Double-screw extruder easy to maintain

Abstract

The utility model discloses an easy-to-maintain double-screw extruder which comprises a rack, a motor, a gear box and a main cylinder which are sequentially connected are arranged on the rack, and a feeding device is connected to the main cylinder; the main machine barrel is formed by connecting a plurality of sections of barrel bodies and comprises an upper machine barrel and a lower machine barrel, the lower machine barrel is hinged to the upper machine barrel through a torsional spring, a jacking block is arranged on the hinged side of the lower machine barrel, a guide channel is formed in the jacking block, an air cylinder arranged on the same side as the jacking block is arranged on the upper machine barrel, and an output shaft of the air cylinder is connected with a guide head. The guide head can move up and down in the guide channel and is matched with the torsion spring to control the opening and closing angle of the lower machine barrel; a Z-shaped plate and a clamping plate are arranged on the other side, opposite to the hinged side, of the lower machine barrel and the other side, opposite to the hinged side, of the upper machine barrel correspondingly, a clamping groove allowing the Z-shaped plate to be clamped in is formed in the clamping plate, and a limiting sliding plate used for positioning the Z-shaped plate is slidably connected to the clamping plate. The main machine barrel can be opened very conveniently, cleaning and maintenance are convenient, operation is convenient and labor-saving, the upper machine barrel and the lower machine barrel can be tightly pressed, and safe use of the extruder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a twin-screw extruder that is easy to maintain. Background Art

[0002] A twin-screw extruder's barrel contains two mixing screws, arranged axially along the barrel, extruding the material from one side of the barrel to the other. Conventional maintenance on a twin-screw extruder requires the entire barrel to be removed for cleaning, which is time-consuming, labor-intensive, and inconvenient. It also easily leads to incomplete cleaning of the barrel. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a twin-screw extruder that is easy to maintain, aiming to solve the technical problems in the prior art of time-consuming and labor-intensive maintenance, inconvenient operation, and difficulty in cleaning the inside of the barrel.

[0004] The technical solution of the utility model is: a twin-screw extruder that is easy to maintain, comprising a frame, the frame is provided with a motor, a gear box, and a main barrel connected in sequence, and the main barrel is connected to a feeding device; the main barrel is formed by connecting several sections of barrels, the main barrel comprises an upper barrel and a lower barrel, one side of the lower barrel is hinged to one side of the upper barrel by a torsion spring, the hinged side of the lower barrel is provided with a tightening block, a guide channel is provided in the tightening block, the upper barrel is provided with a cylinder arranged on the same side as the tightening block, the output shaft of the cylinder is connected to a guide head, the guide head can move up and down in the guide channel and cooperate with the torsion spring to control the opening and closing angle of the lower barrel; the other sides of the lower barrel and the upper barrel opposite to the hinged side are also respectively provided with a Z-shaped plate and a card plate, the card plate is provided with a card slot for the Z-shaped plate to be clamped, and the card plate is also slidably connected with a limiting slide for positioning the Z-shaped plate.

[0005] Furthermore, in the utility model, two screws are provided in the main barrel, and the motor is connected to the two screws via a gear box.

[0006] Furthermore, the discharge port of the feeding device in the present invention is connected to a horizontal screw feeding mechanism, the horizontal screw feeding mechanism is connected to a vertical screw feeding mechanism, and the vertical screw feeding mechanism is connected to the main barrel.

[0007] Furthermore, the upper barrel in the present invention is provided with a mounting plate, and a plurality of cylinders arranged at intervals are provided on the mounting plate, and each cylinder is correspondingly arranged on one side of each section of the barrel of the main barrel.

[0008] Furthermore, the lower barrel of the present invention is provided with a plurality of spaced apart tightening blocks, and each tightening block is provided in one-to-one correspondence with each cylinder.

[0009] Furthermore, the guide channel described in the utility model includes a tightening section, a releasing section, and an adjusting section that are connected in sequence from bottom to top. The tightening section is used to cooperate with the guide head to tightly press the lower barrel and the upper barrel. When the guide head moves from bottom to top, it can gradually release and open the lower barrel.

[0010] Furthermore, each section of the main cylinder of the utility model is provided with the Z-shaped plate, the clamping plate and the limiting slide plate.

[0011] Compared with the prior art, the utility model has the following advantages: the main barrel of the twin-screw extruder of the utility model can be opened very conveniently, and the torsion spring on one side cooperates with the extension and contraction of the cylinder to realize the automatic opening and closing of the lower barrel, which is convenient for cleaning and maintenance of the interior, and the operation is convenient and labor-saving. The clamping plate and the limiting slide plate on the other side of the main barrel can cooperate to position the Z-type plate to achieve further locking and ensure the tight pressing of the upper and lower barrels, thereby ensuring the safe use of the extruder. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the utility model (the structures on both sides of the main cylinder are not drawn);

[0013] Figure 2 This is a schematic diagram of the specific connection between the upper barrel and the lower barrel of the main barrel of the present utility model;

[0014] Figure 3 Schematic diagram of the release state of the lower barrel of the main barrel of the present utility model;

[0015] Figure 4 This is a schematic diagram of the lower barrel of the main barrel of the present utility model in an open state;

[0016] Figure 5 This is a rear view of the main barrel of the present utility model;

[0017] Figure 6 This is a front view of the main barrel of the present utility model;

[0018] Figure 7 This is a schematic diagram of the released state of the Z-shaped plate in the present invention.

[0019] Among them: 1. Frame; 2. Motor; 3. Gearbox; 4. Main barrel; 401. Upper barrel; 402. Lower barrel; 5. Feeding device; 6. Horizontal screw feeding mechanism; 7. Vertical screw feeding mechanism; 8. Tightening block; 9. Guide channel; 901. Tightening section; 902. Release section; 903. Adjustment section; 10. Cylinder; 11. Guide head; 12. Mounting plate; 13. Z-shaped plate; 14. Clamping plate; 141. Clamping slot; 15. Limiting slide. DETAILED DESCRIPTION

[0020] The following is a detailed description of the specific implementation of the present invention with reference to the accompanying drawings.

[0021] Example:

[0022] The accompanying drawings show a specific embodiment of the utility model of an easy-to-maintain twin-screw extruder. Figure 1 It mainly includes a frame 1, on which a motor 2, a gear box 3, and a main barrel 4 are connected in sequence. An "8"-shaped groove is provided in the main barrel 4, and a screw is provided in each of the two grooves of the "8"-shaped groove. The motor 2 is connected to the two screws through the gear box 3 to drive the screws to rotate.

[0023] The main barrel 4 is connected to a feeding device 5, the discharge port of which is connected to a horizontal screw feeding mechanism 6, which is connected to a vertical screw feeding mechanism 7, which is connected to the main barrel 4. The material in the feeding device 5 is fed into the "8"-shaped groove of the main barrel 4 through the horizontal screw feeding mechanism 6 and the vertical screw feeding mechanism 7, and is extruded by the screw conveyor.

[0024] Reference Figure 2 、 Figure 5 The main barrel 4 is connected by several sections of barrels. The main barrel 4 includes an upper barrel 401 and a lower barrel 402. One side of the lower barrel 402 is hinged to one side of the upper barrel 401 through a torsion spring. Figure 2 The middle torsion spring is not shown. In a free state, the torsion spring applies an outward force to the lower barrel 402 to separate the upper barrel 401 from the lower barrel 402 .

[0025] The top end of the hinged side of the upper barrel 401 is provided with a mounting plate 12, on which are mounted a plurality of spaced cylinders 10, each corresponding to one side of each section of the main barrel 4. The bottom end of the hinged side of the lower barrel 402 is provided with a plurality of spaced tightening blocks 8, each corresponding to one cylinder 10.

[0026] Each tightening block 8 is provided with a guide channel 9, which comprises, from bottom to top, a tightening section 901, a release section 902, and an adjustment section 903, which are interconnected. The output shaft of each cylinder 10 is connected to a guide head 11, each guide head 11 being disposed within a corresponding guide channel 9. The guide heads 11 can move up and down within the guide channels 9 and cooperate with torsion springs to control the opening and closing angles of the lower barrel 402. The tightening section 901 of the guide channel 9 cooperates with the guide heads 11 to tightly press the lower barrel 402 against the upper barrel 401. As the guide heads 11 move from bottom to top, they gradually release and open the lower barrel 402.

[0027] Reference Figure 2 、 Figure 6A Z-shaped plate 13 is provided on the other side of the lower barrel 402, opposite the hinged side. A clamping plate 14 is provided on the other side of the upper barrel 401, opposite the hinged side. Clamping plate 14 has a slot 141 for the Z-shaped plate 13 to engage. A limiting slide 15 is slidably connected to clamping plate 14 for positioning the Z-shaped plate 13. When the limiting slide 15 slides below the top plate of the Z-shaped plate 13, it can be positioned. In this embodiment, each section of the main barrel 4 is equipped with a Z-shaped plate 13, a clamping plate 14, and a limiting slide 15.

[0028] When the twin-screw extruder of this embodiment needs to open the main barrel 4, refer to Figure 7 , first slide the limiting slide 15 to one side of the Z-shaped plate 13 and release the Z-shaped plate 13. Figure 3 Then, the cylinder 10 is used to drive the guide head 11 to rise from the tightening section 901 to the releasing section 902. The lower barrel 402 is acted upon by gravity and the force of the torsion spring, and begins to rotate and separate from the upper barrel 401. Figure 4 The cylinder 10 continues to drive the guide head 11 to rise, moving from the release section 902 to the adjustment section 903, and the lower barrel 402 continues to open to a certain angle to facilitate cleaning and maintenance of the interior of the main barrel 4.

[0029] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any modifications based on the spirit of the main technical solution of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A twin-screw extruder that is easy to maintain, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a motor (2), a gear box (3), and a main barrel (4) connected in sequence, and the main barrel (4) is connected with a feeding device (5); the main barrel (4) is formed by connecting a plurality of barrel sections, and the main barrel (4) comprises an upper barrel (401) and a lower barrel (402), one side of the lower barrel (402) is hinged to one side of the upper barrel (401) through a torsion spring, and a tightening block (8) is provided on the hinged side of the lower barrel (402), and a guide channel (9) is provided in the tightening block (8), and the upper barrel (401) is provided with a guide channel (9) connected to the tightening block. (8) A cylinder (10) is provided on the same side, wherein the output shaft of the cylinder (10) is connected to a guide head (11), and the guide head (11) can move up and down in the guide channel (9) and cooperate with the torsion spring to control the opening and closing angle of the lower barrel (402); the other side of the lower barrel (402) and the upper barrel (401) opposite to the hinged side are also provided with a Z-type plate (13) and a clamping plate (14), respectively, and the clamping plate (14) is provided with a clamping groove (141) for the Z-type plate (13) to be clamped in, and the clamping plate (14) is also slidably connected to a limiting slide (15) for positioning the Z-type plate (13).

2. The easy-to-maintain twin-screw extruder according to claim 1, characterized in that: Two screws are provided in the main barrel (4), and the motor (2) is connected to the two screws via a gear box (3).

3. The easy-to-maintain twin-screw extruder according to claim 1, characterized in that: The discharge port of the feeding device (5) is connected to a transverse screw feeding mechanism (6), the transverse screw feeding mechanism (6) is connected to a vertical screw feeding mechanism (7), and the vertical screw feeding mechanism (7) is connected to the main barrel (4).

4. The easy-to-maintain twin-screw extruder according to claim 1, characterized in that: The upper barrel (401) is provided with a mounting plate (12), and the mounting plate (12) is provided with a plurality of cylinders (10) arranged at intervals, and each cylinder (10) is correspondingly arranged on one side of each section of the barrel of the main barrel (4).

5. The easy-to-maintain twin-screw extruder according to claim 4, characterized in that: The lower barrel (402) is provided with a plurality of spaced apart tightening blocks (8), and each tightening block (8) is arranged in one-to-one correspondence with each cylinder (10).

6. The easy-to-maintain twin-screw extruder according to claim 1, characterized in that: The guide channel (9) includes a tightening section (901), a releasing section (902), and an adjusting section (903) which are arranged in sequence from bottom to top and are connected to each other. The tightening section (901) is used to cooperate with the guide head (11) to tightly press the lower barrel (402) and the upper barrel (401). When the guide head (11) moves from bottom to top, it can gradually release and open the lower barrel (402).

7. The easy-to-maintain twin-screw extruder according to claim 1, characterized in that: Each section of the main cylinder (4) is provided with the Z-shaped plate (13), the clamping plate (14) and the limiting slide plate (15).

Images