A pipe forming extruder

Abstract

The invention relates to the technical field of extruders, and discloses a pipe forming extruder, comprising a base and an extruder body, a water tank being fixed on one side of the base, a stirring assembly being arranged inside the water tank, the stirring assembly comprising an inner gear plate, a wave plate being fixed on the outer side of the inner gear plate close to the water tank, a water scooping cavity being arranged inside the wave plate, a rotating rod being connected to a rotating sleeve inside the water scooping cavity, the pipe forming extruder is started by controlling a driving motor through a control box, the transmission inner gear plate drives the wave plate to rotate, the wave plate stirs the cooling water in the water tank, scoops out the cooling water and pours it into the water tank again, while pouring, the cooling water falls onto the surface of the fan blades, the cooling water contacts and splashes with the fan blades, the splashed cooling water increases the contact area with the air, thereby improving the cooling speed of the cooling water in the water tank, and further improving the efficiency of the cooling water in cooling and molding the pipe.

Description

Technical Field

[0001] The invention relates to the technical field of extruders, in particular to a pipe forming extruder. Background Art

[0002] Extruder is an important plastic machinery. The production and manufacturing of most plastic products can be achieved by extrusion molding. The extruder motor is an important component of the extruder and is the prime mover of the extruder. It provides the large thrust required by the extruder screw. The molding of plastic pipes is generally completed by an extruder.

[0003] When the extruder is processing pipe forming, the plastic particles are generally melted into a fluid state through the extruder, and then the initial shaping is completed through the head die and the shaping device, and then the pipe is cooled through the cooling water trough. After cooling, the pipe is formed, and then the traction device pulls the pipe into the cutting device for cutting. At the same time, the traction device pulls the subsequent pipes to continue to enter the cooling water trough for cooling and shaping, thus forming a complete pipe forming production line.

[0004] However, there are still some problems when using extruders to form plastic pipes on the market. For example, in the cooling water tank, the pipe is cooled and formed by cooling water. During the continuous cooling process of the pipe, the temperature of the pipe surface is absorbed by the cooling water. The temperature of the cooling water that absorbs the heat of the pipe will rise accordingly, and with the circulation of the water pump, the temperature of the cooling water in the cooling water tank will be uneven. The uneven cooling water temperature will cause the subsequent cooling and forming of the pipe to be inconsistent, resulting in the degree of pipe forming being affected.

[0005] When the pipe is cooled, the degree of cooling and shrinkage will also vary, and the degree of solidification of the surface will also be different. After entering the traction device, it will be transported by the conveyor roller. The conveyor roller will cause drag marks on the softer part of the pipe, affecting the quality of the pipe forming. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a pipe forming extruder, which solves the problems raised in the above-mentioned background technology.

[0007] The present invention provides the following technical solution: a pipe forming extruder, comprising a base and an extruder body, a bottom plate is slidably sleeved inside one side of the base, a shaping tube is fixed on the top of the bottom plate, a shaping cavity is provided inside the shaping tube, the shaping tube is sleeved on the outside of the material outlet of the extruder body, a water tank is fixed on one side of the base, a driving motor is installed on the side of the water tank away from the limiting slide groove, a control box is provided on the outside of the water tank, a water pump is installed on the side of the water tank close to the extruder body, a nozzle is fixed on the top of the water pump, and a stirring component is provided inside the water tank;

[0008] The stirring assembly includes two sets of internal gear plates, one side of the internal gear plates is provided with a hollow shaft, and the external thread of the hollow shaft is fixed with the external gear plate, and the two sets of internal gear plates are fixedly connected by a wave plate, the inside of the wave plate is provided with a water scooping cavity, the inside of the water scooping cavity is rotatably sleeved with a rotating rod, and a fan blade is fixed to the outside of one end of the rotating rod, and a blowing assembly is provided on the outside of the internal gear plate close to the extruder body;

[0009] A cleaning component is provided outside the blowing component;

[0010] A servo motor is installed at the bottom of both sides of the water tank inner cavity, a transmission screw is fixed to the outside of the servo motor output shaft, the external thread of the transmission screw is sleeved with a linkage rod, a transmission frame is fixed on both sides of the linkage rod, the internal sliding sleeve of the transmission frame is provided with a limit screw, the external thread of the limit screw is sleeved with a fan blade plate, and the fan blade plate is located inside the transmission frame, the bottom of the limit screw is fixed to the bottom of the water tank inner cavity, and a salt spreading assembly is provided on the top of the transmission screw.

[0011] Optionally, the salt spreading assembly includes a storage box, a storage groove is provided in the middle of the inner cavity of the storage box, placement cavities are provided on both sides of the inner cavity of the storage box, a material baffle plate is slidably sleeved on the bottom of the inner cavity of the storage box, a linkage screw is rotatably sleeved on the outer part of the vertical part of the material baffle plate, the linkage screw is threadedly sleeved on the interior of the storage box, and the linkage screw passes through the outer wall of the water tank, and the two groups of the placement cavities are slidably sleeved on the interiors of the magnetic plates.

[0012] Optionally, the blowing assembly includes an upper closing plate, an inner sliding groove is provided inside the vertical portion of the upper closing plate, the inner sliding groove is slidingly sleeved with a lower closing plate, an adjusting screw is rotatably sleeved inside the top end of the vertical portion of the lower closing plate, and the adjusting screw is threadedly sleeved inside the upper closing plate, a placement groove is provided inside one end of the horizontal portion of the lower closing plate, a pop-up spring is fixed inside the placement groove, a wind plate is fixed outside one end of the pop-up spring, and a limiting block is fixed outside one side of the wind plate.

[0013] Optionally, a cleaning sleeve is fixed to the outside of the horizontal part of the lower clamping plate by bolts, a slot is opened inside one end of the cleaning sleeve, the limit block is slidably sleeved inside the slot, and the wind plate is slidably sleeved inside the cleaning sleeve.

[0014] Optionally, the cleaning assembly includes a support plate, a return spring is fixed on the top of the support plate, a linkage plate is fixed to the outside of one end of the return spring, a limiting slot is provided on the outside of the linkage plate close to the cleaning sleeve, the top of the limiting slot is inclined, an arc-shaped scraper is fixed on the outside of the linkage plate away from the cleaning sleeve, a limiting rod is fixed to the top of the support plate away from the arc-shaped scraper, and the limiting rod is slidably sleeved inside the linkage plate.

[0015] Optionally, a limiting slide groove is opened inside the base near the water tank side, an air duct is opened inside the outer wall of the shaping tube, a locking bolt is fixed to the outside of the base plate, and the locking bolt is slidably sleeved inside the limiting slide groove.

[0016] Optionally, a cover plate is hinged on the top of the water tank, air vents are opened on the tops of both sides of the water tank, and the cover plate abuts against the top of the storage box.

[0017] Optionally, a magnetic ring is fixed to the top of the middle position of the linkage rod, and the magnetic ring is slidably sleeved on the outside of the transmission screw, the magnetic plate is located directly above the magnetic ring, the magnetic ring and the magnetic plate have the same magnetic properties, and the magnetic plate is in contact with the horizontal part of the baffle plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The pipe forming extruder is started by controlling the driving motor through the control box. The driving motor drives the outer gear plate to rotate, and the outer gear plate drives the inner gear plate to rotate. The inner gear plate drives the wave plate to rotate inside the water tank. When the wave plate rotates, the cooling water in the water tank is stirred to increase the cooling rate of the cooling water. At the same time, when the wave plate rotates, the cooling water is scooped out and poured into the water tank again. While pouring, the cooling water falls on the surface of the fan blades and drives the fan blades to rotate. When the cooling water contacts and splashes with the fan blades, the splashed cooling water increases the contact area with the air and falls into the water tank, thereby increasing the cooling rate of the cooling water in the water tank, and then improving the efficiency of cooling and molding the pipe by the cooling water.

[0020] 2. The pipe forming extruder controls the start of the servo motor through a control box, controls the transmission screw through the servo motor to drive the linkage rod to rise and fall in the water tank, and the linkage rod synchronously drives the transmission frame and the magnetic ring to rise and fall inside the water tank. When the magnetic ring rises, it repels and pushes the magnetic plate upward after approaching the magnetic plate. After the magnetic ring drops, the magnetic plate loses its repulsive force and touches the baffle plate under the influence of gravity, causing the baffle plate to vibrate and shake off salt particles into the cooling water in the water tank, thereby improving the cooling effect of the cooling water and the cooling of the pipe. At the same time, the transmission frame drives the fan blade plate to rise and fall outside the limiting screw. The fan blade plate is limited by the limiting screw during the lifting process and rotates. When the fan blade plate is immersed in the cooling water, the cooling water is driven to flow toward the pipe, thereby increasing the speed of cooling the cooling water to flush the pipe. When the fan blade plate rises above the cooling water surface, the fan blade plate rotates to generate wind force and blows the hot air in the water tank outward, thereby accelerating the air circulation in the water tank, thereby further improving the cooling speed of the cooling water in the water tank and the efficiency of cooling the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the water tank of the present invention;

[0023] Figure 3 This is a diagram showing the position relationship between the transmission screw and the storage box of the present invention;

[0024] Figure 4 It is a structural cross-sectional view of the storage box of the present invention;

[0025] Figure 5 A diagram showing the positional relationship between the stirring component and the blowing component of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the blowing assembly of the present invention;

[0027] Figure 7 It is a structural cross-sectional view of the lower cladding plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the shaped tube of the present invention;

[0030] Fig.10 This is a diagram showing the positional relationship between the cleaning sleeve and the molding cavity of the present invention;

[0031] Fig.11 The connection diagram between the inner gear plate and the outer gear plate

[0032] In the figure: 1. base; 11. extruder body; 12. limit slide; 2. bottom plate; 21. shaping tube; 22. shaping cavity; 23. air duct; 24. locking bolt; 3. water tank; 31. drive motor; 32. control box; 33. cover plate; 34. air outlet; 4. inner gear plate; 41. outer gear plate; 42. wave plate; 43. water scooping cavity; 44. rotating rod; 45. fan blade; 5. upper closing plate; 51. inner slide; 52. lower closing plate; 53. adjusting screw; 54. placement slot; 55. pop-up spring ; 56. wind plate; 57. limit block; 58. cleaning sleeve; 59. slot; 6. support plate; 61. reset spring; 62. linkage plate; 63. limit slot; 64. arc scraper; 65. limit rod; 7. servo motor; 71. transmission screw; 72. linkage rod; 73. transmission frame; 74. limit screw; 75. fan blade; 76. magnetic ring; 8. storage box; 81. storage slot; 82. placement cavity; 83. material blocking plate; 84. linkage screw; 85. magnetic plate; 9. water pump; 91. nozzle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1-11 A pipe forming extruder comprises a base 1 and an extruder body 11, a bottom plate 2 is slidably sleeved inside one side of the base 1, a shaping tube 21 is fixed on the top of the bottom plate 2, a shaping cavity 22 is provided inside the shaping tube 21, and the shaping tube 21 is sleeved on the outside of the discharge port of the extruder body 11, a water tank 3 is fixed on one side of the base 1, a driving motor 31 is installed on the side of the water tank 3 away from the limiting chute 12, a control box 32 is provided outside the water tank 3, a water pump 9 is installed on the side of the water tank 3 close to the extruder body 11, a nozzle 91 is fixed on the top of the water pump 9, and a stirring component is provided inside the water tank 3;

[0036] The stirring assembly includes two sets of inner gear discs 4, one side of the inner gear discs 4 is provided with a hollow shaft, and the outer thread of the hollow shaft is fixed with an outer gear disc 41, the two sets of inner gear discs 4 are fixedly connected by a wave plate 42, the inner part of the wave plate 42 is provided with a water scooping cavity 43, the inner part of the water scooping cavity 43 is rotatably sleeved with a rotating rod 44, and a fan blade 45 is fixed to the outer side of one end of the rotating rod 44, and the outer side of the inner gear disc 4 close to the extruder body 11 is provided with a blowing assembly, and the outer side of the blowing assembly is provided with a cleaning assembly;

[0037] A servo motor 7 is installed at the bottom of both sides of the inner cavity of the water tank 3, a transmission screw 71 is fixed to the outside of the output shaft of the servo motor 7, a linkage rod 72 is sleeved on the outer thread of the transmission screw 71, a transmission frame 73 is fixed on both sides of the linkage rod 72, a limit screw 74 is slidably sleeved on the inside of the transmission frame 73, a fan blade 75 is sleeved on the outer thread of the limit screw 74, and the fan blade 75 is located inside the transmission frame 73, the bottom of the limit screw 74 is fixed to the bottom of the inner cavity of the water tank 3, and a salt spreading component is provided on the top of the transmission screw 71;

[0038] In the specific operation process, first, cooling water is injected into the water tank 3 through an external water pipe, and then the plastic particles are put into the extruder body 11 through the funnel on the top of the extruder body 11, and then the extruder body 11 is started and the plastic particles are heated. After the plastic particles are heated in the extruder body 11 and are in a fluid state, they enter the interior of the shaping tube 21 and are initially shaped through the shaping cavity 22. This is the working principle of extrusion pipe molding by the extruder in the prior art, which will not be described in detail here.

[0039] Furthermore, after the pipe is pushed out from one end of the shaping tube 21, it enters the water tank 3 through the inner gear plate 4, and the cooling water in the water tank 3 is sprayed on the surface of the pipe through the water pump 9 and the nozzle 91. The sprayed cooling water falls into the water tank 3 again, and forms a circulation spray through the water pump 9 and the nozzle 91, so that the pipe can be cooled by the cooling water.

[0040] When the cooling water cools the pipe for a long time and the temperature rises, the driving motor 31 is started through the control box 32, and the driving motor 31 drives the outer gear plate 41 to rotate, and the outer gear plate 41 drives the inner gear plate 4 to rotate. During the rotation of the inner gear plate 4, the wave plate 42 drives the wave plate 42 to rotate. During the rotation, the wave plate 42 stirs the cooling water in the water tank 3, thereby increasing the contact area between the cooling water and the air, reducing the temperature of the cooling water, and improving the efficiency of the cooling water in forming the pipe. The wave-shaped setting reduces the resistance of the wave plate 42 entering the cooling water and the resistance of its turning in the cooling water. After the wave plate 42 enters the cooling water, the cooling water The cooling water flows into the scooping cavity 43 and turns upward along with the wave plate 42. When the wave plate 42 rotates to be perpendicular to the cooling water surface, the cooling water in the scooping cavity 43 falls on the surface of the pipe under the influence of gravity, thereby cooling the pipe. Part of the cooling water contacts the fan blades 45 during the falling process, and the fan blades 45 are driven to rotate by the falling cooling water. The fan blades 45 break up the falling cooling water during the rotation process, so that the cooling water is sprinkled everywhere in the water tank 3. In the process of sprinkling the cooling water, the contact area between the cooling water and the air in the scooping cavity 43 is increased, the cooling water cooling efficiency is improved, and the influence of the cooling water temperature rise on the cooling and forming of the pipe is reduced.

[0041] Furthermore, after the cooling water cools the pipe for a long time, the servo motor 7 is started through the control box 32, and the transmission screw 71 is controlled by the servo motor 7 to rotate. The transmission screw 71 drives the linkage rod 72 to rise and fall during the rotation process. The linkage rod 72 drives the transmission frame 73 to rise and fall during the lifting process. The transmission frame 73 drives the fan plate 75 to rise and fall synchronously during the lifting process. Because the limit screw 74 limits the thread of the fan plate 75, the fan plate 75 rotates synchronously when it is lifted and lowered. When the fan plate 75 is immersed in the cooling water, it plays a stirring role. The effect of mixing cooling water makes the temperature of cooling water in water tank 3 more uniform, and makes the cooling of pipe more uniform during cooling and forming, thereby improving the effect of pipe forming. When the fan blade plate 75 rises out of the water surface, the cooling water brought away by its surface is sprinkled to all parts of water tank 3, thereby increasing the contact area between cooling water and air on the surface of water tank 3. At the same time, when the fan blade plate 75 rotates, wind force is generated, which blows the hot air inside water tank 3 outward, accelerates the air circulation speed inside water tank 3, thereby improving the cooling efficiency of cooling water and enhancing the efficiency of cooling and forming of pipe by cooling water.

[0042] It should be noted that mounting holes are provided on the outer walls on both sides of the water tank 3. When installing the inner gear plate 4, the hollow shaft of the inner gear plate 4 is passed through the mounting hole, and then the outer gear plate 41 is fixed to the outside of the hollow shaft passing through the water tank 3, so that the inner gear plate 4 and the outer gear plate 41 form a whole, ensuring that the inner gear plate 4 and the outer gear plate 41 can rotate synchronously.

[0043] Embodiment 2:

[0044] The salt spreading assembly includes a storage box 8, a storage slot 81 is provided in the middle of the inner cavity of the storage box 8, and placement cavities 82 are provided on both sides of the inner cavity of the storage box 8. A material blocking plate 83 is slidably sleeved at the bottom of the inner cavity of the storage box 8, and a linkage screw 84 is rotatably sleeved on the outer part of the vertical portion of the material blocking plate 83. The linkage screw 84 is threadedly sleeved inside the storage box 8, and the linkage screw 84 passes through the outer wall of the water tank 3. The two sets of placement cavities 82 are slidably sleeved with magnetic plates 85.

[0045] A cover plate 33 is hinged on the top of the water tank 3, and air vents 34 are provided on the tops of both sides of the water tank 3. The cover plate 33 abuts against the top of the storage box 8. A magnetic ring 76 is fixed to the top of the middle position of the linkage rod 72, and the magnetic ring 76 is slidably sleeved on the outside of the transmission screw 71. The magnetic plate 85 is located directly above the magnetic ring 76. The magnetic properties of the magnetic ring 76 and the magnetic plate 85 are the same, and the magnetic plate 85 contacts the horizontal part of the baffle plate 83.

[0046] Specifically, by rotating the linkage screw 84, the linkage screw 84 drives the baffle plate 83 to slide inside the storage box 8, and the filter port set on the baffle plate 83 is aligned and connected with the salt outlet set at the bottom of the inner cavity of the storage box 8. When the servo motor 7 controls the transmission screw 71 to rotate, the transmission screw 71 controls the linkage rod 72 and drives the magnetic ring 76 to rise and fall. When the magnetic ring 76 rises, the magnetic ring 76 and the magnetic plate 85 gradually approach each other and push the magnetic plate 85 through the principle of magnetic repulsion, so that the magnetic plate 85 rises inside the placement cavity 82. When the magnetic ring 76 falls, the magnetic plate 85 5 loses the push of magnetic force, falls under the influence of gravity, and touches the baffle plate 83, so that the baffle plate 83 vibrates inside the storage box 8, and the salt particles on the surface of the baffle plate 83 inside the storage tank 81 fall into the inside of the water tank 3 through the filter port and the salt outlet, and dissolve in the cooling water, so that the cooling water becomes salt water, and the efficiency of cooling the pipe is enhanced by the salt water. When the wave plate 43 rotates, the salt particles in the cooling water can be stirred, so that the salt particles are dissolved in the cooling water more quickly, thereby improving the efficiency and quality of the brine cooling and forming of the pipe;

[0047] When the cover plate 33 and the water tank 3 are closed, the top of the storage box 8 can be sealed. At the same time, under the action of the air vent 34, a ventilation port can be reserved for the water tank 3 to ensure smooth air circulation inside the water tank 3.

[0048] Embodiment three:

[0049] The blowing assembly includes an upper closing plate 5, an inner slide groove 51 is provided inside the vertical part of the upper closing plate 5, a lower closing plate 52 is slidably sleeved inside the inner slide groove 51, an adjusting screw 53 is rotatably sleeved inside the top of the vertical part of the lower closing plate 52, and the adjusting screw 53 is threadedly sleeved inside the upper closing plate 5, a placement groove 54 is provided inside one end of the horizontal part of the lower closing plate 52, a pop-up spring 55 is fixed inside the placement groove 54, an air plate 56 is fixed outside one end of the pop-up spring 55, a limiting block 57 is fixed outside one side of the air plate 56, a cleaning sleeve 58 is fixed to the outside of the horizontal part of the lower closing plate 52 by bolts, a slot 59 is provided inside one end of the cleaning sleeve 58, the limiting block 57 is slidably sleeved inside the slot 59, and the air plate 56 is slidably sleeved inside the cleaning sleeve 58;

[0050] The cleaning assembly includes a support plate 6, a return spring 61 is fixed on the top of the support plate 6, a linkage plate 62 is fixed to the outside of one end of the return spring 61, a limiting slot 63 is provided on the outside of the linkage plate 62 close to the cleaning sleeve 58, the top of the limiting slot 63 is inclined, an arc scraper 64 is fixed to the side of the linkage plate 62 away from the cleaning sleeve 58, a limiting rod 65 is fixed to the side of the top of the support plate 6 away from the arc scraper 64, and the limiting rod 65 is slidably sleeved inside the linkage plate 62, a limiting slide groove 12 is provided inside the side of the base 1 close to the water tank 3, an air duct 23 is provided inside the outer wall of the shaping tube 21, a locking bolt 24 is fixed to the outside of the bottom plate 2, and the locking bolt 24 is slidably sleeved inside the limiting slide groove 12;

[0051] Specifically, when the pipe is pushed outward from the shaping tube 21 into the water tank 3, the outer gear plate 41 is driven to rotate by the driving motor 31. Since the inner gear plate 4 is threadedly fixed to the outer gear plate 41 and rotates synchronously, the inner gear plate 4 close to the shaping tube 21 drives the outer gear plate 41 threadedly fixed thereto to rotate, and then drives the upper closing plate 5 to rotate synchronously. The upper closing plate 5 drives the lower closing plate 52 to rotate synchronously during the rotation process. The lower closing plate 52 drives the wind plate 56 to rotate synchronously during the rotation process. The lower closing plate 52 and the upper closing plate 5 generate wind force during the rotation process, and pre-cool the pipe that has not entered the water tank 3. At the same time, the wind plate 56 faces the air duct 23. The wind force generated by the rotation of the wind plate 56 enters the interior of the air duct 23, so that the shaping tube 21 can be cooled, so that the shaping speed of the plastic particles in the shaping cavity 22 can be accelerated, thereby improving the shaping speed of the pipe and the pre-cooling effect.

[0052] Furthermore, when the extrusion of the pipe is completed and the plastic fluid is stopped from being pushed into the shaping tube 21 by the extruder body 11, the adjusting screw 53 is rotated at this time, so that the adjusting screw 53 drives the lower clamping plate 52 to descend, so that the distance between the horizontal part of the lower clamping plate 52 and the horizontal part of the upper clamping plate 5 is adjusted to the maximum distance, so that the lower clamping plate 52 is aligned with the shaping cavity 22, and then the nut of the locking bolt 24 is rotated to release the bottom plate 2 from the base 1. At this time, the bottom plate 2 is pushed toward the water tank 3, so that the shaping cavity 22 is sleeved on the outside of the cleaning sleeve 58, and the inner and outer walls of the shaping cavity 22 are against the top and bottom of the cleaning sleeve 58. When the shaping tube 21 moves, it abuts against the wind plate 56 and pushes the wind plate 56 until the wind plate 56 is completely retracted into the cleaning sleeve 58, so that the pop-up spring 55 is retracted into the placement slot 54. When the wind plate 56 is retracted, the limit block 57 is simultaneously engaged with the inside of the card slot 59 and the limit slot 63, and through the inclined setting of the top of the limit slot 63, and at the same time, under the limit of the limit rod 65 on the linkage plate 62, the limit block 57 pushes the linkage plate 62 to move along the direction of the limit rod 65, and the linkage plate 62 drives the arc scraper 64 to move synchronously, so that the outer edge of the arc scraper 64 abuts against the outer wall of the shaping cavity 22;

[0053] At this time, the driving motor 31 is started, and the two groups of inner gear plates 4 and outer gear plates 41 are controlled to rotate synchronously by the driving motor 31, thereby driving the upper closing plate 5 to flip. When the upper closing plate 5 flips, it drives the lower closing plate 52 to flip synchronously. When the lower closing plate 52 flips, the cleaning sleeve 58 sleeved on the outside of the lower closing plate 52 flips synchronously. The cleaning sleeve 58 scrapes and cleans the inner and outer walls of the molding cavity 22 during the flipping process. The scraped plastic adhesion falls to the lower part of the molding cavity 22. When the molding tube 21 is reset toward the extruder body 11, the arc scraper 64 scrapes the adhesion at the lower part of the molding cavity 22 to the outside, thereby avoiding the adhesion from affecting the discharge speed and discharge flow rate of the subsequent pipe, ensuring the speed at which the subsequent pipe enters the water tank 3 for cooling, and indirectly improving the molding speed of the pipe cooling.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe forming extruder, comprising a base (1) and an extruder body (11), characterized in that: A bottom plate (2) is slidably sleeved inside one side of the base (1), a shaping tube (21) is fixed on the top of the bottom plate (2), a shaping cavity (22) is provided inside the shaping tube (21), the shaping tube (21) is sleeved on the outside of the discharge port of the extruder body (11), a water tank (3) is fixed on one side of the base (1), a driving motor (31) is installed on the side of the water tank (3) away from the limiting slide groove (12), a control box (32) is provided on the outside of the water tank (3), a water pump (9) is installed on the side of the water tank (3) close to the extruder body (11), a nozzle (91) is fixed on the top of the water pump (9), and a stirring component is provided inside the water tank (3); The stirring assembly comprises two groups of inner gear plates (4), one side of the inner gear plates (4) is provided with a hollow shaft, and the outer thread of the hollow shaft is fixed with an outer gear plate (41), the two groups of inner gear plates (4) are fixedly connected through a wave plate (42), the inner part of the wave plate (42) is provided with a water scooping cavity (43), the inner part of the water scooping cavity (43) is rotatably sleeved with a rotating rod (44), the outer part of one end of the rotating rod (44) is fixed with a fan blade (45), and the outer part of the inner gear plates (4) close to the extruder body (11) is provided with a blowing assembly; A cleaning component is provided outside the blowing component; A servo motor (7) is installed at the bottom of both sides of the inner cavity of the water tank (3), a transmission screw (71) is fixed to the outside of the output shaft of the servo motor (7), the outer thread of the transmission screw (71) is sleeved with a linkage rod (72), a transmission frame (73) is fixed on both sides of the linkage rod (72), the inner sliding sleeve of the transmission frame (73) is sleeved with a limit screw (74), the outer thread of the limit screw (74) is sleeved with a fan blade plate (75), and the fan blade plate (75) is located inside the transmission frame (73), the bottom of the limit screw (74) is fixed to the bottom of the inner cavity of the water tank (3), and the top of the transmission screw (71) is provided with a salt spreading assembly; The salt spreading assembly comprises a storage box (8), a storage groove (81) is provided in the middle of the inner cavity of the storage box (8), placement cavities (82) are provided on both sides of the inner cavity of the storage box (8), a material blocking plate (83) is slidably sleeved at the bottom of the inner cavity of the storage box (8), a linkage screw (84) is rotatably sleeved on the outer part of the vertical part of the material blocking plate (83), the linkage screw (84) is threadedly sleeved inside the storage box (8), and the linkage screw (84) passes through the outer wall of the water tank (3), and magnetic plates (85) are slidably sleeved inside the two groups of placement cavities (82); The blowing assembly comprises an upper closing plate (5), an inner slide groove (51) is provided inside the vertical part of the upper closing plate (5), a lower closing plate (52) is slidably sleeved inside the inner slide groove (51), an adjusting screw (53) is rotatably sleeved inside the top end of the vertical part of the lower closing plate (52), and the adjusting screw (53) is threadedly sleeved inside the upper closing plate (5), a placement groove (54) is provided inside one end of the horizontal part of the lower closing plate (52), a pop-up spring (55) is fixed inside the placement groove (54), a wind plate (56) is fixed outside one end of the pop-up spring (55), and a limiting block (57) is fixed outside one side of the wind plate (56).

2. A pipe forming extruder according to claim 1, characterized in that: A cleaning sleeve (58) is fixed to the outside of the horizontal portion of the lower closing plate (52) by means of bolts, a slot (59) is provided inside one end of the cleaning sleeve (58), the limit block (57) is slidably sleeved inside the slot (59), and the wind plate (56) is slidably sleeved inside the cleaning sleeve (58).

3. A pipe forming extruder according to claim 2, characterized in that: The cleaning assembly comprises a support plate (6), a return spring (61) is fixed on the top of the support plate (6), a linkage plate (62) is fixed to the outside of one end of the return spring (61), a limiting slot (63) is provided on the outside of the linkage plate (62) on a side close to the cleaning sleeve (58), the top of the limiting slot (63) is arranged in an inclined manner, an arc-shaped scraper (64) is fixed on the outside of the linkage plate (62) on a side away from the cleaning sleeve (58), a limiting rod (65) is fixed on the top of the support plate (6) on a side away from the arc-shaped scraper (64), and the limiting rod (65) is slidably sleeved inside the linkage plate (62).

4. A pipe forming extruder according to claim 3, characterized in that: A limiting slide groove (12) is provided inside the base (1) on a side close to the water tank (3), an air duct (23) is provided inside the outer wall of the shaping tube (21), a locking bolt (24) is fixed to the outside of the bottom plate (2), and the locking bolt (24) is slidably sleeved inside the limiting slide groove (12).

5. A pipe forming extruder according to claim 4, characterized in that: A cover plate (33) is hingedly connected to the top of the water tank (3), air vents (34) are provided on the tops of both sides of the water tank (3), and the cover plate (33) abuts against the top of the storage box (8).

6. A pipe forming extruder according to claim 5, characterized in that: A magnetic ring (76) is fixed to the top end of the middle portion of the linkage rod (72), and the magnetic ring (76) is slidably sleeved on the outside of the transmission screw (71). The magnetic plate (85) is located directly above the magnetic ring (76). The magnetic properties of the magnetic ring (76) and the magnetic plate (85) are the same, and the magnetic plate (85) is in contact with the horizontal portion of the baffle plate (83).

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