Automatic feeding device and method for oxygen lance tube

Abstract

The embodiment of the present application provides a kind of automatic feeding equipment and method for oxygen lance pipe, and the automatic feeding equipment for oxygen lance pipe includes: main body structure, for as the support of automatic feeding equipment;Feeding structure is fixed at the both ends of main body structure, including longitudinally arranged chute, the discharge port at top and the discharge port at bottom, the groove diameter of chute and the size of oxygen lance pipe are matched, so that oxygen lance pipe is transversely placed in chute from discharge port and slides to the discharge port at bottom under its gravity;Cylinder mechanism is set at the discharge port corresponding to one end of oxygen lance pipe, including an axially retractable push rod, push rod is resisted oxygen lance pipe and is pushed out along the axial direction and enters oxygen lance pipe;Clamp mechanism is set at the other end of oxygen lance pipe and is placed at the position for being preset, for clamping the oxygen lance pipe that is pushed out and is placed at the place to be installed.It is very suitable for cost-sensitive and reliable automated manufacturing scene.

Description

Technical Field

[0001] This invention belongs to the field of automated smelting processing, and in particular relates to an automatic feeding device and method for oxygen lance tubes. Background Technology

[0002] An oxygen lance is a tubular device that blows high-pressure, high-purity oxygen at supersonic speeds into the molten metal pool above a converter. It is equipped with a high-pressure water cooling protection system. As a pipeline structure used to transport high-purity oxygen, the oxygen lance tube is easily damaged in the molten metal pool, so it is used as a consumable.

[0003] In existing technologies, the feeding strategy usually involves manual feeding, which is time-consuming and labor-intensive. The environment around the molten metal pool is harsh, dangerous, and can easily cause the manufacturing process to stop. Alternatively, a track can be used as a carrier to transport oxygen lance tubes, and a robotic arm can be used to manually identify the oxygen lance tubes on the track and pick them up to the equipment for automatic replacement. However, the purchase cost of robotic arms is high, and the integration with machine vision requires complex research and development design, long-term maintenance, and repeated testing with the supplier after replacing the oxygen lance tube. In addition, it lacks versatility and economical maintenance.

[0004] Therefore, there is an urgent need for a low-cost, highly versatile, and easy-to-maintain feeding product. Summary of the Invention

[0005] To address the technical problems identified in the prior art, this invention provides an automatic feeding device and method for oxygen lance tubes.

[0006] The first aspect of this application provides an automatic feeding device for oxygen lance tubes. The automatic feeding device includes: a main structure for supporting the automatic feeding device; a feeding structure including a feeding unit fixed to the main structure, the feeding unit including a longitudinally arranged material trough, a discharge port at the top and a discharge port at the bottom, the diameter of the material trough matching the size of the oxygen lance tube, so that the oxygen lance tube is placed laterally in the material trough from the discharge port and slides down to the discharge port at the bottom under its own weight; a cylinder mechanism disposed at the discharge port corresponding to one end of the oxygen lance tube, including at least one axially extendable push rod, the push rod abutting against the oxygen lance tube and extending axially to push the oxygen lance tube out; and a clamping mechanism disposed at a preset position at the other end of the oxygen lance tube for clamping the pushed-out oxygen lance tube and placing it at the installation location.

[0007] In the optional schemes of this application, the feeding units are symmetrically arranged on the left and right sides relative to the main structure; the material trough is a longitudinal arc-shaped channel, and the discharge port is located at the center of the main structure.

[0008] In the optional scheme of this application, the feeding unit includes: a guide branch pipe, which is connected to the main structure and arranged longitudinally by a fixing plate; the guide branch pipes are arranged at intervals, and the gaps in the middle form a material trough; one end of the top of the guide branch pipe extends outward to form a bucket-shaped inlet; and one end of the bottom of the guide branch pipe faces the central longitudinal beam to form an outlet.

[0009] In the optional scheme of this application, the central longitudinal beam is provided with an elastic limiting structure at the position of the corresponding discharge port. The elastic limiting structure has an elastic force along the radial direction of the oxygen lance tube to limit the oxygen lance tube falling from the discharge port. The oxygen lance tube slides down from the discharge port under its own gravity to the discharge port and is locked at the elastic limiting structure. Under the pushing force of the push rod, it is pushed out to the clamping mechanism for locking and then pulled out. The push rod is retracted, and the next oxygen lance tube will automatically flow down for position compensation.

[0010] In one of the optional solutions in this application, an electronic proximity switch is provided on the central longitudinal beam. The electronic proximity switch is used to detect whether an oxygen lance tube is present in the discharge port.

[0011] In an optional embodiment of this application, the clamping mechanism is connected to a movable moving mechanism. The clamping mechanism includes a chuck and a drive motor. The chuck includes a central hole. A cylinder mechanism pushes the oxygen lance tube into the central hole, and the drive motor drives the chuck to lock.

[0012] In the optional scheme of this application, there are two push rods, which are set on both sides of the central longitudinal beam; after the clamping mechanism picks up the oxygen lance tube, it moves the oxygen lance tube upward or pulls it out away from the direction of the cylinder mechanism.

[0013] In a second aspect of this application, the automatic feeding method is used in the automatic feeding equipment described above, comprising: S1, a horizontally placed oxygen lance tube flows through a longitudinally arranged material trough to the outlet and is fixed; S2, a cylinder mechanism at the outlet is controlled to axially push the oxygen lance tube from one end into the clamping mechanism; S3, the clamping mechanism picks up the oxygen lance tube and places it at the installation location for automatic installation.

[0014] In an optional embodiment of this application, the automatic feeding device includes an electronic proximity switch for detecting the presence of an oxygen lance tube at the discharge port. Upon receiving a first electrical signal from the electronic proximity switch, the device determines that an oxygen lance tube is present at the discharge port and executes step S2. If no electrical signal is received from the electronic proximity switch for a preset first duration, the device determines that the oxygen lance tube is short of material, executes the reset cylinder mechanism and clamping mechanism, and provides an alert via a preset alarm device. The first electrical signal is a continuous electrical signal for a preset second duration.

[0015] In the optional scheme of this application, the automatic feeding method further includes: receiving a third electrical signal from an electronic proximity switch, determining that the oxygen lance tube has been picked up and removed by the cylinder mechanism, and executing a control to retract the cylinder mechanism at the discharge port; wherein the third electrical signal is an electrical signal at a preset third time interval.

[0016] Beneficial effects:

[0017] This invention provides an automatic feeding device for oxygen lance tubes. Through a simple main structure combined with a feeding structure, the drive unit only requires a cylinder mechanism and a clamping mechanism. The device has low material costs, a simple drive and structural design, high reliability, and is easy to maintain and use. Furthermore, it only requires partial adjustments to accommodate different oxygen lance tubes. It is highly suitable for automated manufacturing scenarios that are sensitive to cost factors while also ensuring reliability.

[0018] In addition, the feeding method matched with this equipment can achieve automated feeding without complex electrical control signals, making it easy to adjust and put into operation, and meeting the general production process control requirements.

[0019] Other features and advantages of the embodiments of the present invention will be described in the following detailed description section. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an automatic feeding device for oxygen lance tubes provided as an embodiment of the present invention;

[0022] Figure 2 This is a side view of the automatic feeding device provided in an embodiment of the present invention;

[0023] Figure 3 This is a top view of the automatic feeding device provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the feeding structure and connecting parts in the automatic feeding device for oxygen lance tubes provided in an embodiment of the present invention;

[0025] Figure 5 This is an enlarged view of a cross-section in the width direction of the automatic feeding device for oxygen lance tubes provided in an embodiment of the present invention; and

[0026] Figure 6 This is a flowchart of an automatic feeding method for oxygen lance tubes provided in an embodiment of the present invention.

[0027] Figure Labels

[0028] 100. Automatic feeding equipment; 11. Main structure;

[0029] 12. Feeding structure; 13. Cylinder mechanism;

[0030] 14. Clamping mechanism; 15. Elastic limiting structure;

[0031] 16. Electronic proximity switch; 111. Vertical bracket;

[0032] 112. Crossbeam; 113. Central longitudinal beam;

[0033] 114. Mounting plate; 121a. Feed trough;

[0034] 121b, Inlet; 121c, Outlet;

[0035] 131. Push rod; 1211. Guide branch pipe. Detailed Implementation

[0036] To make the above and other features and advantages of the present invention clearer, the invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0037] As previously stated, the feeding of existing oxygen lance tubes is heavily reliant on manual labor, which cannot meet the efficiency requirements of modern production and poses safety risks. If non-standard designs are made using existing pipeline feeding equipment, firstly, the oxygen lance tube structure is not a completely cylindrical rod, making the required design very complex. Secondly, oxygen lance tubes are mostly used in smelting, which belongs to a highly intensive secondary industry, and cost and reliability issues need to be considered. The requirements must include characteristics such as "durability, low cost without long-term maintenance, high versatility, and simple operation".

[0038] Please see Figures 1-2 ; Figure 1 A schematic diagram of the structure of an automatic feeding device 100 for oxygen lance tubes provided as an embodiment of the present invention; Figure 2 This is a side view of the automatic feeding device 100 provided in an embodiment of the present invention.

[0039] In this application, the automatic feeding equipment 100 includes a main structure 11, a feeding structure 12, a cylinder mechanism 13, and a clamping mechanism 14;

[0040] The main structure 11 serves as a support for the automatic feeding device 100; the feeding structure 12 is mounted on the main structure 11, and the oxygen lance tubes are stacked longitudinally from the feeding structure 12. The cylinder mechanism 13 and the clamping mechanism 14 are respectively mounted at both ends of the main structure 11.

[0041] In this application, since the automatic feeding device 100 is horizontal, the surface viewed from the length direction of the automatic feeding device 100 is its end face, and the surface viewed from the width direction is its side face, and the same applies below.

[0042] Figure 2 It can be seen that the main structure 11 includes two parallel vertical supports 111, which are connected in the middle by a crossbeam 112 to increase overall stability.

[0043] Furthermore, a central longitudinal beam 113 is provided on the crossbeam 112, and the central longitudinal beam 113 is arranged along the length direction of the automatic feeding equipment 100. Mounting plates 114 are provided at both ends of the vertical support, and the mounting plates 114 are used to fix the feeding structure 12 and the cylinder mechanism 13.

[0044] It is understood that the main structure 11 is merely an example of the automatic feeding device 100, and its support structure can be designed to be horizontal or vertical depending on the shape.

[0045] In this embodiment of the invention, the feeding structure 12 is fixed at both ends of the main structure 11. The feeding structure 12 includes multiple feeding units 121. Each feeding unit 121 includes a longitudinally arranged material trough 121a, a discharge port 121b at the top, and a discharge port 121c at the bottom. It is mainly used for automatic feeding of oxygen lance tubes.

[0046] It is understood that the oxygen lance tube is placed from the feed port 121b, and its placement orientation is horizontal along the length direction of the automatic feeding device 100; wherein the material trough 121a is a sliding cavity, the diameter of the cavity is matched with the size of the oxygen lance tube, so that the oxygen lance tube can be placed from the feed port 121b into the material trough 121a in sequence, and slide down to the discharge port 121c at the bottom under its own gravity.

[0047] Please continue to combine Figures 1-2 And see Figure 3 , Figure 3 This is a top view of the automatic feeding device 100 provided in an embodiment of the present invention.

[0048] The cylinder mechanism 13 is located at the outlet 121c corresponding to one end of the oxygen lance tube, and includes an axially extendable push rod 131. The push rod 131 abuts against the oxygen lance tube and extends axially to push the oxygen lance tube out. The clamping mechanism 14 is located at a preset position at the other end of the oxygen lance tube and is used to clamp the pushed-out oxygen lance tube and place it at the installation location.

[0049] It is understandable that when the cylinder mechanism 13 is in use, the operator can stand on the side of the automatic feeding equipment 100 and place the oxygen lance tube into the discharge port 121b of the feeding structure 12. Due to the longitudinal arrangement of the feeding structure 12, the oxygen lance tubes automatically stack up under the gravitational potential energy, and the bottom oxygen lance tube stops at the discharge port 121c.

[0050] The cylinder mechanism 13 is located at the discharge port 121c, corresponding to one end of the oxygen lance tube at the bottom. The clamping mechanism 14 is located at the other end of the oxygen lance tube. The cylinder mechanism 13 extends axially into the oxygen lance tube and pushes it out into the clamping mechanism 14 at the other end. The clamping mechanism 14 drives and locks the oxygen lance tube. The moving mechanism (such as a robotic arm) connected to the clamping mechanism 14 drives the clamping mechanism to move the oxygen lance tube out. At this time, the cylinder mechanism 13 retracts, and the next oxygen lance tube will fill the position of the moved oxygen lance tube. The cylinder mechanism 13 and the clamping mechanism 14 are time-controlled to perform automated feeding.

[0051] In summary, the automatic feeding device 100 for oxygen lance tubes provided in this embodiment of the invention, through a simple main structure 11 combined with a feeding structure 12, requires only a cylinder mechanism 13 and a clamping mechanism 14 for the drive part. The material costs required for the device are low, the drive and structural design are simple, the reliability is high, and it is easy to maintain and use. Furthermore, only partial adjustments are needed to accommodate different oxygen lance tube applications. It is highly suitable for manufacturing scenarios that are sensitive to cost factors while also considering reliability.

[0052] Please combine Figures 1-3 And see Figure 4 , Figure 4 This is a schematic diagram of the feeding structure 12 and connecting parts in the automatic feeding device 100 for oxygen lance tubes provided in an embodiment of the present invention;

[0053] The feeding unit 121 is symmetrically arranged relative to the main structure 11, that is, it is arranged along the length centerline of the main structure 11.

[0054] The feeding unit 121 is connected to the two inner ends of the vertical support 121. The material trough 121a is set as a longitudinal arc-shaped channel, and the discharge port 121c faces the central area of ​​the main structure 11, that is, the central longitudinal beam 123.

[0055] The feeding units 121 are located along the inner side of the vertical support 121 and adopt a symmetrical design to ensure the overall efficiency of the automatic feeding equipment 100. That is, the user can feed materials from both sides at the same time, which can greatly reduce costs and the number of required mechanisms, as can be seen from the following text.

[0056] The material trough 121a is designed as a longitudinal arc-shaped channel. The inlet 122 is located inside the vertical support 121, and the outlet 121c is located at the center of the main structure 11. That is, the material trough 121a transitions from the side of the vertical support 121 to the center in an arc shape, which can make full use of the equipment space and store more oxygen lance tubes. At the same time, the arc-shaped channel can reduce the mutual compression of oxygen lance tubes and avoid damage to the oxygen lance tubes.

[0057] Furthermore, the feeding unit 121 includes:

[0058] Guide branch pipe 1211 is longitudinally arranged on the main structure 11 and connected to the main structure 11 by a fixing plate;

[0059] By arranging the guide branch pipes 1211 at intervals, the gaps in the middle form the material trough 121a;

[0060] The first port at the top of the guide branch pipe 1211 extends outward to form a bucket-shaped inlet 121b;

[0061] One end of the bottom of the guide branch pipe 1211 faces the central longitudinal beam 123 to form the discharge port 121c.

[0062] It is understandable that by changing the distance between the guide branch pipe 1211 and the mounting plate 114, different oxygen lance sizes can be accommodated, thus achieving high versatility.

[0063] In this embodiment, an elastic limiting structure 15 is provided inside the central longitudinal beam 123 at the position corresponding to the discharge port 121c. The elastic limiting structure 15 provides elastic force along the radial direction of the oxygen lance tube to limit the oxygen lance tube and prevent the oxygen lance tube from dislodging under the action of compression.

[0064] The oxygen lance tube slides down from the feed port 121b to the discharge port 121c under its own gravity and is locked at the elastic limiting structure. Under the pushing force of the push rod 131, it is pushed out to the clamping mechanism for locking and then pulled out. The push rod 131 retracts, and the next oxygen lance tube will automatically flow down for position compensation.

[0065] Please see Figure 3 and Figure 5 and Figure 6 ; Figure 5 This is an enlarged view of a cross-section in the width direction of the automatic feeding device 100 for oxygen lance tubes provided in an embodiment of the present invention.

[0066] In this embodiment of the invention, elastic limiting structures 15 are provided on both sides of the central longitudinal beam 123 to correspond to the discharge ports 121c of the feeding units 121 on both sides.

[0067] Correspondingly, there are two push rods 131, which are set on both sides of the central longitudinal beam 123 and are used to push out the oxygen lance tubes on both sides of the central longitudinal beam 123 respectively; the clamping mechanism 14 is connected to a movable moving mechanism (not shown in the figure). The clamping mechanism 14 includes a chuck and a drive motor (not labeled in the figure). The chuck includes a central hole. The cylinder mechanism 13 pushes the oxygen lance tube into the central hole, and the drive motor 142 drives the chuck to lock.

[0068] Furthermore, after the clamping mechanism 14 picks up the oxygen lance tube, it moves the oxygen lance tube upward or pulls it out away from the direction of the cylinder mechanism 13 to avoid interference with other structures.

[0069] Continue reading Figure 2 An electronic proximity switch 16 is installed on the central longitudinal beam. The electronic proximity switch 16 is used to detect whether there is an oxygen lance tube in the discharge port 121c.

[0070] Please see Figure 6 , Figure 6 The flowchart illustrates an automatic feeding method for oxygen lance tubes provided in an embodiment of the present invention. The present invention also provides an automatic feeding method for use in the automatic feeding device 100 described above, the automatic feeding method comprising:

[0071] Step S1: The horizontally placed oxygen lance tube flows through the longitudinally arranged material troughs to the outlet and is fixed.

[0072] Step S2: Control the cylinder mechanism at the discharge port to axially push the oxygen lance tube from one end into the clamping mechanism;

[0073] Step S3: The clamping mechanism picks up the oxygen lance tube and places it at the installation location for automatic installation.

[0074] It is understandable that the elastic limiting structure at the bottom outlet can fix the oxygen lance tube, and the cylinder mechanism pushes it into the clamping mechanism, thereby completing the automatic feeding.

[0075] Furthermore, the automated feeding equipment includes an electronic proximity switch for detecting the presence of an oxygen lance tube at the discharge port. See also... Figure 4 , Figure 4 This is a flowchart of an automatic feeding method for oxygen lance tubes provided in an embodiment of the present invention; the automatic feeding method further includes:

[0076] Step SA1: Receive the first electrical signal from the electronic proximity switch to confirm the presence of an oxygen lance at the discharge port, and execute S2;

[0077] Step SA2: After a preset first time period during which no electrical signal from the electronic proximity switch is received, it is determined that the oxygen lance tube is short of material, and step S4 is executed.

[0078] Step S4: Reset the cylinder mechanism and clamping mechanism, and provide a warning through a preset alarm device;

[0079] The first electrical signal is an uninterrupted electrical signal that lasts for a preset second duration.

[0080] Automatic feeding methods also include:

[0081] Step SA3: Receive the third electrical signal from the electronic proximity switch to confirm that the oxygen lance tube has been picked up and removed by the cylinder mechanism, and execute step S5.

[0082] Step S5: Retract the cylinder mechanism at the discharge port;

[0083] The third electrical signal is an electrical signal spaced at preset third time intervals;

[0084] It is understandable that this automatic feeding method is designed based on the characteristics of the automatic feeding equipment 100. It can complete the overall control loop through simple electrical signals. That is, when there is an oxygen lance tube at the outlet, the electronic proximity switch receives a continuous electrical signal; when the oxygen lance tube is pulled out, the electronic proximity switch receives an intermittent electrical signal; when the oxygen lance tube is used up, the electronic proximity switch receives no electrical signal.

[0085] Therefore, it can be seen that the control method required for the automatic feeding device 100 provided by the present invention is very simple, and it can adapt to oxygen lance tubes of various sizes and models in subsequent production and manufacturing. For example, in this application, when the stroke of the cylinder mechanism is 300mm, it can be adapted to oxygen lance tubes with an outer diameter of 17.2mm, an inner diameter of 14.2mm, and a length of 2000mm. When the oxygen lance tube is replaced, the above-mentioned control method and most parameters do not need to be changed. Moreover, the automatic feeding device 100 itself has a very low manufacturing cost, and its structure is very simple and easy to relocate. It does not require professional personnel for maintenance and non-standard debugging. Because of its simple structure and control, its reliability and stability are very high, making it very suitable for large-scale secondary industry manufacturing, such as steel ladle smelting and other technical fields.

[0086] Furthermore, those skilled in the art should understand that if all or part of the sub-modules involved in the automatic feeding equipment provided in the embodiments of the present invention are combined or replaced by means of merging, simple changes, mutual transformation, etc., such as moving the position of each component; or setting the product they constitute as a whole; or having a detachable design; any combined components can form a device / apparatus / system with a specific function, and using such a device / apparatus / system to replace the corresponding components of the present invention also falls within the protection scope of the present invention.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic feeding device for oxygen lance tubes, characterized in that, include: The main structure serves as a support for the automatic feeding equipment. The main structure includes two parallel vertical supports and a crossbeam, with the vertical supports connected in the middle by the crossbeam. The feeding structure includes a feeding unit fixed on the main structure. The feeding unit includes a longitudinally arranged trough, a discharge port at the top, and a discharge port at the bottom. The diameter of the trough matches the size of the oxygen lance tube so that the oxygen lance tube is placed laterally in the trough from the discharge port and slides down to the discharge port at the bottom under its own gravity. A cylinder mechanism is provided at the outlet corresponding to one end of the oxygen lance tube, and includes at least one axially extendable push rod, which abuts against the oxygen lance tube and extends axially to push the oxygen lance tube out. A clamping mechanism is set at a preset position at the other end of the oxygen lance tube, and is used to clamp the pushed-out oxygen lance tube and place it at the installation position; The feeding units are respectively arranged symmetrically on the left and right sides of the main structure; The trough is a longitudinal arc-shaped channel, and the discharge ports are all located at the center of the main structure; The main structure includes a central longitudinal beam along the length direction, and the feeding unit includes a guide branch pipe, which is connected to the main structure and arranged longitudinally through a fixing plate. The guide branch pipes are arranged at intervals, and the gaps in the middle form the material trough; One end of the top of the guide branch extends outward to form a bucket-shaped inlet; One end of the bottom of the guide branch pipe forms a discharge port facing the central longitudinal beam; The central longitudinal beam is provided with an elastic limiting structure at the position corresponding to the discharge port. The elastic limiting structure has an elastic force along the radial direction of the oxygen lance tube to limit the oxygen lance tube falling from the discharge port. The oxygen lance tube slides down from the feed port to the discharge port under its own gravity and is locked at the elastic limiting structure. Under the pushing force of the push rod, it is pushed out to the clamping mechanism for locking and then pulled out. The push rod is retracted, and the next oxygen lance tube will automatically flow down for position compensation. There are two push rods, which are set on both sides of the central longitudinal beam; After the clamping mechanism picks up the oxygen lance tube, it moves the oxygen lance tube upward or pulls it out in the direction away from the cylinder mechanism.

2. The automatic feeding device according to claim 1, characterized in that, An electronic proximity switch is installed on the central longitudinal beam, which is used to detect whether an oxygen lance tube is present in the discharge port.

3. The automatic feeding device according to any one of claims 1 to 2, characterized in that, The clamping mechanism is connected to a movable moving mechanism. The clamping mechanism includes a chuck and a drive motor. The chuck includes a central hole. The cylinder mechanism pushes the oxygen lance tube into the central hole, and the drive motor drives the chuck to lock.

4. An automatic feeding method for oxygen lance tubes, characterized in that, The automatic feeding method is used in the automatic feeding equipment as described in any one of claims 1 to 3 above, comprising: S1. The horizontally placed oxygen lance tube flows through the longitudinally arranged material troughs to the outlet and is fixed. S2. Control the cylinder mechanism at the discharge port to axially push the oxygen lance tube from one end into the clamping mechanism. S3. The clamping mechanism picks up the oxygen lance tube and places it at the installation location for automatic installation.

5. The automatic feeding method according to claim 4, wherein the automatic feeding device includes a device for detecting the discharge port. The presence or absence of an electronic proximity switch for the oxygen lance tube, characterized in that, The automatic feeding method further includes: Upon receiving the first electrical signal from the electronic proximity switch, it is determined that the oxygen lance tube exists at the discharge port, and S2 is executed. If no electrical signal is received from the electronic proximity switch for a preset first duration, it is determined that the oxygen lance tube is short of material. The cylinder mechanism and clamping mechanism are reset, and a reminder is given through a preset alarm device. The first electrical signal is an uninterrupted electrical signal for a preset second duration.

6. The automatic feeding method according to claim 5, characterized in that, The automatic feeding method further includes: Upon receiving the third electrical signal from the electronic proximity switch, it is determined that the oxygen lance tube has been picked up and removed by the cylinder mechanism, and the cylinder mechanism at the discharge port is retracted. The third electrical signal is an electrical signal spaced at a preset third time interval.

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