Quantitative feeding mechanism of heating furnace

Abstract

The utility model discloses a quantitative feeding mechanism of a heating furnace, and belongs to the technical field of heating furnaces. In order to solve the problems that in the feeding process, accurate quantification is difficult to achieve, and oxide skin is generated due to the fact that air enters a heating furnace, the air suction end of an air suction pump communicates with the interior of a quantitative feeding box, and after feeding of the interior of the quantitative feeding box is completed, the air suction pump sucks away air in the quantitative feeding box, so that when feeding is conducted in the heating furnace, the air suction pump sucks away air in the quantitative feeding box; a weighing base is arranged in a quantitative feeding box, a material pushing plate is arranged on the side, close to a side machine box, of the top of the weighing base, the weighing base in the quantitative feeding box detects the weight of materials, when the weight of the materials reaches a preset value, a spiral feeding barrel stops feeding, an opening and closing door is opened, and the material pushing plate is arranged on the side, close to the side machine box, of the top of the weighing base. Materials are released from the feeding port and enter the heating furnace, quantitative feeding of the heating furnace is achieved, the accuracy of the feeding amount each time is guaranteed, and optimization of process control is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a quantitative feeding mechanism for a heating furnace. Background Art

[0002] Pusher-type continuous heating furnaces rely on a pusher to move the billets within the furnace. Accurate quantitative control of the charge volume during conventional heating furnaces is often difficult to achieve. Furthermore, large amounts of air often enter the furnace during charging, leading to the formation of oxide scale and affecting product quality. Utility Model Content

[0003] The purpose of the utility model is to provide a quantitative feeding mechanism for a heating furnace, which can solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative feeding mechanism for a heating furnace, comprising a spiral feeding barrel and a quantitative feeding box, wherein the spiral feeding barrel is arranged obliquely above the quantitative feeding box, and the discharge port of the spiral feeding barrel is connected to the feed port at the top of the quantitative feeding box through a connecting pipe, a side case is provided on one side of the quantitative feeding box, and an air pump is provided on the top of the side case, and the suction end of the air pump is connected to the interior of the quantitative feeding box.

[0005] Preferably, a motor is provided at the top of the spiral feeding barrel, a spiral conveying rod is provided inside the spiral feeding barrel, and one end of the spiral conveying rod is fixedly connected to the output shaft of the motor.

[0006] Preferably, a weighing base is provided inside the quantitative feeding box, a push plate is provided on the top of the weighing base close to the side case, a first telescopic rod is provided inside the side case, one end of the first telescopic rod passes through the side case and is fixedly connected to the push plate.

[0007] Preferably, a feeding port is provided on the side of the quantitative feeding box away from the side chassis, an opening and closing door is provided on the inner side of the feeding port, a second telescopic rod is provided at the bottom of the quantitative feeding box, and one end of the second telescopic rod is connected to the bottom of the opening and closing door.

[0008] Preferably, a one-way valve is provided inside the quantitative feeding box, and the one-way valve is provided at the connection between the air extraction pump and the quantitative feeding box.

[0009] Preferably, a baffle is provided below the feed port, one side of the baffle is connected to the bottom of the feed port through an axle pin, and a return spring is provided on the other side of the baffle, and both ends of the return spring are respectively connected to the baffle and the inner wall of the quantitative feeding box through connecting buckles.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] The suction end of the vacuum pump in the utility model is connected with the interior of the quantitative feeding box. After the internal feeding of the quantitative feeding box is completed, the vacuum pump extracts the air from the interior of the quantitative feeding box, so that when feeding into the heating furnace, the amount of air entering is reduced, the formation of oxide scale is avoided, the waste of resources is reduced, and the forging quality is improved. A weighing base is provided inside the quantitative feeding box, and a pusher plate is provided on the top of the weighing base close to the side chassis. The weighing base inside the quantitative feeding box detects the weight of the material. When the preset value is reached, the motor stops working, the spiral feeding barrel stops feeding, the first telescopic rod drives the pusher plate to push the material inward, and the second telescopic rod drives the opening and closing door to open. The material is released from the feeding port into the heating furnace, which can realize quantitative feeding of the heating furnace, ensure the accuracy of the feeding amount each time, realize accurate feeding and automatic control, improve the automation level of production, and help optimize process control. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 for Figure 2 A is an enlarged schematic diagram.

[0015] In the figure: 1. Screw feeding barrel; 2. Dosing feeding box; 3. Side chassis; 4. Feeding pipe; 5. Motor; 6. Vacuum pump; 7. Screw conveying rod; 8. First telescopic rod; 9. Push plate; 10. Weighing base; 11. Second telescopic rod; 12. Opening and closing door; 13. Feeding port; 14. Inlet; 15. Baffle; 16. Return spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In order to solve the technical problems that it is often difficult to achieve accurate quantitative control during the feeding process of traditional heating furnaces, and a large amount of air often enters the heating furnace during feeding, causing oxide scale to form and affecting product quality, please refer to Figure 1-3 , this utility provides the following technical solutions:

[0018] The hopper 1 is connected to the charging port 14 on the top of the charging port 2, and the charging port 12 is connected to the charging port 15 on the top of the charging port 2.

[0019] A motor 5 is provided at the top of the spiral feeding barrel 1, and the bottom end of the spiral feeding barrel 1 is provided in the storage box. A spiral conveying rod 7 is provided inside the spiral feeding barrel 1, and one end of the spiral conveying rod 7 is fixedly connected to the output shaft of the motor 5. When the spiral feeding barrel 1 is driven by the motor 5, the spiral conveying rod 7 rotates, and the material in the storage box is gradually conveyed upward to the discharge port.

[0020] A weighing base 10 is provided inside the quantitative feeding box 2, a push plate 9 is provided on the top of the weighing base 10 close to the side chassis 3, a first telescopic rod 8 is provided inside the side chassis 3, one end of the first telescopic rod 8 passes through the side chassis 3 and is fixedly connected to the push plate 9, a feeding port 13 is provided on the side of the quantitative feeding box 2 away from the side chassis 3, an opening and closing door 12 is provided on the inner side of the feeding port 13, a second telescopic rod 11 is provided at the bottom of the quantitative feeding box 2, one end of the second telescopic rod 11 is connected to the bottom of the opening and closing door 12, and the quantitative feeding box 2 is provided with a first telescopic rod 11. The weighing base 10 at the top detects the weight of the material. When the preset value is reached, the motor 5 stops working, the spiral feeding drum 1 stops feeding, the first telescopic rod 8 drives the pushing plate 9 to push the material inward, and the second telescopic rod 11 drives the opening and closing door 12 to open. The material is released from the feeding port 13 into the heating furnace, which can realize quantitative feeding of the heating furnace and ensure the accuracy of the feeding amount each time. Through the cooperation of the weighing base 10, the pushing plate 9 and the opening and closing door 12, accurate feeding and automatic control are achieved, which improves the level of production automation and helps to optimize process control.

[0021] A baffle 15 is provided below the feed port 14, one side of the baffle 15 is connected to the bottom of the feed port 14 by an axle pin, and a return spring 16 is provided on the other side of the baffle 15, and both ends of the return spring 16 are respectively connected to the baffle 15 and the inner wall of the quantitative feeding box 2 through connecting buckles. The material enters the feed port 14 of the quantitative feeding box 2 through the material connecting pipe 4, and the baffle 15 is deflected downward due to the impact force of the material. After the material enters the quantitative feeding box 2, the return spring 16 resets the baffle 15 to ensure that the interior of the quantitative feeding box 2 is in a closed state when the vacuum pump 6 is pumping air, thereby improving the effect of extracting air inside the quantitative feeding box 2.

[0022] The working principle of the above content: driven by the motor 5, the spiral feeding cylinder 1 rotates the spiral conveying rod 7, and the material in the storage box is gradually transported upward to the discharge port. The material enters the feeding port 14 of the quantitative feeding box 2 through the connecting pipe 4. The baffle 15 is deflected downward due to the impact force of the material. After the material enters the quantitative feeding box 2, the return spring 16 resets the baffle 15, and the vacuum pump 6 extracts air inside the quantitative feeding box 2 to form a negative pressure, which helps the material to enter the quantitative feeding box 2 smoothly. At the same time, the air inside the quantitative feeding box 2 is extracted. The one-way valve prevents the vacuum pump 6 from backflowing air when it stops working. The weighing base 10 inside the quantitative feeding box 2 detects the weight of the material. When the preset value is reached, the motor 5 stops working, the spiral feeding cylinder 1 stops feeding, the first telescopic rod 8 drives the pushing plate 9 to push the material inward, and the second telescopic rod 11 drives the opening and closing door 12 to open, and the material is released from the feeding port 13 into the interior of the heating furnace.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative feeding mechanism for a heating furnace, comprising a spiral feeding cylinder (1) and a quantitative feeding box (2), characterized in that: The spiral feeding cylinder (1) is arranged obliquely above the quantitative feeding box (2); the discharge port of the spiral feeding cylinder (1) is connected to the feed port (14) at the top of the quantitative feeding box (2) through a connecting pipe (4); a side case (3) is provided on one side of the quantitative feeding box (2); an air pump (6) is provided on the top of the side case (3); and the suction end of the air pump (6) is connected to the interior of the quantitative feeding box (2).

2. A heating furnace quantitative feeding mechanism according to claim 1, characterized in that: A motor (5) is provided at the top end of the spiral feeding barrel (1), a spiral conveying rod (7) is provided inside the spiral feeding barrel (1), and one end of the spiral conveying rod (7) is fixedly connected to the output shaft of the motor (5).

3. The quantitative feeding mechanism for a heating furnace according to claim 1, characterized in that: A weighing base (10) is provided inside the quantitative feeding box (2), a push plate (9) is provided on the top of the weighing base (10) close to the side case (3), a first telescopic rod (8) is provided inside the side case (3), and one end of the first telescopic rod (8) passes through the side case (3) and is fixedly connected to the push plate (9).

4. A heating furnace quantitative feeding mechanism according to claim 3, characterized in that: A feeding port (13) is provided on a side of the quantitative feeding box (2) away from the side chassis (3), an opening and closing door (12) is provided on the inner side of the feeding port (13), a second telescopic rod (11) is provided at the bottom of the quantitative feeding box (2), and one end of the second telescopic rod (11) is connected to the bottom of the opening and closing door (12).

5. The quantitative feeding mechanism for a heating furnace according to claim 1, characterized in that: A one-way valve is provided inside the quantitative feeding box (2), and the one-way valve is provided at the connection between the air extraction pump (6) and the quantitative feeding box (2).

6. A heating furnace quantitative feeding mechanism according to claim 1, characterized in that: A baffle (15) is provided below the feed port (14), one side of the baffle (15) is connected to the bottom of the feed port (14) via an axle pin, and a return spring (16) is provided on the other side of the baffle (15), and both ends of the return spring (16) are respectively connected to the baffle (15) and the inner wall of the quantitative feeding box (2) via connecting buckles.

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