An oil mist baffle

Abstract

The application discloses an oil mist baffle, relates to the technical field of polyamide yarn production, and comprises a bottom plate arranged on the side wall of a polymerization device box, a first side plate and a second side plate arranged on the two sides of the bottom plate, and a cover plate rotatably arranged on the first side plate, further comprising a first limiting piece for limiting rotation of the cover plate, and two first baffles obliquely arranged in a protection space, two ends of the two first baffles being connected with the first side plate and the second side plate respectively, and the application can reduce the possibility of yarn contamination by oil mist.

Description

Technical Field

[0001] This application relates to the technical field of nylon filament production, and in particular to an oil mist baffle. Background Technology

[0002] Nylon filament is a synthetic fiber made of polyamide. The production process of nylon filament mainly includes polymerization, spinning, stretching, and post-treatment steps.

[0003] The polymerization process for producing nylon filament mainly includes the following steps: First, the raw material is heated above its melting point and extruded into a high-viscosity melt using a screw extruder; then, the melt is transported to the spinneret through a spinning metering pump and a filter screen, and the spinneret extrudes the melt into a fine stream through the spinneret orifice; finally, the fine stream is cooled and solidified into nascent filaments using cooling air.

[0004] The nascent filaments produced in the polymerization equipment typically undergo further processing steps such as oiling, cold drawing, and heat setting to ultimately form nylon filaments, which are then wound onto spinning tubes for winding. Because the nascent filaments may not be drawn evenly during polymerization, or due to uneven oiling, filament breakage may occur. Therefore, a single filament breakage detection device is installed. This device is electrically connected to all nylon filament production equipment. When the device detects a breakage, it sends a signal to pause production, allowing operators to inspect all filaments, locate the broken filament, and reconnect the broken section.

[0005] During the nylon polymerization process, the melt is sheared by the high-speed airflow at the spinneret, forming a fine oil mist that diffuses into the ambient air. From the moment the filament is fed out of the polymerization equipment to its winding in the spinning tube, it is exposed to the air. The oil mist overflowing from the polymerization equipment mainly consists of polyamide molecules from the nylon melt. When this oil mist adheres to the filament, it contaminates it, thus affecting its quality. Summary of the Invention

[0006] To reduce the possibility of oil mist contamination of the yarn, this application provides an oil mist baffle.

[0007] This application provides an oil mist baffle, which adopts the following technical solution:

[0008] An oil mist baffle includes a base plate disposed on the side wall of a polymerization equipment box, a first side plate and a second side plate respectively disposed on both sides of the base plate, and a cover plate rotatably disposed on the first side plate. The cover plate can be rotated to abut against the end face of the second side plate. The base plate, the first side plate, the second side plate and the cover plate can enclose a protective space for the filaments to pass through.

[0009] It also includes a first limiting member for restricting the rotation of the cover plate, and two first baffles inclinedly disposed within the protective space. The two ends of the two first baffles are respectively connected to the first side plate and the second side plate. When the cover plate rotates to abut against the end face of the second side plate, the ends of the two first baffles that are far apart from each other abut against the cover plate and the bottom plate respectively. The two first baffles are symmetrically disposed and form flared openings. The flared openings of the two first baffles face the direction in which the wires pass through, and the wires can pass through the gap formed between the two first baffles.

[0010] By adopting the above technical solution, the filament passes through the protective space enclosed by the base plate, the first side plate, the second side plate and the cover plate, which can reduce the contamination of the filament by external oil mist;

[0011] When the filaments pass through the protective space, they are constantly moving, and multiple filaments pass through the protective space simultaneously. As a result, outside air may be drawn into the protective space by the movement of the filaments, creating an airflow. By setting two first baffles at the filament inlet, and by setting the two first baffles at an angle with their openings facing the direction from which the filaments exit (i.e., the two first baffles are angled towards the direction from which the filaments enter), the airflow formed around the filaments when they enter can be blocked by the first baffles, thereby reducing the possibility of external oil mist entering the protective space and reducing the possibility of the filaments being contaminated.

[0012] Optionally, it also includes two second baffles disposed within the protective space. The two ends of the two second baffles are respectively connected to the first side plate and the second side plate. The wire can pass through the gap between the two second baffles. Both the first side plate and the second side plate are provided with air inlet pipes. The openings of the two air inlet pipes are facing the gap between the two first baffles. The ends of the two air inlet pipes away from the first side plate and the second side plate are connected to a blower.

[0013] By adopting the above technical solution, the second baffle and the first baffle work together to seal the protective space to a certain extent. The air inlet pipe and the blower can blow air into the protective space. The air inlet pipe is oriented towards the gap between the two first baffles, which allows the air inlet pipe to blow along the side wall of the first baffle to the outside of the first baffle, thereby further dispersing the airflow brought by the filament movement and further limiting the possibility of external oil mist entering the protective space.

[0014] Furthermore, after the filaments are formed, cooled, and sent out from the polymerization equipment box, they are first lubricated by the equipment. The filaments are cooled better under the blowing force of the blower, and the lubricating oil on the side wall of the filaments can be further integrated with the filaments, resulting in better lubrication.

[0015] Optionally, the positions of the two first baffles at their respective ends are higher than the positions at their respective ends. Each of the two first baffles at their respective ends is rotatably connected to a third baffle. When the air inlet pipe blows air into the protective space, the two third baffles can be tilted upwards under the action of the air force, allowing the filament to pass through the gap between the two third baffles. The single filament breakage detection device can control the blower to stop working. When the blower stops working, the two third baffles can rotate downwards, and the ends of the two third baffles at their respective ends can rotate to abut against each other.

[0016] By adopting the above technical solution, when the blower is working, the wire can pass between the two third baffles for normal wire processing. Simultaneously, the third baffles act as airflow blockers. During processing, if the single-wire breakage detection device detects a wire breakage, it can control all equipment to stop working and also stop the blower. At this time, the third baffles lose their airflow function, and under their own weight, both third baffles rotate downwards. When the two third baffles rotate to abut against each other, they clamp the wire that passed between them. During processing, the wire is generally in a relatively taut state. When the wire breaks, it will rebound to the sides, with the lower wire falling to the ground, while the upper wire may bounce back onto the equipment above, making it difficult for operators to remove. Therefore, clamping the wire with two third baffles facilitates wire splicing and repair when the wire breaks.

[0017] Optionally, each of the two third baffles is provided with an elastic ring at one end that is close to the other, and the elastic ring extends along the length of the third baffle.

[0018] By adopting the above technical solution, when a filament breaks, the blower stops blowing air, and the two third baffles rotate and approach each other, the elastic rings located on the end face of the third baffles can abut against each other. Since the elastic rings are hollow inside, the two elastic rings will deform to a certain extent when they abut against each other, thereby making the clamping effect on the filaments better.

[0019] Optionally, the first limiting member includes a limiting post rotatably disposed on the second side plate and a limiting block disposed on the limiting post, and the cover plate is provided with a positioning hole for the limiting post and the limiting block to pass through.

[0020] By adopting the above technical solution, when it is necessary to close the protective space, the cover plate is rotated towards the second side plate. When the cover plate abuts against the end face of the second side plate, the limiting post and the limiting block pass through the positioning hole. Then, the limiting post is rotated to drive the limiting block to be misaligned with the positioning hole, which can restrict the rotation of the cover plate and close the protective space.

[0021] Optionally, a groove is provided on the second side plate, and the limiting post is slidably disposed in the groove. The first limiting member also includes a spring disposed between the limiting post and the bottom wall of the groove. When the limiting block passes through the positioning hole and rotates to abut against the side wall of the cover plate, the spring is in a stretched state.

[0022] By adopting the above technical solution, when the cover plate abuts against the end face of the second side plate, the limiting post and the limiting block pass through the positioning block. Then, rotating the limiting post causes the limiting block to shift away from the positioning hole. At this time, the spring is in a stretched state and has the elastic force to drive the limiting post to slide towards the bottom wall of the groove, thus driving the limiting block to press against the side wall of the cover plate, thereby increasing the stability of the cover plate's rotation.

[0023] Optionally, a positioning groove is provided on the side wall of the cover plate opposite to the second side plate for the limiting block to abut against. The positioning groove is in communication with the positioning hole. When the limiting block passes through the positioning hole and rotates to abut against the positioning groove, the spring is in a stretched state.

[0024] By adopting the above technical solution, the limiting post is rotated, and the limiting block abuts against the positioning groove under the elastic force of the spring, thereby restricting the rotation of the limiting block and enhancing the stability of the limiting block in restricting the cover plate.

[0025] Optionally, the limiting block and the positioning block are provided with a gripping block on the end face opposite to the second side plate, which facilitates gripping and rotating the limiting post.

[0026] By adopting the above technical solution, the gripping block can easily control the rotation of the limiting column.

[0027] Optionally, the cover plate is provided with a sealing strip, and the first side plate and the second side plate are provided with sealing grooves for the sealing strip to engage, and the sealing strip and the sealing groove are provided in a one-to-one correspondence.

[0028] By adopting the above technical solution, when the cover plate is closed with the end of the second side plate, the sealing strip is engaged in the sealing groove, reducing the possibility of gas escaping from the connection between the second side plate and the cover plate, thereby increasing the wind force of the air inlet pipe blowing towards the third baffle.

[0029] In summary, this application includes at least one of the following beneficial effects:

[0030] 1. By setting a base plate, a first side plate, a second side plate, a cover plate, a first baffle, and a second baffle, a relatively enclosed space can be formed, reducing the contamination of the yarn by external oil mist;

[0031] 2. The first baffle can prevent the airflow carried by the filament during movement from entering the protective space, thereby further reducing the oil mist inside the protective space. Attached Figure Description

[0032] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the structure when the cover is open;

[0034] Figure 3 yes Figure 1 A cross-sectional schematic diagram of the second side plate from the perspective of the AA line in the middle;

[0035] Figure 4 This is a structural schematic diagram of the first limiting component.

[0036] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. First side plate; 3. Second side plate; 31. Slide groove; 32. Sealing groove; 4. Cover plate; 41. Positioning hole; 42. Drop groove; 43. Sealing strip; 5. Protective space; 6. First limiting component; 61. Limiting post; 611. Grip block; 62. Limiting block; 63. Spring; 7. First baffle; 71. Third baffle; 72. Elastic ring; 8. Second baffle; 9. Air inlet pipe; 91. Blower. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0038] This application discloses an oil mist baffle. (Refer to...) Figure 1 and Figure 2 The oil mist baffle includes a base plate 1 disposed on the outer side wall of the polymerization equipment box, a first side plate 2 and a second side plate 3 welded to the left and right sides of the base plate 1 respectively, and a cover plate 4 hinged to the first side plate 2. The cover plate 4 can rotate to abut against the second side plate 3. The base plate 1, the first side plate 2, the cover plate 4 and the second side plate 3 are all thin metal plates and can be connected to each other to enclose a protective space 5 for the filaments to pass through from top to bottom.

[0039] For ease of description, refer to Figure 1 The orientation is determined by taking the location of the first side panel 2 as the left and the location of the second side panel 3 as the right.

[0040] Since there are many filaments when they are sent out of the polymerization box, the filaments are straightened when they are conveyed to the spinning tube for winding. That is, when the filaments pass through the outside of the polymerization equipment box, they are radiating in a wide-at-the-top and narrow-at-the-bottom shape. Correspondingly, the cover plate 4 and the bottom plate 1 are also wide at the top and narrow at the bottom to minimize the area within the protective space 5.

[0041] Reference Figure 1 and Figure 2In this embodiment, the cover plate 4 and the first side plate 2 are hinged together by a hinge. In order to avoid interference between the cover plate 4 and the first side plate 2 when the cover plate 4 rotates, an extension plate is welded on the left side wall of the first side plate 2, and an extension plate is also welded on the left side wall of the cover plate 4. The hinge is fixed to the cover plate 4 and the first side plate 2 by bolts, thereby realizing the rotational connection between the cover plate 4 and the first side plate 2.

[0042] Reference Figure 2 and Figure 3 The oil mist baffle also includes two first baffles 7 inclined upwards within the protective space 5. The left and right ends of the two first baffles 7 extend horizontally, and their end faces are welded to the first side plate 2 and the second side plate 3, respectively. When the cover plate 4 is placed on the second side plate 3, the opposite ends of the two first baffles 7 can abut against the cover plate 4 and the bottom plate 1, respectively. The two first baffles 7 are symmetrically arranged in a flared shape at the upper end of the protective space 5, with the flared openings facing downwards. The upper portions of the two first baffles 7 are close to each other, and there is a certain distance between them, allowing the wire to pass through the gap between the two first baffles 7.

[0043] When the filament passes through the protective space 5 enclosed by the base plate 1, the first side plate 2, the second side plate 3 and the cover plate 4, the contamination of the filament by external oil mist can be reduced. At the same time, the two inclined first baffles 7 can block the airflow around the filament from entering the protective space 5, thereby reducing the possibility of external oil mist entering the protective space 5 and thus reducing the possibility of the filament being contaminated by oil mist.

[0044] Reference Figure 2 In this embodiment, the oil mist baffle also includes two second baffles 8 disposed within the protective space 5. The two second baffles 8 are located at the lower end of the protective space 5 and extend horizontally. The left and right sidewalls of the two baffles are welded to the first side plate 2 and the second side plate 3, respectively. There is a certain distance between the two second baffles 8, allowing the wire to pass through the gap between the two second baffles 8.

[0045] Reference Figure 1 and Figure 2Air inlet pipes 9 are fixedly connected to both the first side plate 2 and the second side plate 3. One end of each air inlet pipe 9 is located within the protective space 5, and the other end of each air inlet pipe 9 is connected to a blower 91. A single filament breakage detection device for detecting whether the filament has broken is electrically connected to the blower 91. When a filament breaks, the single filament breakage detection device can simultaneously control the blower 91 to stop working. The inlets of the air inlet pipes 9 pass through the first side plate 2 and the second side plate 3 respectively, and are directed towards the gap between the two first baffles 7. When the blower 91 is started, the air inlet pipes 9 can blow air into the gap between the two baffles, thereby restricting the airflow brought by the filament when passing through the protective space 5 from entering the protective space 5; at the same time, the airflow blown out by the air inlet pipes 9 can better cool the filament.

[0046] Reference Figure 2 and Figure 3 Two first baffles 7 are respectively hinged to one end of each other. The third baffles 71 extend along the length of the first baffles 7 and can rotate circumferentially relative to the first baffles 7 along the axis of rotation between them.

[0047] In this embodiment, with Figure 3 Using the orientation in the middle as a reference, before processing the filament, first rotate the third baffle 71 upward so that the third baffle 71 abuts against the upper surface of the first baffle 7, so that the filament can pass through the gap between the two first baffles 7; then turn on the blower 91 and rotate the first baffle 7 in the direction. Under the wind force of the blower 91, the first baffle 7 can be located in a plane parallel to the first baffle 7, so that the filament can pass through the gap between the two third baffles 71; when the single filament breakage detection device detects that the filament has broken and controls the blower 91 to stop working, the air inlet pipe 9 stops blowing air, and the two third baffles 71 rotate downward under the action of gravity, and the ends of the two third baffles 71 can abut against each other, so that the filament is clamped between the two third baffles 71, thereby restricting the upward rebound of the filament, so as to facilitate the operator to splice the filament later.

[0048] Reference Figure 3 In this embodiment, elastic rings 72 are fixed to the ends of the two third baffles 71 that are close to each other. The elastic rings 72 have a circular cross-section and can extend along the length of the third baffles 71. The elastic rings 72 can be made of elastic materials such as rubber. When the two third baffles 71 approach each other under the action of gravity and generate mutual force, the elastic rings 72 will deform slightly, and the filament will be clamped between the two elastic rings 72, thereby improving the clamping effect on the filament and making it less likely to damage the filament.

[0049] Reference Figure 1 and Figure 4Optionally, the first limiting member 6 includes a limiting post 61 rotatably mounted on the second side plate 3, and a limiting block 62 welded to the side wall of the limiting post 61. The limiting post 61 has a circular cross-section, and its axis is perpendicular to the end face of the second side plate 3. Two limiting blocks 62 are symmetrically arranged on the side wall of the limiting post 61. The cover plate 4 has positioning holes 41 for the limiting post 61 and the limiting block 62 to pass through. When the cover plate 4 is rotated to cover the second side plate 3, the limiting post 61 and the limiting block 62 can pass through the positioning holes 41. Then, the limiting post 61 is rotated so that the limiting block 62 is offset from the positioning hole 41, and the side wall of the limiting block 62 abuts against the side wall of the cover plate 4, thereby restricting the rotation of the cover plate 4.

[0050] Reference Figure 4 Furthermore, the second side plate 3 is provided with a groove 31 for the sliding of the limiting post 61. The first limiting member 6 also includes a spring 63 disposed between the groove 31 and the limiting post 61. One end of the spring 63 is fixedly connected to the inner bottom wall of the groove 31, and the other end of the spring 63 is fixed to the end face of the limiting post 61. When the cover plate 4 is closed on the second side plate 3, and the limiting block 62 abuts against the side wall of the cover plate 4 away from the groove 31, the spring 63 is in a stretched state, thereby driving the limiting block 62 to press against the cover plate 4, so as to increase the stability of the limiting of the cover plate 4.

[0051] In this embodiment, a positioning groove 42 is provided on the side wall of the cover plate 4 away from the second back plate for the limiting block 62 to abut. The positioning groove 42 is connected to the positioning hole 41. After the limiting block 62 passes through the positioning hole 41, the limiting block 62 is rotated 90° and released. Under the elastic force of the spring 63, the limiting block 62 can fall into the positioning groove 42. At this time, the spring 63 is in a stretched state, and the limiting block can abut against the bottom wall of the positioning groove 42, which can lift the table and rotate the limiting block 62, thereby further improving the stability of the limiting of the cover plate 4.

[0052] In this embodiment, to facilitate control of the limiting post 61, a gripping block 611 is welded to the side wall opposite to the sliding groove 31 of the limiting block 62. Preferably, the gripping block 611 has a rhomboid cross-section, and anti-slip fasteners for increasing friction can be provided on the side wall of the gripping block 611. A groove for accommodating the limiting block 62 can be provided on the end face of the second side plate 3. In its natural state, the limiting post 61 is located in the sliding groove 31, and the limiting block 62 is located in the groove on the second side plate 3. When the cover plate 4 is rotated, the gripping block 611 can pass through the positioning hole 41. When the cover plate 4 abuts against the side wall of the second side plate 3, the gripping block 611 has a portion extending out of the positioning hole 41. The gripping block 611 can drive the limiting post 61 to pass through the positioning hole 41 and rotate the limiting post 61, so that the limiting block 62 falls into the positioning groove 42.

[0053] Reference Figure 1 and Figure 2 In this embodiment, a handle can be welded to the right side wall of the cover plate 4 to facilitate rotation. A sealing strip 43 is fixed on the side wall of the cover plate 4 facing the second side plate 3. There are two sealing strips 43, and the cross-section of the sealing strip 43 is semi-circular. Both the first side plate 2 and the second side plate 3 are provided with sealing grooves 32 for the sealing strips 43 to engage. When the cover plate 4 is rotated to abut against the second side plate 3, the sealing strips 43 can be engaged in the sealing grooves 32, thereby reducing the possibility of air blown from the air inlet pipe 9 flowing out through the gap between the cover plate 4 and the first side plate 2 and the second side plate 3.

[0054] The implementation principle of an oil mist baffle in this application embodiment is as follows: First, rotate the two third baffles 71 upwards so that they respectively abut against the upper surfaces of the two first baffles 7. Then, pass the wire through the two first baffles 7 and out through the two second baffles 8. Then, start the blower 91 and rotate the two third baffles 71 so that the third baffles 71 are respectively at the same level as the first baffles 7, so that the wire can be processed.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oil mist baffle, characterized by: The device comprises a bottom plate (1) arranged on the side wall of the polymerization device box, a first side plate (2) and a second side plate (3) arranged on both sides of the bottom plate (1) respectively, and a cover plate (4) rotatably arranged on the first side plate (2), which can be rotated to abut against the end face of the second side plate (3), and the bottom plate (1), the first side plate (2), the second side plate (3) and the cover plate (4) can enclose a protective space (5) for the passage of the yarn; The device further comprises a first limiting member (6) for limiting the rotation of the cover plate (4), and two first baffles (7) arranged obliquely in the protective space (5), the two ends of the two first baffles (7) are connected with the first side plate (2) and the second side plate (3) respectively, when the cover plate (4) is rotated to abut against the end face of the second side plate (3), the ends of the two first baffles (7) away from each other abut against the cover plate (4) and the bottom plate (1) respectively, the two first baffles (7) are symmetrically arranged and form flared openings, the flared openings of the two first baffles (7) face the direction in which the yarn passes out, and the yarn can pass through the gap between the two first baffles (7); The device further comprises two second baffles (8) arranged in the protective space (5), the two ends of the two second baffles (8) are connected with the first side plate (2) and the second side plate (3) respectively, and the yarn can pass out from the gap between the two second baffles (8), the first side plate (2) and the second side plate (3) are each provided with an air inlet pipe (9), the pipe openings of the two air inlet pipes (9) face the gap between the two first baffles (7), and the ends of the two air inlet pipes (9) away from the first side plate (2) and the second side plate (3) are each connected with a blower (91); The positions of the two first baffles (7) closer to each other are higher than the positions of the two first baffles (7) away from each other, and the ends of the two first baffles (7) closer to each other are each rotatably connected with a third baffle (71), when the air inlet pipe (9) blows air into the protective space (5), the two third baffles (71) can be in an inclined upward state under the action of wind, the yarn can pass through the gap between the two third baffles (71), and a single yarn breakage detection device can control the blower (91) to stop working, when the blower (91) stops working, the two third baffles (71) can be rotated downward, and the ends of the two third baffles (71) closer to each other can be rotated to abut against each other.

2. An oil mist baffle according to claim 1, characterised in that: The ends of the two third baffles (71) closer to each other are each provided with an elastic ring (72) extending along the length direction of the third baffle (71).

3. An oil mist barrier according to any one of claims 1 or 2, characterized in that: The first limiting member (6) comprises a limiting column (61) rotatably arranged on the second side plate (3), and a limiting block (62) arranged on the limiting column (61), and the cover plate (4) is provided with a positioning hole (41) for the limiting column (61) and the limiting block (62) to pass through.

4. An oil mist baffle according to claim 3, wherein: The second side plate (3) is provided with a sliding groove (31), and the limiting column (61) is slidingly arranged in the sliding groove (31); the first limiting part (6) further comprises a spring (63) arranged between the limiting column (61) and the inner bottom wall of the sliding groove (31); when the limiting block (62) passes through the positioning hole (41) and abuts against the side wall of the cover plate (4), the spring (63) is in a stretched state.

5. An oil mist baffle according to claim 4, characterised in that: The side wall, away from the second side plate (3), of the cover plate (4) is provided with a falling position groove (42) for abutting against the limiting block (62), and the falling position groove (42) is in communication with the positioning hole (41); when the limiting block (62) passes through the positioning hole (41) and abuts against the falling position groove (42), the spring (63) is in a stretched state.

6. An oil mist baffle according to claim 5, characterised in that: The limiting block (62) and the limiting column (61) are provided with a holding block (611) at the end face, away from the second side plate (3), of the limiting block (62) and the limiting column (61), so as to facilitate holding and rotating the limiting column (61).

7. An oil mist baffle according to claim 6, characterised in that: The cover plate (4) is provided with a sealing strip (43), the first side plate (2) and the second side plate (3) are provided with a sealing groove (32) for clamping the sealing strip (43), and the sealing strip (43) and the sealing groove (32) are arranged one by one.

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