A single screw extruder feed barrel

Abstract

The utility model belongs to the technical field of feeding device, disclose a kind of single screw extruder feeding barrel, hopper, hopper is set above ground, the upper portion of hopper is provided with crushing box, the inside of crushing box is provided with crushing roller, discharging structure, discharging structure is set in the upper portion of hopper, the upper portion of crushing roller is provided with square box, the inside of square box is provided with the discharging box of mobile feeding, the inside of discharging box is provided with the shunt frame of dispersed material, the lower portion of square box is provided with the protective sleeve of shielding material when feeding, shunt frame is divided into two strands with the material falling, respectively drop into two crushing roller upper portion, material is dispersed crushing, the crushing efficiency of two crushing rollers is higher, open electric telescopic rod power, electric telescopic rod drives moving frame and discharging box to move, discharging box carries material and moves discharging, evenly the material is scattered between two crushing rollers, avoid material accumulation in crushing roller one position, leading to crushing roller local wear and tear seriously.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, specifically, it relates to a feeding cylinder for a single screw extruder. Background Technology

[0002] The feed barrel of a single-screw extruder is a core equipment component used in industries such as plastics, rubber, and food. Its main function is to uniformly and stably convey materials to the extruder screw, while simultaneously achieving crushing, mixing, and quantitative control.

[0003] The prior art discloses a feeding cylinder of a single screw extruder (CN202420058523.0), which includes a hopper, a crushing box installed above the hopper, two first motors on one side of the crushing box, a first rotating shaft on one side of the first motor, the first rotating shaft passing through the interior of the crushing box and rotatably connected to a bearing on the inner wall of the crushing box, a crushing roller installed on the first rotating shaft, a support frame installed inside the hopper, a second motor fixed on the support frame, a second rotating shaft below the second motor, the second rotating shaft passing through the support frame to the bottom of the hopper, a spiral blade installed on the second rotating shaft, a baffle installed below the second rotating shaft, and a discharge port provided on the baffle.

[0004] Existing technology crushes materials using two crushing rollers. The material is poured onto the top of the crushing rollers, and when the material is added, it tends to concentrate in the middle of the crushing rollers, resulting in faster wear in the middle of the rollers. The crushing efficiency is low because the material is concentrated in the middle of the crushing rollers, and the roller surface wear is uneven.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the technical problem of material concentration in the middle of the crushing roller, the basic concept of the technical solution adopted by this utility model is: a feeding cylinder of a single screw extruder, including a hopper, the hopper is set above the ground, a crushing box is set above the hopper, and a crushing roller is set inside the crushing box; The material feeding structure is located above the hopper. A square box is installed above the crushing roller. Inside the square box is a movable feeding box, and inside the feeding box is a diverter for dispersing materials. A protective sleeve is installed below the square box to shield the materials during feeding.

[0007] In a preferred embodiment of the present invention, the feeding structure further includes side plates, with one side plate fixed on each side of the feeding box, one end of each side plate inclined downwards, and a diversion frame fixed below the two side plates and on the inner wall of the feeding box.

[0008] In a preferred embodiment of the present invention, the feeding structure further includes a movable frame and slide rails. A slide rail is fixed on each side of the square box, and the two ends of the movable frame are slidably connected to the middle of a slide rail. The feeding box is fixedly connected to the middle of the movable frame.

[0009] In a preferred embodiment of this utility model, the feeding structure further includes a support frame and an electric telescopic rod. The bottom surfaces of the two supports are fixedly connected to the top surface of the crushing box, one end of the two supports is fixedly connected to both sides of the square box, the electric telescopic rod is fixedly mounted on one side of one support frame, and the output shaft of the electric telescopic rod is fixedly connected to one side of the moving frame.

[0010] In a preferred embodiment of this utility model, the feeding structure further includes bolts and threaded holes. The protective sleeve is slidably connected to the cavity of the square box. A bolt is provided on each side of the square box, and a threaded hole is opened on one side of each of the two protective sleeves. Each of the two bolts is threadedly connected to a threaded hole.

[0011] In a preferred embodiment of this utility model, a slot is provided on the top surface of the crushing box, and the bottom end of the protective sleeve engages with the slot.

[0012] In a preferred embodiment of this utility model, the diversion frame is V-shaped and the movable frame is V-shaped.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The diverting frame divides the falling material into two streams, which fall onto the two crushing rollers respectively. The material is dispersed and crushed, and the crushing efficiency of the two crushing rollers is higher. When the power of the electric telescopic rod is turned on, the electric telescopic rod drives the moving frame and the feeding box to move. The feeding box drives the material to move and feed, evenly spreading the material between the two crushing rollers, avoiding the accumulation of material in one position of the crushing rollers, which would cause severe local wear of the crushing rollers.

[0014] 2. Before discharging material into the feeding box, engage one end of the protective sleeve with the slot. The material will be blocked during its descent, preventing dust from spilling out. After storing the protective sleeve in the square box, thread each of the two bolts into a threaded hole to secure the protective sleeve. This allows for inspection and maintenance of the crushing roller.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the material feeding structure of this utility model; Figure 3This is a schematic diagram of the material feeding box of this utility model; Figure 4 This is a schematic diagram of the inside of the material feeding box of this utility model; Figure 5 This is a schematic diagram of the protective sleeve of this utility model.

[0017] In the diagram: 1. Hopper; 2. Square box; 3. Support; 4. Electric telescopic rod; 5. Discharge box; 6. Crushing box; 7. Bolt; 8. Threaded hole; 9. Moving frame; 10. Slide rail; 11. Side plate; 12. Diverter; 13. Protective sleeve; 14. Slot; 15. Crushing roller. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0019] A single-screw extruder feed barrel, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the feeding structure is located above the hopper 1. A square box 2 is positioned above the crushing roller 15. Inside the square box 2 is a movable feeding box 5, and inside the feeding box 5 is a material distribution frame 12. Below the square box 2 is a protective sleeve 13 that shields the material during feeding. The feeding structure also includes side plates 11, with one side plate 11 fixed to each side of the feeding box 5. One end of each side plate 11 is inclined downwards. Below the two side plates 11 and on the inner wall of the feeding box 5, a distribution frame 12 is fixed. The feeding structure also includes a movable frame 9 and a sliding frame. The slide rail 10 is fixed on both sides of the square box 2. The two ends of the moving frame 9 are slidably connected to the middle of the slide rail 10. The feeding box 5 is fixedly connected to the middle of the moving frame 9. The feeding structure also includes a support 3 and an electric telescopic rod 4. The bottom surfaces of the two supports 3 are fixedly connected to the top surface of the crushing box 6. One end of the two supports 3 is fixedly connected to both sides of the square box 2. The electric telescopic rod 4 is fixedly installed on one side of one support 3. The output shaft of the electric telescopic rod 4 is fixedly connected to one side of the moving frame 9. The diverter 12 is V-shaped and the moving frame 9 is V-shaped.

[0020] The material is poured into the top of the feeding box 5. The material slowly slides down from the gap between the two side plates 11 to the diverting frame 12. The diverting frame 12 divides the falling material into two streams, which fall into the top of the two crushing rollers 15 respectively. The material is dispersed and crushed, and the crushing efficiency of the two crushing rollers 15 is higher. Turn on the power of the electric telescopic rod 4. The electric telescopic rod 4 drives the moving frame 9 and the feeding box 5 to move. The feeding box 5 drives the material to move and discharge, and evenly spreads the material between the two crushing rollers 15 to avoid the material accumulating in one position of the crushing rollers 15, which would cause severe local wear of the crushing rollers 15.

[0021] A single-screw extruder feed barrel, such as Figure 1 and Figure 5 As shown, the feeding structure also includes bolts 7 and threaded holes 8. The protective sleeve 13 is slidably connected to the cavity of the square box 2. A bolt 7 is provided on each side of the square box 2. A threaded hole 8 is opened on one side of each of the two protective sleeves 13. The two bolts 7 are threadedly connected to one of the threaded holes 8. A slot 14 is opened on the top surface of the crushing box 6. The bottom end of the protective sleeve 13 is engaged with the slot 14.

[0022] Before discharging material into the feeding box 5, one end of the protective sleeve 13 is engaged with the slot 14. The material is blocked during the falling process, preventing dust from overflowing and splashing out. The protective sleeve 13 is then put into the square box 2, and the two bolts 7 are each threaded into a threaded hole 8. The protective sleeve 13 is then fixed, allowing for inspection and maintenance of the crushing roller 15.

[0023] A single-screw extruder feed barrel, such as Figure 1 As shown, a hopper 1 is positioned above the ground, and a crushing box 6 is positioned above the hopper 1. A crushing roller 15 is installed inside the crushing box 6. It is worth noting that a single-screw extruder feeding cylinder also includes a support frame, baffle, discharge port, feeding pipe, inlet, flange, mounting hole, first motor, first shaft, second motor, second shaft, spiral blades, and protective cover. The above structure, along with the hopper 1, crushing box 6, and crushing roller 15, are all prior art and have been disclosed in a single-screw extruder feeding cylinder (CN202420058523.0). Specific embodiments will not be described in detail here.

[0024] The device is mounted on the extruder via a flange. Two first motors are started, driving two first shafts to rotate in opposite directions. These shafts rotate the crushing roller 15, feeding material into the crushing box 6. The material is crushed by the crushing roller 15 and flows into the hopper. The second motor is then started, driving the second shaft to rotate. This shaft rotates the spiral blades, transporting the material from top to bottom. Because the hopper's diameter decreases from top to bottom, the material accumulates and is compressed at the bottom. The baffle rotates with the second shaft. When the discharge port rotates to the inlet, the material flows from the hopper 1 into the feeding pipe, achieving uniform and continuous feeding of material into the single-screw extruder. The working principle of this utility model is as follows: Before feeding material into the feeding box 5, one end of the protective sleeve 13 is engaged with the slot 14, which blocks the material during its fall, preventing dust from spilling out. The material is poured into the feeding box 5 and slowly slides down from the gap between the two side plates 11 to the diverter 12. The diverter 12 divides the falling material into two streams, which fall into the two crushing rollers 15 respectively. The material is dispersed and crushed, and the crushing efficiency of the two crushing rollers 15 is higher. The power of the electric telescopic rod 4 is turned on, and the electric telescopic rod 4 drives the moving frame 9 and the feeding box 5 to move. The feeding box 5 moves the material to feed it, and the material is evenly scattered between the two crushing rollers 15 to avoid the material accumulating in one position of the crushing roller 15, which would cause severe local wear of the crushing roller 15. The material is crushed by the crushing roller 15 and flows into the hopper. The material flows from the hopper 1 into the feeding pipe, realizing the uniform and continuous feeding of the material into the single screw extruder.

[0025] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A feeding barrel for a single-screw extruder, characterized in that, include A hopper (1) is set above the ground. A crushing box (6) is set above the hopper (1). A crushing roller (15) is set inside the crushing box (6). The material feeding structure is set above the hopper (1), and a square box (2) is set above the crushing roller (15). Inside the square box (2) is a material feeding box (5) for moving feeding. Inside the material feeding box (5) is a material distribution frame (12) for dispersing materials. Below the square box (2) is a protective sleeve (13) for blocking materials during feeding.

2. The feeding barrel of a single-screw extruder according to claim 1, characterized in that, The feeding structure also includes side plates (11), with one side plate (11) fixed on each side of the feeding box (5). One end of each side plate (11) is inclined downward, and a diversion rack (12) is fixed below the two side plates (11) and on the inner wall of the feeding box (5).

3. The feeding cylinder of a single-screw extruder according to claim 2, characterized in that, The feeding structure also includes a movable frame (9) and a slide rail (10). A slide rail (10) is fixed on each side of the square box (2). The two ends of the movable frame (9) are slidably connected to the middle of a slide rail (10). The feeding box (5) is fixedly connected to the middle of the movable frame (9).

4. The feeding barrel of a single-screw extruder according to claim 3, characterized in that, The feeding structure also includes a support (3) and an electric telescopic rod (4). The bottom surfaces of the two supports (3) are fixedly connected to the top surface of the crushing box (6). One end of the two supports (3) is fixedly connected to both sides of the square box (2). The electric telescopic rod (4) is fixedly mounted on one side of a support (3). The output shaft of the electric telescopic rod (4) is fixedly connected to one side of the moving frame (9).

5. The feeding barrel of a single-screw extruder according to claim 4, characterized in that, The feeding structure also includes bolts (7) and threaded holes (8). The protective sleeve (13) is slidably connected to the cavity of the square box (2). A bolt (7) is provided on each side of the square box (2). A threaded hole (8) is opened on each side of the two protective sleeves (13). The two bolts (7) are threadedly connected to a threaded hole (8).

6. The feeding barrel of a single-screw extruder according to claim 5, characterized in that, The top surface of the crushing box (6) has a slot (14) and the bottom end of the protective sleeve (13) engages with the slot (14).

7. The feeding barrel of a single-screw extruder according to claim 6, characterized in that, The diversion frame (12) is V-shaped, and the movable frame (9) is V-shaped.

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