Powder coating grinding and screening mechanism

Abstract

The utility model discloses a powder coating grinding and screening mechanism in the technical field of powder coating production, which comprises a base, a grinding box is movably arranged on the upper side of the base, a grinding roller is fixedly arranged at the outer side end of a rotating shaft and positioned on the inner side of the grinding box, a screening plate is movably arranged on the inner side of the grinding box, and rotating rods are rotatably arranged on the inner sides of a group of fixed frames. The outer sides of the rotating rods are fixedly sleeved with protruding blocks, driving motors are fixedly arranged on the outer sides of the fixing frames, the power ends of the driving motors movably penetrate through the fixing frames to be fixedly connected to the rotating rods, connecting plates are fixedly arranged on the portions, located on the inner sides of the fixing frames, of the outer sides of the screening plates, and springback mechanisms in butt joint with the connecting plates are arranged on the inner sides of the other fixing frames. According to the powder coating grinding and screening device, coating raw materials can be conveniently ground and screened at the same time through a simple installation structure, the whole operation is completed at a time, the defect that two-step operation is needed in the prior art is overcome, therefore, the production efficiency of powder coatings is effectively improved, the practical effect is good, and the powder coating grinding and screening device is worthy of being used and popularized in the existing market.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating production, in particular to a powder coating grinding and screening mechanism. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives. Unlike ordinary solvent-based coatings and water-based coatings, its dispersion medium is air instead of solvent and water. It has the characteristics of no solvent pollution, 100% film formation, harmlessness, high efficiency, resource saving, environmental protection and low energy consumption. Powder coating has two categories: thermoplastic and thermosetting. Powder coating needs to be ground into powder with appropriate particle size by a grinder during production and preparation.

[0003] When grinding paint raw materials, the existing grinding machines generally grind the paint raw materials through a grinding mechanism first, and then screen the powder. The whole process is divided into two steps. The operation is not convenient enough, which will affect the production efficiency of powder coatings. At the same time, during long-term use, the powder coatings are easy to block the holes on the filter plate, which will lead to poor screening effect of powder coatings and affect the screening efficiency of powder coatings. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a powder coating grinding and screening mechanism to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, a powder coating grinding and screening mechanism comprises a base, a grinding box is movably arranged on the upper side of the base, an L-shaped block is fixedly arranged on the outer side of the grinding box, multiple groups of rotating shafts are rotatably arranged on the inner side of the L-shaped block, the multiple groups of rotating shafts all movably penetrate the grinding box and extend to the inner side, and the outer ends of the rotating shafts are located at the inner part of the grinding box and are fixedly arranged with grinding rollers, a sieve plate is movably arranged on the inner side of the grinding box, multiple groups of holes are penetrated through the upper and lower parts of the sieve plate, and fixed frames are fixedly arranged on both sides of the grinding box, a rotating rod is rotatably arranged on the inner side of one group of the fixed frames, a protrusion is fixedly provided on the outer side of the rotating rod, and a driving motor is fixedly arranged on the outer side of the fixed frame, the power end of the driving motor movably penetrates the fixed frame and is fixedly connected to the rotating rod, both sides of the sieve plate movably penetrate the two groups of fixed frames and extend to the inner side, and a connecting plate is fixedly arranged on the outer side of the sieve plate located at the inner part of the fixed frame, and a rebound mechanism for docking the connecting plate is arranged on the inner side of the other group of the fixed frames.

[0006] Preferably, the rebound mechanism includes multiple groups of mounting tubes fixedly arranged on the inner side of the fixed frame, and connecting rods are movably inserted into the inner sides of the multiple groups of mounting tubes. The connecting rods movably penetrate the mounting tubes and extend to the outside, and the outer end of the connecting rod is located at the outer part of the mounting tube and is fixedly connected to the connecting plate. A first spring is arranged on the inner side of the mounting tube, one end of the first spring is connected to the inner side of the mounting tube, and the other end of the first spring is connected to the connecting rod.

[0007] Preferably, a vibration motor is arranged outside the grinding box.

[0008] Preferably, multiple groups of fixed tubes are fixedly arranged on the upper side of the base, and movable rods are movably inserted into the inner sides of the multiple groups of fixed tubes. The movable rods movably penetrate the fixed tubes and extend to the outside, and the outer ends of the movable rods are located on the outer part of the fixed tubes and fixedly connected to the fixed frame.

[0009] Preferably, a second spring is disposed inside the fixed cylinder, one end of the second spring is connected to the inside of the fixed cylinder, and the other end of the second spring is connected to the movable rod.

[0010] Preferably, two groups of mounting grooves are respectively provided on the upper and lower sides of the screen plate inside the grinding box, and rollers are rotatably arranged inside the four groups of mounting grooves.

[0011] Preferably, a feed hopper is fixedly provided on the upper side of the grinding box, and a lower hopper is fixedly provided on the lower side of the grinding box.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model provides mechanisms such as a sieve plate, a grinding roller, a rotating rod, a convex block, a driving motor, a connecting plate, a mounting cylinder, a connecting rod, a first spring, etc., and through the cooperation of various mechanisms, it is possible to grind and screen the coating raw materials at the same time, and the overall operation is completed in one go, avoiding the disadvantage of the traditional two-step operation, thereby effectively improving the production efficiency of powder coatings, and by providing mechanisms such as a vibration motor, a fixed cylinder, a movable rod, a second spring, etc., and through the cooperation of various mechanisms, it is possible to conveniently drive the grinding box to vibrate as a whole, thereby further improving the discharge smoothness of the powder coating, avoiding blockage, and ensuring the continuous and normal use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the oblique structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the side section structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the screen plate structure of the utility model;

[0018] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] The accompanying drawings are marked as follows:

[0020] 1 base, 2 grinding box, 3 sieve plate, 4 eyelet, 5 L-shaped block, 6 rotating shaft, 7 grinding roller, 8 fixed frame, 9 rotating rod, 10 protrusion, 11 driving motor, 12 connecting plate, 13 mounting cylinder, 14 connecting rod, 15 first spring, 16 vibration motor, 17 fixing cylinder, 18 movable rod, 19 second spring, 20 mounting groove, 21 roller, 22 feed hopper, 23 lower hopper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-5 A powder coating grinding and screening mechanism comprises a base 1, a grinding box 2 is movably arranged on the upper side of the base 1, an L-shaped block 5 is fixedly arranged on the outer side of the grinding box 2, a plurality of sets of rotating shafts 6 are rotatably arranged on the inner side of the L-shaped block 5, the plurality of sets of rotating shafts 6 all movably penetrate the grinding box 2 and extend to the inner side, and a grinding roller 7 is fixedly arranged on the outer end of the rotating shaft 6 located on the inner side of the grinding box 2, a sieve plate 3 is movably arranged on the inner side of the grinding box 2, a plurality of sets of holes 4 are arranged through the sieve plate 3 from top to bottom, and a fixed frame 8 is fixedly arranged on both sides of the grinding box 2, a rotating rod 9 is rotatably arranged on the inner side of a set of the fixed frames 8, a convex block 10 is fixedly provided on the outer side of the rotating rod 9, and a driving motor 11 is fixedly arranged on the outer side of the fixed frame 8, and a power end of the driving motor 11 is movably penetrated The fixed frame 8 is fixedly connected to the rotating rod 9, and the two sides of the sieve plate 3 are movable through the two groups of fixed frames 8 and extend to the inside, and the outer side of the sieve plate 3 is located on the inner side of the fixed frame 8 and is fixedly provided with a connecting plate 12, and the inner side of the other group of fixed frames 8 is provided with a rebound mechanism for docking the connecting plate 12. Multiple groups of grinding rollers 7 are in contact with the upper side of the sieve plate 3, so that when the drive motor 11 is turned on to drive the sieve plate 3 to move back and forth, the multiple groups of grinding rollers 7 can be driven to rotate, and the grinding rollers 7 can continuously grind the coating raw materials when rotating, and the raw materials that meet the size leak out through the holes 4 on the sieve plate 3, so that the powder coating can be ground and screened at the same time, which greatly improves the production efficiency of the powder coating and reduces the production cost.

[0023] Among them, the rebound mechanism includes a plurality of mounting tubes 13 fixedly arranged on the inner side of the fixed frame 8, and a connecting rod 14 is movably inserted into the inner side of the plurality of mounting tubes 13. The connecting rod 14 movably penetrates the mounting tube 13 and extends to the outside, and the outer end of the connecting rod 14 is located at the outer part of the mounting tube 13 and is fixedly connected to the connecting plate 12. A first spring 15 is arranged on the inner side of the mounting tube 13, and one end of the first spring 15 is connected to the inner side of the mounting tube 13, and the other end of the first spring 15 is connected to the connecting rod 14. The first spring 15 is initially in an elastic shape, and the connecting plate 12 can be pushed back by the elastic force of the first spring 15, and the screen plate 3 can be conveniently driven to move back and forth by rotating with the protrusion 10.

[0024] A vibration motor 16 is disposed outside the powder grinding box 2. The vibration motor 16 is turned on by an external power source to vibrate the entire powder grinding box 2, thereby accelerating the discharge of the powder coating.

[0025] Among them, multiple groups of fixed cylinders 17 are fixedly arranged on the upper side of the base 1, and movable rods 18 are movably inserted into the inner sides of the multiple groups of fixed cylinders 17. The movable rods 18 movably penetrate the fixed cylinders 17 and extend to the outside, and the outer ends of the movable rods 18 are located at the outer part of the fixed cylinders 17 and are fixedly connected to the fixed frame 8. When the grinding box 2 vibrates, it can drive the movable rods 18 to slide in the fixed cylinders 17, thereby ensuring the overall stability of the grinding box 2.

[0026] Among them, a second spring 19 is arranged inside the fixed cylinder 17, one end of the second spring 19 is connected to the inside of the fixed cylinder 17, and the other end of the second spring 19 is connected to the movable rod 18. The second spring 19 is initially in an elastic state, and the movable rod 18 and the grinding box 2 can be supported by the second spring 19.

[0027] Among them, two groups of mounting grooves 20 are respectively opened on the upper and lower sides of the sieve plate 3 on the inner side of the grinding box 2, and rollers 21 are rotatably arranged on the inner sides of the four groups of mounting grooves 20. When the sieve plate 3 moves back and forth, it can drive the rollers 21 to rotate in the mounting grooves 20, thereby reducing the resistance of the sieve plate 3 when moving, making the sieve plate 3 move more smoothly.

[0028] Among them, a feed hopper 22 is fixedly provided on the upper side of the grinding box 2, and a lower hopper 23 is fixedly provided on the lower side of the grinding box 2. By providing the feed hopper 22 and the lower hopper 23, the entry of raw materials and the discharge of powder coatings can be facilitated, thereby improving the convenience of use.

[0029] Embodiment: During use of the utility model, the raw material is first added to the inner side of the grinding box 2 through the feed hopper 22, and then the drive motor 11 is turned on by an external power supply to drive the rotating rod 9 to rotate, and the rotation of the rotating rod 9 drives the protrusion 10 to rotate, and when the protrusion 10 rotates, it squeezes a group of connecting plates 12, and the connecting plate 12 drives the screen plate 3 to move to the other side of the grinding box 2, and then another group of connecting plates 12 drives the connecting rod 14 to squeeze the first spring 15 inside the mounting cylinder 13, with the continuous rotation of the protrusion 10 and the rebound reset of the first spring 15, the screen plate 3 can be driven to move back and forth in the grinding box 2, and when the screen plate 3 moves, it drives multiple groups of grinding rollers 7 to rotate, and when the grinding rollers 7 rotate, the raw materials can be ground, and the ground raw materials fall to the inner side of the lower hopper 23 through the holes on the screen plate 3, and finally discharged through the lower hopper 23.

[0030] Finally, a few points should be explained: First, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may change; secondly: in the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; finally: the above is only the preferred embodiment of the present invention, and is not used to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powder coating grinding and screening mechanism, comprising a base (1), characterized in that: A grinding box (2) is movably arranged on the upper side of the base (1), an L-shaped block (5) is fixedly arranged on the outer side of the grinding box (2), a plurality of groups of rotating shafts (6) are rotatably arranged on the inner side of the L-shaped block (5), the plurality of groups of rotating shafts (6) all movably penetrate the grinding box (2) and extend to the inner side, and a grinding roller (7) is fixedly arranged on the outer end of the rotating shaft (6) located on the inner side of the grinding box (2), a sieve plate (3) is movably arranged on the inner side of the grinding box (2), a plurality of groups of holes (4) are penetrated through the sieve plate (3) from top to bottom, and a fixing frame (8) is fixedly arranged on both sides of the grinding box (2), a rotating rod (9) is rotatably arranged on the inner side of one group of the fixing frames (8), a convex block (10) is fixedly sleeved on the outer side of the rotating rod (9), and a driving motor (11) is fixedly arranged on the outer side of the fixing frame (8), a power end of the driving motor (11) movably penetrates the fixing frame (8) and is fixedly connected to the rotating rod (9), and the sieve plate (3) The two sides movably penetrate the two groups of fixed frames (8) and extend to the inside, and the outer side of the screen plate (3) is located on the inner side of the fixed frame (8) and is fixedly provided with a connecting plate (12), and the inner side of the other group of the fixed frames (8) is provided with a rebound mechanism that docks with the connecting plate (12), and the outer side of the grinding box (2) is provided with a vibration motor (16), and the upper side of the base (1) is fixedly provided with multiple groups of fixed cylinders (17), and the inner sides of the multiple groups of the fixed cylinders (17) are all movably plugged with movable rods (18), and the movable rods (18) movably penetrate the fixed cylinders (17) and extend to the outside, and the outer end of the movable rod (18) is located on the outer side of the fixed cylinder (17) and is fixedly connected to the fixed frame (8), and the inner side of the fixed cylinder (17) is provided with a second spring (19), one end of the second spring (19) is connected to the inner side of the fixed cylinder (17), and the other end of the second spring (19) is connected to the movable rod (18).

2. A powder coating grinding and screening mechanism according to claim 1, characterized in that: The rebound mechanism comprises a plurality of groups of mounting tubes (13) fixedly arranged on the inner side of the fixing frame (8), the inner sides of the plurality of groups of mounting tubes (13) are all movably connected with connecting rods (14), the connecting rods (14) movably penetrate the mounting tubes (13) and extend to the outside, and the outer end of the connecting rod (14) is located on the outer side of the mounting tube (13) and is fixedly connected to the connecting plate (12), the inner side of the mounting tube (13) is provided with a first spring (15), one end of the first spring (15) is connected to the inner side of the mounting tube (13), and the other end of the first spring (15) is connected to the connecting rod (14).

3. A powder coating grinding and screening mechanism according to claim 1, characterized in that: Two groups of mounting grooves (20) are respectively provided on the inner side of the grinding box (2) and the upper and lower sides of the screen plate (3), and rollers (21) are rotatably provided inside the four groups of mounting grooves (20).

4. A powder coating grinding and screening mechanism according to claim 1, characterized in that: A feed hopper (22) is fixedly arranged on the upper side of the grinding box (2), and a lower hopper (23) is fixedly arranged on the lower side of the grinding box (2).

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