Precise feeding device for metallurgical raw materials

Abstract

The invention relates to the technical field of metallurgical equipment, in particular to an accurate feeding device for metallurgical raw materials. The loading part comprises a loading hopper arranged above the feeding end close to the belt conveyor. The supporting legs are used for increasing the height of the belt conveyor; the container comprises a plurality of outer shells, inner shells, springs and small vibration motors, wherein the bottoms of the outer shells are connected to the belt face of the belt conveyor at equal intervals, the inner shells are sleeved with inner cavities of the outer shells, the springs are connected between the bottom faces of the inner shells and the bottom faces of the inner cavities of the outer shells, and the small vibration motors are fixed to the bottom faces of the inner shells. The battery panel and the control circuit board are fixed on the bottom surface of an inner cavity of the outer shell; the tilt angle sensor is mounted on the control circuit board; the problems that in the powder metallurgy machining process, accurate powder raw material adding is difficult to achieve, and the feeding efficiency is not high are well solved.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical equipment, and in particular to a precise feeding device for metallurgical raw materials. Background Art

[0002] Powder metallurgy is a process technology that uses metal or metal powder (or a mixture of metal powder and non-metal powder) as raw materials, and then forms and sinters them to manufacture metal materials, composite materials, and various types of products. Powder metallurgy technology can directly produce porous, semi-dense or fully dense materials and products, such as oil-containing bearings, gears, cams, guide rods, tools, etc.

[0003] In the powder metallurgy process, the metallurgical raw material powder needs to be quantitatively fed into the furnace through the hopper. The current feeding operation is: first put the weighed raw material powder into the container, then transfer the container with the raw material powder to the hopper, pour the raw material powder into the hopper, and finally add the raw material powder to the furnace through the hopper to complete the quantitative feeding operation. However, during the feeding process, different degrees of raw material residue often appear in the inner corners of the container, making it difficult to achieve accurate feeding, and the process is complicated and the feeding efficiency is not high. Summary of the invention

[0004] The object of the present invention is to provide a precise feeding device for metallurgical raw materials, which is used to solve the problem in the prior art that it is difficult to precisely add powder raw materials and the feeding efficiency is low during powder metallurgy processing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precise feeding device for metallurgical raw materials, comprising a feeding hopper and a container, wherein the feeding hopper is installed on the lower side of the discharge end of the belt conveyor; the charging piece comprises a charging hopper arranged above the feeding end of the belt conveyor; the support legs are used to increase the height of the belt conveyor; the container comprises a plurality of outer shells whose bottoms are equidistantly connected to the belt surface of the belt conveyor, an inner shell mounted in the inner cavity of the outer shell, a spring connected between the bottom surface of the inner shell and the bottom surface of the inner cavity of the outer shell, a small vibration motor fixed to the bottom surface of the inner shell, a battery panel and a control circuit board fixed to the bottom surface of the inner cavity of the outer shell, and an inclination sensor installed on the control circuit board.

[0006] Preferably, the belt conveyor has clamping pieces provided in pairs on both sides of the middle of the belt surface, and connecting plates fixedly engaged with and matching the clamping pieces are fixed to the bottom ends of the outer walls on both sides of the outer shell.

[0007] Preferably, the feeding hopper includes a slide fixed on both sides of the top end on the support legs below the unloading end of the belt conveyor, an end plate fixed at both ends of the inner cavity of the slide, and a vertical cylinder with the top end connected to the middle part of the bottom end of the slide, and a through groove is provided at the top middle part of the end plate at the top end of the slide.

[0008] Preferably, the loading piece also includes a support plate arranged above the feeding end of the belt conveyor and a vertical plate whose top end is fixed to the four corners of the support plate and whose bottom end is fixed to the belt conveyor frame. A slot hole is provided in the middle of the support plate, and the bottom end of the loading hopper is fixedly connected to the slot hole.

[0009] Preferably, a support frame is further included, wherein the support plate is provided with a slot at a position inside the slot hole, the support frame includes a side strip at one end butted against both sides of the slot, and a vertical plate 2 with the top fixed to the side strip and the bottom fixed to the belt conveyor frame, a sealing plate assembly is elastically connected below the side strip and both sides of the slot, and the bottom surface of the sealing plate assembly is in contact with the corresponding top of the inner shell.

[0010] Preferably, the sealing plate assembly includes a rubber plate, a suspension bolt that is vertically slidably mounted on the top of the rubber plate at the edges of both sides of the rubber plate, a second spring mounted on the top of the suspension bolt, and a clamping nut that is threadedly mounted on the top of the suspension bolt, the second spring is supported between the top surface of the rubber plate and the side strip and the bottom surface of the support plate, and the clamping nut is pressed against the top surface of the side strip and the top surfaces on both sides of the slot.

[0011] Preferably, a support ring supported on the top end of the outer shell is provided at the outer edge of the top end of the inner shell.

[0012] Preferably, a photoelectric sensor is fixed on the vertical plate at a position corresponding to the slot, and an output end of the photoelectric sensor is associated with an electrical signal of a control switch of the belt conveyor.

[0013] Preferably, the cross-sections of the outer shell and the inner shell are oblong.

[0014] Preferably, the bottom of the clamping member is a bendable plate and the bendable plate is fixed to the belt conveyor by bolts, and the connection between the connecting plate and the top of the clamping member is reinforced by suture bolts.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In a metallurgical raw material precision feeding device involved in the present invention, the container will flip over when it moves to the unloading end along with the conveyor belt of the belt conveyor. At this time, the inclination sensor detects the change in angle and starts a small vibration motor, thereby facilitating the dumping of all the powder raw materials in the inner shell into the feeding hopper to avoid residual powder raw materials in the container, thereby facilitating precise feeding.

[0016] 2. The invention relates to a precise feeding device for metallurgical raw materials, which can realize the continuous feeding process of several containers through a belt conveyor, thereby improving the feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the charging hopper of the present invention; Figure 3 It is a schematic diagram of the exploded structure of the container of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the charging piece of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the support frame of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the sealing plate of the present invention; Figure 7 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1-belt conveyor; 1.1-clip parts; 2- hopper; 2.1- chute; 2.2- end plate; 2.2.1- through slot; 2.3- vertical cylinder; 3-container; 3.1-outer shell; 3.1.1-connecting plate; 3.2-inner shell; 3.2.1-support ring; 3.3-spring 1; 3.4-small vibration motor; 3.5-battery board; 3.6-control circuit board; 3.7-tilt sensor; 4- loading piece; 4.1- supporting plate; 4.1.1- slot hole; 4.1.2- notch; 4.2- vertical plate 1; 4.3- loading hopper; 5-support frame; 5.1-edge strip; 5.2-vertical board 2; 6-sealing plate assembly; 6.1-rubber plate; 6.2-suspension bolt; 6.3-spring 2; 6.4-compression nut; 7- Photoelectric sensor; 8- Legs. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-7The present invention provides a technical solution, a device for accurately feeding metallurgical raw materials, wherein a plurality of legs 8 are fixed at the bottom of the frame of the belt conveyor 1, and the legs 8 are used to increase the overall height of the belt conveyor 1. Among them, the two sides of the middle of the belt surface of the belt conveyor 1 are provided with a pair of clamping parts 1.1, and the bottom of the clamping parts 1.1 is a bendable plate and the bendable plate is fixed to the belt conveyor 1 with bolts, so that the clamping parts 1.1 can adapt to the arc bending of the conveyor belt when passing through the unloading end and the feeding end roller.

[0021] The feeding hopper 2 comprises a chute 2.1 with two sides of the top fixed on the supporting legs 8 below the discharge end of the belt conveyor 1, an end plate 2.2 fixed at both ends of the inner cavity of the chute 2.1, and a vertical cylinder 2.3 with the top sleeved on the middle part of the bottom end of the chute 2.1. A through groove 2.2.1 is provided at the top of the middle part of the end plate 2.2 at the top of the chute 2.1.

[0022] The container 3 includes a plurality of outer shells 3.1 connected to the belt surface of the belt conveyor 1 at equal distances at the bottom, an inner shell 3.2 sleeved in the inner cavity of the outer shell 3.1, a spring 3.3 connected between the bottom surface of the inner shell 3.2 and the bottom surface of the inner cavity of the outer shell 3.1, a small vibration motor 3.4 fixed to the bottom surface of the inner shell 3.2, a battery panel 3.5 and a control circuit board 3.6 fixed to the bottom surface of the inner cavity of the outer shell 3.1, and an inclination sensor 3.7 installed on the control circuit board 3.6. The outer edge of the top of the inner shell 3.2 is provided with a support ring 3.2.1 supported on the top of the outer shell 3.1. In order to reduce the existence of internal internal angles, the cross-sections of the outer shell 3.1 and the inner shell 3.2 are oblong. The bottom ends of the outer walls on both sides of the outer shell 3.1 are fixed with connecting plates 3.1.1 that are fixedly connected and matched with the clamping member 1.1, and the connecting plates 3.1.1 are reinforced with the top of the clamping member 1.1 using suture bolts.

[0023] The loading member 4 comprises a support plate 4.1 arranged above the feeding end of the belt conveyor 1 and a vertical plate 4.2 whose top end is fixed to the four corners of the support plate 4.1 and whose bottom end is fixed to the frame of the belt conveyor 1. A slot hole 4.1.1 is arranged in the middle of the support plate 4.1, and the bottom end of the loading hopper 4.3 is fixedly connected to the slot hole 4.1.1. A slot 4.1.2 is arranged at the inner side of the slot hole 4.1.1 of the support plate 4.1.

[0024] The support frame 5 includes a side strip 5.1 with one end butted to both sides of the slot 4.1.2 and a vertical plate 2 5.2 with the top fixed to the side strip 5.1 and the bottom fixed to the frame of the belt conveyor 1. A sealing plate assembly 6 is elastically connected below the side strip 5.1 and both sides of the slot 4.1.2, and the bottom surface of the sealing plate assembly 6 fits with the top of the corresponding inner shell 3.2. The sealing plate assembly 6 includes a rubber plate 6.1, a suspension bolt 6.2 that is vertically slidably mounted on the edges of both sides of the rubber plate 6.1, a spring 2 6.3 that is mounted on the top of the suspension bolt 6.2, and a clamping nut 6.4 that is threadedly mounted on the top of the suspension bolt 6.2. The spring 2 6.3 is supported between the top surface of the rubber plate 6.1 and the side strip 5.1 and the bottom surface of the support plate 4.1, and the clamping nut 6.4 is pressed against the top surface of the side strip 5.1 and the top surfaces of both sides of the slot 4.1.2.

[0025] A photoelectric sensor 7 is fixed on the vertical plate 4.2 at a position corresponding to the slot 4.1.1, and the output end of the photoelectric sensor 7 is associated with the control switch electrical signal of the belt conveyor 1.

[0026] In summary, the belt conveyor 1 carries the container 3 and periodically passes through the loading member 4 and the feeding hopper 2. When the container 3 passes directly below the slot 4.1.1, it is detected by the photoelectric sensor 7, and then a pause signal is sent to the belt conveyor 1; at this time, the weighing device pours a fixed amount of powder raw material into the loading hopper 4.3, and the powder raw material is loaded into the inner shell 3.2 through the slot 4.1.1; due to the action of the spring 6.3, the bottom surface of the lower rubber plate 6.1 is attached to the top opening of the inner shell 3.2, thereby avoiding the phenomenon of powder raw material spillage during the conveying process. When the container 3 is conveyed to the unloading end, i.e., above the chute 2.1, by the belt surface of the belt conveyor 1, the container 3 turns over, and the inclination sensor 3.7 detects the change in inclination, thereby starting the small vibration motor 3.4 to ensure that all the raw material powder in the inner shell 3.2 is poured into the chute 2.1. The end of the unloaded container 3 passes through the groove 2.2.1, and the raw materials poured into the chute 2.1 will slide downward and be added to the furnace from the vertical cylinder 2.3 to complete an efficient and accurate feeding process.

[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. A precise feeding device for metallurgical raw materials, comprising a feeding hopper (2) and a container (3), characterized in that: Also includes: A belt conveyor (1), wherein the hopper (2) is installed at the lower side of the discharge end of the belt conveyor (1); A loading member (4), the loading member (4) comprising a loading hopper (4.3) arranged above a feeding end of the belt conveyor (1); A support leg (8), the support leg (8) being used to increase the height of the belt conveyor (1); The container (3) comprises a plurality of outer shells (3.1) connected to the belt surface of the belt conveyor (1) at equal distances from the bottom, an inner shell (3.2) sleeved in the inner cavity of the outer shell (3.1), a spring (3.3) connected between the bottom surface of the inner shell (3.2) and the bottom surface of the inner cavity of the outer shell (3.1), a small vibration motor (3.4) fixed to the bottom surface of the inner shell (3.2), a battery panel (3.5) and a control circuit board (3.6) fixed to the bottom surface of the inner cavity of the outer shell (3.1), and an inclination sensor (3.7) mounted on the control circuit board (3.6).

2. A metallurgical raw material precision feeding device according to claim 1, characterized in that: The belt conveyor (1) is provided with a pair of clamping pieces (1.1) on both sides of the middle of the belt surface, and the bottom ends of the outer walls on both sides of the outer shell (3.1) are fixed with connecting plates (3.1.1) that are fixedly clamped and matched with the clamping pieces (1.1).

3. The device for accurately feeding metallurgical raw materials according to claim 1, characterized in that: The feeding hopper (2) comprises a chute (2.1) with two sides of the top fixed to the supporting legs (8) below the discharge end of the belt conveyor (1), an end plate (2.2) fixed to both ends of the inner cavity of the chute (2.1), and a vertical cylinder (2.3) sleeved at the top end of the middle part of the bottom end of the chute (2.1), and a through groove (2.2.1) is provided at the top end of the middle part of the end plate (2.2) at the top end of the chute (2.1).

4. The device for accurately feeding metallurgical raw materials according to claim 1, characterized in that: The loading member (4) further comprises a support plate (4.1) disposed above the feeding end of the belt conveyor (1) and a vertical plate (4.2) having its top end fixed to the four corners of the support plate (4.1) and its bottom end fixed to the frame of the belt conveyor (1). The support plate (4.1) is provided with a slotted hole ( 4.1.1), the bottom end of the charging hopper (4.3) is fixedly connected to the slot (4.1.1).

5. A metallurgical raw material precise feeding device according to claim 4, characterized in that: It also includes a support frame (5), wherein the support plate (4.1) is provided with a slot (4.1.2) at a position inside the slot hole (4.1.1), the support frame (5) includes a side strip (5.1) with one end butted against both sides of the slot (4.1.2) and a second vertical plate (5.2) with the top end fixed to the side strip (5.1) and the bottom end fixed to the frame of the belt conveyor (1), and a sealing plate assembly (6) is elastically connected below the side strip (5.1) and both sides of the slot (4.1.2), and the bottom surface of the sealing plate assembly (6) is in contact with the top of the corresponding inner shell (3.2).

6. A metallurgical raw material precision feeding device according to claim 5, characterized in that: The sealing plate assembly (6) comprises a rubber plate (6.1), a suspension bolt (6.2) which is vertically slidably mounted on the top of the rubber plate (6.1) at the edges of both sides, a second spring (6.3) mounted on the top of the suspension bolt (6.2), and a clamping nut (6.4) threadedly mounted on the top of the suspension bolt (6.2), wherein the second spring (6.3) is supported between the top surface of the rubber plate (6.1) and the bottom surface of the side strip (5.1) and the support plate (4.1), and the clamping nut (6.4) is pressed against the top surface of the side strip (5.1) and the top surfaces on both sides of the notch (4.1.2).

7. The device for accurately feeding metallurgical raw materials according to claim 1, characterized in that: A support ring (3.2.1) is provided on the outer edge of the top end of the inner shell (3.2) and is supported on the top end of the outer shell (3.1).

8. The device for accurately feeding metallurgical raw materials according to claim 4, characterized in that: A photoelectric sensor (7) is fixed on the vertical plate 1 (4.2) at a position corresponding to the slot hole (4.1.1), and an output end of the photoelectric sensor (7) is associated with a control switch electrical signal of the belt conveyor (1).

9. The device for accurately feeding metallurgical raw materials according to claim 1, characterized in that: The cross-sections of the outer shell (3.1) and the inner shell (3.2) are oblong.

10. The metallurgical raw material precision feeding device according to claim 2, characterized in that: The bottom of the clamping member (1.1) is a bendable plate, and the bendable plate is fixed to the belt conveyor (1) using bolts, and the connection between the connecting plate (3.1.1) and the top of the clamping member (1.1) is reinforced using suture bolts.

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