Drafting device for polyester non-woven fabric production

Abstract

The utility model discloses a drafting device for polyester non-woven fabric production, which comprises a melt spraying body, a plurality of melt spraying nozzles are arranged on the melt spraying body, traction parts in one-to-one correspondence with the melt spraying nozzles are mounted on the melt spraying body, a first airflow cavity and a second airflow cavity are arranged in the traction parts, and a partition plate is arranged between the first airflow cavity and the second airflow cavity. The partition plate is provided with a plurality of first air holes which are evenly distributed and enable the first air flow cavity and the second air flow cavity to be communicated, the traction component is provided with an air inlet pipe communicated with the first air flow cavity, the second air flow cavity is provided with an air outlet, the traction component is provided with a guide pipe allowing a spraying and melting nozzle to be inserted, and the tail of the guide pipe is communicated with the air outlet. The traction component is further provided with an adjusting assembly used for adjusting the opening size of the first air hole, at the moment, airflow sprayed out of the air outlet evenly surrounds the materials, shaking of the materials can be slowed down, adhesion of the materials sprayed out of the two adjacent spraying and melting nozzles is avoided, and the preparation quality of the non-woven fabric is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric production equipment, in particular to a drafting device for producing polyester non-woven fabric. Background Art

[0002] The working principle of the non-woven fabric drawing machine is mainly based on the principle of physical stretching. The equipment uses the drawing device to preliminarily process the liquid raw materials to turn them into filamentary materials. Then it is dried by the drying device to turn the filamentary materials into fibers with specific toughness.

[0003] Traditionally, Figure 1 As shown, the material is melted in the spraying cavity 10 of the spraying melt body 1 into a liquid state, and then the liquid material is sprayed outward from the spraying nozzle 101 by high pressure. In order to accelerate the solidification of the material, the spraying melt body 1 is further provided with a spraying cavity 11, wherein a spraying slot 111 connected to the spraying cavity 11 is also provided, as shown in FIG. Figure 1 As shown in the right figure in the figure, the interface of the jet slot 111 is a rectangular opening, and the opening of the spray nozzle 101 is circular, wherein the rectangular jet slot 111 solidifies multiple materials at the same time. In this process, the jet slots 111 on the upper and lower sides of the spray nozzle 101 blow the materials, which easily causes the materials to shake, causing the materials sprayed from the adjacent spray nozzles 101 to stick to each other, making the materials coarse and affecting the quality of the non-woven fabric.

[0004] Therefore, how to design a drafting device that reduces the risk of adhesion of materials sprayed from two adjacent melting nozzles has become a technical problem that needs to be urgently solved by people in this field. Utility Model Content

[0005] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the utility model is to provide a drafting device for producing polyester non-woven fabrics to solve the problem of adhesion of materials sprayed from two adjacent melt-blowing nozzles.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drafting device for producing polyester non-woven fabrics, comprising a melt spraying body, a plurality of melt spraying nozzles being arranged on the melt spraying body, a traction component corresponding to the melt spraying nozzles being installed on the melt spraying body, a first air flow cavity and a second air flow cavity being arranged in the traction component, a partition being arranged between the first air flow cavity and the second air flow cavity, a plurality of first air holes being evenly distributed and connecting the first air flow cavity and the second air flow cavity being arranged on the partition, an air inlet pipe being connected to the first air flow cavity being arranged on the traction component, an air outlet being arranged on the second air flow cavity, a guide pipe being arranged on the traction component for inserting the melt spraying nozzle, a tail end of the guide pipe being connected to the air outlet, and an adjusting component for adjusting the opening size of the first air hole being arranged on the traction component.

[0008] Furthermore, the adjustment component includes a sealing plate, on which second air holes corresponding one to one with the first air holes are provided, the sealing plate and the partition are coaxially arranged, the sealing plate and the partition are rotatably connected, and a locking mechanism for fixing the sealing plate and the partition is also provided.

[0009] Furthermore, four groups of locking mechanisms are provided and are evenly distributed around the guide tube. The locking mechanism includes a positioning stud, a slide groove and a locking nut. The cross-section of the slide groove is arc-shaped. The slide groove is coaxially arranged with the guide tube. The positioning stud is fixedly mounted on the partition. The positioning stud passes through the slide groove and extends into the first airflow cavity. The locking nut is threadedly connected to the positioning stud. When the sealing plate is fixed, the sealing plate is located between the locking nut and the partition, and the end cap of the locking nut abuts against the end wall of the sealing plate.

[0010] Furthermore, a mounting groove is provided on the spray melt body, a connecting head is provided on the traction component, an external thread is provided on the peripheral wall of the connecting head, an internal thread is provided on the inner wall of the mounting groove, and the connecting head is threadedly connected to the mounting groove.

[0011] Furthermore, the traction component includes a first traction part and a second traction part, the first traction part and the second traction part are detachably connected, the partition is fixedly installed on the second traction part, and when the first traction part and the second traction part are assembled, the first airflow cavity is located between the first traction part and the partition.

[0012] Furthermore, the guide tube includes a second guide tube, the second traction part includes an outer shell, the outer shell and the second guide tube are coaxially arranged, the partition is fixedly installed between the inner wall of the outer shell and the outer wall of the second guide tube, and the second airflow cavity is located on the second traction part.

[0013] Furthermore, the guide tube also includes a first guide tube fixedly mounted on the first traction part, the first guide tube is plugged into the first airflow cavity, when the traction component is installed, the spray nozzle is plugged into the first guide tube, and the second guide tube is plugged into the first guide tube.

[0014] Furthermore, a plug-in ring groove is provided on the first guide tube, and when the first traction part and the second traction part are assembled, the outer shell is threadedly connected to the inner wall of the first airflow cavity, and the end of the second guide tube is plugged into the plug-in ring groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model utilizes a melt sprayer to melt the material, and then the material is sprayed backward through the melt spray nozzle and the guide pipe, at this time, the external gas source enters the first air flow cavity through the air inlet pipe, and then the gas is evenly diverted to the second air flow cavity through the first air hole, at this time, the gas in the second air flow cavity is sprayed out from the air outlet and the material sprayed out from the melt spray nozzle is solidified, at this time, the air flow sprayed from the air outlet is evenly surrounded by the material, which can slow down the shaking of the material, avoid the adhesion of the materials sprayed from the two adjacent melt spray nozzles, and improve the preparation quality of the non-woven fabric;

[0016] The adjustment component can also be used to control the size of the first pore, thereby controlling the flow rate of the gas, which can be suitable for the preparation of fibers with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the prior art;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a cross-sectional view of the structure of the utility model;

[0020] Figure 4 for Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 5 It is a schematic diagram of the expansion of the utility model;

[0022] Figure 6 is a schematic diagram of the expansion of the traction component;

[0023] Figure 7 is a schematic structural diagram of the first traction unit;

[0024] Figure 8 is a top view of the second traction part;

[0025] Fig. 9 This is a schematic diagram of the second traction unit.

[0026] In the figure: 1, spray melt; 10, spray melt chamber; 101, spray melt nozzle; 11, jet chamber; 111, jet slot; 12, mounting slot; 2, traction component; 21, first traction part; 211, first air flow chamber; 212, first guide pipe; 213, plug ring groove; 214, air inlet pipe; 215, connector; 22, second traction part; 221, outer shell; 222, second guide pipe; 223, partition; 2231, first air hole; 2232, positioning stud; 224, blocking plate; 2241, second air hole; 2242, slide groove; 225, locking nut; 226, second air flow chamber; 227, air outlet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The present embodiment provides a drafting device for producing polyester nonwoven fabrics, which is mainly used to reduce the problem of materials sprayed out of two adjacent melt-blowing nozzles sticking to each other.

[0029] like Figure 2 and Figure 3 As shown, it includes a spray melt body 1, wherein the spray melt body 1 is provided with a plurality of spray melt chambers 10 for melting materials, one end of the spray melt chamber 10 is provided with a spray melt nozzle 101 for spraying materials outward, and the spray melt body 1 is also equipped with a plurality of traction components 2 aligned with the spray melt nozzle 101 one by one, wherein a guide tube for inserting the spray melt nozzle 101 is provided inside the traction component 2, and a first air flow chamber 211 and a second air flow chamber 226 are provided inside the traction component 2, wherein a partition plate 223 is fixedly installed between the first air flow chamber 211 and the second air flow chamber 226, and the partition plate 223 is provided with a plurality of first air holes 2231 distributed circumferentially around the guide tube, the first air holes 2231 realize the connection between the first air flow chamber 211 and the second air flow chamber 226, and the second air flow chamber 226 is also provided with an outlet 227 pointing to the spray melt nozzle 101 to spray materials, wherein the first air flow chamber 211 is provided with an air inlet pipe 214 connected to an external air source.

[0030] Through the above arrangement, the spray nozzle 101 is inserted into the guide tube, and the material sprayed from the spray nozzle 101 continues to be transported downward through the guide tube. At this time, the external air source is transported to the first air flow chamber 211 through the air inlet pipe 214. The gas flows in the first air flow chamber 211 and flows evenly to the second air flow chamber 226 through multiple circumferentially distributed first air holes 2231. Then, the gas is blown toward the material sprayed from the spray nozzle 101 through the air outlet 227 to solidify the material.

[0031] It is worth mentioning here that the purpose of sending the external air source into the first air flow chamber 211 through the air inlet pipe 214 and then entering the second air flow chamber 226 through the first air hole 2231 is that the gas inside the second air flow chamber 226 is more stably ejected outward from the air outlet 227; if the first air flow chamber 211 is omitted and the gas is directly sent to the second air flow chamber 226, since the gas is transported inward from the air inlet pipe 214, it will cause the gas to be disturbed in the inner wall of the second air flow chamber 226, which will affect the stability of the second air flow chamber 226; when the first air flow chamber 211 is set, although the gas in the first air flow chamber 211 is relatively chaotic, as the pressure in the first air flow chamber 211 increases, the gas will enter the second air flow chamber 226 through the first air hole 2231, thereby improving the stability of the gas in the second air flow chamber 226 and solving the problem of material fiber shaking caused by the wind blown out from the air outlet 227.

[0032] It is worth noting that a traction component 2 is mounted on each spray nozzle 101. When the material flows out of the traction component 2, the material has been solidified, thereby solving the problem of the materials sprayed from two adjacent spray nozzles 101 sticking to each other.

[0033] It is worth noting here that a plurality of first air holes 2231 are evenly distributed around the circumference of the air guide tube, and the longitudinal section of the second air flow cavity 226 is conical, wherein the air outlet 227 is located at the tip of the second air flow cavity 226, so that the air flow can blow toward the material sprayed out of the spray nozzle 101.

[0034] In order to realize the installation of the traction component 2, in this embodiment, as shown in FIG. Figure 5 and Figure 6 As shown, the spray melt body 1 is provided with a mounting groove 12, and the traction component 2 is provided with a connecting head 215, wherein the surrounding wall of the mounting groove 12 is provided with an internal thread, and the connecting head 215 is provided with an external thread, and the external thread of the connecting head 215 is threadedly connected with the internal thread of the mounting groove 12, so as to facilitate the disassembly and assembly of the traction component 2.

[0035] In order to enable the spray nozzle 101 to be inserted into the interior of the traction component 2, in this embodiment, the guide pipe includes a first guide pipe 212 inserted into the first air flow cavity 211, wherein when the traction component 2 is installed on the spray melt body 1, the spray nozzle 101 is inserted into the first guide pipe 212.

[0036] In order to control the size of the airflow ejected from the air outlet 227, in this embodiment, Figure 4 and Figure 8As shown, the first air flow chamber 211 is also provided with an adjustment component for adjusting the size of the first air hole 2231. Specifically, the adjustment component includes a sealing plate 224 which is coaxially arranged with the partition 223 and rotatably connected. The sealing plate 224 is provided with a second air hole 2241 aligned with the first air hole 2231, and is also provided with a locking mechanism for fixing the sealing plate 224 and the partition 223.

[0037] Through the above arrangement, when the first air hole 2231 and the second air hole 2241 are completely aligned, the opening of the first air hole 2231 is the largest, and thus the gas flowing out of the air outlet 227 per unit time is the largest; when the blocking plate 224 rotates, as shown in FIG. Figure 8 As shown, the first air hole 2231 and the second air hole 2241 are offset from each other, and the connecting hole diameter between the first airflow cavity 211 and the second airflow cavity 226 is reduced, thereby making the air flow flow slowly and reducing the air output of the air outlet 227, thereby being able to control the flow rate of the gas.

[0038] After the position of the blocking plate 224 is adjusted, in order to fix the blocking plate 224 and the partition plate 223, in this embodiment, Figure 8 and Fig. 9 As shown, the locking mechanism includes a positioning stud 2232, a slide groove 2242 and a locking nut 225, wherein the slide groove 2242 is provided in four groups and is evenly distributed around the circumference of the guide tube, the cross-section of the slide groove 2242 is arc-shaped and coaxial with the guide tube, the positioning stud 2232 is fixedly mounted on the partition 223 and extends through the slide groove 2242 into the first airflow cavity 211, and the locking nut 225 is threadedly connected to the positioning stud 2232.

[0039] With the above settings, Figure 4 As shown, after the position of the blocking plate 224 is adjusted to the outer wall, the locking nut 225 is rotated so that the position of the locking nut 225 on the positioning stud 2232 changes, so that the end cap of the locking nut 225 abuts against the blocking plate 224. At this time, the blocking plate 224 is clamped between the locking nut 225 and the partition plate 223, thereby achieving the fixation of the blocking plate 224.

[0040] In order to realize the installation of the adjustment assembly and the locking mechanism, in this embodiment, as shown in FIG. Figure 4 , Figure 5 and Figure 6 As shown, the traction component 2 includes a first traction portion 21 and a second traction portion 22, wherein the first traction portion 21 and the second traction portion 22 are detachably connected.

[0041] Specifically, the first traction part 21 and the second traction part 22 are connected by threads, the main body of the first airflow cavity 211 is arranged on the first traction part 21, and the partition 223 is arranged on the second traction part 22. When the first traction part 21 and the second traction part 22 are installed, the partition 223 can block the main body of the first airflow cavity 211.

[0042] Specifically, in this embodiment, the air intake pipe 214 is disposed on the first traction portion 21 .

[0043] In order to guide the material sprayed from the spray nozzle 101 to the gas outlet 227, in this embodiment, Figure 3 , Figure 6 and Fig. 9 As shown, the guide tube also includes a second guide tube 222, and the second traction part 22 also includes an outer shell 221 coaxially arranged with the second guide tube 222, wherein the partition 223 is fixedly installed on the outer wall of the second guide tube 222 and the inner wall of the outer shell 221, and the end of the second guide tube 222 is connected to the air outlet 227.

[0044] In order to realize the assembly of the second traction part 22 and the first traction part 21, in the present embodiment, the end of the outer shell 221 is provided with an external thread, the inner wall of the first airflow cavity 211 is provided with an internal thread, and the first guide tube 212 is provided with a plug-in ring groove 213 for inserting the second guide tube 222. The external thread of the outer shell 221 is threadably connected with the internal thread of the first airflow cavity 211, and at this time, the end of the second guide tube 222 is plugged into the plug-in ring groove 213.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A drafting device for producing polyester nonwoven fabrics, comprising a melt spraying body (1), on which a plurality of melt spraying nozzles (101) are arranged, characterized in that: A traction component (2) corresponding to the spray nozzle (101) is installed on the spray melt body (1), and a first airflow chamber (211) and a second airflow chamber (226) are arranged in the traction component (2), and a partition (223) is arranged between the first airflow chamber (211) and the second airflow chamber (226), and the partition (223) is provided with a plurality of first air holes (2231) which are evenly distributed and connect the first airflow chamber (211) and the second airflow chamber (226), and an air inlet pipe (214) connected to the first airflow chamber (211) is arranged on the traction component (2), and an air outlet (227) is arranged on the second airflow chamber (226), and a guide pipe for inserting the spray nozzle (101) is arranged on the traction component (2), and the tail end of the guide pipe is connected to the air outlet (227), and the traction component (2) is also provided with an adjustment component for adjusting the opening size of the first air hole (2231).

2. A drafting device for producing polyester nonwoven fabrics according to claim 1, characterized in that: The regulating assembly comprises a blocking plate (224), the blocking plate (224) being provided with second air holes (2241) corresponding one-to-one to the first air holes (2231), the blocking plate (224) being coaxially arranged with the partition plate (223), the blocking plate (224) being rotatably connected with the partition plate (223), and a locking mechanism for fixing the blocking plate (224) and the partition plate (223) is also provided.

3. A drafting device for producing polyester nonwoven fabrics according to claim 2, characterized in that: Four groups of locking mechanisms are provided and are evenly distributed around the guide tube. The locking mechanism includes a positioning stud (2232), a slide groove (2242) and a locking nut (225). The cross section of the slide groove (2242) is arc-shaped. The slide groove (2242) is coaxially arranged with the guide tube. The positioning stud (2232) is fixedly installed on the partition (223). The positioning stud (2232) passes through the slide groove (2242) and extends into the first airflow cavity (211). The locking nut (225) is threadedly connected to the positioning stud (2232). When the sealing plate (224) is fixed, the sealing plate (224) is located between the locking nut (225) and the partition (223), and the end cap of the locking nut (225) abuts against the end wall of the sealing plate (224).

4. The drafting device for producing polyester nonwoven fabric according to claim 1, characterized in that: The spray melt body (1) is provided with a mounting groove (12), the traction component (2) is provided with a connector (215), the peripheral wall of the connector (215) is provided with an external thread, the inner wall of the mounting groove (12) is provided with an internal thread, and the connector (215) is threadedly connected to the mounting groove (12).

5. A drafting device for producing polyester nonwoven fabric according to claim 1 or 4, characterized in that: The traction component (2) comprises a first traction part (21) and a second traction part (22); the first traction part (21) and the second traction part (22) are detachably connected; the partition plate (223) is fixedly mounted on the second traction part (22); when the first traction part (21) and the second traction part (22) are assembled, the first airflow chamber (211) is located between the first traction part (21) and the partition plate (223).

6. A drafting device for producing polyester nonwoven fabrics according to claim 5, characterized in that: The guide tube includes a second guide tube (222), the second traction part (22) includes an outer shell (221), the outer shell (221) and the second guide tube (222) are coaxially arranged, the partition plate (223) is fixedly installed between the inner wall of the outer shell (221) and the outer wall of the second guide tube (222), and the second airflow cavity (226) is located on the second traction part (22).

7. A drafting device for producing polyester nonwoven fabrics according to claim 6, characterized in that: The guide tube also includes a first guide tube (212) fixedly mounted on the first traction part (21), wherein the first guide tube (212) is plugged into the first airflow cavity (211); when the traction component (2) is installed, the spray nozzle (101) is plugged into the first guide tube (212), and the second guide tube (222) is plugged into the first guide tube (212).

8. A drafting device for producing polyester nonwoven fabrics according to claim 7, characterized in that: The first guide tube (212) is provided with a plug-in ring groove (213); when the first traction part (21) and the second traction part (22) are assembled, the outer shell (221) is threadedly connected to the inner wall of the first airflow cavity (211), and the end of the second guide tube (222) is plugged into the plug-in ring groove (213).

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