Automatic coarse grinding device for powder coating

Abstract

The utility model discloses a kind of powder coating automation premixing coarse grinding devices, it is related to paint production equipment technical field, including grinding cylinder, the top end of the grinding cylinder is equipped with end cap, the inside wall bottom end of the grinding cylinder is equipped with bevel.The utility model is by being equipped with bevel, grinding roller, stirring blade, distribution block and pusher plate, when device is carried out paint grinding, multiple raw materials can be put into the inside of grinding cylinder, and grinding roller can be thrown out outward under the action of centrifugal force and be combined with bevel, at this time, grinding roller and bevel can realize the grinding of raw material, at the same time, stirring blade can mix multiple raw materials and throw towards bevel upper side, multiple raw materials are fully mixed in the process of throwing, to improve the mixing effect of device, at the same time, distribution block can push the raw material of device lower end outward by pusher plate, so that mixed raw material falls on bevel, to improve the grinding effect of raw material.

Description

Technical Field

[0001] This utility model relates to the field of coating production equipment technology, and in particular to an automated premixing and coarse grinding device for powder coatings. Background Technology

[0002] Powder coating is a new type of solvent-free solid powder coating. Compared with liquid coating, it has fewer raw material components and no solvent evaporation, which makes it solvent-free, pollution-free, and has high mechanical strength of coating film. It is widely used in various industries such as home appliances. In the production process of powder coating, it is necessary to first mix raw materials of different components and different fineness. The mixing effect is crucial to the subsequent processing technology.

[0003] In the prior art, such as the powder coating premixing and coarse grinding device with announcement number CN216538718U, the problem of current premixing devices being unable to grind powder, resulting in different particle sizes in the powder coating and affecting the quality of the final product, is solved. The device includes a housing with a feeding port on one side of the top, a support column in the middle of the bottom, and support columns spaced evenly at the bottom. An electric push rod is located above the housing, with its output end connected to a connecting shaft. A grinding seat is located at the bottom of the connecting shaft inside the housing. The housing also contains a grinding and mixing mechanism. Through the design of this grinding and mixing mechanism, the powder coating is ground during mixing, thereby improving the mixing uniformity of the powder coating and the quality of the final product.

[0004] The above technical solution has some problems in practical application. During the grinding process, the coating tends to accumulate at the bottom of the device, affecting the mixing and grinding effect. In addition, the grinding structure of the above technical solution is relatively simple, resulting in poor grinding effect.

[0005] Therefore, it is necessary to invent an automated premixing and coarse grinding device for powder coatings to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an automated premixing and coarse grinding device for powder coatings to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automated premixing and coarse grinding device for powder coatings, comprising a grinding cylinder, an end cap at the top of the grinding cylinder, an inclined surface at the bottom of the inner wall of the grinding cylinder, a rotating shaft rotatably mounted on the lower surface of the end cap via a bearing, a plurality of insert tubes surrounding the middle of the outer wall of the rotating shaft, insert rods inserted into the interior of each of the plurality of insert tubes, a support frame fixedly mounted on one end of each of the plurality of insert rods, and a support rod fixedly mounted on one end of each support frame, and the support rod is configured to be connected to... The inclined structure is adapted to the inclined surface. Multiple grinding rollers are arranged sequentially from bottom to top on the outer side of the support rod. Multiple stirring blades are fixedly arranged around the bottom of the outer wall of the rotating shaft, and all stirring blades are inclined upwards. A material distribution block is fixedly arranged at the bottom of the rotating shaft, and the material distribution block is conical. Multiple push plates are arranged around the outer wall of the material distribution block, and multiple shovel plates are arranged around the bottom of the outer wall of the material distribution block, and all shovel plates are inclined. The multiple shovel plates and the multiple push plates are arranged alternately.

[0008] Preferably, the outer bottom end of the material distribution block is provided with a connecting plate with an annular structure, and one end of each of the multiple material scraping plates is fixedly connected to the inner wall of the connecting plate.

[0009] Preferably, a reinforcing rod is fixedly provided on the lower surface of the support frame, and the reinforcing rod is designed as an inclined structure.

[0010] Preferably, a drive motor is fixedly provided in the middle of the upper surface of the end cap, and the output shaft of the drive motor is connected to the top end of the rotating shaft.

[0011] Preferably, a feed hopper is fixedly provided on the upper surface of the end cap, and the bottom end of the feed hopper is connected to the lower surface of the end cap.

[0012] Preferably, the outer side wall of the end cap is provided with a plurality of positioning grooves, the top of the outer side wall of the grinding cylinder is provided with a plurality of fixing seats, the upper surface of the plurality of fixing seats is provided with positioning screws through pins, the plurality of positioning screws are respectively provided in the plurality of positioning grooves, and the top of the plurality of positioning screws is provided with positioning seats through threads.

[0013] Preferably, the grinding cylinder is provided with a frame on the outside, and the top ends of the inner walls on both sides of the frame are connected to the outer wall of the grinding cylinder by pins.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model, by setting up an inclined plane, grinding roller, stirring blade, material distribution block, and pusher plate, allows multiple raw materials to be fed into the grinding cylinder during coating grinding. The grinding roller can be thrown outward under centrifugal force and come into contact with the inclined plane. At this time, the grinding roller and the inclined plane can grind the raw materials. Meanwhile, the stirring blade can mix the multiple raw materials and throw them upward at an angle. The multiple raw materials are fully mixed during the throwing process to improve the mixing effect of the device. At the same time, the material distribution block can push the raw materials at the bottom of the device outward through the pusher plate, so that the mixed raw materials fall on the inclined plane, thereby improving the grinding effect of the raw materials. Compared with the prior art, this technical solution improves the mixing effect of multiple raw materials and effectively improves the grinding effect of the device.

[0016] 2. By setting up a shovel plate, the device rotates with the material distribution block during the grinding process and shovels up the raw material accumulated at the bottom of the grinding cylinder. After being shoveled up, the raw material falls between multiple pusher plates and is then pushed outward. Compared with the prior art, the shovel plate in this technical solution can effectively solve the problem of raw material accumulation, thereby further improving the grinding effect of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the end cap and rotating shaft structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the rotating shaft structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the grinding roller structure of this utility model.

[0023] In the diagram: 1. Grinding cylinder; 2. End cap; 3. Inclined surface; 4. Rotating shaft; 5. Insert tube; 6. Insert rod; 7. Support frame; 8. Support rod; 9. Grinding roller; 10. Stirring blade; 11. Material distribution block; 12. Push plate; 13. Shovel plate; 14. Connecting plate; 15. Reinforcing rod; 16. Drive motor; 17. Feed hopper; 18. Positioning groove; 19. Fixed seat; 20. Positioning screw; 21. Positioning seat; 22. Frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-6 The powder coating automated premixing coarse grinding device shown includes a grinding cylinder 1, an end cap 2 at the top of the grinding cylinder 1, an inclined surface 3 at the bottom of the inner side wall of the grinding cylinder 1, a rotating shaft 4 rotatably mounted on the lower surface of the end cap 2 via a bearing, a plurality of insert tubes 5 surrounding the middle of the outer side wall of the rotating shaft 4, insert rods 6 inserted into the interior of each of the plurality of insert tubes 5, a support frame 7 fixedly mounted on one end of each of the plurality of insert rods 6, a support rod 8 fixedly mounted on one end of the support frame 7, and the support rod 8 is designed as an inclined structure adapted to the inclined surface 3, a plurality of grinding rollers 9 are arranged sequentially from bottom to top on the outer side of the support rod 8, and the grinding rollers 9 cooperate with the inclined surface 3 to achieve grinding of raw materials;

[0026] Multiple stirring blades 10 are fixedly arranged around the bottom of the outer wall of the rotating shaft 4, and all the stirring blades 10 are inclined upwards. A material distribution block 11 is fixedly arranged at the bottom of the rotating shaft 4, and the material distribution block 11 is conical. Multiple pusher plates 12 are arranged around the outer wall of the material distribution block 11, and multiple shovel plates 13 are arranged around the bottom of the outer wall of the material distribution block 11, and all the shovel plates 13 are inclined. The multiple shovel plates 13 are staggered with the multiple pusher plates 12.

[0027] The bottom outer side of the material distribution block 11 is provided with a ring-shaped connecting plate 14. One end of each of the multiple scraper plates 13 is fixedly connected to the inner wall of the connecting plate 14. The connecting plate 14 is used to improve the structural strength of the scraper plates 13.

[0028] A reinforcing rod 15 is fixedly provided on the lower surface of the support frame 7, and the reinforcing rod 15 is set as an inclined structure. The reinforcing rod 15 is used to improve the structural strength of the support frame 7.

[0029] A drive motor 16 is fixedly installed in the middle of the upper surface of the end cover 2, and the output shaft of the drive motor 16 is connected to the top of the rotating shaft 4. A feed hopper 17 is fixedly installed on the upper surface of the end cover 2, and the bottom end of the feed hopper 17 is connected to the lower surface of the end cover 2. The feed hopper 17 is used for feeding and discharging materials.

[0030] The outer side wall of the end cover 2 is provided with multiple positioning grooves 18, and the top of the outer side wall of the grinding cylinder 1 is provided with multiple fixing seats 19. The upper surface of each fixing seat 19 is provided with a positioning screw 20 through a pin. The multiple positioning screws 20 are respectively located in the multiple positioning grooves 18, and the top of each positioning screw 20 is provided with a positioning seat 21 through a thread. The positioning screws 20 and the positioning seats 21 cooperate to fix the end cover 2.

[0031] A frame 22 is provided on the outside of the grinding cylinder 1, and the top of the inner walls on both sides of the frame 22 are connected to the outer wall of the grinding cylinder 1 by pins. The frame 22 is used to support the grinding cylinder 1, and the grinding cylinder 1 can be flipped when feeding.

[0032] Working principle of this utility model:

[0033] In use, the end cap 2 and the grinding cylinder 1 form a grinding space for the coating. The coating material to be ground is fed into the grinding cylinder 1 through the feed hopper 17. At this time, the drive motor 16 is started, which drives the rotating shaft 4 to rotate. The rotating shaft 4 drives multiple insertion tubes 5 to rotate, and the multiple insertion tubes 5 drive multiple insertion rods 6 and support frames 7 to rotate respectively. At this time, the multiple support frames 7 and grinding rollers 9 are thrown outward under the action of centrifugal force, so that the multiple grinding rollers 9 are in contact with the inclined surface 3 of the inner wall of the grinding cylinder 1. At the same time, the grinding rollers 9 follow the rotating shaft 4 to rotate, crushing and grinding the material on the surface of the inclined surface 3. During this process, the rotating shaft 4 drives the stirring blade 10 and the material distribution block 11 to rotate. The stirring blade 10 scoops up the raw material at the bottom of the grinding cylinder 1, so that the raw material is thrown upward. Multiple raw materials are fully mixed during the process of being thrown upward and falling. At the same time, after being thrown up, the raw material is subjected to centrifugal force and moves towards the inner wall of the grinding cylinder 1, and then falls on the inclined surface 3 and is ground by the grinding roller 9. Meanwhile, the material distribution block 11 can drive the pusher plate 12 to rotate. The pusher plate 12 can push the raw material at the bottom of the grinding cylinder 1, so that the raw material is thrown outward onto the inclined surface 3, thereby realizing the mixing and grinding of raw materials.

[0034] During the grinding process, the material distribution block 11 drives multiple shovel plates 13 to rotate. The multiple shovel plates 13 shovel the raw material accumulated at the bottom of the grinding cylinder 1 upwards. After being shoveled, the raw material enters between multiple push plates 12 and is then thrown out onto the inclined surface 3 for grinding, so as to avoid the accumulation of raw material affecting the grinding effect.

[0035] It should be noted that this embodiment is only applicable to the grinding of powder coatings. The drive motor 16 in this embodiment adopts the corresponding structure in the prior art and is equipped with a power supply and controller. Furthermore, a sliding sealing gasket or other sealing structure is provided between the grinding roller 9 and the support rod 8 in this embodiment to prevent raw materials from entering between the support rod 8 and the grinding roller 9 and affecting the rotation of the grinding roller 9. Accordingly, the device needs to be regularly maintained during long-term use to ensure the smooth rotation of the grinding roller 9. The above means are common in the art and will not be described in detail here.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automated premixing and coarse grinding device for powder coatings, comprising a grinding cylinder (1), characterized in that: The grinding cylinder (1) has an end cap (2) at its top and a slope (3) at the bottom of its inner wall. A rotating shaft (4) is rotatably mounted on the lower surface of the end cap (2) via a bearing. Multiple insertion tubes (5) are arranged around the middle of the outer wall of the rotating shaft (4). Insert rods (6) are inserted into the interior of each insertion tube (5). A support frame (7) is fixed to one end of each insertion rod (6). A support rod (8) is fixed to one end of the support frame (7). The support rod (8) is designed as an inclined structure adapted to the slope (3). The outer side of the support rod (8) is arranged from bottom to top. Multiple grinding rollers (9) are arranged in sequence. Multiple stirring blades (10) are fixedly arranged around the bottom of the outer wall of the rotating shaft (4). The multiple stirring blades (10) are all inclined upwards. A material distribution block (11) is fixedly arranged at the bottom of the rotating shaft (4). The material distribution block (11) is conical. Multiple pusher plates (12) are arranged around the outer wall of the material distribution block (11). Multiple shovel plates (13) are arranged around the bottom of the outer wall of the material distribution block (11). The multiple shovel plates (13) are all inclined. The multiple shovel plates (13) are arranged alternately with the multiple pusher plates (12).

2. The automated premixing and coarse grinding device for powder coatings according to claim 1, characterized in that: The outer bottom of the material distribution block (11) is provided with a ring-shaped connecting plate (14), and one end of each of the multiple material scraping plates (13) is fixedly connected to the inner wall of the connecting plate (14).

3. The automated premixing and coarse grinding device for powder coatings according to claim 1, characterized in that: The lower surface of the support frame (7) is fixedly provided with a reinforcing rod (15), and the reinforcing rod (15) is designed as an inclined structure.

4. The automated premixing and coarse grinding device for powder coatings according to claim 1, characterized in that: A drive motor (16) is fixedly provided in the middle of the upper surface of the end cap (2), and the output shaft of the drive motor (16) is connected to the top end of the rotating shaft (4).

5. The automated premixing and coarse grinding device for powder coatings according to claim 1, characterized in that: The upper surface of the end cap (2) is fixedly provided with a feed hopper (17), and the bottom end of the feed hopper (17) is connected to the lower surface of the end cap (2).

6. The automated premixing and coarse grinding device for powder coatings according to claim 1, characterized in that: The outer wall of the end cap (2) is provided with a plurality of positioning grooves (18), and the top of the outer wall of the grinding cylinder (1) is provided with a plurality of fixing seats (19). The upper surface of the plurality of fixing seats (19) is provided with positioning screws (20) through pins. The plurality of positioning screws (20) are respectively provided in the plurality of positioning grooves (18), and the top of the plurality of positioning screws (20) is provided with positioning seats (21) through threads.

7. The automated premixing and coarse grinding device for powder coatings according to claim 1, characterized in that: The grinding cylinder (1) is provided with a frame (22) on the outside, and the top of the inner walls on both sides of the frame (22) are connected to the outer wall of the grinding cylinder (1) by pins.

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