CN109201268B - A kind of production method of latex paint - Google Patents

Abstract

The invention belongs to the technical field of paint production, and particularly relates to a production method of emulsion paint, which adopts a grinding device, wherein the grinding device 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

A kind of production method of latex paint

technical field

The invention belongs to the technical field of paint production, in particular to a production method of latex paint.

Background technique

Latex paint is a common name for latex paint. It was born in the middle and late 1970s. It is a large class of synthetic resin emulsion paint represented by acrylate copolymer emulsion. Latex paint is a water-dispersible paint, which is a paint made of synthetic resin emulsion as the base material, and the filler is ground and dispersed, and then various additives are added.

In the production and preparation of polymer waterborne coatings, grinding the coatings is an essential and 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 method has the following defects: the grinding medium is easily worn out, the service life is short, and it cannot be used for a long time. Continue to work; because the paint is not initially pulverized during feeding, some paint particles entering the grinding chamber are large, which is not conducive to fully grinding the paint, so the quality of the ground paint is also relatively poor.

There is also a technical solution for a production method of latex paint in the prior art. For example, a Chinese patent with an application number of 2017208239467 discloses a polymer water-based paint raw material grinding device, including a device main body, and a lower end of the device main body. A support seat is provided, a grinding chamber is arranged inside the main body of the device, a feeding port is provided above the grinding chamber, a discharging port is provided on one side of the lower end of the grinding chamber, and two crushing rollers are symmetrically arranged on the upper end of the grinding chamber. A stirring rod is arranged below the pulverizing roller. The stirring rod is located in the middle of the grinding chamber. The lower end of the stirring rod penetrates the side wall of the grinding chamber and is connected to the motor. An arc-shaped bump is fixedly installed at the top of the agitator, and the lower end of the arc-shaped bump is connected to the stirring plate through a telescopic tube, and the telescopic tube is sleeved on the outside of the stirring rod. There are several pulverizing gears, the side wall of the empty groove is connected with the pulverizing gear through the connecting shaft, the lower end of the stirring rod is set as a reciprocating screw, the outer side of the reciprocating screw is sleeved with a slider, and the upper end of the slider is connected with the movable piece through the connecting piece. The lower end of the plate is connected, the movable plate is provided with a filter screen, and the filter screen is located below the crushing gear.

The technical solution is a raw material grinding device for polymer water-based paint, which reduces the particle size of the paint by preliminarily pulverizing the paint, so that the paint can be fully ground in the grinding chamber, and the quality of the paint is improved. However, the grinding of the water-based paint in this technical solution is not sufficient, and the ground water-based paint is easily attached to the grinding disc, thereby affecting the grinding effect, which limits the technical solution.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention proposes a method for producing latex paint, which adopts a grinding device, and the grinding device preliminarily crushes the water-based paint through a crushing ball, thereby reducing the large-diameter particles of the water-based paint, and then the drive unit drives the The lower grinding disc moves up and down as well as left and right. The upper grinding disc and the lower grinding disc cooperate with each other to fully grind the water-based paint, thereby improving the grinding efficiency of the water-based paint. The paint is fully ground to improve the grinding efficiency of the water-based paint; on the other hand, the water-based paint is cleaned from the No. 1 grinding disc to prevent the subsequent grinding of the water-based paint, thereby improving the grinding effect of the water-based paint.

The technical scheme adopted by the present invention to solve the technical problem is: a production method of a latex paint of the present invention, which comprises the following steps:

Step 1: put the granular powder into the grinding device for grinding to obtain the grinding powder;

Step 2: Put the ionized water, dispersing agent, wetting agent, leveling agent, antiseptic and antifungal agent, film-forming aid, buffer, whitening agent, defoamer aid into the mixing device for mixing to obtain mixture;

Step 3: put the grinding powder in Step 1, the mixed solution in Step 2 and the aqueous solution of hydroxyethyl cellulose into a disperser for high-speed dispersion to obtain white pulp;

Step 4: add the white paste in step 3 into the emulsion at a slow speed, and stir at a low speed to obtain a primary coating;

Step 5: adding the thickener to the primary coating in step 4, adjusting the viscosity of the primary coating, and adjusting the color and depth of the primary coating with color paste to obtain a finished latex paint;

Wherein, a grinding device is used in step 1, and the grinding device includes a cylindrical body; it also includes a hollow shaft, an upper grinding disc, a lower grinding disc, a collection box and a drive unit; an upper grinding disc and a lower grinding disc are arranged inside the cylindrical body; the upper grinding disc is located in the lower grinding disc Above, the bottom of the upper grinding disc is provided with a No. 1 discharge port; one end of the hollow shaft is fixedly connected to the upper grinding disc, the other end of the hollow shaft extends out of the outer wall of the cylinder and is connected to the motor for rotation, and the outer ring of the other end of the hollow shaft is provided with an inlet and outlet. The No. 1 discharge port is communicated with the hollow shaft; the lower grinding disc is connected with the driving unit, and the driving unit is used to drive the lower grinding disc to cooperate with the upper grinding disc for grinding; the collection box is placed at the bottom of the cylinder, and the collection box is used for grinding The collection after grinding of water-based paint; wherein,

The driving unit includes a rotating wheel, a No. 1 rod, a No. 2 rod, a No. 3 rod, a No. 4 rod, and a mounting block; the rotating wheel is rotatably connected with the driving motor, and the driving motor is fixed on the side wall of the cylinder; One end of the number rod is hinged on the rotating wheel, and the other end of the No. 1 rod is hinged on the No. 2 rod; the number of the mounting blocks is three, and the mounting blocks are fixedly installed on the lower grinding disc; the No. 3 rod is located at the rear of the upper grinding disc; The No. 2 rod is an L-shaped rod, the No. 2 rod is installed symmetrically, one end of the No. 2 rod is hinged on the side wall of the cylinder body, the other end of the No. 2 rod is hinged on the No. 3 rod, and the No. 2 rod is hinged with the side wall of the cylinder body. The flush end slides left and right on the installation block; one end of the No. 4 rod is hinged on the No. 3 rod, the other end of the No. 4 rod slides up and down on the installation block, and the middle of the No. 4 rod is hinged on the side wall of the cylinder. . In the preparation of polymer water-based coatings, the water-based coatings need to be ground. In the existing grinding, the water-based coatings are placed in the lower grinding disc, the motor drives the upper grinding disc to rotate, and the upper grinding disc cooperates with the lower grinding disc to grind the water-based coating. The grinding is completely dependent on rotation. The grinding effect of the water-based paint ground in this way is not good, thus affecting the preparation of the subsequent polymer water-based paint; before the grinding of the present invention, the driving motor drives the hollow shaft to rotate, and at the same time, the water-based paint is put in from the feeding port, and the water-based paint passes through. The No. 1 discharge port falls on the lower grinding disc; at this time, the rotating wheel is driven to rotate counterclockwise by the driving motor, the No. 2 and No. 4 rods push the lower grinding disc, and the left and right No. 2 rods push, so that the lower grinding disc moves left and right, The upper grinding disc is attached to the lower grinding disc, and at the same time, the No. 4 rod pushes the lower grinding disc to move upwards and move in a balanced manner; the lower grinding disc is pulled, on the one hand, the water-based coating is completely spread on the lower grinding disc, thereby improving the water-based coating and the upper grinding disc. The contact area is increased, thereby improving the grinding efficiency; on the other hand, the large-diameter water-based paint is crushed, thereby improving the grinding efficiency of the water-based paint; the rotating force generated by the hollow shaft to the upper grinding disc grinds the spread water-based paint; Through the cooperation of the upper grinding disc and the lower grinding disc, the water-based paint is sufficiently ground, thereby improving the grinding efficiency of the water-based paint, and further improving the subsequent preparation effect of the polymer water-based paint.

Preferably, a hollow chamber is provided inside the upper grinding disc; the hollow chamber is provided with a crushing unit; the crushing unit includes a crushing ball and a fixing plate; the fixing plate is symmetrically and obliquely fixed on the inner wall of the upper grinding disc, The fixing plate divides the hollow chamber into two parts; the crushing balls are fixedly connected to the fixing plate by springs, and the crushing balls are evenly distributed on the fixing plate. Before the water-based paint is ground, there are some large-diameter particles. 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 coating of the large-diameter particles affects the grinding efficiency; The paint is preliminarily pulverized, and the water-based paint is transported from the feeding port to the hollow shaft. At the same time, the motor drives the hollow shaft to rotate, so that the crushing ball fixed on the fixed plate rotates, and the water-based crushing ball and large-diameter particles are increased during the rotation of the crushing ball. The contact area of the paint makes the crushing ball fully impact the large-diameter water-based paint, so that the large-diameter water-based paint is initially broken, thereby improving the grinding efficiency of the subsequent water-based paint.

Preferably, a No. 1 slot is arranged inside the crushing ball; a crushing block is arranged in the No. 1 slot; The cross-sectional shape of the other end of the crushing block is triangular. When the crushing ball collides with the water-based paint with large-diameter particles, it is extremely difficult for some large-diameter water-based coatings to break, thus affecting the crushing effect; the present invention arranges a crushing block in the crushing ball, and when the large-diameter particle water-based coating contacts the crushing block , Through the mutual cooperation between the crushing blocks, the water-based paint with large-diameter particles is broken, thereby improving the crushing efficiency and effect of the water-based paint.

Preferably, the bottom of the upper grinding disc is provided with a control unit; the control unit is used to control the opening and closing of the No. 1 discharge port, and the control unit includes an electromagnet, a telescopic rod and a blocking block; one end of the telescopic rod is connected to the electromagnet The other end of the telescopic rod is fixedly connected with the blocking block; the telescopic rod is made of magnetic material; the electromagnet is fixedly installed on the inner wall of the upper grinding disc; the blocking block is located above the No. 1 discharge port. In the preliminary crushing of the large-diameter particle water-based paint, the No. 1 discharge port is not blocked in the prior art, so that the large-diameter particle water-based paint is not sufficiently broken; , the blocking block blocks the No. 1 discharge port, and the large-diameter particle water-based paint is fully broken in the hollow chamber, thereby improving the crushing effect of the water-based paint; after the water-based paint is fully broken, the electromagnet is energized, and the telescopic rod The blocking block is driven to move to the side close to the electromagnet, the No. 1 discharge port is opened, and the broken water-based paint falls into the lower grinding plate for sufficient grinding, thereby improving the grinding efficiency of the water-based paint.

Preferably, the lower grinding disc includes a No. 1 grinding disc, an elastic sleeve and a No. 2 grinding disc; the No. 1 grinding disc is located above the No. 2 grinding disc, and the No. 1 grinding disc is connected to the No. 2 grinding disc through an elastic sleeve The No. 1 grinding disc is provided with a group of No. 1 holes; the No. 2 grinding disc is provided with a group of No. 2 holes, and the top of the No. 2 grinding disc is connected with the drive unit, and the driving unit drives the No. 1 grinding disc to cooperate with the upper grinding disc. Grind. The water-based paint is collected after being ground. In the prior art, the ground water-based paint adheres to the No. 1 and No. 2 holes. Long-term accumulation easily blocks the No. 1 and No. 2 holes, thereby affecting the later water-based paint. In the present invention, the lower grinding disc is divided into multiple layers and connected by an elastic sleeve; the elastic sleeve is provided, on the one hand, the water-based paint is prevented from escaping from both sides of the No. 1 grinding disc and No. 2 grinding disc, so that the The ground water-based paint is fully collected, thereby improving the collection efficiency of the water-based paint; on the other hand, when the No. 1 grinding disc is matched with the upper grinding disc to grind the water-based paint, the No. 1 grinding disc shakes, and the shaking makes the water-based paint fully collect. Grinding, thereby improving the grinding efficiency of the water-based paint; and the ground water-based paint is cleaned from the No. 1 grinding disc to prevent the later water-based paint from being affected. Grinding, thereby improving the grinding effect of the water-based paint.

Preferably, the No. 1 grinding disc is provided with a No. 2 slot; the No. 2 slot is perpendicular to the No. 1 hole, and a No. 1 plate is arranged in the No. 2 slot; both ends of the No. 1 plate are fixed to the No. 2 plate through springs On the slot, the No. 1 plate is provided with a group of No. 3 holes; the No. 3 holes and the No. 1 holes are staggered from each other. In the prior art, the water-based paint that is not sufficiently ground is dropped and collected from the No. 1 hole, thereby affecting the grinding effect of the water-based paint; in the present invention, by setting the No. 1 plate, the No. 1 plate blocks the No. 1 hole before grinding, because the Under the action of inertia, the No. 1 plate slides relative to the No. 1 grinding disc, the No. 1 hole is connected with the No. 3 hole, and the ground water-based paint falls from the communication hole, thereby improving the grinding effect of the water-based paint.

Preferably, the upper surface of the No. 2 grinding disc is provided with a circular arc groove, the circular arc groove is provided with a grinding ball, and the circular arc groove and the grinding ball are used for fine grinding of the water-based paint. The ground water-based paint falls on the No. 2 grinding disc through the No. 1 hole and No. 3 hole. By setting the arc groove and the grinding ball, the driving unit drives the No. 2 grinding disc to move left and right. The grinding ball is subjected to centrifugal force, and the grinding ball Rolling in the arc groove, the grinding ball finely grinds the water-based paint in the rolling, thus improving the grinding effect of the water-based paint.

The beneficial effects of the present invention are as follows:

1. the production method of a kind of latex paint of the present invention, this method adopts grinding device, grinding device is by setting drive unit, and described drive unit comprises rotating wheel, No. 1 rod, No. 2 rod, No. 3 rod, No. 4 Rod, mounting block; the drive unit drives the lower grinding disc to move both up and down, and left and right, the upper grinding disc and the lower grinding disc cooperate with each other to fully grind the water-based paint, thereby improving the grinding efficiency of the water-based paint.

2. The production method of a latex paint according to the present invention, the method adopts a grinding device, and the grinding device is provided with a crushing unit, and the crushing unit includes a crushing ball and a fixed plate; The contact area between the crushing ball and the large-diameter particle water-based paint is adjusted, so that the crushing ball can fully impact the large-diameter water-based paint, so that the large-diameter water-based paint is initially broken, and the grinding efficiency of the subsequent water-based paint is improved.

3. The production method of a latex paint of the present invention, the method adopts a grinding device, and the grinding device is provided with a control unit, and the control unit includes an electromagnet, a telescopic rod and a blocking block; when the electromagnet is not energized, the blocking block is The No. 1 discharge port is blocked, and the large-diameter particle water-based paint is fully crushed in the hollow chamber, thereby improving the crushing effect of the water-based paint; the electromagnet is energized, and the telescopic rod drives the blocking block to move to the side close to the electromagnet , the No. 1 discharge port is opened, and the broken water-based paint falls into the lower grinding disc for sufficient grinding, thereby improving the grinding efficiency of the water-based paint.

4. the production method of a kind of latex paint of the present invention, this method adopts grinding device, and the grinding device connects No. 1 grinding disc and No. 2 grinding disc by elastic sleeve; On the other hand, the ground water-based paint can be cleaned from the No. 1 grinding disc, so as not to affect the grinding of the later water-based paint, thereby improving the grinding effect of the water-based paint.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the process flow diagram of the present invention;

Figure 2 is a front view of the grinding device;

Fig. 3 is the partial enlarged view of A place in Fig. 2;

Fig. 4 is a partial enlarged view at B in Fig. 3;

Fig. 5 is the partial enlarged view of C place in Fig. 2;

6 is a schematic structural diagram of a drive unit;

In the figure: cylinder 1, collection box 11, hollow shaft 2, feed port 21, upper grinding disc 3, No. 1 discharge port 31, hollow chamber 32, lower grinding disc 4, No. 1 grinding disc 41, No. 2 slot 411 , No. 1 plate 412, No. 3 hole 413, No. 1 hole 414, elastic sleeve 42, No. 2 grinding disc 43, No. 2 hole 431, arc groove 432, grinding ball 433, drive unit 5, rotating wheel 51, No. 1 rod 52, No. 2 rod 53, No. 3 rod 54, No. 4 rod 55, mounting block 56, crushing unit 6, crushing ball 61, No. 1 slot 611, crushing block 612, fixing plate 62, control unit 7, electromagnetic Iron 71, telescopic rod 72, blocking block 73.

Detailed ways

In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific embodiments.

As shown in Fig. 1 to Fig. 6, the production method of a kind of latex paint of the present invention, this method comprises the following steps:

Step 1: put the granular powder into the grinding device for grinding to obtain the grinding powder;

Step 2: Put the ionized water, dispersing agent, wetting agent, leveling agent, antiseptic and antifungal agent, film-forming aid, buffer, whitening agent, defoamer aid into the mixing device for mixing to obtain mixture;

Step 3: put the grinding powder in Step 1, the mixed solution in Step 2 and the aqueous solution of hydroxyethyl cellulose into a disperser for high-speed dispersion to obtain white pulp;

Step 4: add the white paste in step 3 into the emulsion at a slow speed, and stir at a low speed to obtain a primary coating;

Step 5: adding the thickener to the primary coating in step 4, adjusting the viscosity of the primary coating, and adjusting the color and depth of the primary coating with color paste to obtain a finished latex paint;

Wherein, a grinding device is used in step 1, and the grinding device includes a cylinder body 1; it also includes a hollow shaft 2, an upper grinding disc 3, a lower grinding disc 4, a collection box 11 and a driving unit 5; the cylinder body 1 is provided with an upper grinding disc 3 and a lower grinding disc 4; the upper grinding disc 3 is located above the lower grinding disc 4, and the bottom of the upper grinding disc 3 is provided with a No. 1 discharge port 31; It is rotatably connected with the motor, and the outer ring of the other end of the hollow shaft 2 is provided with a feeding port 21; the No. 1 discharge port 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 It is used to drive the lower grinding disc 4 to cooperate with the upper grinding disc 3 for grinding; the collection box 11 is placed at the bottom of the cylinder 1, and the collection box 11 is used for the collection after the water-based paint is ground; wherein,

The driving unit 5 includes a rotating wheel 51, a No. 1 rod 52, a No. 2 rod 53, a No. 3 rod 54, a No. 4 rod 55, and a mounting block 56; On the side wall of the body; one end of the No. 1 rod 52 is hinged on the rotating wheel 51, and the other end of the No. 1 rod 52 is hinged on the No. 2 rod 53; On the grinding disc 4; the No. 3 rod 54 is located at the rear of the upper grinding disc 3; the No. 2 rod 53 is an L-shaped rod, the No. 2 rod 53 is installed symmetrically, and one end of the No. The other end of the number rod 53 is hinged on the number three rod 54, the end of the number two rod 53 that is flush with the hinge point of the side wall of the cylinder 1 slides left and right on the mounting block 56; one end of the number four rod 55 is hinged on the number three rod 54 , the other end of the fourth rod 55 slides up and down on the mounting block 56 , and the middle of the fourth rod 55 is hinged on the side wall of the cylinder 1 . In the preparation of the polymer water-based paint, the water-based paint needs to be ground. In the existing grinding, the water-based paint is placed in the lower grinding disc 4, the motor drives the upper grinding disc 3 to rotate, and the upper grinding disc 3 and the lower grinding disc 4 cooperate to grind the water-based coating. Grinding is made entirely by rotation, and the grinding effect of the water-based paint ground in this way is not good, thereby affecting the preparation of the subsequent polymer water-based paint; before the grinding of the present invention, the driving motor drives the hollow shaft 2 to rotate, and at the same time, the water-based paint is removed from the feeding port. Put in, the water-based paint falls on the lower grinding disc 4 through the No. 1 discharge port 31; at this time, the rotating wheel 51 is driven to rotate counterclockwise by the driving motor, and the No. 2 rod 53 and No. The number rod 53 is pushed to make the lower grinding disc 4 move left and right, and the upper grinding disc 3 is attached to the lower grinding disc 4. At the same time, the fourth rod 55 is pushed, so that the lower grinding disc 4 moves upward and moves in a balanced manner; The water-based paint is completely spread on the lower grinding disc 4, thereby increasing the contact area between the water-based coating and the upper grinding disc 3, thereby improving the grinding efficiency; on the other hand, the water-based coating with large-diameter particles is crushed, thereby improving the grinding efficiency of the water-based coating. ; The rotating force generated by the hollow shaft 2 to the upper grinding disc 3 grinds the water-based paint after spreading; The water-based coating is fully ground through the cooperation of the upper grinding disc 3 and the lower grinding disc 4, thereby improving the grinding efficiency of the water-based coating, thereby improving The subsequent preparation effect of the polymer water-based coating was obtained.

As an embodiment of the present invention, the upper grinding disc 3 is provided with a hollow chamber 32; the hollow chamber 32 is provided with a crushing unit 6; the crushing unit 6 includes a crushing ball 61 and a fixing plate 62; the The fixing plate 62 is symmetrically and obliquely fixed on the inner wall of the upper grinding disc 3, and the fixing plate 62 divides the hollow chamber 32 into two parts; 62 is evenly distributed. Before the water-based paint is ground, there are some large-diameter particles, 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 coating of the large-diameter particles affects the grinding efficiency; The water-based paint is preliminarily pulverized before, and the water-based paint is transported from the feeding port to the hollow shaft 2. At the same time, the motor drives the hollow shaft 2 to rotate, so that the crushing ball 61 fixed on the fixed plate 62 rotates, and the crushing ball 61 increases during rotation. The contact area between the crushing ball 61 and the large-diameter particle water-based paint is reduced, so that the crushing ball 61 fully impacts the large-diameter water-based paint, so that the large-diameter water-based paint is initially broken, thereby improving the subsequent grinding efficiency of the water-based paint.

As an embodiment of the present invention, a No. 1 slot 611 is provided inside the crushing ball 61; a crushing block 612 is arranged in the No. 1 slot 611; One end of the crushing block 612 slides in the No. 1 slot 611, and the other end of the crushing block 612 has a triangular cross-sectional shape. When the crushing ball 61 collides with the large-diameter particle water-based paint, it is extremely difficult for some large-diameter water-based paint to break, thereby affecting the crushing effect; in the present invention, a crushing block is arranged in the crushing ball 61, and the large-diameter particle water-based paint is contacted and broken. When the blocks are broken, the water-based paint with large-diameter particles is broken through the cooperation between the broken blocks, thereby improving the breaking efficiency and effect of the water-based paint.

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 to control the opening and closing of the No. 1 discharge port 31, and the control unit 7 includes an electromagnet 71, a telescopic rod 72 and 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 installed in On the inner wall of the upper grinding disc 3 ; the blocking block 73 is located above the No. 1 discharge port 31 . In the preliminary crushing of the large-diameter particle water-based paint, the No. 1 discharge port 31 is not blocked in the prior art, so that the large-diameter particle water-based paint is not sufficiently broken; When the power is not turned on, the blocking block 73 blocks the No. 1 discharge port 31, and the large-diameter particle water-based paint is sufficiently broken in the hollow chamber 32, thereby improving the breaking effect of the water-based paint; after the water-based paint is sufficiently broken, The electromagnet 71 is energized, the telescopic rod 72 drives the blocking block 73 to move to the side close to the electromagnet 71, the No. 1 discharge port 31 is opened, and the broken water-based paint falls into the lower grinding disc 4 for sufficient grinding, thereby improving the water-based Grinding efficiency of paint.

As an embodiment of the present invention, the lower grinding disc 4 includes a No. 1 grinding disc 41, an elastic sleeve 42 and a No. 2 grinding disc 43; the No. 1 grinding disc 41 is located above the No. 2 grinding disc 43, and the No. The grinding disc 41 is connected with the No. 2 grinding disc 43 through the elastic sleeve 42; the No. 1 grinding disc 41 is provided with a set of No. 1 holes 414; the No. 2 grinding disc 43 is provided with a set of No. 2 holes 431, the No. The top of the grinding disc 43 is connected with the driving unit 5, and the driving unit 5 drives the No. 1 grinding disc 41 to match the upper grinding disc 3 for grinding. The water-based paint is collected after grinding. In the prior art, the ground water-based paint adheres to the No. 1 hole 414 and the No. 2 hole 431, and the accumulation for a long time is easy to block the No. 1 hole 414 and the No. 2 hole 431, thereby affecting the The collection efficiency of the water-based paint in the later stage; the present invention divides the lower grinding disc 4 into multiple layers and connects them through the elastic sleeve 42; setting the elastic sleeve 42, on the one hand, prevents the water-based paint from grinding from the No. 1 grinding disc 41 and No. 2 grinding discs The two sides of the disc 43 escape, so that the ground water-based paint is fully collected, thereby improving the collection efficiency of the water-based paint; on the other hand, when the No. 41 shakes, and the shaking not only makes the water-based paint fully grind, thereby improving the grinding efficiency of the water-based paint; it also causes the ground water-based paint to be cleaned from the No. Grinding effect of water-based paints.

As an embodiment of the present invention, the No. 1 grinding disc 41 is provided with a No. 2 groove 411; the No. 2 groove 411 is perpendicular to the No. 1 hole 414, and a No. 1 plate 412 is arranged in the No. 2 groove 411; the The two ends of the No. 1 plate 412 are fixedly connected to the No. 2 slot 411 by springs. The No. 1 plate 412 is provided with a group of No. 3 holes 413 ; the No. 3 holes 413 and the No. 1 holes 414 are staggered. In the prior art, the water-based paint that is not sufficiently ground is dropped from the No. 1 hole 414 to be collected, thereby affecting the grinding effect of the water-based paint; in the present invention, by setting the No. 1 plate 412, before grinding, the No. 1 plate 412 removes the No. 1 hole 414. Blocked, due to inertia, the No. 1 plate 412 slides relative to the No. 1 grinding disc 41, the No. 1 hole 414 is communicated with the No. 3 hole 413, and the ground water-based paint falls from the communication hole, thereby improving the water-based paint. grinding effect.

As an embodiment of the present invention, the upper surface of the No. 2 grinding disc 43 is provided with a circular arc groove 432, the circular arc groove 432 is provided with a grinding ball 433, the circular arc groove 432 and the grinding ball 433 It is suitable for fine grinding of water-based paints. The ground water-based paint falls onto the No. 2 grinding disc 43 through the No. 1 hole 414 and No. 3 hole 413. By setting the arc groove 432 and the grinding ball 433, the driving unit 5 drives the No. 2 grinding disc 43 to move left and right, The grinding ball 433 is subjected to centrifugal force, the grinding ball 433 rolls in the arc groove 432, and the grinding ball 433 finely grinds the water-based paint during rolling, thereby improving the grinding effect of the water-based paint.

When in use, the motor drives the hollow shaft 2 to rotate, and at the same time, the water-based paint is put in from the feeding port, the water-based paint enters the hollow chamber 32, the control unit 7 is adjusted, and the blocking block 73 blocks the No. 1 discharge port 31, and the crushing unit 6 Fully crush the water-based paint with large-diameter particles, adjust the control unit 7 after crushing, the blocking block 73 is separated from the No. 1 discharge port 31, and the water-based paint falls on the lower grinding disc 4 through the No. 1 discharge port 31; at this time, the drive The driving unit 5 drives the No. 1 grinding disc 41 to cooperate with the upper grinding disc 3 for grinding. During the grinding, the No. 1 plate 412 blocks the No. 1 hole 414 so that the water-based paint can be fully ground. At the same time, due to the action of the sleeve, the No. 1 grinding The disc 41 vibrates, on the one hand, the water-based paint is fully ground, thereby improving the grinding efficiency of the water-based paint; on the other hand, the ground water-based paint is cleaned from the No. Grinding, thereby improving the grinding effect of the water-based paint; the ground water-based paint is collected through the collection box 11 .

The above-mentioned front, back, left, right, top and bottom are all based on Fig. 2 in the accompanying drawings of the description, and according to the observation angle of the person as a standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, And so on.

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that The device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention.

Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these Modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims (1)

1. a production method of latex paint, is characterized in that: the method comprises the following steps: Step 1: put the granular powder into the grinding device for grinding to obtain the grinding powder; Step 2: Put the ionized water, dispersing agent, wetting agent, leveling agent, antiseptic and antifungal agent, film-forming aid, buffer, whitening agent, defoamer aid into the mixing device for mixing to obtain mixture; Step 3: put the grinding powder in Step 1, the mixed solution in Step 2 and the aqueous solution of hydroxyethyl cellulose into a disperser for high-speed dispersion to obtain white pulp; Step 4: add the white paste in step 3 into the emulsion at a slow speed, and stir at a low speed to obtain a primary coating; Step 5: adding the thickener to the primary coating in step 4, adjusting the viscosity of the primary coating, and adjusting the color and depth of the primary coating with color paste to obtain a finished latex paint; Wherein, a grinding device is used in step 1, and the grinding device comprises a cylindrical body (1), a hollow shaft (2), an upper grinding disc (3), a lower grinding disc (4), a collection box (11) and a driving unit (5); the cylindrical body (1) An upper grinding disc (3) and a lower grinding disc (4) are provided inside; the upper grinding disc (3) is located above the lower grinding disc (4), and the bottom of the upper grinding disc (3) is provided with a No. 1 discharge port (31); One end of the hollow shaft (2) is fixedly connected with the upper grinding disc (3), the other end of the hollow shaft (2) protrudes from the outer wall of the cylinder (1) and is rotatably connected to the motor, and the outer ring of the other end of the hollow shaft (2) is provided on the outer ring. There is a feeding port (21); the No. 1 discharge port (31) is communicated with the hollow shaft (2); the lower grinding disc (4) is connected with a driving unit (5), and the driving unit (5) is used for driving the lower The grinding disc (4) cooperates with the upper grinding disc (3) for grinding; the collection box (11) is placed at the bottom of the cylinder (1), and the collection box (11) is used for the collection after the water-based paint is ground; wherein, the drive unit ( 5) comprising a rotating wheel (51), a No. 1 rod (52), a No. 2 rod (53), a No. 3 rod (54), a No. 4 rod (55), and a mounting block (56); the rotating wheel (51) It is rotatably connected with the driving motor, and the driving motor is fixed on the side wall of the cylinder body; one end of the No. 1 rod (52) is hinged on the rotating wheel (51), and the other end of the No. 1 rod (52) is hinged on the No. 2 rod (53) upper; 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 located behind the upper grinding disc (3); the second The rod (53) is an L-shaped rod, the No. 2 rod (53) is installed symmetrically, one end of the No. 2 rod (53) is hinged on the side wall of the cylinder (1), and the other end of the No. 54), the end of the No. 2 rod (53) that is flush with the hinge point of the side wall of the cylinder (1) slides left and right on the mounting block (56); one end of the No. 4 rod (55) is hinged on the No. 3 rod ( 54), the other end of the No. 4 rod (55) slides up and down on the mounting block (56), and the middle of the No. 4 rod (55) is hinged on the side wall of the cylinder (1); 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) includes a crushing ball (61) and a fixing plate ( 62); the fixing plate (62) is symmetrically and obliquely fixed on the inner wall of the upper grinding disc (3), and the fixing plate (62) divides the hollow chamber (32) into two parts; the crushing ball (61) passes through the spring be fixed on the fixed plate (62), and the crushing balls (61) are evenly distributed on the fixed plate (62); A No. 1 slot (611) is arranged inside the crushing ball (61); a crushing block (612) is arranged in the No. 1 slot (611); (611), one end of the crushing block (612) slides in the No. 1 slot (611), and the other end of the crushing block (612) has a triangular cross-sectional shape; A control unit (7) is provided at the bottom of the upper grinding disc (3); the control unit (7) is used to control the opening and closing of the No. 1 discharge port (31), and the control unit (7) includes an electromagnet (71) , a telescopic 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 fixedly connected with the blocking block (73) (72) is made of magnetic material; the electromagnet (71) is fixedly installed on the inner wall of the upper grinding disc (3); the blocking block (73) is located above the No. 1 discharge port (31); The lower grinding disc (4) comprises a No. 1 grinding disc (41), an elastic sleeve (42) and a No. 2 grinding disc (43); the No. 1 grinding disc (41) is located above the No. 2 grinding disc (43) , the No. 1 grinding disc (41) is connected with the No. 2 grinding disc (43) through the elastic sleeve (42); the No. 1 grinding disc (41) is provided with a group of No. 1 holes (414); the No. 2 grinding disc (41) The disc (43) is provided with a set of No. 2 holes (431), the top of the No. 2 grinding disc (43) is connected to the driving unit (5), and the driving unit (5) drives the No. 1 grinding disc (41) to match the upper grinding disc (3). to grind; The No. 1 grinding disc (41) is provided with a No. 2 groove (411); the No. 2 groove (411) is perpendicular to the No. 1 hole (414), and a No. 1 plate (412) is arranged in the No. 2 groove (411) ; Both ends of the No. 1 plate (412) are fixedly connected to the No. 2 slot (411) through springs, and a group of No. 3 holes (413) are arranged on the No. 1 plate (412); the No. 3 holes (413) and No. 1 holes (414) are staggered from each other; The upper surface of the No. 2 grinding disc (43) is provided with a circular arc groove (432), the circular arc groove (432) is provided with a grinding ball (433), the circular arc groove (432) and the grinding ball (433) is used for fine grinding of water-based paints.

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