CN221245567U - Dynamic centrifugal sand mill - Google Patents

Abstract

The utility model provides a dynamic centrifugal sand mill, and relates to the field of grinding equipment. The dynamic centrifugal sand mill comprises: the device comprises a machine tool, a grinding device, a discharging device and a cleaning device; the grinding device is arranged on the machine tool, and the discharging device is connected with the grinding device; the cleaning device comprises a scraping assembly and a transmission assembly; the scraping component is arranged in the discharging device, the transmission component is arranged on the discharging device, and the transmission component is connected with the scraping component. The scheme of the utility model realizes the automatic cleaning of the screen mesh in the sand mill, and avoids the problem that the screen mesh is blocked and is propped up due to skinning paint slurry when the sand mill discharges.

Description

Dynamic centrifugal sand mill

Technical Field

The utility model relates to the field of grinding equipment, in particular to a dynamic centrifugal sand mill.

Background

The sand mill belongs to wet superfine grinding equipment and is developed from a ball mill. The pigment dispersing and grinding method is widely applied to pigment dispersing and grinding in the ink production process. The sand mill can be classified into a disc type, a rod disc type, a vertical type, a horizontal type, a static type, a dynamic separation sand mill and the like according to different classification modes.

Dynamic centrifugal sand mills are devices for grinding and dispersing particulate materials by utilizing a high-speed rotating sanding body or grinding stone, and centrifugal force to push the material against the surface of the grinding stone, and are commonly used in the art of preparing pigments, inks, paints, cosmetics, foods, and pharmaceuticals to achieve a desired particle size and dispersion.

In the related art, since parts inside the sand mill are generally difficult to clean, more cleaning and switching time may be required when handling different materials or colors, and the screen is liable to skinning slurry when the sand mill is discharged, thus causing the screen to clog and roof.

Therefore, there is a need to provide a solution to the above-mentioned problems.

Disclosure of utility model

The utility model provides a dynamic centrifugal sand mill, which solves the problems existing in the prior art.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

embodiments of the present utility model provide a dynamic centrifugal sand mill comprising:

The device comprises a machine tool, a grinding device, a discharging device and a cleaning device;

The grinding device is arranged on the machine tool, and the discharging device is connected with the grinding device; the cleaning device comprises a scraping assembly and a transmission assembly; the scraping component is arranged in the discharging device, the transmission component is arranged on the discharging device, and the transmission component is connected with the scraping component.

In any of the above schemes, preferably, the discharging device comprises a discharging cylinder, an annular groove, a filter screen and a discharging hole; the discharging cylinder is connected with the output end of the grinding device; the annular groove is positioned in the discharging cylinder and is fixedly connected with the bottom surface of the discharging cylinder; the filter network card is arranged in the annular groove so as to divide the discharging cylinder into an inner cavity and an outer cavity; the discharging cylinder is provided with a discharging hole which is communicated with the outer cavity.

In any of the above aspects, preferably, the tapping cylinder includes: an upper cover, a fixing assembly and a cylinder; the upper cover is connected with the cylinder body through the fixing component.

In any of the above schemes, preferably, the fixing assembly comprises a fixing shaft, a buckle and a fixing piece, one end of the fixing shaft is in threaded connection with the cylinder body, the buckle is sleeved on the fixing shaft and is in rotary connection with the fixing shaft, and the fixing piece is in threaded connection with the other end of the fixing shaft.

In any of the above aspects, preferably, the transmission assembly includes: the motor, the first gear, the second gear, the screw rod and the gear protection shell; the motor is arranged on the upper cover and fixedly connected with the upper cover, the first gear is sleeved on the motor output shaft, the second gear is sleeved on the screw rod and fixedly connected with the screw rod, the gear protection shell is arranged on the motor and fixedly connected with the motor, and the first gear and the second gear are meshed and arranged in the gear protection shell; one end of the screw rod is rotationally connected with the gear protection shell, and the screw rod is fixedly connected with the second gear.

In any of the above aspects, preferably, the scraping assembly includes a connecting rod and a scraper, wherein one end of the connecting rod is in threaded connection with the other end of the screw; the scraping plate is arranged at the other end of the connecting rod, and is abutted with the inner wall of the filter screen.

In any of the above aspects, preferably, the grinding device includes a grinding barrel, a grinding spindle, a driving device, and a grinding sheet; the grinding barrel is provided with a feed inlet and a discharge pipe; the grinding barrel is arranged on the machine tool, and the grinding rotating shaft is arranged in the grinding barrel; the driving device is arranged on the machine tool, is connected with the grinding rotating shaft and is used for driving the grinding rotating shaft to rotate, the grinding sheets are provided with a plurality of groups, and a plurality of groups of the grinding sheets are annularly arranged on the grinding rotating shaft.

In any of the above schemes, preferably, the grinding barrel further comprises a first water inlet, a first water outlet and a pressure gauge, wherein the first water inlet is arranged below the grinding barrel and communicated with the grinding barrel, and the first water outlet is arranged above the grinding barrel and communicated with the grinding barrel; the pressure gauge is arranged on one surface of the grinding barrel, which is far away from the driving device.

In any of the above aspects, preferably, a check valve is provided on the discharge pipe.

The scheme of the utility model at least comprises the following beneficial effects:

The dynamic centrifugal sand mill of the utility model comprises: the device comprises a machine tool, a grinding device, a discharging device and a cleaning device; the grinding device is arranged on the machine tool, and the discharging device is connected with the grinding device; the cleaning device comprises a scraping assembly and a transmission assembly; the scraping component is arranged in the discharging device, the transmission component is arranged on the discharging device, and the transmission component is connected with the scraping component. The automatic cleaning device has the advantages that the automatic cleaning of the screen cloth in the sand mill is realized, and the problem that the screen cloth is blocked and roof is raised due to skinning paint slurry when the sand mill discharges is avoided.

Drawings

FIG. 1 is a schematic perspective view of a dynamic centrifugal sand mill of the present utility model;

FIG. 2 is a schematic view of the overall structure of the dynamic centrifugal sand mill of the present utility model;

FIG. 3 is a perspective view of the grinding apparatus of the dynamic centrifugal sand mill of the present utility model;

FIG. 4 is a front cross-sectional view of the discharge device of the dynamic centrifugal sand mill of the present utility model in a three-dimensional configuration;

FIG. 5 is another angular perspective view of the discharge device of the dynamic centrifugal sand mill of the present utility model;

FIG. 6 is an enlarged view of a perspective structure A of a discharging device of the dynamic centrifugal sand mill of the utility model;

FIG. 7 is a side cross-sectional view of the discharge device of the dynamic centrifugal sand mill of the present utility model in a three-dimensional configuration;

FIG. 8 is an enlarged view at section B of a side view of the discharge device of the dynamic centrifugal sand mill of the present utility model;

Fig. 9 is a perspective view of a fixed assembly of the discharge device of the dynamic centrifugal sand mill of the present utility model.

Reference numerals illustrate:

1. A machine tool; 2. a grinding device; 21. a grinding barrel; 211. a feed inlet; 212. a discharge pipe; 213. a first water inlet; 214. a first water outlet; 215. a pressure gauge; 22. grinding the rotating shaft; 23. a driving device; 24. grinding sheets; 3. a discharging device; 31. a discharge cylinder; 311. an upper cover; 312. a fixing assembly; 3121. a fixed shaft; 3122. a buckle; 3123. a fixing piece; 313. a cylinder; 32. an annular groove; 33. a filter screen; 34. a discharge port; 35. a check valve; 36. a second water inlet; 37. a second water outlet; 4. a cleaning device; 41. a motor; 42. a first gear; 43. a second gear; 44. a screw; 45. a gear protective housing; 46. a connecting rod; 47. a scraper.

Detailed Description

Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 1 to 9, an embodiment of the present utility model provides a dynamic centrifugal sand mill including: a machine tool 1, a grinding device 2, a discharging device 3 and a cleaning device 4; the grinding device 2 is arranged on the machine tool 1, and the discharging device 3 is connected with the grinding device 2; the cleaning device 4 comprises a scraping assembly and a transmission assembly; the scraping component is arranged in the discharging device 3, the transmission component is arranged on the discharging device 3, and the transmission component is connected with the scraping component.

In the application, a grinding device 2 works on a machine tool 1, and a discharging device 3 conveys the ground materials after grinding the materials. In the material conveying process, in order to keep the equipment clean and prevent blockage, the scraping component of the cleaning device 4 can remove the material remained on the discharging device 3, and the transmission component ensures that the scraping component can act, so that the cleaning work is completed.

As shown in fig. 1 to 9, the discharging device 3 comprises a discharging cylinder 31, an annular groove 32, a filter screen 33 and a discharging port 34; the discharging cylinder 31 is connected with the output end of the grinding device 2; the annular groove 32 is positioned in the discharging cylinder 31 and is fixedly connected with the bottom surface of the discharging cylinder 31; the filter screen 33 is clamped in the annular groove 32 to divide the discharging cylinder 31 into an inner cavity and an outer cavity; the discharge cylinder 31 is provided with a discharge port 34, and the discharge port 34 is communicated with the outer cavity.

In the application, the discharge cylinder 31 ensures that the ground material can smoothly flow out of the system, and the material enters the discharge cylinder 31 from the output end of the grinding device 2 and flows out through the discharge port 34. The filter screen 33 is clamped in the annular groove 32 to divide the discharge cylinder 31 into an inner cavity and an outer cavity. This helps filter the material, intercepts particulate matter on filter screen 33, prevents particulate matter from entering discharge gate 34, keeps the independence of interior outer chamber, simultaneously, discharge gate 34 links to each other with the outer chamber, ensures that the filtered material can flow out the system smoothly.

As shown in fig. 1 to 9, the discharge cylinder 31 includes: an upper cover 311, a fixing assembly 312, and a cylinder 313; the upper cover 311 is connected with the cylinder 313 through the fixing assembly 312; the second water inlet 36 is arranged on the upper cover 311 and is communicated with the outer cavity of the discharging cylinder 31; the second water outlet 37 is arranged at the bottom of the discharging cylinder 31 and is communicated with the inner cavity of the discharging cylinder 31.

In the present application, the upper cover 311 is fastened to the cylinder 313 by the fixing assembly 312, maintains the sealing of the system, and can be directly replaced by removing the upper cover 311 when internal maintenance or replacement of parts is required. The second water inlet 36 is located on the upper cover 311 and is connected to the outer chamber of the tapping cylinder 31, allowing liquid or cleaning medium to enter the outer surrounding space of the tapping cylinder 31. A second water outlet 37 is provided in the bottom of the tapping cylinder 31 and communicates with the inner chamber, allowing liquid or cleaning medium to drain from the inner chamber. In this configuration, liquid or cleaning medium first enters the outer chamber of the discharge cylinder 31 through the second water inlet 36 and then flows from the outer chamber to the inner chamber while the filter screen 33 is being treated to clean the waste material attached to the filter screen 33. The cleaning liquid can then be discharged from the inner chamber through a second water outlet 37, which is located at the bottom of the discharge cylinder 31 and communicates with the inner chamber, so that the cleaning liquid, the waste material remaining on the filter screen 33 and the solid residues due to insufficient grinding can be discharged from the inside of the cylinder 313.

As shown in fig. 1 to 9, the fixing assembly 312 includes a fixing shaft 3121, a buckle 3122, and a fixing piece 3123, one end of the fixing shaft 3121 is in threaded connection with the cylinder 313, the buckle 3122 is sleeved on the fixing shaft 3121 and is in rotational connection with the fixing shaft 3121, and the fixing piece 3123 is in threaded connection with the other end of the fixing shaft 3121.

In the present application, the fixing member 312 fixes or releases the upper cover 311 by a mechanical coupling mechanism, when the upper cover 311 is to be locked, the fixing shaft 3121 is already screw-coupled to the cylinder 313 through one end thereof, the snap 3122 is sleeved on the fixing shaft 3121, and then the fixing plate 3123 is screw-coupled to the other end of the fixing shaft 3121, and the snap 3122 is rotated to the locking position around the fixing shaft 3121, so that the upper cover 311 is safely fixed to the cylinder 313. When it is desired to open or remove the upper cover 311, the clasp 3122 may be rotated to an unlocked position allowing the securing tab 3123 to be released and thereby disengaged from the stationary shaft 3121, allowing the upper cover 311 to be removed from the cylinder 313.

As shown in fig. 1 to 9, the transmission assembly includes: a motor 41, a first gear 42, a second gear 43, a screw 44, a gear protection housing 45; the motor 41 is arranged on the upper cover 311 and fixedly connected with the upper cover 311, the first gear 42 is sleeved on an output shaft of the motor 41, the second gear 43 is sleeved on the screw 44, the screw 44 is fixedly connected with the second gear 43, the gear protection shell 45 is arranged on the motor 41 and fixedly connected with the motor 41, and the first gear 42 and the second gear 43 are meshed and arranged in the gear protection shell 45; one end of the screw 44 is rotatably connected with the gear protection shell 45, and the screw 44 is fixedly connected with the second gear 43.

In the present application, the motor 41 is mounted on the upper cover 311 and fixedly connected thereto, and is a power source of a transmission system, and provides power to drive the entire transmission assembly. The first gear 42 is sleeved on the output shaft of the motor 41. When the motor 41 is started, the output shaft of the motor 41 drives the first gear 42 to rotate. The second gear 43 is engaged with the first gear 42 and is sleeved on the screw 44. The meshing relationship of the first gear 42 and the second gear 43 enables the rotation of the motor 41 to be transmitted to the screw 44. This arrangement allows the screw 44 to be rotated by the second gear 43. The gear protection shell 45 is installed on the motor 41 and fixedly connected with the motor 41, protects gears from external interference and ensures smooth running of the gear system.

As shown in fig. 1 to 9, the scraping assembly includes a link 46 and a scraper 47, one end of the link 46 is screwed with the other end of the screw 44; the scraper 47 is disposed at the other end of the connecting rod 46, and the scraper 47 abuts against the inner wall of the filter screen 33.

In the present application, one end of the link 46 is screwed to the other end of the screw 44. This connection allows the link 46 to move as the motor 41 drives the screw 44 to rotate. A scraper 47 is mounted at the other end of the link 46. The scraper 47 is designed to contact the inner wall of the filter screen 33 and move along the inner wall of the filter screen 33 by the link 46. Under the action of the transmission assembly, the motor 41 drives the screw 44 in rotation through a gear system, which in turn causes the link 46 to move axially along the screw 44. This movement drives scraper 47 to scrape material residue along the inner wall of filter 33. In this way, the scraping assembly is able to effectively clean the filter screen 33 of blockages or accumulations, keeping the filter system smooth and clean.

As shown in fig. 1 to 9, the grinding device 2 includes a grinding barrel 21, a grinding rotating shaft 22, a driving device 23 and a grinding sheet 24, wherein a feed inlet 211 and a discharge pipe 212 are arranged on the grinding barrel 21; the grinding barrel 21 is arranged on the machine tool 1, and the grinding rotating shaft 22 is arranged in the grinding barrel 21; the driving device 23 is disposed on the machine tool 1, and is connected to the grinding shaft 22 to drive the grinding shaft 22 to rotate, the grinding sheets 24 are provided with a plurality of groups, and a plurality of groups of the grinding sheets 24 are disposed on the grinding shaft 22 in a ring.

In the present application, the material is first introduced into the grinding drum 21, and the driving means 23 is activated and drives the grinding shaft 22 to rotate. The grinding sheet 24 on the grinding spindle 22 moves at a high speed along with the rotation of the spindle, and is in direct contact with the material for grinding. The materials are crushed and ground by the grinding sheets 24 in the grinding barrel 21, and then discharged through the discharge pipe 212, thus completing the whole grinding process. The grinding sheet 24 is designed to effectively grind the material by being disposed around the grinding shaft 22.

As shown in fig. 1 to 9, the grinding barrel 21 further includes a first water inlet 213, a first water outlet 214, and a pressure gauge 215, wherein the first water inlet 213 is disposed below the grinding barrel 21 and is communicated with the grinding barrel 21, and the first water outlet 214 is disposed above the grinding barrel 21 and is communicated with the grinding barrel 21; the pressure gauge 215 is disposed on a side of the grinding drum 21 away from the driving device 23.

In the present application, the first water inlet 213 is located below the grinding drum 21, allowing the coolant to enter the inside of the grinding drum 21. The first water outlet 214 is provided above the grinding tub 21 so that the used cooling liquid and the carried away heat and debris can be discharged from the upper part of the tub. Since the hot air and debris generally rise, the discharge from above may more effectively remove these materials. A pressure gauge 215 is installed at one side of the grinding drum 21 for monitoring the pressure inside the grinding drum 21, ensuring that the cooling system operates under safe and effective pressure. The cooling liquid enters the grinding drum 21 from the first water inlet 213 to wet the grinding area, helping to cool down and clean the chips generated during the grinding process. Because the first water outlet 214 is disposed above the grinding drum 21, the cooling liquid can fill the whole grinding drum 21, so that the whole grinding device 2 can be effectively cooled and lowered, and then the cooling liquid is discharged from the first water outlet 214 with the debris residues.

As shown in fig. 1 to 9, the discharge pipe 212 is provided with a check valve 35, and the check valve 35 is disposed between the discharge cylinder 31 and the discharge pipe 212.

In the present application, the check valve 35 is provided between the discharge cylinder 31 and the discharge pipe 212 to ensure that the material flows only in one direction, to prevent reverse flow, and to also ensure that the cleaning liquid or the cleaning medium is prevented from flowing backward into the grinding tub 21 when the discharge bar 31 is cleaned.

In a specific embodiment, firstly, materials are ground through a grinding device, after finishing grinding, the materials are conveyed into a discharging device through a discharging pipe, secondly, the materials intercept residues which are insufficiently ground in an inner cavity of a discharging cylinder through a filter screen in the discharging device, the materials which are qualified in grinding smoothly reach an outer cavity of a grinding barrel and flow out through a discharging hole, then a cleaning assembly starts to work after finishing discharging, and after starting a motor, the power is transmitted to a second gear through a first gear, and then a screw fixedly connected with the second gear is driven to rotate. The rotation of the screw rod causes the connecting rod in threaded connection with the screw rod to do linear motion along the axis of the screw rod, and the linear motion of the connecting rod pushes the scraping plate to move along the inner wall of the filter screen, so that the scraping plate scrapes material residues on the inner wall. At the same time, liquid or cleaning medium enters the outer cavity of the discharging cylinder through the second water inlet, then flows from the outer cavity to the inner cavity, and simultaneously processes the filter screen to clean the waste attached to the filter screen. Then, the cleaning liquid can be discharged from the inner cavity through a second water outlet positioned at the bottom of the discharge cylinder, so that the cleaning liquid, the waste materials remained on the filter screen and the solid residues which are insufficiently ground can be discharged from the inside of the cylinder. Thus solving the problems that the parts inside the sand mill are generally difficult to clean, and the screen is easy to generate skinning paint slurry when the sand mill discharges, so that the screen is blocked and the screen is propped up.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (8)

1. A dynamic centrifugal sand mill, comprising:

a machine tool (1), a grinding device (2), a discharging device (3) and a cleaning device (4);

The grinding device (2) is arranged on the machine tool (1), and the discharging device (3) is connected with the grinding device (2);

The cleaning device (4) comprises a scraping assembly and a transmission assembly;

The scraping component is arranged in the discharging device (3), the transmission component is arranged on the discharging device (3), and the transmission component is connected with the scraping component.

2. The dynamic centrifugal sand mill according to claim 1, characterized in that the discharge device (3) comprises a discharge cylinder (31), an annular groove (32), a filter screen (33) and a discharge opening (34); the discharging cylinder (31) is connected with the output end of the grinding device (2); the annular groove (32) is positioned in the discharging cylinder (31) and is fixedly connected with the bottom surface of the discharging cylinder (31); the filter screen (33) is clamped in the annular groove (32) so as to divide the discharging cylinder (31) into an inner cavity and an outer cavity.

3. A dynamic centrifugal sand mill according to claim 2, characterized in that the discharge cylinder (31) comprises: an upper cover (311), a fixing assembly (312) and a cylinder (313); the upper cover (311) is connected with the cylinder body (313) through the fixing assembly (312).

4. A dynamic centrifugal sand mill according to claim 3, wherein the fixing assembly (312) comprises a fixing shaft (3121), a buckle (3122) and a fixing piece (3123), one end of the fixing shaft (3121) is in threaded connection with the cylinder (313), the buckle (3122) is sleeved on the fixing shaft (3121) and is in rotational connection with the fixing shaft (3121), and the fixing piece (3123) is in threaded connection with the other end of the fixing shaft (3121).

5. The dynamic centrifugal sand mill of claim 4 wherein the drive assembly comprises: a motor (41), a first gear (42), a second gear (43), a screw (44), and a gear protection shell (45); the motor (41) is arranged on the upper cover (311) and fixedly connected with the upper cover (311), the first gear (42) is sleeved on an output shaft of the motor (41), the second gear (43) is sleeved on the screw (44), the screw (44) is fixedly connected with the second gear (43), the gear protection shell (45) is arranged on the motor (41) and fixedly connected with the motor (41), and the first gear (42) and the second gear (43) are meshed and arranged in the gear protection shell (45); one end of the screw rod (44) is rotatably connected with the gear protection shell (45), and the screw rod (44) is fixedly connected with the second gear (43).

6. The dynamic centrifugal sand mill according to claim 5, wherein the scraping assembly comprises a connecting rod (46) and a scraper (47); one end of the connecting rod (46) is in threaded connection with the other end of the screw rod (44); the scraping plate (47) is arranged at the other end of the connecting rod (46), and the scraping plate (47) is abutted against the inner wall of the filter screen (33).

7. The dynamic centrifugal sand mill according to claim 6, characterized in that the grinding device (2) comprises a grinding drum (21), a grinding spindle (22), a drive device (23) and a grinding plate (24); a feed inlet (211) and a discharge pipe (212) are arranged on the grinding barrel (21); the grinding barrel (21) is arranged on the machine tool (1), and the grinding rotating shaft (22) is arranged in the grinding barrel (21); the driving device (23) is arranged on the machine tool (1), is connected with the grinding rotating shaft (22) and is used for driving the grinding rotating shaft (22) to rotate, the grinding sheets (24) are provided with a plurality of groups, and a plurality of groups of the grinding sheets (24) are annularly arranged on the grinding rotating shaft (22).

8. A dynamic centrifugal sand mill according to claim 7, characterized in that the discharge pipe (212) is provided with a non-return valve (35).