An automatic feeding device suitable for stirring ball mill

Abstract

The utility model provides an automatic feeding device suitable for a stirring ball mill, comprising a main frame, a material supply part, a liquid supply part and a control part. The main frame comprises a base and a feeding carrier plate, the material supply part comprises a powder feeding mechanism, a powder transfer feeding mechanism and a powder quantitative mechanism, and the liquid supply part comprises a liquid replenishing mechanism, a liquid transfer mechanism and a liquid quantitative mechanism. Mechanical feeding can be realized, which greatly reduces labor intensity and significantly improves feeding efficiency; the feeding accuracy is precisely controllable, and compared with manual feeding of raw materials, it takes less time and the material after ball milling has higher accuracy; the feeding process is mechanically adjusted throughout, which significantly reduces the work content of operators and reduces the difficulty of work.

Description

Technical Field

[0001] The utility model relates to the field of ball mills for processing silicon carbide, in particular to an automatic feeding device suitable for a stirring ball mill. Background Art

[0002] Silicon carbide is an important high-temperature material, widely used in high-temperature ceramics, electronic components, optical glass and other fields. Its production process mainly includes raw material processing, drying, sintering and crushing. The raw materials are mainly silicon dioxide and graphite. In the production process, these two raw materials need to be mixed in a certain proportion, and appropriate additives (such as aluminum oxide, silicon nitride, etc.) need to be added to improve product performance. After mixing, it is processed in a stirring ball mill to make its particle size uniform.

[0003] A stirring ball mill is an important equipment in the manufacture of silicon carbide. For example, Chinese patent CN211246785U discloses a lifting vertical stirring ball mill, which includes a frame and a stirring barrel. The stirring barrel is slidably connected to the inner wall of the frame through a plurality of conduction blocks. A support plate is provided on the top of the frame. The top of the support plate is fixedly connected to a reduction motor and a transmission wheel respectively. The reduction motor and the transmission wheel are connected through a transmission belt. A rotating rod is fixedly connected to the bottom of the transmission wheel. The bottom of the rotating rod passes through the top of the stirring barrel and extends inward. A plurality of stirring rods are fixedly connected to one end of the rotating rod located in the stirring barrel. A feed pipe is fixedly inserted on the outer wall of the stirring barrel, and a discharge pipe is fixedly inserted on the inner bottom of the stirring barrel.

[0004] For example, the stirring ball mill mentioned above needs to manually supply carbon source, silicon source, additives, etc. during use, which has the following defects:

[0005] First, the labor intensity is high and the loading efficiency is low.

[0006] Secondly, the feeding accuracy is low, which requires more ball milling time and more feeding frequency, resulting in a longer ball milling time.

[0007] Third, staff are required to monitor and record the loading status for a long time. Utility Model Content

[0008] The utility model provides an automatic feeding device suitable for a stirring ball mill, which can effectively solve the problems mentioned in the background technology.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] An automatic feeding device suitable for a stirring ball mill comprises a main frame, a material supply part, a liquid supply part and a control part.

[0011] Specifically, the main frame includes a base and a feeding carrier plate.

[0012] The base comprises a concave hollow container; the feeding carrier plate is arranged on the base through a support column, and a circular mounting through hole 1 and a circular mounting through hole 2 are arranged on the base.

[0013] Specifically, the material supply part includes a powder feeding mechanism, a powder transfer feeding mechanism and a powder quantitative mechanism.

[0014] More specifically, the powder transfer feeding mechanism includes a transfer bin 1, a servo motor, a conveying pipe, a conveying screw and an electric valve 1. The transfer bin 1 is arranged on the feeding carrier through a support 2, and includes a collecting bucket and a square frame 1; the conveying pipe is arranged at the lower end of the transfer bin 1; the servo motor is arranged on the feeding carrier through an "n"-shaped mounting plate and is located above the transfer bin 1; the conveying screw is arranged on the rotating shaft of the servo motor through a reduction gear box and is located in the conveying pipe; the electric valve 1 is arranged on the lower end opening of the conveying pipe.

[0015] More specifically, the powder feeding mechanism includes a "G"-shaped limit slide bar, an electric lifting device, a feeding carrier plate 1, a push rod motor 1, a movable bin structure, a roller 1, a push rod motor 2 and a connecting groove tube. The feeding carrier plate 1 is arranged on the movable end of the electric lifting device through a connecting block; the push rod motor 1 and the "G"-shaped limit slide bar are arranged on the feeding carrier plate 1; the movable bin structure is slidably connected to the feeding carrier plate 1 through a roller 1, and is slidably connected to the "G"-shaped limit slide bar through a slider, including a trapezoidal bucket and a movable bottom plate; the trapezoidal bucket pin is connected to the movable bottom plate; a limit groove is arranged on the movable bottom plate; the movable end of the push rod motor 1 is connected to the movable bin structure; the push rod motor 2 is arranged on the feeding carrier plate through an "n"-shaped mounting frame; the connecting groove tube is arranged on the movable end of the push rod motor 2, and the lower end is located above the transfer bin 1.

[0016] More specifically, the powder quantitative mechanism includes a quantitative bucket structure, a supply bucket structure, an electric valve 2, an electric valve 3, a push rod motor 3, a screw stepping motor, a correction plate, a connecting hose and a recovery hose. The quantitative bucket structure includes a square frame 2, a collection bucket 1 and a collection bucket 2; a partition plate is arranged in the square frame 2; the collection bucket 1 and the collection bucket 2 are arranged at the lower end of the square frame 2, located on both sides of the partition plate; the connecting hose is arranged on the collection bucket 1 through the electric valve 2; the recovery hose is arranged on the collection bucket 2 through the electric valve 3; the supply bucket structure is arranged in the quantitative bucket structure through a sliding rod, including a trapezoidal bucket and an electric valve 4; the push rod motor 3 and the screw stepping motor are arranged in the quantitative bucket structure; the movable end of the push rod motor 3 is connected to the supply bucket structure; the correction plate is connected to the nut seat of the screw stepping motor.

[0017] Specifically, the liquid supply part includes a liquid replenishment mechanism, a liquid transfer mechanism and a liquid quantitative mechanism. The liquid transfer mechanism includes a transfer tank and a movable cover; the transfer tank is arranged on the feed carrier, and an overflow hole is arranged on its side plate, and an overflow pipe is arranged on the overflow hole; the movable cover is detachably connected to the transfer tank. The liquid replenishment mechanism includes a rectangular liquid storage tank and a supply pump; the rectangular liquid storage tank is arranged on the base and is located below the overflow pipe; the supply pump is arranged on the rectangular liquid storage tank; one end of its water inlet pipe is located in the rectangular liquid storage tank, and one end of its water outlet pipe is located in the transfer tank. The liquid quantitative mechanism includes a quantitative box, a limit slide bar, a float, a one-way valve and an electric valve five; the quantitative box includes a rectangular hollow container one, a water inlet hole is arranged on the rear side plate, a water outlet hole is arranged on the lower bottom plate, and an air vent is arranged on the upper bottom plate; the limit slide bar is arranged on the inner wall of the upper bottom plate of the rectangular hollow container one; the one-way valve is arranged on the water inlet hole through a connecting pipe; the float ball is slidably connected to the limit slide bar, and is connected to the one-way valve by a rope chain; the electric valve five is arranged in the water outlet hole, and a connecting hose two is arranged at the lower end of the electric valve.

[0018] Specifically, the control part includes a control mechanism, a feedback mechanism and a PLC controller. The control mechanism includes a start switch, a material preparation switch, a liquid material preparation switch, a supply switch, a material recovery switch and a pause switch. The feedback mechanism includes a pressure sensor module and a distance sensor module.

[0019] Furthermore, a collecting trough is added to the feeding carrier plate.

[0020] Advantages compared to the prior art:

[0021] In the utility model, the following functions are realized through the overall arrangement of the main frame, the material supply part, the liquid supply part and the control part:

[0022] Firstly, the setting of the material supply part and the liquid supply part realizes mechanical loading, greatly reduces labor intensity, and significantly improves loading efficiency.

[0023] Secondly, the feeding accuracy is precisely controllable. Compared with manual supply of raw materials, it takes less time and the material after ball milling has higher accuracy.

[0024] Thirdly, the entire feeding process is mechanically adjusted, which significantly reduces the workload of operators and greatly reduces the difficulty of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the top view structure of the utility model;

[0026] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the utility model;

[0027] Figure 3 This is a schematic diagram of a partially enlarged cross-sectional structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the system structure of the utility model.

[0029] In the figure: 101. base, 102. feeding carrier plate, 201. transfer bin 1, 202. conveying pipe, 203. electric valve 1, 204. "G" shaped limit slide bar, 205. push rod motor 1, 206. movable bin structure, 207. push rod motor 2, 208. connecting groove pipe, 209. electric lifting device, 210. servo motor, 301. collection bucket 1, 302. recovery hose, 303. supply bucket structure, 304. push rod motor 3, 305. screw stepper motor, 306. correction plate, 401. transfer tank, 402. movable cover, 403. overflow pipe, 404. rectangular liquid storage tank, 405. supply pump, 501. quantitative box, 502. limit slide bar, 503. One-way valve, 504. Connecting hose 2. DETAILED DESCRIPTION

[0030] Example 1, refer to the attached Figure 1-4 , an automatic feeding device suitable for a stirring ball mill, comprising a main frame, a material supply part, a liquid supply part and a control part.

[0031] The main frame includes a base 101 and a feeding carrier plate 102 .

[0032] The base 101 comprises a "concave" shaped hollow container.

[0033] The material supply carrier 102 is disposed on the base 101 through pillars.

[0034] The feeding carrier plate 102 is provided with a first circular mounting through hole and a second circular mounting through hole.

[0035] The material supply part includes a powder feeding mechanism, a powder transfer feeding mechanism and a powder quantitative mechanism.

[0036] The powder transfer feeding mechanism includes a transfer bin 201, a servo motor 210, a conveying pipe 202, a conveying screw and an electric valve 203.

[0037] The transfer bin 1 201 is disposed on the feeding carrier plate 102 via support pillars 2.

[0038] The transfer warehouse 201 includes a collecting bucket and a square frame.

[0039] The delivery pipe 202 is disposed at the lower end of the transfer chamber 1 201 .

[0040] The servo motor 210 is disposed on the feeding carrier plate 102 via an “n”-shaped mounting plate and is located above the transfer bin 1 201 .

[0041] The conveying screw is disposed on the rotating shaft of the servo motor 210 through a reduction gear box and is located in the conveying tube 202 .

[0042] The electric valve 203 is disposed on the lower opening of the delivery pipe 202 .

[0043] The powder feeding mechanism includes a “G”-shaped limiting sliding bar 204 , an electric lifting device 209 , a feeding carrier plate 1 , a push rod motor 1 205 , a movable bin structure 206 , a roller 1 , a push rod motor 207 and a connecting groove pipe 208 .

[0044] The loading carrier plate 1 is arranged on the movable end of the electric lifting device 209 through a connecting block.

[0045] A push rod motor 205 and a "G"-shaped limit slide bar 204 are arranged on a loading carrier plate 1.

[0046] The movable bin structure 206 is slidably connected to the loading carrier plate 1 via a roller 1.

[0047] The movable bin structure 206 is slidably connected to the “G”-shaped limiting sliding rod 204 via a sliding block.

[0048] The movable end of the push rod motor 205 is connected to the movable bin structure 206 .

[0049] The movable bin structure 206 includes a trapezoidal bucket and a movable bottom plate.

[0050] The trapezoidal bucket pin is connected to the movable bottom plate.

[0051] A limiting groove is arranged on the movable bottom plate.

[0052] The push rod motor 207 is arranged on the feeding carrier plate 102 through an "n"-shaped mounting frame.

[0053] The connecting groove pipe 208 is arranged on the movable end of the second push rod motor 207, and the lower end is located above the transfer bin 1 201.

[0054] The powder quantitative mechanism includes a quantitative bucket structure, a supply bucket structure 303 , an electric valve 2, an electric valve 3, a push rod motor 304 , a screw stepper motor 305 , a correction plate 306 , a connecting hose and a recovery hose 302 .

[0055] The quantitative bucket structure includes a square frame 2, a collection bucket 1 301 and a collection bucket 2.

[0056] A partition plate is arranged inside the second square frame.

[0057] The first collecting bucket 301 and the second collecting bucket are arranged at the lower end of the second square frame, and are located on both sides of the partition plate.

[0058] The connecting hose is arranged on the collecting bucket 1 301 through the electric valve 2.

[0059] The recovery hose 302 is arranged on the collection bucket 2 through the electric valve 3.

[0060] The supply bucket structure 303 is arranged in the quantitative bucket structure through a sliding rod.

[0061] The push rod motor 304 and the screw stepping motor 305 are arranged in the quantitative bucket structure.

[0062] The movable end of the push rod motor 304 is connected to the supply bucket structure 303.

[0063] The correction plate 306 is connected to the nut seat of the screw stepping motor 305 .

[0064] The supply bucket structure 303 includes a trapezoidal bucket and an electric valve 4.

[0065] The liquid supply part includes a liquid replenishing mechanism, a liquid transfer mechanism and a liquid quantitative mechanism.

[0066] The liquid transfer mechanism includes a transfer tank 401 and a movable cover 402 .

[0067] The transfer pool 401 is disposed on the feed carrier plate 102 .

[0068] The movable cover 402 is detachably connected to the transfer pool 401 .

[0069] An overflow hole is arranged on the side plate of the transfer tank 401, and an overflow pipe 403 is arranged on the overflow hole.

[0070] The liquid replenishing mechanism includes a rectangular liquid storage tank 404 and a supply pump 405 .

[0071] The rectangular liquid storage tank 404 is disposed on the base 101 and is located below the overflow pipe 403 .

[0072] The supply pump 405 is disposed on the rectangular liquid storage tank 404 ; one end of the water inlet pipe of the supply pump 405 is located in the rectangular liquid storage tank 404 ; one end of the water outlet pipe of the supply pump 405 is located in the transfer tank 401 .

[0073] The liquid quantitative mechanism includes a quantitative box 501, a limit slide rod 502, a float, a one-way valve 503 and an electric valve 504.

[0074] The quantitative box 501 includes a rectangular hollow container.

[0075] A water inlet hole is arranged on the rear side plate of the rectangular hollow container.

[0076] A water outlet is arranged on the lower bottom plate of the rectangular hollow container.

[0077] The upper bottom plate of the rectangular hollow container is provided with air holes.

[0078] The limiting sliding rod 502 is arranged on the inner wall of the upper bottom plate of the rectangular hollow container 1.

[0079] The one-way valve 503 is arranged on the water inlet hole through a connecting pipe.

[0080] The float ball is slidably connected to the limit sliding rod 502 .

[0081] The float ball and the one-way valve 503 are connected by a rope chain.

[0082] The electric valve 5 is arranged in the water outlet, and the lower end of the electric valve 5 is provided with a connecting hose 2 504 .

[0083] The control part includes control mechanism, feedback mechanism and PLC controller.

[0084] The control mechanism includes a start switch, a material preparation switch, a liquid material preparation switch, a supply switch, a material recovery switch and a pause switch.

[0085] A start switch, a material preparation switch, a liquid material preparation switch, a supply switch, a material recovery switch and a pause switch are arranged on the support column.

[0086] The feedback mechanism includes a pressure sensor module and a distance sensor module.

[0087] The pressure sensor module is arranged between the transfer bin 201 and the support 2 to assist the PLC controller in detecting the quality (weight) of the material in the transfer bin 201.

[0088] The distance sensor module is disposed on the limit slide bar 502 to assist the PLC controller in detecting the level of the liquid material in the quantitative box 501 .

[0089] The screw stepper motor described in the utility model comprises a servo motor, a ball screw pair, and a nut seat; the servo motor and the ball screw pair are driven by a screw. The ball screw pair comprises a combination of a ball screw, a ball nut, a rotating steel ball, and a circulating part. The nut seat is connected to the ball nut of the ball screw pair.

[0090] Working principle and usage:

[0091] The first step is to install:

[0092] The device is installed on one side of the stirring ball mill, and the stirring ball mill is located below the feeding carrier plate 102.

[0093] Press the start switch to perform a no-load test.

[0094] Connect the connecting hose and the connecting hose 2 504 to the feed port of the stirring ball mill.

[0095] Step 2: Prepare the ingredients:

[0096] Place the corresponding carbon source and silicon source into the corresponding different movable bin structures 206; press the corresponding material preparation switch, the material preparation switch outputs a signal to the PLC controller, and the PLC controller outputs a signal to the electric lifting device 209, the push rod motor 1 205, and the push rod motor 2 207.

[0097] The electric lifting device 209 drives the movable bin structure 206 to move upward to the top of the connecting groove tube 208; the push rod motor 207 delays to drive the connecting groove tube 208 to move outward. The push rod motor 1 205 delays to drive the movable bin structure 206 to move toward the connecting groove tube 208. After the movable bottom plate is separated from the loading carrier plate 1, it opens under the action of gravity, allowing the carbon source or silicon source to enter the transfer bin 1 201 from the connecting groove tube 208; the above operation is repeated until the value of the pressure sensor module reaches the preset value.

[0098] Place the liquid material into the rectangular liquid storage tank 404, press the liquid preparation switch, the liquid preparation switch outputs a signal to the PLC controller, the PLC controller outputs a signal to the supply pump 405, the supply pump 405 starts, and the liquid material is transported to the transfer tank 401 until the liquid in the transfer tank 401 overflows, and the overflowed liquid enters the rectangular liquid storage tank 404 through the overflow pipe 403.

[0099] The liquid in the rectangular liquid storage tank 404 enters the quantitative box 501 through the one-way valve 503 until the liquid in the quantitative box 501 drives the float to move up to a preset position. The distance sensor module outputs a signal to the PLC controller, and the PLC controller closes the one-way valve 503.

[0100] The third step is supply:

[0101] When the supply switch is pressed, the PLC controller outputs signals to the servo motor 210, the electric valve 1 203, the screw stepper motor 305, and the push rod motor 304.

[0102] The electric valve 1 203 is opened; the servo motor 210 is started, driving the conveying screw to rotate a preset number of circles, so that the material enters the supply bucket structure 303; the screw stepper motor 305 drives the correction plate 306 to level the supply bucket structure 303, so that the excess material enters the collection bucket 2. The push rod motor 304 delays and drives the supply bucket structure 303 to the top of the collection bucket 1 301, and the electric valve 3, electric valve 4, and electric valve 5 are opened, so that various materials enter the stirring ball mill. In this way, it is started once every 30 seconds (adjustable), and the operator starts the stirring ball mill to complete the uniform stirring of the materials.

[0103] Step 4: Material recovery:

[0104] When the material recovery switch is pressed, the PLC controller outputs a signal to the electric valve 2, and the electric valve 2 opens, allowing the material to flow back into the movable bin structure 206.

[0105] Embodiment 2, based on embodiment 1, a collecting groove is additionally provided on the feeding carrier plate 102 .

Claims

1. An automatic feeding device suitable for a stirring ball mill, characterized in that: The invention comprises a main frame, a material supply part, a liquid supply part and a control part; the main frame comprises a base (101) and a material supply carrier plate (102); the material supply part comprises a powder material feeding mechanism, a powder material transfer feeding mechanism and a powder material quantitative mechanism; the powder material feeding mechanism comprises a "G"-shaped limit sliding rod (204), an electric lifting device (209), a material feeding carrier plate 1, a push rod motor 1 (205), a movable bin structure (206), a roller 1, a push rod motor 2 (207) and a connecting groove pipe (208); the material feeding carrier plate 1 passes through The connecting block is arranged on the movable end of the electric lifting device (209); the push rod motor (205) and the "G"-shaped limit slide bar (204) are arranged on the loading carrier plate (209); the movable bin structure (206) is slidably connected to the loading carrier plate (209) through a roller (206); the movable bin structure (206) is slidably connected to the "G"-shaped limit slide bar (204) through a slider; the movable end of the push rod motor (205) is connected to the movable bin structure (206); and the liquid supply part comprises a liquid replenishing mechanism, a liquid transfer mechanism and a liquid quantitative mechanism.

2. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The powder transfer feeding mechanism comprises a transfer bin (201), a servo motor (210), a conveying pipe (202), a conveying screw and an electric valve (203); the transfer bin (201) is arranged on a feeding carrier (102) through a support (2), and comprises a collecting bucket and a square frame (202); the conveying pipe (202) is arranged at the lower end of the transfer bin (201); the servo motor (210) is arranged on the feeding carrier (102) through an "n"-shaped mounting plate, and is located above the transfer bin (201); the conveying screw is arranged on the rotating shaft of the servo motor (210) through a reduction gear box, and is located in the conveying pipe (202); and the electric valve (203) is arranged on the lower end opening of the conveying pipe (202).

3. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The powder quantitative mechanism comprises a quantitative bucket structure, a supply bucket structure (303), a second electric valve, a third electric valve, a third push rod motor (304), a screw stepping motor (305), a correction plate (306), a connecting hose and a recovery hose (302); the quantitative bucket structure comprises a second square frame, a first collecting bucket (301) and a second collecting bucket; a partition plate is arranged in the second square frame; the first collecting bucket (301) and the second collecting bucket are arranged at the lower end of the second square frame, and are located on both sides of the partition plate; the connecting hose is arranged on the first collecting bucket (301) through the second electric valve; the recovery hose (302) is arranged on the second collecting bucket through the third electric valve; the supply bucket structure (303) is arranged in the quantitative bucket structure through a sliding rod; the third push rod motor (304) and the screw stepping motor (305) are arranged in the quantitative bucket structure; the movable end of the third push rod motor (304) is connected to the supply bucket structure (303); and the correction plate (306) is connected to the nut seat of the screw stepping motor (305).

4. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The push rod motor 2 (207) is arranged on the feeding carrier plate (102) through an "n"-shaped mounting frame; the connecting groove pipe (208) is arranged on the movable end of the push rod motor 2 (207), and the lower end is located above the transfer bin 1 (201).

5. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The liquid transfer mechanism comprises a transfer tank (401) and a movable cover (402); the transfer tank (401) is arranged on a material supply carrier plate (102); the movable cover (402) is detachably connected to the transfer tank (401); an overflow hole is arranged on a side plate of the transfer tank (401), and an overflow pipe (403) is arranged on the overflow hole.

6. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The liquid replenishing mechanism comprises a rectangular liquid reservoir (404) and a supply pump (405); the rectangular liquid reservoir (404) is arranged on a base (101) and is located below an overflow pipe (403); the supply pump (405) is arranged on the rectangular liquid reservoir (404); one end of a water inlet pipe of the supply pump (405) is located in the rectangular liquid reservoir (404); and one end of a water outlet pipe of the supply pump (405) is located in a transfer tank (401).

7. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The liquid quantitative mechanism comprises a quantitative box (501), a limit slide rod (502), a floating ball, a one-way valve (503) and an electric valve 5; The quantitative box (501) comprises a rectangular hollow container (1); a limit slide bar (502) is arranged on the inner wall of the upper bottom plate of the rectangular hollow container (1); a one-way valve (503) is arranged on the water inlet hole through a connecting pipe; a floating ball is slidably connected to the limit slide bar (502); the floating ball and the one-way valve (503) are connected by a rope chain; an electric valve (5) is arranged in the water outlet hole, and a connecting hose (504) is arranged at the lower end of the electric valve (5).

8. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The supply bucket structure (303) includes a trapezoidal bucket and an electric valve four.

9. The automatic feeding device for a stirring ball mill according to claim 1, characterized in that: The movable bin structure (206) comprises a trapezoidal bucket and a movable bottom plate; the trapezoidal bucket pin is connected to the movable bottom plate; and a limiting groove is arranged on the movable bottom plate.

10. The automatic feeding device for a stirring ball mill according to claim 7, characterized in that: A water inlet hole is arranged on the rear side plate of the rectangular hollow container, a water outlet hole is arranged on the lower bottom plate, and an air vent is arranged on the upper bottom plate.

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