Spiral extrusion mechanism for low-temperature curing powder coating

Abstract

The utility model provides a low-temperature curing powder coating spiral extrusion mechanism which comprises a base, the top end of the base is fixedly connected with an extrusion cylinder, the top end of the extrusion cylinder is fixedly connected with a connecting cylinder, the top end of the connecting cylinder is fixedly connected with a powder box, a screening assembly is arranged in the powder box, and an amount control assembly is arranged at the top end of the connecting cylinder. The left side of the base is fixedly connected with a motor. Compared with the prior art, the powder coating screening device has the advantages that by arranging the screening assembly, large particles contained in powder coating can be screened out, the blocked large-particle coating can be scattered in the process that the powder coating continuously falls onto the screening plate, and therefore the heating and melting effect of the powder coating is improved; and by arranging the quantity control assembly, the connecting cylinder can be intermittently blocked, so that the powder coating in the powder box can intermittently enter the extrusion cylinder, the heating and melting effect of the powder coating is further improved, and the extrusion quality is improved.

Description

Technical Field

[0001] The utility model discloses a low-temperature solidified powder coating spiral extrusion mechanism, belonging to the coating production field. Background Art

[0002] The powder coating spiral extruder usually refers to a key equipment used in the production process of powder coating. It is mainly used to mix the raw materials of powder coating evenly and undergo a series of process such as high-temperature melting, plasticization, shearing, dispersion, etc., and finally form a uniform and delicate powder coating product that can be directly sprayed or baked and cured.

[0003] In the prior art, when a commonly used extrusion mechanism is in use, the powder coating directly enters the extrusion mechanism for melt extrusion, and the powder coating usually contains larger particles, which affects the effect of melt extrusion, and the powder coating is continuously transported to the inside of the extrusion mechanism, resulting in too much powder coating entering the extrusion equipment at one time, making the extrusion quality worse. For this reason, we propose a low-temperature curing epoxy polymer powder coating production melt extrusion device to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a low-temperature curing powder coating spiral extrusion mechanism to solve the problem that the powder coating in the above-mentioned background technology usually contains larger particles, which affects the effect of melt extrusion, and the powder coating is continuously transported to the interior of the extrusion mechanism, resulting in too much powder coating entering the extrusion equipment at one time, resulting in poor extrusion quality.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a low-temperature curing powder coating spiral extrusion mechanism, including a base, the top of the base is fixedly connected to an extrusion cylinder, the top of the extrusion cylinder is fixedly connected to a connecting cylinder, the top of the connecting cylinder is fixedly connected to a powder box, a screening assembly is arranged in the powder box, a quantity control assembly is arranged at the top of the connecting cylinder, a motor is fixedly connected to the left side of the base, a rotating rod is fixedly connected to the output end of the motor, a first pulley is sleeved on the surface of the rotating rod, a first belt is sleeved on the surface of the first pulley, a transmission wheel is sleeved on the left side of the surface of the extrusion cylinder, and a spiral extrusion rod is rotatably connected to the inner wall of the extrusion cylinder.

[0006] Furthermore, the screening assembly includes a telescopic rod fixedly connected to the inner wall of the powder box, a first spring is sleeved on the surface of the telescopic rod, a screening plate is movably connected to the top of the telescopic rod, a first push rod is rotatably connected to the bottom of the screening plate in the powder box, a second pulley is sleeved on the left side of the surface of the first push rod, and a second belt is provided on the surface of the second pulley.

[0007] Furthermore, the size of the sieve plate is consistent with the size of the powder box, and the sieve plate is fixed to the telescopic rod by bolts.

[0008] Furthermore, the control component includes a slide rail fixedly connected to the top of the connecting cylinder, a baffle is slidably connected in the slide rail, a second spring is fixedly connected to the top of the baffle, a second push rod is rotatably connected above the baffle in the slide rail, a third pulley is fixedly connected to the left side of the surface of the second push rod, and a third belt is arranged on the surface of the third pulley.

[0009] Furthermore, a water inlet cavity is provided in the spiral extrusion rod, the top of the base is located on the left side of the extrusion cylinder and is fixedly connected to a water tank, the top of the water tank is fixedly connected to a water pump, pipes are provided between the water pump and the water tank and between the water pump and the water inlet cavity, and a nozzle is provided at the top of the water inlet cavity.

[0010] Furthermore, a one-way valve is arranged in the nozzle, and an observation window is arranged at the front end of the extrusion cylinder.

[0011] Furthermore, a heating layer is arranged inside the extrusion barrel, and a heat-insulating layer is arranged on the surface of the extrusion barrel.

[0012] Furthermore, the inner wall of the bottom end of the connecting tube is inclined, and the powder box is conical.

[0013] The beneficial effects of the utility model are as follows: the telescopic rod, the first spring and the first push rod in the screening assembly can drive the screening plate to rise and fall repeatedly, so that not only can the larger particles contained in the powder coating be screened out, but also the intercepted larger particles of coating can be scattered in the process of the powder coating continuously falling to the screening plate, thereby improving the heating and melting effect of the powder coating, and the baffle is driven to rise and fall by the slide rail, the second spring and the second push rod in the quantity control assembly, so that the connecting cylinder can be intermittently blocked so that the powder coating in the powder box can intermittently enter the extrusion cylinder, which is beneficial to further improve the heating and melting effect of the powder coating and improve the quality of extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of a spiral extrusion mechanism for low-temperature curing powder coatings of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of a spiral extrusion mechanism for low-temperature curing powder coatings of the utility model;

[0017] Figure 3It is a schematic diagram of the front cross-sectional structure of a spiral extrusion mechanism for low-temperature curing powder coatings of the utility model;

[0018] Figure 4 It is a schematic diagram of the screening component structure of a spiral extrusion mechanism for low-temperature curing powder coatings of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of a quantity control component of a spiral extrusion mechanism for low-temperature curing powder coatings of the utility model;

[0020] In the figure: 1-base, 2-extrusion cylinder, 3-connecting cylinder, 4-powder box, 5-screening assembly, 51-telescopic rod, 52-first spring, 53-screening plate, 54-first push rod, 55-second pulley, 56-second belt, 6-quantity control assembly, 61-slide rail, 62-baffle, 63-second spring, 64-second push rod, 65-third pulley, 66-third belt, 7-motor, 8-rotating rod, 9-first pulley, 10-first belt, 11-driving wheel, 12-screw extrusion rod, 13-water inlet chamber, 14-water tank, 15-water pump, 16-sprinkler, 17-check valve, 18-heating layer, 19-observation window. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: a spiral extrusion mechanism for low-temperature curing powder coating, including a base 1, an extrusion cylinder 2 is fixedly connected to the top of the base 1, a connecting cylinder 3 is fixedly connected to the top of the extrusion cylinder 2, a powder box 4 is fixedly connected to the top of the connecting cylinder 3, a screening component 5 is arranged in the powder box 4, a quantity control component 6 is arranged at the top of the connecting cylinder 3, a motor 7 is fixedly connected to the left side of the base 1, a rotating rod 8 is fixedly connected to the output end of the motor 7, a first pulley 9 is sleeved on the surface of the rotating rod 8, a first belt 10 is sleeved on the surface of the first pulley 9, a transmission wheel 11 is sleeved on the left side of the surface of the extrusion cylinder 2, and a spiral extrusion rod 12 is rotatably connected to the inner wall of the extrusion cylinder 2.

[0023] By setting up the screening component 5, not only can the larger particles contained in the powder coating be screened out, but also the intercepted larger particles of coating can be broken up in the process of the powder coating continuously falling onto the screening plate, thereby improving the heating and melting effect of the powder coating. By setting up the quantity control component 6, the connecting cylinder can be intermittently blocked so that the powder coating in the powder box can intermittently enter the extrusion cylinder, which is beneficial to further improve the heating and melting effect of the powder coating and improve the quality of extrusion.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The utility model provides a technical solution: the screening component 5 includes a telescopic rod 51 fixedly connected to the inner wall of the powder box 4, a first spring 52 is sleeved on the surface of the telescopic rod 51, a screening plate 53 is movably connected to the top of the telescopic rod 51, a first push rod 54 is rotatably connected below the screening plate 53 in the powder box 4, a second pulley 55 is sleeved on the left side of the surface of the first push rod 54, and a second belt 56 is arranged on the surface of the second pulley 55. By setting the screening component 5, not only can the larger particles contained in the powder coating be screened out, but also the larger particles of coating that are intercepted can be scattered in the process of the powder coating continuously falling to the screening plate, thereby improving the heating and melting effect of the powder coating.

[0025] The size of the sieve plate 53 is consistent with that of the powder box 4, and the sieve plate 53 is fixed to the telescopic rod 51 by bolts. The sieve plate 53 can be separated from the telescopic rod 51 by loosening the bolts, so that the sieve plate 53 is easy to clean and replace.

[0026] The quantity control component 6 includes a slide rail 61 fixedly connected to the top of the connecting cylinder 3, a baffle 62 is slidably connected in the slide rail 61, a second spring 63 is fixedly connected to the top of the baffle 62, a second push rod 64 is rotatably connected above the baffle 62 in the slide rail 61, a third pulley 65 is fixedly connected to the left side of the surface of the second push rod 64, and a third belt 66 is arranged on the surface of the third pulley 65. By setting the quantity control component 6, the connecting cylinder can be intermittently blocked so that the powder coating in the powder box can intermittently enter the extrusion cylinder, which is conducive to further improving the heating and melting effect of the powder coating and improving the quality of extrusion.

[0027] A water inlet chamber 13 is provided in the spiral extrusion rod 12, a water tank 14 is fixedly connected to the top of the base 1 on the left side of the extrusion barrel 2, a water pump 15 is fixedly connected to the top of the water tank 14, pipes are provided between the water pump 15 and the water tank 14, and between the water pump 15 and the water inlet chamber 13, and a nozzle 16 is provided at the top of the water inlet chamber 13. The water pump 15 will extract the water inside the water tank 14 and transport it to the water inlet chamber 13 through the pipe, and then the water in the water inlet chamber 13 will be sprayed out through the nozzle 16, and the inner wall of the extrusion barrel 2 can be cleaned by the continuous rotation of the spiral extrusion rod 12.

[0028] A one-way valve 17 is provided in the nozzle 16, and an observation window 19 is provided at the front end of the extrusion tube 2. By providing the one-way valve 17, the nozzle 16 can be prevented from being blocked by paint during the daily operation of the mechanism, and the situation in the extrusion tube 2 can be observed by providing the observation window 19.

[0029] A heating layer 18 is provided inside the extrusion barrel 2, and a heat-insulating layer is provided on the surface of the extrusion barrel 2. The powder coating can be effectively heated and melted by providing the heating layer 18, and the heat-insulating layer is provided on the surface of the extrusion barrel 2 to prevent the external environment from affecting the heating and melting effect.

[0030] The inner wall at the bottom end of the connecting cylinder 3 is inclined, and the powder box 4 is conical. The inner wall at the bottom end of the connecting cylinder 3 is inclined and can guide the powder coating to pass through the powder box 4 and the connecting cylinder 3 in sequence and finally enter the extrusion cylinder 2.

[0031] Specific implementation method: First, start the motor 7, the motor 7 will drive the rotating rod 8 to rotate, the first belt 10 sleeved on the surface of the first pulley 9 will drive the extrusion barrel 2 with the transmission wheel 11 sleeved on the surface to rotate, the third belt 66 sleeved on the surface of the first pulley 9 will drive the second push rod 64 with the third pulley 65 sleeved on the surface to rotate, the second belt 56 sleeved on the surface of the third pulley 65 will drive the first push rod 54 with the second pulley 56 sleeved on the surface to rotate, then pour the powder coating into the powder box 4, while the first push rod 54 rotates, it will continuously push the screen plate 53, and cooperate with the first spring 52 and the telescopic rod 51 to drive the screen plate 53 to move upward The second push rod 64 is continuously rotated and the elastic force of the second spring 63 is cooperated with the baffle plate 62 to move up and down along the slide rail 61, so as to intermittently block the connecting tube 3 so that the powder coating in the powder box 4 can intermittently enter the extrusion tube 2, which is beneficial to further improve the heating and melting effect of the powder coating and improve the quality of extrusion.

[0032] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low temperature curing powder coating spiral extrusion mechanism, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to an extrusion tube (2), the top of the extrusion tube (2) is fixedly connected to a connecting tube (3), the top of the connecting tube (3) is fixedly connected to a powder box (4), a screening assembly (5) is arranged in the powder box (4), and a quantity control assembly (6) is arranged at the top of the connecting tube (3). The left side of the base (1) is fixedly connected to a motor (7), the output end of the motor (7) is fixedly connected to a rotating rod (8), the surface of the rotating rod (8) is sleeved with a first pulley (9), the surface of the first pulley (9) is sleeved with a first belt (10), the left side of the surface of the extrusion tube (2) is sleeved with a transmission wheel (11), and the inner wall of the extrusion tube (2) is rotatably connected to a spiral extrusion rod (12).

2. A low temperature curing powder coating spiral extrusion mechanism according to claim 1, characterized in that: The screening assembly (5) comprises a telescopic rod (51) fixedly connected to the inner wall of the powder box (4), a first spring (52) is sleeved on the surface of the telescopic rod (51), a screening plate (53) is movably connected to the top of the telescopic rod (51), a first push rod (54) is rotatably connected below the screening plate (53) in the powder box (4), a second pulley (55) is sleeved on the left side of the surface of the first push rod (54), and a second belt (56) is arranged on the surface of the second pulley (55).

3. A low temperature curing powder coating spiral extrusion mechanism according to claim 2, characterized in that: The size of the sieve plate (53) is consistent with the size of the powder box (4), and the sieve plate (53) is fixed to the telescopic rod (51) by bolts.

4. A low temperature curing powder coating spiral extrusion mechanism according to claim 1, characterized in that: The control assembly (6) comprises a slide rail (61) fixedly connected to the top end of the connecting tube (3), a baffle (62) being slidably connected inside the slide rail (61), a second spring (63) being fixedly connected to the top end of the baffle (62), a second push rod (64) being rotatably connected above the baffle (62) inside the slide rail (61), a third pulley (65) being fixedly connected to the left side of the surface of the second push rod (64), and a third belt (66) being arranged on the surface of the third pulley (65).

5. A low temperature curing powder coating spiral extrusion mechanism according to claim 1, characterized in that: A water inlet chamber (13) is arranged in the spiral extrusion rod (12); a water tank (14) is fixedly connected to the top of the base (1) located on the left side of the extrusion cylinder (2); a water pump (15) is fixedly connected to the top of the water tank (14); pipes are arranged between the water pump (15) and the water tank (14) and between the water pump (15) and the water inlet chamber (13); a nozzle (16) is arranged at the top of the water inlet chamber (13).

6. A low temperature curing powder coating spiral extrusion mechanism according to claim 5, characterized in that: A one-way valve (17) is arranged inside the nozzle (16), and an observation window (19) is arranged at the front end of the extrusion cylinder (2).

7. A low temperature curing powder coating spiral extrusion mechanism according to claim 1, characterized in that: A heating layer (18) is arranged inside the extrusion tube (2), and a heat-insulating layer is arranged on the surface of the extrusion tube (2).

8. The low temperature curing powder coating spiral extrusion mechanism according to claim 1, characterized in that: The inner wall of the bottom end of the connecting tube (3) is inclined, and the powder box (4) is conical.

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