Extrusion device for polyethylene

Abstract

The utility model discloses an extrusion device for polyethylene, and relates to the technical field of polyethylene, the extrusion device for polyethylene comprises a cylinder body, the top of the cylinder body is provided with a blanking device, the side surface of the cylinder body is fixedly provided with a motor, an output shaft of the motor is fixedly provided with a rotating shaft, the outer side of the rotating shaft is fixedly provided with a spiral plate, and the spiral plate is fixedly provided with a screw. And an extrusion opening is fixedly formed in the side, away from the motor, of the barrel, a mounting shell is fixedly mounted on the inner wall of the extrusion opening, a limiting seat is fixedly mounted on the inner wall of the mounting shell, and a rotating roller is fixedly mounted at the end, away from the motor, of a rotating shaft. According to the extrusion device for polyethylene, the sliding rod moves in the direction close to the extrusion opening under the limitation of the limiting seat, the dredging needle is driven to move in a reciprocating mode in the direction of the extrusion opening, the extrusion opening is dredged, blockage of the extrusion opening due to polyethylene condensation is avoided, and use of equipment is effectively guaranteed; and a worker does not need to regularly clean the extrusion opening.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene, in particular to an extrusion device for polyethylene. Background Art

[0002] Polyethylene is a widely used plastic material, which is made by polymerizing ethylene monomers. It is often used to make packaging films, plastic bags, bottles and containers, etc. It is used for packaging of food, daily necessities and industrial products. It is an important plastic material and is widely used in packaging, construction, medical, automobile, electronics and other fields. Its excellent chemical stability, plasticity and electrical insulation properties make it an ideal choice for manufacturing various products and materials.

[0003] The utility model patent disclosed as CN219446056U discloses an extrusion device for polyethylene, including a base, the top surface of the base is fixedly connected to a support seat and an extrusion device, the top surface of the support seat is fixedly connected to a cylinder, the top surface of the cylinder is provided with a feeding device, and the feeding device includes: a fixed column, the fixed column penetrates the cylinder, and the fixed column is fixedly connected to the cylinder. The above application document enables the fan-shaped plate to open and close repeatedly, so as to achieve the effect of quantitative feeding, and prevent the polyethylene raw material in the cylinder from being blocked due to excessive feeding, but the extrusion port is in contact with the outside air, which may cause the polyethylene to condense when it is cold, resulting in the blockage of the extrusion port. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an extrusion device for polyethylene, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: an extrusion device for polyethylene, including a cylinder, a feeding device is arranged on the top of the cylinder, a motor is fixedly installed on the side of the cylinder, a rotating shaft is fixedly installed on the output shaft of the motor, a spiral plate is fixedly installed on the outer side of the rotating shaft, an extrusion port is fixedly installed on the side of the cylinder away from the motor, a mounting shell is fixedly installed on the inner wall of the extrusion port, a limit seat is fixedly installed on the inner wall of the mounting shell, a rotating roller is fixedly installed on the end of the rotating shaft away from the motor, a sliding rod is slidably clamped on the surface of the rotating roller, the sliding rod is slidably connected to the limit seat, a fixed seat is fixedly installed on the front side of the sliding rod, and a dredging needle is fixedly installed on the side of the fixed seat close to the extrusion port.

[0005] Preferably, the spiral plate is rotatably connected to the cylinder, and the center of the cylinder is colinear with the center of the rotating shaft, so that the spiral plate can push the polyethylene raw material to move to a side close to the extrusion port.

[0006] Preferably, an arc-shaped groove is provided on the outer surface of the rotating roller, there are two sliding rods and rectangular protrusions are fixedly installed on the opposite sides of the two sliding rods, and the arc-shaped groove and the rectangular protrusion are consistent in size and specification, so that when the rotating roller rotates, the sliding rod moves back and forth horizontally through the cooperation of the arc-shaped groove and the rectangular protrusion.

[0007] Preferably, a rectangular opening is provided on one side of the limit seat close to the center of the mounting shell, the center of the dredging needle is colinear with the center of the extrusion port, and the extrusion port is dredged when the dredging needle is displaced horizontally. The mounting shell can effectively prevent polyethylene from sticking to the groove on the outer surface of the rotating roller.

[0008] Preferably, a condenser is embedded in the inner wall of the cylinder, a protective shell is fixedly installed on the outer surface of the cylinder, a circulating water pump is fixedly installed inside the protective shell, the circulating water pump is fixed and connected to the condenser, a trigger switch is fixedly installed on the side of the circulating water pump, the trigger switch is electrically connected to the circulating water pump, and an expansion ball is fixedly installed inside the protective shell, and the trigger switch is automatically opened by the expansion of the expansion ball due to heat.

[0009] Preferably, the expansion ball is made of rubber material and is in contact with the trigger switch, and the condenser is arranged in a spiral structure, and the cylinder is cooled by the flow of liquid inside the condenser.

[0010] The utility model provides an extrusion device for polyethylene, which has the following beneficial effects:

[0011] (1) In the present invention, the slide rod is moved toward the extrusion outlet under the restriction of the limit seat, so as to drive the dredging needle to move back and forth toward the extrusion outlet and dredge the extrusion outlet, thereby preventing the extrusion outlet from being blocked due to polyethylene condensation, effectively ensuring the use of the equipment, and eliminating the need for staff to clean the extrusion outlet regularly.

[0012] (2) In the present invention, the volume of the expansion ball is increased, and the expansion ball contacts the trigger switch, thereby turning on the trigger switch, and turning on the circulating water pump to drive the liquid inside the condenser tube to circulate, thereby reducing the temperature of the cylinder through the liquid flow in the condenser tube, thereby preventing the internal high temperature from affecting the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the entire utility model;

[0014] Figure 2 It is a schematic diagram of the overall cross section of the utility model;

[0015] Figure 3 It is a schematic diagram of the explosion of the installation shell and the rotating roller of the utility model;

[0016] Figure 4This is a schematic diagram of the cylinder and condenser tube of the utility model;

[0017] Figure 5 This is a schematic diagram of the protective shell and circulating water pump of the utility model.

[0018] In the figure: 1. Cylinder; 2. Feeding device; 3. Extrusion port; 4. Motor; 5. Rotating shaft; 6. Screw plate; 7. Mounting shell; 8. Limiting seat; 9. Rotating roller; 10. Sliding rod; 11. Fixed seat; 12. Unclogging needle; 13. Condenser; 14. Circulating water pump; 15. Trigger switch; 16. Expansion ball; 17. Protective shell. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1

[0021] See also Figure 1-3 , a polyethylene extrusion device comprises a cylinder 1, a feeding device 2 is arranged on the top of the cylinder 1, a motor 4 is fixedly installed on the side of the cylinder 1, a rotating shaft 5 is fixedly installed on the output shaft of the motor 4, a spiral plate 6 is fixedly installed on the outer side of the rotating shaft 5, the spiral plate 6 is rotatably connected with the cylinder 1, the center of the cylinder 1 is in line with the center of the rotating shaft 5, so that the spiral plate 6 can push the polyethylene raw material to move to the side close to the extrusion port 3, an extrusion port 3 is fixedly installed on the side of the cylinder 1 away from the motor 4, a mounting shell 7 is fixedly installed on the inner wall of the extrusion port 3, a limited seat 8 is fixedly installed on the inner wall of the mounting shell 7, a rotating roller 9 is fixedly installed on the end of the rotating shaft 5 away from the motor 4, an arc-shaped groove is opened on the outer surface of the rotating roller 9, the number of sliding rods 10 is two, and rectangular protrusions are fixedly installed on the opposite sides of the two sliding rods 10, the arc-shaped groove is consistent with the size and specification of the rectangular protrusion, so that when the rotating roller 9 rotates, the arc-shaped groove and the rectangular protrusion are passed through the rectangular protrusion. The cooperation of the shaped raised blocks enables the slide bar 10 to move back and forth horizontally, and the slide bar 10 is slidably clamped on the surface of the rotating roller 9, and the slide bar 10 is slidably connected to the limit seat 8. A fixed seat 11 is fixedly installed on the front side of the slide bar 10, and a dredging needle 12 is fixedly installed on the side of the fixed seat 11 close to the extrusion port 3. A rectangular opening is provided on the side of the limit seat 8 close to the center of the mounting shell 7, and the center of the dredging needle 12 is colinear with the center of the extrusion port 3. When the dredging needle 12 is displaced in the horizontal direction, the extrusion port 3 is dredged, and the mounting shell 7 can effectively prevent polyethylene from sticking to the groove on the outer surface of the rotating roller 9. In the utility model, the slide bar 10 is displaced in the direction close to the extrusion port 3 under the restriction of the limit seat 8, thereby driving the dredging needle 12 to move back and forth in the direction of the extrusion port 3 and dredge the extrusion port 3, thereby avoiding the extrusion port 3 from being blocked due to the condensation of polyethylene, effectively ensuring the use of the equipment, and there is no need for the staff to clean the extrusion port 3 regularly.

[0022] When in use, the raw material is loaded into the cylinder 1 through the unloading device 2, and the raw material is heated and melted in the cylinder 1, and gradually moves to a position close to the extrusion port 3 through the spiral plate 6. When the rotating shaft 5 rotates, it drives the rotating roller 9 to rotate, so that the slide bar 10 moves back and forth horizontally along the groove on the side of the rotating roller 9. The slide bar 10 is restricted by the limit seat 8 and moves toward the extrusion port 3. At the same time, the mounting shell 7 protects the outer surface of the rotating roller 9 to prevent the melted polyethylene from adhering to the groove of the rotating roller 9. The slide bar 10 drives the fixed seat 11 to move back and forth horizontally, and drives the dredging needle 12 to move back and forth in the direction of the extrusion port 3 through the fixed seat 11. The dredging needle 12 moves to the center of the extrusion port 3 to dredge the extrusion port 3 to prevent the extrusion port 3 from being blocked due to polyethylene condensation, effectively ensuring the use of the equipment, and there is no need for staff to clean the extrusion port 3 regularly.

[0023] Embodiment 2

[0024] See also Figure 4-5 On the basis of the first embodiment, a condenser 13 is embedded in the inner wall of the cylinder 1, a protective shell 17 is fixedly installed on the outer surface of the cylinder 1, a circulating water pump 14 is fixedly installed inside the protective shell 17, the circulating water pump 14 is fixed and connected to the condenser 13, a trigger switch 15 is fixedly installed on the side of the circulating water pump 14, the trigger switch 15 is electrically connected to the circulating water pump 14, an expansion ball 16 is fixedly installed inside the protective shell 17, the expansion ball 16 is heated and expanded, and the trigger switch 15 is automatically opened, the expansion ball 16 is made of rubber material and the expansion ball 16 is in contact with the trigger switch 15, the condenser 13 is a spiral structure, and the cylinder 1 is cooled by the flow of liquid inside the condenser 13. In the present invention, the volume of the expansion ball 16 is increased, and the expansion ball 16 is in contact with the trigger switch 15, so that the trigger switch 15 is turned on, so that the circulating water pump 14 is turned on to drive the liquid circulation inside the condenser 13, so that the temperature of the cylinder 1 is reduced through the liquid circulation of the condenser 13, and the internal high temperature is avoided to affect the device.

[0025] During use, based on the first embodiment, when the temperature inside the cylinder 1 increases, the gas inside the expansion ball 16 is driven to expand, thereby increasing the volume of the expansion ball 16. The expansion ball 16 contacts the trigger switch 15, turning on the trigger switch 15, turning on the circulating water pump 14 to drive the liquid inside the condenser 13 to circulate, thereby lowering the temperature of the cylinder 1 through the liquid circulation in the condenser 13.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polyethylene extrusion device, comprising a barrel (1), characterized in that: A feeding device (2) is arranged on the top of the cylinder (1), a motor (4) is fixedly mounted on the side of the cylinder (1), a rotating shaft (5) is fixedly mounted on the output shaft of the motor (4), a spiral plate (6) is fixedly mounted on the outer side of the rotating shaft (5), an extrusion port (3) is fixedly mounted on the side of the cylinder (1) away from the motor (4), a mounting shell (7) is fixedly mounted on the inner wall of the extrusion port (3), a limiting seat (8) is fixedly mounted on the inner wall of the mounting shell (7), a rotating roller (9) is fixedly mounted on the end of the rotating shaft (5) away from the motor (4), a sliding rod (10) is slidably engaged on the surface of the rotating roller (9), the sliding rod (10) is slidably connected to the limiting seat (8), a fixed seat (11) is fixedly mounted on the front side of the sliding rod (10), and a dredging needle (12) is fixedly mounted on the side of the fixed seat (11) close to the extrusion port (3).

2. The extrusion device for polyethylene according to claim 1, characterized in that: The spiral plate (6) is rotatably connected to the cylinder (1), and the center of the cylinder (1) is colinear with the center of the rotating shaft (5).

3. The extrusion device for polyethylene according to claim 2, characterized in that: The outer surface of the rotating roller (9) is provided with an arc-shaped groove, the number of the sliding rods (10) is two, and rectangular protruding blocks are fixedly installed on the opposite sides of the two sliding rods (10), and the size specifications of the arc-shaped groove and the rectangular protruding block are consistent.

4. The extrusion device for polyethylene according to claim 3, characterized in that: A rectangular opening is provided on one side of the limiting seat (8) close to the center of the mounting shell (7), and the center of the dredging needle (12) is colinear with the center of the extrusion port (3).

5. The extrusion device for polyethylene according to claim 4, characterized in that: A condenser (13) is embedded in the inner wall of the cylinder (1); a protective shell (17) is fixedly installed on the outer surface of the cylinder (1); a circulating water pump (14) is fixedly installed inside the protective shell (17); the circulating water pump (14) is fixed to and connected with the condenser (13); a trigger switch (15) is fixedly installed on the side of the circulating water pump (14); the trigger switch (15) is electrically connected to the circulating water pump (14); and an expansion ball (16) is fixedly installed inside the protective shell (17).

6. The extrusion device for polyethylene according to claim 5, characterized in that: The expansion ball (16) is made of rubber material and is in contact with the trigger switch (15); and the condensation tube (13) is arranged in a spiral structure.

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