Preparation device of low-odor talc master batch

Abstract

The utility model relates to the technical field of master batches, and provides a preparation device of low-odor talc master batches, which comprises a controller, a rack, a conveying pipeline, a driving mechanism, a first conveying screw rod, a second conveying screw rod and more than one group of exhaust mechanisms, the other end of the exhaust pipeline penetrates into the hollow inner cavity of the conveying pipeline and communicates with exhaust ports of exhaust grooves formed in the inner wall of the conveying pipeline, the exhaust grooves of all the exhaust mechanisms are evenly distributed in the material conveying direction of the conveying pipeline, and a plurality of air inlets are evenly distributed in the faces, facing materials, of the exhaust grooves of all the exhaust mechanisms. The screw pitches of the conveying threads of the first conveying screw comprise multiple screw pitches which are arranged from large to small in the material conveying direction, and the rotating directions of the first conveying screw and the second conveying screw are different. The utility model solves the problem that the existing talc master batch material contains pungent or peculiar smell gas, so that the talc master batch has heavy smell.

Description

Technical Field

[0001] The utility model relates to the technical field of masterbatch preparation, in particular to a preparation device for a low-odor talc masterbatch. Background Art

[0002] Talc masterbatch is a plastic modification filler, which mainly consists of talcum powder and is formed by mixing and granulating with polymers or other carriers. It is mainly used to improve the properties of rubber, plastic, resin, etc., and can significantly improve the rigidity, high-temperature creep resistance, heat resistance and other properties of the filled resin.

[0003] In the process of preparing talc masterbatch, operations such as extruding the masterbatch are required, and to achieve the above functions, a screw extruder is needed. In the existing talc masterbatch preparation device, generally, a screw drives the masterbatch material to be extruded and conveyed to discharge a small part of the gas. However, some masterbatches will produce pungent or odorous gases after modification. The pungent or odorous gases are mixed with the masterbatch, making the masterbatch have an odor and affecting subsequent processing and production. Therefore, a preparation device for a low-odor talc masterbatch is needed to solve the above problems. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model provides a preparation device for a low-odor talc masterbatch with a simple and reasonable structure, which can reduce the pungent or odorous gases contained in the masterbatch material and improve the density of the masterbatch material.

[0005] To solve this technical problem, the utility model adopts the following scheme: A preparation device for a low-odor talc masterbatch includes a controller, a frame, a conveying pipeline, a driving mechanism, a first conveying screw and a second conveying screw; the first conveying screw and the second conveying screw are rotatably arranged in parallel in the hollow inner cavity of the conveying pipeline, the driving mechanism is arranged on the frame, and the output end of the driving mechanism is connected to and drives the first conveying screw and the second conveying screw to rotate and convey materials; it further includes more than one set of exhaust mechanisms, each exhaust mechanism includes an air extraction pump, an air extraction pipeline and an exhaust groove, the air extraction port of the air extraction pump is connected to one end of the air extraction pipeline, the other end of the air extraction pipeline penetrates into the hollow inner cavity of the conveying pipeline and is connected to the exhaust port of the exhaust groove arranged on the inner wall of the conveying pipeline, the exhaust grooves of each set of exhaust mechanisms are evenly distributed along the material conveying direction of the conveying pipeline, and a plurality of air inlet openings are evenly arranged on the surface of each exhaust groove facing the material. The pitch of the conveying thread of the first conveying screw includes multiple pitches, and various pitches are arranged from large to small along the material conveying direction. The pitch of the conveying thread of the second conveying screw includes multiple pitches, and various pitches are arranged from large to small along the material conveying direction. The rotation directions of the first conveying screw and the second conveying screw are different.

[0006] Further improvement: The air extraction pump is a vacuum pump, and a breathable interception net is provided on the exhaust groove at each air inlet.

[0007] Further improvement: The driving mechanism includes two driving units, and the output ends of the two driving units are respectively connected to drive the first conveying screw and the second conveying screw to rotate.

[0008] Even further improvement: The driving unit is a rotary motor or a servo mechanism.

[0009] Further improvement: The driving mechanism includes a motor, a first gear, and a second gear. The first gear and the second gear are respectively sleeved on the first screw main shaft of the first conveying screw and the second screw main shaft of the second conveying screw, and the first gear and the second gear are meshed with each other. The output end of the motor is connected to drive the first gear and then drive the second gear to rotate, or the output end of the motor is connected to drive the second gear and then drive the first gear to rotate.

[0010] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are as follows: By setting that the pitches of the conveying threads of the first conveying screw include multiple pitches and various pitches are arranged from large to small along the material conveying direction, and the pitches of the conveying threads of the second conveying screw include multiple pitches and various pitches are arranged from large to small along the material conveying direction, when the talc masterbatch material is fed to different pitches of each section, the space is squeezed due to the decrease of the screw tooth spacing, so that the masterbatch material is extruded at multiple angles to expel air; The setting of multiple pitches for the conveying threads of each section on the first conveying screw and the conveying threads of each section on the second conveying screw enables the masterbatch material to be gradually extruded, making it easier to efficiently discharge the air contained therein. At the same time, by setting an exhaust mechanism, the vacuum pump extracts the pungent or odorous gas contained in the masterbatch material through the exhaust groove via the air extraction pipeline. The gas contained in the masterbatch material is removed by both extraction and extrusion, thereby effectively reducing the pungent or odorous gas contained in the masterbatch material and increasing the density of the masterbatch material. The structure is simple and can be widely promoted and applied. Description of the Drawings

[0011] Figure 1 is a partial three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0012] Figure 2 is Figure 1 the enlarged structural schematic diagram of part A of Detailed Embodiment

[0013] The present utility model will be further described in conjunction with the accompanying drawings and specific embodiments. The innovative design of the present utility model lies in adding air exhaust at the end of the masterbatch material preparation production line to increase the density of the masterbatch material, making it a low-shrinkage talc masterbatch. Therefore, the existing preparation structure of the talc masterbatch will not be described, and only the innovative design part of the present utility model will be described in detail.

[0014] Reference Figure 1 and Figure 2 , preferably, the preparation device of the low-odor talc masterbatch of the present utility model includes a controller, a frame 1, a conveying pipeline 2, a driving mechanism, a first conveying screw 4, a second conveying screw 5, and two groups of exhaust mechanisms. The conveying pipeline 2 and the two groups of exhaust mechanisms are both arranged on the frame 1. The exhaust mechanism includes an air extraction pump 61, an air extraction pipeline 62, and an exhaust groove 63. The air extraction pump 61 is a vacuum pump. The air extraction port of the air extraction pump 61 is connected to one end of the air extraction pipeline 62, and the other end of the air extraction pipeline 62 penetrates into the hollow inner cavity of the conveying pipeline 2 and is connected to the exhaust port of the exhaust groove 63 arranged on the inner wall of the conveying pipeline 2. The exhaust grooves 63 of each group of exhaust mechanisms are evenly distributed along the material conveying direction of the conveying pipeline 2. A plurality of air inlet ports 631 are evenly arranged on the surface of each exhaust groove 63 facing the material. A breathable interception net 632 is arranged on each air inlet port 631 on the exhaust groove 63. The first conveying screw 4 and the second conveying screw 5 are rotatably arranged in parallel in the hollow inner cavity of the conveying pipeline 2. The driving mechanism is arranged on the frame 1, and the output end of the driving mechanism is connected to and drives the first conveying screw 4 and the second conveying screw 5 to rotate and convey materials. An inlet hopper 7 is arranged at the feeding end of the conveying pipeline 2. The inlet hopper 7 is used to connect with the masterbatch finished product discharge port at the end of the masterbatch material preparation production line. A discharge port 21 is arranged at the lower part of the discharge end of the conveying pipeline 2. The pitches of the conveying threads of each section of the first conveying screw 4 include five pitches of 144, 96, 72, 56, and 28, and various pitches are arranged in descending order along the material conveying direction. The pitches of the conveying threads of each section of the second conveying screw 5 include five pitches of 144, 96, 72, 56, and 28, and various pitches are arranged in descending order along the material conveying direction. The rotation directions of the first conveying screw 4 and the second conveying screw 5 are different. The driving mechanism includes a motor, a first gear 31, and a second gear 32. The first gear 31 and the second gear 32 are respectively sleeved on the first conveying screw 4 and the second conveying screw 5, and the first gear 31 and the second gear 32 are meshed with each other. The output end of the motor is connected to and drives the first gear 31, and then drives the second gear 32 to rotate. The motor of the driving mechanism and the air extraction pumps 61 of each group of exhaust mechanisms are both connected to and controlled by the controller.

[0015] In the above embodiments, the number of exhaust mechanisms can be increased or decreased according to the length requirements of the conveying pipeline. The pitches of the conveying threads on each section of the first conveying screw can be freely set according to different requirements of equipment models, etc., and only need to be arranged in a decreasing order along the material conveying direction. The pitches of the conveying threads on each section of the second conveying screw can be freely set according to different requirements of equipment models, etc., and only need to be arranged in a decreasing order along the material conveying direction. In the above driving mechanism, a motor output end can also be connected to drive the second gear and then drive the first gear to rotate. At the same time, the driving mechanism can also be set into two driving units. The output ends of the two driving units are respectively connected to drive the first conveying screw and the second conveying screw to rotate, and the rotation directions of the first conveying screw and the second conveying screw driven by the two driving units are opposite. The driving unit is a rotary motor or a servo mechanism.

[0016] Although the present invention is specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them are within the protection scope of the present invention.

Claims

1. A preparation device for low-odor talc masterbatch, comprising a controller, a frame, a conveying pipeline, a driving mechanism, a first conveying screw and a second conveying screw; the first conveying screw and the second conveying screw are rotatably and parallelly arranged in the hollow inner cavity of the conveying pipeline, the driving mechanism is arranged on the frame and the output end of the driving mechanism is connected to and drives the first conveying screw and the second conveying screw to rotate and convey materials; characterized in that: The air intake pipe is connected with the air intake port of the air pump, and the air intake port of the air pump is connected with one end of the air intake pipe, and the other end of the air intake pipe is inserted into the hollow inner cavity of the conveying pipe and communicated with the air intake port of the air intake pipe arranged on the inner wall of the conveying pipe. The air intake grooves of each group of air intake mechanisms are evenly distributed along the material conveying direction of the conveying pipe, and a plurality of air inlets are evenly distributed on the side of the air intake grooves of each group of air intake mechanisms facing the material. The pitch of the conveying thread of the first conveying screw includes a plurality of pitches, and the various pitches are arranged from large to small along the material conveying direction. The pitch of the conveying thread of the second conveying screw includes a plurality of pitches, and the various pitches are arranged from large to small along the material conveying direction. The first conveying screw and the second conveying screw have different rotation directions.

2. The preparation device of low-odor talc masterbatch according to claim 1, characterized in that: The air pump is a vacuum pump, and each air inlet on the exhaust groove is provided with an air-permeable intercepting net.

3. The preparation device of low-odor talc masterbatch according to claim 1, characterized in that: The driving mechanism comprises two driving units, and the output ends of the two driving units are respectively connected to and drive the first conveying screw and the second conveying screw to rotate.

4. The preparation device of low-odor talc masterbatch according to claim 3, characterized in that: The driving unit is a rotary motor or a servo mechanism.

5. The preparation device of low-odor talc masterbatch according to claim 1, characterized in that: The driving mechanism includes a motor, a first gear and a second gear. The first gear and the second gear are respectively sleeved on the first screw main shaft of the first conveying screw and the second screw main shaft of the second conveying screw, and the first gear and the second gear are meshed with each other. The output end of the motor is connected to and drives the first gear and then drives the second gear to rotate, or the output end of the motor is connected to and drives the second gear and then drives the first gear to rotate.

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