A powder coating melt extruder

Abstract

This utility model relates to the field of coating preparation technology and discloses a powder coating melt extruder, including a mixing tank with a mixing component at the top. The utility model operates a drive motor, whose output rotates a motor rotating rod. The motor rotating rod rotates a stirring and mixing blade, which in turn rotates a fixed base. This allows materials entering the mixing tube through the feed pipe to be mixed directly. Different materials inside the feed pipe are mixed by the stirring and mixing blade, and the mixed material then enters the mixing tank. Simultaneously, the motor rotating rod rotates a dispersing and mixing disc, which flings the material accumulated in the middle of the mixing tank to the left and right sides inside, increasing the mixing efficiency. At the same time, the motor rotating rod rotates a bottom scraper, which scrapes and rolls up the material accumulated at the bottom of the mixing tank's inner wall, preventing material from accumulating there.

Description

Technical Field

[0001] This utility model relates to the field of coating preparation technology, and in particular to a powder coating melt extruder. Background Technology

[0002] A melt extrusion unit for powder coatings is a device used to heat powder coatings to a certain temperature, melting them and allowing them to be evenly applied to the surface of the object being coated. As an environmentally friendly coating, powder coatings require a melting device to transform their powder state into a liquid or semi-liquid state during the coating process, enabling spraying, electrostatic spraying, and other treatments. The core function of the melting device is to heat the powder coating particles to their melting point, forming a more fluid liquid state for easy spraying onto the target surface. To prevent the powder coating from clumping or settling, the melting device is usually equipped with a stirring device. The purpose of stirring is to ensure uniform heating of the coating, avoiding localized overheating or uneven melting.

[0003] Existing powder coating melt extrusion devices are usually equipped with stirring devices to ensure uniform heating and mixing of powder coatings, avoid agglomeration or sedimentation, and ensure good fluidity of the melted coating. Traditional mixing tanks often pour heated materials directly into the tank and then use stirring devices to mix the materials. However, such simple stirring devices have low stirring efficiency and require a long stirring time. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a powder coating melt extruder.

[0005] This utility model is achieved by the following technical solution: a powder coating melt extruder, including a mixing tank, a mixing component is provided on the top of the mixing tank, and a stirring component is provided inside the mixing tank.

[0006] The mixing assembly includes a mixing tube with a feed pipe connected to its inner wall. A drive motor is fixedly connected to the top of the mixing tube, and a motor rotating rod is fixedly connected to the output end of the drive motor. The outer wall of the motor rotating rod is rotatably connected to the inner wall of the mixing tank. The motor rotating rod penetrates the inner wall of the mixing tank and extends therethrough. A stirring blade is fixedly connected to the outer wall of the motor rotating rod. A fixing seat is fixedly connected to the end of the stirring blade away from the motor rotating rod. The fixing seat is fixedly connected to the surface of the motor rotating rod. A dispersing and stirring disc is fixedly connected to the surface of the motor rotating rod. A scraper is fixedly connected to the end of the motor rotating rod away from the drive motor. The surface of the bottom scraper is slidably connected to the bottom of the inner wall of the mixing tank.

[0007] As a further improvement to the above scheme, two feed pipes are provided, which are symmetrically arranged with the mixing pipe as the center, and several dispersing and stirring discs are provided.

[0008] Through the above technical solution, the drive motor is operated, the output end of the drive motor rotates the motor rotating rod, the motor rotating rod rotates the stirring and mixing blades, and the stirring and mixing blades rotate the fixed seat, so that the materials entering the mixing tube through the feed pipe are mixed, and the different materials inside the feed pipe are directly stirred and mixed by the stirring and mixing blades.

[0009] As a further improvement to the above solution, the stirring assembly includes a drive gear, which is fixedly connected to the surface of the motor rotating rod. A driven gear is meshed with the outer wall of the drive gear. A gear limiting ring is fixedly connected to the top of the inner wall of the mixing tank, and the outer wall of the driven gear is meshed with the outer wall of the gear limiting ring.

[0010] As a further improvement to the above solution, a rotating rod is fixedly connected to the bottom of the gear limiting ring, and a double-screw stirring blade is fixedly connected to the outer wall of the rotating rod.

[0011] As a further improvement to the above solution, there are two driven gears, and the two gear limiting rings are symmetrically arranged with the motor rotating rod as the center. There are also two twin-screw stirring blades, which are symmetrically arranged with the motor rotating rod as the center.

[0012] As a further improvement to the above solution, a discharge pipe is connected to the bottom of the inner wall of the mixing tank, and a support leg is fixedly connected to the bottom of the mixing tank.

[0013] As a further improvement to the above solution, three support legs are provided, and the three support legs are evenly arranged around the motor rotating rod.

[0014] With the above technical solution, the motor rotating rod rotates while the motor rotating rod rotates the drive gear, the drive gear meshes with the driven gear, and the driven gear meshes with the gear limiting ring, so that the driven gear rotates along the drive gear and the gear limiting ring. At the same time, the gear limiting ring rotates the rotating rod, and the rotating rod rotates the double-helix stirring blade.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a drive motor to rotate a motor rod, which in turn rotates a mixing blade. The mixing blade rotates a fixed base, thus mixing the materials entering the mixing tube through the feed pipe. Different materials inside the feed pipe are directly mixed by the mixing blade. The pre-mixed materials then enter the mixing tank. Simultaneously, the motor rod rotates a dispersing disc, which flings the material accumulated in the middle of the mixing tank to the left and right sides, increasing mixing efficiency. At the same time, the motor rod rotates a bottom scraper, which scrapes and rolls up the material accumulated at the bottom of the mixing tank's inner wall, preventing material buildup and facilitating subsequent mixing operations, further increasing mixing efficiency.

[0017] This invention utilizes a motor rotating rod to rotate a drive gear, which meshes with a driven gear. The driven gear then meshes with a gear limiting ring, causing the driven gear to rotate along the drive gear and the gear limiting ring. Simultaneously, the gear limiting ring rotates a rotating rod, which in turn rotates a double-helix stirring blade. This double-helix stirring blade stirs and mixes the materials inside the mixing tank. The design of the double-helix stirring blade, with two spiral blades rotating in coordination, generates strong shearing and flow forces during the stirring process, ensuring that the materials are mixed quickly and evenly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the hybrid component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the stirring assembly structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the stirring assembly of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Mixing tank; 2. Mixing assembly; 201. Mixing pipe; 202. Feed pipe; 203. Drive motor; 204. Motor rotating rod; 205. Mixing blades; 206. Fixing base; 207. Dispersing and mixing disc; 208. Bottom scraper; 3. Mixing assembly; 301. Drive gear; 302. Driven gear; 303. Gear limit ring; 304. Rotating rod; 305. Twin-screw mixing blades; 306. Discharge pipe; 307. Support leg. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-5 The powder coating melt extruder of this embodiment includes a mixing tank 1, a mixing component 2 is provided on the top of the mixing tank 1, and a stirring component 3 is provided inside the mixing tank 1.

[0028] The mixing component 2 includes a mixing pipe 201, with a feed pipe 202 connected to the inner wall of the mixing pipe 201. A drive motor 203 is fixedly connected to the top of the mixing pipe 201, and a motor rotating rod 204 is fixedly connected to the output end of the drive motor 203. The outer wall of the motor rotating rod 204 is rotatably connected to the inner wall of the mixing tank 1. The motor rotating rod 204 penetrates the inner wall of the mixing tank 1 and extends therethrough. A stirring blade 205 is fixedly connected to the outer wall of the motor rotating rod 204. A fixing seat 206 is fixedly connected to the end of the stirring blade 205 away from the motor rotating rod 204. The fixing seat 206 is fixedly connected to the surface of the motor rotating rod 204. A dispersing and stirring disc 207 is fixedly connected to the surface of the motor rotating rod 204. A scraper 208 is fixedly connected to the end of the motor rotating rod 204 away from the drive motor 203. The surface of the bottom scraper 208 is slidably connected to the bottom of the inner wall of the mixing tank 1.

[0029] There are two feed pipes 202, which are symmetrically arranged with the mixing pipe 201 as the center, and there are several dispersing and stirring discs 207.

[0030] The stirring assembly 3 includes a drive gear 301, which is fixedly connected to the surface of the motor rotating rod 204. A driven gear 302 is meshed with the outer wall of the drive gear 301. A gear limiting ring 303 is fixedly connected to the top of the inner wall of the mixing tank 1. The outer wall of the driven gear 302 is meshed with the outer wall of the gear limiting ring 303.

[0031] A rotating rod 304 is fixedly connected to the bottom of the gear limiting ring 303, and a double-screw stirring blade 305 is fixedly connected to the outer wall of the rotating rod 304.

[0032] There are two driven gears 302, and two gear limit rings 303 are symmetrically arranged with the motor rotating rod 204 as the center. There are two twin-screw stirring blades 305, and the two twin-screw stirring blades 305 are symmetrically arranged with the motor rotating rod 204 as the center.

[0033] A discharge pipe 306 is connected to the bottom of the inner wall of the mixing tank 1, and a support leg 307 is fixedly connected to the bottom of the mixing tank 1.

[0034] There are three support legs 307, which are evenly distributed around the motor rotating rod 204.

[0035] The implementation principle of a powder coating melt extruder in this embodiment is as follows: The drive motor 203 rotates the motor rotating rod 204 at its output end, which in turn rotates the mixing blades 205. The mixing blades 205 rotate the fixed base 206, thereby mixing the materials entering the mixing pipe 201 through the feed pipe 202. Different materials inside the feed pipe 202 are directly mixed by the mixing blades 205. The pre-mixed materials then enter the mixing tank 1. Simultaneously, the motor rotating rod 204 rotates the dispersing and mixing disc 207, which flings the material accumulated in the middle of the mixing tank 1 to the left and right sides inside the mixing tank 1, increasing the mixing efficiency. At the same time, the motor rotating rod 204 rotates the bottom scraper 208, which scrapes and rolls up the material accumulated at the bottom of the inner wall of the mixing tank 1, thus preventing material buildup. The mixture accumulates at the bottom of the inner wall of the mixing tank 1, facilitating subsequent mixing operations and increasing its mixing efficiency. Simultaneously, the motor rotating rod 204 rotates the drive gear 301, which meshes with the driven gear 302. The driven gear 302 meshes with the gear limiting ring 303, causing the driven gear 302 to rotate along the drive gear 301 and the gear limiting ring 303. At the same time, the gear limiting ring 303 rotates the rotating rod 304, which in turn rotates the double-spiral stirring blade 305. This causes the double-spiral stirring blade 305 to mix the materials inside the mixing tank 1. The design of the double-spiral stirring blade 305, with its two spiral blades rotating in coordination, generates strong shearing and flow forces during mixing, ensuring rapid and uniform mixing of the materials. The mixed product is then discharged through the discharge pipe 306 to the cooling device for subsequent extrusion and cutting operations.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A powder coating melt extruder characterized by, It includes a mixing tank (1), a mixing component (2) is provided on the top of the mixing tank (1), and a stirring component (3) is provided inside the mixing tank (1); The mixing component (2) includes a mixing tube (201), the inner wall of which is connected to a feed pipe (202). A drive motor (203) is fixedly connected to the top of the mixing tube (201), and a motor rotating rod (204) is fixedly connected to the output end of the drive motor (203). The outer wall of the motor rotating rod (204) is rotatably connected to the inner wall of the mixing tank (1). The motor rotating rod (204) penetrates the inner wall of the mixing tank (1) and extends therethrough. A stirring rod is fixedly connected to the outer wall of the motor rotating rod (204). A mixing blade (205) is fixedly connected to a fixed base (206) at one end away from the motor rotating rod (204). The fixed base (206) is fixedly connected to the surface of the motor rotating rod (204). A dispersing and stirring disc (207) is fixedly connected to the surface of the motor rotating rod (204). A scraper (208) is fixedly connected to one end of the motor rotating rod (204) away from the drive motor (203). The surface of the bottom scraper (208) is slidably connected to the bottom of the inner wall of the mixing tank (1).

2. A powder coating melt extruder as claimed in claim 1, characterized in that: There are two feed pipes (202), which are symmetrically arranged with the mixing pipe (201) as the center, and there are several dispersing and stirring discs (207).

3. A powder coating melt extruder as claimed in claim 1, characterized in that: The stirring assembly (3) includes a drive gear (301), which is fixedly connected to the surface of the motor rotating rod (204). A driven gear (302) is meshed with the outer wall of the drive gear (301). A gear limiting ring (303) is fixedly connected to the top of the inner wall of the mixing tank (1). The outer wall of the driven gear (302) is meshed with the outer wall of the gear limiting ring (303).

4. A powder coating melt extruder as claimed in claim 3, characterized in that: The bottom of the gear limiting ring (303) is fixedly connected to a rotating rod (304), and the outer wall of the rotating rod (304) is fixedly connected to a double-screw stirring blade (305).

5. A powder coating melt extruder as claimed in claim 4, characterised in that: Two driven gears (302) are provided, and two gear limiting rings (303) are symmetrically arranged with the motor rotating rod (204) as the center. Two double-screw stirring blades (305) are provided, and two double-screw stirring blades (305) are symmetrically arranged with the motor rotating rod (204) as the center.

6. A powder coating melt extruder as claimed in claim 4, characterised in that: The bottom of the inner wall of the mixing tank (1) is connected to a discharge pipe (306), and the bottom of the mixing tank (1) is fixedly connected to a support leg (307).

7. A powder coating melt extruder as claimed in claim 6, characterised in that: The support leg (307) is provided in three parts, and the three support legs (307) are evenly arranged around the motor rotating rod (204).

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