Pulverizer for producing thermosetting powder coating

Abstract

The utility model discloses a flour mill for producing thermosetting powder coating, and belongs to the technical field of flour mills. The pulverizer for producing the thermosetting powder coating comprises a grinding barrel and a filter plate fixedly mounted in the grinding barrel, and further comprises a rotating rod rotationally connected to the interior of the grinding barrel; the knocking assembly is used for treating meshes of the filter plate; wherein the knocking assembly comprises an extrusion part arranged in the grinding barrel; according to the flour mill for producing the thermosetting powder coating, a motor drives a rotating rod to rotate, and meanwhile, a driving part is driven to enable an extruding part to drive a knocking part to knock the bottom of a filter plate in a reciprocating manner, so that the filter plate slightly vibrates when filtering the thermosetting powder coating; and the thermosetting powder raw materials clamped in the meshes of the filter plate are vibrated to fall off, so that the filter plate can be prevented from being blocked when filtering the thermosetting powder, and the production efficiency of the thermosetting powder can be improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding mill technology, and in particular to a grinding mill for producing thermosetting powder coatings. Background Technology

[0002] Thermosetting powder coatings refer to coatings that use thermosetting resins as the main film-forming substances. When these coatings are cured, the film-forming substances in the coating film undergo cross-linking and other reactions to form a hard, insoluble, and infusible three-dimensional polymer network structure. The main types include amino alkyd coatings, thermosetting acrylic coatings, epoxy resin coatings, polyester coatings, and polyurethane coatings. Currently, most thermosetting powder coatings are produced by grinding with a grinding mill and are widely used in thermosetting powder coating manufacturing enterprises.

[0003] A search revealed Chinese patent publication number CN220803582U, which discloses a grinding mill for producing thermosetting powder coatings. The mill includes a base, and multiple telescopic rods fixedly installed on the top of the base, with a connecting sleeve fixedly installed at one end of each rod. A grinding drum is fixedly embedded in the inner wall of the connecting sleeve. This patent has the following shortcomings: Currently, most grinding mills use multiple grinding cycles to improve the grinding effect when grinding thermosetting powder raw materials. However, because thermosetting powder raw materials may vary in size, some of the ground powder may be squeezed into the mesh of the filter screen by the grinding rollers, making it difficult to fall out. Over time, this will clog the filter screen and affect the grinding efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that thermosetting powder raw materials are easily squeezed onto the filter screen and stuck in the mesh of the filter screen when they are squeezed and ground by the grinding roller, and to propose a grinding mill for producing thermosetting powder coatings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding mill for producing thermosetting powder coatings includes a grinding barrel and a filter plate fixedly installed inside the grinding barrel, and a rotating rod rotatably connected inside the grinding barrel; a striking assembly for processing the mesh of the filter plate; wherein the striking assembly includes an extruder disposed inside the grinding barrel, a driving member cooperating with the extruder is fixedly connected to the rotating rod, and a striking member that is linked to the extruder is disposed inside the grinding barrel.

[0007] Preferably, a feed hopper is fixedly installed on the top of the grinding barrel, a bottom support frame is fixedly installed on the bottom of the grinding barrel, and a discharge pipe is fixedly connected to the bottom of the grinding barrel.

[0008] Preferably, the driving component includes a motor fixedly mounted on the top of the grinding barrel, the output end of the motor being fixedly connected to a rotating rod, and three sets of cams being fixedly connected to the rotating rod.

[0009] Preferably, the striking element includes a fixed plate fixedly connected to the inner walls of both sides of the grinding barrel, a push rod slidably connected to the fixed plate, and a rubber hammer fixedly connected to the top of the push rod.

[0010] Preferably, a trapezoidal block is fixedly connected to the bottom of the push rod, a limit plate is fixedly connected to one side of the bottom of the trapezoidal block, and a first spring is sleeved on the push rod, with the two ends of the first spring abutting against the fixed plate and the trapezoidal block respectively.

[0011] Preferably, the extrusion member includes a strip plate fixedly connected to the bottom of the fixed plate, a slide rod slidably connected to the strip plate, an abutment block fixedly connected to the slide rod and abutting against the driving member, and a second spring sleeved on the slide rod, with the two ends of the second spring abutting against the abutment block and the strip plate respectively.

[0012] Preferably, the mesh size of the three sets of filter plates decreases sequentially. Two sets of U-shaped plates are fixedly connected to the rotating rod. Support rods are rotatably connected inside the two sets of U-shaped plates. Grinding rollers are fixedly connected to the support rods. Gears are fixedly connected to the support rods near the outside of the U-shaped plates. The top surface of the filter plate is provided with tooth grooves that mesh with the gears.

[0013] Preferably, a horizontal plate is fixedly connected to both sides of the bottom of the rotating rod, and a scraper is fixedly connected to the bottom of the horizontal plate. The scraper is slidably connected to the inner wall of the grinding barrel.

[0014] Compared with the prior art, this utility model provides a grinding mill for producing thermosetting powder coatings, which has the following beneficial effects:

[0015] 1. This grinding mill for producing thermosetting powder coatings uses a motor to drive a rotating rod, which in turn drives a drive component to extrude and a striking component to reciprocate and strike the bottom of a filter plate. This causes slight vibrations in the filter plate during the filtration of thermosetting powder coatings, dislodging the thermosetting powder material stuck in the filter plate mesh. This prevents the filter plate from clogging during the filtration of thermosetting powders and helps improve the production efficiency of thermosetting powders.

[0016] 2. This grinding mill for producing thermosetting powder coatings rotates by rotating a rotating rod, which in turn drives the horizontal plates on both sides to rotate. This, in turn, drives the scraper to rotate and scrape off the thermosetting powder raw materials adhering to the inner wall of the lower part of the grinding barrel, assisting in rapid material feeding. At the same time, it can reduce the amount of thermosetting powder adhering to the inner wall of the grinding barrel. Meanwhile, the rotation of the horizontal plates can also stir the thermosetting powder being fed outwards, preventing material blockage and improving the production speed of thermosetting powder. Attached Figure Description

[0017] Figure 1 This is a front structural diagram of a grinding mill for producing thermosetting powder coatings proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the grinding barrel in a grinding mill for producing thermosetting powder coatings according to this utility model.

[0019] Figure 3 This utility model proposes a grinding mill for producing thermosetting powder coatings. Figure 2 A schematic diagram of the structure of A in the middle;

[0020] Figure 4 This is a front view structural diagram of a grinding mill for producing thermosetting powder coatings proposed in this utility model;

[0021] Figure 5 This utility model proposes a grinding mill for producing thermosetting powder coatings. Figure 4 A schematic diagram of the structure of B in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of three sets of filter plates and grinding rollers in a grinding mill for producing thermosetting powder coatings according to the present invention.

[0023] Figure 7 This utility model proposes a grinding mill for producing thermosetting powder coatings. Figure 6 A schematic diagram of the structure of C.

[0024] In the diagram: 1. Grinding barrel; 2. Scraper; 3. Filter plate; 4. Rotating rod; 5. Striking assembly; 51. Extrusion component; 511. Strip plate; 512. Slide rod; 513. Abutting block; 514. Second spring; 52. Driving component; 521. Motor; 522. Cam; 53. Striking component; 531. Fixing plate; 532. Push rod; 533. Rubber hammer; 534. Trapezoidal block; 535. Limiting plate; 536. First spring; 6. Feed hopper; 7. Bottom support frame; 8. Discharge pipe; 9. U-shaped plate; 10. Support rod; 11. Grinding roller; 12. Gear; 13. Tooth groove; 14. Horizontal plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Reference Figures 1-7 A grinding mill for producing thermosetting powder coatings includes a grinding barrel 1 and a filter plate 3 fixedly installed inside the grinding barrel 1, and a rotating rod 4 rotatably connected inside the grinding barrel 1; and a striking assembly 5 for processing the mesh of the filter plate 3. The striking assembly 5 includes an extruder 51 disposed inside the grinding barrel 1, a driving member 52 fixedly connected to the rotating rod 4 and cooperating with the extruder 51, and a striking member 53 linked to the extruder 51 inside the grinding barrel 1. When grinding thermosetting powder raw materials, the thermosetting powder is squeezed and stuck in the mesh of the filter plate 3. At this time, as the rotating rod 4 rotates, it drives the driving member 52, causing the extruder 51 to drive the striking member 53 to reciprocate and strike the bottom of the filter plate 3. This causes the filter plate 3 to vibrate slightly when filtering thermosetting powder coatings, causing the thermosetting powder raw materials stuck in the mesh of the filter plate 3 to vibrate and fall off, thereby preventing the filter plate 3 from clogging when filtering thermosetting powder and helping to improve the production efficiency of thermosetting powder.

[0028] A feed hopper 6 is fixedly installed on the top of the grinding barrel 1, a bottom support frame 7 is fixedly installed on the bottom of the grinding barrel 1, and a discharge pipe 8 is fixedly connected to the bottom of the grinding barrel 1. The ground thermosetting powder can be discharged through the discharge pipe 8 at the bottom of the grinding barrel 1.

[0029] The driving component 52 includes a motor 521 fixedly installed on the top of the grinding barrel 1. The output end of the motor 521 is fixedly connected to the rotating rod 4. Three sets of cams 522 are fixedly connected on the rotating rod 4. By starting the motor 521, the rotating rod 4 can be rotated, which in turn drives the three sets of cams 522 to rotate simultaneously.

[0030] The striking component 53 includes a fixing plate 531 fixedly connected to the inner walls of both sides of the grinding barrel 1. A push rod 532 is slidably connected to the fixing plate 531. A rubber hammer 533 is fixedly connected to the top of the push rod 532. The fixing plate 531 can provide support and guidance for the push rod 532.

[0031] A trapezoidal block 534 is fixedly connected to the bottom of the push rod 532. A limiting plate 535 is fixedly connected to one side of the bottom of the trapezoidal block 534. A first spring 536 is sleeved on the push rod 532. The two ends of the first spring 536 abut against the fixed plate 531 and the trapezoidal block 534 respectively. Through the limiting plate 535, when the slide rod 512 slides along the inclined surface of the trapezoidal block 534, the limiting plate 535 can prevent the slide rod 512 from sliding too much and affecting the downward reset of the trapezoidal block 534.

[0032] The extrusion member 51 includes a strip plate 511 fixedly connected to the bottom of the fixed plate 531. A slide rod 512 is slidably connected to the strip plate 511. An abutment block 513 that abuts against the driving member 52 is fixedly connected to the slide rod 512. A second spring 514 is sleeved on the slide rod 512. The two ends of the second spring 514 abut against the abutment block 513 and the strip plate 511, respectively. When the protrusion of the cam 522 rotates to abut against the abutment block 513, the abutment block 513 will cause the slide rod 512 to slide on the strip plate 511, compressing the second spring 514. One end of the slide rod 512 abuts against the inclined surface of the trapezoidal block 534, causing the trapezoidal block 534 to drive the push rod 532 to slide upward, while simultaneously compressing the second spring 514. The first spring 536 is compressed, which in turn drives the rubber hammer 533 at the top to strike the bottom of the filter plate 3 once. Then, when the protrusion of the cam 522 no longer abuts against the abutting block 513, the abutting block 513 will automatically reset under the action of the second spring 514. At the same time, the rubber hammer 533 and the push rod 532 will automatically reset under the action of the first spring 536, so that the cam 522 can abut against the abutting block 513 again. This operation is repeated, so that the two sets of striking parts 53 inside the grinding barrel 1 can vibrate and strike the two sides of the bottom of the filter plate 3 in turn. This can prevent the filter plate 3 from clogging when filtering thermosetting powder and improve the production efficiency of thermosetting powder coatings.

[0033] The mesh size of the three filter plates 3 decreases sequentially. Two U-shaped plates 9 are fixedly connected to the rotating rod 4. Support rods 10 are rotatably connected inside the two U-shaped plates 9. Grinding rollers 11 are fixedly connected to the support rods 10. Gears 12 are fixedly connected to the support rods 10 near the outside of the U-shaped plates 9. The top surface of the filter plate 3 has a toothed groove 13 that meshes with the gears 12. When the motor 521 starts, it drives the rotating rod 4 to rotate, which in turn drives the U-shaped plates 9 to rotate. As the U-shaped plates 9 rotate, the grinding rollers 11 on their surface rotate. At the same time, when the gears 12 on the support rods 10 rotate with the U-shaped plates 9, they mesh with the toothed grooves 13 on the filter plate 3, causing the gears 12 to rotate, which in turn drives the support rods 10 to rotate, and then causes the grinding rollers 11 to rotate to grind the thermosetting powder raw materials on the filter plate 3.

[0034] A horizontal plate 14 is fixedly connected to the bottom two sides of the rotating rod 4. A scraper 2 is fixedly connected to the bottom of the horizontal plate 14. The scraper 2 is slidably connected to the inner wall of the grinding barrel 1. When the rotating rod 4 rotates, it will drive the horizontal plates 14 on both sides to rotate, which in turn drives the scraper 2 to rotate and scrape off the thermosetting powder raw material attached to the lower inner wall of the grinding barrel 1, assisting in rapid feeding. At the same time, it can reduce the thermosetting powder attached to the inner wall of the grinding barrel 1. Meanwhile, the rotation of the horizontal plate 14 can also stir the thermosetting powder being fed to the outside, which can prevent the feeding blockage and improve the production speed of thermosetting powder.

[0035] In this invention, when grinding thermosetting powder raw materials, the raw materials are poured into the feed hopper 6 on the grinding barrel 1. The motor 521 is started to drive the rotating rod 4 to rotate. At the same time, the rotating rod 4 drives the U-shaped plate 9 to rotate. The rotation of the U-shaped plate 9 drives the grinding roller 11 on its surface to rotate. Simultaneously, the gear 12 on the support rod 10 meshes with the tooth groove 13 on the filter plate 3 as the U-shaped plate 9 rotates, thereby causing the gear 12 to rotate, driving the support rod 10 to rotate, and thus causing the grinding roller 11 to rotate to grind the thermosetting powder raw materials on the filter plate 3. The powder from the initial grinding process falls through filter plate 3 onto the next filter plate 3 for further grinding, and so on. This process improves the grinding effect of thermosetting powder raw materials. Simultaneously, the rotating rod 4 drives the cam 522 to rotate. When the protrusion of the cam 522 rotates to contact the abutment block 513, the abutment block 513 causes the slide rod 512 to slide on the strip plate 511, compressing the second spring 514. One end of the slide rod 512 contacts the inclined surface of the trapezoidal block 534, causing the trapezoidal block 534 to slide upwards, pushing the push rod 532 and simultaneously compressing the first spring. 536, which in turn drives the top rubber hammer 533 to strike the bottom of the filter plate 3 once. Then, when the protrusion of the cam 522 no longer abuts against the abutting block 513, the abutting block 513 will automatically reset under the action of the second spring 514. At the same time, the rubber hammer 533 and the push rod 532 will automatically reset under the action of the first spring 536, so that the cam 522 can abut against the abutting block 513 again. This operation is repeated, so that the two sets of striking parts 53 inside the grinding barrel 1 can vibrate and strike the two sides of the bottom of the filter plate 3 in sequence, thereby... To prevent the filter plate 3 from clogging when filtering thermosetting powder and improve the production efficiency of thermosetting powder coatings, the rotating rod 4 rotates, which in turn drives the horizontal plates 14 on both sides to rotate, thereby driving the scraper 2 to rotate and scrape off the thermosetting powder raw material adhering to the lower inner wall of the grinding barrel 1, assisting the discharge pipe 8 to discharge the material quickly. At the same time, it can reduce the thermosetting powder adhering to the inner wall of the grinding barrel 1. Meanwhile, the rotation of the horizontal plate 14 can also stir the thermosetting powder being discharged to the outside, which can prevent the discharge blockage and improve the production speed of thermosetting powder.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A grinding mill for producing thermosetting powder coatings, comprising: The grinding barrel (1) and the filter plate (3) fixedly installed inside the grinding barrel (1) are characterized in that they further include: Rotate the rotating rod (4) connected inside the grinding barrel (1); A striking assembly (5) for processing the mesh of the filter plate (3); The striking component (5) includes an extruder (51) disposed inside the grinding barrel (1), a drive component (52) that cooperates with the extruder (51) is fixedly connected to the rotating rod (4), and a striking component (53) that is linked with the extruder (51) is disposed inside the grinding barrel (1).

2. The grinding mill for producing thermosetting powder coatings according to claim 1, characterized in that, A feed hopper (6) is fixedly installed on the top of the grinding barrel (1), a bottom support frame (7) is fixedly installed on the bottom of the grinding barrel (1), and a discharge pipe (8) is fixedly connected to the bottom of the grinding barrel (1).

3. A grinding mill for producing thermosetting powder coatings according to claim 1, characterized in that, The drive unit (52) includes a motor (521) fixedly installed on the top of the grinding barrel (1). The output end of the motor (521) is fixedly connected to the rotating rod (4). Three sets of cams (522) are fixedly connected on the rotating rod (4).

4. A grinding mill for producing thermosetting powder coatings according to claim 1, characterized in that, The striking component (53) includes a fixing plate (531) fixedly connected to the inner walls of both sides of the grinding barrel (1), a push rod (532) slidably connected to the fixing plate (531), and a rubber hammer (533) fixedly connected to the top of the push rod (532).

5. A grinding mill for producing thermosetting powder coatings according to claim 4, characterized in that, A trapezoidal block (534) is fixedly connected to the bottom of the push rod (532). A limit plate (535) is fixedly connected to one side of the bottom of the trapezoidal block (534). A first spring (536) is sleeved on the push rod (532). The two ends of the first spring (536) abut against the fixed plate (531) and the trapezoidal block (534) respectively.

6. A grinding mill for producing thermosetting powder coatings according to claim 4, characterized in that, The extrusion member (51) includes a strip plate (511) fixedly connected to the bottom of the fixed plate (531). A slide rod (512) is slidably connected to the strip plate (511). An abutment block (513) that abuts against the driving member (52) is fixedly connected to the slide rod (512). A second spring (514) is sleeved on the slide rod (512). The two ends of the second spring (514) abut against the abutment block (513) and the strip plate (511) respectively.

7. A grinding mill for producing thermosetting powder coatings according to claim 1, characterized in that, The mesh size of the three sets of filter plates (3) decreases sequentially. Two sets of U-shaped plates (9) are fixedly connected to the rotating rod (4). Support rods (10) are rotatably connected inside the two sets of U-shaped plates (9). Grinding rollers (11) are fixedly connected to the support rods (10). Gears (12) are fixedly connected to the support rods (10) near the outside of the U-shaped plates (9). The top surface of the filter plate (3) is provided with tooth grooves (13) that mesh with the gears (12).

8. A grinding mill for producing thermosetting powder coatings according to claim 1, characterized in that, A horizontal plate (14) is fixedly connected to the bottom two sides of the rotating rod (4), and a scraper (2) is fixedly connected to the bottom of the horizontal plate (14). The scraper (2) is slidably connected to the inner wall of the grinding barrel (1).

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