CN213972442U - Plastic sheet three-layer extruder - Google Patents

Abstract

The utility model discloses a three-layer extruder for plastic sheets, comprising a machine table, a motor and a barrel are fixed on the machine table, and an extrusion mechanism for conveying raw materials is arranged in the barrel, and the barrel is provided with an extrusion mechanism for conveying raw materials. The upper end of the right side of the barrel is provided with a lowering barrel, a lowering mechanism is provided in the lowering barrel, a fixing block fixed to the bottom of the inner wall of the barrel is arranged under the lowering barrel, and a cavity is arranged in the fixing block The cavity is provided with a linkage mechanism, the end of the barrel is connected with a conical pipe, the conical pipe is connected with a conveying pipe, the end of the conveying pipe is connected with a discharge cover, and the discharge cover is equipped with There is a liquid-separating cavity communicated with the conveying pipeline, and the bottom of the liquid-separating cavity is provided with three openings. The utility model has a reasonable structure, the speed between the screw auger and the screw conveying shaft is controlled by the rotating speed with a good ratio between the bevel gears, so as to achieve the purpose of automatic feeding, and can produce plastic sheets of different thicknesses.

Description

A three-layer extruder for plastic sheets

technical field

The utility model relates to the technical field of extruders, in particular to a three-layer extruder for plastic sheets.

Background technique

The extruder relies on the pressure and shear force generated by the screw conveying shaft or other forms, which can plasticize and uniformly mix the materials processed by the matching heating and cooling components, and obtain daily life or industrial products through extrusion roller molding. Materials required for production.

Most of the plastic sheet extruders on the market are single-layer, and the processing of raw materials is realized through the heating and cooling components of the extruder. Since the extruder needs to be heated and cooled, the energy required is large, and the single-layer The extruder often cannot make full use of the heat generated, resulting in a waste of resources, so a three-layer extruder for plastic sheets is required.

Utility model content

The purpose of this utility model is to solve the shortcomings in the prior art, and proposes a three-layer extruder for plastic sheets, which controls the screw auger and the screw conveying shaft through the rotating speed with a good ratio between the bevel gears. The speed between the two, so as to achieve the purpose of automatic cutting, which is helpful for the automatic operation of the machine, and can produce plastic sheets of different thicknesses.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A three-layer extruder for plastic sheets, comprising a machine table, a motor and a barrel are fixed on the table, an extrusion mechanism for conveying raw materials is arranged in the barrel, and an upper end on the right side of the barrel is provided. There is a lowering barrel, a lowering mechanism is arranged in the lowering barrel, a fixing block fixed to the bottom of the inner wall of the barrel is arranged under the lowering barrel, and a cavity is arranged in the fixing block. The cavity is provided with a linkage mechanism, the end of the barrel is connected with a conical pipe, the conical pipe is connected with a conveying pipe, the end of the conveying pipe is connected with a discharge cover, and the discharge cover is provided with a The liquid-separating cavity communicated with the conveying pipeline, the bottom of the liquid-separating cavity is provided with three openings, the discharge cover is fixedly connected with three partition plates, and the discharge cover is located on one side of the partition plate. There are extruding rollers, one side of the three extruding rollers is matched with an adjusting mechanism, the barrel is provided with a heating component for melting raw materials, and the conveying pipe is provided with a cooling component for cooling.

Preferably, the feeding mechanism includes a rotating rod, and a screw auger is fixed outside the rotating rod.

Preferably, the linkage mechanism includes a first bevel gear disposed in the cavity, the rotating rod penetrates through the cavity and is fixedly connected with the first bevel gear, and the first bevel gear is engaged with a first bevel gear. Two bevel gears, the end of the motor output shaft penetrates the cavity and is fixedly connected with the bottom of the second bevel gear.

Preferably, the extrusion mechanism includes a screw conveying shaft disposed in the barrel, and one end of the screw conveying shaft penetrates the cavity and is fixedly connected to the top of the second bevel gear.

Preferably, the adjustment mechanism includes a threaded rod rotatably connected to the outer wall of the discharge hood, the threaded rod penetrates and is threadedly connected with a connecting block, a side wall of the connecting block is rotatably connected with a rotating shaft, and the threaded rod The end is fixedly connected with a turning handle, one end of the transmission shaft of the extrusion roller is rotatably connected with a slider, the slider is slidably connected with the inner wall of the discharge cover, and the other end of the transmission shaft is fixedly connected with the rotating shaft, so The outer wall of the discharging cover is provided with a bar-shaped opening, and the rotating shaft passes through the bar-shaped opening.

Preferably, a lowering hopper is provided at the bottom of the lowering barrel.

Compared with the prior art, the utility model has the following beneficial effects:

1. Through the coordination of the linkage mechanism to adjust the speed of the screw auger and the screw conveying shaft, the extruder can automatically control the feeding speed and extrusion speed, improve the automation degree of the entire extruder, and improve the efficiency.

2. The distance between the extrusion roller and the separating plate can be adjusted through the adjustment mechanism, so as to achieve the function of controlling the thickness of the extruded plastic sheet, which meets the requirements for different product specifications and improves the production efficiency of the enterprise.

Description of drawings

Fig. 1 is the structural representation of a kind of plastic sheet three-layer extruder proposed by the utility model;

Fig. 2 is the enlarged schematic diagram of place A of a kind of plastic sheet three-layer extruder proposed by the utility model;

FIG. 3 is a schematic diagram of the adjustment mechanism of a three-layer extruder for plastic sheets proposed by the utility model.

In the picture: 1 machine, 2 motors, 3 unloading barrels, 4 screw augers, 5 heating components, 6 screw conveying shafts, 7 barrels, 8 conveying pipes, 9 cooling components, 10 discharging hoods, 11 dividing plates , 12 extrusion rollers, 13 connecting blocks, 14 threaded rods, 15 cavities, 16 first bevel gears, 17 second bevel gears, 18 rotating rods.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation disclosed below. .

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

1-3, a plastic sheet three-layer extruder, including a machine 1, the machine 1 is fixed with a motor 2 and a barrel 7, the barrel 7 is provided with an extrusion mechanism for conveying raw materials, The extrusion mechanism includes a screw conveying shaft 6 arranged in the barrel 7. One end of the screw conveying shaft 6 penetrates the cavity 15 and is fixedly connected to the top of the second bevel gear 17. The upper end of the right side of the barrel 7 is provided with a lower barrel 3. There is a feeding mechanism in the barrel 3. The feeding mechanism includes a rotating rod 18, and a screw auger 4 is fixed outside the rotating rod 18. The feeding mechanism continuously transports the raw materials into the barrel 7 to achieve stable feeding. , the extrusion mechanism outputs the processed raw materials into the discharge cover 10, and finally achieves the purpose of processing.

A fixing block fixed to the bottom of the inner wall of the barrel 7 is arranged under the lowering barrel 3 , a cavity 15 is arranged in the fixing block, a linkage mechanism is arranged in the cavity 15 , and the linkage mechanism includes a first bevel gear arranged in the cavity 15 . 16. The rotating rod 18 penetrates the cavity 15 and is fixedly connected with the first bevel gear 16. The first bevel gear 16 is meshed with a second bevel gear 17. The end of the output shaft of the motor 2 penetrates the cavity 15 and is connected to the bottom of the second bevel gear 17. Fixedly connected, the barrel 7 is provided with a heating component 5 for melting raw materials, and the conveying pipeline 8 is provided with a cooling component 9 for cooling. Control the blanking purpose.

The end of the barrel 7 is connected with a conical pipe, the conical pipe is connected with a conveying pipe 8, and the end of the conveying pipe 8 is connected with a discharge cover 10, and the discharge cover 10 is provided with a liquid separation chamber communicated with the conveying pipe 8, and the liquid separation chamber There are three openings at the inner bottom, and three partition plates 11 are fixedly connected in the discharge cover 10 . The discharge cover 10 is provided with an extrusion roller 12 on one side of the partition plate 11 , and the three extrusion rollers 12 are matched with one side. There is an adjustment mechanism. The adjustment mechanism includes a threaded rod 14 rotatably connected to the outer wall of the discharge cover 10. The threaded rod 14 penetrates and is threadedly connected with a connecting block 13. The side wall of the connecting block 13 is rotatably connected with a rotating shaft, and the end of the threaded rod 14 is fixedly connected There is a turning handle, one end of the transmission shaft of the extrusion roller 12 is rotatably connected with a sliding block, the sliding block is slidably connected with the inner wall of the discharge cover 10, the other end of the transmission shaft is fixedly connected with the rotating shaft, and the outer wall of the discharge cover 10 is provided with a strip-shaped The rotating shaft runs through the bar-shaped mouth, and the distance between the extrusion roller 12 and the partition plate 11 can be adjusted by the adjustment mechanism, so as to achieve the function of controlling the thickness of the extruded plastic sheet, which meets the requirements for different product specifications and improves the efficiency of enterprises. Production efficiency.

When the utility model is used, the raw material plastic particles are poured into the lower barrel 3, and under the action of the screw auger 4, the plastic particles are continuously transported into the barrel 7, and the motor 2 passes through the cavity 15. A pair of bevel gears cooperate with each other to achieve the purpose of rotating the rotating rod 18 and the screw conveying shaft 6, and the plastic particles are continuously transferred to the heating element 5 through the ratio to achieve melting, and at the same time, under the action of the screw conveying shaft 6, the melted good The plastic particles are transported into the discharge hood 10 through the conveying pipeline 8 and cooled by the cooling component 9, and the raw materials that flow out at the beginning are poured into the lower barrel 3 again. The set three channels flow the cooled raw material into between the extrusion roller 12 and the partition plate 11, and the plastic sheet is formed under the action of extrusion. When the thickness of the plastic sheet needs to be changed, pass Rotating the threaded rod 14 controls the position of the connecting block 13 that is rotatably connected to the extrusion roller 12 , so as to achieve the purpose of controlling the size of the gap between the extrusion roller 12 and the separating plate 11 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A plastic sheet three-layer extruder comprises a machine table (1) and is characterized in that a motor (2) and a machine barrel (7) are fixedly arranged on the machine table (1), an extruding mechanism for conveying raw materials is arranged in the machine barrel (7), a lower material barrel (3) is arranged at the upper end of the right side of the machine barrel (7), a blanking mechanism is arranged in the lower material barrel (3) in a matched manner, a fixed block fixed to the bottom of the inner wall of the machine barrel (7) is arranged below the lower material barrel (3), a cavity (15) is arranged in the fixed block, a linkage mechanism is arranged in the cavity (15), a conical pipeline is connected to the tail end of the machine barrel (7), the conical pipeline is communicated with a conveying pipeline (8), a discharging cover (10) is connected to the tail end of the conveying pipeline (8), a liquid separating cavity communicated with the conveying pipeline (8) is arranged in the discharging cover (10), three division board (11) of fixedly connected with in ejection of compact cover (10), be located in ejection of compact cover (10) division board (11) one side is equipped with and extrudes roller (12), and is three it is supporting to be equipped with adjustment mechanism to extrude roller (12) one side, be equipped with heating element (5) that are used for melting the raw materials on barrel (7), be equipped with on pipeline (8) and be used for refrigerated cooling module (9).

2. The plastic sheet three-layer extruder according to claim 1, wherein the blanking mechanism comprises a rotating rod (18), and a spiral auger (4) is fixedly arranged outside the rotating rod (18).

3. The plastic sheet three-layer extruder according to claim 2, wherein the linkage mechanism comprises a first bevel gear (16) arranged in the cavity (15), the rotating rod (18) penetrates through the cavity (15) and is fixedly connected with the first bevel gear (16), the first bevel gear (16) is engaged with a second bevel gear (17), and the tail end of the output shaft of the motor (2) penetrates through the cavity (15) and is fixedly connected with the bottom of the second bevel gear (17).

4. A plastic sheet three-layer extruder as claimed in claim 3, wherein said extruding means comprises a screw conveyor shaft (6) disposed in said barrel (7), one end of said screw conveyor shaft (6) extending through said cavity (15) and being fixedly connected to the top of said second bevel gear (17).

5. The plastic sheet three-layer extruder of claim 1, wherein the adjusting mechanism comprises a threaded rod (14) rotatably connected to the outer wall of the discharging cover (10), the threaded rod (14) penetrates through and is in threaded connection with a connecting block (13), the side wall of the connecting block (13) is rotatably connected with a rotating shaft, a rotating handle is fixedly connected to the end of the threaded rod (14), a sliding block is rotatably connected to one end of a transmission shaft of the extruding roller (12), the sliding block is in sliding connection with the inner wall of the discharging cover (10), the other end of the transmission shaft is fixedly connected with the rotating shaft, a strip-shaped opening is formed in the outer wall of the discharging cover (10), and the rotating shaft penetrates through the strip-shaped opening.

6. Three-layer extruder for plastic sheets according to claim 1, characterized in that the bottom of the lower barrel (3) is provided with a lower hopper.

Images