Polyvinyl chloride pipe injection molding device

Abstract

The utility model discloses a polyvinyl chloride pipe injection molding device, which belongs to the technical field of polyvinyl chloride pipe processing, and comprises an extrusion cylinder and a cooling ring fixed on the side wall of the extrusion cylinder, one end of the extrusion cylinder is provided with a meshing component, and the other end of the extrusion cylinder is fixedly provided with a material guide part; a magnetic attraction sliding block is slidably arranged at the top end of the extrusion barrel, a push plate is embedded in the extrusion barrel, a magnet attracted to the magnetic attraction sliding block is fixedly embedded in the outer wall of the push plate, a water storage tank is fixed to the outer wall of the cooling ring, and nozzles are installed on the inner wall of the cooling ring in an annular array mode. Mounting frames are fixed to the two sides of the outer wall of the extrusion cylinder, cameras are embedded in the two mounting frames, driving pipes are symmetrically installed on the side wall of the extrusion cylinder through bearings, the polyvinyl chloride pipe injection molding device can conveniently adjust the discharging speed according to the discharging condition of polyvinyl chloride, and the forming quality of polyvinyl chloride pipes is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of polyvinyl chloride pipe processing, and in particular relates to a polyvinyl chloride pipe injection molding device. Background Art

[0002] Polyvinyl chloride (PVC) is the third largest synthetic polymer plastic in the world. PVC pipes are usually processed by extrusion and injection molding.

[0003] The patent with application number 202023272721.8 discloses an extrusion injection molding device for a HDEP pipe production line, including a base, a fixed seat is fixedly installed on the upper side of the base, a feed barrel is fixedly installed on the upper side of the fixed seat, a material barrel is fixedly installed on the upper side of the feed barrel, a hopper is fixedly installed on the upper side of the material barrel, a first motor is fixedly installed on the upper side of the material barrel, a connecting shaft is fixedly installed on the output end of the first motor, a stirring rod is fixedly installed on the outer side of the connecting shaft, a spiral conveying blade is fixedly installed on the lower end of the connecting shaft, and a discharge port is opened at the bottom of the material barrel, which is connected to the feed port of the feed barrel.

[0004] The above technical solution utilizes the first motor to drive the connecting shaft to rotate, and the connecting shaft drives the stirring rod and the spiral conveying blade fixedly installed on the outside thereof to rotate, and drives the extrusion injection molding of the polyvinyl chloride pipe during the rotation. However, since the rotation speed of the motor cannot be adjusted according to the discharge situation of the polyvinyl chloride pipe, the polyvinyl chloride pipe is prone to the molding speed being too fast or too slow during the injection molding process. However, the molding speed will affect the quality of the polyvinyl chloride pipe, so in actual use, it will lead to poor molding quality of the polyvinyl chloride pipe. Summary of the invention

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a polyvinyl chloride pipe injection molding device, which aims to solve the problem that the molding speed of polyvinyl chloride pipes is prone to being too fast or too slow during the injection molding process under the prior art. However, the speed of the molding speed will affect the quality of the polyvinyl chloride pipe, so in actual use, it will lead to poor molding quality of the polyvinyl chloride pipe.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a polyvinyl chloride pipe injection molding device, which includes an extrusion barrel and a cooling ring fixed on the side wall of the extrusion barrel, one end of the extrusion barrel is equipped with a meshing assembly, the other end of the extrusion barrel is fixed with a material guide portion, and the top end of the extrusion barrel is slidably provided with a magnetic slider, wherein a push plate is embedded in the extrusion barrel, and a magnet block that engages with the magnetic slider is embedded and fixed on the outer wall of the push plate, a water tank is fixed on the outer wall of the cooling ring, and nozzles are installed in a ring array on the inner wall of the cooling ring, mounting frames are fixed on both sides of the outer wall of the extrusion barrel, and cameras are embedded and installed on the two mounting frames.

[0009] When the polyvinyl chloride pipe injection molding device of the present technical solution is used, a protrusion is fixed on the outer wall of the extrusion barrel, a magnetic slider is embedded in the slide groove opened on the protrusion, and a push plate is embedded in the extrusion barrel. The push plate is affected by the pressure of the air pump to push the polyvinyl chloride to be extruded out of the extrusion barrel, and is affected by the material guide part to be formed into a pipe during the discharge process. During the movement of the push plate, the magnet block on the push plate drives the magnetic slider to slide synchronously in the slide groove. The moving speeds of the magnetic slider and the polyvinyl chloride discharge are monitored respectively by cameras at both ends of the extrusion barrel, and the optimal extrusion discharge speed is calculated according to the moving speeds of the push plate and the polyvinyl chloride discharge during the monitoring process, so as to control the motor. The motor drives the second gear to rotate after starting, and the second gear drives the first gear and the driving tube to rotate synchronously during the rotation. Since the threaded rod and the push plate are axially fixed, the driving tube drives the push plate to move laterally in the extruder barrel during the rotation, so that the discharge speed can be adjusted according to the discharge situation of the polyvinyl chloride, thereby improving the molding quality of the polyvinyl chloride pipe. A support rod is fixed on the side wall of the extruder barrel, and a cooling ring is installed through the support rod. A water pump is installed on the water tank on the side wall of the cooling ring. The water pump sprays water mist from the nozzle through the water inlet pipe, thereby cooling the extruded polyvinyl chloride pipe, thereby improving the cooling effect of the polyvinyl chloride pipe molding.

[0010] Preferably, a driving tube is symmetrically mounted on the side wall of the extrusion cylinder via a bearing, and a threaded rod threadedly inserted into the driving tube is fixed to the side wall of the push plate, and the thread directions of the two threaded rods are opposite.

[0011] Furthermore, the material guiding portion has a conical structure, and a positioning rod connected to the inner wall of the extrusion frame is fixed on the side wall of the material guiding portion.

[0012] Furthermore, the positioning rod is inserted into the push plate, and sealing rings are fixed on the outer wall and the inner wall of the push plate.

[0013] Furthermore, a feed hopper is fixedly installed on the top of the outer wall of the extrusion barrel, and support rods fixed to the cooling ring are installed in a ring array on the side wall of the extrusion barrel, and a sealing valve is installed on the feed hopper.

[0014] Furthermore, a water pump is embedded in the top of the water tank, and a water inlet pipe connected to a plurality of nozzles is installed at the top of the water pump.

[0015] Furthermore, a protrusion is fixed on the top of the extrusion cylinder, a slide groove with a T-shaped structure is provided on the protrusion, and the magnetic slider is slidably inserted in the slide groove.

[0016] Furthermore, a mounting groove is provided in the positioning rod, and a motor is fixed on the inner wall of the mounting groove.

[0017] Furthermore, the shaft of the motor extends into the extrusion barrel and is fixedly connected to a rotating shaft, and one end of the rotating shaft extending out of the extrusion barrel is fixedly sleeved with a second gear.

[0018] Furthermore, the meshing assembly includes a first gear fixedly sleeved on the two driving tubes, and the two first gears are meshedly connected with the second gear.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention has a protrusion fixed on the outer wall of the extrusion barrel, a magnetic slider is embedded in the slide groove provided on the protrusion, and a push plate is embedded in the extrusion barrel. The push plate is affected by the pressure of the air pump to push the polyvinyl chloride to be extruded and discharged from the extrusion barrel, and is affected by the material guide part to be formed into a pipe during the discharge process. During the movement of the push plate, the magnet block on the push plate drives the magnetic slider to slide synchronously in the slide groove. The moving speeds of the magnetic slider and the polyvinyl chloride discharge are monitored respectively by cameras at both ends of the extrusion barrel, and the optimal extrusion discharge speed is calculated according to the moving speeds of the push plate and the polyvinyl chloride discharge during the monitoring process, so as to control the speed of the motor. After the motor is started, the rotating shaft drives the second gear to rotate, and the second gear drives the first gear and the driving tube to rotate synchronously during the rotation process. Since the threaded rod and the push plate are axially fixed, the driving tube drives the threaded rod to drive the push plate to move horizontally in the extrusion barrel during the rotation process, so that the discharge speed is adjusted according to the discharge situation of the polyvinyl chloride, thereby improving the molding quality of the polyvinyl chloride pipe.

[0022] 2. A support rod is fixed on the side wall of the extrusion barrel, and a cooling ring is installed through the support rod. A water pump is installed on the water tank on the side wall of the cooling ring. The water pump sprays water mist from the nozzle through the water inlet pipe, thereby cooling the extruded polyvinyl chloride pipe, thereby improving the cooling effect of polyvinyl chloride pipe molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the extrusion barrel of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the extrusion barrel of the present invention;

[0027] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0030] The markings in the attached figure are: 1. extruder barrel; 2. camera; 3. raised part; 4. mounting bracket; 5. nozzle; 6. cooling ring; 7. first gear; 8. threaded rod; 9. feed hopper; 10. water inlet pipe; 11. support rod; 12. booster pump; 13. water storage tank; 14. material guide; 15. positioning rod; 16. push plate; 17. magnet block; 18. sealing ring; 19. slide groove; 20. magnetic slider; 21. drive tube; 22. rotating shaft; 23. second gear; 24. mounting groove; 25. motor. DETAILED DESCRIPTION

[0031] 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.

[0032] This specific embodiment is a polyvinyl chloride pipe injection molding device, and its structural schematic diagram is as follows Figure 1As shown, the polyvinyl chloride pipe injection molding device includes an extrusion barrel 1 and a cooling ring 6 fixed on the side wall of the extrusion barrel 1, a meshing assembly is installed at one end of the extrusion barrel 1, a material guide portion 14 is fixed at the other end of the extrusion barrel 1, and a magnetic slider 20 is slidably arranged at the top of the extrusion barrel 1, wherein a push plate 16 is embedded in the extrusion barrel 1, and a magnet block 17 that is attracted to the magnetic slider 20 is embedded and fixed on the outer wall of the push plate 16, a water storage tank 13 is fixed on the outer wall of the cooling ring 6, and nozzles 5 are installed in a ring array on the inner wall of the cooling ring 6, mounting frames 4 are fixed on both sides of the outer wall of the extrusion barrel 1, and cameras 2 are embedded and installed on the two mounting frames 4, and the push plate 16 is affected by the pressure of the air pump to push the polyvinyl chloride out of the extrusion barrel 1, and is affected by the material guide during the discharge process. The part 14 is formed into a pipe under the influence of the push plate 16. During the movement, the magnet block 17 on the push plate 16 drives the magnetic slider 20 to slide synchronously in the slide groove 19. The cameras 2 at both ends of the extruder 1 monitor the moving speeds of the magnetic slider 20 and the polyvinyl chloride discharge, respectively. During the monitoring process, the optimal extrusion discharge speed is calculated according to the moving speeds of the push plate 16 and the polyvinyl chloride discharge, and then the speed of the motor 25 is controlled. After starting, the motor 25 drives the second gear 23 to rotate with the rotating shaft 22. During the rotation, the second gear 23 drives the first gear 7 and the driving tube 21 to rotate synchronously. Since the threaded rod 8 and the push plate 16 are axially fixed, the driving tube 21 drives the threaded rod 8 to drive the push plate 16 to move horizontally in the extruder 1 during the rotation.

[0033] like Figure 1 and Figure 2As shown, a driving tube 21 is symmetrically installed on the side wall of the extrusion barrel 1 through a bearing, and a threaded rod 8 threadedly inserted in the driving tube 21 is fixed on the side wall of the push plate 16. The thread directions of the two threaded rods 8 are opposite. The second gear 23 drives the two first gears 7 to rotate in different directions during the rotation. The two threaded rods 8 with opposite thread directions enable the first gear 7 and the driving tube 21 to drive the two threaded rods 8 to move in the same direction when rotating in different directions. The material guide part 14 has a conical structure, and a positioning rod 15 connected to the inner wall of the extrusion frame is fixed on the side wall of the material guide part 14. The positioning rod 15 is inserted in the push plate 16. The outer wall and the inner wall of the push plate 16 are fixed with a sealing ring 18. A magnetic slider 20 is embedded in the slide groove 19 provided on the raised part 3. The push plate 16 is embedded in the extrusion barrel 1. The push plate 16 is affected by the pressure of the air pump to push the polyvinyl chloride out of the extrusion barrel 1 and is formed into a pipe under the influence of the material guide part 14 during the discharge process. During the movement of the push plate 16, The magnet block 17 on the extruder drives the magnetic slider 20 to slide synchronously in the slide groove 19. A feed hopper 9 is fixedly installed on the top of the outer wall of the extruder barrel 1, and a support rod 11 fixed to the cooling ring 6 is installed in a ring array on the side wall of the extruder barrel 1. A sealing valve is installed on the feed hopper 9. A mounting groove 24 is opened in the positioning rod 15. The inner wall fixing device of the mounting groove 24 has a motor 25. The machine shaft of the motor 25 extends into the extruder barrel 1 and is fixedly connected with a rotating shaft 22. One end of the rotating shaft 22 extending out of the extruder barrel 1 is fixedly sleeved with a second gear 23. The meshing assembly includes a first gear 7 fixedly sleeved on two drive tubes 21. Both of the first gears 7 are meshed with the second gear 23. After starting, the motor 25 drives the second gear 23 to rotate by the rotating shaft 22. The second gear 23 drives the first gear 7 and the drive tube 21 to rotate synchronously during the rotation. Since the threaded rod 8 and the push plate 16 remain axially fixed, the drive tube 21 drives the push plate 16 to move laterally in the extruder barrel 1 during the rotation.

[0034] like Figure 3 and Figure 4 As shown, a water pump 12 is embedded in the top of the water tank 13, and a water inlet pipe 10 connected to a plurality of nozzles 5 is installed at the top of the water pump 12. A protrusion 3 is fixed to the top of the extrusion barrel 1, and a slide groove 19 with a T-shaped structure is opened on the protrusion 3. The magnetic slider 20 is slidably inserted in the slide groove 19. A support rod 11 is fixed to the side wall of the extrusion barrel 1, and a cooling ring 6 is installed through the support rod 11. A water pump 12 is installed on the water tank 13 on the side wall of the cooling ring 6. The water pump 12 sprays water mist from the nozzle 5 through the water inlet pipe 10, thereby cooling the extruded polyvinyl chloride pipe.

[0035] The structural schematic diagram of the extrusion barrel 1 of the polyvinyl chloride pipe injection molding device is as follows Figure 2 As shown, the internal structure diagram of the extrusion barrel 1 is as follows Figure 3 As shown, its Figure 3 The enlarged schematic diagram of the structure at A is as follows Figure 4 shown.

[0036] Working principle: After closing the sealing valve on the feed hopper 9, start the meshing assembly, and the push plate 16 is affected by the pressure of the air pump to push the polyvinyl chloride out of the extrusion barrel 1, and is affected by the guide part 14 to be formed into a pipe during the discharge process. During the movement of the push plate 16, the magnet block 17 on it drives the magnetic slider 20 to slide synchronously in the slide groove 19. The cameras 2 at both ends of the extrusion barrel 1 monitor the moving speed of the magnetic slider 20 and the polyvinyl chloride discharge, and calculate the optimal extrusion discharge speed according to the moving speed of the push plate 16 and the polyvinyl chloride discharge during the monitoring process. The rotation speed of the motor 25 is then controlled. After the motor 25 is started, the shaft 22 drives the second gear 23 to rotate. During the rotation, the second gear 23 drives the first gear 7 and the driving tube 21 to rotate synchronously. Since the threaded rod 8 and the push plate 16 are axially fixed, the driving tube 21 drives the threaded rod 8 to drive the push plate 16 to move laterally in the extrusion barrel 1 during the rotation, so that the discharge speed can be adjusted according to the discharge situation of the polyvinyl chloride. The water pump 12 is started at the same time as the extrusion process. The water pump 12 sprays water mist from the nozzle 5 through the water inlet pipe 10, thereby cooling the extruded polyvinyl chloride pipe.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyvinyl chloride pipe injection molding device, comprising an extrusion barrel (1) and a cooling ring (6) fixed to the side wall of the extrusion barrel (1), characterized in that: A meshing assembly is installed at one end of the extrusion barrel (1), a material guide portion (14) is fixed at the other end of the extrusion barrel (1), and a magnetic slider (20) is slidably arranged at the top end of the extrusion barrel (1), wherein a push plate (16) is embedded in the extrusion barrel (1), and a magnet block (17) that engages with the magnetic slider (20) is embedded and fixed on the outer wall of the push plate (16), a water storage tank (13) is fixed on the outer wall of the cooling ring (6), and nozzles (5) are installed in a ring array on the inner wall of the cooling ring (6), and mounting frames (4) are fixed on both sides of the outer wall of the extrusion barrel (1), and cameras (2) are embedded and installed on the two mounting frames (4).

2. A polyvinyl chloride pipe injection molding device according to claim 1, characterized in that: A drive tube (21) is symmetrically mounted on the side wall of the extrusion cylinder (1) via a bearing, and a threaded rod (8) threadedly inserted into the drive tube (21) is fixed to the side wall of the push plate (16), wherein the threads of the two threaded rods (8) are in opposite directions.

3. A polyvinyl chloride pipe injection molding device according to claim 1, characterized in that: The material guiding portion (14) has a conical structure, and a positioning rod (15) connected to the inner wall of the extrusion frame is fixed to the side wall of the material guiding portion (14).

4. A polyvinyl chloride pipe injection molding device according to claim 3, characterized in that: The positioning rod (15) is inserted into the push plate (16) in an aligned manner, and a sealing ring (18) is fixed to the outer wall and the inner wall of the push plate (16).

5. A polyvinyl chloride pipe injection molding device according to claim 1, characterized in that: A feed hopper (9) is fixedly mounted on the top of the outer wall of the extrusion barrel (1), and support rods (11) fixed to the cooling ring (6) are mounted in an annular array on the side wall of the extrusion barrel (1), and a sealing valve is mounted on the feed hopper (9).

6. A polyvinyl chloride pipe injection molding device according to claim 1, characterized in that: A water pump (12) is embedded in the top of the water storage tank (13), and a water inlet pipe (10) connected to a plurality of nozzles (5) is installed at the top of the water pump (12).

7. A polyvinyl chloride pipe injection molding device according to claim 1, characterized in that: A protrusion (3) is fixed to the top end of the extrusion barrel (1), a slide groove (19) with a T-shaped structure is provided on the protrusion (3), and the magnetic slider (20) is slidably inserted in the slide groove (19).

8. A polyvinyl chloride pipe injection molding device according to claim 3, characterized in that: The positioning rod (15) is provided with a mounting groove (24), and the inner wall fixing device of the mounting groove (24) has a motor (25).

9. A polyvinyl chloride pipe injection molding device according to claim 8, characterized in that: The shaft of the motor (25) extends into the extrusion barrel (1) and is fixedly connected to a rotating shaft (22); one end of the rotating shaft (22) extending out of the extrusion barrel (1) is fixedly sleeved with a second gear (23).

10. A polyvinyl chloride pipe injection molding device according to claim 9, characterized in that: The meshing assembly comprises a first gear (7) fixedly sleeved on two driving tubes (21), and the two first gears (7) are meshedly connected with the second gear (23).

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