Powder grinding machine for preparing self-leveling waterproof coating

Abstract

The utility model discloses a powder grinding machine for preparing a self-leveling waterproof coating, and relates to the technical field of waterproof coatings. The grinding machine comprises a grinding machine body and a grinding motor, one end of the grinding machine body is connected with a grinding pipe in a penetrating and clamping mode, the top of the peripheral face of the grinding pipe is connected with a backflow pipe in a penetrating and clamping mode, one end of the bottom of the grinding machine body is connected with a screen in a penetrating and clamping mode, and one end of the grinding pipe is connected with the grinding motor in a penetrating and clamping mode. And a first spiral conveying assembly and a second spiral conveying assembly are arranged at the other end of the grinding roller. By arranging the grinding machine main body and the grinding motor, the problems that when the powder grinding machine is used for grinding, powder which is far away from the screen and reaches the specified fineness is difficult to screen and discharge quickly, and part of the powder reaches the specified particle fineness before grinding but is difficult to screen quickly, so that the grinding efficiency of the powder grinding machine is improved are solved. And the problem of long-time friction between part of the powder and a grinding structure is often caused by sieving and discharging after the powder is ground to the specified fineness is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterproof coatings, in particular to a powder grinding machine for preparing self-leveling waterproof coatings. Background Art

[0002] Self-leveling paint refers to solvent-free, dense-particle thick paste epoxy floor paint, which has the advantages of acid, alkali, salt, oil corrosion, wear resistance, pressure resistance, impact resistance, and certain elasticity. It is widely used in the electronics and microelectronics industries that require high cleanliness, beauty, dust-free, sterile and anti-static, the pharmaceutical industry that implements GMP standards, and the blood products industry. However, during the production of self-leveling paint, since self-leveling paint is prone to shrinkage, spots, patterns, color differences, floating colors, discoloration and other quality problems during the construction process, the requirements for paint preparation are usually high during the production and processing of self-leveling paint, especially for the fineness of powder. In order to ensure that the powder particles reach the specified fineness, self-leveling paint usually uses a grinder to grind the powder during the preparation process to improve the grinding efficiency of the powder, but it still has the following disadvantages in actual use:

[0003] 1. The utility model with the publication number CN216419505U discloses a colloid grinder for water-based paste waterproof coating, wherein an upper grinding chamber is disposed below a feed port, a lower grinding chamber is disposed near a discharge port, the upper grinding chamber is connected to the lower grinding chamber, an upper grinding mechanism is disposed in the upper grinding chamber, and a lower grinding mechanism is disposed in the lower grinding chamber. When the grinder grinds the powder, the ground powder is usually sieved through a screen to determine whether the powder fineness meets the standard, and the powder that meets the standard is discharged. However, in the large-scale powder processing process, a large amount of powder is often required to be ground at one time. Due to the limited area of ​​the screen, the powder far away from the screen is usually difficult to be quickly sieved, and the accumulation of a large amount of powder will reduce the movable space of the powder in the grinder, further resulting in the difficulty of quickly discharging the powder reaching the specified fineness, thereby reducing production efficiency.

[0004] 2. During the powder grinding process, the powder closest to the grinding structure is usually ground first, and then sieved out after being ground to the specified size. However, some powders may reach the specified particle fineness without being ground and do not need to be ground. Excessive grinding affects the processing efficiency, and grinding the powder to the specified fineness and then sieving out the powder often causes some powders to rub against the grinding structure for a long time, causing the grinding structure to continue to heat up and shortening the service life of the grinding structure. Utility Model Content

[0005] The utility model aims to provide a powder grinder for preparing self-leveling waterproof coatings. Through the grinder body and the grinding motor, the problem that when the powder grinder is grinding, the screen area is limited, and the powder that is far away from the screen and reaches the specified fineness is difficult to be quickly sieved out, which affects the powder processing efficiency; some powders have reached the specified particle fineness before grinding, but are difficult to be quickly sieved out, and excessive grinding will reduce the processing efficiency. In addition, grinding the powder to the specified fineness and then sieving out the powder often causes part of the powder to rub against the grinding structure for a long time, causing the grinding structure to continue to heat up and shortening the service life of the grinding structure.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a powder grinder for preparing a self-leveling waterproof coating, comprising a grinder body and a grinding motor, wherein one end of the grinder body is penetrated and clamped with a grinding tube, the top of the outer peripheral surface of the grinding tube is penetrated and clamped with a return tube, one end of the bottom of the grinder body is penetrated and clamped with a screen, one end of the grinding tube is penetrated and clamped with a grinding motor, one end of the grinding motor is rotatably clamped with a grinding roller, and the other end of the grinding roller is provided with a first spiral feeding assembly and a second spiral feeding assembly;

[0008] The powder entering the grinder body is first screened through a screen, so that the powder that reaches the particle fineness is directly discharged to avoid over-grinding. After entering the grinding tube, the grinding motor drives the grinding roller to rotate to grind the powder with unqualified particles. In the grinding process, the grinding motor drives the first spiral feeding assembly and the second spiral feeding assembly to rotate continuously to convey the powder poured into the hopper of the grinder body, so that a large amount of powder passes through the screen surface in turn, thereby improving the efficiency of screening and discharging, and the newly conveyed powder squeezes the powder being ground, so that the ground and heated powder enters the reflux pipe and flows back to the inside of the grinder body again, thereby avoiding overheating and damage to the grinding roller caused by long-term grinding of some powder. At the same time, some of the ground powder is conveyed again through the first spiral feeding assembly and the second spiral feeding assembly, so that some of the powder is screened again to screen out the qualified part, thereby ensuring that the powder ground by the grinding roller is always powder that does not reach the specified particle fineness, thereby improving processing efficiency.

[0009] Furthermore, a feed pipe is welded through one end of the grinder body, a hopper is welded through the top of the other end of the feed pipe, and the feed pipe is located at the other end of the grinder body relative to the grinding pipe;

[0010] A large amount of powder is poured into the inner side of the hopper, and the powder falls to the inner side of the feed pipe under the action of gravity, and the rotation of the first spiral feed assembly and the second spiral feed assembly drives the powder to move along the feed pipe and the grinder body, so that a large amount of powder is sieved and ground in batches, avoiding direct grinding of a large amount of powder, which results in a limited amount of powder contacting the grinding roller.

[0011] Furthermore, a support frame is fixedly connected to the outer peripheral surface of the grinder body, a discharge pipe is welded to the bottom of the outer peripheral surface of the grinder body, the discharge pipe is located at the bottom of the screen, the discharge pipe is located at the other end of the grinder body relative to the feed pipe, one end of the reflux pipe is located at the other side of the grinding pipe relative to the grinder body, and the other end of the reflux pipe relative to the grinding pipe penetrates and is connected to the top of the outer peripheral surface of the feed pipe;

[0012] The powder that has been ground for a certain period of time enters the reflux pipe under the extrusion of the unground powder, so as to avoid the overheating of the grinding roller caused by the long-term friction between a certain amount of powder and the grinding roller, and the new unground powder can cool down the grinding roller to extend the service life of the grinding roller. At the same time, a fan can be arranged in the reflux pipe. When the remaining amount of powder is small, the air flow driven by the fan further drives a small amount of powder into the grinding tube for grinding, so as to avoid the difficulty in grinding and discharging the remaining small amount of powder. When the powder moves in the main body of the grinder, the powder can be sieved through the screen and then ground through the grinding roller, so that the powder that reaches the particle fineness can be directly discharged to avoid over-grinding, and the powder entering the grinding tube is always unqualified powder, thereby improving the processing efficiency.

[0013] Furthermore, a rotating rod is clamped and fixed at one end of the grinding roller, the first spiral feeding assembly and the second spiral feeding assembly are both clamped and fixed to the outer peripheral surface of the rotating rod, the first spiral feeding assembly is inserted into the inner side of the feed pipe, and the second spiral feeding assembly is inserted into the inner side of the grinding machine body;

[0014] The grinding motor can drive the first spiral feeding assembly and the second spiral feeding assembly to rotate, and the powder is transported, so that a large amount of powder can be transported, screened, ground, and refluxed in a cycle, so that the powder reaching the specified particle fineness can be screened and discharged in time, thereby ensuring the processing efficiency.

[0015] Furthermore, a plurality of grinding blocks are fixedly connected to the outer circumference of the grinding roller, a scraper is fixedly connected to the outer circumference of the rotating rod, the scraper is attached to one side of the screen, the scraper is located between the second spiral feeding assembly and the grinding roller, and the grinding roller is inserted into the inner side of the grinding tube;

[0016] The scraper can clean the surface of the screen to prevent powder from clogging the screen surface. The grinding block can allow the powder to quickly enter the gap between the grinding roller and the grinding tube, and grind the powder through the gap between the grinding block and the grinding tube.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model solves the problem that when the grinder grinds powder, the ground powder is usually screened through a screen to determine whether the powder fineness reaches the standard and the powder that reaches the standard is discharged. However, in the large-scale powder processing process, a large amount of powder is often required to be ground at one time. Due to the limited area of ​​the screen, the powder far away from the screen is usually difficult to be screened quickly, and the accumulation of a large amount of powder will reduce the movable space of the powder in the grinder, further resulting in the difficulty of quickly discharging the powder that reaches the specified fineness, thereby reducing the production efficiency. The grinding motor drives the first spiral feed assembly and the second spiral feed assembly to rotate, and a large amount of powder is transported in batches and enters the grinding tube for grinding in turn. The powder ground for a certain time is refluxed through the reflux pipe, so that the powder enters the inner side of the grinder body again, and the powder that has reached the specified particle fineness is screened through the screen, thereby avoiding the accumulation of a large amount of powder and improving the processing efficiency.

[0019] 2. The utility model solves the problem that during the grinding process of powder, the powder closest to the grinding structure is usually ground first, and is sieved and discharged after being ground to a specified size, but some powder may reach the specified particle fineness before being ground and does not need to be ground. Over-grinding affects the processing efficiency, and grinding the powder to the specified fineness and then sieving it for discharge often causes some powder and the grinding structure to rub for a long time, causing the grinding structure to continuously heat up and shortening the service life of the grinding structure. During the grinding process, the powder transported by the first spiral feed assembly and the second spiral feed assembly is first sieved through the screen and then ground by the grinding roller, ensuring that the powder that has reached the particle fineness is directly discharged first, avoiding the influence of over-grinding on the processing efficiency, and during the grinding process, the new powder continuously squeezes the powder on the front side, so that the high-temperature powder after grinding enters the reflux pipe for reflux and cooling, so that the new powder cools the grinding roller and extends the service life of the grinding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural effect diagram of the utility model;

[0022] Figure 3 This is a structural diagram of the main body of the grinding machine of the utility model;

[0023] Figure 4 It is a cross-sectional view of the main body of the grinding machine of the utility model;

[0024] Figure 5 This is a structural diagram of the grinding motor of the utility model.

[0025] Reference numerals:

[0026] 1. Grinding machine body; 101. Feed pipe; 102. Grinding pipe; 103. Reflux pipe; 104. Hopper; 105. Discharge pipe; 106. Support frame; 107. Screen; 2. Grinding motor; 201. Rotating rod; 202. Grinding roller; 203. Grinding block; 204. Scraper; 205. First spiral feeding assembly; 206. Second spiral feeding assembly. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] See also Figure 1-5 As shown, the utility model is a powder grinder for preparing a self-leveling waterproof coating, comprising a grinder body 1 and a grinding motor 2, a grinding tube 102 is penetrated and connected at one end of the grinder body 1, a return pipe 103 is penetrated and connected at the top of the outer peripheral surface of the grinding tube 102, a screen 107 is penetrated and connected at one end of the bottom of the grinder body 1, a grinding motor 2 is penetrated and connected at one end of the grinding tube 102, a grinding roller 202 is rotatably clamped at one end of the grinding motor 2, and a first spiral feeding assembly 205 and a second spiral feeding assembly 206 are arranged at the other end of the grinding roller 202;

[0029] A large amount of powder is poured into the hopper 104, and the grinding motor 2 is started. The grinding motor 2 drives the first spiral feeding assembly 205, the second spiral feeding assembly 206 and the grinding roller 202 to rotate, so that the powder falling into the feed pipe 101 is gradually transported. When the powder moves to the upper side of the screen 107, the powder that reaches the specified particle fineness is sieved through the screen 107 and discharged, and the powder that does not meet the standard enters the grinding tube 102 and is ground by the grinding roller 202. At the same time, the subsequent powder is continuously squeezed in the grinding tube 102 against the powder on the front side, so that the powder enters the reflux pipe 103 after being ground in the grinding tube 102 for a certain period of time, cools down in the reflux pipe 103 and refluxes to the feed pipe 101, and the cyclic processing operation of conveying, sieving, grinding and reflux is performed again until all the powder reaches the specified particle fineness and is discharged.

[0030] Among them Figure 1-4As shown, a feed pipe 101 is welded through one end of the grinder body 1, a hopper 104 is welded through the top of the other end of the feed pipe 101, the feed pipe 101 is located at the other end of the grinder body 1 relative to the grinding pipe 102, a support frame 106 is fixedly connected to the outer circumference of the grinder body 1, a discharge pipe 105 is welded to the bottom of the outer circumference of the grinder body 1, the discharge pipe 105 is located at the bottom of the screen 107, the discharge pipe 105 is located at the other end of the grinder body 1 relative to the feed pipe 101, one end of the reflux pipe 103 is located at the other side of the grinding pipe 102 relative to the grinder body 1, and the other end of the reflux pipe 103 relative to the grinding pipe 102 is connected through the top of the outer circumference of the feed pipe 101;

[0031] A large amount of powder is poured into the inner side of the hopper 104, and the powder falls to the inner side of the feed pipe 101 under the action of gravity, and the rotation of the first spiral feeding assembly 205 and the second spiral feeding assembly 206 drives the powder to move along the feed pipe 101 and the grinder body 1, so that a large amount of powder passes through the upper side of the screen 107 in batches, and qualified powder is sieved through the screen 107 and discharged through the discharge pipe 105, while unqualified powder is squeezed into the grinding tube 102 for grinding, and the powder that has been ground for a certain period of time enters the return pipe 103 under the extrusion of the unground powder, so as to avoid the long-term friction between a certain amount of powder and the grinding roller 202 causing the grinding roller 202 to overheat, and the new unground powder can cool the grinding roller 202, and a fan can be arranged in the return pipe 103 at the same time, when the remaining amount of powder is small, the air flow driven by the fan further drives a small amount of powder into the grinding tube 102 for grinding, so as to avoid the remaining small amount of powder being difficult to grind and discharge.

[0032] Among them Figure 1 , 2 As shown in , 5, one end of the grinding roller 202 is clamped and fixed with a rotating rod 201, the first spiral feeding assembly 205 and the second spiral feeding assembly 206 are both clamped and fixed to the outer circumference of the rotating rod 201, the first spiral feeding assembly 205 is inserted into the inner side of the feed pipe 101, the second spiral feeding assembly 206 is inserted into the inner side of the grinder body 1, a plurality of grinding blocks 203 are clamped and fixed to the outer circumference of the grinding roller 202, a scraper 204 is clamped and fixed to the outer circumference of the rotating rod 201, the scraper 204 is attached to one side of the screen 107, the scraper 204 is located between the second spiral feeding assembly 206 and the grinding roller 202, and the grinding roller 202 is inserted into the inner side of the grinding tube 102;

[0033] The first spiral feed assembly 205, the second spiral feed assembly 206, the scraper 204 and the grinding roller 202 are driven by the grinding motor 2 to rotate, and the powder is transported, so that a large amount of powder is transported, screened, ground and refluxed in a cycle, so that the powder reaching the specified particle fineness is screened and discharged in time, and the surface of the screen 107 is cleaned by the rotation of the scraper 204 to prevent the powder from clogging the surface of the screen 107.

[0034] The specific working principle of the utility model is as follows: a large amount of powder is poured into the inner side of the hopper 104, and the powder falls to the inner side of the feed pipe 101 under the action of gravity, and the grinding motor 2 is started to drive the first spiral feed assembly 205, the second spiral feed assembly 206, the scraper 204 and the grinding roller 202 to rotate, and the rotation of the first spiral feed assembly 205 and the second spiral feed assembly 206 drives the powder to move along the feed pipe 101 and the grinder body 1, so that a large amount of powder passes through the upper side of the screen 107 in batches, and the qualified powder is sieved through the screen 107 and passed through. The discharge pipe 105 discharges the material, while the unqualified powder is squeezed into the grinding tube 102 for grinding, and is ground through the gap between the grinding tube 102 and the grinding block 203. The powder ground for a certain period of time enters the return pipe 103 under the extrusion of the unground powder, so as to avoid the overheating of the grinding roller 202 caused by the long-term friction between a certain amount of powder and the grinding roller 202, and the new unground powder can cool the grinding roller 202. At the same time, the surface of the screen 107 is cleaned by the rotation of the scraper 204 to avoid the powder being blocked on the surface of the screen 107.

[0035] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A powder grinding machine for preparing a self-leveling waterproof coating, comprising a grinding machine body (1) and a grinding motor (2), characterized in that: A grinding tube (102) is inserted through one end of the grinding machine body (1), a return tube (103) is inserted through the top of the outer peripheral surface of the grinding tube (102), a screen (107) is inserted through one end of the bottom of the grinding machine body (1), a grinding motor (2) is inserted through one end of the grinding tube (102), a grinding roller (202) is rotatably inserted through one end of the grinding motor (2), and a first spiral feed assembly (205) and a second spiral feed assembly (206) are provided at the other end of the grinding roller (202).

2. The powder grinding machine for preparing a self-leveling waterproof coating according to claim 1, characterized in that: A feed pipe (101) is welded through one end of the grinder body (1), and a hopper (104) is welded through the top of the other end of the feed pipe (101). The feed pipe (101) is located at the other end of the grinder body (1) relative to the grinding pipe (102).

3. A powder grinding machine for preparing a self-leveling waterproof coating according to claim 2, characterized in that: A support frame (106) is fixedly connected to the outer peripheral surface of the grinding machine body (1), and a discharge pipe (105) is welded to the bottom of the outer peripheral surface of the grinding machine body (1). The discharge pipe (105) is located at the bottom of the screen (107). The discharge pipe (105) is located at the other end of the grinding machine body (1) relative to the feed pipe (101). One end of the reflux pipe (103) is located at the other side of the grinding pipe (102) relative to the grinding machine body (1), and the other end of the reflux pipe (103) relative to the grinding pipe (102) passes through and is connected to the top of the outer peripheral surface of the feed pipe (101).

4. The powder grinding machine for preparing a self-leveling waterproof coating according to claim 3, characterized in that: A rotating rod (201) is clamped and fixed to one end of the grinding roller (202); the first spiral material feeding component (205) and the second spiral material feeding component (206) are both clamped and fixed to the outer peripheral surface of the rotating rod (201); the first spiral material feeding component (205) is inserted into the inner side of the feed pipe (101), and the second spiral material feeding component (206) is inserted into the inner side of the grinding machine body (1).

5. The powder grinding machine for preparing a self-leveling waterproof coating according to claim 4, characterized in that: A plurality of grinding blocks (203) are fixedly connected to the outer circumference of the grinding roller (202); a scraper (204) is fixedly connected to the outer circumference of the rotating rod (201); the scraper (204) is attached to one side of the screen (107); the scraper (204) is located between the second spiral feeding assembly (206) and the grinding roller (202); and the grinding roller (202) is inserted into the inner side of the grinding tube (102).

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