Extruder for preparing polystyrene master batch and capable of assisting extrusion and pushing feeding

Abstract

The utility model relates to the technical field of plastic extruders, in particular to a polystyrene master batch preparation extruder capable of assisting in extruding and pushing feeding, which comprises a base, a screw extruder arranged at the top of the base, a feeding frame communicated with the top of the screw extruder, and a quantity control frame arranged inside the feeding frame. A quantitative discharging assembly is arranged in the quantity control frame, a collecting frame is arranged on one side of the base, a heat dissipation assembly used for conducting heat dissipation on plastic particles is arranged in the collecting frame, a plugging cover is far away from a feeding pipe, and at the moment, materials in the quantity control frame can fall into a feeding frame from a discharging pipe; the material in the quantity control frame falls off from the feeding frame to the inside of the screw extruder for the next step, when the plugging cover coincides with the discharging pipe, the material in the quantity control frame does not fall off, and a part of the material in the quantity control frame can fall off at intervals by rotating the plugging cover all the time. Therefore, the materials entering the screw extruder are controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic extruders, in particular to an extruder for preparing polystyrene master batches with auxiliary extrusion and feeding. Background Art

[0002] Single screw extruder is mainly used to extrude soft and hard polyvinyl chloride, polyethylene and other thermoplastic plastics. It can process a variety of plastic products, such as film blowing, tube extrusion, platen, ribbon drawing, etc. It can also be used for melt granulation. The plastic extruder has advanced design, high quality, good plasticization, low energy consumption, and adopts involute gear transmission. It has the characteristics of low noise, stable operation, large load capacity and long life.

[0003] Chinese patent authorization announcement number CN217047408U discloses a material pressing structure of a single screw extruder, including a single screw extruder body and a hopper, the single screw extruder body is connected and fixed with a hopper, the hopper is equipped with a material pressing mechanism, the material pressing mechanism includes a connecting shell and two material pressing plates, both sides of the material pressing plates are in contact with the inner wall of the hopper. In the utility model, by providing a material pressing mechanism on the hopper, and by starting the motor, the motor output end is used to drive the gear 2 to rotate, and the gear 2 is meshed with the gear 1 at the corresponding position, so that the gear 1, the round rod and the slider are rotated, and then the two material pressing plates are rotated, and the rotating material pressing plates are used to squeeze and push the plastic particles inside the hopper, thereby avoiding the blockage of the plastic particles inside the hopper, and improving the use effect of the material pressing structure of the single screw extruder.

[0004] The above device puts the plastic into the hopper and then performs subsequent work, but the feeding amount of the plastic cannot be controlled when adding the plastic, resulting in the plastic not being able to enter the extruder evenly, which will cause differences in the quality of the products produced and is not conducive to current use. Utility Model Content

[0005] In view of the above problems, an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding is provided. By keeping the sealing cover away from the discharge pipe, the material inside the quantity control frame will fall from the discharge pipe to the inside of the feed frame, and then fall from the feed frame to the inside of the screw extruder for the next step. When the sealing cover coincides with the discharge pipe, the material inside the quantity control frame will not fall. By continuously rotating the sealing cover, a portion of the material inside the quantity control frame will fall at regular intervals, thereby controlling the material entering the screw extruder.

[0006] To solve the problems of the prior art, the utility model provides an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding, which includes a base. A screw extruder is arranged on the top of the base. The top of the screw extruder is communicated with a feeding frame. A metering frame is arranged inside the feeding frame. A quantitative discharging component is arranged inside the metering frame. A collecting frame is arranged on one side of the base. A heat dissipation component for dissipating heat of plastic particles is arranged inside the collecting frame.

[0007] Preferably, the quantitative discharging component includes a first mixing rod rotatably arranged inside the metering frame. The bottom of the first mixing rod extends into the feeding frame and is provided with a second bevel gear. A discharging pipe is also communicated inside the metering frame. A connecting block is arranged outside the first mixing rod. A sealing cover for sealing the discharging pipe is arranged on one side of the connecting block.

[0008] Preferably, flow guiding plates for guiding plastic particles are symmetrically arranged inside the metering frame.

[0009] Preferably, a motor is arranged on the side wall of the feeding frame. The output shaft of the motor is provided with a second mixing rod through a coupling. One end of the second mixing rod is rotatably connected with the side wall of the feeding frame. A first bevel gear meshed with the second bevel gear is arranged outside the second mixing rod.

[0010] Preferably, the heat dissipation component includes a heat dissipation fan arranged inside the collecting frame. A breathable plate for collecting plastic particles is arranged inside the collecting frame.

[0011] Preferably, a plurality of air inlet holes for the heat dissipation fan to intake air are opened on both sides of the collecting frame.

[0012] The beneficial effect of the utility model compared with the prior art is that when the sealing cover is away from the discharging pipe, the materials inside the metering frame will fall from the discharging pipe into the feeding frame and then fall into the screw extruder for the next step of work. When the sealing cover coincides with the discharging pipe, the materials inside the metering frame will not fall. By continuously rotating the sealing cover, a part of the materials inside the metering frame will fall every once in a while, so as to control the materials entering the screw extruder.

[0013] The motor drives the second mixing rod to rotate, and the second mixing rod is used to prevent the materials inside the feeding frame from being blocked during discharging. At the same time, the first bevel gear outside the second mixing rod will also rotate, further driving the second bevel gear to rotate, and then driving the first mixing rod to rotate through the second bevel gear to prevent the materials inside the metering frame from being blocked. Description of the Drawings

[0014] Figure 1It is a schematic diagram of the overall structure of an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding

[0015] Figure 2 It is a schematic diagram of the structure of the feeding frame in an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding

[0016] Figure 3 It is a schematic diagram of the internal structure of the feeding frame in an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding

[0017] Figure 4 It is a schematic diagram of the internal structure of the metering frame in an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding

[0018] Figure 5 It is a schematic diagram of the structure of the connecting block and the plugging block in an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding

[0019] Figure 6 It is a schematic diagram of the structure of the heat dissipation component in an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding

[0020] The reference numerals in the figure are: 1, base; 2, feeding frame; 3, metering frame; 4, motor; 5, collection frame; 6, first mixing rod; 7, second mixing rod; 8, first bevel gear; 9, second bevel gear; 10, deflector; 11, discharge pipe; 12, connecting block; 13, plugging cover; 14, air-permeable plate; 15, cooling fan; 16, screw extruder Detailed implementation mode

[0021] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation modes

[0022] As Figures 1 to 6 shown, the present invention provides an extruder for preparing polystyrene masterbatch with auxiliary extrusion and feeding, including a base 1, on the top of the base 1 is provided a screw extruder 16, the top of the screw extruder 16 is communicated with a feeding frame 2, inside the feeding frame 2 is provided a metering frame 3, inside the metering frame 3 is provided a quantitative discharging component, on one side of the base 1 is provided a collection frame 5, and inside the collection frame 5 is provided a heat dissipation component for dissipating heat from plastic particles

[0023] The material entering the inside of the screw extruder 16 can be extruded through the feeding frame 2 to prevent the material from being blocked when entering the inside of the screw extruder 16. Then, the metering component inside the metering frame 3 can control the material entering the inside of the screw extruder 16 to prevent too much or too little material from entering the inside of the screw extruder 16, thus causing differences in the quality of the produced products.

[0024] As Figure 3 and Figure 4 shown, the quantitative discharging component includes a first mixing rod 6 rotatably arranged inside the metering frame 3. The bottom of the first mixing rod 6 extends into the feeding frame 2 and is provided with a second bevel gear 9. A discharge pipe 11 is also communicated inside the metering frame 3. A connecting block 12 is arranged outside the first mixing rod 6, and a sealing cover 13 for blocking the discharge pipe 11 is arranged on one side of the connecting block 12.

[0025] When the sealing cover 13 is away from the discharge pipe 11, the material inside the metering frame 3 will fall from the discharge pipe 11 into the feeding frame 2, and then fall from the feeding frame 2 into the screw extruder 16 for the next step of work. When the sealing cover 13 coincides with the discharge pipe 11, the material inside the metering frame 3 will not fall. The continuously moving sealing cover 13 can make a part of the material inside the metering frame 3 fall every once in a while, so as to control the material entering the inside of the screw extruder 16.

[0026] As Figure 4 shown, guide plates 10 for guiding plastic particles are symmetrically arranged inside the metering frame 3.

[0027] The guide plates 10 can correctly guide the material inside the metering frame 3 into the discharge pipe 11, thus facilitating the material to enter the screw extruder 16 and facilitating the next step of work.

[0028] As Figure 3 and Figure 4 shown, a motor 4 is arranged on the side wall of the feeding frame 2. The output shaft of the motor 4 is provided with a second mixing rod 7 through a coupling. One end of the second mixing rod 7 is rotatably connected to the side wall of the feeding frame 2. A first bevel gear 8 meshing with the second bevel gear 9 is arranged outside the second mixing rod 7.

[0029] The second mixing rod 7 is used to prevent the material inside the feeding frame 2 from being blocked during discharging. At the same time, the first bevel gear 8 outside the second mixing rod 7 will also rotate, further driving the second bevel gear 9 to rotate.

[0030] As Figure 6As shown, the heat dissipation component includes a heat dissipation fan 15 disposed inside the collection box 5, and a ventilation plate 14 for collecting plastic particles is disposed inside the collection box 5.

[0031] The heat dissipation fan 15 can dissipate heat from the newly produced material to prevent the newly produced material from sticking together.

[0032] As Figure 6 shown, a plurality of air inlet holes for the heat dissipation fan 15 to intake air are formed on both sides of the collection box 5.

[0033] The air inlet holes enable the heat dissipation fan 15 to work stably for a long time.

[0034] Working principle: When plastic particles need to be extruded, first place the plastic particles into the metering box 3. Then start the motor 4 to drive the second mixing rod 7 to rotate, using the second mixing rod 7 to prevent the material in the feeding frame 2 from being blocked during discharging. At the same time, the first bevel gear 8 outside the second mixing rod 7 will also rotate, further driving the second bevel gear 9 to rotate. Then, drive the first mixing rod 6 to rotate through the second bevel gear 9 to prevent the material in the metering box 3 from being blocked. When the first mixing rod 6 rotates, it can also drive the connecting block 12 and the sealing cover 13 to rotate. When the sealing cover 13 moves away from the discharge pipe 11, the material in the metering box 3 will fall from the discharge pipe 11 into the feeding frame 2, and then fall from the feeding frame 2 into the internal of the screw extruder 16 for the next step of work. When the sealing cover 13 coincides with the discharge pipe 11, the material in the metering box 3 will not fall. Through the continuously moving sealing cover 13, a part of the material in the metering box 3 will fall every once in a while, so as to control the material entering the internal of the screw extruder 16.

[0035] The above embodiments only represent one or several implementation manners of the extruder for preparing polystyrene masterbatch with auxiliary extrusion and pushing feeding of the present utility model, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

[0036] In the present utility model, unless otherwise clearly defined and limited, for example, it can be fixedly connected, can also be detachably connected, or integrated; it can be mechanically connected, can also be electrically connected; it can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An extruder for preparing polystyrene masterbatch with auxiliary extrusion and pushing feeding, characterized in that: The invention comprises a base (1), a screw extruder (16) is arranged on the top of the base (1), the top of the screw extruder (16) is connected to a feed frame (2), a quantity control frame (3) is arranged inside the feed frame (2), a quantitative discharge component is arranged inside the quantity control frame (3), a collecting frame (5) is arranged on one side of the base (1), and a heat dissipation component for dissipating heat from plastic particles is arranged inside the collecting frame (5).

2. The extruder for preparing polystyrene masterbatch with auxiliary extrusion push feeding according to claim 1, characterized in that: The quantitative discharging assembly comprises a first mixing rod (6) rotatably arranged inside a quantity control frame (3); the bottom of the first mixing rod (6) extends to the inside of the feed frame (2) and is provided with a second bevel gear (9); the inside of the quantity control frame (3) is also connected to a discharging pipe (11); a connecting block (12) is arranged outside the first mixing rod (6); and a blocking cover (13) for blocking the discharging pipe (11) is arranged on one side of the connecting block (12).

3. The extruder for preparing polystyrene masterbatch with auxiliary extrusion push feeding according to claim 1, characterized in that: A flow guide plate (10) for guiding the plastic particles is symmetrically arranged inside the quantity control frame (3).

4. The extruder for preparing polystyrene masterbatch with auxiliary extrusion pushing feeding according to claim 2, characterized in that: A motor (4) is arranged on the side wall of the feed frame (2); a second mixing rod (7) is arranged on the output shaft of the motor (4) via a coupling; one end of the second mixing rod (7) is rotatably connected to the side wall of the feed frame (2); and a first bevel gear (8) meshingly connected to a second bevel gear (9) is arranged on the outside of the second mixing rod (7).

5. The extruder for preparing polystyrene masterbatch with auxiliary extrusion push feeding according to claim 1, characterized in that: The heat dissipation component comprises a heat dissipation fan (15) arranged inside the collection frame (5), and a breathable plate (14) for collecting plastic particles is arranged inside the collection frame (5).

6. The extruder for preparing polystyrene masterbatch with auxiliary extrusion push feeding according to claim 5, characterized in that: Both sides of the collection frame (5) are provided with a plurality of air inlet holes for the cooling fan (15) to take in air.

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