Plastic extruding machine with preheating function

Abstract

The utility model provides a plastic extruding machine with a preheating function, and belongs to the field of plastic extruding machines. The problems that part of plastic extruding machines adopt simple hot air heating, raw plastic particles are accumulated in a stock bin, the raw particles close to a heat source are excessively heated, and the raw particles far away from the heat source are insufficient in preheating are solved. The plastic extruding machine with the preheating function is characterized by comprising a storage top frame, and a heating interlayer bin is arranged at the inner end of the storage top frame. The device has the advantages that the preheating electric heating wire in the heating interlayer bin is used for heating air, uniform preheating, stirring and efficient conveying stages of raw plastic particles are achieved through heat conduction, the autorotation inner rod is driven by the motor to drive the stirring extension inner rod to do composite motion through the independent sleeve rod hollow column, the side edge hollow groove shaft and the universal ball connecting block, and the stirring effect is achieved. And the plastic raw particles are turned between the arc-shaped path surface enclosure frame rings, so that the raw particles are in full contact with heat, and the preheating uniformity is improved.

Description

Technical Field

[0001] This utility model belongs to the field of extrusion machines and relates to a plastic extrusion machine with a preheating function. Background Technology

[0002] A plastic extruder, also known as a plastic extruder, is a key piece of equipment in the plastics processing industry. It is widely used in the production of plastic products such as pipes, sheets, and films. When plastic granules enter the barrel from the hopper, the rotation of the screw propels the granules forward along the screw groove. During this process, the plastic granules are heated by the heating coils outside the barrel. Subsequently, the screw continuously applies pressure, extruding the molten plastic through a die with a specific shape, thereby obtaining plastic products with different cross-sectional shapes.

[0003] Some plastic extruders use simple hot air heating, where plastic granules accumulate in the hopper. Granules near the heat source are overheated, while granules far from the heat source are underheated. This results in inconsistent states of the plastic granules entering the extruder, which can easily lead to uneven plasticization during the extrusion process, resulting in quality defects in plastic products such as bubbles, deformation, and insufficient strength. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a plastic extruder with auxiliary mixing and preheating functions.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A plastic extruder with preheating function is characterized by comprising a storage top frame, an inner end of which is provided with a heating jacket, a preheating heating wire fixedly connected to the inner side wall of the heating jacket, a sealing top cover fixedly connected to the upper end of the storage top frame, a rotating inner rod fixedly connected to the lower inner wall of the storage top frame, a plurality of individually sleeved hollow columns fixedly connected to the outer end of the rotating inner rod, a plurality of side hollow groove shafts fixedly connected to the outer end of the individually sleeved hollow columns, a universal ball joint connecting block movably connected to the inner end of the side hollow groove shafts, a stirring extension inner rod fixedly connected to the end of the universal ball joint away from the individually sleeved hollow columns, an external linkage slider fixedly connected to the end of the stirring extension inner rod away from the individually sleeved hollow columns, and a plurality of arc-shaped path surface surrounding frames fixedly connected to the inner side wall of the storage top frame.

[0007] In the aforementioned plastic extruder with preheating function, the rotating inner rod is externally connected to a motor, and the multiple side hollow groove shafts are arranged in a ring.

[0008] In the aforementioned plastic extruder with preheating function, the external linkage slider located on the same plane extends to the position between the corresponding two arc-shaped path surface frames.

[0009] In the aforementioned plastic extruder with preheating function, multiple smooth auxiliary blocks are provided at one end of the corresponding two arc-shaped path surface frames that are close to each other, and the smooth auxiliary blocks are in contact with the external linkage slider.

[0010] In the aforementioned plastic extruder with preheating function, the lower end of the material storage top frame is fixedly connected to an equipment base, and the upper left and right ends of the equipment base are symmetrically fixedly connected to stable mounting seats.

[0011] In the aforementioned plastic extruder with preheating function, the upper end of the stable mounting base is threaded with the extruder body, and the end of the extruder body away from the top frame of the storage material is fixedly connected to the discharge port.

[0012] In the aforementioned plastic extruder with preheating function, the extruder body and the top storage frame are interconnected, and a controller is fixedly connected to the front end of the equipment base.

[0013] Compared with existing technologies, this preheating plastic extruder heats air through a preheating heating wire in the jacketed compartment, achieving uniform preheating of the plastic granules through heat conduction. The sealed top cover effectively reduces heat loss and improves preheating efficiency. In the stirring and efficient transmission stage, the rotating inner rod, driven by the motor, moves through a separate sleeve hollow column, side hollow groove shaft, and universal ball connecting block, causing the extended inner rod of the stirring section to perform a compound motion. This allows the plastic granules to tumble between the arc-shaped path frame, ensuring full contact between the granules and heat, improving preheating uniformity. At the same time, the smooth auxiliary block reduces the friction of the external linkage slider movement, lowering energy consumption and ensuring stable stirring and transmission. In the extrusion molding stage, the fully preheated and stirred plastic granules enter the extruder body through the connecting channel. Under the action of the screw, they are plasticized, mixed, and extruded. The controller can precisely adjust parameters such as the heating temperature of the preheating heating wire and the motor speed, ensuring a stable and efficient extrusion process that meets the diverse production requirements of plastic products. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a plastic extruder with preheating function;

[0015] Figure 2 This is a diagram of the internal structure of the top storage frame of a plastic extruder with preheating function;

[0016] Figure 3 This is an enlarged view of the material storage top frame of a plastic extruder with preheating function;

[0017] Figure 4 This is a partial enlarged view of the top frame of the material storage compartment of a plastic extruder with preheating function.

[0018] In the diagram, 1. Equipment base; 2. Stable mounting base; 3. Extruder body; 4. Discharge port; 5. Storage top frame; 6. Sealed top cover; 7. Heating jacket hopper; 8. Preheating heating wire; 9. Rotating inner rod; 10. Individual sleeve hollow column; 11. Side hollow groove shaft; 12. Universal ball joint; 13. Agitator extension inner rod; 14. External linkage slider; 15. Arc-shaped path surface surrounding frame; 16. Smooth auxiliary block; 17. Controller. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figure 1As shown in Figure 4, this plastic extruder with preheating function includes a storage top frame 5. A heating interlayer chamber 7 is provided at the inner end of the storage top frame 5. A preheating heating wire 8 is fixedly connected to the inner side wall of the heating interlayer chamber 7. A sealing top cover 6 is fixedly connected to the upper end of the storage top frame 5. A rotating inner rod 9 is fixedly connected to the lower inner wall of the storage top frame 5. Multiple individual sleeve hollow columns 10 are fixedly connected to the outer end of the rotating inner rod 9. Multiple side hollow groove shafts 11 are fixedly connected to the outer end of the individual sleeve hollow columns 10. A universal ball connecting block 12 is movably connected to the inner end of the side hollow groove shaft 11. A stirring extension inner rod 13 is fixedly connected to the end of the universal ball connecting block 12 away from the individual sleeve hollow columns 10. An external linkage slider 14 is fixedly connected to the end of the stirring extension inner rod 13 away from the individual sleeve hollow columns 10. Multiple sets of arc-shaped path surface surrounding frames 15 are fixedly connected to the inner side wall of the storage top frame 5.

[0023] The rotating inner rod 9 is externally connected to a motor, and the multiple side hollow groove shafts 11 are arranged in a ring.

[0024] The external linkage slider 14, located on the same plane, extends to the position between the corresponding two arc-shaped path surface frames 15.

[0025] Multiple smooth auxiliary blocks 16 are provided at one end of the two corresponding arc-shaped path surface frames 15 that are close to each other, and the smooth auxiliary blocks 16 are in contact with the external linkage slider 14.

[0026] The lower end of the storage top frame 5 is fixedly connected to the equipment base 1, and the upper left and right ends of the equipment base 1 are symmetrically fixedly connected to the stable mounting base 2.

[0027] The upper end of the stable mounting base 2 is threaded with an extruder body 3, and the end of the extruder body 3 away from the top frame of the material storage is fixedly connected to a discharge port 4.

[0028] The extruder body 3 and the material storage top frame 5 are interconnected, and the front end of the equipment base 1 is fixedly connected to the controller 17.

[0029] In this design, plastic granules are placed into the storage top frame 5. The storage top frame 5 is equipped with a heating jacket 7, whose inner wall is fixedly connected to a preheating heating wire 8. After the power is turned on, the wire releases heat to directly heat the air inside the heating jacket 7. Subsequently, the heat is evenly transferred to the plastic granules inside the storage top frame 5 through heat conduction. A sealing top cover 6 is installed at the upper end of the storage top frame 5 to effectively reduce heat loss and create a good preheating environment. A rotating inner rod 9, installed on the lower inner wall of the storage top frame 5, is connected to an external motor. After the motor starts, it provides continuous rotational power to the rotating inner rod 9. When the rotating inner rod 9 rotates... The multiple individual hollow cylinders 10 fixedly connected to their outer ends rotate synchronously. Multiple side hollow groove shafts 11 fixedly connected to the outer ends of each individual hollow cylinder 10 then perform circular motion. A universal ball joint 12 movably connected to the inner end of each side hollow groove shaft 11 can flexibly change its angle and is fixedly connected to the stirring extension inner rod 13, transforming the circular motion of the individual hollow cylinders 10 into a composite motion of the stirring extension inner rod 13. Multiple sets of arc-shaped path surface surrounding rings 15 are fixedly connected to the inner side wall of the storage top frame 5. An external linkage slider 14 is fixedly connected to the other end of the stirring extension inner rod 13. Extending to the two corresponding arc-shaped path surface frames 15 on the same plane, the external linkage slider 14 moves along the curved path of the arc-shaped path surface frames 15 under the drive of the rotating inner rod 9. During this process, the curved path between the two arc-shaped path surface frames 15, in conjunction with the universal ball connecting block 12 in the side hollow groove shaft 11, causes the stirring extension inner rod 13 to continuously tumble the plastic granules in multiple dimensions, ensuring that the plastic granules are in full contact with the heat emitted by the preheating heating wire 8 in the heating jacket 7, thus improving the preheating uniformity. In addition, the two arc-shaped path surface frames 15 are set close to each other at one end. Multiple smooth auxiliary blocks 16 contact each other with the external linkage slider 14, reducing the friction between them and making the displacement process of the external linkage slider 14 smoother and more efficient, reducing the energy consumption of the equipment, and ensuring the stable and continuous operation of the stirring and turning work. The plastic granules, which have been fully preheated and stirred, enter the extruder body 3 through the connecting channel between the storage top frame 5 and the extruder body 3, and are finally extruded from the discharge port 4 to form the required plastic products. The controller 17 fixedly connected to the front end of the equipment base 1 can precisely control the heating temperature of the preheating heating wire 8, the speed of the motor, and other parameters.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A plastic extruder with a preheating function, characterized in that, Including the storage top frame, the inner end of the storage top frame is provided with a heating sandwich warehouse, the inner side wall of the heating sandwich warehouse is fixedly connected with a preheating electric heating wire, the upper end of the storage top frame is fixedly connected with a sealing top cover, the lower inner wall of the storage top frame is fixedly connected with a self-rotating inner rod, the outer end of the self-rotating inner rod is fixedly connected with a plurality of single sleeve rod hollow columns, the outer end of the single sleeve rod hollow column is fixedly connected with a plurality of side hollow groove shafts, the inner end of the side hollow groove shaft is movably connected with a universal ball connecting block, the end of the universal ball connecting block away from the single sleeve rod hollow column is fixedly connected with a stirring extension inner rod, the end of the stirring extension inner rod away from the single sleeve rod hollow column is fixedly connected with an external linkage sliding block, the inner side wall of the storage top frame is fixedly connected with a plurality of groups of arc path surface surrounding frame rings.

2. The plastic extruding machine with a preheating function according to claim 1, characterized in that, The self-rotating inner rod is circumscribed with a motor, and a plurality of side hollow groove shafts are arranged in a ring shape.

3. The plastic extruding machine with a preheating function according to claim 2, characterized in that, The external linkage sliding block located in the same plane extends to the position between the corresponding two arc path surface surrounding frame rings.

4. The plastic extruding machine with a preheating function according to claim 3, characterized in that, The corresponding two arc path surface surrounding frame rings are provided with a plurality of round smooth auxiliary blocks at one end close to each other, and the round smooth auxiliary blocks are in contact with the external linkage sliding block.

5. The plastic extruding machine with a preheating function according to claim 4, characterized in that, The lower end of the storage top frame is fixedly connected with a device base, and the upper ends of the device base are fixedly connected with stable mounting seats on the left and right sides.

6. The plastic extruding machine with a preheating function according to claim 5, characterized in that, The upper end of the stable mounting seat is threadedly connected with an extruding machine body, and the end of the extruding machine body away from the storage top frame is fixedly connected with a discharge pipe.

7. The plastic extruding machine with a preheating function according to claim 6, characterized in that, The extruding machine body and the storage top frame are in communication with each other, and the front end of the device base is fixedly connected with a controller.

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