Paint raw material grinding mechanism

Abstract

The utility model relates to the technical field of grinding equipment, and in particular to a coating raw material grinding mechanism, including a base, a bottom bracket rotatably mounted on the base, an inner tank embedded in the bottom bracket, a stirring shaft rotatably mounted on the bottom axis of the inner tank, crushing rollers are arranged at intervals on the stirring shaft, a plurality of grinding balls are distributed in the inner tank, a first motor is fixed at the lower end of the bottom bracket, and the output shaft of the first motor is connected to the stirring shaft. When in use, the crushing roller on the stirring shaft continuously stirs the mineral material and the grinding balls, so that the mineral material is continuously crushed; a reciprocating mechanism is arranged on the base, and the bottom bracket is driven to swing back and forth by the reciprocating mechanism, so that the inner tank is reciprocated positively and negatively deflected while the stirring shaft rotates, so that the mineral material and the grinding balls are continuously shaken in the inner tank, that is, the jumping amplitude of the mineral material and the grinding balls is increased, the grinding efficiency is improved, and the mineral material is continuously turned sideways, and the mineral material is continuously tumbled, so that the existence of a stirring dead angle is avoided, so that all the mineral materials can be fully impacted and crushed by the grinding balls, and the grinding effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a coating raw material grinding mechanism. Background Art

[0002] Paints are generally composed of four basic ingredients: film-forming substances (resins, emulsions, etc.), pigments (coloring pigments, body pigments), solvents, and additives. Common raw materials for paints include lime powder, heavy calcium powder, double fly ash, calcium oxide, calcium hydroxide, light calcium powder, cellulose, rubber powder, etc. As raw materials for paints, lime powder is an indispensable raw material for the production of interior and exterior wall paints. As one of the raw materials for producing paints, lime powder is usually used as an aggregate in the production of paints to increase the scraping, water resistance, strength and construction performance of paint products.

[0003] During the processing and preparation of coatings, the raw materials need to be ground to grind the minerals into powder for the next step of processing. Grinding requires a raw material grinder, the main principle of which is to use the grinding balls in the inner cavity to quickly impact the minerals during high-speed rotation and continuously break them into powder. However, there are certain dead corners for stirring when the vertical ball mill is used. The mineral particles in the dead corners will not be easily stirred and will not fully collide with the grinding balls, resulting in incomplete grinding of some particles and residues.

[0004] To this end, the utility model provides a coating raw material grinding mechanism to ensure that all input minerals can be fully impacted and crushed by grinding balls, thereby improving the quality of the powder. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a coating raw material grinding mechanism.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The coating raw material grinding mechanism comprises a base, on which a bottom bracket is rotatably mounted, an inner tank is embedded in the bottom bracket, a cover is placed on the upper end of the inner tank, the cover is connected to the bottom bracket via fasteners, a stirring shaft penetrating the bottom wall of the inner tank is rotatably mounted on the bottom axis of the inner tank, crushing rollers are arranged at intervals on the stirring shaft, a plurality of grinding balls are distributed in the inner tank, a through hole is arranged on the axis of the bottom wall of the bottom bracket, a first motor is fixed to the lower end of the bottom bracket, a rectangular shaft is fixed to the output shaft of the first motor, a rectangular hole matching the rectangular shaft is arranged at the bottom end of the stirring shaft, a reciprocating mechanism matching the bottom bracket is arranged on the base, and the bottom bracket is driven to swing back and forth by the reciprocating mechanism.

[0008] Preferably, a plurality of screws are arranged in a circular array around the upper end of the bottom end, and circular holes corresponding to the screws are arranged around the upper end of the inner liner and the lower end of the cover. Nuts are threadedly mounted on the screws, and the nuts are against the surface of the cover.

[0009] Preferably, the length of the rectangular shaft is greater than the length of the screw.

[0010] Preferably, a sleeve is threadedly mounted on the lower end of the base, and the first motor is embedded in the sleeve.

[0011] Preferably, the sleeve side wall has a plurality of hollow holes in a circular array around the periphery.

[0012] Preferably, the reciprocating mechanism includes a turntable and a half gear installed on the base for staggered rotation, the turntable is driven by a second motor fixed on the base, an insertion rod is provided at a non-coaxial position of the end face of the turntable, a first slot frame is provided at the upper end of the half gear, the insertion rod is slidably installed in the first slot frame, the half gear is meshed with a rack installed horizontally for sliding on the base, a second slot frame is provided at the end of the rack below the sleeve, and a U-shaped rod inserted into the second slot frame is provided at the bottom end of the sleeve.

[0013] Preferably, a shaft sleeve corresponding to the stirring shaft is provided on the inner top wall of the sealing cover.

[0014] Preferably, the inner wall of the sealing cover is provided with a mesh cover, and the axis of the mesh cover is provided with a guide sleeve that cooperates with the stirring shaft.

[0015] Preferably, the cover is transparent.

[0016] Preferably, a control screen electrically connected to both the first motor and the second motor is provided on the base, for regulating the start and stop and the rotation speed of the first motor and the second motor.

[0017] Compared with the prior art, the utility model provides a coating raw material grinding mechanism, which has the following beneficial effects:

[0018] 1. When in use, put the ore material into the inner tank, then put the inner tank into the bottom bracket, finally buckle the cover and fix it with fasteners, start the first motor and the second motor, the crushing roller on the stirring shaft continuously stirs the ore material and the grinding ball, so that the ore material is continuously crushed; and the second motor drives the turntable to rotate, through the cooperation between the plug rod and the first slot frame, the first slot frame swings back and forth, and then drives the half gear to reciprocate forward and reverse, so that the inner tank reciprocates forward and reverse deflection while the stirring shaft rotates, so that the ore material and the grinding ball are constantly shaking in the inner tank, that is, the jumping amplitude of the ore material and the grinding ball is increased, and the grinding efficiency is improved, and the ore material is continuously turned sideways, and the ore material is continuously tumbled, avoiding the existence of stirring dead angles, so that all the ore materials can be fully impacted and crushed by the grinding balls, and the grinding effect is improved.

[0019] 2. There are multiple hollow holes in the circular array around the side wall of the sleeve, which is convenient for heat dissipation of the first motor and for the wiring of the first motor.

[0020] 4. A mesh cover is provided on the inner wall of the cover to prevent large mineral materials from directly hitting the cover and reduce the wear rate of the cover.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0023] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0024] Figure 3 For the utility model Figure 2 Local schematic diagram of point A.

[0025] Figure 4 For the utility model Figure 2 Partial schematic diagram of point B.

[0026] Figure 5 For the utility model Figure 2 Partial schematic diagram at point C.

[0027] Figure 6 It is a cross-sectional stereoscopic schematic diagram of the inner assembly of the base support of the utility model.

[0028] In the figure: 1. base; 2. bottom bracket; 3. sleeve; 4. first motor; 5. rectangular shaft; 6. inner tank; 7. stirring shaft; 8. rectangular hole; 9. cover; 10. screw; 11. nut; 12. turntable; 13. plug rod; 14. first slot frame; 15. half gear; 16. rack; 17. second slot frame; 18. U-shaped rod; 19. mesh cover; 20. bushing; 21. grinding ball. DETAILED DESCRIPTION

[0029] The following will be combined with the attached embodiment of the utility model Figure 1-6 , the technical solutions in the embodiments of the utility model are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0030] Embodiment 1, in order to solve the problems existing in the prior art, in this embodiment, a coating raw material grinding mechanism is provided, including a base 1, a bottom bracket 2 is rotatably mounted on the base 1, a sleeve 3 is threadedly mounted on the lower end of the bottom bracket 2, a first motor 4 is embedded in the sleeve 3, a rectangular shaft 5 is fixed on the output shaft of the first motor 4, a through hole is provided at the axis center of the lower end of the bottom bracket 2, the rectangular shaft 5 is inserted into the bottom bracket 2 from the through hole, an inner liner 6 is embedded in the bottom bracket 2, a cover 9 is placed on the upper end of the inner liner 6, the cover 9 is connected to the bottom bracket 2 via a fastener, a stirring shaft 7 penetrating the bottom wall of the inner liner 6 is rotatably mounted on the bottom end of the inner liner 6, crushing rollers are arranged at intervals on the stirring shaft 7, a plurality of grinding balls 21 are distributed in the inner liner 6, and a rectangular hole 8 matching the rectangular shaft 5 is provided at the bottom end of the stirring shaft 7;

[0031] A reciprocating mechanism cooperating with the bottom bracket 2 is provided on the base 1, and the bottom bracket 2 is driven to swing back and forth by the reciprocating mechanism. The reciprocating mechanism includes a turntable 12 and a half gear 15 which are installed on the base 1 in an alternating manner. The turntable 12 is driven by a second motor fixed on the base 1. A plunger 13 is provided at a non-coaxial position on the end face of the turntable 12. A first slot frame 14 is provided on the upper end of the half gear 15. The plunger 13 is slidably installed in the first slot frame 14. The length of the straight slot on the first slot frame 14 is greater than or equal to twice the spacing from the plunger 13 to the axis of the turntable 12. The half gear 15 is meshed with a rack 16 horizontally slidably installed on the base 1. A second slot frame 17 is provided at the end of the rack 16 below the sleeve 3. A U-shaped rod 18 inserted into the second slot frame 17 is provided at the bottom end of the sleeve 3; the half gear 15 is always meshed with the rack 16 to avoid damage caused by teeth colliding after disengagement.

[0032] The specific use process of this embodiment is as follows:

[0033] When in use, the ore material is put into the inner container 6, and then the inner container 6 is lifted, and the rectangular shaft 5 is aligned with the rectangular hole 8 so that the rectangular shaft 5 is inserted into the rectangular hole 8, and then the inner container 6 is slowly placed so that the inner container 6 is embedded in the bottom bracket 2, and finally the cover 9 is buckled and fixed by fasteners, and the first motor 4 and the second motor are started. The first motor 4 drives the stirring shaft 7 to rotate through the rectangular shaft 5, and the crushing roller on the stirring shaft 7 continuously stirs the ore material and the grinding ball 21 to rotate, so that the ore material is continuously crushed; and the second motor drives the turntable 12 to rotate, and through the cooperation between the insertion rod 13 and the first slot frame 14, the first slot frame 14 swings back and forth, and then drives the half gear 15 to reciprocate. Forward and reverse rotation, the half gear 15 rotates forward and drives the rack 16 to move toward the sleeve 3. Through the cooperation of the second slot frame 17 and the U-shaped rod 18, the bottom bracket 2 deflects clockwise, and the half gear 15 reverses to drive the rack 16 to move away from the sleeve 3, so that the bottom bracket 2 deflects counterclockwise, so that the inner tank 6 reciprocates forward and reverse deflection while the stirring shaft 7 rotates, so that the mineral material and the grinding ball 21 are constantly shaken in the inner tank 6, that is, the jumping amplitude of the mineral material and the grinding ball 21 is increased, and the grinding efficiency is improved, and the mineral material is constantly turned sideways, and the mineral material is constantly tumbling, avoiding the existence of a stirring dead angle, so that all the mineral materials can be fully impacted and broken by the grinding ball 21, and the grinding effect is improved;

[0034] When the grinding is finished, the cover 9 and the inner container 6 are removed one by one, and then the powdered mineral material is poured out, cleaned, and then filled with mineral material again to grind the next batch of mineral material.

[0035] In the second embodiment, the peripheral annular array of the side wall of the sleeve 3 has a plurality of hollow holes, which is convenient for heat dissipation of the first motor 4 and for the wiring of the first motor 4 .

[0036] In embodiment 3, the cover 9 is transparent, so as to facilitate checking the grinding condition of the mineral material.

[0037] Embodiment 4, the bottom upper periphery has a plurality of screws 10 in an annular array, the upper periphery of the inner liner 6 and the lower periphery of the cover 9 are provided with round holes corresponding to the screws 10, the screws 10 are threadedly mounted with nuts 11, the nuts 11 are against the surface of the cover 9, and the arrangement of the screws 10 and nuts 11 not only makes the inner liner 6 firmly embedded in the bottom bracket 2, but also realizes the fastening connection between the cover 9 and the bottom bracket 2. And the length of the rectangular shaft 5 is greater than the length of the screw 10, so that the rectangular shaft 5 is inserted into the rectangular hole 8 first, and then the inner liner 6 is rotated to adjust the direction, so that the round hole on the inner liner 6 corresponds to the screw 10, and then the inner liner 6 is lowered, so that the inner liner 6 is placed in the bottom bracket 2.

[0038] Embodiment 5: a shaft sleeve 20 corresponding to the stirring shaft 7 is provided on the inner top wall of the cover 9. After the cover 9 is fastened to the base 2, the upper end of the stirring shaft 7 is inserted into the shaft sleeve 20 to improve the rotation stability of the stirring shaft 7. Since the shaft sleeve 20 is transparent, the strength of its manufacturing material is reduced compared with materials such as steel. In order to prevent the cover 9 from prematurely wearing out and failing after long-term use, a mesh cover 19 is provided on the inner wall of the cover 9 below the shaft sleeve 20. A guide sleeve cooperating with the stirring shaft 7 is provided at the axis of the mesh cover 19. The upper end of the stirring shaft 7 passes through the guide sleeve and prevents large mineral materials from directly hitting the cover 9 through the mesh cover 19, thereby reducing the wear rate of the cover 9.

[0039] In Example 6, a control screen electrically connected to the first motor 4 and the second motor is provided on the base 1 for regulating the start and stop and the rotation speed of the first motor 4 and the second motor.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. Paint raw material grinding mechanism, characterized in that: The invention comprises a base (1), wherein a bottom bracket (2) is rotatably mounted on the base (1), an inner liner (6) is embedded in the bottom bracket (2), a cover (9) is placed on the upper end of the inner liner (6), and the cover (9) is connected to the bottom bracket (2) via a fastener; a stirring shaft (7) penetrating the bottom wall of the inner liner (6) is rotatably mounted on the bottom axis of the inner liner (6), crushing rollers are arranged at intervals on the stirring shaft (7), a plurality of grinding balls (21) are distributed in the inner liner (6), a through hole is arranged on the axis of the bottom wall of the bottom bracket (2), a first motor (4) is fixed on the lower end of the bottom bracket (2), a rectangular shaft (5) is fixed on the output shaft of the first motor (4), and a rectangular hole (8) cooperating with the rectangular shaft (5) is arranged at the bottom end of the stirring shaft (7); a reciprocating mechanism cooperating with the bottom bracket (2) is arranged on the base (1), and the bottom bracket (2) is driven to swing back and forth by the reciprocating mechanism.

2. The coating raw material grinding mechanism according to claim 1, characterized in that: A plurality of screw rods (10) are provided in a circular array around the upper end of the base (2), and circular holes corresponding to the screw rods (10) are provided around the upper end of the liner (6) and the lower end of the cover (9). Nuts (11) are threadedly mounted on the screw rods (10), and the nuts (11) are against the surface of the cover (9).

3. The coating raw material grinding mechanism according to claim 2, characterized in that: The length of the rectangular shaft (5) is greater than the length of the screw rod (10).

4. The coating material grinding mechanism according to claim 1, characterized in that: A sleeve (3) is threadedly mounted on the lower end of the base (2), and the first motor (4) is embedded in the sleeve (3).

5. The coating material grinding mechanism according to claim 4, characterized in that: The sleeve (3) has a plurality of hollow holes in an annular array around the side wall.

6. The coating material grinding mechanism according to claim 4, characterized in that: The reciprocating mechanism comprises a turntable (12) and a half gear (15) which are mounted on a base (1) in an alternating manner. The turntable (12) is driven by a second motor fixed on the base (1). An insertion rod (13) is provided at a non-coaxial position of the end surface of the turntable (12). A first slot frame (14) is provided at the upper end of the half gear (15). The insertion rod (13) is slidably mounted in the first slot frame (14). The half gear (15) is meshed with a rack (16) which is horizontally slidably mounted on the base (1). A second slot frame (17) is provided at the end of the rack (16) located below the sleeve (3). A U-shaped rod (18) which is inserted into the second slot frame (17) is provided at the bottom end of the sleeve (3).

7. The coating material grinding mechanism according to claim 1, characterized in that: A shaft sleeve (20) corresponding to the stirring shaft (7) is provided on the inner top wall of the sealing cover (9).

8. The coating material grinding mechanism according to claim 1, characterized in that: The inner wall of the sealing cover (9) is provided with a mesh cover (19), and the axis of the mesh cover (19) is provided with a guide sleeve that cooperates with the stirring shaft (7).

9. The coating material grinding mechanism according to claim 1, characterized in that: The cover (9) is transparent.

10. The coating material grinding mechanism according to claim 9, characterized in that: The base (1) is provided with a control screen which is electrically connected to both the first motor (4) and the second motor and is used to control the start and stop and the rotation speed of the first motor (4) and the second motor.

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