阅读说明：本技术 熔喷布成型设备 (Melt-blown fabric forming equipment ) 是由 刘志江 郑韶君 于 2020-12-04 设计创作，主要内容包括：一种熔喷布成型设备,包括螺杆挤压机、喷丝头、输送网帘、第一成型系统及第二成型系统,所述输送网帘设于喷丝头的下方；所述第一成型系统包括热风机及导风管,所述热风机产生的热风经导风管流出,所述导风管的出口端设于喷丝头的一侧；所述第二成型系统包括空调、气泵、腔体及若干管道,所述空调、气泵、腔体之间通过管道依次连接,所述空调产生冷气,气泵将冷气输送到腔体上,腔体呈中空设置,所述腔体上设有一长型的冷气出口。本发明由第一成型系统和第二成型系统对喷丝头喷出来的喷丝进行逐步降温,使成型后的熔喷布韧性好、连续性好,进一步提高熔喷布的透气性,过滤效果好和降低阻力,并且使熔喷布的丝拉的更细,实用性强。(A melt-blown fabric forming device comprises a screw extruder, a spinneret, a conveying net curtain, a first forming system and a second forming system, wherein the conveying net curtain is arranged below the spinneret; the first molding system comprises an air heater and an air guide pipe, hot air generated by the air heater flows out through the air guide pipe, and the outlet end of the air guide pipe is arranged on one side of the spinneret; the second forming system comprises an air conditioner, an air pump, a cavity and a plurality of pipelines, the air conditioner, the air pump and the cavity are sequentially connected through the pipelines, the air conditioner generates cold air, the air pump conveys the cold air to the cavity, the cavity is arranged in a hollow mode, and a long cold air outlet is formed in the cavity. The first forming system and the second forming system gradually cool the spinning yarns sprayed by the spinning head, so that the formed melt-blown fabric has good toughness and continuity, the air permeability of the melt-blown fabric is further improved, the filtering effect is good, the resistance is reduced, the filaments of the melt-blown fabric are drawn more finely, and the practicability is high.)

1. The melt-blown fabric forming equipment is characterized by comprising a screw extruder, a spinning nozzle, a conveying net curtain, a first forming system and a second forming system, wherein the conveying net curtain is arranged below the spinning nozzle;

the first molding system comprises an air heater and an air guide pipe, hot air generated by the air heater flows out through the air guide pipe, the outlet end of the air guide pipe is arranged on one side of the spinning nozzle, the outlet end of the air guide pipe faces to the direction parallel to the spinning direction of the spinning nozzle, the screw extruder heats materials to 250-280 ℃, and the temperature of hot air flowing out of the outlet of the air guide pipe is 200-210 ℃;

the second molding system includes air conditioner, air pump, cavity and a plurality of pipeline, connect gradually through the pipeline between air conditioner, air pump, the cavity, the air conditioner produces air conditioning, and on the cavity was carried air conditioning to the air pump, the cavity was the cavity setting, be equipped with the air conditioning export of a elongated on the cavity, the spinneret bottom 50 ~ 55mm department is located to the air conditioning export, the interval between spinneret and the transport network curtain is 150 ~ 160mm to the orientation of air conditioning export and the spinning direction mutually perpendicular of spinneret, the during operation, the air conditioning humidity of the outflow from the air conditioning export is 15 ~ 17 ℃.

2. The meltblown fabric forming apparatus of claim 1, wherein: the temperature of the hot air flowing out of the outlet of the air guide pipe is 200-205 ℃.

3. The meltblown fabric forming apparatus of claim 1, wherein: the spinning device is characterized by further comprising a feeding system, a melt filter, a metering pump and a coiling machine, wherein the feeding system is connected with the screw extruder, the feeding system transfers materials to the screw extruder, the melt filter is connected with the screw extruder, the metering pump is connected with the melt filter, and the spinning nozzle is connected with the metering pump.

Technical Field

The invention relates to processing equipment, in particular to melt-blown fabric forming equipment.

Background

The melt-blown fabric is a filter material with polypropylene as a main raw material. The fiber diameter can reach 1-5 microns, and the superfine fibers with unique capillary structures increase the number and the surface area of fibers in unit area, so that the melt-blown fabric has good filtering property, shielding property, heat insulation property and oil absorption property, and can be used in the fields of air, liquid filtering materials, isolating materials, absorbing materials, mask materials, heat-insulating materials, wiping cloth and the like.

However, under the influence of the existing process and equipment, when part of melt-blown fabric manufacturers produce melt-blown fabrics, the situation that interlayer or toughness is insufficient easily occurs on part of silk threads of the melt-blown fabrics, the quality of products is seriously influenced, and the economic benefit of enterprises is greatly influenced.

Disclosure of Invention

In view of the above, it is necessary to provide a meltblown fabric forming apparatus in order to overcome the disadvantages of the prior art.

A melt-blown fabric forming device comprises a screw extruder, a spinneret, a conveying net curtain, a first forming system and a second forming system, wherein the conveying net curtain is arranged below the spinneret;

the first molding system comprises an air heater and an air guide pipe, hot air generated by the air heater flows out through the air guide pipe, the outlet end of the air guide pipe is arranged on one side of the spinning nozzle, the outlet end of the air guide pipe faces to the direction parallel to the spinning direction of the spinning nozzle, the screw extruder heats materials to 250-280 ℃, and the temperature of hot air flowing out of the outlet of the air guide pipe is 200-210 ℃;

the second molding system includes air conditioner, air pump, cavity and a plurality of pipeline, connect gradually through the pipeline between air conditioner, air pump, the cavity, the air conditioner produces air conditioning, and on the cavity was carried air conditioning to the air pump, the cavity was the cavity setting, be equipped with the air conditioning export of a elongated on the cavity, the spinneret bottom 50 ~ 55mm department is located to the air conditioning export, the interval between spinneret and the transport network curtain is 150 ~ 160mm to the orientation of air conditioning export and the spinning direction mutually perpendicular of spinneret, the during operation, the air conditioning humidity of the outflow from the air conditioning export is 15 ~ 17 ℃.

Furthermore, the temperature of the hot air flowing out of the outlet of the air guide pipe is 200-205 ℃.

The device further comprises a feeding system, a melt filter, a metering pump and a coiling machine, wherein the feeding system is connected with the screw extruder, the feeding system transfers materials to the screw extruder, the melt filter is connected with the screw extruder, the metering pump is connected with the melt filter, and the spinning jet is connected with the metering pump.

The invention has the beneficial effects that: through setting up first forming system and second forming system, spout the silk that the spinneret spun by first forming system and second forming system and come and carry out progressively cooling, make the melt-blown cloth toughness after the shaping good, the continuity is good, further improve the gas permeability of melt-blown cloth, the filter effect is good and reduce the resistance to the silk that makes the melt-blown cloth is drawn more carefully, the practicality is strong.

Drawings

FIG. 1 is a schematic structural view of a meltblown fabric forming apparatus of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

As shown in figure 1, the invention provides a melt-blown fabric forming device, which is used for producing melt-blown fabric, the produced melt-blown fabric has good toughness, high quality and strong air permeability, the melt-blown fabric forming device comprises a feeding system, a screw extruder, a melt filter, a spinneret 20, a metering pump, a conveying screen 10 and a coiling machine, the feeding system is connected with the screw extruder, the feeding system transfers materials to the screw extruder, the screw extruder melts the materials, the melt filter is connected with the screw extruder, the metering pump is connected with the melt filter, the spinneret 20 is connected with the metering pump, the melted materials are conveyed to the spinneret 20 by the metering pump after being filtered by the melt filter, the output and the fineness of fibers are controlled by the metering pump, the conveying screen 10 is arranged below the spinneret 20, and the melt-blown fibers are uniformly paved on the screen, forming melt-blown cloth, feeding the melt-blown cloth by the conveying net curtain 10, and receiving the melt-blown cloth by a coiling machine.

The melt-blown fabric forming equipment further comprises a first forming system and a second forming system 40, wherein the first forming system comprises an air heater and an air guide pipe 30, hot air generated by the air heater flows out through the air guide pipe 30, the outlet end of the air guide pipe 30 is arranged on one side of the spinning nozzle 20, the outlet end of the air guide pipe 30 faces the direction parallel to the spinning direction of the spinning nozzle 20, the material is heated to 250-280 ℃ by a screw extruder, the temperature of hot air flowing out of the outlet of the air guide pipe 30 is 200-210 ℃, preferably, the temperature of hot air flowing out of the outlet of the air guide pipe 30 is 200-205 ℃, and the temperature of the spun yarns of the spinning nozzle 20 is preliminarily reduced by arranging the first forming system, so that the continuity of the spun yarns is maintained, and meanwhile, the condition that the humidity of the spun yarns is reduced too fast to influence the melt-blowing effect.

The second forming system 40 comprises an air conditioner 41, an air pump 42, a cavity 43 and a plurality of pipelines 44, the air conditioner 41, the air pump 42 and the cavity 43 are sequentially connected through the pipelines 44, the air conditioner 41 generates cold air, the air pump 42 conveys the cold air to the cavity 43, the cavity 43 is hollow, a long cold air outlet 45 is arranged on the cavity 43, the cold air outlet 45 is arranged at the bottom 50-55 mm of the spinning nozzle 20, the distance between the spinning nozzle 20 and the conveying net curtain 10 is 150-160 mm, and the orientation of the cold air outlet 45 is perpendicular to the spinning direction of the spinning nozzle 20. When the air conditioner works, the humidity of cold air flowing out of the cold air outlet 45 is 15-17 ℃. The second forming system 40 is arranged to further ensure the continuity of spinning, protect the forming quality of the melt-blown fabric on the conveying net curtain 10, make the filaments of the melt-blown fabric thinner, improve the filterability and reduce the resistance.

The invention has the beneficial effects that: through setting up first forming system and second forming system 40, the spout that is spouted spinneret 20 by first forming system and second forming system 40 and is cooled down gradually, makes the melt-blown fabric toughness after the shaping good, the continuity is good, further improves the gas permeability of melt-blown fabric, and the filter effect is good and reduce the resistance to make the thinner of the silk drawing of melt-blown fabric, the practicality is strong.

The above-mentioned embodiments only express one embodiment of the invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.