Colorful coating double-screw granulator

Abstract

The utility model relates to the technical field of pelletizers, and discloses a multi-color coating double-screw pelletizer which comprises a base, a pelletizer body is fixedly arranged at the upper end of the base, a mixing mechanism is arranged at the upper end of the pelletizer body and comprises a rotating shaft, a second bevel gear is fixedly arranged at the lower end of the rotating shaft, and a first bevel gear is fixedly arranged at the lower end of the second bevel gear. A driving shaft is rotationally arranged on one side in the granulator main body, a third gear is fixedly arranged on one side of the driving shaft, a first bevel gear is fixedly arranged on the other side of the driving shaft, and a cam is fixedly arranged on the side, close to the first bevel gear, of the exterior of the driving shaft. According to the utility model, the cam rotates to intermittently jack up the feeding box upwards, so that the guide rod at the lower end of the feeding box slides at the upper end of the granulator main body, and the spring is extruded and stretched, thereby not only realizing the full mixing of raw materials, but also improving the consistency and quality of finished products, simultaneously facilitating the falling of the raw materials and preventing blockage.

Description

Technical Field

[0001] This utility model relates to the field of granulator technology, and in particular to a multi-color coating twin-screw granulator. Background Technology

[0002] In the production process of plastic door strips, plastic raw materials and various additives are first added into the equipment according to the predetermined formula ratio. Then, the twin-screw granulator starts to operate, forcibly conveying the materials and simultaneously carrying out mixing, shearing and dispersing operations to promote the full integration of raw materials and paint. While the raw materials uniformly absorb the paint, after being melted and fully mixed at high temperature, the plastic melt is extruded from the die head to form continuous strips. Subsequently, the strip material is sent to the cooling water tank. Finally, the pelletizer cuts it into granules, which can be used for the extrusion molding production of plastic door strips.

[0003] Most existing twin-screw granulators for multicolor coatings use a method of pouring a large amount of raw material into the feed hopper at once. However, this method is prone to causing the feed hopper to become clogged due to excessive material, preventing the material from entering the equipment smoothly. This affects a series of subsequent processes and reduces the overall efficiency of the equipment.

[0004] Therefore, those skilled in the art have provided a multi-color coating twin-screw granulator to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-color coating twin-screw granulator. The mixing mechanism ensures that the plastic raw materials inside the feeding box are mixed evenly, and the cooling fan enables the material at the discharge port to solidify quickly, effectively preventing the material from sticking together.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A twin-screw granulator for multi-color coatings includes a base, a granulator body fixedly mounted on the upper end of the base, a mixing mechanism mounted on the upper end of the granulator body, the mixing mechanism including a rotating shaft, a second bevel gear fixedly mounted on the lower end of the rotating shaft, a drive shaft rotatably mounted on one side inside the granulator body, a third gear fixedly mounted on one side of the drive shaft, a first bevel gear fixedly mounted on the other side of the drive shaft, a cam fixedly mounted on the outer side of the drive shaft near the first bevel gear, and multiple springs fixedly mounted on the upper end of the granulator body, with a feeding box fixedly mounted between the upper ends of the multiple springs.

[0008] A support plate is fixedly installed on one side of the upper end of the base. Two second spur gears are rotatably installed on one side of the support plate. A cooling fan is fixedly installed on one side of one of the two second spur gears, and a rotating rod is fixedly installed on the other side of the two second spur gears. A second motor is fixedly installed inside the support plate. A discharge port is fixedly installed on one side of the granulator body.

[0009] Furthermore, a plurality of guide rods are fixedly installed at the lower end of the feeding box, and the outer sides of the plurality of guide rods are respectively sleeved inside a plurality of springs. A plurality of stirring blades are fixedly installed on the outer side of the rotating shaft, and the lower outer ends of the plurality of guide rods are slidably installed on the upper end of the granulator body.

[0010] Furthermore, the cam is externally located at the lower end of the feeding box, and the first bevel gear is meshed with the second bevel gear.

[0011] Furthermore, the granulator body has two rotating screws inside, and a first spur gear is fixedly installed on one side of each screw. The third gear meshes with one of the two first spur gears, and a first motor is fixedly installed on one side of the upper end of the base.

[0012] Furthermore, one of the two first spur gears is fixedly disposed at the output end of the first motor, and the two first spur gears are meshed together. One side of one of the two second spur gears is fixedly disposed at the output end of the second motor, and the two second spur gears are meshed together.

[0013] Furthermore, a water tank is fixedly installed on the upper side of one side of the granulator body, a water pump is fixedly installed on one side of the water tank, a water pipe is fixedly installed at the output end of the water pump, and the outside of the water pipe is fixedly installed inside the discharge port.

[0014] Furthermore, a cutter is fixedly mounted on one side of the rotating rod by bolts, and the cutter is located on the discharge port side.

[0015] Furthermore, a feed pipe is fixedly installed at the lower end of the feeding box, a solenoid valve is installed outside the feed pipe, and the output end of the feed pipe is fixedly installed at the upper end of the granulator body.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model proposes a multi-color coating twin-screw granulator. When the first motor is running, the first spur gear will rotate synchronously, causing the third gear to rotate. This causes the drive shaft to drive the cam and the first bevel gear to rotate, and then the second bevel gear and the rotating shaft to rotate. This causes the stirring blades to rotate inside the feeding box, thus mixing the raw materials. The rotation of the cam will intermittently push the feeding box upward, causing the guide rod to slide on the upper part of the granulator body, and causing the spring to be compressed and stretched, achieving full mixing of the raw materials. This not only improves the working efficiency, but also improves the consistency and quality of the finished product, while facilitating the falling of the raw materials and preventing blockage.

[0018] 2. The present invention proposes a multi-color coating twin-screw granulator. When the plasticized material is extruded from the discharge port to form a continuous strip, the water pump is started to transport water from the water tank to the discharge port through the water pipe to cool the extruded strip material. Subsequently, the second motor drives the rotating rod and the cooling fan to rotate, causing the cutter to cut the cooled strip material into granules of the required size. The cooling fan dissipates heat from the discharge port and the surrounding water pipes to prevent the cut material from sticking together. Attached Figure Description

[0019] Figure 1 This is an isometric schematic diagram of the entire utility model;

[0020] Figure 2 This is a side-view axonometric schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the orthographic section of this utility model;

[0022] Figure 4 This is a cross-sectional isometric view of the present invention near the feeding box;

[0023] Figure 5 This is a bottom-view orthographic section schematic diagram of the present invention, close to the feeding box;

[0024] Figure 6 This is an isometric view of the present invention near the water pipe;

[0025] Figure 7 This is an isometric view of the present invention near the cutter.

[0026] Legend:

[0027] 1. Base; 2. First motor; 3. First spur gear; 4. Granulator body; 5. Mixing mechanism; 6. Water tank; 7. Water pipe; 8. Water pump; 9. Rotating rod; 10. Second spur gear; 11. Cooling fan; 12. Support plate; 13. Discharge port; 14. Second motor; 15. Cutter; 16. Screw rod; 17. Solenoid valve; 18. Feed pipe; 501. Drive shaft; 502. Third gear; 503. Feed box; 504. Spring; 505. Cam; 506. First bevel gear; 507. Second bevel gear; 508. Stirring blade; 509. Rotating shaft; 510. Guide rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-5 One embodiment provided by this utility model:

[0030] A multi-color coating twin-screw granulator includes a base 1, a granulator body 4 fixedly mounted on the upper end of the base 1, a mixing mechanism 5 mounted on the upper end of the granulator body 4, the mixing mechanism 5 including a rotating shaft 509, a second bevel gear 507 fixedly mounted on the lower end of the rotating shaft 509, a drive shaft 501 rotatably mounted on one side inside the granulator body 4, a third gear 502 fixedly mounted on one side of the drive shaft 501, a first bevel gear 506 fixedly mounted on the other side of the drive shaft 501, a cam 505 fixedly mounted on the outer side of the drive shaft 501 near the first bevel gear 506, and a plurality of springs 504 fixedly mounted on the upper end of the granulator body 4, with a feeding box 503 fixedly mounted between the upper ends of the plurality of springs 504.

[0031] Multiple guide rods 510 are fixedly installed at the lower end of the feeding box 503. The multiple guide rods 510 are respectively sleeved inside multiple springs 504. Multiple stirring blades 508 are fixedly installed on the outside of the rotating shaft 509. The lower ends of the multiple guide rods 510 are slidably installed on the upper end of the granulator body 4. The cam 505 is installed on the lower end of the feeding box 503. The first bevel gear 506 and the second bevel gear 507 are meshed and connected. The feeding box 503 is fixedly installed at the lower end of the feeding box 503. The solenoid valve 17 is installed on the outside of the feeding pipe 18. The output end of the feeding pipe 18 is fixedly installed on the upper end of the granulator body 4.

[0032] The granulator body 4 has two rotating screws 16 inside, and a first spur gear 3 is fixedly installed on one side of each screw 16. A third gear 502 is meshed with one of the two first spur gears 3. A first motor 2 is fixedly installed on one side of the upper end of the base 1. One of the two first spur gears 3 is fixedly installed at the output end of the first motor 2 and the two first spur gears 3 are meshed. One of the two second spur gears 10 is fixedly installed on one side at the output end of the second motor 14 and the two second spur gears 10 are meshed.

[0033] Specifically, when using the multicolor coating twin-screw granulator, the plastic raw materials and various additives are first poured into the feeding box 503. Then, the first motor 2 installed on the base 1 is started. After the first motor 2 starts running, the first spur gear 3 connected to its output end begins to rotate. Since the two first spur gears 3 mesh with each other, when one rotates, it will drive the other to rotate synchronously, thereby driving the two screw rods 16 connected to it to rotate in opposite directions in the granulator body 4. This ensures that the material can be stably and efficiently conveyed from the feed end to the discharge end in the granulator body 4, providing a reliable guarantee for the subsequent plasticizing and mixing processes.

[0034] At the same time, because the first spur gear 3 meshes with the third gear 502, the rotation of the first spur gear 3 will drive the third gear 502 to rotate. The rotation of the third gear 502 will cause the drive shaft 501 to rotate, which in turn will drive the cam 505 mounted on the drive shaft 501 to rotate synchronously with the first bevel gear 506. When the first bevel gear 506 rotates, it will drive the second bevel gear 507 meshed with it to rotate, causing the rotating shaft 509 connected to the second bevel gear 507 to rotate. At this time, the stirring blade 508 fixed outside the rotating shaft 509 rotates in the feeding box 503 to stir the raw materials in the box.

[0035] During the rotation of cam 505, it intermittently lifts the feeding box 503. At this time, the guide rod 510 at the lower end of the feeding box 503 slides on the upper end of the granulator body 4, compressing and stretching the spring 504, causing the feeding box 503 to vibrate up and down. When the solenoid valve 17 is activated, the raw material in the feeding box 503 enters the granulator body 4 through the bellows-like feed pipe 18. The bellows-like feed pipe 18 can adapt to the vibration of the feeding box 503, ensuring smooth material conveying. The feed pipe 18 is equipped with a filter screen. When the set feeding amount is reached, the solenoid valve 17 automatically closes the feed pipe 18 to accurately control the feeding amount and avoid material waste or excessive feeding that may affect product quality. The vibration of the stirring blades 508 and the feeding box 503 works in synergy to improve the mixing efficiency. It can quickly and fully mix plastic raw materials and additives, so that the materials reach a uniform state before entering the main body 4 of the granulator. This lays a good foundation for subsequent plasticizing and color paint mixing, effectively improves the stability of product quality, and can also effectively prevent the feed pipe 18 from clogging.

[0036] Driven by the screw 16, the material is conveyed from the feed end to the discharge end within the granulator body 4. During the conveying process, the material is subjected to the squeezing, shearing and friction of the screw, and the temperature gradually rises, achieving a good plasticizing effect. At the same time, it is fully mixed with the paint to ensure that the final product has uniform color and stable performance.

[0037] Reference Figures 1-7 A support plate 12 is fixedly installed on one side of the upper end of the base 1. Two second spur gears 10 are rotatably installed on one side of the support plate 12. A cooling fan 11 is fixedly installed on one side of one of the two second spur gears 10, and a rotating rod 9 is fixedly installed on the other side of the two second spur gears 10. A second motor 14 is fixedly installed inside the support plate 12. A discharge port 13 is fixedly installed on one side of the granulator body 4.

[0038] A water tank 6 is fixedly installed on the upper side of one side of the granulator body 4. A water pump 8 is fixedly installed on one side of the water tank 6. A water pipe 7 is fixedly installed at the output end of the water pump 8. The water pipe 7 is fixedly installed inside the discharge port 13. A cutter 15 is fixedly installed on one side of the rotating rod 9 by bolts. The cutter 15 is installed on one side of the discharge port 13.

[0039] Specifically, the plasticized material is extruded from the discharge port 13, forming a continuous strip. At this time, water in the water tank 6 is pumped to the discharge port 13 through the water pump 8 and water pipe 7 to rapidly cool the extruded strip material, causing it to solidify quickly and preventing it from sticking together. The collection frame at the top of the base 1 facilitates the collection of the material. Then, the second motor 14 starts, driving the connected second spur gear 10 to rotate. Since the two second spur gears 10 mesh with each other, the rotating rod 9 rotates accordingly. The cutter 15 fixed on the rotating rod 9 cuts the cooled strip... The material is cut into particles of the required specifications. The cutter 15 and the rotating rod 9 are fixedly connected by bolts. This not only makes it easy to add and remove the cutter 15 from the rotating rod 9, but also makes the operation very convenient when the cutter 15 is worn or needs to be replaced with a cutter of a different specification. This reduces equipment maintenance costs and improves production efficiency. In addition, another second spur gear 10 drives the cooling fan 11 to rotate, which dissipates heat from the discharge port 13 and the surrounding water pipes 7. The continuous heat dissipation process ensures that the water pipes 7 operate at a suitable temperature, ensuring that the water pipes 7 can operate stably for a long time.

[0040] Working principle: During use, the raw materials are poured into the feeding box 503. Then, the first motor 2 on the base 1 is started, causing the first spur gear 3 at its output end to rotate. Since the two first spur gears 3 are meshed together, when they rotate, they will drive the screw rod 16 to rotate in opposite directions inside the granulator body 4. Since the first spur gear 3 is meshed with the third gear 502, when the first spur gear 3 rotates, it will drive the third gear 502 to rotate. The rotation of the third gear 502 will cause the drive shaft 501 to drive the cam 505 and the first bevel gear 506 to rotate. The rotation of the first bevel gear 506 will drive the second bevel gear 507, which is meshed with it, to rotate, thereby causing the rotating shaft 509 to drive the external stirring blades 50. 8 rotates inside the feeding box 503 to stir the raw materials. The rotation of the cam 505 will intermittently lift the feeding box 503, so that the guide rod 510 at its lower end slides on the upper end of the granulator body 4 and squeezes and stretches the spring 504. When the solenoid valve 17 is activated, the raw materials inside the feeding box 503 will enter the granulator body 4 through the feed pipe 18. The feed pipe 18 has a corrugated pipe structure. When the set feeding amount is reached, the solenoid valve 17 closes the feed pipe 18. Under the action of the screw 16, the material is conveyed from the feeding end to the discharging end in the granulator body 4. During the conveying process, the material is subjected to the squeezing, shearing and friction of the screw, gradually heating up and plasticizing, while being fully mixed with the paint.

[0041] Secondly, the plasticized material is extruded from the discharge port 13 to form a continuous strip. At this time, water in the water tank 6 is transported to the discharge port 13 through the water pump 8 and the water pipe 7 to cool the extruded strip material. The second motor 14 runs and drives the second spur gear 10 connected to it to rotate. Since the two second spur gears 10 mesh with each other, the rotating rod 9 rotates accordingly. The cutter 15 fixed on the rotating rod 9 cuts the cooled strip material into granules of the required specifications. At the same time, another second spur gear 10 drives the cooling fan 11 to rotate to cool the discharge port 13 and the surrounding water pipe 7.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A twin-screw granulator for multi-color coatings, comprising a base (1), characterized in that: The base (1) is fixedly provided with a granulator body (4) at the upper end. The granulator body (4) is provided with a mixing mechanism (5) at the upper end. The mixing mechanism (5) includes a rotating shaft (509). A second bevel gear (507) is fixedly provided at the lower end of the rotating shaft (509). A drive shaft (501) is rotatably provided on one side inside the granulator body (4). A third gear (502) is fixedly provided on one side of the drive shaft (501). A first bevel gear (506) is fixedly provided on the other side of the drive shaft (501). A cam (505) is fixedly provided on the side of the drive shaft (501) near the first bevel gear (506). A plurality of springs (504) are fixedly provided at the upper end of the granulator body (4). A feeding box (503) is fixedly provided between the upper ends of the plurality of springs (504). A support plate (12) is fixedly installed on one side of the upper end of the base (1). Two second spur gears (10) are rotatably installed on one side of the support plate (12). A cooling fan (11) is fixedly installed on one side of one of the two second spur gears (10), and a rotating rod (9) is fixedly installed on the other side of the two second spur gears (10). A second motor (14) is fixedly installed inside the support plate (12). A discharge port (13) is fixedly installed on one side of the granulator body (4).

2. The multi-color coating twin-screw granulator according to claim 1, characterized in that: The lower end of the feeding box (503) is fixedly provided with multiple guide rods (510), and the outside of the multiple guide rods (510) is respectively sleeved inside multiple springs (504). The outside of the rotating shaft (509) is fixedly provided with multiple stirring blades (508), and the lower ends of the multiple guide rods (510) are all slidably provided on the upper end of the granulator body (4).

3. The multi-color coating twin-screw granulator according to claim 1, characterized in that: The cam (505) is externally disposed at the lower end of the feeding box (503), and the first bevel gear (506) is meshed with the second bevel gear (507).

4. The multi-color coating twin-screw granulator according to claim 1, characterized in that: The granulator body (4) has two rotating screws (16) inside. A first spur gear (3) is fixedly installed on one side of each of the two screws (16). The third gear (502) meshes with one of the two first spur gears (3). A first motor (2) is fixedly installed on one side of the upper end of the base (1).

5. A twin-screw granulator for multi-color coatings according to claim 4, characterized in that: One of the two first spur gears (3) is fixedly disposed at the output end of the first motor (2), and the two first spur gears (3) are meshed together. One of the two second spur gears (10) is fixedly disposed on one side at the output end of the second motor (14), and the two second spur gears (10) are meshed together.

6. The multi-color coating twin-screw granulator according to claim 1, characterized in that: A water tank (6) is fixedly installed on the upper side of one side of the granulator body (4), and a water pump (8) is fixedly installed on one side of the water tank (6). A water pipe (7) is fixedly installed at the output end of the water pump (8), and the water pipe (7) is fixedly installed inside the discharge port (13).

7. A twin-screw granulator for multi-color coatings according to claim 6, characterized in that: A cutter (15) is fixedly mounted on one side of the rotating rod (9) by bolts, and the cutter (15) is located on one side of the discharge port (13).

8. A twin-screw granulator for multi-color coatings according to claim 1, characterized in that: The feeding box (503) is fixedly provided with a feeding pipe (18) at the lower end, and a solenoid valve (17) is provided outside the feeding pipe (18). The output end of the feeding pipe (18) is fixedly provided at the upper end of the granulator body (4).

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