Extrusion equipment for polyethylene raw material

Abstract

The utility model relates to the technical field of extrusion equipment, in particular to polyethylene raw material extrusion equipment which comprises a treatment bin, a filter plate is arranged in the treatment bin, one end of the filter plate is fixedly connected with a connecting rod, the connecting rod is rotatably connected with the inner side wall of the treatment bin, a vibration assembly is arranged in the treatment bin, and the vibration assembly is fixedly connected with the inner side wall of the treatment bin. The vibration assembly comprises a fixing plate fixedly connected with the inner side wall of the treatment bin, and through the vibration assembly, when the raw materials fall on the filter plate, the vibration assembly can assist the filter plate in filtering the raw materials, and meanwhile impurities and large particles in the raw materials can fall into a collecting box along the filter plate; polyethylene raw materials falling on the filter plate are in a dynamic motion state, particles collide and move in a staggered mode, the speed of the raw materials passing through the filter screen is increased, the screening efficiency is greatly improved, acting force generated by vibration enables the motion trails of impurities and large particles on the filter plate to be changed, and the impurities and the large particles can easily overcome friction force and slide into a collecting box along the filter plate.

Description

Technical Field

[0001] This utility model relates to the field of extrusion equipment technology, and in particular to an extrusion equipment for polyethylene raw materials. Background Technology

[0002] An extruder relies on the pressure and shear force generated by the rotating screw to fully plasticize and uniformly mix materials, which are then shaped through a die. Plastic extruders can be broadly classified into twin-screw extruders, single-screw extruders, and less common multi-screw extruders and screwless extruders. In most extruders, the extruder is started, and the raw material is fed through the inlet. The heating layer inside the barrel melts the material, and the screw agitates it before extrusion. In the screening stage, fixed filters are often used in conjunction with gravity or simple airflow screening. The raw material passes through the filter by its own weight, while large particles are trapped because their size prevents them from passing through.

[0003] An extrusion apparatus for polyethylene, with authorized publication number CN219446056U, includes a base. The top surface of the base is fixedly connected to a support and an extrusion device. A cylinder is fixedly connected to the top surface of the support. A feeding device is provided on the top surface of the cylinder. The feeding device includes a fixed column that penetrates the cylinder and is fixedly connected to the cylinder. When the extrusion device for polyethylene is in use, the extrusion device and the motor are started. When the output shaft of the motor rotates, it drives the rotating rod to rotate, which in turn drives the half-tooth ratchet to rotate. This causes the half-tooth ratchet to drive the ratchet rack to move, and the spring is pulled. The rotating rod drives the half-tooth ratchet to rotate continuously, which in turn causes the ratchet rack to reciprocate through the spring, causing the sector plate to open and close repeatedly, thereby achieving the effect of quantitative feeding and preventing excessive feeding from clogging the polyethylene raw material in the cylinder.

[0004] Regarding the aforementioned technologies, the existing extrusion equipment has the following drawbacks: it lacks an effective collaborative processing mechanism and cannot simultaneously assist in the dispersion of raw materials and the separation of impurities during the screening process. After the raw materials are screened by the filter screen, the filter screen needs to be cleaned separately. Therefore, this utility model provides an extrusion device for polyethylene raw materials. Utility Model Content

[0005] The purpose of this application is to provide an extrusion apparatus for polyethylene raw materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] An extrusion device for polyethylene raw materials includes a processing chamber, inside which a filter plate is disposed. One end of the filter plate is fixedly connected to a connecting rod, which is rotatably connected to the inner side wall of the processing chamber. Inside the processing chamber, a vibration assembly is disposed. The vibration assembly includes a fixed plate fixedly connected to the inner side wall of the processing chamber. A linkage column is slidably connected inside the fixed plate. A connecting ring is fixedly connected to the side wall of the linkage column. A spring is fixedly connected to the bottom of the connecting ring and the top of the fixed plate. The top of the linkage column is in contact with the bottom of the filter plate.

[0008] Preferably, the inner sidewall of the processing chamber is rotatably connected to a connecting cylinder, and an elastic rod is provided inside the connecting cylinder, the elastic rod passing through the connecting cylinder.

[0009] Preferably, one end of the elastic rod is fixedly connected to a deflection rod, and one end of the deflection rod is rotatably connected to the side wall of the connecting ring.

[0010] Preferably, a baffle plate is fixedly connected to the top of the filter plate, a motor is fixedly connected to the side wall of the treatment chamber, and a rotating block adapted to the linkage column is fixedly connected to the output end of the motor.

[0011] Preferably, a discharge nozzle is fixedly connected to the top of the processing chamber, a plurality of distributing pipes are fixedly connected to the side wall of the discharge nozzle, and a guide frame is fixedly connected to the inside of the processing chamber.

[0012] Preferably, a discharge pipe is fixedly connected to the bottom of the guide frame, a closing valve is provided on the side wall of the discharge pipe, multiple drying heating plates are provided on the inner side wall of the processing chamber, a connected collection chamber is fixedly connected to the side wall of the processing chamber, a collection box is slidably connected inside the collection chamber, and a bottom plate is provided below the collection chamber.

[0013] Preferably, an extruder barrel is fixedly connected to the top of the base plate, the top of the extruder barrel is connected to the discharge pipe, a plurality of melting heating plates are provided on the side wall of the extruder barrel, and an extruder head is provided at one end of the extruder barrel.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] The vibration component assists the filter plate in filtering the raw material when it falls onto the filter plate. It also allows impurities and large particles in the raw material to fall into the collection box along the filter plate. The combination of the fixed plate, linkage column, spring, filter plate and connecting rod drives the filter plate to vibrate repeatedly up and down, so that the polyethylene raw material falling on the filter plate is in a dynamic state. The particles collide and move with each other, which accelerates the speed of the raw material through the filter screen and greatly improves the screening efficiency. The force generated by the vibration changes the trajectory of impurities and large particles on the filter plate, making it easier for them to overcome friction and slide down the filter plate into the collection box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view axial side view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the filter plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the linkage column of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the extruder barrel of this utility model.

[0021] In the diagram: 1. Base plate; 2. Melting heating plate; 3. Collection chamber; 4. Feed nozzle; 5. Processing chamber; 6. Extruder barrel; 7. Filter plate; 8. Connecting rod; 9. Collection box; 10. Drying heating plate; 11. Guide frame; 12. Discharge pipe; 13. Closing valve; 14. Rotating block; 15. Motor; 16. Fixed plate; 17. Connecting cylinder; 18. Elastic rod; 19. Deflection rod; 20. Connecting ring; 21. Linkage column; 22. Extruder head; 23. Spring; 24. Distributor pipe; 25. Baffle plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1: Reference Figure 1-4 The extrusion equipment for polyethylene raw materials shown includes a processing chamber 5. The processing chamber 5 serves as the carrying space for the entire pretreatment process, containing the raw material and providing a space for screening, drying, and other operations. Inside the processing chamber 5, a filter plate 7 is installed. The filter plate 7 is used to screen and filter the polyethylene raw material entering the processing chamber 5, blocking impurities and large particles above the filter plate 7, allowing the qualified raw material to fall through the filter screen. A connecting rod 8 is fixedly connected to one end of the filter plate 7, and the connecting rod 8 is rotatably connected to the inner side wall of the processing chamber 5. The connecting rod 8 provides a fulcrum for the filter plate 7 to rotate, allowing the filter plate 7 to swing up and down around its axis, thereby cooperating with a vibration assembly to achieve a vibration screening function. A vibration assembly is installed inside the processing chamber 5 to drive the filter plate 7 to vibrate, improving screening efficiency and quality. The vibration assembly includes a fixed plate 16 fixedly connected to the inner side wall of the processing chamber 5. The fixed plate 16 provides a sliding track and support base for the linkage column 21, limiting... The movement direction of the linkage column 21 allows it to slide up and down only inside the fixed plate 16. The linkage column 21 is slidably connected inside the fixed plate 16. The linkage column 21 cooperates with the rotating block 14 to convert the rotation of the rotating block 14 into its own up and down displacement, thereby driving the filter plate 7 to vibrate up and down. A connecting ring 20 is fixedly connected to the side wall of the linkage column 21. The connecting ring 20 is used to fix the spring 23, so that the spring 23 can provide the return force for the linkage column 21. The bottom of the connecting ring 20 and the top of the fixed plate 16 are fixedly connected to the spring 23. The spring 23 is stretched when the linkage column 21 moves upward, storing elastic potential energy. When the rotating block 14 passes the linkage column 21, the spring 23 releases the elastic potential energy, pulling the linkage column 21 to return downward, realizing the reciprocating motion of the linkage column 21. The top of the linkage column 21 is in contact with the bottom of the filter plate 7, so that the up and down displacement of the linkage column 21 can be directly transmitted to the filter plate 7, driving the filter plate 7 to perform vibration screening operation.

[0025] Example 2: Reference Figure 1-4Based on the same concept as in Embodiment 1 above, this embodiment further proposes that a connecting cylinder 17 is rotatably connected to the inner sidewall of the processing chamber 5. The connecting cylinder 17 provides a support structure for the rotation and sliding of the elastic rod 18, ensuring that the elastic rod 18 remains stable and can flexibly change its angle during movement. The elastic rod 18 is installed inside the connecting cylinder 17, passing through the connecting cylinder 17. The elastic rod 18 can extend and slide within the connecting cylinder 17 and is elastic itself, capable of deformation under force, playing a role in buffering and transmitting force. At the same time, it converts the rotation of the connecting cylinder 17 into the swing of the deflection rod 19. One end of the elastic rod 18 is fixedly connected to the deflection rod 19, which is used to transmit the movement of the elastic rod 18 to the connecting ring 20. The swaying of the body drives the connecting ring 20 to move, which in turn affects the movement of the linkage column 21, realizing the coordinated operation of the vibration assembly. One end of the deflection rod 19 is rotatably connected to the side wall of the connecting ring 20. This rotatable connection allows the deflection rod 19 and the connecting ring 20 to flexibly transmit force and motion, ensuring the continuity and stability of the vibration assembly's movement. A baffle plate 25 is fixedly connected to the top of the filter plate 7. The baffle plate 25 is used to prevent polyethylene raw materials from overflowing from the edge of the filter plate 7 during vibration, ensuring that the raw materials are effectively screened on the filter plate 7. A motor 15 is fixedly connected to the side wall of the processing chamber 5. The motor 15 serves as the power source for the vibration assembly, providing power to the entire vibration assembly through the rotation of its output end, driving the rotating block 14 to rotate. The output end of the motor 15 is fixedly connected to... A rotating block 14 is adapted to the linkage column 21. The rotating block 14, through its own shape design, cooperates with the linkage column 21 during rotation, pushing the linkage column 21 up and down, thereby achieving vibration of the filter plate 7. A discharge nozzle 4 is fixedly connected to the top of the processing chamber 5. The discharge nozzle 4 guides the polyethylene raw material into the processing chamber 5 and serves as the inlet for the raw material entering the equipment. Multiple distribution pipes 24 are fixedly connected to the side wall of the discharge nozzle 4. The distribution pipes 24 disperse the raw material entering from the discharge nozzle 4 to different positions on the filter plate 7, making the raw material more evenly distributed on the filter plate 7 and improving screening efficiency. A guide frame 11 is fixedly connected inside the processing chamber 5. The guide frame 11 guides the screened and dried raw material to smoothly enter the discharge pipe 12, ensuring the smooth flow of the raw material. To ensure the accuracy of the feeding path, a discharge pipe 12 is fixedly connected to the bottom of the guide frame 11. The discharge pipe 12 is the channel for the raw material in the processing chamber 5 to enter the extruder barrel 6, used to transport the pre-treated raw material. A closing valve 13 is provided on the side wall of the discharge pipe 12, which can control the opening and closing of the discharge pipe 12. It is closed when the raw material is being dried to prevent undried raw material from entering the extruder barrel 6, ensuring the drying effect of the raw material. Multiple drying heating plates 10 are provided on the internal side wall of the processing chamber 5. The drying heating plates 10 generate heat to dry and preheat the polyethylene raw material in the processing chamber 5, removing moisture from the raw material and providing good raw material conditions for subsequent extrusion molding. Interconnected collection chambers 3 are fixedly connected to the side wall of the processing chamber 5.The collection chamber 3 is used to hold impurities and large particles screened off from the filter plate 7, providing installation space for the collection box 9. The collection box 9 is slidably connected inside the collection chamber 3. The collection box 9 is used to collect impurities and large particles, facilitating cleaning and keeping the inside of the equipment clean. A base plate 1 is set below the collection chamber 3. The base plate 1 serves as the basic support structure for the entire equipment, providing a stable installation platform for components such as the extruder barrel 6. The extruder barrel 6 is fixedly connected to the top of the base plate 1. The extruder barrel 6 is a key component for heating, melting, and extruding pretreated polyethylene raw materials. The raw materials are processed into the desired product shape. The top of the extruder barrel 6 is connected to the discharge pipe 12 to ensure that the pre-treated raw materials can smoothly enter the extruder barrel 6 for subsequent processing. Multiple melting heating plates 2 are installed on the side walls of the extruder barrel 6. The melting heating plates 2 provide heat to the raw materials inside the extruder barrel 6, causing the raw materials to completely melt and reach the state required for extrusion molding. An extruder die 22 is installed at one end of the extruder barrel 6. The extruder die 22 is used to extrude the molten polyethylene raw materials into products of a specific shape, determining the final shape and size of the product.

[0026] The working principle of this practical device is as follows: When using this device, the operator first puts the raw material into the feeding nozzle 4, which falls onto the filter plate 7 at different positions through multiple distribution pipes 24. The motor 15 is started, and the motor 15 rotates the rotating block 14. When the longer end of the rotating block 14 abuts against the linkage column 21, the linkage column 21 will move upward and one end of the filter plate 7 will move upward a certain distance. At this time, the spring 23 is stretched. When the rotating block 14 passes the linkage column 21, the filter plate 7 moves downward under the action of the spring 23. In this way, the filter plate 7 vibrates up and down repeatedly to screen and filter the raw material. Since the filter plate 7 is set at an inclination, impurities or large particles above the filter plate 7 fall into the collection box 9 along the filter plate 7. The filtered raw material enters the extruder barrel 6 through the guide frame 11 and the discharge pipe 12. Before entering the extruder barrel 6, the closing valve 13 will close the discharge pipe 12 first. The raw material is dried and preheated by the drying heating plate 10. Finally, it is heated in the extruder barrel 6 by the melting heating plate 2 and extruded by the extruder head 22.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An extrusion plant for polyethylene feedstock comprising a treatment bin (5), characterized in that: The inside of the processing bin (5) is provided with a filter plate (7), one end of the filter plate (7) is fixedly connected with a connecting rod (8), the connecting rod (8) is rotatably connected with the inner side wall of the processing bin (5), and the inside of the processing bin (5) is provided with a vibration assembly; The vibration assembly comprises a fixed plate (16) fixedly connected with the inner side wall of the processing bin (5), a linkage column (21) slidably connected in the fixed plate (16), a connecting ring (20) fixedly connected with the side wall of the linkage column (21), a spring (23) fixedly connected between the bottom of the connecting ring (20) and the top of the fixed plate (16), and the top of the linkage column (21) is attached to the bottom of the filter plate (7).

2. An apparatus for extruding a polyethylene feedstock as claimed in claim 1, wherein: The inside of the processing bin (5) is provided with a filter plate (7), one end of the filter plate (7) is fixedly connected with a connecting rod (8), the connecting rod (8) is rotatably connected with the inner side wall of the processing bin (5), and the inside of the processing bin (5) is provided with a vibration assembly; 3. An apparatus for extruding a polyethylene feedstock as claimed in claim 2, wherein: One end of the elastic rod (18) is fixedly connected with a deflection rod (19), and one end of the deflection rod (19) is rotatably connected with the side wall of the connecting ring (20).

4. An apparatus for extruding a polyethylene feedstock as claimed in claim 3, wherein: The top of the filter plate (7) is fixedly connected with a blocking plate (25), the side wall of the processing bin (5) is fixedly connected with a motor (15), the output end of the motor (15) is fixedly connected with a rotating block (14) matched with the linkage column (21).

5. An apparatus for extruding a polyethylene stock material according to claim 4, wherein: The top of the processing bin (5) is fixedly connected with a discharging nozzle (4), the side wall of the discharging nozzle (4) is fixedly connected with a plurality of distribution pipes (24), and the inside of the processing bin (5) is fixedly connected with a guide frame (11).

6. An apparatus for extruding a polyethylene feedstock as claimed in claim 5, wherein: The bottom of the guide frame (11) is fixedly connected with a discharging pipe (12), the side wall of the discharging pipe (12) is provided with a closing valve (13), the inner side wall of the processing bin (5) is provided with a plurality of drying heating plates (10), the side wall of the processing bin (5) is fixedly connected with a connected collecting bin (3), the inside of the collecting bin (3) is slidably connected with a collecting box (9), and the bottom of the collecting bin (3) is provided with a bottom plate (1).

7. An apparatus for extruding a polyethylene feedstock as claimed in claim 6, wherein: The top of the bottom plate (1) is fixedly connected with an extruder barrel (6), the top of the extruder barrel (6) is communicated with the discharging pipe (12), the side wall of the extruder barrel (6) is provided with a plurality of melting heating plates (2), and one end of the extruder barrel (6) is provided with an extruder head (22).

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