A sand mill and method of using the same

Abstract

The present invention discloses a sand mill, which relates to the technical field of sand mills, and includes a frame, a sand mill barrel, a power assembly, and a discharge end cover. The present invention also discloses a method for using the sand mill, which includes the following steps: feeding, grinding, material screening, and unloading. The present invention arranges a sand mill barrel, and a power assembly is arranged inside the sand mill barrel. The power assembly can push the material and the grinding medium to move. Since the power assembly includes two rotating shafts, the outer sides of the two rotating shafts are provided with a push plate for pushing the material. The two rotating shafts rotating in opposite directions can make the material move toward each other inside the sand mill barrel, so that the material and the grinding medium collide in the sand mill barrel, thereby greatly increasing the collision probability between the material and the grinding medium, thereby achieving the effect of improving the grinding efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of sand mills, and in particular to a sand mill and a use method thereof. Background Art

[0002] Sand mill is the most widely adaptable, most advanced and most efficient grinding equipment. Sand mill, also known as bead mill, is mainly used for wet grinding of chemical liquid products. According to the performance, it can be roughly divided into horizontal sand mill, basket sand mill, vertical sand mill, etc. Horizontal sand mill is a kind of grinding equipment widely used in coatings. It uses a material pump to input the solid-liquid phase mixture after pre-dispersion and wetting treatment by the mixer into the cylinder. The material and the grinding media in the cylinder are stirred by the high-speed rotating disperser, so that the solid particles in the material and the grinding media have stronger collision, friction and shearing effects with each other, so as to accelerate the grinding of particles and disperse aggregates.

[0003] A horizontal sand mill with publication number CN214636953U includes a cylinder, a main shaft installed in the cylinder, and a power device for driving the main shaft, one end of the main shaft is connected to the power device, and the other end extends into the cylinder, and a centrifugal wheel is provided at the end of the main shaft located in the cylinder, and a plurality of dispersion discs are distributed on the shaft of the main shaft located in the cylinder, and the cylinder is filled with grinding media. The horizontal sand mill is mainly composed of a cylinder, a main shaft and a power device, and has a simple overall structure, so that the sand mill is not easily damaged during use, and the service life is extended. The horizontal sand mill provided by the scheme can accelerate the grinding of particles and dispersed aggregates by using a plurality of dispersion discs on the main shaft in conjunction with the grinding media in the cylinder, thereby improving production efficiency.

[0004] A horizontal sand mill with the publication number CN219540494U. The horizontal sand mill comprises: a horizontal sand mill body, the horizontal sand mill body is composed of a fuselage, an outer shell, and a cylinder, the outer shell is arranged on the fuselage, and the cylinder is arranged inside the outer shell; a main shaft, the main shaft is arranged on the fuselage, and the main shaft extends into the cylinder; a plurality of grinding discs, the plurality of grinding discs are fixedly mounted on the main shaft; a plurality of scraper plates, the plurality of scraper plates are threadedly fixedly mounted on the main shaft, and the plurality of scraper plates are in sliding contact with the inner wall of the cylinder; an automatic discharging mechanism, the automatic discharging mechanism is arranged above the outer shell. The horizontal sand mill provided by this scheme has the advantage of being able to scrape the inner wall of the cylinder when grinding the material, thereby reducing material waste.

[0005] However, there are some problems in the actual application of technical solutions similar to the above. The material is only acted on by the scraper plate and the grinding disc, the movement trajectory of the material and the grinding medium is constant, the collision probability between the material and the grinding medium remains constant, and the grinding efficiency is difficult to improve. In addition, some materials will inevitably accumulate in the grinding dead corners during the grinding process, thereby reducing the grinding effect. At the same time, most grinders can only ensure the grinding effect by increasing the speed of the drive motor, and blindly increasing the speed of the drive motor will shorten its service life.

[0006] Therefore, it is necessary to invent a sand mill and a method for using the same to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a sand mill and a method for using the same to solve the problems mentioned above.

[0008] To achieve the above object, the present invention provides the following technical solution: a sand mill, comprising a frame, and further comprising:

[0009] A sanding cylinder, comprising a fixed seat, and the fixed seat is fixedly arranged above the frame, a fixed cylinder is fixedly arranged on one side of the fixed seat, and the left and right parts inside the fixed cylinder are in a connected state;

[0010] A power assembly, comprising two rotating shafts, both of which are hollow structures, and both of which are arranged inside a fixed cylinder, a plurality of connecting sleeves are fixedly arranged on the outer side of the rotating shafts, and a plurality of pusher plates are arranged around the outer side of the connecting sleeves, and the power assembly is used to realize grinding of materials in the fixed cylinder;

[0011] The discharge end cover comprises a sealing seat, and the sealing seat is arranged at one end of the fixed cylinder, a hydraulic rod is fixedly arranged at the bottom end of the sealing seat, and one end of the hydraulic rod is fixedly arranged at one side of the fixed seat, and the discharge end cover is used to seal one end of the fixed cylinder and perform the discharge operation;

[0012] Angle adjustment components, there are two angle adjustment components, and the two angle adjustment components are respectively arranged on the outside of the corresponding side rotating shaft, and the angle adjustment components are used to adjust the pushing angle of the pushing plate.

[0013] Preferably, the angle adjustment assembly includes a pressure sensor, a drive motor and an adjustment frame, and there are two of the pressure sensor and the drive motor. The two pressure sensors are respectively arranged at the two ends of the fixed cylinder, and the two drive motors are symmetrically fixedly arranged at the two ends of the same rotating shaft. A connecting gear is fixedly arranged on the output shaft of the drive motor, and the adjustment frame is rotatably sleeved on the outer side of the corresponding rotating shaft. Tooth segments are fixedly arranged at both ends of the adjustment frame, and a plurality of limit plates are fixedly arranged on the adjustment frame, each of the limit plates is provided with a limit groove, and a connecting shaft is fixedly arranged on one side of the bottom of each push plate, and each connecting shaft is rotatably arranged inside the corresponding connecting sleeve, and a limit pin is fixedly arranged on the other side of the bottom of each push plate, and each limit pin is slidably arranged inside the corresponding limit groove.

[0014] Preferably, a plurality of extension arms are arranged around the outer side of the connecting sleeve, and the plurality of extension arms are staggered with the plurality of push plates, an extension seat is fixedly arranged at the top end of the extension arm, a shovel is arranged at the top end of the extension seat, a connecting block is fixedly arranged at the bottom end of the shovel, and the connecting block is movably arranged on the outer side of the extension seat through a pin shaft, and a plurality of arc-shaped grooves are penetrated through the top end of the shovel.

[0015] Preferably, a through slot is provided through the middle of the extension arm, an insertion rod is provided through the inside of the through slot, a pin rod is fixedly provided at the top of the insertion rod, transmission plates are provided on both sides of the pin rod, a pin hole of a strip structure is provided through the middle of the transmission plate, and the pin hole corresponds to the pin rod, a partition is fixedly provided on the outer side of the transmission plate, and the partition is fixedly provided inside the shovel.

[0016] Preferably, a sliding rod is fixedly provided at the bottom end of the insertion rod, and the sliding rod is arranged inside the rotating shaft, a plurality of fixed sleeves are arranged inside the rotating shaft, a sliding groove is arranged around the outer side of the fixed sleeve, and the sliding groove corresponds to the sliding rod, and a plurality of protrusions are arranged around the inside of the sliding groove.

[0017] Preferably, a fixed shaft is provided through the middle of the fixed sleeve, the fixed shaft is provided through the inside of the rotating shaft, and one end of the fixed shaft is fixedly provided in the middle of the fixing seat.

[0018] Preferably, two transmission gears are provided on the outer side of the fixing seat, the two transmission gears are respectively fixed on one end of the two rotating shafts, and the two transmission gears are meshed with each other, a driving gear is provided on the outer side of one of the transmission gears, and a driving motor is provided on the outer side of the driving gear.

[0019] Preferably, a material guide cover is fixedly provided on the outer side of the sealing seat, and two screens are fixedly provided inside the material guide cover. Both screens are configured as hemispherical structures, and the two screens correspond to two rotating shafts respectively, and a plurality of screen holes are provided through the middle of the screen.

[0020] Preferably, a fitting seat is movably provided in the middle of the screen through a bearing, and the fitting seat corresponds to the rotating shaft, and a discharge valve is penetrated and provided on the outer side of the material guide cover.

[0021] The invention also discloses a method for using the sand mill, comprising the following steps:

[0022] Step 1: feeding: first adjust the position of the discharge end cover so that the discharge end cover is combined with the sand mill, and then feed the material to be processed and the grinding medium into the sand mill through the feeding port on the sand mill;

[0023] Step 2: Grinding treatment: by inputting power to the power component, the power component drives the material and the grinding medium to move, so that the material and the grinding medium move in the sand mill and collide multiple times to achieve the grinding effect;

[0024] Step 3: Material screening: When the material moves to one end of the sand mill, the discharge end cover filters and screens the material. The material that meets the grinding standard moves to the inside of the discharge end cover and then is discharged from the device.

[0025] Step 4: Discharging the material. After the material is ground, adjust the position of the discharge end cover so that the discharge end cover is separated from the sand mill cylinder, and then take out the remaining material and the grinding medium to complete the material grinding process.

[0026] Technical effects and advantages of the present invention:

[0027] 1. The present invention provides a sand mill cylinder, and a power assembly is provided inside the sand mill cylinder. The power assembly can push the material and the grinding medium to move. Since the power assembly includes two rotating shafts, the outer sides of the two rotating shafts are provided with a push plate for pushing the material. The two rotating shafts rotating in opposite directions can circulate the material in the sand mill cylinder, so that the material and the grinding medium collide in the sand mill cylinder, thereby greatly increasing the collision probability between the material and the grinding medium, thereby achieving the effect of improving the grinding efficiency of the device.

[0028] 2. The present invention automatically adjusts the pushing direction of the push plate, thereby effectively avoiding the accumulation of materials and grinding media at the front and rear ends of the fixed cylinder, which helps to circulate and grind the materials and grinding media in the fixed cylinder to ensure the grinding effect of the materials. At the same time, by manually and adaptively adjusting the pushing angle of the push plate, there is no need to ensure the grinding effect by blindly increasing the speed of the driving motor, thus avoiding a large load on the driving motor and effectively extending the service life of the driving motor. In addition, the single circulation period of the material in the fixed cylinder can be shortened simultaneously, and the number of cycles in the same grinding time can be increased, so that the mixing between the materials and the grinding media is more uniform, further increasing the collision probability and improving the grinding effect.

[0029] 3. The present invention provides a power assembly, which includes a rotating shaft, a plurality of extension arms are provided on the outside of the rotating shaft, and a shovel is provided at one end of the extension arm. When the shovel follows the movement of the rotating shaft, the material can be scooped up to achieve the effect of lifting the material. At the same time, the shovel can rotate around the pin shaft at the top of the extension arm, and the rotation of the shovel is driven by the insertion rod inside the extension arm. When the insertion rod follows the rotation of the rotating shaft, the bottom end of the insertion rod is affected by the fixed sleeve inside the rotating shaft and moves up and down, thereby realizing the swing drive of the shovel, and then the range of action of the shovel on the material can be improved, and at the same time, the material can be prevented from accumulating inside the shovel, so as to improve the material processing effect of the device.

[0030] 4. The present invention sets a discharge end cover, which not only seals the device, but also has a screen inside which can screen the material to facilitate the discharge of the material. At the same time, the screen is set in a hemispherical structure. When the material moves to the inside of the screen, the material that meets the grinding standard can pass through the screen, and the remaining material can move along the inner wall of the screen to the edge of the screen, and then flow back to the inside of the device to continue processing, thereby ensuring the grinding effect of the device while achieving material screening, simplifying the material processing flow, and improving the material processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 It is a schematic top-sectional view of the overall structure of the present invention.

[0033] Figure 3 It is a schematic diagram of the discharge end cover structure of the present invention.

[0034] Figure 4 It is a top-sectional schematic diagram of the discharge end cover structure of the present invention.

[0035] Figure 5 It is a diagram of the movement trajectory of the material inside the sand mill cylinder of the present invention.

[0036] Figure 6 It is a schematic diagram of the structure of the power assembly of the present invention.

[0037] Figure 7 It is a schematic diagram of the transmission gear structure of the present invention.

[0038] Figure 8 It is a partial schematic diagram of the power assembly structure of the present invention.

[0039] Fig. 9 It is a schematic diagram of the connecting sleeve structure of the present invention.

[0040] Fig.10 It is a schematic cross-sectional view of the connecting sleeve structure of the present invention.

[0041] Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure in the middle.

[0042] Fig.12 It is a schematic diagram of the structure of the fixing sleeve of the present invention.

[0043] Fig.13 It is a schematic diagram of the position of the pressure sensor of the present invention.

[0044] Fig.14 It is a schematic diagram of the position of the driving motor of the present invention.

[0045] Fig.15 It is a schematic diagram of the position of the angle adjustment component of the present invention.

[0046] Fig.16 For the present invention Fig.15 Enlarged schematic diagram of the structure at point B in the middle.

[0047] Fig.17 It is a schematic diagram of the structure of the adjustment frame of the present invention.

[0048] Fig.18 It is a schematic diagram of the position of the limit pin of the present invention.

[0049] In the figure: 1, frame; 2, sanding cylinder; 3, power assembly; 4, discharge end cover; 5, angle adjustment assembly; 201, fixed seat; 202, fixed cylinder; 203, transmission gear; 204, driving gear; 205, driving motor; 301, rotating shaft; 302, connecting sleeve; 303, pushing plate; 304, extension arm; 305, extension seat; 306, shovel; 307, connecting block; 308, groove; 309, through groove; 310, plug rod; 311, pin rod; 312, transmission plate; 3 13. Pin hole; 314. Partition; 315. Slide rod; 316. Fixed sleeve; 317. Slide groove; 318. Protrusion; 319. Fixed shaft; 401. Sealing seat; 402. Hydraulic rod; 403. Material guide cover; 404. Screen; 405. Screen hole; 406. Fitting seat; 407. Discharge valve; 501. Pressure sensor; 502. Drive motor; 503. Adjustment frame; 504. Connecting gear; 505. Tooth segment; 506. Limit plate; 507. Limit groove; 508. Limit pin. DETAILED DESCRIPTION

[0050] 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.

[0051] Embodiment 1, the present invention provides as Figures 1 to 12 The sand mill shown includes a frame 1, a sand mill cylinder 2, a power assembly 3 and a discharge end cover 4, wherein the power assembly 3 is arranged inside the sand mill cylinder 2, the discharge end cover 4 is arranged at one end of the sand mill cylinder 2, and the sand mill cylinder 2, the power assembly 3 and the discharge end cover 4 are all arranged above the frame 1.

[0052] The sanding cylinder 2 includes a fixing seat 201 , and the fixing seat 201 is fixedly arranged above the frame 1 , a fixing cylinder 202 is fixedly arranged on one side of the fixing seat 201 , and the left and right parts inside the fixing cylinder 202 are in a communicating state.

[0053] Specifically, two transmission gears 203 are arranged on the outer side of the fixed seat 201, and the two transmission gears 203 are respectively fixed on one end of the two rotating shafts 301, and the two transmission gears 203 are meshed with each other. A driving gear 204 is arranged on the outer side of one transmission gear 203, and a driving motor 205 is arranged on the outer side of the driving gear 204, and the driving motor 205 is used to provide power.

[0054] The power assembly 3 includes two rotating shafts 301, both of which are configured as hollow structures, and both of which are arranged inside the fixed cylinder 202; specifically, a plurality of connecting sleeves 302 are fixedly arranged on the outer side of the rotating shaft 301, a plurality of pushing plates 303 are arranged around the outer side of the connecting sleeve 302, and the pushing plates 303 are configured as an inclined structure, a plurality of extension arms 304 are arranged around the outer side of the connecting sleeve 302, and the plurality of extension arms 304 and the plurality of pushing plates 303 are arranged in an alternating manner, an extension seat 305 is fixedly arranged on the top end of the extension arm 304, a shovel 306 is arranged on the top end of the extension seat 305, a connecting block 307 is fixedly arranged on the bottom end of the shovel 306, and the connecting block 307 is movably arranged on the outer side of the extension seat 305 through a pin shaft.

[0055] More specifically, the top of the shovel 306 is penetrated by a plurality of arc-shaped grooves 308, and the grooves 308 facilitate the shovel 306 to scoop up the materials; and a through slot 309 is penetrated by the middle of the extension arm 304, and an insertion rod 310 is penetrated inside the through slot 309, and a pin rod 311 is fixedly provided at the top of the insertion rod 310, and transmission plates 312 are provided on both sides of the pin rod 311, and a pin hole 313 with a strip structure is penetrated in the middle of the transmission plate 312, and the pin hole 313 corresponds to the pin rod 311. The design of the strip structure of the pin hole 313 ensures the transmission effect of the transmission plate 312, the pin rod 311 and the insertion rod 310, while also avoiding the situation where the insertion rod 310 is limited by the through slot 309 and becomes difficult to move. A partition plate 314 is fixedly provided on the outer side of the transmission plate 312, and the partition plate 314 is fixedly provided inside the shovel 306.

[0056] Moreover, a sliding rod 315 is fixedly provided at the bottom end of the insertion rod 310, and the sliding rod 315 is arranged inside the rotating shaft 301. A plurality of fixed sleeves 316 are arranged inside the rotating shaft 301. A sliding groove 317 is arranged around the outer side of the fixed sleeve 316, and the sliding groove 317 corresponds to the sliding rod 315. A plurality of protrusions 318 are arranged around the inside of the sliding groove 317. When the sliding rod 315 moves in the sliding groove 317, the protrusion 318 can squeeze the sliding rod 315, so that the sliding rod 315 moves outward intermittently, so as to realize the driving of the shovel 306 to swing in the gap.

[0057] At the same time, a fixed shaft 319 is set through the middle of the fixed sleeve 316, and the fixed shaft 319 is set through the inside of the rotating shaft 301, and one end of the fixed shaft 319 is fixed at the middle of the fixed seat 201. When the rotating shaft 301 rotates, the fixed shaft 319 remains stationary. The fixed shaft 319 can support the position of the fixed sleeve 316 to ensure that the fixed sleeve 316 guides the sliding rod 315 and the insertion rod 310.

[0058] The discharge end cover 4 includes a sealing seat 401, which is arranged at one end of the fixed seat 201 and above the frame 1. A hydraulic rod 402 is fixedly arranged at the bottom end of the sealing seat 401, and one end of the hydraulic rod 402 is fixedly arranged on one side of the fixed seat 201.

[0059] Specifically, a material guide cover 403 is fixedly provided on the outer side of the sealing seat 401, and two screens 404 are fixedly provided inside the material guide cover 403. The two screens 404 are both arranged in a hemispherical structure. The design of the hemispherical structure increases the contact area between the material and the screen 404, and at the same time allows the screened material to move along the inner wall of the screen 404 and flow back into the fixed cylinder 202. The two screens 404 correspond to the two rotating shafts 301 respectively, and a plurality of screen holes 405 are penetrated in the middle of the screen 404, and the screen holes 405 are used to screen the material.

[0060] More specifically, a fitting seat 406 is movably provided in the middle of the screen 404 through a bearing, and the fitting seat 406 corresponds to the rotating shaft 301. The fitting seat 406 can fit with one end of the rotating shaft 301 to improve the stability of the rotating shaft 301. A discharge valve 407 is provided on the outer side of the material guide cover 403, and the discharge valve 407 is used to control the discharge of materials.

[0061] The present invention also provides a method for using a sand mill, comprising the following steps:

[0062] Step 1: feeding, first adjust the position of the discharge end cover 4 so that the discharge end cover 4 and the sand mill 2 are combined, and then feed the material to be processed and the grinding medium into the interior of the sand mill 2 through the feeding port on the sand mill 2.

[0063] The position of the discharge end cover 4 can be adjusted by the hydraulic rod 402. When the sealing seat 401 in the discharge end cover 4 fits with one end of the fixed cylinder 202, the fixed cylinder 202 completes the sealing. At this time, the material and the grinding medium are sealed in the fixed cylinder 202 to facilitate the grinding work.

[0064] Step 2: Grinding treatment: power is input to the power component 3 so that the power component 3 drives the material and the grinding medium to move, thereby causing the material and the grinding medium to move in the sand mill 2 and collide multiple times to achieve a grinding effect.

[0065] When processing the material, the driving motor 205 drives the transmission gear 203 to rotate through the driving gear 204. At this time, the two transmission gears 203 rotate in opposite directions. The two transmission gears 203 respectively drive the two rotating shafts 301 to rotate. The rotating shaft 301 drives the pushing plate 303 and the shovel 306 to rotate, and the pushing directions of the pushing plates 303 on the two rotating shafts 301 are opposite, so that the material moves inside the fixed cylinder 202. At this time, the material collides with the grinding medium multiple times to achieve the grinding effect.

[0066] When the rotating shaft 301 rotates, the fixed sleeve 316 and the fixed shaft 319 remain stationary, and the insertion rod 310 rotates with the rotating shaft 301. At this time, the sliding rod 315 at the bottom end of the insertion rod 310 slides in the sliding groove 317. When the sliding rod 315 moves to the position of the protrusion 318, the sliding rod 315 is affected by the protrusion 318 and moves upward. At this time, the sliding rod 315 drives the insertion rod 310 to move upward, and the insertion rod 310 drives the pin rod 311 to move upward. The pin rod 311 squeezes the inner wall of the pin hole 313, so that the transmission plate 312 moves. The transmission plate 312 drives the shovel 306 to move through the partition plate 314, so that the shovel 306 moves around the pin shaft at the connecting block 307. At this time, the shovel 306 swings slightly to achieve additional push on the material and the grinding medium, while improving the material pushing effect. Avoid the material and the grinding medium from adhering to and accumulating inside the shovel 306.

[0067] Step three, material screening, when the material moves to one end of the sand mill 2, the discharge end cover 4 filters and screens the material, and the material that meets the grinding standard moves to the inside of the discharge end cover 4 and then is discharged from the device.

[0068] When the material moves in the fixed cylinder 202, when the material moves to the screen 404, the material can enter the recessed position in the middle of the screen 404. At this time, the material that meets the grinding standard can pass through the screen hole 405 into the material guide cover 403, and then be discharged through the discharge valve 407. The material that does not meet the grinding standard can move along the inner wall of the screen 404 to its edge, and then continue to be processed under the action of the power component 3 until the grinding standard is met.

[0069] Step 4: unloading. After the material is ground, adjust the position of the discharge end cover 4 so that the discharge end cover 4 is separated from the sand mill cylinder 2, and then take out the remaining material and the grinding medium to complete the material grinding process.

[0070] Embodiment 2. In the above embodiment, by setting components such as a rotating shaft 301, a pushing plate 303, a shovel 306, an insert rod 310, a slide bar 315 and a protrusion 318, during the movement of the power component 3, the two rotating shafts 301 with opposite directions can drive the pushing plates 303 to push the material to move toward each other, so that the material and the grinding medium continuously and cyclically collide in the sand mill 2, thereby increasing the collision probability between the material and the grinding medium, thereby achieving the effect of improving the grinding efficiency of the device. At the same time, the shovel 306 rotates synchronously with the rotating shaft 301, thereby bringing up the material to achieve the effect of lifting the material. At the same time, with the cooperation of the slide bar 315 and the protrusion 318, the shovel 306 swings, thereby increasing the range of action of the shovel 306 on the material, and avoiding the accumulation of material inside the shovel 306, thereby improving the material processing effect. Although the two rotating shafts 301 with opposite directions can make the push plate 303 drive the material to circulate and collide continuously, it is still inevitable that some materials will accumulate at the front and rear ends of the fixed cylinder 202. As the grinding work continues, the materials accumulated at the front and rear ends of the fixed cylinder 202 will gradually increase, making it impossible for the materials to circulate smoothly in the fixed cylinder 202, resulting in a poor grinding effect of the materials. When there are too many materials accumulated at the front and rear ends of the fixed cylinder 202, it may even affect the normal operation of the device. At the same time, the grinding effect of the materials depends on the collision speed and force between the materials and the grinding medium, and the collision speed and force between the materials and the grinding medium mainly depend on the push of the push plate 303, that is, it depends on the speed at which the rotating shaft 301 drives the push plate 303 to rotate, that is, it depends on the speed of the drive motor 205. However, the drive motor 205 has a limit speed. If the push of the push plate 303 on the material is improved by completely increasing the speed of the drive motor 205, a large load will be placed on the drive motor 205, which is likely to affect the service life of the drive motor 205. Therefore, further improvements are made to the scheme of the present invention to avoid the accumulation of materials and grinding media at the front and rear ends of the fixed cylinder 202, to ensure that the materials and grinding media can be smoothly circulated and ground in the fixed cylinder 202. At the same time, the angle of the push plate 303 can be adaptively adjusted according to the difficulty of grinding the material. The collision speed and force between the material and the grinding medium can be increased without increasing the rotation speed of the drive motor 205, and the circulation speed of the material and the grinding medium in the fixed cylinder 202 can be accelerated, thereby improving the grinding effect of the material and effectively extending the service life of the drive motor 205.

[0071] Specifically, Figures 13 to 18As shown, each rotating shaft 301 is provided with an angle adjustment component 5, and the angle adjustment component 5 includes a pressure sensor 501, a driving motor 502 and an adjustment frame 503. There are two pressure sensors 501, and the two pressure sensors 501 are respectively fixedly arranged on the same side of the fixing seat 201 and the sealing seat 401, and the two pressure sensors 501 are located at both ends of the inside of the fixing cylinder 202. The pressure sensor 501 detects the accumulation of materials and grinding media at both ends of the fixing cylinder 202. There are two driving motors 502, and the two driving motors 50 2 are symmetrically fixedly arranged at the two ends of the same rotating shaft 301, and the two driving motors 502 can ensure the adjustment stability of the adjustment frame 503. The output shaft of each driving motor 502 is fixedly connected with a connecting gear 504. The adjustment frame 503 is rotatably sleeved on the outer side of the corresponding rotating shaft 301. The two ends of the adjustment frame 503 are respectively sleeved on one side of the two connecting sleeves 302 located at the two ends of the corresponding rotating shaft 301. The adjustment frame 503 can rotate on the corresponding rotating shaft 301. The two ends of the adjustment frame 503 are fixedly provided with tooth segments 505 meshing with the connecting gear 504 on the same side.

[0072] More specifically, a plurality of limit plates 506 are fixedly provided on the adjustment frame 503, each limit plate 506 is fitted with the corresponding connecting sleeve 302, and a limit groove 507 is provided on each limit plate 506. A connecting shaft is fixedly provided on one side of the bottom of each push plate 303, and each connecting shaft is rotatably provided inside the corresponding connecting sleeve 302. The connecting shaft can only rotate inside the corresponding connecting sleeve 302, and the connecting shaft will not escape from the corresponding connecting sleeve 302. A limit pin 508 is fixedly provided on the other side of the bottom of each push plate 303, and each limit pin 508 is slidably provided inside the corresponding limit groove 507. The connecting shaft, limit pin 508 and limit plate 506 are all made of high-strength material to ensure the connection strength between the push plate 303 and the connecting sleeve 302.

[0073] It should be noted that a controller is provided on the outside of the fixing seat 201, and the pressure sensor 501 and the drive motor 502 are both connected to the controller signal. The controller can control the drive motor 502 by receiving the signal transmitted by the pressure sensor 501, and can also control the drive motor 502 by manual adjustment.

[0074] When the material and the grinding medium are accumulated at the front and rear ends of the fixed cylinder 202, the two angle adjustment components 5 work synchronously. At this time, the pressure sensor 501 transmits a signal to the controller. At this time, the controller controls the drive motor 502 to rotate synchronously. The drive motor 502 drives the adjustment frame 503 to rotate by connecting the gear 504 and the gear segment 505. During the rotation of the adjustment frame 503, the adjustment frame 503 will drive the multiple limit plates 506 to move. When the limit plates 506 move, the limit grooves 507 thereon will force the corresponding limit pins 508 to move. At this time, the limit pins 508 will The corresponding push plates 303 are driven to rotate around their connecting shafts, thereby adjusting the pushing angles of the push plates 303 until the pushing direction of the push plates 303 is switched to the opposite state, and the driving motor 502 stops rotating. At this time, the multiple push plates 303 will push the materials and grinding media accumulated at the front and rear ends of the fixed cylinder 202 in the opposite direction, so that the materials accumulated at the front and rear ends of the fixed cylinder 202 can be unblocked, avoiding continuous accumulation of materials and grinding media at the front and rear ends of the fixed cylinder 202, and helping the materials and grinding media to circulate and grind in the fixed cylinder 202, thereby ensuring the grinding effect of the materials.

[0075] In addition, the push plate 303 can be adaptively adjusted according to the wear resistance of the material. When the material to be ground is difficult to grind, the push angle of the push plate 303 can be manually adjusted through the angle adjustment component 5. The operator manually controls the drive motor 502 to rotate through the controller, so that the push angles of multiple push plates 303 become larger. When the push angle of the push plate 303 becomes larger, the speed at which the push plate 303 pushes the material and the grinding medium to move will become faster, that is, the speed at which the material and the grinding medium move in the fixed cylinder 202 will also become faster, thereby increasing the collision speed and collision force between the material and the grinding medium, so that the push plate 303 has a greater impact on the material and the grinding medium. The thrust force provided can be increased, thereby increasing the collision speed and force between the material and the grinding medium. There is no need to ensure the grinding effect by simply increasing the rotation speed of the drive motor 205, avoiding a large load on the drive motor 205, and effectively extending the service life of the drive motor 205. Moreover, at this time, the cycle time for the material and the grinding medium to complete a single cycle in the fixed cylinder 202 will be shortened, so that the number of cycles of the material and the grinding medium in the fixed cylinder 202 in the same time is increased, which can make the mixing between the material and the grinding medium more uniform, and the collision probability between the two will also increase accordingly, and the collision and friction between them will be more sufficient, further ensuring the grinding effect.

[0076] Therefore, by automatically adjusting the pushing direction of the push plate 303, the accumulation of materials and grinding media at the front and rear ends of the fixed cylinder 202 is effectively avoided, which helps to circulate and grind the materials and grinding media in the fixed cylinder 202 to ensure the grinding effect of the materials. At the same time, by manually and adaptively adjusting the pushing angle of the push plate 303, there is no need to increase the speed of the drive motor 205 to ensure the grinding effect, thus avoiding a large load on the drive motor 205 and effectively extending the service life of the drive motor 205. In addition, the single circulation period of the material in the fixed cylinder 202 can be shortened simultaneously, and the number of cycles in the same grinding time can be increased, so that the material and the grinding media are mixed more evenly, further increasing the collision probability and improving the grinding effect.

[0077] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand mill, comprising a frame (1), characterized in that: Also includes: A sanding cylinder (2), comprising a fixed seat (201), wherein the fixed seat (201) is fixedly arranged above the frame (1), a fixed cylinder (202) is fixedly arranged on one side of the fixed seat (201), and left and right parts inside the fixed cylinder (202) are in a connected state; A power assembly (3), comprising two rotating shafts (301), both rotating shafts (301) being configured as hollow structures, and both rotating shafts (301) being disposed inside a fixed cylinder (202), a plurality of connecting sleeves (302) being fixedly disposed outside the rotating shafts (301), a plurality of pushing plates (303) being disposed around the outside of the connecting sleeves (302), and the power assembly (3) being used to grind materials inside the fixed cylinder (202); A discharge end cover (4), comprising a sealing seat (401), wherein the sealing seat (401) is arranged at one end of the fixed cylinder (202), a hydraulic rod (402) is fixedly arranged at the bottom end of the sealing seat (401), and one end of the hydraulic rod (402) is fixedly arranged at one side of the fixed seat (201), and the discharge end cover (4) is used to seal one end of the fixed cylinder (202) and perform a discharge operation; An angle adjustment component (5), wherein there are two angle adjustment components (5), and the two angle adjustment components (5) are respectively arranged outside the corresponding side rotating shaft (301), and the angle adjustment component (5) is used to adjust the pushing angle of the pushing plate (303); The angle adjustment component (5) comprises a pressure sensor (501), a drive motor (502) and an adjustment frame (503). The number of the pressure sensor (501) and the drive motor (502) is two, and the two pressure sensors (501) are respectively arranged at two ends of the fixed cylinder (202). The two drive motors (502) are symmetrically fixedly arranged at two ends of the same rotating shaft (301). A connecting gear (504) is fixedly arranged on the output shaft of the drive motor (502). The adjustment frame (503) is rotatably sleeved on the outer side of the corresponding rotating shaft (301). Both ends of the adjustment frame (503) are fixedly provided with tooth segments (505); a plurality of limit plates (506) are fixedly provided on the adjustment frame (503); each of the limit plates (506) is provided with a limit slot (507); a connecting shaft is fixedly provided on one side of the bottom of each push plate (303); each connecting shaft is rotatably provided inside a corresponding connecting sleeve (302); a limit pin (508) is fixedly provided on the other side of the bottom of each push plate (303); each limit pin (508) is slidably provided inside a corresponding limit slot (507); A plurality of extension arms (304) are arranged around the outer side of the connecting sleeve (302), and the plurality of extension arms (304) and the plurality of push plates (303) are arranged in a staggered manner. An extension seat (305) is fixedly arranged at the top end of the extension arm (304), a material shovel (306) is arranged at the top end of the extension seat (305), a connecting block (307) is fixedly arranged at the bottom end of the material shovel (306), and the connecting block (307) is movably arranged on the outer side of the extension seat (305) through a pin shaft, and a plurality of arc-shaped grooves (308) are arranged through the top end of the material shovel (306).

2. A sand mill according to claim 1, characterized in that: A through slot (309) is provided through the middle of the extension arm (304), an insertion rod (310) is provided through the interior of the through slot (309), a pin rod (311) is fixedly provided at the top of the insertion rod (310), transmission plates (312) are provided on both sides of the pin rod (311), a pin hole (313) of a strip structure is provided through the middle of the transmission plate (312), and the pin hole (313) corresponds to the pin rod (311), a partition plate (314) is fixedly provided on the outer side of the transmission plate (312), and the partition plate (314) is fixedly provided inside the shovel (306).

3. A sand mill according to claim 2, characterized in that: A sliding rod (315) is fixedly provided at the bottom end of the insertion rod (310), and the sliding rod (315) is arranged inside the rotating shaft (301). A plurality of fixing sleeves (316) are arranged inside the rotating shaft (301). A sliding groove (317) is arranged around the outer side of the fixing sleeve (316), and the sliding groove (317) corresponds to the sliding rod (315). A plurality of protrusions (318) are arranged around the inside of the sliding groove (317).

4. A sand mill according to claim 3, characterized in that: A fixed shaft (319) is provided through the middle of the fixed sleeve (316), the fixed shaft (319) is provided through the interior of the rotating shaft (301), and one end of the fixed shaft (319) is fixedly provided in the middle of the fixed seat (201).

5. A sand mill according to claim 1, characterized in that: Two transmission gears (203) are arranged on the outside of the fixing seat (201); the two transmission gears (203) are respectively fixedly arranged at one end of the two rotating shafts (301), and the two transmission gears (203) are meshed with each other; a driving gear (204) is arranged on the outside of one of the transmission gears (203); and a driving motor (205) is arranged on the outside of the driving gear (204).

6. A sand mill according to claim 1, characterized in that: A material guide cover (403) is fixedly arranged on the outside of the sealing seat (401), and two screens (404) are fixedly arranged inside the material guide cover (403). The two screens (404) are both arranged in a hemispherical structure, and the two screens (404) correspond to the two rotating shafts (301) respectively. A plurality of screen holes (405) are arranged through the middle of the screen (404).

7. A sand mill according to claim 6, characterized in that: A fitting seat (406) is movably provided in the middle of the screen (404) via a bearing, and the fitting seat (406) corresponds to the rotating shaft (301). A discharge valve (407) is provided through the outer side of the material guide cover (403).

8. A method for using a sand mill, applied to a sand mill according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: feeding, firstly adjusting the position of the discharge end cover (4) so ​​that the discharge end cover (4) and the sand mill cylinder (2) are fully assembled, and then feeding the material to be processed and the grinding medium into the interior of the sand mill cylinder (2) through the feeding port on the sand mill cylinder (2); Step 2: grinding treatment, by inputting power into the power component (3), so that the power component (3) drives the material and the grinding medium to move, thereby causing the material and the grinding medium to move in the sand mill cylinder (2) and collide multiple times, so as to achieve a grinding effect; Step 3: Material screening: When the material moves to one end of the sand mill (2), the discharge end cover (4) filters and screens the material, and the material that meets the grinding standard moves to the inside of the discharge end cover (4) and then is discharged from the device; Step 4: unloading. After the material is ground, the position of the discharge end cover (4) is adjusted so that the discharge end cover (4) is separated from the sand mill cylinder (2), and then the remaining material and the grinding medium are taken out, thus completing the material grinding process.

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