Feeding device for ball mill

Abstract

The utility model discloses a feeding device for a ball mill, which comprises a material storage fixing cylinder fixedly arranged on the upper side of a grinding roller of the corresponding ball mill, the material storage fixing cylinder is provided with a material storage area, and the grinding roller is provided with a feeding hole corresponding to the material storage area; the discharging mechanism comprises discharging pipes connected to the bottom ends of the storage areas, the upper ends of the discharging pipes are fixedly connected with electromagnetic valves respectively, and the lower ends of the discharging pipes are downwards connected with annular electromagnets through telescopic elastic pipe fittings respectively; the bottom side of each feeding hole is provided with a plug body in a lifting mode, the periphery of each plug body is fixedly connected with a plurality of guide shafts upwards, the guide shafts and the grinding roller are fixed through corresponding spiral springs, and the plug bodies are fixedly pressed in the corresponding feeding holes respectively under the elastic force action of the spiral springs. According to the utility model, the classified and screened materials can be automatically fed in place as required, so that the materials in different particle size ranges can be synchronously and reasonably ground.

Description

TECHNICAL FIELD

[0001] The utility model relates to the auxiliary mechanism of hard alloy powder processing is with ball grinding mill, specifically is a kind of ball mill feeding device, it can be as required to the material of pretreatment into ball mill's grinding drum, to realize the reasonable grinding operation of synchronous to different particle size range material. BACKGROUND

[0002] When hard alloy powder is processed, it needs to be ground by corresponding ball grinding mill. After being ground by ball grinding mill, the uniformity and density of the hard alloy powder material can be obviously improved, and the air holes, inclusions and defects of the hard alloy powder material can be reduced, so as to improve the density and strength of the material.

[0003] The existing hard alloy powder processing ball grinding mill mostly uses conventional ball grinding mill, which mostly includes a fixed grinding drum and grinding balls arranged in the grinding drum. The grinding drum is driven to rotate at a moderate speed by a rotating drive mechanism to drive the grinding balls arranged in the grinding drum to perform ball milling operation on the material. Since the particle size of the hard alloy material before grinding is different, the existing method is to directly feed all batches of hard alloy material into the ball mill grinding drum, and then continuously grind. As the grinding process advances, the material meeting the fineness is filtered and discharged. Directly feeding hard alloy materials with large particle size difference into the grinding drum for grinding operation will adversely affect the grinding effect and efficiency. To improve the grinding effect and efficiency, some manufacturers have begun to try to classify the hard alloy material to be ground by a storage fixed cylinder. Since the feeding position is fixed and single, only the material with large and small particle size can be fed from the storage fixed cylinder to the feeding end of the grinding drum of the ball mill according to the advancement of the grinding process. Such feeding method is extremely complex in overall operation process and does not meet the needs of modern production and processing.

[0004] Therefore, the purpose of the present utility model is to design a ball mill feeding device that can automatically feed the classified and screened material as needed to achieve synchronous and reasonable grinding operation of materials with different particle size ranges. SUMMARY

[0005] In view of the technical problems existing in the prior art, the utility model provides a ball mill feeding device that can effectively solve the technical problems existing in the prior art.

[0006] The technical scheme of the utility model is as follows:

[0007] A ball mill feeding device comprises

[0008] The storage fixed cylinder is fixedly arranged on the upper side of a grinding drum of a corresponding ball mill, and at least one storage area is arranged on the storage fixed cylinder; and a feeding hole corresponding to the storage area is arranged on the grinding drum.

[0009] The feeding mechanism comprises a feeding pipe connected to the bottom end of each storage area, and the upper end of the feeding pipe is fixedly connected with a corresponding electromagnetic valve. The bottom side of the feeding hole is respectively provided with a corresponding plug body, and the periphery of the plug body is fixedly connected with a plurality of guide shafts penetratingly arranged on the grinding drum.

[0010] The outer end of the guide shaft is fixedly connected with a corresponding pressing plate, and the spiral spring is fixedly connected between the pressing plate and the grinding drum.

[0011] The grinding drum is respectively provided with a corresponding counterbore corresponding to the guide shaft, and the spiral spring is fixedly connected between the pressing plate and the counterbore of the grinding drum.

[0012] The storage fixed cylinder and the grinding drum are respectively fixedly arranged on corresponding supports, and the support is fixedly arranged with a photoelectric sensor for detecting the position of the grinding drum.

[0013] The storage fixed cylinder is fixedly connected with a corresponding feeding hopper.

[0014] The advantages of the present application are as follows:

[0015] 1) The discharging mechanism of the utility model contains the discharging pipe connected to the bottom end part of each storage area, the upper end part of the discharging pipe is fixed with the electromagnetic valve respectively, the lower end part of the discharging pipe is connected with the corresponding annular electromagnet downward through the telescopic elastic pipe piece respectively. When discharging, the driving mechanism of the grinding roller stops running after the grinding roller rotates to the label detected by the photoelectric sensor;Then, the annular electromagnet is electrified and adsorbed to the grinding roller, the annular electromagnet forms the downward pressure to the pressing plate and guide shaft, the coil spring is extruded, the guide shaft pushes the plug body to leave the corresponding feed hole, so that the material can be discharged to the corresponding abrasive area along the interval between the plug body and the feed hole. Thus, under the condition of not affecting the normal operation of the equipment, the material in each storage area of the storage fixed cylinder is effectively discharged to the corresponding position of the grinding roller according to the need, so as to realize the reasonable grinding operation of the material in different particle size range synchronously.

[0016] 2) The utility model discloses a grinding roller is provided with the counterbore corresponding to the guide shaft respectively, and the coil spring is fixed between the pressing plate and the counterbore of the grinding roller respectively. When the annular electromagnet forms the downward pressure to the pressing plate and other components, the coil spring can be compressed into the corresponding counterbore, so as to prevent the influence caused by the connection of the discharging pipe and the feed hole, thereby effectively ensuring the practical effect of the utility model. DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the sectional view of the utility model.

[0019] Figure 3 It is Figure 1 the A part local enlarged view of

[0020] Figure 4 It is Figure 2 the B part local enlarged view of

[0021] In the drawings: storage fixed cylinder 1, storage area 101, grinding roller 2, feed hole 201, discharging mechanism 3, discharging pipe 301, electromagnetic valve 302, telescopic elastic pipe piece 303, annular electromagnet 304, plug body 4, guide shaft 5, coil spring 6, pressing plate 7, counterbore 8, support 9, photoelectric sensor 10, label 11, discharging hopper 12. PREFERRED EMBODIMENT

[0022] In order to facilitate the understanding of those skilled in the art, the structure of the utility model will be further described in detail in combination with the drawings:

[0023] Referring to Figures 1-4 , a ball mill feeding device, comprising

[0024] The storage fixed cylinder 1 is fixedly arranged on the upper side of the grinding cylinder 2 of the corresponding ball mill, at least one storage area 101 is arranged on the storage fixed cylinder 1, and the grinding cylinder 2 is provided with a feeding hole 201 corresponding to the storage area 101;

[0025] The feeding mechanism 3 comprises a feeding pipe 301 connected to the bottom end of each storage area 101, the upper end of the feeding pipe 301 is respectively fixedly connected with a corresponding electromagnetic valve 302, the lower end of the feeding pipe 301 is respectively connected with a corresponding annular electromagnet 304 through a telescopic elastic pipe 303, the bottom side of the feeding hole 201 is respectively provided with a corresponding plug body 4, the periphery of the plug body 4 is respectively fixedly connected with a plurality of guide shafts 5 penetratingly arranged on the grinding cylinder 2, the guide shaft 5 and the grinding cylinder 2 are fixedly connected through a corresponding coil spring 6, under the elastic force of the coil spring 6, the plug body 4 is respectively fixedly pressed in the corresponding feeding hole 201, the guide shaft 5 and the coil spring 6 are respectively made of non-magnetic metal material, and the grinding cylinder 2 is made of magnetic metal material.

[0026] The outer end of the guide shaft 5 is respectively fixedly connected with a corresponding pressing plate 7, and the coil spring 6 is fixedly connected between the pressing plate 7 and the grinding cylinder 2. The grinding cylinder 2 is respectively provided with a corresponding counterbore 8 corresponding to the guide shaft 5, and the coil spring 6 is respectively fixedly connected between the pressing plate 7 and the counterbore 8 of the grinding cylinder 2.

[0027] The storage fixed cylinder 1 and the grinding cylinder 2 are respectively fixedly arranged on corresponding supports 9, the support 9 is fixedly arranged with a photoelectric sensor 10 for detecting the position of the grinding cylinder 2, the grinding cylinder 2 is fixedly arranged with a label 11 matched with the photoelectric sensor 10, when the photoelectric sensor 10 senses the label 11, the feeding hole 201 on the grinding cylinder 2 is opposite to the discharging end of the feeding pipe 301. The storage fixed cylinder 1 is fixedly connected with a corresponding feeding hopper 12.

[0028] The utility model discloses a discharging mechanism 3 contains the bottom end part of connecting in each storage area 101's discharging pipe 301, the upper end part of discharging pipe 301 is fixed respectively with electromagnetic valve 302, the lower end part of discharging pipe 302 is connected with the corresponding annular electromagnet 304 respectively through the telescopic elastic pipe spare 303 downward. When discharging, after the grinding roller 2 rotates to the label 11 that photoelectric sensor 10 detects, the drive mechanism of grinding roller 2 stops operation, then, annular electromagnet 304 power adsorption connects to the grinding roller 2, annular electromagnet 304 forms the down pressure to pressure plate 7, guide shaft 5, and helical spring 6 is extruded, and guide shaft 5 promotes the plug body 4 to leave the corresponding feed hole 201, and material can be discharged to the corresponding abrasive area along the interval of plug body 4 and feed hole 201. Thus, under the condition of not influencing the normal operation of equipment, effectively according to the need, the material in each storage area 101 of storage fixed cylinder 1 is fed to the corresponding position of grinding roller 2, to realize the reasonable grinding operation of synchronous to different particle size range's material.

[0029] When annular electromagnet 304 forms the down pressure to pressure plate 7 and other components, helical spring 6 can be compressed into the corresponding counterbore 8, to prevent the influence caused by the connection of discharging pipe 301 and feed hole 201, to effectively ensure the practical effect of the utility model.

[0030] The above only is the preferred implementation of the utility model, should point out, for the ordinary skill in the art of the present technology, on the premise of not departing from the principle of the utility model, can also make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A feeding device for a ball mill, characterized in that, include A storage cylinder (1) is fixedly installed on the upper side of the grinding drum (2) of the corresponding ball mill. The storage cylinder (1) is provided with at least one storage area (101), and the grinding drum (2) is provided with a feed hole (201) corresponding to the storage area (101). The feeding mechanism (3) includes a feeding pipe (301) connected to the bottom end of each storage area (101). The upper end of the feeding pipe (301) is fixed with a corresponding solenoid valve (302). The lower end of the feeding pipe (301) is connected to a corresponding annular electromagnet (304) through a telescopic elastic tube (303). The bottom side of the feed hole (201) is equipped with a corresponding plug (4) that can be raised and lowered. The periphery of the plug (4) is fixed with several guide shafts (5) that are installed through the grinding drum (2). The guide shafts (5) and the grinding drum (2) are fixed by a corresponding helical spring (6). Under the elastic force of the helical spring (6), the plugs (4) are fixedly pressed into the corresponding feed hole (201). The guide shafts (5) and the helical springs (6) are made of non-magnetic metal materials. The grinding drum (2) is made of magnetic metal materials.

2. The feeding device for a ball mill according to claim 1, characterized in that, The outer end of the guide shaft (5) is fixedly connected to a corresponding pressure plate (7), and the helical spring (6) is fixedly connected between the pressure plate (7) and the grinding roller (2).

3. The feeding device for a ball mill according to claim 2, characterized in that, The grinding roller (2) is provided with countersunk holes (8) corresponding to the guide shaft (5), and the helical spring (6) is fixed between the pressure plate (7) and the countersunk holes (8) of the grinding roller (2).

4. The feeding device for a ball mill according to claim 1, characterized in that, The storage cylinder (1) and the grinding roller (2) are respectively fixedly installed on the corresponding bracket (9). A photoelectric sensor (10) for detecting the position of the grinding roller (2) is fixedly installed on the bracket (9). A label (11) adapted to the photoelectric sensor (10) is fixedly installed on the grinding roller (2). When the photoelectric sensor (10) senses the label (11), the feed hole (201) on the grinding roller (2) is directly opposite the discharge end of the feed pipe (301).

5. A feeding device for a ball mill according to claim 1, characterized in that, A corresponding feeding hopper (12) is fixedly connected to the storage cylinder (1).

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