Tabletting device for producing powder coating

Abstract

The utility model relates to a tabletting device for producing powder coating, which belongs to the technical field of coating production and comprises a base and a feed hopper fixed at the top of the base, a rolling component is arranged in the feed hopper, a conveying component is arranged in the base, and a tabletting component is arranged at the top of the base on the side surface of the feed hopper. The rolling assembly comprises a power base fixed in the feeding hopper, and two driving motors are fixed to the inner top wall of the power base. According to the tabletting device for producing the powder coating, the driving motor in the power seat drives the rolling wheels on the two sides to rotate clockwise, the worm drives the two rolling wheels in the middle to rotate anticlockwise, materials placed in the feeding hopper are rolled, large-particle impurities in the materials are pulverized, and therefore the powder coating is produced. And meanwhile, the cleaning scraping plate continuously cleans the materials remaining on the surface of the rolling wheel, the materials are prevented from remaining on the surface of the rolling wheel, and therefore the problem that large-particle impurities exist in the materials, and consequently the plasticity of tablets in the later period is caused is solved.

Description

Technical Field

[0001] This utility model relates to the field of coating production technology, specifically to a tablet pressing device for producing powder coatings. Background Technology

[0002] Powder coatings are solid powdered synthetic resin coatings composed of solid resins, pigments, fillers, and additives. They are characterized by solvent-free production, 100% film formation, and low energy consumption. In the powder coating production process, a tableting device is used to extrude the molten material into sheets for subsequent crushing, grinding, and sieving.

[0003] Chinese Patent No. CN220332091 U discloses a tableting device for producing powder coatings, including a frame, a vertical frame and a housing respectively installed on the top of the frame, a conveyor belt mechanism arranged inside the vertical frame, one end of the conveyor belt mechanism being placed at the discharge end of the housing, a pressing component arranged on the top of the conveyor belt mechanism, the pressing component being installed on the top of the vertical frame, and a screen cylinder installed at the feed inlet of the housing.

[0004] This utility model installs a screen cylinder between the hopper and the feed inlet of the machine body, with the screen mesh inserted inside the screen cylinder. When the hopper discharges material, the powder coating enters the screen cylinder and falls onto the screen mesh. The screen mesh then filters out impurities in the powder coating, ensuring that they are separated from the powder coating and preventing them from mixing into the powder coating during tablet forming, thus affecting the tablet shaping.

[0005] However, the device does not provide a solution for impurity particles. These particles are very easy to accumulate during the screening process. Under the push of the scraper, they can easily clog the screen holes, reduce the feeding speed of powder coating, and reduce the working efficiency. Moreover, large impurities are easily turned into small particles and pass through the screen under the push of the scraper, which can still affect the plasticity of the sheet. Therefore, a tableting device for producing powder coating is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a tableting device for producing powder coatings, which has the advantages of high operating efficiency and is not prone to clogging. It solves the problem that the tableting quality is affected by the failure to promptly handle large powder impurities during the powder coating feeding process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a tableting device for producing powder coatings, comprising a base and a feeding hopper fixed on the top of the base, wherein a crushing assembly is provided inside the feeding hopper, a conveying assembly is provided inside the base, and a tableting assembly is provided on the top of the base on the side of the feeding hopper;

[0008] The crushing assembly includes a power base fixed inside the feed hopper. Two drive motors are fixed to the inner top wall of the power module. Four drive rods are rotatably connected inside the power base. A bevel gear is fixed to the outer side of each drive rod. Two limiting plates are fixed to the inner bottom wall of the power base. A worm gear is rotatably connected inside each of the two limiting plates. Crushing wheels are fixed to both ends of the drive rods located outside the power base. Three cleaning scrapers that cooperate with the crushing wheels are fixed to both sides of the power base.

[0009] Furthermore, the material conveying assembly includes two drive wheels rotatably connected to the inner sidewall of the base, the outer sides of the two drive wheels are covered with a conveyor belt, the inner top wall of the base is fixed with a guide plate for guiding the material, and the bottom inner sidewall of the base is fixed with a support seat.

[0010] Furthermore, the tablet pressing assembly includes a fixing frame fixed to the top right wall of the base, a hydraulic telescopic rod fixed to the bottom of the fixing frame, a pressing plate fixed to the bottom end of the hydraulic telescopic rod, a limit frame fixed to the inner bottom wall of the fixing frame, and a plurality of push rods for use with the pressing plate fixed to the bottom of the limit frame.

[0011] Furthermore, the top of the power seat has a conical structure and a partition is fixed inside. The output shafts of the two drive motors vertically penetrate the partition, and the two output shafts are respectively meshed with two conical gears near the inner sidewall of the power seat through gears.

[0012] Furthermore, the worm gear extends laterally through the limiting plate, and both ends of the worm gear are fixed with bevel transmission gears, which mesh with the bevel gears on both sides of the limiting plate respectively.

[0013] Furthermore, the cleaning scraper sandwiched in the middle has arc grooves on both sides for use with the rolling wheel, and the cleaning scraper on the front and rear sides has arc grooves on the opposite side for use with the rolling wheel, and the arc grooves are attached to the surface of the rolling wheel.

[0014] Furthermore, the top right end of the base has a storage slot for use with the pressing plate, and the top of the pressing plate has several through holes. The push rod passes vertically through the through holes into the interior of the base and is slidably connected with the pressing plate.

[0015] Furthermore, a paddle is fixed to the bottom of the push rod, and a filling groove for use with the paddle is opened at the bottom of the pressing plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. This tableting device for producing powder coatings uses a drive motor inside the power base to rotate the two grinding wheels on both sides clockwise, and a worm gear to rotate the two grinding wheels in the middle counterclockwise. This process crushes the material placed inside the feed hopper, breaking down large particles of impurities. At the same time, a cleaning scraper continuously cleans the surface of the grinding wheels to prevent material residue from remaining on the surface of the grinding wheels. This avoids the problem of large particles of impurities in the material causing plasticity issues in the later tableting process.

[0018] 2. This powder coating production pressing device has a push rod inside the pressing plate, which allows the pressing plate to return to its initial position after pressing. The push rod can push down the pressed sheet formed inside the pressing plate, preventing the pressed sheet from adhering to the inside of the pressing plate during pressing, which would affect subsequent pressing and reduce quality. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged view of the A-structure;

[0022] Figure 4 This is a perspective view showing the connection between the drive motor, worm gear, drive rod, and rolling wheel of this utility model.

[0023] Figure 5 This is a perspective view of the connection between the power base and the cleaning scraper of this utility model;

[0024] Figure 6 This is a perspective view of the tablet compression assembly of this utility model.

[0025] In the diagram: 1. Base; 2. Feed hopper; 3. Crushing assembly; 31. Power seat; 32. Drive motor; 33. Drive rod; 34. Bevel gear; 35. Limiting plate; 36. Worm gear; 37. Crushing wheel; 38. Cleaning scraper; 4. Conveying assembly; 41. Drive wheel; 42. Conveyor belt; 43. Guide plate; 44. Support seat; 5. Pressing assembly; 51. Fixing frame; 52. Hydraulic telescopic rod; 53. Pressing plate; 54. Limiting frame; 55. Push rod. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1 In this embodiment, a tableting device for producing powder coatings includes a base 1 and a feed hopper 2 fixed on the top of the base 1. The feed hopper 2 is equipped with a crushing component 3 inside, the base 1 is equipped with a conveying component 4 inside, and a tableting component 5 is provided on the top of the base 1 on the side of the feed hopper 2.

[0028] Please see Figures 2 to 5 The crushing assembly 3 includes a power seat 31 fixed inside the feed hopper 2. Two drive motors 32 are fixed to the inner top wall of the power seat 31. Four drive rods 33 are rotatably connected inside the power seat 31. A bevel gear 34 is fixed to the outer side of the drive rods 33. Two limiting plates 35 are fixed to the inner bottom wall of the power seat 31. A worm gear 36 is rotatably connected inside the two limiting plates 35. Crushing wheels 37 are fixed to both ends of the drive rods 33 located outside the power seat 31. Three cleaning scrapers 38 that cooperate with the crushing wheels 37 are fixed to both sides of the power seat 31.

[0029] In this embodiment, the top of the power seat 31 is a conical structure and a partition is fixed inside. The output shafts of the two drive motors 32 are vertically inserted through the partition, and the two output shafts are respectively meshed with two conical gears 34 near the left and right inner walls of the power seat 31 through gears.

[0030] By setting a partition to fix the bottom of the drive motor 32, the output shaft of the drive motor 32 meshes with two bevel gears 34 near the left and right inner walls of the power seat 31, so that the left drive motor 32 can smoothly drive the leftmost drive rod 33 to rotate clockwise, and the right drive motor 32 drives the rightmost drive rod 33 to rotate counterclockwise.

[0031] In this embodiment, the worm 36 extends laterally through the limiting plate 35, and both ends of the worm 36 are fixed with bevel transmission gears. The two bevel transmission gears mesh with the bevel gears 34 on both sides of the limiting plate 35, respectively.

[0032] By setting a worm gear 36, the transmission connection between the two outer drive rods 33 and the two inner drive rods 33 is realized. When the left drive motor 32 drives the leftmost drive rod 33 to rotate clockwise, the left worm gear 36 drives the other drive rod 33 to rotate counterclockwise. The two drive rods 33 on the left rotate clockwise and counterclockwise respectively, so that the crushing wheel 37 continuously crushes the incoming material and crushes it, avoiding the presence of large particles in the material. The movement direction of the two drive rods 33 on the right is centrally symmetrical with that of the two drive rods 33 on the left.

[0033] In this embodiment, the cleaning scraper 38 sandwiched in the middle has arc grooves on both sides that are used in conjunction with the rolling wheel 37. The cleaning scraper 38 located on the front and rear sides has arc grooves on the opposite side that are used in conjunction with the rolling wheel 37. The arc grooves are attached to the surface of the rolling wheel 37.

[0034] By setting an arc groove on the side of the cleaning scraper 38 to fit the surface of the rolling wheel 37, the cleaning scraper 38 continuously cleans the material remaining on the surface of the rolling wheel 37 when the rolling wheel 37 rotates, so as to avoid the material affecting the subsequent rolling.

[0035] Please see Figure 2 The material conveying assembly 4 includes two drive wheels 41 rotatably connected to the inner side wall of the base 1. The outer sides of the two drive wheels 41 are covered by a conveyor belt 42. A guide plate 43 for guiding materials is fixed to the inner top wall of the base 1. A support seat 44 is fixed to the inner side wall of the bottom end of the base 1.

[0036] Please see Figure 6 The tablet pressing assembly 5 includes a fixing frame 51 fixed to the top right wall of the base 1. A hydraulic telescopic rod 52 is fixed to the bottom of the fixing frame 51. A pressing plate 53 is fixed to the bottom end of the hydraulic telescopic rod 52. A limit frame 54 is fixed to the inner bottom wall of the fixing frame 51. Several push rods 55 that cooperate with the pressing plate 53 are fixed to the bottom of the limit frame 54.

[0037] In this embodiment, the top right end of the base 1 is provided with a storage slot for use with the pressing plate 53. The top of the pressing plate 53 is provided with several through holes. The push rod 55 passes vertically through the through holes into the interior of the base 1 and is slidably connected with the pressing plate 53.

[0038] In this embodiment, the bottom of the push rod 55 is fixed with a paddle, and the bottom of the pressing plate 53 is provided with a filling groove for use with the paddle.

[0039] By setting a filling slot to store the paddle, when the pressing plate 53 is pressed, the paddle will move relative to the pressing plate 53 and be stored inside the filling slot, without affecting the pressing operation of the pressing plate 53.

[0040] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0041] The working principle of the above embodiments is as follows:

[0042] By injecting material into the feed hopper 2, the drive motor 32 is started, driving the two outer drive rods 33 to rotate clockwise and counterclockwise respectively. The rotation of the two outer drive rods 33 drives the two inner drive rods 33 to rotate counterclockwise and clockwise respectively through the two worm gears 36. In this way, the two drive rods 33 on both sides rotate continuously, driving the crushing wheel 37 to crush the incoming material, thereby crushing the larger material particles. Since the cleaning scraper 38 on the side of the crushing wheel 37 is in close contact with the surface of the crushing wheel 37, the material adhering to the surface of the crushing wheel 37 during the crushing process is continuously scraped off by the cleaning scraper 38 to the outlet of the feed hopper 2. The material is guided by the guide plate 43 to fall onto the surface of the conveyor belt 42. The drive wheel 41 drives the conveyor belt 42 to pass through the bottom of the feed hopper 2. The processed material is conveyed to the bottom of the fixed frame 51. The hydraulic telescopic rod 52 extends and pushes the pressing plate 53 to descend. After the pressing plate 53 descends to its lowest position, the paddle is fully embedded in the bottom of the pressing plate 53. At the same time, the pressing plate 53 presses the material and the conveyor belt 42 squeezes the support seat 44. The material forms a pressed sheet under the synchronous action of the support seat 44 and the pressing plate 53. At this time, the hydraulic telescopic rod 52 is controlled to retract and drive the pressing plate 53 to rise. Since the push rod 55 cannot move, the pressing plate 53 moves relative to the push rod 55 during the movement. The push rod 55, in conjunction with the paddle, pushes the pressed sheet attached to the inside of the pressing plate 53 down to the conveyor belt 42, thereby completing the pressing of the powder coating. This solves the problem that the pressing quality is affected by the failure to deal with large powder impurities in time during the powder coating feeding process.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A tableting device for producing powder coatings, comprising a base (1) and a feed hopper (2) fixed to the top of the base (1), characterized in that: The feed hopper (2) is equipped with a crushing assembly (3), the base (1) is equipped with a conveying assembly (4), and the top of the base (1) on the side of the feed hopper (2) is equipped with a pressing assembly (5). The crushing assembly (3) includes a power seat (31) fixed inside the feed hopper (2). Two drive motors (32) are fixed on the inner top wall of the power seat (31). Four drive rods (33) are rotatably connected inside the power seat (31). A bevel gear (34) is fixed on the outer side of the drive rod (33). Two limiting plates (35) are fixed on the inner bottom wall of the power seat (31). A worm gear (36) is rotatably connected inside both limiting plates (35). Crushing wheels (37) are fixed at both ends of the drive rod (33) located outside the power seat (31). Three cleaning scrapers (38) for use with the crushing wheels (37) are fixed on both sides of the power seat (31).

2. The tableting device for producing powder coatings according to claim 1, characterized in that: The material conveying assembly (4) includes two drive wheels (41) rotatably connected to the inner sidewall of the base (1). The outer sides of the two drive wheels (41) are covered with a conveyor belt (42). The inner top wall of the base (1) is fixed with a guide plate (43) for guiding materials. The bottom inner sidewall of the base (1) is fixed with a support seat (44).

3. The tableting device for producing powder coatings according to claim 1, characterized in that: The tablet pressing assembly (5) includes a fixing frame (51) fixed to the top right wall of the base (1). A hydraulic telescopic rod (52) is fixed to the bottom of the fixing frame (51). A pressing plate (53) is fixed to the bottom end of the hydraulic telescopic rod (52). A limiting frame (54) is fixed to the bottom wall of the fixing frame (51). Several push rods (55) that cooperate with the pressing plate (53) are fixed to the bottom of the limiting frame (54).

4. The tableting device for producing powder coatings according to claim 1, characterized in that: The top of the power seat (31) is a conical structure and a partition is fixed inside. The output shafts of the two drive motors (32) pass vertically through the partition, and the two output shafts are respectively meshed with two conical gears (34) close to the left and right inner walls of the power seat (31) through gears.

5. A tablet pressing device for producing powder coatings according to claim 1, characterized in that: The worm (36) extends laterally through the limiting plate (35), and both ends of the worm (36) are fixed with bevel transmission gears. The two bevel transmission gears mesh with the bevel gears (34) on both sides of the limiting plate (35).

6. A tableting apparatus for producing powder coatings according to claim 1, characterized in that: The cleaning scraper (38) sandwiched in the middle has arc grooves on both sides for use with the rolling wheel (37), and the cleaning scraper (38) located on the front and rear sides has arc grooves on the opposite side for use with the rolling wheel (37), and the arc grooves are attached to the surface of the rolling wheel (37).

7. A tableting apparatus for producing powder coatings according to claim 3, characterized in that: The top right end of the base (1) has a storage slot for use with the pressing plate (53). The top of the pressing plate (53) has several through holes. The push rod (55) passes vertically through the through holes into the interior of the base (1) and is slidably connected with the pressing plate (53).

8. A tablet pressing device for producing powder coatings according to claim 3, characterized in that: The bottom of the push rod (55) is fixed with a paddle, and the bottom of the pressing plate (53) is provided with a filling groove for use with the paddle.

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