CN109013008B

CN109013008B - Water based paint grinder

Info

Publication number: CN109013008B
Application number: CN201810891866.4A
Authority: CN
Inventors: 陆挚译
Original assignee: Hangzhou Disheng Coating Co Ltd
Current assignee: Hangzhou Disheng coating Co., Ltd
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2020-10-30
Anticipated expiration: 2038-08-07
Also published as: CN109013008A

Abstract

The invention belongs to the technical field of grinding equipment, and particularly relates to a water-based paint grinding device which comprises a cylinder body; the grinding device also comprises a hollow shaft, an upper grinding disc, a lower grinding disc, a collecting box and a driving unit; an upper grinding disc and a lower grinding disc are arranged inside the cylinder body; the upper grinding disc is positioned above the lower grinding disc; the lower grinding disc is connected with the driving unit, and the driving unit is used for driving the lower grinding disc to be matched with the upper grinding disc for grinding. The grinding balls are used for primarily crushing the water-based paint, then the driving unit drives the lower grinding disc to move up and down and left and right, and the upper grinding disc and the lower grinding disc are matched with each other to fully grind the water-based paint, so that the grinding efficiency of the water-based paint is improved; meanwhile, the water-based paint is cleaned from the first grinding disc to prevent the influence on the grinding of the water-based paint in the later period, so that the grinding effect of the water-based paint is improved.

Description

Water based paint grinder

Technical Field

The invention belongs to the technical field of grinding equipment, and particularly relates to a water-based paint grinding device.

Background

In the production and preparation process of the high-molecular water-based paint, the grinding of the paint is an essential important process. In the prior art, when the paint is ground, the paint is put into a grinding barrel with a grinding medium for grinding; however, the existing grinding mode has the following defects: the grinding medium is easy to wear, the service life is short, and the grinding medium cannot continuously work for a long time; because do not carry out preliminary crushing to coating when the feeding, it is great to lead to some coating particles that get into to grind the intracavity, is unfavorable for fully grinding the coating, therefore the coating quality of grinding out is also relatively poor.

The technical scheme of the water-based paint grinding device also appears in the prior art, and as disclosed in a Chinese patent with application number 2017208239467, the device comprises a device main body, wherein the lower end of the device main body is provided with a supporting seat, a grinding cavity is arranged in the device main body, a feeding hole is arranged above the grinding cavity, a discharging hole is arranged on one side of the lower end of the grinding cavity, two crushing rollers are symmetrically arranged at the upper end of the grinding cavity, a stirring rod is arranged below the crushing rollers and positioned in the middle of the grinding cavity, the lower end of the stirring rod penetrates through the side wall of the grinding cavity and is connected with a motor, the motor is fixedly arranged on a mounting plate at the lower end of the device main body, an arc-shaped lug is fixedly arranged at the top end of the stirring rod, the lower end of the arc-shaped lug is connected with a stirring plate through a telescopic pipe, the telescopic pipe is sleeved outside the stirring rod, the utility model discloses a crushing gear, including dead slot, puddler, connecting axle and fly leaf, be provided with a plurality of crushing gear in the dead slot, the lateral wall of dead slot passes through the connecting axle and smashes gear connection, the lower extreme of puddler sets up to reciprocal lead screw, and the slider has been cup jointed in the outside of reciprocal lead screw, and the upper end of slider is passed through the connecting piece and is connected with the lower extreme of fly leaf, be provided with the filter screen on the fly leaf.

This technical scheme's a polymer water based paint raw materials grinder through carrying out preliminary crushing to coating, reduces the particle diameter of coating for coating can grind fully in grinding the intracavity, improves the quality of coating. However, the grinding of the water-based paint in the technical scheme is insufficient, and the ground water-based paint is easy to adhere to a grinding disc, so that the grinding effect is influenced; so that the technical solution is limited.

Disclosure of Invention

In order to make up for the defects of the prior art, the water-based paint grinding device provided by the invention primarily crushes the water-based paint through the crushing balls, so that the large-diameter particle water-based paint is reduced, then the driving unit drives the lower grinding disc to move up and down and left and right, and the upper grinding disc and the lower grinding disc are matched with each other to sufficiently grind the water-based paint, so that the grinding efficiency of the water-based paint is improved; meanwhile, the sleeve acts on the first grinding disc to shake, so that on one hand, the water-based paint is sufficiently ground, and the grinding efficiency of the water-based paint is improved; on the other hand, the water-based paint is cleaned from the first grinding disc to prevent the influence on the grinding of the water-based paint in the later period, so that the grinding effect of the water-based paint is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a water-based paint grinding device, which comprises a cylinder body; the grinding device also comprises a hollow shaft, an upper grinding disc, a lower grinding disc, a collecting box and a driving unit; an upper grinding disc and a lower grinding disc are arranged inside the cylinder body; the upper grinding disc is positioned above the lower grinding disc, and a first discharge hole is formed in the bottom of the upper grinding disc; one end of the hollow shaft is fixedly connected with the upper grinding disc, the other end of the hollow shaft extends out of the outer wall of the barrel body to be rotatably connected with the motor, and a feed inlet is formed in the outer ring of the other end of the hollow shaft; the first discharge hole is communicated with the hollow shaft; the lower grinding disc is connected with the driving unit, and the driving unit is used for driving the lower grinding disc to be matched with the upper grinding disc for grinding; the collecting box is placed at the bottom of the cylinder body and used for collecting the ground water-based paint; wherein,

the driving unit comprises a rotating wheel, a first rod, a second rod, a third rod, a fourth rod and a mounting block; the rotating wheel is rotationally connected with a driving motor, and the driving motor is fixed on the side wall of the cylinder body; one end of the first rod is hinged to the rotating wheel, and the other end of the first rod is hinged to the second rod; the number of the mounting blocks is three, and the mounting blocks are fixedly mounted on the lower grinding disc; the third rod is positioned behind the upper grinding disc; the second rod is an L-shaped rod and is symmetrically installed, one end of the second rod is hinged to the side wall of the cylinder, the other end of the second rod is hinged to the third rod, and one end, which is flush with the hinged point of the side wall of the cylinder, of the second rod slides left and right on the installation block; one end of the fourth rod is hinged to the third rod, the other end of the fourth rod slides up and down on the mounting block, and the middle of the fourth rod is hinged to the side wall of the barrel. The water-based paint is required to be ground in the preparation of the high-molecular water-based paint, the existing grinding method is that the water-based paint is placed in a lower grinding disc, a motor drives an upper grinding disc to rotate, the upper grinding disc and the lower grinding disc are matched to grind the water-based paint, and the grinding is completely completed by rotation, so that the ground water-based paint has poor grinding effect, and the subsequent preparation of the high-molecular water-based paint is influenced; before grinding, the driving motor drives the hollow shaft to rotate, and simultaneously, the water-based paint is fed from the feeding port and falls onto the lower grinding disc through the first discharging port; at the moment, the driving motor drives the rotating wheel to rotate anticlockwise, the second rod and the fourth rod push the lower grinding disc, the left rod and the right rod push the second rod and the right rod to enable the lower grinding disc to move left and right, the upper grinding disc is attached to the lower grinding disc, and meanwhile, the fourth rod pushes the lower grinding disc to move upwards and move in balance; the lower grinding disc is pulled, so that on one hand, the water-based paint is completely spread on the lower grinding disc, the contact area of the water-based paint and the upper grinding disc is increased, and the grinding efficiency is increased; on the other hand, the water-based paint with large-diameter particles is crushed, so that the grinding efficiency of the water-based paint is improved; the hollow shaft grinds the spread water-based paint by the rotating force generated by the upper grinding disc; the water-based paint is fully ground by matching the upper grinding disc and the lower grinding disc, so that the grinding efficiency of the water-based paint is improved, and the subsequent preparation effect of the high-molecular water-based paint is improved.

Preferably, a hollow cavity is arranged inside the upper grinding disc; the hollow cavity is provided with a crushing unit; the crushing unit comprises a crushing ball and a fixing plate; the fixed plates are symmetrically and obliquely fixed on the inner wall of the upper grinding disc, and divide the hollow chamber into two parts; the crushing ball is fixedly connected to the fixed plate through a spring, and the crushing ball is uniformly distributed on the fixed plate. The water-based paint has a plurality of large-diameter particles before grinding, and when the water-based paint of the large-diameter particles passes through the grinding of the upper grinding disc and the lower grinding disc, the water-based paint of the large-diameter particles influences the grinding efficiency; according to the invention, the water-based paint is primarily crushed before falling into the lower grinding disc, the water-based paint is conveyed into the hollow shaft from the feeding port, and meanwhile, the hollow shaft is driven by the motor to rotate, so that the crushing balls fixed on the fixing plate rotate, the contact area between the crushing balls and the large-diameter particle water-based paint is increased in the rotation of the crushing balls, and the crushing balls fully impact the large-diameter water-based paint, so that the large-diameter water-based paint is primarily crushed, and the subsequent grinding efficiency of the water-based paint is further improved.

Preferably, a first groove is formed in the crushing ball; broken pieces are arranged in the first groove; the two sides of the broken block are fixedly connected to the first groove through springs, one end of the broken block slides in the first groove, and the cross section of the other end of the broken block is triangular. When the crushing ball collides the large-diameter particle water-based paint, the crushing ball is extremely difficult to crush some large-diameter water-based paints, so that the crushing effect is influenced; according to the invention, the broken blocks are arranged in the broken ball, and when the large-diameter particle water-based paint contacts the broken blocks, the large-diameter particle water-based paint is broken through the mutual cooperation of the broken blocks, so that the breaking efficiency and effect of the water-based paint are improved.

Preferably, the bottom of the upper grinding disc is provided with a control unit; the control unit is used for controlling the opening and closing of the first discharge hole and comprises an electromagnet, a telescopic rod and a blocking block; one end of the telescopic rod is fixedly connected with the electromagnet, and the other end of the telescopic rod is fixedly connected with the blocking block; the telescopic rod is made of a magnetic material; the electromagnet is fixedly arranged on the inner wall of the upper grinding disc; the stop block is positioned above the first discharge hole. In the primary crushing of the large-diameter particle water-based paint, a first discharge hole is not blocked in the prior art, so that the large-diameter particle water-based paint is not crushed fully; according to the invention, the control unit is arranged, when the electromagnet is not electrified, the first discharge hole is blocked by the blocking block, and the large-diameter particle water-based paint is fully crushed in the hollow cavity, so that the crushing effect of the water-based paint is improved; after the water-based paint is sufficiently crushed, the electromagnet is electrified, the telescopic rod drives the blocking block to move to one side close to the electromagnet, the first discharge hole is opened, and the crushed water-based paint falls into the lower grinding disc to be sufficiently ground, so that the grinding efficiency of the water-based paint is improved.

Preferably, the lower grinding disc comprises a first grinding disc, an elastic sleeve and a second grinding disc; the first grinding disc is positioned above the second grinding disc and is connected with the second grinding disc through an elastic sleeve; a group of first holes are formed in the first grinding disc; a group of second holes are formed in the second grinding disc, the top of the second grinding disc is connected with a driving unit, and the driving unit drives the first grinding disc to be matched with the upper grinding disc to grind. The water-based paint is collected after being ground, in the prior art, the ground water-based paint is adhered to the first hole and the second hole, and the first hole and the second hole are easily blocked after long-time accumulation, so that the later-stage water-based paint collection efficiency is influenced; the lower grinding disc is divided into a plurality of layers and connected through the elastic sleeve; the elastic sleeve is arranged, on one hand, the water-based paint is prevented from escaping from the two sides of the first grinding disc and the second grinding disc, so that the ground water-based paint is fully collected, and the collection efficiency of the water-based paint is improved; on the other hand, when the first grinding disc is matched with the upper grinding disc to grind the water-based paint, the first grinding disc shakes, and the shaking enables the water-based paint to be sufficiently ground, so that the grinding efficiency of the water-based paint is improved; and the ground water-based paint is cleaned from the first grinding disc to prevent the influence on the grinding of the water-based paint in the later period, so that the grinding effect of the water-based paint is improved.

Preferably, a second groove is formed in the first grinding disc; the second groove is vertical to the first hole, and a first plate is arranged in the second groove; two ends of the first plate are fixedly connected to the second groove through springs, and a group of third holes are formed in the first plate; and the third hole and the first hole are staggered with each other. In the prior art, the water-based paint which is not fully ground falls from the first hole and is collected, so that the grinding effect of the water-based paint is influenced; according to the invention, the first plate is arranged, the first hole is blocked by the first plate before grinding, the first plate slides relative to the first grinding disc due to the inertia effect, the first hole is communicated with the third hole, and the ground water-based paint falls from the communicating hole, so that the grinding effect of the water-based paint is improved.

Preferably, the upper surface of the second grinding disc is provided with an arc groove, a grinding ball is arranged in the arc groove, and the arc groove and the grinding ball are matched for fine grinding of the water-based paint. The ground water-based paint falls onto the second grinding disc through the first hole and the third hole, and the grinding balls roll in the circular arc grooves by setting the circular arc grooves and the grinding balls in the process of driving the second grinding disc to move left and right by the driving unit, so that the water-based paint is finely ground by the grinding balls in the process of rolling, and the grinding effect of the water-based paint is improved.

The invention has the following beneficial effects:

1. according to the water-based paint grinding device, the driving unit is arranged and comprises the rotating wheel, the first rod, the second rod, the third rod, the fourth rod and the mounting block; the driving unit drives the lower grinding disc to move up and down and left and right, and the upper grinding disc and the lower grinding disc are matched with each other to fully grind the water-based paint, so that the grinding efficiency of the water-based paint is improved.

2. According to the water-based paint grinding device, the crushing unit is arranged and comprises the crushing ball and the fixing plate; the crushing ball is rotatory in hollow cavity, has increased the area of contact of crushing ball with major diameter granule water based paint for the crushing ball fully strikes major diameter water based paint, thereby makes major diameter water based paint carry out preliminary breakage, and then has improved subsequent water based paint's grinding efficiency.

3. According to the water-based paint grinding device, the control unit is arranged and comprises the electromagnet, the telescopic rod and the blocking block; when the electromagnet is not electrified, the blocking block blocks the first discharge hole, and the large-diameter particle water-based paint is fully crushed in the hollow cavity, so that the crushing effect of the water-based paint is improved; the electromagnet is electrified, the telescopic rod drives the blocking block to move to one side close to the electromagnet, the first discharge hole is opened, and the crushed water-based paint falls into the lower grinding disc to be sufficiently ground, so that the grinding efficiency of the water-based paint is improved.

4. According to the water-based paint grinding device, the first grinding disc and the second grinding disc are connected through the elastic sleeve; on one hand, the water-based paint in shaking is fully ground, so that the grinding efficiency of the water-based paint is improved; on the other hand, the ground water-based paint is cleaned from the first grinding disc to prevent the influence on the grinding of the later water-based paint, so that the grinding effect of the water-based paint is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

FIG. 5 is a schematic view of the structure of the driving unit;

in the figure: barrel 1, collecting box 11, hollow shaft 2, feed inlet 21, upper grinding disc 3, first discharge gate 31, hollow chamber 32, lower grinding disc 4, grinding disc 41, groove 411, plate 412, hole 413, hole 414, elastic sleeve 42, grinding disc 43, hole 431, circular arc recess 432, grinding ball 433, drive unit 5, runner 51, rod 52, rod 53, rod 54, rod 55, mounting block 56, crushing unit 6, crushing ball 61, groove 611, crushing block 612, fixed plate 62, control unit 7, electromagnet 71, telescopic rod 72, stop block 73.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the water paint grinding apparatus according to the present invention includes a barrel 1; the grinding device also comprises a hollow shaft 2, an upper grinding disc 3, a lower grinding disc 4, a collecting box 11 and a driving unit 5; an upper grinding disc 3 and a lower grinding disc 4 are arranged inside the cylinder body 1; the upper grinding disc 3 is positioned above the lower grinding disc 4, and a first discharge hole 31 is formed in the bottom of the upper grinding disc 3; one end of the hollow shaft 2 is fixedly connected with the upper grinding disc 3, the other end of the hollow shaft 2 extends out of the outer wall of the barrel 1 to be rotatably connected with the motor, and a feed inlet 21 is formed in the outer ring of the other end of the hollow shaft 2; the first discharge hole 31 is communicated with the hollow shaft 2; the lower grinding disc 4 is connected with the driving unit 5, and the driving unit 5 is used for driving the lower grinding disc 4 to be matched with the upper grinding disc 3 for grinding; the collecting box 11 is placed at the bottom of the cylinder body 1, and the collecting box 11 is used for collecting the ground water-based paint; wherein,

the driving unit 5 comprises a rotating wheel 51, a first rod 52, a second rod 53, a third rod 54, a fourth rod 55 and a mounting block 56; the rotating wheel 51 is rotationally connected with a driving motor, and the driving motor is fixed on the side wall of the cylinder body; one end of the first rod 52 is hinged to the rotating wheel 51, and the other end of the first rod 52 is hinged to the second rod 53; the number of the mounting blocks 56 is three, and the mounting blocks 56 are fixedly mounted on the lower grinding disc 4; the third rod 54 is positioned behind the upper grinding disc 3; the second rod 53 is an L-shaped rod, the second rod 53 is symmetrically installed, one end of the second rod 53 is hinged to the side wall of the cylinder body 1, the other end of the second rod 53 is hinged to the third rod 54, and one end, which is flush with the hinged point of the side wall of the cylinder body 1, of the second rod 53 slides left and right on the installation block 56; one end of the fourth rod 55 is hinged to the third rod 54, the other end of the fourth rod 55 slides up and down on the mounting block 56, and the middle part of the fourth rod 55 is hinged to the side wall of the barrel 1. The water-based paint is required to be ground in the preparation of the high-molecular water-based paint, the existing grinding method is that the water-based paint is placed in a lower grinding disc 4, a motor drives an upper grinding disc 3 to rotate, the upper grinding disc 3 and the lower grinding disc 4 are matched to grind the water-based paint, and the grinding is completely completed by rotating, so that the ground water-based paint has poor grinding effect, and the subsequent preparation of the high-molecular water-based paint is influenced; before grinding, a driving motor drives a hollow shaft 2 to rotate, and simultaneously, water-based paint is fed from a feeding port and falls onto a lower grinding disc 4 through a first discharging port 31; at the moment, the driving motor drives the rotating wheel 51 to rotate anticlockwise, the second rod 53 and the fourth rod 55 push the lower grinding disc 4, the left second rod 53 and the right second rod 53 push the lower grinding disc 4 to move left and right, the upper grinding disc 3 is attached to the lower grinding disc 4, and meanwhile, the fourth rod 55 pushes the lower grinding disc 4 to move upwards and move in balance; the lower grinding disc 4 is pulled, so that on one hand, the water-based paint is completely spread on the lower grinding disc 4, the contact area between the water-based paint and the upper grinding disc 3 is increased, and the grinding efficiency is further improved; on the other hand, the water-based paint with large-diameter particles is crushed, so that the grinding efficiency of the water-based paint is improved; the hollow shaft 2 grinds the spread water-based paint by the rotating force generated by the upper grinding disc 3; the water-based paint is fully ground by matching the upper grinding disc 3 and the lower grinding disc 4, so that the grinding efficiency of the water-based paint is improved, and the subsequent preparation effect of the high-molecular water-based paint is improved.

As an embodiment of the present invention, the upper grinding disc 3 is provided with a hollow chamber 32 inside; the hollow chamber 32 is provided with a crushing unit 6; the crushing unit 6 comprises a crushing ball 61 and a fixed plate 62; the fixed plates 62 are symmetrically and obliquely fixed on the inner wall of the upper grinding disc 3, and the hollow chamber 32 is divided into two parts by the fixed plates 62; the crushing balls 61 are fixed on the fixed plate 62 through springs, and the crushing balls 61 are uniformly distributed on the fixed plate 62. The water-based paint has a plurality of large-diameter particles before grinding, and when the water-based paint of the large-diameter particles passes through the grinding of the upper grinding disc 3 and the lower grinding disc 4, the water-based paint of the large-diameter particles influences the grinding efficiency; according to the invention, the water-based paint is primarily crushed before falling into the lower grinding disc 4, the water-based paint is conveyed into the hollow shaft 2 from the feeding port, and meanwhile, the hollow shaft 2 is driven by the motor to rotate, so that the crushing balls 61 fixed on the fixing plate 62 rotate, the contact area between the crushing balls 61 and the large-diameter particle water-based paint is increased during the rotation of the crushing balls 61, and the crushing balls 61 fully impact the large-diameter water-based paint, so that the large-diameter water-based paint is primarily crushed, and the subsequent grinding efficiency of the water-based paint is further improved.

In one embodiment of the present invention, a first groove 611 is formed inside the crushing ball 61; broken pieces 612 are arranged in the first groove 611; two sides of the crushing block 612 are fixedly connected to the first groove 611 through springs, one end of the crushing block 612 slides in the first groove 611, and the cross section of the other end of the crushing block 612 is triangular. When the crushing ball 61 collides with the large-diameter particle water-based paint, the crushing ball is extremely difficult to crush some large-diameter water-based paints, so that the crushing effect is influenced; according to the invention, the broken blocks are arranged in the broken ball 61, and when the large-diameter particle water-based paint contacts the broken blocks, the mutual cooperation among the broken blocks enables the large-diameter particle water-based paint to be broken, so that the breaking efficiency and effect of the water-based paint are improved.

As an embodiment of the present invention, the bottom of the upper grinding disc 3 is provided with a control unit 7; the control unit 7 is used for controlling the opening and closing of the first discharge hole 31, and the control unit 7 comprises an electromagnet 71, an expansion link 72 and a blocking block 73; one end of the telescopic rod 72 is fixedly connected with the electromagnet 71, and the other end of the telescopic rod 72 is fixedly connected with the stop block 73; the telescopic rod 72 is made of a magnetic material; the electromagnet 71 is fixedly arranged on the inner wall of the upper grinding disc 3; the blocking block 73 is positioned above the first discharge hole 31. In the primary crushing of the large-diameter particle water-based paint, the first discharge port 31 is not blocked in the prior art, so that the large-diameter particle water-based paint is not crushed fully; according to the invention, by arranging the control unit 7, when the electromagnet 71 is not electrified, the first discharge hole 31 is blocked by the blocking block 73, and the large-diameter particle water-based paint is fully crushed in the hollow cavity 32, so that the crushing effect of the water-based paint is improved; after the water-based paint is sufficiently crushed, the electromagnet 71 is electrified, the telescopic rod 72 drives the blocking block 73 to move towards one side close to the electromagnet 71, the first discharge hole 31 is opened, and the crushed water-based paint falls into the lower grinding disc 4 for sufficient grinding, so that the grinding efficiency of the water-based paint is improved.

As an embodiment of the present invention, the lower grinding disc 4 includes a first grinding disc 41, an elastic sleeve 42, and a second grinding disc 43; the first grinding disc 41 is positioned above the second grinding disc 43, and the first grinding disc 41 is connected with the second grinding disc 43 through an elastic sleeve 42; a group of first holes 414 are formed on the first grinding disc 41; a group of second holes 431 is formed in the second grinding disc 43, the top of the second grinding disc 43 is connected with the driving unit 5, and the driving unit 5 drives the first grinding disc 41 to be matched with the upper grinding disc 3 for grinding. The water-based paint is collected after being ground, in the prior art, the ground water-based paint is adhered to the first hole 414 and the second hole 431, and the first hole 414 and the second hole 431 are easily blocked due to long-time accumulation, so that the collection efficiency of the water-based paint at the later stage is influenced; the lower grinding disc 4 is divided into a plurality of layers and connected through the elastic sleeve 42; the elastic sleeve 42 is arranged, on one hand, the water-based paint is prevented from escaping from the two sides of the first grinding disc 41 and the second grinding disc 43, so that the ground water-based paint is sufficiently collected, and the collection efficiency of the water-based paint is improved; on the other hand, when the first grinding disc 41 is matched with the upper grinding disc 3 for grinding the water-based paint, the first grinding disc 41 shakes, so that the water-based paint is sufficiently ground, and the grinding efficiency of the water-based paint is improved; and the ground water-based paint is cleaned from the first grinding disc 41 to prevent the influence on the grinding of the water-based paint in the later period, so that the grinding effect of the water-based paint is improved.

As an embodiment of the present invention, a second groove 411 is formed on the first grinding disk 41; the second groove 411 is perpendicular to the first hole 414, and a first plate 412 is arranged in the second groove 411; two ends of the first plate 412 are fixedly connected to the second groove 411 through springs, and a group of third holes 413 are formed in the first plate 412; the third hole 413 and the first hole 414 are staggered. In the prior art, the water-based paint which is not fully ground falls from the first hole 414 and is collected, so that the grinding effect of the water-based paint is influenced; according to the invention, the first plate 412 is arranged, the first plate 412 blocks the first hole 414 before grinding, the first plate 412 slides relative to the first grinding disc 41 due to inertia, the first hole 414 is communicated with the third hole 413, and the ground water-based paint falls from the communicating hole, so that the grinding effect of the water-based paint is improved.

In an embodiment of the present invention, the second grinding disk 43 has a circular arc groove 432 on the upper surface thereof, the circular arc groove 432 has a grinding ball 433 disposed therein, and the circular arc groove 432 and the grinding ball 433 are used in combination for fine grinding of the water-based paint. The ground water-based paint falls onto the second grinding disc 43 through the first hole 414 and the third hole 413, the driving unit 5 drives the second grinding disc 43 to move left and right by arranging the arc groove 432 and the grinding balls 433, the grinding balls 433 roll in the arc groove 432 due to centrifugal force, and the grinding balls 433 finely grind the water-based paint in the rolling process, so that the grinding effect of the water-based paint is improved.

When the device works, the motor drives the hollow shaft 2 to rotate, simultaneously, the water-based paint is fed from the feeding port, enters the hollow chamber 32, the control unit 7 is adjusted, the blocking block 73 blocks the first discharging port 31, the crushing unit 6 fully crushes the water-based paint with large-diameter particles, the control unit 7 is adjusted after crushing, the blocking block 73 is separated from the first discharging port 31, and the water-based paint falls onto the lower grinding disc 4 through the first discharging port 31; at this time, the driving unit 5 is driven, the driving unit 5 drives the first grinding disc 41 to be matched with the upper grinding disc 3 for grinding, the first plate 412 blocks the first hole 414 during grinding so that the water-based paint can be sufficiently ground, and meanwhile, the first grinding disc 41 shakes under the action of the sleeve, so that on one hand, the water-based paint can be sufficiently ground, and the grinding efficiency of the water-based paint can be improved; on the other hand, the ground water-based paint is cleaned from the grinding disc No. I41, so that the grinding of the water-based paint in the later period is prevented from being influenced, and the grinding effect of the water-based paint is improved; the ground aqueous coating is collected by a collection tank 11.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.

Claims

1. An aqueous paint grinding apparatus includes a barrel (1); the method is characterized in that: the grinding device also comprises a hollow shaft (2), an upper grinding disc (3), a lower grinding disc (4), a collecting box (11) and a driving unit (5); an upper grinding disc (3) and a lower grinding disc (4) are arranged in the cylinder body (1); the upper grinding disc (3) is positioned above the lower grinding disc (4), and a first discharge hole (31) is formed in the bottom of the upper grinding disc (3); one end of the hollow shaft (2) is fixedly connected with the upper grinding disc (3), the other end of the hollow shaft (2) extends out of the outer wall of the barrel body (1) to be rotatably connected with the motor, and a feed inlet (21) is formed in the outer ring of the other end of the hollow shaft (2); the first discharge hole (31) is communicated with the hollow shaft (2); the lower grinding disc (4) is connected with the driving unit (5), and the driving unit (5) is used for driving the lower grinding disc (4) to be matched with the upper grinding disc (3) for grinding; the collecting box (11) is placed at the bottom of the barrel body (1), and the collecting box (11) is used for collecting the ground water-based paint; the driving unit (5) comprises a rotating wheel (51), a first rod (52), a second rod (53), a third rod (54), a fourth rod (55) and a mounting block (56); the rotating wheel (51) is rotationally connected with a driving motor, and the driving motor is fixed on the side wall of the cylinder body; one end of the first rod (52) is hinged to the rotating wheel (51), and the other end of the first rod (52) is hinged to the second rod (53); the number of the mounting blocks (56) is three, and the mounting blocks (56) are fixedly mounted on the lower grinding disc (4); the third rod (54) is positioned behind the upper grinding disc (3); the second rod (53) is an L-shaped rod, the second rod (53) is symmetrically installed, one end of the second rod (53) is hinged to the side wall of the cylinder body (1), the other end of the second rod (53) is hinged to the third rod (54), and one end, which is flush with the hinge point of the side wall of the cylinder body (1), of the second rod (53) slides left and right on the installation block (56); one end of the fourth rod (55) is hinged to the third rod (54), the other end of the fourth rod (55) slides up and down on the mounting block (56), and the middle part of the fourth rod (55) is hinged to the side wall of the barrel body (1);

a hollow cavity (32) is arranged in the upper grinding disc (3); the hollow chamber (32) is provided with a crushing unit (6); the crushing unit (6) comprises a crushing ball (61) and a fixed plate (62); the fixed plates (62) are symmetrically and obliquely fixed on the inner wall of the upper grinding disc (3), and the hollow cavity (32) is divided into two parts by the fixed plates (62); the crushing balls (61) are fixedly connected to the fixed plate (62) through springs, and the crushing balls (61) are uniformly distributed on the fixed plate (62);

a first groove (611) is formed in the crushing ball (61); broken pieces (612) are arranged in the first groove (611); two sides of the broken block (612) are fixedly connected to the first groove (611) through springs, one end of the broken block (612) slides in the first groove (611), and the cross section of the other end of the broken block (612) is triangular;

the bottom of the upper grinding disc (3) is provided with a control unit (7); the control unit (7) is used for controlling the opening and closing of the first discharge hole (31), and the control unit (7) comprises an electromagnet (71), an expansion rod (72) and a blocking block (73); one end of the telescopic rod (72) is fixedly connected with the electromagnet (71), and the other end of the telescopic rod (72) is fixedly connected with the blocking block (73); the telescopic rod (72) is made of magnetic material; the electromagnet (71) is fixedly arranged on the inner wall of the upper grinding disc (3); the blocking block (73) is positioned above the first discharge hole (31);

the lower grinding disc (4) comprises a first grinding disc (41), an elastic sleeve (42) and a second grinding disc (43); the first grinding disc (41) is positioned above the second grinding disc (43), and the first grinding disc (41) is connected with the second grinding disc (43) through an elastic sleeve (42); a group of first holes (414) are formed in the first grinding disc (41); a group of second holes (431) are formed in the second grinding disc (43), the top of the second grinding disc (43) is connected with the driving unit (5), and the driving unit (5) drives the first grinding disc (41) to be matched with the upper grinding disc (3) for grinding;

a second groove (411) is formed in the first grinding disc (41); the second groove (411) is perpendicular to the first hole (414), and a first plate (412) is arranged in the second groove (411); two ends of the first plate (412) are fixedly connected to the second groove (411) through springs, and a group of third holes (413) are formed in the first plate (412); the third hole (413) and the first hole (414) are staggered with each other;

the upper surface of No. two abrasive disc (43) is equipped with circular arc recess (432), be equipped with grinding ball (433) in circular arc recess (432), circular arc recess (432) and grinding ball (433) cooperation are used for the fine grinding of waterborne coating.