CN-121992516-A - Melt-blown cloth spinneret plate

Abstract

The invention relates to the technical field of chemical filament processing, in particular to a melt-blown fabric spinneret plate, which comprises a spinneret plate main body, a first fixing plate fixedly arranged on the spinneret plate main body and a fixing frame rotatably arranged on the first fixing plate, wherein a plurality of second rotating shafts are rotatably connected to the fixing frame; and after the action force of a part of air flow blown by the cooling fan is reduced after the air flow is blocked by the surface of the filter screen, the buffered air flow is blown to the chemical filaments which are close to the upper part and are just extruded for a long time through a plurality of straight holes, and the part of air flow is mild and can be used for carrying out mild cooling on the easy-to-break chemical filaments which are just extruded for a long time.

Inventors

• HANG HAIBIAO
• MAO WEIRU
• SHENG XIAOPING
• TANG YUFENG
• JIN SHENG
• DAI ZHICHENG
• YIN LIANG
• LU YIFAN
• PAN LIYU
• TAN XIAODONG
• SUN ZIYUE
• XIA LIANG
• HE YILIANG
• XU CHENYI
• HUA XUN
• WANG WENJIE
• CHEN YAO
• ZHANG XIANG
• JIN TAO
• LI MEIHONG
• ZHOU QIUYE

Assignees

• 常州纺兴精密机械有限公司
• 常州喷丝板厂有限公司

Dates

Publication Date

20260508

Application Date

20260316

Claims (10)

1. 1. The melt-blown fabric spinneret plate is characterized by comprising a spinneret plate main body (1), a first fixing plate (6) fixedly installed on the spinneret plate main body (1) and a fixing frame (10) rotatably installed on the first fixing plate (6), wherein a plurality of second rotating shafts (12) are rotatably connected to the fixing frame (10), one end of each second rotating shaft (12) is fixedly connected with a filter screen (13), a plurality of straight holes (14) uniformly distributed are formed in each filter screen (13), a containing groove (16) is formed in each filter screen (13), a first guide rod (17) is slidably connected to the inner wall of each containing groove (16), a first reset spring (19) is sleeved on the outer wall of each first guide rod (17), one end of each first reset spring (19) is fixedly connected with a fixing sheet (20), a second rotating shaft (21) is fixedly connected to each fixing sheet (20), one end of each first guide rod (17) is rotatably provided with a first ball bearing frame (18), and one end of each fixing sheet (20) is fixedly connected with a first guide rod (11), and each second guide rod (11) is fixedly connected with a first guide track (11).
2. 2. The spinneret plate for melt-blown fabric according to claim 1, wherein the arc track groove (22) is arranged as an arc track, a plurality of uniformly distributed abutting blocks (23) are fixedly connected to the inner wall of the arc track groove (22), the abutting blocks (23) are arranged as a hemispherical shape, and the first balls (18) are slidably mounted on the inner wall of the arc track groove (22).
3. 3. The melt-blown spinneret plate according to claim 1, wherein the outer wall of the second fixing plate (11) is fixedly connected with two limiting rods (15) for limiting the rotation direction of the filter screen (13).
4. 4. The melt-blown fabric spinneret plate as claimed in claim 1, wherein one end of the filter screen (13) is fixedly connected with a transmission gear (37), one end of the transmission gear (37) is rotatably mounted on the second fixing plate (11), a third fixing plate (24) is fixedly connected to the second fixing plate (11), a first guide rod (25) is fixedly connected to the third fixing plate (24), a second return spring (26) is sleeved on the outer wall of the first guide rod (25), a sliding block (27) is fixedly connected to one end of the second return spring (26), and the sliding block (27) is slidably sleeved on the first guide rod (25).
5. 5. A melt-blown spinneret plate as claimed in claim 4, wherein the outer wall of the sliding block (27) is fixedly connected with a moving frame (28), the moving frame (28) is a mouth-shaped frame, the outer wall of the moving frame (28) is fixedly connected with a transmission rack (29), and the transmission rack (29) is meshed with a transmission gear (37).
6. 6. The melt-blown fabric spinneret plate as set forth in claim 5, wherein a second guide rod (30) is fixedly connected to the inner wall of the moving frame (28), a sliding frame (32) is sleeved on the second guide rod (30) in a sliding manner, a third return spring (31) is fixedly connected to the outer wall of the sliding frame (32), the third return spring (31) is sleeved on the second guide rod (30), and the other end of the third return spring (31) is fixedly connected with the inner wall of the moving frame (28).
7. 7. The melt-blown fabric spinneret plate as set forth in claim 6, wherein a third guide rod (33) is fixedly connected to the inner wall of the sliding frame (32), a scraper (35) is slidably connected to the third guide rod (33), a fourth return spring (34) is sleeved on the third guide rod (33), one end of the fourth return spring (34) is fixedly connected to the outer wall of the scraper (35), and the other end of the fourth return spring (34) is fixedly connected to the inner wall of the sliding frame (32).
8. 8. A melt-blown spinneret plate as claimed in claim 7, characterized in that the outer wall of the scraper (35) is fixedly connected with a scraper brush (36) for cleaning the filter screen (13).
9. 9. The melt-blown fabric spinneret plate as claimed in claim 1, wherein a plurality of evenly distributed spinneret holes (2), mounting holes (3) and fixing grooves (4) are formed in the outer wall of the spinneret plate main body (1), fixing bolts (5) are connected with the inner wall of each fixing groove (4) in a threaded mode, first fixing plates (6) are sleeved on the outer walls of the fixing bolts (5), and fixing nuts (7) are connected with the outer walls of the fixing bolts (5) in a threaded mode.
10. 10. The melt-blown fabric spinneret plate as claimed in claim 1, wherein a first rotating shaft (8) is rotatably arranged on the outer wall of the first fixing plate (6), a torsion spring (9) is sleeved on the first rotating shaft (8), one end of the torsion spring (9) is fixedly connected with the outer wall of the fixing frame (10), and one end of the first rotating shaft (8) is fixedly connected with the outer wall of the fixing frame (10).

Description

Melt-blown cloth spinneret plate Technical Field The invention relates to the technical field of chemical filament processing, in particular to a melt-blown fabric spinneret plate. Background The melt-blown cloth is a superfine fiber non-woven cloth which is made from polypropylene as a main raw material through a melt-blown non-woven cloth process, a spinneret plate is the most critical and precise core component in the production of chemical filaments by melt-blown cloth, and is a round or rectangular metal plate which is usually made of special stainless steel, and the core function of the melt-blown cloth is to convert high-pressure and high-temperature molten polypropylene polymer into continuous and uniform superfine fiber flow through micropores densely arranged on the surface of the melt-blown polypropylene polymer. When the polypropylene polymer in a high-temperature molten state is extruded and sprayed from a spinning nozzle, the sprayed chemical filaments are not completely solidified into linear solids from liquid fluid, so that a cooling fan is usually arranged at two sides of the spinning nozzle to blow air against the sprayed chemical filaments, but when the air flow blown by the cooling fan directly blows the non-solidified chemical filaments, the chemical filaments are easily influenced by wind force to deform or even break, the cooling air is too small to effectively cool and solidify the chemical filaments, and when the chemical filaments are solidified by air cooling, the chemical filaments which are just extruded from the spinning nozzle are fragile and easy to deform and break, and the chemical filaments after being extruded for a period of time are tough, so that the chemical filaments with different extrusion times are difficult to be cooled and protected in a segmented manner by the conventional spinneret. Disclosure of Invention The invention provides a melt-blown fabric spinneret plate, which has the beneficial effect of being convenient for carrying out sectional cooling protection on chemical filaments in different extrusion time periods, and solves the problems that the chemical filaments are easily deformed and even broken due to the influence of wind power when the air flow blown by a cooling fan in the background art directly blows the unset chemical filaments, and the conventional spinneret plate is difficult to carry out sectional cooling and protection on the chemical filaments in different extrusion time periods. In order to achieve the above purpose, the technical scheme is that the melt-blown fabric spinneret plate comprises a spinneret plate main body, a first fixing plate fixedly arranged on the spinneret plate main body and a fixing frame rotatably arranged on the first fixing plate, wherein a plurality of second rotating shafts are rotatably connected to the fixing frame, one ends of the second rotating shafts are fixedly connected with a filter screen, a plurality of straight holes which are uniformly distributed are formed in the filter screen, a storage groove is formed in the filter screen, a first guide rod is slidably connected to the inner wall of the storage groove, a first reset spring is sleeved on the outer wall of the first guide rod, one end of the first reset spring is fixedly connected with a fixing plate, a second guide rod is fixedly connected to the fixing plate, one end of the first guide rod is rotatably provided with a first ball, the outer wall of the fixing frame is fixedly connected with a second fixing plate, and an arc track groove for guiding the moving direction of the first ball is formed in the second fixing plate. Preferably, the arc track groove is set to the arc track, a plurality of conflict pieces that distribute evenly are fixedly connected with to the inner wall in arc track groove, conflict piece sets to the hemisphere appearance, first ball slidable mounting is in arc track groove inner wall. Preferably, the outer wall of the second fixing plate is fixedly connected with two limiting rods for limiting the rotation direction of the filter screen. Preferably, one end fixedly connected with drive gear of filter screen, drive gear's one end is rotated and is installed on the second fixed plate, fixedly connected with third fixed plate on the second fixed plate, fixedly connected with first guide bar on the third fixed plate, the outer wall cover of first guide bar is equipped with second reset spring, the one end fixedly connected with sliding block of second reset spring, the sliding block slip cap is located on the first guide bar. Preferably, the outer wall fixedly connected with of sliding block removes the frame, it sets up to the mouth-shaped frame to remove the frame, the outer wall fixedly connected with transmission rack of frame, transmission rack and transmission gear intermeshing. Preferably, the inner wall fixedly connected with second guide bar of moving frame, the slip cover is equipped with the slip frame on the se