Resin powder screening device for powder coating production

Abstract

The utility model relates to the technical field of powder coating production, and in particular to a resin powder screening device for powder coating production, comprising a support seat, a rotating shaft, a shielding cover, a pulley, a feed port, a material distribution connecting ring, a screening component and a limiting rod, the rotating shaft and the support seat are movably connected through a bearing, the shielding cover is sleeved on the outside of the rotating shaft, the pulley is fixedly arranged on the outside of one end of the rotating shaft, the feed port is fixedly arranged on the top of the shielding cover, and the material distribution connecting ring is fixedly arranged at the bottom of the feed port. The resin powder screening device for powder coating production performs screening through a rotating screening net, and the rotating screening material can make the powder rotate and be beaten inside the screening net to achieve an ideal screening effect. At the same time, pressurized air is input into the inside of the screening net during the screening process to lift the internal powder and increase the screening speed. A screening ring is arranged on the outside of the screening net to effectively increase the contact area between the powder and the screening component, thereby achieving a faster screening effect.

Description

Technical Field

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

[0002] In recent years, due to the rise of the furniture industry, powder coatings have entered the furniture market with their bright colors, strong and durable characteristics, and are widely used in some steel furniture, outdoor leisure furniture, bookcases and archives, teaching aids and desks. It has very good decorative effects and appearance. The coating film does not turn yellow during curing and baking, has good physical properties, and has good weather resistance. With the complete supporting facilities of powder coating raw materials, production equipment, testing instruments, and spraying equipment, my country's powder coating industry has achieved unprecedented development, with great progress in variety, quantity, quality, application, and people's understanding.

[0003] Powder coatings are mixed with fine resins and pigments. The size of the added resin particles needs to meet the production requirements of the coatings. Therefore, the added resin needs to be screened to remove the resin powder whose size does not meet the production requirements. The contact area between the powder and the screening net of the existing screening equipment is small, resulting in slower screening. Therefore, screening equipment is needed to effectively improve the screening efficiency. Utility Model Content

[0004] The utility model aims at the defects in the prior art and provides a resin powder screening device for powder coating production.

[0005] The utility model is realized through the following technical solutions:

[0006] A resin powder screening device for powder coating production, comprising a support seat, a rotating shaft, a shielding cover, a pulley, a feed port, a material distribution connecting ring, a screening assembly and a limit rod, wherein the rotating shaft is movably connected to the support seat via a bearing, the shielding cover is sleeved on the outside of the rotating shaft, the pulley is fixedly arranged on the outside of one end of the rotating shaft, the feed port is fixedly arranged on the top of the shielding cover, the material distribution connecting ring is fixedly arranged on the bottom of the feed port, the screening assembly is arranged inside the shielding cover, the limit rod is fixedly arranged at both ends of the shielding cover, the screening assembly comprises a screening net, a mounting ring, a screening ring and a synchronous connecting rod, the mounting ring is fixedly arranged on the outside of one end of the screening net, the screening ring is fixedly arranged on the outside of the screening net, and the synchronous connecting rod is fixedly arranged on the inside of the screening net.

[0007] In a preferred embodiment of the utility model, the rotating shaft on one side is a hollow steel pipe, one end of which penetrates and extends to the inside of one side of the screen mesh, and the rotating shaft on the other side is a sealed steel pipe or a solid steel shaft, and the pulley is fixed to the outside of one end of the rotating shaft;

[0008] The rotating shaft on one side of the hollow steel pipe can input external high-pressure gas into the screen mesh, increase the powder lifting through the internal airflow, and thus increase the screening speed.

[0009] In a preferred embodiment of the utility model, the vertical section of the material distribution connection ring is a V-shaped structure, and the mounting ring is sleeved outside the material distribution connection ring and movably connected to the material distribution connection ring;

[0010] The material dividing connecting ring with a V-shaped vertical section is convenient for distributing the powder input from the feed port to the screening nets on both sides, and is convenient for connecting the screening nets on both sides, so as to perform partitioned screening and increase the screening speed.

[0011] In a preferred embodiment of the present invention, the other end of the limiting rod is fixedly connected to the outer side of the top of the support seat, thereby effectively preventing the shielding cover from rotating along with the rotation of the rotating shaft.

[0012] In a preferred embodiment of the utility model, the vertical cross-section of the sieve ring is a trapezoidal structure or a W-shaped structure, the edge of which is sealed and fixed to the sieve net, and the surface of the sieve net is provided with a drop hole that matches the sieve ring;

[0013] The main function of the sieving ring is to increase the contact area between the added powder and the sieving assembly, thereby achieving faster sieving processing through a larger contact area.

[0014] In a preferred embodiment of the utility model, a discharge hole is provided at the bottom of the shielding cover, and the vertical section of the outer wall of the shielding cover is a funnel-shaped structure, which is convenient for the rapid discharge of the screened powder.

[0015] The beneficial effects of the utility model are:

[0016] The resin powder screening device for powder coating production performs screening through a rotating screening net. The rotating screening net can make the powder rotate and be beaten inside the screening net to achieve an ideal screening effect. At the same time, pressurized air is input into the screen net during the screening process to lift the internal powder and increase the screening speed. A screening ring is arranged on the outside of the screening net to effectively increase the contact area between the powder and the screening component to achieve a faster screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a resin powder screening device for powder coating production of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the resin powder screening device for powder coating production of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the sieving component of the resin powder sieving device for powder coating production of the utility model.

[0020] In the figure: 1. support seat; 2. rotating shaft; 3. shielding cover; 4. pulley; 5. feed port; 6. material distribution connecting ring; 7. screening assembly; 71. screening net; 72. mounting ring; 73. screening ring; 74. synchronous connecting rod; 8. limit rod. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0022] like Figure 1-3 The resin powder screening device for powder coating production shown in the figure includes a support seat 1, a rotating shaft 2, a shielding cover 3, a pulley 4, a feed port 5, a material distribution connecting ring 6, a screening assembly 7 and a limit rod 8. The rotating shaft 2 is movably connected to the support seat 1 through a bearing, the shielding cover 3 is sleeved on the outside of the rotating shaft 2, the pulley 4 is fixedly arranged on the outside of one end of the rotating shaft 2, the feed port 5 is fixedly arranged at the top of the shielding cover 3, the material distribution connecting ring 6 is fixedly arranged at the bottom of the feed port 5, the screening assembly 7 is arranged inside the shielding cover 3, the limit rod 8 is fixedly arranged at both ends of the shielding cover 3, the screening assembly 7 includes a screening net 71, a mounting ring 72, a screening ring 73 and a synchronous connecting rod 74, the mounting ring 72 is fixedly arranged on the outside of one end of the screening net 71, the screening ring 73 is fixedly arranged on the outside of the screening net 71, and the synchronous connecting rod 74 is fixedly arranged on the inside of the screening net 71.

[0023] Specifically, one side of the rotating shaft 2 is a hollow steel pipe, one end of which passes through and extends to the inside of one side of the screen mesh 71, and the other side of the rotating shaft 2 is a sealed steel pipe or a solid steel shaft. The pulley 4 is fixed to the outside of one end of the rotating shaft 2. The vertical section of the material distribution connecting ring 6 is a V-shaped structure. The mounting ring 72 is sleeved on the outside of the material distribution connecting ring 6 and is movably connected to the material distribution connecting ring 6. The other end of the limiting rod 8 is fixedly connected to the outside of the top of the support seat 1. The vertical section of the screen ring 73 is a trapezoidal structure or a W-shaped structure, and its edge is sealed and fixed to the screen mesh 71. A drop hole cooperating with the screen ring 73 is opened on the surface of the screen mesh 71, and a discharge hole is opened at the bottom of the shielding cover 3. The vertical section of the outer wall of the shielding cover 3 is a funnel-shaped structure.

[0024] In this embodiment, the screening assembly 7 is movably connected to the support seat 1 through the rotating shafts 2 at both ends. After the driving device is connected to the pulley 4 at the end of the rotating shaft 2 on one side through a belt, the driving device can be started to transmit through the belt and pulley 4 to realize the rotation of the internal screening assembly 7, so that the internal powder is rolled and beaten in the screening net 71, and the powder that meets the production needs falls from the fine sieve holes on the surface of the screening net 71, thereby preliminarily realizing the screening work. The rotating shaft 2 on one side is a hollow structure, and an external air source can be connected to allow high-pressure air to enter the inside of the screening net 71, so that the internal powder is lifted, which can effectively reduce the blockage of the sieve holes and accelerate the screening. At this time, the shielding cover 3 blocks the fine particles produced by the screening, so that the powder that meets the production needs is discharged from the discharge hole, thereby achieving the effect of collecting and discharging.

[0025] Furthermore, a sieve ring 73 is fixedly provided on the outer side of the sieve net 71. After the powder enters from the feed port 5, it is separated by the dividing connecting ring 6 and discharged into the sieve nets 71 on both sides. Part of the powder will directly enter the bottom inner side of the sieve ring 73. Then, when the driving assembly drives the rotating shaft 2 to rotate, the powder will rotate and be beaten synchronously in the sieve ring 73 and the sieve net 71. The sieve ring 73 effectively increases the contact area between the powder and the sieve assembly 7, thereby effectively increasing the area of ​​the sieve area, thereby increasing the sieve speed.

[0026] It should be noted that the parts not covered in the present invention are the same as the prior art or can be implemented by the prior art; the various drives in the present invention can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, etc. in combination with connecting rods, guide rods, etc., and are not limited to the description in the specification and the structures in the drawings.

[0027] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A resin powder screening device for powder coating production, comprising a support seat (1), a rotating shaft (2), a shielding cover (3), a pulley (4), a feed inlet (5), a material distribution connecting ring (6), a screening assembly (7) and a limit rod (8), characterized in that: The rotating shaft (2) is movably connected to the supporting seat (1) via a bearing, the shielding cover (3) is sleeved on the outside of the rotating shaft (2), the pulley (4) is fixedly arranged on the outside of one end of the rotating shaft (2), the feed port (5) is fixedly arranged on the top of the shielding cover (3), the material distribution connecting ring (6) is fixedly arranged on the bottom of the feed port (5), the screening assembly (7) is arranged inside the shielding cover (3), and the limiting rod (8) is fixedly arranged at both ends of the shielding cover (3); The sieving assembly (7) comprises a sieving net (71), a mounting ring (72), a sieving ring (73) and a synchronous connecting rod (74); the mounting ring (72) is fixedly arranged on the outside of one end of the sieving net (71); the sieving ring (73) is fixedly arranged on the outside of the sieving net (71); and the synchronous connecting rod (74) is fixedly arranged on the inside of the sieving net (71).

2. The resin powder screening device for powder coating production according to claim 1, characterized in that: The rotating shaft (2) on one side is a hollow steel pipe, one end of which penetrates and extends into one side of the sieve net (71); the rotating shaft (2) on the other side is a sealed steel pipe or a solid steel shaft, and the pulley (4) is fixed on the outside of one end of the rotating shaft (2).

3. The resin powder screening device for powder coating production according to claim 1, characterized in that: The material distribution connecting ring (6) has a V-shaped vertical cross-section. The mounting ring (72) is sleeved on the outside of the material distribution connecting ring (6) and is movably connected to the material distribution connecting ring (6).

4. The resin powder screening device for powder coating production according to claim 1, characterized in that: The other end of the limiting rod (8) is fixedly connected to the outer side of the top of the support seat (1).

5. The resin powder screening device for powder coating production according to claim 1, characterized in that: The sieve ring (73) has a trapezoidal or W-shaped vertical section, and its edge is sealed and fixed to the sieve net (71). The surface of the sieve net (71) is provided with a drop hole that matches the sieve ring (73).

6. The resin powder screening device for powder coating production according to claim 1, characterized in that: A discharge hole is provided at the bottom of the shielding cover (3), and the vertical cross-section of the outer wall of the shielding cover (3) is a funnel-shaped structure.

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