Plastic extruder with preheating function

Abstract

The utility model relates to the technical field of plastic extruders, and discloses a plastic extruder with a preheating function, which comprises a device base and a charging barrel, a device main body is arranged on the device base, the charging barrel is connected onto the device main body through a connecting pipe, a first transmission case is arranged at the top of the charging barrel, and a servo motor is arranged at the top of the first transmission case. A servo motor can drive a first bevel gear and a rotating shaft at the bottom of the first bevel gear to rotate, through mutual cooperation of the first bevel gear, a second bevel gear and a third bevel gear, a sleeve rod rotates outside the rotating shaft in the opposite direction, and a fourth bevel gear at the bottom of the rotating shaft drives two fifth bevel gears in a second transmission cavity to rotate; furthermore, the sleeve rod drives two stirring scraping rods on the second transmission box to rotate in the material cavity, and meanwhile, the two stirring scraping rods rotate, so that the raw materials in the material barrel are stirred and turned at the same time, and the raw materials can be uniformly preheated through the arrangement of electric heating rods on the two stirring scraping rods.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic extruder, concretely to a plastic extruder with preheating function. BACKGROUND

[0002] The main structure of the plastic extruder is an extruder, and the plastic extruder is mainly composed of an extrusion system, a transmission system and a heating and cooling system. In terms of category, the plastic extruder is divided into a single-screw extruder, a double-screw extruder and a multi-screw extruder.

[0003] At present, the plastic extruder is very common in the plastic processing industry, but the plastic extruder does not have a preheating function. After the raw material enters the inside of the extruder, it needs to be heated to a molten state, thereby reducing the working efficiency of the extruder to a certain extent. Moreover, the raw material is heated by being placed in the barrel, and the plastic on the inside is difficult to heat, thereby causing low preheating efficiency and uneven preheating, which affects the subsequent processing efficiency and quality. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a plastic extruder with preheating function, which solves the above technical problems.

[0006] (II) Technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a plastic extruder with preheating function, including device base and barrel, the device base is provided with device main body, the barrel is connected on the device main body through the connecting pipe, the top of the barrel is provided with the first transmission box, the top of the first transmission box is provided with the servo motor, the first transmission cavity is opened in the first transmission box, the action output shaft of the servo motor extends to the first transmission cavity and is equipped with the first bevel gear, the second bevel gear meshing with the first bevel gear is rotatably installed in the first transmission cavity, the bottom of the first bevel gear is connected with the rotating shaft, the rotating shaft is rotatably installed with the sleeve rod outside, the top of the sleeve rod is provided with the third bevel gear meshing with the second bevel gear, the bottom of the sleeve rod is connected with the second transmission box, the second transmission cavity is opened in the second transmission box, the bottom end of the rotating shaft extends to the second transmission cavity and is connected with the fourth bevel gear, two fifth bevel gears meshing with the fourth bevel gear are rotatably installed in the second transmission cavity, the connecting rod is connected with the connecting rod at the end away from each other, the stirring scraper is arranged on the connecting rod, and two electric heating rods are arranged on the stirring scraper along the horizontal direction.

[0008] Preferably, the barrel is provided with a material cavity, and the top of the barrel is provided with a material inlet communicated with the material cavity.

[0009] Preferably, the stirring scraper rod is welded by two mutually symmetrical inclined scraper rods.

[0010] Preferably, the inclination of the two inclined scraper rods on the stirring scraper rod is matched with the inclination of the slope of the bottom of the material cavity.

[0011] Preferably, a plurality of stirring rods are arranged on the sleeve rod in the circumferential direction, and the stirring rods are arranged in an inclined manner.

[0012] Preferably, the connecting rod and the second transmission box are connected through a bearing.

[0013] Preferably, the two fifth bevel gears are symmetrically arranged in the second transmission cavity.

[0014] Compared with the prior art, the plastic extruder with preheating function has the following beneficial effects:

[0015] 1、The mutual cooperation of the servo motor, the stirring scraper rod and the electric heating rod and other structures is arranged, so that the servo motor drives the rotation of the first bevel gear and the rotating shaft at the bottom of the first bevel gear, the mutual cooperation of the first bevel gear, the second bevel gear and the third bevel gear enables the sleeve rod to rotate in the opposite direction outside the rotating shaft, and the fourth bevel gear at the bottom of the rotating shaft drives the rotation of the two fifth bevel gears in the second transmission cavity, so that the sleeve rod drives the rotation of the two stirring scraper rods on the second transmission box in the material cavity, and the two stirring scraper rods rotate at the same time, the material in the barrel is stirred and turned over at the same time, and the electric heating rods on the two stirring scraper rods can uniformly preheat the material. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the main structure of the utility model;

[0017] Figure 2 It is a schematic view of the side view of the stirring scraper rod, the second transmission box and the first transmission box and other structures of the utility model;

[0018] Figure 3 It is a schematic view of the Figure 2 It is an enlarged schematic view of the structure at A in the utility model;

[0019] Figure 4 It is a sectional view of the fourth bevel gear, the third bevel gear and the first bevel gear and other structures of the utility model.

[0020] Wherein: 1, device base; 2, device main body; 3, connecting pipe; 4, barrel; 5, inlet; 6, first transmission box; 7, servo motor; 8, first bevel gear; 9, second bevel gear; 10, third bevel gear; 11, first transmission cavity; 12, rotating shaft; 13, stirring rod; 14, sleeve rod; 15, material cavity; 16, connecting rod; 17, stirring scraper; 18, electric heating rod; 19, second transmission box; 20, second transmission cavity; 21, fourth bevel gear; 22, fifth bevel gear. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0022] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer to Figures 1-4The utility model provides a kind of plastic extruder with preheating function, including device base 1 and barrel 4, device base 1 is arranged with device main body 2, barrel 4 is connected on device main body 2 by connecting pipe 3, the top of barrel 4 is provided with first transmission box 6, the top of first transmission box 6 is provided with servo motor 7, first transmission cavity 11 is opened in first transmission box 6, the action output shaft of servo motor 7 extends into first transmission cavity 11 and is equipped with first bevel gear 8, second bevel gear 9 meshed with first bevel gear 8 is rotatably installed in first transmission cavity 11, the bottom of first bevel gear 8 is connected with rotating shaft 12, rotating shaft 12 is rotatably installed with sleeve rod 14 outside, the top of sleeve rod 14 is provided with third bevel gear 10 meshed with second bevel gear 9, the bottom of sleeve rod 14 is connected with second transmission box 19, second transmission cavity 20 is opened in second transmission box 19, the bottom end of rotating shaft 12 extends into second transmission cavity 20 and is connected with fourth bevel gear 21, two fifth bevel gears 22 meshed with fourth bevel gear 21 are rotatably installed in second transmission cavity 20, the end of two fifth bevel gears 22 away from each other is connected with connecting rod 16, connecting rod 16 is provided with stirring scraping rod 17, two electric heating rods 18 are arranged on stirring scraping rod 17 along horizontal direction with interval.

[0025] By the cooperation of the structures such as servo motor 7, stirring scraping rod 17 and electric heating rod 18, first bevel gear 8 and rotating shaft 12 at the bottom of first bevel gear 8 can be driven to rotate by servo motor 7, sleeve rod 14 is driven to rotate in the opposite direction outside rotating shaft 12 by the cooperation of first bevel gear 8, second bevel gear 9 and third bevel gear 10, two fifth bevel gears 22 in second transmission cavity 20 are driven to rotate by fourth bevel gear 21 at the bottom of rotating shaft 12, and then the rotation of sleeve rod 14 drives two stirring scraping rods 17 in second transmission box 19 to rotate in material cavity 15, and the two stirring scraping rods 17 rotate at the same time, the material in barrel 4 is stirred and turned over at the same time, and the material can be uniformly preheated by the electric heating rods 18 on the two stirring scraping rods 17.

[0026] Specifically, in the embodiment, barrel 4 is provided with material cavity 15, and the top of barrel 4 is provided with material inlet 5 communicated with material cavity 15.

[0027] Through the setting of material inlet 5, the material can be conveniently added into barrel 4 through material inlet 5.

[0028] Specifically, in the embodiment, stirring scraping rod 17 is welded by two symmetrical inclined scraping rods.

[0029] Specifically, in the embodiment, the inclination of the two inclined scraping rods on stirring scraping rod 17 is matched with the inclination of the inclined surface at the bottom of material cavity 15, so that the material adhered to the inner wall of material cavity 15 can be scraped off and preheated by stirring scraping rod 17.

[0030] Specifically, in the embodiment, the sleeve rod 14 is arranged with a plurality of stirring rods 13 in the circumferential direction at intervals, and the stirring rods 13 are arranged in an inclined manner to further stir the material in the material cavity 15 and improve the stirring effect.

[0031] Specifically, in the embodiment, the connecting rod 16 and the second transmission box 19 are connected through a bearing.

[0032] Specifically, in the embodiment, the two fifth bevel gears 22 are symmetrically arranged in the second transmission cavity 20.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic extruder with a preheating function, comprising a device base and a barrel, characterized in that: The device base is provided with a device main body, the barrel is connected to the device main body through a connecting pipe, the top of the barrel is provided with a first transmission box, the top of the first transmission box is provided with a servo motor, a first transmission cavity is formed in the first transmission box, the action output shaft of the servo motor extends into the first transmission cavity and is provided with a first bevel gear, a second bevel gear meshing with the first bevel gear is rotatably arranged in the first transmission cavity, the bottom of the first bevel gear is connected with a rotating shaft, the rotating shaft is rotatably arranged outside a sleeve rod, the top of the sleeve rod is provided with a third bevel gear meshing with the second bevel gear, the bottom of the sleeve rod is connected with a second transmission box, a second transmission cavity is formed in the second transmission box, the bottom end of the rotating shaft extends into the second transmission cavity and is connected with a fourth bevel gear, two fifth bevel gears meshing with the fourth bevel gear are rotatably arranged in the second transmission cavity, the ends of the two fifth bevel gears away from each other are connected with connecting rods, the connecting rods are provided with stirring scraping rods, two electric heating rods are arranged on the stirring scraping rods in the horizontal direction.

2. The plastic extruder with preheating function according to claim 1, characterized in that: A material cavity is formed in the barrel, and the top of the barrel is provided with a material inlet communicating with the material cavity.

3. The plastic extruder with preheating function according to claim 1, characterized in that: The stirring scraping rod is welded by two symmetrical inclined scraping rods.

4. The plastic extruder with preheating function according to claim 3, characterized in that: The inclination of the two inclined scraping rods on the stirring scraping rod is matched with the inclination of the inclined surface at the bottom of the material cavity.

5. The plastic extruder with preheating function according to claim 1, characterized in that: A plurality of stirring rods are arranged on the sleeve rod in the circumferential direction at intervals, and the stirring rods are arranged in an inclined manner.

6. The plastic extruder with preheating function according to claim 1, characterized in that: The connecting rod and the second transmission box are connected through a bearing.

7. The plastic extruder with preheating function according to claim 1, characterized in that: The two fifth bevel gears are symmetrically arranged in the second transmission cavity.

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