Pelletizing and forming device of PE plastic extruder

Abstract

The utility model relates to the technical field of extruders and discloses a PE plastic extruder granulation forming device which comprises a shell, a flange is fixedly connected to the top end face of the shell, an extrusion plate is fixedly connected to the inner wall of the flange, a first motor is fixedly connected to the top end face of the shell, and the output end of the first motor is fixedly connected with a rotating shaft. A pelletizing device is arranged on the side wall of the rotating shaft, and a screening device is arranged on the inner wall of the shell. According to the granulation forming device of the PE plastic extruder, the shifting rod downwards presses the movable inclined plate to enable the movable inclined plate to shake up and down, so that plastic particles are shaken, the probability that the plastic particles which are not thoroughly cooled are bonded together is reduced, the product quality is improved, mechanical blockage caused by particle bonding or accumulation is avoided, the cam upwards jacks the shaking plate, the shaking plate is prevented from being blocked, and the production efficiency is improved. The separation of the plastic particles bonded together is promoted, the number of the bonded particles is reduced, the uniformity of the collected plastic particles is ensured, and the quality of a final product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, and specifically relates to a granulation and forming device for a PE plastic extruder. Background Technique

[0002] An extruder is a type of plastic machinery. According to the angle between the material flow direction of the die head and the center line of the screw, the die head can be divided into a right-angle die head and an oblique-angle die head. The screw extruder generates pressure and shear force through the rotation of the screw, enabling the material to be fully plasticized and evenly mixed, and forming through the die. Plastic extruders are mainly divided into twin-screw extruders, single-screw extruders, as well as the relatively rare multi-screw extruders and screwless extruders. A granulation and forming device is provided inside the extruder for granulating the material.

[0003] According to a disclosed granulation and forming device for an extruder (Publication No.: CN215703142U), a water spraying bar is provided on the granulation tube in the above application. The granulation tube is arranged in a circular tube shape, the water spraying bar is arranged in a triangular strip shape, the water spraying bar and the granulation tube are arranged integrally, granulation blades are provided on the water spraying bar, the granulation blades and the water spraying bar are arranged integrally, a plurality of water spraying holes are provided on the water spraying bar, and the depth of the water spraying holes is set to be the same as the thickness of the water spraying bar. A liquid spraying tank is provided at the front end of the granulation tube.

[0004] However, in the actual use process of the above granulation and forming device, although this design can cool the cut PE plastic to prevent it from sticking together, due to the time required for the PE plastic to cool, when it has not been fully cooled, the contact of plastic particles will still cause sticking. These sticky plastic particles will reduce the quality of the final product; in view of this, we have proposed a granulation and forming device for a PE plastic extruder. Summary of the Invention

[0005] The purpose of the utility model is to provide a granulation and forming device for a PE plastic extruder to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A granulation and forming device for a PE plastic extruder, including a housing. A flange is fixedly connected to the top end face of the housing. The inner wall of the flange is fixedly connected with an extrusion plate. A first motor is fixedly connected to the top end face of the housing. The output end of the first motor is fixedly connected with a rotating shaft. A granulation device is arranged on the side wall of the rotating shaft. A water storage box is fixedly connected to the inner wall of the housing. A collection box is movably connected to the bottom inner surface of the housing. A screening device is arranged on the inner wall of the housing. The screening device includes:

[0007] A stirring rod, which is fixedly connected to the side wall of the rotating shaft;

[0008] Movable inclined plate, an inner wall of the housing is fixedly connected with a movable inclined plate, a water drainage groove is formed on a top end face of the movable inclined plate, and a through hole is formed on a side of the movable inclined plate away from the water drainage groove;

[0009] Limit block, a side wall of the housing is fixedly connected with a limit block, a mounting flat plate is fixedly connected to a bottom end face of the limit block, and a first spring is fixedly connected to a top end face of the mounting flat plate;

[0010] Vibrating plate, a vibrating plate is hinged to an inner wall of the housing away from the limit block;

[0011] Vibrating inclined plate, a vertical plate is fixedly connected to an inner wall of the housing, an inclined block is fixedly connected to a side wall of the vertical plate, a vibrating inclined plate is slidably connected to a bottom of the inclined block, a connecting frame is fixedly connected to a side wall of the vibrating inclined plate, and the connecting frame is slidably connected to a side wall of the housing;

[0012] Second spring, a discharge port is fixedly connected to a side wall of the housing, a vertical block is fixedly connected to a bottom end face of the discharge port, a second spring is fixedly connected to a side wall of the vertical block, and a side wall of the second spring is fixedly connected to the connecting frame;

[0013] Poking rod, a second motor is fixedly connected to a side wall of the housing, an output shaft of the second motor is in transmission connection with a rotating rod through a sleeved belt, the rotating rod is sleeved on a side wall of the housing, a cam is fixedly connected to a side wall of the rotating rod, and a poking rod is fixedly connected to a side wall of the rotating rod.

[0014] Preferably, a hinge plate is hinged to a bottom of the movable inclined plate, a limit frame is fixedly connected to a side wall of the water storage box, the limit frame is movably connected to the hinge plate, and the hinge plate is movably connected to a side wall of the water storage box.

[0015] Preferably, filter holes are formed on a top end face of the vibrating inclined plate, non-adhered PE plastic particles pass through the filter holes and then fall into the collection box.

[0016] Preferably, a mounting seat is fixedly connected to a side wall of the rotating shaft, a scraper is fixedly connected to a side wall of the mounting seat, the mounting seat and the scraper are hollow, spray openings are formed on an outer wall of the scraper, a water pipe is fixedly connected to an outer wall of the housing, the water pipe is fixedly connected to a connecting pipe, the connecting pipe is sleeved on the rotating shaft, and the connecting pipe is communicated with an inside of the mounting seat.

[0017] Preferably, a baffle is fixedly connected to an inner top surface of the housing, and the baffle blocks the cut PE plastic particles to make the PE plastic particles fall downward.

[0018] Preferably, the poking rod is movably connected to the movable inclined plate, and the poking rod is movably connected to the connecting frame.

[0019] Compared with the prior art, the utility model provides a granulation and forming device for a PE plastic extruder, which has the following beneficial effects:

[0020] 1. In this granulation and forming device for a PE plastic extruder, through the arranged movable inclined plate, jitter plate and jitter inclined plate, the push rod presses the movable inclined plate downward to make the movable inclined plate jitter up and down. Consequently, the plastic particles jitter, reducing the probability of unthoroughly cooled plastic particles sticking together, improving the quality of the product. At the same time, it speeds up the sliding speed of the plastic particles from the movable inclined plate to the collection box, enhancing the separation efficiency, avoiding mechanical blockage caused by particle adhesion or accumulation. The cam jacks up the jitter plate upward to promote the separation of the plastic particles sticking together, reducing the number of agglomerated particles, ensuring the uniformity of the collected plastic particles, and improving the quality of the final product. Through the lateral movement of the jitter inclined plate, the contact opportunity between the plastic particles and the filter holes is increased, improving the screening efficiency, ensuring the quality and consistency of the final product. The plastic particles that have not passed through the screening are discharged through the discharge port and then recycled, reducing the generation of waste and enhancing the resource utilization rate.

[0021] 2. In this granulation and forming device for a PE plastic extruder, through the arranged hinged plate and baffle, the bottom of the movable inclined plate is always divided into two parts, preventing water from passing over the water storage box at the bottom of the movable inclined plate and falling into the collection box, ensuring that the separation effect between the plastic particles and water will not be damaged due to the movement of the movable inclined plate, thus maintaining the continuous and effective separation of water and plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 is of the utility model Figure 1 a schematic diagram of the structure of area A;

[0024] Figure 3 is a schematic sectional view of the housing of the utility model;

[0025] Figure 4 is a schematic bottom view of the housing of the utility model;

[0026] Figure 5 is a schematic diagram of the granulation device of the utility model;

[0027] Figure 6 is a schematic diagram of the movable inclined plate of the utility model;

[0028] Figure 7 is a schematic diagram of the jitter inclined plate of the utility model;

[0029] Figure 8 is of the utility model Figure 7 a schematic diagram of the structure of area B.

[0030] In the figure: 1. shell; 2. flange; 3. extrusion plate; 4. motor 1; 5. rotating shaft; 6. mounting seat; 7. scraper; 8. spray port; 9. water pipe; 10. connecting pipe; 11. lever; 12. movable inclined plate; 13. drain groove; 14. through hole; 15. limit block; 16. mounting plate; 17. spring 1; 18. water storage box; 19. collecting box; 20. vertical plate; 21. shaking plate; 22. oblique block; 23. shaking inclined plate; 24. connecting frame; 25. discharge port; 26. vertical block; 27. spring 2; 28. motor 2; 29. rotating rod; 30. belt; 31. cam; 32. lever; 33. limit frame; 34. hinged plate; 35. baffle. DETAILED DESCRIPTION

[0031] like Figures 1-8 As shown, the utility model provides a technical solution: a PE plastic extruder granulation molding device, including a shell 1, the top end face of the shell 1 is fixedly connected with a flange 2, the inner wall of the flange 2 is fixedly connected with an extrusion plate 3, the top end face of the shell 1 is fixedly connected with a motor 4, the output end of the motor 4 is fixedly connected with a rotating shaft 5, the side wall of the rotating shaft 5 is provided with a pelletizing device, the inner wall of the shell 1 is fixedly connected with a water storage box 18, the side wall of the water storage box 18 is fixedly connected with a limiting frame 33, the inner wall of the shell 1 The bottom surface of the housing 1 is movably connected with a collecting box 19, and the inner wall of the housing 1 is provided with a screening device, which includes a lever 11, a movable inclined plate 12, a drain groove 13, a through hole 14, a limit block 15, a mounting plate 16, a spring 17, a vertical plate 20, a shaking plate 21, an oblique block 22, a shaking inclined plate 23, a connecting frame 24, a discharge port 25, a vertical block 26, a spring 27, a motor 28, a rotating rod 29, a belt 30, a cam 31, a lever 32, a limit frame 33, and a hinged plate 34.

[0032] In one embodiment of the utility model, the side wall of the rotating shaft 5 is fixedly connected with a lever 11, the inner wall of the shell 1 is fixedly connected with a movable inclined plate 12, the top end surface of the movable inclined plate 12 is provided with a drain groove 13, and the side of the movable inclined plate 12 away from the drain groove 13 is provided with a through hole 14, the lever 11 is movably connected to the movable inclined plate 12, the bottom of the movable inclined plate 12 is hinged with a hinge plate 34, the limit frame 33 is movably connected to the hinge plate 34, the hinge plate 34 is movably connected to the side wall of the water storage box 18, the side wall of the shell 1 is fixedly connected with a limit block 15, the bottom end surface of the limit block 15 is fixedly connected with a mounting plate 16, and the top end surface of the mounting plate 16 is fixedly connected with a spring 17.

[0033] A shaking plate 21 is hingedly connected to the inner wall of the shell 1 on one side away from the limit block 15, and a vertical plate 20 is fixedly connected to the inner wall of the shell 1. The side wall of the vertical plate 20 is fixedly connected to an oblique block 22. The bottom of the oblique block 22 is slidably connected to a shaking inclined plate 23. The side wall of the shaking inclined plate 23 is fixedly connected to a connecting frame 24. The connecting frame 24 is slidably connected to the side wall of the shell 1. A filtering hole is opened on the top end face of the shaking inclined plate 23. The PE plastic particles that are not stuck together pass through the filtering hole and then fall into the collection box 19. The side wall of the shell 1 is fixedly connected There is a discharge port 25, the bottom end face of the discharge port 25 is fixedly connected with a vertical block 26, the side wall of the vertical block 26 is fixedly connected with a spring 27, the side wall of the spring 27 is fixedly connected to the connecting frame 24, the side wall of the shell 1 is fixedly connected with a motor 28, the output shaft of the motor 28 is transmission connected with a rotating rod 29 through a sleeved belt 30, the rotating rod 29 is sleeved with the side wall of the shell 1, the side wall of the rotating rod 29 is fixedly connected with a cam 31, the side wall of the rotating rod 29 is fixedly connected with a toggle rod 32, and the toggle rod 32 is movably connected to the connecting frame 24.

[0034] The screening device includes a mounting seat 6, a side wall of a rotating shaft 5 is fixedly connected to the mounting seat 6, a side wall of the mounting seat 6 is fixedly connected to a scraper 7, the mounting seat 6 and the scraper 7 are hollow, a spray port 8 is provided on the outer wall of the scraper 7, a water pipe 9 is fixedly connected to the outer wall of the shell 1, the water pipe 9 is fixedly connected to a connecting pipe 10, the connecting pipe 10 is sleeved with the rotating shaft 5, and the connecting pipe 10 is connected to the inside of the mounting seat 6, a baffle 35 is fixedly connected to the inner top surface of the shell 1, the baffle 35 blocks the cut PE plastic particles and causes the PE plastic particles to fall downward.

[0035] The technology in this application that the scraper 7 cuts the PE plastic extruded from the extrusion plate 3 into particles and then cools it with cooling water is the same as the comparative document "A Granulation Forming Device of an Extruder" (Announcement No.: CN215703142U) cited in this application, which cuts the plastic into particles and then cools it with cooling water, so it will not be repeated here.

[0036] The plastic particles and water fall on the movable inclined plate 12, and then slide along the inclined surface. The water flows into the water storage box 18 through the hydrophobic groove 13, and the plastic particles that are not bonded together fall into the collection box 19 through the through hole 14, separating the plastic particles from the water, simplifying the subsequent processing steps. The collected water can be recycled, saving water resources and reducing production costs.

[0037] The motor 4 starts to drive the rotating shaft 5 and the lever 11 to rotate, the lever 11 presses the movable inclined plate 12 downward, and then the spring 17 pushes the movable inclined plate 12 to return to its original position, so that the plastic particles are shaken, thereby reducing the probability of the plastic particles that have not been completely cooled sticking together, improving the quality of the product, and at the same time accelerating the sliding speed of the plastic particles from the movable inclined plate 12 to the collection box 19, thereby improving the separation efficiency and avoiding mechanical blockage due to particle adhesion or accumulation.

[0038] The plastic particles that are stuck together and the plastic particles that have not passed through the through hole 14 fall onto the shaking plate 21, and the motor 28 is started to drive the output shaft to rotate, and then the belt 30 drives the rotating rod 29 to rotate. The rotation of the rotating rod 29 drives the cam 31 to rotate, and the cam 31 pushes the shaking plate 21 upward, which promotes the separation of the plastic particles stuck together, reduces the number of stuck particles, ensures that the collected plastic particles are uniform, and improves the quality of the final product.

[0039] Then these plastic particles fall onto the shaking inclined plate 23, and the rotation of the rotating rod 29 drives the toggle rod 32 to toggle the connecting frame 24 and the shaking inclined plate 23 to move horizontally. The spring 27 is responsible for resetting the connecting frame 24 and the shaking inclined plate 23, promoting the screening of the plastic particles, allowing the plastic particles to pass through the filter holes and be collected by the collecting box 19. The horizontal movement of the shaking inclined plate 23 increases the contact opportunity between the plastic particles and the filter holes, improves the screening efficiency, and ensures the quality and consistency of the final product. The plastic particles that have not been screened are discharged through the discharge port 25 and then recycled and reused, reducing the generation of waste and improving resource utilization.

[0040] In addition, a hinged plate 34 is hinged at the bottom of the movable inclined plate 12, and the side wall of the water storage box 18 is fixedly connected to a limiting frame 33, the limiting frame 33 is movably connected to the hinged plate 34, and the hinged plate 34 is movably connected to the side wall of the water storage box 18. When the movable inclined plate 12 moves up and down, the limiting frame 33 cooperates with the hinged plate 34, so that the bottom of the movable inclined plate 12 is always divided into two parts, preventing water from crossing the water storage box 18 at the bottom of the movable inclined plate 12 and falling into the collection box 19, ensuring that the separation effect of plastic particles and water will not be destroyed due to the movement of the movable inclined plate 12, thereby maintaining continuous and effective separation of water and plastic particles.

[0041] In the present utility model, during use, plastic particles and water fall onto the movable inclined plate 12 and slide along the inclined surface. The water flows into the water storage box 18 through the water drainage groove 13, and the plastic particles that are not bonded together fall into the collection box 19 through the through holes 14. The lever 11 presses down the movable inclined plate 12, and then the first spring 17 pushes the movable inclined plate 12 to reset, causing the plastic particles to vibrate. The plastic particles bonded together and the plastic particles that do not pass through the through holes 14 fall onto the vibrating plate 21. The cam 31 jacks up the vibrating plate 21 upward to promote the separation of the plastic particles bonded together. These plastic particles fall onto the vibrating inclined plate 23, and the lateral movement of the vibrating inclined plate 23 enables the plastic particles to pass through the filtering holes. Further, when the movable inclined plate 12 moves up and down, through the cooperation of the limit frame 33 and the hinge plate 34, the bottom of the movable inclined plate 12 is always divided into two parts, ensuring that the separation effect of the plastic particles and water will not be damaged due to the movement of the movable inclined plate 12.

[0042] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements that do not depart from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A granulation forming device for a PE plastic extruder, comprising a housing (1), wherein a flange (2) is fixedly connected to the top end face of the housing (1), and an extrusion plate (3) is fixedly connected to the inner wall of the flange (2), characterized in that: The top end surface of the shell (1) is fixedly connected to a motor 1 (4), the output end of the motor 1 (4) is fixedly connected to a rotating shaft (5), the side wall of the rotating shaft (5) is provided with a pelletizing device, the inner wall of the shell (1) is fixedly connected to a water storage box (18), the inner bottom surface of the shell (1) is movably connected to a collecting box (19), and the inner wall of the shell (1) is provided with a screening device, which comprises: A lever (11), the side wall of the rotating shaft (5) being fixedly connected to the lever (11); A movable inclined plate (12), the inner wall of the housing (1) being fixedly connected to the movable inclined plate (12), a top end surface of the movable inclined plate (12) being provided with a drainage groove (13), and a through hole (14) being provided on a side of the movable inclined plate (12) away from the drainage groove (13); A limit block (15), wherein the side wall of the housing (1) is fixedly connected to the limit block (15), the bottom end surface of the limit block (15) is fixedly connected to a mounting plate (16), and the top end surface of the mounting plate (16) is fixedly connected to a spring 1 (17); A shaking plate (21), the shaking plate (21) being hingedly connected to an inner wall of a side of the housing (1) away from the limiting block (15); A shaking inclined plate (23), wherein the inner wall of the housing (1) is fixedly connected to a vertical plate (20), the side wall of the vertical plate (20) is fixedly connected to an inclined block (22), the bottom of the inclined block (22) is slidably connected to the shaking inclined plate (23), the side wall of the shaking inclined plate (23) is fixedly connected to a connecting frame (24), and the connecting frame (24) is slidably connected to the side wall of the housing (1); Spring 2 (27), the side wall of the housing (1) is fixedly connected to the discharge port (25), the bottom end surface of the discharge port (25) is fixedly connected to a vertical block (26), the side wall of the vertical block (26) is fixedly connected to spring 2 (27), and the side wall of the spring 2 (27) is fixedly connected to the connecting frame (24); A toggle rod (32), the side wall of the housing (1) is fixedly connected to a second motor (28), the output shaft of the second motor (28) is transmission-connected to a rotating rod (29) via a sleeved belt (30), the rotating rod (29) is sleeved with the side wall of the housing (1), the side wall of the rotating rod (29) is fixedly connected to a cam (31), and the side wall of the rotating rod (29) is fixedly connected to the toggle rod (32).

2. A granulation forming device for a PE plastic extruder according to claim 1, characterized in that: The bottom of the movable inclined plate (12) is hinged with a hinged plate (34), the side wall of the water storage box (18) is fixedly connected to a limiting frame (33), the limiting frame (33) is movably connected to the hinged plate (34), and the hinged plate (34) is movably connected to the side wall of the water storage box (18).

3. A granulation forming device for a PE plastic extruder according to claim 1, characterized in that: The top end surface of the shaking inclined plate (23) is provided with a filtering hole.

4. A granulation and forming device for a PE plastic extruder according to claim 1, characterized in that: The side wall of the rotating shaft (5) is fixedly connected to a mounting seat (6), the side wall of the mounting seat (6) is fixedly connected to a scraper (7), the mounting seat (6) and the scraper (7) are hollow, the outer wall of the scraper (7) is provided with a spray port (8), the outer wall of the shell (1) is fixedly connected to a water pipe (9), the water pipe (9) is fixedly connected to a connecting pipe (10), the connecting pipe (10) is sleeved with the rotating shaft (5), and the connecting pipe (10) is connected to the inside of the mounting seat (6).

5. A granulation forming device for a PE plastic extruder according to claim 1, characterized in that: A baffle (35) is fixedly connected to the inner top surface of the housing (1).

6. A granulation forming device for a PE plastic extruder according to claim 1, characterized in that: The shifting rod (11) is movably connected to the movable inclined plate (12), and the shifting rod (32) is movably connected to the connecting frame (24).

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