Flexible spunbonded non-woven fabric production device

Abstract

The utility model relates to the field of non-woven fabrics, in particular to a flexible spunbond non-woven fabric production device. The flexible spunbond non-woven fabric production device comprises a spunbond spinning unit, a fiber web forming unit, a hot air web fixing unit and a hot rolling web fixing unit, and the bottom of the spunbond spinning unit is located above the fiber web forming unit. The hot air net fixing unit and the hot rolling net fixing unit are arranged on different discharging sides of the fiber net forming unit respectively. According to the utility model, the problems of low production efficiency in the consolidation link of the fiber web and high replacement cost of the web fixing unit in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the field of nonwoven fabrics, in particular to a flexible spunbonded nonwoven fabric production device. Background Art

[0002] The spunbond method is a technology that melts polymer raw materials, stretches them through airflow to generate fibers, separates them into webs, and finally uses different consolidation methods such as hot rolling and hot air to make non-woven fabrics with different properties and wide applications. Due to its one-step production process and low cost, it has been widely used in the fields of medical care, water treatment, etc. However, in the existing spunbond nonwoven fabric production units, the consolidation of the fiber web is usually achieved by additional units, which reduces production efficiency. Even if the fixed-net unit components are equipped to form a unit group, if the fixed-net unit components are to be replaced, they are large and heavy and difficult to move and disassemble, which will consume a lot of manpower and energy and cannot meet the diversity of actual production needs. Utility Model Content

[0003] The purpose of the utility model is to overcome the problems of low production efficiency in the consolidation link of the fiber web and high replacement cost of the consolidation unit in the prior art, and to provide a flexible spunbond nonwoven fabric production device, which improves the consolidation link of the fiber web and the production efficiency of the flexible spunbond nonwoven fabric and reduces the production cost by simultaneously arranging a hot air consolidation unit and a hot rolling consolidation unit, and by optimizing the structure and connection method of the spunbond spinning unit, the fiber web forming unit, the hot rolling consolidation unit and the hot air consolidation unit.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a flexible spunbond nonwoven fabric production device, wherein the device comprises: a spunbond spinning unit, a fiber web forming unit, a hot air web fixing unit and a hot rolling web fixing unit, the bottom of the spunbond spinning unit is located above the fiber web forming unit, and the hot air web fixing unit and the hot rolling web fixing unit are respectively arranged on different discharge sides of the fiber web forming unit; the fiber web forming unit comprises: a web forming curtain, which is arranged below one side of the discharge of the spunbond spinning unit and forms a closed annular structure, and a horizontal structure is formed at the upper part for collecting fibers and stacking them into a web;

[0005] The under-net suction device is arranged on the inner side of the upper part of the net-forming curtain and is located directly below the discharge side of the spunbond spinning unit to promote the deposition of fibers into a net;

[0006] The roller is arranged inside the mesh curtain and is used to drive the mesh curtain to rotate and form a closed ring structure;

[0007] And a net curtain running direction controller, which is connected with the roller and is used for controlling the rotating direction of the roller.

[0008] Preferably, the spunbond spinning unit comprises: a feeding hopper, a screw extruder, a metering pump, a spinning assembly and a wide-slit drawing machine, and the spunbond spinning unit is connected through a pipeline in the order of the feeding hopper, the screw extruder, the metering pump, the spinning assembly and the wide-slit drawing machine; one side of the discharge end of the wide-slit drawing machine is located at the lower end of the spunbond spinning unit.

[0009] Preferably, the spunbond spinning unit further comprises a side-blowing air cooling device, which is connected to the spinning assembly and is used to cool the material after passing through the spinning assembly.

[0010] Preferably, the hot air web fixing unit comprises: a rotary hot air drying cylinder and a winder.

[0011] Preferably, a hot air drying cylinder is provided at one side of the feeding end of the rotary hot air web fixing unit, and the output of the fiber web forming unit passes through the rotary hot air drying cylinder and is then recovered by a winder.

[0012] Preferably, the hot-rolling mesh fixing unit comprises: a hot-rolling roller and a winder.

[0013] Preferably, a hot-rolling roller is provided at one side of the feeding end of the hot-rolling web-fixing unit, and the output of the fiber web forming unit passes through the hot-rolling roller and is recovered by a winder.

[0014] Preferably, the number of the feeding hopper, the screw extruder and the metering pump is one or more.

[0015] Preferably, the number of the feeding hopper, the screw extruder and the metering pump is 2 groups.

[0016] Preferably, the two groups of feeding hoppers, screw extruders and metering pumps are arranged relative to each other.

[0017] Through the above technical scheme, the flexible spunbond nonwoven fabric production device of the utility model solves the problems of low production efficiency in the fiber web consolidation link and high replacement cost of the web consolidation unit in the prior art, improves the production efficiency of the flexible spunbond nonwoven fabric and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a flexible spunbonded nonwoven fabric production device of the utility model.

[0019] Description of Reference Numerals

[0020] 1. Feeding hopper 2. Screw extruder 3. Metering pump 4. Spinning assembly

[0021] 5. Side-blowing cooling device 6. Wide-slit drawing machine 7. Net curtain

[0022] 8. Air suction device under the net 9. Roller 10. Net curtain running direction controller

[0023] 11. Rotary hot air drying cylinder 12. Hot rolling roller 13. Winding machine DETAILED DESCRIPTION

[0024] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0025] Figure 1 It is a structural schematic diagram of a flexible spunbonded nonwoven fabric production device of the utility model.

[0026] like Figure 1 As shown, the utility model provides a flexible spunbond nonwoven fabric production device, wherein the device comprises: a spunbond spinning unit, a fiber web forming unit, a hot air fixing unit and a hot rolling fixing unit, the bottom of the spunbond spinning unit is located above the fiber web forming unit (preferably directly above), the hot air fixing unit and the hot rolling fixing unit are respectively arranged on different discharge sides of the fiber web forming unit; the fiber web forming unit comprises: a web curtain 7, which is arranged below the discharge side of the spunbond spinning unit (preferably directly below ), and forms a closed ring structure, and forms a horizontal structure at the upper part, which is used to collect fibers and stack them into a net; an under-net suction device 8, which is arranged on the inner side of the upper part of the net-forming curtain 7, and is located directly below the discharge side of the spunbond spinning unit, for promoting the deposition of fibers into a net; a roller 9, which is arranged on the inner side of the net-forming curtain 7, for driving the net-forming curtain 8 to rotate, and making the net-forming curtain 7 form a closed ring structure; and a net curtain running direction controller 10, which is connected to the roller 9, for controlling the rotation direction of the roller 9.

[0027] According to the utility model, preferably, the rollers 9 used to drive the web curtain 7 are preferably more than 4, so as to ensure that sufficient tension is provided for the web curtain 7 arranged around the rollers. At the same time, by arranging the upper rollers 9 on the same horizontal plane, the web curtain 7 forms a platform on the upper part of the fiber web forming unit, which can receive the fiber material from the spunbond spinning unit and smoothly transport the fiber material to the hot rolling web fixing unit or the hot air web fixing unit. In addition, different consolidation methods can be selected according to the requirements for the performance and use of the non-woven fabric, and the rotation direction of the rollers 9 can be changed through the web curtain running direction controller 10, thereby changing the transmission direction of the web curtain 7 and the discharge direction of the fiber material on the web curtain 7, thereby completing the switching of different consolidation methods.

[0028] The web-forming curtain 7 may be a mesh structure, so that the suction device 8 under the net can absorb the fiber material from the spunbond spinning unit, so that the platform formed by the web-forming curtain 7 can better collect the fiber material.

[0029] According to the utility model, preferably, the spunbond spinning unit comprises: a feeding hopper 1, a screw extruder 2, a metering pump 3, a spinning assembly 4 and a wide slit drawing machine 6, and the spunbond spinning unit is connected through a pipeline in the order of the feeding hopper 1, the screw extruder 2, the metering pump 3, the spinning assembly 4 and the wide slit drawing machine 6; one side of the discharge end of the wide slit drawing machine 6 is located at the lowermost end of the spunbond spinning unit.

[0030] According to the utility model, preferably, the spunbond spinning unit further includes a side-blowing air cooling device 5 , and the side-blowing air cooling device 5 is connected to the spinning assembly 4 and is used for cooling the material after passing through the spinning assembly 4 .

[0031] According to the utility model, the side-blowing air cooling device 5 can be set to a single-side blowing structure or a double-side blowing structure.

[0032] According to the utility model, during preparation, the raw material is put into the feed hopper 1, and is extruded in sequence through the screw extruder 2 and the spinning assembly 4 connected to the feed hopper 1. The extruded material is cooled by the side-blowing cooling device 5 connected to the spinning assembly 4, and enters the wide-slit drawing machine 6 located at the bottom of the spunbond spinning unit to be drawn to obtain fibers. The extrusion rate is controlled by the metering pump 3 connected to the screw extruder 2.

[0033] According to the utility model, preferably, the hot air web fixing unit comprises: a round web hot air drying cylinder 11 and a winder 13 .

[0034] According to the utility model, preferably, the rotary hot air drying cylinder 11 is provided at one side of the feeding end of the hot air web fixing unit, and the output of the fiber web forming unit passes through the rotary hot air drying cylinder 11 and is recovered by the winding machine 13 .

[0035] The round net hot air drying cylinder 11 may be a hollow cylindrical structure, and a grid or lattice structure for air outlet or air inlet may be provided on the surface of the cylinder; a hot air blower may be provided inside the drying cylinder and an exhaust fan may be provided outside the drying cylinder, or an exhaust fan may be provided inside the drying cylinder and a hot air blower may be provided outside the drying cylinder; in addition, the edges of the round net drying cylinder may be provided with spikes, which may be suitable for thick products to prevent lateral shrinkage of the materials.

[0036] In the present invention, the web is bonded and fixed by a rotary hot air drying cylinder 11, and the bonded web is sent to a winder 13 for winding after trimming, and finally forms a hot air spunbonded nonwoven fabric. The hot air bonding unit is suitable for the preparation of high-strength and fluffy nonwoven materials.

[0037] According to the utility model, preferably, the hot rolling mesh fixing unit comprises: a hot rolling roller 12 and a winder 13 .

[0038] According to the utility model, preferably, the hot rolling roller 12 is provided at one side of the feed end of the hot rolling mesh fixing unit, and the discharge of the fiber web forming unit passes through the hot rolling roller 12 and is then recovered by the winder 13 .

[0039] The structure of the hot rolling rollers 12 may be a structure in which one or more pairs of rollers are arranged in parallel.

[0040] The web is bonded and fixed by hot calender rollers 12, and the bonded web is sent to a winder 13 for winding after trimming, and finally forms a hot calendered spunbond nonwoven fabric. The hot calendering unit is suitable for preparing high-strength thin nonwoven materials.

[0041] In the present invention, the deposition of fibers into a web can be promoted by the under-net suction device 8, and the under-net suction device 8 is preferably arranged below the wide-slit drawing machine 6 (more preferably directly below).

[0042] According to the utility model, preferably, the number of the feeding hopper 1, the screw extruder 2 and the metering pump 3 is more than one group.

[0043] According to the utility model, preferably, the number of the feeding hopper 1, the screw extruder 2 and the metering pump 3 is 2 groups.

[0044] By arranging a plurality of groups of the feeding hoppers 1, the screw extruders 2 and the metering pumps 3 in the spunbond spinning unit, the same or different raw materials can be respectively put into different feeding hoppers for production according to demand.

[0045] According to the utility model, preferably, the two groups of the feeding hopper 1, the screw extruder 2 and the metering pump 3 are arranged relative to each other.

[0046] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including combining various technical features in any other suitable manner, and these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A flexible spunbond nonwoven fabric production device, characterized in that: The device comprises: a spunbond spinning unit, a fiber web forming unit, a hot air web fixing unit and a hot rolling web fixing unit, wherein: The bottom of the spunbond spinning unit is located above the fiber web forming unit, and the hot air fixing unit and the hot rolling fixing unit are respectively arranged on different discharge sides of the fiber web forming unit; The fiber web forming unit comprises: a web curtain (7), which is arranged below the discharge side of the spunbond spinning unit and forms a closed annular structure, and a horizontal structure is formed at the upper part for collecting fibers and stacking them into a web; An under-net suction device (8), which is arranged on the inner side of the upper part of the net-forming curtain (7) and is located below the discharge side of the spunbond spinning unit, and is used to promote the deposition of fibers into a net; A roller (9) is arranged on the inner side of the web-forming curtain (7) and is used to drive the web-forming curtain (7) to rotate and make the web-forming curtain (7) form a closed annular structure; And a net curtain running direction controller (10), which is connected to the roller (9) and is used to control the rotation direction of the roller (9).

2. The flexible spunbonded nonwoven fabric production device according to claim 1, characterized in that: The spunbond spinning unit comprises: a feed hopper (1), a screw extruder (2), a metering pump (3), a spinning assembly (4) and a wide-slit drafting machine (6), and the spunbond spinning unit is connected to the feed hopper (1), the screw extruder (2), the metering pump (3), the spinning assembly (4) and the wide-slit drafting machine (6) in this order through a pipeline; One side of the discharge end of the wide-slit drawing machine (6) is located at the lowermost end of the spunbond spinning unit.

3. The flexible spunbonded nonwoven fabric production device according to claim 2, characterized in that: The spunbond spinning unit further comprises a side-blowing air cooling device (5), which is connected to the spinning assembly (4) and is used to cool the material after passing through the spinning assembly (4).

4. The flexible spunbonded nonwoven fabric production device according to claim 1, characterized in that: The hot air web fixing unit comprises: a round web hot air drying cylinder (11) and a winding machine (13).

5. The flexible spunbonded nonwoven fabric production device according to claim 4, characterized in that: The round screen hot air drying cylinder (11) is arranged on one side of the feeding end of the hot air screen fixing unit.

6. The flexible spunbonded nonwoven fabric production device according to claim 1, characterized in that: The hot-rolling mesh fixing unit comprises: a hot-rolling roller (12) and a winding machine (13).

7. The flexible spunbonded nonwoven fabric production device according to claim 6, characterized in that: The hot rolling roller (12) is arranged on one side of the feeding end of the hot rolling mesh fixing unit.

8. The flexible spunbonded nonwoven fabric production device according to claim 2, characterized in that: The number of the feeding hopper (1), the screw extruder (2) and the metering pump (3) is more than one set.

9. The flexible spunbonded nonwoven fabric production device according to claim 2, characterized in that: The number of the feeding hopper (1), the screw extruder (2) and the metering pump (3) is 2 groups.

10. The flexible spunbonded nonwoven fabric production device according to claim 9, characterized in that: The positional relationship between the two groups of the feeding hoppers (1), the screw extruders (2) and the metering pumps (3) is a relative arrangement.

Images