Polyethylene tow air cooling structure

Abstract

The utility model belongs to the technical field of polyethylene production, and particularly relates to a polyethylene tow air cooling structure which comprises a spinning nozzle used for extruding polyethylene tows, a plurality of tow outlets are formed in the bottom of the spinning nozzle, an annular sleeve is installed at the bottom of the spinning nozzle, a butt joint ring is fixedly installed at the top of the outer surface of the annular sleeve, and the butt joint ring is fixedly connected with the butt joint ring. A partition plate is arranged in the annular sleeve, a plurality of butt joint holes are formed in the top of the partition plate, and a sliding assembly is arranged on the outer surface of the partition plate. Polyethylene tows are extruded through the yarn outlet in the bottom of the spinning nozzle and penetrate through the butt-joint holes in the partition plate, so that the polyethylene tows are separated in the butt-joint holes in the partition plate, and the situation that the polyethylene tows shake due to blowing of cold air to cause adhesion is avoided; and the height of the partition plate can be adjusted according to the polyethylene tows with different thicknesses, so that the polyethylene tows with different thicknesses are separated at different height positions.

Description

Technical Field

[0001] This utility model belongs to the field of polyethylene production technology, specifically a polyethylene filament bundle air-cooling structure. Background Technology

[0002] Polyethylene tow is a fibrous product made of polyethylene material. Polyethylene tow is produced by adding raw materials into an extruder, heating and melting them, and then extruding the molten polyethylene into a spinneret under the push of a screw. The polyethylene melt is extruded through the holes in the spinneret to form filamentous polyethylene tows.

[0003] When polyethylene filaments are extruded from the spinneret, they are in a high-temperature viscous flow state and need to be cooled and solidified. Common cooling methods include air cooling and water cooling. Air cooling uses cold air to blow on the filaments to cool them down quickly. Air cooling is generally used for finer polyethylene filaments.

[0004] Existing technology uses an annular ring installed at the bottom of a polyethylene tow spinneret. Cold air is introduced into the annular ring to cool the polyethylene tow passing through it. However, the polyethylene spinneret extrudes multiple polyethylene tows at once. Since the polyethylene tows are relatively thin, when the cold air blows on them to cool them, it causes the multiple polyethylene tows to come together. This results in the parts of the polyethylene tows that are not in contact with the cold air coming into contact, causing the multiple polyethylene tows to stick together and increasing the defect rate of the polyethylene tows. Therefore, a polyethylene tow air-cooling structure is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a polyethylene filament bundle air-cooling structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is a polyethylene filament air-cooled structure, including a spinneret for extruding polyethylene filaments, a plurality of filament outlets at the bottom of the spinneret, an annular sleeve installed at the bottom of the spinneret, a docking ring fixedly installed on the top of the outer surface of the annular sleeve, a partition plate provided inside the annular sleeve, a plurality of docking holes at the top of the partition plate, and a sliding component provided on the outer surface of the partition plate for adjusting the height of the partition plate.

[0007] An air inlet is provided on the left side of the outer surface of the annular sleeve. An installation block is installed on the left side of the air inlet. An air duct is provided at the bottom of the installation block. A ventilation pipe is installed at the bottom of the air duct. An insertion interface is provided at the top of the installation block. A wind baffle is installed inside the insertion interface. An adjustment component is provided on the left side of the wind baffle for adjusting the position of the wind baffle inside the installation block.

[0008] Preferably, the partition plate is positioned directly below the spinneret, and the positions of the plurality of filament outlets correspond one-to-one with the positions of the plurality of docking holes.

[0009] Preferably, the sliding assembly includes a slide rail fixedly mounted on the inner wall of the annular sleeve, a slider slidably mounted inside the slide rail, a lead screw threadedly connected inside the slider, the top of the lead screw rotatably mounted on the top of the inner wall of the slide rail, the bottom of the lead screw penetrating the bottom of the inner wall of the slide rail and extending to the outside of the slide rail, and a rotating block is mounted on the bottom of the lead screw.

[0010] Preferably, the slider is fixedly installed on the outer surface of the partition plate, and two slide rails are provided, which are symmetrically distributed on both sides of the partition plate.

[0011] Furthermore, two slide rails are installed on the inner wall of the annular sleeve. By rotating the lead screw inside one of the slide rails, the slider can move the partition plate up and down along the slide rail.

[0012] Preferably, the adjustment component includes a connecting block fixedly installed on the top left side of the windshield. The top of the connecting block has a threaded hole, and a threaded rod is threadedly connected inside the threaded hole. The bottom of the threaded rod is rotatably installed on the top of the mounting block, and the top of the threaded rod extends through to the outside of the connecting block to install a rotating block.

[0013] Preferably, a filter screen is installed on the inner wall of the mounting block, the baffle plate is located on the left side of the filter screen, and there are two mounting blocks and two air inlets. The two mounting blocks and air inlets are symmetrically distributed on the outer surface of the annular sleeve.

[0014] Furthermore, the filter screen is installed closer to the air inlet than the baffle plate. Thus, when the baffle plate is adjusted to different sizes of the air inlet diameter of the air duct, the filter screen can filter the cold air blown into the annular sleeve.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, polyethylene filaments are extruded through the filament outlet at the bottom of the spinneret. The polyethylene filaments pass through the docking holes on the separator plate, so that multiple polyethylene filaments are separated in the docking holes in the separator plate. This prevents the polyethylene filaments from shaking and sticking together due to cold air blowing. In addition, the height of the separator plate can be adjusted according to the polyethylene filaments of different thicknesses, so that the polyethylene filaments of different thicknesses are separated at different height positions.

[0017] 2. In this utility model, polyethylene filament bundles are air-cooled. The height of the baffle plate can be adjusted within the mounting block using the adjustment component, thereby adjusting the diameter of the air duct. This prevents the air duct diameter from being too large, which would cause the blown cold air to be too strong and cause the polyethylene filament bundles to shake and stick together. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the partition plate structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the filter screen structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the windbreak structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the annular sleeve structure of this utility model.

[0024] Legend:

[0025] In the diagram: 1. Spinneret; 11. Outlet; 2. Annular sleeve; 21. Connecting ring; 22. Air inlet; 3. Partition plate; 31. Connecting hole; 32. Sliding assembly; 301. Slide rail; 302. Slider; 303. Lead screw; 304. Rotating block one; 4. Mounting block; 41. Air duct; 42. Ventilation pipe; 43. Baffle plate; 44. Adjusting assembly; 401. Connecting block; 402. Threaded rod; 403. Rotating block two; 5. Filter screen. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5As shown, a polyethylene filament air-cooled structure includes a spinneret 1 for extruding polyethylene filaments. The bottom of the spinneret 1 has multiple filament outlets 11. An annular sleeve 2 is installed at the bottom of the spinneret 1. A docking ring 21 is fixedly installed on the top of the outer surface of the annular sleeve 2. A partition plate 3 is provided inside the annular sleeve 2. The top of the partition plate 3 has multiple docking holes 31. A sliding component 32 is provided on the outer surface of the partition plate 3. The sliding component 32 is used to adjust the height of the partition plate 3.

[0028] The separator plate 3 is located directly below the spinneret 1, and the positions of the multiple filament outlets 11 correspond one-to-one with the positions of the multiple docking holes 31.

[0029] Furthermore, by fixing a docking ring 21 to the top of the outer surface of the annular sleeve 2, the docking ring 21 can be connected to the bottom of the spinneret 1. The annular sleeve 2 is fixedly installed to the bottom of the spinneret 1 by bolt thread connection between the docking ring 21 and the inside of the spinneret 1, so that the polyethylene filaments extruded from the filament outlet 11 pass through the annular sleeve 2. The internal partition plate 3 of the annular sleeve 2 can be adjusted up and down by sliding component 32. The multiple docking holes 31 opened on the top of the partition plate 3 correspond one-to-one with the multiple filament outlets 11, so that the extruded polyethylene filaments are passed through the corresponding docking holes 31. The partition plate 3 can be adjusted to be located in the annular sleeve 2 according to the different thicknesses of polyethylene filaments to avoid the polyethylene filaments sticking together when blown by cold air.

[0030] It should be noted that the spinneret 1 is installed at the head end of the polyethylene tow extruder, which can extrude molten polyethylene into polyethylene tow. The internal structure of the spinneret 1 is existing technology, and its working principle is common knowledge to those skilled in the art, so it will not be described in detail here.

[0031] First, considering the question of how cold air enters the annular sleeve 2 to cool the polyethylene filament bundle, the following is presented: Figure 3 and Figure 4 An air inlet 22 is provided on the left side of the outer surface of the annular sleeve 2. An installation block 4 is installed on the left side of the air inlet 22. An air duct 41 is provided at the bottom of the installation block 4. A ventilation pipe 42 is installed at the bottom of the air duct 41. An insertion interface is provided at the top of the installation block 4. A baffle plate 43 is installed inside the insertion interface. An adjustment component 44 is provided on the left side of the baffle plate 43 for adjusting the position of the baffle plate 43 inside the installation block 4.

[0032] The adjusting assembly 44 includes a connecting block 401 fixedly installed on the top left side of the baffle plate 43. The top of the connecting block 401 has a threaded hole, and a threaded rod 402 is threadedly connected inside the threaded hole. The bottom of the threaded rod 402 is rotatably mounted on the top of the mounting block 4, and the top of the threaded rod 402 extends through to the outside of the connecting block 401 where a rotating block 403 is installed. A filter screen 5 is installed on the inner wall of the mounting block 4. The baffle plate 43 is located to the left of the filter screen 5. Two mounting blocks 4 and two air inlets 22 are provided, symmetrically distributed on the outer surface of the annular sleeve 2.

[0033] Furthermore, an air inlet 22 is located on the left side of the outer surface of the annular sleeve 2. A mounting block 4 is fixedly installed on the left side of the air inlet 22. An air duct 41 is opened inside the mounting block 4, allowing the ventilation pipe 42 to deliver cold air into the air duct 41. The cold air is blown into the interior of the annular sleeve 2 from the air inlet 22 to cool the polyethylene filaments. When extruding polyethylene filaments of different thicknesses, the air outlet size remains constant, and the wind force on the polyethylene filaments remains constant. However, the thinner polyethylene filaments are subject to greater swaying from the airflow. Even with the partition plate 3 separating them, the polyethylene filaments may still collide and stick together. Therefore, on the top of the mounting block 4... An insertion interface is provided, into which a baffle plate 43 is inserted. A connecting block 401 is installed on the left side of the baffle plate 43. A threaded rod 402 is threaded into the internal threaded hole of the connecting block 401. Rotating the rotating block 403 at the top of the threaded rod 402 can adjust the height of the baffle plate 43 inside the mounting block 4, thereby adjusting the diameter of the air duct 41 inside the mounting block 4. This prevents the polyethylene filaments from shaking and sticking due to excessive wind force. The freshly extruded polyethylene filaments are sticky and will stick dust to the outer surface. A filter screen 5 is installed inside the air duct 41 of the mounting block 4 to effectively filter the dust in the blown-out cold air.

[0034] It should be noted that the ventilation duct 42 is connected to the air cooler to blow cold air into the annular sleeve 2. The air cooler cools the air through a refrigeration system and then delivers the cold air into the ventilation duct 42 through a fan. The refrigeration system can be an air conditioning cooling system. The internal structure of the air cooler is existing technology, and its working principle is common knowledge to those skilled in the art, so it will not be described in detail here.

[0035] Secondly, considering the issue of how the partition plate 3 can move up and down within the annular sleeve 2, the following is presented: Figure 2 and Figure 5The specific structure of the sliding component 32 is disclosed. The sliding component 32 includes a slide rail 301 fixedly installed on the inner wall of the annular sleeve 2. A slider 302 is slidably installed inside the slide rail 301. A lead screw 303 is threadedly connected inside the slider 302. The top of the lead screw 303 is rotatably installed on the top of the inner wall of the slide rail 301. The bottom of the lead screw 303 penetrates the bottom of the inner wall of the slide rail 301 and extends to the outside of the slide rail 301. A rotating block 304 is installed at the bottom of the lead screw 303.

[0036] The slider 302 is fixedly installed on the outer surface of the partition plate 3. There are two slide rails 301, which are symmetrically distributed on both sides of the partition plate 3.

[0037] Furthermore, by installing a slide rail 301 on the inner wall of the annular sleeve 2, a slider 302 is fixedly installed on the outer surface of the partition plate 3. The slider 302 can slide up and down inside the slide rail 301. Then, the lead screw 303 is threaded into the inside of the slider 302, so that the lead screw 303 can rotate inside the slide rail 301. When adjusting the position of the partition plate 3, rotating the rotating block 304 drives the lead screw 303 to rotate, so that the partition plate 3 moves up and down along the slide rail 301 with the help of the slider 302. Different heights are used to separate polyethylene filaments of different thicknesses, avoiding the polyethylene filaments from sticking together due to being blown and shaken by cold air.

[0038] It should be noted that there are two slide rails 301 inside the annular sleeve 2, which can make the sliders 302 fixedly installed on both sides of the partition plate 3 slide up and down inside the two slide rails 301. One slide rail 301 is equipped with a lead screw 303, and the other slide rail 301 is only equipped with a sliding column. The rotation of the lead screw 303 can drive the partition plate 3 to move up and down inside the annular sleeve 2.

[0039] In summary, the working principle of this utility model is as follows:

[0040] When air-cooling polyethylene filaments, the position of the separator plate 3 within the annular sleeve 2 is adjusted up and down according to the different thicknesses of the polyethylene filaments by rotating the screw 303. The filaments are extruded from the outlet 11 at the bottom of the spinneret 1. The polyethylene filaments pass through the docking holes 31 on the separator plate 3, so that multiple polyethylene filaments are separated within the docking holes 31 in the separator plate 3. The ventilation pipe 42 is connected to a cold air blower to blow air into the air duct 41 in the mounting block 4, so that the cold air is blown into the interior of the annular sleeve 2 through the air inlet 22 to air-cool the polyethylene filaments. The height of the baffle plate 43 within the mounting block 4 is adjusted by rotating the threaded rod 402 to adjust the diameter of the air duct 41, so as to avoid the air duct 41 opening being too large and the cold air blowing out being too strong, causing the polyethylene filaments to shake and stick together. In addition, the filter screen 5 inside the air duct 41 can block dust and prevent the dust blown out by the cold air from sticking to the polyethylene filaments.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A polyethylene filament air-cooled structure, comprising a spinneret (1) for extruding polyethylene filaments, a plurality of filament outlets (11) are arranged on the bottom of the spinneret (1), and an annular sleeve (2) is arranged on the bottom of the spinneret (1), and a butt ring (21) is fixedly arranged on the top of the outer surface of the annular sleeve (2), characterized in that: The inside of the annular sleeve (2) is provided with a partition plate (3), a plurality of docking holes (31) are opened in the top of the partition plate (3), and a sliding assembly (32) is arranged on the outer surface of the partition plate (3), which is used for adjusting the height of the partition plate (3) up and down. The outer surface of the annular sleeve (2) is provided with an air inlet (22) on the left side, the mounting block (4) is mounted on the left side of the air inlet (22), the air duct (41) is opened in the bottom of the mounting block (4), the ventilation pipe (42) is mounted on the bottom of the air duct (41), the plug-in interface is opened in the top of the mounting block (4), the air baffle (43) is mounted in the plug-in interface, and the adjusting assembly (44) is arranged on the left side of the air baffle (43) and used for adjusting the position of the air baffle (43) in the mounting block (4).

2. The polyethylene filament air-cooled structure of claim 1, wherein: The partition plate (3) is arranged directly below the spinneret (1), and the positions of the plurality of silk outlets (11) correspond to the positions of the plurality of docking holes (31) one by one.

3. The polyethylene filament air-cooled structure of claim 1, wherein: The sliding assembly (32) comprises a sliding rail (301) fixedly installed on the inner wall of the annular sleeve (2), a sliding block (302) slidably installed in the sliding rail (301), and a lead screw (303) threadedly connected in the sliding block (302). The top of the lead screw (303) is rotatably installed on the inner wall top of the sliding rail (301), the bottom of the lead screw (303) penetrates through the inner wall bottom of the sliding rail (301) and extends to the outside of the sliding rail (301), and the bottom of the lead screw (303) is provided with a rotating block one (304).

4. The polyethylene filament air-cooled structure of claim 3, wherein: The sliding block (302) is fixedly installed on the outer surface of the partition plate (3), and the sliding rail (301) is provided with two, which are symmetrically distributed on both sides of the partition plate (3).

5. The polyethylene filament air-cooled structure of claim 4, wherein: The adjusting assembly (44) comprises a connecting block (401) fixedly installed on the left top of the air baffle (43), a threaded hole is opened in the top of the connecting block (401), a threaded rod (402) is threadedly connected in the threaded hole, the bottom of the threaded rod (402) is rotatably installed on the top of the mounting block (4), and the top of the threaded rod (402) penetrates to the outside of the connecting block (401) and is provided with a rotating block two (403).

6. The polyethylene filament air-cooled structure of claim 5, wherein: The inner wall of the mounting block (4) is provided with a filter screen (5), the air baffle (43) is arranged on the left side of the filter screen (5), and the mounting block (4) and the air inlet (22) are both provided with two, which are symmetrically distributed on the outer surface of the annular sleeve (2).

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