Automatic feeding mechanism of heating furnace

Abstract

The utility model discloses an automatic feeding mechanism of a heating furnace, and belongs to the technical field of steel rolling production. An automatic feeding mechanism of a heating furnace comprises a continuous heating furnace and a main walking beam, a steel outlet is formed in the side portion of one end of the continuous heating furnace, a bar outlet is formed in the end, close to the steel outlet, of the continuous heating furnace, and an inlet is formed in the other end of the continuous heating furnace. And a bar recycling roller way is arranged on the outer side of the continuous heating furnace from the bar outlet to the bar inlet. According to the automatic feeding mechanism of the heating furnace, bars and steel billets are grabbed through the bar crane and the steel billet crane and pushed into the continuous heating furnace through the steel pushing machine, the steel discharging machine is responsible for pushing the heated steel billets and the bars out of the continuous heating furnace, and therefore continuous work of the continuous heating furnace is achieved. Based on a PLC (Programmable Logic Controller) and a touch screen, the whole feeding mechanism is automatically controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling production, and more specifically to an automatic feeding mechanism for a heating furnace. Background Art

[0002] At present, the continuous heating furnace on the steel rolling production line, especially the loading of round steel billets at the entrance of the heating furnace, has always been in a manual operation state, which has many disadvantages such as poor working environment, high personnel cost and great safety hazards. In view of the above disadvantages and the characteristics of bar and billet loading, an automatic equipment dedicated to the heating furnace loading mechanism was designed and developed. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provides an automatic feeding mechanism for a heating furnace to solve the above deficiencies.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0005] An automatic loading mechanism for a heating furnace comprises a continuous heating furnace and a main walking beam, wherein a steel outlet is arranged on the side of one end of the continuous heating furnace, a bar outlet is arranged at one end of the continuous heating furnace close to the steel outlet, an entrance is arranged at the other end of the continuous heating furnace, a bar recovery roller is arranged on the outside of the continuous heating furnace from the bar outlet to the entrance, a bar recovery trolley is arranged at one end of the bar recovery roller close to the entrance, and a bar crane and a billet crane are respectively arranged at both ends of the main walking beam.

[0006] Preferably, the bar crane is placed above the bar recovery trolley, and a billet carrying trolley is provided below the billet crane.

[0007] Preferably, a steel pusher is provided at one end of the continuous heating furnace near the entrance, the steel pusher is directly opposite to the entrance of the continuous heating furnace, and a steel tapping machine is provided in the continuous heating furnace.

[0008] Preferably, the automatic loading mechanism of the heating furnace also includes a hydraulic system, which includes a hydraulic pump station and a plurality of hydraulic cylinders for driving the lateral movement of the bar recovery trolley, the lifting and grasping of the bar crane and the billet crane.

[0009] Preferably, the automatic feeding mechanism of the heating furnace also includes an automatic control system, and the automatic control system includes a PLC programmable logic controller and a human-computer interaction interface, which are used to monitor and control the operation of the entire feeding mechanism to achieve automatic interlocking control.

[0010] Preferably, the automatic feeding mechanism of the heating furnace is also provided with a manual control operation panel, on which are respectively provided control buttons for a bar recovery trolley, a bar crane control button, a billet crane control button and a master control operation button.

[0011] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0012] The utility model grabs bars and billets by means of a bar crane and a billet crane, and pushes them into a continuous heating furnace by means of a steel pusher, while a steel tapping machine is responsible for pushing the heated billets and bars out of the continuous heating furnace, thereby realizing continuous operation of the continuous heating furnace. Based on a PLC programmable logic controller and a touch screen, automatic control of the entire feeding mechanism is realized. Through a set program, the automatic control system can coordinate the actions of various components, realize accurate material transportation, temperature control of the heating furnace, and safety interlocking of the production process, thereby greatly improving production efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view schematic diagram of the automatic feeding mechanism of the heating furnace of the utility model;

[0014] Figure 2 It is a top view schematic diagram of the bar material recovery trolley and the steel billet carrying trolley of the utility model;

[0015] Figure 3 It is a schematic side view of the main walking beam connection of the utility model.

[0016] In the figure: 1. Continuous heating furnace; 11. Steel outlet; 12. Bar outlet; 2. Bar recovery roller; 3. Bar recovery trolley; 4. Main walking beam; 41. Bar crane; 42. Billet crane; 5. Steel pusher; 6. Billet carrying trolley. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0019] Combination Figure 1-Figure 3In this embodiment, the automatic loading mechanism of the heating furnace includes a continuous heating furnace 1 and a main walking beam 4, a steel outlet 11 is arranged on the side of one end of the continuous heating furnace 1, a bar outlet 12 is arranged at one end of the continuous heating furnace 1 close to the steel outlet 11, an entrance is arranged at the other end of the continuous heating furnace 1, a bar recovery roller 2 is arranged on the outside of the continuous heating furnace 1 from the bar outlet 12 to the entrance, the bar is transported from the outlet of the continuous heating furnace 1 back to the entrance of the heating furnace through the transport roller, a bar recovery trolley 3 is arranged at one end of the bar recovery roller 2 close to the entrance, the bar recovery trolley 3 is used to collect the bar transported by the bar recovery roller 2, and prepare the material and wait for the bar crane 41 to grab the bar, the two ends of the main walking beam 4 are respectively provided with a bar crane 41 and a billet crane 42, the main walking beam 4 is used to carry the bar crane 41 and the billet crane 42 to provide support.

[0020] In this embodiment, the bar crane 41 is placed above the bar recovery trolley 3. The bar crane 41 grabs the bar from the bar recovery trolley 3, and moves horizontally to the continuous heating furnace 1 to put down the bar. A billet carrying trolley 6 is arranged below the billet crane 42. The billet carrying trolley 6 places the prepared billets together to facilitate the billet crane 42 to grab the billets. The billet crane 42 grabs the billets from the billet carrying trolley 6, and moves horizontally to the continuous heating furnace 1, places the billets and then returns.

[0021] In this embodiment, a steel pusher 5 is provided near one end of the continuous heating furnace 1 near the entrance. The steel pusher 5 is directly opposite the entrance of the continuous heating furnace 1. The steel pusher 5 pushes the bars and billets into the continuous heating furnace 1. A steel tapping machine is provided in the continuous heating furnace 1. The steel tapping machine and the steel pusher 5 are used to assist the automatic safety interlocking control.

[0022] In this embodiment, the automatic loading mechanism of the heating furnace also includes a hydraulic system, which includes a hydraulic pump station and a plurality of hydraulic cylinders for driving the lateral movement of the bar recovery trolley 3, the lifting and grasping of the bar crane 41 and the billet crane 42, to ensure the smooth operation of the entire system.

[0023] In this embodiment, the automatic feeding mechanism of the heating furnace also includes an automatic control system, which includes a PLC programmable logic controller and a human-computer interaction interface. Sensors (such as photoelectric sensors, pressure sensors, temperature sensors, etc.) are connected to the input end of the PLC to monitor the status or environmental conditions of the equipment, and actuators (such as motors, solenoid valves, servo drives, etc.) are connected to the output end of the PLC to control the action of the equipment. The control logic is written using PLC programming software, and the sensor input is associated with the actuator output to create an automated control sequence. After completing the hardware connection and programming, debugging and testing are performed to ensure that the system can operate correctly according to the predetermined logic. The system is also equipped with safety and interlocking to realize safety functions, such as emergency stop, fault detection and interlocking mechanisms, to ensure the safe use of equipment under automated control. The automated control system monitors and controls the operation of the entire feeding mechanism to realize automated interlocking control.

[0024] In this embodiment, the automatic loading mechanism of the heating furnace is also provided with a manual control operation panel to identify the functional points in the equipment that need manual control, such as start, stop, speed adjustment, etc., and select the corresponding manual control device according to the function to be controlled, such as buttons for start / stop, knobs for speed adjustment, etc. The manual control device is connected to the control system of the equipment through wires. During the connection process, ensure that necessary safety measures are added, such as emergency stop buttons, limit switches, etc., to prevent accidental start-up or over-limit operation. The manual control operation panel is respectively provided with control buttons for the bar recovery trolley 3, the bar crane 41, the billet crane 42 and the general control operation button, which respectively control the bar recovery trolley 3, the bar crane 41, the billet crane 42 and the overall operation of the mechanism.

[0025] Working process: Before operation, set the parameters of the automatic loading mechanism of the heating furnace, check whether the mechanism is operating normally, select manual control or automatic control, control the bar crane 41 to grab the bar from the bar recovery trolley 3, and move it horizontally to the continuous heating furnace 1, put down the bar, the billet crane 42 grabs the billet from the billet carrying trolley 6, and moves it horizontally to the continuous heating furnace 1, places the billet and then returns, the pusher 5 pushes the bar and billet into the continuous heating furnace 1, and the steel tapping machine is responsible for pushing the heated billets and bar out of the furnace, jointly ensuring the safe entry and exit of the materials in the heating furnace, the bar coming out of the continuous heating furnace 1 returns to the bar recovery trolley 3 through the bar recovery roller 2, and the bar crane 41 realizes the grabbing.

[0026] In summary: the utility model is an automatic feeding mechanism for a heating furnace, which grabs bars and billets through a bar crane 41 and a billet crane 42, and pushes them into the continuous heating furnace 1 through a steel pusher 5, while the steel tapping machine is responsible for pushing the heated billets and bars out of the continuous heating furnace 1, thereby realizing the continuous operation of the continuous heating furnace 1. Based on a PLC programmable logic controller and a touch screen, automatic control of the entire feeding mechanism is realized. Through the set program, the automatic control system can coordinate the actions of various components, realize the precise transportation of materials, the temperature control of the heating furnace and the safety interlocking of the production process, thereby greatly improving the production efficiency and safety.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic loading mechanism for a heating furnace, comprising a continuous heating furnace (1) and a main walking beam (4), characterized in that: A steel outlet (11) is arranged on the side of one end of the continuous heating furnace (1), a bar outlet (12) is arranged at one end of the continuous heating furnace (1) close to the steel outlet (11), an entrance is arranged at the other end of the continuous heating furnace (1), a bar recovery roller (2) is arranged on the outside of the continuous heating furnace (1) from the bar outlet (12) to the entrance, a bar recovery trolley (3) is arranged at one end of the bar recovery roller (2) close to the entrance, and a bar crane (41) and a billet crane (42) are respectively arranged at both ends of the main walking beam (4).

2. The automatic feeding mechanism for a heating furnace according to claim 1 is characterized in that: The bar crane (41) is placed above the bar recovery trolley (3), and a billet carrying trolley (6) is arranged below the billet crane (42).

3. The automatic feeding mechanism for a heating furnace according to claim 1 is characterized in that: A steel pusher (5) is arranged near one end of the entrance of the continuous heating furnace (1), and the steel pusher (5) is directly opposite to the entrance of the continuous heating furnace (1). A steel tapping machine is arranged in the continuous heating furnace (1).

4. The automatic feeding mechanism for a heating furnace according to claim 1 is characterized in that: It also includes a hydraulic system, which includes a hydraulic pump station and a plurality of hydraulic cylinders, and is used to drive the lateral movement of the bar material recovery trolley (3), the lifting and grasping of the bar material crane (41) and the billet crane (42).

5. The automatic feeding mechanism for a heating furnace according to claim 1 is characterized in that: It also includes an automated control system, which includes a PLC programmable logic controller and a human-computer interaction interface, which are used to monitor and control the operation of the feeding mechanism and realize automated interlocking control.

6. The automatic feeding mechanism for a heating furnace according to claim 1 is characterized in that: A manual control operation panel is also provided, on which control buttons for a bar material recovery trolley (3), a bar material crane (41), a billet crane (42) and a master control operation button are respectively provided.

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