Water-based paint raw material grinding machine and grinding method

Abstract

The invention discloses a water-based paint raw material grinding machine and a grinding method, and belongs to the technical field of grinding devices.The water-based paint raw material grinding machine comprises a grinding block used for grinding and two grinding tables arranged on the outer side of the grinding block in a sleeving mode, a grinding groove used for containing raw materials is formed between the grinding block and the grinding tables, and the grinding tables are arranged in the grinding groove. When the two grinding tables are attached to each other, a complete cylinder structure can be defined and can be arranged on the outer side of the grinding block in a sleeving mode. The outer surface of the grinding block can be cleaned through bristles on the base plate, when a worker starts an electromagnet to be powered on, a connecting rod can be driven to move downwards through attraction force of the electromagnet to a flange part, so that a pressing ring extrudes a transverse rod, one end of the transverse rod can be inserted into a limiting hole, the grinding block can synchronously drive the base plate to rotate, and the grinding effect is improved. And the inner wall of the grinding table is cleaned through the bristles on the outer surface of the base plate.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding devices, and particularly relates to a grinding machine and a grinding method for raw materials of water-based coatings. Background Art

[0002] When preparing water-based coatings, it is necessary to go through three major processes: pulping, paint mixing, and filling. In the pulping process, water and inhibitors need to be mixed first, and then powder materials are added and mixed again. The powder materials are mainly titanium dioxide, lithopone, talc powder, or heavy calcium. When preparing these powder materials, large raw materials need to be crushed into small raw materials by a crusher, and then the small raw materials are ground into powder materials by a grinding device.

[0003] Chinese Patent CN217962824U discloses a two-way grinding device for water-based coating preparation. After the driven gear rotates, it drives another driven gear to rotate and engage with the direction-changing gear. After the direction-changing gear rotates, it engages with the tooth ring to drive the grinding kettle to rotate. Due to the setting of the direction-changing gear, the rotation directions of the grinding stone and the grinding kettle are opposite, so that the raw materials are subjected to extrusion forces in two directions during grinding, thereby improving the grinding efficiency.

[0004] The above device crushes the raw materials through the arranged grinding stone and grinding kettle, and cleans the powder on the surfaces of the grinding stone and the grinding kettle through a cleaning brush. However, in actual use, since the grinding stone and the grinding kettle are relatively close to each other, it is difficult to clean the grinding positions on the grinding stone and the grinding kettle through the above structure. In summary, the above device still has room for improvement.

[0005] Therefore, it is necessary to provide a grinding machine and a grinding method for raw materials of water-based coatings to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a grinding machine and a grinding method for raw materials of water-based coatings to solve the problem that in the above background art, the existing device crushes the raw materials through the arranged grinding stone and grinding kettle, and cleans the powder on the surfaces of the grinding stone and the grinding kettle through a cleaning brush, but in actual use, it is difficult to clean the grinding positions on the grinding stone and the grinding kettle.

[0007] Based on the above idea, the present invention provides the following technical solution: A grinding machine for raw materials of water-based coatings includes a grinding block for grinding and a grinding table sleeved outside the grinding block. A grinding groove for accommodating raw materials is formed between the grinding block and the grinding table. There are two grinding tables, and when the two grinding tables are mutually attached, they can form a complete cylindrical structure and can be sleeved outside the grinding block; A cleaning component is arranged between the two grinding tables, and the cleaning component is detachably connected to the pushing component between the two grinding tables. During the process of the two grinding tables moving away from each other, the pushing component can drive the cleaning component to move towards the direction close to the grinding block.

[0008] As a further solution of the present invention: The cleaning component includes a substrate and bristles arranged on both sides of the substrate. A slot is formed on the outer side surface of the substrate, and the cross-section of the slot is T-shaped.

[0009] As a further solution of the present invention: The pushing component includes a sliding rod arranged outside the substrate. An insertion block that cooperates with the slot is integrally formed at one end of the sliding rod close to the substrate. Elastic blocks are connected to both sides of the insertion block, and a first inclined surface is arranged at the end of the elastic block. During the process of inserting the insertion block into the slot, the elastic block can enter the slot through the arranged first inclined surface.

[0010] As a further solution of the present invention: Convex platforms are fixedly arranged on both sides of the sliding rod. Inclined limiting grooves are formed on both convex platforms. A bracket is fixedly installed on the outer side surface of the grinding table, and a limiting post is fixedly arranged at one end of the bracket close to the convex platform. The limiting post is inserted into the limiting groove and can slide relative to the limiting groove. When the two grinding tables move away from each other, the cooperation between the limiting post and the limiting groove can drive the sliding rod close to the grinding block.

[0011] As a further solution of the present invention: An insertion plate is fixedly arranged at the bottom end of the substrate, and the insertion plate is in a horizontal state. A rotating shaft is arranged at the bottom end face of the grinding block, and a blind hole that cooperates with the rotating shaft is formed at the bottom end face of the grinding block, so that the rotating shaft can be connected to the grinding block through a clamping component. An annular plate is fixedly sleeved on the outer side of the rotating shaft, a strip-shaped groove that cooperates with the insertion plate is formed on the outer peripheral wall of the annular plate, and a supporting block is arranged at the bottom end of the rotating shaft.

[0012] As a further solution of the present invention: The clamping component includes a cross bar that is arranged at the rotating shaft and elastically connected to the rotating shaft. A limiting hole that cooperates with the cross bar is formed on the inner wall of the blind hole. A connecting rod is arranged at the axis of the rotating shaft, and the connecting rod can move along the axis direction of the rotating shaft and is elastically matched with the rotating shaft. A pressing ring is fixedly sleeved on the connecting rod. The upper and lower end faces of the pressing ring and at the edges are both arranged as conical surfaces. When the connecting rod moves downward, the conical surface on the pressing ring can squeeze the cross bar, so that one end of the cross bar can be inserted into the limiting hole.

[0013] As a further solution of the present invention: An electromagnet is fixedly embedded at the central position of the supporting block, and a flange portion is arranged at the bottom end of the connecting rod, and the flange portion is made of iron.

[0014] As a further solution of the present invention: A cylinder body is sleeved outside the grinding table, and the sliding rod passes through the cylinder body and is slidably matched with the cylinder body.

[0015] As a further solution of the present invention: An avoidance groove for accommodating the substrate and the insertion plate is formed on the outer peripheral wall of the grinding table.

[0016] A method of grinding using the above-mentioned water-based coating raw material grinder, comprising the following steps: importing the raw material between the grinding block and the grinding table, and crushing the raw material through the grinding groove; driving the two grinding tables to separate from each other, so that the pushing component can push the cleaning component close to the grinding block, and cleaning the outer surface of the grinding block through the cleaning component.

[0017] Compared with the prior art, the beneficial effect of the present invention is that the outer surface of the grinding block can be cleaned by the bristles on the substrate. When the staff activates the electromagnet to make it energized, the suction force of the electromagnet on the flange part can drive the connecting rod to move downward, so that the pressing ring squeezes the cross bar, so that one end of the cross bar can be inserted into the limiting hole, so that the grinding block can drive the substrate to rotate synchronously, and then clean the inner wall of the grinding table through the bristles on the outer surface of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the drawings and embodiments: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the cylinder of the present invention; Figure 3 is a schematic diagram of the support table structure of the present invention; Figure 4 is a schematic diagram of the pushing component structure of the present invention; Figure 5 is a schematic diagram of the avoidance groove structure of the present invention; Figure 6 is a schematic diagram of the connection structure between the sliding rod and the substrate of the present invention; Figure 7 is a schematic diagram of the cleaning component structure of the present invention; Figure 8 is a schematic diagram of the position of the detection unit of the present invention; Figure 9 is the present invention Figure 5 The enlarged structure schematic diagram at A; Figure 10 is the present invention Figure 5 The enlarged structure schematic diagram at B; Figure 11 is the present invention Figure 5 The enlarged structure schematic diagram at C; Figure 12 is a schematic diagram of the pressing block structure of the present invention.

[0019] In the figure: 1, cylinder body; 101, feed pipe; 102, support platform; 2, slide bar; 201, boss; 202, insertion block; 3, telescopic unit; 4, transmission unit; 5, grinding block; 501, blind hole; 5011, limit hole; 6, grinding table; 601, avoidance groove; 7, support block; 701, collar; 8, limit post; 9, limit groove; 10, base plate; 1001, slot; 1002, brush hair; 11, insertion plate; 1101, card slot; 12, lifting rod; 1201, ejector rod; 13, connecting rod; 1301, flange part; 14, grinding groove; 15, annular plate; 1501, strip groove; 16, clamping block; 1601, first inclined surface; 17, pressing strip; 1701, extrusion surface; 18, pressing block; 19, second inclined surface; 20, protrusion; 21, detection unit; 22, cross bar; 23, fixing block; 24, stop block; 25, pressing ring; 2501, conical surface; 26, rotating shaft; 27, electromagnet; 28, clamping strip. Specific embodiments

[0020] As Figures 1 - 10 shown, a grinding machine for water-based coating raw materials includes a grinding block 5 for grinding and a grinding table 6 sleeved outside the grinding block 5, and a grinding groove 14 for accommodating raw materials is formed between the grinding block 5 and the grinding table 6. Of course, the space of the grinding groove 14 gradually decreases from top to bottom, which is conducive to gradually crushing the raw materials.

[0021] Furthermore, in combination with Figures 1 - 5 shown, there are two grinding tables 6 in this solution, and the whole grinding table 6 is semi-cylindrical. When the two grinding tables 6 are mutually attached, they can enclose a complete cylindrical structure and can be sleeved outside the grinding block 5, so that the grinding block 5 is located at the center position of the two grinding tables 6. In actual use, the raw materials of the water-based coating are put above the grinding block 5 (the top of the grinding block 5 is a conical surface). When the raw materials fall into the grinding groove 14, the raw materials can be ground through the cooperation between the grinding block 5 and the grinding table 6.

[0022] In combination with Figures 3 - 8 shown, a cleaning component is arranged between the two grinding tables 6, and the cleaning component is detachably connected to the pushing component between the two grinding tables 6. In actual use, when the two grinding tables 6 move away from each other, the pushing component can drive the cleaning component to move towards the direction close to the grinding block 5, which is conducive to cleaning the residual raw materials on the surface of the grinding block 5.

[0023] In combination with Figures 6 - 8 shown, the cleaning component includes a base plate 10 and brush hairs 1002 fixed on both sides of the base plate 10. The brush hairs 1002 can be made of plastic or nylon materials. A slot 1001 is opened on the outer side surface of the base plate 10, and the cross section of the slot 1001 is T-shaped; The above-mentioned pushing component includes a sliding rod 2 arranged outside the substrate 10. One end of the sliding rod 2 close to the substrate 10 is integrally formed with a plug 202 that matches the slot 1001. Refer to Figure 6 As shown, slots for the sliding of the clamping blocks 16 are formed on both side surfaces of the plug 202, and springs are fixedly arranged between the inner end surfaces of the slots and the clamping blocks 16. Further, a first inclined surface 1601 is arranged on the top end of the clamping block 16 and on the side close to the substrate 10. During the process of the sliding rod 2 approaching the substrate 10, the plug 202 can be inserted into the slot 1001. The first inclined surface 1601 enables the clamping block 16 to enter the slot 1001. When the clamping block 16 pops out and cooperates with the slot 1001, the sliding rod 2 is clamped with the substrate 10; Further, in combination with Figures 1 - 7 As shown, bosses 201 are fixedly arranged on both sides of the sliding rod 2, so that the sliding rod 2 and the bosses 201 as a whole are in a "cross" shape. Limiting slots 9 are formed on both of the bosses 201, and the two limiting slots 9 are arranged in an "eight" shape. A bracket is fixedly installed on the outer side surface of the grinding table 6, and a limiting post 8 is fixedly arranged at one end of the bracket close to the support table 102. The limiting post 8 is inserted into the limiting slot 9 and can slide relative to the limiting slot 9; In combination with Figures 1 - 2 As shown, a cylinder 1 is sleeved outside the grinding table 6. The above-mentioned sliding rod 2 passes through the cylinder 1 and is in sliding fit with the cylinder 1, so that the sliding rod 2 can move relative to the cylinder 1 along its diameter direction. Of course, in actual use, the sliding rod 2 can also be elastically connected to the cylinder 1 through a first spring.

[0024] With this structure, when the two grinding tables 6 are separated, the cooperation between the limiting post 8 and the limiting slot 9 can drive the sliding rod 2 to gradually approach the grinding block 5, so that the bristles 1002 on the substrate 10 can contact the outer surface of the grinding block 5. When the grinding block 5 rotates relative to the grinding table 6, the bristles 1002 clean the raw materials remaining on the outer surface of the grinding block 5. After that, when the two grinding tables 6 approach each other, the pressure of the limiting post 8 on the side wall of the limiting slot 9 can drive the sliding rod 2 and the substrate 10 at one end of the sliding rod 2 to gradually move away from the grinding block 5.

[0025] In combination with Figure 5 、 Figure 8 As shown, a plug board 11 is fixedly arranged at the bottom end of the substrate 10, and the plug board 11 is in a horizontal state. Refer to Figure 5 As shown, an avoidance groove 601 for accommodating structures such as the substrate 10 and the plug board 11 is formed on the outer peripheral wall of the grinding table 6. When the two grinding tables 6 are attached to each other, the substrate 10 and the plug board 11 can be completely received in the avoidance groove 601, so as to avoid interference between the substrate 10 or the plug board 11 and the grinding table 6; A rotating shaft 26 is arranged at the bottom end face of the grinding block 5. Refer to Figures 5 - 7As shown, a blind hole 501 adapted to the rotating shaft 26 is provided at the bottom end face of the grinding block 5. The rotating shaft 26 can be rotatably engaged with the grinding block 5 through a bearing, so that the rotating shaft 26 can be connected to the grinding block 5 through a clamping assembly, and the grinding table 6 can drive the rotating shaft 26 to rotate synchronously through the clamping assembly; Further, an annular plate 15 is fixedly sleeved on the outer side of the rotating shaft 26, and a strip-shaped groove 1501 adapted to the inserting plate 11 is provided on the outer peripheral wall of the annular plate 15. Specifically, refer to Figure 8 as shown; A support block 7 is provided at the bottom end of the rotating shaft 26. During actual use, a friction unit can be arranged between the rotating shaft 26 and the support block 7 to increase the mutual acting force between the rotating shaft 26 and the support block 7; In the initial state, the rotating shaft 26 is not connected to the grinding block 5 through the clamping assembly, and the strip-shaped groove 1501 on the annular plate 15 and the inserting plate 11 are on the same straight line. When the base plate 10 is gradually moved closer to the grinding block 5 through the sliding rod 2, the inserting plate 11 can be inserted into the strip-shaped groove 1501, and the acting force between the rotating shaft 26 and the support block 7 can keep the rotating shaft 26 and the annular plate 15 stable, and further keep the base plate 10 stable. During the rotation of the grinding block 5, the outer surface of the grinding block 5 can be cleaned by the bristles 1002 on the base plate 10. When the rotating shaft 26 is connected to the grinding block 5 through the clamping assembly, the grinding block 5 can drive the base plate 10 to rotate synchronously. The projection of the slot 1001 on the horizontal plane is arc-shaped as a whole, and the center of the slot 1001 coincides with the axis of the grinding block 5. With this structure, when the grinding block 5 drives the base plate 10 to rotate through the annular plate 15, the inserting block 202 and the clamping block 16 can move out of the slot 1001 and do not interfere with the slot 1001. With this structure, the base plate 10 can be engaged with the grinding block 5 and rotate synchronously with the grinding block 5. During this process, the inner wall of the grinding table 6 can be cleaned by the bristles 1002 on the outer side of the base plate 10.

[0026] Combined with Figure 11 as shown, the clamping assembly includes a cross bar 22 disposed at the rotating shaft 26 and elastically connected to the rotating shaft 26, and a limiting hole 5011 adapted to the cross bar 22 is provided on the inner wall of the blind hole 501. The number of the limiting holes 5011 is set to be multiple and distributed in an annular array; Combined with Figures 5 - 11 as shown, a connecting rod 13 is disposed on the axis of the rotating shaft 26. The connecting rod 13 penetrates through the rotating shaft 26 and can slide up and down relative to the rotating shaft 26. Specifically, a through hole for installing the connecting rod 13 is provided at the axis of the rotating shaft 26. Refer to Figure 11As shown, an annular groove is provided on the inner wall of the through hole and at the cross bar 22, and a pressing ring 25 is fixedly sleeved on the connecting rod 13. The pressing ring 25 is in the annular groove, and the upper and lower end surfaces of the pressing ring 25 and the edges thereof are both provided with conical surfaces 2501; Furthermore, the rotating shaft 26 is provided with a transverse groove for installing the cross bar 22. Specifically, the transverse groove is connected with the annular groove. A fixing block 23 is fixedly arranged in the transverse groove, and the cross bar 22 passes through the fixing block 23 and slides with it. In addition, a stopper 24 is fixedly sleeved outside the cross bar 22, and a limit spring is arranged between the stopper 24 and the fixing block 23. Of course, the limit spring can be sleeved on the outside of the cross bar 22. Through this structure, when the connecting rod 13 moves downward, the conical surface 2501 on the pressure ring 25 can squeeze the cross bar 22, so that the cross bar 22 overcomes the pressure of the limit spring and moves toward the direction of the limit hole 5011. When one end of the cross bar 22 is inserted into the limit hole 5011, the rotating shaft 26 is connected to the grinding table 6. Combination Figure 10 As shown, in order to drive the connecting rod 13 to move, the present solution has an electromagnet 27 fixedly embedded at the center position of the support block 7, and the bottom end of the connecting rod 13 is integrally formed with a flange 1301, and the flange 1301 is made of iron. Specifically, a circular hole is opened on the bottom end face of the rotating shaft 26, and the flange 1301 slides in the circular hole, and a tension spring is fixedly arranged between the top wall of the circular hole and the flange 1301. In the initial state, the electromagnet 27 is not energized, and the pressure ring 25 is staggered with the cross bar 22. In this state, the rotating shaft 26 is not connected to the grinding block 5, so that the bristles 1002 on the substrate 10 can clean the outer surface of the grinding block 5. However, when the staff starts the electromagnet 27 to energize it, the flange is energized by the electromagnet 27. The suction force of 1301 can drive the connecting rod 13 to move downward, so that the pressure ring 25 squeezes the cross bar 22, so that one end of the cross bar 22 can be inserted into the limiting hole 5011, so that the grinding block 5 can synchronously drive the substrate 10 to rotate, and then the inner wall of the grinding table 6 is cleaned by the bristles 1002 on the outer surface of the substrate 10. Of course, when the two grinding tables 6 are away from each other to the extreme position, the substrate 10 can be pushed to the inside of the grinding table 6, so as to avoid the interference of the substrate 10 with the grinding table 6 when the grinding block 5 rotates. During use, when the sliding rod 2 pushes the substrate 10 to be located on the inside of the grinding table 6, the two grinding tables 6 can be driven close to each other until they are fitted together, so that the substrate 10 is limited between the grinding block 5 and the grinding table 6, which is conducive to the stable cleaning of the inner wall of the grinding table 6.

[0027] Although the above structure can clean the grinding block 5 and the grinding table 6, when the two grinding tables 6 are in contact with each other, the space between the grinding table 6 and the grinding block 5 (the grinding groove 14) is relatively narrow. Therefore, to a certain extent, it will affect the cleaning effect of the bristles 1002. If the two grinding tables 6 are kept separated, when the grinding block 5 rotates at a high speed, the substrate 10 has a tendency to move away from the grinding block 5 under the action of centrifugal force. Therefore, when the substrate 10 moves to the gap between the two grinding tables 6, the substrate 10 will be thrown out, thus interfering with the grinding table 6; Based on this problem, in this solution, a lifting rod 12 is provided below the annular plate 15. Specifically, a protrusion 20 is fixedly provided on the inner wall of the lifting rod 12, and a vertical rod is fixedly installed on the bottom surface of the annular plate 15. The vertical rod passes through the protrusion 20 and is slidably matched with it. A support spring is provided between the annular plate 15 and the protrusion 20. The support spring can be sleeved outside the vertical rod. Through this structure, the lifting rod 12 and the annular plate 15 are elastically connected. Combined with Figure 9 As shown, the top end of the lifting rod 12 is elastically connected with a clamping strip 28. The clamping strip 28 passes through the annular plate 15 and extends into the strip-shaped groove 1501. Both sides of the top of the clamping strip 28 are provided with second inclined surfaces 19. Specifically, a receiving groove for slidably matching with the clamping strip 28 is formed on the lifting rod 12. As can be seen from Figure 9 it, the cross-sections of the clamping strip 28 and the receiving groove can both be "cross" shaped, and a second spring is fixedly provided between the inner bottom surface of the receiving groove and the clamping strip 28. Combined with Figures 5 - 6 As shown, a plurality of card slots 1101 are formed on the bottom surface of the insertion plate 11. As the insertion plate 11 is inserted into the strip-shaped groove 1501, the insertion plate 11 can squeeze the second inclined surface 19, so that the clamping strip 28 moves downward. However, when the clamping strip 28 is aligned with the card slot 1101, the cooperation between the clamping strip 28 and the card slot 1101 prevents the substrate 10 from being thrown out; Further, a collar 701 is sleeved outside the support block 7. A short rod is fixedly provided between the inner wall of the collar 701 and the support block 7, and a long rod is fixedly provided between the collar 701 and the inner wall of the cylinder body 1. Combined with Figures 8 - 10 As shown, a top rod 1201 is fixedly provided at the bottom end of the lifting rod 12, and a pressing strip 17 is fixedly provided at the top surface of the collar 701. Both ends of the pressing strip 17 are provided with inclined pressing surfaces 1701. There are two pressing strips 17, and the two pressing strips 17 are respectively located at the joints of the two grinding tables 6; In the initial state, the ejector rod 1201 is located above the pressure strip 17. At this time, the clamping strip 28 can be pressed by the lifting rod 12. Therefore, when the two grinding tables 6 are separated from each other and the insertion plate 11 is inserted into the strip-shaped groove 1501, the cooperation between the clamping strip 28 and the clamping groove 1101 enables the insertion plate 11 and the annular plate 15 to maintain stability. When the rotating shaft 26 is clamped with the grinding table 6, the grinding table 6 can drive the substrate 10 to rotate synchronously when rotating, so as to clean the inner wall of the grinding table 6. Specifically, when the substrate 10 moves to the inside of the grinding table 6 and coincides with the grinding table 6, the ejector rod 1201 can move down from the pressure strip 17, so that the lifting rod 12 bounces downward and drives the clamping strip 28 to move downward synchronously, so that the clamping strip 28 is separated from the clamping groove 1101. At this time, when the grinding block 5 rotates, the substrate 10 can be thrown out, so that the substrate 10 can approach the grinding table 6, and then the inner wall of the grinding table 6 can be cleaned by the bristles 1002 on the outer side of the substrate 10. When the ejector rod 1201 is about to move to the gap between the two grinding tables 6, the ejector rod 1201 can move above the pressure strip 17 through the extrusion surface 1701, so as to prompt the lifting rod 12 to drive the clamping strip 28 to move upward, so that one end of the clamping strip 28 is inserted into the clamping groove 1101, so as to prevent the substrate 10 from being thrown out by the grinding block 5. Through this structure, the inner wall of the grinding table 6 can be cleaned when the two grinding tables 6 are separated. After the cleaning is completed, the substrate 10 is stopped at one end of the sliding rod 2 by the grinding block 5, and the two grinding tables 6 are driven to separate to the limit position, so that the insertion block 202 at the end of the sliding rod 2 can be inserted into the slot 1001, and then the cooperation between the clamping block 16 and the slot 1001 enables the substrate 10 to be pulled back into the avoidance groove 601 when the two grinding tables 6 are fitted. Since the acting force for pulling the substrate 10 by the sliding rod 2 is large, the pressure of the clamping groove 1101 on the clamping strip 28 is sufficient to prompt the clamping strip 28 to move downward, which is beneficial to pulling out the insertion plate 11 from the strip-shaped groove 1501.

[0028] Two telescopic units 3 are fixedly installed on the outer side of the cylinder body 1. The telescopic unit 3 can be a cylinder or a hydraulic rod. The telescopic end of the telescopic unit 3 passes through the cylinder body 1 and is fixedly connected with the grinding table 6. The telescopic end of the telescopic unit 3 can slide relative to the cylinder body 1 to drive the grinding table 6 to move.

[0029] A connecting shaft (not shown in the figure) is fixedly arranged at the top end of the grinding block 5. The connecting shaft passes through the cylinder body 1 and is rotatably connected with it, and the connecting shaft cannot move up and down relative to the cylinder body 1. In actual application, a retaining ring can be fixedly sleeved on the outer side of the connecting shaft so that the retaining ring is located at the top surface of the cylinder body 1. A motor is installed at the cylinder body 1, and the output shaft of the motor is connected with the connecting shaft through a transmission unit 4. The transmission unit 4 can be a chain or a belt. Of course, the motor and the connecting shaft can also be driven to be connected through a gear set to drive the grinding block 5 to rotate.

[0030] At the top end of the cylinder body 1, a feed pipe 101 is fixedly arranged. The feed pipe 101 passes through the cylinder body 1 and is located above the grinding block 5, so that the raw materials introduced through the feed pipe 101 can fall between the grinding block 5 and the grinding table 6.

[0031] Referring to Figure 3 As shown, on both sides of the inner wall of the cylinder body 1, support platforms 102 are fixedly arranged, and the grinding table 6 slides on the top of the support platforms 102.

[0032] Combined with Figure 7 As shown, during actual use, the inner wall of the substrate 10 can be parallel to the outer surface of the grinding block 5, and the outer wall of the substrate 10 can be parallel to the inner wall of the grinding table 6.

[0033] Combined with Figure 8 As shown, during actual use, a support frame can be installed at the long rod. The support frame is located directly below the sliding rod 2, and a detection unit 21 is installed on the support frame near the rotating shaft 26. The detection unit 21 can be an infrared sensor or an ultrasonic sensor, etc. The detection unit 21 is connected to the above-mentioned motor to control the operation of the motor. After the cleaning is completed, the detection unit 21 is started. When the detection unit 21 detects that the lifting rod 12 rotates to the sliding rod 2, the rotation of the grinding block 5 can be stopped through the detection unit 21, which is beneficial for the insertion block 202 at one end of the sliding rod 2 to be docked with the substrate 10.

[0034] Combined with Figure 12 As shown, in order to increase the acting force between the rotating shaft 26 and the support block 7, a rubber pad can be bonded to the bottom end face of the rotating shaft 26, or a plurality of positioning holes can be opened on the bottom end face of the rotating shaft 26. The top surface of the support block 7 is elastically connected with a pressing block 18 that matches the positioning holes through a third spring. The top end of the pressing block 18 can be spherical. When the outer wall of the grinding block 5 is cleaned by the brush hair 1002, this structure can keep the rotating shaft 26 stable. When the rotating shaft 26 is clamped with the grinding block 5, as the grinding block 5 rotates, the positioning holes are squeezed by the spherical surface on the pressing block 18, so that the pressing block 18 shrinks into the support block 7.

Claims

1. An aqueous coating raw material grinder, comprising a grinding block for grinding and a grinding table sleeved outside the grinding block, a grinding groove for accommodating the raw material is formed between the grinding block and the grinding table, and it is characterized in that: There are two grinding tables. When the two grinding tables are attached to each other, they can form a complete cylindrical structure and can be sleeved outside the grinding block. A cleaning component is arranged between the two grinding tables, and the cleaning component is detachably connected to the pushing component between the two grinding tables. During the process of the two grinding tables moving away from each other, the pushing component can drive the cleaning component to move towards the direction close to the grinding block.

2. The grinding machine for waterborne coating raw materials according to claim 1, characterized in that: The cleaning component includes a substrate and bristles arranged on both sides of the substrate. A slot is opened on the outer side surface of the substrate, and the cross-section of the slot is T-shaped.

3. The grinding machine for waterborne coating raw materials according to claim 2, wherein: The pushing component includes a sliding rod arranged outside the substrate. An insertion block matched with the slot is integrally formed at one end of the sliding rod close to the substrate. Elastic blocks are connected to both sides of the insertion block. A first inclined surface is arranged at the end of the block. During the process of the insertion block being inserted into the slot, the block can enter the slot through the arranged first inclined surface.

4. The grinding machine for waterborne coating raw materials according to claim 3, characterized in that: Convex platforms are fixedly arranged on both sides of the sliding rod. Inclined limiting grooves are opened on both the convex platforms. A bracket is fixedly installed on the outer side surface of the grinding table, and a limiting column is fixedly arranged at one end of the bracket close to the convex platform. The limiting column is inserted into the limiting groove and can slide relative to the limiting groove. When the two grinding tables move away from each other, the cooperation of the limiting column and the limiting groove can drive the sliding rod close to the grinding block.

5. The grinding machine for water-based coating raw materials according to claim 4, characterized in that: An insertion plate is fixedly arranged at the bottom end of the substrate, and the insertion plate is in a horizontal state. A rotating shaft is arranged at the bottom end face of the grinding block, and a blind hole matched with the rotating shaft is opened at the bottom end face of the grinding block, so that the rotating shaft can be connected to the grinding block through a clamping component. An annular plate is fixedly sleeved on the outer side of the rotating shaft, a strip-shaped groove matched with the insertion plate is opened on the outer peripheral wall of the annular plate, and a supporting block is arranged at the bottom end of the rotating shaft.

6. The grinder for waterborne coating raw materials according to claim 5, characterized in that: The clamping component includes a cross bar arranged at the rotating shaft and elastically connected to the rotating shaft. A limiting hole matched with the cross bar is opened on the inner wall of the blind hole. A connecting rod is arranged at the axis of the rotating shaft. The connecting rod can move along the axis direction of the rotating shaft and is elastically matched with the rotating shaft. A pressing ring is fixedly sleeved on the connecting rod. The upper and lower end faces of the pressing ring and at the edges are both arranged as conical surfaces. When the connecting rod moves downward, the conical surface on the pressing ring can squeeze the cross bar, so that one end of the cross bar can be inserted into the limiting hole.

7. The grinder for waterborne coating raw materials according to claim 6, characterized in that: An electromagnet is fixedly embedded at the central position of the supporting block. A flange part is arranged at the bottom end of the connecting rod, and the flange part is made of iron.

8. The grinder for waterborne coating raw materials according to claim 3, wherein: A cylinder body is sleeved outside the grinding table, and the sliding rod passes through the cylinder body and is slidably matched with the cylinder body.

9. The grinder for the raw materials of the waterborne coating according to claim 5, characterized in that: An avoidance groove for accommodating the substrate and the insertion plate is opened on the outer peripheral wall of the grinding table.

10. A method of grinding using the aqueous coating material grinder according to any one of claims 1-9, characterized in that, It includes the following steps: introducing raw materials between the grinding block and the grinding table, and crushing the raw materials through the grinding groove; driving the two grinding tables to separate from each other, so that the pushing component can push the cleaning component close to the grinding block, and cleaning the outer surface of the grinding block through the cleaning component.

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