Crushing and grinding device for paint coating processing

Abstract

The invention relates to a smashing and grinding device for paint coating processing, and belongs to the technical field of paint coating processing and grinding. The smashing and grinding device for paint coating processing comprises a mixing barrel and further comprises a cooling mechanism; a mixing mechanism; a dispersion mechanism; and a gas transmission mechanism. Through the arrangement of the cooling mechanism, the cooling mechanism can carry out heat dissipation operation on heat generated by grinding of the movable roller and the fixed roller, the situation that the grinding efficiency of the movable roller and the fixed roller is affected due to the fact that the temperature of pigment is too high and adheres to the outer surfaces of the movable roller and the fixed roller is avoided, and meanwhile abrasion caused by high temperature to the movable roller and the fixed roller is reduced; the service life of the movable roller and the fixed roller is prolonged, and in the heat dissipation process, the cooling mechanism can intermittently knock the movable roller and the fixed roller to enable the movable roller and the fixed roller to vibrate, so that powdery pigment adhered to the outer surfaces of the movable roller and the fixed roller due to the temperature effect can be separated from the movable roller and the fixed roller; and the movable roller and the fixed roller can better grind the pigment, and the grinding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of paint coating processing and grinding, and in particular relates to a crushing and grinding device for paint coating processing. Background Art

[0002] The production process of paints and coatings is a complex chemical process, involving multiple steps such as raw material selection, mixing, dispersion, grinding, color matching, paint mixing, filtering, and packaging; The following is the basic process of paint and coating production: Raw material preparation: Resin: Resin is the main film-forming substance of paints and coatings, commonly used are alkyd resin, epoxy resin, acrylic resin, etc.; Solvent: used to dissolve resin, commonly used are toluene, xylene, acetone, etc.; Pigment: Provide color for coatings, such as titanium dioxide, red iron oxide, etc.; Filler: Increase the thickness and strength of the coating, such as talcum powder, barium sulfate, etc.; Additives: Improve the performance of coatings, such as leveling agents, dispersants, defoamers, etc.; Production process: Premixing: Mix resin, solvent The pre-mixing tank is used for preliminary mixing of additives, pigments and fillers; grinding: the pre-mixture is ground through a grinder to refine the pigment particles and improve the uniformity and gloss of the paint; paint adjustment: according to product requirements, the viscosity and color of the paint may need to be adjusted, and some specific additives may need to be added; dispersion: the pigments and fillers are evenly dispersed in the resin through a high-speed disperser to ensure the stability of the paint; filtering: the dispersed paint is filtered through a filter to remove undispersed particles and other impurities; color matching: for paints that require specific colors, accurate color matching is performed in a color matching machine; packaging: after the produced paint has passed the inspection, it is packaged through filling, sealing, labeling and other processes.

[0003] At present, when grinding and processing pigments in paints and coatings, it is necessary to pour the ground pigments that meet the particle size into the paint raw materials, and then mix the paint raw materials and pigments by stirring to form paint coatings. However, in the process of grinding the pigments by the moving rollers and the fixed rollers, the moving rollers and the fixed rollers will heat up due to the extrusion and grinding of the pigments by the moving rollers and the fixed rollers, and then the pigments will heat up. The heating of the pigments will cause some components in the pigments to volatilize, resulting in the produced paint coatings failing to meet the standards, and also causing the pigments to adhere to the outer surfaces of the moving rollers and the fixed rollers, affecting the grinding quality and grinding efficiency of the moving rollers and the fixed rollers, and further affecting the quality of the produced paint coatings. Based on this, a crushing and grinding device for paint coating processing is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a reasonably designed crushing and grinding device for paint and coating processing in order to solve the above-mentioned problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: A crushing and grinding device for paint and coating processing, comprising a mixing barrel and a grinding box, and a grinding assembly installed in the grinding box, and also comprising: A cooling mechanism, the cooling mechanism is installed in the grinding assembly and is used to cool the grinding assembly. The cooling mechanism is arranged in two groups, one group is fixedly connected to the grinding box through an intake spiral pipe and an exhaust spiral pipe, and the other group is fixedly connected to the slide plate through an intake spiral pipe and an exhaust spiral pipe, and the two groups of cooling mechanisms are arranged in the grinding assembly, the intake end of the intake spiral pipe is fixedly connected with a dustproof net, the exhaust end of the intake spiral pipe is fixedly connected with a piston cylinder, the inner wall of the piston cylinder is sealingly and slidingly connected with a piston plate, one side of the piston plate is fixedly connected with a piston rod, the end of the piston rod is fixedly connected with a magnetic sheet, the piston rod is fixedly connected with a knock spring, the knock spring is fixedly connected to the piston cylinder, the end of the piston cylinder away from the intake spiral pipe is fixedly connected with the exhaust spiral pipe, and the exhaust end of the exhaust spiral pipe is fixedly connected with an air supply hose; A mixing mechanism, which is installed inside the mixing barrel and is used to mix paint raw materials and pigments; A dispersing mechanism, which is installed on the mixing mechanism and is used to disperse the paint raw materials and the pigment when the paint raw materials and the pigment are mixed; A gas delivery mechanism, which is fixedly connected to the mixing barrel and is used to deliver the gas in the cooling mechanism into the dispersing mechanism, so as to provide power for the dispersing mechanism to disperse the paint raw materials and pigments; The opening and closing mechanism is installed in the dispersion mechanism and is used to change the movement state of the dispersion mechanism.

[0006] As a further optimization scheme of the present invention, the dispersion mechanism is fixedly connected to a piston chamber in the mixing mechanism, and two piston plates are sealingly and slidably connected in the piston chamber, and the opposite sides of the two piston plates are fixedly connected with connecting rods, and the end of the connecting rod away from the piston plate is fixedly connected with a dispersion horizontal plate, and the side of the dispersion horizontal plate close to the connecting rod is fixedly connected with an inner dispersion vertical plate and an outer dispersion vertical plate, and the inner dispersion vertical plate and the outer dispersion vertical plate are respectively located on both sides of the piston chamber, and the dispersion horizontal plate, the inner dispersion vertical plate and the outer dispersion vertical plate are used to disperse paint raw materials and pigments, and the piston chamber is fixedly connected with a fixed A fixed block, both sides of which are fixedly connected with elastic ropes, the elastic ropes pass through a connecting rod and are fixedly connected to the middle position of the connecting rod, an air delivery groove is provided in the connecting rod, the air delivery groove is communicated with the inside of a piston bin, a connecting groove is provided in the dispersion horizontal plate, the connecting groove is communicated with the inside of the air delivery groove, an exhaust groove is provided in the outer dispersion vertical plate, the exhaust groove is communicated with the inside of the communicating groove, an exhaust hole is provided on the side wall of the outer dispersion vertical plate, the exhaust hole is communicated with the inside of the exhaust groove, a scraper rod is fixedly connected to the end of the dispersion horizontal plate, and the scraper rod is attached to the inner wall of the mixing barrel.

[0007] As a further optimization scheme of the present invention, the mixing mechanism includes a mixing motor installed in the middle position of the bottom end of the mixing barrel, the output end of the mixing motor is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a material mixing disk, the bottom of the material mixing disk is provided with a discharge hole, the outer surface of the rotating shaft is fixedly connected to a mixing frame, the piston chamber is fixedly connected in the mixing frame, and the dispersion cross plate is slidably connected to the inner wall of the mixing frame.

[0008] As a further optimization scheme of the present invention, the gas delivery mechanism includes a connecting pipe fixedly connected to the side wall of the mixing barrel, the gas delivery hose is fixedly connected to the connecting pipe, the connecting pipe passes through the side wall of the mixing barrel and extends to the interior of the mixing barrel, and one end of the connecting pipe located inside the mixing barrel is fixedly connected to a fixed sleeve, and the fixed sleeve is sealed and rotatably connected to the outer surface of the rotating shaft.

[0009] As a further optimization scheme of the present invention, the gas delivery mechanism also includes a delivery groove opened in the rotating shaft, the side wall of the rotating shaft is provided with an air inlet hole, the air inlet hole is connected to the interior of the delivery groove, the air inlet hole is located in the fixed sleeve and is connected to the interior of the fixed sleeve, the side wall of the rotating shaft is fixedly connected with a delivery pipe, the delivery pipe is connected to the interior of the delivery groove, the delivery pipe is fixedly connected to the middle position of the piston chamber, and the delivery pipe is connected to the interior of the piston chamber.

[0010] As a further optimization scheme of the present invention, the opening and closing mechanism includes a sealing groove that runs through the side wall of the piston plate, and two matching sealing blocks are sealingly and slidingly connected in the sealing groove. One end of the two sealing blocks is fixedly connected to a magnetic block, and the sealing groove runs through the gas transmission groove and is connected to the inside of the gas transmission groove.

[0011] As a further optimization scheme of the present invention, the opening and closing mechanism also includes a first magnetic plate and a second magnetic plate fixedly connected to the inner wall of the piston chamber, the first magnetic plate is fixedly connected to the middle position of the piston chamber, the second magnetic plate is fixedly connected to the upper and lower sides of the piston chamber, the first magnetic plate has the same magnetic properties as the magnetic block directly opposite, and the second magnetic plate has opposite magnetic properties to the magnetic block directly opposite.

[0012] As a further optimization scheme of the present invention, the grinding assembly includes two grooves opened on the side wall of the grinding box, and slides are slidably connected in the two grooves, and the side wall of one of the slides is fixedly connected to a first motor, and the output end of the first motor is fixedly connected to a first gear, and the adjacent sides of the two slides are rotatably connected to a movable roller, one end of the movable roller is fixedly connected to a first gear ring, and the first gear ring is meshed with the first gear, the side wall of the grinding box is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to a second gear, a fixed roller is rotatably connected in the grinding box, one end of the fixed roller is fixedly connected to a second gear ring, and the second gear ring is meshed with the second gear, and a pressure relief device is installed on the side wall of the grinding box, and the pressure relief end of the pressure relief device is fixedly connected to the slide.

[0013] As a further optimization scheme of the present invention, the two groups of cooling mechanisms are respectively arranged in the fixed roller and the movable roller, and a plurality of magnetic strips are fixedly connected in the movable roller and the fixed roller, and the magnetic strips have the same magnetic properties as the magnetic sheets directly opposite to each other.

[0014] As a further optimization scheme of the present invention, a feeding pipe is fixedly connected to the side wall of the mixing barrel, a discharge pipe is fixedly connected to the bottom of the mixing barrel, a feeding hopper is fixedly connected to the top of the grinding box, the grinding box and the mixing barrel are connected through a feed inlet, and the feed inlet is arranged in the middle of the top of the mixing barrel.

[0015] The beneficial effects of the present invention are: 1. The present invention provides a cooling mechanism so that the cooling mechanism can dissipate heat generated by grinding the moving roller and the fixed roller, thereby preventing the pigment from overheating and adhering to the outer surfaces of the moving roller and the fixed roller, thereby affecting the grinding efficiency of the moving roller and the fixed roller. At the same time, the wear of the moving roller and the fixed roller caused by high temperature is reduced, and the service life of the moving roller and the fixed roller is extended. In the process of heat dissipation, the cooling mechanism can also intermittently knock the moving roller and the fixed roller to make the moving roller and the fixed roller vibrate, so that the powdered pigment adhered to the outer surfaces of the moving roller and the fixed roller due to the effect of temperature can be separated from the moving roller and the fixed roller, so that the moving roller and the fixed roller can better grind the pigment, thereby improving the grinding efficiency.

[0016] 2. The present invention uses a mixing mechanism, a cooling mechanism and a dispersing mechanism in coordination. During the operation of the mixing mechanism and the cooling mechanism, the cooling mechanism will dissipate the heat generated by the grinding of the movable roller and the fixed roller, and the gas with heat will be transmitted to the dispersing mechanism, driving the dispersing mechanism to perform dispersing motion while the mixing mechanism performs circular motion, so that the dispersing mechanism can not only disperse the paint raw materials and pigment powder horizontally but also vertically, which helps to evenly disperse the pigment powder in the paint raw materials, so that the pigment powder and the paint raw materials are mixed more evenly and the mixing effect is higher, thereby shortening the mixing time, improving the processing efficiency and reducing the energy consumption.

[0017] 3. The present invention uses a cooling mechanism, an air supply mechanism and a dispersing mechanism in coordination. During the intermittent exhaust process of the cooling mechanism, the gas has a certain temperature because the gas is used to cool the movable roller and the fixed roller. The gas with temperature will be conducted to the dispersing mechanism under the action of the air supply mechanism and injected into the paint raw materials and pigment powder by the dispersing mechanism. The gas with temperature can increase the turbulence of the paint raw materials and pigment powder when injected into the paint raw materials and pigment powder, which helps to disperse the raw materials more quickly and evenly in the paint raw materials. At the same time, the injection of the gas with temperature can reduce the viscosity of the mixture, making it easier to disperse the pigment powder in the paint raw materials, thereby improving production efficiency. In addition, when the gas is injected into the paint raw materials, bubbles will be formed. The presence of bubbles can prevent the pigment powder from settling, keep the raw materials in a suspended state, and help to maintain the uniformity of the mixture for a long time, thereby further ensuring the quality of the paint coating produced by the processing.

[0018] 4. The present invention provides an opening and closing mechanism so that when the gas delivery mechanism inputs the heated gas into the dispersion mechanism, the opening and closing mechanism closes the gas delivery slot in the dispersion mechanism, so that the dispersion mechanism can move, thereby expanding the dispersion range of the paint raw materials and pigment powders by the dispersion mechanism, and allowing the dispersion mechanism to disperse the paint raw materials and pigment powders longitudinally. When the dispersion mechanism reaches the maximum movement state, the opening and closing mechanism will not be able to close the gas delivery slot, so that the dispersion mechanism injects heated gas into the paint raw materials and pigment powders, and the dispersion mechanism automatically resets, so that the dispersion mechanism can disperse the paint raw materials and pigment powders, and the dispersion mechanism can inject heated gas into the paint raw materials and pigment powders, thereby promoting the full mixing of the paint raw materials and pigment powders. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention when viewed from above; Figure 3 It is a schematic diagram of the structure of the present invention cut away from the middle of the front side; Figure 4 The present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the structure of the middle section of the side of the present invention; Figure 6 The present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 The present invention Figure 5 The enlarged structural diagram at C in the middle; Figure 8 It is a schematic diagram of the partially cutaway structure of the front side of the present invention; Fig. 9 The present invention Figure 8 The enlarged structural diagram at D in the middle; Fig.10 It is a schematic diagram of the structure of the middle section of the top of the grinding box of the present invention; Fig.11 The present invention Fig.10 The enlarged structural diagram at E in the middle; Fig.12 The present invention Fig.10 The enlarged structural diagram at F in the middle; Fig.13 It is a schematic diagram of a three-dimensional partially cutaway structure of the present invention; Fig.14 It is a three-dimensional partially cutaway structural schematic diagram of the cooling mechanism of the present invention; Fig.15 It is a three-dimensional partially cutaway structural schematic diagram of the mixing mechanism and the dispersing mechanism of the present invention; Fig.16 The present invention Fig.15 The enlarged structural diagram at G in the middle; Fig.17 It is a three-dimensional partially cutaway structural schematic diagram of the dispersion mechanism of the present invention; Fig.18 It is a schematic diagram of a partial three-dimensional structure of the opening and closing mechanism of the present invention.

[0020] In the figure: 1, mixing barrel; 2, feeding pipe; 3, discharge pipe; 4, grinding box; 5, feeding hopper; 6, feeding port; 7, pressure relief device; 8, groove; 9, slide plate; 10, first motor; 11, first gear; 12, first gear ring; 13, moving roller; 14, second motor; 15, second gear; 16, second gear ring; 17, fixed roller; 18, cooling mechanism; 1801, air intake solenoid; 1802, dustproof net; 1803, piston cylinder; 1804, piston plate; 1805, piston rod; 1806, knock spring; 1807, magnetic strip; 1808, exhaust solenoid; 1809, air hose; 1810, magnetic sheet; 19, mixing mechanism; 1901, mixing motor; 1902, rotating shaft; 1903, material mixing plate; 19 04, discharge hole; 1905, mixing frame; 20, dispersion mechanism; 2001, piston bin; 2002, piston plate; 2003, connecting rod; 2004, dispersion horizontal plate; 2005, inner dispersion vertical plate; 2006, outer dispersion vertical plate; 2007, fixing block; 2008, elastic rope; 2009, air delivery trough; 2010, connecting trough; 2011, exhaust trough; 2012, exhaust hole; 2013, scraper rod; 21, air delivery mechanism; 2101, connecting pipe; 2102, fixing sleeve; 2103, conveying trough; 2104, air inlet hole; 2105, conveying pipe; 22, opening and closing mechanism; 2201, sealing block; 2202, magnetic block; 2203, first magnetic plate; 2204, sealing slide; 2205, second magnetic plate. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example: Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 8 , Fig.10 , Leg 11, Fig.12 , Fig.13 and Fig.15As shown, a pulverizing and grinding device for paint and coating processing includes a mixing barrel 1 and a grinding box 4, and a grinding assembly installed in the grinding box 4. The grinding box 4 is fixedly connected to the top of the mixing barrel 1. The grinding assembly includes two grooves 8 opened on the side wall of the grinding box 4. Slide plates 9 are slidably connected in the two grooves 8. The arrangement of the slide plates 9 facilitates the adjustment of the position of the grinding assembly. A first motor 10 is fixedly connected to the side wall of one of the slide plates 9. A first gear 11 is fixedly connected to the output end of the first motor 10. A movable roller 13 is rotatably connected to the adjacent sides of the two slide plates 9. A first gear ring 12 is fixedly connected to one end of the movable roller 13. The first gear ring 12 is connected to the first gear 11. 1 is meshed with each other, a second motor 14 is fixedly connected to the side wall of the grinding box 4, an output end of the second motor 14 is fixedly connected to a second gear 15, the first gear 11 and the second gear 15 are both located in the grinding box 4, a fixed roller 17 is rotatably connected in the grinding box 4, the rotating directions of the movable roller 13 and the fixed roller 17 are opposite, and there is a certain speed difference between the two, which is convenient for grinding the pigment, a second gear ring 16 is fixedly connected to one end of the fixed roller 17, and the second gear ring 16 is meshed with the second gear 15, a pressure relief device 7 is installed on the side wall of the grinding box 4, a pressure relief end of the pressure relief device 7 is fixedly connected to the slide plate 9, the pressure relief device 7 is composed of an electric telescopic rod and a pressure relief plate, and the pressure relief plate is the pressure relief device The pressure relief end of the mixing barrel 7 is fixedly connected to the pressure relief plate 9, which is convenient for pushing and pulling the moving roller 13 to move, so as to achieve the purpose of changing the distance between the moving roller 13 and the fixed roller 17. The side wall of the mixing barrel 1 is fixedly connected with a feeding pipe 2, and the feeding pipe 2 is used to add paint raw materials into the mixing barrel 1. The bottom of the mixing barrel 1 is fixedly connected with a discharge pipe 3, and a valve is installed in the discharge pipe 3. When the paint raw materials and pigments in the mixing barrel 1 are evenly mixed to form a paint coating, the valve in the discharge pipe 3 is opened to discharge the paint coating. The top of the grinding box 4 is fixedly connected with a feeding hopper 5, and the feeding hopper 5 is used to add the pigment to be ground into the grinding box 4. The grinding box 4 and the mixing barrel 1 are connected. The mixing device further comprises: a mixing mechanism 19, which is installed inside the mixing barrel 1 and is used to mix paint raw materials and pigments. The mixing mechanism 19 comprises a mixing motor 1901 installed at the middle of the bottom end of the mixing barrel 1. The output end of the mixing motor 1901 is fixedly connected with a rotating shaft 1902. The rotating shaft 1902 passes through the mixing barrel 1 and is sealed and rotatably connected with the mixing barrel 1. A material mixing disk 1903 is fixedly connected with the top of the rotating shaft 1902. A material discharge hole 1904 is provided at the bottom of the material mixing disk 1903. A mixing frame 1905 is fixedly connected with the outer surface of the rotating shaft 1902.

[0023] When in use, first adjust the distance between the movable roller 13 and the fixed roller 17 according to the pigment grinding requirements, then start the pressure relief device 7 to extend or shorten the pressure relief device 7, and then push the slide plate 9 to slide in the groove 8, so that the movable roller 13 moves, and when the distance between the movable roller 13 and the fixed roller 17 meets the pigment grinding requirements, the pressure relief device 7 can be closed, and paint raw materials are added to the mixing barrel 1 through the feeding pipe 2, and then the first motor 10 and the second motor 14 are started to rotate the movable roller 13 and the fixed roller 17, and then the feeding hopper can be used to feed the paint raw materials. The pigment to be ground is added into the grinding box 4, and during the grinding process, the mixing motor 1901 is started to rotate the rotating shaft 1902, thereby driving the mixing plate 1903 and the mixing frame 1905 to rotate, and the pigment powder ground by the movable roller 13 and the fixed roller 17 will fall into the mixing plate 1903 through the feeding port 6. The rotation of the mixing plate 1903 will evenly release the pigment powder into the paint raw material, and cooperate with the rotation of the mixing frame 1905 to achieve the stirring and mixing of the paint raw material and the pigment powder.

[0024] like Figure 2 , Figure 3 , Figure 4 , Fig.10 , Fig.11 , Fig.12 and Fig.14As shown, the pulverizing and grinding device also includes: a cooling mechanism 18, which is installed in the grinding assembly and is used to cool the grinding assembly. The cooling mechanism 18 is arranged in two groups, one group is fixedly connected to the grinding box 4 through an air intake spiral tube 1801 and an exhaust spiral tube 1808, and the other group is fixedly connected to the slide plate 9 through an air intake spiral tube 1801 and an exhaust spiral tube 1808, and the two groups of cooling mechanisms 18 are respectively arranged in the fixed roller 17 and the movable roller 13, the air intake end of the air intake spiral tube 1801 is fixedly connected with a dustproof net 1802, and the exhaust end of the air intake spiral tube 1801 is fixedly connected with a piston cylinder 1803, a one-way valve is installed in the air intake spiral tube 1801, so that the piston cylinder 1803 can only draw external air through the air intake spiral tube 1801, and the inner wall of the piston cylinder 1803 is sealingly and slidably connected with a piston plate 1804, and the piston plate 18 A piston rod 1805 is fixedly connected to one side of 04, and a magnetic sheet 1810 is fixedly connected to the end of the piston rod 1805. A knock spring 1806 is fixedly connected to the piston rod 1805, and the knock spring 1806 is fixedly connected to the piston cylinder 1803. An exhaust screw 1808 is fixedly connected to the end of the piston cylinder 1803 away from the air intake screw 1801. A one-way valve is installed in the exhaust screw 1808 so that the gas in the piston cylinder 1803 can only be discharged through the exhaust screw 1808. The spiral air intake screw 1801 and the exhaust screw 1808 can better cool the movable roller 13 and the fixed roller 17. The exhaust end of the exhaust screw 1808 is fixedly connected to an air supply hose 1809. A plurality of magnetic strips 1807 are fixedly connected to the movable roller 13 and the fixed roller 17, and the magnetic properties of the magnetic strips 1807 and the magnetic sheet 1810 are the same when they are directly opposite.

[0025] During use, due to the rotation of the movable roller 13 and the fixed roller 17, the magnetic strip 1807 will be intermittently aligned with the magnetic sheet 1810. When the magnetic strip 1807 is aligned with the magnetic sheet 1810, the piston rod 1805 will push the piston plate 1804 to slide into the piston cylinder 1803 under the action of the magnetic repulsion between the magnetic sheet 1810 and the magnetic strip 1807, and the gas in the piston cylinder 1803 that absorbs the temperature generated by the grinding of the movable roller 13 and the fixed roller 17 will be squeezed and discharged into the exhaust solenoid 1808. When the magnetic strip 1807 is separated from the position of the magnetic sheet 1810, the piston rod 1805 will hit the inner surface of the movable roller 13 and the fixed roller 17 under the action of the knock spring 1806, and the piston cylinder 1803 will draw air filtered by the dustproof net 1802 into the piston cylinder through the intake solenoid 1801. In 1803, the outside air absorbs the temperature generated by the moving roller 13 and the fixed roller 17 during grinding, thereby achieving the heat dissipation operation of the heat generated by the grinding of the moving roller 13 and the fixed roller 17, avoiding excessive temperature rise of the pigment and adhering to the outer surface of the moving roller 13 and the fixed roller 17, affecting the grinding efficiency of the moving roller 13 and the fixed roller 17, and reducing the wear of the moving roller 13 and the fixed roller 17 caused by high temperature, extending the service life of the moving roller 13 and the fixed roller 17, and in the process of heat dissipation, the moving roller 13 and the fixed roller 17 can be intermittently knocked to make the moving roller 13 and the fixed roller 17 vibrate, so that the powdered pigment adhered to the outer surface of the moving roller 13 and the fixed roller 17 due to the effect of temperature can be separated from the moving roller 13 and the fixed roller 17, so that the moving roller 13 and the fixed roller 17 can better grind the pigment, thereby improving the grinding efficiency.

[0026] like Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.13 , Fig.15 , Fig.16 , Fig.17 and Fig.18As shown, the crushing and grinding device also includes: a dispersing mechanism 20, which is installed on the mixing mechanism 19 and is used to disperse the paint raw materials and pigments when mixing the paint raw materials and pigments. The dispersing mechanism 20 is arranged in four groups, and the dispersing mechanism 20 includes a piston chamber 2001 fixedly connected to the mixing mechanism 19, and the piston chamber 2001 is fixedly connected to the mixing frame 1905. Two piston plates 2002 are sealed and slidably connected in the piston chamber 2001. The opposite sides of the two piston plates 2002 are fixedly connected to a connecting rod 2003, and one end of the connecting rod 2003 away from the piston plate 2002 is fixedly connected There is a dispersing horizontal plate 2004, which is slidably connected to the inner wall of the mixing frame 1905. The side of the dispersing horizontal plate 2004 close to the connecting rod 2003 is fixedly connected with an inner dispersing vertical plate 2005 and an outer dispersing vertical plate 2006. The inner dispersing vertical plate 2005 and the outer dispersing vertical plate 2006 are respectively located on both sides of the piston chamber 2001. The dispersing horizontal plate 2004, the inner dispersing vertical plate 2005 and the outer dispersing vertical plate 2006 are used to disperse paint raw materials and pigments. The dispersing mechanism 20 also includes a fixed block 2007 fixedly connected to the piston chamber 2001, and both sides of the fixed block 2007 are fixedly connected There is an elastic rope 2008, which passes through the connecting rod 2003 and is fixedly connected to the middle position of the connecting rod 2003. A gas delivery groove 2009 is provided in the connecting rod 2003. An opening and closing mechanism 22 is installed in the piston chamber 2001. The opening and closing mechanism 22 corresponds to the position of the gas delivery groove 2009, and the opening and closing mechanism 22 is used to open or close the gas delivery groove 2009. A one-way valve is installed in the gas delivery groove 2009 so that the gas in the piston chamber 2001 can only be discharged through the gas delivery groove 2009. The gas delivery groove 2009 is connected to the inside of the piston chamber 2001. A connecting valve is provided in the dispersion cross plate 2004. The outer dispersion vertical plate 2006 is provided with an exhaust groove 2011, and the exhaust groove 2011 is connected with the interior of the connecting groove 2010. The side wall of the outer dispersion vertical plate 2006 is provided with an exhaust hole 2012, and the exhaust hole 2012 is connected with the interior of the exhaust groove 2011. A one-way valve is installed in the exhaust hole 2012, so that the gas with temperature can only flow into the paint raw materials and pigment powder through the exhaust hole 2012. The end of the dispersion horizontal plate 2004 is fixedly connected with a scraper rod 2013, and the scraper rod 2013 is attached to the inner wall of the mixing barrel 1;The crushing and grinding device also includes: an air delivery mechanism 21, which is fixedly connected to the mixing barrel 1, and is used to transfer the gas in the cooling mechanism 18 into the dispersion mechanism 20, so as to provide power for the dispersion mechanism 20 to disperse the paint raw materials and pigments. The air delivery mechanism 21 includes a connecting pipe 2101 fixedly connected to the side wall of the mixing barrel 1, and the air delivery hose 1809 is fixedly connected to the connecting pipe 2101. The connecting pipe 2101 passes through the side wall of the mixing barrel 1 and extends to the inside of the mixing barrel 1. The end of the connecting pipe 2101 located inside the mixing barrel 1 is fixedly connected with a fixed sleeve 2102, and the fixed sleeve 2102 is sealed and rotatably connected to the outer surface of the rotating shaft 1902. The air delivery mechanism 21 also includes a conveying groove 2103 opened in the rotating shaft 1902, and the side wall of the rotating shaft 1902 is provided with an air inlet 2104. The air inlet 2104 is connected to the inside of the delivery groove 2103, the air inlet 2104 is located in the fixed sleeve 2102 and is connected to the inside of the fixed sleeve 2102, the side wall of the rotating shaft 1902 is fixedly connected with a delivery pipe 2105, the delivery pipe 2105 is connected to the inside of the delivery groove 2103, the delivery pipe 2105 is fixedly connected to the middle position of the piston bin 2001, the delivery pipe 2105 is connected to the inside of the piston bin 2001, and a one-way valve is installed in the delivery pipe 2105, so that the gas can only flow from the delivery pipe 2105 to the piston bin 2001. It should be noted that the sum of the internal volumes of the piston cylinders 1803 in the two groups of cooling mechanisms 18 is greater than the sum of the internal volumes of the piston bins 2001 in the four groups of dispersion mechanisms 20, so that when the piston cylinder 1803 is exhausted, the piston sheet 2002 can slide to the end of the piston bin 2001. ;

[0027] When in use, the mixing frame 1905 will drive the dispersion horizontal plate 2004, the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 to make circular motions during the circular motion, so that the dispersion horizontal plate 2004, the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 stir and mix the paint raw materials and pigment powders. In this process, the hot gas discharged through the exhaust spiral tube 1808 will be discharged into the connecting pipe 2101 through the gas hose 1809, and then enter the fixed sleeve 2102, and then enter the delivery groove 2103 through the air inlet 2104, and finally enter the piston chamber 2001 through the delivery pipe 2105. When the piston cylinder 1803 is exhausted, the opening and closing mechanism 22 closes the gas delivery groove 2009, and the piston plate 2002 slides toward the end in the piston chamber 2001 under the action of air pressure, stretching the elastic rope 2008, and then drives the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 to move upward and downward through the dispersion horizontal plate 2004 until the piston cylinder 1803 stops exhausting. Since the piston cylinder 1803 reciprocates to exhaust air, the air pressure in the piston chamber 2001 will gradually increase. As the air pressure in the piston chamber 2001 gradually increases until the piston plate 2002 reaches the specified position, the opening and closing mechanism 22 closes the gas delivery groove 2009. 09 is opened, the piston piece 2002 will slide inward under the action of the elastic rope 2008, and the warm gas inside the piston chamber 2001 will enter the connecting groove 2010 through the gas delivery groove 2009, and then enter the exhaust groove 2011, and finally be injected into the paint raw material and pigment powder through the exhaust hole 2012, so that the dispersing horizontal plate 2004, the inner dispersing vertical plate 2005 and the outer dispersing vertical plate 2006 can not only disperse the paint raw material and pigment powder horizontally but also vertically, which is helpful for the pigment powder to be evenly dispersed in the paint raw material, so that the pigment powder and the paint raw material are mixed more evenly and the mixing effect is better. High, shortening the mixing time, improving processing efficiency, reducing energy consumption, and the temperature of the gas when injected into the paint raw materials and pigment powder can increase the turbulence of the paint raw materials and pigment powder, which helps the raw materials to mix more quickly and evenly. At the same time, the temperature of the gas injection can reduce the viscosity of the mixture, making it easier to disperse the pigment powder in the paint raw materials, improving production efficiency. In addition, when the gas is injected into the paint raw materials, bubbles will be formed. The presence of bubbles can prevent the pigment powder from settling and keep the raw materials in a suspended state, which is conducive to maintaining the uniformity of the mixture for a long time, thereby further ensuring the quality of the paint coating produced by the processing; In addition, during the circular motion and dispersing motion of the dispersing horizontal plate 2004, the inner dispersing vertical plate 2005 and the outer dispersing vertical plate 2006, the scraper rod 2013 will also make circular motion and dispersing motion, and because the scraper rod 2013 is attached to the inner surface of the mixing barrel 1, the paint raw materials on the inner wall of the mixing barrel 1 can be scraped off the inner wall of the mixing barrel 1, so that the paint raw materials near the inner wall of the mixing barrel 1 can also be fully mixed with the pigment powder, further improving the uniformity and efficiency of the mixing of the paint raw materials and pigment powder.

[0028] like Figure 7 , Fig. 9 , Fig.16 and Fig.18 As shown, the crushing and grinding device also includes: an opening and closing mechanism 22, which is installed in the dispersion mechanism 20 and is used to change the movement state of the dispersion mechanism 20. The opening and closing mechanism 22 includes a sealing groove 2204 that runs through the side wall of the piston plate 2002. Two matching sealing blocks 2201 are sealed and slidably connected in the sealing groove 2204. One end of the two sealing blocks 2201 is fixedly connected to a magnetic block 2202. The sealing groove 2204 runs through the gas delivery groove 2009 and is connected to the inside of the gas delivery groove 2009. The opening and closing mechanism 22 also includes a first magnetic plate 2203 and a second magnetic plate 2205 fixedly connected to the inner wall of the piston chamber 2001. The first magnetic plate 2203 is fixedly connected to the middle position of the piston chamber 2001, and the second magnetic plate 2205 is fixedly connected to the upper and lower sides of the piston chamber 2001. The second magnetic plate 2205 has opposite magnetic properties to the magnetic block 2202.

[0029] When in use, in the initial stage, the magnetic block 2202 is directly opposite to the first magnetic plate 2203, so that the two sealing blocks 2201 seal the gas delivery groove 2009. When the high-temperature gas enters the piston chamber 2001 through the delivery pipe 2105, the piston plate 2002 will slide toward the end of the piston chamber 2001 due to the sealing of the gas delivery groove 2009. When the piston plate 2002 slides to the position where the piston chamber 2001 has the second magnetic plate 2205, the second magnetic plate 2205 will directly face the magnetic block 2202, so that the second magnetic plate 2205 attracts the magnetic block 2202 to slide outward, so that the two sealing blocks 2201 cannot seal the gas delivery groove 2009, so that the exhaust hole 2012 starts to discharge the heated gas, and during the process of discharging the gas inside the piston chamber 2001, the piston plate 2002 slides inward until the gas in the piston chamber 2001 is completely discharged. When the gas is completely discharged, the magnetic block 2202 will reach the position of the first magnetic plate 2203, and the sealing block 2201 will re-seal the gas delivery groove 2009 under the repulsive force of the first magnetic plate 2203 and the magnetic block 2202, so that the dispersing mechanism 20 can disperse the paint raw materials and pigment powder, and at the same time, the dispersing mechanism 20 can inject heated gas into the paint raw materials and pigment powder, thereby promoting the full mixing of the paint raw materials and pigment powder.

[0030] The specific working principle of the present invention is as follows: when in use, first adjust the distance between the movable roller 13 and the fixed roller 17 according to the pigment grinding requirements, then start the pressure relief device 7 to extend or shorten the pressure relief device 7, and then push the slide plate 9 to slide in the groove 8, so that the movable roller 13 moves, and when the distance between the movable roller 13 and the fixed roller 17 meets the pigment grinding requirements, the pressure relief device 7 can be closed, and the paint raw materials are added to the mixing barrel 1 through the feeding pipe 2, and then the first motor 10 and the second motor 14 are started to rotate the movable roller 13 and the fixed roller 17. The pigment to be ground can be added into the grinding box 4 through the feeding hopper 5, and during the grinding process, the mixing motor 1901 is started to rotate the rotating shaft 1902, thereby driving the mixing plate 1903 and the mixing frame 1905 to rotate, and the pigment powder ground by the moving roller 13 and the fixed roller 17 will fall into the mixing plate 1903 through the feeding port 6. The rotation of the mixing plate 1903 will evenly release the pigment powder into the paint raw material, and cooperate with the rotation of the mixing frame 1905 to achieve the stirring and mixing of the paint raw material and the pigment powder; At the same time, due to the rotation of the movable roller 13 and the fixed roller 17, the magnetic strip 1807 will be intermittently aligned with the magnetic sheet 1810. When the magnetic strip 1807 is aligned with the magnetic sheet 1810, the piston rod 1805 will push the piston plate 1804 to slide into the piston cylinder 1803 under the action of the magnetic repulsion between the magnetic sheet 1810 and the magnetic strip 1807, and squeeze the gas in the piston cylinder 1803 that absorbs the temperature generated by the grinding of the movable roller 13 and the fixed roller 17 and discharge it into the exhaust solenoid 1808. When the magnetic strip 1807 is separated from the position of the magnetic sheet 1810, the piston rod 1805 will hit the inner surface of the movable roller 13 and the fixed roller 17 under the action of the knock spring 1806, and the piston cylinder 1803 will draw air filtered by the dustproof net 1802 into the piston cylinder through the intake solenoid 1801. In 1803, the outside air absorbs the temperature generated by the moving roller 13 and the fixed roller 17 during grinding, thereby achieving heat dissipation of the heat generated by the grinding of the moving roller 13 and the fixed roller 17, preventing the pigment from being overheated and adhering to the outer surfaces of the moving roller 13 and the fixed roller 17, thereby affecting the grinding efficiency of the moving roller 13 and the fixed roller 17, and reducing the wear of the moving roller 13 and the fixed roller 17 caused by high temperature, thereby extending the service life of the moving roller 13 and the fixed roller 17, and in the process of heat dissipation, the moving roller 13 and the fixed roller 17 can be intermittently knocked to make the moving roller 13 and the fixed roller 17 vibrate, so that the powdered pigment adhering to the outer surfaces of the moving roller 13 and the fixed roller 17 due to the temperature can be separated from the moving roller 13 and the fixed roller 17, so that the moving roller 13 and the fixed roller 17 can better grind the pigment, thereby improving the grinding efficiency; And in this process, the mixing frame 1905 will drive the dispersion horizontal plate 2004, the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 to make a circular motion during the circular motion, so that the dispersion horizontal plate 2004, the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 stir and mix the paint raw materials and pigment powder. At this time, since the magnetic block 2202 is facing the first magnetic plate 2203, the two sealing blocks 2201 seal the gas delivery groove 2009. The hot gas discharged through the exhaust spiral tube 1808 will be discharged into the connecting pipe 2101 through the gas delivery hose 1809, and then enter the fixed sleeve 2102, and then enter the delivery groove 2103 through the air inlet 2104, and finally enter the piston chamber 2001 through the delivery pipe 2105. In the process of exhausting the piston cylinder 1803, and the gas delivery groove 20 09 is sealed, at this time, the piston piece 2002 will slide toward the end in the piston chamber 2001, stretching the elastic rope 2008, and then driving the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 to move upward and downward through the dispersion horizontal plate 2004 until the piston cylinder 1803 stops exhausting, and because the piston cylinder 1803 reciprocates to pump air and exhaust, the air pressure in the piston chamber 2001 will gradually increase, and as the air pressure in the piston chamber 2001 gradually increases until the piston piece 2002 reaches the position of the second magnetic plate 2205, at this time, because the piston piece 2002 is located at the position of the piston chamber 2001 with the second magnetic plate 2205, the second magnetic plate 2205 will be opposite to the magnetic block 2202, so that the second magnetic plate 2205 attracts the magnetic block 2202 to slide outward, so that the two sealing blocks 2201 cannot seal the gas transmission groove 2009; At this time, due to the opening of the gas delivery groove 2009, the piston plate 2002 will slide inward under the action of the elastic rope 2008. At this time, the hot gas inside the piston chamber 2001 will enter the connecting groove 2010 through the gas delivery groove 2009, and then enter the exhaust groove 2011, and finally be injected into the paint raw materials and pigment powder through the exhaust hole 2012 until the magnetic block 2202 reaches the position of the first magnetic plate 2203. When the magnetic block 2202 is about to reach the position of the first magnetic plate 2203, the sealing block 2201 will re-seal the gas delivery groove 2009 under the repulsive force of the first magnetic plate 2203 and the magnetic block 2202, so as to facilitate the next dispersion action of the horizontal dispersion plate 2004, the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006, so that the horizontal dispersion plate 2004, the inner dispersion vertical plate 2005 and the outer dispersion vertical plate 2006 are not only The paint raw materials and pigment powder can be dispersed horizontally and vertically at the same time, which helps to evenly disperse the pigment powder in the paint raw materials, so that the pigment powder and the paint raw materials are mixed more evenly and the mixing effect is higher, shortening the mixing time, improving the processing efficiency, and reducing energy consumption. When the gas with temperature is injected into the paint raw materials and the pigment powder, it can increase the turbulence of the paint raw materials and the pigment powder, which helps to mix the raw materials more quickly and evenly. At the same time, the injection of the gas with temperature can reduce the viscosity of the mixture, making the pigment powder easier to disperse in the paint raw materials, and improving the production efficiency. In addition, when the gas is injected into the paint raw materials, bubbles will be formed. The presence of bubbles can prevent the pigment powder from settling, keep the raw materials in a suspended state, and help to keep the uniformity of the mixture for a long time, thereby further ensuring the quality of the paint coating produced by the processing; In addition, during the circular motion and dispersing motion of the dispersing horizontal plate 2004, the inner dispersing vertical plate 2005 and the outer dispersing vertical plate 2006, the scraper rod 213 will also make a circular motion and a dispersing motion. Since the scraper rod 213 is attached to the inner surface of the mixing barrel 1, the paint raw materials on the inner wall of the mixing barrel 1 can be scraped off the inner wall of the mixing barrel 1, so that the paint raw materials near the inner wall of the mixing barrel 1 can also be fully mixed with the pigment powder, further improving the uniformity and efficiency of the mixing of the paint raw materials and the pigment powder. After the paint coating is obtained by stirring and mixing for a specified time, the first motor 10, the second motor 14 and the mixing motor 1901 can be turned off, and the valve in the discharge pipe 3 can be opened to discharge the paint coating obtained by processing.

[0031] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A crushing and grinding device for paint and coating processing, comprising a mixing barrel (1) and a grinding box (4), and a grinding assembly installed in the grinding box (4), characterized in that: Also includes: A cooling mechanism (18), the cooling mechanism (18) being installed in the grinding assembly and used for cooling the grinding assembly, the cooling mechanism (18) being arranged in two groups, one group being fixedly connected to the grinding box (4) via an air intake screw pipe (1801) and an air exhaust screw pipe (1808), and the other group being fixedly connected to the slide plate (9) via an air intake screw pipe (1801) and an air exhaust screw pipe (1808), and both groups of cooling mechanisms (18) being arranged in the grinding assembly, the air intake end of the air intake screw pipe (1801) being fixedly connected to a dustproof net (1802), and the air exhaust end of the air intake screw pipe (1801) being fixedly connected to a piston cylinder (1803), The inner wall of the piston cylinder (1803) is sealingly and slidably connected to a piston plate (1804), one side of the piston plate (1804) is fixedly connected to a piston rod (1805), the end of the piston rod (1805) is fixedly connected to a magnetic sheet (1810), the piston rod (1805) is fixedly connected to a knock spring (1806), the knock spring (1806) is fixedly connected to the piston cylinder (1803), the end of the piston cylinder (1803) away from the intake solenoid (1801) is fixedly connected to an exhaust solenoid (1808), and the exhaust end of the exhaust solenoid (1808) is fixedly connected to a gas delivery hose (1809); A mixing mechanism (19), the mixing mechanism (19) being installed inside the mixing barrel (1) and used for mixing paint raw materials and pigments; A dispersing mechanism (20), the dispersing mechanism (20) being mounted on the mixing mechanism (19) and used for dispersing the paint raw material and the pigment when the paint raw material and the pigment are mixed; A gas delivery mechanism (21), the gas delivery mechanism (21) being fixedly connected to the mixing barrel (1), the gas delivery mechanism (21) being used to deliver the gas in the cooling mechanism (18) into the dispersion mechanism (20), so as to provide power for the dispersion mechanism (20) to disperse the paint raw materials and pigments; An opening and closing mechanism (22) is installed in the dispersion mechanism (20) and is used to change the motion state of the dispersion mechanism (20).

2. A pulverizing and grinding device for paint and coating processing according to claim 1, characterized in that: The dispersion mechanism (20) is fixedly connected to a piston chamber (2001) in the mixing mechanism (19); two piston plates (2002) are sealingly and slidably connected in the piston chamber (2001); the two piston plates (2002) are fixedly connected to connecting rods (2003) on opposite sides thereof; one end of the connecting rod (2003) away from the piston plates (2002) is fixedly connected to a dispersion transverse plate (2004); and the dispersion transverse plate (2004) is close to the connecting rod (2003). ) is fixedly connected to one side of the piston chamber (2001) with an inner dispersing vertical plate (2005) and an outer dispersing vertical plate (2006), the inner dispersing vertical plate (2005) and the outer dispersing vertical plate (2006) are respectively located on both sides of the piston chamber (2001), the dispersing horizontal plate (2004), the inner dispersing vertical plate (2005) and the outer dispersing vertical plate (2006) are used to disperse paint raw materials and pigments, and a fixing block (2007) is fixedly connected inside the piston chamber (2001), and the fixing block (2007) is fixedly connected to one side of the piston chamber (2001), and the fixing block (2007) is fixedly connected to one side of the piston chamber (2001) with two fixing blocks (2007) on the other side. The two sides are fixedly connected with an elastic rope (2008), the elastic rope (2008) passes through the connecting rod (2003) and is fixedly connected to the middle position of the connecting rod (2003), the connecting rod (2003) is provided with a gas delivery groove (2009), the gas delivery groove (2009) is connected with the inside of the piston chamber (2001), the dispersion cross plate (2004) is provided with a connecting groove (210), the connecting groove (210) is connected with the inside of the gas delivery groove (2009), and the connecting groove (210) is connected with the inside of the gas delivery groove (2009). The outer dispersion vertical plate (2006) is provided with an exhaust groove (2011), the exhaust groove (2011) is connected to the inside of the connecting groove (2010), the side wall of the outer dispersion vertical plate (2006) is provided with an exhaust hole (2012), the exhaust hole (2012) is connected to the inside of the exhaust groove (2011), and the end of the dispersion horizontal plate (2004) is fixedly connected to a scraper rod (2013), and the scraper rod (2013) is attached to the inner wall of the mixing barrel (1).

3. A pulverizing and grinding device for paint and coating processing according to claim 2, characterized in that: The mixing mechanism (19) comprises a mixing motor (1901) installed at the middle of the bottom end of the mixing barrel (1); the output end of the mixing motor (1901) is fixedly connected to a rotating shaft (1902); the top of the rotating shaft (1902) is fixedly connected to a material mixing plate (1903); a material discharge hole (1904) is provided at the bottom of the material mixing plate (1903); the outer surface of the rotating shaft (1902) is fixedly connected to a mixing frame (1905); the piston chamber (2001) is fixedly connected inside the mixing frame (1905); and the dispersion cross plate (2004) is slidably connected to the inner wall of the mixing frame (1905).

4. A pulverizing and grinding device for paint and coating processing according to claim 3, characterized in that: The gas delivery mechanism (21) comprises a connecting pipe (2101) fixedly connected to the side wall of the mixing barrel (1); the gas delivery hose (1809) is fixedly connected to the connecting pipe (2101); the connecting pipe (2101) passes through the side wall of the mixing barrel (1) and extends into the interior of the mixing barrel (1); one end of the connecting pipe (2101) located inside the mixing barrel (1) is fixedly connected to a fixing sleeve (2102); the fixing sleeve (2102) is sealingly rotatably connected to the outer surface of the rotating shaft (1902).

5. A pulverizing and grinding device for paint and coating processing according to claim 4, characterized in that: The gas delivery mechanism (21) further comprises a delivery groove (2103) provided in the rotating shaft (1902); an air inlet hole (2104) is provided on the side wall of the rotating shaft (1902); the air inlet hole (2104) is communicated with the interior of the delivery groove (2103); the air inlet hole (2104) is located in the fixed sleeve (2102) and is communicated with the interior of the fixed sleeve (2102); a delivery pipe (2105) is fixedly connected to the side wall of the rotating shaft (1902); the delivery pipe (2105) is communicated with the interior of the delivery groove (2103); the delivery pipe (2105) is fixedly connected to the middle position of the piston chamber (2001); and the delivery pipe (2105) is communicated with the interior of the piston chamber (2001).

6. A pulverizing and grinding device for paint and coating processing according to claim 2, characterized in that: The opening and closing mechanism (22) comprises a sealing groove (2204) extending through a side wall of the piston plate (2002), two matching sealing blocks (2201) being sealingly and slidably connected in the sealing groove (2204), one end of each of the two sealing blocks (2201) being fixedly connected to a magnetic block (2202), and the sealing groove (2204) extending through the gas delivery groove (2009) and communicating with the interior of the gas delivery groove (2009).

7. A pulverizing and grinding device for paint and coating processing according to claim 6, characterized in that: The opening and closing mechanism (22) also includes a first magnetic plate (2203) and a second magnetic plate (2205) fixedly connected to the inner wall of the piston chamber (2001), wherein the first magnetic plate (2203) is fixedly connected to the middle position of the piston chamber (2001), and the second magnetic plate (2205) is fixedly connected to the upper and lower sides of the piston chamber (2001), and the first magnetic plate (2203) and the magnetic block (2202) have the same magnetic properties on the opposite side, and the second magnetic plate (2205) and the magnetic block (2202) have opposite magnetic properties on the opposite side.

8. The pulverizing and grinding device for paint and coating processing according to claim 1 is characterized in that: The grinding assembly comprises two grooves (8) formed on the side wall of the grinding box (4), wherein slide plates (9) are slidably connected in the two grooves (8), wherein a first motor (10) is fixedly connected to the side wall of one of the slide plates (9), wherein an output end of the first motor (10) is fixedly connected to a first gear (11), and adjacent sides of the two slide plates (9) are rotatably connected to a movable roller (13), wherein one end of the movable roller (13) is fixedly connected to a first gear ring (12), and the first gear ring (12) is connected to the first gear (11). The grinding box (4) is provided with a second motor (14) fixedly connected to the side wall of the grinding box (4), the output end of the second motor (14) is fixedly connected to the second gear (15), a fixed roller (17) is rotatably connected inside the grinding box (4), one end of the fixed roller (17) is fixedly connected to the second gear ring (16), the second gear ring (16) is meshed with the second gear (15), a pressure relief device (7) is installed on the side wall of the grinding box (4), and the pressure relief end of the pressure relief device (7) is fixedly connected to the slide plate (9).

9. A pulverizing and grinding device for paint and coating processing according to claim 8, characterized in that: The two groups of cooling mechanisms (18) are respectively arranged in the fixed roller (17) and the movable roller (13), and a plurality of magnetic strips (1807) are fixedly connected in both the movable roller (13) and the fixed roller (17), and the magnetic strips (1807) have the same magnetic properties as the magnetic sheets (1810) directly opposite to each other.

10. A pulverizing and grinding device for paint and coating processing according to claim 1, characterized in that: A feeding pipe (2) is fixedly connected to the side wall of the mixing barrel (1), a discharge pipe (3) is fixedly connected to the bottom of the mixing barrel (1), a feeding hopper (5) is fixedly connected to the top of the grinding box (4), and the grinding box (4) and the mixing barrel (1) are connected via an inlet (6), and the inlet (6) is arranged in the middle of the top of the mixing barrel (1).

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