Plastic particle extruder

Abstract

The utility model relates to the technical field of plastic molding equipment, and particularly discloses a plastic particle extruder which is characterized in that a feed port is formed in the top of the front end of an extruder main body, and a support frame spans two sides of the front end of the extruder main body; two sides of the hopper are respectively fixed at the top ends of the support frames; the material receiving piece comprises a bottom plate fixedly connected to the top surface of the front end of the extruder main body and a shell, the bottom end of the shell is fixedly arranged on the bottom plate in a sleeving mode, and the shell is right opposite to the feeding opening; sliding grooves are formed in the two side walls of the shell in the horizontal direction respectively; the material passing barrel is movably arranged in the shell in the longitudinal direction, and short shafts clamped with the sliding grooves in a sliding mode are fixed to the two side walls of the material passing barrel. The top end and the bottom end of the telescopic material pipe are fixedly connected to an opening in the bottom end of the hopper and the top end of the material passing barrel correspondingly. The driving part is used for driving the material passing barrel to reciprocate back and forth in the shell; and the problem that the plastic particle extruder is easy to block during feeding is well solved.

Description

Technical Field

[0001] This utility model relates to the field of plastic molding equipment technology, specifically a plastic particle extruder. Background Technology

[0002] Plastic pellet extruders are one of the most important pieces of equipment in plastic molding and processing. Screw extruders are commonly used in this field. A screw extruder consists of a screw housed in a feed tube, a motor that drives the screw, a die head, and a feeder. During plastic pellet processing, the pellets are fed through the feeder, driven by the screw, and then extruded through the die head to form the final shape.

[0003] However, in existing screw extruders, the plastic particles are fed in by gravity, which makes them prone to clogging. Utility Model Content

[0004] The purpose of this invention is to provide a plastic particle extruder to solve the problem of clogging during the feeding process of current plastic particle extruders.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic particle extruder, comprising an extruder body, a feed inlet at the top front end of the extruder body, and a support frame spanning both sides of the front end of the extruder body; the two sides of the hopper are respectively fixed to the top of the support frame; the receiving component includes a base plate fixedly connected to the top surface of the front end of the extruder body and a housing with its bottom end fixedly fitted onto the base plate and facing the feed inlet, the two side walls of the housing are respectively provided with sliding grooves in the horizontal direction; the feed cylinder is movably disposed longitudinally within the housing, and the two side walls of the feed cylinder are fixed with short shafts that slide and engage with the sliding grooves; the top and bottom ends of the telescopic feed tube are respectively fixedly connected to the bottom opening of the hopper and the top end of the feed cylinder; the driving component is used to drive the feed cylinder to reciprocate back and forth within the housing.

[0006] Preferably, the driving component includes a frame with its bottom end fixed to the rear end of one side of the top surface of the base plate, a drive motor fixedly installed on the outer wall of the frame, a disc fixedly mounted on the power output shaft of the drive motor, and a connecting rod rotatably connected to the outer edge of the disc at its rear end, wherein the front end of the connecting rod is rotatably sleeved on the outer end of the short shaft.

[0007] Preferably, a sealing plate with its bottom surface in contact with the housing is fixedly sleeved in the middle of the feed cylinder.

[0008] Preferably, the extruder body includes a cylindrical shell extending longitudinally and integrated with a heating and melting structure, two screws disposed in the inner cavity of the cylindrical shell and rotatably sleeved at the front and rear ends of the cylindrical shell on both sides of the middle of the front and rear walls, a die head disposed in the middle of the rear wall of the cylindrical shell, and a transmission mechanism disposed at the front end of the cylindrical shell for driving the two screws to rotate synchronously in opposite directions. The feed port is disposed at the front end of the middle of the top surface of the cylindrical shell, and the bottom plate is fixedly connected to the top surface of the front end of the cylindrical shell with bolts.

[0009] Preferably, an end frame is fixedly connected to the bottom front end of the cylindrical shell, and the screws are respectively fixedly fitted with mutually meshing gears at the front end of the front wall of the cylindrical shell. An extrusion motor is fixedly installed on one side of the front wall of the end frame, and the power output shaft of the extrusion motor is fixedly connected to the front end of one of the screws.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model relates to a plastic particle extruder that feeds material into the extruder body through a hopper, a telescopic feed tube, and a feed cylinder. Since the driving component can drive the feed cylinder to move back and forth within the housing, it plays a vibration role, thereby avoiding the phenomenon of plastic particle blockage during feeding. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the main body of the extruder of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the receiving component of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the feed cylinder of this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the driving component of this utility model.

[0017] In the diagram: 1-Extruder body; 1.1-Cylindrical shell; 1.1.1-Feed inlet; 1.2-Die head; 1.3-Screw; 1.4-Gear; 1.5-End frame; 1.6-Extrusion motor;

[0018] 2-Support frame;

[0019] 3-Hopper;

[0020] 4-Receiving component; 4.1-Base plate; 4.2-Housing shell; 4.2.1-Slide groove;

[0021] 5- Feed cylinder; 5.1- Short shaft; 5.2- Sealing plate;

[0022] 6-Extendable material tube;

[0023] 7-Drive component; 7.1-Frame; 7.2-Drive motor; 7.3-Disc; 7.4-Connecting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a plastic particle extruder, including an extruder body 1. The extruder body 1 includes a longitudinally extending cylindrical shell 1.1, two screws 1.3 disposed within the inner cavity of the cylindrical shell 1.1 and rotatably sleeved at the front and rear ends of the middle portions of the front and rear walls of the cylindrical shell 1.1, a die head 1.2 disposed in the middle portion of the rear wall of the cylindrical shell 1.1, and a transmission mechanism disposed at the front end of the cylindrical shell 1.1 for driving the two screws 1.3 to rotate synchronously in opposite directions. A heating and melting structure is integrated inside the cylindrical shell 1.1 to form a twin-screw extruder. The feed inlet 1.1.1 is located at the front end of the middle portion of the top surface of the cylindrical shell 1.1. In the transmission mechanism, an end frame 1.5 is fixedly connected to the bottom front end of the cylindrical shell 1.1. The screw 1.3 passes through the front end of the front wall of the cylindrical shell 1.1 and is fixedly fitted with mutually meshing gears 1.4. An extrusion motor 1.6 is fixedly installed on one side of the front wall of the end frame 1.5. The power output shaft of the extrusion motor 1.6 is fixedly connected to the front end of one of the screws 1.3.

[0026] The support frame 2 spans both sides of the front end of the extruder body 1.

[0027] The two sides of the hopper 3 are fixed to the top of the support frame 2 respectively.

[0028] The receiving component 4 includes a base plate 4.1 fixedly connected to the top front surface of the extruder body 1, and a housing 4.2 fixedly fitted onto the base plate 4.1 at its bottom end and directly opposite the feed inlet 1.1.1. The two side walls of the housing 4.2 are respectively provided with sliding grooves 4.2.1 in the horizontal direction. The base plate 4.1 is fixedly connected to the top front surface of the cylindrical housing 1.1 by bolts.

[0029] The feed cylinder 5 is movably disposed longitudinally within the housing 4.2, and short shafts 5.1 are fixed on both sides of the feed cylinder 5 and are slidably engaged with the slide groove 4.2.1.

[0030] The top and bottom ends of the telescopic material tube 6 are fixedly connected to the bottom opening of the hopper 3 and the top of the feed cylinder 5, respectively. The telescopic material tube 6 can be a telescopic corrugated pipe.

[0031] The drive unit 7 is used to drive the feed cylinder 5 to reciprocate back and forth within the housing 4.2. The drive unit 7 includes a frame 7.1 with its bottom end fixed to the rear end of one side of the top surface of the base plate 4.1, a drive motor 7.2 fixedly installed on the outer wall of the frame 7.1, a disc 7.3 fixedly mounted on the power output shaft of the drive motor 7.2, and a connecting rod 7.4 rotatably connected to the outer edge of the disc 7.3 at its rear end. The front end of the connecting rod 7.4 is rotatably sleeved on the outer end of the short shaft 5.1.

[0032] In summary, during use, plastic particles enter the front end of the inner cavity of the cylindrical shell 1.1 from the hopper 3 via the telescopic feed tube 6 and the feed cylinder 5. The twin-screw structure, in conjunction with the integrated heating and melting structure within the cylindrical shell 1.1, completes the extrusion molding. During the feeding process, the drive motor 7.2 rotates the disc 7.3. The rotating disc 7.3, through the connecting rod 7.4, drives the short shaft 5.1 to slide back and forth within the groove 4.2.1, thereby creating an oscillating effect within the shell 4.2 of the feed cylinder 5. This ensures smooth feeding of the plastic particles and prevents clogging.

[0033] To prevent the inner cavity of the housing 4.2 from being exposed when the feed cylinder 5 moves back and forth within the housing 4.2, thus avoiding the problem of foreign objects easily falling into the housing 4.2 through the opening, a sealing plate 5.2 with its bottom surface in contact with the housing 4.2 is fixedly sleeved in the middle of the feed cylinder 5. This ensures that the sealing plate 5.2 always fully covers the opening of the housing 4.2 when the feed cylinder 5 moves back and forth within the housing 4.2.

[0034] It should be noted that in this article, relational terms such as first and second are only used to refer to...

[0035] Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic pellet extruder, comprising an extruder body (1), wherein the extruder body (1) has a feed inlet at its front end top. 1.1.1), characterized in that, Also includes: Support frame (2), the support frame (2) spans across both sides of the front end of the extruder body (1); The hopper (3) is fixed to the top of the support frame (2) on both sides. The receiving component (4) includes a base plate (4.1) fixedly connected to the top surface of the front end of the extruder body (1) and a housing (4.2) whose bottom end is fixedly fitted on the base plate (4.1) and is directly opposite the feed inlet (1.1.1). The two side walls of the housing (4.2) are respectively provided with sliding grooves (4.2.1) in the horizontal direction. The feed cylinder (5) is movably disposed in the housing (4.2) along the longitudinal direction. The two side walls of the feed cylinder (5) are fixed with short shafts (5.1) that are slidably engaged with the slide groove (4.2.1). The top and bottom ends of the telescopic material tube (6) are respectively fixedly connected to the bottom opening of the hopper (3) and the top of the feed cylinder (5); A drive unit (7) is used to drive the feed cylinder (5) to reciprocate back and forth within the housing (4.2).

2. The plastic particle extruder according to claim 1, characterized in that: The drive unit (7) includes a frame (7.1) with its bottom end fixed to the rear end of one side of the top surface of the base plate (4.1), a drive motor (7.2) fixedly installed on the outer wall of the frame (7.1), a disc (7.3) fixedly mounted on the power output shaft of the drive motor (7.2), and a connecting rod (7.4) rotatably connected to the outer edge of the disc (7.3) at its rear end. The front end of the connecting rod (7.4) is rotatably sleeved on the outer end of the short shaft (5.1).

3. A plastic particle extruder according to claim 1, characterized in that: A sealing plate (5.2) with its bottom surface in contact with the housing (4.2) is fixedly sleeved in the middle of the feed cylinder (5).

4. A plastic particle extruder according to claim 1, characterized in that: The extruder body (1) includes a cylindrical shell (1.1) extending longitudinally and integrated with a heating and melting structure, two screws (1.3) located in the inner cavity of the cylindrical shell (1.1) and rotatably sleeved at the front and rear ends of the cylindrical shell (1.1) on both sides of the middle of the front and rear walls, a die head (1.2) located in the middle of the rear wall of the cylindrical shell (1.1), and a transmission mechanism located at the front end of the cylindrical shell (1.1) for driving the two screws (1.3) to rotate synchronously in opposite directions. The feed port (1.1.1) is located at the front end of the middle of the top surface of the cylindrical shell (1.1), and the bottom plate (4.1) is fixedly connected to the top surface of the front end of the cylindrical shell (1.1) by bolts.

5. A plastic particle extruder according to claim 4, characterized in that: An end frame (1.5) is fixedly connected to the bottom of the front end of the cylindrical shell (1.1). The screw (1.3) passes through the front end of the front wall of the cylindrical shell (1.1) and is fixedly fitted with mutually meshing gears (1.4). An extrusion motor (1.6) is fixedly installed on one side of the front wall of the end frame (1.5). The power output shaft of the extrusion motor (1.6) is fixedly connected to the front end of one of the screws (1.3).

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