Negative-pressure yarn guiding equipment
By introducing a negative pressure cleaning component into the negative pressure yarn feeding device, the problem of equipment blockage caused by cotton fiber accumulation has been solved, achieving stable conveying and cleaning, and improving equipment operating efficiency and environmental friendliness.
Patent Information
- Application Number
- CN202520454902.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Traditional negative pressure yarn feeding equipment lacks effective cleaning functions, causing cotton fibers to scatter and accumulate on the inner wall of the negative pressure pipe, affecting the equipment's operating efficiency and quality, and increasing maintenance costs.
A negative pressure cleaning component was designed, including a conveying shell, a scraper, a lubrication cylinder, a pad, a protective shell, and a drive component. The scraper cleans and collects cotton fibers adhering to the inner wall of the negative pressure pipe, and the negative pressure collection device enables continuous conveying and cleaning.
It improves the cleanliness and flow of negative pressure pipes, reduces equipment failures, lowers maintenance costs, and enhances production efficiency and resource utilization, while meeting environmental protection and energy-saving requirements.
Smart Images

Figure CN223765752U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cotton yarn processing technology, specifically relating to a negative pressure yarn feeding device. Background Technology
[0002] In the cotton yarn production process, the yarn feeding stage is crucial. Traditional negative pressure yarn feeding equipment is widely used, which uses negative pressure pipes to adsorb cotton yarn and transport it to subsequent processes, ensuring production continuity. However, traditional equipment has a key problem: it lacks an effective cleaning function.
[0003] During the cotton yarn conveying process, cotton fibers easily scatter and adhere to the inner wall of the negative pressure pipe, gradually accumulating to form a thick layer. This not only reduces the cleanliness inside the negative pressure pipe but may also block the airflow channel, weaken the negative pressure effect, affect the efficiency and quality of cotton yarn conveying, and even lead to equipment failure, increasing maintenance costs and downtime, and reducing production efficiency and economic benefits. After long-term operation, the inner wall of the negative pressure pipe becomes narrow due to the accumulation of cotton fibers, reducing the negative pressure adsorption capacity, causing poor cotton yarn conveying, frequent jamming, and forcing the equipment to be shut down for cleaning, which consumes manpower and resources and may also leave hidden dangers due to incomplete cleaning. Utility Model Content
[0004] The purpose of this invention is to provide a negative pressure yarn feeding device, which aims to solve the problems mentioned in the background art.
[0005] A negative pressure yarn feeding device, comprising,
[0006] Negative pressure pipe;
[0007] A negative pressure cleaning assembly is located on the inner wall of a negative pressure pipe. The assembly includes a conveying shell, a scraper, a constraint shell, a lubrication cylinder, a pad, a protective shell, a negative pressure hole, and a drive assembly. The pad is threaded to the inner wall of the negative pressure pipe. The scraper is fixedly mounted on the outer wall of the conveying shell, and the scraper and conveying shell are interconnected. The protective shell is threaded to the outer wall of the pad. The constraint shell is fixedly mounted on the top edge of the outer wall of the pad. The negative pressure hole is located on the outer wall of the scraper. The lubrication cylinder is slidably embedded in the inner wall of the top of the negative pressure pipe. The conveying shell and the pad are interconnected. The pad is connected to an external negative pressure collection device via a flexible hose. The drive assembly is located on the inner wall of the pad.
[0008] Furthermore, the drive assembly includes a drive motor, a driving gear, and a driven gear.
[0009] Furthermore, the driven gear is fixedly disposed at the bottom of the outer wall of the conveyor housing.
[0010] Furthermore, the drive gear is fixedly mounted on the outer wall of the output end of the drive motor.
[0011] Furthermore, the drive motor is embedded in the inner wall of the protective shell.
[0012] Furthermore, the driving gear and the driven gear are meshed and connected in a transmission manner.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The negative pressure cleaning component enables stable and continuous cotton yarn conveying, and cleans and collects lost and attached cotton fibers under negative pressure. This prevents large amounts of cotton fibers from clogging the airflow channels inside the negative pressure pipe, maximizing its smoothness and improving the cleanliness inside the pipe. The conveying shell and the pad are interconnected, and the pad is connected to an external negative pressure collection device via a flexible hose. This design makes the equipment more flexible during use, better adapting to different working environments and needs. By collecting lost cotton fibers under negative pressure, environmental pollution is reduced, and resource utilization is improved, meeting environmental protection and energy conservation requirements. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a perspective view of the present utility model;
[0017] Figure 2 This is a partial half-sectional perspective view of the present invention;
[0018] Figure 3 This is a perspective view of the scraper of this utility model.
[0019] In the diagram: 1. Negative pressure pipe; 2. Conveying shell; 3. Scraper; 4. Constraint shell; 5. Drive motor; 6. Drive gear; 7. Driven gear; 101. Lubrication cylinder; 102. Pad; 103. Protective shell; 301. Negative pressure hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Please see Figure 1-3 The technical solution provided in this embodiment is as follows:
[0024] A negative pressure yarn feeding device, comprising,
[0025] Negative pressure pipe 1;
[0026] A negative pressure cleaning assembly is located on the inner wall of the negative pressure pipe 1. The negative pressure cleaning assembly includes a conveying shell 2, a scraper 3, a constraint shell 4, a lubrication cylinder 101, a pad 102, a protective shell 103, a negative pressure hole 301, and a drive assembly. The pad 102 is threaded to the inner wall of the negative pressure pipe 1. The scraper 3 is fixedly installed on the outer wall of the conveying shell 2 and is interconnected with the conveying shell 2. The protective shell 103 is threaded to the outer wall of the pad 102. The constraint shell 4 is fixedly installed at the top edge of the outer wall of the pad 102. The negative pressure hole 301 is opened on the outer wall of the scraper 3. The lubrication cylinder 101 is slidably embedded in the inner wall of the top of the negative pressure pipe 1. The conveying shell 2 and the pad 102 are interconnected. The pad 102 is connected to an external negative pressure collection device through a hose. The drive assembly is located on the inner wall of the pad 102.
[0027] In a specific embodiment of this utility model, the negative pressure cleaning component can stably and continuously transport cotton yarn, and can clean and collect lost and attached cotton fibers under negative pressure. This prevents a large amount of cotton fibers from clogging the airflow channels on the inner wall of the negative pressure pipe 1, maximizing its smoothness and improving the cleanliness inside the negative pressure pipe 1. The conveying shell 2 is interconnected with the pad 102, and the pad 102 is connected to an external negative pressure collection device via a flexible hose. This design makes the equipment more flexible in use and better adaptable to different working environments and needs. By collecting lost cotton fibers under negative pressure, environmental pollution is reduced, and resource utilization is improved, meeting the requirements of environmental protection and energy conservation.
[0028] Specifically, the drive components include a drive motor 5, a drive gear 6, and a driven gear 7.
[0029] In a specific embodiment of this utility model, the drive component can ensure stable power transmission.
[0030] Specifically, the driven gear 7 is fixedly installed at the bottom of the outer wall of the conveyor housing 2.
[0031] In a specific embodiment of this utility model, the driven gear 7 is fixedly disposed at the bottom of the outer wall of the conveying housing 2, which can ensure the stability of rotation.
[0032] Specifically, the drive gear 6 is fixedly mounted on the outer wall of the output end of the drive motor 5.
[0033] In a specific embodiment of this utility model, the drive gear 6 is fixedly mounted on the outer wall of the output end of the drive motor 5, which can ensure the stability of the installation.
[0034] Specifically, the drive motor 5 is embedded in the inner wall of the protective shell 103.
[0035] In a specific embodiment of this utility model, the drive motor 5 is embedded in the inner wall of the protective shell 103, which can ensure its stable protective function.
[0036] Specifically, the driving gear 6 and the driven gear 7 are meshed and connected.
[0037] In a specific embodiment of this utility model, the driving gear 6 and the driven gear 7 are meshed and connected to ensure transmission accuracy.
[0038] Working principle:
[0039] First, the negative pressure yarn feeding device is started, and the external negative pressure collection device begins to work, generating negative pressure. The cotton yarn enters the negative pressure pipe 1. Through the action of negative pressure, the cotton yarn is smoothly transported to the subsequent process. During the cotton yarn transport process, the cotton fibers lost and attached to the inner wall of the negative pressure pipe 1 are cleaned and collected by the negative pressure cleaning component. The drive motor 5 is started, and through the meshing transmission of the drive gear 6 and the driven gear 7, it drives the conveyor shell 2 to rotate. When the conveyor shell 2 rotates, the scraper 3 fixed on its outer wall also rotates. The scraper 3 contacts the inner wall of the negative pressure pipe 1 and scrapes off the cotton fibers attached to the inner wall. The negative pressure holes 3 on the scraper 3... 01 is connected to the external negative pressure collection device. The scraped cotton fibers are sucked into the inside of the conveying shell 2 through the negative pressure hole 301, and then collected into the external negative pressure collection device through the pad 102 and the hose. The lubrication cylinder 101 slides on the inner wall at the top of the negative pressure pipe 1 to reduce friction and ensure smooth operation of the equipment. Throughout the process, the cotton yarn is continuously conveyed, and the negative pressure cleaning component continuously cleans and collects the lost cotton fibers to ensure the cleanliness of the inside of the negative pressure pipe 1 and the unobstructed airflow. When the cotton yarn is conveyed, the negative pressure yarn feeding device is turned off, the external negative pressure collection device stops working, and the entire conveying and cleaning process ends.
[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A negative pressure yarn guiding device, characterized in that, The utility model relates to a negative pressure pipe (1) and a negative pressure cleaning assembly arranged on the inner wall of the negative pressure pipe (1), wherein the negative pressure cleaning assembly comprises a conveying shell (2), a scraper (3), a constraint shell (4), a lubricating cylinder (101), a backing plate (102), a protective shell (103), a negative pressure hole (301) and a driving assembly. The scraper (3) is fixedly arranged on the outer wall of the conveying shell (2) and communicates with the conveying shell (2). The protective shell (103) is threadedly connected to the outer wall of the backing plate (102).
2. A negative pressure yarn guiding device according to claim 1, characterized in that The constraint shell (4) is fixedly arranged on the top edge of the outer wall of the backing plate (102).
3. A negative pressure yarn guiding device according to claim 2, characterized in that The negative pressure hole (301) is arranged on the outer wall of the scraper (3).
4. A negative pressure yarn guiding device according to claim 3, characterized in that The lubricating cylinder (101) is slidably embedded in the inner wall of the top end of the negative pressure pipe (1).
5. A negative pressure yarn guiding device according to claim 4, characterized in that The conveying shell (2) and the backing plate (102) communicate with each other.
6. A negative pressure yarn guiding device according to claim 5, characterized in that The driving assembly is arranged on the inner wall of the backing plate (102). The driving assembly comprises a driving motor (5), a driving gear (6) and a driven gear (7). The driven gear (7) is fixedly arranged on the bottom of the outer wall of the conveying shell (2). The driving gear (6) is fixedly arranged on the output end of the driving motor (5). The driving motor (5) is embedded in the inner wall of the protective shell (103). The driving gear (6) and the driven gear (7) are in meshing transmission connection.