Automatic waste recovery and dust removal device of carding machine

Abstract

The invention discloses an automatic waste recovery and dust removal device of a carding machine, which comprises a three-way pipe, a filter fiber barrel, a machine shell, a suction cover, an air exchange mechanism, a material pressing mechanism, a dust filtration assembly and a controller, and the filter fiber barrel, the suction cover and the material pressing mechanism are respectively connected into the three-way pipe; the air exchange mechanism can extract air from the machine shell internally provided with the filter fiber barrel so that the filter fiber barrel can filter out short fibers from dust-fiber-containing gas sucked by the air extraction cover, and the material pressing mechanism can utilize a pressing plate moving along a barrel body channel in the filter fiber barrel to extrude the collected short fibers. The controller is electrically connected with the air exchange mechanism and the material pressing mechanism, the structure is simple, the orientation adaptability is good, the recycling efficiency is high, operation and maintenance are convenient and fast, the actual requirements for cost reduction, efficiency improvement and production safety guarantee of textile enterprises can be met, and the practicability is high. And the method has remarkable practical value and popularization significance.

Description

Technical Field

[0001] This invention relates to the technical field of carding machines, and in particular to the technical field of recycling and re-carding waste materials from carding machines. Background Technology

[0002] In the fiber processing stage of the textile industry, the carding machine, as one of the core pieces of equipment, primarily functions to comb, remove impurities, and even out fibers, thereby providing qualified fiber raw materials for subsequent spinning processes. However, during normal operation, the carding machine inevitably generates a large amount of short fiber waste. If these short fibers are not recycled in time, it will not only cause serious waste of raw materials and increase production costs, but will also remain suspended in the air of the production workshop, posing a threat to the respiratory health of operators. Furthermore, they may adhere to the surfaces of key components such as the rollers and cylinders of the carding machine, affecting the combing accuracy and operational stability of the equipment, and even causing equipment failure. Therefore, the efficient recycling of carding machine waste has become an important requirement for textile enterprises to achieve cost reduction and efficiency improvement and ensure production safety.

[0003] To address the aforementioned issues, various waste recycling devices for carding machines (or similar combing equipment) have emerged in the prior art. However, these devices still have significant shortcomings in practical applications, making it difficult to meet the needs of efficient and convenient recycling in production scenarios. Invention CN105239214B discloses a short flax fiber recycling system that can achieve the recycling of short flax fibers and dust through the cooperation of multiple combing units, dust removal units, condensers, and balers. However, this recycling system suffers from poor matching between processing units and equipment (it adopts a centralized processing mode of "one condenser corresponding to multiple combing units"), making it unable to target and independently process waste from a single combing machine. The recycling and dust removal system is problematic. (When a combing machine needs to be shut down for maintenance or adjustment, the recycling pipeline of the entire unit needs to be switched, which is cumbersome. Also, when multiple machines simultaneously feed waste to the same condenser, short fibers can easily accumulate in the pipeline due to overload, reducing recycling efficiency.) In addition, this recycling system has a complex pipeline structure, resulting in high maintenance costs. Specifically, in order to connect multiple combing machines, the recycling system has multiple levels of pipelines, including dust collection pipes, dust collection branch pipes, lint recycling pipes, and lint recycling branch pipes. This not only makes pipeline installation difficult and occupies a lot of workshop space, but also makes it easy for short fibers to clog at the junctions of branch pipes and main pipes, as well as at bends in the pipeline, due to their fluffy nature.

[0004] There are also standalone devices on the market, such as the waste recycling device for carding machines disclosed in the utility model with announcement number CN222294293U. However, it does not have a dust removal function and has the drawbacks of cumbersome subsequent waste processing and limited collection volume (in order to avoid the lint from flying away during the cleaning process, it chooses to directly immerse the filtered short fibers in the liquid in the water tank. The wet short fibers need to go through additional processes such as drying and sun drying before they can be reused, which prolongs the production process. At the same time, the volume of the water tank directly limits the amount of waste collected at one time. When the lint in the water tank accumulates to a certain extent, the machine needs to be stopped for cleaning and the liquid needs to be replaced. It cannot meet the recycling needs of a large number of short fibers in continuous production, and its applicable scenarios are limited).

[0005] In summary, existing waste recycling devices for carding machines generally suffer from problems such as difficulty in adapting centralized processing to individual machines, complex and easily clogged pipelines, cumbersome subsequent waste processing, and limited collection volume. These issues fail to fully meet the actual needs of textile enterprises for recycling devices that are "simple in structure, adaptable to specific needs, efficient in recycling, and convenient in maintenance." Therefore, developing an automatic recycling device that can be adapted to a single carding machine, has simplified pipelines, and can achieve waste compression and collection has become an urgent technical problem to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art and to propose an automatic recycling and dust removal device for waste materials from carding machines. It has a simple structure, good adaptability, high recycling efficiency, and convenient operation and maintenance. It can meet the actual needs of textile enterprises to reduce costs and increase efficiency and ensure production safety, and has significant practical value and promotion significance.

[0007] To achieve the above objectives, this invention proposes an automatic waste recycling and dust removal device for combing machines, comprising a three-way pipe, a fiber filter barrel, a machine housing, a suction hood, a ventilation mechanism, a pressing mechanism, a dust filtration assembly, and a controller. The fiber filter barrel, the suction hood, and the pressing mechanism are respectively connected to the three-way pipe. The ventilation mechanism can evacuate the machine housing containing the fiber filter barrel so that the fiber filter barrel can filter out short fibers from the dust-laden gas drawn in by the suction hood. The pressing mechanism can use a pressure plate that moves along the barrel channel inside the fiber filter barrel to squeeze and collect the short fibers. The dust filtration assembly is arranged between the machine housing and the ventilation mechanism to filter dust from the gas after fiber filtration. The controller is electrically connected to both the ventilation mechanism and the pressing mechanism.

[0008] Preferably, the pressing mechanism includes a cylinder and a pressure plate. The three-way pipe has a first pipe interface and a second pipe interface located on the same straight line, and a third pipe interface disposed between the first pipe interface and the second pipe interface. The filter fiber canister is detachably installed at the first pipe interface. The pressure plate is installed on the telescopic end of the cylinder and is initially positioned in the second pipe interface. The suction hood is connected to the third pipe interface via a telescopic flexible hose.

[0009] Preferably, the filter fiber canister is provided with a transparent canister window arranged along its length, the housing has a door that can open or close the housing cavity, and a transparent housing window is installed above the door, facing the transparent canister window.

[0010] Preferably, the ventilation mechanism includes a fan, an air inlet pipe, and an exhaust pipe. One end of the air inlet pipe is installed at the air inlet of the fan, and the other end is connected to the air outlet of the casing. One end of the exhaust pipe is installed at the air outlet of the fan, and the other end is connected to the atmosphere.

[0011] Furthermore, the ventilation mechanism also includes a return air pipe, a collection air pipe, branch air pipes, nozzles, and a solenoid valve. One end of the return air pipe is connected to the exhaust pipe from the side, and the other end is connected to the return air connector of the housing. The collection air pipe is connected to the return air connector and is equipped with several branch air pipes arranged around the filter fiber barrel. Several nozzles are installed on each branch air pipe, facing the filter fiber barrel. The exhaust pipe and the return air pipe are switched on and off by the solenoid valve to perform the exhaust or return air function.

[0012] Furthermore, the filter fiber canister has filter holes evenly distributed at one end near the three-way pipe.

[0013] Preferably, the dust filtration assembly has an outer cylinder that is detachably connected between the housing and the ventilation mechanism, and the dust filtration operation is achieved through a replaceable filter element located in the outer cylinder.

[0014] Furthermore, the dust filtration assembly also includes a cover ring and an inner cylinder. The filter element is coaxially placed in the inner cylinder. The two ends of the inner cylinder are detachably connected to cover rings to restrict the filter element from leaving the inner cylinder. The side of the outer cylinder is provided with an opening that connects to the cylinder channel. The inner cylinder containing the cover ring and the filter element can be inserted into the cylinder channel along the opening.

[0015] Furthermore, the outer diameter of the cover ring is larger than the inner diameter of the outer cylinder, and the outer cylinder and the cover ring are sealed together by a sealing ring.

[0016] Furthermore, the inner cylinder is also equipped with a handle that can extend beyond the opening.

[0017] The beneficial effects of this invention are: 1) Strong directional adaptability and high recycling efficiency: The device has a simple overall structure and can adopt a one-to-one independent working mode. It can directionally connect to the waste generation part of a single carding machine through the suction hood, and specifically recycle the short fiber waste generated by a single machine. There is no need for complicated pipeline switching (when a single carding machine needs to be stopped for maintenance or adjustment, it will not affect the normal recycling operation of other equipment). It effectively avoids the pipeline blockage problem caused by overload in the centralized processing mode, and significantly improves the waste recycling efficiency. 2) Simplified pipeline structure and low operation and maintenance cost: The present invention cleverly connects the filter fiber barrel, suction hood and pressing mechanism through a three-way pipe, which replaces the complex pipeline design of multi-level branch pipes and main pipes in the existing technology, reduces the difficulty of pipe laying, reduces the space occupied by the pipeline in the workshop, and at the same time, the simplified pipeline structure also reduces the risk of short fiber accumulation and blockage at bends and joints, which facilitates daily maintenance and cleaning and reduces operation and maintenance costs. 3) Achieve short fiber compression and collection, and extend the cleaning cycle: In this invention, the pressing mechanism can use a cylinder to drive the pressing plate to move inside the filter fiber barrel, thereby squeezing the collected fluffy short fibers into a compact cake shape, which greatly increases the single waste storage capacity of the filter fiber barrel; compared with traditional devices, this device does not require frequent shutdowns for cleaning, extends the manual cleaning interval, meets the needs of continuous production, and improves production efficiency. 4) It also has a high-efficiency dust removal function to protect the production environment: The present invention first filters short fibers through the fiber filter barrel, and then the dust filter component further filters the dust in the filtered gas. The dual filtration design effectively removes short fibers and dust particles from the dust-laden gas, avoiding the suspension of dust in the workshop air. This not only protects the respiratory health of the operators, but also prevents dust from adhering to the key components of the combing machine and affecting the operating accuracy and stability of the equipment. 5) Easy to observe and maintain, convenient to operate: In this invention, since the filter fiber canister is equipped with a transparent canister window and the housing door is equipped with a corresponding transparent housing window, the operator can intuitively grasp the fiber storage status inside the filter fiber canister without stopping the machine; in addition, the filter fiber canister adopts a detachable installation, and the filter element of the dust filter assembly can be easily replaced through the inner cylinder and cover ring and other structural designs. The opening and closing design of the housing door also makes it convenient for staff to inspect and maintain the internal components. The overall operation is simple and convenient. 6) It has a self-cleaning function to ensure continuous operation of the equipment: The air exchange mechanism of the present invention can be used with a solenoid valve to periodically start the air return back-flushing function, and use high-speed airflow to clear the filter holes of the filter fiber barrel, so as to avoid short fibers clogging the filter holes and affecting the gas flow and filtration effect, and ensure the continuous and stable operation of the equipment. 7) Improve the utilization rate of short fibers and reduce production costs: In this invention, the recycled short fibers are compressed and kept dry, and can be directly reused without additional drying and sun-drying processes, which simplifies the production process, improves the utilization rate of raw materials, and thus reduces the production costs of enterprises.

[0018] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is an installation diagram of Example 1; Figure 2 This is the front view of Embodiment 1; Figure 3 This is a rear view of Embodiment 1 when the suction hood and cylinder are removed; Figure 4 This is a cross-sectional view of the dust filter assembly in Embodiment 2.

[0020] In the diagram: 1-Tee pipe, 2-Fiber filter bucket, 21-Filter hole, 22-Transparent bucket window, 3-Casing, 31-Casing door, 32-Transparent casing window, 33-Outlet connector, 34-Return connector, 4-Suction hood, 5-Ventilation mechanism, 51-Fan, 52-Inlet pipe, 53-Exhaust pipe, 54-Return pipe, 55-Collection pipe, 56-Branch pipe, 57-Nozzle, 58-Solenoid valve, 6-Pressure mechanism, 61-Cylinder, 62-Pressure plate, 7-Dust filter assembly, 71-Outer cylinder, 711-Opening, 72-Cover ring, 73-Inner cylinder, 731-Handle, 74-Filter element, 75-Sealing ring, 8-Sorting machine. Detailed Implementation

[0021] Example 1: See Figures 1 to 3 The present invention relates to an automatic waste recycling and dust removal device for a combing machine, comprising a three-way pipe 1, a fiber filter barrel 2, a machine housing 3, a suction hood 4, a ventilation mechanism 5, a pressing mechanism 6, a dust filter assembly 7, and a controller. The fiber filter barrel 2, the suction hood 4, and the pressing mechanism 6 are respectively connected to the three-way pipe 1. The ventilation mechanism 5 can evacuate the machine housing 3 containing the fiber filter barrel 2 so that the fiber filter barrel 2 filters out short fibers from the dust-laden gas drawn in by the suction hood 4. The pressing mechanism 6 can use a pressure plate 62 that moves along the barrel channel inside the fiber filter barrel 2 to squeeze and collect the short fibers. The dust filter assembly 7 is arranged between the machine housing 3 and the ventilation mechanism 5 to filter dust from the gas after fiber filtration. The controller is electrically connected to the ventilation mechanism 5 and the pressing mechanism 6 respectively.

[0022] The pressing mechanism 6 includes a cylinder 61 and a pressure plate 62. The three-way pipe 1 has a first pipe interface and a second pipe interface located on the same straight line, and a third pipe interface disposed between the first pipe interface and the second pipe interface. The filter fiber canister 2 is detachably installed at the first pipe interface. The pressure plate 62 is installed on the telescopic end of the cylinder 61 and is initially positioned in the second pipe interface. The suction hood 4 is connected to the third pipe interface through a telescopic flexible hose.

[0023] The filter canister 2 is provided with a transparent canister window 22 arranged along its length. The housing 3 has a door 31 that can be opened or closed. A transparent housing window 32 is installed on the door 31, facing the transparent canister window 22. With this design, the user can intuitively see the fiber content of the filter canister 2 without stopping the machine through the transparent canister window 22 and the transparent housing window 32. If the fiber content of the filter canister 2 is too high, the user can first open the door 31 and then unscrew the filter canister 2 from the three-way pipe 1 to pour out the accumulated short fibers.

[0024] The ventilation mechanism 5 includes a fan 51, an air inlet pipe 52, and an exhaust pipe 53. One end of the air inlet pipe 52 is installed at the air inlet of the fan 51, and the other end is connected to the air outlet connector 33 of the housing 3. One end of the exhaust pipe 53 is installed at the air outlet of the fan 51, and the other end is connected to the atmosphere.

[0025] The ventilation mechanism 5 also includes a return air pipe 54, a collecting air pipe 55, branch air pipes 56, nozzles 57, and a solenoid valve 58. One end of the return air pipe 54 is connected to the exhaust pipe 53 from the side, and the other end is connected to the return air connector 34 of the housing 3. The collecting air pipe 55 is connected to the return air connector 34 and is equipped with several branch air pipes 56 arranged around the filter fiber barrel 2. Several nozzles 57 are installed on each branch air pipe 56 facing the filter fiber barrel 2. The exhaust pipe 53 and the return air pipe 54 are switched on and off by the solenoid valve 58 to perform the exhaust or return air functions.

[0026] The filter fiber canister 2 has filter holes 21 evenly distributed at one end near the three-way pipe 1; this hole distribution method can effectively prevent the compacted short fibers from affecting the gas leaving the filter fiber canister 2.

[0027] The working process of this embodiment: like Figure 1 As shown, before use, first install this device on the combing machine 8, and then point the suction hood 4 toward the part of the combing machine 8 that is prone to dispersing air containing fibrous dust.

[0028] During the operation of the combing machine 8, the fan 51 can be started and, through suction, causes the air containing fiber dust to move sequentially along the suction hood 4, the three-way pipe 1, the fiber filter barrel 2, the machine casing 3, the dust filter assembly 7, the air inlet pipe 52, and the exhaust pipe 53 (the solenoid valve 58 opens the exhaust pipe 53 and closes the return air pipe 54) to filter out short fibers (through the fiber filter barrel 2) and dust particles (through the dust filter assembly 7) and finally discharge them into the atmosphere. During this period, short fibers are trapped in the fiber filter barrel 2, and the pressing mechanism 6 can intermittently press the short fibers to change them from an irregular, fluffy state to a thin cake shape. The short fibers are compacted (the cylinder 61 can periodically drive the pressure plate 62 to gradually move towards the bottom of the filter fiber canister 2 to compact the short fibers); in addition, the air exchange mechanism 5 can periodically activate the return air removal function to avoid the filter holes 21 being blocked by short fibers; specifically, during the return air removal, the solenoid valve 58 opens the return air pipe 54 and closes the exhaust pipe 53, so that the air intake pipe 52 draws in the air removal air and sprays it along the return air pipe 54, the air collection pipe 55 and the branch pipe 56 and through each nozzle 57 to the filter fiber canister 2, thereby using the high-speed airflow obtained by circulation to backflush and clear the filter fiber canister 2.

[0029] Example 2: See Figure 4 The dust filter assembly 7 has an outer cylinder 71 that is detachably connected between the housing 3 and the ventilation mechanism 5, and performs dust filtration through a replaceable filter element 74 located in the outer cylinder 71; wherein the outer cylinder 71 is a straight tube with flanges at both ends.

[0030] The dust filter assembly 7 also includes a cover ring 72 and an inner cylinder 73. The filter element 74 is coaxially placed in the inner cylinder 73. The two ends of the inner cylinder 73 are respectively detachably connected to the cover ring 72 to restrict the filter element 74 from leaving the inner cylinder 73. The side of the outer cylinder 71 is provided with an opening 711 that connects to the cylinder channel. The inner cylinder 73, which is equipped with the cover ring 72 and the filter element 74, can be inserted into the cylinder channel along the opening 711.

[0031] The outer diameter of the cover ring 72 is larger than the inner diameter of the outer cylinder 71, and the outer cylinder 71 and the cover ring 72 are sealed together by a sealing ring 75. A multi-ring sealing design can be adopted, and each sealing ring 75 can be fixed separately on the outer cylinder 71 or the cover ring 72, or the sealing rings 75 can be arranged in groups on the outer cylinder 71 and the cover ring 72.

[0032] The inner cylinder 73 is also equipped with a handle 731 that can extend beyond the opening 711.

[0033] Everything else is the same as in Example 1.

[0034] The working process of this embodiment: During use, the filter element 74 is used to filter and remove dust from the flowing dust-laden gas. After a period of use, the filter element 74 needs to be replaced. Specifically, you can hold the handle 731 and pull the inner cylinder 73 and its connected accessories out of the outer cylinder 71 along the opening 711. After unscrewing the cover ring 72 and replacing the filter element 74, you can reinsert the inner cylinder 73 and its connected accessories back into the outer cylinder 71 along the opening 711.

[0035] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. An automatic waste recycling and dust removal device for a combing machine, characterized in that: The system includes a three-way pipe (1), a fiber filter barrel (2), a housing (3), a suction hood (4), a ventilation mechanism (5), a pressing mechanism (6), a dust filter assembly (7), and a controller. The fiber filter barrel (2), the suction hood (4), and the pressing mechanism (6) are connected to the three-way pipe (1). The ventilation mechanism (5) can evacuate the housing (3) containing the fiber filter barrel (2) so that the fiber filter barrel (2) can filter out short fibers from the dust-laden gas drawn from the suction hood (4). The pressing mechanism (6) can use a pressure plate (62) that moves along the barrel channel inside the fiber filter barrel (2) to squeeze and collect the short fibers. The dust filter assembly (7) is arranged between the housing (3) and the ventilation mechanism (5) to filter dust from the gas after fiber filtration. The controller is electrically connected to the ventilation mechanism (5) and the pressing mechanism (6).

2. The automatic waste recycling and dust removal device for combing machines as described in claim 1, characterized in that: The pressing mechanism (6) includes a cylinder (61) and a pressure plate (62). The three-way pipe (1) has a first pipe interface and a second pipe interface located on the same straight line, and a third pipe interface located between the first pipe interface and the second pipe interface. The filter fiber barrel (2) is detachably installed at the first pipe interface. The pressure plate (62) is installed on the telescopic end of the cylinder (61) and stays in the second pipe interface in the initial state. The suction hood (4) is connected to the third pipe interface through a telescopic hose.

3. The automatic waste recycling and dust removal device for combing machines as described in claim 1, characterized in that: The filter fiber barrel (2) is provided with a transparent barrel window (22) arranged along the length direction. The housing (3) has a shell door (31) that can open or close the shell cavity. A transparent shell window (32) facing the transparent barrel window (22) is installed on the shell door (31).

4. The automatic waste recycling and dust removal device for combing machines as described in claim 1, characterized in that: The ventilation mechanism (5) includes a fan (51), an air inlet pipe (52) and an exhaust pipe (53). One end of the air inlet pipe (52) is installed at the air inlet of the fan (51) and the other end is connected to the air outlet connector (33) of the casing (3). One end of the exhaust pipe (53) is installed at the air outlet of the fan (51) and the other end is connected to the atmosphere.

5. The automatic waste recycling and dust removal device for combing machines as described in claim 4, characterized in that: The ventilation mechanism (5) also includes a return air pipe (54), an air collecting pipe (55), a branch air pipe (56), a nozzle (57), and a solenoid valve (58). One end of the return air pipe (54) is connected to the exhaust pipe (53) from the side, and the other end is connected to the return air connector (34) of the housing (3). The air collecting pipe (55) is connected to the return air connector (34) and is equipped with several branch air pipes (56) arranged around the filter fiber barrel (2). Several nozzles (57) are installed on each branch air pipe (56) facing the filter fiber barrel (2). The exhaust pipe (53) and the return air pipe (54) are respectively switched on and off by the solenoid valve (58) to perform the exhaust or return air function.

6. The automatic waste recycling and dust removal device for combing machines as described in claim 5, characterized in that: The filter fiber barrel (2) has filter holes (21) evenly distributed at one end near the three-way pipe (1).

7. The automatic waste recycling and dust removal device for combing machines as described in claim 1, characterized in that: The dust filter assembly (7) has an outer cylinder (71) that is detachably connected between the housing (3) and the ventilation mechanism (5) and performs dust filtration through a replaceable filter element (74) located in the outer cylinder (71).

8. The automatic waste recycling and dust removal device for combing machines as described in claim 7, characterized in that: The dust filter assembly (7) also includes a cover ring (72) and an inner cylinder (73). The filter element (74) is coaxially placed in the inner cylinder (73). The two ends of the inner cylinder (73) are respectively detachably connected to the cover ring (72) to restrict the filter element (74) from leaving the inner cylinder (73). The side of the outer cylinder (71) is provided with an opening (711) that connects to the cylinder channel. The inner cylinder (73) containing the cover ring (72) and the filter element (74) can be inserted into the cylinder channel along the opening (711).

9. The automatic waste recycling and dust removal device for combing machines as described in claim 8, characterized in that: The outer diameter of the cover ring (72) is larger than the inner diameter of the outer cylinder (71), and the outer cylinder (71) and the cover ring (72) are sealed together by a sealing ring (75).

10. The automatic waste recycling and dust removal device for combing machines as described in claim 8, characterized in that: The inner cylinder (73) is also equipped with a handle (731) that can extend beyond the opening (711).

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