block and the third supporting cylinder of the present invention;

[0045] Fig.14 It is a schematic diagram of the three-dimensional structure of the third connecting plate and the rack of the present invention.

[0046] In the figure: 1, support plate, 2, first support cylinder, 3, connecting cylinder, 4, second support cylinder, 5, third support cylinder, 6, mold head, 7, rotating shaft, 8, first auger, 801, second auger, 9, fan-shaped plate, 10, third auger, 11, first motor, 110, fixed cylinder, 12, second motor, 13, connecting ring, 14, rotating sleeve, 15, toothed ring, 16, first connecting plate, 17, second connecting plate, 18. Support column, 19. Fourth auger, 20. Toothless ring, 21. Cover plate, 22. Sliding rod, 23. Electric push rod, 25. Sliding sleeve, 26. Fifth auger, 27. Fixed block, 28. Torsion plate, 29. Sliding ring, 30. Third connecting plate, 31. Tension spring, 32. Arc cavity, 33. First annular tube, 34. Oil inlet pipe, 35. Second annular tube, 36. Oil outlet pipe, 37. Flow control valve, 38. Rack. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention. The "material" mentioned in this application is the product after the high-density polyethylene resin particles and the additives are mixed.

[0048] It has been found that HDPE is a non-conductive material with a high surface resistivity. The friction between the pipeline and the external environment easily generates static electricity. When the HDPE pipeline transports particles or powders, the particles or powders will be adsorbed on the inner wall of the HDPE pipeline, affecting the transportation efficiency of the materials. Based on the above situation, a heat-insulating and anti-static HDPE pipeline material is designed. The specific implementation method is as follows:

[0049] Embodiment 1: A heat-insulating HDPE pipe material, characterized in that the heat-insulating HDPE pipe material is made according to the following parts:

[0050] High-density polyethylene resin 95%;

[0051] Antioxidant 1%;

[0052] UV stabilizer 0.5%;

[0053] Pigment 2%;

[0054] Lubricant 0.8%;

[0055] Antistatic agent 0.7%;

[0056] The production steps of thermal insulation HDPE pipe are as follows:

[0057] Step 1: Put high-density polyethylene resin, antioxidant, UV stabilizer, pigment, lubricant and flame retardant into a stirring kettle and stir until mixed;

[0058] Step 2: Put the mixed materials into the extruder, further stir and melt the materials through the extruder, and then extrude to form HDPE pipes and cool them;

[0059] Step 3: Use an adhesive to bond the polyurethane insulation layer to the outer protective layer of the HDPE pipe in step 2.

[0060] It has been found that during the heating and extrusion of high-density polyethylene resin, the material is initially accumulated only at the bottom, resulting in some high-density polyethylene resin particles not being heated in time, which in turn leads to insufficient melting of the high-density polyethylene resin material and reduced quality of the produced HDPE pipe. Based on the above situation, a heat-insulating and antistatic HDPE pipe production device is designed, and the specific implementation method is as follows:

[0061] Embodiment 2: A production device for heat-insulating HDPE pipe materials, such as Figure 1-Figure 9, including a support plate 1, a control panel is installed on the left side of the support plate 1, a first support tube 2 is fixedly connected to the right side of the support plate 1 through a mounting plate, the first support tube 2 is rotatably connected to a connecting tube 3, the first support tube 2 and the connecting tube 3 are interconnected, the support plate 1 is fixedly connected to a second support tube 4 rotatably connected to the connecting tube 3 through the mounting plate, the left end of the second support tube 4 is fixedly connected to a third support tube 5, the third support tube 5 is installed with a mold head 6, the outer sides of the first support tube 2, the second support tube 4 and the third support tube 5 are all installed with a heating device, the above-mentioned heating device is an existing device and is not shown in the accompanying drawings, the first support tube 2 is rotatably connected to a rotating shaft 7, the rotating shaft 7 passes through the connecting tube 3, the second support tube 4 and the third support tube 5, the rotating shaft 7 is fixedly connected to the first support tube 2 The first auger 8 inside the first support tube 2 contacts and slides with the inner wall of the first support tube 2. The first auger 8 is used to push the high-density polyethylene resin particles to the left. The rotating shaft 7 is fixedly connected with the second auger 801 located in the second support tube 4. The second auger 801 contacts and slides with the inner wall of the second support tube 4. The rotating shaft 7 is fixedly connected with the third auger 10 and the circumferential and evenly spaced fan-shaped plates 9. The third auger 10 and the circumferential and evenly spaced fan-shaped plates 9 are all located in the third support tube 5. The fan-shaped plates 9 are used to stir the molten material. The third auger 10 is used to extrude the material so that the molten material is squeezed out of the die head 6. The right side of the support plate is fixedly connected with the first motor 11 through the mounting plate. The first motor 11 is a reduction motor. The output shaft of the first motor 11 is connected to the rotating shaft 7 is transmitted through a gear set, the connecting cylinder 3 is fixedly connected with five fixed cylinders 110 which are all sealed with the connecting cylinder 3, the inner side surface of the fixed cylinder 110 is a smooth surface, the support plate 1 is fixedly connected with a second motor 12, the second motor 12 is set as a servo motor, the first motor 11 and the second motor 12 are both electrically connected to the control panel, a gear ring is arranged on the outer side of the connecting cylinder 3, the output shaft of the second motor 12 is transmitted with the gear ring on the connecting cylinder 3 through the gear, the gear on the output shaft of the second motor 12 is transmitted with the gear ring on the connecting cylinder 3, so that the connecting cylinder 3 rotates circumferentially along the first support cylinder 2 and the second support cylinder 4, the outer side of the connecting cylinder 3 is fixedly connected with two symmetrical connecting rings 13, the two connecting rings 13 are connected with a rotating sleeve 14 for common rotation, the rotating sleeve 14 is connected with the symmetrical connecting ring 1 3 are all sealed and matched, the connecting cylinder 3, the fixed cylinder 110 with equal circumferential spacing and the rotating sleeve 14 cooperate to form a closed cavity. After the hot oil flows through the above cavity, the heat of the hot oil will be transferred to the outside of the five fixed cylinders 110, and the fixed cylinder 110 will then exchange heat with the material inside it. The rotating sleeve 14 is fixedly connected and connected to a conduit connected to the oil inlet and oil return port of the hot oil circulation device. The radius of the fan-shaped plates 9 distributed circumferentially and at equal intervals increases successively in the direction away from the third auger 10. The fan-shaped plates 9 of different sizes improve the stirring effect on the material, and the fan-shaped plates 9 are in contact with the inner wall of the third support cylinder 5. The fixed cylinder 110 is truncated cone-shaped, and the diameter of the right side of the fixed cylinder 110 is smaller than that of the left side. After the high-density polyethylene resin particles enter the fixed cylinder 110,It will slide to the right along the inclined surface of the fixed cylinder 110 under the action of its own gravity.

[0062] When the device is needed to produce HDPE pipes, the staff will mix the high-density polyethylene resin, antioxidant, UV stabilizer, pigment, lubricant and antistatic agent evenly to obtain the material to be extruded, and then place the mixed material in a feeding device connected to the first support cylinder 2. The heating devices installed on the outside of the first support cylinder 2, the second support cylinder 4 and the third support cylinder 5 are all in working condition, which are used to melt the mixed material. The staff presses the start button of the control panel, and the control panel then starts the first motor 11 and the second motor 12, and the staff starts the feeding device, and the material enters the first support cylinder 2. The output shaft of the first motor 11 rotates the rotating shaft 7 circumferentially through gear transmission, and the rotating shaft 7 drives the first auger 8, the second auger 801, the fan plate 9 and the third auger 10 to rotate synchronously. The material entering the first support cylinder 2 begins to move to the left under the push of the first auger 8, and the material moves to the left along the bottom of the first support cylinder 2. The material is in a heating state during the movement to the left.

[0063] In the above process, the staff starts the hot oil circulation device, and the heated hot oil flows along the cavity formed by the connecting tube 3, the fixed tube 110 and the rotating sleeve 14. The second motor 12 meshes with the gear ring on the connecting tube 3 through the gear on the output shaft, so that the connecting tube 3 rotates along the first supporting tube 2 and the second supporting tube 4. The rotation direction of the connecting tube 3 is opposite to the rotation direction of the rotating shaft 7. Since the conduit on the rotating sleeve 14 is connected to the hot oil circulation device, the rotating sleeve 14 does not rotate. The connecting tube 3 drives the two connecting rings 13 to rotate along the rotating sleeve 14, and the connecting tube 3 drives the five fixed tubes 110 Circumferential rotation, when the fixed cylinder 110 rotates to the lowermost part, the material moving to the left along the first support cylinder 2 will move into the fixed cylinder 110. Since the fixed cylinder 110 is configured in a truncated cone shape, the material entering into the fixed cylinder 110 begins to slide to the left under the action of its own gravity, and at the same time, the fixed cylinder 110 rotates circumferentially around the rotating shaft 7, so that the material slides to the left along the fixed cylinder 110 and slides circumferentially at the same time, and then the material entering into the fixed cylinder 110 will roll and fully contact with the inner wall of the fixed cylinder 110, thereby improving the efficiency of heat exchange between the material and the hot oil, and improving the melting efficiency of the material.

[0064] After the material has fully exchanged heat with the hot oil, it is close to the melting temperature. The material moves to the left along the inner wall of the fixed cylinder 110 and enters the second support cylinder 4 and the third support cylinder 5. The rotating shaft 7 drives the second auger 801, the fan plate 9 and the third auger 10 to rotate synchronously. The material entering the third support cylinder 5 continues to move to the left and is heated under the push of the second auger 801. At this time, the material has begun to melt. When the material contacts the fan plate 9, the circumferentially and evenly spaced fan plates 9 begin to stir the molten material, so that the material is further stirred, so that the high-density polyethylene resin and the various additives added are fully integrated. At the same time, the fan plate 9 The material is stirred so that all parts of the material are in full contact with the inner wall of the third support tube 5 and completely exchange heat. The material after stirring by the fan-shaped plate 9 is pushed into the third support tube 5 and continued to be pushed to the left by the third auger 10 until the material moves to the die head 6. Under the thrust of the third auger 10, the melted material is extruded from the die head 6 and cooled to form an HDPE pipe. When the material is processed, the staff turns off the device through the control panel. At the same time, the staff turns off the heating device and the hot oil circulation device on the outside of the first support tube 2, the second support tube 4 and the third support tube 5. When the device is cooled, the staff cleans the inside of the device for next use.

[0065] Embodiment 3: Based on embodiment 2, Figure 6-Figure 8, also includes an anti-blocking mechanism, which is arranged between the connecting tube 3 and the second supporting tube 4, and is used to dredge the materials in the five fixed tubes 110, and the anti-blocking mechanism includes five toothed rings 15 with equal circumferential spacing, and the five toothed rings 15 are respectively rotatably connected to the right sides of adjacent fixed tubes 110, and the five toothed rings 15 are located on the left side of the connecting tube 3, and the inner ring of the toothed ring 15 is fixedly connected with a first connecting plate 16, and the inner wall of the fixed tube 110 is fixedly connected with a second connecting plate 17, and a support column 18 is arranged between the second connecting plate 17 and the adjacent first connecting plate 16, and the support column 18 is fixedly connected to the adjacent first connecting plate 16, and the support column 18 is rotatably connected to the adjacent second connecting plate 17, and during the rotation of the toothed ring 15, the toothed ring 15 drives the adjacent The support column 18 rotates, and the support column 18 always coincides with the central axis of the adjacent fixed cylinder 110. The support column 18 is fixedly connected with a fourth auger 19, and the fourth auger 19 is located in the adjacent fixed cylinder 110. The fourth auger 19 contacts the inner wall of the adjacent fixed cylinder 110, and the fourth auger 19 is used to dredge the material in the fixed cylinder 110. The rotating shaft 7 is fixedly connected with a toothless ring 20, and the toothless ring 20 is rotatably connected to the right side of the connecting cylinder 3. The toothless ring 20 is located in the middle position of the five toothed rings 15, and the toothless ring 20 is meshed with the five toothed rings 15 in sequence. The toothless ring 20 will mesh with the five toothed rings 15 in sequence. A cover plate 21 is fixedly connected to the right side of the connecting cylinder 3, and the cover plate 21 is provided with five through holes. The through holes of the cover plate 21 are connected to the adjacent fixed cylinder 110, and the cover plate 21 is rotatably connected to the rotating shaft 7.

[0066] The material enters the five fixed barrels 110 in a rotating state under the driving action of the first auger 8. In the above process, the rotating shaft 7 drives the toothless ring 20 to rotate synchronously. When the teeth of the toothless ring 20 are meshed with the toothed ring 15, the toothed ring 15 drives the adjacent support column 18 to rotate circumferentially through the first connecting plate 16. The support column 18 rotates along the adjacent second connecting plate 17. The support column 18 drives the fourth auger 19 fixed thereon to rotate. The fourth auger 19 rotates along the inner wall of the adjacent fixed barrel 110. The fourth auger 19 is used to push the material in the adjacent fixed barrel 110 to the left to avoid partial material contacting the inner wall of the fixed barrel 110 for a long time and causing partial melting, resulting in obstruction in the process of material moving to the left, causing blockage in the fixed barrel 110. When the toothless ring 20 loses contact with the toothed ring 15, the fourth auger 19 here stops moving. During the above process, the fourth auger 19 in the five fixed barrels 110 will rotate in sequence.

[0067] Embodiment 4: Based on embodiment 3, Figure 9-11, also includes an auxiliary mixing mechanism, the auxiliary mixing mechanism is arranged in the second support cylinder 4, the auxiliary mixing mechanism is used to assist the rapid mixing between the high-density polyethylene resin particles and the additives, the auxiliary mixing mechanism includes a sliding rod 22, a cavity is arranged in the middle of the rotating shaft 7, the sliding rod 22 is slidably connected to the cavity of the rotating shaft 7, an electric push rod 23 electrically connected to the control panel is fixedly connected to the mounting frame of the first motor 11, the telescopic end of the electric push rod 23 is rotatably connected to the sliding rod 22, and the rotating shaft 7 drives the sliding rod 22 in the middle thereof to rotate synchronously, when the telescopic end of the electric push rod 23 reciprocates left and right, the sliding rod 22 slides left and right along the rotating shaft 7, the rotating shaft 7 is slidably connected with a sliding sleeve 25, the sliding sleeve 25 is slidably matched with the second auger 801, the rotating shaft 7 is provided with two symmetrical sliding grooves, the sliding sleeve 25 is sealed with the rotating shaft 7, and the sliding sleeve 25 always seals the two slide grooves of the rotating shaft 7, the inner wall of the sliding sleeve 25 is fixedly connected with two symmetrical mounting plates, the two mounting plates of the sliding sleeve 25 are respectively slidably connected in the symmetrical slide grooves of the rotating shaft 7, the mounting plate of the sliding sleeve 25 is fixedly connected to the sliding rod 22, the sliding sleeve 25 moves synchronously with the sliding rod 22 through the mounting plate thereon, the sliding sleeve 25 and the second auger 801 slide relative to each other, the outer wall of the sliding sleeve 25 is fixedly connected with the fifth auger 26, the fifth auger 26 is wound between the second auger 801, the diameter of the fifth auger 26 is smaller than the diameter of the second auger 801, the diameters of the two sides of the second support tube 4 are smaller than the diameter of the middle part, and the second auger 801 contacts the inner wall of the second support tube 4, and the second support tube 4 is used to guide the flowing material.

[0068] After the staff presses the start button on the control panel, the control panel starts the electric push rod 23 at the same time, and the telescopic end of the electric push rod 23 begins to drive the sliding rod 22 to slide back and forth along the rotating shaft 7. In the working state, the rotating shaft 7 drives the sliding rod 22 to rotate synchronously. When the telescopic end of the sliding rod 22 moves to the left, the sliding rod 22 slides to the left along the rotating shaft 7, and the rotating shaft 7 drives the sliding sleeve 25 to move to the left through the mounting plate. The sliding sleeve 25 slides to the left along the rotating shaft 7, and the sliding sleeve 25 drives the fifth auger 26 to move to the left, and the fifth auger 26 gradually approaches the right side of the second auger 801. At the same time, the sliding sleeve 25 and the second auger 801 slide relative to each other, and when the telescopic end of the sliding rod 22 moves to the right, the telescopic end of the sliding rod 22 drives the sliding sleeve 25 to move to the right, and the sliding sleeve 25 drives the fifth auger 26 to move to the right, and the fifth auger 26 gradually approaches the right side of the second auger 801, and then repeats the above operation to make the fifth auger 26 in a state of reciprocating movement left and right.

[0069] During the left and right movement of the fifth auger 26, the fifth auger 26 cooperates with the second auger 801 to continuously squeeze the material between the fifth auger 26 and the second auger 801. After the material is squeezed, the remaining gas between the materials is discharged, so that the high-density polyethylene resin and the additive are evenly mixed, thereby improving the mixing effect of the materials and improving the quality of the produced HDPE pipes. When the material flows to the left along the second support cylinder 4, the left and right diameters of the second support cylinder 4 and the second auger 801 are smaller than the middle diameter. When the material is discharged from the fixed cylinder 110 and moves to the right end of the second support cylinder 4, the diameter of the second support cylinder 4 will gradually increase as the material moves to the left, and the material will move outward and fill the second support cylinder 4. When the material continues to move along the left end of the second support cylinder 4, the diameter of the second support cylinder 4 will gradually decrease. At this time, the material moving to the left along the second support cylinder 4 will also move to the middle and be discharged from the left end of the second support cylinder 4. During the movement of the material, it will be squeezed by the fifth auger 26 and the second auger 801. At the same time, under the diversion effect of the second support cylinder 4, the material is stirred, which improves the mixing effect between the high-density polyethylene resin and the additive. When the staff turns off the device through the control panel, the control panel turns off the electric push rod 23.

[0070] Embodiment 5: Based on embodiment 4, Figure 12-14 , also includes an auxiliary temperature control mechanism, the auxiliary temperature control mechanism is arranged on the third support tube 5, the auxiliary temperature control mechanism is used to flip the material, the auxiliary temperature control mechanism includes a fixed block 27, the fixed block 27 is fixedly connected to the inner wall of the third support tube 5, the fixed block 27 is sealed with the inner wall of the third support tube 5, the fixed block 27 is provided with four through holes with equal circumferential spacing, a torsion plate 28 is fixedly connected in the through hole of the fixed block 27, the torsion plate 28 is flipped 180°, the torsion plate 28 is used to flip the flowing material, the torsion plate 28 separates the material flowing along the through hole of the fixed block 27 into two parts, and the positions of the two parts of the material will be swapped, a detection and adjustment component is arranged between the third support tube 5 and the fixed block 27, and the detection and adjustment component is used to detect the viscosity of the material flowing through the through hole of the fixed block 27.

[0071] like Fig.13 and Fig.14The detection and adjustment component includes four sliding rings 29 with circumferentially equal spacing. The four sliding rings 29 are respectively slidably connected to the adjacent through holes of the fixed block 27. The sliding ring 29 is located on the right side of the adjacent through hole of the fixed block 27. The sliding ring 29 is sealed with the inner wall of the adjacent through hole of the fixed block 27. The fixed block 27 and the third support cylinder 5 are both provided with four slide grooves. The third support cylinder 5 and the slide groove adjacent to the fixed block 27 are mutually connected. The sliding ring 29 is sealed with the inner wall of the adjacent through hole of the fixed block 27. The sliding ring 29 is used to block the slide groove adjacent to the fixed block 27. The sliding ring 29 seals the slide groove adjacent to the fixed block 27. The third support cylinder 5 and the slide groove adjacent to the fixed block 27 are slidably connected together with the third connection Plate 30, the third connecting plate 30 is fixedly connected to the adjacent sliding ring 29, the flow resistance of the material acts on the sliding ring 29, the sliding ring 29 will drive the adjacent third connecting plate 30 to slide synchronously, the outer side of the third support cylinder 5 is fixedly connected with four mounting plates with circumferential equal spacing, a tension spring 31 is fixedly connected between the third connecting plate 30 and the mounting plates adjacent to the third support cylinder 5, the flow resistance of the material acts on the sliding ring 29, when the flow resistance of the material is greater than the tension of the tension spring 31, the tension spring 31 is stretched, the fixed block 27 is provided with four arc-shaped cavities 32 with circumferential equal spacing, the arc-shaped cavities 32 are used to circulate hot oil, and a temperature control component is provided on the outer side of the third support cylinder 5, the temperature control component is used to control the flow speed of the hot oil in the arc-shaped cavity 32.

[0072] like Fig.13 and Fig.14 The temperature control component includes a first annular tube 33, which is sleeved on the outer side of the third support tube 5. The central axis of the first annular tube 33 coincides with the central axis of the third support tube 5. The first annular tube 33 is fixedly connected and communicated with four oil inlet pipes 34 with equal circumferential spacing. The oil inlet pipe 34 passes through the third support tube 5 and the fixed block 27 and is communicated with the adjacent arc cavity 32. The oil inlet pipe 34 is a hard metal pipe. The outer side of the third support tube 5 is sleeved with a second annular tube 35. The second annular tube 35 is fixedly connected and communicated with oil outlet pipes 36 with equal circumferential spacing. The oil outlet pipe 36 passes through the third support tube 5 and the fixed block 27 and is communicated with the adjacent arc cavity 32. The hot oil passes through the inlet pipe 34. The oil pipe 34 flows into the adjacent arc-shaped cavity 32, and the hot oil flows along the arc-shaped cavity 32 and flows out from the adjacent oil outlet pipe 36. The first annular tube 33 and the second annular tube 35 are both equipped with oil guide ports, and the oil guide ports on the first annular tube 33 and the second annular tube 35 are respectively connected to the oil inlet and the oil return port of the hot oil circulation device. The hot oil circulation device is an existing device and is not shown in the accompanying drawings. The oil inlet pipe 34 is equipped with a flow control valve 37, and a gear is installed on the adjusting rod of the flow control valve 37. The flow area of ​​the flow control valve 37 is changed by adjusting the adjusting rod on the flow control valve 37. The third connecting plate 30 is fixedly connected with a rack 38, and the rack 38 is meshed with the gear on the adjacent flow control valve 37.

[0073] After the staff presses the start button on the control panel, the staff starts the hot oil circulation device connected between the first annular tube 33 and the second annular tube 35, and the hot oil is discharged from the oil outlet of the hot oil circulation device into the first annular tube 33, and the first annular tube 33 flows into the adjacent arc cavity 32 through four oil inlet pipes 34. Under normal conditions, the flow control valve 37 is always in an open state, and the hot oil flowing through the arc cavity 32 exchanges heat with the fixed block 27, and then flows out from the adjacent oil outlet pipe 36, and the hot oil in the four oil outlet pipes 36 flows into the second annular tube 35, and the hot oil in the second annular tube 35 flows back to the hot oil circulation device for reheating.

[0074] After the material is discharged from the left side of the second support cylinder 4 and enters the third support cylinder 5, the material in the melting process is divided into four parts and enters the four through holes of the fixed block 27 respectively. The material flows to the left along the through holes of the fixed block 27. During the flow of the material, it will contact the sliding ring 29. When the temperature distribution of the material is uneven, the melting degree of the material in the middle position is not ideal, resulting in excessive viscosity of the material. When the viscosity of the material increases, the flow resistance will also increase. At this time, the material drives the sliding ring 29 to move to the left through the resistance, and the sliding ring 29 drives the adjacent third connecting ring 29 to move to the left. The plates 30 move synchronously, the third connecting plate 30 slides along the slide grooves of the fixed block 27 and the third support cylinder 5, the third connecting plate 30 stretches the adjacent tension spring 31, and the distance that the sliding ring 29 moves to the left is proportional to the viscosity of the material. In the process of the material flowing to the left along the through hole of the fixed block 27, when the material passes through the torsion plate 28, the torsion plate 28 flips the material, and flips the material on the outside of the four through holes of the fixed block 27 to the inside, so that the part of the material that is not fully melted is close to the adjacent arc cavity 32, thereby heating the material reversed to the outside.

[0075] When the sliding ring 29 drives the third connecting plate 30 to move to the right, the sliding ring 29 drives the rack 38 thereon to move to the left. The rack 38 meshes with the gear on the adjacent flow control valve 37 to further open the flow control valve 37, thereby increasing the flow through the oil inlet pipe 34, thereby heating the material in the through hole of the fixed block 27 in a short time. If the material entering the through hole of the fixed block 27 has melted, the resistance to the material moving to the left is less than the tension of the tension spring 31, and the sliding ring 29 does not slide along the fixed block 27. Under the action of the tension of the tension spring 31, the third connecting plate 30 is in the initial position, and the flow control valve 37 returns to a normal state.

[0076] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A production device for heat-insulating HDPE pipe materials, comprising a support plate (1), a control panel being installed on one side of the support plate (1), characterized in that: The device further comprises a first support tube (2), the first support tube (2) being fixedly connected to a side of the support plate (1) away from the control panel, the first support tube (2) being rotatably connected to a connecting tube (3), the support plate (1) being fixedly connected to a second support tube (4) rotatably connected to the connecting tube (3) via a mounting plate, the second support tube (4) being fixedly connected to an end of the second support tube (4) away from the connecting tube (3) to a third support tube (5), the third support tube (5) being installed with a mold head (6), the first support tube (2) being rotatably connected to a rotating shaft (7), the rotating shaft (7) The shaft (7) passes through the connecting tube (3), the second supporting tube (4) and the third supporting tube (5); the rotating shaft (7) is fixedly connected to a first auger (8) located in the first supporting tube (2); the rotating shaft (7) is fixedly connected to a second auger (801) located in the second supporting tube (4); the rotating shaft (7) is fixedly connected to a third auger (10) and fan-shaped plates (9) distributed circumferentially and at equal intervals; the third auger (10) and the fan-shaped plates (9) distributed circumferentially and at equal intervals are both located in the third supporting tube (5); A first motor (11) is fixedly connected to a side of the support plate (1) away from the mold head (6) via a mounting plate; an output shaft of the first motor (11) and the rotating shaft (7) are driven by a gear set; a fixed cylinder (110) which is circumferentially equidistant and seals with the connecting cylinder (3) is fixedly connected to the connecting cylinder (3); a second motor (12) is fixedly connected to the support plate (1); the first motor (11) and the second motor (12) are both electrically connected to a control panel; a gear ring is arranged on the outer side of the connecting cylinder (3); an output shaft of the second motor (12) is connected to the rotating shaft (7) via a gear set; a fixed cylinder (110) which is circumferentially equidistant and seals with the connecting cylinder (3) is fixedly connected to the connecting cylinder (3); a second motor (12) is fixedly connected to the support plate (1); the first motor (11) and the second motor (12) are both electrically connected to a control panel; a gear ring is arranged on the outer side of the connecting cylinder (3); and an output shaft of the second motor (12) is connected to the rotating shaft (7) via a gear set. The shaft is driven by a gear and a gear ring on the connecting cylinder (3); a symmetrical connecting ring (13) is fixedly connected to the outer side of the connecting cylinder (3); a rotating sleeve (14) is rotatably connected between the symmetrical connecting rings (13); the rotating sleeve (14) and the symmetrical connecting rings (13) are both sealed and matched; the connecting cylinder (3), the fixed cylinder (110) and the rotating sleeve (14) at equal circumferential intervals cooperate to form a closed cavity; the rotating sleeve (14) is fixedly connected to and communicates with a conduit that is connected to an oil inlet and an oil return port of a hot oil circulation device.

2. A production equipment for heat-insulating HDPE pipe materials according to claim 1, characterized in that: The radius of the sector plates (9) distributed circumferentially and at equal intervals increases in sequence in a direction away from the third auger (10), and the sector plates (9) are in contact with the inner wall of the third support cylinder (5).

3. A production equipment for heat-insulating HDPE pipe materials according to claim 2, characterized in that: The fixing tube (110) is in the shape of a truncated cone, and the diameter of the fixing tube (110) on a side close to the first supporting tube (2) is smaller than the diameter of the side close to the second supporting tube (4).

4. A production equipment for heat-insulating HDPE pipe material according to claim 3, characterized in that: The invention also includes an anti-blocking mechanism, which is arranged between the connecting tube (3) and the second supporting tube (4), and is used to clear the material in the fixed tube (110) with equal circumferential spacing. The anti-blocking mechanism includes a toothed ring (15) with equal circumferential spacing, and the toothed ring (15) with equal circumferential spacing is respectively rotatably connected to the side of the adjacent fixed tube (110) close to the first supporting tube (2), the inner ring of the toothed ring (15) is fixedly connected to a first connecting plate (16), the inner wall of the fixed tube (110) is fixedly connected to a second connecting plate (17), a support column (18) is arranged between the second connecting plate (17) and the adjacent first connecting plate (16), the support column (18) is fixedly connected to the adjacent first connecting plate (16), and the support column (18) is connected to the adjacent second connecting plate (16). The two connecting plates (17) are rotatably connected. The support column (18) is fixedly connected with a fourth auger (19). The fourth auger (19) is located in the adjacent fixed cylinder (110). The fourth auger (19) contacts the inner wall of the adjacent fixed cylinder (110). The rotating shaft (7) is fixedly connected with a toothless ring (20). The toothless ring (20) is rotatably connected to a side of the connecting cylinder (3) close to the first supporting cylinder (2). The toothless ring (20) and the toothed ring (15) with circumferentially equal spacing are both in transmission cooperation. A cover plate (21) is fixedly connected to a side of the connecting cylinder (3) close to the first supporting cylinder (2). The cover plate (21) is provided with through holes with circumferentially equal spacing. The through holes of the cover plate (21) are connected to the adjacent fixed cylinder (110). The cover plate (21) is rotatably connected to the rotating shaft (7).

5. A production equipment for heat-insulating HDPE pipe material according to claim 4, characterized in that: The invention also comprises an auxiliary mixing mechanism, the auxiliary mixing mechanism is arranged in the second support cylinder (4), the auxiliary mixing mechanism is used to assist the rapid mixing between the high-density polyethylene resin particles and the additive, the auxiliary mixing mechanism comprises a sliding rod (22), the sliding rod (22) is slidably connected to the middle part of the rotating shaft (7), an electric push rod (23) is fixedly connected to the mounting frame of the first motor (11), the electric push rod (23) is electrically connected to the control panel, the telescopic end of the electric push rod (23) is rotatably connected to the sliding rod (22), and the rotating shaft ( 7) is slidably connected with a sliding sleeve (25), the sliding sleeve (25) and the second auger (801) are slidably matched, the rotating shaft (7) is provided with symmetrical sliding grooves, the inner wall of the sliding sleeve (25) is fixedly connected with symmetrical mounting plates, the symmetrical mounting plates of the sliding sleeve (25) are respectively slidably connected in the symmetrical sliding grooves of the rotating shaft (7), the mounting plate of the sliding sleeve (25) is fixedly connected to the sliding rod (22), the outer wall of the sliding sleeve (25) is fixedly connected with a fifth auger (26), and the fifth auger (26) is wound between the second augers (801).

6. A production equipment for heat-insulating HDPE pipe material according to claim 5, characterized in that: The diameters of the two sides of the second support tube (4) are smaller than the diameter of the middle portion, and the second auger (801) is in contact with the inner wall of the second support tube (4).

7. A production equipment for heat-insulating HDPE pipe material according to claim 6, characterized in that: The invention also comprises an auxiliary temperature control mechanism, the auxiliary temperature control mechanism is arranged in the third support tube (5), the auxiliary temperature control mechanism is used to turn over the material, the auxiliary temperature control mechanism comprises a fixed block (27), the fixed block (27) is fixedly connected to the inner wall of the third support tube (5), the fixed block (27) is provided with through holes with circumferential equal spacing, a torsion plate (28) is fixedly connected in the through holes of the fixed block (27), the torsion plate (28) is used to turn over the flowing material, and a detection and adjustment component is arranged between the third support tube (5) and the fixed block (27), the detection and adjustment component is used to detect the viscosity of the material flowing through the through holes of the fixed block (27).

8. The production equipment of the heat-insulating HDPE pipe material according to claim 7, characterized in that: The detection and adjustment component comprises sliding rings (29) with circumferentially equal spacing, the sliding rings (29) with circumferentially equal spacing are respectively slidably connected to the adjacent through holes of the fixed block (27), the sliding rings (29) are sealed and matched with the inner walls of the adjacent through holes of the fixed block (27), the fixed block (27) and the third support tube (5) are both provided with sliding grooves with circumferentially equal spacing, the sliding grooves adjacent to the third support tube (5) and the fixed block (27) are mutually connected, and the inner wall of the sliding groove adjacent to the third support tube (5) and the fixed block (27) is sealed. A third connecting plate (30) is slidably connected together, the third connecting plate (30) is fixedly connected to the adjacent sliding ring (29), the outer side of the third support tube (5) is fixedly connected to a mounting plate with circumferentially equal spacing, a tension spring (31) is fixedly connected between the third connecting plate (30) and the mounting plate adjacent to the third support tube (5), the fixed block (27) is provided with an arc-shaped cavity (32) with circumferentially equal spacing, and the outer side of the third support tube (5) is provided with a temperature control component, and the temperature control component is used to control the flow rate of hot oil in the arc-shaped cavity (32).

9. A production equipment for heat-insulating HDPE pipe material according to claim 8, characterized in that: The temperature control component comprises a first annular tube (33), the first annular tube (33) being sleeved on the outside of the third support tube (5), the first annular tube (33) being fixedly connected to and communicating with oil inlet pipes (34) at equal circumferential intervals, the oil inlet pipes (34) passing through the third support tube (5) and the fixing block (27) and communicating with the adjacent arc-shaped cavity (32), the outer side of the third support tube (5) being sleeved with a second annular tube (35), the second annular tube (35) being fixedly connected to and communicating with oil outlet pipes (36) at equal circumferential intervals, the oil outlet pipes (36) passing through the third support tube (5), and the oil outlet pipes (36) passing through the third support tube (5). The support cylinder (5) and the fixed block (27) are in communication with the adjacent arc-shaped cavity (32); the first annular tube (33) and the second annular tube (35) are both provided with oil guide ports, the oil guide ports on the first annular tube (33) and the second annular tube (35) being respectively in communication with the oil inlet and the oil return port of the hot oil circulation device; the oil inlet tube (34) is provided with a flow control valve (37); a gear is provided on the regulating rod of the flow control valve (37); a rack (38) is fixedly connected to the third connecting plate (30); the rack (38) is meshed with the gear on the adjacent flow control valve (37).

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