High-efficiency energy-saving PP plastic bottle extruder screw structure

Abstract

The utility model discloses an efficient and energy-saving screw rod structure of a PP plastic bottle extruder, and relates to the technical field of PP plastic bottle extruders. Comprising a main body disc, a plurality of extrusion rods are arranged at the left end of the main body disc, threaded grooves are formed in the surfaces of the extrusion rods, and the main body disc, the extrusion rods, the threaded grooves, tooth grooves, a spur gear, a rotating column and a motor are used in cooperation, so that the output end of the motor rotates to drive the rotating column and the spur gear to rotate; firstly, a spur gear rotates to drive a plurality of extrusion rods to synchronously rotate, threads and threads of a plurality of threaded grooves are matched with one another, so that the extrusion rods synchronously rotate to shear plastic raw materials through the threaded grooves, the shearing efficiency is improved, and the overall energy consumption is reduced; therefore, materials can be conveniently and rapidly conveyed in the feeding section, material accumulation is reduced, the screw pitches are gradually reduced in the compression section and the metering section, and therefore multiple materials can be effectively compressed and homogenized.

Description

A high-efficiency and energy-saving screw structure for PP plastic bottle extruders Technical Field

[0001] This utility model relates to the field of PP plastic bottle extruder technology, specifically to a high-efficiency and energy-saving screw structure for a PP plastic bottle extruder. Background Technology

[0002] In today's fast-paced consumer market, PP plastic bottles, as packaging containers, are widely used in many fields such as food, medicine, and daily chemicals due to their excellent chemical resistance, good strength and toughness, and market demand continues to rise.

[0003] However, traditional PP plastic bottle extruders mainly rely on independent single-screw operation. Their working principle involves the screw rotating to push, compress, and melt the PP plastic raw material in the hopper, ultimately extruding it into shape. However, this single-screw structure has limited material gripping and pushing capabilities during material transport, making it difficult to improve extrusion efficiency and resulting in a low output of PP plastic bottles per unit time. To meet production demands, the equipment often needs to operate under high load for extended periods, increasing overall energy consumption. Therefore, a highly efficient and energy-saving screw structure for PP plastic bottle extruders is urgently needed to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency and energy-saving screw structure for a PP plastic bottle extruder, in order to solve the problem mentioned in the background art that traditional PP plastic bottle extruders use a single screw for operation, but the single screw has low extrusion efficiency, thereby increasing the overall energy consumption.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving PP plastic bottle extruder screw structure, including a main body disk, a plurality of extrusion rods are provided at the left end of the main body disk, the surface of the extrusion rods is provided with threaded grooves, the surface of the extrusion rods is provided with a plurality of toothed grooves, and the surfaces of the plurality of toothed grooves are meshed with the same spur gear.

[0006] Preferably, one end of the main body disk has a movable hole, and a rotating column is rotatably connected to the inner wall of the movable hole. The surface of the rotating column is fixedly connected to the inner wall of the spur gear.

[0007] Preferably, one end of the main body disk has multiple rotating holes, and the surface of the extrusion rod is rotatably connected to the inner wall of the rotating holes.

[0008] Preferably, a motor is fixedly connected to the right end of the main body disk, and the surface of the rotating column is fixedly connected to the output end of the motor.

[0009] Preferably, a limiting head is provided at one end of the main body disk, and multiple limiting grooves are provided on the side wall of the limiting head, and the extrusion rod is rotatably connected to the inner wall of the limiting groove.

[0010] Preferably, the threads and teeth of the plurality of threaded grooves mesh with each other, and the tooth pitch of the threaded grooves decreases sequentially from right to left.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The main body, extrusion rods, threaded grooves, toothed grooves, spur gears, rotating column, and motor work together to rotate the motor's output end, which in turn drives the rotating column and spur gears to rotate. The rotation of the spur gears drives multiple extrusion rods to rotate synchronously. The threads and teeth of the multiple threaded grooves interact to enable the multiple extrusion rods to rotate synchronously. The multiple threaded grooves shear the plastic raw materials, thereby improving shearing efficiency and reducing overall energy consumption. Secondly, the tooth pitch of the threaded grooves decreases from right to left, which facilitates the rapid conveying of materials in the feeding section and reduces material accumulation. The pitch gradually decreases in the compression and metering sections, which facilitates the effective compression and homogenization of multiple materials. Attached Figure Description

[0013] Figure 1 is a three-dimensional structural diagram of this utility model;

[0014] Figure 2 is a schematic diagram of the movable hole structure of this utility model;

[0015] Figure 3 is a schematic diagram of the threaded groove structure of this utility model.

[0016] In the diagram: 1. Main disc; 2. Extrusion rod; 3. Threaded groove; 4. Toothed groove; 5. Spur gear; 6. Rotating hole; 7. Movable hole; 8. Rotating column; 9. Motor; 10. Limiting head; 11. Limiting groove. Detailed Implementation

[0017] 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.

[0018] Please refer to Figures 1-3. The present invention provides a high-efficiency and energy-saving screw structure for a PP plastic bottle extruder, including a main body disk 1. Multiple extrusion rods 2 are arranged at the left end of the main body disk 1. Threaded grooves 3 and toothed grooves 4 are formed on the surface of each extrusion rod 2. The surfaces of the multiple toothed grooves 4 are meshed with the same spur gear 5. Through the coordinated operation of the main body disk 1, extrusion rods 2, threaded grooves 3, toothed grooves 4, and spur gear 5, the rotation of the spur gear 5 drives the multiple extrusion rods 2 to rotate synchronously. The threads and teeth of the multiple threaded grooves 3 engage with each other, enabling the multiple extrusion rods 2 to rotate synchronously and shear the plastic raw material through the multiple threaded grooves 3, thereby improving shearing efficiency and reducing overall energy consumption.

[0019] Furthermore, a movable hole 7 is provided at one end of the main body disk 1. A rotating column 8 is rotatably connected to the inner wall of the movable hole 7. The surface of the rotating column 8 is fixedly connected to the inner wall of the spur gear 5. The movable hole 7 and the rotating column 8 work together to limit the rotation of the spur gear 5 and facilitate the rotation of the spur gear 5.

[0020] Furthermore, one end of the main body disk 1 is provided with multiple rotating holes 6, and the surface of the extrusion rod 2 is rotatably connected to the inner wall of the rotating holes 6. The multiple rotating holes 6 facilitate the limiting of the extrusion rod 2 and the rotation of the extrusion rod 2.

[0021] Furthermore, a motor 9 is fixedly connected to the right end of the main body disk 1, and the surface of the rotating column 8 is fixedly connected to the output end of the motor 9. By using the motor 9, the output end of the motor 9 can rotate to drive the rotating column 8 to rotate, thereby facilitating the rotation of the spur gear 5.

[0022] Furthermore, a limiting head 10 is provided at one end of the main body disk 1. Multiple limiting grooves 11 are provided on the side wall of the limiting head 10. The extrusion rod 2 is rotatably connected to the inner wall of the limiting groove 11. The limiting head 10 and the limiting groove 11 cooperate with each other to facilitate the limiting of multiple extrusion rods 2.

[0023] Furthermore, the threads and teeth of the multiple threaded grooves 3 mesh with each other, and the pitch of the threaded grooves 3 decreases from right to left. By the threaded grooves 3 decreasing from right to left, it is easy to quickly convey materials in the feeding section and reduce material accumulation. In the compression and metering sections, the pitch gradually decreases, which facilitates effective compression and homogenization of materials.

[0024] Working principle: The main body disk 1, extrusion rods 2, threaded grooves 3, toothed grooves 4, spur gears 5, rotating column 8, and motor 9 work together to rotate the output end of motor 9, thereby driving the rotating column 8 and spur gear 5 to rotate. The rotation of spur gear 5 drives multiple extrusion rods 2 to rotate synchronously. The threads and teeth of multiple threaded grooves 3 cooperate with each other, allowing multiple extrusion rods 2 to rotate synchronously. Through multiple threaded grooves 3, the plastic raw materials are sheared against each other, thereby improving shearing efficiency and reducing overall energy consumption. Secondly, the tooth pitch of the threaded grooves 3 decreases from right to left, which facilitates the rapid conveying of materials in the feeding section and reduces material accumulation. The pitch gradually decreases in the compression and metering sections, which facilitates the effective compression and homogenization of multiple materials.

[0025] 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.

Claims

1. A high-efficiency energy-saving PP plastic bottle extruder screw structure, comprising a main body disc (1), characterized in that: The left end of the main body disk (1) is provided with a plurality of extrusion rods (2), the surface of the extrusion rods (2) is provided with threaded grooves (3), the surface of the extrusion rods (2) is provided with a plurality of toothed grooves (4), and the surfaces of the plurality of toothed grooves (4) are meshed with the same spur gear (5).

2. The high-efficiency energy-saving PP plastic bottle extruder screw structure according to claim 1, characterized in that: One end of the main body disk (1) is provided with a movable hole (7), and a rotating column (8) is rotatably connected to the inner wall of the movable hole (7). The surface of the rotating column (8) is fixedly connected to the inner wall of the spur gear (5).

3. The high-efficiency and energy-saving screw structure for a PP plastic bottle extruder according to claim 1, characterized in that: The main body disk (1) has multiple rotating holes (6) at one end, and the surface of the extrusion rod (2) is rotatably connected to the inner wall of the rotating holes (6).

4. The high-efficiency and energy-saving screw structure for a PP plastic bottle extruder according to claim 2, characterized in that: The right end of the main disk (1) is fixedly connected to a motor (9), and the surface of the rotating column (8) is fixedly connected to the output end of the motor (9).

5. The high-efficiency and energy-saving screw structure for a PP plastic bottle extruder according to claim 1, characterized in that: One end of the main body disk (1) is provided with a limiting head (10), and the side wall of the limiting head (10) is provided with multiple limiting grooves (11). The extrusion rod (2) is rotatably connected to the inner wall of the limiting groove (11).

6. The high-efficiency and energy-saving screw structure for a PP plastic bottle extruder according to claim 1, characterized in that: The threads and teeth of the multiple threaded grooves (3) mesh with each other, and the pitch of the threaded grooves (3) decreases from right to left.

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