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Energy-Saving Retrofit for LM-6 Series Sliver Machines
We are a specialized enterprise that manufactures and sells circulating blow-and-suction cleaning machines for textile machinery—including roving frames, spinning frames, air-jet spinning machines, winding machines, doubling machines, twister machines, warping machines, and weaving looms—as well as energy-saving cotton-suction fans for spinning frames, energy-efficient retrofit solutions for roving frames, high-efficiency fans for compact spinning systems, automatic circulation systems for roving frames, industrial automation conveying equipment...
Product Description
We are a specialized enterprise that manufactures and sells circulating blow-and-suction cleaning machines for textile machinery—including roving frames, spinning frames, air-jet spinning machines, winding machines, doubling machines, twister machines, warping machines, and weaving looms—as well as energy-saving cotton-suction fans for spinning frames, energy-efficient retrofit solutions for roving frames, high-efficiency fans for compact spinning systems, automatic circulation systems for roving frames, industrial automation conveying equipment, Roots vacuum dust collection systems for weaving workshops, industrial vacuum cleaners, and other textile machinery and environmental protection equipment for smoke, dust, and particulate matter purification.
The roving frame transforms slivers produced after combing into roving through drawing and twisting. During this production process, short fibers and flyings are generated. Currently, most roving frames in use employ circulating blowers and suction devices to collect the accumulated fibers in the drawing zone. At the same time, nozzles are used to direct the short fibers and flyings from the machine’s surface into the main cotton-suction duct. A 3-kW (or 4-kW) cotton-suction fan located at the machine’s head then draws these flyings into the head-end cotton-suction box.
Implementation Plan
1. Remove the original vacuum fan and main air duct, and install a new storage tank.
2. Use a circulating blower to blow short fibers and fluff into the storage bin.
3. Utilize the original cleaning and rotating shaft transmission belt of the roving machine (or alternatively install an additional 60W reduction motor) to convey the accumulated fibers from the storage hopper into the storage bin.
4. The car stopper shall clean the accumulated cotton from both ends of the drive shaft and the cotton storage bin once per shift.
5. For up to 4 roving machines, the existing head-end cotton-suction fans can be used for centralized suction of cotton. For 5 to 10 machines, a new set of 4-kW centralized cotton-suction units must be purchased to collect accumulated cotton from both the suction and blowing fans as well as the conveyor belts.
By eliminating the head-end fan, each unit can save approximately 10,000 yuan in electricity costs per year.
Applicable to energy-saving upgrades of roving frames from Jingwei, Tianjin, Taihang, Hongyuan, Global, and other manufacturers.
[Utility Model] An Energy-Saving System for Roving Fans
Authorization Notice No.: CN209493665U
Authorization Announcement Date: 2019.10.15
Application No.: 2019200210455
Application date: 2019.01.07
Patentee: Rugao City Lingmin Dust Removal Equipment Factory
Inventor: Huang Delin
Address: Tianbao Village, Taoyuan Town, Rugao City, Nantong City, Jiangsu Province, 226500
Classification numbers: D01H5/66 (2006.01)I; D01H11/00 (2006.01)I
Abstract:
This utility model relates to an energy-saving system for roving fans, designed to collect waste cotton from the upper cleaner and the surface of the roving frame. The innovative aspect of this system lies in its use of a rear-blowing cotton-collection device that achieves the same cotton-collection effect as the original high-power fan—but with significantly lower power consumption. The device comprises a cotton-collection trough, air ducts, a small fan, and a non-powered transmission system. The rear-blowing cotton-collection device includes a rear cotton-collection trough and multiple relay rear-cotton-blowing nozzles arranged within the trough. The rear cotton-collection trough is equipped at its end with a rear cotton-suction port. These rear-cotton-blowing nozzles are evenly distributed along the extension direction of the roller drafting zone, with their outlets facing toward the rear cotton-suction port. The rear cotton-suction port is connected to a small negative-pressure blower, which serves as the air source for the rear-cotton-blowing nozzles. The advantages of this utility model include: by using multiple rear-cotton-blowing nozzles in a relay configuration, loose fibers are directed into the rear cotton-suction port and then, under the action of the fan, sucked into the air-filtering cotton chamber for collection. The filtered air is subsequently blown back out by the fan and directed again toward the rear-cotton-blowing nozzles. By sequentially arranging the rear-cotton-blowing nozzles to agitate the waste cotton stored in the collection trough, this system significantly reduces pressure loss compared to the original high-power negative-pressure cotton-suction fan, thereby lowering the fan’s power consumption.
Abstract with illustrations:

Product application scope:
The energy-saving system retrofit for roving frames is widely applicable to various models of roving frames (left-hand and right-hand types), and can be used for energy-saving upgrades of existing roving frames as well as for use with new machines.
Product features:
The energy-saving system retrofit for roving fans has the following features compared to the original models of roving blowers and suction fans: 1. Under the premise of meeting production process requirements, it achieves power savings of 70-90% (the original negative-pressure cotton-suction fan was equipped with a 3kW-4kW motor, whereas the new energy-saving retrofit roving fan is equipped with a 0.37kW motor); 2. The product features low noise, a compact structure, and easy maintenance.
Note:
This product works even more effectively when paired with energy-saving modifications for roving blowers and suction systems. There are several options available for energy-saving upgrades to the cotton-suction fans on roving frames; for details, please consult Sensible Company’s sales consultants.
In addition, our company has now developed energy-saving blow-and-suction systems for roving and energy-saving negative-pressure fans.
The energy-saving circulating blow-and-suction system for coarse yarn has been upgraded from the original 1.5 kW to 0.55 kW. The blow-and-suction system and the return fibers from the V-shaped trough on the lower side share a single 0.37-kW fan for collection. A switching gate is installed to ensure that, during blow-and-suction operation, fiber collection within the fan takes only a few seconds; at all other times, the fan draws in fibers from the drive belt.
Category:
Tags:
Blowing and suction cleaning machine
Negative pressure fan
Energy-saving fan
Cleaning truck
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