A double-screw extruder feeding structure for master batch production

Abstract

The utility model discloses a kind of double-screw extruder feeding structures for master batch production, relate to master batch production field, including double-screw extruder body, feed pipe, feed hopper;The feed pipe is installed on double-screw extruder body, spiral conveyor is fixedly installed in the feed pipe, cover body is installed at the top of the feed pipe, the feed hopper is fixedly arranged in the cover body, the feed hopper bottom is connected with the spiral conveyor feed port by connecting pipe, the spiral conveyor discharge port is connected with the feed pipe inside, effectively solve the existing double-screw extruder, in the use process, master batch production raw materials are passed into from feed hopper, directly drop to weighing device under the action of its gravity and carry out weighing, more raw materials are passed into once, and vertically falling material can cause impact to weighing device, affect the use of weighing device, to cause each raw material inaccurate measurement, and further affect the processing quality of master batch technical problem.

Description

Technical Field

[0001] This utility model relates to the field of masterbatch production, specifically a feeding structure for a twin-screw extruder used in masterbatch production. Background Technology

[0002] Masterbatch, also known as plastic masterbatch or masterbatch material, is an aggregate obtained by uniformly loading an excessive amount of pigment (dye) into resin. It is also a granular material produced during plastic processing by mixing various additives and fillers with resin for ease of operation, followed by metering, mixing, melting, extrusion, and pelletizing using equipment such as extruders. A twin-screw extruder is a crucial piece of equipment for producing plastic masterbatch. After plasticizing and mixing, the material is extruded into strips through a die, and then further processed into finished masterbatch products using slitting equipment.

[0003] However, in existing twin-screw extruders for masterbatch production, the raw materials for masterbatch production are fed into the hopper and fall directly onto the weighing device under their own gravity for weighing. The amount of raw material fed in at one time is large, and the vertically falling material will impact the weighing device, affecting its operation. This leads to inaccurate measurement of each raw material, which in turn affects the processing quality of the masterbatch. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a feeding structure for a twin-screw extruder used in masterbatch production, which solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding structure for a twin-screw extruder used in masterbatch production, comprising a twin-screw extruder body, a feeding pipe, and a feeding hopper; the feeding pipe is installed on the twin-screw extruder body, a screw conveyor is fixedly installed inside the feeding pipe, a cover is installed on the top of the feeding pipe, the feeding hopper is fixedly disposed inside the cover, the bottom of the feeding hopper is connected to the feed inlet of the screw conveyor via a connecting pipe, the discharge outlet of the screw conveyor is connected to the interior of the feeding pipe, a guide plate is installed on the inner wall of the feeding pipe below the screw conveyor, a pair of flow dividers are arranged adjacently inside the feeding pipe below the guide plate, forming three discharge ports through the pair of flow dividers; a weighing device is arranged below the pair of flow dividers.

[0006] Preferably, a fixing plate is fixedly installed on the side wall of the cover, a second motor is fixedly installed on the fixing plate, a gear is fixedly installed on the drive end of the second motor, a cover plate is slidably installed on the top of the cover, and teeth that mesh with the gear are provided at the bottom of the cover plate.

[0007] Preferably, a mounting cover is rotatably installed inside the feed pipe, the mounting cover is in contact with the side wall of the feed pipe, the weighing device is disposed on the mounting cover, and a first motor for driving the mounting cover to rotate is fixedly installed on the feed pipe.

[0008] Preferably, the weighing device is equipped with a weight sensor, which is electrically connected to the motor.

[0009] Beneficial effects This utility model provides a feeding structure for a twin-screw extruder used in masterbatch production, which has the following advantages: By installing a feed hopper, raw materials can be fed into the hopper. After entering the feed hopper, the raw materials enter the screw conveyor through a connecting pipe. By starting the screw conveyor, the raw materials are transported to the bottom of the screw conveyor. Under the action of the screw conveyor, the raw materials are transported at an appropriate speed, which effectively avoids a large amount of raw materials falling directly onto the weighing device under the action of gravity, affecting the long-term use of the weighing components. By installing a guide plate, the raw materials discharged from the screw conveyor outlet can flow along the guide plate to the diversion plate. By installing a diversion plate, the raw materials can be dispersed and flow down from different discharge ports formed on both sides of the diversion plate, so that the raw materials fall onto the weighing device for weighing. This prevents vertically falling materials from impacting the weighing device and affecting its use, thus effectively avoiding inaccurate raw material measurement and affecting the processing quality of masterbatch. Attached Figure Description

[0010] Figure 1 This is a front view of the internal structure of this utility model.

[0011] In the diagram: 1. Twin-screw extruder body; 2. Feed pipe; 3. Cover; 4. Feed hopper; 5. Connecting pipe; 6. Screw conveyor; 7. Guide plate; 8. Diverter plate; 9. Weighing device; 10. Mounting cover; 11. First motor; 12. Weight sensor; 13. Fixing plate; 14. Gear; 15. Cover plate; 16. Second motor. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Wherein, directional terms such as "upper" and "lower" mentioned herein are used in conjunction with... Figure 1 The orientation is used as a reference.

[0013] Please see Figure 1This utility model provides a technical solution: a feeding structure for a twin-screw extruder used in masterbatch production, including a twin-screw extruder body 1, a feeding pipe 2, and a feeding hopper 4; the feeding pipe 2 is installed on the twin-screw extruder body 1, a screw conveyor 6 is fixedly installed inside the feeding pipe 2, a cover 3 is installed on the top of the feeding pipe 2, the feeding hopper 4 is fixedly installed inside the cover 3, the bottom of the feeding hopper 4 is connected to the inlet of the screw conveyor 6 through a connecting pipe 5, the outlet of the screw conveyor 6 is connected to the inside of the feeding pipe 2, a guide plate 7 is installed on the inner wall of the feeding pipe 2 below the screw conveyor 6, a pair of diverter plates 8 are arranged adjacently inside the feeding pipe 2 below the guide plate 7, forming three discharge ports through the pair of diverter plates 8; a weighing device 9 is arranged below the pair of diverter plates 8.

[0014] By installing a feed hopper 4, raw materials can be fed into the feed hopper 4. After entering the feed hopper 4, the raw materials enter the screw conveyor 6 through the connecting pipe 5. By installing and starting the screw conveyor 6, the raw materials can be conveyed to the bottom of the screw conveyor 6. The raw materials can be conveyed at a suitable speed under the action of the screw conveyor 6, thereby effectively avoiding a large amount of raw materials falling directly onto the weighing device 9 under the action of gravity, which would affect the long-term use of the weighing components. By installing a guide plate 7, the raw materials discharged from the discharge port of the screw conveyor 6 can flow along the guide plate 7 to the diversion plate 8. By installing the diversion plate 8, the raw materials can be dispersed and flow down from different discharge ports formed on both sides of the diversion plate 8, so that the raw materials fall onto the weighing device 9 for weighing, preventing vertically falling materials from impacting the weighing device 9 and affecting its use. This effectively avoids inaccurate measurement of each raw material and affects the processing quality of the masterbatch.

[0015] Furthermore, a fixing plate 13 is fixedly installed on the side wall of the cover 3, a second motor 16 is fixedly installed on the fixing plate 13, a gear 14 is fixedly installed on the drive end of the second motor 16, and a cover plate 15 is slidably installed on the top of the cover 3, with teeth at the bottom of the cover plate 15 that mesh with the gear 14.

[0016] The second motor 16 can be installed on the fixing plate 13. The second motor 16 is started and driven to rotate the gear 14. The gear 14 meshes with the teeth at the bottom of the cover plate 15, which can drive the cover plate 15 to move, thereby controlling the opening and closing of the cover plate 15.

[0017] Furthermore, a mounting cover 10 is rotatably installed inside the feed pipe 2, the mounting cover 10 is in contact with the side wall of the feed pipe 2, a weighing device 9 is installed on the mounting cover 10, and a first motor 11 for driving the mounting cover 10 to rotate is fixedly installed on the feed pipe 2.

[0018] The first motor 11 is installed and started. The drive end of the first motor 11 rotates, which can drive the mounting cover 10 and the weighing device 9 to flip. After the raw material falls onto the weighing device 9 and is weighed, the mounting cover 10 and the weighing device 9 flip, which can drive the raw material to flip and enter the twin-screw extruder body 1.

[0019] Furthermore, a weight sensor 12 is installed on the weighing device 9, and the weight sensor 12 is electrically connected to the first motor 11.

[0020] Once the raw material reaches the preset weight, the first motor 11 is controlled to drive the weighing device 9 to flip. The weight sensor 12 is installed.

[0021] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0022] The working principle and usage process of this utility model are as follows: When in use, the second motor 16 is started. The drive end of the second motor 16 rotates, which drives the gear 14 to rotate. The gear 14 meshes with the teeth at the bottom of the cover plate 15, which drives the cover plate 15 to move. After the cover plate 15 is opened, the raw material is fed into the feed hopper 4. The raw material in the feed hopper 4 enters the screw conveyor 6 through the connecting pipe 5. The screw conveyor 6 is started to transport the raw material. After the raw material is transported to the bottom of the screw conveyor 6 and discharged from the discharge port, it falls along the guide plate 7 and the diverting plate 8 onto the weighing device 9 for weighing. After weighing is completed, the first motor 11 is started, which drives the mounting cover 10 and the weighing device 9 to rotate, thereby causing the raw material to rotate and enter the double screw conveyor 6 after weighing.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding structure for a twin-screw extruder used in masterbatch production, characterized in that, The system includes a twin-screw extruder body (1), a feed pipe (2), and a feed hopper (4). The feed pipe (2) is installed on the twin-screw extruder body (1). A screw conveyor (6) is fixedly installed inside the feed pipe (2). A cover (3) is installed on the top of the feed pipe (2). The feed hopper (4) is fixedly installed inside the cover (3). The bottom of the feed hopper (4) is connected to the feed inlet of the screw conveyor (6) through a connecting pipe (5). The discharge outlet of the screw conveyor (6) is connected to the inside of the feed pipe (2). A guide plate (7) is installed on the inner wall of the feed pipe (2) below the screw conveyor (6). A pair of diverter plates (8) are arranged adjacent to each other inside the feed pipe (2) below the guide plate (7). Three discharge ports are formed by the pair of diverter plates (8). A weighing device (9) is arranged below the pair of diverter plates (8).

2. The feeding structure of a twin-screw extruder for masterbatch production according to claim 1, characterized in that, A fixing plate (13) is fixedly installed on the side wall of the cover (3), a second motor (16) is fixedly installed on the fixing plate (13), a gear (14) is fixedly installed on the drive end of the second motor (16), a cover plate (15) is slidably installed on the top of the cover (3), and the bottom of the cover plate (15) is provided with teeth that mesh with the gear (14).

3. The feeding structure of a twin-screw extruder for masterbatch production according to claim 1, characterized in that, An installation cover (10) is rotatably installed inside the feed pipe (2). The installation cover (10) is in contact with the side wall of the feed pipe (2). The weighing device (9) is installed on the installation cover (10). A first motor (11) for driving the installation cover (10) to rotate is fixedly installed on the feed pipe (2).

4. The feeding structure of a twin-screw extruder for masterbatch production according to claim 3, characterized in that, The weighing device (9) is equipped with a weight sensor (12), which is electrically connected to the first motor (11).

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