Non-woven fabric melt-blowing box

Abstract

The utility model discloses a non-woven fabric melt-blowing box which comprises a melt-blowing box body, a spinneret plate assembly is installed at the lower end of the melt-blowing box body, a pair of hot air pipes is installed at the upper end of the melt-blowing box body and arranged at the upper end of the melt-blowing box body in a stacked mode, and a melt cavity is formed in the lower half portion of the melt-blowing box body. A feeding groove is formed in the position, corresponding to the melt cavity, of the upper end of the melt-blowing box, a feeding pipe is further installed at the upper end of the melt-blowing box, a metal plate is further installed on the outer side of the melt-blowing box, the metal plate forms a heating and heat preservation cover on the outer side of the melt-blowing box, and the upper end of the feeding pipe penetrates through the heating and heat preservation cover. And raw materials can be better melted, subsequent spinning work is facilitated, and the use requirement can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to melt -blown equipment technical field, concretely is a kind of melt -blown box for non-woven fabric. BACKGROUND

[0002] Non-woven fabric is also called non-woven fabric, which is composed of directional or random fibers, and is a new generation of environmental protection material, which has many advantages such as moisture-proof, air-permeable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low price, recyclable and so on, and is widely used in production and life. At present, the forming of non-woven fabric is mainly carried out by melt-blowing method, and the melt-blowing method is a spinning method for rapidly stretching and solidifying the extruded high polymer melt by means of high-speed hot air flow.

[0003] The existing melt-blowing device usually sets a pair of hot air pipes in the horizontal direction to heat and insulate the melt-blowing box (as shown in Figure 9 ), which usually has a large width and a short falling distance of raw materials, and cannot achieve a good melting state, affecting the normal spinning work. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a melt-blowing box for non-woven fabric to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A melt-blowing box for non-woven fabric comprises a melt-blowing box, a spinneret assembly installed at the lower end of the melt-blowing box, a pair of hot air pipes installed at the upper end of the melt-blowing box, a pair of hot air pipes stacked at the upper end of the melt-blowing box, a melt cavity opened in the lower half of the melt-blowing box, a feed slot opened at the position corresponding to the melt cavity at the upper end of the melt-blowing box, a feed pipe installed at the upper end of the melt-blowing box, a sheet metal installed outside the melt-blowing box, a heating and insulating cover formed by the sheet metal outside the melt-blowing box, and the upper end of the feed pipe penetrates the heating and insulating cover.

[0007] As a preferred scheme, the feed pipe is provided with a bending part at the position corresponding to the hot air pipe.

[0008] As a preferred scheme, the two ends of the melt-blowing box are also provided with box body support plates.

[0009] As a preferred scheme, the spinneret assembly comprises a spinneret installed at the lower end of the melt-blowing box, a spinning cavity opened at the position corresponding to the melt cavity at the upper end of the spinneret, and a spout opened at the lower end of the spinneret, which communicates with the spinning cavity.

[0010] As a preferred scheme, a plurality of heating pipes are embedded in the melt-blowing box.

[0011] As a preferred scheme, the melt-blowing box is made of aluminum alloy material. The melt-blowing box made of aluminum alloy material has good heat conductivity, facilitates heating of the material, and has high strength, thereby prolonging the service life of the device.

[0012] As a preferred scheme, a pair of air knives are mounted at the lower end of the spinneret, and an air supply gap is formed between the air knives and the spinneret.

[0013] As a preferred scheme, an air supply groove and a plurality of air guide grooves are further formed in the melt-blowing box, the air guide grooves are in communication with the air supply groove, an air guide groove is formed at the upper end of the spinneret, air blowing holes are further formed on the spinneret, the air guide groove is in communication with the air blowing holes, and an air inlet pipe is further mounted on the outer side of the sheet metal, and the end of the air inlet pipe is in communication with the air supply groove.

[0014] Compared with the prior art, the device has the following beneficial effects: the heating pipe can heat the melt-blowing box, the length of the feeding pipe can be increased by arranging the pair of stacked hot air pipes, the length of the feeding pipe can be further increased by arranging the bending part corresponding to the position of the hot air pipe, the falling stroke of the material can be increased, the preheating time of the material can be prolonged, the material can be heated to a molten state in the subsequent process, the width of the device can be significantly reduced by arranging the stacked hot air pipes, the volume of the spinneret assembly can be reduced, the overall volume of the device can be reduced, the heating efficiency can be improved, the energy consumption can be reduced, and the use requirements can be better met. The device is reasonable, the falling stroke of the material is increased, the material can be better melted, the subsequent spinning work is facilitated, and the use requirements can be better met. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole three-dimensional structure schematic view of a melt-blowing box for non-woven fabric.

[0016] Figure 2 It is a top view structure schematic view of a melt-blowing box for non-woven fabric.

[0017] Figure 3 It is a melt-blowing box for non-woven fabric Figure 2 It is a sectional view structure schematic view of the melt-blowing box for non-woven fabric at A-A position.

[0018] Figure 4 It is a melt-blowing box for non-woven fabric Figure 2 It is a structure schematic view of the melt-blowing box for non-woven fabric at B-B position.

[0019] Figure 5 It is a three-dimensional structure schematic view of a melt-blowing box for non-woven fabric after hiding part of sheet metal.

[0020] Figure 6 It is a three-dimensional structure schematic view of a melt-blowing box for non-woven fabric at melt-blowing box position.

[0021] Figure 7 Figure 1 is a first perspective view of a melt-blowing die position of a melt-blowing box of a non-woven fabric;

[0022] Figure 8 Figure 2 is a second perspective view of a melt-blowing die position of a melt-blowing box of a non-woven fabric;

[0023] Figure 9 Figure 3 is a perspective view of a melt-blowing device of the prior art.

[0024] In the figure: 1, melt-blowing box; 11, feeding groove; 12, melt cavity; 13, spinneret; 14, spinning cavity; 15, box support plate; 16, feeding pipe; 17, hot air pipe; 18, sheet metal; 2, heating pipe; 3, air inlet pipe; 31, air supply groove; 32, air guide groove; 33, air guide groove; 34, air blowing hole; 35, air knife. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0026] Embodiment: Please refer to Figures 1-8The utility model discloses a kind of melt-blown cloth melt-blown boxes, comprising: melt-blown box 1, the lower end of the melt-blown box 1 is equipped with spinneret assembly, a pair of hot air pipes 17 is installed at the upper end of the melt-blown box 1, a pair of the hot air pipes 17 is stacked at the upper end of melt-blown box 1, melt cavity 12 is opened in the lower half of the melt-blown box 1, feed slot 11 is opened in the position corresponding melt cavity 12 of the upper end of the melt-blown box 1, feed pipe 16 is also installed at the upper end of the melt-blown box 1, sheet metal 18 is also installed outside the melt-blown box 1, the sheet metal 18 forms a heating heat preservation cover outside the melt-blown box 1, the upper end of the feed pipe 16 is through heating heat preservation cover, in the embodiment, the feed pipe 16 is provided with bending portion in the position corresponding hot air pipe 17, a plurality of heating pipes 2 are also embedded in the melt-blown box 1, and the melt-blown box 1 is made of aluminum alloy material.Heating pipe 2 can be set to heat melt-blown box 1, which facilitates heating raw materials to a molten state, by setting a pair of hot air pipes 17 stacked, the length of the feed pipe 16 can be increased, and the length of the feed pipe 16 can be further increased by setting the bending portion of the feed pipe 16 corresponding to the position of the hot air pipe 17, so as to increase the falling stroke of the material and prolong the preheating time, facilitate subsequent heating of the material to a molten state, and better meet the use requirements. By the hot air pipe 17 stacked, the width of the device can be significantly reduced, so as to reduce the volume of the spinneret assembly, thereby realizing the reduction of the overall volume of the device, improving the heating efficiency and reducing the energy consumption.

[0027] The working principle of the utility model is as follows: in actual use, the melt-blown box 1 is heated by the heating pipe 2, at the same time, hot air is introduced into the hot air pipe 17 to heat and insulate the heating protection cover, then raw materials are added into the melt-blown box 1 through the feed pipe 16, the raw materials are preheated in the feed pipe 16, then heated to a molten state in the melt-blown box 1, and finally sprayed out through the spinneret assembly, so that the melt-blown work of the non-woven fabric is completed.

[0028] In order to facilitate the installation of the melt-blown box 1, box support plates 15 are also installed at both ends of the melt-blown box 1.

[0029] As a further scheme, the spinneret assembly comprises a spinneret 13 installed at the lower end of the melt-blown box 1, the spinneret 13 is provided with a spinning cavity 14 in the position corresponding to the melt cavity 12 at the upper end, and the lower end of the spinneret 13 is provided with a nozzle communicating with the spinning cavity 14. The raw materials in a molten state enter the spinning cavity 14 and then are sprayed out from the nozzle, so that the melt-blown work of the non-woven fabric is realized.

[0030] As a further scheme, a pair of air knives 35 are installed at the lower end of the spinneret 13, and an air supply gap is formed between the air knives 35 and the spinneret 13, and an air supply groove 31 and a plurality of air guide grooves 32 are formed in the melt-blowing box 1, the air guide grooves 32 are communicated with the air supply groove 31, an air guide groove 33 is formed at the upper end of the spinneret 13, and a blowing hole 34 is formed on the spinneret 13, the air guide groove 33 is communicated with the air guide grooves 32 and the blowing hole 34, and an air inlet pipe 3 is further installed outside the plate 18, and the end of the air inlet pipe 3 is communicated with the air supply groove 31, in the embodiment, the air inlet pipe 3 is communicated with an external air blower.

[0031] When spinning, air is supplied into the air inlet pipe 3 by the air blower, then enters the air supply groove 31, and then enters the air guide groove 32, and then enters the air guide groove 33, and then enters the blowing hole 34 and is supplied into the air knives 35, and finally, is blown out from the air supply gap between the air knives 35 and the spinneret 13, so that the raw material is conveniently blown off, and the non-woven fabric is conveniently processed and formed.

[0032] In the utility model, the terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only the relationship words determined for the convenience of describing the structural relationship of the components or elements of the utility model, and cannot be understood as the limitation of the utility model to any component or element.

Claims

1. A nonwoven meltblown fabric box, characterized in that, include: A meltblown box (1) is provided with a spinneret assembly at the lower end of the meltblown box (1) and a pair of hot air pipes (17) at the upper end of the meltblown box (1). The pair of hot air pipes (17) are stacked at the upper end of the meltblown box (1). A melting chamber (12) is provided in the lower half of the meltblown box (1). A feed groove (11) is provided at the upper end of the meltblown box (1) corresponding to the melting chamber (12). A feed pipe (16) is also provided at the upper end of the meltblown box (1). A sheet metal (18) is also provided on the outside of the meltblown box (1). The sheet metal (18) forms a heating and heat preservation cover on the outside of the meltblown box (1). The upper end of the feed pipe (16) passes through the heating and heat preservation cover.

2. The nonwoven meltblown box according to claim 1, characterized in that: The feed pipe (16) has a bend at the position corresponding to the hot air pipe (17).

3. The nonwoven meltblown box according to claim 2, characterized in that: The meltblown box (1) is also equipped with box support plates (15) at both ends.

4. A nonwoven meltblown fabric box according to claim 3, characterized in that: The spinneret assembly includes a spinneret (13) installed at the lower end of the meltblown box (1). A spinneret cavity (14) is provided at the upper end of the spinneret (13) corresponding to the position of the melt chamber (12). A nozzle is provided at the lower end of the spinneret (13), and the nozzle is connected to the spinneret cavity (14).

5. A nonwoven meltblown fabric box according to claim 4, characterized in that: The meltblown box (1) is also equipped with multiple sets of heating tubes (2).

6. A nonwoven meltblown fabric box according to claim 5, characterized in that: The meltblown box (1) is made of aluminum alloy.

7. A nonwoven meltblown fabric box according to claim 6, characterized in that: A pair of air knives (35) are installed at the lower end of the spinneret (13), and an air supply gap is formed between the air knives (35) and the spinneret (13).

8. A nonwoven meltblown fabric box according to claim 7, characterized in that: The meltblown box (1) is also provided with an air supply trough (31) and several air guide troughs (32). The air guide troughs (32) are connected to the air supply troughs (31). The upper end of the spinneret (13) is provided with an air inlet trough (33). The spinneret (13) is also provided with an air blowing hole (34). The air inlet trough (33) is connected to the air guide troughs (32) and the air blowing hole (34). An air inlet pipe (3) is also installed on the outside of the sheet metal (18). The end of the air inlet pipe (3) is connected to the air supply trough (31).

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