A raw material premixing device for powder coating production

Abstract

The utility model relates to a raw material premixing device for powder coating production, which belongs to the technical field of powder coating production, and comprises a box body, a support frame is fixed on the outer surface of the box body, a feed rod is fixed on the right side of the box body, a discharge rod is fixed on the bottom of the box body, a solenoid valve is fixed on the outer surface of the discharge rod, and a stirring mechanism is provided on the top of the box body, and the stirring mechanism comprises a servo motor fixed to the top of the box body, a transmission rod is fixed on the output shaft of the servo motor, and a primary premixing component and a secondary premixing component are fixed on the outer surface of the transmission rod. In the raw material premixing device for powder coating production, the primary premixing component continuously changes the stirring direction during the stirring process to achieve more efficient stirring, and the secondary premixing mechanism assists the stirring at the same time. With the cooperation of the primary premixing mechanism and the secondary premixing mechanism, the powder coating is fully mixed, and the mixing quality is ensured while further improving the stirring efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating production, in particular to a raw material premixing device for powder coating production. Background Art

[0002] Premixing is an important process that cannot be ignored in the production of powder coatings. It plays a decisive role in the performance of powder coatings. Insufficient premixing may lead to uneven composition of the coating film, resulting in poor leveling of the coating surface, poor mechanical properties, uneven color of the coating surface, etc. Therefore, the design and performance of the premixing device are crucial to ensure the quality of powder coatings.

[0003] In the face of different problems, the designed premixing devices have different focuses. For example, a Chinese patent (publication number: CN220715662U) discloses a raw material premixing device for powder coating production and processing, including a mixing box, a stirring mechanism and a crushing mechanism. A partition is fixedly installed in the mixing box, and the partition is conical in structure. The stirring mechanism includes a mounting frame, a motor, a stirring shaft, two U-shaped scrapers and multiple stirring blades. The mounting frame is fixedly installed on the top of the mixing box, and the motor is fixedly installed in the mounting frame. The output shaft end of the motor rotates and passes through the top of the mixing box. The stirring shaft is fixedly installed at the output shaft end of the motor. The utility model has a reasonable design and good practicality. When the production raw materials are stirred and mixed, the raw materials adhering to the inner wall of the mixing box can be scraped off to improve the raw material mixing efficiency. Then the mixed raw materials are screened, and the large-particle raw materials consolidated into blocks are crushed and ground.

[0004] The device simultaneously feeds different raw materials in proportion into a mixing box through two feed hoppers, covers the mixing box with two cover plates, controls the operation of a motor, and drives a stirring shaft, a plurality of stirring blades and two scrapers to rotate. While stirring the raw materials, the two U-shaped scrapers scrape the raw materials adhering to the inner wall of the mixing box. The device improves efficiency by scraping the raw materials remaining on the inner wall. However, in terms of stirring, the stirring efficiency is still insufficient because the plurality of stirring blades rotate in the same direction at the same time. Powder coating may agglomerate or be unevenly mixed. Moreover, since the small-particle solid raw materials cannot be fully mixed with the powder by passing through a plurality of stirring blades alone, defects may occur in subsequent processing, thereby affecting the performance of the final product. Therefore, a raw material premixing device for powder coating production is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a raw material premixing device for powder coating production, which has the advantages of high stirring efficiency and solves the problem of insufficient stirring efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material premixing device for powder coating production, comprising a box body, a support frame is fixed to the outer surface of the box body, a feed rod is fixed to the right side of the box body, a discharge rod is fixed to the bottom of the box body, a solenoid valve is fixed to the outer surface of the discharge rod, and a stirring mechanism is provided on the top of the box body that penetrates into its inner cavity and is used to stir the powder coating;

[0007] The stirring mechanism comprises a servo motor fixed to the top of the box body, the output shaft of the servo motor is fixed with a transmission rod penetrating into the inner cavity of the box body, and the outer surface of the transmission rod is respectively fixed with a primary premixing component and a secondary premixing component from top to bottom.

[0008] Furthermore, a partition is fixed in the inner cavity of the box body, a connecting hole and four positioning holes are opened on the partition, and the first-stage premixing assembly is located above the partition.

[0009] Furthermore, the support frame includes a box sleeve fixed to the outer surface of the box body, six support columns are fixed to the bottom of the box sleeve, and a ring-shaped base is fixed to the bottom of the six support columns.

[0010] Furthermore, the first-stage premixing assembly includes a driving gear fixed to the outer surface of the transmission rod, ten connecting rods are fixed to the top of the driving gear, and the bottoms of the ten connecting rods are fixed with an inner gear ring located on the outer ring of the driving gear. Four driven gears are meshed between the driving gear and the inner gear ring, a rotating rod is fixed to the bottom of each of the driven gears, and a stirring paddle is fixed to the outer surface of each of the rotating rods.

[0011] Furthermore, the driving gear is fixed with external teeth on both the front and rear sides, the inner gear ring is fixed with internal teeth on both the left and right sides of the inner wall, the rotating rod is rotatably connected to the partition through a connecting bearing, and the rotating rod passes through the positioning hole.

[0012] Furthermore, the transmission rod passes through the connecting hole, the feed rod is fixed between the partition and the stirring paddle, and the stirring paddle is curved.

[0013] Furthermore, the secondary premixing assembly is composed of a fixing frame, a plurality of stable bearings and a plurality of stirring blades. The fixing frame is fixed to the outer surface of the transmission rod, and the inner side of the fixing frame is rotatably connected to the stirring blades through the stable bearings.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The raw material premixing device for powder coating production pours powder coating from a feed rod, starts a servo motor, and transmits power to a transmission rod through an output shaft, and further transmits power to a primary premixing component and a secondary premixing component. The primary premixing component continuously changes the stirring direction during the stirring process to achieve more efficient stirring. At the same time, the secondary premixing mechanism assists in stirring. The stirring blades on the secondary premixing mechanism rotate freely with the stirring, and the powder coating is fully mixed while being protected. With the cooperation of the primary premixing mechanism and the secondary premixing mechanism, the powder coating is fully mixed, and the mixing quality is ensured while the stirring efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional cross-sectional view of the utility model;

[0017] Figure 2 This is a three-dimensional appearance diagram of the utility model;

[0018] Figure 3 This is a three-dimensional diagram of the first-stage premixing component of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of the secondary premixing component of the utility model.

[0020] In the figure: 1 box body, 2 support frame, 3 feed rod, 4 discharge rod, 5 stirring mechanism, 501 servo motor, 502 transmission rod, 503 first-stage premixing assembly, 5031 driving gear, 5032 connecting rod, 5033 inner ring gear, 5034 driven gear, 5035 rotating rod, 5036 stirring paddle, 504 second-stage premixing assembly, 5041 fixing frame, 5042 stabilizing bearing, 5043 stirring blade, 6 solenoid valve. 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] See also Figures 1 to 2 A raw material premixing device for powder coating production in this embodiment includes a box body 1, a support frame 2 is fixed to the outer surface of the box body 1, a feed rod 3 is fixed to the right side of the box body 1, a discharge rod 4 is fixed to the bottom of the box body 1, a solenoid valve 6 is fixed to the outer surface of the discharge rod 4, and a stirring mechanism 5 is provided on the top of the box body 1, which penetrates into its inner cavity and is used to stir the powder coating.

[0023] Furthermore, the support frame 2 includes a box cover fixed to the outer surface of the box body 1, six support columns are fixed to the bottom of the box cover, and a circular ring-shaped base is fixed to the bottom of the six support columns. Fixing the six support columns can make the support more reliable. Surrounding the outer surface of the box body 1 with the box cover can provide support for the box body 1 in any direction to prevent the box body 1 from overturning due to force in a specific direction. The circular ring-shaped base can ensure stable support while reducing the overall weight.

[0024] It should be noted that when the raw materials are poured into the feed rod 3 and the stirring mechanism 5 is started, due to the plurality of internal stirring forms, the box body 1 will be subjected to forces in many different directions. At this time, with the cooperation of the box cover, six support columns and the base, the box body 1 is given all-round support to prevent the box body 1 from accidentally falling down.

[0025] Please refer again Figure 1 and Figures 3 to 4 In order to improve the mixing efficiency, the stirring mechanism 5 in this embodiment includes a servo motor 501 fixed to the top of the box body 1, and the output shaft of the servo motor 501 is fixed with a transmission rod 502 that penetrates the inner cavity of the box body 1. A partition is fixed to the inner cavity of the box body 1, and a connecting hole and four positioning holes are opened on the partition. The transmission rod 502 penetrates the connecting hole, and the outer surface of the transmission rod 502 is fixed with a first-level premixing component 503 and a second-level premixing component 504 from top to bottom, and the first-level premixing component 503 is located above the partition.

[0026] It should be noted that the first-stage premixing assembly 503 includes a driving gear 5031 fixed to the outer surface of the transmission rod 502, ten connecting rods 5032 are fixed to the top of the driving gear 5031, and the bottoms of the ten connecting rods 5032 are fixed with an inner gear ring 5033 located on the outer ring of the driving gear 5031, and four driven gears 5034 are meshed between the driving gear 5031 and the inner gear ring 5033, and a rotating rod 5035 is fixed to the bottom of each driven gear 5034, and a stirring paddle 5036 is fixed to the outer surface of each rotating rod 5035. The provision of ten connecting rods 5032 can ensure the stability of the connection and ensure that the driving gear 5031 and the inner gear ring 5033 can rotate simultaneously to achieve the subsequent stirring function.

[0027] Furthermore, external teeth are fixed on both the front and rear sides of the driving gear 5031, and internal teeth are fixed on both the left and right sides of the inner wall of the inner gear ring 5033. The rotating rod 5035 is rotatably connected to the partition through a connecting bearing. The rotating rod 5035 passes through the positioning hole. The feed rod 3 is fixed between the partition and the stirring paddle 5036. The stirring paddle 5036 is curved. The setting of the connecting bearing can not only ensure that the rotating rod 5035 can transmit power smoothly, but also prevent powder from invading the gear and slow down the wear of the tooth surface. The curved stirring paddle 5036 can fully mobilize the air, thereby promoting the raw materials to fully contact with the air to achieve full mixing.

[0028] In this embodiment, the toothed parts of the driving gear 5031 and the inner gear ring 5033 are meshed with the driven gear 5034. When the driving gear 5031 rotates together with the inner gear ring 5033, the driven gear 5034 originally meshed with the driving gear 5031 is transformed into meshing with the inner gear ring 5033. At this time, the driven gear 5034 has the same rotation direction as the driving gear 5031. At the same time, the driven gear 5034 originally meshed with the inner gear ring 5033 is transformed into meshing with the driving gear 5031. At this time, the driven gear 5034 has a rotation direction opposite to that of the driving gear 5031. When the driving gear 5031 and the inner gear ring 5033 are working continuously, this meshing mode is constantly alternating to achieve more efficient mixing.

[0029] In addition, the secondary premixing assembly 504 is composed of a fixed frame 5041, a plurality of stable bearings 5042 and a plurality of stirring blades 5043. The fixed frame 5041 is fixed to the outer surface of the transmission rod 502, and the inner side of the fixed frame 5041 is rotatably connected to the stirring blades 5043 through the stable bearings 5042. The stirring blades 5043 can be rotatably connected to the stable bearings 5042 so that the stirring blades 5043 can rotate freely during the stirring process, which can further accelerate the mixing and protect the raw materials to a certain extent.

[0030] It should be noted that due to the particularity of the tooth distribution of the driving gear 5031 and the inner ring gear 5033, the four driven gears 5034 can continuously change the rotation direction during the stirring process to promote the full mixing of the raw materials. At the same time, the fixed frame 5041 and the stirring blades 5043 assist in stirring and further improve the stirring efficiency, thereby ensuring the mixing quality and greatly improving the mixing efficiency.

[0031] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the utility model is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The utility model is mainly used to protect mechanical devices, so the utility model will no longer explain the control method and circuit connection in detail.

[0032] The working principle of the above embodiment is:

[0033] (1) After the powder coating is poured from the feed rod 3, the servo motor 501 is started. The power of the servo motor 501 is transmitted to the driving gear 5031 through the transmission rod 502. Since the driving gear 5031 and the inner gear ring 5033 are fixed by the connecting rod 5032, the inner gear ring 5033 rotates synchronously with the driving gear 5031. The four driven gears 5034 are meshed with the driving gear 5031 and the inner gear ring 5033 in groups of two. At this time, one group of driven gears 5034 rotates clockwise to drive the rotating rod 5035 and the stirring paddle 5036 thereon to rotate clockwise, and the other group of driven gears 5034 and the rotating rod 5035 and the stirring paddle 5036 thereon rotate counterclockwise. The driving gear 5031 rotates continuously. The two groups of driven gears 5034 will continuously change the rotation direction to achieve efficient stirring, fully mix the raw materials, and improve the quality of the raw materials.

[0034] (2) The transmission rod 502 will also transmit power to the fixed frame 5041, and the stirring paddle 5036 will rotate synchronously with the transmission rod 502, further improving the mixing effect. At the same time, since the stirring blade 5043 is rotatably connected to the fixed frame 5041 through the stable bearing 5042, the stirring blade 5043 can rotate freely during the stirring process, which can improve the mixing efficiency and protect the raw materials to a certain extent to avoid damage to the raw materials. After the stirring is completed, the solenoid valve 6 is opened to complete the premixing. With the cooperation of the first-level premixing component 503 and the second-level premixing component 504, both the mixing quality and the mixing efficiency can be improved.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A raw material premixing device for powder coating production, comprising a housing (1), characterized in that: A support frame (2) is fixed on the outer surface of the box body (1), a feeding rod (3) is fixed on the right side of the box body (1), a discharging rod (4) is fixed on the bottom of the box body (1), a solenoid valve (6) is fixed on the outer surface of the discharging rod (4), and a stirring mechanism (5) penetrating into the inner cavity of the box body (1) and used for stirring the powder coating is provided on the top of the box body (1); The stirring mechanism (5) comprises a servo motor (501) fixed to the top of the box (1); a transmission rod (502) penetrating the inner cavity of the box (1) is fixed to the output shaft of the servo motor (501); and a first-stage premixing assembly (503) and a second-stage premixing assembly (504) are respectively fixed to the outer surface of the transmission rod (502) from top to bottom.

2. A raw material premixing device for powder coating production according to claim 1, characterized in that: A partition is fixed to the inner cavity of the box body (1), a connection hole and four positioning holes are opened on the partition, and the first-stage premixing assembly (503) is located above the partition.

3. A raw material premixing device for powder coating production according to claim 1, characterized in that: The support frame (2) comprises a box sleeve fixed to the outer surface of the box body (1), six support columns are fixed to the bottom of the box sleeve, and a circular ring-shaped base is fixed to the bottom of the six support columns.

4. A raw material premixing device for powder coating production according to claim 2, characterized in that: The first-stage premixing assembly (503) includes a driving gear (5031) fixed to the outer surface of the transmission rod (502), ten connecting rods (5032) are fixed to the top of the driving gear (5031), and the bottoms of the ten connecting rods (5032) are all fixed with an inner gear ring (5033) located on the outer ring of the driving gear (5031), four driven gears (5034) are meshed between the driving gear (5031) and the inner gear ring (5033), a rotating rod (5035) is fixed to the bottom of each driven gear (5034), and a stirring paddle (5036) is fixed to the outer surface of each rotating rod (5035).

5. A raw material premixing device for powder coating production according to claim 4, characterized in that: External teeth are fixed on both the front and rear sides of the driving gear (5031), internal teeth are fixed on both the left and right sides of the inner wall of the inner gear ring (5033), the rotating rod (5035) is rotatably connected to the partition plate via a connecting bearing, and the rotating rod (5035) passes through the positioning hole.

6. A raw material premixing device for powder coating production according to claim 4, characterized in that: The transmission rod (502) passes through the connection hole, and the feed rod (3) is fixed between the partition and the stirring paddle (5036), and the stirring paddle (5036) is curved.

7. A raw material premixing device for powder coating production according to claim 1, characterized in that: The secondary premixing assembly (504) is composed of a fixed frame (5041), a plurality of stable bearings (5042) and a plurality of stirring blades (5043); the fixed frame (5041) is fixed to the outer surface of the transmission rod (502); the inner side of the fixed frame (5041) is rotatably connected to the stirring blades (5043) via the stable bearings (5042).

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