In-situ absorption device for bundled short-cut knife carbon fiber dust

Abstract

The utility model discloses a utility model discloses a kind of carbon fiber dust in situ absorption devices of cluster short cutting knife, including tool rest, blade, absorption box, air pipe, hose, metal filter screen, collection bin, cylinder and bolt;Blade is detachably connected with tool rest by bolt, absorption box is integrally formed with blade and symmetrically distributed in the both sides of blade, absorption box both ends connect air pipe and are gathered into main pipe, main pipe is connected with the collection bin of negative pressure state by hose, metal filter screen is equipped in collection bin.The utility model is by "the blade and absorption box integration" to realize dust in situ absorption, hose flexible connection avoids interference tool operation, collection bin can be unified to process dust, greatly reduce dust escape rate, improve production efficiency, applicable to various cluster carbon fiber short cutting processing scene.

Description

Technical Field

[0001] This utility model relates to the technical field of bundled carbon fiber production equipment, and in particular to an in-situ absorption device for carbon fiber dust from a bundled short-cut blade. Background Technology

[0002] In the field of stubbed carbon fiber processing, the stubbed cutter is the core processing component. It cuts continuous carbon fiber bundles through reciprocating motion to obtain stubbed carbon fibers of a specified length. However, a large amount of fine (usually 5-50μm) and lightweight carbon fiber dust is generated during the cutting process. This type of dust has strong suspension and adsorption properties. Due to the conductivity of carbon fiber itself, it is easy to adhere to the surface of the equipment, the blade edge, or drift into the air of the workshop due to static electricity, which brings multiple technical pain points and production hazards. The existing technology still lacks an effective solution to this problem. The specific problems are as follows: (1) Low dust collection efficiency. Most of the existing dust absorption devices are "independent external" structures. The air inlet is usually set next to the stubbed cutter frame or above the processing area. Since the carbon fiber dust is light, it diffuses under the airflow disturbance of the cutting production, resulting in low collection rate; (2) Low integration and poor adaptability. In the existing technology, the dust collection component and the stubbed cutter are designed independently. An additional collection device needs to be added to the stubbed cutter, which not only increases the cost of equipment modification, but also takes up space and is not easy to operate.

[0003] Therefore, it is of great significance to study an in-situ absorption device for bundled short-cut carbon fiber dust to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an in-situ absorption device for bundled short-cut carbon fiber dust, which solves one or more of the problems mentioned above in the prior art.

[0005] This utility model provides an in-situ absorption device for bundled short-cut carbon fiber dust, comprising: a blade holder, blades, an absorption box, an air pipe, a flexible hose, a metal filter, a collection chamber, a cylinder, and bolts. The structure and connection relationship of each component are as follows:

[0006] Connection between the blade holder and the blade: The blade is detachably and fixedly connected to the blade holder by bolts. 2-4 sets of bolts are arranged at intervals along the length of the blade, with 2 bolts in each set, to ensure that the blade and the blade holder fit firmly and securely, to prevent the blade from shifting during the cutting process, and to facilitate quick replacement of the blade after it wears out.

[0007] Integration of the absorption box and the blade: The absorption box is a hollow, elongated structure with a U-shaped cross-section, and the opening faces the cutting edge of the blade (the opening width is 10-20mm, adapted to the blade edge thickness); the absorption box and the blade are manufactured using a one-piece metal forming process (the material is wear-resistant stainless steel to avoid wear from long-term use), and the absorption boxes are symmetrically distributed on both sides of the blade's length direction. The length of the absorption box is the same as the length of the blade, ensuring that the dust generated during cutting can enter the absorption box simultaneously from both sides of the blade, with no dust escape gaps;

[0008] Connection between the air tube and the absorption box: Each end of the absorption box is integrally formed with one end of an air tube to prevent dust leakage, that is, the two sets of absorption boxes are connected to a total of 4 air tubes; the other ends of the 4 air tubes converge towards the side of the blade and are sealed to one end of a main pipe through a T-connector to form a centralized air guide channel (the inner diameter of the main pipe is 15-25mm to ensure smooth airflow and avoid dust accumulation in the pipe).

[0009] Flexible connection and docking with the collection chamber: The other end of the main pipe is detachably and sealed to one end of the hose (using a quick-connect air hose connector for easy disassembly and maintenance). The hose is made of wear-resistant rubber (3-5mm thick, with a certain degree of toughness, and can bend and deform with the movement of the blade), and its length is 500-800mm. It can flexibly deform with the movement of the blade to avoid interfering with the height adjustment or small movement of the blade. The other end of the hose is sealed to the air inlet of the collection chamber.

[0010] The dust filtration structure of the collection chamber: The collection chamber is a hollow cavity with an open top and a volume of 3-10L. A metal filter screen is detachably and fixedly installed inside the chamber via a slot. The metal filter screen has a mesh size of 100-120 (made of 304 stainless steel with anti-static properties) and is set perpendicular to the air inlet direction of the collection chamber to ensure that the dust is completely filtered. The air outlet of the collection chamber is connected to a negative pressure fan (not shown in the figure) to maintain a negative pressure state inside the collection chamber (the negative pressure value is -0.02 to -0.05MPa, ensuring that the dust enters the collection chamber smoothly under the airflow).

[0011] Auxiliary adjustment of the cylinder: The cylinder body is fixedly connected to the external frame through a bracket. The end of the piston rod of the cylinder is hinged to the side wall of the blade holder. The height of the blade holder can be adjusted by the extension and retraction of the cylinder, thereby adjusting the cutting position of the blade. The hinge structure of the piston rod can be adapted to the small angle adjustment of the blade holder without affecting the dust absorption function of the absorption box.

[0012] By integrating the blade and the absorption box, dust can be absorbed in situ. The flexible connection of the hose avoids interference with the blade operation. The collection chamber can handle dust in a unified manner, which greatly reduces the dust escape rate and improves production efficiency. It is suitable for various short-cut processing scenarios of bundled carbon fiber.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) In-situ high-efficiency absorption of carbon fiber dust effectively avoids carbon fiber dust pollution of the workshop environment;

[0015] (2) Dust absorption is achieved through a hose connection to ensure the short cutter works normally and does not affect the short cut effect;

[0016] (3) It is highly integrated and can be adapted to different models of short cutters. Only the length of the absorption box needs to be adjusted to match the blade, which reduces the cost of equipment modification and has strong versatility. Attached Figure Description

[0017] Figure 1 This is a front view of the in-situ absorption device for bundled short-cut carbon fiber dust of this utility model;

[0018] Figure 2 This is a schematic diagram of the tool holder and the cutting tool.

[0019] Among them, 1-blade holder, 2-blade, 3-absorption box, 4-air tube, 5-hose, 6-metal filter screen, 7-collection chamber, 8-cylinder, 9-bolt. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] like Figure 1As shown, a bundled short-cut carbon fiber dust in-situ absorption device is disclosed. The blade 2 is detachably fixed to the blade holder 1 by bolts 9, which are spaced apart along the length of the blade 2. The blade 2 and the absorption box 3 are integrated into one device. The absorption box 3 is a hollow elongated structure, symmetrically distributed on both sides of the blade 2 along its length, with the opening of the absorption box 3 facing the cutting edge of the blade 2. There is one absorption box 3 on each of the upper and lower sides of the blade 2. The cross-section of the absorption box 3 is a "U"-shaped structure with a "U"-shaped opening width of 10-20mm. The material is 304 stainless steel, and the length of the absorption box 3 is the same as the length of the blade 2. The air pipe 4 has a diameter of 15-25mm and is made of stainless steel. There are air pipes on both sides of the blade 2 connected to the absorption box. The two air pipes on the same side are connected to the same air pipe through a tee. In pipe 4, the left and right air pipes 4 are connected to the collection chamber 7 via flexible hoses 5; the flexible hoses 5 are made of oil-resistant and wear-resistant rubber, with a thickness of 3-5mm, an inner diameter of 20mm, and a length of 500-800mm, and both ends are connected to the main pipe and the air inlet of the collection chamber 7 respectively via quick-connect clamp air pipe connectors; the metal filter screen 6 is made of 304 stainless steel, with a mesh size of 100-120, and is fixed inside the collection chamber 7 by a slot, and the metal filter screen 6 is set perpendicular to the air inlet direction of the collection chamber 7; the volume of the collection chamber 7 is 3-10L, and the air outlet is connected to a negative pressure fan to maintain the negative pressure value in the collection chamber 7 at -0.02~-0.05MPa; the bolts 9 are M6 hexagonal socket head cap bolts, with 2-4 groups of 2 bolts each, arranged along the length of the blade 2, to fix the blade to the blade holder.

[0023] During operation, the short cutter and negative pressure fan are started. The cylinder 8 extends and retracts, causing the cutter holder 1 to adjust to the specified cutting height. The dust generated by the blade 2 cutting the carbon fiber bundles is drawn into the absorption box 3 through the opening of the absorption box 3 under the negative pressure of the collection chamber 7. It is then sucked into the collection chamber 7 through the air pipe 4 and the hose 5 in sequence. The dust is intercepted by the metal filter screen 6 in the collection chamber 7, and the clean airflow is discharged from the air outlet of the collection chamber 7. After the production shift ends, the equipment is turned off, the quick-connect connector between the hose 5 and the collection chamber 7 is loosened, the collection chamber 7 is removed, the top opening is opened, and the metal filter screen 6 is removed through the slot. After emptying the filtered dust, the filter screen is cleaned and reassembled before the next production shift.

[0024] In summary, the in-situ absorption device for bundled short-cut carbon fiber dust provided by this utility model has the following advantages:

[0025] (1) In-situ efficient absorption of carbon fiber dust effectively avoids carbon fiber dust pollution of the workshop environment.

[0026] (2) Dust absorption is achieved through a hose connection to ensure the short cutter works normally and does not affect the short cut effect;

[0027] (3) It is highly integrated and can be adapted to different models of short cutters. Only the length of the absorption box needs to be adjusted to match the blade, which reduces the cost of equipment modification and has strong versatility.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A bundled short-cut carbon fiber dust in-situ absorption device, characterized in that, include: Knife holder(1); Blade (2), which is detachably connected to the blade holder (1); Absorption box (3), the absorption box (3) is symmetrically distributed on both sides of the blade (2) along its length, and the opening of the absorption box (3) faces the cutting edge of the blade (2); Each of the absorption boxes (3) is connected to an air pipe (4) at both ends. All the air pipes (4) converge toward the side of the blade (2) and are connected to a main pipe through a three-way connector. The main pipe is sealed to the air inlet of the collection chamber (7) through a hose (5). The collection chamber (7) is equipped with a metal filter screen (6), and the air outlet of the collection chamber (7) is connected to a negative pressure fan to maintain a negative pressure state inside the collection chamber (7). Cylinder (8) that is fixedly connected to an external frame.

2. The in-situ absorption device for bundled short-cut carbon fiber dust according to claim 1, characterized in that, The blade (2) and the blade holder (1) are detachably connected by bolts (9), and the bolts (9) are spaced apart along the length of the blade (2).

3. The in-situ dust absorption device for bundled short-cut carbon fiber as described in claim 1, characterized in that, The absorption box (3) is a hollow strip structure and is integrally formed with the blade (2).

4. The in-situ absorption device for bundled short-cut carbon fiber dust according to claim 3, characterized in that, The absorption box (3) has a U-shaped cross-section and an opening width of 10-20mm. The length of the absorption box (3) is the same as the length of the blade (2).

5. The in-situ absorption device for bundled short-cut carbon fiber dust according to claim 1, characterized in that, The trachea (4) and the absorption box (3) are integrally formed; the inner diameter of the trachea is 15-25mm.

6. The in-situ absorption device for bundled short-cut carbon fiber dust according to claim 1, characterized in that, The hose (5) is made of wear-resistant rubber with a thickness of 3-5mm and a length of 500-800mm; the hose (5) is connected to the main pipe and the collection chamber (7) through quick-connect air pipe connectors.

7. The in-situ dust absorption device for bundled short-cut carbon fiber as described in claim 1, characterized in that, The metal filter (6) has a mesh size of 100-120 and is made of stainless steel. The metal filter (6) is detachably connected to the collection chamber (7) via a slot, and the metal filter (6) is set perpendicular to the air intake direction of the collection chamber (7).

8. The in-situ absorption device for bundled short-cut carbon fiber dust according to claim 1, characterized in that, The collection chamber (7) is a hollow cavity with an open top and a volume of 3-10L; the negative pressure inside the collection chamber (7) is -0.02 to -0.05MPa.

9. The in-situ absorption device for bundled short-cut carbon fiber dust according to claim 2, characterized in that, The bolts (9) are arranged in 2-4 groups along the length of the blade (2), with 2 bolts in each group, to fix the blade to the blade holder.

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