Device system for improving production efficiency and quality of chopped fiber products

Abstract

The utility model provides a device system for improving the production efficiency and quality of chopped fiber products. The device system comprises a shearing unit, a conveying unit and an automatic packaging unit which are sequentially communicated in the material flowing direction. The conveying unit comprises a first conveying device; a protection device is arranged above the first conveying device; the shearing unit is connected with the conveying unit through a first pipeline; the device system further comprises a detection unit. The detection unit comprises a fiber length detection device and a metal detection automatic removal device; and the fiber length detection device and the metal detection and automatic removal device are respectively and independently arranged at the first pipeline. Through operation modes of detection, management and control and the like of the chopped fiber production process, the possibility that metal impurities, fibers with unqualified lengths and foreign objects enter an automatic packaging unit is effectively reduced, meanwhile, floating and leakage of the fibers are avoided, and the risk of follow-up processing of aramid chopped fiber products is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chopped fiber production and packaging, and relates to a device system for improving the production efficiency and quality of chopped fiber products. Background Art

[0002] Aramid fiber (aromatic polyamide fiber) was invented in the 1960s and successfully developed and commercialized by DuPont in the United States. It can be divided into meta-aramid fiber and para-aramid fiber based on its chemical structure. Aramid paper is made from aramid chopped fibers and aramid precipitated fibers through a process of forming, pressing, drying, and heat pressing. This wet-processed aramid paper boasts a strength 5-6 times that of steel wire, a modulus 2-3 times that of steel wire or fiberglass, and a toughness twice that of steel wire, while weighing only about one-fifth as much. It neither decomposes nor melts at temperatures of 560°C. It possesses excellent mechanical properties, insulation, flame retardancy, and radiation resistance, and is used in aviation, aerospace, high-speed rail, hydropower and nuclear power, mining, automotive, shipbuilding, sports equipment, and construction.

[0003] During the aramid paper production process, the excessive length of the aramid chopped fibers can easily lead to braid aggregation during the papermaking process, resulting in poor paper uniformity and impacting mechanical and electrical properties. Furthermore, the production of aramid paper requires high temperatures and high pressures. If metal particles or other foreign matter are present in the base paper, this can cause irreversible damage to the equipment and product performance.

[0004] However, the existing technology does not take effective measures to control the preparation process of aramid chopped fibers, resulting in insufficient monitoring and control of the quality of the chopped fibers, thereby causing problems such as increased production costs, reduced product quality, environmental pollution and occupational health.

[0005] Therefore, there is an urgent need to provide a device system for monitoring and controlling the quality of the chopped fiber product production process, so as to improve the production efficiency and quality of the chopped fiber products, solve the risks of subsequent processing of the chopped fiber products, and improve the safety protection of production personnel. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a device system for improving the production efficiency and quality of chopped fiber products. By detecting and controlling the chopped fiber production process, it can effectively reduce the possibility of metal impurities, unqualified length fibers and foreign objects entering the automatic packaging unit, while avoiding fiber floating and leakage, protecting the environment and personnel health, and solving the risks of subsequent processing of chopped fiber products.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] The utility model provides a device system for improving the production efficiency and quality of short-cut fiber products, the device system comprises a shearing unit, a conveying unit and an automatic packaging unit which are sequentially connected and arranged along the material flow direction;

[0009] The conveying unit includes a first conveying device; a protective device is provided above the first conveying device;

[0010] The protective device includes a first side plate and a second side plate independently arranged on both sides of the first conveying device, and a protective cover arranged on the top of the first side plate and the second side plate;

[0011] The shearing unit is connected to the conveying unit via a first pipeline;

[0012] The device system also includes a detection unit; the detection unit includes a fiber length detection device and a metal detection automatic rejection device;

[0013] The fiber length detection device and the metal detection automatic rejection device are independently arranged on the first pipeline.

[0014] The device system provided by the utility model comprises a shearing unit, a conveying unit, and an automatic packaging unit, which are sequentially connected along the direction of material flow. A protective device is provided above the first conveying unit, ensuring the sealing of the entire device system, preventing fibers from floating and leaking and being exposed to the air, thereby protecting the health of production personnel. Furthermore, a fiber length detection device and an automatic metal detection and removal device are respectively provided at the connection between the shearing unit and the conveying unit, effectively reducing the possibility of metal impurities, unqualified length fibers, and foreign objects entering the packaging unit, thereby improving the utilization rate of chopped fiber products. By detecting, controlling, and other operational methods during the chopped fiber production process, the defective rate of chopped fibers is effectively reduced, while protecting the environment and personnel health. Furthermore, the risks of subsequent processing of aramid chopped fiber products are resolved, reducing production costs and equipment costs in the subsequent aramid paper production process.

[0015] As a preferred technical solution of the present invention, the shearing unit includes an operating platform, a cutting device and a lifting hopper which are connected in sequence.

[0016] In the utility model, para-position (meta-position) aramid straight yarn is selected as the processing object, and after the aramid straight yarn is cut, it is dropped to the conveying unit through the lifting hopper.

[0017] As a preferred technical solution of the present invention, the protective covers are arranged perpendicular to the first side plate and the second side plate.

[0018] As a preferred technical solution of the present invention, the first pipe is a transparent plastic-steel pipe.

[0019] As a preferred technical solution of the present invention, the angle between the lifting hopper and the first conveying device is less than 90°, for example, it can be 87°, 85°, 82°, 80°, 77°, 75°, 72°, 70°, 67°, 65°, 62° or 60°, etc., but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0020] In the present invention, in order to save the floor space of the device system, the first conveying device adopts a loading method to convey the material to the automatic packaging unit.

[0021] As a preferred technical solution of the present invention, the automatic packaging unit includes a quantitative packaging device, a bag sewing machine and a second conveying device connected in sequence.

[0022] In the present invention, the automatic packaging unit is provided with a quantitative packaging device and a bag sewing machine, which can realize the functions of automatic bag opening, weighing and bag sewing, which not only improves production efficiency and capacity, but also saves labor.

[0023] As a preferred technical solution of the present invention, the conveying unit is connected to the automatic packaging unit through a second pipeline.

[0024] A soft baffle is provided at the second pipeline.

[0025] In the utility model, a soft baffle is provided at the connection between the conveying unit and the automatic packaging unit, thereby preventing the chopped fibers from adhering to the first conveying device and reducing the production efficiency.

[0026] As a preferred technical solution of the present invention, the fiber length detection device includes a fiber length detection device based on machine vision.

[0027] In the utility model, the fiber length detection device based on machine vision is compared with the single-channel fiber length measurement device of the light intensity type photoelectric detection system, which has the characteristics of fast detection speed, high repeatability of detection length index results and strong stability of detection results.

[0028] The fiber length detection device is used to detect the length of the chopped fibers and send the chopped fibers of unqualified length to the unqualified product storage area.

[0029] In the present invention, the short-cut fibers of unqualified length include super-long fibers and very short fibers, and the specific length setting is set according to production needs.

[0030] As a preferred technical solution of the present invention, the device system also includes a control unit.

[0031] The control unit is independently connected to the cutting unit, the conveying unit, the automatic packaging unit and the detection unit through signals.

[0032] In the utility model, the conveying and packaging process of the cut fibers is monitored by the control unit, and the operation of the detection unit is controlled.

[0033] As a preferred technical solution of the present invention, the chopped fiber product includes an aramid chopped fiber product.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] (1) The device system provided by the present invention is provided with a protective device above the first conveying device, which realizes the sealing of the entire device system, prevents the fibers from floating and leaking, and being exposed to the air, thereby preventing the production personnel from inhaling the fibers into the respiratory tract; at the same time, a fiber length detection device and a metal detection automatic rejection device are respectively provided at the connection between the shearing unit and the conveying unit, which effectively reduces the possibility of metal impurities, unqualified length fibers and foreign objects entering the automatic packaging unit, thereby improving the utilization rate of the chopped fiber products; by detecting, controlling and other operating methods of the chopped fiber production process, the defective rate of the chopped fibers is effectively reduced, while protecting the environment and personnel health, and reducing the production cost and equipment cost in the subsequent aramid paper production process, thereby increasing the competitiveness of the product;

[0036] (2) The device system provided by the utility model has a high degree of automation, reduces manual operation, improves work efficiency and enhances product precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic structural diagram of the device system for improving the production efficiency and quality of chopped fiber products provided in Example 1;

[0038] Among them, 1-operating platform, 2-cutting device, 3-lifting hopper, 4-first conveying device, 5-protective device, 6-first pipeline, 7-fiber length detection device, 8-metal detection automatic rejection device, 9-second pipeline, 10-quantitative packaging device, 11-bag sewing machine, 12-second conveying device. DETAILED DESCRIPTION

[0039] It should be understood that, in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0040] It should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0042] Example 1

[0043] This embodiment provides a device system (such as Figure 1 As shown), the device system includes a shearing unit, a conveying unit and an automatic packaging unit that are sequentially connected and arranged along the material flow direction;

[0044] The shearing unit comprises an operating platform 1, a cutting device 2 and a lifting hopper 3 which are connected in sequence;

[0045] The conveying unit includes a first conveying device 4; a protective device 5 is provided above the first conveying device 4; the protective device 5 includes a first side plate and a second side plate independently provided on both sides of the first conveying device 4, and a protective cover provided on top of the first side plate and the second side plate; the protective cover is provided perpendicularly to the first side plate and the second side plate;

[0046] The lifting hopper 3 is connected to the first conveying device 4 through a first pipe 6; the angle between the lifting hopper 3 and the first conveying device 4 is 65°;

[0047] The automatic packaging unit includes a quantitative packaging device 10, a bag sewing machine 11 and a second conveying device 12 connected in sequence;

[0048] The first conveying device 4 is connected to the quantitative packaging device 10 via a second pipe 9; a soft baffle is provided at the second pipe;

[0049] The device system also includes a detection unit; the detection unit includes a fiber length detection device 7 and a metal detection automatic rejection device 8;

[0050] The fiber length detection device 7 and the metal detection automatic rejection device 8 are independently arranged on the first pipeline 6.

[0051] Example 2

[0052] This embodiment provides a device system for improving the production efficiency and quality of chopped fiber products. Based on Example 1, it is further defined that: the fiber length detection device is a fiber length detection device based on machine vision; the fiber length detection device is used to detect the length of the chopped fibers and send the chopped fibers of unqualified length to the unqualified product storage area.

[0053] When the device system provided in this embodiment is used for the production of short-cut fiber products, compared with the single-channel fiber length measurement device of the light intensity type photoelectric detection system, it has the advantages of fast detection speed, high repeatability of detection length index results and strong stability of detection results.

[0054] Example 3

[0055] This embodiment provides a device system for improving the production efficiency and quality of chopped fiber products, and further defines, based on Example 1, that: the device system also includes a control unit; the control unit is independently connected to the cutting unit, the conveying unit, the automatic packaging unit and the detection unit through signals.

[0056] When the device system provided in this embodiment is used in the production of chopped fiber products, it is convenient to monitor the transportation and packaging process of the cut fibers and control the operation of the detection unit.

[0057] Comparative Example 1

[0058] This comparative example provides a device system for producing a chopped fiber product. Except that the protective device and the detection unit are not provided, other conditions are the same as those in Example 1.

[0059] The device systems provided in Example 1 and Comparative Example 1 were used to process chopped fibers using aramid straight yarns. The production speeds during the chopped fiber processing were controlled to be 10 m / min, 20 m / min, 50 m / min, and 100 m / min, respectively. Data such as material loss, foreign matter contamination, and the proportion of fiber floating matter during the chopped fiber processing were recorded. The results are shown in Table 1.

[0060] Table 1

[0061]

[0062] From Table 1 we can see that:

[0063] The device system provided by the utility model adds a protective device above the first conveying device, and is combined with a fiber length detection device and a metal detection automatic rejection device respectively provided at the connection between the shearing unit and the conveying unit. It can effectively reduce the possibility of metal impurities, unqualified length fibers and foreign objects entering the automatic packaging unit at different production speeds, thereby improving the utilization rate of short-cut fiber products, reducing material loss, saving labor, protecting the environment and personnel health; and solving the risk of subsequent processing of aramid short-cut fiber products, reducing production costs and equipment costs in the subsequent aramid paper production process.

[0064] The applicant declares that the above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by technicians in the relevant technical field within the technical scope disclosed in the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. A device system for improving the production efficiency and quality of chopped fiber products, characterized in that the device system includes a shearing unit, a conveying unit, and an automatic packaging unit arranged in sequence along the material flow direction; The conveying unit includes a first conveying device; a protective device is provided above the first conveying device; The protective device includes a first side plate and a second side plate independently arranged on both sides of the first conveying device, and a protective cover arranged on the top of the first side plate and the second side plate; The shearing unit is connected to the conveying unit via a first pipeline; The device system also includes a detection unit; the detection unit includes a fiber length detection device and a metal detection automatic rejection device; The fiber length detection device and the metal detection automatic rejection device are independently arranged on the first pipeline.

2. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1 is characterized in that the shearing unit includes an operating platform, a cutting device and a lifting hopper that are connected in sequence.

3. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1, characterized in that the protective covers are arranged perpendicular to the first side plate and the second side plate.

4. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1, characterized in that the first pipe is a transparent plastic steel pipe.

5. The device system for improving the production efficiency and quality of chopped fiber products according to claim 2, characterized in that the angle between the lifting hopper and the first conveying device is less than 90°.

6. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1, characterized in that the automatic packaging unit includes a quantitative packaging device, a bag sewing machine and a second conveying device connected in sequence.

7. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1, wherein the conveying unit is connected to the automatic packaging unit via a second pipe; A soft baffle is provided at the second pipeline.

8. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1, wherein the fiber length detection device comprises a fiber length detection device based on machine vision; The fiber length detection device is used to detect the length of the chopped fibers and send the chopped fibers of unqualified length to the unqualified product storage area.

9. The device system for improving the production efficiency and quality of chopped fiber products according to claim 1, characterized in that the device system further comprises a control unit; The control unit is independently connected to the cutting unit, the conveying unit, the automatic packaging unit and the detection unit through signals. 10 . The device system for improving the production efficiency and quality of chopped fiber products according to claim 1 , wherein the chopped fiber products comprise aramid chopped fiber products.

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