Polyurethane highlight powder coating extruder

Abstract

The utility model provides a polyurethane highlight powder coating extruder which comprises a shell, an extrusion cavity is formed in the shell, a limiting sieve plate is fixedly connected in the extrusion cavity, the extrusion cavity is divided into a stirring cavity and a discharging cavity by the limiting sieve plate, a plurality of sieve holes are formed in the limiting sieve plate, and a rotating main shaft is rotationally connected in the stirring cavity; stirring threads are arranged on the outer circle face of the rotating main shaft, a discharging port is formed in one end of the shell, and a feeding port is formed in the outer circle face of the shell. According to the scheme, the spherical cambered surface is arranged at the end, close to the first feeding channel, of the swing channel, so that the gravity of a raw material block generates pressure to the external feeding groove, the external feeding groove drives the second feeding channel, and the second feeding channel drives the swing channel to swing with the sphere center of the contact face of the swing channel and the first feeding channel as the circle center; therefore, the raw material blocks cannot be clamped at the joint of the swinging channel and the first feeding channel, manual stirring is not needed, and the purpose of improving the extrusion efficiency of the extruder is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating extrusion equipment, in particular to a polyurethane high-gloss powder coating extruder. Background Art

[0002] Polyurethane high gloss powder is a special powder coating that has good wear and corrosion resistance while providing a high gloss surface effect. This material is often used for surface treatment of furniture, automobiles, electronic products and other products that require high gloss and good protection.

[0003] For example, a Chinese patent discloses a "powder coating extruder" (patent number: CN107127955A), which includes an upper cover, a cooling device, a box, an inspection door, a bracket, a coating extrusion device, a controller, an exhaust fan, an air bag, an electromagnetic pulse valve, and a blowpipe. The box is provided with an upper box, and the upper box is detachably connected to the upper cover; the electromagnetic pulse valve is on one side of the box; the exhaust fan is arranged on one side inside the box; the controller is arranged on one side outside the box; and the inspection door is arranged on one side outside the box different from the controller. The above patent has the advantages of fully mixing solid powder and improving the utilization rate.

[0004] However, during the feeding process of the above extruder, since the block raw materials are easily stuck in the feeding port, the raw material blocks need to be manually stirred to fall down, which leads to a decrease in the extrusion efficiency of the powder coating extruder. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a polyurethane high-gloss powder coating extruder, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a polyurethane high-gloss powder coating extruder, characterized in that: it includes a shell, an extrusion chamber is opened in the shell, a limiting screen plate is fixedly connected in the extrusion chamber, the limiting screen plate divides the extrusion chamber into a stirring chamber and a discharge chamber, a plurality of sieve holes are opened on the limiting screen plate, a rotating main shaft is rotatably connected in the stirring chamber, a stirring thread is arranged on the outer cylindrical surface of the rotating main shaft, a discharge port is opened at one end of the shell, a feed port is opened on the outer cylindrical surface of the shell, and a swingable feed component is fixedly connected to the feed port.

[0009] Preferably, the feeding assembly includes a first feeding channel and a second feeding channel, the second feeding channel is fixedly connected to a swing channel at one end close to the first feeding channel, a spherical arc surface is provided at one end of the swing channel close to the first feeding channel, and the first feeding channel is adapted to the spherical arc surface at one end close to the swing channel.

[0010] Preferably, a plurality of first slots are formed on the outer circumferential surface of the second feed channel, an external feed slot is fixedly engaged in the first slot, and the axis of the first slot to the second feed channel is set at an equal arc.

[0011] Preferably, a driving motor is fixedly provided at one end of the stirring chamber away from the limiting screen plate, and the output shaft of the driving motor is fixedly connected to the rotating main shaft.

[0012] Preferably, the limiting screen plate is a conical surface, and the screen holes are arranged with equal arcs on the limiting screen plate.

[0013] Preferably, the axis of the sieve hole and the axis of the stirring chamber are parallel to each other.

[0014] (III) Beneficial effects

[0015] The utility model provides a polyurethane high-gloss powder coating extruder, which has the following beneficial effects:

[0016] 1. In this scheme, a spherical arc surface is provided at one end of the swing channel close to the first feed channel, so that the weight of the raw material block generates pressure on the external access trough, and the external access trough drives the second feed channel, and the second feed channel drives the swing channel to swing with the center of the sphere of the contact surface between the swing channel and the first feed channel as the center of the circle, thereby ensuring that the raw material block will not be stuck at the connection between the swing channel and the first feed channel, without manual stirring, to achieve the purpose of improving the extrusion efficiency of the extruder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 Based Figure 2 Schematic diagram of the structure of A.

[0020] In the figure: 11, shell; 12, limiting screen plate; 13, screen hole; 14, stirring chamber; 15, discharge chamber; 16, discharge port; 17, feed port; 18, rotating main shaft; 19, driving motor; 20, stirring thread; 21, first feed channel; 22, swing channel; 23, second feed channel; 24, first slot; 25, external access feed trough. DETAILED DESCRIPTION

[0021] The utility model embodiment provides a polyurethane high gloss powder coating extruder, such as Figure 1-3 As shown, it includes a shell 11, a limiting screen plate 12, a screen hole 13, a stirring chamber 14, a discharge chamber 15, a discharge port 16, an inlet port 17, a rotating main shaft 18, a driving motor 19, a stirring thread 20, a first feed channel 21, a swing channel 22, a second feed channel 23, a first slot 24, and an external feed trough 25.

[0022] like Figure 1-3 As shown, it includes a shell 11, an extrusion chamber is opened in the shell 11, a limiting screen plate 12 is fixedly connected in the extrusion chamber, the limiting screen plate 12 divides the extrusion chamber into a stirring chamber 14 and a discharge chamber 15, a plurality of screen holes 13 are opened on the limiting screen plate 12, a rotating main shaft 18 is rotatably connected in the stirring chamber 14, a stirring thread 20 is arranged on the outer circumferential surface of the rotating main shaft 18, a discharge port 16 is opened at one end of the shell 11, a feed port 17 is opened on the outer circumferential surface of the shell 11, and a swingable feed component is fixedly connected to the feed port 17.

[0023] It is worth noting that the limiting screen plate 12 is a conical surface, the screen holes 13 are arranged on the limiting screen plate 12 with equal arcs, and the axis of the screen holes 13 is parallel to the axis of the stirring chamber 14 .

[0024] The feeding component includes a first feeding channel 21 and a second feeding channel 23. The second feeding channel 23 is fixedly connected to a swing channel 22 at one end close to the first feeding channel 21. A spherical arc surface is provided at one end of the swing channel 22 close to the first feeding channel 21. The end of the first feeding channel 21 close to the swing channel 22 is adapted to the spherical arc surface of the swing channel 22.

[0025] Two first slots 24 are provided on the outer circumferential surface of the second feeding channel 23, and an external feeding slot 25 is fixedly engaged in the first slot 24. The axis of the first slot 24 and the second feeding channel 23 are arranged with equal arcs. A driving motor 19 is fixedly provided at one end of the stirring chamber 14 away from the limiting screen plate 12, and the output shaft of the driving motor 19 is fixedly connected to the rotating main shaft 18.

[0026] When the present scheme is used to extrude high-gloss powder coating, first, the powder coating raw material blocks are put into the two external access troughs 25 in batches in sequence. At this time, the external access trough 25 generates pressure due to the gravity of the raw material blocks themselves. Therefore, the external access trough 25 drives the second feed channel 23, and the second feed channel 23 drives the swing channel 22 to swing with the center of the contact surface between the swing channel 22 and the first feed channel 21 as the center of the circle, thereby ensuring that the raw material blocks will not get stuck in the external access trough 25 or the connection between the swing channel 22 and the first feed channel 21.

[0027] Then, the raw material block enters the stirring chamber 14 through the first feeding channel 21 and the driving motor 19 is started. The driving motor 19 drives the rotating main shaft 18 to rotate with the rotating main shaft 18 as the axis. The rotating main shaft 18 drives the stirring thread 20 to rotate with the rotating main shaft 18 as the axis. After the stirring thread 20 crushes and mixes the raw material block, the powdered coating is squeezed from the stirring chamber 14 through the sieve hole 13 into the discharge chamber 15.

[0028] Finally, the powdered coating material is extruded from the discharge chamber 15 through the discharge port 16 .

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane high gloss powder coating extruder, characterized by: The invention comprises a shell (11), wherein an extrusion chamber is provided in the shell (11), a limiting screen plate (12) is fixedly connected in the extrusion chamber, the limiting screen plate (12) divides the extrusion chamber into a stirring chamber (14) and a discharge chamber (15), the limiting screen plate (12) is provided with a plurality of screen holes (13), a rotating main shaft (18) is rotatably connected in the stirring chamber (14), a stirring thread (20) is arranged on the outer circumferential surface of the rotating main shaft (18), a discharge port (16) is provided at one end of the shell (11), a feed port (17) is provided on the outer circumferential surface of the shell (11), and a swingable feed component is fixedly connected to the feed port (17).

2. A polyurethane high gloss powder coating extruder according to claim 1, characterized in that: The feed assembly comprises a first feed channel (21) and a second feed channel (23); an end of the second feed channel (23) close to the first feed channel (21) is fixedly connected to a swing channel (22); an end of the swing channel (22) close to the first feed channel (21) is provided with a spherical arc surface; an end of the first feed channel (21) close to the swing channel (22) is adapted to the spherical arc surface of the swing channel (22).

3. A polyurethane high gloss powder coating extruder according to claim 2, characterized in that: A plurality of first slots (24) are provided on the outer circumferential surface of the second material feeding channel (23), an external material receiving slot (25) is fixedly engaged in the first slot (24), and the axis of the first slot (24) and the second material feeding channel (23) are arranged with equal arcs.

4. A polyurethane high gloss powder coating extruder according to claim 2, characterized in that: A driving motor (19) is fixedly arranged at one end of the stirring chamber (14) away from the limiting screen plate (12), and an output shaft of the driving motor (19) is fixedly connected to the rotating main shaft (18).

5. The polyurethane high gloss powder coating extruder according to claim 1, characterized in that: The limiting screen plate (12) is a conical curved surface, and the screen holes (13) are arranged on the limiting screen plate (12) with equal arcs.

6. The polyurethane high gloss powder coating extruder according to claim 1, characterized in that: The axis of the sieve hole (13) and the axis of the stirring chamber (14) are parallel to each other.

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