Double-screw extrusion mechanism for regenerated rubber

Abstract

The utility model discloses a regenerated rubber twin-screw extrusion mechanism which comprises an extrusion cylinder, a heating ring is fixedly embedded in the outer surface of the extrusion cylinder, two spiral conveying rods are arranged in the extrusion cylinder, the left end of the extrusion cylinder is fixedly connected with a placing box, two sealing bearings are fixedly embedded in the right side face of the placing box, and the left end of the placing box is fixedly connected with a screw rod. And the left end of each spiral conveying rod penetrates through a sealing bearing and is fixedly connected with a gear disc, the two gear discs are meshed, the inner side wall of the containing box is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with the left ends of the spiral conveying rods, and the upper surface of the extrusion barrel fixedly communicates with a feeding hopper. According to the device, through the arrangement of the feeding hopper, the filling pipe, the horn hopper, the stirring motor, the rotating shaft, the stirring blades and the spiral conveying rod, a regenerated rubber material can be effectively mixed and stirred, auxiliary feeding of raw materials is achieved, and efficient and high-quality melt extrusion operation of the regenerated rubber material is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of rubber product manufacturing technology, and in particular to a twin-screw extrusion mechanism for recycled rubber. Background Technology

[0002] The process of producing recycled rubber from desulfurized waste rubber can achieve a utilization rate of over 99%. Waste rubber recycling technology can alleviate resource shortages and reduce environmental pollution. Therefore, it is often necessary to recycle and reuse waste rubber.

[0003] Extruders are frequently used in the recycling and processing of waste rubber. However, current extruders have certain shortcomings. When feeding recycled rubber materials, they cannot effectively mix the rubber materials, thereby reducing the mixing effect of the rubber materials inside the extrusion barrel and reducing the extrusion quality of the rubber materials. To address these issues, we propose a twin-screw extrusion mechanism for recycled rubber. Utility Model Content

[0004] The purpose of this invention is to provide a twin-screw extrusion mechanism for recycled rubber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A twin-screw extrusion mechanism for recycled rubber includes an extrusion cylinder with a heating coil fixedly embedded on its outer surface. Two helical conveying rods are located inside the extrusion cylinder. A placement box is fixedly connected to the left end of the extrusion cylinder. Two sealed bearings are fixedly embedded on the right side of the placement box. A gear disk is fixedly connected to the left end of each helical conveying rod through the sealed bearing, and the two gear disks mesh with each other. A servo motor is fixedly connected to the inner wall of the placement box, and the output end of the servo motor is fixedly connected to the left end of the helical conveying rod. A feeding hopper is fixedly connected to the upper surface of the extrusion cylinder. A packing tube is fixedly connected to both the front and back of the feeding hopper. A funnel is fixedly connected to the top end of each packing tube. A support bearing is fixedly embedded on the upper surface of the feeding hopper. A stirring motor is mounted on the upper surface of the feeding hopper. A rotating shaft is fixedly connected to the output end of the stirring motor. The bottom end of the rotating shaft passes through the support bearing and extends into the interior of the feeding hopper. Two arc-shaped support rods are fixedly connected to the outer surface of the rotating shaft, and a stirring blade is fixedly connected to the end of each arc-shaped support rod away from the rotating shaft.

[0007] In a further embodiment, the hopper is provided with a spiral conveying rod inside, and the top end of the spiral conveying rod is fixedly connected to the bottom end of the rotating shaft.

[0008] In a further embodiment, an operation panel is fixedly connected to the front of the placement box, and the operation panel is electrically connected to the servo motor and the stirring motor via wires.

[0009] In a further embodiment, a protective shell is fixedly connected to the outer surface of the extrusion cylinder, and the protective shell is made of heat-insulating material.

[0010] In a further embodiment, a maintenance cover is fixedly connected to the upper surface of the placement box by two sets of mounting pins, and a handle is fixedly connected to the upper surface of the maintenance cover.

[0011] In a further embodiment, the bottom surface of the extrusion cylinder is fixedly connected to two mounting legs, and the bottom end of each mounting leg is fixedly connected to two mounting plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device, through its extrusion cylinder, heating coil, protective shell, placement box, servo motor, screw conveyor, and gear disc, utilizes the servo motor's operation, which meshes with two gear discs, to drive two screw conveyors, facilitating rapid material discharge from the rubber extruder. Furthermore, the device features a feeding hopper, filling pipe, horn hopper, stirring motor, rotating shaft, stirring blades, and screw conveyor, enabling effective mixing and agitation of recycled rubber materials and assisting in raw material feeding, thus facilitating efficient and high-quality melt extrusion of recycled rubber. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a twin-screw extrusion mechanism for recycled rubber.

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the extrusion cylinder in a twin-screw extrusion mechanism for recycled rubber.

[0016] Figure 3 This is a cross-sectional view of the extrusion barrel in a twin-screw extrusion mechanism for recycled rubber.

[0017] Figure 4 This is a sectional view of the side view of the extrusion barrel in a twin-screw extrusion mechanism for recycled rubber.

[0018] In the diagram: 1. Extrusion cylinder; 2. Protective shell; 3. Support bearing; 4. Agitator motor; 5. Horn hopper; 6. Packing tube; 7. Feed hopper; 8. Handle; 9. Maintenance cover; 10. Placement box; 11. Control panel; 12. Mounting plate; 13. Mounting leg; 14. Spiral conveyor rod; 15. Rotating shaft; 16. Agitator blade; 17. Arc-shaped support rod; 18. Heating coil; 19. Spiral conveyor rod; 20. Servo motor; 21. Gear disk; 22. Sealed bearing. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] 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.

[0022] Please see Figure 1-4In this utility model, the twin-screw extrusion mechanism for recycled rubber includes an extrusion cylinder 1. A heating coil 18 is fixedly embedded on the outer surface of the extrusion cylinder 1. Two spiral conveying rods 19 are provided inside the extrusion cylinder 1. A placement box 10 is fixedly connected to the left end of the extrusion cylinder 1. Two sealed bearings 22 are fixedly embedded on the right side of the placement box 10. The left end of each spiral conveying rod 19 passes through the sealed bearing 22 and is fixedly connected to a gear disk 21. The two gear disks 21 mesh with each other. A servo motor 20 is fixedly connected to the inner wall of the placement box 10. The output end of the servo motor 20 is fixedly connected to the left end of the spiral conveying rod 19. The upper surface of the cylinder 1 is fixedly connected to a feeding hopper 7. The front and back of the feeding hopper 7 are both fixedly connected to a packing pipe 6. The top of each packing pipe 6 is fixedly connected to a funnel hopper 5. The upper surface of the feeding hopper 7 is fixedly embedded with a support bearing 3. The upper surface of the feeding hopper 7 is equipped with a stirring motor 4. The output end of the stirring motor 4 is fixedly connected to a rotating shaft 15. The bottom end of the rotating shaft 15 passes through the support bearing 3 and extends into the interior of the feeding hopper 7. The outer surface of the rotating shaft 15 is fixedly connected to two arc-shaped support rods 17. The end of each arc-shaped support rod 17 away from the rotating shaft 15 is fixedly connected to a stirring blade 16.

[0023] The hopper 7 is equipped with a spiral conveyor rod 14 inside. The top end of the spiral conveyor rod 14 is fixedly connected to the bottom end of the rotating shaft 15, which can assist the rubber recycled material in the feeding operation. The front of the placement box 10 is fixedly connected to the operation panel 11. The operation panel 11 is electrically connected to the servo motor 20 and the stirring motor 4 through wires, which can make it easier for the operator to control the extruder and facilitate the extrusion operation of rubber material.

[0024] A protective shell 2 is fixedly connected to the outer surface of the extrusion cylinder 1. The protective shell 2 is made of heat-insulating material and can protect the exterior of the extrusion cylinder 1, facilitating the safe use of this extruder. A maintenance cover 9 is fixedly connected to the upper surface of the placement box 10 by two sets of mounting nails. A handle 8 is fixedly connected to the upper surface of the maintenance cover 9, which can be easily opened for maintenance of this extrusion mechanism. Two mounting legs 13 are fixedly connected to the bottom surface of the extrusion cylinder 1. Two mounting plates 12 are fixedly connected to the bottom end of each mounting leg 13, which can install and fix the extrusion cylinder 1, facilitating the stable use of this extruder.

[0025] The working principle of this utility model is as follows:

[0026] In use, the extrusion cylinder 1 is first installed and fixed by the mounting legs 13 and mounting plate 12. Then, the rubber extrusion mechanism is powered on, and the rubber raw material is loaded into the feed hopper 7 through the filler tube 6 and the horn hopper 5. At the same time, the operation panel 11 is clicked to control the stirring motor 4 to drive the stirring blades 16 and the spiral conveyor rod 14 to rotate, mix and stir the rubber raw material and assist the recycled rubber material to be fed into the extrusion cylinder 1. Then, the servo motor 20 is controlled to work, and through cooperation with the gear disk 21, it drives the two spiral conveyor rods 19 to rotate, conveying the recycled rubber material. At the same time, the heating coil 18 is used to melt the recycled rubber material, realizing the efficient extrusion operation of the recycled rubber material.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A twin-screw extrusion mechanism for recycled rubber, characterized in that: The device includes an extrusion cylinder (1), on the outer surface of which a heating coil (18) is fixedly embedded. Two spiral conveying rods (19) are provided inside the extrusion cylinder (1). A placement box (10) is fixedly connected to the left end of the extrusion cylinder (1). Two sealed bearings (22) are fixedly embedded on the right side of the placement box (10). The left end of each spiral conveying rod (19) passes through the sealed bearing (22) and is fixedly connected to a gear disc (21). The two gear discs (21) mesh with each other. A servo motor (20) is fixedly connected to the inner wall of the placement box (10). The output end of the servo motor (20) is fixedly connected to the left end of the spiral conveying rod (19). The upper surface of the extrusion cylinder (1) is fixedly connected to... The feeding hopper (7) has a packing tube (6) fixedly connected to both the front and back sides of the feeding hopper (7). The top end of each packing tube (6) is fixedly connected to a horn bucket (5). A support bearing (3) is fixedly embedded on the upper surface of the feeding hopper (7). A stirring motor (4) is installed on the upper surface of the feeding hopper (7). A rotating shaft (15) is fixedly connected to the output end of the stirring motor (4). The bottom end of the rotating shaft (15) passes through the support bearing (3) and extends into the interior of the feeding hopper (7). Two arc-shaped support rods (17) are fixedly connected to the outer surface of the rotating shaft (15). A stirring blade (16) is fixedly connected to the end of each arc-shaped support rod (17) away from the rotating shaft (15).

2. The twin-screw extrusion mechanism for recycled rubber according to claim 1, characterized in that: The hopper (7) is equipped with a spiral conveyor rod (14) inside, and the top end of the spiral conveyor rod (14) is fixedly connected to the bottom end of the rotating shaft (15).

3. The twin-screw extrusion mechanism for recycled rubber according to claim 1, characterized in that: An operation panel (11) is fixedly connected to the front of the placement box (10). The operation panel (11) is electrically connected to the servo motor (20) and the stirring motor (4) through wires.

4. The twin-screw extrusion mechanism for recycled rubber according to claim 1, characterized in that: The outer surface of the extrusion cylinder (1) is fixedly connected to a protective shell (2), which is made of heat-insulating material.

5. The twin-screw extrusion mechanism for recycled rubber according to claim 1, characterized in that: The upper surface of the placement box (10) is fixedly connected to a maintenance cover (9) by two sets of mounting pins, and a handle (8) is fixedly connected to the upper surface of the maintenance cover (9).

6. The twin-screw extrusion mechanism for recycled rubber according to claim 1, characterized in that: The bottom surface of the extrusion cylinder (1) is fixedly connected to two mounting legs (13), and the bottom end of each mounting leg (13) is fixedly connected to two mounting plates (12).

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