CN210729641U

CN210729641U - Sand mill for producing water-based paint

Info

Publication number: CN210729641U
Application number: CN201921632102.XU
Authority: CN
Inventors: 何昌明; 何思宏; 陈志远
Original assignee: Dongtai Mingshan Stone Coating Co ltd
Current assignee: Dongtai Mingshan Stone Coating Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-06-12
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a sand mill for water based paint production, including the workstation and locate the abrasive material bucket of workstation top, the abrasive material bucket includes feeder hopper, one-level abrasive material chamber, abrasive material dish and second grade abrasive material chamber, one-level abrasive material chamber is square structure, is equipped with the abrasive material roller in; and a screening basket is arranged in the secondary grinding material cavity. The utility model discloses a combined action in one-level abrasive material chamber, abrasive material dish and second grade abrasive material chamber is polished layer upon layer to water based paint, has avoided having had graininess impurity in the water based paint that finally obtains, and the water based paint quality that obtains is higher, and the result of use is better.

Description

Sand mill for producing water-based paint

Technical Field

The utility model relates to a coating production technical field, concretely relates to sand mill for water based paint.

Background

Coatings using water as a solvent or as a dispersion medium may be referred to as waterborne coatings. The water-based paint has high market share due to excellent non-stick property and durability.

When the water-based paint is processed, a sand mill is needed for grinding, so that granular impurities in the paint are avoided, the water solubility of the paint is influenced when the paint is used, and the effect of the paint is poor when the paint is used. The prior sand mill has poor grinding effect, so that a sand mill with better grinding effect is needed to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a sand mill for water based paint production to improve sand mill's the effect of polishing, obtain high-quality water based paint.

The technical scheme of the utility model is that: a sander for water-based paint production, comprising a table and an abrasive bucket disposed above the table, the abrasive bucket comprising: a feed hopper; the primary grinding cavity is of a square structure and is communicated with the feed hopper, grinding rollers are arranged in the primary grinding cavity, the distance between the grinding rollers only allows water-based paint with the required particle size to pass through, and an arc-shaped material guide plate is arranged above the grinding rollers; the grinding disc is arranged below the primary grinding cavity, a supporting frame for supporting the grinding disc is arranged on the side wall of the grinding barrel, the grinding disc comprises a first grinding disc and a second grinding disc, a feeding hole is formed in the center of the first grinding disc, a discharging hole is formed in the edge of the second grinding disc, a gap is formed between the first grinding disc and the second grinding disc, the first grinding disc and the second grinding disc are driven to rotate through a rotary driving structure, and the first grinding disc and the second grinding disc are opposite in rotating direction;

and the second-stage abrasive cavity is arranged below the abrasive disc, and a screening basket is arranged in the second-stage abrasive cavity.

Furthermore, a large-scale support bearing is fixed on the second grinding disc, the heights of the outer ring and the inner ring of the support bearing are staggered, the outer ring at one end is higher than the inner ring, and the outer ring at the other end is lower than the inner ring.

Further, the rotational drive structure includes a first drive structure and a second drive structure.

Further, first drive structure includes a rotating electrical machines and a drive carousel of fixed connection with it, a drive carousel includes first rotation gear and first butt joint dish, first rotation gear and first butt joint dish fixed connection, first rotation gear and first mill mesh, first butt joint dish with the contact of second mill.

Further, the second drive structure includes second rotating electrical machines and second drive carousel fixed connection with it, the second drive carousel includes second rotating gear and second butt dish, second rotating gear and second butt dish fixed connection, second rotating gear and second mill meshing, second butt dish with first mill contact.

Furthermore, a third rotating motor is arranged at the bottom of the grinding material barrel, and a rotating shaft of the third rotating motor penetrates through the bottom wall of the grinding material barrel and is connected with the sieving basket.

Furthermore, a plurality of screening holes are formed in the wall of the screening basket, crushing blades are arranged on the wall of the screening holes, and a plurality of crushing teeth are arranged on the crushing blades.

The utility model has the advantages that:

1. the utility model discloses a combined action in one-level abrasive material chamber, abrasive material dish and second grade abrasive material chamber, polish water based paint layer upon layer, avoided having granular impurity in the water based paint that finally obtains, the water based paint quality that obtains is higher, the result of use is better; the primary grinding cavity is of a square structure, so that the grinding rollers can be more matched with the primary grinding cavity, grinding dead corners are avoided, the water-based paint with larger particle size passing through the two grinding rollers is crushed through the rotation of the grinding rollers, and the water-based paint passes through the space between the two grinding rollers as far as possible through the arranged material guide plate; further polishing the water-based paint by the abrasive disc, and finally screening the water-based paint by the screen basket to obtain the high-quality water-based paint;

2. through the arrangement of the supporting bearing, a certain gap is formed between the first grinding disc and the second grinding disc, so that the friction force generated by contact during supporting is reduced, and the operation of a grinding disc is convenient;

3. through set up broken blade on the screening hole, when the centrifugal force that sieve basket produced when rotatory drives water based paint and passes the screening hole, can carry out further breakage to water based paint, further improved water based paint grinding's effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the filter basket of the present invention;

FIG. 4 is a schematic structural view of the screening holes of the present invention;

fig. 5 is a schematic structural diagram of the support bearing of the present invention.

1. The grinding machine comprises a workbench 2, a grinding barrel 3, supporting legs 4, a discharging pipe 5, crushing teeth 6, a discharging control valve 7, a feeding hopper 8, a primary grinding cavity 9, a supporting frame 10, a secondary grinding cavity 11, a grinding roller 12, a fourth rotating motor 13, a material guiding plate 14, a first grinding disc 15, a second grinding disc 16, a feeding hole 17, a discharging hole 18, a supporting bearing 19, an inner ring 20, an outer ring 21, a first rotating motor 22, a first rotating gear 23, a first abutting disc 24, a second rotating motor 25, a second rotating gear 26, a second abutting disc 27, a sieving basket 28, a sieving hole 29, a crushing blade 30 and a third rotating motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The sand mill for producing the water-based paint comprises a workbench 1 and an abrasive barrel 2 arranged above the workbench 1, wherein the bottom of the abrasive barrel 2 is provided with a supporting leg 3, and the sand mill stands on the workbench 1 through the supporting leg 3. The side wall of the grinding barrel 2 close to the bottom is provided with a discharge pipe 4, and the discharge pipe 4 is provided with a discharge control valve 6. Abrasive bucket 2 includes feeder hopper 7, one-level abrasive chamber 8, abrasive disc and second grade abrasive chamber 10, and the concrete structure of above-mentioned each subassembly is as follows:

wherein the feeder hopper 7 with 8 intercommunications in one-level abrasive chamber, water based paint gets into one-level abrasive chamber 8 from feeder hopper 7 and carries out preliminary polishing to it. Two grinding rollers 11 are arranged in the primary grinding cavity 8, the distance between the two grinding rollers 11 only allows water-based paint meeting the requirement of the particle size to pass through, and the distance between the grinding rollers 11 and the side wall is the same and only allows water-based paint meeting the requirement to pass through. In order to make the water paint pass between the two grinding rollers 11 as far as possible, an arc-shaped material guiding plate 13 is arranged on the feed hopper 7. The grinding roller 11 is driven to rotate through a fourth rotating motor 12, particles which do not meet the requirement of the particle size penetrate between the two grinding rollers 11 after being crushed by the grinding roller 11, and the fourth rotating motor 12 is arranged outside the primary grinding cavity 8. It should be noted that the two abrasive rolls 11 rotate in opposite directions, and the rotation direction thereof is as shown in fig. 2, and the aqueous paint tends to be driven downward.

Wherein, the abrasive material dish is located 8 below in one-level abrasive material chamber supports through fixing the support frame 9 on abrasive material bucket 2. The abrasive disc comprises a first abrasive disc 14 and a second abrasive disc 15, a support bearing 18 is arranged between the first abrasive disc 14 and the second abrasive disc 15, the support bearing 18 comprises an outer ring 20 and an inner ring 19, and balls are arranged between the inner ring 19 and the outer ring 20 and can move relatively. The outer ring 20 and the inner ring 19 are staggered in height, the outer ring 20 at one end is higher than the inner ring 19, the outer ring 20 at the other end is lower than the inner ring 19, a certain gap is formed between the first grinding disc 14 and the second grinding disc 15, and friction force generated when the first grinding disc 14 and the second grinding disc 15 are supported is reduced due to the supporting bearing 18. The first grinding disc 14 is provided with a feed inlet 16 at the center, a discharge outlet 17 at the edge of the second grinding disc 15, the first grinding disc 14 and the second grinding disc 15 are driven to rotate by a rotary driving structure, and the first grinding disc 14 and the second grinding disc 15 rotate in opposite directions.

The rotary driving structure comprises a first driving structure and a second driving structure. Wherein, first drive structure includes first rotating electrical machines 21 and the first drive carousel of fixed connection with it, first drive carousel includes first drive gear 22 and first butt joint dish 23, first drive gear 22 and first butt joint dish 23 fixed connection, first drive gear 22 meshes with first mill 14, first butt joint dish 23 with second mill 15 contacts. The second drive structure includes second rotating electrical machines 24 and the second drive carousel of fixed connection with it, the second drive carousel includes second rotating gear 25 and second butt dish 26, second rotating gear 25 and second butt dish 26 fixed connection, second rotating gear 25 and the meshing of second mill 15, second butt dish 26 with first mill 14 contacts. During operation, the first abutting disc 23 and the second abutting disc 26 play a limiting role, and the first grinding disc 14 and the second grinding disc 15 are prevented from shifting during rotation.

A secondary abrasive chamber 10 is provided below the abrasive disc, a screen basket 27 being provided in this secondary abrasive chamber 10. The screen basket 27 is rotated by a third rotary motor 30 provided at the bottom of the abrasive bucket 2. The wall of the sieving basket 27 connected with the sieving basket 27 is provided with a plurality of sieving holes 28, the wall of the sieving holes 28 is provided with a crushing blade 29, and the crushing blade 29 is provided with a plurality of crushing teeth 5. By providing the crushing blade 29 on the screening hole 28, the water-based paint can be further crushed when the centrifugal force generated when the screen basket 27 rotates drives the water-based paint to pass through the screening hole 28, thereby further improving the grinding effect of the water-based paint. It should be noted that the diameter of the screen frame is larger than the diameter of the first grinding disc 14 and the second grinding disc 15, and the water paint can fall into the screen basket 27 after coming out from the outlet 17.

The implementation principle is as follows:

the water paint enters a first-stage grinding cavity 8 from a hopper, and the grinding roller 11 is used for primarily crushing the water paint. The water-based paint then enters from the inlet 16 of the first grinding disc 14, and enters from the outlet 17 of the second grinding disc 15 into the screen basket 27 arranged in the secondary grinding chamber 10 along with the rotation of the first grinding disc 14 and the second grinding disc 15. The water paint may be further crushed by the centrifugal force generated when the sieving basket 27 rotates to drive the water paint through the sieving holes 28. The triply crushed water-based paint can be discharged from the discharge pipe 4.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sand mill for production of water based paint, includes the workstation and locates the abrasive material bucket of workstation top, its characterized in that, the abrasive material bucket includes:

a feed hopper;

the primary grinding cavity is of a square structure and is communicated with the feed hopper, grinding rollers are arranged in the primary grinding cavity, the distance between the grinding rollers only allows water-based paint with the required particle size to pass through, and an arc-shaped material guide plate is arranged above the grinding rollers;

the grinding disc is arranged below the primary grinding cavity, a supporting frame for supporting the grinding disc is arranged on the side wall of the grinding barrel, the grinding disc comprises a first grinding disc and a second grinding disc, a feeding hole is formed in the center of the first grinding disc, a discharging hole is formed in the edge of the second grinding disc, a gap is formed between the first grinding disc and the second grinding disc, the first grinding disc and the second grinding disc are driven to rotate through a rotary driving structure, and the first grinding disc and the second grinding disc are opposite in rotating direction;

2. A sand mill for the production of water-borne coatings according to claim 1, characterized in that: the second grinding disc fixes a large bearing, the outer ring and the inner ring of the bearing are staggered in height, the outer ring at one end is higher than the inner ring, and the outer ring at the other end is lower than the inner ring.

3. A sand mill for the production of water-borne coatings according to claim 1, characterized in that: the rotary drive structure includes a first drive structure and a second drive structure.

4. A sand mill for the production of water-borne coatings according to claim 3, characterized in that: first drive structure includes first rotating electrical machines and the first drive carousel of fixed connection with it, first drive carousel includes first rotation gear and first butt dish, first rotation gear and first butt dish fixed connection, first rotation gear and first mill mesh, first butt dish with the contact of second mill.

5. A sand mill for the production of water-borne coatings according to claim 4, characterized in that: the second drive structure includes second rotating electrical machines and its fixed connection's second drive carousel, the second drive carousel includes second rotating gear and second butt dish, second rotating gear and second butt dish fixed connection, second rotating gear and second mill meshing, second butt dish with first mill contact.

6. A sand mill for the production of water-borne coatings according to claim 1, characterized in that: and a third rotating motor is arranged at the bottom of the grinding material barrel, and a rotating shaft of the third rotating motor penetrates through the bottom wall of the grinding material barrel and is connected with the sieving basket.

7. A sand mill for the production of water-borne coatings according to claim 6, characterized in that: the wall of the sieving basket is provided with a plurality of sieving holes, the wall of the sieving holes is provided with crushing blades, and the crushing blades are provided with a plurality of crushing teeth.