CN218459737U - Multistage grinder of coating - Google Patents

Abstract

The utility model relates to a multistage grinder of coating, be equipped with the feeder hopper including the top, the bottom is equipped with the box of hopper, interior vertical interior axle and the cover of being equipped with in the box is established at interior epaxial outer axle, interior axle passes through drive mechanism antiport with outer axle, interior epaxial being fixed with the upper end opening, be equipped with the rotary drum of sieve mesh on the diapire, be fixed with grinding block one on the rotary drum, outer epaxial lower terminal surface cooperation that is fixed with up end and grinding block one, the diapire up end complex abrasive disc one of lower terminal surface and rotary drum, interior epaxial rotation cover is equipped with the axle sleeve, be fixed with the bracing piece that one end and box inner wall are fixed on the axle sleeve, be equipped with the clearance brush with the diapire contact of rotary drum on the bracing piece, interior lower extreme is fixed with abrasive disc two, be equipped with abrasive disc two complex grinding block two on the inner wall of box, the below activity of abrasive disc two is equipped with the shale shaker of slope, the shale shaker is fixed with vibrating motor's output, be equipped with the clearance mouth on the box lateral wall, the clearance mouth is located the low side position of shale shaker.

Description

Multistage grinder of coating

Technical Field

The utility model relates to a coating grinds technical field, concretely relates to multistage grinder of coating.

Background

The water paint is prepared by using post-emulsified emulsion as film forming matter and through dissolving solvent type resin in organic solvent, dispersing the resin in water through strong mechanical stirring with the help of emulsifier to form emulsion and diluting with water. During the production process of the water-based paint, the water-based paint is often dried and ground into powder by using a grinding device, so that the transportation and the use of the paint are facilitated. The grinding device mainly utilizes the stirring shaft to drive the grinding media in the grinding cylinder to move relatively to generate strong shearing force, so that the materials are ground under the action of force, and the refining of solid components in the coating is realized.

The grinding device mainly utilizes the stirring shaft to drive the grinding medium in the grinding cylinder to move relatively to generate strong shearing force, so that the material is ground under the action of force, and the refining of solid components in the coating is realized. The existing grinding device usually directly carries out one-stage or multi-stage grinding on the water-based paint dry powder after the water-based paint is dried, and the water-based paint dry powder is screened after the grinding is finished so as to meet the particle standard. However, the water-based paint dry powder after the water-based paint is dried has a large number of parts bonded into blocks, the large water-based paint dry powder is usually required to have a larger grinding force or a longer grinding time in grinding in order to meet the required particle standard, if the water-based paint dry powder is directly ground at one stage or multiple stages and then screened again, the grinding load of each stage of grinding medium is larger, the grinding medium at each stage is greatly damaged, the service life of the grinding device is shortened, more water-based paint dry powder particles which do not meet the standard can be obtained, the probability of reworking and continuous grinding is higher, and the grinding efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a multistage grinder of coating to solve the problem that the grinding load of the grinding medium at different levels of above-mentioned grinder is big, the grinding efficiency of water based paint dry powder is low.

The utility model provides a solve above-mentioned technical problem and provide a multistage grinder of coating, the power distribution box comprises a box body, the box top is equipped with the feeder hopper, and the bottom is equipped with out the hopper, vertical interior axle and the cover of being equipped with in the box are established interior epaxial outer axle, interior axle passes through drive mechanism antiport with outer axle, the middle part rigidity of interior axle has upper end open-ended rotary drum, be fixed with grinding block one on the inner wall of rotary drum, be fixed with grinding pan one on the outer axle, the up end of grinding pan one with the cooperation of the lower terminal surface of grinding block one, the lower terminal surface of grinding pan one with the cooperation of the diapire up end of rotary drum, be equipped with the sieve mesh on the diapire of rotary drum, interior epaxial rotation sleeve is equipped with the axle sleeve, the axle sleeve is located the below of rotary drum, be fixed with the bracing piece two of grinding pan complex on the axle sleeve, be equipped with the clearance brush on the bracing piece, the clearance brush keep away from the one end of bracing piece with the diapire contact of rotary drum, the lower extreme of interior axle is fixed with the vibration sieve, the vibration sieve position is equipped with the vibration sieve output in the vibrating screen outlet.

Furthermore, the transmission mechanism comprises a driving bevel gear fixed with the output end of the first rotating motor, a driven bevel gear I and a driven bevel gear II which are positioned at the upper end and the lower end of the driving bevel gear and are in meshed connection with the driving bevel gear, the outer shaft penetrates through the top wall of the box body and is fixed with the driven bevel gear II, and the inner shaft penetrates through the top wall of the box body, the driven bevel gear II and is fixed with the driven bevel gear I in sequence.

Furthermore, the outer shaft is provided with a stirring rod, and the stirring rod is positioned above the first grinding block.

Further, the upper surface of the first grinding block is inclined downwards along the direction of the drum towards the outer shaft.

Furthermore, the upper surface of the second grinding block inclines downwards along the direction from the box body to the inner shaft, and the lower surface of the second grinding block inclines downwards along the direction from the inner shaft to the box body.

Furthermore, an annular sliding groove with a large bottom and a small opening is arranged on the inner side of the top wall of the box body, and an annular sliding block in sliding connection with the annular sliding groove is fixed at the top of the rotary drum.

Furthermore, a feeding box is arranged on the outer side wall of the box body, a feeding port of the feeding box corresponds to the cleaning port, a discharging port of the feeding box corresponds to the feeding port arranged on the side wall of the box body, a discharging end of the feeding port is positioned between the rotary drum and the second grinding block, a conveying auger is arranged in the feeding box, and one end of the conveying auger is fixed with an output end of the second rotating motor.

Adopt the beneficial effects of the utility model are that as follows, through a rotary drum and a abrasive disc antiport, the upper and lower terminal surface that makes abrasive disc one can cooperate with the lower terminal surface of grinding block one, the diapire up end of rotary drum respectively, carries out primary grinding to the water based paint dry powder, and it is long when having not only increased the grinding to the water based paint dry powder, and abrasive disc one with grinding block one, rotary drum can rotate relatively and move the efficiency that can also improve primary grinding. Moreover, the sieve mesh that sets up on the rotary drum diapire can be screened the waterborne coating dry powder through primary grinding, makes its particle size unanimous, grinds for getting into the second grade and makes preparation, has avoided the waterborne coating dry powder of large granule to get into the second grade and has ground. And at this moment, through the arrangement of the cleaning brush, the situation that the sieve pores are blocked and the water-based paint dry powder cannot be screened can be avoided. Furthermore, the utility model discloses set up abrasive disc two and grinding piece two in the rotary drum below, both cooperate and carry out the second grade to the water based paint dry powder and grind, at this moment, because the particle size that gets into the water based paint dry powder that the second grade was ground is unanimous, and the second grade is ground and is not only made the water based paint dry powder grind more meticulous, and the water based paint dry powder reduces the grinding load of abrasive disc two and grinding piece two, can reduce the damage between abrasive disc two and the grinding piece two. And through the arrangement of the vibrating screen, the water-based paint dry powder after secondary grinding can be screened, so that the water-based paint dry powder meets the requirements. To sum up, the utility model discloses not only can improve the grinding efficiency of water based paint dry powder, improve the grinding precision of water based paint dry powder, and can reduce multistage grinder's damage, prolong multistage grinder's life.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Drawings

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

fig. 2 is an enlarged detail view of a in fig. 1.

In the drawings: 100-box body, 101-feed hopper, 102-discharge hopper, 103-support rod, 1031-cleaning brush, 104-grinding block II, 105-cleaning opening, 106-annular chute, 107-feeding opening, 200-inner shaft, 201-rotary drum, 2011-grinding block I, 2012-screen opening, 2013-annular slide block, 202-shaft sleeve, 203-grinding disc II, 300-outer shaft, 301-grinding disc I, 302-stirring rod, 400-transmission mechanism, 401-rotating motor I, 402-driving bevel gear, 403-driven bevel gear I, 404-driven bevel gear II, 500-vibrating screen, 501-vibrating motor, 600-feeding box, 601-conveying auger and 602-rotating motor II.

Detailed Description

Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 2, the utility model provides a multistage grinder of coating, including box 100, box 100 top is equipped with feeder hopper 101, and feeder hopper 101 is used for the feeding. The bottom is provided with a discharge hopper 102 for discharging the water-based paint dry powder meeting the particle standard.

An inner shaft 200 and an outer shaft 300 sleeved on the inner shaft 200 are vertically arranged in the box body 100, the inner shaft 200 and the outer shaft 300 reversely rotate through a transmission mechanism 400, specifically, the transmission mechanism 400 includes a driving bevel gear 402 fixed to an output end of a first rotating motor 401, and a first driven bevel gear 403 and a second driven bevel gear 404 which are located at upper and lower ends of the driving bevel gear 402 and engaged with the driving bevel gear 402, the outer shaft 300 is fixed to the second driven bevel gear 404 through a top wall of the box body 100, and the inner shaft 200 is fixed to the first driven bevel gear 403 through the top wall of the box body 100, the second driven bevel gear 404 and the top wall of the box body 100 in sequence. At this time, the first rotating electrical machine 401 provides rotating power to the drive bevel gear 402, and when the drive bevel gear 402 rotates, the second driven bevel gear 404 and the first driven bevel gear 403 are driven to rotate in opposite directions, so as to drive the outer shaft 300 and the inner shaft 200 to rotate in opposite directions.

A rotating cylinder 201 with an open upper end is fixed at the middle position of the inner shaft 200, preferably, an annular sliding groove 106 with a large bottom and a small opening is arranged on the inner side of the top wall of the box 100, and an annular sliding block 2013 which is slidably connected with the annular sliding groove 106 is fixed at the top of the rotating cylinder 201. At this time, the rotating cylinder 201 is in sliding connection with the top of the box 100, so that the stability of the rotating cylinder 201 is improved, and the situation that the grinding effect is influenced by the shaking of the rotating cylinder 201 after the water-based paint dry powder is filled in the rotating cylinder is avoided.

Be fixed with grinding block 2011 on the inner wall of rotary drum 201, at this moment, grinding block 2011 sets up around the rotary drum 201 inner wall, and the middle part trompil supplies outer axle 300 to pass, has the removal of space water supply nature coating dry powder between outer axle 300 and grinding block 2011. Further, the upper surface of the first grinding block 2011 is inclined downwards along the direction of the outer shaft 300 of the rotating drum 201. At this time, the dry powder of the water-based paint is convenient to gather towards the outer shaft 300 and enter between the first grinding disk 301 and the first grinding block 2011. A first grinding disc 301 is fixed on the outer shaft 300, the upper end face of the first grinding disc 301 is matched with the lower end face of the first grinding block 2011, and the lower end face of the first grinding disc 301 is matched with the upper end face of the bottom wall of the rotary drum 201. Because the inner shaft 200 and the outer shaft 300 which are vertically arranged in the box 100 reversely rotate through the transmission mechanism 400, the rotary drum 201 is fixed on the inner shaft 200, the first grinding block 2011 is fixed on the inner wall of the rotary drum 201, the first grinding disc 301 is fixed on the outer shaft 300, when the inner shaft 200 reversely rotates with the outer shaft 300, the first grinding disc 301 reversely rotates with the rotary drum 201, the upper end face of the first grinding disc 301 reversely rotates with the lower end face of the first grinding block 2011 positioned on the rotary drum 201, the water-based paint dry powder is ground, and the lower end face of the first grinding disc 301 reversely rotates with the upper end face of the bottom wall of the rotary drum 201, so that the water-based paint dry powder is further ground. At this time, the dry powder of the water-based paint enters the rotating cylinder 201 through the feed hopper 101, enters between the first polishing disc 301 and the first polishing block 2011 for primary polishing, and then enters between the first polishing disc 301 and the upper end face of the bottom wall of the rotating cylinder 201 from the outer wall of the first polishing disc 301 for secondary polishing.

The outer shaft 300 is provided with a stirring rod 302, and the stirring rod 302 is positioned above the first grinding block 2011. At this time, when the water-based paint dry powder enters the drum 201, the stirring rod 302 stirs and sprinkles the water-based paint, so that the existence of large water-based paint dry powder is reduced, and the primary grinding efficiency is further improved.

Be equipped with sieve mesh 2012 on the diapire of rotary drum 201, sieve mesh 2012 is used for carrying out the aqueous coating dry powder of primary grinding in the rotary drum 201 and screens, and the aqueous coating dry powder that accords with the requirement sieves out from rotary drum 201 bottom, and the aqueous coating dry powder that does not accord with the requirement stays in rotary drum 201, and the lower terminal surface of grinding pan 301 cooperates with the diapire up end of rotary drum 201, continues to grind the aqueous coating dry powder, falls down from sieve mesh 2012 after it accords with the requirement, accomplishes the preliminary screening to the aqueous coating dry powder.

A shaft sleeve 202 is rotatably sleeved on the inner shaft 200, the shaft sleeve 202 is positioned below the rotating drum 201, a supporting rod 103 with one end fixed with the inner wall of the box 100 is fixed on the shaft sleeve 202, a cleaning brush 1031 is arranged on the supporting rod 103, and one end of the cleaning brush 1031 far away from the supporting rod 103 is in contact with the bottom wall of the rotating drum 201. At this moment, one end of the supporting rod 103 is fixed with the inner wall of the box 100, the other end of the supporting rod is rotatably connected with the inner shaft 200, when the inner shaft 200 rotates, the rotating drum 201 is driven to rotate, relative motion occurs between the rotating drum 201 and the cleaning brush 1031, the cleaning brush 1031 cleans the bottom wall of the rotating drum 201, and the dry powder of the water-based paint is prevented from blocking the sieve mesh 2012.

A second grinding disc 203 is fixed at the lower end of the inner shaft 200, and a second grinding block 104 matched with the second grinding disc 203 is arranged on the inner wall of the box body 100. The water-based paint dry powder after primary grinding enters between the second grinding disc 203 and the second grinding block 104, and secondary grinding is carried out on the water-based paint dry powder, at the moment, because the water-based paint dry powder is primarily screened, the particle size of the water-based paint dry powder tends to be consistent, and the abrasion between the second grinding disc 203 and the second grinding block 104 can be reduced. Preferably, the upper surface of the second grinding block 104 is inclined downwards along the direction from the box 100 to the inner shaft 200, and the lower surface of the second grinding block 104 is inclined downwards along the direction from the inner shaft 200 to the box 100. At this time, when the water-based paint dry powder subjected to primary grinding falls onto the upper surface of the second grinding block 104, the water-based paint dry powder can move along the upper surface of the second grinding block 104 to enter between the second grinding disc 203 and the second grinding block 104, and then move along the upper surface of the second grinding disc 203 until the water-based paint dry powder falls after the secondary grinding is completed.

An inclined vibrating screen 500 is movably arranged below the second grinding disc 203, and the vibrating screen 500 is fixed with the output end of a vibrating motor 501. The water-based paint dry powder ground by the second stage falls on the vibrating screen 500, and the vibrating motor 501 drives the vibrating screen 500 to vibrate, so that the water-based paint dry powder with the particle diameter falls into the bottom of the box body 100 and is discharged out of the box body 100 through the discharge hopper 102, and the water-based paint dry powder can be prevented from being accumulated on the vibrating screen 500 to block the vibrating screen 500. In order to perform multi-stage screening on the water-based paint dry powder, the pore diameter of the sieve pore 2012 is larger than that of the vibrating sieve 500.

A cleaning opening 105 is formed in the side wall of the box body 100, and the cleaning opening 105 is located at the lower end of the vibrating screen 500. At this time, since the vibrating screen 500 is disposed obliquely, the water-based paint dry powder which does not meet the particle requirements moves along the vibrating screen 500 in the direction of the cleaning opening 105 and is discharged from the cleaning opening 105. Further, a feeding box 600 is arranged on the outer side wall of the box body 100, a feeding hole of the feeding box 600 corresponds to the cleaning hole 105, a discharging hole of the feeding box 600 corresponds to a feeding hole 107 formed in the side wall of the box body 100, a discharging end of the feeding hole 107 is located between the rotary drum 201 and the second grinding block 104, a conveying auger 601 is arranged in the feeding box 600, and one end of the conveying auger 601 is fixed to an output end of the second rotating motor 602. At this time, the water-based paint dry powder which is discharged from the cleaning port 105 and does not meet the grinding requirement is conveyed by the conveying auger 601 in the feeding box 600, moves to the upper part of the second grinding block 104, falls onto the second grinding block 104 again, and enters between the second grinding block 104 and the second grinding disc 203 for grinding until the water-based paint dry powder meets the grinding requirement.

In this embodiment, the gap between the lower end face of the first polishing block 2011 and the upper end face of the first polishing disk 301, the gap between the lower end face of the first polishing disk 301 and the upper end face of the bottom wall of the rotating drum 201, and the gap between the second polishing disk 203 and the second polishing block 104 are gradually reduced to adapt to the change of the particle size of the water-based paint dry powder in different polishing stages, so that the water-based paint dry powder can be gradually polished.

Adopt the beneficial effects of the utility model are as follows, through rotary drum 201 and a grinding miller 301 antiport, make the upper and lower terminal surface of a grinding miller 301 can cooperate with the lower terminal surface of a grinding piece 2011, the diapire up end of rotary drum 201 respectively and carry out primary grinding to the water based paint dry powder, long when not only having increased the grinding to the water based paint dry powder, and a grinding miller 301 can also improve primary grinding's efficiency with a grinding piece 2011, rotary drum 201 relative motion. Moreover, the sieve mesh 2012 that sets up on the rotary drum 201 diapire can be to the aqueous coating dry powder through primary grinding screening, makes its particle size unanimous, for getting into the second grade and grind and make preparation, has avoided the aqueous coating dry powder of large granule to get into the second grade and has ground. And at this moment, through the arrangement of the cleaning brush 1031, the blockage of the sieve holes 2012 can be avoided, and the condition of screening the water-based paint dry powder can not be realized. Furthermore, the utility model discloses set up two grinding disks 203 and two grinding pieces 104 in rotary drum 201 below, both cooperate and carry out the second grade grinding to the water based paint dry powder, this moment, because the particle size that gets into the water based paint dry powder that the second grade ground is unanimous, the second grade is ground and is not only made the water based paint dry powder grind more meticulous, and the water based paint dry powder reduces grinding load to two grinding disks 203 and two grinding pieces 104, can reduce the damage between two grinding disks 203 and two grinding pieces 104. And through the setting of shale shaker 500, can sieve the waterborne coating dry powder after the second grade grinds, make it meet the requirements. To sum up, the utility model discloses not only can improve the grinding efficiency of water based paint dry powder, improve the grinding precision of water based paint dry powder, and can reduce multistage grinder's damage, prolong multistage grinder's life.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The multistage grinding device for the coating is characterized by comprising a box body (100), wherein a feed hopper (101) is arranged at the top of the box body (100), a discharge hopper (102) is arranged at the bottom of the box body (100), an inner shaft (200) and an outer shaft (300) sleeved on the inner shaft (200) are vertically arranged in the box body (100), the inner shaft (200) and the outer shaft (300) reversely rotate through a transmission mechanism (400),

a rotating drum (201) with an opening at the upper end is fixed in the middle of the inner shaft (200), a first grinding block (2011) is fixed on the inner wall of the rotating drum (201), a first grinding disc (301) is fixed on the outer shaft (300), the upper end face of the first grinding disc (301) is matched with the lower end face of the first grinding block (2011), the lower end face of the first grinding disc (301) is matched with the upper end face of the bottom wall of the rotating drum (201), and sieve holes (2012) are arranged on the bottom wall of the rotating drum (201),

a shaft sleeve (202) is rotatably sleeved on the inner shaft (200), the shaft sleeve (202) is positioned below the rotary drum (201), a supporting rod (103) with one end fixed with the inner wall of the box body (100) is fixed on the shaft sleeve (202), a cleaning brush (1031) is arranged on the supporting rod (103), one end of the cleaning brush (1031) far away from the supporting rod (103) is contacted with the bottom wall of the rotary drum (201),

a second grinding disc (203) is fixed at the lower end of the inner shaft (200), a second grinding block (104) matched with the second grinding disc (203) is arranged on the inner wall of the box body (100),

the lower part of the second grinding disc (203) is movably provided with an inclined vibrating screen (500), the vibrating screen (500) is fixed with the output end of a vibrating motor (501), the side wall of the box body (100) is provided with a cleaning opening (105), and the cleaning opening (105) is located at the lower end position of the vibrating screen (500).

2. The multistage grinding apparatus for paints according to claim 1, wherein the transmission mechanism (400) comprises a first drive bevel gear (402) fixed to an output end of a first rotating motor (401), and a first driven bevel gear (403) and a second driven bevel gear (404) which are located at upper and lower ends of the first drive bevel gear (402) and engaged with the first drive bevel gear (402), the outer shaft (300) is fixed to the second driven bevel gear (404) through a top wall of the housing (100), and the inner shaft (200) is fixed to the first driven bevel gear (403) through the top wall of the housing (100) and the second driven bevel gear (404) in sequence.

3. The multistage grinding device for paints according to claim 1, characterized in that a stirring rod (302) is provided on the outer shaft (300), and the stirring rod (302) is located above the first grinding block (2011).

4. The multistage grinding apparatus for paints according to claim 1, wherein the upper surface of the first grinding block (2011) is inclined downward in the direction of the outer axis (300) of the drum (201).

5. The multistage grinding device for paints according to claim 1, wherein the upper surface of the second grinding block (104) is inclined downward in the direction of the inner shaft (200) of the tank (100), and the lower surface of the second grinding block (104) is inclined downward in the direction of the inner shaft (200) of the tank (100).

6. The multistage grinding device for paints according to claim 1, characterized in that the inner side of the top wall of the box (100) is provided with an annular chute (106) with a large bottom and a small opening, and the top of the rotary drum (201) is fixed with an annular slide block (2013) which is connected with the annular chute (106) in a sliding way.

7. The multistage grinding device for the coating according to claim 1, wherein a feeding box (600) is arranged on the outer side wall of the box body (100), a feeding hole of the feeding box (600) corresponds to the cleaning hole (105), a discharging hole of the feeding box (600) corresponds to a feeding hole (107) formed in the side wall of the box body (100), a discharging end of the feeding hole (107) is located between the rotary drum (201) and the second grinding block (104), a conveying auger (601) is arranged in the feeding box (600), and one end of the conveying auger (601) is fixed with the output end of a second rotating motor (602).

Images