Anti-solidification plastic extruder

Abstract

The utility model relates to the technical field of plastic processing equipment, in particular to an anti-solidification plastic extruder. The stirring device comprises a feeding hopper, a stirring motor, a linkage rod, a movable part, a fixed shell, a bulge, a stirring rod and a stirring paddle, the feeding hopper is used for containing plastic raw materials, the stirring motor is located above the feeding hopper through a door-shaped frame, the linkage rod is coaxially and fixedly connected to the output end of the stirring motor, the linkage rod is sleeved with the movable part, a protrusion is arranged on the side face of the movable part, the fixed shell is arranged around the outer surface of the movable part, and a continuously-fluctuating arc sliding rail is arranged on the inner wall of the fixed shell. The top of the stirring rod is fixedly connected with the bottom of the movable part, and when the stirring motor drives the linkage rod to rotate, the stirring paddles are arranged on a rod body of the stirring rod in pairs; according to the utility model, through the compound motion of the stirring motor and the stirring rod, the stirring rod can guide the movable part to do up-and-down reciprocating motion due to the arc sliding rail, so that plastic raw materials are mixed more uniformly in the whole extrusion process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic processing equipment, especially to a solidification prevention plastic extruder. BACKGROUND

[0002] A plastic extruder is a device used to convert plastic raw materials (such as granules or powders) into continuous profiles or products with specific shapes through heating and extrusion. It is one of the commonly used devices in the plastic processing industry and is widely used in the production of various plastic products, such as pipes, films, sheets, plastic rods, and special-shaped materials. Plastic granules or other forms of plastic raw materials enter the screw zone of the extruder from the feed inlet. The plastic raw materials are pushed forward under the rotating action of the screw and are heated to a molten state through the heating zone. The heating temperature is usually controlled by multiple heating zones to ensure that the plastic reaches the required melting temperature. The molten plastic is pushed by the screw, and the outlet part (die) of the extruder is shaped according to the required product shape. The plastic is extruded through the die to form the required profile or other products. The shaped plastic is cooled in the cooling zone, usually through water bath or air cooling, to solidify it into the required finished product.

[0003] However, the existing technical equipment often encounters the following problems in use:

[0004] In the traditional plastic extrusion process, when the plastic raw materials are poured into the extruder, they are prone to solidification due to temperature fluctuations and poor flowability due to their own viscosity, resulting in poor extrusion effect. Especially in winter workshop environments with low temperatures, plastic is more likely to become viscous or hardened, affecting production efficiency. To prevent solidification, a stirring rod is usually provided in the feed hopper of the extruder, but the stirring method of the traditional stirring rod is single, although it increases the flowability, it does not increase the discharging efficiency, and partial material caking phenomenon still occurs. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a solidification prevention plastic extruder to effectively solve the problem of solidification of plastic raw materials in the traditional plastic extrusion process. The plastic raw materials are prone to solidification due to temperature fluctuations and poor flowability due to their own viscosity, resulting in poor extrusion effect. Especially in winter workshop environments with low temperatures, plastic is more likely to become viscous or hardened, affecting production efficiency. To prevent solidification, a stirring rod is usually provided in the feed hopper of the extruder, but the stirring method of the traditional stirring rod is single, although it increases the flowability, it does not increase the discharging efficiency, and partial material caking phenomenon still occurs. Through the composite motion of the stirring motor and the stirring rod, the stirring rod will move up and down reciprocally under the guidance of the arc sliding rail moving part, making the mixing of plastic raw materials more uniform during the entire extrusion process.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] A solidification-preventing plastic extruder comprises:

[0008] A feeding hopper for containing plastic raw materials;

[0009] A stirring motor located above the feeding hopper through a portal frame;

[0010] A linkage rod coaxially fixedly connected to the output end of the stirring motor;

[0011] A movable element sleeved on the linkage rod, the movable element being provided with a protrusion on the side surface;

[0012] A fixed shell arranged around the outer surface of the movable element, the inner wall of the fixed shell being provided with a continuous undulating arc-shaped slide rail;

[0013] The protrusion and the arc-shaped slide rail are in sliding fit;

[0014] A stirring rod, the top of the stirring rod being fixedly connected to the bottom of the movable element, the bottom of the stirring rod extending to the discharge port of the feeding hopper, when the linkage rod is rotated by the stirring motor, the protrusion of the movable element undulates and slides along the arc-shaped slide rail, so that the stirring rod is synchronously subjected to axial rotation and up-and-down reciprocating motion;

[0015] A pair of stirring paddles arranged on the rod body of the stirring rod.

[0016] Further comprising:

[0017] An extruder installed below the feeding hopper, the bottom end of the extruder being in communication with the top of the extruder;

[0018] A rack installed below the extruder;

[0019] Two support plates, the two support plates being respectively located on the two sides of the extruder, the support plates being installed on the rack;

[0020] The two ends of the portal frame are arranged on the top surface of the support plates, and the portal frame is fixedly connected to the top surface of the support plates.

[0021] The undulating wave shape of the arc-shaped slide rail is a continuous wave shape, and the undulating height is 5-15 mm.

[0022] The stirring paddles are of a sheet structure, the cross section of the stirring paddles is of an outer shape that is wide at the top and narrow at the bottom, and the surface of the stirring paddles is provided with an anti-sticking coating.

[0023] The top of the fixed shell is fixedly connected to the portal frame.

[0024] The stirring motor is installed on the door-shaped frame, and an output end of the stirring motor is arranged through the door-shaped frame.

[0025] The top of the stirring rod is arranged through the fixed shell.

[0026] Compared with the prior art, the utility model has the advantages that: the utility model discloses a composite motion of the stirring motor and the stirring rod, the stirring rod reciprocates up and down under the guidance of the arc slide rail, so that the plastic raw materials are mixed more uniformly in the whole extrusion process. The axial rotation and the up-and-down reciprocating motion provided by the stirring system ensure that different materials are fully mixed during processing, and the stirring rod pushes the raw materials to flow downward due to longitudinal displacement, which not only improves the discharging rate, but also improves the uniformity of the raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the specific embodiments of the utility model, and do not constitute the limitation to the utility model.

[0028] Figure 1 It is the whole appearance schematic view of the utility model.

[0029] Figure 2 It is the front cross section schematic view of the utility model.

[0030] Figure 3 It is Figure 2 It is the enlarged view of A.

[0031] Reference numerals in the drawing: 1, feeding hopper; 2, stirring motor; 3, linkage rod; 4, movable part; 5, fixed shell; 51, arc slide rail; 6, protrusion; 7, stirring rod; 8, stirring paddle; 9, extruder; 10, rack; 11, support plate; 12, door-shaped frame. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] In the description of the utility model, it is still necessary to point out that, unless there is definite stipulation and limitation, the terms "arrange", "arrange", "connect", "connect" should be understood in broad sense, for example, it can be fixed connection, also can be dismounts connection, or integrally connects, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through the medium, can be the communication inside two elements, for the ordinary skilled in the art, according to the specific circumstances, the specific meaning of the above-mentioned terms in the utility model is understood.

[0034] As Figures 1-3 The utility model provides a kind of anti-solidification plastic extruder, the anti-solidification plastic extruder includes feed hopper 1, stirring motor 2, linkage rod 3, movable piece 4, fixed shell 5, protrusion 6, stirring rod 7 and stirring pulp 8.

[0035] Feed hopper 1 is used to accommodate plastic raw materials, and feed hopper 1 is the raw material storage area of the entire extruder 9, and its design is mainly to ensure that the plastic raw materials can enter the stirring area uniformly and orderly, to provide stable raw material supply for the subsequent extrusion process. Its capacity and shape should be able to accommodate a certain amount of plastic raw materials, and provide a good space for the operation of the stirring motor 2. The stirring motor 2 is located above the feed hopper 1 by the door frame 12, and the stirring motor 2 is the core component of the driving stirring rod 7 and stirring pulp 8, and the door frame 12 provides support and fixation for the motor. The door frame 12 is designed to effectively connect the motor and the output end of the stirring motor 2, to ensure that the motor can drive the stirring system to work when rotating.

[0036] In the utility model, the linkage rod 3 is coaxially fixedly connected to the output end of the stirring motor 2, the movable piece 4 is sleeved on the linkage rod 3, the movable piece 4 is provided with the protrusion 6 on the side surface, the fixed shell 5 is arranged around the outer surface of the movable piece 4, the inner wall of the fixed shell 5 is provided with a continuous undulating arc-shaped slide rail 51, and the top of the fixed shell 5 is fixedly connected with the door frame 12; The protrusion 6 is in sliding fit with the arc-shaped slide rail 51; The undulating waveform of the arc-shaped slide rail 51 is a continuous wave shape, and the undulating height is 5-15 mm. The fixed shell 5 is used to surround and carry the movable piece 4 and maintain the stability of the stirring system, and the support plate 11 provides support for the entire extrusion system, to ensure the stability of each component during operation.

[0037] In the utility model, the linkage rod 3 and the movable piece 4 function to transmit the power of the stirring motor 2, and through the sliding fit of the protrusion 6 and the arc-shaped slide rail 51, the stirring rod 7 produces axial rotation and up-and-down reciprocating motion. This design aims to improve the stirring effect through compound motion, to improve the flowability of plastic raw materials and prevent solidification. The undulating waveform design of the arc-shaped slide rail 51 enables the movable piece 4 to produce repeated displacement up and down when sliding thereon, to further drive the stirring rod 7 to produce axial rotation and reciprocating motion. The purpose of this design is to increase the uniformity of stirring, and effectively prevent the solidification of plastic raw materials.

[0038] The utility model discloses, stirring rod 7 top and movable element 4 bottom fixed connection, stirring rod 7 bottom extends to the blanking of feed hopper 1, when stirring motor 2 drive linkage link 3 rotation, the convex 6 of movable element 4 along the cambered slide rail 51 heave sliding, make stirring rod 7 synchronous generation axial rotation and up and down reciprocating motion, stirring paddle 8 is the sheet type structure, and the cross section of stirring paddle 8 is the appearance of wide on the top of feed hopper 1 narrow down, and its surface is equipped with anti -sticky coating, and stirring paddle 8 is set up in the pole body of stirring rod 7 in pairs, and stirring motor 2 is installed on door type frame 12, and the output of stirring motor 2 is arranged in door type frame 12, and the top of stirring rod 7 is arranged in fixed shell 5. The design of stirring rod 7 and stirring paddle 8 is one of core components, and the sheet type structure of stirring paddle 8 and the cross section design of adapting the shape of feed hopper 1 help to improve the stirring effect. The design of coating anti -sticky coating is to reduce the possibility of raw materials adhering on stirring paddle 8, and maintains the stirring efficiency.

[0039] The utility model discloses, extruder 9 is installed below feed hopper 1, and the bottom of extruder 9 is communicated with the top of extruder 9, and rack 10 is installed below extruder 9, and support plate 11 is provided with two, and two support plates 11 are located at the both sides of extruder 9 respectively, and support plate 11 is installed on rack 10, and the both ends of door type frame 12 are arranged on the top surface of support plate 11, and door type frame 12 is fixedly connected with the top surface of support plate 11. Extruder 9 is used for extruding the plastic raw material after stirring, to ensure that the raw material can flow out smoothly and carry out next step processing. It is located below feed hopper 1, and the bottom is communicated with the feed inlet, plays the key material conveying effect.

[0040] It needs to be explained that the utility model discloses a kind of anti-solidification plastic extruders, when using, plastic raw material is poured into feed hopper 1, starting stirring motor 2, the rotation of stirring motor 2 output end on the top of feed hopper 1 sand, stirring motor 2 output end rotation drives stirring rod 7, stirring rod 7 axial rotation drives stirring paddle 8 to stir plastic raw material, promote raw material fluidity, so that it is not easy to solidify due to temperature difference. During stirring process, linkage link 3 installed on the output end of stirring motor 2 will be axially rotated to drive movable element 4 on it, and the convex 6 of movable element 4 side wheel surface will slide in the cambered slide rail 51 of fixed shell 5 inner wall due to the rotation of movable element 4, because cambered slide rail 51 has heave, so movable element 4 will also repeatedly displace up and down when rotating, and the displacement of movable element 4 will further drive stirring rod 7 axially rotated and repeatedly displaced up and down, which is fixedly connected with the bottom of movable element 4, and the plastic raw material in extruder 9 feed hopper 1 will promote the conveying efficiency of raw material due to the up and down reciprocating motion of stirring paddle 8.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that the application is not limited to the above-mentioned embodiments and various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-coagulation plastic extruder, characterized in that, include: Feed hopper (1), the feed hopper (1) is used to contain plastic raw materials; A stirring motor (2) is located above the feed hopper (1) via a portal frame (12); Linkage rod (3), which is coaxially fixedly connected to the output end of stirring motor (2); Movable component (4), which is sleeved on the linkage rod (3), and the movable component (4) has a protrusion (6) on its side; A fixed shell (5) is provided around the outer surface of the movable part (4), and the inner wall of the fixed shell (5) is provided with a continuously undulating arc slide rail (51). The protrusion (6) slides in conjunction with the arc-shaped slide rail (51); The stirring rod (7) is fixedly connected to the bottom of the movable part (4) at its top. The bottom of the stirring rod (7) extends to the discharge port of the feed hopper (1). When the stirring motor (2) drives the linkage rod (3) to rotate, the protrusion (6) of the movable part (4) slides along the arc slide rail (51) to make the stirring rod (7) generate axial rotation and up-down reciprocating motion synchronously. A stirring paddle (8) is provided in pairs on the shaft of the stirring rod (7).

2. The anti-coagulation plastic extruder according to claim 1, characterized in that, Also includes: An extruder (9) is installed below the feed hopper (1), and the bottom end of the extruder (9) is connected to the top end of the extruder (9). A frame (10) is mounted below the extruder (9); Support plate (11), two support plates (11) are provided, the two support plates (11) are respectively located on both sides of the extruder (9), and the support plates (11) are installed on the frame (10); The two ends of the gantry frame (12) are disposed on the top surface of the support plate (11), and the gantry frame (12) is fixedly connected to the top surface of the support plate (11).

3. The anti-coagulation plastic extruder according to claim 1, characterized in that, The undulating waveform of the arc slide rail (51) is a continuous wave shape with an undulation height of 5-15mm.

4. The anti-coagulation plastic extruder according to claim 1, characterized in that, The stirring paddle (8) has a sheet structure, and the cross-section of the stirring paddle (8) is designed to fit the shape of the feed hopper (1), which is wider at the top and narrower at the bottom. Its surface is provided with an anti-stick coating.

5. The anti-coagulation plastic extruder according to claim 1, characterized in that, The top of the fixed shell (5) is fixedly connected to the gantry frame (12).

6. The anti-coagulation plastic extruder according to claim 1, characterized in that, The stirring motor (2) is mounted on the portal frame (12), and the output end of the stirring motor (2) passes through the portal frame (12).

7. The anti-coagulation plastic extruder according to claim 1, characterized in that, The top of the stirring rod (7) passes through the fixed shell (5).

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