Winnowing device for fiberboard processing

Abstract

The utility model relates to the field of fiberboard processing, and particularly discloses a winnowing device for fiberboard processing, which comprises an upper casing and a lower casing, a spiral conveyor and a main shaft are arranged on the left side and the right side of the upper casing, a static pressure plate is arranged at the inner end of the spiral conveyor, and a movable pressure plate is arranged at the inner end of the main shaft. The lower machine shell is provided with an air blowing fan, a partition plate, a coarse material discharging opening and a fine material discharging opening. When the raw materials sequentially pass through the static pressure plate and the movable pressure plate, the raw materials can be fully scattered under the synergistic effect of the static pressure plate and the movable pressure plate, so that the originally gathered raw materials are in a looser state. And the spiral conveyor has an accurate feeding speed regulation function, and the feeding speed can be flexibly adjusted according to actual production requirements, so that the raw materials can fall in a uniform and stable state. The uniform falling mode lays a solid foundation for subsequent effective separation of fibers with different thicknesses, and the feasibility and high efficiency of separation operation are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of fiberboard processing, especially relates to a winnowing device for fiberboard processing. BACKGROUND

[0002] The fiberboard is mainly composed of wood fiber, plant fiber and glue and other raw materials, and after careful blending, the raw materials need to be treated under high temperature and high pressure, and then pressed into shape. In the production process of fiberboard, the treatment of fiber thickness is the key factor affecting product quality. If the thick and thin fibers are not effectively separated in advance, the fiberboard produced is prone to have uneven density, which leads to the quality difficult to meet the qualified standard. After the successful separation of thick and thin fibers, different types of fibers can be accurately applied to the board structure according to their own characteristics, so as to enhance the pertinence of production and make the board quality more stable.

[0003] The existing fiberboard winnowing device on the market mainly relies on the gravity of the raw materials to make them fall naturally, and blows air through the fan arranged on the side to realize the separation of light and heavy raw materials. However, this winnowing device has obvious limitations. On the one hand, due to the lack of effective control mechanism, the equipment cannot accurately control the falling speed of the raw materials; on the other hand, in the winnowing process, different thickness of fibers are easy to mix with each other, and it is difficult to realize complete separation. Therefore, the current winnowing device has unsatisfactory screening effect, and there is still a lot of room for improvement in practical application, which needs to be further optimized and upgraded to meet the demand of fiberboard production for high-quality raw material screening. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a winnowing device for fiberboard processing which can knead raw materials.

[0005] In order to achieve the above object, the utility model provides a kind of air separation device for fiberboard processing, comprising: upper casing located above and lower casing located below.The left and right sides of the upper casing are respectively provided with screw conveyor and main shaft, the outer end of the screw conveyor is provided with motor, feed inlet, the inner end of the screw conveyor is provided with static pressure plate, the middle of the static pressure plate is open so that raw materials flow out from the end of the screw conveyor, the outer end of the main shaft is provided with speed reducer, motor, control cabinet, the inner end of the main shaft is provided with dynamic pressure plate, the main shaft rotates and drives the dynamic pressure plate to rotate, the dynamic pressure plate and the static pressure plate relatively rotate to knead the raw materials between them, and the raw materials fall out of the upper casing.The inside of the lower casing is provided with blowing fan, the raw materials fall through the blowing path of the blowing fan, the bottom of the lower casing is provided with coarse material discharge port, fine material discharge port and the partition plate separating the two discharge ports, the coarse material discharge port is located on the side close to the blowing fan, and the fine material discharge port is located on the side away from the blowing fan.

[0006] As an improvement of the above scheme, the inner side of the coarse material discharge port and the fine material discharge port is provided with a drawer corresponding to the material, and the separated raw materials fall into two different drawers, and the drawer can be pulled out from the side of the lower casing to take away the raw materials.

[0007] As an improvement of the above scheme, the bottom of the drawer is provided with a plurality of universal wheels.

[0008] As an improvement of the above scheme, the lower casing is provided with air inlet hole and air outlet hole on the front and rear sides of the blowing fan, and the air inlet hole and the air outlet hole are provided with filter screen.

[0009] As an improvement of the above scheme, the upper casing is provided with slope on both sides of the gap where the raw materials fall, for guiding the raw materials to fall in the middle.

[0010] As an improvement of the above scheme, the surfaces of the static pressure plate and the dynamic pressure plate are provided with a plurality of convex ribs, and the middle of the dynamic pressure plate is convex outward to form a cone.

[0011] The utility model has the following beneficial effects:

[0012] When the raw materials pass through the static pressure plate and the dynamic pressure plate in turn, they will be fully dispersed under the synergistic effect of the two, so that the originally gathered raw materials present a more loose state. The screw conveyor has a precise feeding speed regulation function, which can flexibly adjust the feeding speed according to the actual production needs, so as to ensure that the raw materials can fall in a uniform and stable state. This uniform falling mode lays a solid foundation for the effective separation of fibers of different thicknesses in the subsequent operation, greatly improving the feasibility and efficiency of the separation operation. After the fibers fall smoothly, the lower casing is designed as a closed chamber structure, and only air inlet holes and air outlet holes are arranged on the front and rear sides respectively. This ingenious design enables the airflow to controllably advance in the chamber according to the preset path, avoiding the disorder and disordered flow of the airflow, thereby providing a stable and suitable airflow environment for the fiber sorting process. Whether the above single scheme operates independently or the two schemes operate in combination, the sorting process can be optimized and improved from different angles, significantly improving the sorting effect, so that the thick and thin fibers can be more accurately and efficiently separated, providing high-quality raw materials for subsequent production and processing links. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a sectional view of the air separation device in an embodiment;

[0014] BRIEF DESCRIPTION OF DRAWINGS DETAILED DESCRIPTION

[0015] In the description of the present application, it should be explained that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0016] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0017] In the description of the utility model, it is to explain, unless there is definite and limited, the term "installation", "link", "connection", "arrangement" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication, for the ordinary skilled in the art, the above-mentioned term can be understood according to the specific meaning of the utility model in the specific situation. According to the overall structure of the utility model, the embodiments thereof are described below.

[0018] Referring to Figure 1 The utility model discloses a fiberboard processing is with winnowing device, include: the upper casing 11 of upper position and the lower casing 12 of lower position. The left and right sides of upper casing 11 are provided with screw conveyor 21 and main shaft 31 respectively, the outer end of screw conveyor is provided with motor, feed inlet, the inner end of screw conveyor 21 is provided with static pressure plate 22, the middle of static pressure plate 22 is open so that raw materials flow from the end of screw conveyor 21, the outer end of main shaft 31 is provided with speed reducer, motor, control cabinet 33, the inner end of main shaft 31 is provided with dynamic pressure plate 32, the dynamic pressure plate 32 is rotated when main shaft 31 rotates, the relative rotation between dynamic pressure plate 32 and static pressure plate 22 thereby rubs the raw materials located between them, and the raw materials drop out of upper casing 11. The inside of lower casing 12 is provided with blowing fan 41, the raw materials drop after the blowing path of blowing fan 41, the bottom of lower casing 12 is provided with coarse material discharge port, fine material discharge port and the partition 42 that separates two discharge ports, the coarse material discharge port is located on the side close to blowing fan 41, and the fine material discharge port is located on the side away from blowing fan 41.

[0019] In other schemes, raw materials are directly dropped into the coarse material discharge port and the fine material discharge port after winnowing, and then are removed by workers or machines, and the commonly used machine is a conveyor belt. As an improvement of the above scheme, the inner side of the coarse material discharge port and the fine material discharge port is provided with a drawer 43 corresponding to the material, and the separated raw materials fall into two different drawers 43, and the drawer 43 is pulled out from the side of the lower casing 12 to take away the raw materials.

[0020] As an improvement of the above scheme, the bottom of the drawer 43 is provided with a plurality of universal wheels. By adopting the above scheme, the drawer 43 is conveniently pulled.

[0021] As an improvement of the above scheme, the lower casing 12 is provided with air inlet holes and air outlet holes on the front and rear sides of the blowing fan respectively, and the positions of the air inlet holes and the air outlet holes are provided with filter screens. The filter screen of the air inlet hole is used to prevent foreign matter from entering the lower casing 12, and the air outlet hole is used to prevent wood dust from overflowing out of the lower casing 12.

[0022] As an improvement of the above scheme, the upper casing 11 is provided with slopes on both sides of the gap through which the raw materials fall, for guiding the raw materials to fall in the middle.

[0023] As an improvement of the above scheme, the surfaces of the static pressure plate 22 and the dynamic pressure plate 32 are provided with a plurality of raised ribs, and the design of the ribs can improve the rolling effect. The middle of the dynamic pressure plate 32 is raised outward to form a cone, and the cone at the center is used to guide the raw materials to the periphery of the dynamic pressure plate 32.

[0024] When the raw materials pass through the static pressure plate 22 and the dynamic pressure plate 32 in turn, they will be fully dispersed under the synergistic action of the two, so that the originally gathered raw materials will be in a more loose state. The screw conveyor 21 has a precise feeding speed control function, which can flexibly adjust the feeding speed according to the actual production needs, so as to ensure that the raw materials can fall in a uniform and stable state. This uniform falling mode lays a solid foundation for the subsequent effective separation of fibers of different thicknesses, greatly improving the feasibility and efficiency of the separation operation. After the fibers fall smoothly, the lower casing 12 is uniquely designed as a closed chamber structure, and only air inlet holes and air outlet holes are provided on the front and rear sides respectively. This ingenious design enables the airflow to controllably advance in the chamber according to the preset path, avoiding the disorder and disordered flow of the airflow, thereby providing a stable and suitable airflow environment for the fiber sorting process. Whether the above single scheme operates independently or the two schemes operate in combination, the sorting process can be optimized and improved from different angles, significantly improving the sorting effect, so that the coarse and fine fibers can be more accurately and efficiently separated, providing high-quality raw materials for subsequent production and processing links.

[0025] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only. These descriptions are not intended to be limiting to the precise forms disclosed. Rather, these descriptions are intended to be illustrative of the specific forms that the application might take. It will be apparent to one skilled in the art that many modifications and variations can be made to the specific exemplary embodiments without departing from the spirit and scope of the application. The specific exemplary embodiments are chosen and described to explain the principles of the application and its best mode of operation, thereby enabling others skilled in the art to best utilize the application. The scope of the application is defined by the claims and their equivalents.

Claims

1. An air separation device for fiberboard processing, characterized in that, The utility model relates to a rolling machine, including: An upper casing located above and a lower casing located below; The left and right sides of the upper casing are respectively provided with a screw conveyor and a main shaft, the outer end of the screw conveyor is provided with a motor and a feeding port, the inner end of the screw conveyor is provided with a static pressure plate, the middle of the static pressure plate is open so that raw materials flow out from the end of the screw conveyor, the outer end of the main shaft is provided with a speed reducer, a motor and a control cabinet, the inner end of the main shaft is provided with a dynamic pressure plate, the dynamic pressure plate rotates when the main shaft rotates, the dynamic pressure plate and the static pressure plate rotate relatively so as to roll and twist the raw materials located between them, and the raw materials fall out of the upper casing; The inside of the lower casing is provided with a blowing fan, the raw materials fall through the blowing path of the blowing fan, the bottom of the lower casing is provided with a coarse material discharge port, a fine material discharge port and a partition plate separating the two discharge ports, the coarse material discharge port is located near the blowing fan, and the fine material discharge port is located away from the blowing fan.

2. The air separator for processing fiberboard according to claim 1, characterized in that: The inner sides of the coarse material discharge port and the fine material discharge port are provided with drawers corresponding to the materials, the separated raw materials fall into the two different drawers, and the raw materials can be taken out by pulling out the drawers from the side of the lower casing.

3. The air separator for processing fiberboard according to claim 2, characterized in that: The bottom of the drawer is provided with a plurality of universal wheels.

4. The air separator for processing fiberboard according to claim 3, characterized in that: The lower casing is provided with an air inlet hole and an air outlet hole on the front and back sides of the blowing fan, and the positions of the air inlet hole and the air outlet hole are provided with filter screens.

5. The air separator for processing fiberboard according to claim 1, characterized in that: The upper casing is provided with slopes on the two sides of the gap through which the raw materials fall, for guiding the raw materials to fall centrally.

6. The air separator for processing fiberboard according to claim 1, characterized in that: The surfaces of the static pressure plate and the dynamic pressure plate are both provided with a plurality of convex ribs, and the middle of the dynamic pressure plate is outwardly convex to form a cone.

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