CN112370987A

CN112370987A - Pulping device for water-based paint production and using method thereof

Info

Publication number: CN112370987A
Application number: CN202011421815.9A
Authority: CN
Inventors: 刘志超; 孙振; 张强
Original assignee: Henan Songyuan Paint Co ltd
Current assignee: Henan Songyuan Paint Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-02-19

Abstract

The invention discloses a grinding device for producing an aqueous paint vehicle and a using method thereof. The invention utilizes the circulating motor and the circulating pump head to drive the water and the ground-grinding paint raw materials of the grinding barrel to circularly flow through the conveying guide pipe, the T-shaped guide pipe and the guide pipe, so that the water and the paint can be quickly fused, and utilizes the rotation of two groups of forward grinding cutters and reverse grinding cutters on the grinding shaft, so that the water-soluble paint raw materials in the grinding barrel can be quickly fused with the water phase to form slurry.

Description

Pulping device for water-based paint production and using method thereof

Technical Field

The invention relates to the field of water-based paint production, in particular to a grinding device for water-based paint production and a using method thereof.

Background

The water-based paint takes water as a solvent and acrylic acid modified water-based polyurethane as a main raw material, is harmless to human bodies, does not pollute the environment, is plump in paint film, glittering and translucent, has good flexibility, and has the characteristics of water resistance, wear resistance, aging resistance, yellowing resistance, quick drying, convenient use and the like; when the water-based paint is produced, the water and the paint need to be fused and ground to form slurry, but when the traditional grinding device is used for grinding, the mixing efficiency of the paint raw material and the water is low, so that the slurry is thin and uneven in consistency, and the effectiveness rate and the quality of the water-based paint are affected.

Disclosure of Invention

The invention aims to solve the problems and provide a refining device for producing water-based paint and a using method thereof.

The invention realizes the purpose through the following technical scheme:

a grinding device for producing water-based paint, which comprises a blanking mechanism, a driving mechanism for providing power for grinding the water-based paint, a base, a butterfly valve and a fixing frame, the blanking mechanism is positioned at one side of the base, the fixing frame is positioned at the other side of the base, the butterfly valve is positioned below the base, the driving mechanism is positioned above the fixed frame, and also comprises a circulating mechanism and a pulping mechanism, the pulping mechanism comprises a pulping barrel, a pulping shaft, a forward pulping knife and a reverse pulping knife, the pulping barrel is arranged at the top of the base, the upper side of the pulping shaft is arranged at one end of the fixed frame, the lower end of the pulping shaft is positioned at the center of the pulping barrel, the two forward pulping knives and the two reverse pulping knives are respectively arranged at the lower side of the pulping shaft, and the forward pulping knives and the reverse pulping knives are alternately distributed; circulation mechanism includes circulation motor, circulation pump head, delivery conduit, honeycomb duct, T type pipe, install T type pipe upper end grind thick liquid barrel head central point and put, install circulation pump head feed inlet T type pipe rear end, the delivery conduit lower extreme is installed circulation pump head discharge gate, three the honeycomb duct is installed delivery conduit upper end just is located grind thick liquid barrel inside lateral wall on, the circulation motor is installed circulation pump head rotating part.

Preferably: the blanking mechanism comprises a blanking box, a supporting seat, a blanking motor and a screw rod, wherein the supporting seat is located on one side of the base, the blanking box is connected to the top of the supporting seat through a bolt, the blanking motor is connected to one side of the blanking box through a bolt, and one end of the screw rod is connected to the bottom of the inner side of the blanking box through a bearing.

So set up, utilize the supporting seat comes right the unloading case and its inside water paint raw materials support, utilize simultaneously unloading motor rotating part drives the screw rod rotates to can be quantitative add paint raw materials to in the mill thick liquid bucket.

Preferably: actuating mechanism includes driving motor, sprocket, chain, driving motor passes through bolted connection and is in the mount upper end, two the sprocket passes through the key-type connection and is in driving motor rotation portion with the mill thick liquid axle upper end, the chain sets up two the sprocket outside.

So set up, utilize driving motor rotation portion drives the sprocket rotates, through the sprocket with the transmission of chain (belt) drives the grinding thick liquid axle rotates.

Preferably: actuating mechanism includes driving motor, band pulley, belt, driving motor passes through bolted connection and is in the mount upper end, two the band pulley is in through the key-type connection driving motor rotation portion with the mill thick liquid axle upper end, the belt sets up two the band pulley outside.

According to the arrangement, the driving motor rotating part is used for driving the belt wheel to rotate, and the grinding shaft is driven to rotate through the transmission of the belt wheel and the belt.

Preferably: the butterfly valve is installed at the front end of the T-shaped guide pipe, the lower end of the fixing frame is connected with the base in a welding mode, and grooves are formed in the front side and the rear side of the bottom of the base.

According to the arrangement, the driving mechanism and the grinding shaft are supported and fixed by the fixing frame, and the ground paint is guided out by opening and closing the butterfly valve.

Preferably: the pulping barrel is connected with the base through a bolt, the pulping shaft is connected with the fixing frame through a bearing, the forward pulping knife is connected with the pulping shaft through welding, and the reverse pulping knife is connected with the pulping shaft through welding.

According to the arrangement, the rotation of the pulping shaft is utilized to drive the two groups of forward pulping knives and reverse pulping knives to rotate, and the paint raw materials in the pulping barrel are stirred and pulped through the mutually reverse cutting edges on the forward pulping knives and the reverse pulping knives.

Preferably: t type pipe with the mill thick liquid bucket passes through the clamp connection, circulation pump head feed inlet with T type pipe passes through the clamp connection, the delivery conduit with circulation pump head discharge gate passes through the clamp connection, the honeycomb duct with the delivery conduit passes through welded connection, the circulation motor with circulation pump head rotation portion passes through the coupling joint.

According to the arrangement, the T-shaped guide pipe is used for guiding the paint raw materials and the water in the pulping barrel into the circulating pump head, the circulating pump head is driven to rotate by the rotating part of the circulating motor, so that the paint raw materials and the water are guided into the guide pipe through the conveying guide pipe, and the paint raw materials and the water are guided into the pulping barrel again from the upper side of the pulping barrel through the guide pipe.

Preferably: the draft tube is an annular hollow round tube, and a notch is formed in the side face, close to the center of the pulping barrel, of the draft tube.

So set up, utilize notch on the honeycomb duct with lacquer raw materials and water conservancy diversion to the defibrination bucket central point put to realize the fusion of lacquer raw materials and water.

Preferably: the lower end of the blanking box is of a circular arc structure, and a right-angled bent pipe is arranged on one side of the blanking box, which is close to the pulping mechanism.

By the arrangement, the screw rod can rotate on the inner side of the conveying guide pipe conveniently by utilizing the circular arc structure at the lower end of the conveying guide pipe.

The invention also provides a using method of the refining device for the water-based paint production, when in use, firstly, a proper amount of water is injected into the refining barrel, then, the paint raw material is added into the lower material box, at the moment, the rotating part of the blanking motor drives the screw rod to rotate, the paint raw material is guided into the refining barrel through the bent pipe of the lower material box through the rotation of the screw rod, simultaneously, the driving mechanism drives the refining shaft to rotate, the forward refining knife and the reverse refining knife are driven to rotate in the water in the refining barrel through the rotation of the refining shaft, the water and the paint raw material are mixed by the rotation of the forward refining knife and the reverse refining knife, and the water in the refining barrel forms a plurality of groups of turbulence flows by the forward refining knife and the reverse refining knife, thereby, the mixing efficiency of the paint raw material and the water is improved, and then the water and the paint raw material in the refining barrel can be mixed into slurry, when mixing, the circulating pump head is driven to rotate by the rotating part of the circulating motor, so that water and paint raw materials in the pulping barrel are pumped into the conveying guide pipe by the circulating pump head through the T-shaped guide pipe, then the water and the paint raw materials are guided into the guide pipe through the conveying guide pipe, and the paint raw materials and the water are guided into the pulping barrel again through the three guide pipes, so that the mixing efficiency of the paint raw materials and the water is improved; after the water and the paint raw materials in the grinding barrel are ground and mixed for a certain time, the rotation of the circulating motor, the conveying guide pipe and the driving motor is stopped, and therefore the butterfly valve is opened to lead out the slurry through the front end of the T-shaped guide pipe.

Compared with the prior art, the invention has the following beneficial effects:

1. the circulating motor and the circulating pump head are utilized to drive the water and the ground-grinding paint raw materials of the grinding barrel to circularly flow through the conveying guide pipe, the T-shaped guide pipe and the guide pipe, so that the water and the paint can be quickly fused;

2. the rotation of two groups of forward pulping knives and reverse pulping knives on the pulping shaft is utilized, so that the water-soluble paint raw materials in the pulping barrel can be quickly fused with water phase to form pulp.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment 1 of a refining device for water-based paint production, which is disclosed by the invention;

FIG. 2 is a schematic structural diagram of an embodiment 2 of the refining device for producing the water-based paint of the invention;

fig. 3 is a partial part diagram of an embodiment 1 of a driving mechanism of a refining device for producing the water-based paint vehicle, which is disclosed by the invention;

fig. 4 is a partial part diagram of an embodiment 2 of a driving mechanism of a refining device for producing the water-based paint vehicle, which is disclosed by the invention;

fig. 5 is a partial cross-sectional view of a screw of a refining apparatus for the production of water-based paints according to the present invention;

FIG. 6 is a partial detail view of a butterfly valve of a refining apparatus for aqueous paint production according to the present invention;

fig. 7 is a partial part diagram of a circulating mechanism of a refining device for water-based paint production according to the invention;

fig. 8 is a partial part diagram of a refining mechanism of a refining device for water-based paint production.

The reference numerals are explained below:

1. a circulating mechanism; 2. a pulping mechanism; 3. a blanking mechanism; 4. a drive mechanism; 5. a base; 6. a butterfly valve; 7. a fixed mount; 11. a circulating motor; 12. a circulating pump head; 13. a delivery catheter; 14. a flow guide pipe; 15. a T-shaped catheter; 21. a grinding barrel; 22. grinding the slurry shaft; 23. a forward pulping knife; 24. a reverse pulping knife; 31. a blanking box; 32. a supporting seat; 33. a blanking motor; 34. a screw; 41. a drive motor; 42. a sprocket; 43. a chain; 412. a pulley; 413. a belt.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be further described with reference to the accompanying drawings in which:

a pulping device for producing water-based paint comprises a blanking mechanism 3, a driving mechanism 4 used for providing power for pulping the water-based paint, a base 5, a butterfly valve 6 and a fixing frame 7, wherein the blanking mechanism 3 is positioned on one side of the base 5, the fixing frame 7 is positioned on the other side of the base 5, the butterfly valve 6 is positioned below the base 5, the driving mechanism 4 is positioned above the fixing frame 7, the pulping device also comprises a circulating mechanism 1 and a pulping mechanism 2, the pulping mechanism 2 comprises a pulping barrel 21, a pulping shaft 22, a forward pulping knife 23 and a reverse pulping knife 24, the pulping barrel 21 is arranged at the top of the base 5, the upper side of the pulping shaft 22 is arranged at one end of the fixing frame 7, the lower end of the pulping shaft 22 is positioned at the center of the pulping barrel 21, the two forward pulping knives 23 and the reverse pulping knives 24 are respectively arranged at the lower side of the pulping shaft; the circulating mechanism 1 comprises a circulating motor 11, a circulating pump head 12, a conveying pipe 13, a guide pipe 14 and a T-shaped pipe 15, wherein the upper end of the T-shaped pipe 15 is arranged at the center of the bottom of the pulping barrel 21, a feed inlet of the circulating pump head 12 is arranged at the rear end of the T-shaped pipe 15, the lower end of the conveying pipe 13 is arranged at a discharge outlet of the circulating pump head 12, the three guide pipes 14 are arranged at the upper end of the conveying pipe 13 and are positioned on the inner side wall of the pulping barrel 21, and the circulating motor 11 is arranged at the.

Example 1

As shown in fig. 1, 3, 5, 6, 7 and 8, the blanking mechanism 3 includes a blanking box 31, a supporting seat 32, a blanking motor 33 and a screw 34, the supporting seat 32 is located at one side of the base 5, the blanking box 31 is connected to the top of the supporting seat 32 through a bolt, the blanking motor 33 is connected to one side of the blanking box 31 through a bolt, one end of the screw 34 is connected to the bottom of the inner side of the blanking box 31 through a bearing, the supporting seat 32 is used for supporting the blanking box 31 and the aqueous paint raw material therein, and the rotating part of the blanking motor 33 is used for driving the screw 34 to rotate, so that the paint raw material can be quantitatively added into the refining barrel 21; the driving mechanism 4 comprises a driving motor 41, chain wheels 42 and a chain 43, the driving motor 41 is connected to the upper end of the fixed frame 7 through bolts, the two chain wheels 42 are connected to the rotating part of the driving motor 41 and the upper end of the grinding shaft 22 through keys, the chain 43 is arranged on the outer sides of the two chain wheels 42, the rotating part of the driving motor 41 is used for driving the chain wheels 42 to rotate, and the driving of the chain wheels 42 and a chain belt 413 is used for driving the grinding shaft 22 to rotate; the butterfly valve 6 is arranged at the front end of the T-shaped guide pipe 15, the lower end of the fixing frame 7 is connected with the base 5 in a welding mode, grooves are formed in the front side and the rear side of the bottom of the base 5, the fixing frame 7 is used for supporting and fixing the driving mechanism 4 and the grinding shaft 22, and the grinding paint is guided out by opening and closing the butterfly valve 6; the pulping barrel 21 is connected with the base 5 through a bolt, the pulping shaft 22 is connected with the fixed frame 7 through a bearing, the forward pulping knives 23 are connected with the pulping shaft 22 through welding, the reverse pulping knives 24 are connected with the pulping shaft 22 through welding, the two sets of forward pulping knives 23 and the reverse pulping knives 24 are driven to rotate by the rotation of the pulping shaft 22, and the paint raw materials in the pulping barrel 21 are stirred and pulped through the mutually reverse cutting edges on the forward pulping knives 23 and the reverse pulping knives 24; the T-shaped guide pipe 15 is connected with the pulping barrel 21 through a clamp, a feeding hole of the circulating pump head 12 is connected with the T-shaped guide pipe 15 through a clamp, the conveying guide pipe 13 is connected with a discharging hole of the circulating pump head 12 through a clamp, the guide pipe 14 is connected with the conveying guide pipe 13 through welding, the circulating motor 11 is connected with a rotating part of the circulating pump head 12 through a coupler, paint raw materials and water in the pulping barrel 21 are led into the circulating pump head 12 through the T-shaped guide pipe 15, the circulating pump head 12 is driven to rotate through the rotating part of the circulating motor 11, the paint raw materials and the water are led into the guide pipe 14 through the conveying guide pipe 13, and the paint raw materials and the water are led in from the upper part of the; the flow guide pipe 14 is an annular hollow round pipe, a notch is formed in the side face, close to the center of the pulping barrel 21, of the flow guide pipe 14, and paint raw materials and water are guided to the center of the pulping barrel 21 through the notch in the flow guide pipe 14, so that the paint raw materials and the water are fused; the lower end of the blanking box 31 is of a circular arc structure, and a right-angle bent pipe is arranged on one side of the blanking box 31 close to the refining mechanism 2, so that the rotation of the screw 34 on the inner side is facilitated by the circular arc structure at the lower end of the conveying conduit 13.

A method for using a refining device for producing water-based paint vehicle comprises the following steps: when in use, firstly, a proper amount of water is filled into the pulping barrel 21, then the paint raw material is added into the blanking box 31, at the moment, the rotating part of the blanking motor 33 drives the screw 34 to rotate, the paint raw material is guided into the pulping barrel 21 through the bent pipe of the blanking box 31 through the rotation of the screw 34, meanwhile, the rotating part of the driving motor 41 drives the pulping shaft 22 to rotate through the transmission of the chain wheel 42 and the chain 42, the forward refining knife 23 and the reverse refining knife 24 are driven to rotate in the water in the pulping barrel 21 through the rotation of the refining shaft 22, the water and the paint raw material are mixed through the rotation of the forward refining knife 23 and the reverse refining knife 24, meanwhile, in the rotation process of the pulping shaft 22, a plurality of groups of turbulent flows are formed for the water in the pulping barrel 21 through the forward refining knife 23 and the reverse refining knife 24, so as to improve the mixing efficiency of the paint raw material and the water, and the paint raw material in the pulping barrel 21 can be mixed into pulp, when mixing, the circulating pump head 12 is driven to rotate by the rotating part of the circulating motor 11, so that the circulating pump head 12 pumps water and paint raw materials in the pulping barrel 21 into the conveying pipe 13 through the T-shaped pipe 15, then the water and the paint raw materials are guided into the guide pipe 14 through the conveying pipe 13, and the paint raw materials and the water are guided into the pulping barrel 21 again through the three guide pipes 14, so that the mixing efficiency of the paint raw materials and the water is improved; after the water and the paint raw materials in the pulping barrel 21 are grinded and mixed for a certain time, the rotation of the circulating motor 11, the conveying conduit 13 and the driving motor 41 is stopped, so that the butterfly valve 6 is opened to lead out the pulp through the front end of the T-shaped conduit 15.

Example 2

As shown in fig. 2 and 4, the difference between the embodiment 2 and the embodiment 1 is that the driving mechanism 4 includes a driving motor 41, belt wheels 412, and a belt 413, the driving motor 41 is connected to the upper end of the fixing frame 7 by bolts, the two belt wheels 412 are connected to the rotating part of the driving motor 41 and the upper end of the refining shaft 22 by keys, the belt 413 is disposed outside the two belt wheels 412, the belt wheels 412 are driven to rotate by the rotating part of the driving motor 41, and the refining shaft 22 is driven to rotate by the transmission of the belt wheels 412 and the belt 413.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A refining device for water-based paint production comprises a blanking mechanism (3), a driving mechanism (4) for providing power for refining water-based paint, a base (5), a butterfly valve (6) and a fixing frame (7), wherein the blanking mechanism (3) is positioned on one side of the base (5), the fixing frame (7) is positioned on the other side of the base (5), the butterfly valve (6) is positioned below the base (5), and the driving mechanism (4) is positioned above the fixing frame (7), and is characterized in that: the pulping mechanism (2) comprises a pulping barrel (21), a pulping shaft (22), a forward pulping knife (23) and a reverse pulping knife (24), wherein the pulping barrel (21) is installed at the top of the base (5), the upper side of the pulping shaft (22) is installed at one end of the fixed frame (7), the lower end of the pulping shaft (22) is located at the central position of the pulping barrel (21), the two forward pulping knives (23) and the two reverse pulping knives (24) are respectively installed at the lower sides of the pulping shaft (22), and the forward pulping knives (23) and the reverse pulping knives (24) are alternately distributed; circulation mechanism (1) is including circulating motor (11), circulation pump head (12), delivery conduit (13), honeycomb duct (14), T type pipe (15), install T type pipe (15) upper end mill thick liquid bucket (21) bottom central point puts, install circulation pump head (12) feed inlet T type pipe (15) rear end, delivery conduit (13) lower extreme is installed circulation pump head (12) discharge gate, it is three honeycomb duct (14) are installed delivery conduit (13) upper end just is located mill thick liquid bucket (21) inside lateral wall is last, install circulating motor (11) circulation pump head (12) rotating part.

2. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: unloading mechanism (3) are including unloading case (31), supporting seat (32), unloading motor (33), screw rod (34), supporting seat (32) are located one side of base (5), unloading case (31) pass through bolted connection be in supporting seat (32) top, unloading motor (33) pass through bolted connection be in unloading case (31) one side, screw rod (34) one end is passed through the bearing and is connected unloading case (31) inboard bottom.

3. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: actuating mechanism (4) are including driving motor (41), sprocket (42), chain (43), driving motor (41) pass through bolted connection and are in mount (7) upper end, two sprocket (42) pass through the key-type connection driving motor (41) rotation portion with pulping axle (22) upper end, chain (43) set up two the sprocket (42) outside.

4. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: actuating mechanism (4) are including driving motor (41), band pulley (412), belt (413), driving motor (41) pass through bolted connection in mount (7) upper end, two band pulley (412) are in through the key-type connection driving motor (41) rotation portion with grinding thick liquid axle (22) upper end, belt (413) set up two the band pulley (412) outside.

5. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: the butterfly valve (6) is installed at the front end of the T-shaped guide pipe (15), the lower end of the fixing frame (7) is connected with the base (5) in a welding mode, and grooves are formed in the front side and the rear side of the bottom of the base (5).

6. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: the pulping barrel (21) is connected with the base (5) through a bolt, the pulping shaft (22) is connected with the fixing frame (7) through a bearing, the forward pulping knife (23) is connected with the pulping shaft (22) through welding, and the reverse pulping knife (24) is connected with the pulping shaft (22) through welding.

7. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: t type pipe (15) with pulping bucket (21) passes through the clamp connection, circulation pump head (12) feed inlet with T type pipe (15) pass through the clamp connection, delivery conduit (13) with circulation pump head (12) discharge gate passes through the clamp connection, honeycomb duct (14) with delivery conduit (13) pass through welded connection, circulating motor (11) with circulation pump head (12) rotation portion passes through the coupling joint.

8. A refining apparatus for the production of water-based paints according to claim 1 characterised in that: the honeycomb duct (14) is an annular hollow round tube, and a notch is formed in the side face, close to the center of the pulping barrel (21), of the honeycomb duct (14).

9. A refining apparatus for the production of water-based paints according to claim 2 characterised in that: the lower end of the blanking box (31) is of a circular arc structure, and a right-angled bent pipe is arranged on one side, close to the pulping mechanism (2), of the blanking box (31).

10. The use method of the refining device for the production of the water-based paint vehicle is characterized in that: when the device is used, firstly, a proper amount of water is filled into the pulping barrel (21), then, paint raw materials are added into the blanking box (31), at the moment, the rotating part of the blanking motor (33) drives the screw (34) to rotate, the paint raw materials are guided into the pulping barrel (21) through the bent pipe of the blanking box (31) through the rotation of the screw (34), meanwhile, the driving mechanism (4) drives the pulping shaft (22) to rotate, the forward pulping knife (23) and the reverse pulping knife (24) are driven to rotate in the water in the pulping barrel (21) through the rotation of the pulping shaft (22), the water and the paint raw materials are mixed through the rotation of the forward pulping knife (23) and the reverse pulping knife (24), and meanwhile, the forward and reverse knife edges of the forward pulping knife (23) and the reverse pulping knife (24) are used for forming a plurality of groups of turbulent flows for the water in the pulping barrel (21) during the rotation of the pulping shaft (22), therefore, the mixing efficiency of the paint raw materials and the water is improved, then the water and the paint raw materials in the pulping barrel (21) can be mixed into pulp, when the mixing is carried out, the rotating part of the circulating motor (11) is utilized to drive the circulating pump head (12) to rotate, so that the circulating pump head (12) pumps the water and the paint raw materials in the pulping barrel (21) into the conveying guide pipe (13) through the T-shaped guide pipe (15), then the water and the paint raw materials are guided into the guide pipe (14) through the conveying guide pipe (13), and the paint raw materials and the water are guided into the pulping barrel (21) again through the three guide pipes (14), so that the mixing efficiency of the paint raw materials and the water is improved; after water and the paint raw materials in the pulping barrel (21) are grinded and mixed for a certain time, the rotation of the circulating motor (11), the conveying guide pipe (13) and the driving motor (41) is stopped, so that the butterfly valve (6) is opened to lead out the pulp through the front end of the T-shaped guide pipe (15).