Cooling device of plastic particle cutting machine

Abstract

The utility model discloses a cooling device of a plastic particle cutting machine, which is applied to an extruder and comprises a water cooling device and an air cooling device, the water cooling device comprises a water tank and a cooling pipeline, the water tank is used for containing cooling water, and the air cooling device comprises a conveying belt and a fan. The water cooling device and the air cooling device are used for cooling, shaping and drying material strips extruded and formed by the extruder, the fans are installed above the conveying belt through a fan support, the multiple fans are arranged in the conveying direction of the conveying belt, a plurality of guide wheels are arranged in the water tank, and the guide wheels are arranged in the water tank. According to the utility model, the water cooling device and the air cooling device are used for cooling, shaping and drying material strips extruded and molded by the extruder, so that the material strips with higher temperature are prevented from causing overhigh temperature of water in the water tank to influence the cooling efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle granulation, in particular to a cooling device for a plastic particle granulator. Background Art

[0002] At present, the cooling device of mainstream pelletizer mainly adopts air cooling, which is to install a small fan on the conveyor belt and use the motor to rotate the small fan to cool the material strips on the conveyor belt. However, when cooling the material strips with higher temperature, more small fans need to be installed, which takes up too much space. At the same time, the cooling method of air cooling is limited by the indoor temperature. When the indoor temperature is high, the cooling effect of air cooling is low, and it is impossible to quickly cool and shape the material strips with higher temperature.

[0003] In view of the problem that the air cooling method cannot quickly cool and shape the pelletizer, CN 219855921 U discloses a water tank cooling device for a pelletizer, which is equipped with a water tank in front of the pelletizer to quickly cool and shape the high-temperature material strips by water cooling. After the high-temperature material strips pass through the water tank, the temperature of the material strips is quickly reduced, but the high-temperature material body will cause the temperature of the cooling water in the water tank to rise, thereby affecting the cooling efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cooling device for a plastic pelletizer, which is applied to an extruder and includes a water cooling device and an air cooling device. The water cooling device includes a water trough and a cooling pipeline. The water trough is used to load cooling water. The air cooling device includes a conveyor belt and a fan. The water cooling device and the air cooling device cool, shape and dry the material strips extruded by the extruder.

[0005] Preferably, the fan is installed above the conveyor belt through a fan bracket.

[0006] Preferably, a plurality of the fans are provided, and the plurality of the fans are arranged along the transmission direction of the conveyor belt.

[0007] Preferably, a plurality of guide wheels arranged in an array are provided in the water tank, and the guide wheels are installed in the water tank through guide wheel brackets.

[0008] Preferably, the cooling pipelines are laid on both sides and the bottom of the water tank, and the cooling water in the water tank is heat exchanged through the cooling pipelines.

[0009] Preferably, the cooling pipeline is provided with a water inlet pipe, a water outlet pipe, a diverter pipe and a branch pipe, two diverter pipes are provided, and the two diverter pipes are located at both ends of a plurality of branch pipes to form a mesh structure.

[0010] Preferably, at least one mesh structure is provided.

[0011] Preferably, the water inlet pipe is connected to a diversion pipe, and the water outlet pipe is connected to another diversion pipe.

[0012] Preferably, the cooling pipeline is made of stainless steel.

[0013] Preferably: a bracket is provided between the water cooling device and the air cooling device, and the bracket plays a supporting role for the material strips.

[0014] Technical effects and advantages of the utility model:

[0015] In the utility model, the water cooling device and the air cooling device cool, shape and dry the material strips extruded by the extruder, so as to prevent the material strips with higher temperature from causing the water temperature in the water tank to be too high and thus affecting the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a cooling device for a plastic pelletizer provided in an embodiment of the present application;

[0017] Figure 2 It is a structural schematic diagram of an air cooling device in a cooling device for a plastic pelletizer provided in an embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of a water cooling device in a cooling device for a plastic pelletizer provided in an embodiment of the present application;

[0019] Figure 4 It is a structural schematic diagram of a cooling pipeline in a cooling device for a plastic pelletizer provided in an embodiment of the present application.

[0020] In the figure: 1. unloading device; 2. extruder; 3. water cooling device; 31. water trough; 32. guide wheel; 33. guide wheel bracket; 4. bracket; 5. air cooling device; 51. conveyor belt; 52. fan; 53. fan bracket; 6. pelletizing device; 7. material strip; 8. cooling pipeline; 81. water inlet pipe; 82. water outlet pipe; 83. diversion pipe; 84. branch pipe. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0022] See also Figure 1As shown, in this embodiment, a cooling device for a plastic pelletizer is provided, including a water cooling device 3 and an air cooling device 5. The water cooling device 3 and the air cooling device 5 cool, shape and dry the material strips 7 extruded by the extruder 2.

[0023] Specifically, the extruder 2 is connected to the feeding device 1, the pellets are fed from the feeding device 1, and are extruded into material strips 7 through the extruder 2. The material strips 7 are quickly cooled and shaped by the water cooling device 3, and then passed through the bracket 4, and then conveyed to the air cooling device 5, the material strips 7 are further cooled and shaped, and the material strips 7 are also dried. Finally, the material strips 7 are conveyed to the pelletizing device 6 for pelletizing.

[0024] See also Figure 2 As shown, the air cooling device 5 includes a conveyor belt 51 and a fan 52 . The fan 52 is installed above the conveyor belt 51 through a fan bracket 53 . A plurality of fans 52 are provided, and the plurality of fans 52 are arranged along the transmission direction of the conveyor belt 51 .

[0025] See also Figure 3-4 As shown, the water cooling device 3 includes a water trough 31 and a cooling pipeline 8. The water trough 31 is used to load cooling water. A plurality of guide wheels 32 are arranged in the water trough 31. The guide wheels 32 are installed in the water trough 31 through guide wheel brackets 33. After the material strip 7 is extruded from the extruder 2, it enters the water trough 31, passes through a plurality of guide wheels 32, and then passes through the bracket 4. The bracket 4 supports the material strip 7. The cooling water in the water trough 31 quickly cools and shapes the material strip 7 with a higher temperature, and transmits the material strip 7 through the guide wheels 32.

[0026] The cooling pipeline 8 is provided with an inlet pipe 81, an outlet pipe 82, a diverter pipe 83 and a branch pipe 84. Two diverter pipes 83 are provided. The two diverter pipes 83 are located at both ends of a number of branch pipes 84 to form a mesh structure, and at least one mesh structure is provided. The inlet pipe 81 is connected to one diverter pipe 83, and the outlet pipe 82 is connected to another diverter pipe 83. Tap water with a temperature of 8-12°C enters the diverter pipe 83 and the branch pipe 84 from the inlet pipe 81, and then flows out from the outlet pipe 82.

[0027] Furthermore, cooling pipes 8 are laid on both sides and the bottom of the water tank 31. The cooling water in the water tank is heat exchanged through the cooling pipes 8 to reduce the temperature of the cooling water in the water tank, thereby preventing the higher temperature of the material strips 7 from causing the cooling water temperature in the water tank 31 to be too high and affecting the cooling efficiency.

[0028] Furthermore, the cooling pipeline 8 is made of stainless steel.

[0029] The working principle of the utility model is:

[0030] The pellets are discharged from the discharge device 1, extruded into strips 7 by the extruder 2, and quickly cooled and shaped by the water cooling device 3. The guide wheel 32 in the water tank 31 conveys the strips 7 to the bracket 4, and then enters the air cooling device 4. The fan 52 on the air cooling device 4 further cools and shapes the strips 7, and also dries the strips. Finally, the strips 7 are conveyed to the pelletizing device 5 by the conveyor belt 51 for pelletizing.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A cooling device for a plastic pelletizer, applied to an extruder (2), comprising a water cooling device (3) and an air cooling device (5), characterized in that: The water cooling device (3) comprises a water tank (31) and a cooling pipeline (8), the water tank (31) is used to load cooling water, and the air cooling device (5) comprises a conveyor belt (51) and a fan (52). The water cooling device (3) and the air cooling device (5) cool, shape and dry the material strips (7) extruded by the extruder (2).

2. A cooling device for a plastic pelletizer according to claim 1, characterized in that: The fan (52) is installed above the conveyor belt (51) via a fan bracket (53).

3. A cooling device for a plastic pelletizer according to claim 2, characterized in that: A plurality of the fans (52) are provided, and the plurality of the fans (52) are arranged in an array along the transmission direction of the conveyor belt (51).

4. A cooling device for a plastic pelletizer according to claim 1, characterized in that: A plurality of guide wheels (32) arranged in an array are arranged in the water tank (31), and the guide wheels (32) are installed in the water tank (31) via guide wheel brackets (33).

5. A cooling device for a plastic pelletizer according to claim 1, characterized in that: The cooling pipeline (8) is laid on both sides and the bottom of the water tank (31), and heat is exchanged with the cooling water in the water tank (31) through the cooling pipeline (8).

6. A cooling device for a plastic pelletizer according to claim 5, characterized in that: The cooling pipeline (8) is provided with a water inlet pipe (81), a water outlet pipe (82), a diverter pipe (83) and a branch pipe (84). Two diverter pipes (83) are provided. The two diverter pipes (83) are located at both ends of a plurality of branch pipes (84) to form a mesh structure.

7. A cooling device for a plastic pelletizer according to claim 6, characterized in that: At least one mesh structure is provided.

8. A cooling device for a plastic pelletizer according to claim 7, characterized in that: The water inlet pipe (81) is connected to a diversion pipe (83), and the water outlet pipe (82) is connected to another diversion pipe (83).

9. A cooling device for a plastic pelletizer according to claim 5, characterized in that: The cooling pipeline (8) is made of stainless steel.

10. A cooling device for a plastic pelletizer according to claim 1, characterized in that: A bracket (4) is provided between the water cooling device (3) and the air cooling device (5), and the bracket (4) plays a supporting role for the material strip (7).

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