Automatic feed control for mechanical mills

Abstract

The utility model discloses an automatic feed control device of mechanical mill relates to mechanical mill equipment technical field, including base, the upper surface symmetry of base is provided with two support frames, and the height -adjusting frame of adjustable height is arranged between two support frames, the surface fixed setting of height -adjusting frame has feeding mechanism, the feeding mechanism includes feeding cylinder, the bottom fixed connection of feeding cylinder has anti -block pipe, and the inner wall sliding of anti -block pipe is provided with the discharge control shell, the utility model discloses setting feeding mechanism, realizes the dynamic regulation of feed quantity, and electric telescopic link can drive the sliding of the discharge control shell along the inner wall of anti -block pipe up and down to the frame of square, changes the coincident area of discharge control shell surface discharge hole and anti -block pipe to realize the size of control discharge hole, and the flexible adjustment feed rate through the telescopic quantity accurate control electric telescopic link, avoids the mechanical mill overload, grinds insufficiently because of feeding too much, or because of feeding too little causes equipment idling and energy -wasting.

Description

Technical Field

[0001] This utility model relates to the field of mechanical grinding equipment technology, and in particular to an automatic feeding control device for a mechanical grinding mill. Background Technology

[0002] Mechanical mills, as core equipment for material grinding and processing, are widely used in many industries such as mining, building materials, and chemicals. Their grinding efficiency and feeding stability are directly related to overall production efficiency and processing quality.

[0003] However, the feeding control of traditional mechanical mills largely relies on manual operation, which is prone to instability in the feed rate due to human judgment errors. This results in insufficient grinding of materials, affecting the quality of the finished product, and also causes the mechanical mill to run idle, increasing energy waste. Secondly, because the materials to be ground often have characteristics such as particle agglomeration and high viscosity, they are prone to accumulation and blockage in the feed channel, requiring frequent shutdowns for manual unblocking and interrupting the production process.

[0004] To address this, we designed an automatic feeding control device for a mechanical mill. Utility Model Content

[0005] This utility model discloses an automatic feeding control device for a mechanical mill, which aims to solve the technical problems of mechanical mill equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic feeding control device for a mechanical mill includes a base, two support frames symmetrically arranged on the upper surface of the base, an adjustable frame with adjustable height arranged between the two support frames, and a feeding mechanism fixedly arranged on the surface of the adjustable frame; The feeding mechanism includes a feeding cylinder, an anti-blocking pipe is fixedly connected to the bottom of the feeding cylinder, a discharge control shell is slidably arranged on the inner wall of the anti-blocking pipe, a plurality of discharge holes are opened on the surface of the discharge control shell, the plurality of discharge holes are evenly distributed on the cylindrical surface of the discharge control shell, a rotating shaft is rotatably connected to the center of the inner bottom wall of the discharge control shell, and a plurality of rotating movable rods are fixedly connected to the surface of the rotating shaft.

[0007] In a preferred embodiment, mounting blocks symmetrically positioned are fixedly connected to both the front and rear surfaces of the feed cylinder, an electric telescopic rod is fixedly installed on the lower surface of the mounting blocks, a U-shaped frame is fixedly connected to the top of the discharge control housing, extension plates are fixedly connected to both the front and rear surfaces of the U-shaped frame, and the telescopic end of the electric telescopic rod is fixedly connected to the lower surface of the extension plate.

[0008] In a preferred embodiment, a drive motor is fixedly installed at the center of the upper surface of the U-shaped frame. The drive motor is located directly above the rotating shaft, and the rotating shaft of the drive motor is fixedly connected to the top end of the rotating shaft.

[0009] In a preferred embodiment, a tapered discharge pipe is fixedly connected to the bottom end of the anti-blocking pipe, the position of the tapered discharge pipe corresponds to the discharge control shell, and the discharge control shell is located inside the tapered discharge pipe.

[0010] In a preferred embodiment, two guide slide rods are fixedly connected to the upper surface of the feed cylinder, and a guide through hole matching the guide slide rod is provided on the surface of the extension plate. The surfaces of the extension plate and the guide slide rods are slidably connected.

[0011] In a preferred embodiment, the support frame has a lifting adjustment groove inside, an adjustment motor is fixedly installed on the inner bottom wall of the lifting adjustment groove, a lifting screw is fixedly connected to the output end of the adjustment motor, and a lifting block is threadedly connected to the surface of the lifting screw.

[0012] In a preferred embodiment, the end of the adjusting frame away from the feed cylinder extends into the interior of the lifting adjusting groove and is fixedly connected to the side of the lifting block. The side of the support frame is provided with a strip-shaped limiting hole, and the adjusting frame is slidably connected to the inner wall of the strip-shaped limiting hole.

[0013] As can be seen from the above, the automatic feeding control device for a mechanical mill provided by this utility model has the following technical effects.

[0014] Firstly, by setting up a feeding mechanism, the feeding rate can be dynamically adjusted. The electric telescopic rod can drive the U-shaped frame and the discharge control shell to slide up and down along the inner wall of the anti-clogging pipe, changing the overlapping area between the discharge hole on the surface of the discharge control shell and the anti-clogging pipe, thereby controlling the size of the discharge hole. By precisely controlling the extension and retraction of the electric telescopic rod, the feeding rate can be flexibly adjusted, avoiding overloading of the mechanical mill and insufficient grinding due to excessive feeding, or idling and energy waste due to insufficient feeding. The rotating shaft and rotating rod inside the discharge control shell rotate continuously under the drive of the drive motor. The rotating rod can stir and disperse the material falling from the feed cylinder into the discharge control shell, preventing the material particles from agglomerating and clogging; at the same time, the rotational force can also assist the material to move towards the discharge hole, pushing the material smoothly into the conical discharge pipe, reducing clogging problems.

[0015] Secondly, by using a tapered feed tube with a contraction structure at the bottom of the anti-blocking tube, the material can be gathered and guided, preventing the material from being dispersed and accumulated at the outlet of the anti-blocking tube, further reducing the probability of blockage, ensuring the continuous and uninterrupted feeding process, and improving the overall operating efficiency of the mechanical mill. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of an automatic feeding control device for a mechanical mill proposed in this utility model.

[0017] Figure 2 This is a partial orthogonal cross-sectional view of the support frame of the automatic feeding control device for a mechanical mill proposed in this utility model.

[0018] Figure 3 This is a front section diagram of the feeding mechanism of an automatic feeding control device for a mechanical mill proposed in this utility model.

[0019] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.

[0020] In the attached diagram: 1. Base; 2. Support frame; 3. Adjusting frame; 4. Feeding mechanism; 5. Lifting adjustment groove; 6. Adjusting motor; 7. Lifting screw; 8. Lifting block; 401. Feed cylinder; 402. Anti-clogging pipe; 403. Discharge control housing; 404. Discharge hole; 405. Rotating shaft; 406. Rotating movable rod; 407. U-shaped frame; 408. Extension plate; 409. Drive motor; 410. Conical discharge pipe; 411. Guide slide rod; 412. Electric telescopic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 An automatic feeding control device for a mechanical mill includes a base 1. Two support frames 2 are fixedly installed on the upper surface of the base 1. An adjustable height adjustment frame 3 is installed between the two support frames 2. The surface of the adjustment frame 3 is fixedly connected to the feeding mechanism 4. The feeding mechanism 4 is suspended between the two support frames 2 through the adjustment frame 3 and can rise and fall synchronously with the height of the adjustment frame 3 to achieve adaptation to the feed inlets of mechanical mills of different heights.

[0023] The feeding mechanism 4 includes a feeding cylinder 401. The top of the feeding mechanism 4 is the feeding cylinder 401, which has a hollow cylindrical structure and is used to temporarily store the material to be conveyed to the mechanical mill. The bottom of the feeding cylinder 401 is fixedly connected to an anti-blocking pipe 402. The anti-blocking pipe 402 is also a hollow structure and communicates with the internal cavity of the feeding cylinder 401, allowing the material to fall directly from the feeding cylinder 401 into the anti-blocking pipe 402.

[0024] A discharge control shell 403 is slidably disposed on the inner wall of the anti-blocking pipe 402. The shape of the discharge control shell 403 is adapted to the inner wall of the anti-blocking pipe 402 and can slide up and down along the inner wall of the anti-blocking pipe 402. Several discharge holes 404 are opened on the cylindrical surface of the discharge control shell 403. All discharge holes 404 are evenly distributed on the cylindrical surface of the discharge control shell 403, and the internal cavity of the discharge control shell 403 is connected to the internal cavity of the anti-blocking pipe 402. Material can enter the discharge control shell 403 from the anti-blocking pipe 402 and be discharged through the discharge holes 404.

[0025] At the center of the inner bottom wall of the discharge control housing 403, a rotating shaft 405 is installed via a rotating connection structure. Several rotating movable rods 406 are fixedly connected to the surface of the rotating shaft 405. All rotating movable rods 406 are radially distributed around the rotating shaft 405 and are all located in the internal cavity of the discharge control housing 403. When the rotating shaft 405 rotates, it can drive the rotating movable rods 406 to rotate synchronously.

[0026] The top of the discharge control housing 403 is fixedly connected to the U-shaped frame 407. Extension plates 408 are fixedly connected to the front and rear surfaces of the U-shaped frame 407, respectively. The two extension plates 408 are symmetrically distributed and extend away from the center of the U-shaped frame 407. A drive motor 409 is fixedly installed at the center of the upper surface of the U-shaped frame 407. The installation position of the drive motor 409 corresponds to the position of the rotating shaft 405 and is located directly above the rotating shaft 405. The rotating shaft of the drive motor 409 is fixedly connected to the top of the rotating shaft 405. After the drive motor 409 is started, it drives the rotating shaft 405 to rotate.

[0027] Mounting blocks are fixedly connected to the front and rear surfaces of the feed cylinder 401, respectively. The positions of the two mounting blocks are symmetrical and both are located near the top of the feed cylinder 401. An electric telescopic rod 412 is fixedly installed on the lower surface of each mounting block. The telescopic end of the electric telescopic rod 412 is fixedly connected to the lower surface of the extension plate 408. The two electric telescopic rods 412 are respectively connected to the two extension plates 408. Through the telescopic movement of the electric telescopic rods 412, the extension plate 408, the U-shaped frame 407 and the discharge control shell 403 can be driven to slide up and down synchronously along the inner wall of the anti-blocking pipe 402.

[0028] Two guide rods 411 are fixedly connected to the upper surface of the feed cylinder 401. The two guide rods 411 are vertical and their positions correspond to those of the extension plate 408. The surface of the extension plate 408 has guide holes that match the guide rods 411. The guide rods 411 pass through the guide holes, and the extension plate 408 can slide along the surface of the guide rods 411, providing guidance for the up and down movement of the extension plate 408 and preventing the extension plate 408 from deviating when it drives the discharge control housing 403 to slide.

[0029] The bottom end of the anti-blocking pipe 402 is fixedly connected to the conical feeding pipe 410. The conical feeding pipe 410 has a conical structure and communicates with the internal cavity of the anti-blocking pipe 402. The position of the conical feeding pipe 410 corresponds to the discharge control shell 403. The bottom end of the discharge control shell 403 extends into the interior of the conical feeding pipe 410. The material discharged from the discharge hole 404 of the discharge control shell 403 can fall directly into the interior of the conical feeding pipe 410 and be conveyed to the feed port of the mechanical mill through the bottom opening of the conical feeding pipe 410.

[0030] Each support frame 2 has a lifting adjustment groove 5 inside. The lifting adjustment groove 5 is a vertically elongated groove that extends along the height direction of the support frame 2. An adjustment motor 6 is fixedly installed on the inner bottom wall of the lifting adjustment groove 5. The output end of the adjustment motor 6 faces upward and is fixedly connected to the lifting screw 7.

[0031] The lifting screw 7 is set along the height direction of the lifting adjustment groove 5, and a lifting block 8 is threadedly connected to its surface. The shape of the lifting block 8 is adapted to the inner wall of the lifting adjustment groove 5, and it can slide up and down along the inner wall of the lifting adjustment groove 5. After the adjustment motor 6 is started, it drives the lifting screw 7 to rotate. The lifting screw 7 drives the lifting block 8 to move up and down along the lifting adjustment groove 5 through the threaded transmission.

[0032] The adjusting frame 3 extends from both ends away from the feed cylinder 401 into the lifting adjusting grooves 5 of the two support frames 2, and is fixedly connected to the side of the lifting block 8 in the corresponding support frame 2. Each support frame 2 has a strip-shaped limiting hole on its side, which extends along the height direction of the support frame 2 and communicates with the inside of the lifting adjusting groove 5. The adjusting frame 3 passes through the strip-shaped limiting hole and is slidably connected to the inner wall of the strip-shaped limiting hole.

[0033] Working principle: When using the automatic feeding control device for this mechanical mill, the height of the feeding mechanism 4 should be adjusted according to the feed inlet height of the mechanical mill to be adapted. Then, the adjustment motor 6 in the two support frames 2 is started. The adjustment motor 6 drives the lifting screw 7 to rotate. The lifting screw 7 drives the lifting block 8 to move up and down along the lifting adjustment groove 5 through the thread transmission. The lifting block 8 drives the adjustment frame 3 to slide along the strip-shaped limit hole, thereby making the feeding mechanism 4, which is fixedly connected to the adjustment frame 3, rise and fall synchronously until the bottom end of the conical feed tube 410 is aligned with the feed inlet of the mechanical mill.

[0034] The material to be ground is poured into the feed cylinder 401, and falls along the feed cylinder 401 into the anti-blocking pipe 402, and then into the discharge control shell 403 located on the inner wall of the anti-blocking pipe 402. At this time, the drive motor 409 and the electric telescopic rod 412 are started. The drive motor 409 drives the rotating shaft 405 to rotate, and the rotating shaft 405 drives the rotating movable rod 406 to rotate inside the discharge control shell 403, stirring and dispersing the material to prevent it from agglomerating and clogging. At the same time, the rotational force pushes the material towards the discharge hole 404. The electric telescopic rod 412 drives the extension plate 408 to slide along the guide slide rod 411. The extension plate 408 drives the U-shaped frame 407 and the discharge control shell 403 to move up and down along the inner wall of the anti-blocking pipe 402, changing the overlapping area of ​​the discharge hole 404 and the anti-blocking pipe 402, thereby achieving precise control of the feed amount.

[0035] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An automatic feeding control device for a mechanical mill, comprising a base (1), characterized in that, Two support frames (2) are symmetrically arranged on the upper surface of the base (1), and an adjustable height adjustment frame (3) is arranged between the two support frames (2). A feeding mechanism (4) is fixedly arranged on the surface of the adjustment frame (3). The feeding mechanism (4) includes a feeding cylinder (401), and an anti-blocking pipe (402) is fixedly connected to the bottom of the feeding cylinder (401). A discharge control shell (403) is slidably provided on the inner wall of the anti-blocking pipe (402). A plurality of discharge holes (404) are opened on the surface of the discharge control shell (403). The plurality of discharge holes (404) are evenly distributed on the cylindrical surface of the discharge control shell (403). A rotating shaft (405) is rotatably connected to the center of the inner bottom wall of the discharge control shell (403). A plurality of rotating movable rods (406) are fixedly connected to the surface of the rotating shaft (405).

2. The automatic feeding control device for a mechanical mill according to claim 1, characterized in that, The front and rear surfaces of the feed cylinder (401) are fixedly connected with symmetrical mounting blocks. An electric telescopic rod (412) is fixedly installed on the lower surface of the mounting blocks. A U-shaped frame (407) is fixedly connected to the top of the discharge control shell (403). An extension plate (408) is fixedly connected to the front and rear surfaces of the U-shaped frame (407). The telescopic end of the electric telescopic rod (412) is fixedly connected to the lower surface of the extension plate (408).

3. The automatic feeding control device for a mechanical mill according to claim 2, characterized in that, A drive motor (409) is fixedly installed at the center of the upper surface of the U-shaped frame (407). The drive motor (409) is located directly above the rotating shaft (405), and the rotating shaft of the drive motor (409) is fixedly connected to the top end of the rotating shaft (405).

4. The automatic feeding control device for a mechanical mill according to claim 3, characterized in that, The bottom end of the anti-blocking pipe (402) is fixedly connected to a tapered feeding pipe (410). The position of the tapered feeding pipe (410) corresponds to the discharge control shell (403), and the discharge control shell (403) is located inside the tapered feeding pipe (410).

5. The automatic feeding control device for a mechanical mill according to claim 4, characterized in that, Two guide slide rods (411) are fixedly connected to the upper surface of the feed cylinder (401). The surface of the extension plate (408) is provided with guide through holes that match the guide slide rods (411). The surfaces of the extension plate (408) and the guide slide rods (411) are slidably connected.

6. The automatic feeding control device for a mechanical mill according to claim 5, characterized in that, The support frame (2) has a lifting adjustment groove (5) inside. An adjustment motor (6) is fixedly installed on the inner bottom wall of the lifting adjustment groove (5). A lifting screw (7) is fixedly connected to the output end of the adjustment motor (6). A lifting block (8) is threadedly connected to the surface of the lifting screw (7).

7. The automatic feeding control device for a mechanical mill according to claim 6, characterized in that, The end of the adjusting frame (3) away from the feed cylinder (401) extends into the interior of the lifting adjusting groove (5) and is fixedly connected to the side of the lifting block (8). The side of the support frame (2) is provided with a strip-shaped limiting hole, and the adjusting frame (3) is slidably connected to the inner wall of the strip-shaped limiting hole.

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