Steel wire surface residual liquid one-way airflow back flushing device convenient to replace

Abstract

The utility model discloses a steel wire surface residual liquid one-way air flow back-blowing device convenient to replace, which comprises a back-blowing pipe and a nut, the back-blowing pipe is formed by combining two semicircular pipes, a steel wire penetrates through a central hole of the back-blowing pipe, a steel wire inlet end of the back-blowing pipe is provided with a prism boss, a steel wire outlet end of the back-blowing pipe is provided with an external thread matched with an internal thread of the nut, and the nut is provided with an external thread matched with an internal thread of the nut. The steel wire outlet end of the blowback pipe sequentially penetrates through the through holes in the two side walls of the air bellow and then is screwed into a nut, the nut and the prism boss both abut against the outer wall of the air bellow, and an air inlet hole communicated with a center hole of the blowback pipe is formed in the middle of the blowback pipe. According to the utility model, the split type blowback pipe is adopted, and can be disassembled into two semicircular pipes in the disassembly and assembly process, so that online disassembly and assembly without shutdown can be realized, the completeness of a steel wire can be ensured, the production continuity is not damaged, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to a one-way airflow backflushing device for residual liquid on the surface of steel wire used in the hot-dip galvanizing process, belonging to the field of metal coating technology. Background Technology

[0002] The hot-dip galvanizing process for steel wire includes alkaline washing, pickling, and fluxing. After each process, any residual liquid on the steel wire must be removed as much as possible to prevent it from being carried into the next process. Because acids and alkalis are highly corrosive, residual liquid on the steel wire surface is generally removed by airflow. Specifically, the steel wire with residual liquid passes through the central hole of an air-blowing pipe. The middle section of the air-blowing pipe is located in a wind box and has an air inlet. High-pressure gas from the wind box enters the air-blowing pipe through the air inlet and then exits from both ends of the pipe. The airflow travels at high speed in the gap between the steel wire and the inner wall of the air-blowing pipe, thus removing the residual liquid from the steel wire surface. This method of removing residual liquid from the steel wire surface has the following shortcomings:

[0003] 1. When the air blowing pipe is blocked or damaged and needs to be cleaned or replaced, the machine must be stopped and the steel wire disconnected before it can be removed and then cleaned or replaced. This not only affects product quality but also disrupts the continuity of production and reduces production efficiency.

[0004] Second, the airflow is blown out from both ends of the blowing pipe at the same time, resulting in a relatively dispersed airflow and a low flow rate, which affects the cleaning effect of residual liquid.

[0005] Therefore, it is essential to improve the existing device for blowing away residual liquid on the surface of steel wire. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a one-way airflow backflushing device for residual liquid on the surface of steel wire that is easy to replace, thereby improving the production efficiency and product quality of hot-dip galvanized steel wire.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A one-way airflow backflushing device for residual liquid on the surface of a steel wire that is easy to replace includes a backflushing pipe and a nut. The backflushing pipe is formed by two semi-circular tubes joined together. The steel wire passes through the central hole of the backflushing pipe. The steel wire inlet end of the backflushing pipe is provided with a prism boss, and the steel wire outlet end is provided with an external thread that matches the internal thread of the nut. The steel wire outlet end of the backflushing pipe passes through the through holes on the two side walls of the air box in sequence and is screwed into the nut. Both the nut and the prism boss rest against the outer wall of the air box. An air inlet hole communicating with the central hole of the backflushing pipe is provided in the middle of the backflushing pipe.

[0009] The aforementioned easy-to-replace unidirectional airflow backflushing device for residual liquid on the surface of the steel wire has multiple annular airflow disturbance grooves arranged along the axial direction of the backflushing tube on the inner wall of the central hole near the wire outlet.

[0010] The aforementioned easy-to-replace unidirectional airflow backflushing device for residual liquid on the surface of steel wire has a longitudinal section of a fishtail-shaped airflow disturbance groove.

[0011] The aforementioned easy-to-replace one-way airflow backflushing device for residual liquid on the surface of the steel wire is equipped with sealing gaskets between the prism boss and the outer wall of the air box, and between the nut and the outer wall of the air box.

[0012] The aforementioned easy-to-replace unidirectional airflow backflushing device for residual liquid on the surface of steel wire has an annular nitrile rubber gasket as its sealing gasket.

[0013] The aforementioned easy-to-replace unidirectional airflow backflushing device for residual liquid on the surface of the steel wire has a clearance fit between the backflushing pipe and the through holes on the two side walls of the air box.

[0014] This invention adopts a split-type backflush pipe, which can be disassembled into two semi-circular pipes during the assembly and disassembly process, enabling online assembly and disassembly without stopping the machine. This not only ensures the integrity of the steel wire but also does not disrupt the continuity of production, thereby improving product quality and production efficiency.

[0015] The airflow disturbance groove inside the backflush tube can prevent the airflow from flowing out in the forward direction, so that the airflow mainly flows out from the wire inlet, thereby ensuring the pressure of the backflush airflow and improving the backflush effect of the backflush device. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the backflush pipe, in which... Figure 2 (a) is the front view. Figure 2 (b) is the left view. Figure 2 (c) is a top view;

[0019] Figure 3 This is a schematic diagram of the structure of a semi-circular tube, in which... Figure 3 (a) is the front view. Figure 3 (b) is the left view. Figure 3 (c) is a top view;

[0020] Figure 4 This is an installation diagram of the present invention;

[0021] Figure 5 for Figure 4 AA section view in the image.

[0022] The labels in the diagram are as follows: 1. Nut, 2. Air inlet, 3. Semicircular tube, 4. Airflow disturbance groove, 5. External thread, 6. Prism boss, 7. Air box, 8. Air inlet, 9. Thread inlet, 10. Thread outlet, 11. Sealing gasket, 12. Center hole, 13. Steel wire. Detailed Implementation

[0023] This invention provides a one-way airflow backflushing device for residual liquid on the surface of steel wire that is easy to replace. The device can be replaced without interrupting production, thus improving production efficiency. At the same time, the device allows most of the airflow to be blown out from the inlet of the steel wire, improving the cleaning effect of residual liquid.

[0024] See Figure 1-5 This utility model mainly includes a nut 1, a backflush pipe formed by two identical semi-circular tubes 3 joined together, and two sealing gaskets 11. A steel wire 13 passes through the central hole 12 of the backflush pipe. The inlet end of the backflush pipe is provided with a prism boss 6, and the outlet end of the backflush pipe is provided with an external thread that matches the internal thread of the nut 1. The backflush pipe passes through the through holes on the two side walls of the air box 7 in sequence and is screwed into the nut 1. The prism boss 6 and the nut 1 provide axial positioning for the backflush pipe. A sealing gasket 11 is installed between the prism boss 6 and the nut 1 and the outer wall of the air box 7. The sealing gasket 11 is an annular nitrile rubber gasket, which plays a sealing role, so that the high-pressure air in the air box 7 does not leak and the pressure of the airflow is guaranteed.

[0025] The backflush pipe has an air inlet 2 in the middle, which is connected to the central hole 12 of the backflush pipe. The inner wall of the central hole 12 of the backflush pipe near the wire outlet 10 is provided with a number of annular airflow disturbance grooves 4 arranged along the axial direction of the backflush pipe. The longitudinal section (the section through the axis of the backflush pipe) of each airflow disturbance groove 4 is fishtail shaped. When the high-pressure air enters the central hole 12 of the backflush pipe from the air inlet 2 and flows out from the wire outlet 10, the airflow is disturbed by the airflow disturbance grooves 4, which hinders the flow of airflow. This causes the airflow to mainly flow out from the wire inlet 9 of the central hole 12. Since most of the airflow is concentrated in the wire inlet 9 and the flow direction is opposite to the movement direction of the steel wire 13, the relative speed between the airflow and the steel wire 13 is greatly increased, which greatly improves the cleaning effect of residual liquid and ensures product quality.

[0026] The backflush pipe is fitted with the through holes on the two side walls of the air box 7, which facilitates the disassembly and installation of the backflush pipe. Since the backflush pipe is made up of two semi-circular pipes 3 joined together, it can be replaced without disconnecting the steel wire after stopping the machine, which ensures the continuity of production and improves production efficiency.

[0027] In this embodiment, except for the sealing gasket 11, all components are made of PC (polycarbonate) material.

[0028] Nut 1 is an M18;

[0029] The backflush pipe is 100mm long; the length of the central cylindrical section is 65mm; and the outer diameter is 18mm.

[0030] The outer diameter of the sealing gasket 11 is 30mm; the inner diameter is 18mm; and the thickness is 3mm.

[0031] The minimum diameter of the center hole 12 of the backflush tube is either 4mm or 6mm, depending on the diameter of the steel wire being produced. For steel wires with a diameter of φ3.0 or less, a backflush tube with a minimum hole diameter of 4mm is selected, while for steel wires with a diameter of φ3.0 or more, a backflush tube with a minimum hole diameter of 6mm is selected.

[0032] Multiple backflush pipes are installed on the air box 7, with the center-to-center distance between the backflush pipes being 40mm. Figure 4 When installing the air box 7, it should be aligned with the steel wire from the previous process to avoid abrasion of the inner wall of the backflush pipe and to improve the service life of the backflush pipe.

[0033] The working principle of this backflush device is as follows:

[0034] See attached document Figure 1-5 The backflush pipe is pre-installed in the through holes on the two side walls of the air box 7. When threading the steel wire, nut 1 and sealing gasket 11 are threaded onto the wire. If the backflush pipe needs to be replaced during wire operation, nut 1 can be unscrewed, and the sealing gasket 11 adjacent to nut 1 can be removed. At this time, nut 1 and the adjacent sealing gasket 11 are still on the steel wire. The backflush pipe can be pulled out from the air box 7, and the other sealing gasket 11 can be removed. The backflush pipe can then be separated into two semi-circular pipes 3 and removed. The new backflush pipe can be installed in the reverse order of disassembly. When high-pressure air enters the inner cavity of the central hole 12 of the backflush pipe and flows out from the wire outlet 10, the airflow is disturbed by the airflow disturbance groove 4, hindering the airflow out and causing the airflow to mainly flow out from the wire inlet 9, ensuring the pressure of the backflush airflow and improving the backflush effect of the backflush device. The fitting clearance between the backflush pipe and the through holes on the two side walls of the air box 7 is 0.1-0.2mm, facilitating the disassembly and installation of the backflush pipe.

[0035] The beneficial effects of this invention are as follows: The backflush pipe is composed of two semi-circular pipes combined together. The central cylinder of the backflush pipe is in clearance fit with the through hole on the air box, which facilitates the disassembly of the backflush device. Disassembly and replacement can be performed without interrupting production, thus improving production efficiency. The inner cavity of the backflush pipe is designed with an annular airflow disturbance groove, which hinders the forward flow of air, ensuring that the airflow mainly flows out from the inlet, guaranteeing the pressure of the backflush airflow, and improving the backflush effect of the backflush device.

Claims

1. A one-way airflow backflushing device for residual liquid on the surface of steel wire that is easy to replace, characterized in that, Includes a backflush pipe and a nut (1). The backflush pipe is formed by two semi-circular pipes (3) joined together. A steel wire (13) passes through the central hole (12) of the backflush pipe. The steel wire inlet end of the backflush pipe is provided with a prism boss (6), and the steel wire outlet end is provided with an external thread that matches the internal thread of the nut (1). The steel wire outlet end of the backflush pipe passes through the through holes on the two side walls of the air box (7) in sequence and is screwed into the nut (1). The nut (1) and the prism boss (6) are both against the outer wall of the air box (7). An air inlet hole (2) communicating with the central hole (12) of the backflush pipe is provided in the middle of the backflush pipe.

2. The unidirectional airflow backflushing device for residual liquid on the surface of steel wire, which is easy to replace, as described in claim 1, is characterized in that... The inner wall of the central hole (12) of the backflush tube near the wire outlet (10) is provided with a plurality of annular airflow disturbance grooves (4) arranged along the axial direction of the backflush tube.

3. The unidirectional airflow backflushing device for residual liquid on the surface of steel wire, which is easy to replace, as described in claim 2, is characterized in that... The longitudinal section of the airflow disturbance groove (4) is fish tail shaped.

4. A one-way airflow backflushing device for residual liquid on the surface of steel wire that is easy to replace, as described in any one of claims 1-3, characterized in that, A sealing gasket (11) is installed between the prism boss (6) and the outer wall of the bellows (7), and between the nut (1) and the outer wall of the bellows (7).

5. The unidirectional airflow backflushing device for residual liquid on the surface of steel wire, which is easy to replace, according to claim 4, is characterized in that... The sealing gasket (11) is an annular nitrile rubber gasket.

6. The easily replaceable one-way airflow backflushing device for residual liquid on the surface of steel wire according to claim 5, characterized in that, The backflush pipe is fitted with the through holes on the two side walls of the air box (7) with clearance.

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