A duct structure for doffing

Abstract

The application relates to the technical field of chemical fiber production, in particular to a duct structure for yarn falling, which comprises a duct body fixedly penetrating a floor slab and a central pipe coaxially fixedly inserted into the duct body for yarn bundle penetration, the cross section of the duct body is square, and the cross section of the central pipe is circular. The central pipe is added and is a circular pipe, the inner diameter of the duct for yarn bundle penetration is reduced, the yarn bundle deviation range is limited, the yarn bundle swing range caused by airflow change in the duct is reduced, and the possibility of yarn bundle falling out of a yarn containing barrel is reduced.

Description

Technical Field

[0001] This application relates to the field of chemical fiber production technology, and in particular to a channel structure for fiber shedding. Background Technology

[0002] In the production and processing of chemical fibers, chemical fibers are processed and manufactured through spinning equipment. The spinning equipment includes a spinning ring blower, a winding and oiling machine, a traction machine, a feeder, and a reciprocating machine. The spinning ring blower cools the filaments extruded by the spinneret into solid filaments. After the winding and oiling machine applies oil to the filaments, the traction machine integrates multiple filaments into a filament bundle, and then the feeder feeds the filament bundle into the filament holding tank of the reciprocating machine below.

[0003] In existing technology, due to space constraints, the feeder and reciprocating machine's yarn collection bins are located in the upper and lower production workshops, respectively. A passageway connecting the upper and lower production workshops is fixedly installed in the floor slab, and the yarn bundle from the feeder falls into the reciprocating machine's yarn collection bin through this passageway. However, in existing technology, the passageway has a square cross-section. When the yarn bundle falls freely within the passageway after being fed by the feeder, the pressure changes at the feed inlet and outlet are significant (the outlet below the feeder experiences higher air pressure due to the feeder's output). This results in large airflow variations within the passageway, causing the yarn bundle to sway and deviate as it passes through. Furthermore, the large diameter of the square passageway leads to a large range of yarn deviation within the passageway, making it difficult to ensure that the yarn bundle falls accurately into the collection bin. Therefore, further improvements are needed. Utility Model Content

[0004] In order to limit the deviation range of the filament bundle and reduce the possibility of the filament bundle falling out of the filament container, this application provides a channel structure for filament dropping.

[0005] The present application provides a channel structure for wire dropping, which adopts the following technical solution:

[0006] A channel structure for wire dropping includes a channel body fixedly installed through a floor slab and a central tube coaxially fixedly inserted into the channel body for the wire bundle to pass through. The channel body has a square cross-section, and the central tube has a circular cross-section.

[0007] By adopting the above technical solution, a central tube is added, and the central tube is circular, which reduces the inner diameter of the channel through which the filament bundle passes, thereby limiting the offset range of the filament bundle, reducing the amplitude of filament bundle swaying caused by changes in airflow in the channel, and reducing the possibility of the filament bundle falling out of the filament container.

[0008] Preferably, the upper end of the central tube is provided with a guide cylinder located above the tunnel body. The guide cylinder is trumpet-shaped, and the small end of the guide cylinder is coaxially and fixedly connected to the upper end of the central tube.

[0009] By adopting the above technical solution, adding a trumpet-shaped guide cylinder and fixing its small end to the upper end of the central tube, the entry range of the filament bundle when entering the central tube can be effectively expanded, which helps to guide the filament bundle smoothly into the central tube, reduces the risk that the filament bundle cannot enter accurately due to deviation from the entry point, and thus further improves the stability and accuracy of the filament bundle transmission process.

[0010] Preferably, an mounting ring plate is fixedly connected to the outer wall of the upper end face of the tunnel body, and a fixing plate that abuts against the upper end face of the mounting ring plate is fixedly sleeved on the central tube, and a fixing bolt threaded to the mounting ring plate passes through the fixing plate.

[0011] By adopting the above technical solution, the mounting ring plate provides a supporting foundation for the fixing plate. The fixing plate is fastened to the upper surface of the mounting ring plate by fixing bolts, thereby ensuring that the central tube will not loosen or fall off, and improving the stability and reliability of the entire structure.

[0012] Preferably, the upper part of the passageway body is fixedly connected to an anti-detachment plate that abuts against the upper surface of the floor slab.

[0013] By adopting the above technical solution, the addition of anti-detachment plates makes the connection between the tunnel body and the floor slab more stable.

[0014] Preferably, the lower sidewall of the tunnel body is provided with a limiting member that abuts against the lower outer wall of the central tube, and multiple limiting members are provided and distributed around the axis of the tunnel body.

[0015] By adopting the above technical solution and adding multiple limiting components distributed around the axis of the tunnel body, the lower outer wall of the central tube can be effectively limited. This prevents the lower discharge end of the central tube from shifting due to vibration.

[0016] Preferably, the limiting member is a limiting screw threaded through the side wall of the tunnel body.

[0017] Preferably, a limiting plate is fixedly connected to the lower inner wall of the tunnel body, and a limiting hole is coaxially formed on the limiting plate, with the lower part of the central tube inserted into the limiting hole.

[0018] By adopting the above technical solution, a limiting plate is added and a limiting hole is opened on it, so that the lower part of the central tube can be accurately inserted into the limiting hole, which effectively limits the positional deviation of the central tube in the tunnel body and ensures the coaxiality of the central tube and the tunnel body, thereby further reducing the swaying and deviation of the filament bundle during the falling process.

[0019] Preferably, the lower outer wall of the central tube is fixedly connected to a positioning plate that abuts against the upper surface of the limiting plate.

[0020] By adopting the above technical solution, the positioning plate abuts against the upper surface of the limiting plate, effectively preventing the central tube from moving downward, thereby ensuring the relative position stability between the central tube and the tunnel body.

[0021] Preferably, a movable tube is slidably inserted into the upper part of the central tube, and an adjusting member for adjusting the sliding position of the movable tube is provided between the central tube and the movable tube.

[0022] By adopting the above technical solution, the sliding position of the movable tube can be adjusted by adjusting the adjusting component, making the height of the central tube adjustable. In practical applications, the position of the movable tube can be flexibly adjusted according to different height requirements, ensuring that the filament bundle can pass through the channel more accurately and fall into the filament collection bucket, further improving the material transfer stability between the feeder and the reciprocating machine.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. Adding a central tube, which is circular, reduces the inner diameter of the channel through which the filament bundle passes, thereby limiting the offset range of the filament bundle, reducing the amplitude of filament bundle swaying caused by changes in airflow within the channel, and lowering the possibility of the filament bundle falling out of the filament container.

[0025] 2. Adding a trumpet-shaped guide tube and fixing its small end to the upper end of the central tube can effectively expand the entry range of the filament bundle when it enters the central tube, which helps to guide the filament bundle smoothly into the central tube and reduces the risk that the filament bundle cannot enter accurately due to deviation from the entry, thereby further improving the stability and accuracy of the filament bundle transmission process.

[0026] 3. The sliding position of the movable tube can be adjusted by adjusting the adjustment component, so that the height of the central tube can be adjusted flexibly according to different height requirements in actual applications. This ensures that the filaments can pass through the channel more accurately and fall into the filament collection bucket, further improving the material transfer stability between the feeder and the reciprocating machine. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a channel structure for wire dropping in Example 1;

[0028] Figure 2 This is a schematic diagram of the connection structure between the tunnel body and the central tube in Example 1;

[0029] Figure 3 This is a schematic diagram of the connection structure between the tunnel body and the central tube in Example 2;

[0030] Figure 4 This is a schematic diagram of the connection structure between the active tube and the central tube in Example 3;

[0031] Figure 5 This is a schematic diagram of the material guide cylinder in Example 3.

[0032] In the diagram, 10 is the floor slab; 20 is the feeder; 201 is the protective door cover; 1 is the tunnel body; 11 is the mounting ring plate; 12 is the limit screw; 13 is the anti-detachment plate; 14 is the limit plate; 2 is the central tube; 21 is the fixing plate; 22 is the fixing bolt; 23 is the positioning plate; 24 is the movable tube; 25 is the cylinder; 3 is the guide cylinder; and 31 is the magnetic ring. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] Example 1:

[0035] This application discloses a channel structure for wire dropping, referring to... Figure 1 It includes a tunnel body 1 fixedly installed through the floor slab 10 and a central tube 2 coaxially fixedly inserted into the tunnel body 1 for the wire bundle to pass through. The tunnel body 1 has a square cross-section and the central tube 2 has a circular cross-section.

[0036] Reference Figure 1 , Figure 2 The upper part of the tunnel body 1 is fixedly fitted with an anti-detachment plate 13 that abuts against the upper surface of the floor slab 10. The anti-detachment plate 13 is fixed to the floor slab 10 by bolts. The upper end face of the tunnel body 1 is fixedly fitted with an installation ring plate 11. The upper end face of the installation ring plate 11 is flush with the upper end face of the tunnel body 1. The upper part of the central tube 2 is fixedly fitted with a fixing plate 21 that abuts against the upper end face of the installation ring plate 11. The fixing plate 21 is threaded with fixing bolts 22 that are connected to the installation ring plate 11.

[0037] The lower sidewall of the tunnel body 1 is provided with a limiting member that abuts against the lower outer wall of the central tube 2. Multiple limiting members are provided and distributed around the axis of the tunnel body 1. In this embodiment, the limiting member is a limiting screw 12 threaded through the sidewall of the tunnel body 1.

[0038] The upper end of the central tube 2 protrudes from the upper surface of the fixed plate 21. A guide cylinder 3 is coaxially and fixedly connected to the upper end of the central tube 2. The guide cylinder 3 is trumpet-shaped, and its small end is coaxially and fixedly connected to the upper end of the central tube 2. The guide cylinder 3 is located directly below the material discharge port of the protective door cover 201 of the feeder 20.

[0039] The implementation principle of a channel structure for wire dropping in this application embodiment is as follows: a central tube 2 is added, and the central tube 2 is a circular tube, which reduces the inner diameter of the space through which the wire bundle passes, thereby limiting the offset range of the wire bundle, reducing the amplitude of wire bundle swaying caused by changes in airflow in the channel, and reducing the possibility of the wire bundle falling out of the wire collection bucket.

[0040] Example 2:

[0041] The difference from Example 1 is that, referring to Figure 3 A limiting plate 14 is fixedly connected to the lower inner wall of the tunnel body 1. The limiting plate 14 is coaxially provided with a limiting hole. The lower part of the central tube 2 is inserted into the limiting hole. The lower outer wall of the central tube 2 is coaxially fixedly fitted with a positioning plate 23 that abuts against the upper end face of the limiting plate 14.

[0042] Example 3:

[0043] The difference from Example 1 is that, referring to Figure 4 A movable tube 24 is slidably inserted into the upper part of the central tube 2, and a guide cylinder 3 is fixedly connected to the upper end of the movable tube 24. An adjusting component for adjusting the sliding position of the movable tube 24 is provided between the central tube 2 and the movable tube 24. In this embodiment, the adjusting component is a cylinder 25. The cylinder body of the cylinder 25 is fixedly connected to the upper end face of the fixed plate 21, and the piston rod of the cylinder 25 is fixedly connected to the upper outer wall of the movable tube 24. The position of the movable tube 24 is adjusted by extending and retracting the piston rod of the cylinder 25.

[0044] Example 4:

[0045] The difference from Example 3 is that, referring to Figure 5 A magnetic suction ring 31 is coaxially fixedly sleeved on the upper end face of the guide cylinder 3. The magnetic suction ring 31 is used to adhere to the bottom wall of the protective door cover 201 of the feeder 20, thereby fixing the guide cylinder 3. The guide cylinder 3 is covered by the material discharge port of the bottom wall of the protective door cover 201.

[0046] 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. A channel structure for wire feeding, characterized in that: It includes a tunnel body (1) fixedly installed through the floor slab (10) and a central tube (2) coaxially fixedly inserted into the tunnel body (1) for the wire bundle to pass through. The tunnel body (1) has a square cross-section and the central tube (2) has a circular cross-section. The upper end of the central tube (2) is provided with a guide cylinder (3) located above the tunnel body (1). The guide cylinder (3) is trumpet-shaped, and the small end of the guide cylinder (3) is coaxially fixedly connected to the upper end of the central tube (2).

2. The channel structure for wire dropping according to claim 1, characterized in that: The upper end face of the tunnel body (1) is fixedly connected to the outer wall of the mounting ring plate (11), and the central tube (2) is fixedly fitted with a fixing plate (21) that abuts against the upper end face of the mounting ring plate (11). The fixing plate (21) is threaded with a fixing bolt (22) that is connected to the mounting ring plate (11).

3. The channel structure for wire dropping according to claim 1, characterized in that: The upper part of the passageway body (1) is fixedly connected to an anti-detachment plate (13) that abuts against the upper surface of the floor slab (10).

4. The channel structure for wire dropping according to claim 1, characterized in that: The lower side wall of the tunnel body (1) is provided with a limiting member that abuts against the lower outer wall of the central tube (2). Multiple limiting members are provided and distributed around the axis of the tunnel body (1).

5. A channel structure for wire dropping according to claim 4, characterized in that: The limiting component is a limiting screw (12) threaded through the side wall of the tunnel body (1).

6. The channel structure for wire dropping according to claim 1, characterized in that: The lower inner wall of the tunnel body (1) is fixedly connected to a limiting plate (14), and the limiting plate (14) is coaxially provided with a limiting hole, and the lower part of the central tube (2) is inserted into the limiting hole.

7. A channel structure for wire dropping according to claim 6, characterized in that: The lower outer wall of the central tube (2) is fixedly connected to a positioning plate (23) that abuts against the upper end face of the limiting plate (14).

8. A channel structure for wire dropping according to claim 1, characterized in that: The upper part of the central tube (2) is slidably inserted with a movable tube (24), and an adjusting member is provided between the central tube (2) and the movable tube (24) to adjust the sliding position of the movable tube (24).

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